Setup renovate for dist-workspace.toml

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.gitattributes

@@ -5,6 +5,9 @@ crates/ruff_linter/resources/test/fixtures/pycodestyle/W605_1.py text eol=crlf
 crates/ruff_linter/resources/test/fixtures/pycodestyle/W391_2.py text eol=crlf
 crates/ruff_linter/resources/test/fixtures/pycodestyle/W391_3.py text eol=crlf
 
+crates/ruff_python_formatter/resources/test/fixtures/ruff/f-string-carriage-return-newline.py text eol=crlf
+crates/ruff_python_formatter/tests/snapshots/format@f-string-carriage-return-newline.py.snap text eol=crlf
+
 crates/ruff_python_formatter/resources/test/fixtures/ruff/docstring_code_examples_crlf.py text eol=crlf
 crates/ruff_python_formatter/tests/snapshots/format@docstring_code_examples_crlf.py.snap text eol=crlf
 
@@ -12,9 +15,16 @@ crates/ruff_python_parser/resources/invalid/re_lexing/line_continuation_windows_
 crates/ruff_python_parser/resources/invalid/re_lex_logical_token_windows_eol.py text eol=crlf
 crates/ruff_python_parser/resources/invalid/re_lex_logical_token_mac_eol.py text eol=cr
 
+crates/ruff_linter/resources/test/fixtures/ruff/RUF046_CR.py text eol=cr
+crates/ruff_linter/resources/test/fixtures/ruff/RUF046_LF.py text eol=lf
+
+crates/ruff_linter/resources/test/fixtures/pyupgrade/UP018_CR.py text eol=cr
+crates/ruff_linter/resources/test/fixtures/pyupgrade/UP018_LF.py text eol=lf
+
 crates/ruff_python_parser/resources/inline linguist-generated=true
 
 ruff.schema.json -diff linguist-generated=true text=auto eol=lf
+ty.schema.json -diff linguist-generated=true text=auto eol=lf
 crates/ruff_python_ast/src/generated.rs -diff linguist-generated=true text=auto eol=lf
 crates/ruff_python_formatter/src/generated.rs -diff linguist-generated=true text=auto eol=lf
 *.md.snap linguist-language=Markdown

.github/CODEOWNERS

@@ -14,11 +14,11 @@
 # flake8-pyi
 /crates/ruff_linter/src/rules/flake8_pyi/ @AlexWaygood
 
-# Script for fuzzing the parser/red-knot etc.
+# Script for fuzzing the parser/ty etc.
 /python/py-fuzzer/ @AlexWaygood
 
-# red-knot
-/crates/red_knot* @carljm @MichaReiser @AlexWaygood @sharkdp @dcreager
+# ty
+/crates/ty* @carljm @MichaReiser @AlexWaygood @sharkdp @dcreager
 /crates/ruff_db/ @carljm @MichaReiser @AlexWaygood @sharkdp @dcreager
-/scripts/knot_benchmark/ @carljm @MichaReiser @AlexWaygood @sharkdp @dcreager
-/crates/red_knot_python_semantic @carljm @AlexWaygood @sharkdp @dcreager
+/scripts/ty_benchmark/ @carljm @MichaReiser @AlexWaygood @sharkdp @dcreager
+/crates/ty_python_semantic @carljm @AlexWaygood @sharkdp @dcreager

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +1,8 @@
 blank_issues_enabled: true
 contact_links:
+  - name: Report an issue with ty
+    url: https://github.com/astral-sh/ty/issues/new/choose
+    about: Please report issues for our type checker ty in the ty repository.
   - name: Documentation
     url: https://docs.astral.sh/ruff
     about: Please consult the documentation before creating an issue.

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,8 +1,9 @@
 <!--
-Thank you for contributing to Ruff! To help us out with reviewing, please consider the following:
+Thank you for contributing to Ruff/ty! To help us out with reviewing, please consider the following:
 
 - Does this pull request include a summary of the change? (See below.)
-- Does this pull request include a descriptive title?
+- Does this pull request include a descriptive title? (Please prefix with `[ty]` for ty pull
+  requests.)
 - Does this pull request include references to any relevant issues?
 -->
 

.github/actionlint.yaml

@@ -6,5 +6,8 @@ self-hosted-runner:
   labels:
     - depot-ubuntu-latest-8
     - depot-ubuntu-22.04-16
+    - depot-ubuntu-22.04-32
+    - depot-windows-2022-16
     - github-windows-2025-x86_64-8
     - github-windows-2025-x86_64-16
+    - codspeed-macro

.github/mypy-primer-ty.toml

@@ -0,0 +1,8 @@
+#:schema ../ty.schema.json
+# Configuration overrides for the mypy primer run
+
+# Enable off-by-default rules.
+[rules]
+possibly-unresolved-reference = "warn"
+unused-ignore-comment = "warn"
+division-by-zero = "warn"

.github/renovate.json5

@@ -16,7 +16,7 @@
   pep621: {
     // The default for this package manager is to only search for `pyproject.toml` files
     // found at the repository root: https://docs.renovatebot.com/modules/manager/pep621/#file-matching
-    fileMatch: ["^(python|scripts)/.*pyproject\\.toml$"],
+    managerFilePatterns: ["/^(python|scripts)/.*pyproject\\.toml$/"],
   },
   pip_requirements: {
     // The default for this package manager is to run on all requirements.txt files:
@@ -34,12 +34,32 @@
   npm: {
     // The default for this package manager is to only search for `package.json` files
     // found at the repository root: https://docs.renovatebot.com/modules/manager/npm/#file-matching
-    fileMatch: ["^playground/.*package\\.json$"],
+    managerFilePatterns: ["/^playground/.*package\\.json$/"],
   },
+  customManagers: [
+    {
+      customType: "regex",
+      managerFilePatterns: ["/^dist-workspace\\.toml$/"],
+      matchStrings: [
+        '"(?<depName>actions/[^"]+)" = "(?<currentDigest>[a-f0-9]{40})"\\s*#\\s*(?<currentValue>v[\\d\\.]+).*'
+      ],
+      datasourceTemplate: "github-tags",
+      autoReplaceStringTemplate: '"{{depName}}" = "{{newDigest}}" # {{newValue}}"',
+      extractVersionTemplate: "^(?<version>v[\\d\\.]+)$",
+      versioningTemplate: "semver"
+    }
+  ],
   "pre-commit": {
     enabled: true,
   },
   packageRules: [
+    // Ignore GitHub Actions in generated release.yml (managed by cargo-dist)
+    {
+      matchManagers: ["github-actions"],
+      matchFileNames: [".github/workflows/release.yml"],
+      enabled: false,
+      description: "Ignore GitHub Actions in release.yml as it's generated by cargo-dist",
+    },
     // Pin GitHub Actions to immutable SHAs.
     {
       matchDepTypes: ["action"],
@@ -106,6 +126,11 @@
       matchManagers: ["cargo"],
       matchPackageNames: ["strum"],
       description: "Weekly update of strum dependencies",
+    },
+    {
+      groupName: "cargo-dist GitHub Actions",
+      matchManagers: ["custom.regex"],
+      description: "Weekly update of GitHub Actions dependencies managed by cargo-dist",
     }
   ],
   vulnerabilityAlerts: {

.github/workflows/build-binaries.yml

@@ -43,13 +43,13 @@ jobs:
         with:
           submodules: recursive
           persist-credentials: false
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build sdist"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@35be3186fc8e037e329f06b68dcd807d83dcc6dc # v1.49.2
         with:
           command: sdist
           args: --out dist
@@ -72,14 +72,14 @@ jobs:
         with:
           submodules: recursive
           persist-credentials: false
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: x64
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels - x86_64"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@35be3186fc8e037e329f06b68dcd807d83dcc6dc # v1.49.2
         with:
           target: x86_64
           args: --release --locked --out dist
@@ -114,14 +114,14 @@ jobs:
         with:
           submodules: recursive
           persist-credentials: false
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: arm64
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels - aarch64"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@35be3186fc8e037e329f06b68dcd807d83dcc6dc # v1.49.2
         with:
           target: aarch64
           args: --release --locked --out dist
@@ -170,14 +170,14 @@ jobs:
         with:
           submodules: recursive
           persist-credentials: false
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: ${{ matrix.platform.arch }}
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@35be3186fc8e037e329f06b68dcd807d83dcc6dc # v1.49.2
         with:
           target: ${{ matrix.platform.target }}
           args: --release --locked --out dist
@@ -223,14 +223,14 @@ jobs:
         with:
           submodules: recursive
           persist-credentials: false
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: x64
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@35be3186fc8e037e329f06b68dcd807d83dcc6dc # v1.49.2
         with:
           target: ${{ matrix.target }}
           manylinux: auto
@@ -298,19 +298,19 @@ jobs:
         with:
           submodules: recursive
           persist-credentials: false
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@35be3186fc8e037e329f06b68dcd807d83dcc6dc # v1.49.2
         with:
           target: ${{ matrix.platform.target }}
           manylinux: auto
           docker-options: ${{ matrix.platform.maturin_docker_options }}
           args: --release --locked --out dist
-      - uses: uraimo/run-on-arch-action@ac33288c3728ca72563c97b8b88dda5a65a84448 # v2
+      - uses: uraimo/run-on-arch-action@d94c13912ea685de38fccc1109385b83fd79427d # v3.0.1
         if: ${{ matrix.platform.arch != 'ppc64' && matrix.platform.arch != 'ppc64le'}}
         name: Test wheel
         with:
@@ -363,14 +363,14 @@ jobs:
         with:
           submodules: recursive
           persist-credentials: false
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: x64
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@35be3186fc8e037e329f06b68dcd807d83dcc6dc # v1.49.2
         with:
           target: ${{ matrix.target }}
           manylinux: musllinux_1_2
@@ -429,19 +429,19 @@ jobs:
         with:
           submodules: recursive
           persist-credentials: false
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@35be3186fc8e037e329f06b68dcd807d83dcc6dc # v1.49.2
         with:
           target: ${{ matrix.platform.target }}
           manylinux: musllinux_1_2
           args: --release --locked --out dist
           docker-options: ${{ matrix.platform.maturin_docker_options }}
-      - uses: uraimo/run-on-arch-action@ac33288c3728ca72563c97b8b88dda5a65a84448 # v2
+      - uses: uraimo/run-on-arch-action@d94c13912ea685de38fccc1109385b83fd79427d # v3.0.1
         name: Test wheel
         with:
           arch: ${{ matrix.platform.arch }}

.github/workflows/build-docker.yml

@@ -38,9 +38,9 @@ jobs:
           submodules: recursive
           persist-credentials: false
 
-      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3
+      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
-      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3
+      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -63,7 +63,7 @@ jobs:
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5
+        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
         with:
           images: ${{ env.RUFF_BASE_IMG }}
           # Defining this makes sure the org.opencontainers.image.version OCI label becomes the actual release version and not the branch name
@@ -79,7 +79,7 @@ jobs:
       # Adapted from https://docs.docker.com/build/ci/github-actions/multi-platform/
       - name: Build and push by digest
         id: build
-        uses: docker/build-push-action@471d1dc4e07e5cdedd4c2171150001c434f0b7a4 # v6
+        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
         with:
           context: .
           platforms: ${{ matrix.platform }}
@@ -113,17 +113,17 @@ jobs:
     if: ${{ inputs.plan != '' && !fromJson(inputs.plan).announcement_tag_is_implicit }}
     steps:
       - name: Download digests
-        uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e # v4.2.1
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         with:
           path: /tmp/digests
           pattern: digests-*
           merge-multiple: true
 
-      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3
+      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5
+        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
         with:
           images: ${{ env.RUFF_BASE_IMG }}
           # Order is on purpose such that the label org.opencontainers.image.version has the first pattern with the full version
@@ -131,7 +131,7 @@ jobs:
             type=pep440,pattern={{ version }},value=${{ fromJson(inputs.plan).announcement_tag }}
             type=pep440,pattern={{ major }}.{{ minor }},value=${{ fromJson(inputs.plan).announcement_tag }}
 
-      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3
+      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -167,9 +167,9 @@ jobs:
           - debian:bookworm-slim,bookworm-slim,debian-slim
           - buildpack-deps:bookworm,bookworm,debian
     steps:
-      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3
+      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
-      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3
+      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -219,7 +219,7 @@ jobs:
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5
+        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
         # ghcr.io prefers index level annotations
         env:
           DOCKER_METADATA_ANNOTATIONS_LEVELS: index
@@ -231,7 +231,7 @@ jobs:
             ${{ env.TAG_PATTERNS }}
 
       - name: Build and push
-        uses: docker/build-push-action@471d1dc4e07e5cdedd4c2171150001c434f0b7a4 # v6
+        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
         with:
           context: .
           platforms: linux/amd64,linux/arm64
@@ -256,17 +256,17 @@ jobs:
     if: ${{ inputs.plan != '' && !fromJson(inputs.plan).announcement_tag_is_implicit }}
     steps:
       - name: Download digests
-        uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e # v4.2.1
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         with:
           path: /tmp/digests
           pattern: digests-*
           merge-multiple: true
 
-      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3
+      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5
+        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
         env:
           DOCKER_METADATA_ANNOTATIONS_LEVELS: index
         with:
@@ -276,7 +276,7 @@ jobs:
             type=pep440,pattern={{ version }},value=${{ fromJson(inputs.plan).announcement_tag }}
             type=pep440,pattern={{ major }}.{{ minor }},value=${{ fromJson(inputs.plan).announcement_tag }}
 
-      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3
+      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}

.github/workflows/ci.yaml

@@ -36,8 +36,8 @@ jobs:
       code: ${{ steps.check_code.outputs.changed }}
       # Flag that is raised when any code that affects the fuzzer is changed
       fuzz: ${{ steps.check_fuzzer.outputs.changed }}
-      # Flag that is set to "true" when code related to red-knot changes.
-      red_knot: ${{ steps.check_red_knot.outputs.changed }}
+      # Flag that is set to "true" when code related to ty changes.
+      ty: ${{ steps.check_ty.outputs.changed }}
 
       # Flag that is set to "true" when code related to the playground changes.
       playground: ${{ steps.check_playground.outputs.changed }}
@@ -84,7 +84,7 @@ jobs:
           if git diff --quiet "${MERGE_BASE}...HEAD" -- ':Cargo.toml' \
             ':Cargo.lock' \
             ':crates/**' \
-            ':!crates/red_knot*/**' \
+            ':!crates/ty*/**' \
             ':!crates/ruff_python_formatter/**' \
             ':!crates/ruff_formatter/**' \
             ':!crates/ruff_dev/**' \
@@ -145,7 +145,7 @@ jobs:
         run: |
           if git diff --quiet "${MERGE_BASE}...HEAD" -- ':**' \
             ':!**/*.md' \
-            ':crates/red_knot_python_semantic/resources/mdtest/**/*.md' \
+            ':crates/ty_python_semantic/resources/mdtest/**/*.md' \
             ':!docs/**' \
             ':!assets/**' \
             ':.github/workflows/ci.yaml' \
@@ -168,15 +168,15 @@ jobs:
               echo "changed=true" >> "$GITHUB_OUTPUT"
           fi
 
-      - name: Check if the red-knot code changed
-        id: check_red_knot
+      - name: Check if the ty code changed
+        id: check_ty
         env:
           MERGE_BASE: ${{ steps.merge_base.outputs.sha }}
         run: |
           if git diff --quiet "${MERGE_BASE}...HEAD" -- \
             ':Cargo.toml' \
             ':Cargo.lock' \
-            ':crates/red_knot*/**' \
+            ':crates/ty*/**' \
             ':crates/ruff_db/**' \
             ':crates/ruff_annotate_snippets/**' \
             ':crates/ruff_python_ast/**' \
@@ -184,6 +184,7 @@ jobs:
             ':crates/ruff_python_trivia/**' \
             ':crates/ruff_source_file/**' \
             ':crates/ruff_text_size/**' \
+            ':crates/ruff_benchmark/**' \
             ':.github/workflows/ci.yaml' \
           ; then
               echo "changed=false" >> "$GITHUB_OUTPUT"
@@ -221,7 +222,7 @@ jobs:
       - name: "Clippy"
         run: cargo clippy --workspace --all-targets --all-features --locked -- -D warnings
       - name: "Clippy (wasm)"
-        run: cargo clippy -p ruff_wasm -p red_knot_wasm --target wasm32-unknown-unknown --all-features --locked -- -D warnings
+        run: cargo clippy -p ruff_wasm -p ty_wasm --target wasm32-unknown-unknown --all-features --locked -- -D warnings
 
   cargo-test-linux:
     name: "cargo test (linux)"
@@ -237,23 +238,23 @@ jobs:
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install mold"
-        uses: rui314/setup-mold@e16410e7f8d9e167b74ad5697a9089a35126eb50 # v1
+        uses: rui314/setup-mold@85c79d00377f0d32cdbae595a46de6f7c2fa6599 # v1
       - name: "Install cargo nextest"
-        uses: taiki-e/install-action@09dc018eee06ae1c9e0409786563f534210ceb83 # v2
+        uses: taiki-e/install-action@d12e869b89167df346dd0ff65da342d1fb1202fb # v2.53.2
         with:
           tool: cargo-nextest
       - name: "Install cargo insta"
-        uses: taiki-e/install-action@09dc018eee06ae1c9e0409786563f534210ceb83 # v2
+        uses: taiki-e/install-action@d12e869b89167df346dd0ff65da342d1fb1202fb # v2.53.2
         with:
           tool: cargo-insta
-      - name: Red-knot mdtests (GitHub annotations)
-        if: ${{ needs.determine_changes.outputs.red_knot == 'true' }}
+      - name: ty mdtests (GitHub annotations)
+        if: ${{ needs.determine_changes.outputs.ty == 'true' }}
         env:
           NO_COLOR: 1
           MDTEST_GITHUB_ANNOTATIONS_FORMAT: 1
         # Ignore errors if this step fails; we want to continue to later steps in the workflow anyway.
         # This step is just to get nice GitHub annotations on the PR diff in the files-changed tab.
-        run: cargo test -p red_knot_python_semantic --test mdtest || true
+        run: cargo test -p ty_python_semantic --test mdtest || true
       - name: "Run tests"
         shell: bash
         env:
@@ -268,7 +269,7 @@ jobs:
       # sync, not just public items. Eventually we should do this for all
       # crates; for now add crates here as they are warning-clean to prevent
       # regression.
-      - run: cargo doc --no-deps -p red_knot_python_semantic -p red_knot -p red_knot_test -p ruff_db --document-private-items
+      - run: cargo doc --no-deps -p ty_python_semantic -p ty -p ty_test -p ruff_db --document-private-items
         env:
           # Setting RUSTDOCFLAGS because `cargo doc --check` isn't yet implemented (https://github.com/rust-lang/cargo/issues/10025).
           RUSTDOCFLAGS: "-D warnings"
@@ -276,6 +277,10 @@ jobs:
         with:
           name: ruff
           path: target/debug/ruff
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: ty
+          path: target/debug/ty
 
   cargo-test-linux-release:
     name: "cargo test (linux, release)"
@@ -291,13 +296,13 @@ jobs:
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install mold"
-        uses: rui314/setup-mold@e16410e7f8d9e167b74ad5697a9089a35126eb50 # v1
+        uses: rui314/setup-mold@85c79d00377f0d32cdbae595a46de6f7c2fa6599 # v1
       - name: "Install cargo nextest"
-        uses: taiki-e/install-action@09dc018eee06ae1c9e0409786563f534210ceb83 # v2
+        uses: taiki-e/install-action@d12e869b89167df346dd0ff65da342d1fb1202fb # v2.53.2
         with:
           tool: cargo-nextest
       - name: "Install cargo insta"
-        uses: taiki-e/install-action@09dc018eee06ae1c9e0409786563f534210ceb83 # v2
+        uses: taiki-e/install-action@d12e869b89167df346dd0ff65da342d1fb1202fb # v2.53.2
         with:
           tool: cargo-insta
       - name: "Run tests"
@@ -308,7 +313,7 @@ jobs:
 
   cargo-test-windows:
     name: "cargo test (windows)"
-    runs-on: github-windows-2025-x86_64-16
+    runs-on: depot-windows-2022-16
     needs: determine_changes
     if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
     timeout-minutes: 20
@@ -320,7 +325,7 @@ jobs:
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install cargo nextest"
-        uses: taiki-e/install-action@09dc018eee06ae1c9e0409786563f534210ceb83 # v2
+        uses: taiki-e/install-action@d12e869b89167df346dd0ff65da342d1fb1202fb # v2.53.2
         with:
           tool: cargo-nextest
       - name: "Run tests"
@@ -346,7 +351,7 @@ jobs:
       - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
       - name: "Install Rust toolchain"
         run: rustup target add wasm32-unknown-unknown
-      - uses: actions/setup-node@cdca7365b2dadb8aad0a33bc7601856ffabcc48e # v4.3.0
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 20
           cache: "npm"
@@ -358,9 +363,9 @@ jobs:
         run: |
           cd crates/ruff_wasm
           wasm-pack test --node
-      - name: "Test red_knot_wasm"
+      - name: "Test ty_wasm"
         run: |
-          cd crates/red_knot_wasm
+          cd crates/ty_wasm
           wasm-pack test --node
 
   cargo-build-release:
@@ -376,7 +381,7 @@ jobs:
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install mold"
-        uses: rui314/setup-mold@e16410e7f8d9e167b74ad5697a9089a35126eb50 # v1
+        uses: rui314/setup-mold@85c79d00377f0d32cdbae595a46de6f7c2fa6599 # v1
       - name: "Build"
         run: cargo build --release --locked
 
@@ -401,13 +406,13 @@ jobs:
           MSRV: ${{ steps.msrv.outputs.value }}
         run: rustup default "${MSRV}"
       - name: "Install mold"
-        uses: rui314/setup-mold@e16410e7f8d9e167b74ad5697a9089a35126eb50 # v1
+        uses: rui314/setup-mold@85c79d00377f0d32cdbae595a46de6f7c2fa6599 # v1
       - name: "Install cargo nextest"
-        uses: taiki-e/install-action@09dc018eee06ae1c9e0409786563f534210ceb83 # v2
+        uses: taiki-e/install-action@d12e869b89167df346dd0ff65da342d1fb1202fb # v2.53.2
         with:
           tool: cargo-nextest
       - name: "Install cargo insta"
-        uses: taiki-e/install-action@09dc018eee06ae1c9e0409786563f534210ceb83 # v2
+        uses: taiki-e/install-action@d12e869b89167df346dd0ff65da342d1fb1202fb # v2.53.2
         with:
           tool: cargo-insta
       - name: "Run tests"
@@ -433,7 +438,7 @@ jobs:
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install cargo-binstall"
-        uses: cargo-bins/cargo-binstall@63aaa5c1932cebabc34eceda9d92a70215dcead6 # v1.12.3
+        uses: cargo-bins/cargo-binstall@8aac5aa2bf0dfaa2863eccad9f43c68fe40e5ec8 # v1.14.1
         with:
           tool: cargo-fuzz@0.11.2
       - name: "Install cargo-fuzz"
@@ -455,8 +460,8 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
-      - uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e # v4.2.1
+      - uses: astral-sh/setup-uv@445689ea25e0de0a23313031f5fe577c74ae45a1 # v6.3.0
+      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         name: Download Ruff binary to test
         id: download-cached-binary
         with:
@@ -500,12 +505,10 @@ jobs:
       # Verify that adding a plugin or rule produces clean code.
       - run: ./scripts/add_rule.py --name DoTheThing --prefix F --code 999 --linter pyflakes
       - run: cargo check
-      - run: cargo fmt --all --check
       - run: |
           ./scripts/add_plugin.py test --url https://pypi.org/project/-test/0.1.0/ --prefix TST
           ./scripts/add_rule.py --name FirstRule --prefix TST --code 001 --linter test
       - run: cargo check
-      - run: cargo fmt --all --check
 
   ecosystem:
     name: "ecosystem"
@@ -521,11 +524,11 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
 
-      - uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e # v4.2.1
+      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         name: Download comparison Ruff binary
         id: ruff-target
         with:
@@ -632,6 +635,53 @@ jobs:
           name: ecosystem-result
           path: ecosystem-result
 
+  fuzz-ty:
+    name: "Fuzz for new ty panics"
+    runs-on: depot-ubuntu-22.04-16
+    needs:
+      - cargo-test-linux
+      - determine_changes
+    # Only runs on pull requests, since that is the only we way we can find the base version for comparison.
+    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && github.event_name == 'pull_request' && needs.determine_changes.outputs.ty == 'true' }}
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          persist-credentials: false
+      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
+        name: Download new ty binary
+        id: ty-new
+        with:
+          name: ty
+          path: target/debug
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: Download baseline ty binary
+        with:
+          name: ty
+          branch: ${{ github.event.pull_request.base.ref }}
+          workflow: "ci.yaml"
+          check_artifacts: true
+      - uses: astral-sh/setup-uv@445689ea25e0de0a23313031f5fe577c74ae45a1 # v6.3.0
+      - name: Fuzz
+        env:
+          FORCE_COLOR: 1
+          NEW_TY: ${{ steps.ty-new.outputs.download-path }}
+        run: |
+          # Make executable, since artifact download doesn't preserve this
+          chmod +x "${PWD}/ty" "${NEW_TY}/ty"
+
+          (
+            uvx \
+            --python="${PYTHON_VERSION}" \
+            --from=./python/py-fuzzer \
+            fuzz \
+            --test-executable="${NEW_TY}/ty" \
+            --baseline-executable="${PWD}/ty" \
+            --only-new-bugs \
+            --bin=ty \
+            0-500
+          )
+
   cargo-shear:
     name: "cargo shear"
     runs-on: ubuntu-latest
@@ -641,7 +691,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: cargo-bins/cargo-binstall@63aaa5c1932cebabc34eceda9d92a70215dcead6 # v1.12.3
+      - uses: cargo-bins/cargo-binstall@8aac5aa2bf0dfaa2863eccad9f43c68fe40e5ec8 # v1.14.1
       - run: cargo binstall --no-confirm cargo-shear
       - run: cargo shear
 
@@ -654,7 +704,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: x64
@@ -662,7 +712,7 @@ jobs:
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@35be3186fc8e037e329f06b68dcd807d83dcc6dc # v1.49.2
         with:
           args: --out dist
       - name: "Test wheel"
@@ -681,7 +731,11 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
+      - uses: astral-sh/setup-uv@445689ea25e0de0a23313031f5fe577c74ae45a1 # v6.3.0
+      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        with:
+          node-version: 22
       - name: "Cache pre-commit"
         uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with:
@@ -708,7 +762,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: "3.13"
       - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
@@ -720,7 +774,7 @@ jobs:
       - name: "Install Rust toolchain"
         run: rustup show
       - name: Install uv
-        uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
+        uses: astral-sh/setup-uv@445689ea25e0de0a23313031f5fe577c74ae45a1 # v6.3.0
       - name: "Install Insiders dependencies"
         if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
         run: uv pip install -r docs/requirements-insiders.txt --system
@@ -769,7 +823,7 @@ jobs:
       - determine_changes
     if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
     steps:
-      - uses: extractions/setup-just@dd310ad5a97d8e7b41793f8ef055398d51ad4de6 # v2
+      - uses: extractions/setup-just@e33e0265a09d6d736e2ee1e0eb685ef1de4669ff # v3.0.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -779,12 +833,12 @@ jobs:
           persist-credentials: false
           repository: "astral-sh/ruff-lsp"
 
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           # installation fails on 3.13 and newer
           python-version: "3.12"
 
-      - uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e # v4.2.1
+      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         name: Download development ruff binary
         id: ruff-target
         with:
@@ -821,7 +875,7 @@ jobs:
       - name: "Install Rust toolchain"
         run: rustup target add wasm32-unknown-unknown
       - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
-      - uses: actions/setup-node@cdca7365b2dadb8aad0a33bc7601856ffabcc48e # v4.3.0
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 22
           cache: "npm"
@@ -840,7 +894,7 @@ jobs:
         run: npm run fmt:check
         working-directory: playground
 
-  benchmarks:
+  benchmarks-instrumented:
     runs-on: ubuntu-24.04
     needs: determine_changes
     if: ${{ github.repository == 'astral-sh/ruff' && !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
@@ -852,17 +906,51 @@ jobs:
           persist-credentials: false
 
       - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: astral-sh/setup-uv@445689ea25e0de0a23313031f5fe577c74ae45a1 # v6.3.0
 
       - name: "Install Rust toolchain"
         run: rustup show
 
       - name: "Install codspeed"
-        uses: taiki-e/install-action@09dc018eee06ae1c9e0409786563f534210ceb83 # v2
+        uses: taiki-e/install-action@d12e869b89167df346dd0ff65da342d1fb1202fb # v2.53.2
         with:
           tool: cargo-codspeed
 
       - name: "Build benchmarks"
-        run: cargo codspeed build --features codspeed -p ruff_benchmark
+        run: cargo codspeed build --features "codspeed,instrumented" --no-default-features -p ruff_benchmark
+
+      - name: "Run benchmarks"
+        uses: CodSpeedHQ/action@0010eb0ca6e89b80c88e8edaaa07cfe5f3e6664d # v3.5.0
+        with:
+          run: cargo codspeed run
+          token: ${{ secrets.CODSPEED_TOKEN }}
+
+  benchmarks-walltime:
+    runs-on: codspeed-macro
+    needs: determine_changes
+    if: ${{ github.repository == 'astral-sh/ruff' && !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.ty == 'true' || github.ref == 'refs/heads/main') }}
+    timeout-minutes: 20
+    env:
+      TY_LOG: ruff_benchmark=debug
+    steps:
+      - name: "Checkout Branch"
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          persist-credentials: false
+
+      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: astral-sh/setup-uv@445689ea25e0de0a23313031f5fe577c74ae45a1 # v6.3.0
+
+      - name: "Install Rust toolchain"
+        run: rustup show
+
+      - name: "Install codspeed"
+        uses: taiki-e/install-action@d12e869b89167df346dd0ff65da342d1fb1202fb # v2.53.2
+        with:
+          tool: cargo-codspeed
+
+      - name: "Build benchmarks"
+        run: cargo codspeed build --features "codspeed,walltime" --no-default-features -p ruff_benchmark
 
       - name: "Run benchmarks"
         uses: CodSpeedHQ/action@0010eb0ca6e89b80c88e8edaaa07cfe5f3e6664d # v3.5.0

.github/workflows/daily_fuzz.yaml

@@ -34,11 +34,11 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
+      - uses: astral-sh/setup-uv@445689ea25e0de0a23313031f5fe577c74ae45a1 # v6.3.0
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install mold"
-        uses: rui314/setup-mold@e16410e7f8d9e167b74ad5697a9089a35126eb50 # v1
+        uses: rui314/setup-mold@85c79d00377f0d32cdbae595a46de6f7c2fa6599 # v1
       - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
       - name: Build ruff
         # A debug build means the script runs slower once it gets started,

.github/workflows/daily_property_tests.yaml

@@ -1,72 +0,0 @@
-name: Daily property test run
-
-on:
-  workflow_dispatch:
-  schedule:
-    - cron: "0 12 * * *"
-  pull_request:
-    paths:
-      - ".github/workflows/daily_property_tests.yaml"
-
-permissions:
-  contents: read
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
-  cancel-in-progress: true
-
-env:
-  CARGO_INCREMENTAL: 0
-  CARGO_NET_RETRY: 10
-  CARGO_TERM_COLOR: always
-  RUSTUP_MAX_RETRIES: 10
-  FORCE_COLOR: 1
-
-jobs:
-  property_tests:
-    name: Property tests
-    runs-on: ubuntu-latest
-    timeout-minutes: 20
-    # Don't run the cron job on forks:
-    if: ${{ github.repository == 'astral-sh/ruff' || github.event_name != 'schedule' }}
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          persist-credentials: false
-      - name: "Install Rust toolchain"
-        run: rustup show
-      - name: "Install mold"
-        uses: rui314/setup-mold@e16410e7f8d9e167b74ad5697a9089a35126eb50 # v1
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
-      - name: Build Red Knot
-        # A release build takes longer (2 min vs 1 min), but the property tests run much faster in release
-        # mode (1.5 min vs 14 min), so the overall time is shorter with a release build.
-        run: cargo build --locked --release --package red_knot_python_semantic --tests
-      - name: Run property tests
-        shell: bash
-        run: |
-          export QUICKCHECK_TESTS=100000
-          for _ in {1..5}; do
-            cargo test --locked --release --package red_knot_python_semantic -- --ignored list::property_tests
-            cargo test --locked --release --package red_knot_python_semantic -- --ignored types::property_tests::stable
-          done
-
-  create-issue-on-failure:
-    name: Create an issue if the daily property test run surfaced any bugs
-    runs-on: ubuntu-latest
-    needs: property_tests
-    if: ${{ github.repository == 'astral-sh/ruff' && always() && github.event_name == 'schedule' && needs.property_tests.result == 'failure' }}
-    permissions:
-      issues: write
-    steps:
-      - uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          script: |
-            await github.rest.issues.create({
-              owner: "astral-sh",
-              repo: "ruff",
-              title: `Daily property test run failed on ${new Date().toDateString()}`,
-              body: "Run listed here: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
-              labels: ["bug", "red-knot", "testing"],
-            })

.github/workflows/mypy_primer.yaml

@@ -5,12 +5,13 @@ permissions: {}
 on:
   pull_request:
     paths:
-      - "crates/red_knot*/**"
+      - "crates/ty*/**"
       - "crates/ruff_db"
       - "crates/ruff_python_ast"
       - "crates/ruff_python_parser"
       - ".github/workflows/mypy_primer.yaml"
       - ".github/workflows/mypy_primer_comment.yaml"
+      - "Cargo.lock"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number || github.sha }}
@@ -21,11 +22,12 @@ env:
   CARGO_NET_RETRY: 10
   CARGO_TERM_COLOR: always
   RUSTUP_MAX_RETRIES: 10
+  RUST_BACKTRACE: 1
 
 jobs:
   mypy_primer:
     name: Run mypy_primer
-    runs-on: depot-ubuntu-22.04-16
+    runs-on: depot-ubuntu-22.04-32
     timeout-minutes: 20
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
@@ -35,24 +37,25 @@ jobs:
           persist-credentials: false
 
       - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
+        uses: astral-sh/setup-uv@445689ea25e0de0a23313031f5fe577c74ae45a1 # v6.3.0
 
       - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
         with:
           workspaces: "ruff"
+
       - name: Install Rust toolchain
         run: rustup show
 
-      - name: Install mypy_primer
-        run: |
-          uv tool install "git+https://github.com/astral-sh/mypy_primer.git@add-red-knot-support-v5"
-
       - name: Run mypy_primer
         shell: bash
         run: |
           cd ruff
 
-          PRIMER_SELECTOR="$(paste -s -d'|' crates/red_knot_python_semantic/resources/primer/good.txt)"
+          echo "Enabling mypy primer specific configuration overloads (see .github/mypy-primer-ty.toml)"
+          mkdir -p ~/.config/ty
+          cp .github/mypy-primer-ty.toml ~/.config/ty/ty.toml
+
+          PRIMER_SELECTOR="$(paste -s -d'|' crates/ty_python_semantic/resources/primer/good.txt)"
 
           echo "new commit"
           git rev-list --format=%s --max-count=1 "$GITHUB_SHA"
@@ -66,9 +69,11 @@ jobs:
 
           echo "Project selector: $PRIMER_SELECTOR"
           # Allow the exit code to be 0 or 1, only fail for actual mypy_primer crashes/bugs
-          uvx mypy_primer \
+          uvx \
+            --from="git+https://github.com/hauntsaninja/mypy_primer@01a7ca325f674433c58e02416a867178d1571128" \
+            mypy_primer \
             --repo ruff \
-            --type-checker knot \
+            --type-checker ty \
             --old base_commit \
             --new "$GITHUB_SHA" \
             --project-selector "/($PRIMER_SELECTOR)\$" \

.github/workflows/mypy_primer_comment.yaml

@@ -79,7 +79,7 @@ jobs:
           echo 'EOF' >> "$GITHUB_OUTPUT"
 
       - name: Find existing comment
-        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3
+        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
         if: steps.generate-comment.outcome == 'success'
         id: find-comment
         with:

.github/workflows/pr-comment.yaml

@@ -70,7 +70,7 @@ jobs:
           echo 'EOF' >> "$GITHUB_OUTPUT"
 
       - name: Find existing comment
-        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3
+        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
         if: steps.generate-comment.outcome == 'success'
         id: find-comment
         with:

.github/workflows/publish-docs.yml

@@ -28,7 +28,7 @@ jobs:
           ref: ${{ inputs.ref }}
           persist-credentials: true
 
-      - uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: 3.12
 

.github/workflows/publish-playground.yml

@@ -29,7 +29,7 @@ jobs:
           persist-credentials: false
       - name: "Install Rust toolchain"
         run: rustup target add wasm32-unknown-unknown
-      - uses: actions/setup-node@cdca7365b2dadb8aad0a33bc7601856ffabcc48e # v4.3.0
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 22
           cache: "npm"

.github/workflows/publish-pypi.yml

@@ -22,8 +22,8 @@ jobs:
       id-token: write
     steps:
       - name: "Install uv"
-        uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
-      - uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e # v4.2.1
+        uses: astral-sh/setup-uv@445689ea25e0de0a23313031f5fe577c74ae45a1 # v6.3.0
+      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         with:
           pattern: wheels-*
           path: wheels

.github/workflows/publish-ty-playground.yml

@@ -1,5 +1,5 @@
-# Publish the Red Knot playground.
-name: "[Knot Playground] Release"
+# Publish the ty playground.
+name: "[ty Playground] Release"
 
 permissions: {}
 
@@ -7,12 +7,12 @@ on:
   push:
     branches: [main]
     paths:
-      - "crates/red_knot*/**"
+      - "crates/ty*/**"
       - "crates/ruff_db/**"
       - "crates/ruff_python_ast/**"
       - "crates/ruff_python_parser/**"
       - "playground/**"
-      - ".github/workflows/publish-knot-playground.yml"
+      - ".github/workflows/publish-ty-playground.yml"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}
@@ -35,7 +35,7 @@ jobs:
           persist-credentials: false
       - name: "Install Rust toolchain"
         run: rustup target add wasm32-unknown-unknown
-      - uses: actions/setup-node@cdca7365b2dadb8aad0a33bc7601856ffabcc48e # v4.3.0
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 22
       - uses: jetli/wasm-bindgen-action@20b33e20595891ab1a0ed73145d8a21fc96e7c29 # v0.2.0
@@ -45,8 +45,8 @@ jobs:
       - name: "Run TypeScript checks"
         run: npm run check
         working-directory: playground
-      - name: "Build Knot playground"
-        run: npm run build --workspace knot-playground
+      - name: "Build ty playground"
+        run: npm run build --workspace ty-playground
         working-directory: playground
       - name: "Deploy to Cloudflare Pages"
         if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
@@ -55,4 +55,4 @@ jobs:
           apiToken: ${{ secrets.CF_API_TOKEN }}
           accountId: ${{ secrets.CF_ACCOUNT_ID }}
           # `github.head_ref` is only set during pull requests and for manual runs or tags we use `main` to deploy to production
-          command: pages deploy playground/knot/dist --project-name=knot-playground --branch ${{ github.head_ref || 'main' }} --commit-hash ${GITHUB_SHA}
+          command: pages deploy playground/ty/dist --project-name=ty-playground --branch ${{ github.head_ref || 'main' }} --commit-hash ${GITHUB_SHA}

.github/workflows/publish-wasm.yml

@@ -45,7 +45,7 @@ jobs:
           jq '.name="@astral-sh/ruff-wasm-${{ matrix.target }}"' crates/ruff_wasm/pkg/package.json > /tmp/package.json
           mv /tmp/package.json crates/ruff_wasm/pkg
       - run: cp LICENSE crates/ruff_wasm/pkg # wasm-pack does not put the LICENSE file in the pkg
-      - uses: actions/setup-node@cdca7365b2dadb8aad0a33bc7601856ffabcc48e # v4.3.0
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 20
           registry-url: "https://registry.npmjs.org"

.github/workflows/release.yml

@@ -40,6 +40,7 @@ permissions:
 # If there's a prerelease-style suffix to the version, then the release(s)
 # will be marked as a prerelease.
 on:
+  pull_request:
   workflow_dispatch:
     inputs:
       tag:
@@ -68,7 +69,7 @@ jobs:
         # we specify bash to get pipefail; it guards against the `curl` command
         # failing. otherwise `sh` won't catch that `curl` returned non-0
         shell: bash
-        run: "curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/cargo-dist/releases/download/v0.28.4-prerelease.1/cargo-dist-installer.sh | sh"
+        run: "curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/cargo-dist/releases/download/v0.28.5-prerelease.3/cargo-dist-installer.sh | sh"
       - name: Cache dist
         uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02
         with:
@@ -128,14 +129,14 @@ jobs:
           persist-credentials: false
           submodules: recursive
       - name: Install cached dist
-        uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
         with:
           name: cargo-dist-cache
           path: ~/.cargo/bin/
       - run: chmod +x ~/.cargo/bin/dist
       # Get all the local artifacts for the global tasks to use (for e.g. checksums)
       - name: Fetch local artifacts
-        uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
         with:
           pattern: artifacts-*
           path: target/distrib/
@@ -179,14 +180,14 @@ jobs:
           persist-credentials: false
           submodules: recursive
       - name: Install cached dist
-        uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
         with:
           name: cargo-dist-cache
           path: ~/.cargo/bin/
       - run: chmod +x ~/.cargo/bin/dist
       # Fetch artifacts from scratch-storage
       - name: Fetch artifacts
-        uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
         with:
           pattern: artifacts-*
           path: target/distrib/
@@ -256,7 +257,7 @@ jobs:
           submodules: recursive
       # Create a GitHub Release while uploading all files to it
       - name: "Download GitHub Artifacts"
-        uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
         with:
           pattern: artifacts-*
           path: artifacts

.github/workflows/sync_typeshed.yaml

@@ -39,13 +39,13 @@ jobs:
       - name: Sync typeshed
         id: sync
         run: |
-          rm -rf ruff/crates/red_knot_vendored/vendor/typeshed
-          mkdir ruff/crates/red_knot_vendored/vendor/typeshed
-          cp typeshed/README.md ruff/crates/red_knot_vendored/vendor/typeshed
-          cp typeshed/LICENSE ruff/crates/red_knot_vendored/vendor/typeshed
-          cp -r typeshed/stdlib ruff/crates/red_knot_vendored/vendor/typeshed/stdlib
-          rm -rf ruff/crates/red_knot_vendored/vendor/typeshed/stdlib/@tests
-          git -C typeshed rev-parse HEAD > ruff/crates/red_knot_vendored/vendor/typeshed/source_commit.txt
+          rm -rf ruff/crates/ty_vendored/vendor/typeshed
+          mkdir ruff/crates/ty_vendored/vendor/typeshed
+          cp typeshed/README.md ruff/crates/ty_vendored/vendor/typeshed
+          cp typeshed/LICENSE ruff/crates/ty_vendored/vendor/typeshed
+          cp -r typeshed/stdlib ruff/crates/ty_vendored/vendor/typeshed/stdlib
+          rm -rf ruff/crates/ty_vendored/vendor/typeshed/stdlib/@tests
+          git -C typeshed rev-parse HEAD > ruff/crates/ty_vendored/vendor/typeshed/source_commit.txt
       - name: Commit the changes
         id: commit
         if: ${{ steps.sync.outcome == 'success' }}
@@ -60,7 +60,7 @@ jobs:
           cd ruff
           git push --force origin typeshedbot/sync-typeshed
           gh pr list --repo "$GITHUB_REPOSITORY" --head typeshedbot/sync-typeshed --json id --jq length | grep 1 && exit 0 # exit if there is existing pr
-          gh pr create --title "Sync vendored typeshed stubs" --body "Close and reopen this PR to trigger CI" --label "internal"
+          gh pr create --title "[ty] Sync vendored typeshed stubs" --body "Close and reopen this PR to trigger CI" --label "ty"
 
   create-issue-on-failure:
     name: Create an issue if the typeshed sync failed
@@ -79,5 +79,5 @@ jobs:
               repo: "ruff",
               title: `Automated typeshed sync failed on ${new Date().toDateString()}`,
               body: "Run listed here: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
-              labels: ["bug", "red-knot"],
+              labels: ["bug", "ty"],
             })

.github/workflows/ty-ecosystem-analyzer.yaml

@@ -0,0 +1,94 @@
+name: ty ecosystem-analyzer
+
+permissions: {}
+
+on:
+  pull_request:
+    types: [labeled]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
+
+env:
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_RETRY: 10
+  CARGO_TERM_COLOR: always
+  RUSTUP_MAX_RETRIES: 10
+  RUST_BACKTRACE: 1
+  REF_NAME: ${{ github.ref_name }}
+
+jobs:
+  ty-ecosystem-analyzer:
+    name: Compute diagnostic diff
+    runs-on: depot-ubuntu-22.04-32
+    timeout-minutes: 20
+    if: contains(github.event.label.name, 'ecosystem-analyzer')
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          path: ruff
+          fetch-depth: 0
+          persist-credentials: false
+
+      - name: Install the latest version of uv
+        uses: astral-sh/setup-uv@445689ea25e0de0a23313031f5fe577c74ae45a1 # v6.3.0
+
+      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+        with:
+          workspaces: "ruff"
+
+      - name: Install Rust toolchain
+        run: rustup show
+
+      - name: Compute diagnostic diff
+        shell: bash
+        run: |
+          cd ruff
+
+          echo "Enabling configuration overloads (see .github/mypy-primer-ty.toml)"
+          mkdir -p ~/.config/ty
+          cp .github/mypy-primer-ty.toml ~/.config/ty/ty.toml
+
+          echo "new commit"
+          git checkout -b new_commit "$GITHUB_SHA"
+          git rev-list --format=%s --max-count=1 new_commit
+          cp crates/ty_python_semantic/resources/primer/good.txt projects_new.txt
+
+          echo "old commit (merge base)"
+          MERGE_BASE="$(git merge-base "$GITHUB_SHA" "origin/$GITHUB_BASE_REF")"
+          git checkout -b old_commit "$MERGE_BASE"
+          git rev-list --format=%s --max-count=1 old_commit
+          cp crates/ty_python_semantic/resources/primer/good.txt projects_old.txt
+
+          cd ..
+
+          uv tool install "git+https://github.com/astral-sh/ecosystem-analyzer@9c34dc514ee9aef6735db1dfebb80f63acbc3440"
+
+          ecosystem-analyzer \
+            --repository ruff \
+            analyze \
+            --projects ruff/projects_old.txt \
+            --commit old_commit \
+            --output diagnostics_old.json
+
+          ecosystem-analyzer \
+            --repository ruff \
+            analyze \
+            --projects ruff/projects_new.txt \
+            --commit new_commit \
+            --output diagnostics_new.json
+
+          ecosystem-analyzer \
+            generate-diff \
+            diagnostics_old.json \
+            diagnostics_new.json \
+            --old-name "main (merge base)" \
+            --new-name "$REF_NAME" \
+            --output-html diff.html
+
+      - name: Upload HTML diff report
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: diff.html
+          path: diff.html

.markdownlint.yaml

@@ -29,3 +29,7 @@ MD024:
 #
 # Ref: https://github.com/astral-sh/ruff/pull/15011#issuecomment-2544790854
 MD046: false
+
+# Link text should be descriptive
+# Disallows link text like *here* which is annoying.
+MD059: false

.pre-commit-config.yaml

@@ -3,8 +3,10 @@ fail_fast: false
 exclude: |
   (?x)^(
     .github/workflows/release.yml|
-    crates/red_knot_vendored/vendor/.*|
-    crates/red_knot_project/resources/.*|
+    crates/ty_vendored/vendor/.*|
+    crates/ty_project/resources/.*|
+    crates/ty_python_semantic/resources/corpus/.*|
+    crates/ty/docs/(configuration|rules|cli).md|
     crates/ruff_benchmark/resources/.*|
     crates/ruff_linter/resources/.*|
     crates/ruff_linter/src/rules/.*/snapshots/.*|
@@ -42,7 +44,7 @@ repos:
           )$
 
   - repo: https://github.com/igorshubovych/markdownlint-cli
-    rev: v0.44.0
+    rev: v0.45.0
     hooks:
       - id: markdownlint-fix
         exclude: |
@@ -65,7 +67,7 @@ repos:
           - black==25.1.0
 
   - repo: https://github.com/crate-ci/typos
-    rev: v1.31.1
+    rev: v1.33.1
     hooks:
       - id: typos
 
@@ -79,7 +81,7 @@ repos:
         pass_filenames: false # This makes it a lot faster
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.11.6
+    rev: v0.11.13
     hooks:
       - id: ruff-format
       - id: ruff
@@ -97,7 +99,7 @@ repos:
   # zizmor detects security vulnerabilities in GitHub Actions workflows.
   # Additional configuration for the tool is found in `.github/zizmor.yml`
   - repo: https://github.com/woodruffw/zizmor-pre-commit
-    rev: v1.6.0
+    rev: v1.9.0
     hooks:
       - id: zizmor
 

BREAKING_CHANGES.md

@@ -1,5 +1,39 @@
 # Breaking Changes
 
+## 0.12.0
+
+- **Detection of more syntax errors**
+
+    Ruff now detects version-related syntax errors, such as the use of the `match`
+    statement on Python versions before 3.10, and syntax errors emitted by
+    CPython's compiler, such as irrefutable `match` patterns before the final
+    `case` arm.
+
+- **New default Python version handling for syntax errors**
+
+    Ruff will default to the _latest_ supported Python version (3.13) when
+    checking for the version-related syntax errors mentioned above to prevent
+    false positives in projects without a Python version configured. The default
+    in all other cases, like applying lint rules, is unchanged and remains at the
+    minimum supported Python version (3.9).
+
+- **Updated f-string formatting**
+
+    Ruff now formats multi-line f-strings with format specifiers to avoid adding a
+    line break after the format specifier. This addresses a change to the Python
+    grammar in version 3.13.4 that made such a line break a syntax error.
+
+- **`rust-toolchain.toml` is no longer included in source distributions**
+
+    The `rust-toolchain.toml` is used to specify a higher Rust version than Ruff's
+    minimum supported Rust version (MSRV) for development and building release
+    artifacts. However, when present in source distributions, it would also cause
+    downstream package maintainers to pull in the same Rust toolchain, even if
+    their available toolchain was MSRV-compatible.
+
+- **[`suspicious-xmle-tree-usage`](https://docs.astral.sh/ruff/rules/suspicious-xmle-tree-usage/)
+    (`S320`) has been removed**
+
 ## 0.11.0
 
 This is a follow-up to release 0.10.0. Because of a mistake in the release process, the `requires-python` inference changes were not included in that release. Ruff 0.11.0 now includes this change as well as the stabilization of the preview behavior for `PGH004`.

CODE_OF_CONDUCT.md

@@ -71,8 +71,7 @@ representative at an online or offline event.
 ## Enforcement
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported to the community leaders responsible for enforcement at
-<charlie.r.marsh@gmail.com>.
+reported to the community leaders responsible for enforcement at <hey@astral.sh>.
 All complaints will be reviewed and investigated promptly and fairly.
 
 All community leaders are obligated to respect the privacy and security of the

CONTRIBUTING.md

@@ -2,6 +2,11 @@
 
 Welcome! We're happy to have you here. Thank you in advance for your contribution to Ruff.
 
+> [!NOTE]
+>
+> This guide is for Ruff. If you're looking to contribute to ty, please see [the ty contributing
+> guide](https://github.com/astral-sh/ruff/blob/main/crates/ty/CONTRIBUTING.md).
+
 ## The Basics
 
 Ruff welcomes contributions in the form of pull requests.
@@ -310,6 +315,17 @@ even patch releases may contain [non-backwards-compatible changes](https://semve
     - Often labels will be missing from pull requests they will need to be manually organized into the proper section
     - Changes should be edited to be user-facing descriptions, avoiding internal details
 
+    Additionally, for minor releases:
+
+    - Move the existing contents of `CHANGELOG.md` to `changelogs/0.MINOR.x.md`,
+        where `MINOR` is the previous minor release (e.g. `11` when preparing
+        the 0.12.0 release)
+    - Reverse the entries to put the oldest version first (`0.MINOR.0` instead
+        of `0.MINOR.LATEST` as in the main changelog)
+        - Use the
+            [`reverse-changelog.py`](https://github.com/astral-sh/uv/blob/main/scripts/reverse-changelog.py)
+            script from the uv repo to do this automatically
+
 1. Highlight any breaking changes in `BREAKING_CHANGES.md`
 
 1. Run `cargo check`. This should update the lock file with new versions.
@@ -366,6 +382,15 @@ uvx --from ./python/ruff-ecosystem ruff-ecosystem format ruff "./target/debug/ru
 
 See the [ruff-ecosystem package](https://github.com/astral-sh/ruff/tree/main/python/ruff-ecosystem) for more details.
 
+## Upgrading Rust
+
+1. Change the `channel` in `./rust-toolchain.toml` to the new Rust version (`<latest>`)
+1. Change the `rust-version` in the `./Cargo.toml` to `<latest> - 2` (e.g. 1.84 if the latest is 1.86)
+1. Run `cargo clippy --fix --allow-dirty --allow-staged` to fix new clippy warnings
+1. Create and merge the PR
+1. Bump the Rust version in Ruff's conda forge recipe. See [this PR](https://github.com/conda-forge/ruff-feedstock/pull/266) for an example.
+1. Enjoy the new Rust version!
+
 ## Benchmarking and Profiling
 
 We have several ways of benchmarking and profiling Ruff:
@@ -397,7 +422,7 @@ cargo install hyperfine
 To benchmark the release build:
 
 ```shell
-cargo build --release && hyperfine --warmup 10 \
+cargo build --release --bin ruff && hyperfine --warmup 10 \
   "./target/release/ruff check ./crates/ruff_linter/resources/test/cpython/ --no-cache -e" \
   "./target/release/ruff check ./crates/ruff_linter/resources/test/cpython/ -e"
 
@@ -596,8 +621,7 @@ Then convert the recorded profile
 perf script -F +pid > /tmp/test.perf
 ```
 
-You can now view the converted file with [firefox profiler](https://profiler.firefox.com/), with a
-more in-depth guide [here](https://profiler.firefox.com/docs/#/./guide-perf-profiling)
+You can now view the converted file with [firefox profiler](https://profiler.firefox.com/). To learn more about Firefox profiler, read the [Firefox profiler profiling-guide](https://profiler.firefox.com/docs/#/./guide-perf-profiling).
 
 An alternative is to convert the perf data to `flamegraph.svg` using
 [flamegraph](https://github.com/flamegraph-rs/flamegraph) (`cargo install flamegraph`):

Cargo.toml

@@ -3,8 +3,9 @@ members = ["crates/*"]
 resolver = "2"
 
 [workspace.package]
-edition = "2021"
-rust-version = "1.84"
+# Please update rustfmt.toml when bumping the Rust edition
+edition = "2024"
+rust-version = "1.85"
 homepage = "https://docs.astral.sh/ruff"
 documentation = "https://docs.astral.sh/ruff"
 repository = "https://github.com/astral-sh/ruff"
@@ -23,6 +24,7 @@ ruff_index = { path = "crates/ruff_index" }
 ruff_linter = { path = "crates/ruff_linter" }
 ruff_macros = { path = "crates/ruff_macros" }
 ruff_notebook = { path = "crates/ruff_notebook" }
+ruff_options_metadata = { path = "crates/ruff_options_metadata" }
 ruff_python_ast = { path = "crates/ruff_python_ast" }
 ruff_python_codegen = { path = "crates/ruff_python_codegen" }
 ruff_python_formatter = { path = "crates/ruff_python_formatter" }
@@ -35,22 +37,24 @@ ruff_python_trivia = { path = "crates/ruff_python_trivia" }
 ruff_server = { path = "crates/ruff_server" }
 ruff_source_file = { path = "crates/ruff_source_file" }
 ruff_text_size = { path = "crates/ruff_text_size" }
-red_knot_vendored = { path = "crates/red_knot_vendored" }
 ruff_workspace = { path = "crates/ruff_workspace" }
 
-red_knot_ide = { path = "crates/red_knot_ide" }
-red_knot_project = { path = "crates/red_knot_project", default-features = false }
-red_knot_python_semantic = { path = "crates/red_knot_python_semantic" }
-red_knot_server = { path = "crates/red_knot_server" }
-red_knot_test = { path = "crates/red_knot_test" }
+ty = { path = "crates/ty" }
+ty_ide = { path = "crates/ty_ide" }
+ty_project = { path = "crates/ty_project", default-features = false }
+ty_python_semantic = { path = "crates/ty_python_semantic" }
+ty_server = { path = "crates/ty_server" }
+ty_test = { path = "crates/ty_test" }
+ty_vendored = { path = "crates/ty_vendored" }
 
 aho-corasick = { version = "1.1.3" }
 anstream = { version = "0.6.18" }
 anstyle = { version = "1.0.10" }
 anyhow = { version = "1.0.80" }
+arc-swap = { version = "1.7.1" }
 assert_fs = { version = "1.1.0" }
 argfile = { version = "0.2.0" }
-bincode = { version = "1.3.3" }
+bincode = { version = "2.0.0" }
 bitflags = { version = "2.5.0" }
 bstr = { version = "1.9.1" }
 cachedir = { version = "0.3.1" }
@@ -58,13 +62,14 @@ camino = { version = "1.1.7" }
 clap = { version = "4.5.3", features = ["derive"] }
 clap_complete_command = { version = "0.6.0" }
 clearscreen = { version = "4.0.0" }
+divan = { package = "codspeed-divan-compat", version = "2.10.1" }
 codspeed-criterion-compat = { version = "2.6.0", default-features = false }
 colored = { version = "3.0.0" }
 console_error_panic_hook = { version = "0.1.7" }
 console_log = { version = "1.0.0" }
 countme = { version = "3.0.1" }
 compact_str = "0.9.0"
-criterion = { version = "0.5.1", default-features = false }
+criterion = { version = "0.6.0", default-features = false }
 crossbeam = { version = "0.8.4" }
 dashmap = { version = "6.0.1" }
 dir-test = { version = "0.4.0" }
@@ -83,6 +88,7 @@ hashbrown = { version = "0.15.0", default-features = false, features = [
     "equivalent",
     "inline-more",
 ] }
+heck = "0.5.0"
 ignore = { version = "0.4.22" }
 imara-diff = { version = "0.1.5" }
 imperative = { version = "1.0.4" }
@@ -96,7 +102,7 @@ is-wsl = { version = "0.4.0" }
 itertools = { version = "0.14.0" }
 jiff = { version = "0.2.0" }
 js-sys = { version = "0.3.69" }
-jod-thread = { version = "0.1.2" }
+jod-thread = { version = "1.0.0" }
 libc = { version = "0.2.153" }
 libcst = { version = "1.1.0", default-features = false }
 log = { version = "0.4.17" }
@@ -122,9 +128,11 @@ quote = { version = "1.0.23" }
 rand = { version = "0.9.0" }
 rayon = { version = "1.10.0" }
 regex = { version = "1.10.2" }
+regex-automata = { version = "0.4.9" }
 rustc-hash = { version = "2.0.0" }
+rustc-stable-hash = { version = "0.1.2" }
 # When updating salsa, make sure to also update the revision in `fuzz/Cargo.toml`
-salsa = { git = "https://github.com/salsa-rs/salsa.git", rev = "87bf6b6c2d5f6479741271da73bd9d30c2580c26" }
+salsa = { git = "https://github.com/salsa-rs/salsa.git", rev = "09627e450566f894956710a3fd923dc80462ae6d" }
 schemars = { version = "0.8.16" }
 seahash = { version = "4.1.0" }
 serde = { version = "1.0.197", features = ["derive"] }
@@ -159,8 +167,9 @@ tracing-log = { version = "0.2.0" }
 tracing-subscriber = { version = "0.3.18", default-features = false, features = [
     "env-filter",
     "fmt",
+    "ansi",
+    "smallvec"
 ] }
-tracing-tree = { version = "0.4.0" }
 tryfn = { version = "0.2.1" }
 typed-arena = { version = "2.0.2" }
 unic-ucd-category = { version = "0.9" }
@@ -173,7 +182,6 @@ uuid = { version = "1.6.1", features = [
     "v4",
     "fast-rng",
     "macro-diagnostics",
-    "js",
 ] }
 walkdir = { version = "2.3.2" }
 wasm-bindgen = { version = "0.2.92" }
@@ -182,7 +190,7 @@ wild = { version = "2" }
 zip = { version = "0.6.6", default-features = false }
 
 [workspace.metadata.cargo-shear]
-ignored = ["getrandom"]
+ignored = ["getrandom", "ruff_options_metadata", "uuid"]
 
 
 [workspace.lints.rust]
@@ -210,6 +218,7 @@ similar_names = "allow"
 single_match_else = "allow"
 too_many_lines = "allow"
 needless_continue = "allow"       # An explicit continue can be more readable, especially if the alternative is an empty block.
+unnecessary_debug_formatting = "allow"  # too many instances, the display also doesn't quote the path which is often desired in logs where we use them the most often.
 # Without the hashes we run into a `rustfmt` bug in some snapshot tests, see #13250
 needless_raw_string_hashes = "allow"
 # Disallowed restriction lints
@@ -254,6 +263,9 @@ opt-level = 3
 [profile.dev.package.similar]
 opt-level = 3
 
+[profile.dev.package.salsa]
+opt-level = 3
+
 # Reduce complexity of a parser function that would trigger a locals limit in a wasm tool.
 # https://github.com/bytecodealliance/wasm-tools/blob/b5c3d98e40590512a3b12470ef358d5c7b983b15/crates/wasmparser/src/limits.rs#L29
 [profile.dev.package.ruff_python_parser]
@@ -268,73 +280,3 @@ debug = 1
 # The profile that 'cargo dist' will build with.
 [profile.dist]
 inherits = "release"
-
-# Config for 'dist'
-[workspace.metadata.dist]
-# The preferred dist version to use in CI (Cargo.toml SemVer syntax)
-cargo-dist-version = "0.28.4-prerelease.1"
-# CI backends to support
-ci = "github"
-# The installers to generate for each app
-installers = ["shell", "powershell"]
-# The archive format to use for windows builds (defaults .zip)
-windows-archive = ".zip"
-# The archive format to use for non-windows builds (defaults .tar.xz)
-unix-archive = ".tar.gz"
-# Target platforms to build apps for (Rust target-triple syntax)
-targets = [
-    "aarch64-apple-darwin",
-    "aarch64-pc-windows-msvc",
-    "aarch64-unknown-linux-gnu",
-    "aarch64-unknown-linux-musl",
-    "arm-unknown-linux-musleabihf",
-    "armv7-unknown-linux-gnueabihf",
-    "armv7-unknown-linux-musleabihf",
-    "i686-pc-windows-msvc",
-    "i686-unknown-linux-gnu",
-    "i686-unknown-linux-musl",
-    "powerpc64-unknown-linux-gnu",
-    "powerpc64le-unknown-linux-gnu",
-    "s390x-unknown-linux-gnu",
-    "x86_64-apple-darwin",
-    "x86_64-pc-windows-msvc",
-    "x86_64-unknown-linux-gnu",
-    "x86_64-unknown-linux-musl",
-]
-# Whether to auto-include files like READMEs, LICENSEs, and CHANGELOGs (default true)
-auto-includes = false
-# Whether dist should create a Github Release or use an existing draft
-create-release = true
-# Which actions to run on pull requests
-pr-run-mode = "skip"
-# Whether CI should trigger releases with dispatches instead of tag pushes
-dispatch-releases = true
-# Which phase dist should use to create the GitHub release
-github-release = "announce"
-# Whether CI should include auto-generated code to build local artifacts
-build-local-artifacts = false
-# Local artifacts jobs to run in CI
-local-artifacts-jobs = ["./build-binaries", "./build-docker"]
-# Publish jobs to run in CI
-publish-jobs = ["./publish-pypi", "./publish-wasm"]
-# Post-announce jobs to run in CI
-post-announce-jobs = [
-    "./notify-dependents",
-    "./publish-docs",
-    "./publish-playground",
-]
-# Custom permissions for GitHub Jobs
-github-custom-job-permissions = { "build-docker" = { packages = "write", contents = "read" }, "publish-wasm" = { contents = "read", id-token = "write", packages = "write" } }
-# Whether to install an updater program
-install-updater = false
-# Path that installers should place binaries in
-install-path = ["$XDG_BIN_HOME/", "$XDG_DATA_HOME/../bin", "~/.local/bin"]
-
-[workspace.metadata.dist.github-custom-runners]
-global = "depot-ubuntu-latest-4"
-
-[workspace.metadata.dist.github-action-commits]
-"actions/checkout" = "11bd71901bbe5b1630ceea73d27597364c9af683" # v4
-"actions/upload-artifact" = "ea165f8d65b6e75b540449e92b4886f43607fa02" # v4.6.2
-"actions/download-artifact" = "95815c38cf2ff2164869cbab79da8d1f422bc89e" # v4.2.1
-"actions/attest-build-provenance" = "c074443f1aee8d4aeeae555aebba3282517141b2" #v2.2.3

README.md

@@ -34,8 +34,7 @@ An extremely fast Python linter and code formatter, written in Rust.
 - 🔧 Fix support, for automatic error correction (e.g., automatically remove unused imports)
 - 📏 Over [800 built-in rules](https://docs.astral.sh/ruff/rules/), with native re-implementations
     of popular Flake8 plugins, like flake8-bugbear
-- ⌨️ First-party [editor integrations](https://docs.astral.sh/ruff/integrations/) for
-    [VS Code](https://github.com/astral-sh/ruff-vscode) and [more](https://docs.astral.sh/ruff/editors/setup)
+- ⌨️ First-party [editor integrations](https://docs.astral.sh/ruff/editors) for [VS Code](https://github.com/astral-sh/ruff-vscode) and [more](https://docs.astral.sh/ruff/editors/setup)
 - 🌎 Monorepo-friendly, with [hierarchical and cascading configuration](https://docs.astral.sh/ruff/configuration/#config-file-discovery)
 
 Ruff aims to be orders of magnitude faster than alternative tools while integrating more
@@ -149,8 +148,8 @@ curl -LsSf https://astral.sh/ruff/install.sh | sh
 powershell -c "irm https://astral.sh/ruff/install.ps1 | iex"
 
 # For a specific version.
-curl -LsSf https://astral.sh/ruff/0.11.6/install.sh | sh
-powershell -c "irm https://astral.sh/ruff/0.11.6/install.ps1 | iex"
+curl -LsSf https://astral.sh/ruff/0.12.0/install.sh | sh
+powershell -c "irm https://astral.sh/ruff/0.12.0/install.ps1 | iex"
 ```
 
 You can also install Ruff via [Homebrew](https://formulae.brew.sh/formula/ruff), [Conda](https://anaconda.org/conda-forge/ruff),
@@ -183,10 +182,10 @@ Ruff can also be used as a [pre-commit](https://pre-commit.com/) hook via [`ruff
 ```yaml
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.11.6
+  rev: v0.12.0
   hooks:
     # Run the linter.
-    - id: ruff
+    - id: ruff-check
       args: [ --fix ]
     # Run the formatter.
     - id: ruff-format
@@ -255,7 +254,7 @@ indent-width = 4
 target-version = "py39"
 
 [lint]
-# Enable Pyflakes (`F`) and a subset of the pycodestyle (`E`)  codes by default.
+# Enable Pyflakes (`F`) and a subset of the pycodestyle (`E`) codes by default.
 select = ["E4", "E7", "E9", "F"]
 ignore = []
 

_typos.toml

@@ -1,9 +1,13 @@
 [files]
 # https://github.com/crate-ci/typos/issues/868
 extend-exclude = [
-    "crates/red_knot_vendored/vendor/**/*",
+    "crates/ty_vendored/vendor/**/*",
     "**/resources/**/*",
     "**/snapshots/**/*",
+    # Completion tests tend to have a lot of incomplete
+    # words naturally. It's annoying to have to make all
+    # of them actually words. So just ignore typos here.
+    "crates/ty_ide/src/completion.rs",
 ]
 
 [default.extend-words]

changelogs/0.1.x.md

@@ -0,0 +1,885 @@
+# Changelog 0.1.x
+
+## 0.1.0
+
+This is the first release which uses the `CHANGELOG` file. See [GitHub Releases](https://github.com/astral-sh/ruff/releases) for prior changelog entries.
+
+Read Ruff's new [versioning policy](https://docs.astral.sh/ruff/versioning/).
+
+### Breaking changes
+
+- Unsafe fixes are no longer displayed or applied without opt-in ([#7769](https://github.com/astral-sh/ruff/pull/7769))
+- Drop formatting specific rules from the default set ([#7900](https://github.com/astral-sh/ruff/pull/7900))
+- The deprecated `format` setting has been removed ([#7984](https://github.com/astral-sh/ruff/pull/7984))
+    - The `format` setting cannot be used to configure the output format, use `output-format` instead
+    - The `RUFF_FORMAT` environment variable is ignored, use `RUFF_OUTPUT_FORMAT` instead
+    - The `--format` option has been removed from `ruff check`, use `--output-format` instead
+
+### Rule changes
+
+- Extend `reimplemented-starmap` (`FURB140`) to catch calls with a single and starred argument ([#7768](https://github.com/astral-sh/ruff/pull/7768))
+- Improve cases covered by `RUF015` ([#7848](https://github.com/astral-sh/ruff/pull/7848))
+- Update `SIM15` to allow `open` followed by `close` ([#7916](https://github.com/astral-sh/ruff/pull/7916))
+- Respect `msgspec.Struct` default-copy semantics in `RUF012` ([#7786](https://github.com/astral-sh/ruff/pull/7786))
+- Add `sqlalchemy` methods to \`flake8-boolean-trap\`\` exclusion list ([#7874](https://github.com/astral-sh/ruff/pull/7874))
+- Add fix for `PLR1714` ([#7910](https://github.com/astral-sh/ruff/pull/7910))
+- Add fix for `PIE804` ([#7884](https://github.com/astral-sh/ruff/pull/7884))
+- Add fix for `PLC0208` ([#7887](https://github.com/astral-sh/ruff/pull/7887))
+- Add fix for `PYI055` ([#7886](https://github.com/astral-sh/ruff/pull/7886))
+- Update `non-pep695-type-alias` to require `--unsafe-fixes` outside of stub files ([#7836](https://github.com/astral-sh/ruff/pull/7836))
+- Improve fix message for `UP018` ([#7913](https://github.com/astral-sh/ruff/pull/7913))
+- Update `PLW3201` to support `Enum` [sunder names](https://docs.python.org/3/library/enum.html#supported-sunder-names) ([#7987](https://github.com/astral-sh/ruff/pull/7987))
+
+### Preview features
+
+- Only show warnings for empty preview selectors when enabling rules ([#7842](https://github.com/astral-sh/ruff/pull/7842))
+- Add `unnecessary-key-check` to simplify `key in dct and dct[key]` to `dct.get(key)` ([#7895](https://github.com/astral-sh/ruff/pull/7895))
+- Add `assignment-in-assert` to prevent walrus expressions in assert statements ([#7856](https://github.com/astral-sh/ruff/pull/7856))
+- \[`refurb`\] Add `single-item-membership-test` (`FURB171`) ([#7815](https://github.com/astral-sh/ruff/pull/7815))
+- \[`pylint`\] Add `and-or-ternary` (`R1706`) ([#7811](https://github.com/astral-sh/ruff/pull/7811))
+
+_New rules are added in [preview](https://docs.astral.sh/ruff/preview/)._
+
+### Configuration
+
+- Add `unsafe-fixes` setting ([#7769](https://github.com/astral-sh/ruff/pull/7769))
+- Add `extend-safe-fixes` and `extend-unsafe-fixes` for promoting and demoting fixes ([#7841](https://github.com/astral-sh/ruff/pull/7841))
+
+### CLI
+
+- Added `--unsafe-fixes` option for opt-in to display and apply unsafe fixes ([#7769](https://github.com/astral-sh/ruff/pull/7769))
+- Fix use of deprecated `--format` option in warning ([#7837](https://github.com/astral-sh/ruff/pull/7837))
+- Show changed files when running under `--check` ([#7788](https://github.com/astral-sh/ruff/pull/7788))
+- Write summary messages to stderr when fixing via stdin instead of omitting them ([#7838](https://github.com/astral-sh/ruff/pull/7838))
+- Update fix summary message in `check --diff` to include unsafe fix hints ([#7790](https://github.com/astral-sh/ruff/pull/7790))
+- Add notebook `cell` field to JSON output format ([#7664](https://github.com/astral-sh/ruff/pull/7664))
+- Rename applicability levels to `Safe`, `Unsafe`, and `Display` ([#7843](https://github.com/astral-sh/ruff/pull/7843))
+
+### Bug fixes
+
+- Fix bug where f-strings were allowed in match pattern literal ([#7857](https://github.com/astral-sh/ruff/pull/7857))
+- Fix `SIM110` with a yield in the condition ([#7801](https://github.com/astral-sh/ruff/pull/7801))
+- Preserve trailing comments in `C414` fixes ([#7775](https://github.com/astral-sh/ruff/pull/7775))
+- Check sequence type before triggering `unnecessary-enumerate` `len` suggestion ([#7781](https://github.com/astral-sh/ruff/pull/7781))
+- Use correct start location for class/function clause header ([#7802](https://github.com/astral-sh/ruff/pull/7802))
+- Fix incorrect fixes for `SIM101` ([#7798](https://github.com/astral-sh/ruff/pull/7798))
+- Format comment before parameter default correctly ([#7870](https://github.com/astral-sh/ruff/pull/7870))
+- Fix `E251` false positive inside f-strings ([#7894](https://github.com/astral-sh/ruff/pull/7894))
+- Allow bindings to be created and referenced within annotations ([#7885](https://github.com/astral-sh/ruff/pull/7885))
+- Show per-cell diffs when analyzing notebooks over `stdin` ([#7789](https://github.com/astral-sh/ruff/pull/7789))
+- Avoid curly brace escape in f-string format spec ([#7780](https://github.com/astral-sh/ruff/pull/7780))
+- Fix lexing single-quoted f-string with multi-line format spec ([#7787](https://github.com/astral-sh/ruff/pull/7787))
+- Consider nursery rules to be in-preview for `ruff rule` ([#7812](https://github.com/astral-sh/ruff/pull/7812))
+- Report precise location for invalid conversion flag ([#7809](https://github.com/astral-sh/ruff/pull/7809))
+- Visit pattern match guard as a boolean test ([#7911](https://github.com/astral-sh/ruff/pull/7911))
+- Respect `--unfixable` in `ISC` rules ([#7917](https://github.com/astral-sh/ruff/pull/7917))
+- Fix edge case with `PIE804` ([#7922](https://github.com/astral-sh/ruff/pull/7922))
+- Show custom message in `PTH118` for `Path.joinpath` with starred arguments ([#7852](https://github.com/astral-sh/ruff/pull/7852))
+- Fix false negative in `outdated-version-block` when using greater than comparisons ([#7920](https://github.com/astral-sh/ruff/pull/7920))
+- Avoid converting f-strings within Django `gettext` calls ([#7898](https://github.com/astral-sh/ruff/pull/7898))
+- Fix false positive in `PLR6301` ([#7933](https://github.com/astral-sh/ruff/pull/7933))
+- Treat type aliases as typing-only expressions e.g. resolves false positive in `TCH004` ([#7968](https://github.com/astral-sh/ruff/pull/7968))
+- Resolve `cache-dir` relative to project root ([#7962](https://github.com/astral-sh/ruff/pull/7962))
+- Respect subscripted base classes in type-checking rules e.g. resolves false positive in `TCH003` ([#7954](https://github.com/astral-sh/ruff/pull/7954))
+- Fix JSON schema limit for `line-length` ([#7883](https://github.com/astral-sh/ruff/pull/7883))
+- Fix commented-out `coalesce` keyword ([#7876](https://github.com/astral-sh/ruff/pull/7876))
+
+### Documentation
+
+- Document `reimplemented-starmap` performance effects ([#7846](https://github.com/astral-sh/ruff/pull/7846))
+- Default to following the system dark/light mode ([#7888](https://github.com/astral-sh/ruff/pull/7888))
+- Add documentation for fixes ([#7901](https://github.com/astral-sh/ruff/pull/7901))
+- Fix typo in docs of `PLR6301` ([#7831](https://github.com/astral-sh/ruff/pull/7831))
+- Update `UP038` docs to note that it results in slower code ([#7872](https://github.com/astral-sh/ruff/pull/7872))
+- crlf -> cr-lf ([#7766](https://github.com/astral-sh/ruff/pull/7766))
+- Add an example of an unsafe fix ([#7924](https://github.com/astral-sh/ruff/pull/7924))
+- Fix documented examples for `unnecessary-subscript-reversal` ([#7774](https://github.com/astral-sh/ruff/pull/7774))
+- Correct error in tuple example in ruff formatter docs ([#7822](https://github.com/astral-sh/ruff/pull/7822))
+- Add versioning policy to documentation ([#7923](https://github.com/astral-sh/ruff/pull/7923))
+- Fix invalid code in `FURB177` example ([#7832](https://github.com/astral-sh/ruff/pull/7832))
+
+### Formatter
+
+- Less scary `ruff format` message ([#7867](https://github.com/astral-sh/ruff/pull/7867))
+- Remove spaces from import statements ([#7859](https://github.com/astral-sh/ruff/pull/7859))
+- Formatter quoting for f-strings with triple quotes ([#7826](https://github.com/astral-sh/ruff/pull/7826))
+- Update `ruff_python_formatter` generate.py comment ([#7850](https://github.com/astral-sh/ruff/pull/7850))
+- Document one-call chaining deviation ([#7767](https://github.com/astral-sh/ruff/pull/7767))
+- Allow f-string modifications in line-shrinking cases ([#7818](https://github.com/astral-sh/ruff/pull/7818))
+- Add trailing comment deviation to README ([#7827](https://github.com/astral-sh/ruff/pull/7827))
+- Add trailing zero between dot and exponential ([#7956](https://github.com/astral-sh/ruff/pull/7956))
+- Force parentheses for power operations in unary expressions ([#7955](https://github.com/astral-sh/ruff/pull/7955))
+
+### Playground
+
+- Fix playground `Quick Fix` action ([#7824](https://github.com/astral-sh/ruff/pull/7824))
+
+## 0.1.1
+
+### Rule changes
+
+- Add unsafe fix for `escape-sequence-in-docstring` (`D301`) ([#7970](https://github.com/astral-sh/ruff/pull/7970))
+
+### Configuration
+
+- Respect `#(deprecated)` attribute in configuration options ([#8035](https://github.com/astral-sh/ruff/pull/8035))
+- Add `[format|lint].exclude` options ([#8000](https://github.com/astral-sh/ruff/pull/8000))
+- Respect `tab-size` setting in formatter ([#8006](https://github.com/astral-sh/ruff/pull/8006))
+- Add `lint.preview` ([#8002](https://github.com/astral-sh/ruff/pull/8002))
+
+### Preview features
+
+- \[`pylint`\] Implement `literal-membership` (`PLR6201`) ([#7973](https://github.com/astral-sh/ruff/pull/7973))
+- \[`pylint`\] Implement `too-many-boolean-expressions` (`PLR0916`) ([#7975](https://github.com/astral-sh/ruff/pull/7975))
+- \[`pylint`\] Implement `misplaced-bare-raise` (`E0704`) ([#7961](https://github.com/astral-sh/ruff/pull/7961))
+- \[`pylint`\] Implement `global-at-module-level` (`W0604`) ([#8058](https://github.com/astral-sh/ruff/pull/8058))
+- \[`pylint`\] Implement `unspecified-encoding` (`PLW1514`) ([#7939](https://github.com/astral-sh/ruff/pull/7939))
+- Add fix for `triple-single-quotes` (`D300`) ([#7967](https://github.com/astral-sh/ruff/pull/7967))
+
+### Formatter
+
+- New code style badge for `ruff format` ([#7878](https://github.com/astral-sh/ruff/pull/7878))
+- Fix comments outside expression parentheses ([#7873](https://github.com/astral-sh/ruff/pull/7873))
+- Add `--target-version` to `ruff format` ([#8055](https://github.com/astral-sh/ruff/pull/8055))
+- Skip over parentheses when detecting `in` keyword ([#8054](https://github.com/astral-sh/ruff/pull/8054))
+- Add `--diff` option to `ruff format` ([#7937](https://github.com/astral-sh/ruff/pull/7937))
+- Insert newline after nested function or class statements ([#7946](https://github.com/astral-sh/ruff/pull/7946))
+- Use `pass` over ellipsis in non-function/class contexts ([#8049](https://github.com/astral-sh/ruff/pull/8049))
+
+### Bug fixes
+
+- Lazily evaluate all PEP 695 type alias values ([#8033](https://github.com/astral-sh/ruff/pull/8033))
+- Avoid failed assertion when showing fixes from stdin ([#8029](https://github.com/astral-sh/ruff/pull/8029))
+- Avoid flagging HTTP and HTTPS literals in urllib-open ([#8046](https://github.com/astral-sh/ruff/pull/8046))
+- Avoid flagging `bad-dunder-method-name` for `_` ([#8015](https://github.com/astral-sh/ruff/pull/8015))
+- Remove Python 2-only methods from `URLOpen` audit ([#8047](https://github.com/astral-sh/ruff/pull/8047))
+- Use set bracket replacement for `iteration-over-set` to preserve whitespace and comments ([#8001](https://github.com/astral-sh/ruff/pull/8001))
+
+### Documentation
+
+- Update tutorial to match revised Ruff defaults ([#8066](https://github.com/astral-sh/ruff/pull/8066))
+- Update rule `B005` docs ([#8028](https://github.com/astral-sh/ruff/pull/8028))
+- Update GitHub actions example in docs to use `--output-format` ([#8014](https://github.com/astral-sh/ruff/pull/8014))
+- Document `lint.preview` and `format.preview` ([#8032](https://github.com/astral-sh/ruff/pull/8032))
+- Clarify that new rules should be added to `RuleGroup::Preview`. ([#7989](https://github.com/astral-sh/ruff/pull/7989))
+
+## 0.1.2
+
+This release includes the Beta version of the Ruff formatter — an extremely fast, Black-compatible Python formatter.
+Try it today with `ruff format`! [Check out the blog post](https://astral.sh/blog/the-ruff-formatter) and [read the docs](https://docs.astral.sh/ruff/formatter/).
+
+### Preview features
+
+- \[`pylint`\] Implement `non-ascii-module-import` (`C2403`) ([#8056](https://github.com/astral-sh/ruff/pull/8056))
+- \[`pylint`\] implement `non-ascii-name` (`C2401`) ([#8038](https://github.com/astral-sh/ruff/pull/8038))
+- \[`pylint`\] Implement unnecessary-lambda (W0108) ([#7953](https://github.com/astral-sh/ruff/pull/7953))
+- \[`refurb`\] Implement `read-whole-file` (`FURB101`) ([#7682](https://github.com/astral-sh/ruff/pull/7682))
+- Add fix for `E223`, `E224`, and `E242` ([#8143](https://github.com/astral-sh/ruff/pull/8143))
+- Add fix for `E225`, `E226`, `E227`, and `E228` ([#8136](https://github.com/astral-sh/ruff/pull/8136))
+- Add fix for `E252` ([#8142](https://github.com/astral-sh/ruff/pull/8142))
+- Add fix for `E261` ([#8114](https://github.com/astral-sh/ruff/pull/8114))
+- Add fix for `E273` and `E274` ([#8144](https://github.com/astral-sh/ruff/pull/8144))
+- Add fix for `E275` ([#8133](https://github.com/astral-sh/ruff/pull/8133))
+- Update `SIM401` to catch ternary operations ([#7415](https://github.com/astral-sh/ruff/pull/7415))
+- Update `E721` to allow `is` and `is` not for direct type comparisons ([#7905](https://github.com/astral-sh/ruff/pull/7905))
+
+### Rule changes
+
+- Add `backports.strenum` to `deprecated-imports` ([#8113](https://github.com/astral-sh/ruff/pull/8113))
+- Update `SIM112` to ignore `https_proxy`, `http_proxy`, and `no_proxy` ([#8140](https://github.com/astral-sh/ruff/pull/8140))
+- Update fix for `literal-membership` (`PLR6201`) to be unsafe ([#8097](https://github.com/astral-sh/ruff/pull/8097))
+- Update fix for `mutable-argument-defaults` (`B006`) to be unsafe ([#8108](https://github.com/astral-sh/ruff/pull/8108))
+
+### Formatter
+
+- Change `line-ending` default to `auto` ([#8057](https://github.com/astral-sh/ruff/pull/8057))
+- Respect parenthesized generators in `has_own_parentheses` ([#8100](https://github.com/astral-sh/ruff/pull/8100))
+- Add caching to formatter ([#8089](https://github.com/astral-sh/ruff/pull/8089))
+- Remove `--line-length` option from `format` command ([#8131](https://github.com/astral-sh/ruff/pull/8131))
+- Add formatter to `line-length` documentation ([#8150](https://github.com/astral-sh/ruff/pull/8150))
+- Warn about incompatible formatter options ([#8088](https://github.com/astral-sh/ruff/pull/8088))
+- Fix range of unparenthesized tuple subject in match statement ([#8101](https://github.com/astral-sh/ruff/pull/8101))
+- Remove experimental formatter warning ([#8148](https://github.com/astral-sh/ruff/pull/8148))
+- Don't move type param opening parenthesis comment ([#8163](https://github.com/astral-sh/ruff/pull/8163))
+- Update versions in format benchmark script ([#8110](https://github.com/astral-sh/ruff/pull/8110))
+- Avoid loading files for cached format results ([#8134](https://github.com/astral-sh/ruff/pull/8134))
+
+### CLI
+
+- Show the `ruff format` command in help menus ([#8167](https://github.com/astral-sh/ruff/pull/8167))
+- Add `ruff version` command with long version display ([#8034](https://github.com/astral-sh/ruff/pull/8034))
+
+### Configuration
+
+- New `pycodestyle.max-line-length` option ([#8039](https://github.com/astral-sh/ruff/pull/8039))
+
+### Bug fixes
+
+- Detect `sys.version_info` slices in `outdated-version-block` ([#8112](https://github.com/astral-sh/ruff/pull/8112))
+- Avoid if-else simplification for `TYPE_CHECKING` blocks ([#8072](https://github.com/astral-sh/ruff/pull/8072))
+- Avoid false-positive print separator diagnostic with starred argument ([#8079](https://github.com/astral-sh/ruff/pull/8079))
+
+### Documentation
+
+- Fix message for `too-many-arguments` lint ([#8092](https://github.com/astral-sh/ruff/pull/8092))
+- Fix `extend-unsafe-fixes` and `extend-safe-fixes` example ([#8139](https://github.com/astral-sh/ruff/pull/8139))
+- Add links to `flake8-import-conventions` options ([#8115](https://github.com/astral-sh/ruff/pull/8115))
+- Rework the documentation to incorporate the Ruff formatter ([#7732](https://github.com/astral-sh/ruff/pull/7732))
+- Fix `Options` JSON schema description ([#8081](https://github.com/astral-sh/ruff/pull/8081))
+- Fix typo (`pytext` -> `pytest`) ([#8117](https://github.com/astral-sh/ruff/pull/8117))
+- Improve `magic-value-comparison` example in docs ([#8111](https://github.com/astral-sh/ruff/pull/8111))
+
+## 0.1.3
+
+This release includes a variety of improvements to the Ruff formatter, removing several known and
+unintentional deviations from Black.
+
+### Formatter
+
+- Avoid space around pow for `None`, `True` and `False` ([#8189](https://github.com/astral-sh/ruff/pull/8189))
+- Avoid sorting all paths in the format command ([#8181](https://github.com/astral-sh/ruff/pull/8181))
+- Insert necessary blank line between class and leading comments ([#8224](https://github.com/astral-sh/ruff/pull/8224))
+- Avoid introducing new parentheses in annotated assignments ([#8233](https://github.com/astral-sh/ruff/pull/8233))
+- Refine the warnings about incompatible linter options ([#8196](https://github.com/astral-sh/ruff/pull/8196))
+- Add test and basic implementation for formatter preview mode ([#8044](https://github.com/astral-sh/ruff/pull/8044))
+- Refine warning about incompatible `isort` settings ([#8192](https://github.com/astral-sh/ruff/pull/8192))
+- Only omit optional parentheses for starting or ending with parentheses ([#8238](https://github.com/astral-sh/ruff/pull/8238))
+- Use source type to determine parser mode for formatting ([#8205](https://github.com/astral-sh/ruff/pull/8205))
+- Don't warn about magic trailing comma when `isort.force-single-line` is true ([#8244](https://github.com/astral-sh/ruff/pull/8244))
+- Use `SourceKind::diff` for formatter ([#8240](https://github.com/astral-sh/ruff/pull/8240))
+- Fix `fmt:off` with trailing child comment ([#8234](https://github.com/astral-sh/ruff/pull/8234))
+- Formatter parentheses support for `IpyEscapeCommand` ([#8207](https://github.com/astral-sh/ruff/pull/8207))
+
+### Linter
+
+- \[`pylint`\] Add buffer methods to `bad-dunder-method-name` (`PLW3201`) exclusions ([#8190](https://github.com/astral-sh/ruff/pull/8190))
+- Match rule prefixes from `external` codes setting in `unused-noqa` ([#8177](https://github.com/astral-sh/ruff/pull/8177))
+- Use `line-length` setting for isort in lieu of `pycodestyle.max-line-length` ([#8235](https://github.com/astral-sh/ruff/pull/8235))
+- Update fix for `unnecessary-paren-on-raise-exception` to unsafe for unknown types ([#8231](https://github.com/astral-sh/ruff/pull/8231))
+- Correct quick fix message for `W605` ([#8255](https://github.com/astral-sh/ruff/pull/8255))
+
+### Documentation
+
+- Fix typo in max-doc-length documentation ([#8201](https://github.com/astral-sh/ruff/pull/8201))
+- Improve documentation around linter-formatter conflicts ([#8257](https://github.com/astral-sh/ruff/pull/8257))
+- Fix link to error suppression documentation in `unused-noqa` ([#8172](https://github.com/astral-sh/ruff/pull/8172))
+- Add `external` option to `unused-noqa` documentation ([#8171](https://github.com/astral-sh/ruff/pull/8171))
+- Add title attribute to icons ([#8060](https://github.com/astral-sh/ruff/pull/8060))
+- Clarify unsafe case in RSE102 ([#8256](https://github.com/astral-sh/ruff/pull/8256))
+- Fix skipping formatting examples ([#8210](https://github.com/astral-sh/ruff/pull/8210))
+- docs: fix name of `magic-trailing-comma` option in README ([#8200](https://github.com/astral-sh/ruff/pull/8200))
+- Add note about scope of rule changing in versioning policy ([#8169](https://github.com/astral-sh/ruff/pull/8169))
+- Document: Fix default lint rules ([#8218](https://github.com/astral-sh/ruff/pull/8218))
+- Fix a wrong setting in configuration.md ([#8186](https://github.com/astral-sh/ruff/pull/8186))
+- Fix misspelled TOML headers in the tutorial ([#8209](https://github.com/astral-sh/ruff/pull/8209))
+
+## 0.1.4
+
+### Preview features
+
+- \[`flake8-trio`\] Implement `timeout-without-await` (`TRIO001`) ([#8439](https://github.com/astral-sh/ruff/pull/8439))
+- \[`numpy`\] Implement NumPy 2.0 migration rule (`NPY200`) ([#7702](https://github.com/astral-sh/ruff/pull/7702))
+- \[`pylint`\] Implement `bad-open-mode` (`W1501`) ([#8294](https://github.com/astral-sh/ruff/pull/8294))
+- \[`pylint`\] Implement `import-outside-toplevel` (`C0415`) rule ([#5180](https://github.com/astral-sh/ruff/pull/5180))
+- \[`pylint`\] Implement `useless-with-lock` (`W2101`) ([#8321](https://github.com/astral-sh/ruff/pull/8321))
+- \[`pyupgrade`\] Implement `timeout-error-alias` (`UP041`) ([#8476](https://github.com/astral-sh/ruff/pull/8476))
+- \[`refurb`\] Implement `isinstance-type-none` (`FURB168`) ([#8308](https://github.com/astral-sh/ruff/pull/8308))
+- Detect confusable Unicode-to-Unicode units in `RUF001`, `RUF002`, and `RUF003` ([#4430](https://github.com/astral-sh/ruff/pull/4430))
+- Add newline after module docstrings in preview style ([#8283](https://github.com/astral-sh/ruff/pull/8283))
+
+### Formatter
+
+- Add a note on line-too-long to the formatter docs ([#8314](https://github.com/astral-sh/ruff/pull/8314))
+- Preserve trailing statement semicolons when using `fmt: skip` ([#8273](https://github.com/astral-sh/ruff/pull/8273))
+- Preserve trailing semicolons when using `fmt: off` ([#8275](https://github.com/astral-sh/ruff/pull/8275))
+- Avoid duplicating linter-formatter compatibility warnings ([#8292](https://github.com/astral-sh/ruff/pull/8292))
+- Avoid inserting a newline after function docstrings ([#8375](https://github.com/astral-sh/ruff/pull/8375))
+- Insert newline between docstring and following own line comment ([#8216](https://github.com/astral-sh/ruff/pull/8216))
+- Split tuples in return positions by comma first ([#8280](https://github.com/astral-sh/ruff/pull/8280))
+- Avoid treating byte strings as docstrings ([#8350](https://github.com/astral-sh/ruff/pull/8350))
+- Add `--line-length` option to `format` command ([#8363](https://github.com/astral-sh/ruff/pull/8363))
+- Avoid parenthesizing unsplittable because of comments ([#8431](https://github.com/astral-sh/ruff/pull/8431))
+
+### CLI
+
+- Add `--output-format` to `ruff rule` and `ruff linter` ([#8203](https://github.com/astral-sh/ruff/pull/8203))
+
+### Bug fixes
+
+- Respect `--force-exclude` in `lint.exclude` and `format.exclude` ([#8393](https://github.com/astral-sh/ruff/pull/8393))
+- Respect `--extend-per-file-ignores` on the CLI ([#8329](https://github.com/astral-sh/ruff/pull/8329))
+- Extend `bad-dunder-method-name` to permit `__index__` ([#8300](https://github.com/astral-sh/ruff/pull/8300))
+- Fix panic with 8 in octal escape ([#8356](https://github.com/astral-sh/ruff/pull/8356))
+- Avoid raising `D300` when both triple quote styles are present ([#8462](https://github.com/astral-sh/ruff/pull/8462))
+- Consider unterminated f-strings in `FStringRanges` ([#8154](https://github.com/astral-sh/ruff/pull/8154))
+- Avoid including literal `shell=True` for truthy, non-`True` diagnostics ([#8359](https://github.com/astral-sh/ruff/pull/8359))
+- Avoid triggering single-element test for starred expressions ([#8433](https://github.com/astral-sh/ruff/pull/8433))
+- Detect and ignore Jupyter automagics ([#8398](https://github.com/astral-sh/ruff/pull/8398))
+- Fix invalid E231 error with f-strings ([#8369](https://github.com/astral-sh/ruff/pull/8369))
+- Avoid triggering `NamedTuple` rewrite with starred annotation ([#8434](https://github.com/astral-sh/ruff/pull/8434))
+- Avoid un-setting bracket flag in logical lines ([#8380](https://github.com/astral-sh/ruff/pull/8380))
+- Place 'r' prefix before 'f' for raw format strings ([#8464](https://github.com/astral-sh/ruff/pull/8464))
+- Remove trailing periods from NumPy 2.0 code actions ([#8475](https://github.com/astral-sh/ruff/pull/8475))
+- Fix bug where `PLE1307` was raised when formatting `%c` with characters ([#8407](https://github.com/astral-sh/ruff/pull/8407))
+- Remove unicode flag from comparable ([#8440](https://github.com/astral-sh/ruff/pull/8440))
+- Improve B015 message ([#8295](https://github.com/astral-sh/ruff/pull/8295))
+- Use `fixedOverflowWidgets` for playground popover ([#8458](https://github.com/astral-sh/ruff/pull/8458))
+- Mark `byte_bounds` as a non-backwards-compatible NumPy 2.0 change ([#8474](https://github.com/astral-sh/ruff/pull/8474))
+
+### Internals
+
+- Add a dedicated cache directory per Ruff version ([#8333](https://github.com/astral-sh/ruff/pull/8333))
+- Allow selective caching for `--fix` and `--diff` ([#8316](https://github.com/astral-sh/ruff/pull/8316))
+- Improve performance of comment parsing ([#8193](https://github.com/astral-sh/ruff/pull/8193))
+- Improve performance of string parsing ([#8227](https://github.com/astral-sh/ruff/pull/8227))
+- Use a dedicated sort key for isort import sorting ([#7963](https://github.com/astral-sh/ruff/pull/7963))
+
+## 0.1.5
+
+### Preview features
+
+- \[`flake8-bandit`\] Implement `mako-templates` (`S702`) ([#8533](https://github.com/astral-sh/ruff/pull/8533))
+- \[`flake8-trio`\] Implement `TRIO105` ([#8490](https://github.com/astral-sh/ruff/pull/8490))
+- \[`flake8-trio`\] Implement `TRIO109` ([#8534](https://github.com/astral-sh/ruff/pull/8534))
+- \[`flake8-trio`\] Implement `TRIO110` ([#8537](https://github.com/astral-sh/ruff/pull/8537))
+- \[`flake8-trio`\] Implement `TRIO115` ([#8486](https://github.com/astral-sh/ruff/pull/8486))
+- \[`refurb`\] Implement `type-none-comparison` (`FURB169`) ([#8487](https://github.com/astral-sh/ruff/pull/8487))
+- Flag all comparisons against builtin types in `E721` ([#8491](https://github.com/astral-sh/ruff/pull/8491))
+- Make `SIM118` fix as safe when the expression is a known dictionary ([#8525](https://github.com/astral-sh/ruff/pull/8525))
+
+### Formatter
+
+- Fix multiline lambda expression statement formatting ([#8466](https://github.com/astral-sh/ruff/pull/8466))
+
+### CLI
+
+- Add hidden `--extension` to override inference of source type from file extension ([#8373](https://github.com/astral-sh/ruff/pull/8373))
+
+### Configuration
+
+- Account for selector specificity when merging `extend_unsafe_fixes` and `override extend_safe_fixes` ([#8444](https://github.com/astral-sh/ruff/pull/8444))
+- Add support for disabling cache with `RUFF_NO_CACHE` environment variable ([#8538](https://github.com/astral-sh/ruff/pull/8538))
+
+### Bug fixes
+
+- \[`E721`\] Flag comparisons to `memoryview` ([#8485](https://github.com/astral-sh/ruff/pull/8485))
+- Allow collapsed-ellipsis bodies in other statements ([#8499](https://github.com/astral-sh/ruff/pull/8499))
+- Avoid `D301` autofix for `u` prefixed strings ([#8495](https://github.com/astral-sh/ruff/pull/8495))
+- Only flag `flake8-trio` rules when `trio` import is present ([#8550](https://github.com/astral-sh/ruff/pull/8550))
+- Reject more syntactically invalid Python programs ([#8524](https://github.com/astral-sh/ruff/pull/8524))
+- Avoid raising `TRIO115` violations for `trio.sleep(...)` calls with non-number values ([#8532](https://github.com/astral-sh/ruff/pull/8532))
+- Fix `F841` false negative on assignment to multiple variables ([#8489](https://github.com/astral-sh/ruff/pull/8489))
+
+### Documentation
+
+- Fix link to isort `known-first-party` ([#8562](https://github.com/astral-sh/ruff/pull/8562))
+- Add notes on fix safety to a few rules ([#8500](https://github.com/astral-sh/ruff/pull/8500))
+- Add missing toml config tabs ([#8512](https://github.com/astral-sh/ruff/pull/8512))
+- Add instructions for configuration of Emacs ([#8488](https://github.com/astral-sh/ruff/pull/8488))
+- Improve detail link contrast in dark mode ([#8548](https://github.com/astral-sh/ruff/pull/8548))
+- Fix typo in example ([#8506](https://github.com/astral-sh/ruff/pull/8506))
+- Added tabs for configuration files in the documentation ([#8480](https://github.com/astral-sh/ruff/pull/8480))
+- Recommend `project.requires-python` over `target-version` ([#8513](https://github.com/astral-sh/ruff/pull/8513))
+- Add singleton escape hatch to `B008` documentation ([#8501](https://github.com/astral-sh/ruff/pull/8501))
+- Fix tab configuration docs ([#8502](https://github.com/astral-sh/ruff/pull/8502))
+
+## 0.1.6
+
+### Preview features
+
+- \[`flake8-boolean-trap`\] Extend `boolean-type-hint-positional-argument` (`FBT001`) to include booleans in unions ([#7501](https://github.com/astral-sh/ruff/pull/7501))
+- \[`flake8-pie`\] Extend `reimplemented-list-builtin` (`PIE807`) to `dict` reimplementations ([#8608](https://github.com/astral-sh/ruff/pull/8608))
+- \[`flake8-pie`\] Extend `unnecessary-pass` (`PIE790`) to include ellipses (`...`) ([#8641](https://github.com/astral-sh/ruff/pull/8641))
+- \[`flake8-pie`\] Implement fix for `unnecessary-spread` (`PIE800`) ([#8668](https://github.com/astral-sh/ruff/pull/8668))
+- \[`flake8-quotes`\] Implement `unnecessary-escaped-quote` (`Q004`) ([#8630](https://github.com/astral-sh/ruff/pull/8630))
+- \[`pycodestyle`\] Implement fix for `multiple-spaces-after-keyword` (`E271`) and `multiple-spaces-before-keyword` (`E272`) ([#8622](https://github.com/astral-sh/ruff/pull/8622))
+- \[`pycodestyle`\] Implement fix for `multiple-spaces-after-operator` (`E222`) and `multiple-spaces-before-operator` (`E221`) ([#8623](https://github.com/astral-sh/ruff/pull/8623))
+- \[`pyflakes`\] Extend `is-literal` (`F632`) to include comparisons against mutable initializers ([#8607](https://github.com/astral-sh/ruff/pull/8607))
+- \[`pylint`\] Implement `redefined-argument-from-local` (`PLR1704`) ([#8159](https://github.com/astral-sh/ruff/pull/8159))
+- \[`pylint`\] Implement fix for `unnecessary-lambda` (`PLW0108`) ([#8621](https://github.com/astral-sh/ruff/pull/8621))
+- \[`refurb`\] Implement `if-expr-min-max` (`FURB136`) ([#8664](https://github.com/astral-sh/ruff/pull/8664))
+- \[`refurb`\] Implement `math-constant` (`FURB152`) ([#8727](https://github.com/astral-sh/ruff/pull/8727))
+
+### Rule changes
+
+- \[`flake8-annotations`\] Add autotyping-like return type inference for annotation rules ([#8643](https://github.com/astral-sh/ruff/pull/8643))
+- \[`flake8-future-annotations`\] Implement fix for `future-required-type-annotation` (`FA102`) ([#8711](https://github.com/astral-sh/ruff/pull/8711))
+- \[`flake8-implicit-namespace-package`\] Avoid missing namespace violations in scripts with shebangs ([#8710](https://github.com/astral-sh/ruff/pull/8710))
+- \[`pydocstyle`\] Update `over-indentation` (`D208`) to preserve indentation offsets when fixing overindented lines ([#8699](https://github.com/astral-sh/ruff/pull/8699))
+- \[`pyupgrade`\] Refine `timeout-error-alias` (`UP041`) to remove false positives ([#8587](https://github.com/astral-sh/ruff/pull/8587))
+
+### Formatter
+
+- Fix instability in `await` formatting with fluent style ([#8676](https://github.com/astral-sh/ruff/pull/8676))
+- Compare formatted and unformatted ASTs during formatter tests ([#8624](https://github.com/astral-sh/ruff/pull/8624))
+- Preserve trailing semicolon for Notebooks ([#8590](https://github.com/astral-sh/ruff/pull/8590))
+
+### CLI
+
+- Improve debug printing for resolving origin of config settings ([#8729](https://github.com/astral-sh/ruff/pull/8729))
+- Write unchanged, excluded files to stdout when read via stdin ([#8596](https://github.com/astral-sh/ruff/pull/8596))
+
+### Configuration
+
+- \[`isort`\] Support disabling sections with `no-sections = true` ([#8657](https://github.com/astral-sh/ruff/pull/8657))
+- \[`pep8-naming`\] Support local and dynamic class- and static-method decorators ([#8592](https://github.com/astral-sh/ruff/pull/8592))
+- \[`pydocstyle`\] Allow overriding pydocstyle convention rules ([#8586](https://github.com/astral-sh/ruff/pull/8586))
+
+### Bug fixes
+
+- Avoid syntax error via importing `trio.lowlevel` ([#8730](https://github.com/astral-sh/ruff/pull/8730))
+- Omit unrolled augmented assignments in `PIE794` ([#8634](https://github.com/astral-sh/ruff/pull/8634))
+- Slice source code instead of generating it for `EM` fixes ([#7746](https://github.com/astral-sh/ruff/pull/7746))
+- Allow whitespace around colon in slices for `whitespace-before-punctuation` (`E203`) ([#8654](https://github.com/astral-sh/ruff/pull/8654))
+- Use function range for `no-self-use` ([#8637](https://github.com/astral-sh/ruff/pull/8637))
+- F-strings doesn't contain bytes literal for `PLW0129` ([#8675](https://github.com/astral-sh/ruff/pull/8675))
+- Improve detection of `TYPE_CHECKING` blocks imported from `typing_extensions` or `_typeshed` ([#8429](https://github.com/astral-sh/ruff/pull/8429))
+- Treat display as a builtin in IPython ([#8707](https://github.com/astral-sh/ruff/pull/8707))
+- Avoid `FURB113` autofix if comments are present ([#8494](https://github.com/astral-sh/ruff/pull/8494))
+- Consider the new f-string tokens for `flake8-commas` ([#8582](https://github.com/astral-sh/ruff/pull/8582))
+- Remove erroneous bad-dunder-name reference ([#8742](https://github.com/astral-sh/ruff/pull/8742))
+- Avoid recommending Self usages in metaclasses ([#8639](https://github.com/astral-sh/ruff/pull/8639))
+- Detect runtime-evaluated base classes defined in the current file ([#8572](https://github.com/astral-sh/ruff/pull/8572))
+- Avoid inserting trailing commas within f-strings ([#8574](https://github.com/astral-sh/ruff/pull/8574))
+- Remove incorrect deprecation label for stdout and stderr ([#8743](https://github.com/astral-sh/ruff/pull/8743))
+- Fix unnecessary parentheses in UP007 fix ([#8610](https://github.com/astral-sh/ruff/pull/8610))
+- Remove repeated and erroneous scoped settings headers in docs ([#8670](https://github.com/astral-sh/ruff/pull/8670))
+- Trim trailing empty strings when converting to f-strings ([#8712](https://github.com/astral-sh/ruff/pull/8712))
+- Fix ordering for `force-sort-within-sections` ([#8665](https://github.com/astral-sh/ruff/pull/8665))
+- Run unicode prefix rule over tokens ([#8709](https://github.com/astral-sh/ruff/pull/8709))
+- Update UP032 to unescape curly braces in literal parts of converted strings ([#8697](https://github.com/astral-sh/ruff/pull/8697))
+- List all ipython builtins ([#8719](https://github.com/astral-sh/ruff/pull/8719))
+
+### Documentation
+
+- Document conventions in the FAQ ([#8638](https://github.com/astral-sh/ruff/pull/8638))
+- Redirect from rule codes to rule pages in docs ([#8636](https://github.com/astral-sh/ruff/pull/8636))
+- Fix permalink to convention setting ([#8575](https://github.com/astral-sh/ruff/pull/8575))
+
+## 0.1.7
+
+### Preview features
+
+- Implement multiline dictionary and list hugging for preview style ([#8293](https://github.com/astral-sh/ruff/pull/8293))
+- Implement the `fix_power_op_line_length` preview style ([#8947](https://github.com/astral-sh/ruff/pull/8947))
+- Use Python version to determine typing rewrite safety ([#8919](https://github.com/astral-sh/ruff/pull/8919))
+- \[`flake8-annotations`\] Enable auto-return-type involving `Optional` and `Union` annotations ([#8885](https://github.com/astral-sh/ruff/pull/8885))
+- \[`flake8-bandit`\] Implement `django-raw-sql` (`S611`) ([#8651](https://github.com/astral-sh/ruff/pull/8651))
+- \[`flake8-bandit`\] Implement `tarfile-unsafe-members` (`S202`) ([#8829](https://github.com/astral-sh/ruff/pull/8829))
+- \[`flake8-pyi`\] Implement fix for `unnecessary-literal-union` (`PYI030`) ([#7934](https://github.com/astral-sh/ruff/pull/7934))
+- \[`flake8-simplify`\] Extend `dict-get-with-none-default` (`SIM910`) to non-literals ([#8762](https://github.com/astral-sh/ruff/pull/8762))
+- \[`pylint`\] - add `unnecessary-list-index-lookup` (`PLR1736`) + autofix ([#7999](https://github.com/astral-sh/ruff/pull/7999))
+- \[`pylint`\] - implement R0202 and R0203 with autofixes ([#8335](https://github.com/astral-sh/ruff/pull/8335))
+- \[`pylint`\] Implement `repeated-keyword` (`PLe1132`) ([#8706](https://github.com/astral-sh/ruff/pull/8706))
+- \[`pylint`\] Implement `too-many-positional` (`PLR0917`) ([#8995](https://github.com/astral-sh/ruff/pull/8995))
+- \[`pylint`\] Implement `unnecessary-dict-index-lookup` (`PLR1733`) ([#8036](https://github.com/astral-sh/ruff/pull/8036))
+- \[`refurb`\] Implement `redundant-log-base` (`FURB163`) ([#8842](https://github.com/astral-sh/ruff/pull/8842))
+
+### Rule changes
+
+- \[`flake8-boolean-trap`\] Allow booleans in `@override` methods ([#8882](https://github.com/astral-sh/ruff/pull/8882))
+- \[`flake8-bugbear`\] Avoid `B015`,`B018` for last expression in a cell ([#8815](https://github.com/astral-sh/ruff/pull/8815))
+- \[`flake8-pie`\] Allow ellipses for enum values in stub files ([#8825](https://github.com/astral-sh/ruff/pull/8825))
+- \[`flake8-pyi`\] Check PEP 695 type aliases for `snake-case-type-alias` and `t-suffixed-type-alias` ([#8966](https://github.com/astral-sh/ruff/pull/8966))
+- \[`flake8-pyi`\] Check for kwarg and vararg `NoReturn` type annotations ([#8948](https://github.com/astral-sh/ruff/pull/8948))
+- \[`flake8-simplify`\] Omit select context managers from `SIM117` ([#8801](https://github.com/astral-sh/ruff/pull/8801))
+- \[`pep8-naming`\] Allow Django model loads in `non-lowercase-variable-in-function` (`N806`) ([#8917](https://github.com/astral-sh/ruff/pull/8917))
+- \[`pycodestyle`\] Avoid `E703` for last expression in a cell ([#8821](https://github.com/astral-sh/ruff/pull/8821))
+- \[`pycodestyle`\] Update `E402` to work at cell level for notebooks ([#8872](https://github.com/astral-sh/ruff/pull/8872))
+- \[`pydocstyle`\] Avoid `D100` for Jupyter Notebooks ([#8816](https://github.com/astral-sh/ruff/pull/8816))
+- \[`pylint`\] Implement fix for `unspecified-encoding` (`PLW1514`) ([#8928](https://github.com/astral-sh/ruff/pull/8928))
+
+### Formatter
+
+- Avoid unstable formatting in ellipsis-only body with trailing comment ([#8984](https://github.com/astral-sh/ruff/pull/8984))
+- Inline trailing comments for type alias similar to assignments ([#8941](https://github.com/astral-sh/ruff/pull/8941))
+- Insert trailing comma when function breaks with single argument ([#8921](https://github.com/astral-sh/ruff/pull/8921))
+
+### CLI
+
+- Update `ruff check` and `ruff format` to default to the current directory ([#8791](https://github.com/astral-sh/ruff/pull/8791))
+- Stop at the first resolved parent configuration ([#8864](https://github.com/astral-sh/ruff/pull/8864))
+
+### Configuration
+
+- \[`pylint`\] Default `max-positional-args` to `max-args` ([#8998](https://github.com/astral-sh/ruff/pull/8998))
+- \[`pylint`\] Add `allow-dunder-method-names` setting for `bad-dunder-method-name` (`PLW3201`) ([#8812](https://github.com/astral-sh/ruff/pull/8812))
+- \[`isort`\] Add support for `from-first` setting ([#8663](https://github.com/astral-sh/ruff/pull/8663))
+- \[`isort`\] Add support for `length-sort` settings ([#8841](https://github.com/astral-sh/ruff/pull/8841))
+
+### Bug fixes
+
+- Add support for `@functools.singledispatch` ([#8934](https://github.com/astral-sh/ruff/pull/8934))
+- Avoid off-by-one error in stripping noqa following multi-byte char ([#8979](https://github.com/astral-sh/ruff/pull/8979))
+- Avoid off-by-one error in with-item named expressions ([#8915](https://github.com/astral-sh/ruff/pull/8915))
+- Avoid syntax error via invalid ur string prefix ([#8971](https://github.com/astral-sh/ruff/pull/8971))
+- Avoid underflow in `get_model` matching ([#8965](https://github.com/astral-sh/ruff/pull/8965))
+- Avoid unnecessary index diagnostics when value is modified ([#8970](https://github.com/astral-sh/ruff/pull/8970))
+- Convert over-indentation rule to use number of characters ([#8983](https://github.com/astral-sh/ruff/pull/8983))
+- Detect implicit returns in auto-return-types ([#8952](https://github.com/astral-sh/ruff/pull/8952))
+- Fix start >= end error in over-indentation ([#8982](https://github.com/astral-sh/ruff/pull/8982))
+- Ignore `@overload` and `@override` methods for too-many-arguments checks ([#8954](https://github.com/astral-sh/ruff/pull/8954))
+- Lexer start of line is false only for `Mode::Expression` ([#8880](https://github.com/astral-sh/ruff/pull/8880))
+- Mark `pydantic_settings.BaseSettings` as having default copy semantics ([#8793](https://github.com/astral-sh/ruff/pull/8793))
+- Respect dictionary unpacking in `NamedTuple` assignments ([#8810](https://github.com/astral-sh/ruff/pull/8810))
+- Respect local subclasses in `flake8-type-checking` ([#8768](https://github.com/astral-sh/ruff/pull/8768))
+- Support type alias statements in simple statement positions ([#8916](https://github.com/astral-sh/ruff/pull/8916))
+- \[`flake8-annotations`\] Avoid filtering out un-representable types in return annotation ([#8881](https://github.com/astral-sh/ruff/pull/8881))
+- \[`flake8-pie`\] Retain extra ellipses in protocols and abstract methods ([#8769](https://github.com/astral-sh/ruff/pull/8769))
+- \[`flake8-pyi`\] Respect local enum subclasses in `simple-defaults` (`PYI052`) ([#8767](https://github.com/astral-sh/ruff/pull/8767))
+- \[`flake8-trio`\] Use correct range for `TRIO115` fix ([#8933](https://github.com/astral-sh/ruff/pull/8933))
+- \[`flake8-trio`\] Use full arguments range for zero-sleep-call ([#8936](https://github.com/astral-sh/ruff/pull/8936))
+- \[`isort`\] fix: mark `__main__` as first-party import ([#8805](https://github.com/astral-sh/ruff/pull/8805))
+- \[`pep8-naming`\] Avoid `N806` errors for type alias statements ([#8785](https://github.com/astral-sh/ruff/pull/8785))
+- \[`perflint`\] Avoid `PERF101` if there's an append in loop body ([#8809](https://github.com/astral-sh/ruff/pull/8809))
+- \[`pycodestyle`\] Allow space-before-colon after end-of-slice ([#8838](https://github.com/astral-sh/ruff/pull/8838))
+- \[`pydocstyle`\] Avoid non-character breaks in `over-indentation` (`D208`) ([#8866](https://github.com/astral-sh/ruff/pull/8866))
+- \[`pydocstyle`\] Ignore underlines when determining docstring logical lines ([#8929](https://github.com/astral-sh/ruff/pull/8929))
+- \[`pylint`\] Extend `self-assigning-variable` to multi-target assignments ([#8839](https://github.com/astral-sh/ruff/pull/8839))
+- \[`tryceratops`\] Avoid repeated triggers in nested `tryceratops` diagnostics ([#8772](https://github.com/astral-sh/ruff/pull/8772))
+
+### Documentation
+
+- Add advice for fixing RUF008 when mutability is not desired ([#8853](https://github.com/astral-sh/ruff/pull/8853))
+- Added the command to run ruff using pkgx to the installation.md ([#8955](https://github.com/astral-sh/ruff/pull/8955))
+- Document fix safety for flake8-comprehensions and some pyupgrade rules ([#8918](https://github.com/astral-sh/ruff/pull/8918))
+- Fix doc formatting for zero-sleep-call ([#8937](https://github.com/astral-sh/ruff/pull/8937))
+- Remove duplicate imports from os-stat documentation ([#8930](https://github.com/astral-sh/ruff/pull/8930))
+- Replace generated reference to MkDocs ([#8806](https://github.com/astral-sh/ruff/pull/8806))
+- Update Arch Linux package URL in installation.md ([#8802](https://github.com/astral-sh/ruff/pull/8802))
+- \[`flake8-pyi`\] Fix error in `t-suffixed-type-alias` (`PYI043`) example ([#8963](https://github.com/astral-sh/ruff/pull/8963))
+- \[`flake8-pyi`\] Improve motivation for `custom-type-var-return-type` (`PYI019`) ([#8766](https://github.com/astral-sh/ruff/pull/8766))
+
+## 0.1.8
+
+This release includes opt-in support for formatting Python snippets within
+docstrings via the `docstring-code-format` setting.
+[Check out the blog post](https://astral.sh/blog/ruff-v0.1.8) for more details!
+
+### Preview features
+
+- Add `"preserve"` quote-style to mimic Black's skip-string-normalization ([#8822](https://github.com/astral-sh/ruff/pull/8822))
+- Implement `prefer_splitting_right_hand_side_of_assignments` preview style ([#8943](https://github.com/astral-sh/ruff/pull/8943))
+- \[`pycodestyle`\] Add fix for `unexpected-spaces-around-keyword-parameter-equals` ([#9072](https://github.com/astral-sh/ruff/pull/9072))
+- \[`pycodestyle`\] Add fix for comment-related whitespace rules ([#9075](https://github.com/astral-sh/ruff/pull/9075))
+- \[`pycodestyle`\] Allow `sys.path` modifications between imports ([#9047](https://github.com/astral-sh/ruff/pull/9047))
+- \[`refurb`\] Implement `hashlib-digest-hex` (`FURB181`) ([#9077](https://github.com/astral-sh/ruff/pull/9077))
+
+### Rule changes
+
+- Allow `flake8-type-checking` rules to automatically quote runtime-evaluated references ([#6001](https://github.com/astral-sh/ruff/pull/6001))
+- Allow transparent cell magics in Jupyter Notebooks ([#8911](https://github.com/astral-sh/ruff/pull/8911))
+- \[`flake8-annotations`\] Avoid `ANN2xx` fixes for abstract methods with empty bodies ([#9034](https://github.com/astral-sh/ruff/pull/9034))
+- \[`flake8-self`\] Ignore underscore references in type annotations ([#9036](https://github.com/astral-sh/ruff/pull/9036))
+- \[`pep8-naming`\] Allow class names when `apps.get_model` is a non-string ([#9065](https://github.com/astral-sh/ruff/pull/9065))
+- \[`pycodestyle`\] Allow `matplotlib.use` calls to intersperse imports ([#9094](https://github.com/astral-sh/ruff/pull/9094))
+- \[`pyflakes`\] Support fixing unused assignments in tuples by renaming variables (`F841`) ([#9107](https://github.com/astral-sh/ruff/pull/9107))
+- \[`pylint`\] Add fix for `subprocess-run-without-check` (`PLW1510`) ([#6708](https://github.com/astral-sh/ruff/pull/6708))
+
+### Formatter
+
+- Add `docstring-code-format` knob to enable docstring snippet formatting ([#8854](https://github.com/astral-sh/ruff/pull/8854))
+- Use double quotes for all docstrings, including single-quoted docstrings ([#9020](https://github.com/astral-sh/ruff/pull/9020))
+- Implement "dynamic" line width mode for docstring code formatting ([#9098](https://github.com/astral-sh/ruff/pull/9098))
+- Support reformatting Markdown code blocks ([#9030](https://github.com/astral-sh/ruff/pull/9030))
+- add support for formatting reStructuredText code snippets ([#9003](https://github.com/astral-sh/ruff/pull/9003))
+- Avoid trailing comma for single-argument with positional separator ([#9076](https://github.com/astral-sh/ruff/pull/9076))
+- Fix handling of trailing target comment ([#9051](https://github.com/astral-sh/ruff/pull/9051))
+
+### CLI
+
+- Hide unsafe fix suggestions when explicitly disabled ([#9095](https://github.com/astral-sh/ruff/pull/9095))
+- Add SARIF support to `--output-format` ([#9078](https://github.com/astral-sh/ruff/pull/9078))
+
+### Bug fixes
+
+- Apply unnecessary index rule prior to enumerate rewrite ([#9012](https://github.com/astral-sh/ruff/pull/9012))
+- \[`flake8-err-msg`\] Allow `EM` fixes even if `msg` variable is defined ([#9059](https://github.com/astral-sh/ruff/pull/9059))
+- \[`flake8-pie`\] Prevent keyword arguments duplication ([#8450](https://github.com/astral-sh/ruff/pull/8450))
+- \[`flake8-pie`\] Respect trailing comma in `unnecessary-dict-kwargs` (`PIE804`) ([#9015](https://github.com/astral-sh/ruff/pull/9015))
+- \[`flake8-raise`\] Avoid removing parentheses on ctypes.WinError ([#9027](https://github.com/astral-sh/ruff/pull/9027))
+- \[`isort`\] Avoid invalid combination of `force-sort-within-types` and `lines-between-types` ([#9041](https://github.com/astral-sh/ruff/pull/9041))
+- \[`isort`\] Ensure that from-style imports are always ordered first in `__future__` ([#9039](https://github.com/astral-sh/ruff/pull/9039))
+- \[`pycodestyle`\] Allow tab indentation before keyword ([#9099](https://github.com/astral-sh/ruff/pull/9099))
+- \[`pylint`\] Ignore `@overrides` and `@overloads` for `too-many-positional` ([#9000](https://github.com/astral-sh/ruff/pull/9000))
+- \[`pyupgrade`\] Enable `printf-string-formatting` fix with comments on right-hand side ([#9037](https://github.com/astral-sh/ruff/pull/9037))
+- \[`refurb`\] Make `math-constant` (`FURB152`) rule more targeted ([#9054](https://github.com/astral-sh/ruff/pull/9054))
+- \[`refurb`\] Support floating-point base in `redundant-log-base` (`FURB163`) ([#9100](https://github.com/astral-sh/ruff/pull/9100))
+- \[`ruff`\] Detect `unused-asyncio-dangling-task` (`RUF006`) on unused assignments ([#9060](https://github.com/astral-sh/ruff/pull/9060))
+
+## 0.1.9
+
+### Breaking changes
+
+- Add site-packages to default exclusions ([#9188](https://github.com/astral-sh/ruff/pull/9188))
+
+### Preview features
+
+- Fix: Avoid parenthesizing subscript targets and values ([#9209](https://github.com/astral-sh/ruff/pull/9209))
+- \[`pylint`\] Implement `too-many-locals` (`PLR0914`) ([#9163](https://github.com/astral-sh/ruff/pull/9163))
+- Implement `reimplemented_operator` (FURB118) ([#9171](https://github.com/astral-sh/ruff/pull/9171))
+- Add a rule to detect string members in runtime-evaluated unions ([#9143](https://github.com/astral-sh/ruff/pull/9143))
+- Implement `no_blank_line_before_class_docstring` preview style ([#9154](https://github.com/astral-sh/ruff/pull/9154))
+
+### Rule changes
+
+- `CONSTANT_CASE` variables are improperly flagged for yoda violation (`SIM300`) ([#9164](https://github.com/astral-sh/ruff/pull/9164))
+- \[`flake8-pyi`\] Cover ParamSpecs and TypeVarTuples (`PYI018`) ([#9198](https://github.com/astral-sh/ruff/pull/9198))
+- \[`flake8-bugbear`\] Add fix for `zip-without-explicit-strict` (`B905`) ([#9176](https://github.com/astral-sh/ruff/pull/9176))
+- Add fix to automatically remove `print` and `pprint` statements (`T201`, `T203`) ([#9208](https://github.com/astral-sh/ruff/pull/9208))
+- Prefer `Never` to `NoReturn` in auto-typing in Python >= 3.11 (`ANN201`) ([#9213](https://github.com/astral-sh/ruff/pull/9213))
+
+### Formatter
+
+- `can_omit_optional_parentheses`: Exit early for unparenthesized expressions ([#9125](https://github.com/astral-sh/ruff/pull/9125))
+- Fix `dynamic` mode with doctests so that it doesn't exceed configured line width ([#9129](https://github.com/astral-sh/ruff/pull/9129))
+- Fix `can_omit_optional_parentheses` for expressions with a right most fstring ([#9124](https://github.com/astral-sh/ruff/pull/9124))
+- Add `target_version` to formatter options ([#9220](https://github.com/astral-sh/ruff/pull/9220))
+
+### CLI
+
+- Update `ruff format --check` to display message for already formatted files ([#9153](https://github.com/astral-sh/ruff/pull/9153))
+
+### Bug fixes
+
+- Reverse order of arguments for `operator.contains` ([#9192](https://github.com/astral-sh/ruff/pull/9192))
+- Iterate over lambdas in deferred type annotations ([#9175](https://github.com/astral-sh/ruff/pull/9175))
+- Fix panic in `D208` with multibyte indent ([#9147](https://github.com/astral-sh/ruff/pull/9147))
+- Add support for `NoReturn` in auto-return-typing ([#9206](https://github.com/astral-sh/ruff/pull/9206))
+- Allow removal of `typing` from `exempt-modules` ([#9214](https://github.com/astral-sh/ruff/pull/9214))
+- Avoid `mutable-class-default` violations for Pydantic subclasses ([#9187](https://github.com/astral-sh/ruff/pull/9187))
+- Fix dropped union expressions for piped non-types in `PYI055` autofix ([#9161](https://github.com/astral-sh/ruff/pull/9161))
+- Enable annotation quoting for multi-line expressions ([#9142](https://github.com/astral-sh/ruff/pull/9142))
+- Deduplicate edits when quoting annotations ([#9140](https://github.com/astral-sh/ruff/pull/9140))
+- Prevent invalid utf8 indexing in cell magic detection ([#9146](https://github.com/astral-sh/ruff/pull/9146))
+- Avoid nested quotations in auto-quoting fix ([#9168](https://github.com/astral-sh/ruff/pull/9168))
+- Add base-class inheritance detection to flake8-django rules ([#9151](https://github.com/astral-sh/ruff/pull/9151))
+- Avoid `asyncio-dangling-task` violations on shadowed bindings ([#9215](https://github.com/astral-sh/ruff/pull/9215))
+
+### Documentation
+
+- Fix blog post URL in changelog ([#9119](https://github.com/astral-sh/ruff/pull/9119))
+- Add error suppression hint for multi-line strings ([#9205](https://github.com/astral-sh/ruff/pull/9205))
+- Fix typo in SemanticModel.parent_expression docstring ([#9167](https://github.com/astral-sh/ruff/pull/9167))
+- Document link between import sorting and formatter ([#9117](https://github.com/astral-sh/ruff/pull/9117))
+
+## 0.1.10
+
+### Preview features
+
+- Improve `dummy_implementations` preview style formatting ([#9240](https://github.com/astral-sh/ruff/pull/9240))
+- Normalise Hex and unicode escape sequences in strings ([#9280](https://github.com/astral-sh/ruff/pull/9280))
+- Parenthesize long type annotations in annotated assignments ([#9210](https://github.com/astral-sh/ruff/pull/9210))
+- Parenthesize multi-context managers in `with` statements ([#9222](https://github.com/astral-sh/ruff/pull/9222))
+- \[`flake8-pyi`\] Implement `generator-return-from-iter-method` (`PYI058`) ([#9313](https://github.com/astral-sh/ruff/pull/9313))
+- \[`pylint`\] Implement `empty-comment` (`PLR2044`) ([#9174](https://github.com/astral-sh/ruff/pull/9174))
+- \[`refurb`\] Implement `bit-count` (`FURB161`) ([#9265](https://github.com/astral-sh/ruff/pull/9265))
+- \[`ruff`\] Add `never-union` rule to detect redundant `typing.NoReturn` and `typing.Never` ([#9217](https://github.com/astral-sh/ruff/pull/9217))
+
+### CLI
+
+- Add paths to TOML parse errors ([#9358](https://github.com/astral-sh/ruff/pull/9358))
+- Add row and column numbers to formatter parse errors ([#9321](https://github.com/astral-sh/ruff/pull/9321))
+- Improve responsiveness when invoked via Python ([#9315](https://github.com/astral-sh/ruff/pull/9315))
+- Short rule messages should not end with a period ([#9345](https://github.com/astral-sh/ruff/pull/9345))
+
+### Configuration
+
+- Respect runtime-required decorators on functions ([#9317](https://github.com/astral-sh/ruff/pull/9317))
+
+### Bug fixes
+
+- Avoid `asyncio-dangling-task` for nonlocal and global bindings ([#9263](https://github.com/astral-sh/ruff/pull/9263))
+- Escape trailing placeholders in rule documentation ([#9301](https://github.com/astral-sh/ruff/pull/9301))
+- Fix continuation detection following multi-line strings ([#9332](https://github.com/astral-sh/ruff/pull/9332))
+- Fix scoping for generators in named expressions in classes ([#9248](https://github.com/astral-sh/ruff/pull/9248))
+- Port from obsolete wsl crate to is-wsl ([#9356](https://github.com/astral-sh/ruff/pull/9356))
+- Remove special pre-visit for module docstrings ([#9261](https://github.com/astral-sh/ruff/pull/9261))
+- Respect `__str__` definitions from super classes ([#9338](https://github.com/astral-sh/ruff/pull/9338))
+- Respect `unused-noqa` via `per-file-ignores` ([#9300](https://github.com/astral-sh/ruff/pull/9300))
+- Respect attribute chains when resolving builtin call paths ([#9309](https://github.com/astral-sh/ruff/pull/9309))
+- Treat all `typing_extensions` members as typing aliases ([#9335](https://github.com/astral-sh/ruff/pull/9335))
+- Use `Display` for formatter parse errors ([#9316](https://github.com/astral-sh/ruff/pull/9316))
+- Wrap subscripted dicts in parens for f-string conversion ([#9238](https://github.com/astral-sh/ruff/pull/9238))
+- \[`flake8-annotations`\] Avoid adding return types to stub methods ([#9277](https://github.com/astral-sh/ruff/pull/9277))
+- \[`flake8-annotations`\] Respect mixed `return` and `raise` cases in return-type analysis ([#9310](https://github.com/astral-sh/ruff/pull/9310))
+- \[`flake8-bandit`\] Don't report violations when `SafeLoader` is imported from `yaml.loader` (`S506`) ([#9299](https://github.com/astral-sh/ruff/pull/9299))
+- \[`pylint`\] Avoid panic when comment is preceded by Unicode ([#9331](https://github.com/astral-sh/ruff/pull/9331))
+- \[`pylint`\] Change `PLR0917` error message to match other `PLR09XX` messages ([#9308](https://github.com/astral-sh/ruff/pull/9308))
+- \[`refurb`\] Avoid false positives for `math-constant` (`FURB152`) ([#9290](https://github.com/astral-sh/ruff/pull/9290))
+
+### Documentation
+
+- Expand target name for better rule documentation ([#9302](https://github.com/astral-sh/ruff/pull/9302))
+- Fix typos found by codespell ([#9346](https://github.com/astral-sh/ruff/pull/9346))
+- \[`perflint`\] Document `PERF102` fix un-safety ([#9351](https://github.com/astral-sh/ruff/pull/9351))
+- \[`pyupgrade`\] Document `UP007` fix un-safety ([#9306](https://github.com/astral-sh/ruff/pull/9306))
+
+## 0.1.11
+
+### Preview features
+
+- \[`pylint`\] Implement `super-without-brackets` (`W0245`) ([#9257](https://github.com/astral-sh/ruff/pull/9257))
+
+### Bug fixes
+
+- Check path string properly in `python -m ruff` invocations ([#9367](https://github.com/astral-sh/ruff/pull/9367))
+
+### Documentation
+
+- Tweak `relative-imports` message ([#9365](https://github.com/astral-sh/ruff/pull/9365))
+- Add fix safety note for `yield-in-for-loop` ([#9364](https://github.com/astral-sh/ruff/pull/9364))
+
+## 0.1.12
+
+### Preview features
+
+- Formatter: Hug multiline-strings in preview style ([#9243](https://github.com/astral-sh/ruff/pull/9243))
+- \[`flake8-bandit`\] Add `ssl-with-no-version` (`S504`) ([#9384](https://github.com/astral-sh/ruff/pull/9384))
+- \[`flake8-bandit`\] Implement `ssl-insecure-version` (`S502`) ([#9390](https://github.com/astral-sh/ruff/pull/9390))
+- \[`flake8-bandit`\] Implement `ssl-with-bad-defaults` (`S503`) ([#9391](https://github.com/astral-sh/ruff/pull/9391))
+- \[`flake8-bandit`\] Implement suspicious import rules (`S4XX`) ([#8831](https://github.com/astral-sh/ruff/pull/8831))
+- \[`flake8-simplify`\] Implement `zip-dict-keys-and-values` (`SIM911`) ([#9460](https://github.com/astral-sh/ruff/pull/9460))
+- \[`pyflakes`\] Add a fix for `redefined-while-unused` (`F811`) ([#9419](https://github.com/astral-sh/ruff/pull/9419))
+- \[`pylint`\] Implement `unnecessary-dunder-call` (`C2801`) ([#9166](https://github.com/astral-sh/ruff/pull/9166))
+- \[`ruff`\] Add `parenthesize-chained-operators` (`RUF021`) to enforce parentheses in `a or b and c` ([#9440](https://github.com/astral-sh/ruff/pull/9440))
+
+### Rule changes
+
+- \[`flake8-boolean-trap`\] Allow Boolean positional arguments in setters ([#9429](https://github.com/astral-sh/ruff/pull/9429))
+- \[`flake8-builtins`\] Restrict `builtin-attribute-shadowing` (`A003`) to actual shadowed references ([#9462](https://github.com/astral-sh/ruff/pull/9462))
+- \[`flake8-pyi`\] Add fix for `generator-return-from-iter-method` (`PYI058`) ([#9355](https://github.com/astral-sh/ruff/pull/9355))
+- \[`pyflakes`\] Don't flag `redefined-while-unused` (`F811`) in `if` branches ([#9418](https://github.com/astral-sh/ruff/pull/9418))
+- \[`pyupgrade`\] Add some additional Python 3.12 typing members to `deprecated-import` ([#9445](https://github.com/astral-sh/ruff/pull/9445))
+- \[`ruff`\] Add fix for `parenthesize-chained-operators` (`RUF021`) ([#9449](https://github.com/astral-sh/ruff/pull/9449))
+- \[`ruff`\] Include subscripts and attributes in static key rule (`RUF011`) ([#9416](https://github.com/astral-sh/ruff/pull/9416))
+- \[`ruff`\] Support variable keys in static dictionary key rule (`RUF011`) ([#9411](https://github.com/astral-sh/ruff/pull/9411))
+
+### Formatter
+
+- Generate deterministic IDs when formatting notebooks ([#9359](https://github.com/astral-sh/ruff/pull/9359))
+- Allow `# fmt: skip` with interspersed same-line comments ([#9395](https://github.com/astral-sh/ruff/pull/9395))
+- Parenthesize breaking named expressions in match guards ([#9396](https://github.com/astral-sh/ruff/pull/9396))
+
+### Bug fixes
+
+- Add cell indexes to all diagnostics ([#9387](https://github.com/astral-sh/ruff/pull/9387))
+- Avoid infinite loop in constant vs. `None` comparisons ([#9376](https://github.com/astral-sh/ruff/pull/9376))
+- Handle raises with implicit alternate branches ([#9377](https://github.com/astral-sh/ruff/pull/9377))
+- Ignore trailing quotes for unclosed l-brace errors ([#9388](https://github.com/astral-sh/ruff/pull/9388))
+- Respect multi-segment submodule imports when resolving qualified names ([#9382](https://github.com/astral-sh/ruff/pull/9382))
+- Use `DisplayParseError` for stdin parser errors ([#9409](https://github.com/astral-sh/ruff/pull/9409))
+- Use `comment_ranges` for isort directive extraction ([#9414](https://github.com/astral-sh/ruff/pull/9414))
+- Use transformed source code for diagnostic locations ([#9408](https://github.com/astral-sh/ruff/pull/9408))
+- \[`flake8-pyi`\] Exclude `warnings.deprecated` and `typing_extensions.deprecated` arguments ([#9423](https://github.com/astral-sh/ruff/pull/9423))
+- \[`flake8-pyi`\] Fix false negative for `unused-private-protocol` (`PYI046`) with unused generic protocols ([#9405](https://github.com/astral-sh/ruff/pull/9405))
+- \[`pydocstyle`\] Disambiguate argument descriptors from section headers ([#9427](https://github.com/astral-sh/ruff/pull/9427))
+- \[`pylint`\] Homogenize `PLR0914` message to match other `PLR09XX` rules ([#9399](https://github.com/astral-sh/ruff/pull/9399))
+- \[`ruff`\] Allow `Hashable = None` in type annotations (`RUF013`) ([#9442](https://github.com/astral-sh/ruff/pull/9442))
+
+### Documentation
+
+- Fix admonition hyperlink colouring ([#9385](https://github.com/astral-sh/ruff/pull/9385))
+- Add missing preview link ([#9386](https://github.com/astral-sh/ruff/pull/9386))
+
+## 0.1.13
+
+### Bug fixes
+
+- Include base pyproject when initializing cache settings ([#9480](https://github.com/astral-sh/ruff/pull/9480))
+- \[`flake8-simplify`\] Account for possibly-empty f-string values in truthiness logic ([#9484](https://github.com/astral-sh/ruff/pull/9484))
+- \[`pylint`\] Add the missing period in `unnecessary-dunder-call` ([#9485](https://github.com/astral-sh/ruff/pull/9485))
+- \[`pylint`\] Fix `__aenter__` message in `unnecessary-dunder-call` ([#9492](https://github.com/astral-sh/ruff/pull/9492))
+
+## 0.1.14
+
+### Preview features
+
+- \[`flake8-bugbear`\] Add fix for `duplicate-value` (`B033`) ([#9510](https://github.com/astral-sh/ruff/pull/9510))
+- \[`flake8-simplify`\] Implement `enumerate-for-loop` (`SIM113`) ([#7777](https://github.com/astral-sh/ruff/pull/7777))
+- \[`pygrep_hooks`\] Add fix for `deprecated-log-warn` (`PGH002`) ([#9519](https://github.com/astral-sh/ruff/pull/9519))
+- \[`pylint`\] Implement `import-private-name` (`C2701`) ([#5920](https://github.com/astral-sh/ruff/pull/5920))
+- \[`refurb`\] Implement `regex-flag-alias` with fix (`FURB167`) ([#9516](https://github.com/astral-sh/ruff/pull/9516))
+- \[`ruff`\] Add rule and fix to sort contents of `__all__` (`RUF022`) ([#9474](https://github.com/astral-sh/ruff/pull/9474))
+- \[`tryceratops`\] Add fix for `error-instead-of-exception` (`TRY400`) ([#9520](https://github.com/astral-sh/ruff/pull/9520))
+
+### Rule changes
+
+- \[`flake8-pyi`\] Fix `PYI047` false negatives on PEP-695 type aliases ([#9566](https://github.com/astral-sh/ruff/pull/9566))
+- \[`flake8-pyi`\] Fix `PYI049` false negatives on call-based `TypedDict`s ([#9567](https://github.com/astral-sh/ruff/pull/9567))
+- \[`pylint`\] Exclude `self` and `cls` when counting method arguments (`PLR0917`) ([#9563](https://github.com/astral-sh/ruff/pull/9563))
+
+### CLI
+
+- `--show-settings` displays active settings in a far more readable format ([#9464](https://github.com/astral-sh/ruff/pull/9464))
+- Add `--extension` support to the formatter ([#9483](https://github.com/astral-sh/ruff/pull/9483))
+
+### Configuration
+
+- Ignore preview status for fixable and unfixable selectors ([#9538](https://github.com/astral-sh/ruff/pull/9538))
+- \[`pycodestyle`\] Use the configured tab size when expanding indents ([#9506](https://github.com/astral-sh/ruff/pull/9506))
+
+### Bug fixes
+
+- Recursively visit deferred AST nodes ([#9541](https://github.com/astral-sh/ruff/pull/9541))
+- Visit deferred lambdas before type definitions ([#9540](https://github.com/astral-sh/ruff/pull/9540))
+- \[`flake8-simplify`\] Avoid some more `enumerate-for-loop` false positives (`SIM113`) ([#9515](https://github.com/astral-sh/ruff/pull/9515))
+- \[`pandas-vet`\] Limit inplace diagnostics to methods that accept inplace ([#9495](https://github.com/astral-sh/ruff/pull/9495))
+- \[`pylint`\] Add the `__prepare__` method to the list of recognized dunder method ([#9529](https://github.com/astral-sh/ruff/pull/9529))
+- \[`pylint`\] Ignore unnecessary dunder calls within dunder definitions ([#9496](https://github.com/astral-sh/ruff/pull/9496))
+- \[`refurb`\] Avoid bailing when `reimplemented-operator` is called on function (`FURB118`) ([#9556](https://github.com/astral-sh/ruff/pull/9556))
+- \[`ruff`\] Avoid treating named expressions as static keys (`RUF011`) ([#9494](https://github.com/astral-sh/ruff/pull/9494))
+
+### Documentation
+
+- Add instructions on using `noqa` with isort rules ([#9555](https://github.com/astral-sh/ruff/pull/9555))
+- Documentation update for URL giving 'page not found' ([#9565](https://github.com/astral-sh/ruff/pull/9565))
+- Fix admonition in dark mode ([#9502](https://github.com/astral-sh/ruff/pull/9502))
+- Update contributing docs to use `cargo bench -p ruff_benchmark` ([#9535](https://github.com/astral-sh/ruff/pull/9535))
+- Update emacs integration section to include `emacs-ruff-format` ([#9403](https://github.com/astral-sh/ruff/pull/9403))
+- \[`flake8-blind-except`\] Document exceptions to `blind-except` rule ([#9580](https://github.com/astral-sh/ruff/pull/9580))
+
+## 0.1.15
+
+### Preview features
+
+- Error when `NURSERY` selector is used with `--preview` ([#9682](https://github.com/astral-sh/ruff/pull/9682))
+- Preserve indentation around multiline strings in formatter ([#9637](https://github.com/astral-sh/ruff/pull/9637))
+- \[`flake8-return`\] Add fixes for all rules (`RET505`, `RET506`, `RET507`, `RET508`) ([#9595](https://github.com/astral-sh/ruff/pull/9595))
+- \[`flake8-simplify`\] Add fix for `if-with-same-arms` (`SIM114`) ([#9591](https://github.com/astral-sh/ruff/pull/9591))
+- \[`pycodestyle`\] Add fix for `multiple-imports-on-one-line` (`E401`) ([#9518](https://github.com/astral-sh/ruff/pull/9518))
+- \[`pylint`\] Add fix for `collapsible-else-if` (`PLR5501`) ([#9594](https://github.com/astral-sh/ruff/pull/9594))
+- \[`pylint`\] Add fix for `useless-else-on-loop` (`PLW0120`) ([#9590](https://github.com/astral-sh/ruff/pull/9590))
+- \[`pylint`\] Implement `assigning-non-slot` (`E0237`) ([#9623](https://github.com/astral-sh/ruff/pull/9623))
+- \[`pylint`\] Implement `potential-index-error` (`PLE0643`) ([#9545](https://github.com/astral-sh/ruff/pull/9545))
+- \[`pylint`\] Implement `too-many-nested-blocks` (`PLR1702`) ([#9172](https://github.com/astral-sh/ruff/pull/9172))
+- \[`ruff`\] Add rule to sort `__slots__` and `__match_args__` ([#9564](https://github.com/astral-sh/ruff/pull/9564))
+- \[`ruff`\] Detect unnecessary `dict` comprehensions for iterables (`RUF025`) ([#9613](https://github.com/astral-sh/ruff/pull/9613))
+- \[`ruff`\] Guard against use of `default_factory` as a keyword argument (`RUF026`) ([#9651](https://github.com/astral-sh/ruff/pull/9651))
+- \[`ruff`\] Implement `mutable-fromkeys-value` (`RUF024`) ([#9597](https://github.com/astral-sh/ruff/pull/9597))
+
+### CLI
+
+- Enable auto-wrapping of `--help` output ([#9633](https://github.com/astral-sh/ruff/pull/9633))
+
+### Bug fixes
+
+- Avoid rendering display-only rules as fixable ([#9649](https://github.com/astral-sh/ruff/pull/9649))
+- Detect automagic-like assignments in notebooks ([#9653](https://github.com/astral-sh/ruff/pull/9653))
+- Generate custom JSON schema for dynamic setting ([#9632](https://github.com/astral-sh/ruff/pull/9632))
+- \[`flake8-no-pep420`\] Include global `--config` when determining namespace packages ([#9603](https://github.com/astral-sh/ruff/pull/9603))
+- \[`flake8-pie`\] Omit bound tuples passed to `.startswith` or `.endswith` ([#9661](https://github.com/astral-sh/ruff/pull/9661))
+- \[`flake8-return`\] Avoid panic when fixing inlined else blocks ([#9657](https://github.com/astral-sh/ruff/pull/9657))
+- \[`flake8-return`\] Consider exception suppression in unnecessary assignment ([#9673](https://github.com/astral-sh/ruff/pull/9673))
+- \[`flake8-return`\] Take `NoReturn` annotation into account when analyzing implicit returns ([#9636](https://github.com/astral-sh/ruff/pull/9636))
+- \[`flake8-simplify`\] Support inverted returns in `needless-bool` (`SIM103`) ([#9619](https://github.com/astral-sh/ruff/pull/9619))
+- \[`flake8-type-checking`\] Add Pydantic's `BaseConfig` to default-copy list ([#9650](https://github.com/astral-sh/ruff/pull/9650))
+- \[`flake8-type-checking`\] Avoid marking `InitVar` as a typing-only annotation ([#9688](https://github.com/astral-sh/ruff/pull/9688))
+- \[`pycodestyle`\] Allow `dtype` comparisons in `type-comparison` ([#9676](https://github.com/astral-sh/ruff/pull/9676))
+- \[`pydocstyle`\] Re-implement `last-line-after-section` (`D413`) ([#9654](https://github.com/astral-sh/ruff/pull/9654))
+
+### Documentation
+
+- \[`flake8-pytest-style`\] Add fix safety documentation for `duplicate-parameterize-test-cases` ([#9678](https://github.com/astral-sh/ruff/pull/9678))
+- \[`pylint`\] Document `literal-membership` fix safety conditions ([#9677](https://github.com/astral-sh/ruff/pull/9677))
+- \[`isort`\] Fix reference to `isort` rule code ([#9598](https://github.com/astral-sh/ruff/pull/9598))

changelogs/0.10.x.md

@@ -0,0 +1,101 @@
+# Changelog 0.10.x
+
+## 0.10.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.10.0) for a migration guide and overview of the changes!
+
+### Breaking changes
+
+See also, the "Remapped rules" section which may result in disabled rules.
+
+- **Changes to how the Python version is inferred when a `target-version` is not specified** ([#16319](https://github.com/astral-sh/ruff/pull/16319))
+
+    Because of a mistake in the release process, the `requires-python` inference changes are not included in this release and instead shipped as part of 0.11.0.
+    You can find a description of this change in the 0.11.0 section.
+
+- **Updated `TYPE_CHECKING` behavior** ([#16669](https://github.com/astral-sh/ruff/pull/16669))
+
+    Previously, Ruff only recognized typechecking blocks that tested the `typing.TYPE_CHECKING` symbol. Now, Ruff recognizes any local variable named `TYPE_CHECKING`. This release also removes support for the legacy `if 0:` and `if False:` typechecking checks. Use a local `TYPE_CHECKING` variable instead.
+
+- **More robust noqa parsing** ([#16483](https://github.com/astral-sh/ruff/pull/16483))
+
+    The syntax for both file-level and in-line suppression comments has been unified and made more robust to certain errors. In most cases, this will result in more suppression comments being read by Ruff, but there are a few instances where previously read comments will now log an error to the user instead. Please refer to the documentation on [_Error suppression_](https://docs.astral.sh/ruff/linter/#error-suppression) for the full specification.
+
+- **Avoid unnecessary parentheses around with statements with a single context manager and a trailing comment** ([#14005](https://github.com/astral-sh/ruff/pull/14005))
+
+    This change fixes a bug in the formatter where it introduced unnecessary parentheses around with statements with a single context manager and a trailing comment. This change may result in a change in formatting for some users.
+
+- **Bump alpine default tag to 3.21 for derived Docker images** ([#16456](https://github.com/astral-sh/ruff/pull/16456))
+
+    Alpine 3.21 was released in Dec 2024 and is used in the official Alpine-based Python images. Now the ruff:alpine image will use 3.21 instead of 3.20 and ruff:alpine3.20 will no longer be updated.
+
+### Deprecated Rules
+
+The following rules have been deprecated:
+
+- [`non-pep604-isinstance`](https://docs.astral.sh/ruff/rules/non-pep604-isinstance/) (`UP038`)
+- [`suspicious-xmle-tree-usage`](https://docs.astral.sh/ruff/rules/suspicious-xmle-tree-usage/) (`S320`)
+
+### Remapped rules
+
+The following rules have been remapped to new rule codes:
+
+- \[`unsafe-markup-use`\]: `RUF035` to `S704`
+
+### Stabilization
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`batched-without-explicit-strict`](https://docs.astral.sh/ruff/rules/batched-without-explicit-strict) (`B911`)
+- [`unnecessary-dict-comprehension-for-iterable`](https://docs.astral.sh/ruff/rules/unnecessary-dict-comprehension-for-iterable) (`C420`)
+- [`datetime-min-max`](https://docs.astral.sh/ruff/rules/datetime-min-max) (`DTZ901`)
+- [`fast-api-unused-path-parameter`](https://docs.astral.sh/ruff/rules/fast-api-unused-path-parameter) (`FAST003`)
+- [`root-logger-call`](https://docs.astral.sh/ruff/rules/root-logger-call) (`LOG015`)
+- [`len-test`](https://docs.astral.sh/ruff/rules/len-test) (`PLC1802`)
+- [`shallow-copy-environ`](https://docs.astral.sh/ruff/rules/shallow-copy-environ) (`PLW1507`)
+- [`os-listdir`](https://docs.astral.sh/ruff/rules/os-listdir) (`PTH208`)
+- [`invalid-pathlib-with-suffix`](https://docs.astral.sh/ruff/rules/invalid-pathlib-with-suffix) (`PTH210`)
+- [`invalid-assert-message-literal-argument`](https://docs.astral.sh/ruff/rules/invalid-assert-message-literal-argument) (`RUF040`)
+- [`unnecessary-nested-literal`](https://docs.astral.sh/ruff/rules/unnecessary-nested-literal) (`RUF041`)
+- [`unnecessary-cast-to-int`](https://docs.astral.sh/ruff/rules/unnecessary-cast-to-int) (`RUF046`)
+- [`map-int-version-parsing`](https://docs.astral.sh/ruff/rules/map-int-version-parsing) (`RUF048`)
+- [`if-key-in-dict-del`](https://docs.astral.sh/ruff/rules/if-key-in-dict-del) (`RUF051`)
+- [`unsafe-markup-use`](https://docs.astral.sh/ruff/rules/unsafe-markup-use) (`S704`). This rule has also been renamed from `RUF035`.
+- [`split-static-string`](https://docs.astral.sh/ruff/rules/split-static-string) (`SIM905`)
+- [`runtime-cast-value`](https://docs.astral.sh/ruff/rules/runtime-cast-value) (`TC006`)
+- [`unquoted-type-alias`](https://docs.astral.sh/ruff/rules/unquoted-type-alias) (`TC007`)
+- [`non-pep646-unpack`](https://docs.astral.sh/ruff/rules/non-pep646-unpack) (`UP044`)
+
+The following behaviors have been stabilized:
+
+- [`bad-staticmethod-argument`](https://docs.astral.sh/ruff/rules/bad-staticmethod-argument/) (`PLW0211`) [`invalid-first-argument-name-for-class-method`](https://docs.astral.sh/ruff/rules/invalid-first-argument-name-for-class-method/) (`N804`): `__new__` methods are now no longer flagged by `invalid-first-argument-name-for-class-method` (`N804`) but instead by `bad-staticmethod-argument` (`PLW0211`)
+- [`bad-str-strip-call`](https://docs.astral.sh/ruff/rules/bad-str-strip-call/) (`PLE1310`): The rule now applies to objects which are known to have type `str` or `bytes`.
+- [`custom-type-var-for-self`](https://docs.astral.sh/ruff/rules/custom-type-var-for-self/) (`PYI019`): More accurate detection of custom `TypeVars` replaceable by `Self`. The range of the diagnostic is now the full function header rather than just the return annotation.
+- [`invalid-argument-name`](https://docs.astral.sh/ruff/rules/invalid-argument-name/) (`N803`): Ignore argument names of functions decorated with `typing.override`
+- [`invalid-envvar-default`](https://docs.astral.sh/ruff/rules/invalid-envvar-default/) (`PLW1508`): Detect default value arguments to `os.environ.get` with invalid type.
+- [`pytest-raises-with-multiple-statements`](https://docs.astral.sh/ruff/rules/pytest-raises-with-multiple-statements/) (`PT012`) [`pytest-warns-with-multiple-statements`](https://docs.astral.sh/ruff/rules/pytest-warns-with-multiple-statements/) (`PT031`): Allow `for` statements with an empty body in `pytest.raises` and `pytest.warns` `with` statements.
+- [`redundant-open-modes`](https://docs.astral.sh/ruff/rules/redundant-open-modes/) (`UP015`): The diagnostic range is now the range of the redundant mode argument where it previously was the range of the entire open call. You may have to replace your `noqa` comments when suppressing `UP015`.
+- [`stdlib-module-shadowing`](https://docs.astral.sh/ruff/rules/stdlib-module-shadowing/) (`A005`): Changes the default value of `lint.flake8-builtins.strict-checking` from `true` to `false`.
+- [`type-none-comparison`](https://docs.astral.sh/ruff/rules/type-none-comparison/) (`FURB169`): Now also recognizes `type(expr) is type(None)` comparisons where `expr` isn't a name expression.
+
+The following fixes or improvements to fixes have been stabilized:
+
+- [`repeated-equality-comparison`](https://docs.astral.sh/ruff/rules/repeated-equality-comparison/) (`PLR1714`) ([#16685](https://github.com/astral-sh/ruff/pull/16685))
+- [`needless-bool`](https://docs.astral.sh/ruff/rules/needless-bool/) (`SIM103`) ([#16684](https://github.com/astral-sh/ruff/pull/16684))
+- [`unused-private-type-var`](https://docs.astral.sh/ruff/rules/unused-private-type-var/) (`PYI018`) ([#16682](https://github.com/astral-sh/ruff/pull/16682))
+
+### Server
+
+- Remove logging output for `ruff.printDebugInformation` ([#16617](https://github.com/astral-sh/ruff/pull/16617))
+
+### Configuration
+
+- \[`flake8-builtins`\] Deprecate the `builtins-` prefixed options in favor of the unprefixed options (e.g. `builtins-allowed-modules` is now deprecated in favor of `allowed-modules`) ([#16092](https://github.com/astral-sh/ruff/pull/16092))
+
+### Bug fixes
+
+- [flake8-bandit] Fix mixed-case hash algorithm names (S324) ([#16552](https://github.com/astral-sh/ruff/pull/16552))
+
+### CLI
+
+- [ruff] Fix `last_tag`/`commits_since_last_tag` for `version` command ([#16686](https://github.com/astral-sh/ruff/pull/16686))

changelogs/0.11.x.md

@@ -0,0 +1,373 @@
+# Changelog 0.11.x
+
+## 0.11.0
+
+This is a follow-up to release 0.10.0. Because of a mistake in the release process, the `requires-python` inference changes were not included in that release. Ruff 0.11.0 now includes this change as well as the stabilization of the preview behavior for `PGH004`.
+
+### Breaking changes
+
+- **Changes to how the Python version is inferred when a `target-version` is not specified** ([#16319](https://github.com/astral-sh/ruff/pull/16319))
+
+    In previous versions of Ruff, you could specify your Python version with:
+
+    - The `target-version` option in a `ruff.toml` file or the `[tool.ruff]` section of a pyproject.toml file.
+    - The `project.requires-python` field in a `pyproject.toml` file with a `[tool.ruff]` section.
+
+    These options worked well in most cases, and are still recommended for fine control of the Python version. However, because of the way Ruff discovers config files, `pyproject.toml` files without a `[tool.ruff]` section would be ignored, including the `requires-python` setting. Ruff would then use the default Python version (3.9 as of this writing) instead, which is surprising when you've attempted to request another version.
+
+    In v0.10, config discovery has been updated to address this issue:
+
+    - If Ruff finds a `ruff.toml` file without a `target-version`, it will check
+        for a `pyproject.toml` file in the same directory and respect its
+        `requires-python` version, even if it does not contain a `[tool.ruff]`
+        section.
+    - If Ruff finds a user-level configuration, the `requires-python` field of the closest `pyproject.toml` in a parent directory will take precedence.
+    - If there is no config file (`ruff.toml`or `pyproject.toml` with a
+        `[tool.ruff]` section) in the directory of the file being checked, Ruff will
+        search for the closest `pyproject.toml` in the parent directories and use its
+        `requires-python` setting.
+
+### Stabilization
+
+The following behaviors have been stabilized:
+
+- [`blanket-noqa`](https://docs.astral.sh/ruff/rules/blanket-noqa/) (`PGH004`): Also detect blanked file-level noqa comments (and not just line level comments).
+
+### Preview features
+
+- [syntax-errors] Tuple unpacking in `for` statement iterator clause before Python 3.9 ([#16558](https://github.com/astral-sh/ruff/pull/16558))
+
+## 0.11.1
+
+### Preview features
+
+- \[`airflow`\] Add `chain`, `chain_linear` and `cross_downstream` for `AIR302` ([#16647](https://github.com/astral-sh/ruff/pull/16647))
+- [syntax-errors] Improve error message and range for pre-PEP-614 decorator syntax errors ([#16581](https://github.com/astral-sh/ruff/pull/16581))
+- [syntax-errors] PEP 701 f-strings before Python 3.12 ([#16543](https://github.com/astral-sh/ruff/pull/16543))
+- [syntax-errors] Parenthesized context managers before Python 3.9 ([#16523](https://github.com/astral-sh/ruff/pull/16523))
+- [syntax-errors] Star annotations before Python 3.11 ([#16545](https://github.com/astral-sh/ruff/pull/16545))
+- [syntax-errors] Star expression in index before Python 3.11 ([#16544](https://github.com/astral-sh/ruff/pull/16544))
+- [syntax-errors] Unparenthesized assignment expressions in sets and indexes ([#16404](https://github.com/astral-sh/ruff/pull/16404))
+
+### Bug fixes
+
+- Server: Allow `FixAll` action in presence of version-specific syntax errors ([#16848](https://github.com/astral-sh/ruff/pull/16848))
+- \[`flake8-bandit`\] Allow raw strings in `suspicious-mark-safe-usage` (`S308`) #16702 ([#16770](https://github.com/astral-sh/ruff/pull/16770))
+- \[`refurb`\] Avoid panicking `unwrap` in `verbose-decimal-constructor` (`FURB157`) ([#16777](https://github.com/astral-sh/ruff/pull/16777))
+- \[`refurb`\] Fix starred expressions fix (`FURB161`) ([#16550](https://github.com/astral-sh/ruff/pull/16550))
+- Fix `--statistics` reporting for unsafe fixes ([#16756](https://github.com/astral-sh/ruff/pull/16756))
+
+### Rule changes
+
+- \[`flake8-executables`\] Allow `uv run` in shebang line for `shebang-missing-python` (`EXE003`) ([#16849](https://github.com/astral-sh/ruff/pull/16849),[#16855](https://github.com/astral-sh/ruff/pull/16855))
+
+### CLI
+
+- Add `--exit-non-zero-on-format` ([#16009](https://github.com/astral-sh/ruff/pull/16009))
+
+### Documentation
+
+- Update Ruff tutorial to avoid non-existent fix in `__init__.py` ([#16818](https://github.com/astral-sh/ruff/pull/16818))
+- \[`flake8-gettext`\] Swap `format-` and `printf-in-get-text-func-call` examples (`INT002`, `INT003`) ([#16769](https://github.com/astral-sh/ruff/pull/16769))
+
+## 0.11.2
+
+### Preview features
+
+- [syntax-errors] Fix false-positive syntax errors emitted for annotations on variadic parameters before Python 3.11 ([#16878](https://github.com/astral-sh/ruff/pull/16878))
+
+## 0.11.3
+
+### Preview features
+
+- \[`airflow`\] Add more autofixes for `AIR302` ([#16876](https://github.com/astral-sh/ruff/pull/16876), [#16977](https://github.com/astral-sh/ruff/pull/16977), [#16976](https://github.com/astral-sh/ruff/pull/16976), [#16965](https://github.com/astral-sh/ruff/pull/16965))
+- \[`airflow`\] Move `AIR301` to `AIR002` ([#16978](https://github.com/astral-sh/ruff/pull/16978))
+- \[`airflow`\] Move `AIR302` to `AIR301` and `AIR303` to `AIR302` ([#17151](https://github.com/astral-sh/ruff/pull/17151))
+- \[`flake8-bandit`\] Mark `str` and `list[str]` literals as trusted input (`S603`) ([#17136](https://github.com/astral-sh/ruff/pull/17136))
+- \[`ruff`\] Support slices in `RUF005` ([#17078](https://github.com/astral-sh/ruff/pull/17078))
+- [syntax-errors] Start detecting compile-time syntax errors ([#16106](https://github.com/astral-sh/ruff/pull/16106))
+- [syntax-errors] Duplicate type parameter names ([#16858](https://github.com/astral-sh/ruff/pull/16858))
+- [syntax-errors] Irrefutable `case` pattern before final case ([#16905](https://github.com/astral-sh/ruff/pull/16905))
+- [syntax-errors] Multiple assignments in `case` pattern ([#16957](https://github.com/astral-sh/ruff/pull/16957))
+- [syntax-errors] Single starred assignment target ([#17024](https://github.com/astral-sh/ruff/pull/17024))
+- [syntax-errors] Starred expressions in `return`, `yield`, and `for` ([#17134](https://github.com/astral-sh/ruff/pull/17134))
+- [syntax-errors] Store to or delete `__debug__` ([#16984](https://github.com/astral-sh/ruff/pull/16984))
+
+### Bug fixes
+
+- Error instead of `panic!` when running Ruff from a deleted directory (#16903) ([#17054](https://github.com/astral-sh/ruff/pull/17054))
+- [syntax-errors] Fix false positive for parenthesized tuple index ([#16948](https://github.com/astral-sh/ruff/pull/16948))
+
+### CLI
+
+- Check `pyproject.toml` correctly when it is passed via stdin ([#16971](https://github.com/astral-sh/ruff/pull/16971))
+
+### Configuration
+
+- \[`flake8-import-conventions`\] Add import `numpy.typing as npt` to default `flake8-import-conventions.aliases` ([#17133](https://github.com/astral-sh/ruff/pull/17133))
+
+### Documentation
+
+- \[`refurb`\] Document why `UserDict`, `UserList`, and `UserString` are preferred over `dict`, `list`, and `str` (`FURB189`) ([#16927](https://github.com/astral-sh/ruff/pull/16927))
+
+## 0.11.4
+
+### Preview features
+
+- \[`ruff`\] Implement `invalid-rule-code` as `RUF102` ([#17138](https://github.com/astral-sh/ruff/pull/17138))
+- [syntax-errors] Detect duplicate keys in `match` mapping patterns ([#17129](https://github.com/astral-sh/ruff/pull/17129))
+- [syntax-errors] Detect duplicate attributes in `match` class patterns ([#17186](https://github.com/astral-sh/ruff/pull/17186))
+- [syntax-errors] Detect invalid syntax in annotations ([#17101](https://github.com/astral-sh/ruff/pull/17101))
+
+### Bug fixes
+
+- [syntax-errors] Fix multiple assignment error for class fields in `match` patterns ([#17184](https://github.com/astral-sh/ruff/pull/17184))
+- Don't skip visiting non-tuple slice in `typing.Annotated` subscripts ([#17201](https://github.com/astral-sh/ruff/pull/17201))
+
+## 0.11.5
+
+### Preview features
+
+- \[`airflow`\] Add missing `AIR302` attribute check ([#17115](https://github.com/astral-sh/ruff/pull/17115))
+- \[`airflow`\] Expand module path check to individual symbols (`AIR302`) ([#17278](https://github.com/astral-sh/ruff/pull/17278))
+- \[`airflow`\] Extract `AIR312` from `AIR302` rules (`AIR302`, `AIR312`) ([#17152](https://github.com/astral-sh/ruff/pull/17152))
+- \[`airflow`\] Update outdated `AIR301`, `AIR302` rules ([#17123](https://github.com/astral-sh/ruff/pull/17123))
+- [syntax-errors] Async comprehension in sync comprehension ([#17177](https://github.com/astral-sh/ruff/pull/17177))
+- [syntax-errors] Check annotations in annotated assignments ([#17283](https://github.com/astral-sh/ruff/pull/17283))
+- [syntax-errors] Extend annotation checks to `await` ([#17282](https://github.com/astral-sh/ruff/pull/17282))
+
+### Bug fixes
+
+- \[`flake8-pie`\] Avoid false positive for multiple assignment with `auto()` (`PIE796`) ([#17274](https://github.com/astral-sh/ruff/pull/17274))
+
+### Rule changes
+
+- \[`ruff`\] Fix `RUF100` to detect unused file-level `noqa` directives with specific codes (#17042) ([#17061](https://github.com/astral-sh/ruff/pull/17061))
+- \[`flake8-pytest-style`\] Avoid false positive for legacy form of `pytest.raises` (`PT011`) ([#17231](https://github.com/astral-sh/ruff/pull/17231))
+
+### Documentation
+
+- Fix formatting of "See Style Guide" link ([#17272](https://github.com/astral-sh/ruff/pull/17272))
+
+## 0.11.6
+
+### Preview features
+
+- Avoid adding whitespace to the end of a docstring after an escaped quote ([#17216](https://github.com/astral-sh/ruff/pull/17216))
+- \[`airflow`\] Extract `AIR311` from `AIR301` rules (`AIR301`, `AIR311`) ([#17310](https://github.com/astral-sh/ruff/pull/17310), [#17422](https://github.com/astral-sh/ruff/pull/17422))
+
+### Bug fixes
+
+- Raise syntax error when `\` is at end of file ([#17409](https://github.com/astral-sh/ruff/pull/17409))
+
+## 0.11.7
+
+### Preview features
+
+- \[`airflow`\] Apply auto fixes to cases where the names have changed in Airflow 3 (`AIR301`) ([#17355](https://github.com/astral-sh/ruff/pull/17355))
+- \[`perflint`\] Implement fix for `manual-dict-comprehension` (`PERF403`) ([#16719](https://github.com/astral-sh/ruff/pull/16719))
+- [syntax-errors] Make duplicate parameter names a semantic error ([#17131](https://github.com/astral-sh/ruff/pull/17131))
+
+### Bug fixes
+
+- \[`airflow`\] Fix typos in provider package names (`AIR302`, `AIR312`) ([#17574](https://github.com/astral-sh/ruff/pull/17574))
+- \[`flake8-type-checking`\] Visit keyword arguments in checks involving `typing.cast`/`typing.NewType` arguments ([#17538](https://github.com/astral-sh/ruff/pull/17538))
+- \[`pyupgrade`\] Preserve parenthesis when fixing native literals containing newlines (`UP018`) ([#17220](https://github.com/astral-sh/ruff/pull/17220))
+- \[`refurb`\] Mark the `FURB161` fix unsafe except for integers and booleans ([#17240](https://github.com/astral-sh/ruff/pull/17240))
+
+### Rule changes
+
+- \[`perflint`\] Allow list function calls to be replaced with a comprehension (`PERF401`) ([#17519](https://github.com/astral-sh/ruff/pull/17519))
+- \[`pycodestyle`\] Auto-fix redundant boolean comparison (`E712`) ([#17090](https://github.com/astral-sh/ruff/pull/17090))
+- \[`pylint`\] make fix unsafe if delete comments (`PLR1730`) ([#17459](https://github.com/astral-sh/ruff/pull/17459))
+
+### Documentation
+
+- Add fix safety sections to docs for several rules ([#17410](https://github.com/astral-sh/ruff/pull/17410),[#17440](https://github.com/astral-sh/ruff/pull/17440),[#17441](https://github.com/astral-sh/ruff/pull/17441),[#17443](https://github.com/astral-sh/ruff/pull/17443),[#17444](https://github.com/astral-sh/ruff/pull/17444))
+
+## 0.11.8
+
+### Preview features
+
+- \[`airflow`\] Apply auto fixes to cases where the names have changed in Airflow 3 (`AIR302`, `AIR311`) ([#17553](https://github.com/astral-sh/ruff/pull/17553), [#17570](https://github.com/astral-sh/ruff/pull/17570), [#17571](https://github.com/astral-sh/ruff/pull/17571))
+- \[`airflow`\] Extend `AIR301` rule ([#17598](https://github.com/astral-sh/ruff/pull/17598))
+- \[`airflow`\] Update existing `AIR302` rules with better suggestions ([#17542](https://github.com/astral-sh/ruff/pull/17542))
+- \[`refurb`\] Mark fix as safe for `readlines-in-for` (`FURB129`) ([#17644](https://github.com/astral-sh/ruff/pull/17644))
+- [syntax-errors] `nonlocal` declaration at module level ([#17559](https://github.com/astral-sh/ruff/pull/17559))
+- [syntax-errors] Detect single starred expression assignment `x = *y` ([#17624](https://github.com/astral-sh/ruff/pull/17624))
+
+### Bug fixes
+
+- \[`flake8-pyi`\] Ensure `Literal[None,] | Literal[None,]` is not autofixed to `None | None` (`PYI061`) ([#17659](https://github.com/astral-sh/ruff/pull/17659))
+- \[`flake8-use-pathlib`\] Avoid suggesting `Path.iterdir()` for `os.listdir` with file descriptor (`PTH208`) ([#17715](https://github.com/astral-sh/ruff/pull/17715))
+- \[`flake8-use-pathlib`\] Fix `PTH104` false positive when `rename` is passed a file descriptor ([#17712](https://github.com/astral-sh/ruff/pull/17712))
+- \[`flake8-use-pathlib`\] Fix `PTH116` false positive when `stat` is passed a file descriptor ([#17709](https://github.com/astral-sh/ruff/pull/17709))
+- \[`flake8-use-pathlib`\] Fix `PTH123` false positive when `open` is passed a file descriptor from a function call ([#17705](https://github.com/astral-sh/ruff/pull/17705))
+- \[`pycodestyle`\] Fix duplicated diagnostic in `E712` ([#17651](https://github.com/astral-sh/ruff/pull/17651))
+- \[`pylint`\] Detect `global` declarations in module scope (`PLE0118`) ([#17411](https://github.com/astral-sh/ruff/pull/17411))
+- [syntax-errors] Make `async-comprehension-in-sync-comprehension` more specific ([#17460](https://github.com/astral-sh/ruff/pull/17460))
+
+### Configuration
+
+- Add option to disable `typing_extensions` imports ([#17611](https://github.com/astral-sh/ruff/pull/17611))
+
+### Documentation
+
+- Fix example syntax for the `lint.pydocstyle.ignore-var-parameters` option ([#17740](https://github.com/astral-sh/ruff/pull/17740))
+- Add fix safety sections (`ASYNC116`, `FLY002`, `D200`, `RUF005`, `RUF017`, `RUF027`, `RUF028`, `RUF057`) ([#17497](https://github.com/astral-sh/ruff/pull/17497), [#17496](https://github.com/astral-sh/ruff/pull/17496), [#17502](https://github.com/astral-sh/ruff/pull/17502), [#17484](https://github.com/astral-sh/ruff/pull/17484), [#17480](https://github.com/astral-sh/ruff/pull/17480), [#17485](https://github.com/astral-sh/ruff/pull/17485), [#17722](https://github.com/astral-sh/ruff/pull/17722), [#17483](https://github.com/astral-sh/ruff/pull/17483))
+
+### Other changes
+
+- Add Python 3.14 to configuration options ([#17647](https://github.com/astral-sh/ruff/pull/17647))
+- Make syntax error for unparenthesized except tuples version specific to before 3.14 ([#17660](https://github.com/astral-sh/ruff/pull/17660))
+
+## 0.11.9
+
+### Preview features
+
+- Default to latest supported Python version for version-related syntax errors ([#17529](https://github.com/astral-sh/ruff/pull/17529))
+- Implement deferred annotations for Python 3.14 ([#17658](https://github.com/astral-sh/ruff/pull/17658))
+- \[`airflow`\] Fix `SQLTableCheckOperator` typo (`AIR302`) ([#17946](https://github.com/astral-sh/ruff/pull/17946))
+- \[`airflow`\] Remove `airflow.utils.dag_parsing_context.get_parsing_context` (`AIR301`) ([#17852](https://github.com/astral-sh/ruff/pull/17852))
+- \[`airflow`\] Skip attribute check in try catch block (`AIR301`) ([#17790](https://github.com/astral-sh/ruff/pull/17790))
+- \[`flake8-bandit`\] Mark tuples of string literals as trusted input in `S603` ([#17801](https://github.com/astral-sh/ruff/pull/17801))
+- \[`isort`\] Check full module path against project root(s) when categorizing first-party imports ([#16565](https://github.com/astral-sh/ruff/pull/16565))
+- \[`ruff`\] Add new rule `in-empty-collection` (`RUF060`) ([#16480](https://github.com/astral-sh/ruff/pull/16480))
+
+### Bug fixes
+
+- Fix missing `combine` call for `lint.typing-extensions` setting ([#17823](https://github.com/astral-sh/ruff/pull/17823))
+- \[`flake8-async`\] Fix module name in `ASYNC110`, `ASYNC115`, and `ASYNC116` fixes ([#17774](https://github.com/astral-sh/ruff/pull/17774))
+- \[`pyupgrade`\] Add spaces between tokens as necessary to avoid syntax errors in `UP018` autofix ([#17648](https://github.com/astral-sh/ruff/pull/17648))
+- \[`refurb`\] Fix false positive for float and complex numbers in `FURB116` ([#17661](https://github.com/astral-sh/ruff/pull/17661))
+- [parser] Flag single unparenthesized generator expr with trailing comma in arguments. ([#17893](https://github.com/astral-sh/ruff/pull/17893))
+
+### Documentation
+
+- Add instructions on how to upgrade to a newer Rust version ([#17928](https://github.com/astral-sh/ruff/pull/17928))
+- Update code of conduct email address ([#17875](https://github.com/astral-sh/ruff/pull/17875))
+- Add fix safety sections to `PLC2801`, `PLR1722`, and `RUF013` ([#17825](https://github.com/astral-sh/ruff/pull/17825), [#17826](https://github.com/astral-sh/ruff/pull/17826), [#17759](https://github.com/astral-sh/ruff/pull/17759))
+- Add link to `check-typed-exception` from `S110` and `S112` ([#17786](https://github.com/astral-sh/ruff/pull/17786))
+
+### Other changes
+
+- Allow passing a virtual environment to `ruff analyze graph` ([#17743](https://github.com/astral-sh/ruff/pull/17743))
+
+## 0.11.10
+
+### Preview features
+
+- \[`ruff`\] Implement a recursive check for `RUF060` ([#17976](https://github.com/astral-sh/ruff/pull/17976))
+- \[`airflow`\] Enable autofixes for `AIR301` and `AIR311` ([#17941](https://github.com/astral-sh/ruff/pull/17941))
+- \[`airflow`\] Apply try catch guard to all `AIR3` rules ([#17887](https://github.com/astral-sh/ruff/pull/17887))
+- \[`airflow`\] Extend `AIR311` rules ([#17913](https://github.com/astral-sh/ruff/pull/17913))
+
+### Bug fixes
+
+- \[`flake8-bugbear`\] Ignore `B028` if `skip_file_prefixes` is present ([#18047](https://github.com/astral-sh/ruff/pull/18047))
+- \[`flake8-pie`\] Mark autofix for `PIE804` as unsafe if the dictionary contains comments ([#18046](https://github.com/astral-sh/ruff/pull/18046))
+- \[`flake8-simplify`\] Correct behavior for `str.split`/`rsplit` with `maxsplit=0` (`SIM905`) ([#18075](https://github.com/astral-sh/ruff/pull/18075))
+- \[`flake8-simplify`\] Fix `SIM905` autofix for `rsplit` creating a reversed list literal ([#18045](https://github.com/astral-sh/ruff/pull/18045))
+- \[`flake8-use-pathlib`\] Suppress diagnostics for all `os.*` functions that have the `dir_fd` parameter (`PTH`) ([#17968](https://github.com/astral-sh/ruff/pull/17968))
+- \[`refurb`\] Mark autofix as safe only for number literals (`FURB116`) ([#17692](https://github.com/astral-sh/ruff/pull/17692))
+
+### Rule changes
+
+- \[`flake8-bandit`\] Skip `S608` for expressionless f-strings ([#17999](https://github.com/astral-sh/ruff/pull/17999))
+- \[`flake8-pytest-style`\] Don't recommend `usefixtures` for `parametrize` values (`PT019`) ([#17650](https://github.com/astral-sh/ruff/pull/17650))
+- \[`pyupgrade`\] Add `resource.error` as deprecated alias of `OSError` (`UP024`) ([#17933](https://github.com/astral-sh/ruff/pull/17933))
+
+### CLI
+
+- Disable jemalloc on Android ([#18033](https://github.com/astral-sh/ruff/pull/18033))
+
+### Documentation
+
+- Update Neovim setup docs ([#18108](https://github.com/astral-sh/ruff/pull/18108))
+- \[`flake8-simplify`\] Add fix safety section (`SIM103`) ([#18086](https://github.com/astral-sh/ruff/pull/18086))
+- \[`flake8-simplify`\] Add fix safety section (`SIM112`) ([#18099](https://github.com/astral-sh/ruff/pull/18099))
+- \[`pylint`\] Add fix safety section (`PLC0414`) ([#17802](https://github.com/astral-sh/ruff/pull/17802))
+- \[`pylint`\] Add fix safety section (`PLE4703`) ([#17824](https://github.com/astral-sh/ruff/pull/17824))
+- \[`pylint`\] Add fix safety section (`PLW1514`) ([#17932](https://github.com/astral-sh/ruff/pull/17932))
+- \[`pylint`\] Add fix safety section (`PLW3301`) ([#17878](https://github.com/astral-sh/ruff/pull/17878))
+- \[`ruff`\] Add fix safety section (`RUF007`) ([#17755](https://github.com/astral-sh/ruff/pull/17755))
+- \[`ruff`\] Add fix safety section (`RUF033`) ([#17760](https://github.com/astral-sh/ruff/pull/17760))
+
+## 0.11.11
+
+### Preview features
+
+- \[`airflow`\] Add autofixes for `AIR302` and `AIR312` ([#17942](https://github.com/astral-sh/ruff/pull/17942))
+- \[`airflow`\] Move rules from `AIR312` to `AIR302` ([#17940](https://github.com/astral-sh/ruff/pull/17940))
+- \[`airflow`\] Update `AIR301` and `AIR311` with the latest Airflow implementations ([#17985](https://github.com/astral-sh/ruff/pull/17985))
+- \[`flake8-simplify`\] Enable fix in preview mode (`SIM117`) ([#18208](https://github.com/astral-sh/ruff/pull/18208))
+
+### Bug fixes
+
+- Fix inconsistent formatting of match-case on `[]` and `_` ([#18147](https://github.com/astral-sh/ruff/pull/18147))
+- \[`pylint`\] Fix `PLW1514` not recognizing the `encoding` positional argument of `codecs.open` ([#18109](https://github.com/astral-sh/ruff/pull/18109))
+
+### CLI
+
+- Add full option name in formatter warning ([#18217](https://github.com/astral-sh/ruff/pull/18217))
+
+### Documentation
+
+- Fix rendering of admonition in docs ([#18163](https://github.com/astral-sh/ruff/pull/18163))
+- \[`flake8-print`\] Improve print/pprint docs for `T201` and `T203` ([#18130](https://github.com/astral-sh/ruff/pull/18130))
+- \[`flake8-simplify`\] Add fix safety section (`SIM110`,`SIM210`) ([#18114](https://github.com/astral-sh/ruff/pull/18114),[#18100](https://github.com/astral-sh/ruff/pull/18100))
+- \[`pylint`\] Fix docs example that produced different output (`PLW0603`) ([#18216](https://github.com/astral-sh/ruff/pull/18216))
+
+## 0.11.12
+
+### Preview features
+
+- \[`airflow`\] Revise fix titles (`AIR3`) ([#18215](https://github.com/astral-sh/ruff/pull/18215))
+- \[`pylint`\] Implement `missing-maxsplit-arg` (`PLC0207`) ([#17454](https://github.com/astral-sh/ruff/pull/17454))
+- \[`pyupgrade`\] New rule `UP050` (`useless-class-metaclass-type`) ([#18334](https://github.com/astral-sh/ruff/pull/18334))
+- \[`flake8-use-pathlib`\] Replace `os.symlink` with `Path.symlink_to` (`PTH211`) ([#18337](https://github.com/astral-sh/ruff/pull/18337))
+
+### Bug fixes
+
+- \[`flake8-bugbear`\] Ignore `__debug__` attribute in `B010` ([#18357](https://github.com/astral-sh/ruff/pull/18357))
+- \[`flake8-async`\] Fix `anyio.sleep` argument name (`ASYNC115`, `ASYNC116`) ([#18262](https://github.com/astral-sh/ruff/pull/18262))
+- \[`refurb`\] Fix `FURB129` autofix generating invalid syntax ([#18235](https://github.com/astral-sh/ruff/pull/18235))
+
+### Rule changes
+
+- \[`flake8-implicit-str-concat`\] Add autofix for `ISC003` ([#18256](https://github.com/astral-sh/ruff/pull/18256))
+- \[`pycodestyle`\] Improve the diagnostic message for `E712` ([#18328](https://github.com/astral-sh/ruff/pull/18328))
+- \[`flake8-2020`\] Fix diagnostic message for `!=` comparisons (`YTT201`) ([#18293](https://github.com/astral-sh/ruff/pull/18293))
+- \[`pyupgrade`\] Make fix unsafe if it deletes comments (`UP010`) ([#18291](https://github.com/astral-sh/ruff/pull/18291))
+
+### Documentation
+
+- Simplify rules table to improve readability ([#18297](https://github.com/astral-sh/ruff/pull/18297))
+- Update editor integrations link in README ([#17977](https://github.com/astral-sh/ruff/pull/17977))
+- \[`flake8-bugbear`\] Add fix safety section (`B006`) ([#17652](https://github.com/astral-sh/ruff/pull/17652))
+
+## 0.11.13
+
+### Preview features
+
+- \[`airflow`\] Add unsafe fix for module moved cases (`AIR301`,`AIR311`,`AIR312`,`AIR302`) ([#18367](https://github.com/astral-sh/ruff/pull/18367),[#18366](https://github.com/astral-sh/ruff/pull/18366),[#18363](https://github.com/astral-sh/ruff/pull/18363),[#18093](https://github.com/astral-sh/ruff/pull/18093))
+- \[`refurb`\] Add coverage of `set` and `frozenset` calls (`FURB171`) ([#18035](https://github.com/astral-sh/ruff/pull/18035))
+- \[`refurb`\] Mark `FURB180` fix unsafe when class has bases ([#18149](https://github.com/astral-sh/ruff/pull/18149))
+
+### Bug fixes
+
+- \[`perflint`\] Fix missing parentheses for lambda and ternary conditions (`PERF401`, `PERF403`) ([#18412](https://github.com/astral-sh/ruff/pull/18412))
+- \[`pyupgrade`\] Apply `UP035` only on py313+ for `get_type_hints()` ([#18476](https://github.com/astral-sh/ruff/pull/18476))
+- \[`pyupgrade`\] Make fix unsafe if it deletes comments (`UP004`,`UP050`) ([#18393](https://github.com/astral-sh/ruff/pull/18393), [#18390](https://github.com/astral-sh/ruff/pull/18390))
+
+### Rule changes
+
+- \[`fastapi`\] Avoid false positive for class dependencies (`FAST003`) ([#18271](https://github.com/astral-sh/ruff/pull/18271))
+
+### Documentation
+
+- Update editor setup docs for Neovim and Vim ([#18324](https://github.com/astral-sh/ruff/pull/18324))
+
+### Other changes
+
+- Support Python 3.14 template strings (t-strings) in formatter and parser ([#17851](https://github.com/astral-sh/ruff/pull/17851))

changelogs/0.2.x.md

@@ -0,0 +1,271 @@
+# Changelog 0.2.x
+
+## 0.2.0
+
+### Breaking changes
+
+- The `NURSERY` selector cannot be used anymore
+- Legacy selection of nursery rules by exact codes is no longer allowed without preview enabled
+
+See also, the "Remapped rules" section which may result in disabled rules.
+
+### Deprecations
+
+The following rules are now deprecated:
+
+- [`missing-type-self`](https://docs.astral.sh/ruff/rules/missing-type-self/) (`ANN101`)
+- [`missing-type-cls`](https://docs.astral.sh/ruff/rules/missing-type-cls/) (`ANN102`)
+
+The following command line options are now deprecated:
+
+- `--show-source`; use `--output-format full` instead
+- `--no-show-source`; use `--output-format concise` instead
+- `--output-format text`; use `full` or `concise` instead
+
+The following settings have moved and the previous name is deprecated:
+
+- `ruff.allowed-confusables` → [`ruff.lint.allowed-confusables`](https://docs.astral.sh//ruff/settings/#lint_allowed-confusables)
+- `ruff.dummy-variable-rgx` → [`ruff.lint.dummy-variable-rgx`](https://docs.astral.sh//ruff/settings/#lint_dummy-variable-rgx)
+- `ruff.explicit-preview-rules` → [`ruff.lint.explicit-preview-rules`](https://docs.astral.sh//ruff/settings/#lint_explicit-preview-rules)
+- `ruff.extend-fixable` → [`ruff.lint.extend-fixable`](https://docs.astral.sh//ruff/settings/#lint_extend-fixable)
+- `ruff.extend-ignore` → [`ruff.lint.extend-ignore`](https://docs.astral.sh//ruff/settings/#lint_extend-ignore)
+- `ruff.extend-per-file-ignores` → [`ruff.lint.extend-per-file-ignores`](https://docs.astral.sh//ruff/settings/#lint_extend-per-file-ignores)
+- `ruff.extend-safe-fixes` → [`ruff.lint.extend-safe-fixes`](https://docs.astral.sh//ruff/settings/#lint_extend-safe-fixes)
+- `ruff.extend-select` → [`ruff.lint.extend-select`](https://docs.astral.sh//ruff/settings/#lint_extend-select)
+- `ruff.extend-unfixable` → [`ruff.lint.extend-unfixable`](https://docs.astral.sh//ruff/settings/#lint_extend-unfixable)
+- `ruff.extend-unsafe-fixes` → [`ruff.lint.extend-unsafe-fixes`](https://docs.astral.sh//ruff/settings/#lint_extend-unsafe-fixes)
+- `ruff.external` → [`ruff.lint.external`](https://docs.astral.sh//ruff/settings/#lint_external)
+- `ruff.fixable` → [`ruff.lint.fixable`](https://docs.astral.sh//ruff/settings/#lint_fixable)
+- `ruff.flake8-annotations` → [`ruff.lint.flake8-annotations`](https://docs.astral.sh//ruff/settings/#lint_flake8-annotations)
+- `ruff.flake8-bandit` → [`ruff.lint.flake8-bandit`](https://docs.astral.sh//ruff/settings/#lint_flake8-bandit)
+- `ruff.flake8-bugbear` → [`ruff.lint.flake8-bugbear`](https://docs.astral.sh//ruff/settings/#lint_flake8-bugbear)
+- `ruff.flake8-builtins` → [`ruff.lint.flake8-builtins`](https://docs.astral.sh//ruff/settings/#lint_flake8-builtins)
+- `ruff.flake8-comprehensions` → [`ruff.lint.flake8-comprehensions`](https://docs.astral.sh//ruff/settings/#lint_flake8-comprehensions)
+- `ruff.flake8-copyright` → [`ruff.lint.flake8-copyright`](https://docs.astral.sh//ruff/settings/#lint_flake8-copyright)
+- `ruff.flake8-errmsg` → [`ruff.lint.flake8-errmsg`](https://docs.astral.sh//ruff/settings/#lint_flake8-errmsg)
+- `ruff.flake8-gettext` → [`ruff.lint.flake8-gettext`](https://docs.astral.sh//ruff/settings/#lint_flake8-gettext)
+- `ruff.flake8-implicit-str-concat` → [`ruff.lint.flake8-implicit-str-concat`](https://docs.astral.sh//ruff/settings/#lint_flake8-implicit-str-concat)
+- `ruff.flake8-import-conventions` → [`ruff.lint.flake8-import-conventions`](https://docs.astral.sh//ruff/settings/#lint_flake8-import-conventions)
+- `ruff.flake8-pytest-style` → [`ruff.lint.flake8-pytest-style`](https://docs.astral.sh//ruff/settings/#lint_flake8-pytest-style)
+- `ruff.flake8-quotes` → [`ruff.lint.flake8-quotes`](https://docs.astral.sh//ruff/settings/#lint_flake8-quotes)
+- `ruff.flake8-self` → [`ruff.lint.flake8-self`](https://docs.astral.sh//ruff/settings/#lint_flake8-self)
+- `ruff.flake8-tidy-imports` → [`ruff.lint.flake8-tidy-imports`](https://docs.astral.sh//ruff/settings/#lint_flake8-tidy-imports)
+- `ruff.flake8-type-checking` → [`ruff.lint.flake8-type-checking`](https://docs.astral.sh//ruff/settings/#lint_flake8-type-checking)
+- `ruff.flake8-unused-arguments` → [`ruff.lint.flake8-unused-arguments`](https://docs.astral.sh//ruff/settings/#lint_flake8-unused-arguments)
+- `ruff.ignore` → [`ruff.lint.ignore`](https://docs.astral.sh//ruff/settings/#lint_ignore)
+- `ruff.ignore-init-module-imports` → [`ruff.lint.ignore-init-module-imports`](https://docs.astral.sh//ruff/settings/#lint_ignore-init-module-imports)
+- `ruff.isort` → [`ruff.lint.isort`](https://docs.astral.sh//ruff/settings/#lint_isort)
+- `ruff.logger-objects` → [`ruff.lint.logger-objects`](https://docs.astral.sh//ruff/settings/#lint_logger-objects)
+- `ruff.mccabe` → [`ruff.lint.mccabe`](https://docs.astral.sh//ruff/settings/#lint_mccabe)
+- `ruff.pep8-naming` → [`ruff.lint.pep8-naming`](https://docs.astral.sh//ruff/settings/#lint_pep8-naming)
+- `ruff.per-file-ignores` → [`ruff.lint.per-file-ignores`](https://docs.astral.sh//ruff/settings/#lint_per-file-ignores)
+- `ruff.pycodestyle` → [`ruff.lint.pycodestyle`](https://docs.astral.sh//ruff/settings/#lint_pycodestyle)
+- `ruff.pydocstyle` → [`ruff.lint.pydocstyle`](https://docs.astral.sh//ruff/settings/#lint_pydocstyle)
+- `ruff.pyflakes` → [`ruff.lint.pyflakes`](https://docs.astral.sh//ruff/settings/#lint_pyflakes)
+- `ruff.pylint` → [`ruff.lint.pylint`](https://docs.astral.sh//ruff/settings/#lint_pylint)
+- `ruff.pyupgrade` → [`ruff.lint.pyupgrade`](https://docs.astral.sh//ruff/settings/#lint_pyupgrade)
+- `ruff.select` → [`ruff.lint.select`](https://docs.astral.sh//ruff/settings/#lint_select)
+- `ruff.task-tags` → [`ruff.lint.task-tags`](https://docs.astral.sh//ruff/settings/#lint_task-tags)
+- `ruff.typing-modules` → [`ruff.lint.typing-modules`](https://docs.astral.sh//ruff/settings/#lint_typing-modules)
+- `ruff.unfixable` → [`ruff.lint.unfixable`](https://docs.astral.sh//ruff/settings/#lint_unfixable)
+
+### Remapped rules
+
+The following rules have been remapped to new codes:
+
+- [`raise-without-from-inside-except`](https://docs.astral.sh/ruff/rules/raise-without-from-inside-except/): `TRY200` to `B904`
+- [`suspicious-eval-usage`](https://docs.astral.sh/ruff/rules/suspicious-eval-usage/): `PGH001` to `S307`
+- [`logging-warn`](https://docs.astral.sh/ruff/rules/logging-warn/): `PGH002` to `G010`
+- [`static-key-dict-comprehension`](https://docs.astral.sh/ruff/rules/static-key-dict-comprehension): `RUF011` to `B035`
+- [`runtime-string-union`](https://docs.astral.sh/ruff/rules/runtime-string-union): `TCH006` to `TCH010`
+
+### Stabilizations
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`trio-timeout-without-await`](https://docs.astral.sh/ruff/rules/trio-timeout-without-await) (`TRIO100`)
+- [`trio-sync-call`](https://docs.astral.sh/ruff/rules/trio-sync-call) (`TRIO105`)
+- [`trio-async-function-with-timeout`](https://docs.astral.sh/ruff/rules/trio-async-function-with-timeout) (`TRIO109`)
+- [`trio-unneeded-sleep`](https://docs.astral.sh/ruff/rules/trio-unneeded-sleep) (`TRIO110`)
+- [`trio-zero-sleep-call`](https://docs.astral.sh/ruff/rules/trio-zero-sleep-call) (`TRIO115`)
+- [`unnecessary-escaped-quote`](https://docs.astral.sh/ruff/rules/unnecessary-escaped-quote) (`Q004`)
+- [`enumerate-for-loop`](https://docs.astral.sh/ruff/rules/enumerate-for-loop) (`SIM113`)
+- [`zip-dict-keys-and-values`](https://docs.astral.sh/ruff/rules/zip-dict-keys-and-values) (`SIM911`)
+- [`timeout-error-alias`](https://docs.astral.sh/ruff/rules/timeout-error-alias) (`UP041`)
+- [`flask-debug-true`](https://docs.astral.sh/ruff/rules/flask-debug-true) (`S201`)
+- [`tarfile-unsafe-members`](https://docs.astral.sh/ruff/rules/tarfile-unsafe-members) (`S202`)
+- [`ssl-insecure-version`](https://docs.astral.sh/ruff/rules/ssl-insecure-version) (`S502`)
+- [`ssl-with-bad-defaults`](https://docs.astral.sh/ruff/rules/ssl-with-bad-defaults) (`S503`)
+- [`ssl-with-no-version`](https://docs.astral.sh/ruff/rules/ssl-with-no-version) (`S504`)
+- [`weak-cryptographic-key`](https://docs.astral.sh/ruff/rules/weak-cryptographic-key) (`S505`)
+- [`ssh-no-host-key-verification`](https://docs.astral.sh/ruff/rules/ssh-no-host-key-verification) (`S507`)
+- [`django-raw-sql`](https://docs.astral.sh/ruff/rules/django-raw-sql) (`S611`)
+- [`mako-templates`](https://docs.astral.sh/ruff/rules/mako-templates) (`S702`)
+- [`generator-return-from-iter-method`](https://docs.astral.sh/ruff/rules/generator-return-from-iter-method) (`PYI058`)
+- [`runtime-string-union`](https://docs.astral.sh/ruff/rules/runtime-string-union) (`TCH006`)
+- [`numpy2-deprecation`](https://docs.astral.sh/ruff/rules/numpy2-deprecation) (`NPY201`)
+- [`quadratic-list-summation`](https://docs.astral.sh/ruff/rules/quadratic-list-summation) (`RUF017`)
+- [`assignment-in-assert`](https://docs.astral.sh/ruff/rules/assignment-in-assert) (`RUF018`)
+- [`unnecessary-key-check`](https://docs.astral.sh/ruff/rules/unnecessary-key-check) (`RUF019`)
+- [`never-union`](https://docs.astral.sh/ruff/rules/never-union) (`RUF020`)
+- [`direct-logger-instantiation`](https://docs.astral.sh/ruff/rules/direct-logger-instantiation) (`LOG001`)
+- [`invalid-get-logger-argument`](https://docs.astral.sh/ruff/rules/invalid-get-logger-argument) (`LOG002`)
+- [`exception-without-exc-info`](https://docs.astral.sh/ruff/rules/exception-without-exc-info) (`LOG007`)
+- [`undocumented-warn`](https://docs.astral.sh/ruff/rules/undocumented-warn) (`LOG009`)
+
+Fixes for the following rules have been stabilized and are now available without preview:
+
+- [`triple-single-quotes`](https://docs.astral.sh/ruff/rules/triple-single-quotes) (`D300`)
+- [`non-pep604-annotation`](https://docs.astral.sh/ruff/rules/non-pep604-annotation) (`UP007`)
+- [`dict-get-with-none-default`](https://docs.astral.sh/ruff/rules/dict-get-with-none-default) (`SIM910`)
+- [`in-dict-keys`](https://docs.astral.sh/ruff/rules/in-dict-keys) (`SIM118`)
+- [`collapsible-else-if`](https://docs.astral.sh/ruff/rules/collapsible-else-if) (`PLR5501`)
+- [`if-with-same-arms`](https://docs.astral.sh/ruff/rules/if-with-same-arms) (`SIM114`)
+- [`useless-else-on-loop`](https://docs.astral.sh/ruff/rules/useless-else-on-loop) (`PLW0120`)
+- [`unnecessary-literal-union`](https://docs.astral.sh/ruff/rules/unnecessary-literal-union) (`PYI030`)
+- [`unnecessary-spread`](https://docs.astral.sh/ruff/rules/unnecessary-spread) (`PIE800`)
+- [`error-instead-of-exception`](https://docs.astral.sh/ruff/rules/error-instead-of-exception) (`TRY400`)
+- [`redefined-while-unused`](https://docs.astral.sh/ruff/rules/redefined-while-unused) (`F811`)
+- [`duplicate-value`](https://docs.astral.sh/ruff/rules/duplicate-value) (`B033`)
+- [`multiple-imports-on-one-line`](https://docs.astral.sh/ruff/rules/multiple-imports-on-one-line) (`E401`)
+- [`non-pep585-annotation`](https://docs.astral.sh/ruff/rules/non-pep585-annotation) (`UP006`)
+
+Fixes for the following rules have been promoted from unsafe to safe:
+
+- [`unaliased-collections-abc-set-import`](https://docs.astral.sh/ruff/rules/unaliased-collections-abc-set-import) (`PYI025`)
+
+The following behaviors have been stabilized:
+
+- [`module-import-not-at-top-of-file`](https://docs.astral.sh/ruff/rules/module-import-not-at-top-of-file/) (`E402`) allows `sys.path` modifications between imports
+- [`reimplemented-container-builtin`](https://docs.astral.sh/ruff/rules/reimplemented-container-builtin/) (`PIE807`) includes lambdas that can be replaced with `dict`
+- [`unnecessary-placeholder`](https://docs.astral.sh/ruff/rules/unnecessary-placeholder/) (`PIE790`) applies to unnecessary ellipses (`...`)
+- [`if-else-block-instead-of-dict-get`](https://docs.astral.sh/ruff/rules/if-else-block-instead-of-dict-get/) (`SIM401`) applies to `if-else` expressions
+
+### Preview features
+
+- \[`refurb`\] Implement `metaclass_abcmeta` (`FURB180`) ([#9658](https://github.com/astral-sh/ruff/pull/9658))
+- Implement `blank_line_after_nested_stub_class` preview style ([#9155](https://github.com/astral-sh/ruff/pull/9155))
+- The preview rule [`and-or-ternary`](https://docs.astral.sh/ruff/rules/and-or-ternary) (`PLR1706`) was removed
+
+### Bug fixes
+
+- \[`flake8-async`\] Take `pathlib.Path` into account when analyzing async functions ([#9703](https://github.com/astral-sh/ruff/pull/9703))
+- \[`flake8-return`\] - fix indentation syntax error (`RET505`) ([#9705](https://github.com/astral-sh/ruff/pull/9705))
+- Detect multi-statement lines in else removal ([#9748](https://github.com/astral-sh/ruff/pull/9748))
+- `RUF022`, `RUF023`: never add two trailing commas to the end of a sequence ([#9698](https://github.com/astral-sh/ruff/pull/9698))
+- `RUF023`: Don't sort `__match_args__`, only `__slots__` ([#9724](https://github.com/astral-sh/ruff/pull/9724))
+- \[`flake8-simplify`\] - Fix syntax error in autofix (`SIM114`) ([#9704](https://github.com/astral-sh/ruff/pull/9704))
+- \[`pylint`\] Show verbatim constant in `magic-value-comparison` (`PLR2004`) ([#9694](https://github.com/astral-sh/ruff/pull/9694))
+- Removing trailing whitespace inside multiline strings is unsafe ([#9744](https://github.com/astral-sh/ruff/pull/9744))
+- Support `IfExp` with dual string arms in `invalid-envvar-default` ([#9734](https://github.com/astral-sh/ruff/pull/9734))
+- \[`pylint`\] Add `__mro_entries__` to known dunder methods (`PLW3201`) ([#9706](https://github.com/astral-sh/ruff/pull/9706))
+
+### Documentation
+
+- Removed rules are now retained in the documentation ([#9691](https://github.com/astral-sh/ruff/pull/9691))
+- Deprecated rules are now indicated in the documentation ([#9689](https://github.com/astral-sh/ruff/pull/9689))
+
+## 0.2.1
+
+This release includes support for range formatting (i.e., the ability to format specific lines
+within a source file).
+
+### Preview features
+
+- \[`refurb`\] Implement `missing-f-string-syntax` (`RUF027`) ([#9728](https://github.com/astral-sh/ruff/pull/9728))
+- Format module-level docstrings ([#9725](https://github.com/astral-sh/ruff/pull/9725))
+
+### Formatter
+
+- Add `--range` option to `ruff format` ([#9733](https://github.com/astral-sh/ruff/pull/9733))
+- Don't trim last empty line in docstrings ([#9813](https://github.com/astral-sh/ruff/pull/9813))
+
+### Bug fixes
+
+- Skip empty lines when determining base indentation ([#9795](https://github.com/astral-sh/ruff/pull/9795))
+- Drop `__get__` and `__set__` from `unnecessary-dunder-call` ([#9791](https://github.com/astral-sh/ruff/pull/9791))
+- Respect generic `Protocol` in ellipsis removal ([#9841](https://github.com/astral-sh/ruff/pull/9841))
+- Revert "Use publicly available Apple Silicon runners (#9726)" ([#9834](https://github.com/astral-sh/ruff/pull/9834))
+
+### Performance
+
+- Skip LibCST parsing for standard dedent adjustments ([#9769](https://github.com/astral-sh/ruff/pull/9769))
+- Remove CST-based fixer for `C408` ([#9822](https://github.com/astral-sh/ruff/pull/9822))
+- Add our own ignored-names abstractions ([#9802](https://github.com/astral-sh/ruff/pull/9802))
+- Remove CST-based fixers for `C400`, `C401`, `C410`, and `C418` ([#9819](https://github.com/astral-sh/ruff/pull/9819))
+- Use `AhoCorasick` to speed up quote match ([#9773](https://github.com/astral-sh/ruff/pull/9773))
+- Remove CST-based fixers for `C405` and `C409` ([#9821](https://github.com/astral-sh/ruff/pull/9821))
+- Add fast-path for comment detection ([#9808](https://github.com/astral-sh/ruff/pull/9808))
+- Invert order of checks in `zero-sleep-call` ([#9766](https://github.com/astral-sh/ruff/pull/9766))
+- Short-circuit typing matches based on imports ([#9800](https://github.com/astral-sh/ruff/pull/9800))
+- Run dunder method rule on methods directly ([#9815](https://github.com/astral-sh/ruff/pull/9815))
+- Track top-level module imports in the semantic model ([#9775](https://github.com/astral-sh/ruff/pull/9775))
+- Slight speed-up for lowercase and uppercase identifier checks ([#9798](https://github.com/astral-sh/ruff/pull/9798))
+- Remove LibCST-based fixer for `C403` ([#9818](https://github.com/astral-sh/ruff/pull/9818))
+
+### Documentation
+
+- Update `max-pos-args` example to `max-positional-args` ([#9797](https://github.com/astral-sh/ruff/pull/9797))
+- Fixed example code in `weak_cryptographic_key.rs` ([#9774](https://github.com/astral-sh/ruff/pull/9774))
+- Fix references to deprecated `ANN` rules in changelog ([#9771](https://github.com/astral-sh/ruff/pull/9771))
+- Fix default for `max-positional-args` ([#9838](https://github.com/astral-sh/ruff/pull/9838))
+
+## 0.2.2
+
+Highlights include:
+
+- Initial support formatting f-strings (in `--preview`).
+- Support for overriding arbitrary configuration options via the CLI through an expanded `--config` argument (e.g., `--config "lint.isort.combine-as-imports=false"`).
+- Significant performance improvements in Ruff's lexer, parser, and lint rules.
+
+### Preview features
+
+- Implement minimal f-string formatting ([#9642](https://github.com/astral-sh/ruff/pull/9642))
+- \[`pycodestyle`\] Add blank line(s) rules (`E301`, `E302`, `E303`, `E304`, `E305`, `E306`) ([#9266](https://github.com/astral-sh/ruff/pull/9266))
+- \[`refurb`\] Implement `readlines_in_for` (`FURB129`) ([#9880](https://github.com/astral-sh/ruff/pull/9880))
+
+### Rule changes
+
+- \[`ruff`\] Ensure closing parentheses for multiline sequences are always on their own line (`RUF022`, `RUF023`) ([#9793](https://github.com/astral-sh/ruff/pull/9793))
+- \[`numpy`\] Add missing deprecation violations (`NPY002`) ([#9862](https://github.com/astral-sh/ruff/pull/9862))
+- \[`flake8-bandit`\] Detect `mark_safe` usages in decorators ([#9887](https://github.com/astral-sh/ruff/pull/9887))
+- \[`ruff`\] Expand `asyncio-dangling-task` (`RUF006`) to include `new_event_loop` ([#9976](https://github.com/astral-sh/ruff/pull/9976))
+- \[`flake8-pyi`\] Ignore 'unused' private type dicts in class scopes ([#9952](https://github.com/astral-sh/ruff/pull/9952))
+
+### Formatter
+
+- Docstring formatting: Preserve tab indentation when using `indent-style=tabs` ([#9915](https://github.com/astral-sh/ruff/pull/9915))
+- Disable top-level docstring formatting for notebooks ([#9957](https://github.com/astral-sh/ruff/pull/9957))
+- Stabilize quote-style's `preserve` mode ([#9922](https://github.com/astral-sh/ruff/pull/9922))
+
+### CLI
+
+- Allow arbitrary configuration options to be overridden via the CLI ([#9599](https://github.com/astral-sh/ruff/pull/9599))
+
+### Bug fixes
+
+- Make `show-settings` filters directory-agnostic ([#9866](https://github.com/astral-sh/ruff/pull/9866))
+- Respect duplicates when rewriting type aliases ([#9905](https://github.com/astral-sh/ruff/pull/9905))
+- Respect tuple assignments in typing analyzer ([#9969](https://github.com/astral-sh/ruff/pull/9969))
+- Use atomic write when persisting cache ([#9981](https://github.com/astral-sh/ruff/pull/9981))
+- Use non-parenthesized range for `DebugText` ([#9953](https://github.com/astral-sh/ruff/pull/9953))
+- \[`flake8-simplify`\] Avoid false positive with `async` for loops (`SIM113`) ([#9996](https://github.com/astral-sh/ruff/pull/9996))
+- \[`flake8-trio`\] Respect `async with` in `timeout-without-await` ([#9859](https://github.com/astral-sh/ruff/pull/9859))
+- \[`perflint`\] Catch a wider range of mutations in `PERF101` ([#9955](https://github.com/astral-sh/ruff/pull/9955))
+- \[`pycodestyle`\] Fix `E30X` panics on blank lines with trailing white spaces ([#9907](https://github.com/astral-sh/ruff/pull/9907))
+- \[`pydocstyle`\] Allow using `parameters` as a subsection header (`D405`) ([#9894](https://github.com/astral-sh/ruff/pull/9894))
+- \[`pydocstyle`\] Fix blank-line docstring rules for module-level docstrings ([#9878](https://github.com/astral-sh/ruff/pull/9878))
+- \[`pylint`\] Accept 0.0 and 1.0 as common magic values (`PLR2004`) ([#9964](https://github.com/astral-sh/ruff/pull/9964))
+- \[`pylint`\] Avoid suggesting set rewrites for non-hashable types ([#9956](https://github.com/astral-sh/ruff/pull/9956))
+- \[`ruff`\] Avoid false negatives with string literals inside of method calls (`RUF027`) ([#9865](https://github.com/astral-sh/ruff/pull/9865))
+- \[`ruff`\] Fix panic on with f-string detection (`RUF027`) ([#9990](https://github.com/astral-sh/ruff/pull/9990))
+- \[`ruff`\] Ignore builtins when detecting missing f-strings ([#9849](https://github.com/astral-sh/ruff/pull/9849))
+
+### Performance
+
+- Use `memchr` for string lexing ([#9888](https://github.com/astral-sh/ruff/pull/9888))
+- Use `memchr` for tab-indentation detection ([#9853](https://github.com/astral-sh/ruff/pull/9853))
+- Reduce `Result<Tok, LexicalError>` size by using `Box<str>` instead of `String` ([#9885](https://github.com/astral-sh/ruff/pull/9885))
+- Reduce size of `Expr` from 80 to 64 bytes ([#9900](https://github.com/astral-sh/ruff/pull/9900))
+- Improve trailing comma rule performance ([#9867](https://github.com/astral-sh/ruff/pull/9867))
+- Remove unnecessary string cloning from the parser ([#9884](https://github.com/astral-sh/ruff/pull/9884))

changelogs/0.3.x.md

@@ -0,0 +1,308 @@
+# Changelog 0.3.x
+
+## 0.3.0
+
+This release introduces the new Ruff formatter 2024.2 style and adds a new lint rule to
+detect invalid formatter suppression comments.
+
+### Preview features
+
+- \[`flake8-bandit`\] Remove suspicious-lxml-import (`S410`) ([#10154](https://github.com/astral-sh/ruff/pull/10154))
+- \[`pycodestyle`\] Allow `os.environ` modifications between imports (`E402`) ([#10066](https://github.com/astral-sh/ruff/pull/10066))
+- \[`pycodestyle`\] Don't warn about a single whitespace character before a comma in a tuple (`E203`) ([#10094](https://github.com/astral-sh/ruff/pull/10094))
+
+### Rule changes
+
+- \[`eradicate`\] Detect commented out `case` statements (`ERA001`) ([#10055](https://github.com/astral-sh/ruff/pull/10055))
+- \[`eradicate`\] Detect single-line code for `try:`, `except:`, etc. (`ERA001`) ([#10057](https://github.com/astral-sh/ruff/pull/10057))
+- \[`flake8-boolean-trap`\] Allow boolean positionals in `__post_init__` ([#10027](https://github.com/astral-sh/ruff/pull/10027))
+- \[`flake8-copyright`\] Allow © in copyright notices ([#10065](https://github.com/astral-sh/ruff/pull/10065))
+- \[`isort`\]: Use one blank line after imports in typing stub files ([#9971](https://github.com/astral-sh/ruff/pull/9971))
+- \[`pylint`\] New Rule `dict-iter-missing-items` (`PLE1141`) ([#9845](https://github.com/astral-sh/ruff/pull/9845))
+- \[`pylint`\] Ignore `sys.version` and `sys.platform` (`PLR1714`) ([#10054](https://github.com/astral-sh/ruff/pull/10054))
+- \[`pyupgrade`\] Detect literals with unary operators (`UP018`) ([#10060](https://github.com/astral-sh/ruff/pull/10060))
+- \[`ruff`\] Expand rule for `list(iterable).pop(0)` idiom (`RUF015`) ([#10148](https://github.com/astral-sh/ruff/pull/10148))
+
+### Formatter
+
+This release introduces the Ruff 2024.2 style, stabilizing the following changes:
+
+- Prefer splitting the assignment's value over the target or type annotation ([#8943](https://github.com/astral-sh/ruff/pull/8943))
+- Remove blank lines before class docstrings ([#9154](https://github.com/astral-sh/ruff/pull/9154))
+- Wrap multiple context managers in `with` parentheses when targeting Python 3.9 or newer ([#9222](https://github.com/astral-sh/ruff/pull/9222))
+- Add a blank line after nested classes with a dummy body (`...`) in typing stub files ([#9155](https://github.com/astral-sh/ruff/pull/9155))
+- Reduce vertical spacing for classes and functions with a dummy (`...`) body ([#7440](https://github.com/astral-sh/ruff/issues/7440), [#9240](https://github.com/astral-sh/ruff/pull/9240))
+- Add a blank line after the module docstring ([#8283](https://github.com/astral-sh/ruff/pull/8283))
+- Parenthesize long type hints in assignments ([#9210](https://github.com/astral-sh/ruff/pull/9210))
+- Preserve indent for single multiline-string call-expressions ([#9673](https://github.com/astral-sh/ruff/pull/9637))
+- Normalize hex escape and unicode escape sequences ([#9280](https://github.com/astral-sh/ruff/pull/9280))
+- Format module docstrings ([#9725](https://github.com/astral-sh/ruff/pull/9725))
+
+### CLI
+
+- Explicitly disallow `extend` as part of a `--config` flag ([#10135](https://github.com/astral-sh/ruff/pull/10135))
+- Remove `build` from the default exclusion list ([#10093](https://github.com/astral-sh/ruff/pull/10093))
+- Deprecate `ruff <path>`, `ruff --explain`, `ruff --clean`, and `ruff --generate-shell-completion` in favor of `ruff check <path>`, `ruff rule`, `ruff clean`, and `ruff generate-shell-completion` ([#10169](https://github.com/astral-sh/ruff/pull/10169))
+- Remove the deprecated CLI option `--format` from `ruff rule` and `ruff linter` ([#10170](https://github.com/astral-sh/ruff/pull/10170))
+
+### Bug fixes
+
+- \[`flake8-bugbear`\] Avoid adding default initializers to stubs (`B006`) ([#10152](https://github.com/astral-sh/ruff/pull/10152))
+- \[`flake8-type-checking`\] Respect runtime-required decorators for function signatures ([#10091](https://github.com/astral-sh/ruff/pull/10091))
+- \[`pycodestyle`\] Mark fixes overlapping with a multiline string as unsafe (`W293`) ([#10049](https://github.com/astral-sh/ruff/pull/10049))
+- \[`pydocstyle`\] Trim whitespace when removing blank lines after section (`D413`) ([#10162](https://github.com/astral-sh/ruff/pull/10162))
+- \[`pylint`\] Delete entire statement, including semicolons (`PLR0203`) ([#10074](https://github.com/astral-sh/ruff/pull/10074))
+- \[`ruff`\] Avoid f-string false positives in `gettext` calls (`RUF027`) ([#10118](https://github.com/astral-sh/ruff/pull/10118))
+- Fix `ruff` crashing on PowerPC systems because of too small page size ([#10080](https://github.com/astral-sh/ruff/pull/10080))
+
+### Performance
+
+- Add cold attribute to less likely printer queue branches in the formatter ([#10121](https://github.com/astral-sh/ruff/pull/10121))
+- Skip unnecessary string normalization in the formatter ([#10116](https://github.com/astral-sh/ruff/pull/10116))
+
+### Documentation
+
+- Remove "Beta" Label from formatter documentation ([#10144](https://github.com/astral-sh/ruff/pull/10144))
+- `line-length` option: fix link to `pycodestyle.max-line-length` ([#10136](https://github.com/astral-sh/ruff/pull/10136))
+
+## 0.3.1
+
+### Preview features
+
+- \[`pycodestyle`\] Fix E301 not triggering on decorated methods. ([#10117](https://github.com/astral-sh/ruff/pull/10117))
+- \[`pycodestyle`\] Respect `isort` settings in blank line rules (`E3*`) ([#10096](https://github.com/astral-sh/ruff/pull/10096))
+- \[`pycodestyle`\] Make blank lines in typing stub files optional (`E3*`) ([#10098](https://github.com/astral-sh/ruff/pull/10098))
+- \[`pylint`\] Implement `singledispatch-method` (`E1519`) ([#10140](https://github.com/astral-sh/ruff/pull/10140))
+- \[`pylint`\] Implement `useless-exception-statement` (`W0133`) ([#10176](https://github.com/astral-sh/ruff/pull/10176))
+
+### Rule changes
+
+- \[`flake8-debugger`\] Check for use of `debugpy` and `ptvsd` debug modules (#10177) ([#10194](https://github.com/astral-sh/ruff/pull/10194))
+- \[`pyupgrade`\] Generate diagnostic for all valid f-string conversions regardless of line length (`UP032`) ([#10238](https://github.com/astral-sh/ruff/pull/10238))
+- \[`pep8_naming`\] Add fixes for `N804` and `N805` ([#10215](https://github.com/astral-sh/ruff/pull/10215))
+
+### CLI
+
+- Colorize the output of `ruff format --diff` ([#10110](https://github.com/astral-sh/ruff/pull/10110))
+- Make `--config` and `--isolated` global flags ([#10150](https://github.com/astral-sh/ruff/pull/10150))
+- Correctly expand tildes and environment variables in paths passed to `--config` ([#10219](https://github.com/astral-sh/ruff/pull/10219))
+
+### Configuration
+
+- Accept a PEP 440 version specifier for `required-version` ([#10216](https://github.com/astral-sh/ruff/pull/10216))
+- Implement isort's `default-section` setting ([#10149](https://github.com/astral-sh/ruff/pull/10149))
+
+### Bug fixes
+
+- Remove trailing space from `CapWords` message ([#10220](https://github.com/astral-sh/ruff/pull/10220))
+- Respect external codes in file-level exemptions ([#10203](https://github.com/astral-sh/ruff/pull/10203))
+- \[`flake8-raise`\] Avoid false-positives for parens-on-raise with `future.exception()` (`RSE102`) ([#10206](https://github.com/astral-sh/ruff/pull/10206))
+- \[`pylint`\] Add fix for unary expressions in `PLC2801` ([#9587](https://github.com/astral-sh/ruff/pull/9587))
+- \[`ruff`\] Fix RUF028 not allowing `# fmt: skip` on match cases ([#10178](https://github.com/astral-sh/ruff/pull/10178))
+
+## 0.3.2
+
+### Preview features
+
+- Improve single-`with` item formatting for Python 3.8 or older ([#10276](https://github.com/astral-sh/ruff/pull/10276))
+
+### Rule changes
+
+- \[`pyupgrade`\] Allow fixes for f-string rule regardless of line length (`UP032`) ([#10263](https://github.com/astral-sh/ruff/pull/10263))
+- \[`pycodestyle`\] Include actual conditions in E712 diagnostics ([#10254](https://github.com/astral-sh/ruff/pull/10254))
+
+### Bug fixes
+
+- Fix trailing kwargs end of line comment after slash ([#10297](https://github.com/astral-sh/ruff/pull/10297))
+- Fix unstable `with` items formatting ([#10274](https://github.com/astral-sh/ruff/pull/10274))
+- Avoid repeating function calls in f-string conversions ([#10265](https://github.com/astral-sh/ruff/pull/10265))
+- Fix E203 false positive for slices in format strings ([#10280](https://github.com/astral-sh/ruff/pull/10280))
+- Fix incorrect `Parameter` range for `*args` and `**kwargs` ([#10283](https://github.com/astral-sh/ruff/pull/10283))
+- Treat `typing.Annotated` subscripts as type definitions ([#10285](https://github.com/astral-sh/ruff/pull/10285))
+
+## 0.3.3
+
+### Preview features
+
+- \[`flake8-bandit`\]: Implement `S610` rule ([#10316](https://github.com/astral-sh/ruff/pull/10316))
+- \[`pycodestyle`\] Implement `blank-line-at-end-of-file` (`W391`) ([#10243](https://github.com/astral-sh/ruff/pull/10243))
+- \[`pycodestyle`\] Implement `redundant-backslash` (`E502`) ([#10292](https://github.com/astral-sh/ruff/pull/10292))
+- \[`pylint`\] - implement `redeclared-assigned-name` (`W0128`) ([#9268](https://github.com/astral-sh/ruff/pull/9268))
+
+### Rule changes
+
+- \[`flake8_comprehensions`\] Handled special case for `C400` which also matches `C416` ([#10419](https://github.com/astral-sh/ruff/pull/10419))
+- \[`flake8-bandit`\] Implement upstream updates for `S311`, `S324` and `S605` ([#10313](https://github.com/astral-sh/ruff/pull/10313))
+- \[`pyflakes`\] Remove `F401` fix for `__init__` imports by default and allow opt-in to unsafe fix ([#10365](https://github.com/astral-sh/ruff/pull/10365))
+- \[`pylint`\] Implement `invalid-bool-return-type` (`E304`) ([#10377](https://github.com/astral-sh/ruff/pull/10377))
+- \[`pylint`\] Include builtin warnings in useless-exception-statement (`PLW0133`) ([#10394](https://github.com/astral-sh/ruff/pull/10394))
+
+### CLI
+
+- Add message on success to `ruff check` ([#8631](https://github.com/astral-sh/ruff/pull/8631))
+
+### Bug fixes
+
+- \[`PIE970`\] Allow trailing ellipsis in `typing.TYPE_CHECKING` ([#10413](https://github.com/astral-sh/ruff/pull/10413))
+- Avoid `TRIO115` if the argument is a variable ([#10376](https://github.com/astral-sh/ruff/pull/10376))
+- \[`F811`\] Avoid removing shadowed imports that point to different symbols ([#10387](https://github.com/astral-sh/ruff/pull/10387))
+- Fix `F821` and `F822` false positives in `.pyi` files ([#10341](https://github.com/astral-sh/ruff/pull/10341))
+- Fix `F821` false negatives in `.py` files when `from __future__ import annotations` is active ([#10362](https://github.com/astral-sh/ruff/pull/10362))
+- Fix case where `Indexer` fails to identify continuation preceded by newline #10351 ([#10354](https://github.com/astral-sh/ruff/pull/10354))
+- Sort hash maps in `Settings` display ([#10370](https://github.com/astral-sh/ruff/pull/10370))
+- Track conditional deletions in the semantic model ([#10415](https://github.com/astral-sh/ruff/pull/10415))
+- \[`C413`\] Wrap expressions in parentheses when negating ([#10346](https://github.com/astral-sh/ruff/pull/10346))
+- \[`pycodestyle`\] Do not ignore lines before the first logical line in blank lines rules. ([#10382](https://github.com/astral-sh/ruff/pull/10382))
+- \[`pycodestyle`\] Do not trigger `E225` and `E275` when the next token is a ')' ([#10315](https://github.com/astral-sh/ruff/pull/10315))
+- \[`pylint`\] Avoid false-positive slot non-assignment for `__dict__` (`PLE0237`) ([#10348](https://github.com/astral-sh/ruff/pull/10348))
+- Gate f-string struct size test for Rustc < 1.76 ([#10371](https://github.com/astral-sh/ruff/pull/10371))
+
+### Documentation
+
+- Use `ruff.toml` format in README ([#10393](https://github.com/astral-sh/ruff/pull/10393))
+- \[`RUF008`\] Make it clearer that a mutable default in a dataclass is only valid if it is typed as a ClassVar ([#10395](https://github.com/astral-sh/ruff/pull/10395))
+- \[`pylint`\] Extend docs and test in `invalid-str-return-type` (`E307`) ([#10400](https://github.com/astral-sh/ruff/pull/10400))
+- Remove `.` from `check` and `format` commands ([#10217](https://github.com/astral-sh/ruff/pull/10217))
+
+## 0.3.4
+
+### Preview features
+
+- \[`flake8-simplify`\] Detect implicit `else` cases in `needless-bool` (`SIM103`) ([#10414](https://github.com/astral-sh/ruff/pull/10414))
+- \[`pylint`\] Implement `nan-comparison` (`PLW0117`) ([#10401](https://github.com/astral-sh/ruff/pull/10401))
+- \[`pylint`\] Implement `nonlocal-and-global` (`E115`) ([#10407](https://github.com/astral-sh/ruff/pull/10407))
+- \[`pylint`\] Implement `singledispatchmethod-function` (`PLE5120`) ([#10428](https://github.com/astral-sh/ruff/pull/10428))
+- \[`refurb`\] Implement `list-reverse-copy` (`FURB187`) ([#10212](https://github.com/astral-sh/ruff/pull/10212))
+
+### Rule changes
+
+- \[`flake8-pytest-style`\] Add automatic fix for `pytest-parametrize-values-wrong-type` (`PT007`) ([#10461](https://github.com/astral-sh/ruff/pull/10461))
+- \[`pycodestyle`\] Allow SPDX license headers to exceed the line length (`E501`) ([#10481](https://github.com/astral-sh/ruff/pull/10481))
+
+### Formatter
+
+- Fix unstable formatting for trailing subscript end-of-line comment ([#10492](https://github.com/astral-sh/ruff/pull/10492))
+
+### Bug fixes
+
+- Avoid code comment detection in PEP 723 script tags ([#10464](https://github.com/astral-sh/ruff/pull/10464))
+- Avoid incorrect tuple transformation in single-element case (`C409`) ([#10491](https://github.com/astral-sh/ruff/pull/10491))
+- Bug fix: Prevent fully defined links [`name`](link) from being reformatted ([#10442](https://github.com/astral-sh/ruff/pull/10442))
+- Consider raw source code for `W605` ([#10480](https://github.com/astral-sh/ruff/pull/10480))
+- Docs: Link inline settings when not part of options section ([#10499](https://github.com/astral-sh/ruff/pull/10499))
+- Don't treat annotations as redefinitions in `.pyi` files ([#10512](https://github.com/astral-sh/ruff/pull/10512))
+- Fix `E231` bug: Inconsistent catch compared to pycodestyle, such as when dict nested in list ([#10469](https://github.com/astral-sh/ruff/pull/10469))
+- Fix pylint upstream categories not showing in docs ([#10441](https://github.com/astral-sh/ruff/pull/10441))
+- Add missing `Options` references to blank line docs ([#10498](https://github.com/astral-sh/ruff/pull/10498))
+- 'Revert "F821: Fix false negatives in .py files when `from __future__ import annotations` is active (#10362)"' ([#10513](https://github.com/astral-sh/ruff/pull/10513))
+- Apply NFKC normalization to unicode identifiers in the lexer ([#10412](https://github.com/astral-sh/ruff/pull/10412))
+- Avoid failures due to non-deterministic binding ordering ([#10478](https://github.com/astral-sh/ruff/pull/10478))
+- \[`flake8-bugbear`\] Allow tuples of exceptions (`B030`) ([#10437](https://github.com/astral-sh/ruff/pull/10437))
+- \[`flake8-quotes`\] Avoid syntax errors due to invalid quotes (`Q000, Q002`) ([#10199](https://github.com/astral-sh/ruff/pull/10199))
+
+## 0.3.5
+
+### Preview features
+
+- \[`pylint`\] Implement `modified-iterating-set` (`E4703`) ([#10473](https://github.com/astral-sh/ruff/pull/10473))
+- \[`refurb`\] Implement `for-loop-set-mutations` (`FURB142`) ([#10583](https://github.com/astral-sh/ruff/pull/10583))
+- \[`refurb`\] Implement `unnecessary-from-float` (`FURB164`) ([#10647](https://github.com/astral-sh/ruff/pull/10647))
+- \[`refurb`\] Implement `verbose-decimal-constructor` (`FURB157`) ([#10533](https://github.com/astral-sh/ruff/pull/10533))
+
+### Rule changes
+
+- \[`flake8-comprehensions`\] Handled special case for `C401` which also matches `C416` ([#10596](https://github.com/astral-sh/ruff/pull/10596))
+- \[`flake8-pyi`\] Mark `unaliased-collections-abc-set-import` fix as "safe" for more cases in stub files (`PYI025`) ([#10547](https://github.com/astral-sh/ruff/pull/10547))
+- \[`numpy`\] Add `row_stack` to NumPy 2.0 migration rule ([#10646](https://github.com/astral-sh/ruff/pull/10646))
+- \[`pycodestyle`\] Allow cell magics before an import (`E402`) ([#10545](https://github.com/astral-sh/ruff/pull/10545))
+- \[`pycodestyle`\] Avoid blank line rules for the first logical line in cell ([#10291](https://github.com/astral-sh/ruff/pull/10291))
+
+### Configuration
+
+- Respected nested namespace packages ([#10541](https://github.com/astral-sh/ruff/pull/10541))
+- \[`flake8-boolean-trap`\] Add setting for user defined allowed boolean trap ([#10531](https://github.com/astral-sh/ruff/pull/10531))
+
+### Bug fixes
+
+- Correctly handle references in `__all__` definitions when renaming symbols in autofixes ([#10527](https://github.com/astral-sh/ruff/pull/10527))
+- Track ranges of names inside `__all__` definitions ([#10525](https://github.com/astral-sh/ruff/pull/10525))
+- \[`flake8-bugbear`\] Avoid false positive for usage after `continue` (`B031`) ([#10539](https://github.com/astral-sh/ruff/pull/10539))
+- \[`flake8-copyright`\] Accept commas in default copyright pattern ([#9498](https://github.com/astral-sh/ruff/pull/9498))
+- \[`flake8-datetimez`\] Allow f-strings with `%z` for `DTZ007` ([#10651](https://github.com/astral-sh/ruff/pull/10651))
+- \[`flake8-pytest-style`\] Fix `PT014` autofix for last item in list ([#10532](https://github.com/astral-sh/ruff/pull/10532))
+- \[`flake8-quotes`\] Ignore `Q000`, `Q001` when string is inside forward ref ([#10585](https://github.com/astral-sh/ruff/pull/10585))
+- \[`isort`\] Always place non-relative imports after relative imports ([#10669](https://github.com/astral-sh/ruff/pull/10669))
+- \[`isort`\] Respect Unicode characters in import sorting ([#10529](https://github.com/astral-sh/ruff/pull/10529))
+- \[`pyflakes`\] Fix F821 false negatives when `from __future__ import annotations` is active (attempt 2) ([#10524](https://github.com/astral-sh/ruff/pull/10524))
+- \[`pyflakes`\] Make `unnecessary-lambda` an always-unsafe fix ([#10668](https://github.com/astral-sh/ruff/pull/10668))
+- \[`pylint`\] Fixed false-positive on the rule `PLW1641` (`eq-without-hash`) ([#10566](https://github.com/astral-sh/ruff/pull/10566))
+- \[`ruff`\] Fix panic in unused `# noqa` removal with multi-byte space (`RUF100`) ([#10682](https://github.com/astral-sh/ruff/pull/10682))
+
+### Documentation
+
+- Add PR title format to `CONTRIBUTING.md` ([#10665](https://github.com/astral-sh/ruff/pull/10665))
+- Fix list markup to include blank lines required ([#10591](https://github.com/astral-sh/ruff/pull/10591))
+- Put `flake8-logging` next to the other flake8 plugins in registry ([#10587](https://github.com/astral-sh/ruff/pull/10587))
+- \[`flake8-bandit`\] Update warning message for rule `S305` to address insecure block cipher mode use ([#10602](https://github.com/astral-sh/ruff/pull/10602))
+- \[`flake8-bugbear`\] Document use of anonymous assignment in `useless-expression` ([#10551](https://github.com/astral-sh/ruff/pull/10551))
+- \[`flake8-datetimez`\] Clarify error messages and docs for `DTZ` rules ([#10621](https://github.com/astral-sh/ruff/pull/10621))
+- \[`pycodestyle`\] Use same before vs. after numbers for `space-around-operator` ([#10640](https://github.com/astral-sh/ruff/pull/10640))
+- \[`ruff`\] Change `quadratic-list-summation` docs to use `iadd` consistently ([#10666](https://github.com/astral-sh/ruff/pull/10666))
+
+## 0.3.6
+
+### Preview features
+
+- \[`pylint`\] Implement `bad-staticmethod-argument` (`PLW0211`) ([#10781](https://github.com/astral-sh/ruff/pull/10781))
+- \[`pylint`\] Implement `if-stmt-min-max` (`PLR1730`, `PLR1731`) ([#10002](https://github.com/astral-sh/ruff/pull/10002))
+- \[`pyupgrade`\] Replace `str,Enum` multiple inheritance with `StrEnum` `UP042` ([#10713](https://github.com/astral-sh/ruff/pull/10713))
+- \[`refurb`\] Implement `if-expr-instead-of-or-operator` (`FURB110`) ([#10687](https://github.com/astral-sh/ruff/pull/10687))
+- \[`refurb`\] Implement `int-on-sliced-str` (`FURB166`) ([#10650](https://github.com/astral-sh/ruff/pull/10650))
+- \[`refurb`\] Implement `write-whole-file` (`FURB103`) ([#10802](https://github.com/astral-sh/ruff/pull/10802))
+- \[`refurb`\] Support `itemgetter` in `reimplemented-operator` (`FURB118`) ([#10526](https://github.com/astral-sh/ruff/pull/10526))
+- \[`flake8_comprehensions`\] Add `sum`/`min`/`max` to unnecessary comprehension check (`C419`) ([#10759](https://github.com/astral-sh/ruff/pull/10759))
+
+### Rule changes
+
+- \[`pydocstyle`\] Require capitalizing docstrings where the first sentence is a single word (`D403`) ([#10776](https://github.com/astral-sh/ruff/pull/10776))
+- \[`pycodestyle`\] Ignore annotated lambdas in class scopes (`E731`) ([#10720](https://github.com/astral-sh/ruff/pull/10720))
+- \[`flake8-pyi`\] Various improvements to PYI034 ([#10807](https://github.com/astral-sh/ruff/pull/10807))
+- \[`flake8-slots`\] Flag subclasses of call-based `typing.NamedTuple`s as well as subclasses of `collections.namedtuple()` (`SLOT002`) ([#10808](https://github.com/astral-sh/ruff/pull/10808))
+- \[`pyflakes`\] Allow forward references in class bases in stub files (`F821`) ([#10779](https://github.com/astral-sh/ruff/pull/10779))
+- \[`pygrep-hooks`\] Improve `blanket-noqa` error message (`PGH004`) ([#10851](https://github.com/astral-sh/ruff/pull/10851))
+
+### CLI
+
+- Support `FORCE_COLOR` env var ([#10839](https://github.com/astral-sh/ruff/pull/10839))
+
+### Configuration
+
+- Support negated patterns in `[extend-]per-file-ignores` ([#10852](https://github.com/astral-sh/ruff/pull/10852))
+
+### Bug fixes
+
+- \[`flake8-import-conventions`\] Accept non-aliased (but correct) import in `unconventional-import-alias` (`ICN001`) ([#10729](https://github.com/astral-sh/ruff/pull/10729))
+- \[`flake8-quotes`\] Add semantic model flag when inside f-string replacement field ([#10766](https://github.com/astral-sh/ruff/pull/10766))
+- \[`pep8-naming`\] Recursively resolve `TypeDicts` for N815 violations ([#10719](https://github.com/astral-sh/ruff/pull/10719))
+- \[`flake8-quotes`\] Respect `Q00*` ignores in `flake8-quotes` rules ([#10728](https://github.com/astral-sh/ruff/pull/10728))
+- \[`flake8-simplify`\] Show negated condition in `needless-bool` diagnostics (`SIM103`) ([#10854](https://github.com/astral-sh/ruff/pull/10854))
+- \[`ruff`\] Use within-scope shadowed bindings in `asyncio-dangling-task` (`RUF006`) ([#10793](https://github.com/astral-sh/ruff/pull/10793))
+- \[`flake8-pytest-style`\] Fix single-tuple conversion in `pytest-parametrize-values-wrong-type` (`PT007`) ([#10862](https://github.com/astral-sh/ruff/pull/10862))
+- \[`flake8-return`\] Ignore assignments to annotated variables in `unnecessary-assign` (`RET504`) ([#10741](https://github.com/astral-sh/ruff/pull/10741))
+- \[`refurb`\] Do not allow any keyword arguments for `read-whole-file` in `rb` mode (`FURB101`) ([#10803](https://github.com/astral-sh/ruff/pull/10803))
+- \[`pylint`\] Don't recommend decorating staticmethods with `@singledispatch` (`PLE1519`, `PLE1520`) ([#10637](https://github.com/astral-sh/ruff/pull/10637))
+- \[`pydocstyle`\] Use section name range for all section-related docstring diagnostics ([#10740](https://github.com/astral-sh/ruff/pull/10740))
+- Respect `# noqa` directives on `__all__` openers ([#10798](https://github.com/astral-sh/ruff/pull/10798))
+
+## 0.3.7
+
+### Preview features
+
+- \[`flake8-bugbear`\] Implement `loop-iterator-mutation` (`B909`) ([#9578](https://github.com/astral-sh/ruff/pull/9578))
+- \[`pylint`\] Implement rule to prefer augmented assignment (`PLR6104`) ([#9932](https://github.com/astral-sh/ruff/pull/9932))
+
+### Bug fixes
+
+- Avoid TOCTOU errors in cache initialization ([#10884](https://github.com/astral-sh/ruff/pull/10884))
+- \[`pylint`\] Recode `nan-comparison` rule to `W0177` ([#10894](https://github.com/astral-sh/ruff/pull/10894))
+- \[`pylint`\] Reverse min-max logic in `if-stmt-min-max` ([#10890](https://github.com/astral-sh/ruff/pull/10890))

changelogs/0.4.x.md

@@ -0,0 +1,415 @@
+# Changelog 0.4.x
+
+## 0.4.0
+
+### A new, hand-written parser
+
+Ruff's new parser is **>2x faster**, which translates to a **20-40% speedup** for all linting and formatting invocations.
+There's a lot to say about this exciting change, so check out the [blog post](https://astral.sh/blog/ruff-v0.4.0) for more details!
+
+See [#10036](https://github.com/astral-sh/ruff/pull/10036) for implementation details.
+
+### A new language server in Rust
+
+With this release, we also want to highlight our new language server. `ruff server` is a Rust-powered language
+server that comes built-in with Ruff. It can be used with any editor that supports the [Language Server Protocol](https://microsoft.github.io/language-server-protocol/) (LSP).
+It uses a multi-threaded, lock-free architecture inspired by `rust-analyzer` and it will open the door for a lot
+of exciting features. It’s also faster than our previous [Python-based language server](https://github.com/astral-sh/ruff-lsp)
+-- but you probably guessed that already.
+
+`ruff server` is only in alpha, but it has a lot of features that you can try out today:
+
+- Lints Python files automatically and shows quick-fixes when available
+- Formats Python files, with support for range formatting
+- Comes with commands for quickly performing actions: `ruff.applyAutofix`, `ruff.applyFormat`, and `ruff.applyOrganizeImports`
+- Supports `source.fixAll` and `source.organizeImports` source actions
+- Automatically reloads your project configuration when you change it
+
+To setup `ruff server` with your editor, refer to the [README.md](https://github.com/astral-sh/ruff/blob/main/crates/ruff_server/README.md).
+
+### Preview features
+
+- \[`pycodestyle`\] Do not trigger `E3` rules on `def`s following a function/method with a dummy body ([#10704](https://github.com/astral-sh/ruff/pull/10704))
+- \[`pylint`\] Implement `invalid-bytes-returned` (`E0308`) ([#10959](https://github.com/astral-sh/ruff/pull/10959))
+- \[`pylint`\] Implement `invalid-length-returned` (`E0303`) ([#10963](https://github.com/astral-sh/ruff/pull/10963))
+- \[`pylint`\] Implement `self-cls-assignment` (`W0642`) ([#9267](https://github.com/astral-sh/ruff/pull/9267))
+- \[`pylint`\] Omit stubs from `invalid-bool` and `invalid-str-return-type` ([#11008](https://github.com/astral-sh/ruff/pull/11008))
+- \[`ruff`\] New rule `unused-async` (`RUF029`) to detect unneeded `async` keywords on functions ([#9966](https://github.com/astral-sh/ruff/pull/9966))
+
+### Rule changes
+
+- \[`flake8-bandit`\] Allow `urllib.request.urlopen` calls with static `Request` argument (`S310`) ([#10964](https://github.com/astral-sh/ruff/pull/10964))
+- \[`flake8-bugbear`\] Treat `raise NotImplemented`-only bodies as stub functions (`B006`) ([#10990](https://github.com/astral-sh/ruff/pull/10990))
+- \[`flake8-slots`\] Respect same-file `Enum` subclasses (`SLOT000`) ([#11006](https://github.com/astral-sh/ruff/pull/11006))
+- \[`pylint`\] Support inverted comparisons (`PLR1730`) ([#10920](https://github.com/astral-sh/ruff/pull/10920))
+
+### Linter
+
+- Improve handling of builtin symbols in linter rules ([#10919](https://github.com/astral-sh/ruff/pull/10919))
+- Improve display of rules in `--show-settings` ([#11003](https://github.com/astral-sh/ruff/pull/11003))
+- Improve inference capabilities of the `BuiltinTypeChecker` ([#10976](https://github.com/astral-sh/ruff/pull/10976))
+- Resolve classes and functions relative to script name ([#10965](https://github.com/astral-sh/ruff/pull/10965))
+- Improve performance of `RuleTable::any_enabled` ([#10971](https://github.com/astral-sh/ruff/pull/10971))
+
+### Server
+
+_This section is devoted to updates for our new language server, written in Rust._
+
+- Enable ruff-specific source actions ([#10916](https://github.com/astral-sh/ruff/pull/10916))
+- Refreshes diagnostics for open files when file configuration is changed ([#10988](https://github.com/astral-sh/ruff/pull/10988))
+- Important errors are now shown as popups ([#10951](https://github.com/astral-sh/ruff/pull/10951))
+- Introduce settings for directly configuring the linter and formatter ([#10984](https://github.com/astral-sh/ruff/pull/10984))
+- Resolve configuration for each document individually ([#10950](https://github.com/astral-sh/ruff/pull/10950))
+- Write a setup guide for Neovim ([#10987](https://github.com/astral-sh/ruff/pull/10987))
+
+### Configuration
+
+- Add `RUFF_OUTPUT_FILE` environment variable support ([#10992](https://github.com/astral-sh/ruff/pull/10992))
+
+### Bug fixes
+
+- Avoid `non-augmented-assignment` for reversed, non-commutative operators (`PLR6104`) ([#10909](https://github.com/astral-sh/ruff/pull/10909))
+- Limit commutative non-augmented-assignments to primitive data types (`PLR6104`) ([#10912](https://github.com/astral-sh/ruff/pull/10912))
+- Respect `per-file-ignores` for `RUF100` on blanket `# noqa` ([#10908](https://github.com/astral-sh/ruff/pull/10908))
+- Consider `if` expression for parenthesized with items parsing ([#11010](https://github.com/astral-sh/ruff/pull/11010))
+- Consider binary expr for parenthesized with items parsing ([#11012](https://github.com/astral-sh/ruff/pull/11012))
+- Reset `FOR_TARGET` context for all kinds of parentheses ([#11009](https://github.com/astral-sh/ruff/pull/11009))
+
+## 0.4.1
+
+### Preview features
+
+- \[`pylint`\] Implement `invalid-hash-returned` (`PLE0309`) ([#10961](https://github.com/astral-sh/ruff/pull/10961))
+- \[`pylint`\] Implement `invalid-index-returned` (`PLE0305`) ([#10962](https://github.com/astral-sh/ruff/pull/10962))
+
+### Bug fixes
+
+- \[`pylint`\] Allow `NoReturn`-like functions for `__str__`, `__len__`, etc. (`PLE0307`) ([#11017](https://github.com/astral-sh/ruff/pull/11017))
+- Parser: Use empty range when there's "gap" in token source ([#11032](https://github.com/astral-sh/ruff/pull/11032))
+- \[`ruff`\] Ignore stub functions in `unused-async` (`RUF029`) ([#11026](https://github.com/astral-sh/ruff/pull/11026))
+- Parser: Expect indented case block instead of match stmt ([#11033](https://github.com/astral-sh/ruff/pull/11033))
+
+## 0.4.2
+
+### Rule changes
+
+- \[`flake8-pyi`\] Allow for overloaded `__exit__` and `__aexit__` definitions (`PYI036`) ([#11057](https://github.com/astral-sh/ruff/pull/11057))
+- \[`pyupgrade`\] Catch usages of `"%s" % var` and provide an unsafe fix (`UP031`) ([#11019](https://github.com/astral-sh/ruff/pull/11019))
+- \[`refurb`\] Implement new rule that suggests min/max over `sorted()` (`FURB192`) ([#10868](https://github.com/astral-sh/ruff/pull/10868))
+
+### Server
+
+- Fix an issue with missing diagnostics for Neovim and Helix ([#11092](https://github.com/astral-sh/ruff/pull/11092))
+- Implement hover documentation for `noqa` codes ([#11096](https://github.com/astral-sh/ruff/pull/11096))
+- Introduce common Ruff configuration options with new server settings ([#11062](https://github.com/astral-sh/ruff/pull/11062))
+
+### Bug fixes
+
+- Use `macos-12` for building release wheels to enable macOS 11 compatibility ([#11146](https://github.com/astral-sh/ruff/pull/11146))
+- \[`flake8-blind-expect`\] Allow raise from in `BLE001` ([#11131](https://github.com/astral-sh/ruff/pull/11131))
+- \[`flake8-pyi`\] Allow simple assignments to `None` in enum class scopes (`PYI026`) ([#11128](https://github.com/astral-sh/ruff/pull/11128))
+- \[`flake8-simplify`\] Avoid raising `SIM911` for non-`zip` attribute calls ([#11126](https://github.com/astral-sh/ruff/pull/11126))
+- \[`refurb`\] Avoid `operator.itemgetter` suggestion for single-item tuple ([#11095](https://github.com/astral-sh/ruff/pull/11095))
+- \[`ruff`\] Respect per-file-ignores for `RUF100` with no other diagnostics ([#11058](https://github.com/astral-sh/ruff/pull/11058))
+- \[`ruff`\] Fix async comprehension false positive (`RUF029`) ([#11070](https://github.com/astral-sh/ruff/pull/11070))
+
+### Documentation
+
+- \[`flake8-bugbear`\] Document explicitly disabling strict zip (`B905`) ([#11040](https://github.com/astral-sh/ruff/pull/11040))
+- \[`flake8-type-checking`\] Mention `lint.typing-modules` in `TCH001`, `TCH002`, and `TCH003` ([#11144](https://github.com/astral-sh/ruff/pull/11144))
+- \[`isort`\] Improve documentation around custom `isort` sections ([#11050](https://github.com/astral-sh/ruff/pull/11050))
+- \[`pylint`\] Fix documentation oversight for `invalid-X-returns` ([#11094](https://github.com/astral-sh/ruff/pull/11094))
+
+### Performance
+
+- Use `matchit` to resolve per-file settings ([#11111](https://github.com/astral-sh/ruff/pull/11111))
+
+## 0.4.3
+
+### Enhancements
+
+- Add support for PEP 696 syntax ([#11120](https://github.com/astral-sh/ruff/pull/11120))
+
+### Preview features
+
+- \[`refurb`\] Use function range for `reimplemented-operator` diagnostics ([#11271](https://github.com/astral-sh/ruff/pull/11271))
+- \[`refurb`\] Ignore methods in `reimplemented-operator` (`FURB118`) ([#11270](https://github.com/astral-sh/ruff/pull/11270))
+- \[`refurb`\] Implement `fstring-number-format` (`FURB116`) ([#10921](https://github.com/astral-sh/ruff/pull/10921))
+- \[`ruff`\] Implement `redirected-noqa` (`RUF101`) ([#11052](https://github.com/astral-sh/ruff/pull/11052))
+- \[`pyflakes`\] Distinguish between first-party and third-party imports for fix suggestions ([#11168](https://github.com/astral-sh/ruff/pull/11168))
+
+### Rule changes
+
+- \[`flake8-bugbear`\] Ignore non-abstract class attributes when enforcing `B024` ([#11210](https://github.com/astral-sh/ruff/pull/11210))
+- \[`flake8-logging`\] Include inline instantiations when detecting loggers ([#11154](https://github.com/astral-sh/ruff/pull/11154))
+- \[`pylint`\] Also emit `PLR0206` for properties with variadic parameters ([#11200](https://github.com/astral-sh/ruff/pull/11200))
+- \[`ruff`\] Detect duplicate codes as part of `unused-noqa` (`RUF100`) ([#10850](https://github.com/astral-sh/ruff/pull/10850))
+
+### Formatter
+
+- Avoid multiline expression if format specifier is present ([#11123](https://github.com/astral-sh/ruff/pull/11123))
+
+### LSP
+
+- Write `ruff server` setup guide for Helix ([#11183](https://github.com/astral-sh/ruff/pull/11183))
+- `ruff server` no longer hangs after shutdown ([#11222](https://github.com/astral-sh/ruff/pull/11222))
+- `ruff server` reads from a configuration TOML file in the user configuration directory if no local configuration exists ([#11225](https://github.com/astral-sh/ruff/pull/11225))
+- `ruff server` respects `per-file-ignores` configuration ([#11224](https://github.com/astral-sh/ruff/pull/11224))
+- `ruff server`: Support a custom TOML configuration file ([#11140](https://github.com/astral-sh/ruff/pull/11140))
+- `ruff server`: Support setting to prioritize project configuration over editor configuration ([#11086](https://github.com/astral-sh/ruff/pull/11086))
+
+### Bug fixes
+
+- Avoid debug assertion around NFKC renames ([#11249](https://github.com/astral-sh/ruff/pull/11249))
+- \[`pyflakes`\] Prioritize `redefined-while-unused` over `unused-import` ([#11173](https://github.com/astral-sh/ruff/pull/11173))
+- \[`ruff`\] Respect `async` expressions in comprehension bodies ([#11219](https://github.com/astral-sh/ruff/pull/11219))
+- \[`pygrep_hooks`\] Fix `blanket-noqa` panic when last line has noqa with no newline (`PGH004`) ([#11108](https://github.com/astral-sh/ruff/pull/11108))
+- \[`perflint`\] Ignore list-copy recommendations for async `for` loops ([#11250](https://github.com/astral-sh/ruff/pull/11250))
+- \[`pyflakes`\] Improve `invalid-print-syntax` documentation ([#11171](https://github.com/astral-sh/ruff/pull/11171))
+
+### Performance
+
+- Avoid allocations for isort module names ([#11251](https://github.com/astral-sh/ruff/pull/11251))
+- Build a separate ARM wheel for macOS ([#11149](https://github.com/astral-sh/ruff/pull/11149))
+
+### Windows
+
+- Increase the minimum requirement to Windows 10.
+
+## 0.4.4
+
+### Preview features
+
+- \[`pycodestyle`\] Ignore end-of-line comments when determining blank line rules ([#11342](https://github.com/astral-sh/ruff/pull/11342))
+- \[`pylint`\] Detect `pathlib.Path.open` calls in `unspecified-encoding` (`PLW1514`) ([#11288](https://github.com/astral-sh/ruff/pull/11288))
+- \[`flake8-pyi`\] Implement `PYI059` (`generic-not-last-base-class`) ([#11233](https://github.com/astral-sh/ruff/pull/11233))
+- \[`flake8-pyi`\] Implement `PYI062` (`duplicate-literal-member`) ([#11269](https://github.com/astral-sh/ruff/pull/11269))
+
+### Rule changes
+
+- \[`flake8-boolean-trap`\] Allow passing booleans as positional-only arguments in code such as `set(True)` ([#11287](https://github.com/astral-sh/ruff/pull/11287))
+- \[`flake8-bugbear`\] Ignore enum classes in `cached-instance-method` (`B019`) ([#11312](https://github.com/astral-sh/ruff/pull/11312))
+
+### Server
+
+- Expand tildes when resolving Ruff server configuration file ([#11283](https://github.com/astral-sh/ruff/pull/11283))
+- Fix `ruff server` hanging after Neovim closes ([#11291](https://github.com/astral-sh/ruff/pull/11291))
+- Editor settings are used by default if no file-based configuration exists ([#11266](https://github.com/astral-sh/ruff/pull/11266))
+
+### Bug fixes
+
+- \[`pylint`\] Consider `with` statements for `too-many-branches` (`PLR0912`) ([#11321](https://github.com/astral-sh/ruff/pull/11321))
+- \[`flake8-blind-except`, `tryceratops`\] Respect logged and re-raised expressions in nested statements (`BLE001`, `TRY201`) ([#11301](https://github.com/astral-sh/ruff/pull/11301))
+- Recognise assignments such as `__all__ = builtins.list(["foo", "bar"])` as valid `__all__` definitions ([#11335](https://github.com/astral-sh/ruff/pull/11335))
+
+## 0.4.5
+
+### Ruff's language server is now in Beta
+
+`v0.4.5` marks the official Beta release of `ruff server`, an integrated language server built into Ruff.
+`ruff server` supports the same feature set as `ruff-lsp`, powering linting, formatting, and
+code fixes in Ruff's editor integrations -- but with superior performance and
+no installation required. We'd love your feedback!
+
+You can enable `ruff server` in the [VS Code extension](https://github.com/astral-sh/ruff-vscode?tab=readme-ov-file#enabling-the-rust-based-language-server) today.
+
+To read more about this exciting milestone, check out our [blog post](https://astral.sh/blog/ruff-v0.4.5)!
+
+### Rule changes
+
+- \[`flake8-future-annotations`\] Reword `future-rewritable-type-annotation` (`FA100`) message ([#11381](https://github.com/astral-sh/ruff/pull/11381))
+- \[`isort`\] Expanded the set of standard-library modules to include `_string`, etc. ([#11374](https://github.com/astral-sh/ruff/pull/11374))
+- \[`pycodestyle`\] Consider soft keywords for `E27` rules ([#11446](https://github.com/astral-sh/ruff/pull/11446))
+- \[`pyflakes`\] Recommend adding unused import bindings to `__all__` ([#11314](https://github.com/astral-sh/ruff/pull/11314))
+- \[`pyflakes`\] Update documentation and deprecate `ignore_init_module_imports` ([#11436](https://github.com/astral-sh/ruff/pull/11436))
+- \[`pyupgrade`\] Mark quotes as unnecessary for non-evaluated annotations ([#11485](https://github.com/astral-sh/ruff/pull/11485))
+
+### Formatter
+
+- Avoid multiline quotes warning with `quote-style = preserve` ([#11490](https://github.com/astral-sh/ruff/pull/11490))
+
+### Server
+
+- Support Jupyter Notebook files ([#11206](https://github.com/astral-sh/ruff/pull/11206))
+- Support `noqa` comment code actions ([#11276](https://github.com/astral-sh/ruff/pull/11276))
+- Fix automatic configuration reloading ([#11492](https://github.com/astral-sh/ruff/pull/11492))
+- Fix several issues with configuration in Neovim and Helix ([#11497](https://github.com/astral-sh/ruff/pull/11497))
+
+### CLI
+
+- Add `--output-format` as a CLI option for `ruff config` ([#11438](https://github.com/astral-sh/ruff/pull/11438))
+
+### Bug fixes
+
+- Avoid `PLE0237` for property with setter ([#11377](https://github.com/astral-sh/ruff/pull/11377))
+- Avoid `TCH005` for `if` stmt with `elif`/`else` block ([#11376](https://github.com/astral-sh/ruff/pull/11376))
+- Avoid flagging `__future__` annotations as required for non-evaluated type annotations ([#11414](https://github.com/astral-sh/ruff/pull/11414))
+- Check for ruff executable in 'bin' directory as installed by 'pip install --target'. ([#11450](https://github.com/astral-sh/ruff/pull/11450))
+- Sort edits prior to deduplicating in quotation fix ([#11452](https://github.com/astral-sh/ruff/pull/11452))
+- Treat escaped newline as valid sequence ([#11465](https://github.com/astral-sh/ruff/pull/11465))
+- \[`flake8-pie`\] Preserve parentheses in `unnecessary-dict-kwargs` ([#11372](https://github.com/astral-sh/ruff/pull/11372))
+- \[`pylint`\] Ignore `__slots__` with dynamic values ([#11488](https://github.com/astral-sh/ruff/pull/11488))
+- \[`pylint`\] Remove `try` body from branch counting ([#11487](https://github.com/astral-sh/ruff/pull/11487))
+- \[`refurb`\] Respect operator precedence in `FURB110` ([#11464](https://github.com/astral-sh/ruff/pull/11464))
+
+### Documentation
+
+- Add `--preview` to the README ([#11395](https://github.com/astral-sh/ruff/pull/11395))
+- Add Python 3.13 to list of allowed Python versions ([#11411](https://github.com/astral-sh/ruff/pull/11411))
+- Simplify Neovim setup documentation ([#11489](https://github.com/astral-sh/ruff/pull/11489))
+- Update CONTRIBUTING.md to reflect the new parser ([#11434](https://github.com/astral-sh/ruff/pull/11434))
+- Update server documentation with new migration guide ([#11499](https://github.com/astral-sh/ruff/pull/11499))
+- \[`pycodestyle`\] Clarify motivation for `E713` and `E714` ([#11483](https://github.com/astral-sh/ruff/pull/11483))
+- \[`pyflakes`\] Update docs to describe WAI behavior (F541) ([#11362](https://github.com/astral-sh/ruff/pull/11362))
+- \[`pylint`\] Clearly indicate what is counted as a branch ([#11423](https://github.com/astral-sh/ruff/pull/11423))
+
+## 0.4.6
+
+### Breaking changes
+
+- Use project-relative paths when calculating GitLab fingerprints ([#11532](https://github.com/astral-sh/ruff/pull/11532))
+- Bump minimum supported Windows version to Windows 10 ([#11613](https://github.com/astral-sh/ruff/pull/11613))
+
+### Preview features
+
+- \[`flake8-async`\] Sleep with >24 hour interval should usually sleep forever (`ASYNC116`) ([#11498](https://github.com/astral-sh/ruff/pull/11498))
+
+### Rule changes
+
+- \[`numpy`\] Add missing functions to NumPy 2.0 migration rule ([#11528](https://github.com/astral-sh/ruff/pull/11528))
+- \[`mccabe`\] Consider irrefutable pattern similar to `if .. else` for `C901` ([#11565](https://github.com/astral-sh/ruff/pull/11565))
+- Consider `match`-`case` statements for `C901`, `PLR0912`, and `PLR0915` ([#11521](https://github.com/astral-sh/ruff/pull/11521))
+- Remove empty strings when converting to f-string (`UP032`) ([#11524](https://github.com/astral-sh/ruff/pull/11524))
+- \[`flake8-bandit`\] `request-without-timeout` should warn for `requests.request` ([#11548](https://github.com/astral-sh/ruff/pull/11548))
+- \[`flake8-self`\] Ignore sunder accesses in `flake8-self` rules ([#11546](https://github.com/astral-sh/ruff/pull/11546))
+- \[`pyupgrade`\] Lint for `TypeAliasType` usages (`UP040`) ([#11530](https://github.com/astral-sh/ruff/pull/11530))
+
+### Server
+
+- Respect excludes in `ruff server` configuration discovery ([#11551](https://github.com/astral-sh/ruff/pull/11551))
+- Use default settings if initialization options is empty or not provided ([#11566](https://github.com/astral-sh/ruff/pull/11566))
+- `ruff server` correctly treats `.pyi` files as stub files ([#11535](https://github.com/astral-sh/ruff/pull/11535))
+- `ruff server` searches for configuration in parent directories ([#11537](https://github.com/astral-sh/ruff/pull/11537))
+- `ruff server`: An empty code action filter no longer returns notebook source actions ([#11526](https://github.com/astral-sh/ruff/pull/11526))
+
+### Bug fixes
+
+- \[`flake8-logging-format`\] Fix autofix title in `logging-warn` (`G010`) ([#11514](https://github.com/astral-sh/ruff/pull/11514))
+- \[`refurb`\] Avoid recommending `operator.itemgetter` with dependence on lambda arguments ([#11574](https://github.com/astral-sh/ruff/pull/11574))
+- \[`flake8-simplify`\] Avoid recommending context manager in `__enter__` implementations ([#11575](https://github.com/astral-sh/ruff/pull/11575))
+- Create intermediary directories for `--output-file` ([#11550](https://github.com/astral-sh/ruff/pull/11550))
+- Propagate reads on global variables ([#11584](https://github.com/astral-sh/ruff/pull/11584))
+- Treat all `singledispatch` arguments as runtime-required ([#11523](https://github.com/astral-sh/ruff/pull/11523))
+
+## 0.4.7
+
+### Preview features
+
+- \[`flake8-pyi`\] Implement `PYI064` ([#11325](https://github.com/astral-sh/ruff/pull/11325))
+- \[`flake8-pyi`\] Implement `PYI066` ([#11541](https://github.com/astral-sh/ruff/pull/11541))
+- \[`flake8-pyi`\] Implement `PYI057` ([#11486](https://github.com/astral-sh/ruff/pull/11486))
+- \[`pyflakes`\] Enable `F822` in `__init__.py` files by default ([#11370](https://github.com/astral-sh/ruff/pull/11370))
+
+### Formatter
+
+- Fix incorrect placement of trailing stub function comments ([#11632](https://github.com/astral-sh/ruff/pull/11632))
+
+### Server
+
+- Respect file exclusions in `ruff server` ([#11590](https://github.com/astral-sh/ruff/pull/11590))
+- Add support for documents not exist on disk ([#11588](https://github.com/astral-sh/ruff/pull/11588))
+- Add Vim and Kate setup guide for `ruff server` ([#11615](https://github.com/astral-sh/ruff/pull/11615))
+
+### Bug fixes
+
+- Avoid removing newlines between docstring headers and rST blocks ([#11609](https://github.com/astral-sh/ruff/pull/11609))
+- Infer indentation with imports when logical indent is absent ([#11608](https://github.com/astral-sh/ruff/pull/11608))
+- Use char index rather than position for indent slice ([#11645](https://github.com/astral-sh/ruff/pull/11645))
+- \[`flake8-comprehension`\] Strip parentheses around generators in `C400` ([#11607](https://github.com/astral-sh/ruff/pull/11607))
+- Mark `repeated-isinstance-calls` as unsafe on Python 3.10 and later ([#11622](https://github.com/astral-sh/ruff/pull/11622))
+
+## 0.4.8
+
+### Performance
+
+- Linter performance has been improved by around 10% on some microbenchmarks by refactoring the lexer and parser to maintain synchronicity between them ([#11457](https://github.com/astral-sh/ruff/pull/11457))
+
+### Preview features
+
+- \[`flake8-bugbear`\] Implement `return-in-generator` (`B901`) ([#11644](https://github.com/astral-sh/ruff/pull/11644))
+- \[`flake8-pyi`\] Implement `pep484-style-positional-only-parameter` (`PYI063`) ([#11699](https://github.com/astral-sh/ruff/pull/11699))
+- \[`pygrep_hooks`\] Check blanket ignores via file-level pragmas (`PGH004`) ([#11540](https://github.com/astral-sh/ruff/pull/11540))
+
+### Rule changes
+
+- \[`pyupgrade`\] Update `UP035` for Python 3.13 and the latest version of `typing_extensions` ([#11693](https://github.com/astral-sh/ruff/pull/11693))
+- \[`numpy`\] Update `NPY001` rule for NumPy 2.0 ([#11735](https://github.com/astral-sh/ruff/pull/11735))
+
+### Server
+
+- Formatting a document with syntax problems no longer spams a visible error popup ([#11745](https://github.com/astral-sh/ruff/pull/11745))
+
+### CLI
+
+- Add RDJson support for `--output-format` flag ([#11682](https://github.com/astral-sh/ruff/pull/11682))
+
+### Bug fixes
+
+- \[`pyupgrade`\] Write empty string in lieu of panic when fixing `UP032` ([#11696](https://github.com/astral-sh/ruff/pull/11696))
+- \[`flake8-simplify`\] Simplify double negatives in `SIM103` ([#11684](https://github.com/astral-sh/ruff/pull/11684))
+- Ensure the expression generator adds a newline before `type` statements ([#11720](https://github.com/astral-sh/ruff/pull/11720))
+- Respect per-file ignores for blanket and redirected noqa rules ([#11728](https://github.com/astral-sh/ruff/pull/11728))
+
+## 0.4.9
+
+### Preview features
+
+- \[`pylint`\] Implement `consider-dict-items` (`C0206`) ([#11688](https://github.com/astral-sh/ruff/pull/11688))
+- \[`refurb`\] Implement `repeated-global` (`FURB154`) ([#11187](https://github.com/astral-sh/ruff/pull/11187))
+
+### Rule changes
+
+- \[`pycodestyle`\] Adapt fix for `E203` to work identical to `ruff format` ([#10999](https://github.com/astral-sh/ruff/pull/10999))
+
+### Formatter
+
+- Fix formatter instability for lines only consisting of zero-width characters ([#11748](https://github.com/astral-sh/ruff/pull/11748))
+
+### Server
+
+- Add supported commands in server capabilities ([#11850](https://github.com/astral-sh/ruff/pull/11850))
+- Use real file path when available in `ruff server` ([#11800](https://github.com/astral-sh/ruff/pull/11800))
+- Improve error message when a command is run on an unavailable document ([#11823](https://github.com/astral-sh/ruff/pull/11823))
+- Introduce the `ruff.printDebugInformation` command ([#11831](https://github.com/astral-sh/ruff/pull/11831))
+- Tracing system now respects log level and trace level, with options to log to a file ([#11747](https://github.com/astral-sh/ruff/pull/11747))
+
+### CLI
+
+- Handle non-printable characters in diff view ([#11687](https://github.com/astral-sh/ruff/pull/11687))
+
+### Bug fixes
+
+- \[`refurb`\] Avoid suggesting starmap when arguments are used outside call (`FURB140`) ([#11830](https://github.com/astral-sh/ruff/pull/11830))
+- \[`flake8-bugbear`\] Avoid panic in `B909` when checking large loop blocks ([#11772](https://github.com/astral-sh/ruff/pull/11772))
+- \[`refurb`\] Fix misbehavior of `operator.itemgetter` when getter param is a tuple (`FURB118`) ([#11774](https://github.com/astral-sh/ruff/pull/11774))
+
+## 0.4.10
+
+### Parser
+
+- Implement re-lexing logic for better error recovery ([#11845](https://github.com/astral-sh/ruff/pull/11845))
+
+### Rule changes
+
+- \[`flake8-copyright`\] Update `CPY001` to check the first 4096 bytes instead of 1024 ([#11927](https://github.com/astral-sh/ruff/pull/11927))
+- \[`pycodestyle`\] Update `E999` to show all syntax errors instead of just the first one ([#11900](https://github.com/astral-sh/ruff/pull/11900))
+
+### Server
+
+- Add tracing setup guide to Helix documentation ([#11883](https://github.com/astral-sh/ruff/pull/11883))
+- Add tracing setup guide to Neovim documentation ([#11884](https://github.com/astral-sh/ruff/pull/11884))
+- Defer notebook cell deletion to avoid an error message ([#11864](https://github.com/astral-sh/ruff/pull/11864))
+
+### Security
+
+- Guard against malicious ecosystem comment artifacts ([#11879](https://github.com/astral-sh/ruff/pull/11879))

changelogs/0.5.x.md

@@ -0,0 +1,402 @@
+# Changelog 0.5.x
+
+## 0.5.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.5.0) for a migration guide and overview of the changes!
+
+### Breaking changes
+
+See also, the "Remapped rules" section which may result in disabled rules.
+
+- Follow the XDG specification to discover user-level configurations on macOS (same as on other Unix platforms)
+- Selecting `ALL` now excludes deprecated rules
+- The released archives now include an extra level of nesting, which can be removed with `--strip-components=1` when untarring.
+- The release artifact's file name no longer includes the version tag. This enables users to install via `/latest` URLs on GitHub.
+- The diagnostic ranges for some `flake8-bandit` rules were modified ([#10667](https://github.com/astral-sh/ruff/pull/10667)).
+
+### Deprecations
+
+The following rules are now deprecated:
+
+- [`syntax-error`](https://docs.astral.sh/ruff/rules/syntax-error/) (`E999`): Syntax errors are now always shown
+
+### Remapped rules
+
+The following rules have been remapped to new rule codes:
+
+- [`blocking-http-call-in-async-function`](https://docs.astral.sh/ruff/rules/blocking-http-call-in-async-function/): `ASYNC100` to `ASYNC210`
+- [`open-sleep-or-subprocess-in-async-function`](https://docs.astral.sh/ruff/rules/open-sleep-or-subprocess-in-async-function/): `ASYNC101` split into `ASYNC220`, `ASYNC221`, `ASYNC230`, and `ASYNC251`
+- [`blocking-os-call-in-async-function`](https://docs.astral.sh/ruff/rules/blocking-os-call-in-async-function/): `ASYNC102` has been merged into `ASYNC220` and `ASYNC221`
+- [`trio-timeout-without-await`](https://docs.astral.sh/ruff/rules/trio-timeout-without-await/): `TRIO100` to `ASYNC100`
+- [`trio-sync-call`](https://docs.astral.sh/ruff/rules/trio-sync-call/): `TRIO105` to `ASYNC105`
+- [`trio-async-function-with-timeout`](https://docs.astral.sh/ruff/rules/trio-async-function-with-timeout/): `TRIO109` to `ASYNC109`
+- [`trio-unneeded-sleep`](https://docs.astral.sh/ruff/rules/trio-unneeded-sleep/): `TRIO110` to `ASYNC110`
+- [`trio-zero-sleep-call`](https://docs.astral.sh/ruff/rules/trio-zero-sleep-call/): `TRIO115` to `ASYNC115`
+- [`repeated-isinstance-calls`](https://docs.astral.sh/ruff/rules/repeated-isinstance-calls/): `PLR1701` to `SIM101`
+
+### Stabilization
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`mutable-fromkeys-value`](https://docs.astral.sh/ruff/rules/mutable-fromkeys-value/) (`RUF024`)
+- [`default-factory-kwarg`](https://docs.astral.sh/ruff/rules/default-factory-kwarg/) (`RUF026`)
+- [`django-extra`](https://docs.astral.sh/ruff/rules/django-extra/) (`S610`)
+- [`manual-dict-comprehension`](https://docs.astral.sh/ruff/rules/manual-dict-comprehension/) (`PERF403`)
+- [`print-empty-string`](https://docs.astral.sh/ruff/rules/print-empty-string/) (`FURB105`)
+- [`readlines-in-for`](https://docs.astral.sh/ruff/rules/readlines-in-for/) (`FURB129`)
+- [`if-expr-min-max`](https://docs.astral.sh/ruff/rules/if-expr-min-max/) (`FURB136`)
+- [`bit-count`](https://docs.astral.sh/ruff/rules/bit-count/) (`FURB161`)
+- [`redundant-log-base`](https://docs.astral.sh/ruff/rules/redundant-log-base/) (`FURB163`)
+- [`regex-flag-alias`](https://docs.astral.sh/ruff/rules/regex-flag-alias/) (`FURB167`)
+- [`isinstance-type-none`](https://docs.astral.sh/ruff/rules/isinstance-type-none/) (`FURB168`)
+- [`type-none-comparison`](https://docs.astral.sh/ruff/rules/type-none-comparison/) (`FURB169`)
+- [`implicit-cwd`](https://docs.astral.sh/ruff/rules/implicit-cwd/) (`FURB177`)
+- [`hashlib-digest-hex`](https://docs.astral.sh/ruff/rules/hashlib-digest-hex/) (`FURB181`)
+- [`list-reverse-copy`](https://docs.astral.sh/ruff/rules/list-reverse-copy/) (`FURB187`)
+- [`bad-open-mode`](https://docs.astral.sh/ruff/rules/bad-open-mode/) (`PLW1501`)
+- [`empty-comment`](https://docs.astral.sh/ruff/rules/empty-comment/) (`PLR2044`)
+- [`global-at-module-level`](https://docs.astral.sh/ruff/rules/global-at-module-level/) (`PLW0604`)
+- [`misplaced-bare-raise`](https://docs.astral.sh/ruff/rules/misplaced-bare-raise/) (`PLE0744`)
+- [`non-ascii-import-name`](https://docs.astral.sh/ruff/rules/non-ascii-import-name/) (`PLC2403`)
+- [`non-ascii-name`](https://docs.astral.sh/ruff/rules/non-ascii-name/) (`PLC2401`)
+- [`nonlocal-and-global`](https://docs.astral.sh/ruff/rules/nonlocal-and-global/) (`PLE0115`)
+- [`potential-index-error`](https://docs.astral.sh/ruff/rules/potential-index-error/) (`PLE0643`)
+- [`redeclared-assigned-name`](https://docs.astral.sh/ruff/rules/redeclared-assigned-name/) (`PLW0128`)
+- [`redefined-argument-from-local`](https://docs.astral.sh/ruff/rules/redefined-argument-from-local/) (`PLR1704`)
+- [`repeated-keyword-argument`](https://docs.astral.sh/ruff/rules/repeated-keyword-argument/) (`PLE1132`)
+- [`super-without-brackets`](https://docs.astral.sh/ruff/rules/super-without-brackets/) (`PLW0245`)
+- [`unnecessary-list-index-lookup`](https://docs.astral.sh/ruff/rules/unnecessary-list-index-lookup/) (`PLR1736`)
+- [`useless-exception-statement`](https://docs.astral.sh/ruff/rules/useless-exception-statement/) (`PLW0133`)
+- [`useless-with-lock`](https://docs.astral.sh/ruff/rules/useless-with-lock/) (`PLW2101`)
+
+The following behaviors have been stabilized:
+
+- [`is-literal`](https://docs.astral.sh/ruff/rules/is-literal/) (`F632`) now warns for identity checks against list, set or dictionary literals
+- [`needless-bool`](https://docs.astral.sh/ruff/rules/needless-bool/) (`SIM103`) now detects `if` expressions with implicit `else` branches
+- [`module-import-not-at-top-of-file`](https://docs.astral.sh/ruff/rules/module-import-not-at-top-of-file/) (`E402`) now allows `os.environ` modifications between import statements
+- [`type-comparison`](https://docs.astral.sh/ruff/rules/type-comparison/) (`E721`) now allows idioms such as `type(x) is int`
+- [`yoda-condition`](https://docs.astral.sh/ruff/rules/yoda-conditions/) (`SIM300`) now flags a wider range of expressions
+
+### Removals
+
+The following deprecated settings have been removed:
+
+- `output-format=text`; use `output-format=concise` or `output-format=full`
+- `tab-size`; use `indent-width`
+
+The following deprecated CLI options have been removed:
+
+- `--show-source`; use `--output-format=full`
+- `--no-show-source`; use `--output-format=concise`
+
+The following deprecated CLI commands have been removed:
+
+- `ruff <path>`; use `ruff check <path>`
+- `ruff --clean`; use `ruff clean`
+- `ruff --generate-shell-completion`; use `ruff generate-shell-completion`
+
+### Preview features
+
+- \[`ruff`\] Add `assert-with-print-message` rule ([#11981](https://github.com/astral-sh/ruff/pull/11981))
+
+### CLI
+
+- Use rule name rather than message in `--statistics` ([#11697](https://github.com/astral-sh/ruff/pull/11697))
+- Use the output format `full` by default ([#12010](https://github.com/astral-sh/ruff/pull/12010))
+- Don't log syntax errors to the console ([#11902](https://github.com/astral-sh/ruff/pull/11902))
+
+### Rule changes
+
+- \[`ruff`\] Fix false positives if `gettext` is imported using an alias (`RUF027`) ([#12025](https://github.com/astral-sh/ruff/pull/12025))
+- \[`numpy`\] Update `trapz` and `in1d` deprecation (`NPY201`) ([#11948](https://github.com/astral-sh/ruff/pull/11948))
+- \[`flake8-bandit`\] Modify diagnostic ranges for shell-related rules ([#10667](https://github.com/astral-sh/ruff/pull/10667))
+
+### Server
+
+- Closing an untitled, unsaved notebook document no longer throws an error ([#11942](https://github.com/astral-sh/ruff/pull/11942))
+- Support the usage of tildes and environment variables in `logFile` ([#11945](https://github.com/astral-sh/ruff/pull/11945))
+- Add option to configure whether to show syntax errors ([#12059](https://github.com/astral-sh/ruff/pull/12059))
+
+### Bug fixes
+
+- \[`pycodestyle`\] Avoid `E203` for f-string debug expression ([#12024](https://github.com/astral-sh/ruff/pull/12024))
+- \[`pep8-naming`\] Match import-name ignores against both name and alias (`N812`, `N817`) ([#12033](https://github.com/astral-sh/ruff/pull/12033))
+- \[`pyflakes`\] Detect assignments that shadow definitions (`F811`) ([#11961](https://github.com/astral-sh/ruff/pull/11961))
+
+### Parser
+
+- Emit a syntax error for an empty type parameter list ([#12030](https://github.com/astral-sh/ruff/pull/12030))
+- Avoid consuming the newline for unterminated strings ([#12067](https://github.com/astral-sh/ruff/pull/12067))
+- Do not include the newline in the unterminated string range ([#12017](https://github.com/astral-sh/ruff/pull/12017))
+- Use the correct range to highlight line continuation errors ([#12016](https://github.com/astral-sh/ruff/pull/12016))
+- Consider 2-character EOL before line continuations ([#12035](https://github.com/astral-sh/ruff/pull/12035))
+- Consider line continuation character for re-lexing ([#12008](https://github.com/astral-sh/ruff/pull/12008))
+
+### Other changes
+
+- Upgrade the Unicode table used for measuring the line-length ([#11194](https://github.com/astral-sh/ruff/pull/11194))
+- Remove the deprecation error message for the nursery selector ([#10172](https://github.com/astral-sh/ruff/pull/10172))
+
+## 0.5.1
+
+### Preview features
+
+- \[`flake8-bugbear`\] Implement mutable-contextvar-default (B039) ([#12113](https://github.com/astral-sh/ruff/pull/12113))
+- \[`pycodestyle`\] Whitespace after decorator (`E204`) ([#12140](https://github.com/astral-sh/ruff/pull/12140))
+- \[`pytest`\] Reverse `PT001` and `PT0023` defaults ([#12106](https://github.com/astral-sh/ruff/pull/12106))
+
+### Rule changes
+
+- Enable token-based rules on source with syntax errors ([#11950](https://github.com/astral-sh/ruff/pull/11950))
+- \[`flake8-bandit`\] Detect `httpx` for `S113` ([#12174](https://github.com/astral-sh/ruff/pull/12174))
+- \[`numpy`\] Update `NPY201` to include exception deprecations ([#12065](https://github.com/astral-sh/ruff/pull/12065))
+- \[`pylint`\] Generate autofix for `duplicate-bases` (`PLE0241`) ([#12105](https://github.com/astral-sh/ruff/pull/12105))
+
+### Server
+
+- Avoid syntax error notification for source code actions ([#12148](https://github.com/astral-sh/ruff/pull/12148))
+- Consider the content of the new cells during notebook sync ([#12203](https://github.com/astral-sh/ruff/pull/12203))
+- Fix replacement edit range computation ([#12171](https://github.com/astral-sh/ruff/pull/12171))
+
+### Bug fixes
+
+- Disable auto-fix when source has syntax errors ([#12134](https://github.com/astral-sh/ruff/pull/12134))
+- Fix cache key collisions for paths with separators ([#12159](https://github.com/astral-sh/ruff/pull/12159))
+- Make `requires-python` inference robust to `==` ([#12091](https://github.com/astral-sh/ruff/pull/12091))
+- Use char-wise width instead of `str`-width ([#12135](https://github.com/astral-sh/ruff/pull/12135))
+- \[`pycodestyle`\] Avoid `E275` if keyword followed by comma ([#12136](https://github.com/astral-sh/ruff/pull/12136))
+- \[`pycodestyle`\] Avoid `E275` if keyword is followed by a semicolon ([#12095](https://github.com/astral-sh/ruff/pull/12095))
+- \[`pylint`\] Skip [dummy variables](https://docs.astral.sh/ruff/settings/#lint_dummy-variable-rgx) for `PLR1704` ([#12190](https://github.com/astral-sh/ruff/pull/12190))
+
+### Performance
+
+- Remove allocation in `parse_identifier` ([#12103](https://github.com/astral-sh/ruff/pull/12103))
+- Use `CompactString` for `Identifier` AST node ([#12101](https://github.com/astral-sh/ruff/pull/12101))
+
+## 0.5.2
+
+### Preview features
+
+- Use `space` separator before parenthesized expressions in comprehensions with leading comments ([#12282](https://github.com/astral-sh/ruff/pull/12282))
+- \[`flake8-async`\] Update `ASYNC100` to include `anyio` and `asyncio` ([#12221](https://github.com/astral-sh/ruff/pull/12221))
+- \[`flake8-async`\] Update `ASYNC109` to include `anyio` and `asyncio` ([#12236](https://github.com/astral-sh/ruff/pull/12236))
+- \[`flake8-async`\] Update `ASYNC110` to include `anyio` and `asyncio` ([#12261](https://github.com/astral-sh/ruff/pull/12261))
+- \[`flake8-async`\] Update `ASYNC115` to include `anyio` and `asyncio` ([#12262](https://github.com/astral-sh/ruff/pull/12262))
+- \[`flake8-async`\] Update `ASYNC116` to include `anyio` and `asyncio` ([#12266](https://github.com/astral-sh/ruff/pull/12266))
+
+### Rule changes
+
+- \[`flake8-return`\] Exempt properties from explicit return rule (`RET501`) ([#12243](https://github.com/astral-sh/ruff/pull/12243))
+- \[`numpy`\] Add `np.NAN`-to-`np.nan` diagnostic ([#12292](https://github.com/astral-sh/ruff/pull/12292))
+- \[`refurb`\] Make `list-reverse-copy` an unsafe fix ([#12303](https://github.com/astral-sh/ruff/pull/12303))
+
+### Server
+
+- Consider `include` and `extend-include` settings in native server ([#12252](https://github.com/astral-sh/ruff/pull/12252))
+- Include nested configurations in settings reloading ([#12253](https://github.com/astral-sh/ruff/pull/12253))
+
+### CLI
+
+- Omit code frames for fixes with empty ranges ([#12304](https://github.com/astral-sh/ruff/pull/12304))
+- Warn about formatter incompatibility for `D203` ([#12238](https://github.com/astral-sh/ruff/pull/12238))
+
+### Bug fixes
+
+- Make cache-write failures non-fatal on Windows ([#12302](https://github.com/astral-sh/ruff/pull/12302))
+- Treat `not` operations as boolean tests ([#12301](https://github.com/astral-sh/ruff/pull/12301))
+- \[`flake8-bandit`\] Avoid `S310` violations for HTTP-safe f-strings ([#12305](https://github.com/astral-sh/ruff/pull/12305))
+- \[`flake8-bandit`\] Support explicit string concatenations in S310 HTTP detection ([#12315](https://github.com/astral-sh/ruff/pull/12315))
+- \[`flake8-bandit`\] fix S113 false positive for httpx without `timeout` argument ([#12213](https://github.com/astral-sh/ruff/pull/12213))
+- \[`pycodestyle`\] Remove "non-obvious" allowance for E721 ([#12300](https://github.com/astral-sh/ruff/pull/12300))
+- \[`pyflakes`\] Consider `with` blocks as single-item branches for redefinition analysis ([#12311](https://github.com/astral-sh/ruff/pull/12311))
+- \[`refurb`\] Restrict forwarding for `newline` argument in `open()` calls to Python versions >= 3.10 ([#12244](https://github.com/astral-sh/ruff/pull/12244))
+
+### Documentation
+
+- Update help and documentation to reflect `--output-format full` default ([#12248](https://github.com/astral-sh/ruff/pull/12248))
+
+### Performance
+
+- Use more threads when discovering Python files ([#12258](https://github.com/astral-sh/ruff/pull/12258))
+
+## 0.5.3
+
+**Ruff 0.5.3 marks the stable release of the Ruff language server and introduces revamped
+[documentation](https://docs.astral.sh/ruff/editors), including [setup guides for your editor of
+choice](https://docs.astral.sh/ruff/editors/setup) and [the language server
+itself](https://docs.astral.sh/ruff/editors/settings)**.
+
+### Preview features
+
+- Formatter: Insert empty line between suite and alternative branch after function/class definition ([#12294](https://github.com/astral-sh/ruff/pull/12294))
+- \[`pyupgrade`\] Implement `unnecessary-default-type-args` (`UP043`) ([#12371](https://github.com/astral-sh/ruff/pull/12371))
+
+### Rule changes
+
+- \[`flake8-bugbear`\] Detect enumerate iterations in `loop-iterator-mutation` (`B909`) ([#12366](https://github.com/astral-sh/ruff/pull/12366))
+- \[`flake8-bugbear`\] Remove `discard`, `remove`, and `pop` allowance for `loop-iterator-mutation` (`B909`) ([#12365](https://github.com/astral-sh/ruff/pull/12365))
+- \[`pylint`\] Allow `repeated-equality-comparison` for mixed operations (`PLR1714`) ([#12369](https://github.com/astral-sh/ruff/pull/12369))
+- \[`pylint`\] Ignore `self` and `cls` when counting arguments (`PLR0913`) ([#12367](https://github.com/astral-sh/ruff/pull/12367))
+- \[`pylint`\] Use UTF-8 as default encoding in `unspecified-encoding` fix (`PLW1514`) ([#12370](https://github.com/astral-sh/ruff/pull/12370))
+
+### Server
+
+- Build settings index in parallel for the native server ([#12299](https://github.com/astral-sh/ruff/pull/12299))
+- Use fallback settings when indexing the project ([#12362](https://github.com/astral-sh/ruff/pull/12362))
+- Consider `--preview` flag for `server` subcommand for the linter and formatter ([#12208](https://github.com/astral-sh/ruff/pull/12208))
+
+### Bug fixes
+
+- \[`flake8-comprehensions`\] Allow additional arguments for `sum` and `max` comprehensions (`C419`) ([#12364](https://github.com/astral-sh/ruff/pull/12364))
+- \[`pylint`\] Avoid dropping extra boolean operations in `repeated-equality-comparison` (`PLR1714`) ([#12368](https://github.com/astral-sh/ruff/pull/12368))
+- \[`pylint`\] Consider expression before statement when determining binding kind (`PLR1704`) ([#12346](https://github.com/astral-sh/ruff/pull/12346))
+
+### Documentation
+
+- Add docs for Ruff language server ([#12344](https://github.com/astral-sh/ruff/pull/12344))
+- Migrate to standalone docs repo ([#12341](https://github.com/astral-sh/ruff/pull/12341))
+- Update versioning policy for editor integration ([#12375](https://github.com/astral-sh/ruff/pull/12375))
+
+### Other changes
+
+- Publish Wasm API to npm ([#12317](https://github.com/astral-sh/ruff/pull/12317))
+
+## 0.5.4
+
+### Rule changes
+
+- \[`ruff`\] Rename `RUF007` to `zip-instead-of-pairwise` ([#12399](https://github.com/astral-sh/ruff/pull/12399))
+
+### Bug fixes
+
+- \[`flake8-builtins`\] Avoid shadowing diagnostics for `@override` methods ([#12415](https://github.com/astral-sh/ruff/pull/12415))
+- \[`flake8-comprehensions`\] Insert parentheses for multi-argument generators ([#12422](https://github.com/astral-sh/ruff/pull/12422))
+- \[`pydocstyle`\] Handle escaped docstrings within docstring (`D301`) ([#12192](https://github.com/astral-sh/ruff/pull/12192))
+
+### Documentation
+
+- Fix GitHub link to Neovim setup ([#12410](https://github.com/astral-sh/ruff/pull/12410))
+- Fix `output-format` default in settings reference ([#12409](https://github.com/astral-sh/ruff/pull/12409))
+
+## 0.5.5
+
+### Preview features
+
+- \[`fastapi`\] Implement `fastapi-redundant-response-model` (`FAST001`) and `fastapi-non-annotated-dependency`(`FAST002`) ([#11579](https://github.com/astral-sh/ruff/pull/11579))
+- \[`pydoclint`\] Implement `docstring-missing-exception` (`DOC501`) and `docstring-extraneous-exception` (`DOC502`) ([#11471](https://github.com/astral-sh/ruff/pull/11471))
+
+### Rule changes
+
+- \[`numpy`\] Fix NumPy 2.0 rule for `np.alltrue` and `np.sometrue` ([#12473](https://github.com/astral-sh/ruff/pull/12473))
+- \[`numpy`\] Ignore `NPY201` inside `except` blocks for compatibility with older numpy versions ([#12490](https://github.com/astral-sh/ruff/pull/12490))
+- \[`pep8-naming`\] Avoid applying `ignore-names` to `self` and `cls` function names (`N804`, `N805`) ([#12497](https://github.com/astral-sh/ruff/pull/12497))
+
+### Formatter
+
+- Fix incorrect placement of leading function comment with type params ([#12447](https://github.com/astral-sh/ruff/pull/12447))
+
+### Server
+
+- Do not bail code action resolution when a quick fix is requested ([#12462](https://github.com/astral-sh/ruff/pull/12462))
+
+### Bug fixes
+
+- Fix `Ord` implementation of `cmp_fix` ([#12471](https://github.com/astral-sh/ruff/pull/12471))
+- Raise syntax error for unparenthesized generator expression in multi-argument call ([#12445](https://github.com/astral-sh/ruff/pull/12445))
+- \[`pydoclint`\] Fix panic in `DOC501` reported in [#12428](https://github.com/astral-sh/ruff/pull/12428) ([#12435](https://github.com/astral-sh/ruff/pull/12435))
+- \[`flake8-bugbear`\] Allow singleton tuples with starred expressions in `B013` ([#12484](https://github.com/astral-sh/ruff/pull/12484))
+
+### Documentation
+
+- Add Eglot setup guide for Emacs editor ([#12426](https://github.com/astral-sh/ruff/pull/12426))
+- Add note about the breaking change in `nvim-lspconfig` ([#12507](https://github.com/astral-sh/ruff/pull/12507))
+- Add note to include notebook files for native server ([#12449](https://github.com/astral-sh/ruff/pull/12449))
+- Add setup docs for Zed editor ([#12501](https://github.com/astral-sh/ruff/pull/12501))
+
+## 0.5.6
+
+Ruff 0.5.6 automatically enables linting and formatting of notebooks in _preview mode_.
+You can opt-out of this behavior by adding `*.ipynb` to the `extend-exclude` setting.
+
+```toml
+[tool.ruff]
+extend-exclude = ["*.ipynb"]
+```
+
+### Preview features
+
+- Enable notebooks by default in preview mode ([#12621](https://github.com/astral-sh/ruff/pull/12621))
+- \[`flake8-builtins`\] Implement import, lambda, and module shadowing ([#12546](https://github.com/astral-sh/ruff/pull/12546))
+- \[`pydoclint`\] Add `docstring-missing-returns` (`DOC201`) and `docstring-extraneous-returns` (`DOC202`) ([#12485](https://github.com/astral-sh/ruff/pull/12485))
+
+### Rule changes
+
+- \[`flake8-return`\] Exempt cached properties and other property-like decorators from explicit return rule (`RET501`) ([#12563](https://github.com/astral-sh/ruff/pull/12563))
+
+### Server
+
+- Make server panic hook more error resilient ([#12610](https://github.com/astral-sh/ruff/pull/12610))
+- Use `$/logTrace` for server trace logs in Zed and VS Code ([#12564](https://github.com/astral-sh/ruff/pull/12564))
+- Keep track of deleted cells for reorder change request ([#12575](https://github.com/astral-sh/ruff/pull/12575))
+
+### Configuration
+
+- \[`flake8-implicit-str-concat`\] Always allow explicit multi-line concatenations when implicit concatenations are banned ([#12532](https://github.com/astral-sh/ruff/pull/12532))
+
+### Bug fixes
+
+- \[`flake8-async`\] Avoid flagging `asyncio.timeout`s as unused when the context manager includes `asyncio.TaskGroup` ([#12605](https://github.com/astral-sh/ruff/pull/12605))
+- \[`flake8-slots`\] Avoid recommending `__slots__` for classes that inherit from more than `namedtuple` ([#12531](https://github.com/astral-sh/ruff/pull/12531))
+- \[`isort`\] Avoid marking required imports as unused ([#12537](https://github.com/astral-sh/ruff/pull/12537))
+- \[`isort`\] Preserve trailing inline comments on import-from statements ([#12498](https://github.com/astral-sh/ruff/pull/12498))
+- \[`pycodestyle`\] Add newlines before comments (`E305`) ([#12606](https://github.com/astral-sh/ruff/pull/12606))
+- \[`pycodestyle`\] Don't attach comments with mismatched indents ([#12604](https://github.com/astral-sh/ruff/pull/12604))
+- \[`pyflakes`\] Fix preview-mode bugs in `F401` when attempting to autofix unused first-party submodule imports in an `__init__.py` file ([#12569](https://github.com/astral-sh/ruff/pull/12569))
+- \[`pylint`\] Respect start index in `unnecessary-list-index-lookup` ([#12603](https://github.com/astral-sh/ruff/pull/12603))
+- \[`pyupgrade`\] Avoid recommending no-argument super in `slots=True` dataclasses ([#12530](https://github.com/astral-sh/ruff/pull/12530))
+- \[`pyupgrade`\] Use colon rather than dot formatting for integer-only types ([#12534](https://github.com/astral-sh/ruff/pull/12534))
+- Fix NFKC normalization bug when removing unused imports ([#12571](https://github.com/astral-sh/ruff/pull/12571))
+
+### Other changes
+
+- Consider more stdlib decorators to be property-like ([#12583](https://github.com/astral-sh/ruff/pull/12583))
+- Improve handling of metaclasses in various linter rules ([#12579](https://github.com/astral-sh/ruff/pull/12579))
+- Improve consistency between linter rules in determining whether a function is property ([#12581](https://github.com/astral-sh/ruff/pull/12581))
+
+## 0.5.7
+
+### Preview features
+
+- \[`flake8-comprehensions`\] Account for list and set comprehensions in `unnecessary-literal-within-tuple-call` (`C409`) ([#12657](https://github.com/astral-sh/ruff/pull/12657))
+- \[`flake8-pyi`\] Add autofix for `future-annotations-in-stub` (`PYI044`) ([#12676](https://github.com/astral-sh/ruff/pull/12676))
+- \[`flake8-return`\] Avoid syntax error when auto-fixing `RET505` with mixed indentation (space and tabs) ([#12740](https://github.com/astral-sh/ruff/pull/12740))
+- \[`pydoclint`\] Add `docstring-missing-yields` (`DOC402`) and `docstring-extraneous-yields` (`DOC403`) ([#12538](https://github.com/astral-sh/ruff/pull/12538))
+- \[`pydoclint`\] Avoid `DOC201` if docstring begins with "Return", "Returns", "Yield", or "Yields" ([#12675](https://github.com/astral-sh/ruff/pull/12675))
+- \[`pydoclint`\] Deduplicate collected exceptions after traversing function bodies (`DOC501`) ([#12642](https://github.com/astral-sh/ruff/pull/12642))
+- \[`pydoclint`\] Ignore `DOC` errors for stub functions ([#12651](https://github.com/astral-sh/ruff/pull/12651))
+- \[`pydoclint`\] Teach rules to understand reraised exceptions as being explicitly raised (`DOC501`, `DOC502`) ([#12639](https://github.com/astral-sh/ruff/pull/12639))
+- \[`ruff`\] Implement `incorrectly-parenthesized-tuple-in-subscript` (`RUF031`) ([#12480](https://github.com/astral-sh/ruff/pull/12480))
+- \[`ruff`\] Mark `RUF023` fix as unsafe if `__slots__` is not a set and the binding is used elsewhere ([#12692](https://github.com/astral-sh/ruff/pull/12692))
+
+### Rule changes
+
+- \[`refurb`\] Add autofix for `implicit-cwd` (`FURB177`) ([#12708](https://github.com/astral-sh/ruff/pull/12708))
+- \[`ruff`\] Add autofix for `zip-instead-of-pairwise` (`RUF007`) ([#12663](https://github.com/astral-sh/ruff/pull/12663))
+- \[`tryceratops`\] Add `BaseException` to `raise-vanilla-class` rule (`TRY002`) ([#12620](https://github.com/astral-sh/ruff/pull/12620))
+
+### Server
+
+- Ignore non-file workspace URL; Ruff will display a warning notification in this case ([#12725](https://github.com/astral-sh/ruff/pull/12725))
+
+### CLI
+
+- Fix cache invalidation for nested `pyproject.toml` files ([#12727](https://github.com/astral-sh/ruff/pull/12727))
+
+### Bug fixes
+
+- \[`flake8-async`\] Fix false positives with multiple `async with` items (`ASYNC100`) ([#12643](https://github.com/astral-sh/ruff/pull/12643))
+- \[`flake8-bandit`\] Avoid false-positives for list concatenations in SQL construction (`S608`) ([#12720](https://github.com/astral-sh/ruff/pull/12720))
+- \[`flake8-bugbear`\] Treat `return` as equivalent to `break` (`B909`) ([#12646](https://github.com/astral-sh/ruff/pull/12646))
+- \[`flake8-comprehensions`\] Set comprehensions not a violation for `sum` in `unnecessary-comprehension-in-call` (`C419`) ([#12691](https://github.com/astral-sh/ruff/pull/12691))
+- \[`flake8-simplify`\] Parenthesize conditions based on precedence when merging if arms (`SIM114`) ([#12737](https://github.com/astral-sh/ruff/pull/12737))
+- \[`pydoclint`\] Try both 'Raises' section styles when convention is unspecified (`DOC501`) ([#12649](https://github.com/astral-sh/ruff/pull/12649))

changelogs/0.6.x.md

@@ -0,0 +1,331 @@
+# Changelog 0.6.x
+
+## 0.6.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.6.0) for a migration guide and overview of the changes!
+
+### Breaking changes
+
+See also, the "Remapped rules" section which may result in disabled rules.
+
+- Lint and format Jupyter Notebook by default ([#12878](https://github.com/astral-sh/ruff/pull/12878)).
+- Detect imports in `src` layouts by default for `isort` rules ([#12848](https://github.com/astral-sh/ruff/pull/12848))
+- The pytest rules `PT001` and `PT023` now default to omitting the decorator parentheses when there are no arguments ([#12838](https://github.com/astral-sh/ruff/pull/12838)).
+
+### Deprecations
+
+The following rules are now deprecated:
+
+- [`pytest-missing-fixture-name-underscore`](https://docs.astral.sh/ruff/rules/pytest-missing-fixture-name-underscore/) (`PT004`)
+- [`pytest-incorrect-fixture-name-underscore`](https://docs.astral.sh/ruff/rules/pytest-incorrect-fixture-name-underscore/) (`PT005`)
+- [`unpacked-list-comprehension`](https://docs.astral.sh/ruff/rules/unpacked-list-comprehension/) (`UP027`)
+
+### Remapped rules
+
+The following rules have been remapped to new rule codes:
+
+- [`unnecessary-dict-comprehension-for-iterable`](https://docs.astral.sh/ruff/rules/unnecessary-dict-comprehension-for-iterable/): `RUF025` to `C420`
+
+### Stabilization
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`singledispatch-method`](https://docs.astral.sh/ruff/rules/singledispatch-method/) (`PLE1519`)
+- [`singledispatchmethod-function`](https://docs.astral.sh/ruff/rules/singledispatchmethod-function/) (`PLE1520`)
+- [`bad-staticmethod-argument`](https://docs.astral.sh/ruff/rules/bad-staticmethod-argument/) (`PLW0211`)
+- [`if-stmt-min-max`](https://docs.astral.sh/ruff/rules/if-stmt-min-max/) (`PLR1730`)
+- [`invalid-bytes-return-type`](https://docs.astral.sh/ruff/rules/invalid-bytes-return-type/) (`PLE0308`)
+- [`invalid-hash-return-type`](https://docs.astral.sh/ruff/rules/invalid-hash-return-type/) (`PLE0309`)
+- [`invalid-index-return-type`](https://docs.astral.sh/ruff/rules/invalid-index-return-type/) (`PLE0305`)
+- [`invalid-length-return-type`](https://docs.astral.sh/ruff/rules/invalid-length-return-type/) (`PLEE303`)
+- [`self-or-cls-assignment`](https://docs.astral.sh/ruff/rules/self-or-cls-assignment/) (`PLW0642`)
+- [`byte-string-usage`](https://docs.astral.sh/ruff/rules/byte-string-usage/) (`PYI057`)
+- [`duplicate-literal-member`](https://docs.astral.sh/ruff/rules/duplicate-literal-member/) (`PYI062`)
+- [`redirected-noqa`](https://docs.astral.sh/ruff/rules/redirected-noqa/) (`RUF101`)
+
+The following behaviors have been stabilized:
+
+- [`cancel-scope-no-checkpoint`](https://docs.astral.sh/ruff/rules/cancel-scope-no-checkpoint/) (`ASYNC100`): Support `asyncio` and `anyio` context managers.
+- [`async-function-with-timeout`](https://docs.astral.sh/ruff/rules/async-function-with-timeout/) (`ASYNC109`): Support `asyncio` and `anyio` context managers.
+- [`async-busy-wait`](https://docs.astral.sh/ruff/rules/async-busy-wait/) (`ASYNC110`): Support `asyncio` and `anyio` context managers.
+- [`async-zero-sleep`](https://docs.astral.sh/ruff/rules/async-zero-sleep/) (`ASYNC115`): Support `anyio` context managers.
+- [`long-sleep-not-forever`](https://docs.astral.sh/ruff/rules/long-sleep-not-forever/) (`ASYNC116`): Support `anyio` context managers.
+
+The following fixes have been stabilized:
+
+- [`superfluous-else-return`](https://docs.astral.sh/ruff/rules/superfluous-else-return/) (`RET505`)
+- [`superfluous-else-raise`](https://docs.astral.sh/ruff/rules/superfluous-else-raise/) (`RET506`)
+- [`superfluous-else-continue`](https://docs.astral.sh/ruff/rules/superfluous-else-continue/) (`RET507`)
+- [`superfluous-else-break`](https://docs.astral.sh/ruff/rules/superfluous-else-break/) (`RET508`)
+
+### Preview features
+
+- \[`flake8-simplify`\] Further simplify to binary in preview for (`SIM108`) ([#12796](https://github.com/astral-sh/ruff/pull/12796))
+- \[`pyupgrade`\] Show violations without auto-fix (`UP031`) ([#11229](https://github.com/astral-sh/ruff/pull/11229))
+
+### Rule changes
+
+- \[`flake8-import-conventions`\] Add `xml.etree.ElementTree` to default conventions ([#12455](https://github.com/astral-sh/ruff/pull/12455))
+- \[`flake8-pytest-style`\] Add a space after comma in CSV output (`PT006`) ([#12853](https://github.com/astral-sh/ruff/pull/12853))
+
+### Server
+
+- Show a message for incorrect settings ([#12781](https://github.com/astral-sh/ruff/pull/12781))
+
+### Bug fixes
+
+- \[`flake8-async`\] Do not lint yield in context manager (`ASYNC100`) ([#12896](https://github.com/astral-sh/ruff/pull/12896))
+- \[`flake8-comprehensions`\] Do not lint `async for` comprehensions (`C419`) ([#12895](https://github.com/astral-sh/ruff/pull/12895))
+- \[`flake8-return`\] Only add return `None` at end of a function (`RET503`) ([#11074](https://github.com/astral-sh/ruff/pull/11074))
+- \[`flake8-type-checking`\] Avoid treating `dataclasses.KW_ONLY` as typing-only (`TCH003`) ([#12863](https://github.com/astral-sh/ruff/pull/12863))
+- \[`pep8-naming`\] Treat `type(Protocol)` et al as metaclass base (`N805`) ([#12770](https://github.com/astral-sh/ruff/pull/12770))
+- \[`pydoclint`\] Don't enforce returns and yields in abstract methods (`DOC201`, `DOC202`) ([#12771](https://github.com/astral-sh/ruff/pull/12771))
+- \[`ruff`\] Skip tuples with slice expressions in (`RUF031`) ([#12768](https://github.com/astral-sh/ruff/pull/12768))
+- \[`ruff`\] Ignore unparenthesized tuples in subscripts when the subscript is a type annotation or type alias (`RUF031`) ([#12762](https://github.com/astral-sh/ruff/pull/12762))
+- \[`ruff`\] Ignore template strings passed to logging and `builtins._()` calls (`RUF027`) ([#12889](https://github.com/astral-sh/ruff/pull/12889))
+- \[`ruff`\] Do not remove parens for tuples with starred expressions in Python \<=3.10 (`RUF031`) ([#12784](https://github.com/astral-sh/ruff/pull/12784))
+- Evaluate default parameter values for a function in that function's enclosing scope ([#12852](https://github.com/astral-sh/ruff/pull/12852))
+
+### Other changes
+
+- Respect VS Code cell metadata when detecting the language of Jupyter Notebook cells ([#12864](https://github.com/astral-sh/ruff/pull/12864))
+- Respect `kernelspec` notebook metadata when detecting the preferred language for a Jupyter Notebook ([#12875](https://github.com/astral-sh/ruff/pull/12875))
+
+## 0.6.1
+
+This is a hotfix release to address an issue with `ruff-pre-commit`. In v0.6,
+Ruff changed its behavior to lint and format Jupyter notebooks by default;
+however, due to an oversight, these files were still excluded by default if
+Ruff was run via pre-commit, leading to inconsistent behavior.
+This has [now been fixed](https://github.com/astral-sh/ruff-pre-commit/pull/96).
+
+### Preview features
+
+- \[`fastapi`\] Implement `fast-api-unused-path-parameter` (`FAST003`) ([#12638](https://github.com/astral-sh/ruff/pull/12638))
+
+### Rule changes
+
+- \[`pylint`\] Rename `too-many-positional` to `too-many-positional-arguments` (`R0917`) ([#12905](https://github.com/astral-sh/ruff/pull/12905))
+
+### Server
+
+- Fix crash when applying "fix-all" code-action to notebook cells ([#12929](https://github.com/astral-sh/ruff/pull/12929))
+
+### Other changes
+
+- \[`flake8-naming`\]: Respect import conventions (`N817`) ([#12922](https://github.com/astral-sh/ruff/pull/12922))
+
+## 0.6.2
+
+### Preview features
+
+- \[`flake8-simplify`\] Extend `open-file-with-context-handler` to work with other standard-library IO modules (`SIM115`) ([#12959](https://github.com/astral-sh/ruff/pull/12959))
+- \[`ruff`\] Avoid `unused-async` for functions with FastAPI route decorator (`RUF029`) ([#12938](https://github.com/astral-sh/ruff/pull/12938))
+- \[`ruff`\] Ignore `fstring-missing-syntax` (`RUF027`) for `fastAPI` paths ([#12939](https://github.com/astral-sh/ruff/pull/12939))
+- \[`ruff`\] Implement check for Decimal called with a float literal (RUF032) ([#12909](https://github.com/astral-sh/ruff/pull/12909))
+
+### Rule changes
+
+- \[`flake8-bugbear`\] Update diagnostic message when expression is at the end of function (`B015`) ([#12944](https://github.com/astral-sh/ruff/pull/12944))
+- \[`flake8-pyi`\] Skip type annotations in `string-or-bytes-too-long` (`PYI053`) ([#13002](https://github.com/astral-sh/ruff/pull/13002))
+- \[`flake8-type-checking`\] Always recognise relative imports as first-party ([#12994](https://github.com/astral-sh/ruff/pull/12994))
+- \[`flake8-unused-arguments`\] Ignore unused arguments on stub functions (`ARG001`) ([#12966](https://github.com/astral-sh/ruff/pull/12966))
+- \[`pylint`\] Ignore augmented assignment for `self-cls-assignment` (`PLW0642`) ([#12957](https://github.com/astral-sh/ruff/pull/12957))
+
+### Server
+
+- Show full context in error log messages ([#13029](https://github.com/astral-sh/ruff/pull/13029))
+
+### Bug fixes
+
+- \[`pep8-naming`\] Don't flag `from` imports following conventional import names (`N817`) ([#12946](https://github.com/astral-sh/ruff/pull/12946))
+- \[`pylint`\] - Allow `__new__` methods to have `cls` as their first argument even if decorated with `@staticmethod` for `bad-staticmethod-argument` (`PLW0211`) ([#12958](https://github.com/astral-sh/ruff/pull/12958))
+
+### Documentation
+
+- Add `hyperfine` installation instructions; update `hyperfine` code samples ([#13034](https://github.com/astral-sh/ruff/pull/13034))
+- Expand note to use Ruff with other language server in Kate ([#12806](https://github.com/astral-sh/ruff/pull/12806))
+- Update example for `PT001` as per the new default behavior ([#13019](https://github.com/astral-sh/ruff/pull/13019))
+- \[`perflint`\] Improve docs for `try-except-in-loop` (`PERF203`) ([#12947](https://github.com/astral-sh/ruff/pull/12947))
+- \[`pydocstyle`\] Add reference to `lint.pydocstyle.ignore-decorators` setting to rule docs ([#12996](https://github.com/astral-sh/ruff/pull/12996))
+
+## 0.6.3
+
+### Preview features
+
+- \[`flake8-simplify`\] Extend `open-file-with-context-handler` to work with `dbm.sqlite3` (`SIM115`) ([#13104](https://github.com/astral-sh/ruff/pull/13104))
+- \[`pycodestyle`\] Disable `E741` in stub files (`.pyi`) ([#13119](https://github.com/astral-sh/ruff/pull/13119))
+- \[`pydoclint`\] Avoid `DOC201` on explicit returns in functions that only return `None` ([#13064](https://github.com/astral-sh/ruff/pull/13064))
+
+### Rule changes
+
+- \[`flake8-async`\] Disable check for `asyncio` before Python 3.11 (`ASYNC109`) ([#13023](https://github.com/astral-sh/ruff/pull/13023))
+
+### Bug fixes
+
+- \[`FastAPI`\] Avoid introducing invalid syntax in fix for `fast-api-non-annotated-dependency` (`FAST002`) ([#13133](https://github.com/astral-sh/ruff/pull/13133))
+- \[`flake8-implicit-str-concat`\] Normalize octals before merging concatenated strings in `single-line-implicit-string-concatenation` (`ISC001`) ([#13118](https://github.com/astral-sh/ruff/pull/13118))
+- \[`flake8-pytest-style`\] Improve help message for `pytest-incorrect-mark-parentheses-style` (`PT023`) ([#13092](https://github.com/astral-sh/ruff/pull/13092))
+- \[`pylint`\] Avoid autofix for calls that aren't `min` or `max` as starred expression (`PLW3301`) ([#13089](https://github.com/astral-sh/ruff/pull/13089))
+- \[`ruff`\] Add `datetime.time`, `datetime.tzinfo`, and `datetime.timezone` as immutable function calls (`RUF009`) ([#13109](https://github.com/astral-sh/ruff/pull/13109))
+- \[`ruff`\] Extend comment deletion for `RUF100` to include trailing text from `noqa` directives while preserving any following comments on the same line, if any ([#13105](https://github.com/astral-sh/ruff/pull/13105))
+- Fix dark theme on initial page load for the Ruff playground ([#13077](https://github.com/astral-sh/ruff/pull/13077))
+
+## 0.6.4
+
+### Preview features
+
+- \[`flake8-builtins`\] Use dynamic builtins list based on Python version ([#13172](https://github.com/astral-sh/ruff/pull/13172))
+- \[`pydoclint`\] Permit yielding `None` in `DOC402` and `DOC403` ([#13148](https://github.com/astral-sh/ruff/pull/13148))
+- \[`pylint`\] Update diagnostic message for `PLW3201` ([#13194](https://github.com/astral-sh/ruff/pull/13194))
+- \[`ruff`\] Implement `post-init-default` (`RUF033`) ([#13192](https://github.com/astral-sh/ruff/pull/13192))
+- \[`ruff`\] Implement useless if-else (`RUF034`) ([#13218](https://github.com/astral-sh/ruff/pull/13218))
+
+### Rule changes
+
+- \[`flake8-pyi`\] Respect `pep8_naming.classmethod-decorators` settings when determining if a method is a classmethod in `custom-type-var-return-type` (`PYI019`) ([#13162](https://github.com/astral-sh/ruff/pull/13162))
+- \[`flake8-pyi`\] Teach various rules that annotations might be stringized ([#12951](https://github.com/astral-sh/ruff/pull/12951))
+- \[`pylint`\] Avoid `no-self-use` for `attrs`-style validators ([#13166](https://github.com/astral-sh/ruff/pull/13166))
+- \[`pylint`\] Recurse into subscript subexpressions when searching for list/dict lookups (`PLR1733`, `PLR1736`) ([#13186](https://github.com/astral-sh/ruff/pull/13186))
+- \[`pyupgrade`\] Detect `aiofiles.open` calls in `UP015` ([#13173](https://github.com/astral-sh/ruff/pull/13173))
+- \[`pyupgrade`\] Mark `sys.version_info[0] < 3` and similar comparisons as outdated (`UP036`) ([#13175](https://github.com/astral-sh/ruff/pull/13175))
+
+### CLI
+
+- Enrich messages of SARIF results ([#13180](https://github.com/astral-sh/ruff/pull/13180))
+- Handle singular case for incompatible rules warning in `ruff format` output ([#13212](https://github.com/astral-sh/ruff/pull/13212))
+
+### Bug fixes
+
+- \[`pydocstyle`\] Improve heuristics for detecting Google-style docstrings ([#13142](https://github.com/astral-sh/ruff/pull/13142))
+- \[`refurb`\] Treat `sep` arguments with effects as unsafe removals (`FURB105`) ([#13165](https://github.com/astral-sh/ruff/pull/13165))
+
+## 0.6.5
+
+### Preview features
+
+- \[`pydoclint`\] Ignore `DOC201` when function name is "**new**" ([#13300](https://github.com/astral-sh/ruff/pull/13300))
+- \[`refurb`\] Implement `slice-to-remove-prefix-or-suffix` (`FURB188`) ([#13256](https://github.com/astral-sh/ruff/pull/13256))
+
+### Rule changes
+
+- \[`eradicate`\] Ignore script-comments with multiple end-tags (`ERA001`) ([#13283](https://github.com/astral-sh/ruff/pull/13283))
+- \[`pyflakes`\] Improve error message for `UndefinedName` when a builtin was added in a newer version than specified in Ruff config (`F821`) ([#13293](https://github.com/astral-sh/ruff/pull/13293))
+
+### Server
+
+- Add support for extensionless Python files for server ([#13326](https://github.com/astral-sh/ruff/pull/13326))
+- Fix configuration inheritance for configurations specified in the LSP settings ([#13285](https://github.com/astral-sh/ruff/pull/13285))
+
+### Bug fixes
+
+- \[`ruff`\] Handle unary operators in `decimal-from-float-literal` (`RUF032`) ([#13275](https://github.com/astral-sh/ruff/pull/13275))
+
+### CLI
+
+- Only include rules with diagnostics in SARIF metadata ([#13268](https://github.com/astral-sh/ruff/pull/13268))
+
+### Playground
+
+- Add "Copy as pyproject.toml/ruff.toml" and "Paste from TOML" ([#13328](https://github.com/astral-sh/ruff/pull/13328))
+- Fix errors not shown for restored snippet on page load ([#13262](https://github.com/astral-sh/ruff/pull/13262))
+
+## 0.6.6
+
+### Preview features
+
+- \[`refurb`\] Skip `slice-to-remove-prefix-or-suffix` (`FURB188`) when non-trivial slice steps are present ([#13405](https://github.com/astral-sh/ruff/pull/13405))
+- Add a subcommand to generate dependency graphs ([#13402](https://github.com/astral-sh/ruff/pull/13402))
+
+### Formatter
+
+- Fix placement of inline parameter comments ([#13379](https://github.com/astral-sh/ruff/pull/13379))
+
+### Server
+
+- Fix off-by one error in the `LineIndex::offset` calculation ([#13407](https://github.com/astral-sh/ruff/pull/13407))
+
+### Bug fixes
+
+- \[`fastapi`\] Respect FastAPI aliases in route definitions ([#13394](https://github.com/astral-sh/ruff/pull/13394))
+- \[`pydocstyle`\] Respect word boundaries when detecting function signature in docs ([#13388](https://github.com/astral-sh/ruff/pull/13388))
+
+### Documentation
+
+- Add backlinks to rule overview linter ([#13368](https://github.com/astral-sh/ruff/pull/13368))
+- Fix documentation for editor vim plugin ALE ([#13348](https://github.com/astral-sh/ruff/pull/13348))
+- Fix rendering of `FURB188` docs ([#13406](https://github.com/astral-sh/ruff/pull/13406))
+
+## 0.6.7
+
+### Preview features
+
+- Add Python version support to ruff analyze CLI ([#13426](https://github.com/astral-sh/ruff/pull/13426))
+- Add `exclude` support to `ruff analyze` ([#13425](https://github.com/astral-sh/ruff/pull/13425))
+- Fix parentheses around return type annotations ([#13381](https://github.com/astral-sh/ruff/pull/13381))
+
+### Rule changes
+
+- \[`pycodestyle`\] Fix: Don't autofix if the first line ends in a question mark? (D400) ([#13399](https://github.com/astral-sh/ruff/pull/13399))
+
+### Bug fixes
+
+- Respect `lint.exclude` in ruff check `--add-noqa` ([#13427](https://github.com/astral-sh/ruff/pull/13427))
+
+### Performance
+
+- Avoid tracking module resolver files in Salsa ([#13437](https://github.com/astral-sh/ruff/pull/13437))
+- Use `forget` for module resolver database ([#13438](https://github.com/astral-sh/ruff/pull/13438))
+
+## 0.6.8
+
+### Preview features
+
+- Remove unnecessary parentheses around `match case` clauses ([#13510](https://github.com/astral-sh/ruff/pull/13510))
+- Parenthesize overlong `if` guards in `match..case` clauses ([#13513](https://github.com/astral-sh/ruff/pull/13513))
+- Detect basic wildcard imports in `ruff analyze graph` ([#13486](https://github.com/astral-sh/ruff/pull/13486))
+- \[`pylint`\] Implement `boolean-chained-comparison` (`R1716`) ([#13435](https://github.com/astral-sh/ruff/pull/13435))
+
+### Rule changes
+
+- \[`lake8-simplify`\] Detect `SIM910` when using variadic keyword arguments, i.e., `**kwargs` ([#13503](https://github.com/astral-sh/ruff/pull/13503))
+- \[`pyupgrade`\] Avoid false negatives with non-reference shadowed bindings of loop variables (`UP028`) ([#13504](https://github.com/astral-sh/ruff/pull/13504))
+
+### Bug fixes
+
+- Detect tuples bound to variadic positional arguments i.e. `*args` ([#13512](https://github.com/astral-sh/ruff/pull/13512))
+- Exit gracefully on broken pipe errors ([#13485](https://github.com/astral-sh/ruff/pull/13485))
+- Avoid panic when analyze graph hits broken pipe ([#13484](https://github.com/astral-sh/ruff/pull/13484))
+
+### Performance
+
+- Reuse `BTreeSets` in module resolver ([#13440](https://github.com/astral-sh/ruff/pull/13440))
+- Skip traversal for non-compound statements ([#13441](https://github.com/astral-sh/ruff/pull/13441))
+
+## 0.6.9
+
+### Preview features
+
+- Fix codeblock dynamic line length calculation for indented docstring examples ([#13523](https://github.com/astral-sh/ruff/pull/13523))
+- \[`refurb`\] Mark `FURB118` fix as unsafe ([#13613](https://github.com/astral-sh/ruff/pull/13613))
+
+### Rule changes
+
+- \[`pydocstyle`\] Don't raise `D208` when last line is non-empty ([#13372](https://github.com/astral-sh/ruff/pull/13372))
+- \[`pylint`\] Preserve trivia (i.e. comments) in `PLR5501` autofix ([#13573](https://github.com/astral-sh/ruff/pull/13573))
+
+### Configuration
+
+- \[`pyflakes`\] Add `allow-unused-imports` setting for `unused-import` rule (`F401`) ([#13601](https://github.com/astral-sh/ruff/pull/13601))
+
+### Bug fixes
+
+- Support ruff discovery in pip build environments ([#13591](https://github.com/astral-sh/ruff/pull/13591))
+- \[`flake8-bugbear`\] Avoid short circuiting `B017` for multiple context managers ([#13609](https://github.com/astral-sh/ruff/pull/13609))
+- \[`pylint`\] Do not offer an invalid fix for `PLR1716` when the comparisons contain parenthesis ([#13527](https://github.com/astral-sh/ruff/pull/13527))
+- \[`pyupgrade`\] Fix `UP043` to apply to `collections.abc.Generator` and `collections.abc.AsyncGenerator` ([#13611](https://github.com/astral-sh/ruff/pull/13611))
+- \[`refurb`\] Fix handling of slices in tuples for `FURB118`, e.g., `x[:, 1]` ([#13518](https://github.com/astral-sh/ruff/pull/13518))
+
+### Documentation
+
+- Update GitHub Action link to `astral-sh/ruff-action` ([#13551](https://github.com/astral-sh/ruff/pull/13551))

changelogs/0.7.x.md

@@ -0,0 +1,185 @@
+# Changelog 0.7.x
+
+## 0.7.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.7.0) for a migration guide and overview of the changes!
+
+### Breaking changes
+
+- The pytest rules `PT001` and `PT023` now default to omitting the decorator parentheses when there are no arguments
+    ([#12838](https://github.com/astral-sh/ruff/pull/12838), [#13292](https://github.com/astral-sh/ruff/pull/13292)).
+    This was a change that we attempted to make in Ruff v0.6.0, but only partially made due to an error on our part.
+    See the [blog post](https://astral.sh/blog/ruff-v0.7.0) for more details.
+- The `useless-try-except` rule (in our `tryceratops` category) has been recoded from `TRY302` to
+    `TRY203` ([#13502](https://github.com/astral-sh/ruff/pull/13502)). This ensures Ruff's code is consistent with
+    the same rule in the [`tryceratops`](https://github.com/guilatrova/tryceratops) linter.
+- The `lint.allow-unused-imports` setting has been removed ([#13677](https://github.com/astral-sh/ruff/pull/13677)). Use
+    [`lint.pyflakes.allow-unused-imports`](https://docs.astral.sh/ruff/settings/#lint_pyflakes_allowed-unused-imports)
+    instead.
+
+### Formatter preview style
+
+- Normalize implicit concatenated f-string quotes per part ([#13539](https://github.com/astral-sh/ruff/pull/13539))
+
+### Preview linter features
+
+- \[`refurb`\] implement `hardcoded-string-charset` (FURB156) ([#13530](https://github.com/astral-sh/ruff/pull/13530))
+- \[`refurb`\] Count codepoints not bytes for `slice-to-remove-prefix-or-suffix (FURB188)` ([#13631](https://github.com/astral-sh/ruff/pull/13631))
+
+### Rule changes
+
+- \[`pylint`\] Mark `PLE1141` fix as unsafe ([#13629](https://github.com/astral-sh/ruff/pull/13629))
+- \[`flake8-async`\] Consider async generators to be "checkpoints" for `cancel-scope-no-checkpoint` (`ASYNC100`) ([#13639](https://github.com/astral-sh/ruff/pull/13639))
+- \[`flake8-bugbear`\] Do not suggest setting parameter `strict=` to `False` in `B905` diagnostic message ([#13656](https://github.com/astral-sh/ruff/pull/13656))
+- \[`flake8-todos`\] Only flag the word "TODO", not words starting with "todo" (`TD006`) ([#13640](https://github.com/astral-sh/ruff/pull/13640))
+- \[`pycodestyle`\] Fix whitespace-related false positives and false negatives inside type-parameter lists (`E231`, `E251`) ([#13704](https://github.com/astral-sh/ruff/pull/13704))
+- \[`flake8-simplify`\] Stabilize preview behavior for `SIM115` so that the rule can detect files
+    being opened from a wider range of standard-library functions ([#12959](https://github.com/astral-sh/ruff/pull/12959)).
+
+### CLI
+
+- Add explanation of fixable in `--statistics` command ([#13774](https://github.com/astral-sh/ruff/pull/13774))
+
+### Bug fixes
+
+- \[`pyflakes`\] Allow `ipytest` cell magic (`F401`) ([#13745](https://github.com/astral-sh/ruff/pull/13745))
+- \[`flake8-use-pathlib`\] Fix `PTH123` false positive when `open` is passed a file descriptor ([#13616](https://github.com/astral-sh/ruff/pull/13616))
+- \[`flake8-bandit`\] Detect patterns from multi line SQL statements (`S608`) ([#13574](https://github.com/astral-sh/ruff/pull/13574))
+- \[`flake8-pyi`\] - Fix dropped expressions in `PYI030` autofix ([#13727](https://github.com/astral-sh/ruff/pull/13727))
+
+## 0.7.1
+
+### Preview features
+
+- Fix `E221` and `E222` to flag missing or extra whitespace around `==` operator ([#13890](https://github.com/astral-sh/ruff/pull/13890))
+- Formatter: Alternate quotes for strings inside f-strings in preview ([#13860](https://github.com/astral-sh/ruff/pull/13860))
+- Formatter: Join implicit concatenated strings when they fit on a line ([#13663](https://github.com/astral-sh/ruff/pull/13663))
+- \[`pylint`\] Restrict `iteration-over-set` to only work on sets of literals (`PLC0208`) ([#13731](https://github.com/astral-sh/ruff/pull/13731))
+
+### Rule changes
+
+- \[`flake8-type-checking`\] Support auto-quoting when annotations contain quotes ([#11811](https://github.com/astral-sh/ruff/pull/11811))
+
+### Server
+
+- Avoid indexing the workspace for single-file mode ([#13770](https://github.com/astral-sh/ruff/pull/13770))
+
+### Bug fixes
+
+- Make `ARG002` compatible with `EM101` when raising `NotImplementedError` ([#13714](https://github.com/astral-sh/ruff/pull/13714))
+
+### Other changes
+
+- Introduce more Docker tags for Ruff (similar to uv) ([#13274](https://github.com/astral-sh/ruff/pull/13274))
+
+## 0.7.2
+
+### Preview features
+
+- Fix formatting of single with-item with trailing comment ([#14005](https://github.com/astral-sh/ruff/pull/14005))
+- \[`pyupgrade`\] Add PEP 646 `Unpack` conversion to `*` with fix (`UP044`) ([#13988](https://github.com/astral-sh/ruff/pull/13988))
+
+### Rule changes
+
+- Regenerate `known_stdlibs.rs` with stdlibs 2024.10.25 ([#13963](https://github.com/astral-sh/ruff/pull/13963))
+- \[`flake8-no-pep420`\] Skip namespace package enforcement for PEP 723 scripts (`INP001`) ([#13974](https://github.com/astral-sh/ruff/pull/13974))
+
+### Server
+
+- Fix server panic when undoing an edit ([#14010](https://github.com/astral-sh/ruff/pull/14010))
+
+### Bug fixes
+
+- Fix issues in discovering ruff in pip build environments ([#13881](https://github.com/astral-sh/ruff/pull/13881))
+- \[`flake8-type-checking`\] Fix false positive for `singledispatchmethod` (`TCH003`) ([#13941](https://github.com/astral-sh/ruff/pull/13941))
+- \[`flake8-type-checking`\] Treat return type of `singledispatch` as runtime-required (`TCH003`) ([#13957](https://github.com/astral-sh/ruff/pull/13957))
+
+### Documentation
+
+- \[`flake8-simplify`\] Include caveats of enabling `if-else-block-instead-of-if-exp` (`SIM108`) ([#14019](https://github.com/astral-sh/ruff/pull/14019))
+
+## 0.7.3
+
+### Preview features
+
+- Formatter: Disallow single-line implicit concatenated strings ([#13928](https://github.com/astral-sh/ruff/pull/13928))
+- \[`flake8-pyi`\] Include all Python file types for `PYI006` and `PYI066` ([#14059](https://github.com/astral-sh/ruff/pull/14059))
+- \[`flake8-simplify`\] Implement `split-of-static-string` (`SIM905`) ([#14008](https://github.com/astral-sh/ruff/pull/14008))
+- \[`refurb`\] Implement `subclass-builtin` (`FURB189`) ([#14105](https://github.com/astral-sh/ruff/pull/14105))
+- \[`ruff`\] Improve diagnostic messages and docs (`RUF031`, `RUF032`, `RUF034`) ([#14068](https://github.com/astral-sh/ruff/pull/14068))
+
+### Rule changes
+
+- Detect items that hash to same value in duplicate sets (`B033`, `PLC0208`) ([#14064](https://github.com/astral-sh/ruff/pull/14064))
+- \[`eradicate`\] Better detection of IntelliJ language injection comments (`ERA001`) ([#14094](https://github.com/astral-sh/ruff/pull/14094))
+- \[`flake8-pyi`\] Add autofix for `docstring-in-stub` (`PYI021`) ([#14150](https://github.com/astral-sh/ruff/pull/14150))
+- \[`flake8-pyi`\] Update `duplicate-literal-member` (`PYI062`) to always provide an autofix ([#14188](https://github.com/astral-sh/ruff/pull/14188))
+- \[`pyflakes`\] Detect items that hash to same value in duplicate dictionaries (`F601`) ([#14065](https://github.com/astral-sh/ruff/pull/14065))
+- \[`ruff`\] Fix false positive for decorators (`RUF028`) ([#14061](https://github.com/astral-sh/ruff/pull/14061))
+
+### Bug fixes
+
+- Avoid parsing joint rule codes as distinct codes in `# noqa` ([#12809](https://github.com/astral-sh/ruff/pull/12809))
+- \[`eradicate`\] ignore `# language=` in commented-out-code rule (ERA001) ([#14069](https://github.com/astral-sh/ruff/pull/14069))
+- \[`flake8-bugbear`\] - do not run `mutable-argument-default` on stubs (`B006`) ([#14058](https://github.com/astral-sh/ruff/pull/14058))
+- \[`flake8-builtins`\] Skip lambda expressions in `builtin-argument-shadowing (A002)` ([#14144](https://github.com/astral-sh/ruff/pull/14144))
+- \[`flake8-comprehension`\] Also remove trailing comma while fixing `C409` and `C419` ([#14097](https://github.com/astral-sh/ruff/pull/14097))
+- \[`flake8-simplify`\] Allow `open` without context manager in `return` statement (`SIM115`) ([#14066](https://github.com/astral-sh/ruff/pull/14066))
+- \[`pylint`\] Respect hash-equivalent literals in `iteration-over-set` (`PLC0208`) ([#14063](https://github.com/astral-sh/ruff/pull/14063))
+- \[`pylint`\] Update known dunder methods for Python 3.13 (`PLW3201`) ([#14146](https://github.com/astral-sh/ruff/pull/14146))
+- \[`pyupgrade`\] - ignore kwarg unpacking for `UP044` ([#14053](https://github.com/astral-sh/ruff/pull/14053))
+- \[`refurb`\] Parse more exotic decimal strings in `verbose-decimal-constructor` (`FURB157`) ([#14098](https://github.com/astral-sh/ruff/pull/14098))
+
+### Documentation
+
+- Add links to missing related options within rule documentations ([#13971](https://github.com/astral-sh/ruff/pull/13971))
+- Add rule short code to mkdocs tags to allow searching via rule codes ([#14040](https://github.com/astral-sh/ruff/pull/14040))
+
+## 0.7.4
+
+### Preview features
+
+- \[`flake8-datetimez`\] Detect usages of `datetime.max`/`datetime.min` (`DTZ901`) ([#14288](https://github.com/astral-sh/ruff/pull/14288))
+- \[`flake8-logging`\] Implement `root-logger-calls` (`LOG015`) ([#14302](https://github.com/astral-sh/ruff/pull/14302))
+- \[`flake8-no-pep420`\] Detect empty implicit namespace packages (`INP001`) ([#14236](https://github.com/astral-sh/ruff/pull/14236))
+- \[`flake8-pyi`\] Add "replace with `Self`" fix (`PYI019`) ([#14238](https://github.com/astral-sh/ruff/pull/14238))
+- \[`perflint`\] Implement quick-fix for `manual-list-comprehension` (`PERF401`) ([#13919](https://github.com/astral-sh/ruff/pull/13919))
+- \[`pylint`\] Implement `shallow-copy-environ` (`W1507`) ([#14241](https://github.com/astral-sh/ruff/pull/14241))
+- \[`ruff`\] Implement `none-not-at-end-of-union` (`RUF036`) ([#14314](https://github.com/astral-sh/ruff/pull/14314))
+- \[`ruff`\] Implementation `unsafe-markup-call` from `flake8-markupsafe` plugin (`RUF035`) ([#14224](https://github.com/astral-sh/ruff/pull/14224))
+- \[`ruff`\] Report problems for `attrs` dataclasses (`RUF008`, `RUF009`) ([#14327](https://github.com/astral-sh/ruff/pull/14327))
+
+### Rule changes
+
+- \[`flake8-boolean-trap`\] Exclude dunder methods that define operators (`FBT001`) ([#14203](https://github.com/astral-sh/ruff/pull/14203))
+- \[`flake8-pyi`\] Add "replace with `Self`" fix (`PYI034`) ([#14217](https://github.com/astral-sh/ruff/pull/14217))
+- \[`flake8-pyi`\] Always autofix `duplicate-union-members` (`PYI016`) ([#14270](https://github.com/astral-sh/ruff/pull/14270))
+- \[`flake8-pyi`\] Improve autofix for nested and mixed type unions for `unnecessary-type-union` (`PYI055`) ([#14272](https://github.com/astral-sh/ruff/pull/14272))
+- \[`flake8-pyi`\] Mark fix as unsafe when type annotation contains comments for `duplicate-literal-member` (`PYI062`) ([#14268](https://github.com/astral-sh/ruff/pull/14268))
+
+### Server
+
+- Use the current working directory to resolve settings from `ruff.configuration` ([#14352](https://github.com/astral-sh/ruff/pull/14352))
+
+### Bug fixes
+
+- Avoid conflicts between `PLC014` (`useless-import-alias`) and `I002` (`missing-required-import`) by considering `lint.isort.required-imports` for `PLC014` ([#14287](https://github.com/astral-sh/ruff/pull/14287))
+- \[`flake8-type-checking`\] Skip quoting annotation if it becomes invalid syntax (`TCH001`)
+- \[`flake8-pyi`\] Avoid using `typing.Self` in stub files pre-Python 3.11 (`PYI034`) ([#14230](https://github.com/astral-sh/ruff/pull/14230))
+- \[`flake8-pytest-style`\] Flag `pytest.raises` call with keyword argument `expected_exception` (`PT011`) ([#14298](https://github.com/astral-sh/ruff/pull/14298))
+- \[`flake8-simplify`\] Infer "unknown" truthiness for literal iterables whose items are all unpacks (`SIM222`) ([#14263](https://github.com/astral-sh/ruff/pull/14263))
+- \[`flake8-type-checking`\] Fix false positives for `typing.Annotated` (`TCH001`) ([#14311](https://github.com/astral-sh/ruff/pull/14311))
+- \[`pylint`\] Allow `await` at the top-level scope of a notebook (`PLE1142`) ([#14225](https://github.com/astral-sh/ruff/pull/14225))
+- \[`pylint`\] Fix miscellaneous issues in `await-outside-async` detection (`PLE1142`) ([#14218](https://github.com/astral-sh/ruff/pull/14218))
+- \[`pyupgrade`\] Avoid applying PEP 646 rewrites in invalid contexts (`UP044`) ([#14234](https://github.com/astral-sh/ruff/pull/14234))
+- \[`pyupgrade`\] Detect permutations in redundant open modes (`UP015`) ([#14255](https://github.com/astral-sh/ruff/pull/14255))
+- \[`refurb`\] Avoid triggering `hardcoded-string-charset` for reordered sets (`FURB156`) ([#14233](https://github.com/astral-sh/ruff/pull/14233))
+- \[`refurb`\] Further special cases added to `verbose-decimal-constructor` (`FURB157`) ([#14216](https://github.com/astral-sh/ruff/pull/14216))
+- \[`refurb`\] Use `UserString` instead of non-existent `UserStr` (`FURB189`) ([#14209](https://github.com/astral-sh/ruff/pull/14209))
+- \[`ruff`\] Avoid treating lowercase letters as `# noqa` codes (`RUF100`) ([#14229](https://github.com/astral-sh/ruff/pull/14229))
+- \[`ruff`\] Do not report when `Optional` has no type arguments (`RUF013`) ([#14181](https://github.com/astral-sh/ruff/pull/14181))
+
+### Documentation
+
+- Add "Notebook behavior" section for `F704`, `PLE1142` ([#14266](https://github.com/astral-sh/ruff/pull/14266))
+- Document comment policy around fix safety ([#14300](https://github.com/astral-sh/ruff/pull/14300))

changelogs/0.8.x.md

@@ -0,0 +1,304 @@
+# Changelog 0.8.x
+
+## 0.8.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.8.0) for a migration guide and overview of the changes!
+
+### Breaking changes
+
+See also, the "Remapped rules" section which may result in disabled rules.
+
+- **Default to Python 3.9**
+
+    Ruff now defaults to Python 3.9 instead of 3.8 if no explicit Python version is configured using [`ruff.target-version`](https://docs.astral.sh/ruff/settings/#target-version) or [`project.requires-python`](https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#python-requires) ([#13896](https://github.com/astral-sh/ruff/pull/13896))
+
+- **Changed location of `pydoclint` diagnostics**
+
+    [`pydoclint`](https://docs.astral.sh/ruff/rules/#pydoclint-doc) diagnostics now point to the first-line of the problematic docstring. Previously, this was not the case.
+
+    If you've opted into these preview rules but have them suppressed using
+    [`noqa`](https://docs.astral.sh/ruff/linter/#error-suppression) comments in
+    some places, this change may mean that you need to move the `noqa` suppression
+    comments. Most users should be unaffected by this change.
+
+- **Use XDG (i.e. `~/.local/bin`) instead of the Cargo home directory in the standalone installer**
+
+    Previously, Ruff's installer used `$CARGO_HOME` or `~/.cargo/bin` for its target install directory. Now, Ruff will be installed into `$XDG_BIN_HOME`, `$XDG_DATA_HOME/../bin`, or `~/.local/bin` (in that order).
+
+    This change is only relevant to users of the standalone Ruff installer (using the shell or PowerShell script). If you installed Ruff using uv or pip, you should be unaffected.
+
+- **Changes to the line width calculation**
+
+    Ruff now uses a new version of the [unicode-width](https://github.com/unicode-rs/unicode-width) Rust crate to calculate the line width. In very rare cases, this may lead to lines containing Unicode characters being reformatted, or being considered too long when they were not before ([`E501`](https://docs.astral.sh/ruff/rules/line-too-long/)).
+
+### Removed Rules
+
+The following deprecated rules have been removed:
+
+- [`missing-type-self`](https://docs.astral.sh/ruff/rules/missing-type-self/) (`ANN101`)
+- [`missing-type-cls`](https://docs.astral.sh/ruff/rules/missing-type-cls/) (`ANN102`)
+- [`syntax-error`](https://docs.astral.sh/ruff/rules/syntax-error/) (`E999`)
+- [`pytest-missing-fixture-name-underscore`](https://docs.astral.sh/ruff/rules/pytest-missing-fixture-name-underscore/) (`PT004`)
+- [`pytest-incorrect-fixture-name-underscore`](https://docs.astral.sh/ruff/rules/pytest-incorrect-fixture-name-underscore/) (`PT005`)
+- [`unpacked-list-comprehension`](https://docs.astral.sh/ruff/rules/unpacked-list-comprehension/) (`UP027`)
+
+### Remapped rules
+
+The following rules have been remapped to new rule codes:
+
+- [`flake8-type-checking`](https://docs.astral.sh/ruff/rules/#flake8-type-checking-tc): `TCH` to `TC`
+
+### Stabilization
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`builtin-import-shadowing`](https://docs.astral.sh/ruff/rules/builtin-import-shadowing/) (`A004`)
+- [`mutable-contextvar-default`](https://docs.astral.sh/ruff/rules/mutable-contextvar-default/) (`B039`)
+- [`fast-api-redundant-response-model`](https://docs.astral.sh/ruff/rules/fast-api-redundant-response-model/) (`FAST001`)
+- [`fast-api-non-annotated-dependency`](https://docs.astral.sh/ruff/rules/fast-api-non-annotated-dependency/) (`FAST002`)
+- [`dict-index-missing-items`](https://docs.astral.sh/ruff/rules/dict-index-missing-items/) (`PLC0206`)
+- [`pep484-style-positional-only-parameter`](https://docs.astral.sh/ruff/rules/pep484-style-positional-only-parameter/) (`PYI063`)
+- [`redundant-final-literal`](https://docs.astral.sh/ruff/rules/redundant-final-literal/) (`PYI064`)
+- [`bad-version-info-order`](https://docs.astral.sh/ruff/rules/bad-version-info-order/) (`PYI066`)
+- [`parenthesize-chained-operators`](https://docs.astral.sh/ruff/rules/parenthesize-chained-operators/) (`RUF021`)
+- [`unsorted-dunder-all`](https://docs.astral.sh/ruff/rules/unsorted-dunder-all/) (`RUF022`)
+- [`unsorted-dunder-slots`](https://docs.astral.sh/ruff/rules/unsorted-dunder-slots/) (`RUF023`)
+- [`assert-with-print-message`](https://docs.astral.sh/ruff/rules/assert-with-print-message/) (`RUF030`)
+- [`unnecessary-default-type-args`](https://docs.astral.sh/ruff/rules/unnecessary-default-type-args/) (`UP043`)
+
+The following behaviors have been stabilized:
+
+- [`ambiguous-variable-name`](https://docs.astral.sh/ruff/rules/ambiguous-variable-name/) (`E741`): Violations in stub files are now ignored. Stub authors typically don't control variable names.
+- [`printf-string-formatting`](https://docs.astral.sh/ruff/rules/printf-string-formatting/) (`UP031`): Report all `printf`-like usages even if no autofix is available
+
+The following fixes have been stabilized:
+
+- [`zip-instead-of-pairwise`](https://docs.astral.sh/ruff/rules/zip-instead-of-pairwise/) (`RUF007`)
+
+### Preview features
+
+- \[`flake8-datetimez`\] Exempt `min.time()` and `max.time()` (`DTZ901`) ([#14394](https://github.com/astral-sh/ruff/pull/14394))
+- \[`flake8-pie`\] Mark fix as unsafe if the following statement is a string literal (`PIE790`) ([#14393](https://github.com/astral-sh/ruff/pull/14393))
+- \[`flake8-pyi`\] New rule `redundant-none-literal` (`PYI061`) ([#14316](https://github.com/astral-sh/ruff/pull/14316))
+- \[`flake8-pyi`\] Add autofix for `redundant-numeric-union` (`PYI041`) ([#14273](https://github.com/astral-sh/ruff/pull/14273))
+- \[`ruff`\] New rule `map-int-version-parsing` (`RUF048`) ([#14373](https://github.com/astral-sh/ruff/pull/14373))
+- \[`ruff`\] New rule `redundant-bool-literal` (`RUF038`) ([#14319](https://github.com/astral-sh/ruff/pull/14319))
+- \[`ruff`\] New rule `unraw-re-pattern` (`RUF039`) ([#14446](https://github.com/astral-sh/ruff/pull/14446))
+- \[`pycodestyle`\] Exempt `pytest.importorskip()` calls (`E402`) ([#14474](https://github.com/astral-sh/ruff/pull/14474))
+- \[`pylint`\] Autofix suggests using sets when possible (`PLR1714`) ([#14372](https://github.com/astral-sh/ruff/pull/14372))
+
+### Rule changes
+
+- [`invalid-pyproject-toml`](https://docs.astral.sh/ruff/rules/invalid-pyproject-toml/) (`RUF200`): Updated to reflect the provisionally accepted [PEP 639](https://peps.python.org/pep-0639/).
+- \[`flake8-pyi`\] Avoid panic in unfixable case (`PYI041`) ([#14402](https://github.com/astral-sh/ruff/pull/14402))
+- \[`flake8-type-checking`\] Correctly handle quotes in subscript expression when generating an autofix ([#14371](https://github.com/astral-sh/ruff/pull/14371))
+- \[`pylint`\] Suggest correct autofix for `__contains__` (`PLC2801`) ([#14424](https://github.com/astral-sh/ruff/pull/14424))
+
+### Configuration
+
+- Ruff now emits a warning instead of an error when a configuration [`ignore`](https://docs.astral.sh/ruff/settings/#lint_ignore)s a rule that has been removed ([#14435](https://github.com/astral-sh/ruff/pull/14435))
+- Ruff now validates that `lint.flake8-import-conventions.aliases` only uses valid module names and aliases ([#14477](https://github.com/astral-sh/ruff/pull/14477))
+
+## 0.8.1
+
+### Preview features
+
+- Formatter: Avoid invalid syntax for format-spec with quotes for all Python versions ([#14625](https://github.com/astral-sh/ruff/pull/14625))
+- Formatter: Consider quotes inside format-specs when choosing the quotes for an f-string ([#14493](https://github.com/astral-sh/ruff/pull/14493))
+- Formatter: Do not consider f-strings with escaped newlines as multiline ([#14624](https://github.com/astral-sh/ruff/pull/14624))
+- Formatter: Fix f-string formatting in assignment statement ([#14454](https://github.com/astral-sh/ruff/pull/14454))
+- Formatter: Fix unnecessary space around power operator (`**`) in overlong f-string expressions ([#14489](https://github.com/astral-sh/ruff/pull/14489))
+- \[`airflow`\] Avoid implicit `schedule` argument to `DAG` and `@dag` (`AIR301`) ([#14581](https://github.com/astral-sh/ruff/pull/14581))
+- \[`flake8-builtins`\] Exempt private built-in modules (`A005`) ([#14505](https://github.com/astral-sh/ruff/pull/14505))
+- \[`flake8-pytest-style`\] Fix `pytest.mark.parametrize` rules to check calls instead of decorators ([#14515](https://github.com/astral-sh/ruff/pull/14515))
+- \[`flake8-type-checking`\] Implement `runtime-cast-value` (`TC006`) ([#14511](https://github.com/astral-sh/ruff/pull/14511))
+- \[`flake8-type-checking`\] Implement `unquoted-type-alias` (`TC007`) and `quoted-type-alias` (`TC008`) ([#12927](https://github.com/astral-sh/ruff/pull/12927))
+- \[`flake8-use-pathlib`\] Recommend `Path.iterdir()` over `os.listdir()` (`PTH208`) ([#14509](https://github.com/astral-sh/ruff/pull/14509))
+- \[`pylint`\] Extend `invalid-envvar-default` to detect `os.environ.get` (`PLW1508`) ([#14512](https://github.com/astral-sh/ruff/pull/14512))
+- \[`pylint`\] Implement `len-test` (`PLC1802`) ([#14309](https://github.com/astral-sh/ruff/pull/14309))
+- \[`refurb`\] Fix bug where methods defined using lambdas were flagged by `FURB118` ([#14639](https://github.com/astral-sh/ruff/pull/14639))
+- \[`ruff`\] Auto-add `r` prefix when string has no backslashes for `unraw-re-pattern` (`RUF039`) ([#14536](https://github.com/astral-sh/ruff/pull/14536))
+- \[`ruff`\] Implement `invalid-assert-message-literal-argument` (`RUF040`) ([#14488](https://github.com/astral-sh/ruff/pull/14488))
+- \[`ruff`\] Implement `unnecessary-nested-literal` (`RUF041`) ([#14323](https://github.com/astral-sh/ruff/pull/14323))
+- \[`ruff`\] Implement `unnecessary-regular-expression` (`RUF055`) ([#14659](https://github.com/astral-sh/ruff/pull/14659))
+
+### Rule changes
+
+- Ignore more rules for stub files ([#14541](https://github.com/astral-sh/ruff/pull/14541))
+- \[`pep8-naming`\] Eliminate false positives for single-letter names (`N811`, `N814`) ([#14584](https://github.com/astral-sh/ruff/pull/14584))
+- \[`pyflakes`\] Avoid false positives in `@no_type_check` contexts (`F821`, `F722`) ([#14615](https://github.com/astral-sh/ruff/pull/14615))
+- \[`ruff`\] Detect redirected-noqa in file-level comments (`RUF101`) ([#14635](https://github.com/astral-sh/ruff/pull/14635))
+- \[`ruff`\] Mark fixes for `unsorted-dunder-all` and `unsorted-dunder-slots` as unsafe when there are complex comments in the sequence (`RUF022`, `RUF023`) ([#14560](https://github.com/astral-sh/ruff/pull/14560))
+
+### Bug fixes
+
+- Avoid fixing code to `None | None` for `redundant-none-literal` (`PYI061`) and `never-union` (`RUF020`) ([#14583](https://github.com/astral-sh/ruff/pull/14583), [#14589](https://github.com/astral-sh/ruff/pull/14589))
+- \[`flake8-bugbear`\] Fix `mutable-contextvar-default` to resolve annotated function calls properly (`B039`) ([#14532](https://github.com/astral-sh/ruff/pull/14532))
+- \[`flake8-pyi`, `ruff`\] Fix traversal of nested literals and unions (`PYI016`, `PYI051`, `PYI055`, `PYI062`, `RUF041`) ([#14641](https://github.com/astral-sh/ruff/pull/14641))
+- \[`flake8-pyi`\] Avoid rewriting invalid type expressions in `unnecessary-type-union` (`PYI055`) ([#14660](https://github.com/astral-sh/ruff/pull/14660))
+- \[`flake8-type-checking`\] Avoid syntax errors and type checking problem for quoted annotations autofix (`TC003`, `TC006`) ([#14634](https://github.com/astral-sh/ruff/pull/14634))
+- \[`pylint`\] Do not wrap function calls in parentheses in the fix for unnecessary-dunder-call (`PLC2801`) ([#14601](https://github.com/astral-sh/ruff/pull/14601))
+- \[`ruff`\] Handle `attrs`'s `auto_attribs` correctly (`RUF009`) ([#14520](https://github.com/astral-sh/ruff/pull/14520))
+
+## 0.8.2
+
+### Preview features
+
+- \[`airflow`\] Avoid deprecated values (`AIR302`) ([#14582](https://github.com/astral-sh/ruff/pull/14582))
+- \[`airflow`\] Extend removed names for `AIR302` ([#14734](https://github.com/astral-sh/ruff/pull/14734))
+- \[`ruff`\] Extend `unnecessary-regular-expression` to non-literal strings (`RUF055`) ([#14679](https://github.com/astral-sh/ruff/pull/14679))
+- \[`ruff`\] Implement `used-dummy-variable` (`RUF052`) ([#14611](https://github.com/astral-sh/ruff/pull/14611))
+- \[`ruff`\] Implement `unnecessary-cast-to-int` (`RUF046`) ([#14697](https://github.com/astral-sh/ruff/pull/14697))
+
+### Rule changes
+
+- \[`airflow`\] Check `AIR001` from builtin or providers `operators` module ([#14631](https://github.com/astral-sh/ruff/pull/14631))
+- \[`flake8-pytest-style`\] Remove `@` in `pytest.mark.parametrize` rule messages ([#14770](https://github.com/astral-sh/ruff/pull/14770))
+- \[`pandas-vet`\] Skip rules if the `panda` module hasn't been seen ([#14671](https://github.com/astral-sh/ruff/pull/14671))
+- \[`pylint`\] Fix false negatives for `ascii` and `sorted` in `len-as-condition` (`PLC1802`) ([#14692](https://github.com/astral-sh/ruff/pull/14692))
+- \[`refurb`\] Guard `hashlib` imports and mark `hashlib-digest-hex` fix as safe (`FURB181`) ([#14694](https://github.com/astral-sh/ruff/pull/14694))
+
+### Configuration
+
+- \[`flake8-import-conventions`\] Improve syntax check for aliases supplied in configuration for `unconventional-import-alias` (`ICN001`) ([#14745](https://github.com/astral-sh/ruff/pull/14745))
+
+### Bug fixes
+
+- Revert: [pyflakes] Avoid false positives in `@no_type_check` contexts (`F821`, `F722`) (#14615) ([#14726](https://github.com/astral-sh/ruff/pull/14726))
+- \[`pep8-naming`\] Avoid false positive for `class Bar(type(foo))` (`N804`) ([#14683](https://github.com/astral-sh/ruff/pull/14683))
+- \[`pycodestyle`\] Handle f-strings properly for `invalid-escape-sequence` (`W605`) ([#14748](https://github.com/astral-sh/ruff/pull/14748))
+- \[`pylint`\] Ignore `@overload` in `PLR0904` ([#14730](https://github.com/astral-sh/ruff/pull/14730))
+- \[`refurb`\] Handle non-finite decimals in `verbose-decimal-constructor` (`FURB157`) ([#14596](https://github.com/astral-sh/ruff/pull/14596))
+- \[`ruff`\] Avoid emitting `assignment-in-assert` when all references to the assigned variable are themselves inside `assert`s (`RUF018`) ([#14661](https://github.com/astral-sh/ruff/pull/14661))
+
+### Documentation
+
+- Improve docs for `flake8-use-pathlib` rules ([#14741](https://github.com/astral-sh/ruff/pull/14741))
+- Improve error messages and docs for `flake8-comprehensions` rules ([#14729](https://github.com/astral-sh/ruff/pull/14729))
+- \[`flake8-type-checking`\] Expands `TC006` docs to better explain itself ([#14749](https://github.com/astral-sh/ruff/pull/14749))
+
+## 0.8.3
+
+### Preview features
+
+- Fix fstring formatting removing overlong implicit concatenated string in expression part ([#14811](https://github.com/astral-sh/ruff/pull/14811))
+- \[`airflow`\] Add fix to remove deprecated keyword arguments (`AIR302`) ([#14887](https://github.com/astral-sh/ruff/pull/14887))
+- \[`airflow`\]: Extend rule to include deprecated names for Airflow 3.0 (`AIR302`) ([#14765](https://github.com/astral-sh/ruff/pull/14765) and [#14804](https://github.com/astral-sh/ruff/pull/14804))
+- \[`flake8-bugbear`\] Improve error messages for `except*` (`B025`, `B029`, `B030`, `B904`) ([#14815](https://github.com/astral-sh/ruff/pull/14815))
+- \[`flake8-bugbear`\] `itertools.batched()` without explicit `strict` (`B911`) ([#14408](https://github.com/astral-sh/ruff/pull/14408))
+- \[`flake8-use-pathlib`\] Dotless suffix passed to `Path.with_suffix()` (`PTH210`) ([#14779](https://github.com/astral-sh/ruff/pull/14779))
+- \[`pylint`\] Include parentheses and multiple comparators in check for `boolean-chained-comparison` (`PLR1716`) ([#14781](https://github.com/astral-sh/ruff/pull/14781))
+- \[`ruff`\] Do not simplify `round()` calls (`RUF046`) ([#14832](https://github.com/astral-sh/ruff/pull/14832))
+- \[`ruff`\] Don't emit `used-dummy-variable` on function parameters (`RUF052`) ([#14818](https://github.com/astral-sh/ruff/pull/14818))
+- \[`ruff`\] Implement `if-key-in-dict-del` (`RUF051`) ([#14553](https://github.com/astral-sh/ruff/pull/14553))
+- \[`ruff`\] Mark autofix for `RUF052` as always unsafe ([#14824](https://github.com/astral-sh/ruff/pull/14824))
+- \[`ruff`\] Teach autofix for `used-dummy-variable` about TypeVars etc. (`RUF052`) ([#14819](https://github.com/astral-sh/ruff/pull/14819))
+
+### Rule changes
+
+- \[`flake8-bugbear`\] Offer unsafe autofix for `no-explicit-stacklevel` (`B028`) ([#14829](https://github.com/astral-sh/ruff/pull/14829))
+- \[`flake8-pyi`\] Skip all type definitions in `string-or-bytes-too-long` (`PYI053`) ([#14797](https://github.com/astral-sh/ruff/pull/14797))
+- \[`pyupgrade`\] Do not report when a UTF-8 comment is followed by a non-UTF-8 one (`UP009`) ([#14728](https://github.com/astral-sh/ruff/pull/14728))
+- \[`pyupgrade`\] Mark fixes for `convert-typed-dict-functional-to-class` and `convert-named-tuple-functional-to-class` as unsafe if they will remove comments (`UP013`, `UP014`) ([#14842](https://github.com/astral-sh/ruff/pull/14842))
+
+### Bug fixes
+
+- Raise syntax error for mixing `except` and `except*` ([#14895](https://github.com/astral-sh/ruff/pull/14895))
+- \[`flake8-bugbear`\] Fix `B028` to allow `stacklevel` to be explicitly assigned as a positional argument ([#14868](https://github.com/astral-sh/ruff/pull/14868))
+- \[`flake8-bugbear`\] Skip `B028` if `warnings.warn` is called with `*args` or `**kwargs` ([#14870](https://github.com/astral-sh/ruff/pull/14870))
+- \[`flake8-comprehensions`\] Skip iterables with named expressions in `unnecessary-map` (`C417`) ([#14827](https://github.com/astral-sh/ruff/pull/14827))
+- \[`flake8-pyi`\] Also remove `self` and `cls`'s annotation (`PYI034`) ([#14801](https://github.com/astral-sh/ruff/pull/14801))
+- \[`flake8-pytest-style`\] Fix `pytest-parametrize-names-wrong-type` (`PT006`) to edit both `argnames` and `argvalues` if both of them are single-element tuples/lists ([#14699](https://github.com/astral-sh/ruff/pull/14699))
+- \[`perflint`\] Improve autofix for `PERF401` ([#14369](https://github.com/astral-sh/ruff/pull/14369))
+- \[`pylint`\] Fix `PLW1508` false positive for default string created via a mult operation ([#14841](https://github.com/astral-sh/ruff/pull/14841))
+
+## 0.8.4
+
+### Preview features
+
+- \[`airflow`\] Extend `AIR302` with additional functions and classes ([#15015](https://github.com/astral-sh/ruff/pull/15015))
+- \[`airflow`\] Implement `moved-to-provider-in-3` for modules that has been moved to Airflow providers (`AIR303`) ([#14764](https://github.com/astral-sh/ruff/pull/14764))
+- \[`flake8-use-pathlib`\] Extend check for invalid path suffix to include the case `"."` (`PTH210`) ([#14902](https://github.com/astral-sh/ruff/pull/14902))
+- \[`perflint`\] Fix panic in `PERF401` when list variable is after the `for` loop ([#14971](https://github.com/astral-sh/ruff/pull/14971))
+- \[`perflint`\] Simplify finding the loop target in `PERF401` ([#15025](https://github.com/astral-sh/ruff/pull/15025))
+- \[`pylint`\] Preserve original value format (`PLR6104`) ([#14978](https://github.com/astral-sh/ruff/pull/14978))
+- \[`ruff`\] Avoid false positives for `RUF027` for typing context bindings ([#15037](https://github.com/astral-sh/ruff/pull/15037))
+- \[`ruff`\] Check for ambiguous pattern passed to `pytest.raises()` (`RUF043`) ([#14966](https://github.com/astral-sh/ruff/pull/14966))
+
+### Rule changes
+
+- \[`flake8-bandit`\] Check `S105` for annotated assignment ([#15059](https://github.com/astral-sh/ruff/pull/15059))
+- \[`flake8-pyi`\] More autofixes for `redundant-none-literal` (`PYI061`) ([#14872](https://github.com/astral-sh/ruff/pull/14872))
+- \[`pydocstyle`\] Skip leading whitespace for `D403` ([#14963](https://github.com/astral-sh/ruff/pull/14963))
+- \[`ruff`\] Skip `SQLModel` base classes for `mutable-class-default` (`RUF012`) ([#14949](https://github.com/astral-sh/ruff/pull/14949))
+
+### Bug
+
+- \[`perflint`\] Parenthesize walrus expressions in autofix for `manual-list-comprehension` (`PERF401`) ([#15050](https://github.com/astral-sh/ruff/pull/15050))
+
+### Server
+
+- Check diagnostic refresh support from client capability which enables dynamic configuration for various editors ([#15014](https://github.com/astral-sh/ruff/pull/15014))
+
+## 0.8.5
+
+### Preview features
+
+- \[`airflow`\] Extend names moved from core to provider (`AIR303`) ([#15145](https://github.com/astral-sh/ruff/pull/15145), [#15159](https://github.com/astral-sh/ruff/pull/15159), [#15196](https://github.com/astral-sh/ruff/pull/15196), [#15216](https://github.com/astral-sh/ruff/pull/15216))
+- \[`airflow`\] Extend rule to check class attributes, methods, arguments (`AIR302`) ([#15054](https://github.com/astral-sh/ruff/pull/15054), [#15083](https://github.com/astral-sh/ruff/pull/15083))
+- \[`fastapi`\] Update `FAST002` to check keyword-only arguments ([#15119](https://github.com/astral-sh/ruff/pull/15119))
+- \[`flake8-type-checking`\] Disable `TC006` and `TC007` in stub files ([#15179](https://github.com/astral-sh/ruff/pull/15179))
+- \[`pylint`\] Detect nested methods correctly (`PLW1641`) ([#15032](https://github.com/astral-sh/ruff/pull/15032))
+- \[`ruff`\] Detect more strict-integer expressions (`RUF046`) ([#14833](https://github.com/astral-sh/ruff/pull/14833))
+- \[`ruff`\] Implement `falsy-dict-get-fallback` (`RUF056`) ([#15160](https://github.com/astral-sh/ruff/pull/15160))
+- \[`ruff`\] Implement `unnecessary-round` (`RUF057`) ([#14828](https://github.com/astral-sh/ruff/pull/14828))
+
+### Rule changes
+
+- Visit PEP 764 inline `TypedDict` keys as non-type-expressions ([#15073](https://github.com/astral-sh/ruff/pull/15073))
+- \[`flake8-comprehensions`\] Skip `C416` if comprehension contains unpacking ([#14909](https://github.com/astral-sh/ruff/pull/14909))
+- \[`flake8-pie`\] Allow `cast(SomeType, ...)` (`PIE796`) ([#15141](https://github.com/astral-sh/ruff/pull/15141))
+- \[`flake8-simplify`\] More precise inference for dictionaries (`SIM300`) ([#15164](https://github.com/astral-sh/ruff/pull/15164))
+- \[`flake8-use-pathlib`\] Catch redundant joins in `PTH201` and avoid syntax errors ([#15177](https://github.com/astral-sh/ruff/pull/15177))
+- \[`pycodestyle`\] Preserve original value format (`E731`) ([#15097](https://github.com/astral-sh/ruff/pull/15097))
+- \[`pydocstyle`\] Split on first whitespace character (`D403`) ([#15082](https://github.com/astral-sh/ruff/pull/15082))
+- \[`pyupgrade`\] Add all PEP-585 names to `UP006` rule ([#5454](https://github.com/astral-sh/ruff/pull/5454))
+
+### Configuration
+
+- \[`flake8-type-checking`\] Improve flexibility of `runtime-evaluated-decorators` ([#15204](https://github.com/astral-sh/ruff/pull/15204))
+- \[`pydocstyle`\] Add setting to ignore missing documentation for `*args` and `**kwargs` parameters (`D417`) ([#15210](https://github.com/astral-sh/ruff/pull/15210))
+- \[`ruff`\] Add an allowlist for `unsafe-markup-use` (`RUF035`) ([#15076](https://github.com/astral-sh/ruff/pull/15076))
+
+### Bug fixes
+
+- Fix type subscript on older python versions ([#15090](https://github.com/astral-sh/ruff/pull/15090))
+- Use `TypeChecker` for detecting `fastapi` routes ([#15093](https://github.com/astral-sh/ruff/pull/15093))
+- \[`pycodestyle`\] Avoid false positives and negatives related to type parameter default syntax (`E225`, `E251`) ([#15214](https://github.com/astral-sh/ruff/pull/15214))
+
+### Documentation
+
+- Fix incorrect doc in `shebang-not-executable` (`EXE001`) and add git+windows solution to executable bit ([#15208](https://github.com/astral-sh/ruff/pull/15208))
+- Rename rules currently not conforming to naming convention ([#15102](https://github.com/astral-sh/ruff/pull/15102))
+
+## 0.8.6
+
+### Preview features
+
+- \[`format`\]: Preserve multiline implicit concatenated strings in docstring positions ([#15126](https://github.com/astral-sh/ruff/pull/15126))
+- \[`ruff`\] Add rule to detect empty literal in deque call (`RUF025`) ([#15104](https://github.com/astral-sh/ruff/pull/15104))
+- \[`ruff`\] Avoid reporting when `ndigits` is possibly negative (`RUF057`) ([#15234](https://github.com/astral-sh/ruff/pull/15234))
+
+### Rule changes
+
+- \[`flake8-todos`\] remove issue code length restriction (`TD003`) ([#15175](https://github.com/astral-sh/ruff/pull/15175))
+- \[`pyflakes`\] Ignore errors in `@no_type_check` string annotations (`F722`, `F821`) ([#15215](https://github.com/astral-sh/ruff/pull/15215))
+
+### CLI
+
+- Show errors for attempted fixes only when passed `--verbose` ([#15237](https://github.com/astral-sh/ruff/pull/15237))
+
+### Bug fixes
+
+- \[`ruff`\] Avoid syntax error when removing int over multiple lines (`RUF046`) ([#15230](https://github.com/astral-sh/ruff/pull/15230))
+- \[`pyupgrade`\] Revert "Add all PEP-585 names to `UP006` rule" ([#15250](https://github.com/astral-sh/ruff/pull/15250))

changelogs/0.9.x.md

@@ -0,0 +1,475 @@
+# Changelog 0.9.x
+
+## 0.9.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.9.0) for a migration guide and overview of the changes!
+
+### Breaking changes
+
+Ruff now formats your code according to the 2025 style guide. As a result, your code might now get formatted differently. See the formatter section for a detailed list of changes.
+
+This release doesn’t remove or remap any existing stable rules.
+
+### Stabilization
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`stdlib-module-shadowing`](https://docs.astral.sh/ruff/rules/stdlib-module-shadowing/) (`A005`).
+    This rule has also been renamed: previously, it was called `builtin-module-shadowing`.
+- [`builtin-lambda-argument-shadowing`](https://docs.astral.sh/ruff/rules/builtin-lambda-argument-shadowing/) (`A006`)
+- [`slice-to-remove-prefix-or-suffix`](https://docs.astral.sh/ruff/rules/slice-to-remove-prefix-or-suffix/) (`FURB188`)
+- [`boolean-chained-comparison`](https://docs.astral.sh/ruff/rules/boolean-chained-comparison/) (`PLR1716`)
+- [`decimal-from-float-literal`](https://docs.astral.sh/ruff/rules/decimal-from-float-literal/) (`RUF032`)
+- [`post-init-default`](https://docs.astral.sh/ruff/rules/post-init-default/) (`RUF033`)
+- [`useless-if-else`](https://docs.astral.sh/ruff/rules/useless-if-else/) (`RUF034`)
+
+The following behaviors have been stabilized:
+
+- [`pytest-parametrize-names-wrong-type`](https://docs.astral.sh/ruff/rules/pytest-parametrize-names-wrong-type/) (`PT006`): Detect [`pytest.parametrize`](https://docs.pytest.org/en/7.1.x/how-to/parametrize.html#parametrize) calls outside decorators and calls with keyword arguments.
+- [`module-import-not-at-top-of-file`](https://docs.astral.sh/ruff/rules/module-import-not-at-top-of-file/) (`E402`): Ignore [`pytest.importorskip`](https://docs.pytest.org/en/7.1.x/reference/reference.html#pytest-importorskip) calls between import statements.
+- [`mutable-dataclass-default`](https://docs.astral.sh/ruff/rules/mutable-dataclass-default/) (`RUF008`) and [`function-call-in-dataclass-default-argument`](https://docs.astral.sh/ruff/rules/function-call-in-dataclass-default-argument/) (`RUF009`): Add support for [`attrs`](https://www.attrs.org/en/stable/).
+- [`bad-version-info-comparison`](https://docs.astral.sh/ruff/rules/bad-version-info-comparison/) (`PYI006`): Extend the rule to check non-stub files.
+
+The following fixes or improvements to fixes have been stabilized:
+
+- [`redundant-numeric-union`](https://docs.astral.sh/ruff/rules/redundant-numeric-union/) (`PYI041`)
+- [`duplicate-union-members`](https://docs.astral.sh/ruff/rules/duplicate-union-member/) (`PYI016`)
+
+### Formatter
+
+This release introduces the new 2025 stable style ([#13371](https://github.com/astral-sh/ruff/issues/13371)), stabilizing the following changes:
+
+- Format expressions in f-string elements ([#7594](https://github.com/astral-sh/ruff/issues/7594))
+- Alternate quotes for strings inside f-strings ([#13860](https://github.com/astral-sh/ruff/pull/13860))
+- Preserve the casing of hex codes in f-string debug expressions ([#14766](https://github.com/astral-sh/ruff/issues/14766))
+- Choose the quote style for each string literal in an implicitly concatenated f-string rather than for the entire string ([#13539](https://github.com/astral-sh/ruff/pull/13539))
+- Automatically join an implicitly concatenated string into a single string literal if it fits on a single line ([#9457](https://github.com/astral-sh/ruff/issues/9457))
+- Remove the [`ISC001`](https://docs.astral.sh/ruff/rules/single-line-implicit-string-concatenation/) incompatibility warning ([#15123](https://github.com/astral-sh/ruff/pull/15123))
+- Prefer parenthesizing the `assert` message over breaking the assertion expression ([#9457](https://github.com/astral-sh/ruff/issues/9457))
+- Automatically parenthesize over-long `if` guards in `match` `case` clauses ([#13513](https://github.com/astral-sh/ruff/pull/13513))
+- More consistent formatting for `match` `case` patterns ([#6933](https://github.com/astral-sh/ruff/issues/6933))
+- Avoid unnecessary parentheses around return type annotations ([#13381](https://github.com/astral-sh/ruff/pull/13381))
+- Keep the opening parentheses on the same line as the `if` keyword for comprehensions where the condition has a leading comment ([#12282](https://github.com/astral-sh/ruff/pull/12282))
+- More consistent formatting for `with` statements with a single context manager for Python 3.8 or older ([#10276](https://github.com/astral-sh/ruff/pull/10276))
+- Correctly calculate the line-width for code blocks in docstrings when using `max-doc-code-line-length = "dynamic"` ([#13523](https://github.com/astral-sh/ruff/pull/13523))
+
+### Preview features
+
+- \[`flake8-bugbear`\] Implement `class-as-data-structure` (`B903`) ([#9601](https://github.com/astral-sh/ruff/pull/9601))
+- \[`flake8-type-checking`\] Apply `quoted-type-alias` more eagerly in `TYPE_CHECKING` blocks and ignore it in stubs (`TC008`) ([#15180](https://github.com/astral-sh/ruff/pull/15180))
+- \[`pylint`\] Ignore `eq-without-hash` in stub files (`PLW1641`) ([#15310](https://github.com/astral-sh/ruff/pull/15310))
+- \[`pyupgrade`\] Split `UP007` into two individual rules: `UP007` for `Union` and `UP045` for `Optional` (`UP007`, `UP045`) ([#15313](https://github.com/astral-sh/ruff/pull/15313))
+- \[`ruff`\] New rule that detects classes that are both an enum and a `dataclass` (`RUF049`) ([#15299](https://github.com/astral-sh/ruff/pull/15299))
+- \[`ruff`\] Recode `RUF025` to `RUF037` (`RUF037`) ([#15258](https://github.com/astral-sh/ruff/pull/15258))
+
+### Rule changes
+
+- \[`flake8-builtins`\] Ignore [`stdlib-module-shadowing`](https://docs.astral.sh/ruff/rules/stdlib-module-shadowing/) in stub files(`A005`) ([#15350](https://github.com/astral-sh/ruff/pull/15350))
+- \[`flake8-return`\] Add support for functions returning `typing.Never` (`RET503`) ([#15298](https://github.com/astral-sh/ruff/pull/15298))
+
+### Server
+
+- Improve the observability by removing the need for the ["trace" value](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#traceValue) to turn on or off logging. The server logging is solely controlled using the [`logLevel` server setting](https://docs.astral.sh/ruff/editors/settings/#loglevel)
+    which defaults to `info`. This addresses the issue where users were notified about an error and told to consult the log, but it didn’t contain any messages. ([#15232](https://github.com/astral-sh/ruff/pull/15232))
+- Ignore diagnostics from other sources for code action requests ([#15373](https://github.com/astral-sh/ruff/pull/15373))
+
+### CLI
+
+- Improve the error message for `--config key=value` when the `key` is for a table and it’s a simple `value`
+
+### Bug fixes
+
+- \[`eradicate`\] Ignore metadata blocks directly followed by normal blocks (`ERA001`) ([#15330](https://github.com/astral-sh/ruff/pull/15330))
+- \[`flake8-django`\] Recognize other magic methods (`DJ012`) ([#15365](https://github.com/astral-sh/ruff/pull/15365))
+- \[`pycodestyle`\] Avoid false positives related to type aliases (`E252`) ([#15356](https://github.com/astral-sh/ruff/pull/15356))
+- \[`pydocstyle`\] Avoid treating newline-separated sections as sub-sections (`D405`) ([#15311](https://github.com/astral-sh/ruff/pull/15311))
+- \[`pyflakes`\] Remove call when removing final argument from `format` (`F523`) ([#15309](https://github.com/astral-sh/ruff/pull/15309))
+- \[`refurb`\] Mark fix as unsafe when the right-hand side is a string (`FURB171`) ([#15273](https://github.com/astral-sh/ruff/pull/15273))
+- \[`ruff`\] Treat `)` as a regex metacharacter (`RUF043`, `RUF055`) ([#15318](https://github.com/astral-sh/ruff/pull/15318))
+- \[`ruff`\] Parenthesize the `int`-call argument when removing the `int` call would change semantics (`RUF046`) ([#15277](https://github.com/astral-sh/ruff/pull/15277))
+
+## 0.9.1
+
+### Preview features
+
+- \[`pycodestyle`\] Run `too-many-newlines-at-end-of-file` on each cell in notebooks (`W391`) ([#15308](https://github.com/astral-sh/ruff/pull/15308))
+- \[`ruff`\] Omit diagnostic for shadowed private function parameters in `used-dummy-variable` (`RUF052`) ([#15376](https://github.com/astral-sh/ruff/pull/15376))
+
+### Rule changes
+
+- \[`flake8-bugbear`\] Improve `assert-raises-exception` message (`B017`) ([#15389](https://github.com/astral-sh/ruff/pull/15389))
+
+### Formatter
+
+- Preserve trailing end-of line comments for the last string literal in implicitly concatenated strings ([#15378](https://github.com/astral-sh/ruff/pull/15378))
+
+### Server
+
+- Fix a bug where the server and client notebooks were out of sync after reordering cells ([#15398](https://github.com/astral-sh/ruff/pull/15398))
+
+### Bug fixes
+
+- \[`flake8-pie`\] Correctly remove wrapping parentheses (`PIE800`) ([#15394](https://github.com/astral-sh/ruff/pull/15394))
+- \[`pyupgrade`\] Handle comments and multiline expressions correctly (`UP037`) ([#15337](https://github.com/astral-sh/ruff/pull/15337))
+
+## 0.9.2
+
+### Preview features
+
+- \[`airflow`\] Fix typo "security_managr" to "security_manager" (`AIR303`) ([#15463](https://github.com/astral-sh/ruff/pull/15463))
+- \[`airflow`\] extend and fix AIR302 rules ([#15525](https://github.com/astral-sh/ruff/pull/15525))
+- \[`fastapi`\] Handle parameters with `Depends` correctly (`FAST003`) ([#15364](https://github.com/astral-sh/ruff/pull/15364))
+- \[`flake8-pytest-style`\] Implement pytest.warns diagnostics (`PT029`, `PT030`, `PT031`) ([#15444](https://github.com/astral-sh/ruff/pull/15444))
+- \[`flake8-pytest-style`\] Test function parameters with default arguments (`PT028`) ([#15449](https://github.com/astral-sh/ruff/pull/15449))
+- \[`flake8-type-checking`\] Avoid false positives for `|` in `TC008` ([#15201](https://github.com/astral-sh/ruff/pull/15201))
+
+### Rule changes
+
+- \[`flake8-todos`\] Allow VSCode GitHub PR extension style links in `missing-todo-link` (`TD003`) ([#15519](https://github.com/astral-sh/ruff/pull/15519))
+- \[`pyflakes`\] Show syntax error message for `F722` ([#15523](https://github.com/astral-sh/ruff/pull/15523))
+
+### Formatter
+
+- Fix curly bracket spacing around f-string expressions containing curly braces ([#15471](https://github.com/astral-sh/ruff/pull/15471))
+- Fix joining of f-strings with different quotes when using quote style `Preserve` ([#15524](https://github.com/astral-sh/ruff/pull/15524))
+
+### Server
+
+- Avoid indexing the same workspace multiple times ([#15495](https://github.com/astral-sh/ruff/pull/15495))
+- Display context for `ruff.configuration` errors ([#15452](https://github.com/astral-sh/ruff/pull/15452))
+
+### Configuration
+
+- Remove `flatten` to improve deserialization error messages ([#15414](https://github.com/astral-sh/ruff/pull/15414))
+
+### Bug fixes
+
+- Parse triple-quoted string annotations as if parenthesized ([#15387](https://github.com/astral-sh/ruff/pull/15387))
+- \[`fastapi`\] Update `Annotated` fixes (`FAST002`) ([#15462](https://github.com/astral-sh/ruff/pull/15462))
+- \[`flake8-bandit`\] Check for `builtins` instead of `builtin` (`S102`, `PTH123`) ([#15443](https://github.com/astral-sh/ruff/pull/15443))
+- \[`flake8-pathlib`\] Fix `--select` for `os-path-dirname` (`PTH120`) ([#15446](https://github.com/astral-sh/ruff/pull/15446))
+- \[`ruff`\] Fix false positive on global keyword (`RUF052`) ([#15235](https://github.com/astral-sh/ruff/pull/15235))
+
+## 0.9.3
+
+### Preview features
+
+- \[`airflow`\] Argument `fail_stop` in DAG has been renamed as `fail_fast` (`AIR302`) ([#15633](https://github.com/astral-sh/ruff/pull/15633))
+- \[`airflow`\] Extend `AIR303` with more symbols ([#15611](https://github.com/astral-sh/ruff/pull/15611))
+- \[`flake8-bandit`\] Report all references to suspicious functions (`S3`) ([#15541](https://github.com/astral-sh/ruff/pull/15541))
+- \[`flake8-pytest-style`\] Do not emit diagnostics for empty `for` loops (`PT012`, `PT031`) ([#15542](https://github.com/astral-sh/ruff/pull/15542))
+- \[`flake8-simplify`\] Avoid double negations (`SIM103`) ([#15562](https://github.com/astral-sh/ruff/pull/15562))
+- \[`pyflakes`\] Fix infinite loop with unused local import in `__init__.py` (`F401`) ([#15517](https://github.com/astral-sh/ruff/pull/15517))
+- \[`pylint`\] Do not report methods with only one `EM101`-compatible `raise` (`PLR6301`) ([#15507](https://github.com/astral-sh/ruff/pull/15507))
+- \[`pylint`\] Implement `redefined-slots-in-subclass` (`W0244`) ([#9640](https://github.com/astral-sh/ruff/pull/9640))
+- \[`pyupgrade`\] Add rules to use PEP 695 generics in classes and functions (`UP046`, `UP047`) ([#15565](https://github.com/astral-sh/ruff/pull/15565), [#15659](https://github.com/astral-sh/ruff/pull/15659))
+- \[`refurb`\] Implement `for-loop-writes` (`FURB122`) ([#10630](https://github.com/astral-sh/ruff/pull/10630))
+- \[`ruff`\] Implement `needless-else` clause (`RUF047`) ([#15051](https://github.com/astral-sh/ruff/pull/15051))
+- \[`ruff`\] Implement `starmap-zip` (`RUF058`) ([#15483](https://github.com/astral-sh/ruff/pull/15483))
+
+### Rule changes
+
+- \[`flake8-bugbear`\] Do not raise error if keyword argument is present and target-python version is less or equals than 3.9 (`B903`) ([#15549](https://github.com/astral-sh/ruff/pull/15549))
+- \[`flake8-comprehensions`\] strip parentheses around generators in `unnecessary-generator-set` (`C401`) ([#15553](https://github.com/astral-sh/ruff/pull/15553))
+- \[`flake8-pytest-style`\] Rewrite references to `.exception` (`PT027`) ([#15680](https://github.com/astral-sh/ruff/pull/15680))
+- \[`flake8-simplify`\] Mark fixes as unsafe (`SIM201`, `SIM202`) ([#15626](https://github.com/astral-sh/ruff/pull/15626))
+- \[`flake8-type-checking`\] Fix some safe fixes being labeled unsafe (`TC006`,`TC008`) ([#15638](https://github.com/astral-sh/ruff/pull/15638))
+- \[`isort`\] Omit trailing whitespace in `unsorted-imports` (`I001`) ([#15518](https://github.com/astral-sh/ruff/pull/15518))
+- \[`pydoclint`\] Allow ignoring one line docstrings for `DOC` rules ([#13302](https://github.com/astral-sh/ruff/pull/13302))
+- \[`pyflakes`\] Apply redefinition fixes by source code order (`F811`) ([#15575](https://github.com/astral-sh/ruff/pull/15575))
+- \[`pyflakes`\] Avoid removing too many imports in `redefined-while-unused` (`F811`) ([#15585](https://github.com/astral-sh/ruff/pull/15585))
+- \[`pyflakes`\] Group redefinition fixes by source statement (`F811`) ([#15574](https://github.com/astral-sh/ruff/pull/15574))
+- \[`pylint`\] Include name of base class in message for `redefined-slots-in-subclass` (`W0244`) ([#15559](https://github.com/astral-sh/ruff/pull/15559))
+- \[`ruff`\] Update fix for `RUF055` to use `var == value` ([#15605](https://github.com/astral-sh/ruff/pull/15605))
+
+### Formatter
+
+- Fix bracket spacing for single-element tuples in f-string expressions ([#15537](https://github.com/astral-sh/ruff/pull/15537))
+- Fix unstable f-string formatting for expressions containing a trailing comma ([#15545](https://github.com/astral-sh/ruff/pull/15545))
+
+### Performance
+
+- Avoid quadratic membership check in import fixes ([#15576](https://github.com/astral-sh/ruff/pull/15576))
+
+### Server
+
+- Allow `unsafe-fixes` settings for code actions ([#15666](https://github.com/astral-sh/ruff/pull/15666))
+
+### Bug fixes
+
+- \[`flake8-bandit`\] Add missing single-line/dotall regex flag (`S608`) ([#15654](https://github.com/astral-sh/ruff/pull/15654))
+- \[`flake8-import-conventions`\] Fix infinite loop between `ICN001` and `I002` (`ICN001`) ([#15480](https://github.com/astral-sh/ruff/pull/15480))
+- \[`flake8-simplify`\] Do not emit diagnostics for expressions inside string type annotations (`SIM222`, `SIM223`) ([#15405](https://github.com/astral-sh/ruff/pull/15405))
+- \[`pyflakes`\] Treat arguments passed to the `default=` parameter of `TypeVar` as type expressions (`F821`) ([#15679](https://github.com/astral-sh/ruff/pull/15679))
+- \[`pyupgrade`\] Avoid syntax error when the iterable is a non-parenthesized tuple (`UP028`) ([#15543](https://github.com/astral-sh/ruff/pull/15543))
+- \[`ruff`\] Exempt `NewType` calls where the original type is immutable (`RUF009`) ([#15588](https://github.com/astral-sh/ruff/pull/15588))
+- Preserve raw string prefix and escapes in all codegen fixes ([#15694](https://github.com/astral-sh/ruff/pull/15694))
+
+### Documentation
+
+- Generate documentation redirects for lowercase rule codes ([#15564](https://github.com/astral-sh/ruff/pull/15564))
+- `TRY300`: Add some extra notes on not catching exceptions you didn't expect ([#15036](https://github.com/astral-sh/ruff/pull/15036))
+
+## 0.9.4
+
+### Preview features
+
+- \[`airflow`\] Extend airflow context parameter check for `BaseOperator.execute` (`AIR302`) ([#15713](https://github.com/astral-sh/ruff/pull/15713))
+- \[`airflow`\] Update `AIR302` to check for deprecated context keys ([#15144](https://github.com/astral-sh/ruff/pull/15144))
+- \[`flake8-bandit`\] Permit suspicious imports within stub files (`S4`) ([#15822](https://github.com/astral-sh/ruff/pull/15822))
+- \[`pylint`\] Do not trigger `PLR6201` on empty collections ([#15732](https://github.com/astral-sh/ruff/pull/15732))
+- \[`refurb`\] Do not emit diagnostic when loop variables are used outside loop body (`FURB122`) ([#15757](https://github.com/astral-sh/ruff/pull/15757))
+- \[`ruff`\] Add support for more `re` patterns (`RUF055`) ([#15764](https://github.com/astral-sh/ruff/pull/15764))
+- \[`ruff`\] Check for shadowed `map` before suggesting fix (`RUF058`) ([#15790](https://github.com/astral-sh/ruff/pull/15790))
+- \[`ruff`\] Do not emit diagnostic when all arguments to `zip()` are variadic (`RUF058`) ([#15744](https://github.com/astral-sh/ruff/pull/15744))
+- \[`ruff`\] Parenthesize fix when argument spans multiple lines for `unnecessary-round` (`RUF057`) ([#15703](https://github.com/astral-sh/ruff/pull/15703))
+
+### Rule changes
+
+- Preserve quote style in generated code ([#15726](https://github.com/astral-sh/ruff/pull/15726), [#15778](https://github.com/astral-sh/ruff/pull/15778), [#15794](https://github.com/astral-sh/ruff/pull/15794))
+- \[`flake8-bugbear`\] Exempt `NewType` calls where the original type is immutable (`B008`) ([#15765](https://github.com/astral-sh/ruff/pull/15765))
+- \[`pylint`\] Honor banned top-level imports by `TID253` in `PLC0415`. ([#15628](https://github.com/astral-sh/ruff/pull/15628))
+- \[`pyupgrade`\] Ignore `is_typeddict` and `TypedDict` for `deprecated-import` (`UP035`) ([#15800](https://github.com/astral-sh/ruff/pull/15800))
+
+### CLI
+
+- Fix formatter warning message for `flake8-quotes` option ([#15788](https://github.com/astral-sh/ruff/pull/15788))
+- Implement tab autocomplete for `ruff config` ([#15603](https://github.com/astral-sh/ruff/pull/15603))
+
+### Bug fixes
+
+- \[`flake8-comprehensions`\] Do not emit `unnecessary-map` diagnostic when lambda has different arity (`C417`) ([#15802](https://github.com/astral-sh/ruff/pull/15802))
+- \[`flake8-comprehensions`\] Parenthesize `sorted` when needed for `unnecessary-call-around-sorted` (`C413`) ([#15825](https://github.com/astral-sh/ruff/pull/15825))
+- \[`pyupgrade`\] Handle end-of-line comments for `quoted-annotation` (`UP037`) ([#15824](https://github.com/astral-sh/ruff/pull/15824))
+
+### Documentation
+
+- Add missing config docstrings ([#15803](https://github.com/astral-sh/ruff/pull/15803))
+- Add references to `trio.run_process` and `anyio.run_process` ([#15761](https://github.com/astral-sh/ruff/pull/15761))
+- Use `uv init --lib` in tutorial ([#15718](https://github.com/astral-sh/ruff/pull/15718))
+
+## 0.9.5
+
+### Preview features
+
+- Recognize all symbols named `TYPE_CHECKING` for `in_type_checking_block` ([#15719](https://github.com/astral-sh/ruff/pull/15719))
+- \[`flake8-comprehensions`\] Handle builtins at top of file correctly for `unnecessary-dict-comprehension-for-iterable` (`C420`) ([#15837](https://github.com/astral-sh/ruff/pull/15837))
+- \[`flake8-logging`\] `.exception()` and `exc_info=` outside exception handlers (`LOG004`, `LOG014`) ([#15799](https://github.com/astral-sh/ruff/pull/15799))
+- \[`flake8-pyi`\] Fix incorrect behaviour of `custom-typevar-return-type` preview-mode autofix if `typing` was already imported (`PYI019`) ([#15853](https://github.com/astral-sh/ruff/pull/15853))
+- \[`flake8-pyi`\] Fix more complex cases (`PYI019`) ([#15821](https://github.com/astral-sh/ruff/pull/15821))
+- \[`flake8-pyi`\] Make `PYI019` autofixable for `.py` files in preview mode as well as stubs ([#15889](https://github.com/astral-sh/ruff/pull/15889))
+- \[`flake8-pyi`\] Remove type parameter correctly when it is the last (`PYI019`) ([#15854](https://github.com/astral-sh/ruff/pull/15854))
+- \[`pylint`\] Fix missing parens in unsafe fix for `unnecessary-dunder-call` (`PLC2801`) ([#15762](https://github.com/astral-sh/ruff/pull/15762))
+- \[`pyupgrade`\] Better messages and diagnostic range (`UP015`) ([#15872](https://github.com/astral-sh/ruff/pull/15872))
+- \[`pyupgrade`\] Rename private type parameters in PEP 695 generics (`UP049`) ([#15862](https://github.com/astral-sh/ruff/pull/15862))
+- \[`refurb`\] Also report non-name expressions (`FURB169`) ([#15905](https://github.com/astral-sh/ruff/pull/15905))
+- \[`refurb`\] Mark fix as unsafe if there are comments (`FURB171`) ([#15832](https://github.com/astral-sh/ruff/pull/15832))
+- \[`ruff`\] Classes with mixed type variable style (`RUF053`) ([#15841](https://github.com/astral-sh/ruff/pull/15841))
+- \[`airflow`\] `BashOperator` has been moved to `airflow.providers.standard.operators.bash.BashOperator` (`AIR302`) ([#15922](https://github.com/astral-sh/ruff/pull/15922))
+- \[`flake8-pyi`\] Add autofix for unused-private-type-var (`PYI018`) ([#15999](https://github.com/astral-sh/ruff/pull/15999))
+- \[`flake8-pyi`\] Significantly improve accuracy of `PYI019` if preview mode is enabled ([#15888](https://github.com/astral-sh/ruff/pull/15888))
+
+### Rule changes
+
+- Preserve triple quotes and prefixes for strings ([#15818](https://github.com/astral-sh/ruff/pull/15818))
+- \[`flake8-comprehensions`\] Skip when `TypeError` present from too many (kw)args for `C410`,`C411`, and `C418` ([#15838](https://github.com/astral-sh/ruff/pull/15838))
+- \[`flake8-pyi`\] Rename `PYI019` and improve its diagnostic message ([#15885](https://github.com/astral-sh/ruff/pull/15885))
+- \[`pep8-naming`\] Ignore `@override` methods (`N803`) ([#15954](https://github.com/astral-sh/ruff/pull/15954))
+- \[`pyupgrade`\] Reuse replacement logic from `UP046` and `UP047` to preserve more comments (`UP040`) ([#15840](https://github.com/astral-sh/ruff/pull/15840))
+- \[`ruff`\] Analyze deferred annotations before enforcing `mutable-(data)class-default` and `function-call-in-dataclass-default-argument` (`RUF008`,`RUF009`,`RUF012`) ([#15921](https://github.com/astral-sh/ruff/pull/15921))
+- \[`pycodestyle`\] Exempt `sys.path += ...` calls (`E402`) ([#15980](https://github.com/astral-sh/ruff/pull/15980))
+
+### Configuration
+
+- Config error only when `flake8-import-conventions` alias conflicts with `isort.required-imports` bound name ([#15918](https://github.com/astral-sh/ruff/pull/15918))
+- Workaround Even Better TOML crash related to `allOf` ([#15992](https://github.com/astral-sh/ruff/pull/15992))
+
+### Bug fixes
+
+- \[`flake8-comprehensions`\] Unnecessary `list` comprehension (rewrite as a `set` comprehension) (`C403`) - Handle extraneous parentheses around list comprehension ([#15877](https://github.com/astral-sh/ruff/pull/15877))
+- \[`flake8-comprehensions`\] Handle trailing comma in fixes for `unnecessary-generator-list/set` (`C400`,`C401`) ([#15929](https://github.com/astral-sh/ruff/pull/15929))
+- \[`flake8-pyi`\] Fix several correctness issues with `custom-type-var-return-type` (`PYI019`) ([#15851](https://github.com/astral-sh/ruff/pull/15851))
+- \[`pep8-naming`\] Consider any number of leading underscore for `N801` ([#15988](https://github.com/astral-sh/ruff/pull/15988))
+- \[`pyflakes`\] Visit forward annotations in `TypeAliasType` as types (`F401`) ([#15829](https://github.com/astral-sh/ruff/pull/15829))
+- \[`pylint`\] Correct min/max auto-fix and suggestion for (`PL1730`) ([#15930](https://github.com/astral-sh/ruff/pull/15930))
+- \[`refurb`\] Handle unparenthesized tuples correctly (`FURB122`, `FURB142`) ([#15953](https://github.com/astral-sh/ruff/pull/15953))
+- \[`refurb`\] Avoid `None | None` as well as better detection and fix (`FURB168`) ([#15779](https://github.com/astral-sh/ruff/pull/15779))
+
+### Documentation
+
+- Add deprecation warning for `ruff-lsp` related settings ([#15850](https://github.com/astral-sh/ruff/pull/15850))
+- Docs (`linter.md`): clarify that Python files are always searched for in subdirectories ([#15882](https://github.com/astral-sh/ruff/pull/15882))
+- Fix a typo in `non_pep695_generic_class.rs` ([#15946](https://github.com/astral-sh/ruff/pull/15946))
+- Improve Docs: Pylint subcategories' codes ([#15909](https://github.com/astral-sh/ruff/pull/15909))
+- Remove non-existing `lint.extendIgnore` editor setting ([#15844](https://github.com/astral-sh/ruff/pull/15844))
+- Update black deviations ([#15928](https://github.com/astral-sh/ruff/pull/15928))
+- Mention `UP049` in `UP046` and `UP047`, add `See also` section to `UP040` ([#15956](https://github.com/astral-sh/ruff/pull/15956))
+- Add instance variable examples to `RUF012` ([#15982](https://github.com/astral-sh/ruff/pull/15982))
+- Explain precedence for `ignore` and `select` config ([#15883](https://github.com/astral-sh/ruff/pull/15883))
+
+## 0.9.6
+
+### Preview features
+
+- \[`airflow`\] Add `external_task.{ExternalTaskMarker, ExternalTaskSensor}` for `AIR302` ([#16014](https://github.com/astral-sh/ruff/pull/16014))
+- \[`flake8-builtins`\] Make strict module name comparison optional (`A005`) ([#15951](https://github.com/astral-sh/ruff/pull/15951))
+- \[`flake8-pyi`\] Extend fix to Python \<= 3.9 for `redundant-none-literal` (`PYI061`) ([#16044](https://github.com/astral-sh/ruff/pull/16044))
+- \[`pylint`\] Also report when the object isn't a literal (`PLE1310`) ([#15985](https://github.com/astral-sh/ruff/pull/15985))
+- \[`ruff`\] Implement `indented-form-feed` (`RUF054`) ([#16049](https://github.com/astral-sh/ruff/pull/16049))
+- \[`ruff`\] Skip type definitions for `missing-f-string-syntax` (`RUF027`) ([#16054](https://github.com/astral-sh/ruff/pull/16054))
+
+### Rule changes
+
+- \[`flake8-annotations`\] Correct syntax for `typing.Union` in suggested return type fixes for `ANN20x` rules ([#16025](https://github.com/astral-sh/ruff/pull/16025))
+- \[`flake8-builtins`\] Match upstream module name comparison (`A005`) ([#16006](https://github.com/astral-sh/ruff/pull/16006))
+- \[`flake8-comprehensions`\] Detect overshadowed `list`/`set`/`dict`, ignore variadics and named expressions (`C417`) ([#15955](https://github.com/astral-sh/ruff/pull/15955))
+- \[`flake8-pie`\] Remove following comma correctly when the unpacked dictionary is empty (`PIE800`) ([#16008](https://github.com/astral-sh/ruff/pull/16008))
+- \[`flake8-simplify`\] Only trigger `SIM401` on known dictionaries ([#15995](https://github.com/astral-sh/ruff/pull/15995))
+- \[`pylint`\] Do not report calls when object type and argument type mismatch, remove custom escape handling logic (`PLE1310`) ([#15984](https://github.com/astral-sh/ruff/pull/15984))
+- \[`pyupgrade`\] Comments within parenthesized value ranges should not affect applicability (`UP040`) ([#16027](https://github.com/astral-sh/ruff/pull/16027))
+- \[`pyupgrade`\] Don't introduce invalid syntax when upgrading old-style type aliases with parenthesized multiline values (`UP040`) ([#16026](https://github.com/astral-sh/ruff/pull/16026))
+- \[`pyupgrade`\] Ensure we do not rename two type parameters to the same name (`UP049`) ([#16038](https://github.com/astral-sh/ruff/pull/16038))
+- \[`pyupgrade`\] \[`ruff`\] Don't apply renamings if the new name is shadowed in a scope of one of the references to the binding (`UP049`, `RUF052`) ([#16032](https://github.com/astral-sh/ruff/pull/16032))
+- \[`ruff`\] Update `RUF009` to behave similar to `B008` and ignore attributes with immutable types ([#16048](https://github.com/astral-sh/ruff/pull/16048))
+
+### Server
+
+- Root exclusions in the server to project root ([#16043](https://github.com/astral-sh/ruff/pull/16043))
+
+### Bug fixes
+
+- \[`flake8-datetime`\] Ignore `.replace()` calls while looking for `.astimezone` ([#16050](https://github.com/astral-sh/ruff/pull/16050))
+- \[`flake8-type-checking`\] Avoid `TC004` false positive where the runtime definition is provided by `__getattr__` ([#16052](https://github.com/astral-sh/ruff/pull/16052))
+
+### Documentation
+
+- Improve `ruff-lsp` migration document ([#16072](https://github.com/astral-sh/ruff/pull/16072))
+- Undeprecate `ruff.nativeServer` ([#16039](https://github.com/astral-sh/ruff/pull/16039))
+
+## 0.9.7
+
+### Preview features
+
+- Consider `__new__` methods as special function type for enforcing class method or static method rules ([#13305](https://github.com/astral-sh/ruff/pull/13305))
+- \[`airflow`\] Improve the internal logic to differentiate deprecated symbols (`AIR303`) ([#16013](https://github.com/astral-sh/ruff/pull/16013))
+- \[`refurb`\] Manual timezone monkeypatching (`FURB162`) ([#16113](https://github.com/astral-sh/ruff/pull/16113))
+- \[`ruff`\] Implicit class variable in dataclass (`RUF045`) ([#14349](https://github.com/astral-sh/ruff/pull/14349))
+- \[`ruff`\] Skip singleton starred expressions for `incorrectly-parenthesized-tuple-in-subscript` (`RUF031`) ([#16083](https://github.com/astral-sh/ruff/pull/16083))
+- \[`refurb`\] Check for subclasses includes subscript expressions (`FURB189`) ([#16155](https://github.com/astral-sh/ruff/pull/16155))
+
+### Rule changes
+
+- \[`flake8-debugger`\] Also flag `sys.breakpointhook` and `sys.__breakpointhook__` (`T100`) ([#16191](https://github.com/astral-sh/ruff/pull/16191))
+- \[`pycodestyle`\] Exempt `site.addsitedir(...)` calls (`E402`) ([#16251](https://github.com/astral-sh/ruff/pull/16251))
+
+### Formatter
+
+- Fix unstable formatting of trailing end-of-line comments of parenthesized attribute values ([#16187](https://github.com/astral-sh/ruff/pull/16187))
+
+### Server
+
+- Fix handling of requests received after shutdown message ([#16262](https://github.com/astral-sh/ruff/pull/16262))
+- Ignore `source.organizeImports.ruff` and `source.fixAll.ruff` code actions for a notebook cell ([#16154](https://github.com/astral-sh/ruff/pull/16154))
+- Include document specific debug info for `ruff.printDebugInformation` ([#16215](https://github.com/astral-sh/ruff/pull/16215))
+- Update server to return the debug info as string with `ruff.printDebugInformation` ([#16214](https://github.com/astral-sh/ruff/pull/16214))
+
+### CLI
+
+- Warn on invalid `noqa` even when there are no diagnostics ([#16178](https://github.com/astral-sh/ruff/pull/16178))
+- Better error messages while loading configuration `extend`s ([#15658](https://github.com/astral-sh/ruff/pull/15658))
+
+### Bug fixes
+
+- \[`flake8-comprehensions`\] Handle trailing comma in `C403` fix ([#16110](https://github.com/astral-sh/ruff/pull/16110))
+- \[`flake8-pyi`\] Avoid flagging `custom-typevar-for-self` on metaclass methods (`PYI019`) ([#16141](https://github.com/astral-sh/ruff/pull/16141))
+- \[`pydocstyle`\] Handle arguments with the same names as sections (`D417`) ([#16011](https://github.com/astral-sh/ruff/pull/16011))
+- \[`pylint`\] Correct ordering of arguments in fix for `if-stmt-min-max` (`PLR1730`) ([#16080](https://github.com/astral-sh/ruff/pull/16080))
+- \[`pylint`\] Do not offer fix for raw strings (`PLE251`) ([#16132](https://github.com/astral-sh/ruff/pull/16132))
+- \[`pyupgrade`\] Do not upgrade functional `TypedDicts` with private field names to the class-based syntax (`UP013`) ([#16219](https://github.com/astral-sh/ruff/pull/16219))
+- \[`pyupgrade`\] Handle micro version numbers correctly (`UP036`) ([#16091](https://github.com/astral-sh/ruff/pull/16091))
+- \[`pyupgrade`\] Unwrap unary expressions correctly (`UP018`) ([#15919](https://github.com/astral-sh/ruff/pull/15919))
+- \[`refurb`\] Correctly handle lengths of literal strings in `slice-to-remove-prefix-or-suffix` (`FURB188`) ([#16237](https://github.com/astral-sh/ruff/pull/16237))
+- \[`ruff`\] Skip `RUF001` diagnostics when visiting string type definitions ([#16122](https://github.com/astral-sh/ruff/pull/16122))
+
+### Documentation
+
+- Add FAQ entry for `source.*` code actions in Notebook ([#16212](https://github.com/astral-sh/ruff/pull/16212))
+- Add `SECURITY.md` ([#16224](https://github.com/astral-sh/ruff/pull/16224))
+
+## 0.9.8
+
+### Preview features
+
+- Start detecting version-related syntax errors in the parser ([#16090](https://github.com/astral-sh/ruff/pull/16090))
+
+### Rule changes
+
+- \[`pylint`\] Mark fix unsafe (`PLW1507`) ([#16343](https://github.com/astral-sh/ruff/pull/16343))
+- \[`pylint`\] Catch `case np.nan`/`case math.nan` in `match` statements (`PLW0177`) ([#16378](https://github.com/astral-sh/ruff/pull/16378))
+- \[`ruff`\] Add more Pydantic models variants to the list of default copy semantics (`RUF012`) ([#16291](https://github.com/astral-sh/ruff/pull/16291))
+
+### Server
+
+- Avoid indexing the project if `configurationPreference` is `editorOnly` ([#16381](https://github.com/astral-sh/ruff/pull/16381))
+- Avoid unnecessary info at non-trace server log level ([#16389](https://github.com/astral-sh/ruff/pull/16389))
+- Expand `ruff.configuration` to allow inline config ([#16296](https://github.com/astral-sh/ruff/pull/16296))
+- Notify users for invalid client settings ([#16361](https://github.com/astral-sh/ruff/pull/16361))
+
+### Configuration
+
+- Add `per-file-target-version` option ([#16257](https://github.com/astral-sh/ruff/pull/16257))
+
+### Bug fixes
+
+- \[`refurb`\] Do not consider docstring(s) (`FURB156`) ([#16391](https://github.com/astral-sh/ruff/pull/16391))
+- \[`flake8-self`\] Ignore attribute accesses on instance-like variables (`SLF001`) ([#16149](https://github.com/astral-sh/ruff/pull/16149))
+- \[`pylint`\] Fix false positives, add missing methods, and support positional-only parameters (`PLE0302`) ([#16263](https://github.com/astral-sh/ruff/pull/16263))
+- \[`flake8-pyi`\] Mark `PYI030` fix unsafe when comments are deleted ([#16322](https://github.com/astral-sh/ruff/pull/16322))
+
+### Documentation
+
+- Fix example for `S611` ([#16316](https://github.com/astral-sh/ruff/pull/16316))
+- Normalize inconsistent markdown headings in docstrings ([#16364](https://github.com/astral-sh/ruff/pull/16364))
+- Document MSRV policy ([#16384](https://github.com/astral-sh/ruff/pull/16384))
+
+## 0.9.9
+
+### Preview features
+
+- Fix caching of unsupported-syntax errors ([#16425](https://github.com/astral-sh/ruff/pull/16425))
+
+### Bug fixes
+
+- Only show unsupported-syntax errors in editors when preview mode is enabled ([#16429](https://github.com/astral-sh/ruff/pull/16429))
+
+## 0.9.10
+
+### Preview features
+
+- \[`ruff`\] Add new rule `RUF059`: Unused unpacked assignment ([#16449](https://github.com/astral-sh/ruff/pull/16449))
+- \[`syntax-errors`\] Detect assignment expressions before Python 3.8 ([#16383](https://github.com/astral-sh/ruff/pull/16383))
+- \[`syntax-errors`\] Named expressions in decorators before Python 3.9 ([#16386](https://github.com/astral-sh/ruff/pull/16386))
+- \[`syntax-errors`\] Parenthesized keyword argument names after Python 3.8 ([#16482](https://github.com/astral-sh/ruff/pull/16482))
+- \[`syntax-errors`\] Positional-only parameters before Python 3.8 ([#16481](https://github.com/astral-sh/ruff/pull/16481))
+- \[`syntax-errors`\] Tuple unpacking in `return` and `yield` before Python 3.8 ([#16485](https://github.com/astral-sh/ruff/pull/16485))
+- \[`syntax-errors`\] Type parameter defaults before Python 3.13 ([#16447](https://github.com/astral-sh/ruff/pull/16447))
+- \[`syntax-errors`\] Type parameter lists before Python 3.12 ([#16479](https://github.com/astral-sh/ruff/pull/16479))
+- \[`syntax-errors`\] `except*` before Python 3.11 ([#16446](https://github.com/astral-sh/ruff/pull/16446))
+- \[`syntax-errors`\] `type` statements before Python 3.12 ([#16478](https://github.com/astral-sh/ruff/pull/16478))
+
+### Bug fixes
+
+- Escape template filenames in glob patterns in configuration ([#16407](https://github.com/astral-sh/ruff/pull/16407))
+- \[`flake8-simplify`\] Exempt unittest context methods for `SIM115` rule ([#16439](https://github.com/astral-sh/ruff/pull/16439))
+- Formatter: Fix syntax error location in notebooks ([#16499](https://github.com/astral-sh/ruff/pull/16499))
+- \[`pyupgrade`\] Do not offer fix when at least one target is `global`/`nonlocal` (`UP028`) ([#16451](https://github.com/astral-sh/ruff/pull/16451))
+- \[`flake8-builtins`\] Ignore variables matching module attribute names (`A001`) ([#16454](https://github.com/astral-sh/ruff/pull/16454))
+- \[`pylint`\] Convert `code` keyword argument to a positional argument in fix for (`PLR1722`) ([#16424](https://github.com/astral-sh/ruff/pull/16424))
+
+### CLI
+
+- Move rule code from `description` to `check_name` in GitLab output serializer ([#16437](https://github.com/astral-sh/ruff/pull/16437))
+
+### Documentation
+
+- \[`pydocstyle`\] Clarify that `D417` only checks docstrings with an arguments section ([#16494](https://github.com/astral-sh/ruff/pull/16494))

clippy.toml

@@ -1,6 +1,7 @@
 doc-valid-idents = [
     "..",
     "CodeQL",
+    "CPython",
     "FastAPI",
     "IPython",
     "LangChain",
@@ -14,7 +15,7 @@ doc-valid-idents = [
     "SNMPv1",
     "SNMPv2",
     "SNMPv3",
-    "PyFlakes"
+    "PyFlakes",
 ]
 
 ignore-interior-mutability = [

crates/red_knot/README.md

@@ -1,25 +0,0 @@
-# Red Knot
-
-Red Knot is an extremely fast type checker.
-Currently, it is a work-in-progress and not ready for user testing.
-
-Red Knot is designed to prioritize good type inference, even in unannotated code,
-and aims to avoid false positives.
-
-While Red Knot will produce similar results to mypy and pyright on many codebases,
-100% compatibility with these tools is a non-goal.
-On some codebases, Red Knot's design decisions lead to different outcomes
-than you would get from running one of these more established tools.
-
-## Contributing
-
-Core type checking tests are written as Markdown code blocks.
-They can be found in [`red_knot_python_semantic/resources/mdtest`][resources-mdtest].
-See [`red_knot_test/README.md`][mdtest-readme] for more information
-on the test framework itself.
-
-The list of open issues can be found [here][open-issues].
-
-[mdtest-readme]: ../red_knot_test/README.md
-[open-issues]: https://github.com/astral-sh/ruff/issues?q=sort%3Aupdated-desc%20is%3Aissue%20is%3Aopen%20label%3Ared-knot
-[resources-mdtest]: ../red_knot_python_semantic/resources/mdtest

crates/red_knot_ide/src/find_node.rs

@@ -1,106 +0,0 @@
-use ruff_python_ast::visitor::source_order::{SourceOrderVisitor, TraversalSignal};
-use ruff_python_ast::AnyNodeRef;
-use ruff_text_size::{Ranged, TextRange};
-use std::fmt;
-use std::fmt::Formatter;
-
-/// Returns the node with a minimal range that fully contains `range`.
-///
-/// If `range` is empty and falls within a parser *synthesized* node generated during error recovery,
-/// then the first node with the given range is returned.
-///
-/// ## Panics
-/// Panics if `range` is not contained within `root`.
-pub(crate) fn covering_node(root: AnyNodeRef, range: TextRange) -> CoveringNode {
-    struct Visitor<'a> {
-        range: TextRange,
-        found: bool,
-        ancestors: Vec<AnyNodeRef<'a>>,
-    }
-
-    impl<'a> SourceOrderVisitor<'a> for Visitor<'a> {
-        fn enter_node(&mut self, node: AnyNodeRef<'a>) -> TraversalSignal {
-            // If the node fully contains the range, than it is a possible match but traverse into its children
-            // to see if there's a node with a narrower range.
-            if !self.found && node.range().contains_range(self.range) {
-                self.ancestors.push(node);
-                TraversalSignal::Traverse
-            } else {
-                TraversalSignal::Skip
-            }
-        }
-
-        fn leave_node(&mut self, node: AnyNodeRef<'a>) {
-            if !self.found && self.ancestors.last() == Some(&node) {
-                self.found = true;
-            }
-        }
-    }
-
-    assert!(
-        root.range().contains_range(range),
-        "Range is not contained within root"
-    );
-
-    let mut visitor = Visitor {
-        range,
-        found: false,
-        ancestors: Vec::new(),
-    };
-
-    root.visit_source_order(&mut visitor);
-
-    let minimal = visitor.ancestors.pop().unwrap_or(root);
-    CoveringNode {
-        node: minimal,
-        ancestors: visitor.ancestors,
-    }
-}
-
-/// The node with a minimal range that fully contains the search range.
-pub(crate) struct CoveringNode<'a> {
-    /// The node with a minimal range that fully contains the search range.
-    node: AnyNodeRef<'a>,
-
-    /// The node's ancestor (the spine up to the root).
-    ancestors: Vec<AnyNodeRef<'a>>,
-}
-
-impl<'a> CoveringNode<'a> {
-    pub(crate) fn node(&self) -> AnyNodeRef<'a> {
-        self.node
-    }
-
-    /// Returns the node's parent.
-    pub(crate) fn parent(&self) -> Option<AnyNodeRef<'a>> {
-        self.ancestors.last().copied()
-    }
-
-    /// Finds the minimal node that fully covers the range and fulfills the given predicate.
-    pub(crate) fn find(mut self, f: impl Fn(AnyNodeRef<'a>) -> bool) -> Result<Self, Self> {
-        if f(self.node) {
-            return Ok(self);
-        }
-
-        match self.ancestors.iter().rposition(|node| f(*node)) {
-            Some(index) => {
-                let node = self.ancestors[index];
-                self.ancestors.truncate(index);
-
-                Ok(Self {
-                    node,
-                    ancestors: self.ancestors,
-                })
-            }
-            None => Err(self),
-        }
-    }
-}
-
-impl fmt::Debug for CoveringNode<'_> {
-    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
-        f.debug_tuple("NodeWithAncestors")
-            .field(&self.node)
-            .finish()
-    }
-}

crates/red_knot_project/resources/test/corpus/04_assign_invalid_target.py

@@ -1 +0,0 @@
-../../../../ruff_python_parser/resources/invalid/statements/invalid_assignment_targets.py

crates/red_knot_project/resources/test/corpus/04_assign_named_expr_invalid_target.py

@@ -1 +0,0 @@
-../../../../ruff_python_parser/resources/invalid/expressions/named/invalid_target.py

crates/red_knot_project/resources/test/corpus/04_aug_assign_invalid_target.py

@@ -1 +0,0 @@
-../../../../ruff_python_parser/resources/invalid/statements/invalid_augmented_assignment_target.py

crates/red_knot_project/resources/test/corpus/83_jupyter_notebook_ipython_magic.ipynb

@@ -1 +0,0 @@
-../../../../ruff_notebook/resources/test/fixtures/jupyter/unused_variable.ipynb

crates/red_knot_project/resources/test/corpus/89_type_alias_invalid_bound.py

@@ -1 +0,0 @@
-../../../../ruff_python_parser/resources/inline/err/type_param_invalid_bound_expr.py

crates/red_knot_project/resources/test/corpus/98_ann_assign_invalid_target.py

@@ -1 +0,0 @@
-../../../../ruff_python_parser/resources/inline/err/ann_assign_stmt_invalid_target.py

crates/red_knot_project/src/metadata/configuration_file.rs

@@ -1,69 +0,0 @@
-use std::sync::Arc;
-
-use ruff_db::system::{System, SystemPath, SystemPathBuf};
-use thiserror::Error;
-
-use crate::metadata::value::ValueSource;
-
-use super::options::{KnotTomlError, Options};
-
-/// A `knot.toml` configuration file with the options it contains.
-pub(crate) struct ConfigurationFile {
-    path: SystemPathBuf,
-    options: Options,
-}
-
-impl ConfigurationFile {
-    /// Loads the user-level configuration file if it exists.
-    ///
-    /// Returns `None` if the file does not exist or if the concept of user-level configurations
-    /// doesn't exist on `system`.
-    pub(crate) fn user(system: &dyn System) -> Result<Option<Self>, ConfigurationFileError> {
-        let Some(configuration_directory) = system.user_config_directory() else {
-            return Ok(None);
-        };
-
-        let knot_toml_path = configuration_directory.join("knot").join("knot.toml");
-
-        tracing::debug!(
-            "Searching for a user-level configuration at `{path}`",
-            path = &knot_toml_path
-        );
-
-        let Ok(knot_toml_str) = system.read_to_string(&knot_toml_path) else {
-            return Ok(None);
-        };
-
-        match Options::from_toml_str(
-            &knot_toml_str,
-            ValueSource::File(Arc::new(knot_toml_path.clone())),
-        ) {
-            Ok(options) => Ok(Some(Self {
-                path: knot_toml_path,
-                options,
-            })),
-            Err(error) => Err(ConfigurationFileError::InvalidKnotToml {
-                source: Box::new(error),
-                path: knot_toml_path,
-            }),
-        }
-    }
-
-    /// Returns the path to the configuration file.
-    pub(crate) fn path(&self) -> &SystemPath {
-        &self.path
-    }
-
-    pub(crate) fn into_options(self) -> Options {
-        self.options
-    }
-}
-
-#[derive(Debug, Error)]
-pub enum ConfigurationFileError {
-    #[error("{path} is not a valid `knot.toml`: {source}")]
-    InvalidKnotToml {
-        source: Box<KnotTomlError>,
-        path: SystemPathBuf,
-    },
-}

crates/red_knot_project/src/metadata/options.rs

@@ -1,419 +0,0 @@
-use crate::metadata::value::{RangedValue, RelativePathBuf, ValueSource, ValueSourceGuard};
-use crate::Db;
-use red_knot_python_semantic::lint::{GetLintError, Level, LintSource, RuleSelection};
-use red_knot_python_semantic::{ProgramSettings, PythonPath, PythonPlatform, SearchPathSettings};
-use ruff_db::diagnostic::{Annotation, Diagnostic, DiagnosticFormat, DiagnosticId, Severity, Span};
-use ruff_db::files::system_path_to_file;
-use ruff_db::system::{System, SystemPath};
-use ruff_macros::Combine;
-use ruff_python_ast::PythonVersion;
-use rustc_hash::FxHashMap;
-use serde::{Deserialize, Serialize};
-use std::fmt::Debug;
-use thiserror::Error;
-
-use super::settings::{Settings, TerminalSettings};
-
-/// The options for the project.
-#[derive(Debug, Default, Clone, PartialEq, Eq, Combine, Serialize, Deserialize)]
-#[serde(rename_all = "kebab-case", deny_unknown_fields)]
-#[cfg_attr(feature = "schemars", derive(schemars::JsonSchema))]
-pub struct Options {
-    /// Configures the type checking environment.
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub environment: Option<EnvironmentOptions>,
-
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub src: Option<SrcOptions>,
-
-    /// Configures the enabled lints and their severity.
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub rules: Option<Rules>,
-
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub terminal: Option<TerminalOptions>,
-}
-
-impl Options {
-    pub(crate) fn from_toml_str(content: &str, source: ValueSource) -> Result<Self, KnotTomlError> {
-        let _guard = ValueSourceGuard::new(source, true);
-        let options = toml::from_str(content)?;
-        Ok(options)
-    }
-
-    pub fn deserialize_with<'de, D>(source: ValueSource, deserializer: D) -> Result<Self, D::Error>
-    where
-        D: serde::Deserializer<'de>,
-    {
-        let _guard = ValueSourceGuard::new(source, false);
-        Self::deserialize(deserializer)
-    }
-
-    pub(crate) fn to_program_settings(
-        &self,
-        project_root: &SystemPath,
-        system: &dyn System,
-    ) -> ProgramSettings {
-        let python_version = self
-            .environment
-            .as_ref()
-            .and_then(|env| env.python_version.as_deref().copied())
-            .unwrap_or_default();
-        let python_platform = self
-            .environment
-            .as_ref()
-            .and_then(|env| env.python_platform.as_deref().cloned())
-            .unwrap_or_else(|| {
-                let default = PythonPlatform::default();
-                tracing::info!(
-                    "Defaulting to default python version for this platform: '{default}'",
-                );
-                default
-            });
-        ProgramSettings {
-            python_version,
-            python_platform,
-            search_paths: self.to_search_path_settings(project_root, system),
-        }
-    }
-
-    fn to_search_path_settings(
-        &self,
-        project_root: &SystemPath,
-        system: &dyn System,
-    ) -> SearchPathSettings {
-        let src_roots = if let Some(src_root) = self.src.as_ref().and_then(|src| src.root.as_ref())
-        {
-            vec![src_root.absolute(project_root, system)]
-        } else {
-            let src = project_root.join("src");
-
-            // Default to `src` and the project root if `src` exists and the root hasn't been specified.
-            if system.is_directory(&src) {
-                vec![project_root.to_path_buf(), src]
-            } else {
-                vec![project_root.to_path_buf()]
-            }
-        };
-
-        let (extra_paths, python, typeshed) = self
-            .environment
-            .as_ref()
-            .map(|env| {
-                (
-                    env.extra_paths.clone(),
-                    env.python.clone(),
-                    env.typeshed.clone(),
-                )
-            })
-            .unwrap_or_default();
-
-        SearchPathSettings {
-            extra_paths: extra_paths
-                .unwrap_or_default()
-                .into_iter()
-                .map(|path| path.absolute(project_root, system))
-                .collect(),
-            src_roots,
-            custom_typeshed: typeshed.map(|path| path.absolute(project_root, system)),
-            python_path: python
-                .map(|python_path| {
-                    PythonPath::from_cli_flag(python_path.absolute(project_root, system))
-                })
-                .or_else(|| {
-                    std::env::var("VIRTUAL_ENV")
-                        .ok()
-                        .map(PythonPath::from_virtual_env_var)
-                })
-                .unwrap_or_else(|| PythonPath::Discover(project_root.to_path_buf())),
-        }
-    }
-
-    #[must_use]
-    pub(crate) fn to_settings(&self, db: &dyn Db) -> (Settings, Vec<OptionDiagnostic>) {
-        let (rules, diagnostics) = self.to_rule_selection(db);
-
-        let mut settings = Settings::new(rules);
-
-        if let Some(terminal) = self.terminal.as_ref() {
-            settings.set_terminal(TerminalSettings {
-                output_format: terminal
-                    .output_format
-                    .as_deref()
-                    .copied()
-                    .unwrap_or_default(),
-                error_on_warning: terminal.error_on_warning.unwrap_or_default(),
-            });
-        }
-
-        (settings, diagnostics)
-    }
-
-    #[must_use]
-    fn to_rule_selection(&self, db: &dyn Db) -> (RuleSelection, Vec<OptionDiagnostic>) {
-        let registry = db.lint_registry();
-        let mut diagnostics = Vec::new();
-
-        // Initialize the selection with the defaults
-        let mut selection = RuleSelection::from_registry(registry);
-
-        let rules = self
-            .rules
-            .as_ref()
-            .into_iter()
-            .flat_map(|rules| rules.inner.iter());
-
-        for (rule_name, level) in rules {
-            let source = rule_name.source();
-            match registry.get(rule_name) {
-                Ok(lint) => {
-                    let lint_source = match source {
-                        ValueSource::File(_) => LintSource::File,
-                        ValueSource::Cli => LintSource::Cli,
-                    };
-                    if let Ok(severity) = Severity::try_from(**level) {
-                        selection.enable(lint, severity, lint_source);
-                    } else {
-                        selection.disable(lint);
-                    }
-                }
-                Err(error) => {
-                    // `system_path_to_file` can return `Err` if the file was deleted since the configuration
-                    // was read. This should be rare and it should be okay to default to not showing a configuration
-                    // file in that case.
-                    let file = source
-                        .file()
-                        .and_then(|path| system_path_to_file(db.upcast(), path).ok());
-
-                    // TODO: Add a note if the value was configured on the CLI
-                    let diagnostic = match error {
-                        GetLintError::Unknown(_) => OptionDiagnostic::new(
-                            DiagnosticId::UnknownRule,
-                            format!("Unknown lint rule `{rule_name}`"),
-                            Severity::Warning,
-                        ),
-                        GetLintError::PrefixedWithCategory { suggestion, .. } => {
-                            OptionDiagnostic::new(
-                                DiagnosticId::UnknownRule,
-                                format!(
-                                    "Unknown lint rule `{rule_name}`. Did you mean `{suggestion}`?"
-                                ),
-                                Severity::Warning,
-                            )
-                        }
-
-                        GetLintError::Removed(_) => OptionDiagnostic::new(
-                            DiagnosticId::UnknownRule,
-                            format!("Unknown lint rule `{rule_name}`"),
-                            Severity::Warning,
-                        ),
-                    };
-
-                    let span = file.map(Span::from).map(|span| {
-                        if let Some(range) = rule_name.range() {
-                            span.with_range(range)
-                        } else {
-                            span
-                        }
-                    });
-                    diagnostics.push(diagnostic.with_span(span));
-                }
-            }
-        }
-
-        (selection, diagnostics)
-    }
-}
-
-#[derive(Debug, Default, Clone, Eq, PartialEq, Combine, Serialize, Deserialize)]
-#[serde(rename_all = "kebab-case", deny_unknown_fields)]
-#[cfg_attr(feature = "schemars", derive(schemars::JsonSchema))]
-pub struct EnvironmentOptions {
-    /// Specifies the version of Python that will be used to analyze the source code.
-    /// The version should be specified as a string in the format `M.m` where `M` is the major version
-    /// and `m` is the minor (e.g. "3.0" or "3.6").
-    /// If a version is provided, knot will generate errors if the source code makes use of language features
-    /// that are not supported in that version.
-    /// It will also tailor its use of type stub files, which conditionalizes type definitions based on the version.
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub python_version: Option<RangedValue<PythonVersion>>,
-
-    /// Specifies the target platform that will be used to analyze the source code.
-    /// If specified, Red Knot will tailor its use of type stub files,
-    /// which conditionalize type definitions based on the platform.
-    ///
-    /// If no platform is specified, knot will use the current platform:
-    /// - `win32` for Windows
-    /// - `darwin` for macOS
-    /// - `android` for Android
-    /// - `ios` for iOS
-    /// - `linux` for everything else
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub python_platform: Option<RangedValue<PythonPlatform>>,
-
-    /// List of user-provided paths that should take first priority in the module resolution.
-    /// Examples in other type checkers are mypy's MYPYPATH environment variable,
-    /// or pyright's stubPath configuration setting.
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub extra_paths: Option<Vec<RelativePathBuf>>,
-
-    /// Optional path to a "typeshed" directory on disk for us to use for standard-library types.
-    /// If this is not provided, we will fallback to our vendored typeshed stubs for the stdlib,
-    /// bundled as a zip file in the binary
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub typeshed: Option<RelativePathBuf>,
-
-    /// Path to the Python installation from which Red Knot resolves type information and third-party dependencies.
-    ///
-    /// Red Knot will search in the path's `site-packages` directories for type information and
-    /// third-party imports.
-    ///
-    /// This option is commonly used to specify the path to a virtual environment.
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub python: Option<RelativePathBuf>,
-}
-
-#[derive(Debug, Default, Clone, Eq, PartialEq, Combine, Serialize, Deserialize)]
-#[serde(rename_all = "kebab-case", deny_unknown_fields)]
-#[cfg_attr(feature = "schemars", derive(schemars::JsonSchema))]
-pub struct SrcOptions {
-    /// The root of the project, used for finding first-party modules.
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub root: Option<RelativePathBuf>,
-}
-
-#[derive(Debug, Default, Clone, Eq, PartialEq, Combine, Serialize, Deserialize)]
-#[serde(rename_all = "kebab-case", transparent)]
-#[cfg_attr(feature = "schemars", derive(schemars::JsonSchema))]
-pub struct Rules {
-    #[cfg_attr(feature = "schemars", schemars(with = "schema::Rules"))]
-    inner: FxHashMap<RangedValue<String>, RangedValue<Level>>,
-}
-
-impl FromIterator<(RangedValue<String>, RangedValue<Level>)> for Rules {
-    fn from_iter<T: IntoIterator<Item = (RangedValue<String>, RangedValue<Level>)>>(
-        iter: T,
-    ) -> Self {
-        Self {
-            inner: iter.into_iter().collect(),
-        }
-    }
-}
-
-#[derive(Debug, Default, Clone, Eq, PartialEq, Combine, Serialize, Deserialize)]
-#[serde(rename_all = "kebab-case", deny_unknown_fields)]
-#[cfg_attr(feature = "schemars", derive(schemars::JsonSchema))]
-pub struct TerminalOptions {
-    /// The format to use for printing diagnostic messages.
-    ///
-    /// Defaults to `full`.
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub output_format: Option<RangedValue<DiagnosticFormat>>,
-    /// Use exit code 1 if there are any warning-level diagnostics.
-    ///
-    /// Defaults to `false`.
-    pub error_on_warning: Option<bool>,
-}
-
-#[cfg(feature = "schemars")]
-mod schema {
-    use crate::DEFAULT_LINT_REGISTRY;
-    use red_knot_python_semantic::lint::Level;
-    use schemars::gen::SchemaGenerator;
-    use schemars::schema::{
-        InstanceType, Metadata, ObjectValidation, Schema, SchemaObject, SubschemaValidation,
-    };
-    use schemars::JsonSchema;
-
-    pub(super) struct Rules;
-
-    impl JsonSchema for Rules {
-        fn schema_name() -> String {
-            "Rules".to_string()
-        }
-
-        fn json_schema(gen: &mut SchemaGenerator) -> Schema {
-            let registry = &*DEFAULT_LINT_REGISTRY;
-
-            let level_schema = gen.subschema_for::<Level>();
-
-            let properties: schemars::Map<String, Schema> = registry
-                .lints()
-                .iter()
-                .map(|lint| {
-                    (
-                        lint.name().to_string(),
-                        Schema::Object(SchemaObject {
-                            metadata: Some(Box::new(Metadata {
-                                title: Some(lint.summary().to_string()),
-                                description: Some(lint.documentation()),
-                                deprecated: lint.status.is_deprecated(),
-                                default: Some(lint.default_level.to_string().into()),
-                                ..Metadata::default()
-                            })),
-                            subschemas: Some(Box::new(SubschemaValidation {
-                                one_of: Some(vec![level_schema.clone()]),
-                                ..Default::default()
-                            })),
-                            ..Default::default()
-                        }),
-                    )
-                })
-                .collect();
-
-            Schema::Object(SchemaObject {
-                instance_type: Some(InstanceType::Object.into()),
-                object: Some(Box::new(ObjectValidation {
-                    properties,
-                    // Allow unknown rules: Red Knot will warn about them.
-                    // It gives a better experience when using an older Red Knot version because
-                    // the schema will not deny rules that have been removed in newer versions.
-                    additional_properties: Some(Box::new(level_schema)),
-                    ..ObjectValidation::default()
-                })),
-
-                ..Default::default()
-            })
-        }
-    }
-}
-
-#[derive(Error, Debug)]
-pub enum KnotTomlError {
-    #[error(transparent)]
-    TomlSyntax(#[from] toml::de::Error),
-}
-
-#[derive(Debug, PartialEq, Eq, Clone)]
-pub struct OptionDiagnostic {
-    id: DiagnosticId,
-    message: String,
-    severity: Severity,
-    span: Option<Span>,
-}
-
-impl OptionDiagnostic {
-    pub fn new(id: DiagnosticId, message: String, severity: Severity) -> Self {
-        Self {
-            id,
-            message,
-            severity,
-            span: None,
-        }
-    }
-
-    #[must_use]
-    fn with_span(self, span: Option<Span>) -> Self {
-        OptionDiagnostic { span, ..self }
-    }
-
-    pub(crate) fn to_diagnostic(&self) -> Diagnostic {
-        if let Some(ref span) = self.span {
-            let mut diag = Diagnostic::new(self.id, self.severity, "");
-            diag.annotate(Annotation::primary(span.clone()).message(&self.message));
-            diag
-        } else {
-            Diagnostic::new(self.id, self.severity, &self.message)
-        }
-    }
-}

crates/red_knot_project/src/metadata/settings.rs

@@ -1,55 +0,0 @@
-use std::sync::Arc;
-
-use red_knot_python_semantic::lint::RuleSelection;
-use ruff_db::diagnostic::DiagnosticFormat;
-
-/// The resolved [`super::Options`] for the project.
-///
-/// Unlike [`super::Options`], the struct has default values filled in and
-/// uses representations that are optimized for reads (instead of preserving the source representation).
-/// It's also not required that this structure precisely resembles the TOML schema, although
-/// it's encouraged to use a similar structure.
-///
-/// It's worth considering to adding a salsa query for specific settings to
-/// limit the blast radius when only some settings change. For example,
-/// changing the terminal settings shouldn't invalidate any core type-checking queries.
-/// This can be achieved by adding a salsa query for the type checking specific settings.
-///
-/// Settings that are part of [`red_knot_python_semantic::ProgramSettings`] are not included here.
-#[derive(Clone, Debug, Eq, PartialEq)]
-pub struct Settings {
-    rules: Arc<RuleSelection>,
-
-    terminal: TerminalSettings,
-}
-
-impl Settings {
-    pub fn new(rules: RuleSelection) -> Self {
-        Self {
-            rules: Arc::new(rules),
-            terminal: TerminalSettings::default(),
-        }
-    }
-
-    pub fn rules(&self) -> &RuleSelection {
-        &self.rules
-    }
-
-    pub fn to_rules(&self) -> Arc<RuleSelection> {
-        self.rules.clone()
-    }
-
-    pub fn terminal(&self) -> &TerminalSettings {
-        &self.terminal
-    }
-
-    pub fn set_terminal(&mut self, terminal: TerminalSettings) {
-        self.terminal = terminal;
-    }
-}
-
-#[derive(Debug, Clone, PartialEq, Eq, Default)]
-pub struct TerminalSettings {
-    pub output_format: DiagnosticFormat,
-    pub error_on_warning: bool,
-}

crates/red_knot_project/tests/check.rs

@@ -1,292 +0,0 @@
-use anyhow::{anyhow, Context};
-use red_knot_project::{ProjectDatabase, ProjectMetadata};
-use red_knot_python_semantic::{HasType, SemanticModel};
-use ruff_db::files::{system_path_to_file, File};
-use ruff_db::parsed::parsed_module;
-use ruff_db::system::{SystemPath, SystemPathBuf, TestSystem};
-use ruff_python_ast::visitor::source_order;
-use ruff_python_ast::visitor::source_order::SourceOrderVisitor;
-use ruff_python_ast::{
-    self as ast, Alias, Comprehension, Expr, Parameter, ParameterWithDefault, Stmt,
-};
-
-fn setup_db(project_root: &SystemPath, system: TestSystem) -> anyhow::Result<ProjectDatabase> {
-    let project = ProjectMetadata::discover(project_root, &system)?;
-    ProjectDatabase::new(project, system)
-}
-
-fn get_cargo_workspace_root() -> anyhow::Result<SystemPathBuf> {
-    Ok(SystemPathBuf::from(String::from_utf8(
-        std::process::Command::new("cargo")
-            .args(["locate-project", "--workspace", "--message-format", "plain"])
-            .output()?
-            .stdout,
-    )?)
-    .parent()
-    .unwrap()
-    .to_owned())
-}
-
-/// Test that all snippets in testcorpus can be checked without panic (except for [`KNOWN_FAILURES`])
-#[test]
-fn corpus_no_panic() -> anyhow::Result<()> {
-    let crate_root = String::from(env!("CARGO_MANIFEST_DIR"));
-    run_corpus_tests(&format!("{crate_root}/resources/test/corpus/**/*.py"))
-}
-
-#[test]
-fn parser_no_panic() -> anyhow::Result<()> {
-    let workspace_root = get_cargo_workspace_root()?;
-    run_corpus_tests(&format!(
-        "{workspace_root}/crates/ruff_python_parser/resources/**/*.py"
-    ))
-}
-
-#[test]
-fn linter_af_no_panic() -> anyhow::Result<()> {
-    let workspace_root = get_cargo_workspace_root()?;
-    run_corpus_tests(&format!(
-        "{workspace_root}/crates/ruff_linter/resources/test/fixtures/[a-f]*/**/*.py"
-    ))
-}
-
-#[test]
-fn linter_gz_no_panic() -> anyhow::Result<()> {
-    let workspace_root = get_cargo_workspace_root()?;
-    run_corpus_tests(&format!(
-        "{workspace_root}/crates/ruff_linter/resources/test/fixtures/[g-z]*/**/*.py"
-    ))
-}
-
-#[test]
-#[ignore = "Enable running once there are fewer failures"]
-fn linter_stubs_no_panic() -> anyhow::Result<()> {
-    let workspace_root = get_cargo_workspace_root()?;
-    run_corpus_tests(&format!(
-        "{workspace_root}/crates/ruff_linter/resources/test/fixtures/**/*.pyi"
-    ))
-}
-
-#[test]
-#[ignore = "Enable running over typeshed stubs once there are fewer failures"]
-fn typeshed_no_panic() -> anyhow::Result<()> {
-    let workspace_root = get_cargo_workspace_root()?;
-    run_corpus_tests(&format!(
-        "{workspace_root}/crates/red_knot_vendored/vendor/typeshed/**/*.pyi"
-    ))
-}
-
-#[allow(clippy::print_stdout)]
-fn run_corpus_tests(pattern: &str) -> anyhow::Result<()> {
-    let root = SystemPathBuf::from("/src");
-
-    let system = TestSystem::default();
-    let memory_fs = system.memory_file_system();
-    memory_fs.create_directory_all(root.as_ref())?;
-
-    let mut db = setup_db(&root, system.clone())?;
-
-    let workspace_root = get_cargo_workspace_root()?;
-    let workspace_root = workspace_root.to_string();
-
-    let corpus = glob::glob(pattern).context("Failed to compile pattern")?;
-
-    for path in corpus {
-        let path = path.context("Failed to glob path")?;
-        let path = SystemPathBuf::from_path_buf(path).map_err(|path| {
-            anyhow!(
-                "Failed to convert path '{path}' to system path",
-                path = path.display()
-            )
-        })?;
-
-        let relative_path = path.strip_prefix(&workspace_root)?;
-
-        let (py_expected_to_fail, pyi_expected_to_fail) = KNOWN_FAILURES
-            .iter()
-            .find_map(|(path, py_fail, pyi_fail)| {
-                if *path == relative_path.as_str().replace('\\', "/") {
-                    Some((*py_fail, *pyi_fail))
-                } else {
-                    None
-                }
-            })
-            .unwrap_or((false, false));
-
-        let source = path.as_path();
-        let source_filename = source.file_name().unwrap();
-
-        let code = std::fs::read_to_string(source)?;
-
-        let mut check_with_file_name = |path: &SystemPath| {
-            memory_fs.write_file_all(path, &code).unwrap();
-            File::sync_path(&mut db, path);
-
-            // this test is only asserting that we can pull every expression type without a panic
-            // (and some non-expressions that clearly define a single type)
-            let file = system_path_to_file(&db, path).unwrap();
-
-            let result = std::panic::catch_unwind(|| pull_types(&db, file));
-
-            let expected_to_fail = if path.extension().map(|e| e == "pyi").unwrap_or(false) {
-                pyi_expected_to_fail
-            } else {
-                py_expected_to_fail
-            };
-            if let Err(err) = result {
-                if !expected_to_fail {
-                    println!("Check failed for {relative_path:?}. Consider fixing it or adding it to KNOWN_FAILURES");
-                    std::panic::resume_unwind(err);
-                }
-            } else {
-                assert!(!expected_to_fail, "Expected to panic, but did not. Consider removing this path from KNOWN_FAILURES");
-            }
-
-            memory_fs.remove_file(path).unwrap();
-            file.sync(&mut db);
-        };
-
-        if source.extension() == Some("pyi") {
-            println!("checking {relative_path}");
-            let pyi_dest = root.join(source_filename);
-            check_with_file_name(&pyi_dest);
-        } else {
-            println!("checking {relative_path}");
-            let py_dest = root.join(source_filename);
-            check_with_file_name(&py_dest);
-
-            let pyi_dest = root.join(format!("{source_filename}i"));
-            println!("re-checking as stub file: {pyi_dest}");
-            check_with_file_name(&pyi_dest);
-        }
-    }
-
-    Ok(())
-}
-
-fn pull_types(db: &ProjectDatabase, file: File) {
-    let mut visitor = PullTypesVisitor::new(db, file);
-
-    let ast = parsed_module(db, file);
-
-    visitor.visit_body(ast.suite());
-}
-
-struct PullTypesVisitor<'db> {
-    model: SemanticModel<'db>,
-}
-
-impl<'db> PullTypesVisitor<'db> {
-    fn new(db: &'db ProjectDatabase, file: File) -> Self {
-        Self {
-            model: SemanticModel::new(db, file),
-        }
-    }
-
-    fn visit_target(&mut self, target: &Expr) {
-        match target {
-            Expr::List(ast::ExprList { elts, .. }) | Expr::Tuple(ast::ExprTuple { elts, .. }) => {
-                for element in elts {
-                    self.visit_target(element);
-                }
-            }
-            _ => self.visit_expr(target),
-        }
-    }
-}
-
-impl SourceOrderVisitor<'_> for PullTypesVisitor<'_> {
-    fn visit_stmt(&mut self, stmt: &Stmt) {
-        match stmt {
-            Stmt::FunctionDef(function) => {
-                let _ty = function.inferred_type(&self.model);
-            }
-            Stmt::ClassDef(class) => {
-                let _ty = class.inferred_type(&self.model);
-            }
-            Stmt::Assign(assign) => {
-                for target in &assign.targets {
-                    self.visit_target(target);
-                }
-                self.visit_expr(&assign.value);
-                return;
-            }
-            Stmt::For(for_stmt) => {
-                self.visit_target(&for_stmt.target);
-                self.visit_expr(&for_stmt.iter);
-                self.visit_body(&for_stmt.body);
-                self.visit_body(&for_stmt.orelse);
-                return;
-            }
-            Stmt::With(with_stmt) => {
-                for item in &with_stmt.items {
-                    if let Some(target) = &item.optional_vars {
-                        self.visit_target(target);
-                    }
-                    self.visit_expr(&item.context_expr);
-                }
-
-                self.visit_body(&with_stmt.body);
-                return;
-            }
-            Stmt::AnnAssign(_)
-            | Stmt::Return(_)
-            | Stmt::Delete(_)
-            | Stmt::AugAssign(_)
-            | Stmt::TypeAlias(_)
-            | Stmt::While(_)
-            | Stmt::If(_)
-            | Stmt::Match(_)
-            | Stmt::Raise(_)
-            | Stmt::Try(_)
-            | Stmt::Assert(_)
-            | Stmt::Import(_)
-            | Stmt::ImportFrom(_)
-            | Stmt::Global(_)
-            | Stmt::Nonlocal(_)
-            | Stmt::Expr(_)
-            | Stmt::Pass(_)
-            | Stmt::Break(_)
-            | Stmt::Continue(_)
-            | Stmt::IpyEscapeCommand(_) => {}
-        }
-
-        source_order::walk_stmt(self, stmt);
-    }
-
-    fn visit_expr(&mut self, expr: &Expr) {
-        let _ty = expr.inferred_type(&self.model);
-
-        source_order::walk_expr(self, expr);
-    }
-
-    fn visit_comprehension(&mut self, comprehension: &Comprehension) {
-        self.visit_expr(&comprehension.iter);
-        self.visit_target(&comprehension.target);
-        for if_expr in &comprehension.ifs {
-            self.visit_expr(if_expr);
-        }
-    }
-
-    fn visit_parameter(&mut self, parameter: &Parameter) {
-        let _ty = parameter.inferred_type(&self.model);
-
-        source_order::walk_parameter(self, parameter);
-    }
-
-    fn visit_parameter_with_default(&mut self, parameter_with_default: &ParameterWithDefault) {
-        let _ty = parameter_with_default.inferred_type(&self.model);
-
-        source_order::walk_parameter_with_default(self, parameter_with_default);
-    }
-
-    fn visit_alias(&mut self, alias: &Alias) {
-        let _ty = alias.inferred_type(&self.model);
-
-        source_order::walk_alias(self, alias);
-    }
-}
-
-/// Whether or not the .py/.pyi version of this file is expected to fail
-#[rustfmt::skip]
-const KNOWN_FAILURES: &[(&str, bool, bool)] = &[];

crates/red_knot_python_semantic/resources/mdtest/annotations/any.md

@@ -1,83 +0,0 @@
-# Any
-
-## Annotation
-
-`typing.Any` is a way to name the Any type.
-
-```py
-from typing import Any
-
-x: Any = 1
-x = "foo"
-
-def f():
-    reveal_type(x)  # revealed: Any
-```
-
-## Aliased to a different name
-
-If you alias `typing.Any` to another name, we still recognize that as a spelling of the Any type.
-
-```py
-from typing import Any as RenamedAny
-
-x: RenamedAny = 1
-x = "foo"
-
-def f():
-    reveal_type(x)  # revealed: Any
-```
-
-## Shadowed class
-
-If you define your own class named `Any`, using that in a type expression refers to your class, and
-isn't a spelling of the Any type.
-
-```py
-class Any: ...
-
-x: Any
-
-def f():
-    reveal_type(x)  # revealed: Any
-
-# This verifies that we're not accidentally seeing typing.Any, since str is assignable
-# to that but not to our locally defined class.
-y: Any = "not an Any"  # error: [invalid-assignment]
-```
-
-## Subclass
-
-The spec allows you to define subclasses of `Any`.
-
-TODO: Handle assignments correctly. `Subclass` has an unknown superclass, which might be `int`. The
-assignment to `x` should not be allowed, even when the unknown superclass is `int`. The assignment
-to `y` should be allowed, since `Subclass` might have `int` as a superclass, and is therefore
-assignable to `int`.
-
-```py
-from typing import Any
-
-class Subclass(Any): ...
-
-reveal_type(Subclass.__mro__)  # revealed: tuple[Literal[Subclass], Any, Literal[object]]
-
-x: Subclass = 1  # error: [invalid-assignment]
-# TODO: no diagnostic
-y: int = Subclass()  # error: [invalid-assignment]
-
-def _(s: Subclass):
-    reveal_type(s)  # revealed: Subclass
-```
-
-## Invalid
-
-`Any` cannot be parameterized:
-
-```py
-from typing import Any
-
-# error: [invalid-type-form] "Type `typing.Any` expected no type parameter"
-def f(x: Any[int]):
-    reveal_type(x)  # revealed: Unknown
-```

crates/red_knot_python_semantic/resources/mdtest/annotations/invalid.md

@@ -1,114 +0,0 @@
-# Tests for invalid types in type expressions
-
-## Invalid types are rejected
-
-Many types are illegal in the context of a type expression:
-
-```py
-import typing
-from knot_extensions import AlwaysTruthy, AlwaysFalsy
-from typing_extensions import Literal, Never
-
-class A: ...
-
-def _(
-    a: type[int],
-    b: AlwaysTruthy,
-    c: AlwaysFalsy,
-    d: Literal[True],
-    e: Literal["bar"],
-    f: Literal[b"foo"],
-    g: tuple[int, str],
-    h: Never,
-    i: int,
-    j: A,
-):
-    def foo(): ...
-    def invalid(
-        a_: a,  # error: [invalid-type-form] "Variable of type `type[int]` is not allowed in a type expression"
-        b_: b,  # error: [invalid-type-form]
-        c_: c,  # error: [invalid-type-form]
-        d_: d,  # error: [invalid-type-form]
-        e_: e,  # error: [invalid-type-form]
-        f_: f,  # error: [invalid-type-form]
-        g_: g,  # error: [invalid-type-form]
-        h_: h,  # error: [invalid-type-form]
-        i_: typing,  # error: [invalid-type-form]
-        j_: foo,  # error: [invalid-type-form]
-        k_: i,  # error: [invalid-type-form] "Variable of type `int` is not allowed in a type expression"
-        l_: j,  # error: [invalid-type-form] "Variable of type `A` is not allowed in a type expression"
-    ):
-        reveal_type(a_)  # revealed: Unknown
-        reveal_type(b_)  # revealed: Unknown
-        reveal_type(c_)  # revealed: Unknown
-        reveal_type(d_)  # revealed: Unknown
-        reveal_type(e_)  # revealed: Unknown
-        reveal_type(f_)  # revealed: Unknown
-        reveal_type(g_)  # revealed: Unknown
-        reveal_type(h_)  # revealed: Unknown
-        reveal_type(i_)  # revealed: Unknown
-        reveal_type(j_)  # revealed: Unknown
-```
-
-## Invalid AST nodes
-
-```py
-def bar() -> None:
-    return None
-
-def _(
-    a: 1,  # error: [invalid-type-form] "Int literals are not allowed in this context in a type expression"
-    b: 2.3,  # error: [invalid-type-form] "Float literals are not allowed in type expressions"
-    c: 4j,  # error: [invalid-type-form] "Complex literals are not allowed in type expressions"
-    d: True,  # error: [invalid-type-form] "Boolean literals are not allowed in this context in a type expression"
-    e: int | b"foo",  # error: [invalid-type-form] "Bytes literals are not allowed in this context in a type expression"
-    f: 1 and 2,  # error: [invalid-type-form] "Boolean operations are not allowed in type expressions"
-    g: 1 or 2,  # error: [invalid-type-form] "Boolean operations are not allowed in type expressions"
-    h: (foo := 1),  # error: [invalid-type-form] "Named expressions are not allowed in type expressions"
-    i: not 1,  # error: [invalid-type-form] "Unary operations are not allowed in type expressions"
-    j: lambda: 1,  # error: [invalid-type-form] "`lambda` expressions are not allowed in type expressions"
-    k: 1 if True else 2,  # error: [invalid-type-form] "`if` expressions are not allowed in type expressions"
-    l: await 1,  # error: [invalid-type-form] "`await` expressions are not allowed in type expressions"
-    m: (yield 1),  # error: [invalid-type-form] "`yield` expressions are not allowed in type expressions"
-    n: (yield from [1]),  # error: [invalid-type-form] "`yield from` expressions are not allowed in type expressions"
-    o: 1 < 2,  # error: [invalid-type-form] "Comparison expressions are not allowed in type expressions"
-    p: bar(),  # error: [invalid-type-form] "Function calls are not allowed in type expressions"
-    q: int | f"foo",  # error: [invalid-type-form] "F-strings are not allowed in type expressions"
-    r: [1, 2, 3][1:2],  # error: [invalid-type-form] "Slices are not allowed in type expressions"
-):
-    reveal_type(a)  # revealed: Unknown
-    reveal_type(b)  # revealed: Unknown
-    reveal_type(c)  # revealed: Unknown
-    reveal_type(d)  # revealed: Unknown
-    reveal_type(e)  # revealed: int | Unknown
-    reveal_type(f)  # revealed: Unknown
-    reveal_type(g)  # revealed: Unknown
-    reveal_type(h)  # revealed: Unknown
-    reveal_type(i)  # revealed: Unknown
-    reveal_type(j)  # revealed: Unknown
-    reveal_type(k)  # revealed: Unknown
-    reveal_type(p)  # revealed: Unknown
-    reveal_type(q)  # revealed: int | Unknown
-    reveal_type(r)  # revealed: @Todo(unknown type subscript)
-```
-
-## Invalid Collection based AST nodes
-
-```py
-def _(
-    a: {1: 2},  # error: [invalid-type-form] "Dict literals are not allowed in type expressions"
-    b: {1, 2},  # error: [invalid-type-form] "Set literals are not allowed in type expressions"
-    c: {k: v for k, v in [(1, 2)]},  # error: [invalid-type-form] "Dict comprehensions are not allowed in type expressions"
-    d: [k for k in [1, 2]],  # error: [invalid-type-form] "List comprehensions are not allowed in type expressions"
-    e: {k for k in [1, 2]},  # error: [invalid-type-form] "Set comprehensions are not allowed in type expressions"
-    f: (k for k in [1, 2]),  # error: [invalid-type-form] "Generator expressions are not allowed in type expressions"
-    g: [int, str],  # error: [invalid-type-form] "List literals are not allowed in this context in a type expression"
-):
-    reveal_type(a)  # revealed: Unknown
-    reveal_type(b)  # revealed: Unknown
-    reveal_type(c)  # revealed: Unknown
-    reveal_type(d)  # revealed: Unknown
-    reveal_type(e)  # revealed: Unknown
-    reveal_type(f)  # revealed: Unknown
-    reveal_type(g)  # revealed: Unknown
-```

crates/red_knot_python_semantic/resources/mdtest/annotations/stdlib_typing_aliases.md

@@ -1,129 +0,0 @@
-# Typing-module aliases to other stdlib classes
-
-The `typing` module has various aliases to other stdlib classes. These are a legacy feature, but
-still need to be supported by a type checker.
-
-## Correspondence
-
-All of the following symbols can be mapped one-to-one with the actual type:
-
-```py
-import typing
-
-def f(
-    list_bare: typing.List,
-    list_parametrized: typing.List[int],
-    dict_bare: typing.Dict,
-    dict_parametrized: typing.Dict[int, str],
-    set_bare: typing.Set,
-    set_parametrized: typing.Set[int],
-    frozen_set_bare: typing.FrozenSet,
-    frozen_set_parametrized: typing.FrozenSet[str],
-    chain_map_bare: typing.ChainMap,
-    chain_map_parametrized: typing.ChainMap[int],
-    counter_bare: typing.Counter,
-    counter_parametrized: typing.Counter[int],
-    default_dict_bare: typing.DefaultDict,
-    default_dict_parametrized: typing.DefaultDict[str, int],
-    deque_bare: typing.Deque,
-    deque_parametrized: typing.Deque[str],
-    ordered_dict_bare: typing.OrderedDict,
-    ordered_dict_parametrized: typing.OrderedDict[int, str],
-):
-    reveal_type(list_bare)  # revealed: list
-    reveal_type(list_parametrized)  # revealed: list
-
-    reveal_type(dict_bare)  # revealed: dict
-    reveal_type(dict_parametrized)  # revealed: dict
-
-    reveal_type(set_bare)  # revealed: set
-    reveal_type(set_parametrized)  # revealed: set
-
-    reveal_type(frozen_set_bare)  # revealed: frozenset
-    reveal_type(frozen_set_parametrized)  # revealed: frozenset
-
-    reveal_type(chain_map_bare)  # revealed: ChainMap
-    reveal_type(chain_map_parametrized)  # revealed: ChainMap
-
-    reveal_type(counter_bare)  # revealed: Counter
-    reveal_type(counter_parametrized)  # revealed: Counter
-
-    reveal_type(default_dict_bare)  # revealed: defaultdict
-    reveal_type(default_dict_parametrized)  # revealed: defaultdict
-
-    reveal_type(deque_bare)  # revealed: deque
-    reveal_type(deque_parametrized)  # revealed: deque
-
-    reveal_type(ordered_dict_bare)  # revealed: OrderedDict
-    reveal_type(ordered_dict_parametrized)  # revealed: OrderedDict
-```
-
-## Inheritance
-
-The aliases can be inherited from. Some of these are still partially or wholly TODOs.
-
-```py
-import typing
-
-####################
-### Built-ins
-####################
-
-class ListSubclass(typing.List): ...
-
-# TODO: generic protocols
-# revealed: tuple[Literal[ListSubclass], Literal[list], Literal[MutableSequence], Literal[Sequence], Literal[Reversible], Literal[Collection], Literal[Iterable], Literal[Container], @Todo(`Protocol[]` subscript), @Todo(`Generic[]` subscript), Literal[object]]
-reveal_type(ListSubclass.__mro__)
-
-class DictSubclass(typing.Dict): ...
-
-# TODO: generic protocols
-# revealed: tuple[Literal[DictSubclass], Literal[dict], Literal[MutableMapping], Literal[Mapping], Literal[Collection], Literal[Iterable], Literal[Container], @Todo(`Protocol[]` subscript), @Todo(`Generic[]` subscript), Literal[object]]
-reveal_type(DictSubclass.__mro__)
-
-class SetSubclass(typing.Set): ...
-
-# TODO: generic protocols
-# revealed: tuple[Literal[SetSubclass], Literal[set], Literal[MutableSet], Literal[AbstractSet], Literal[Collection], Literal[Iterable], Literal[Container], @Todo(`Protocol[]` subscript), @Todo(`Generic[]` subscript), Literal[object]]
-reveal_type(SetSubclass.__mro__)
-
-class FrozenSetSubclass(typing.FrozenSet): ...
-
-# TODO: should have `Generic`, should not have `Unknown`
-# revealed: tuple[Literal[FrozenSetSubclass], Literal[frozenset], Unknown, Literal[object]]
-reveal_type(FrozenSetSubclass.__mro__)
-
-####################
-### `collections`
-####################
-
-class ChainMapSubclass(typing.ChainMap): ...
-
-# TODO: generic protocols
-# revealed: tuple[Literal[ChainMapSubclass], Literal[ChainMap], Literal[MutableMapping], Literal[Mapping], Literal[Collection], Literal[Iterable], Literal[Container], @Todo(`Protocol[]` subscript), @Todo(`Generic[]` subscript), Literal[object]]
-reveal_type(ChainMapSubclass.__mro__)
-
-class CounterSubclass(typing.Counter): ...
-
-# TODO: Should be (CounterSubclass, Counter, dict, MutableMapping, Mapping, Collection, Sized, Iterable, Container, Generic, object)
-# revealed: tuple[Literal[CounterSubclass], Literal[Counter], Unknown, Literal[object]]
-reveal_type(CounterSubclass.__mro__)
-
-class DefaultDictSubclass(typing.DefaultDict): ...
-
-# TODO: Should be (DefaultDictSubclass, defaultdict, dict, MutableMapping, Mapping, Collection, Sized, Iterable, Container, Generic, object)
-# revealed: tuple[Literal[DefaultDictSubclass], Literal[defaultdict], Unknown, Literal[object]]
-reveal_type(DefaultDictSubclass.__mro__)
-
-class DequeSubclass(typing.Deque): ...
-
-# TODO: generic protocols
-# revealed: tuple[Literal[DequeSubclass], Literal[deque], Literal[MutableSequence], Literal[Sequence], Literal[Reversible], Literal[Collection], Literal[Iterable], Literal[Container], @Todo(`Protocol[]` subscript), @Todo(`Generic[]` subscript), Literal[object]]
-reveal_type(DequeSubclass.__mro__)
-
-class OrderedDictSubclass(typing.OrderedDict): ...
-
-# TODO: Should be (OrderedDictSubclass, OrderedDict, dict, MutableMapping, Mapping, Collection, Sized, Iterable, Container, Generic, object)
-# revealed: tuple[Literal[OrderedDictSubclass], Literal[OrderedDict], Unknown, Literal[object]]
-reveal_type(OrderedDictSubclass.__mro__)
-```

crates/red_knot_python_semantic/resources/mdtest/binary/tuples.md

@@ -1,22 +0,0 @@
-# Binary operations on tuples
-
-## Concatenation for heterogeneous tuples
-
-```py
-reveal_type((1, 2) + (3, 4))  # revealed: tuple[Literal[1], Literal[2], Literal[3], Literal[4]]
-reveal_type(() + (1, 2))  # revealed: tuple[Literal[1], Literal[2]]
-reveal_type((1, 2) + ())  # revealed: tuple[Literal[1], Literal[2]]
-reveal_type(() + ())  # revealed: tuple[()]
-
-def _(x: tuple[int, str], y: tuple[None, tuple[int]]):
-    reveal_type(x + y)  # revealed: tuple[int, str, None, tuple[int]]
-    reveal_type(y + x)  # revealed: tuple[None, tuple[int], int, str]
-```
-
-## Concatenation for homogeneous tuples
-
-```py
-def _(x: tuple[int, ...], y: tuple[str, ...]):
-    reveal_type(x + y)  # revealed: @Todo(full tuple[...] support)
-    reveal_type(x + (1, 2))  # revealed: @Todo(full tuple[...] support)
-```

crates/red_knot_python_semantic/resources/mdtest/diagnostics/no_matching_overload.md

@@ -1,14 +0,0 @@
-# No matching overload diagnostics
-
-<!-- snapshot-diagnostics -->
-
-## Calls to overloaded functions
-
-TODO: Note that we do not yet support the `@overload` decorator to define overloaded functions in
-real Python code. We are instead testing a special-cased function where we create an overloaded
-signature internally. Update this to an `@overload` function in the Python snippet itself once we
-can.
-
-```py
-type("Foo", ())  # error: [no-matching-overload]
-```

crates/red_knot_python_semantic/resources/mdtest/exception/except_star.md

@@ -1,66 +0,0 @@
-# `except*`
-
-`except*` is only available in Python 3.11 and later:
-
-```toml
-[environment]
-python-version = "3.11"
-```
-
-## `except*` with `BaseException`
-
-```py
-try:
-    help()
-except* BaseException as e:
-    # TODO: should be `BaseExceptionGroup[BaseException]` --Alex
-    reveal_type(e)  # revealed: BaseExceptionGroup
-```
-
-## `except*` with specific exception
-
-```py
-try:
-    help()
-except* OSError as e:
-    # TODO: more precise would be `ExceptionGroup[OSError]` --Alex
-    # (needs homogeneous tuples + generics)
-    reveal_type(e)  # revealed: BaseExceptionGroup
-```
-
-## `except*` with multiple exceptions
-
-```py
-try:
-    help()
-except* (TypeError, AttributeError) as e:
-    # TODO: more precise would be `ExceptionGroup[TypeError | AttributeError]` --Alex
-    # (needs homogeneous tuples + generics)
-    reveal_type(e)  # revealed: BaseExceptionGroup
-```
-
-## `except*` with mix of `Exception`s and `BaseException`s
-
-```py
-try:
-    help()
-except* (KeyboardInterrupt, AttributeError) as e:
-    # TODO: more precise would be `BaseExceptionGroup[KeyboardInterrupt | AttributeError]` --Alex
-    reveal_type(e)  # revealed: BaseExceptionGroup
-```
-
-## Invalid `except*` handlers
-
-```py
-try:
-    help()
-except* 3 as e:  # error: [invalid-exception-caught]
-    # TODO: Should be `BaseExceptionGroup[Unknown]` --Alex
-    reveal_type(e)  # revealed: BaseExceptionGroup
-
-try:
-    help()
-except* (AttributeError, 42) as e:  # error: [invalid-exception-caught]
-    # TODO: Should be `BaseExceptionGroup[AttributeError | Unknown]` --Alex
-    reveal_type(e)  # revealed: BaseExceptionGroup
-```

crates/red_knot_python_semantic/resources/mdtest/generics/classes.md

@@ -1,335 +0,0 @@
-# Generic classes
-
-```toml
-[environment]
-python-version = "3.13"
-```
-
-## PEP 695 syntax
-
-TODO: Add a `red_knot_extension` function that asserts whether a function or class is generic.
-
-This is a generic class defined using PEP 695 syntax:
-
-```py
-class C[T]: ...
-```
-
-A class that inherits from a generic class, and fills its type parameters with typevars, is generic:
-
-```py
-class D[U](C[U]): ...
-```
-
-A class that inherits from a generic class, but fills its type parameters with concrete types, is
-_not_ generic:
-
-```py
-class E(C[int]): ...
-```
-
-A class that inherits from a generic class, and doesn't fill its type parameters at all, implicitly
-uses the default value for the typevar. In this case, that default type is `Unknown`, so `F`
-inherits from `C[Unknown]` and is not itself generic.
-
-```py
-class F(C): ...
-```
-
-## Legacy syntax
-
-This is a generic class defined using the legacy syntax:
-
-```py
-from typing import Generic, TypeVar
-
-T = TypeVar("T")
-
-class C(Generic[T]): ...
-```
-
-A class that inherits from a generic class, and fills its type parameters with typevars, is generic.
-
-```py
-class D(C[T]): ...
-```
-
-(Examples `E` and `F` from above do not have analogues in the legacy syntax.)
-
-## Specializing generic classes explicitly
-
-The type parameter can be specified explicitly:
-
-```py
-class C[T]:
-    x: T
-
-reveal_type(C[int]())  # revealed: C[int]
-```
-
-The specialization must match the generic types:
-
-```py
-# error: [too-many-positional-arguments] "Too many positional arguments to class `C`: expected 1, got 2"
-reveal_type(C[int, int]())  # revealed: Unknown
-```
-
-If the type variable has an upper bound, the specialized type must satisfy that bound:
-
-```py
-class Bounded[T: int]: ...
-class BoundedByUnion[T: int | str]: ...
-class IntSubclass(int): ...
-
-reveal_type(Bounded[int]())  # revealed: Bounded[int]
-reveal_type(Bounded[IntSubclass]())  # revealed: Bounded[IntSubclass]
-
-# error: [invalid-argument-type] "Argument to this function is incorrect: Expected `int`, found `str`"
-reveal_type(Bounded[str]())  # revealed: Unknown
-
-# error:  [invalid-argument-type] "Argument to this function is incorrect: Expected `int`, found `int | str`"
-reveal_type(Bounded[int | str]())  # revealed: Unknown
-
-reveal_type(BoundedByUnion[int]())  # revealed: BoundedByUnion[int]
-reveal_type(BoundedByUnion[IntSubclass]())  # revealed: BoundedByUnion[IntSubclass]
-reveal_type(BoundedByUnion[str]())  # revealed: BoundedByUnion[str]
-reveal_type(BoundedByUnion[int | str]())  # revealed: BoundedByUnion[int | str]
-```
-
-If the type variable is constrained, the specialized type must satisfy those constraints:
-
-```py
-class Constrained[T: (int, str)]: ...
-
-reveal_type(Constrained[int]())  # revealed: Constrained[int]
-
-# TODO: error: [invalid-argument-type]
-# TODO: revealed: Constrained[Unknown]
-reveal_type(Constrained[IntSubclass]())  # revealed: Constrained[IntSubclass]
-
-reveal_type(Constrained[str]())  # revealed: Constrained[str]
-
-# TODO: error: [invalid-argument-type]
-# TODO: revealed: Unknown
-reveal_type(Constrained[int | str]())  # revealed: Constrained[int | str]
-
-# error: [invalid-argument-type] "Argument to this function is incorrect: Expected `int | str`, found `object`"
-reveal_type(Constrained[object]())  # revealed: Unknown
-```
-
-## Inferring generic class parameters
-
-We can infer the type parameter from a type context:
-
-```py
-class C[T]:
-    x: T
-
-c: C[int] = C()
-# TODO: revealed: C[int]
-reveal_type(c)  # revealed: C[Unknown]
-```
-
-The typevars of a fully specialized generic class should no longer be visible:
-
-```py
-# TODO: revealed: int
-reveal_type(c.x)  # revealed: Unknown
-```
-
-If the type parameter is not specified explicitly, and there are no constraints that let us infer a
-specific type, we infer the typevar's default type:
-
-```py
-class D[T = int]: ...
-
-reveal_type(D())  # revealed: D[int]
-```
-
-If a typevar does not provide a default, we use `Unknown`:
-
-```py
-reveal_type(C())  # revealed: C[Unknown]
-```
-
-## Inferring generic class parameters from constructors
-
-If the type of a constructor parameter is a class typevar, we can use that to infer the type
-parameter. The types inferred from a type context and from a constructor parameter must be
-consistent with each other.
-
-## `__new__` only
-
-```py
-class C[T]:
-    def __new__(cls, x: T) -> "C[T]":
-        return object.__new__(cls)
-
-reveal_type(C(1))  # revealed: C[Literal[1]]
-
-# error: [invalid-assignment] "Object of type `C[Literal["five"]]` is not assignable to `C[int]`"
-wrong_innards: C[int] = C("five")
-```
-
-## `__init__` only
-
-```py
-class C[T]:
-    def __init__(self, x: T) -> None: ...
-
-reveal_type(C(1))  # revealed: C[Literal[1]]
-
-# error: [invalid-assignment] "Object of type `C[Literal["five"]]` is not assignable to `C[int]`"
-wrong_innards: C[int] = C("five")
-```
-
-## Identical `__new__` and `__init__` signatures
-
-```py
-class C[T]:
-    def __new__(cls, x: T) -> "C[T]":
-        return object.__new__(cls)
-
-    def __init__(self, x: T) -> None: ...
-
-reveal_type(C(1))  # revealed: C[Literal[1]]
-
-# error: [invalid-assignment] "Object of type `C[Literal["five"]]` is not assignable to `C[int]`"
-wrong_innards: C[int] = C("five")
-```
-
-## Compatible `__new__` and `__init__` signatures
-
-```py
-class C[T]:
-    def __new__(cls, *args, **kwargs) -> "C[T]":
-        return object.__new__(cls)
-
-    def __init__(self, x: T) -> None: ...
-
-reveal_type(C(1))  # revealed: C[Literal[1]]
-
-# error: [invalid-assignment] "Object of type `C[Literal["five"]]` is not assignable to `C[int]`"
-wrong_innards: C[int] = C("five")
-
-class D[T]:
-    def __new__(cls, x: T) -> "D[T]":
-        return object.__new__(cls)
-
-    def __init__(self, *args, **kwargs) -> None: ...
-
-reveal_type(D(1))  # revealed: D[Literal[1]]
-
-# error: [invalid-assignment] "Object of type `D[Literal["five"]]` is not assignable to `D[int]`"
-wrong_innards: D[int] = D("five")
-```
-
-## `__init__` is itself generic
-
-TODO: These do not currently work yet, because we don't correctly model the nested generic contexts.
-
-```py
-class C[T]:
-    def __init__[S](self, x: T, y: S) -> None: ...
-
-# TODO: no error
-# TODO: revealed: C[Literal[1]]
-# error: [invalid-argument-type]
-reveal_type(C(1, 1))  # revealed: C[Unknown]
-# TODO: no error
-# TODO: revealed: C[Literal[1]]
-# error: [invalid-argument-type]
-reveal_type(C(1, "string"))  # revealed: C[Unknown]
-# TODO: no error
-# TODO: revealed: C[Literal[1]]
-# error: [invalid-argument-type]
-reveal_type(C(1, True))  # revealed: C[Unknown]
-
-# TODO: [invalid-assignment] "Object of type `C[Literal["five"]]` is not assignable to `C[int]`"
-# error: [invalid-argument-type] "Argument to this function is incorrect: Expected `S`, found `Literal[1]`"
-wrong_innards: C[int] = C("five", 1)
-```
-
-## Generic subclass
-
-When a generic subclass fills its superclass's type parameter with one of its own, the actual types
-propagate through:
-
-```py
-class Base[T]:
-    x: T | None = None
-
-class Sub[U](Base[U]): ...
-
-reveal_type(Base[int].x)  # revealed: int | None
-reveal_type(Sub[int].x)  # revealed: int | None
-```
-
-## Generic methods
-
-Generic classes can contain methods that are themselves generic. The generic methods can refer to
-the typevars of the enclosing generic class, and introduce new (distinct) typevars that are only in
-scope for the method.
-
-```py
-class C[T]:
-    def method[U](self, u: U) -> U:
-        return u
-    # error: [unresolved-reference]
-    def cannot_use_outside_of_method(self, u: U): ...
-
-    # TODO: error
-    def cannot_shadow_class_typevar[T](self, t: T): ...
-
-c: C[int] = C[int]()
-reveal_type(c.method("string"))  # revealed: Literal["string"]
-```
-
-## Cyclic class definition
-
-A class can use itself as the type parameter of one of its superclasses. (This is also known as the
-[curiously recurring template pattern][crtp] or [F-bounded quantification][f-bound].)
-
-Here, `Sub` is not a generic class, since it fills its superclass's type parameter (with itself).
-
-`stub.pyi`:
-
-```pyi
-class Base[T]: ...
-class Sub(Base[Sub]): ...
-
-reveal_type(Sub)  # revealed: Literal[Sub]
-```
-
-A similar case can work in a non-stub file, if forward references are stringified:
-
-`string_annotation.py`:
-
-```py
-class Base[T]: ...
-class Sub(Base["Sub"]): ...
-
-reveal_type(Sub)  # revealed: Literal[Sub]
-```
-
-In a non-stub file, without stringified forward references, this raises a `NameError`:
-
-`bare_annotation.py`:
-
-```py
-class Base[T]: ...
-
-# error: [unresolved-reference]
-class Sub(Base[Sub]): ...
-```
-
-## Another cyclic case
-
-```pyi
-# TODO no error (generics)
-# error: [invalid-base]
-class Derived[T](list[Derived[T]]): ...
-```
-
-[crtp]: https://en.wikipedia.org/wiki/Curiously_recurring_template_pattern
-[f-bound]: https://en.wikipedia.org/wiki/Bounded_quantification#F-bounded_quantification

crates/red_knot_python_semantic/resources/mdtest/generics/legacy.md

@@ -1,72 +0,0 @@
-# Legacy type variables
-
-The tests in this file focus on how type variables are defined using the legacy notation. Most
-_uses_ of type variables are tested in other files in this directory; we do not duplicate every test
-for both type variable syntaxes.
-
-Unless otherwise specified, all quotations come from the [Generics] section of the typing spec.
-
-## Type variables
-
-### Defining legacy type variables
-
-> Generics can be parameterized by using a factory available in `typing` called `TypeVar`.
-
-This was the only way to create type variables prior to PEP 695/Python 3.12. It is still available
-in newer Python releases.
-
-```py
-from typing import TypeVar
-
-T = TypeVar("T")
-```
-
-### Directly assigned to a variable
-
-> A `TypeVar()` expression must always directly be assigned to a variable (it should not be used as
-> part of a larger expression).
-
-```py
-from typing import TypeVar
-
-# TODO: error
-TestList = list[TypeVar("W")]
-```
-
-### `TypeVar` parameter must match variable name
-
-> The argument to `TypeVar()` must be a string equal to the variable name to which it is assigned.
-
-```py
-from typing import TypeVar
-
-# TODO: error
-T = TypeVar("Q")
-```
-
-### No redefinition
-
-> Type variables must not be redefined.
-
-```py
-from typing import TypeVar
-
-T = TypeVar("T")
-
-# TODO: error
-T = TypeVar("T")
-```
-
-### Cannot have only one constraint
-
-> `TypeVar` supports constraining parametric types to a fixed set of possible types...There should
-> be at least two constraints, if any; specifying a single constraint is disallowed.
-
-```py
-from typing import TypeVar
-
-# TODO: error: [invalid-type-variable-constraints]
-T = TypeVar("T", int)
-```
-
-[generics]: https://typing.python.org/en/latest/spec/generics.html

crates/red_knot_python_semantic/resources/mdtest/literal/collections/dictionary.md

@@ -1,7 +0,0 @@
-# Dictionaries
-
-## Empty dictionary
-
-```py
-reveal_type({})  # revealed: dict
-```

crates/red_knot_python_semantic/resources/mdtest/literal/collections/list.md

@@ -1,7 +0,0 @@
-# Lists
-
-## Empty list
-
-```py
-reveal_type([])  # revealed: list
-```

crates/red_knot_python_semantic/resources/mdtest/literal/collections/set.md

@@ -1,7 +0,0 @@
-# Sets
-
-## Basic set
-
-```py
-reveal_type({1, 2})  # revealed: set
-```

crates/red_knot_python_semantic/resources/mdtest/mro.md

@@ -1,408 +0,0 @@
-# Method Resolution Order tests
-
-Tests that assert that we can infer the correct type for a class's `__mro__` attribute.
-
-This attribute is rarely accessed directly at runtime. However, it's extremely important for *us* to
-know the precise possible values of a class's Method Resolution Order, or we won't be able to infer
-the correct type of attributes accessed from instances.
-
-For documentation on method resolution orders, see:
-
-- <https://docs.python.org/3/glossary.html#term-method-resolution-order>
-- <https://docs.python.org/3/howto/mro.html#python-2-3-mro>
-
-## No bases
-
-```py
-class C: ...
-
-reveal_type(C.__mro__)  # revealed: tuple[Literal[C], Literal[object]]
-```
-
-## The special case: `object` itself
-
-```py
-reveal_type(object.__mro__)  # revealed: tuple[Literal[object]]
-```
-
-## Explicit inheritance from `object`
-
-```py
-class C(object): ...
-
-reveal_type(C.__mro__)  # revealed: tuple[Literal[C], Literal[object]]
-```
-
-## Explicit inheritance from non-`object` single base
-
-```py
-class A: ...
-class B(A): ...
-
-reveal_type(B.__mro__)  # revealed: tuple[Literal[B], Literal[A], Literal[object]]
-```
-
-## Linearization of multiple bases
-
-```py
-class A: ...
-class B: ...
-class C(A, B): ...
-
-reveal_type(C.__mro__)  # revealed: tuple[Literal[C], Literal[A], Literal[B], Literal[object]]
-```
-
-## Complex diamond inheritance (1)
-
-This is "ex_2" from <https://docs.python.org/3/howto/mro.html#the-end>
-
-```py
-class O: ...
-class X(O): ...
-class Y(O): ...
-class A(X, Y): ...
-class B(Y, X): ...
-
-reveal_type(A.__mro__)  # revealed: tuple[Literal[A], Literal[X], Literal[Y], Literal[O], Literal[object]]
-reveal_type(B.__mro__)  # revealed: tuple[Literal[B], Literal[Y], Literal[X], Literal[O], Literal[object]]
-```
-
-## Complex diamond inheritance (2)
-
-This is "ex_5" from <https://docs.python.org/3/howto/mro.html#the-end>
-
-```py
-class O: ...
-class F(O): ...
-class E(O): ...
-class D(O): ...
-class C(D, F): ...
-class B(D, E): ...
-class A(B, C): ...
-
-# revealed: tuple[Literal[C], Literal[D], Literal[F], Literal[O], Literal[object]]
-reveal_type(C.__mro__)
-# revealed: tuple[Literal[B], Literal[D], Literal[E], Literal[O], Literal[object]]
-reveal_type(B.__mro__)
-# revealed: tuple[Literal[A], Literal[B], Literal[C], Literal[D], Literal[E], Literal[F], Literal[O], Literal[object]]
-reveal_type(A.__mro__)
-```
-
-## Complex diamond inheritance (3)
-
-This is "ex_6" from <https://docs.python.org/3/howto/mro.html#the-end>
-
-```py
-class O: ...
-class F(O): ...
-class E(O): ...
-class D(O): ...
-class C(D, F): ...
-class B(E, D): ...
-class A(B, C): ...
-
-# revealed: tuple[Literal[C], Literal[D], Literal[F], Literal[O], Literal[object]]
-reveal_type(C.__mro__)
-# revealed: tuple[Literal[B], Literal[E], Literal[D], Literal[O], Literal[object]]
-reveal_type(B.__mro__)
-# revealed: tuple[Literal[A], Literal[B], Literal[E], Literal[C], Literal[D], Literal[F], Literal[O], Literal[object]]
-reveal_type(A.__mro__)
-```
-
-## Complex diamond inheritance (4)
-
-This is "ex_9" from <https://docs.python.org/3/howto/mro.html#the-end>
-
-```py
-class O: ...
-class A(O): ...
-class B(O): ...
-class C(O): ...
-class D(O): ...
-class E(O): ...
-class K1(A, B, C): ...
-class K2(D, B, E): ...
-class K3(D, A): ...
-class Z(K1, K2, K3): ...
-
-# revealed: tuple[Literal[K1], Literal[A], Literal[B], Literal[C], Literal[O], Literal[object]]
-reveal_type(K1.__mro__)
-# revealed: tuple[Literal[K2], Literal[D], Literal[B], Literal[E], Literal[O], Literal[object]]
-reveal_type(K2.__mro__)
-# revealed: tuple[Literal[K3], Literal[D], Literal[A], Literal[O], Literal[object]]
-reveal_type(K3.__mro__)
-# revealed: tuple[Literal[Z], Literal[K1], Literal[K2], Literal[K3], Literal[D], Literal[A], Literal[B], Literal[C], Literal[E], Literal[O], Literal[object]]
-reveal_type(Z.__mro__)
-```
-
-## Inheritance from `Unknown`
-
-```py
-from does_not_exist import DoesNotExist  # error: [unresolved-import]
-
-class A(DoesNotExist): ...
-class B: ...
-class C: ...
-class D(A, B, C): ...
-class E(B, C): ...
-class F(E, A): ...
-
-reveal_type(A.__mro__)  # revealed: tuple[Literal[A], Unknown, Literal[object]]
-reveal_type(D.__mro__)  # revealed: tuple[Literal[D], Literal[A], Unknown, Literal[B], Literal[C], Literal[object]]
-reveal_type(E.__mro__)  # revealed: tuple[Literal[E], Literal[B], Literal[C], Literal[object]]
-reveal_type(F.__mro__)  # revealed: tuple[Literal[F], Literal[E], Literal[B], Literal[C], Literal[A], Unknown, Literal[object]]
-```
-
-## `__bases__` lists that cause errors at runtime
-
-If the class's `__bases__` cause an exception to be raised at runtime and therefore the class
-creation to fail, we infer the class's `__mro__` as being `[<class>, Unknown, object]`:
-
-```py
-# error: [inconsistent-mro] "Cannot create a consistent method resolution order (MRO) for class `Foo` with bases list `[<class 'object'>, <class 'int'>]`"
-class Foo(object, int): ...
-
-reveal_type(Foo.__mro__)  # revealed: tuple[Literal[Foo], Unknown, Literal[object]]
-
-class Bar(Foo): ...
-
-reveal_type(Bar.__mro__)  # revealed: tuple[Literal[Bar], Literal[Foo], Unknown, Literal[object]]
-
-# This is the `TypeError` at the bottom of "ex_2"
-# in the examples at <https://docs.python.org/3/howto/mro.html#the-end>
-class O: ...
-class X(O): ...
-class Y(O): ...
-class A(X, Y): ...
-class B(Y, X): ...
-
-reveal_type(A.__mro__)  # revealed: tuple[Literal[A], Literal[X], Literal[Y], Literal[O], Literal[object]]
-reveal_type(B.__mro__)  # revealed: tuple[Literal[B], Literal[Y], Literal[X], Literal[O], Literal[object]]
-
-# error: [inconsistent-mro] "Cannot create a consistent method resolution order (MRO) for class `Z` with bases list `[<class 'A'>, <class 'B'>]`"
-class Z(A, B): ...
-
-reveal_type(Z.__mro__)  # revealed: tuple[Literal[Z], Unknown, Literal[object]]
-
-class AA(Z): ...
-
-reveal_type(AA.__mro__)  # revealed: tuple[Literal[AA], Literal[Z], Unknown, Literal[object]]
-```
-
-## `__bases__` includes a `Union`
-
-We don't support union types in a class's bases; a base must resolve to a single `ClassLiteralType`.
-If we find a union type in a class's bases, we infer the class's `__mro__` as being
-`[<class>, Unknown, object]`, the same as for MROs that cause errors at runtime.
-
-```py
-def returns_bool() -> bool:
-    return True
-
-class A: ...
-class B: ...
-
-if returns_bool():
-    x = A
-else:
-    x = B
-
-reveal_type(x)  # revealed: Literal[A, B]
-
-# error: 11 [invalid-base] "Invalid class base with type `Literal[A, B]` (all bases must be a class, `Any`, `Unknown` or `Todo`)"
-class Foo(x): ...
-
-reveal_type(Foo.__mro__)  # revealed: tuple[Literal[Foo], Unknown, Literal[object]]
-```
-
-## `__bases__` includes multiple `Union`s
-
-```py
-def returns_bool() -> bool:
-    return True
-
-class A: ...
-class B: ...
-class C: ...
-class D: ...
-
-if returns_bool():
-    x = A
-else:
-    x = B
-
-if returns_bool():
-    y = C
-else:
-    y = D
-
-reveal_type(x)  # revealed: Literal[A, B]
-reveal_type(y)  # revealed: Literal[C, D]
-
-# error: 11 [invalid-base] "Invalid class base with type `Literal[A, B]` (all bases must be a class, `Any`, `Unknown` or `Todo`)"
-# error: 14 [invalid-base] "Invalid class base with type `Literal[C, D]` (all bases must be a class, `Any`, `Unknown` or `Todo`)"
-class Foo(x, y): ...
-
-reveal_type(Foo.__mro__)  # revealed: tuple[Literal[Foo], Unknown, Literal[object]]
-```
-
-## `__bases__` lists that cause errors... now with `Union`s
-
-```py
-def returns_bool() -> bool:
-    return True
-
-class O: ...
-class X(O): ...
-class Y(O): ...
-
-if returns_bool():
-    foo = Y
-else:
-    foo = object
-
-# error: 21 [invalid-base] "Invalid class base with type `Literal[Y, object]` (all bases must be a class, `Any`, `Unknown` or `Todo`)"
-class PossibleError(foo, X): ...
-
-reveal_type(PossibleError.__mro__)  # revealed: tuple[Literal[PossibleError], Unknown, Literal[object]]
-
-class A(X, Y): ...
-
-reveal_type(A.__mro__)  # revealed: tuple[Literal[A], Literal[X], Literal[Y], Literal[O], Literal[object]]
-
-if returns_bool():
-    class B(X, Y): ...
-
-else:
-    class B(Y, X): ...
-
-# revealed: tuple[Literal[B], Literal[X], Literal[Y], Literal[O], Literal[object]] | tuple[Literal[B], Literal[Y], Literal[X], Literal[O], Literal[object]]
-reveal_type(B.__mro__)
-
-# error: 12 [invalid-base] "Invalid class base with type `Literal[B, B]` (all bases must be a class, `Any`, `Unknown` or `Todo`)"
-class Z(A, B): ...
-
-reveal_type(Z.__mro__)  # revealed: tuple[Literal[Z], Unknown, Literal[object]]
-```
-
-## `__bases__` lists with duplicate bases
-
-```py
-class Foo(str, str): ...  # error: 16 [duplicate-base] "Duplicate base class `str`"
-
-reveal_type(Foo.__mro__)  # revealed: tuple[Literal[Foo], Unknown, Literal[object]]
-
-class Spam: ...
-class Eggs: ...
-class Ham(
-    Spam,
-    Eggs,
-    Spam,  # error: [duplicate-base] "Duplicate base class `Spam`"
-    Eggs,  # error: [duplicate-base] "Duplicate base class `Eggs`"
-): ...
-
-reveal_type(Ham.__mro__)  # revealed: tuple[Literal[Ham], Unknown, Literal[object]]
-
-class Mushrooms: ...
-class Omelette(Spam, Eggs, Mushrooms, Mushrooms): ...  # error: [duplicate-base]
-
-reveal_type(Omelette.__mro__)  # revealed: tuple[Literal[Omelette], Unknown, Literal[object]]
-```
-
-## `__bases__` lists with duplicate `Unknown` bases
-
-```py
-# error: [unresolved-import]
-# error: [unresolved-import]
-from does_not_exist import unknown_object_1, unknown_object_2
-
-reveal_type(unknown_object_1)  # revealed: Unknown
-reveal_type(unknown_object_2)  # revealed: Unknown
-
-# We *should* emit an error here to warn the user that we have no idea
-# what the MRO of this class should really be.
-# However, we don't complain about "duplicate base classes" here,
-# even though two classes are both inferred as being `Unknown`.
-#
-# (TODO: should we revisit this? Does it violate the gradual guarantee?
-# Should we just silently infer `[Foo, Unknown, object]` as the MRO here
-# without emitting any error at all? Not sure...)
-#
-# error: [inconsistent-mro] "Cannot create a consistent method resolution order (MRO) for class `Foo` with bases list `[Unknown, Unknown]`"
-class Foo(unknown_object_1, unknown_object_2): ...
-
-reveal_type(Foo.__mro__)  # revealed: tuple[Literal[Foo], Unknown, Literal[object]]
-```
-
-## Unrelated objects inferred as `Any`/`Unknown` do not have special `__mro__` attributes
-
-```py
-from does_not_exist import unknown_object  # error: [unresolved-import]
-
-reveal_type(unknown_object)  # revealed: Unknown
-reveal_type(unknown_object.__mro__)  # revealed: Unknown
-```
-
-## Classes that inherit from themselves
-
-These are invalid, but we need to be able to handle them gracefully without panicking.
-
-```pyi
-class Foo(Foo): ...  # error: [cyclic-class-definition]
-
-reveal_type(Foo)  # revealed: Literal[Foo]
-reveal_type(Foo.__mro__)  # revealed: tuple[Literal[Foo], Unknown, Literal[object]]
-
-class Bar: ...
-class Baz: ...
-class Boz(Bar, Baz, Boz): ...  # error: [cyclic-class-definition]
-
-reveal_type(Boz)  # revealed: Literal[Boz]
-reveal_type(Boz.__mro__)  # revealed: tuple[Literal[Boz], Unknown, Literal[object]]
-```
-
-## Classes with indirect cycles in their MROs
-
-These are similarly unlikely, but we still shouldn't crash:
-
-```pyi
-class Foo(Bar): ...  # error: [cyclic-class-definition]
-class Bar(Baz): ...  # error: [cyclic-class-definition]
-class Baz(Foo): ...  # error: [cyclic-class-definition]
-
-reveal_type(Foo.__mro__)  # revealed: tuple[Literal[Foo], Unknown, Literal[object]]
-reveal_type(Bar.__mro__)  # revealed: tuple[Literal[Bar], Unknown, Literal[object]]
-reveal_type(Baz.__mro__)  # revealed: tuple[Literal[Baz], Unknown, Literal[object]]
-```
-
-## Classes with cycles in their MROs, and multiple inheritance
-
-```pyi
-class Spam: ...
-class Foo(Bar): ...  # error: [cyclic-class-definition]
-class Bar(Baz): ...  # error: [cyclic-class-definition]
-class Baz(Foo, Spam): ...  # error: [cyclic-class-definition]
-
-reveal_type(Foo.__mro__)  # revealed: tuple[Literal[Foo], Unknown, Literal[object]]
-reveal_type(Bar.__mro__)  # revealed: tuple[Literal[Bar], Unknown, Literal[object]]
-reveal_type(Baz.__mro__)  # revealed: tuple[Literal[Baz], Unknown, Literal[object]]
-```
-
-## Classes with cycles in their MRO, and a sub-graph
-
-```pyi
-class FooCycle(BarCycle): ...  # error: [cyclic-class-definition]
-class Foo: ...
-class BarCycle(FooCycle): ...  # error: [cyclic-class-definition]
-class Bar(Foo): ...
-
-# Avoid emitting the errors for these. The classes have cyclic superclasses,
-# but are not themselves cyclic...
-class Baz(Bar, BarCycle): ...
-class Spam(Baz): ...
-
-reveal_type(FooCycle.__mro__)  # revealed: tuple[Literal[FooCycle], Unknown, Literal[object]]
-reveal_type(BarCycle.__mro__)  # revealed: tuple[Literal[BarCycle], Unknown, Literal[object]]
-reveal_type(Baz.__mro__)  # revealed: tuple[Literal[Baz], Unknown, Literal[object]]
-reveal_type(Spam.__mro__)  # revealed: tuple[Literal[Spam], Unknown, Literal[object]]
-```

crates/red_knot_python_semantic/resources/mdtest/narrow/assert.md

@@ -1,53 +0,0 @@
-# Narrowing with assert statements
-
-## `assert` a value `is None` or `is not None`
-
-```py
-def _(x: str | None, y: str | None):
-    assert x is not None
-    reveal_type(x)  # revealed: str
-    assert y is None
-    reveal_type(y)  # revealed: None
-```
-
-## `assert` a value is truthy or falsy
-
-```py
-def _(x: bool, y: bool):
-    assert x
-    reveal_type(x)  # revealed: Literal[True]
-    assert not y
-    reveal_type(y)  # revealed: Literal[False]
-```
-
-## `assert` with `is` and `==` for literals
-
-```py
-from typing import Literal
-
-def _(x: Literal[1, 2, 3], y: Literal[1, 2, 3]):
-    assert x is 2
-    reveal_type(x)  # revealed: Literal[2]
-    assert y == 2
-    reveal_type(y)  # revealed: Literal[1, 2, 3]
-```
-
-## `assert` with `isinstance`
-
-```py
-def _(x: int | str):
-    assert isinstance(x, int)
-    reveal_type(x)  # revealed: int
-```
-
-## `assert` a value `in` a tuple
-
-```py
-from typing import Literal
-
-def _(x: Literal[1, 2, 3], y: Literal[1, 2, 3]):
-    assert x in (1, 2)
-    reveal_type(x)  # revealed: Literal[1, 2]
-    assert y not in (1, 2)
-    reveal_type(y)  # revealed: Literal[3]
-```

crates/red_knot_python_semantic/resources/mdtest/narrow/conditionals/nested.md

@@ -1,47 +0,0 @@
-# Narrowing for nested conditionals
-
-## Multiple negative contributions
-
-```py
-def _(x: int):
-    if x != 1:
-        if x != 2:
-            if x != 3:
-                reveal_type(x)  # revealed: int & ~Literal[1] & ~Literal[2] & ~Literal[3]
-```
-
-## Multiple negative contributions with simplification
-
-```py
-def _(flag1: bool, flag2: bool):
-    x = 1 if flag1 else 2 if flag2 else 3
-
-    if x != 1:
-        reveal_type(x)  # revealed: Literal[2, 3]
-        if x != 2:
-            reveal_type(x)  # revealed: Literal[3]
-```
-
-## elif-else blocks
-
-```py
-def _(flag1: bool, flag2: bool):
-    x = 1 if flag1 else 2 if flag2 else 3
-
-    if x != 1:
-        reveal_type(x)  # revealed: Literal[2, 3]
-        if x == 2:
-            # TODO should be `Literal[2]`
-            reveal_type(x)  # revealed: Literal[2, 3]
-        elif x == 3:
-            reveal_type(x)  # revealed: Literal[3]
-        else:
-            reveal_type(x)  # revealed: Never
-
-    elif x != 2:
-        # TODO should be Literal[1]
-        reveal_type(x)  # revealed: Literal[1, 3]
-    else:
-        # TODO should be Never
-        reveal_type(x)  # revealed: Literal[1, 2, 3]
-```

crates/red_knot_python_semantic/resources/mdtest/snapshots/basic.md_-_Structures_-_Unresolvable_module_import.snap

@@ -1,28 +0,0 @@
----
-source: crates/red_knot_test/src/lib.rs
-expression: snapshot
----
----
-mdtest name: basic.md - Structures - Unresolvable module import
-mdtest path: crates/red_knot_python_semantic/resources/mdtest/import/basic.md
----
-
-# Python source files
-
-## mdtest_snippet.py
-
-```
-1 | import zqzqzqzqzqzqzq  # error: [unresolved-import] "Cannot resolve import `zqzqzqzqzqzqzq`"
-```
-
-# Diagnostics
-
-```
-error: lint:unresolved-import
- --> /src/mdtest_snippet.py:1:8
-  |
-1 | import zqzqzqzqzqzqzq  # error: [unresolved-import] "Cannot resolve import `zqzqzqzqzqzqzq`"
-  |        ^^^^^^^^^^^^^^ Cannot resolve import `zqzqzqzqzqzqzq`
-  |
-
-```

crates/red_knot_python_semantic/resources/mdtest/snapshots/basic.md_-_Structures_-_Unresolvable_submodule_imports.snap

@@ -1,51 +0,0 @@
----
-source: crates/red_knot_test/src/lib.rs
-expression: snapshot
----
----
-mdtest name: basic.md - Structures - Unresolvable submodule imports
-mdtest path: crates/red_knot_python_semantic/resources/mdtest/import/basic.md
----
-
-# Python source files
-
-## mdtest_snippet.py
-
-```
-1 | # Topmost component resolvable, submodule not resolvable:
-2 | import a.foo  # error: [unresolved-import] "Cannot resolve import `a.foo`"
-3 | 
-4 | # Topmost component unresolvable:
-5 | import b.foo  # error: [unresolved-import] "Cannot resolve import `b.foo`"
-```
-
-## a/__init__.py
-
-```
-```
-
-# Diagnostics
-
-```
-error: lint:unresolved-import
- --> /src/mdtest_snippet.py:2:8
-  |
-1 | # Topmost component resolvable, submodule not resolvable:
-2 | import a.foo  # error: [unresolved-import] "Cannot resolve import `a.foo`"
-  |        ^^^^^ Cannot resolve import `a.foo`
-3 |
-4 | # Topmost component unresolvable:
-  |
-
-```
-
-```
-error: lint:unresolved-import
- --> /src/mdtest_snippet.py:5:8
-  |
-4 | # Topmost component unresolvable:
-5 | import b.foo  # error: [unresolved-import] "Cannot resolve import `b.foo`"
-  |        ^^^^^ Cannot resolve import `b.foo`
-  |
-
-```

crates/red_knot_python_semantic/resources/mdtest/snapshots/for.md_-_For_loops_-_Invalid_iterable.snap

@@ -1,32 +0,0 @@
----
-source: crates/red_knot_test/src/lib.rs
-expression: snapshot
----
----
-mdtest name: for.md - For loops - Invalid iterable
-mdtest path: crates/red_knot_python_semantic/resources/mdtest/loops/for.md
----
-
-# Python source files
-
-## mdtest_snippet.py
-
-```
-1 | nonsense = 123
-2 | for x in nonsense:  # error: [not-iterable]
-3 |     pass
-```
-
-# Diagnostics
-
-```
-error: lint:not-iterable
- --> /src/mdtest_snippet.py:2:10
-  |
-1 | nonsense = 123
-2 | for x in nonsense:  # error: [not-iterable]
-  |          ^^^^^^^^ Object of type `Literal[123]` is not iterable because it doesn't have an `__iter__` method or a `__getitem__` method
-3 |     pass
-  |
-
-```

crates/red_knot_python_semantic/resources/mdtest/snapshots/no_matching_overload.md_-_No_matching_overload_diagnostics_-_Calls_to_overloaded_functions.snap

@@ -1,28 +0,0 @@
----
-source: crates/red_knot_test/src/lib.rs
-expression: snapshot
----
----
-mdtest name: no_matching_overload.md - No matching overload diagnostics - Calls to overloaded functions
-mdtest path: crates/red_knot_python_semantic/resources/mdtest/diagnostics/no_matching_overload.md
----
-
-# Python source files
-
-## mdtest_snippet.py
-
-```
-1 | type("Foo", ())  # error: [no-matching-overload]
-```
-
-# Diagnostics
-
-```
-error: lint:no-matching-overload
- --> /src/mdtest_snippet.py:1:1
-  |
-1 | type("Foo", ())  # error: [no-matching-overload]
-  | ^^^^^^^^^^^^^^^ No overload of class `type` matches arguments
-  |
-
-```

crates/red_knot_python_semantic/resources/mdtest/snapshots/return_type.md_-_Function_return_type_-_Invalid_return_type.snap

@@ -1,81 +0,0 @@
----
-source: crates/red_knot_test/src/lib.rs
-expression: snapshot
----
----
-mdtest name: return_type.md - Function return type - Invalid return type
-mdtest path: crates/red_knot_python_semantic/resources/mdtest/function/return_type.md
----
-
-# Python source files
-
-## mdtest_snippet.py
-
-```
- 1 | # error: [invalid-return-type]
- 2 | def f() -> int:
- 3 |     1
- 4 | 
- 5 | def f() -> str:
- 6 |     # error: [invalid-return-type]
- 7 |     return 1
- 8 | 
- 9 | def f() -> int:
-10 |     # error: [invalid-return-type]
-11 |     return
-12 | 
-13 | from typing import TypeVar
-14 | 
-15 | T = TypeVar("T")
-16 | 
-17 | # TODO: `invalid-return-type` error should be emitted
-18 | def m(x: T) -> T: ...
-```
-
-# Diagnostics
-
-```
-error: lint:invalid-return-type
- --> /src/mdtest_snippet.py:2:12
-  |
-1 | # error: [invalid-return-type]
-2 | def f() -> int:
-  |            ^^^ Function can implicitly return `None`, which is not assignable to return type `int`
-3 |     1
-  |
-
-```
-
-```
-error: lint:invalid-return-type: Return type does not match returned value
- --> /src/mdtest_snippet.py:5:12
-  |
-3 |     1
-4 |
-5 | def f() -> str:
-  |            --- Expected `str` because of return type
-6 |     # error: [invalid-return-type]
-7 |     return 1
-  |            ^ Expected `str`, found `Literal[1]`
-8 |
-9 | def f() -> int:
-  |
-
-```
-
-```
-error: lint:invalid-return-type: Return type does not match returned value
-  --> /src/mdtest_snippet.py:9:12
-   |
- 7 |     return 1
- 8 |
- 9 | def f() -> int:
-   |            --- Expected `int` because of return type
-10 |     # error: [invalid-return-type]
-11 |     return
-   |     ^^^^^^ Expected `int`, found `None`
-12 |
-13 | from typing import TypeVar
-   |
-
-```

crates/red_knot_python_semantic/resources/mdtest/snapshots/return_type.md_-_Function_return_type_-_Invalid_return_type_in_stub_file.snap

@@ -1,71 +0,0 @@
----
-source: crates/red_knot_test/src/lib.rs
-expression: snapshot
----
----
-mdtest name: return_type.md - Function return type - Invalid return type in stub file
-mdtest path: crates/red_knot_python_semantic/resources/mdtest/function/return_type.md
----
-
-# Python source files
-
-## mdtest_snippet.pyi
-
-```
- 1 | def f() -> int:
- 2 |     # error: [invalid-return-type]
- 3 |     return ...
- 4 | 
- 5 | # error: [invalid-return-type]
- 6 | def foo() -> int:
- 7 |     print("...")
- 8 |     ...
- 9 | 
-10 | # error: [invalid-return-type]
-11 | def foo() -> int:
-12 |     f"""{foo} is a function that ..."""
-13 |     ...
-```
-
-# Diagnostics
-
-```
-error: lint:invalid-return-type: Return type does not match returned value
- --> /src/mdtest_snippet.pyi:1:12
-  |
-1 | def f() -> int:
-  |            --- Expected `int` because of return type
-2 |     # error: [invalid-return-type]
-3 |     return ...
-  |            ^^^ Expected `int`, found `ellipsis`
-4 |
-5 | # error: [invalid-return-type]
-  |
-
-```
-
-```
-error: lint:invalid-return-type
- --> /src/mdtest_snippet.pyi:6:14
-  |
-5 | # error: [invalid-return-type]
-6 | def foo() -> int:
-  |              ^^^ Function can implicitly return `None`, which is not assignable to return type `int`
-7 |     print("...")
-8 |     ...
-  |
-
-```
-
-```
-error: lint:invalid-return-type
-  --> /src/mdtest_snippet.pyi:11:14
-   |
-10 | # error: [invalid-return-type]
-11 | def foo() -> int:
-   |              ^^^ Function can implicitly return `None`, which is not assignable to return type `int`
-12 |     f"""{foo} is a function that ..."""
-13 |     ...
-   |
-
-```

crates/red_knot_python_semantic/resources/mdtest/snapshots/unpacking.md_-_Unpacking_-_Right_hand_side_not_iterable.snap

@@ -1,28 +0,0 @@
----
-source: crates/red_knot_test/src/lib.rs
-expression: snapshot
----
----
-mdtest name: unpacking.md - Unpacking - Right hand side not iterable
-mdtest path: crates/red_knot_python_semantic/resources/mdtest/diagnostics/unpacking.md
----
-
-# Python source files
-
-## mdtest_snippet.py
-
-```
-1 | a, b = 1  # error: [not-iterable]
-```
-
-# Diagnostics
-
-```
-error: lint:not-iterable
- --> /src/mdtest_snippet.py:1:8
-  |
-1 | a, b = 1  # error: [not-iterable]
-  |        ^ Object of type `Literal[1]` is not iterable because it doesn't have an `__iter__` method or a `__getitem__` method
-  |
-
-```

crates/red_knot_python_semantic/resources/mdtest/snapshots/unpacking.md_-_Unpacking_-_Too_few_values_to_unpack.snap

@@ -1,28 +0,0 @@
----
-source: crates/red_knot_test/src/lib.rs
-expression: snapshot
----
----
-mdtest name: unpacking.md - Unpacking - Too few values to unpack
-mdtest path: crates/red_knot_python_semantic/resources/mdtest/diagnostics/unpacking.md
----
-
-# Python source files
-
-## mdtest_snippet.py
-
-```
-1 | a, b = (1,)  # error: [invalid-assignment]
-```
-
-# Diagnostics
-
-```
-error: lint:invalid-assignment
- --> /src/mdtest_snippet.py:1:1
-  |
-1 | a, b = (1,)  # error: [invalid-assignment]
-  | ^^^^ Not enough values to unpack (expected 2, got 1)
-  |
-
-```

crates/red_knot_python_semantic/resources/mdtest/snapshots/unpacking.md_-_Unpacking_-_Too_many_values_to_unpack.snap

@@ -1,28 +0,0 @@
----
-source: crates/red_knot_test/src/lib.rs
-expression: snapshot
----
----
-mdtest name: unpacking.md - Unpacking - Too many values to unpack
-mdtest path: crates/red_knot_python_semantic/resources/mdtest/diagnostics/unpacking.md
----
-
-# Python source files
-
-## mdtest_snippet.py
-
-```
-1 | a, b = (1, 2, 3)  # error: [invalid-assignment]
-```
-
-# Diagnostics
-
-```
-error: lint:invalid-assignment
- --> /src/mdtest_snippet.py:1:1
-  |
-1 | a, b = (1, 2, 3)  # error: [invalid-assignment]
-  | ^^^^ Too many values to unpack (expected 2, got 3)
-  |
-
-```

crates/red_knot_python_semantic/resources/mdtest/snapshots/unresolved_import.md_-_Unresolved_import_diagnostics_-_An_unresolvable_import_that_does_not_use_`from`.snap

@@ -1,32 +0,0 @@
----
-source: crates/red_knot_test/src/lib.rs
-expression: snapshot
----
----
-mdtest name: unresolved_import.md - Unresolved import diagnostics - An unresolvable import that does not use `from`
-mdtest path: crates/red_knot_python_semantic/resources/mdtest/diagnostics/unresolved_import.md
----
-
-# Python source files
-
-## mdtest_snippet.py
-
-```
-1 | import does_not_exist  # error: [unresolved-import]
-2 | 
-3 | x = does_not_exist.foo
-```
-
-# Diagnostics
-
-```
-error: lint:unresolved-import
- --> /src/mdtest_snippet.py:1:8
-  |
-1 | import does_not_exist  # error: [unresolved-import]
-  |        ^^^^^^^^^^^^^^ Cannot resolve import `does_not_exist`
-2 |
-3 | x = does_not_exist.foo
-  |
-
-```

crates/red_knot_python_semantic/resources/mdtest/snapshots/unresolved_import.md_-_Unresolved_import_diagnostics_-_Using_`from`_with_an_unresolvable_module.snap

@@ -1,32 +0,0 @@
----
-source: crates/red_knot_test/src/lib.rs
-expression: snapshot
----
----
-mdtest name: unresolved_import.md - Unresolved import diagnostics - Using `from` with an unresolvable module
-mdtest path: crates/red_knot_python_semantic/resources/mdtest/diagnostics/unresolved_import.md
----
-
-# Python source files
-
-## mdtest_snippet.py
-
-```
-1 | from does_not_exist import add  # error: [unresolved-import]
-2 | 
-3 | stat = add(10, 15)
-```
-
-# Diagnostics
-
-```
-error: lint:unresolved-import
- --> /src/mdtest_snippet.py:1:6
-  |
-1 | from does_not_exist import add  # error: [unresolved-import]
-  |      ^^^^^^^^^^^^^^ Cannot resolve import `does_not_exist`
-2 |
-3 | stat = add(10, 15)
-  |
-
-```

crates/red_knot_python_semantic/resources/mdtest/suppressions/knot_ignore.md

@@ -1,191 +0,0 @@
-# Suppressing errors with `knot: ignore`
-
-Type check errors can be suppressed by a `knot: ignore` comment on the same line as the violation.
-
-## Simple `knot: ignore`
-
-```py
-a = 4 + test  # knot: ignore
-```
-
-## Suppressing a specific code
-
-```py
-a = 4 + test  # knot: ignore[unresolved-reference]
-```
-
-## Unused suppression
-
-```py
-test = 10
-# error: [unused-ignore-comment] "Unused `knot: ignore` directive: 'possibly-unresolved-reference'"
-a = test + 3  # knot: ignore[possibly-unresolved-reference]
-```
-
-## Unused suppression if the error codes don't match
-
-```py
-# error: [unresolved-reference]
-# error: [unused-ignore-comment] "Unused `knot: ignore` directive: 'possibly-unresolved-reference'"
-a = test + 3  # knot: ignore[possibly-unresolved-reference]
-```
-
-## Suppressed unused comment
-
-```py
-# error: [unused-ignore-comment]
-a = 10 / 2  # knot: ignore[division-by-zero]
-a = 10 / 2  # knot: ignore[division-by-zero, unused-ignore-comment]
-a = 10 / 2  # knot: ignore[unused-ignore-comment, division-by-zero]
-a = 10 / 2  # knot: ignore[unused-ignore-comment] # type: ignore
-a = 10 / 2  # type: ignore # knot: ignore[unused-ignore-comment]
-```
-
-## Unused ignore comment
-
-```py
-# error: [unused-ignore-comment] "Unused `knot: ignore` directive: 'unused-ignore-comment'"
-a = 10 / 0  # knot: ignore[division-by-zero, unused-ignore-comment]
-```
-
-## Multiple unused comments
-
-Today, Red Knot emits a diagnostic for every unused code. We might want to group the codes by
-comment at some point in the future.
-
-```py
-# error: [unused-ignore-comment] "Unused `knot: ignore` directive: 'division-by-zero'"
-# error: [unused-ignore-comment] "Unused `knot: ignore` directive: 'unresolved-reference'"
-a = 10 / 2  # knot: ignore[division-by-zero, unresolved-reference]
-
-# error: [unused-ignore-comment] "Unused `knot: ignore` directive: 'invalid-assignment'"
-# error: [unused-ignore-comment] "Unused `knot: ignore` directive: 'unresolved-reference'"
-a = 10 / 0  # knot: ignore[invalid-assignment, division-by-zero, unresolved-reference]
-```
-
-## Multiple suppressions
-
-```py
-# fmt: off
-def test(a: f"f-string type annotation", b: b"byte-string-type-annotation"): ...  # knot: ignore[fstring-type-annotation, byte-string-type-annotation]
-```
-
-## Can't suppress syntax errors
-
-<!-- blacken-docs:off -->
-
-```py
-# error: [invalid-syntax]
-# error: [unused-ignore-comment]
-def test($):  # knot: ignore
-    pass
-```
-
-<!-- blacken-docs:on -->
-
-## Can't suppress `revealed-type` diagnostics
-
-```py
-a = 10
-# revealed: Literal[10]
-# error: [unknown-rule] "Unknown rule `revealed-type`"
-reveal_type(a)  # knot: ignore[revealed-type]
-```
-
-## Extra whitespace in type ignore comments is allowed
-
-```py
-a = 10 / 0  # knot   :   ignore
-a = 10 / 0  # knot: ignore  [    division-by-zero   ]
-```
-
-## Whitespace is optional
-
-```py
-# fmt: off
-a = 10 / 0  #knot:ignore[division-by-zero]
-```
-
-## Trailing codes comma
-
-Trailing commas in the codes section are allowed:
-
-```py
-a = 10 / 0  # knot: ignore[division-by-zero,]
-```
-
-## Invalid characters in codes
-
-```py
-# error: [division-by-zero]
-# error: [invalid-ignore-comment] "Invalid `knot: ignore` comment: expected a alphanumeric character or `-` or `_` as code"
-a = 10 / 0  # knot: ignore[*-*]
-```
-
-## Trailing whitespace
-
-<!-- blacken-docs:off -->
-
-```py
-a = 10 / 0  # knot: ignore[division-by-zero]      
-            #                               ^^^^^^ trailing whitespace
-```
-
-<!-- blacken-docs:on -->
-
-## Missing comma
-
-A missing comma results in an invalid suppression comment. We may want to recover from this in the
-future.
-
-```py
-# error: [unresolved-reference]
-# error: [invalid-ignore-comment] "Invalid `knot: ignore` comment: expected a comma separating the rule codes"
-a = x / 0  # knot: ignore[division-by-zero unresolved-reference]
-```
-
-## Missing closing bracket
-
-```py
-# error: [unresolved-reference] "Name `x` used when not defined"
-# error: [invalid-ignore-comment] "Invalid `knot: ignore` comment: expected a comma separating the rule codes"
-a = x / 2  # knot: ignore[unresolved-reference
-```
-
-## Empty codes
-
-An empty codes array suppresses no-diagnostics and is always useless
-
-```py
-# error: [division-by-zero]
-# error: [unused-ignore-comment] "Unused `knot: ignore` without a code"
-a = 4 / 0  # knot: ignore[]
-```
-
-## File-level suppression comments
-
-File level suppression comments are currently intentionally unsupported because we've yet to decide
-if they should use a different syntax that also supports enabling rules or changing the rule's
-severity: `knot: possibly-undefined-reference=error`
-
-```py
-# error: [unused-ignore-comment]
-# knot: ignore[division-by-zero]
-
-a = 4 / 0  # error: [division-by-zero]
-```
-
-## Unknown rule
-
-```py
-# error: [unknown-rule] "Unknown rule `is-equal-14`"
-a = 10 + 4  # knot: ignore[is-equal-14]
-```
-
-## Code with `lint:` prefix
-
-```py
-# error:[unknown-rule] "Unknown rule `lint:division-by-zero`. Did you mean `division-by-zero`?"
-# error: [division-by-zero]
-a = 10 / 0  # knot: ignore[lint:division-by-zero]
-```

crates/red_knot_python_semantic/resources/mdtest/type_properties/is_assignable_to.md

@@ -1,556 +0,0 @@
-# Assignable-to relation
-
-The `is_assignable_to(S, T)` relation below checks if type `S` is assignable to type `T` (target).
-This allows us to check if a type `S` can be used in a context where a type `T` is expected
-(function arguments, variable assignments). See the [typing documentation] for a precise definition
-of this concept.
-
-## Basic types
-
-### Fully static
-
-Fully static types participate in subtyping. If a type `S` is a subtype of `T`, `S` will also be
-assignable to `T`. Two equivalent types are subtypes of each other:
-
-```py
-from knot_extensions import static_assert, is_assignable_to
-
-class Parent: ...
-class Child1(Parent): ...
-class Child2(Parent): ...
-class Grandchild(Child1, Child2): ...
-class Unrelated: ...
-
-static_assert(is_assignable_to(int, int))
-static_assert(is_assignable_to(Parent, Parent))
-static_assert(is_assignable_to(Child1, Parent))
-static_assert(is_assignable_to(Grandchild, Parent))
-static_assert(is_assignable_to(Unrelated, Unrelated))
-
-static_assert(not is_assignable_to(str, int))
-static_assert(not is_assignable_to(object, int))
-static_assert(not is_assignable_to(Parent, Child1))
-static_assert(not is_assignable_to(Unrelated, Parent))
-static_assert(not is_assignable_to(Child1, Child2))
-```
-
-### Gradual types
-
-Gradual types do not participate in subtyping, but can still be assignable to other types (and
-static types can be assignable to gradual types):
-
-```py
-from knot_extensions import static_assert, is_assignable_to, Unknown
-from typing import Any, Literal
-
-static_assert(is_assignable_to(Unknown, Literal[1]))
-static_assert(is_assignable_to(Any, Literal[1]))
-static_assert(is_assignable_to(Literal[1], Unknown))
-static_assert(is_assignable_to(Literal[1], Any))
-```
-
-## Literal types
-
-### Boolean literals
-
-`Literal[True]` and `Literal[False]` are both subtypes of (and therefore assignable to) `bool`,
-which is in turn a subtype of `int`:
-
-```py
-from knot_extensions import static_assert, is_assignable_to
-from typing import Literal
-
-static_assert(is_assignable_to(Literal[True], Literal[True]))
-static_assert(is_assignable_to(Literal[True], bool))
-static_assert(is_assignable_to(Literal[True], int))
-
-static_assert(not is_assignable_to(Literal[True], Literal[False]))
-static_assert(not is_assignable_to(bool, Literal[True]))
-```
-
-### Integer literals
-
-```py
-from knot_extensions import static_assert, is_assignable_to
-from typing import Literal
-
-static_assert(is_assignable_to(Literal[1], Literal[1]))
-static_assert(is_assignable_to(Literal[1], int))
-
-static_assert(not is_assignable_to(Literal[1], Literal[2]))
-static_assert(not is_assignable_to(int, Literal[1]))
-static_assert(not is_assignable_to(Literal[1], str))
-```
-
-### String literals and `LiteralString`
-
-All string-literal types are subtypes of (and therefore assignable to) `LiteralString`, which is in
-turn a subtype of `str`:
-
-```py
-from knot_extensions import static_assert, is_assignable_to
-from typing_extensions import Literal, LiteralString
-
-static_assert(is_assignable_to(Literal["foo"], Literal["foo"]))
-static_assert(is_assignable_to(Literal["foo"], LiteralString))
-static_assert(is_assignable_to(Literal["foo"], str))
-
-static_assert(is_assignable_to(LiteralString, str))
-
-static_assert(not is_assignable_to(Literal["foo"], Literal["bar"]))
-static_assert(not is_assignable_to(str, Literal["foo"]))
-static_assert(not is_assignable_to(str, LiteralString))
-```
-
-### Byte literals
-
-```py
-from knot_extensions import static_assert, is_assignable_to
-from typing_extensions import Literal, LiteralString
-
-static_assert(is_assignable_to(Literal[b"foo"], bytes))
-static_assert(is_assignable_to(Literal[b"foo"], Literal[b"foo"]))
-
-static_assert(not is_assignable_to(Literal[b"foo"], str))
-static_assert(not is_assignable_to(Literal[b"foo"], LiteralString))
-static_assert(not is_assignable_to(Literal[b"foo"], Literal[b"bar"]))
-static_assert(not is_assignable_to(Literal[b"foo"], Literal["foo"]))
-static_assert(not is_assignable_to(Literal["foo"], Literal[b"foo"]))
-```
-
-## `type[…]` and class literals
-
-In the following tests, `TypeOf[str]` is a singleton type with a single inhabitant, the class `str`.
-This contrasts with `type[str]`, which represents "all possible subclasses of `str`".
-
-Both `TypeOf[str]` and `type[str]` are subtypes of `type` and `type[object]`, which both represent
-"all possible instances of `type`"; therefore both `type[str]` and `TypeOf[str]` are assignable to
-`type`. `type[Any]`, on the other hand, represents a type of unknown size or inhabitants, but which
-is known to be no larger than the set of possible objects represented by `type`.
-
-```py
-from knot_extensions import static_assert, is_assignable_to, Unknown, TypeOf
-from typing import Any
-
-static_assert(is_assignable_to(type, type))
-static_assert(is_assignable_to(type[object], type[object]))
-
-static_assert(is_assignable_to(type, type[object]))
-static_assert(is_assignable_to(type[object], type))
-
-static_assert(is_assignable_to(type[str], type[object]))
-static_assert(is_assignable_to(TypeOf[str], type[object]))
-static_assert(is_assignable_to(type[str], type))
-static_assert(is_assignable_to(TypeOf[str], type))
-
-static_assert(is_assignable_to(type[str], type[str]))
-static_assert(is_assignable_to(TypeOf[str], type[str]))
-
-static_assert(not is_assignable_to(TypeOf[int], type[str]))
-static_assert(not is_assignable_to(type, type[str]))
-static_assert(not is_assignable_to(type[object], type[str]))
-
-static_assert(is_assignable_to(type[Any], type[Any]))
-static_assert(is_assignable_to(type[Any], type[object]))
-static_assert(is_assignable_to(type[object], type[Any]))
-static_assert(is_assignable_to(type, type[Any]))
-static_assert(is_assignable_to(type[Any], type[str]))
-static_assert(is_assignable_to(type[str], type[Any]))
-static_assert(is_assignable_to(TypeOf[str], type[Any]))
-
-static_assert(is_assignable_to(type[Unknown], type[Unknown]))
-static_assert(is_assignable_to(type[Unknown], type[object]))
-static_assert(is_assignable_to(type[object], type[Unknown]))
-static_assert(is_assignable_to(type, type[Unknown]))
-static_assert(is_assignable_to(type[Unknown], type[str]))
-static_assert(is_assignable_to(type[str], type[Unknown]))
-static_assert(is_assignable_to(TypeOf[str], type[Unknown]))
-
-static_assert(is_assignable_to(type[Unknown], type[Any]))
-static_assert(is_assignable_to(type[Any], type[Unknown]))
-
-static_assert(not is_assignable_to(object, type[Any]))
-static_assert(not is_assignable_to(str, type[Any]))
-
-class Meta(type): ...
-
-static_assert(is_assignable_to(type[Any], Meta))
-static_assert(is_assignable_to(type[Unknown], Meta))
-static_assert(is_assignable_to(Meta, type[Any]))
-static_assert(is_assignable_to(Meta, type[Unknown]))
-```
-
-## Tuple types
-
-```py
-from knot_extensions import static_assert, is_assignable_to, AlwaysTruthy, AlwaysFalsy
-from typing import Literal, Any
-
-static_assert(is_assignable_to(tuple[()], tuple[()]))
-static_assert(is_assignable_to(tuple[int], tuple[int]))
-static_assert(is_assignable_to(tuple[int], tuple[Any]))
-static_assert(is_assignable_to(tuple[Any], tuple[int]))
-static_assert(is_assignable_to(tuple[int, str], tuple[int, str]))
-static_assert(is_assignable_to(tuple[Literal[1], Literal[2]], tuple[int, int]))
-static_assert(is_assignable_to(tuple[Any, Literal[2]], tuple[int, int]))
-static_assert(is_assignable_to(tuple[Literal[1], Any], tuple[int, int]))
-static_assert(is_assignable_to(tuple[()], tuple))
-static_assert(is_assignable_to(tuple[int, str], tuple))
-static_assert(is_assignable_to(tuple[Any], tuple))
-
-# TODO: It is not yet clear if we want the following two assertions to hold.
-# See https://github.com/astral-sh/ruff/issues/15528 for more details. The
-# short version is: We either need to special-case enforcement of the Liskov
-# substitution principle on `__bool__` and `__len__` for tuple subclasses,
-# or we need to negate these assertions.
-static_assert(is_assignable_to(tuple[()], AlwaysFalsy))
-static_assert(is_assignable_to(tuple[int], AlwaysTruthy))
-
-static_assert(not is_assignable_to(tuple[()], tuple[int]))
-static_assert(not is_assignable_to(tuple[int], tuple[str]))
-static_assert(not is_assignable_to(tuple[int], tuple[int, str]))
-static_assert(not is_assignable_to(tuple[int, str], tuple[int]))
-static_assert(not is_assignable_to(tuple[int, int], tuple[Literal[1], int]))
-static_assert(not is_assignable_to(tuple[Any, Literal[2]], tuple[int, str]))
-```
-
-## Union types
-
-```py
-from knot_extensions import AlwaysTruthy, AlwaysFalsy, static_assert, is_assignable_to, Unknown
-from typing_extensions import Literal, Any, LiteralString
-
-static_assert(is_assignable_to(int, int | str))
-static_assert(is_assignable_to(str, int | str))
-static_assert(is_assignable_to(int | str, int | str))
-static_assert(is_assignable_to(str | int, int | str))
-static_assert(is_assignable_to(Literal[1], int | str))
-static_assert(is_assignable_to(Literal[1], Unknown | str))
-static_assert(is_assignable_to(Literal[1] | Literal[2], Literal[1] | Literal[2]))
-static_assert(is_assignable_to(Literal[1] | Literal[2], int))
-static_assert(is_assignable_to(Literal[1] | None, int | None))
-static_assert(is_assignable_to(Any, int | str))
-static_assert(is_assignable_to(Any | int, int))
-static_assert(is_assignable_to(str, int | Any))
-
-static_assert(not is_assignable_to(int | None, int))
-static_assert(not is_assignable_to(int | None, str | None))
-static_assert(not is_assignable_to(Literal[1] | None, int))
-static_assert(not is_assignable_to(Literal[1] | None, str | None))
-static_assert(not is_assignable_to(Any | int | str, int))
-
-# TODO: No errors
-# error: [static-assert-error]
-static_assert(is_assignable_to(bool, Literal[False] | AlwaysTruthy))
-# error: [static-assert-error]
-static_assert(is_assignable_to(bool, Literal[True] | AlwaysFalsy))
-# error: [static-assert-error]
-static_assert(is_assignable_to(LiteralString, Literal[""] | AlwaysTruthy))
-static_assert(not is_assignable_to(Literal[True] | AlwaysFalsy, Literal[False] | AlwaysTruthy))
-```
-
-## Intersection types
-
-```py
-from knot_extensions import static_assert, is_assignable_to, Intersection, Not, AlwaysTruthy, AlwaysFalsy
-from typing_extensions import Any, Literal, final, LiteralString
-
-class Parent: ...
-class Child1(Parent): ...
-class Child2(Parent): ...
-class Grandchild(Child1, Child2): ...
-class Unrelated: ...
-
-static_assert(is_assignable_to(Intersection[Child1, Child2], Child1))
-static_assert(is_assignable_to(Intersection[Child1, Child2], Child2))
-static_assert(is_assignable_to(Intersection[Child1, Child2], Parent))
-static_assert(is_assignable_to(Intersection[Child1, Parent], Parent))
-
-static_assert(is_assignable_to(Intersection[Parent, Unrelated], Parent))
-static_assert(is_assignable_to(Intersection[Child1, Unrelated], Child1))
-static_assert(is_assignable_to(Intersection[Child1, Unrelated, Child2], Intersection[Child1, Unrelated]))
-
-static_assert(is_assignable_to(Intersection[Child1, Not[Child2]], Child1))
-static_assert(is_assignable_to(Intersection[Child1, Not[Child2]], Parent))
-static_assert(is_assignable_to(Intersection[Child1, Not[Grandchild]], Parent))
-
-static_assert(is_assignable_to(Intersection[Child1, Child2], Intersection[Child1, Child2]))
-static_assert(is_assignable_to(Intersection[Child1, Child2], Intersection[Child2, Child1]))
-static_assert(is_assignable_to(Grandchild, Intersection[Child1, Child2]))
-static_assert(not is_assignable_to(Intersection[Child1, Child2], Intersection[Parent, Unrelated]))
-
-static_assert(not is_assignable_to(Parent, Intersection[Parent, Unrelated]))
-static_assert(not is_assignable_to(int, Intersection[int, Not[Literal[1]]]))
-# The literal `1` is not assignable to `Parent`, so the intersection of int and Parent is definitely an int that is not `1`
-static_assert(is_assignable_to(Intersection[int, Parent], Intersection[int, Not[Literal[1]]]))
-static_assert(not is_assignable_to(int, Not[int]))
-static_assert(not is_assignable_to(int, Not[Literal[1]]))
-
-static_assert(is_assignable_to(Not[Parent], Not[Child1]))
-static_assert(not is_assignable_to(Not[Parent], Parent))
-static_assert(not is_assignable_to(Intersection[Unrelated, Not[Parent]], Parent))
-
-# Intersection with `Any` dominates the left hand side of intersections
-static_assert(is_assignable_to(Intersection[Any, Parent], Parent))
-static_assert(is_assignable_to(Intersection[Any, Child1], Parent))
-static_assert(is_assignable_to(Intersection[Any, Child2, Not[Child1]], Parent))
-static_assert(is_assignable_to(Intersection[Any, Parent], Unrelated))
-static_assert(is_assignable_to(Intersection[Any, Parent], Intersection[Parent, Unrelated]))
-static_assert(is_assignable_to(Intersection[Any, Parent, Unrelated], Parent))
-static_assert(is_assignable_to(Intersection[Any, Parent, Unrelated], Intersection[Parent, Unrelated]))
-
-# Even Any & Not[Parent] is assignable to Parent, since it could be Never
-static_assert(is_assignable_to(Intersection[Any, Not[Parent]], Parent))
-static_assert(is_assignable_to(Intersection[Any, Not[Parent]], Not[Parent]))
-
-# Intersection with `Any` is effectively ignored on the right hand side for the sake of assignment
-static_assert(is_assignable_to(Parent, Intersection[Any, Parent]))
-static_assert(is_assignable_to(Parent, Parent | Intersection[Any, Unrelated]))
-static_assert(is_assignable_to(Child1, Intersection[Any, Parent]))
-static_assert(not is_assignable_to(Literal[1], Intersection[Any, Parent]))
-static_assert(not is_assignable_to(Unrelated, Intersection[Any, Parent]))
-
-# Intersections with Any on both sides combine the above logic - the LHS dominates and Any is ignored on the right hand side
-static_assert(is_assignable_to(Intersection[Any, Parent], Intersection[Any, Parent]))
-static_assert(is_assignable_to(Intersection[Any, Unrelated], Intersection[Any, Parent]))
-static_assert(is_assignable_to(Intersection[Any, Parent, Unrelated], Intersection[Any, Parent, Unrelated]))
-static_assert(is_assignable_to(Intersection[Unrelated, Any], Intersection[Unrelated, Not[Any]]))
-static_assert(is_assignable_to(Intersection[Literal[1], Any], Intersection[Unrelated, Not[Any]]))
-
-# TODO: No errors
-# The condition `is_assignable_to(T & U, U)` should still be satisfied after the following transformations:
-# `LiteralString & AlwaysTruthy` -> `LiteralString & ~Literal[""]`
-# error: [static-assert-error]
-static_assert(is_assignable_to(Intersection[LiteralString, Not[Literal[""]]], AlwaysTruthy))
-# error: [static-assert-error]
-static_assert(is_assignable_to(Intersection[LiteralString, Not[Literal["", "a"]]], AlwaysTruthy))
-# `LiteralString & ~AlwaysFalsy`  -> `LiteralString & ~Literal[""]`
-# error: [static-assert-error]
-static_assert(is_assignable_to(Intersection[LiteralString, Not[Literal[""]]], Not[AlwaysFalsy]))
-# error: [static-assert-error]
-static_assert(is_assignable_to(Intersection[LiteralString, Not[Literal["", "a"]]], Not[AlwaysFalsy]))
-```
-
-## General properties
-
-See also: our property tests in `property_tests.rs`.
-
-### Everything is assignable to `object`
-
-`object` is Python's top type; the set of all possible objects at runtime:
-
-```py
-from knot_extensions import static_assert, is_assignable_to, Unknown
-from typing import Literal, Any
-
-static_assert(is_assignable_to(str, object))
-static_assert(is_assignable_to(Literal[1], object))
-static_assert(is_assignable_to(object, object))
-static_assert(is_assignable_to(type, object))
-static_assert(is_assignable_to(Any, object))
-static_assert(is_assignable_to(Unknown, object))
-static_assert(is_assignable_to(type[object], object))
-static_assert(is_assignable_to(type[str], object))
-static_assert(is_assignable_to(type[Any], object))
-```
-
-### Every type is assignable to `Any` / `Unknown`
-
-`Any` and `Unknown` are gradual types. They could materialize to any given type at runtime, and so
-any type is assignable to them:
-
-```py
-from knot_extensions import static_assert, is_assignable_to, Unknown
-from typing import Literal, Any
-
-static_assert(is_assignable_to(str, Any))
-static_assert(is_assignable_to(Literal[1], Any))
-static_assert(is_assignable_to(object, Any))
-static_assert(is_assignable_to(type, Any))
-static_assert(is_assignable_to(Any, Any))
-static_assert(is_assignable_to(Unknown, Any))
-static_assert(is_assignable_to(type[object], Any))
-static_assert(is_assignable_to(type[str], Any))
-static_assert(is_assignable_to(type[Any], Any))
-
-static_assert(is_assignable_to(str, Unknown))
-static_assert(is_assignable_to(Literal[1], Unknown))
-static_assert(is_assignable_to(object, Unknown))
-static_assert(is_assignable_to(type, Unknown))
-static_assert(is_assignable_to(Any, Unknown))
-static_assert(is_assignable_to(Unknown, Unknown))
-static_assert(is_assignable_to(type[object], Unknown))
-static_assert(is_assignable_to(type[str], Unknown))
-static_assert(is_assignable_to(type[Any], Unknown))
-```
-
-### `Never` is assignable to every type
-
-`Never` is Python's bottom type: the empty set, a type with no inhabitants. It is therefore
-assignable to any arbitrary type.
-
-```py
-from knot_extensions import static_assert, is_assignable_to, Unknown
-from typing_extensions import Never, Any, Literal
-
-static_assert(is_assignable_to(Never, str))
-static_assert(is_assignable_to(Never, Literal[1]))
-static_assert(is_assignable_to(Never, object))
-static_assert(is_assignable_to(Never, type))
-static_assert(is_assignable_to(Never, Any))
-static_assert(is_assignable_to(Never, Unknown))
-static_assert(is_assignable_to(Never, type[object]))
-static_assert(is_assignable_to(Never, type[str]))
-static_assert(is_assignable_to(Never, type[Any]))
-```
-
-## Callable
-
-The examples provided below are only a subset of the possible cases and include the ones with
-gradual types. The cases with fully static types and using different combinations of parameter kinds
-are covered in the [subtyping tests](./is_subtype_of.md#callable).
-
-### Return type
-
-```py
-from knot_extensions import CallableTypeOf, Unknown, static_assert, is_assignable_to
-from typing import Any, Callable
-
-static_assert(is_assignable_to(Callable[[], Any], Callable[[], int]))
-static_assert(is_assignable_to(Callable[[], int], Callable[[], Any]))
-
-static_assert(is_assignable_to(Callable[[], int], Callable[[], float]))
-static_assert(not is_assignable_to(Callable[[], float], Callable[[], int]))
-```
-
-The return types should be checked even if the parameter types uses gradual form (`...`).
-
-```py
-static_assert(is_assignable_to(Callable[..., int], Callable[..., float]))
-static_assert(not is_assignable_to(Callable[..., float], Callable[..., int]))
-```
-
-And, if there is no return type, the return type is `Unknown`.
-
-```py
-static_assert(is_assignable_to(Callable[[], Unknown], Callable[[], int]))
-static_assert(is_assignable_to(Callable[[], int], Callable[[], Unknown]))
-```
-
-### Parameter types
-
-A `Callable` which uses the gradual form (`...`) for the parameter types is consistent with any
-input signature.
-
-```py
-from knot_extensions import CallableTypeOf, static_assert, is_assignable_to
-from typing import Any, Callable
-
-static_assert(is_assignable_to(Callable[[], None], Callable[..., None]))
-static_assert(is_assignable_to(Callable[..., None], Callable[..., None]))
-static_assert(is_assignable_to(Callable[[int, float, str], None], Callable[..., None]))
-```
-
-Even if it includes any other parameter kinds.
-
-```py
-def positional_only(a: int, b: int, /) -> None: ...
-def positional_or_keyword(a: int, b: int) -> None: ...
-def variadic(*args: int) -> None: ...
-def keyword_only(*, a: int, b: int) -> None: ...
-def keyword_variadic(**kwargs: int) -> None: ...
-def mixed(a: int, /, b: int, *args: int, c: int, **kwargs: int) -> None: ...
-
-static_assert(is_assignable_to(CallableTypeOf[positional_only], Callable[..., None]))
-static_assert(is_assignable_to(CallableTypeOf[positional_or_keyword], Callable[..., None]))
-static_assert(is_assignable_to(CallableTypeOf[variadic], Callable[..., None]))
-static_assert(is_assignable_to(CallableTypeOf[keyword_only], Callable[..., None]))
-static_assert(is_assignable_to(CallableTypeOf[keyword_variadic], Callable[..., None]))
-static_assert(is_assignable_to(CallableTypeOf[mixed], Callable[..., None]))
-```
-
-And, even if the parameters are unannotated.
-
-```py
-def positional_only(a, b, /) -> None: ...
-def positional_or_keyword(a, b) -> None: ...
-def variadic(*args) -> None: ...
-def keyword_only(*, a, b) -> None: ...
-def keyword_variadic(**kwargs) -> None: ...
-def mixed(a, /, b, *args, c, **kwargs) -> None: ...
-
-static_assert(is_assignable_to(CallableTypeOf[positional_only], Callable[..., None]))
-static_assert(is_assignable_to(CallableTypeOf[positional_or_keyword], Callable[..., None]))
-static_assert(is_assignable_to(CallableTypeOf[variadic], Callable[..., None]))
-static_assert(is_assignable_to(CallableTypeOf[keyword_only], Callable[..., None]))
-static_assert(is_assignable_to(CallableTypeOf[keyword_variadic], Callable[..., None]))
-static_assert(is_assignable_to(CallableTypeOf[mixed], Callable[..., None]))
-```
-
-### Function types
-
-```py
-from typing import Any, Callable
-
-def f(x: Any) -> str:
-    return ""
-
-def g(x: Any) -> int:
-    return 1
-
-c: Callable[[Any], str] = f
-
-# error: [invalid-assignment] "Object of type `def g(x: Any) -> int` is not assignable to `(Any, /) -> str`"
-c: Callable[[Any], str] = g
-```
-
-### Method types
-
-```py
-from typing import Any, Callable
-
-class A:
-    def f(self, x: Any) -> str:
-        return ""
-
-    def g(self, x: Any) -> int:
-        return 1
-
-c: Callable[[Any], str] = A().f
-
-# error: [invalid-assignment] "Object of type `bound method A.g(x: Any) -> int` is not assignable to `(Any, /) -> str`"
-c: Callable[[Any], str] = A().g
-```
-
-### Overloads
-
-`overloaded.pyi`:
-
-```pyi
-from typing import Any, overload
-
-@overload
-def overloaded() -> None: ...
-@overload
-def overloaded(a: str) -> str: ...
-@overload
-def overloaded(a: str, b: Any) -> str: ...
-```
-
-```py
-from overloaded import overloaded
-from typing import Any, Callable
-
-c: Callable[[], None] = overloaded
-c: Callable[[str], str] = overloaded
-c: Callable[[str, Any], Any] = overloaded
-c: Callable[..., str] = overloaded
-
-# error: [invalid-assignment]
-c: Callable[..., int] = overloaded
-
-# error: [invalid-assignment]
-c: Callable[[int], str] = overloaded
-```
-
-[typing documentation]: https://typing.python.org/en/latest/spec/concepts.html#the-assignable-to-or-consistent-subtyping-relation

crates/red_knot_python_semantic/resources/primer/good.txt

@@ -1,23 +0,0 @@
-arrow
-async-utils
-bidict
-black
-dacite
-git-revise
-isort
-itsdangerous
-mypy_primer
-packaging
-paroxython
-porcupine
-psycopg
-pybind11
-pyinstrument
-pyp
-python-chess
-python-htmlgen
-rich
-scrapy
-typeshed-stats
-werkzeug
-zipp

crates/red_knot_python_semantic/src/ast_node_ref.rs

@@ -1,202 +0,0 @@
-use std::hash::Hash;
-use std::ops::Deref;
-
-use ruff_db::parsed::ParsedModule;
-
-/// Ref-counted owned reference to an AST node.
-///
-/// The type holds an owned reference to the node's ref-counted [`ParsedModule`].
-/// Holding on to the node's [`ParsedModule`] guarantees that the reference to the
-/// node must still be valid.
-///
-/// Holding on to any [`AstNodeRef`] prevents the [`ParsedModule`] from being released.
-///
-/// ## Equality
-/// Two `AstNodeRef` are considered equal if their pointer addresses are equal.
-///
-/// ## Usage in salsa tracked structs
-/// It's important that [`AstNodeRef`] fields in salsa tracked structs are tracked fields
-/// (attributed with `#[tracked`]). It prevents that the tracked struct gets a new ID
-/// every time the AST changes, which in turn, invalidates the result of any query
-/// that takes said tracked struct as a query argument or returns the tracked struct as part of its result.
-///
-/// For example, marking the [`AstNodeRef`] as tracked on `Expression`
-/// has the effect that salsa will consider the expression as "unchanged" for as long as it:
-///
-/// * belongs to the same file
-/// * belongs to the same scope
-/// * has the same kind
-/// * was created in the same order
-///
-/// This means that changes to expressions in other scopes don't invalidate the expression's id, giving
-/// us some form of scope-stable identity for expressions. Only queries accessing the node field
-/// run on every AST change. All other queries only run when the expression's identity changes.
-#[derive(Clone)]
-pub struct AstNodeRef<T> {
-    /// Owned reference to the node's [`ParsedModule`].
-    ///
-    /// The node's reference is guaranteed to remain valid as long as it's enclosing
-    /// [`ParsedModule`] is alive.
-    parsed: ParsedModule,
-
-    /// Pointer to the referenced node.
-    node: std::ptr::NonNull<T>,
-}
-
-#[allow(unsafe_code)]
-impl<T> AstNodeRef<T> {
-    /// Creates a new `AstNodeRef` that references `node`. The `parsed` is the [`ParsedModule`] to
-    /// which the `AstNodeRef` belongs.
-    ///
-    /// ## Safety
-    ///
-    /// Dereferencing the `node` can result in undefined behavior if `parsed` isn't the
-    /// [`ParsedModule`] to which `node` belongs. It's the caller's responsibility to ensure that
-    /// the invariant `node belongs to parsed` is upheld.
-    pub(super) unsafe fn new(parsed: ParsedModule, node: &T) -> Self {
-        Self {
-            parsed,
-            node: std::ptr::NonNull::from(node),
-        }
-    }
-
-    /// Returns a reference to the wrapped node.
-    pub const fn node(&self) -> &T {
-        // SAFETY: Holding on to `parsed` ensures that the AST to which `node` belongs is still
-        // alive and not moved.
-        unsafe { self.node.as_ref() }
-    }
-}
-
-impl<T> Deref for AstNodeRef<T> {
-    type Target = T;
-
-    fn deref(&self) -> &Self::Target {
-        self.node()
-    }
-}
-
-impl<T> std::fmt::Debug for AstNodeRef<T>
-where
-    T: std::fmt::Debug,
-{
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.debug_tuple("AstNodeRef").field(&self.node()).finish()
-    }
-}
-
-impl<T> PartialEq for AstNodeRef<T>
-where
-    T: PartialEq,
-{
-    fn eq(&self, other: &Self) -> bool {
-        if self.parsed == other.parsed {
-            // Comparing the pointer addresses is sufficient to determine equality
-            // if the parsed are the same.
-            self.node.eq(&other.node)
-        } else {
-            // Otherwise perform a deep comparison.
-            self.node().eq(other.node())
-        }
-    }
-}
-
-impl<T> Eq for AstNodeRef<T> where T: Eq {}
-
-impl<T> Hash for AstNodeRef<T>
-where
-    T: Hash,
-{
-    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
-        self.node().hash(state);
-    }
-}
-
-#[allow(unsafe_code)]
-unsafe impl<T> salsa::Update for AstNodeRef<T> {
-    unsafe fn maybe_update(old_pointer: *mut Self, new_value: Self) -> bool {
-        let old_ref = &mut (*old_pointer);
-
-        if old_ref.parsed == new_value.parsed && old_ref.node.eq(&new_value.node) {
-            false
-        } else {
-            *old_ref = new_value;
-            true
-        }
-    }
-}
-
-#[allow(unsafe_code)]
-unsafe impl<T> Send for AstNodeRef<T> where T: Send {}
-#[allow(unsafe_code)]
-unsafe impl<T> Sync for AstNodeRef<T> where T: Sync {}
-
-#[cfg(test)]
-mod tests {
-    use crate::ast_node_ref::AstNodeRef;
-    use ruff_db::parsed::ParsedModule;
-    use ruff_python_ast::PySourceType;
-    use ruff_python_parser::parse_unchecked_source;
-
-    #[test]
-    #[allow(unsafe_code)]
-    fn equality() {
-        let parsed_raw = parse_unchecked_source("1 + 2", PySourceType::Python);
-        let parsed = ParsedModule::new(parsed_raw.clone());
-
-        let stmt = &parsed.syntax().body[0];
-
-        let node1 = unsafe { AstNodeRef::new(parsed.clone(), stmt) };
-        let node2 = unsafe { AstNodeRef::new(parsed.clone(), stmt) };
-
-        assert_eq!(node1, node2);
-
-        // Compare from different trees
-        let cloned = ParsedModule::new(parsed_raw);
-        let stmt_cloned = &cloned.syntax().body[0];
-        let cloned_node = unsafe { AstNodeRef::new(cloned.clone(), stmt_cloned) };
-
-        assert_eq!(node1, cloned_node);
-
-        let other_raw = parse_unchecked_source("2 + 2", PySourceType::Python);
-        let other = ParsedModule::new(other_raw);
-
-        let other_stmt = &other.syntax().body[0];
-        let other_node = unsafe { AstNodeRef::new(other.clone(), other_stmt) };
-
-        assert_ne!(node1, other_node);
-    }
-
-    #[allow(unsafe_code)]
-    #[test]
-    fn inequality() {
-        let parsed_raw = parse_unchecked_source("1 + 2", PySourceType::Python);
-        let parsed = ParsedModule::new(parsed_raw);
-
-        let stmt = &parsed.syntax().body[0];
-        let node = unsafe { AstNodeRef::new(parsed.clone(), stmt) };
-
-        let other_raw = parse_unchecked_source("2 + 2", PySourceType::Python);
-        let other = ParsedModule::new(other_raw);
-
-        let other_stmt = &other.syntax().body[0];
-        let other_node = unsafe { AstNodeRef::new(other.clone(), other_stmt) };
-
-        assert_ne!(node, other_node);
-    }
-
-    #[test]
-    #[allow(unsafe_code)]
-    fn debug() {
-        let parsed_raw = parse_unchecked_source("1 + 2", PySourceType::Python);
-        let parsed = ParsedModule::new(parsed_raw);
-
-        let stmt = &parsed.syntax().body[0];
-
-        let stmt_node = unsafe { AstNodeRef::new(parsed.clone(), stmt) };
-
-        let debug = format!("{stmt_node:?}");
-
-        assert_eq!(debug, format!("AstNodeRef({stmt:?})"));
-    }
-}

crates/red_knot_python_semantic/src/node_key.rs

@@ -1,21 +0,0 @@
-use ruff_python_ast::AnyNodeRef;
-
-/// Compact key for a node for use in a hash map.
-///
-/// Stores the memory address of the node, because using the range and the kind
-/// of the node is not enough to uniquely identify them in ASTs resulting from
-/// invalid syntax. For example, parsing the input `for` results in a `StmtFor`
-/// AST node where both the `target` and the `iter` field are `ExprName` nodes
-/// with the same (empty) range `3..3`.
-#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
-pub(super) struct NodeKey(usize);
-
-impl NodeKey {
-    pub(super) fn from_node<'a, N>(node: N) -> Self
-    where
-        N: Into<AnyNodeRef<'a>>,
-    {
-        let node = node.into();
-        NodeKey(node.as_ptr().as_ptr() as usize)
-    }
-}

crates/red_knot_python_semantic/src/program.rs

@@ -1,166 +0,0 @@
-use crate::module_resolver::SearchPaths;
-use crate::python_platform::PythonPlatform;
-use crate::site_packages::SysPrefixPathOrigin;
-use crate::Db;
-
-use anyhow::Context;
-use ruff_db::system::{SystemPath, SystemPathBuf};
-use ruff_python_ast::PythonVersion;
-use salsa::Durability;
-use salsa::Setter;
-
-#[salsa::input(singleton)]
-pub struct Program {
-    pub python_version: PythonVersion,
-
-    #[return_ref]
-    pub python_platform: PythonPlatform,
-
-    #[return_ref]
-    pub(crate) search_paths: SearchPaths,
-}
-
-impl Program {
-    pub fn from_settings(db: &dyn Db, settings: ProgramSettings) -> anyhow::Result<Self> {
-        let ProgramSettings {
-            python_version,
-            python_platform,
-            search_paths,
-        } = settings;
-
-        tracing::info!("Python version: Python {python_version}, platform: {python_platform}");
-
-        let search_paths = SearchPaths::from_settings(db, &search_paths)
-            .with_context(|| "Invalid search path settings")?;
-
-        Ok(
-            Program::builder(python_version, python_platform, search_paths)
-                .durability(Durability::HIGH)
-                .new(db),
-        )
-    }
-
-    pub fn update_from_settings(
-        self,
-        db: &mut dyn Db,
-        settings: ProgramSettings,
-    ) -> anyhow::Result<()> {
-        let ProgramSettings {
-            python_version,
-            python_platform,
-            search_paths,
-        } = settings;
-
-        if &python_platform != self.python_platform(db) {
-            tracing::debug!("Updating python platform: `{python_platform:?}`");
-            self.set_python_platform(db).to(python_platform);
-        }
-
-        if python_version != self.python_version(db) {
-            tracing::debug!("Updating python version: Python {python_version}");
-            self.set_python_version(db).to(python_version);
-        }
-
-        self.update_search_paths(db, &search_paths)?;
-
-        Ok(())
-    }
-
-    pub fn update_search_paths(
-        self,
-        db: &mut dyn Db,
-        search_path_settings: &SearchPathSettings,
-    ) -> anyhow::Result<()> {
-        let search_paths = SearchPaths::from_settings(db, search_path_settings)?;
-
-        if self.search_paths(db) != &search_paths {
-            tracing::debug!("Update search paths");
-            self.set_search_paths(db).to(search_paths);
-        }
-
-        Ok(())
-    }
-
-    pub fn custom_stdlib_search_path(self, db: &dyn Db) -> Option<&SystemPath> {
-        self.search_paths(db).custom_stdlib()
-    }
-}
-
-#[derive(Clone, Debug, Eq, PartialEq)]
-#[cfg_attr(feature = "serde", derive(serde::Serialize))]
-pub struct ProgramSettings {
-    pub python_version: PythonVersion,
-    pub python_platform: PythonPlatform,
-    pub search_paths: SearchPathSettings,
-}
-
-/// Configures the search paths for module resolution.
-#[derive(Eq, PartialEq, Debug, Clone)]
-#[cfg_attr(feature = "serde", derive(serde::Serialize))]
-pub struct SearchPathSettings {
-    /// List of user-provided paths that should take first priority in the module resolution.
-    /// Examples in other type checkers are mypy's MYPYPATH environment variable,
-    /// or pyright's stubPath configuration setting.
-    pub extra_paths: Vec<SystemPathBuf>,
-
-    /// The root of the project, used for finding first-party modules.
-    pub src_roots: Vec<SystemPathBuf>,
-
-    /// Optional path to a "custom typeshed" directory on disk for us to use for standard-library types.
-    /// If this is not provided, we will fallback to our vendored typeshed stubs for the stdlib,
-    /// bundled as a zip file in the binary
-    pub custom_typeshed: Option<SystemPathBuf>,
-
-    /// Path to the Python installation from which Red Knot resolves third party dependencies
-    /// and their type information.
-    pub python_path: PythonPath,
-}
-
-impl SearchPathSettings {
-    pub fn new(src_roots: Vec<SystemPathBuf>) -> Self {
-        Self {
-            src_roots,
-            extra_paths: vec![],
-            custom_typeshed: None,
-            python_path: PythonPath::KnownSitePackages(vec![]),
-        }
-    }
-}
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
-pub enum PythonPath {
-    /// A path that represents the value of [`sys.prefix`] at runtime in Python
-    /// for a given Python executable.
-    ///
-    /// For the case of a virtual environment, where a
-    /// Python binary is at `/.venv/bin/python`, `sys.prefix` is the path to
-    /// the virtual environment the Python binary lies inside, i.e. `/.venv`,
-    /// and `site-packages` will be at `.venv/lib/python3.X/site-packages`.
-    /// System Python installations generally work the same way: if a system
-    /// Python installation lies at `/opt/homebrew/bin/python`, `sys.prefix`
-    /// will be `/opt/homebrew`, and `site-packages` will be at
-    /// `/opt/homebrew/lib/python3.X/site-packages`.
-    ///
-    /// [`sys.prefix`]: https://docs.python.org/3/library/sys.html#sys.prefix
-    SysPrefix(SystemPathBuf, SysPrefixPathOrigin),
-
-    /// Tries to discover a virtual environment in the given path.
-    Discover(SystemPathBuf),
-
-    /// Resolved site packages paths.
-    ///
-    /// This variant is mainly intended for testing where we want to skip resolving `site-packages`
-    /// because it would unnecessarily complicate the test setup.
-    KnownSitePackages(Vec<SystemPathBuf>),
-}
-
-impl PythonPath {
-    pub fn from_virtual_env_var(path: impl Into<SystemPathBuf>) -> Self {
-        Self::SysPrefix(path.into(), SysPrefixPathOrigin::VirtualEnvVar)
-    }
-
-    pub fn from_cli_flag(path: SystemPathBuf) -> Self {
-        Self::SysPrefix(path, SysPrefixPathOrigin::PythonCliFlag)
-    }
-}

crates/red_knot_python_semantic/src/semantic_index/symbol.rs

@@ -1,576 +0,0 @@
-use std::hash::{Hash, Hasher};
-use std::ops::Range;
-
-use bitflags::bitflags;
-use hashbrown::hash_map::RawEntryMut;
-use ruff_db::files::File;
-use ruff_db::parsed::ParsedModule;
-use ruff_index::{newtype_index, IndexVec};
-use ruff_python_ast as ast;
-use ruff_python_ast::name::Name;
-use rustc_hash::FxHasher;
-
-use crate::ast_node_ref::AstNodeRef;
-use crate::node_key::NodeKey;
-use crate::semantic_index::visibility_constraints::ScopedVisibilityConstraintId;
-use crate::semantic_index::{semantic_index, SymbolMap};
-use crate::Db;
-
-#[derive(Eq, PartialEq, Debug)]
-pub struct Symbol {
-    name: Name,
-    flags: SymbolFlags,
-}
-
-impl Symbol {
-    fn new(name: Name) -> Self {
-        Self {
-            name,
-            flags: SymbolFlags::empty(),
-        }
-    }
-
-    fn insert_flags(&mut self, flags: SymbolFlags) {
-        self.flags.insert(flags);
-    }
-
-    /// The symbol's name.
-    pub fn name(&self) -> &Name {
-        &self.name
-    }
-
-    /// Is the symbol used in its containing scope?
-    pub fn is_used(&self) -> bool {
-        self.flags.contains(SymbolFlags::IS_USED)
-    }
-
-    /// Is the symbol defined in its containing scope?
-    pub fn is_bound(&self) -> bool {
-        self.flags.contains(SymbolFlags::IS_BOUND)
-    }
-
-    /// Is the symbol declared in its containing scope?
-    pub fn is_declared(&self) -> bool {
-        self.flags.contains(SymbolFlags::IS_DECLARED)
-    }
-}
-
-bitflags! {
-    /// Flags that can be queried to obtain information about a symbol in a given scope.
-    ///
-    /// See the doc-comment at the top of [`super::use_def`] for explanations of what it
-    /// means for a symbol to be *bound* as opposed to *declared*.
-    #[derive(Copy, Clone, Debug, Eq, PartialEq)]
-    struct SymbolFlags: u8 {
-        const IS_USED         = 1 << 0;
-        const IS_BOUND        = 1 << 1;
-        const IS_DECLARED     = 1 << 2;
-        /// TODO: This flag is not yet set by anything
-        const MARKED_GLOBAL   = 1 << 3;
-        /// TODO: This flag is not yet set by anything
-        const MARKED_NONLOCAL = 1 << 4;
-    }
-}
-
-/// ID that uniquely identifies a symbol in a file.
-#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
-pub struct FileSymbolId {
-    scope: FileScopeId,
-    scoped_symbol_id: ScopedSymbolId,
-}
-
-impl FileSymbolId {
-    pub fn scope(self) -> FileScopeId {
-        self.scope
-    }
-
-    pub(crate) fn scoped_symbol_id(self) -> ScopedSymbolId {
-        self.scoped_symbol_id
-    }
-}
-
-impl From<FileSymbolId> for ScopedSymbolId {
-    fn from(val: FileSymbolId) -> Self {
-        val.scoped_symbol_id()
-    }
-}
-
-/// Symbol ID that uniquely identifies a symbol inside a [`Scope`].
-#[newtype_index]
-#[derive(salsa::Update)]
-pub struct ScopedSymbolId;
-
-/// A cross-module identifier of a scope that can be used as a salsa query parameter.
-#[salsa::tracked(debug)]
-pub struct ScopeId<'db> {
-    pub file: File,
-
-    pub file_scope_id: FileScopeId,
-
-    count: countme::Count<ScopeId<'static>>,
-}
-
-impl<'db> ScopeId<'db> {
-    pub(crate) fn is_function_like(self, db: &'db dyn Db) -> bool {
-        self.node(db).scope_kind().is_function_like()
-    }
-
-    pub(crate) fn is_type_parameter(self, db: &'db dyn Db) -> bool {
-        self.node(db).scope_kind().is_type_parameter()
-    }
-
-    pub(crate) fn node(self, db: &dyn Db) -> &NodeWithScopeKind {
-        self.scope(db).node()
-    }
-
-    pub(crate) fn scope(self, db: &dyn Db) -> &Scope {
-        semantic_index(db, self.file(db)).scope(self.file_scope_id(db))
-    }
-
-    #[cfg(test)]
-    pub(crate) fn name(self, db: &'db dyn Db) -> &'db str {
-        match self.node(db) {
-            NodeWithScopeKind::Module => "<module>",
-            NodeWithScopeKind::Class(class) | NodeWithScopeKind::ClassTypeParameters(class) => {
-                class.name.as_str()
-            }
-            NodeWithScopeKind::Function(function)
-            | NodeWithScopeKind::FunctionTypeParameters(function) => function.name.as_str(),
-            NodeWithScopeKind::TypeAlias(type_alias)
-            | NodeWithScopeKind::TypeAliasTypeParameters(type_alias) => type_alias
-                .name
-                .as_name_expr()
-                .map(|name| name.id.as_str())
-                .unwrap_or("<type alias>"),
-            NodeWithScopeKind::Lambda(_) => "<lambda>",
-            NodeWithScopeKind::ListComprehension(_) => "<listcomp>",
-            NodeWithScopeKind::SetComprehension(_) => "<setcomp>",
-            NodeWithScopeKind::DictComprehension(_) => "<dictcomp>",
-            NodeWithScopeKind::GeneratorExpression(_) => "<generator>",
-        }
-    }
-}
-
-/// ID that uniquely identifies a scope inside of a module.
-#[newtype_index]
-#[derive(salsa::Update)]
-pub struct FileScopeId;
-
-impl FileScopeId {
-    /// Returns the scope id of the module-global scope.
-    pub fn global() -> Self {
-        FileScopeId::from_u32(0)
-    }
-
-    pub fn is_global(self) -> bool {
-        self == FileScopeId::global()
-    }
-
-    pub fn to_scope_id(self, db: &dyn Db, file: File) -> ScopeId<'_> {
-        let index = semantic_index(db, file);
-        index.scope_ids_by_scope[self]
-    }
-}
-
-#[derive(Debug, salsa::Update)]
-pub struct Scope {
-    parent: Option<FileScopeId>,
-    node: NodeWithScopeKind,
-    descendants: Range<FileScopeId>,
-    reachability: ScopedVisibilityConstraintId,
-}
-
-impl Scope {
-    pub(super) fn new(
-        parent: Option<FileScopeId>,
-        node: NodeWithScopeKind,
-        descendants: Range<FileScopeId>,
-        reachability: ScopedVisibilityConstraintId,
-    ) -> Self {
-        Scope {
-            parent,
-            node,
-            descendants,
-            reachability,
-        }
-    }
-
-    pub fn parent(&self) -> Option<FileScopeId> {
-        self.parent
-    }
-
-    pub fn node(&self) -> &NodeWithScopeKind {
-        &self.node
-    }
-
-    pub fn kind(&self) -> ScopeKind {
-        self.node().scope_kind()
-    }
-
-    pub fn descendants(&self) -> Range<FileScopeId> {
-        self.descendants.clone()
-    }
-
-    pub(super) fn extend_descendants(&mut self, children_end: FileScopeId) {
-        self.descendants = self.descendants.start..children_end;
-    }
-
-    pub(crate) fn is_eager(&self) -> bool {
-        self.kind().is_eager()
-    }
-
-    pub(crate) fn reachability(&self) -> ScopedVisibilityConstraintId {
-        self.reachability
-    }
-}
-
-#[derive(Copy, Clone, Debug, PartialEq, Eq)]
-pub enum ScopeKind {
-    Module,
-    Annotation,
-    Class,
-    Function,
-    Lambda,
-    Comprehension,
-    TypeAlias,
-}
-
-impl ScopeKind {
-    pub(crate) fn is_eager(self) -> bool {
-        match self {
-            ScopeKind::Module | ScopeKind::Class | ScopeKind::Comprehension => true,
-            ScopeKind::Annotation
-            | ScopeKind::Function
-            | ScopeKind::Lambda
-            | ScopeKind::TypeAlias => false,
-        }
-    }
-
-    pub(crate) fn is_function_like(self) -> bool {
-        // Type parameter scopes behave like function scopes in terms of name resolution; CPython
-        // symbol table also uses the term "function-like" for these scopes.
-        matches!(
-            self,
-            ScopeKind::Annotation
-                | ScopeKind::Function
-                | ScopeKind::Lambda
-                | ScopeKind::TypeAlias
-                | ScopeKind::Comprehension
-        )
-    }
-
-    pub(crate) fn is_class(self) -> bool {
-        matches!(self, ScopeKind::Class)
-    }
-
-    pub(crate) fn is_type_parameter(self) -> bool {
-        matches!(self, ScopeKind::Annotation | ScopeKind::TypeAlias)
-    }
-}
-
-/// Symbol table for a specific [`Scope`].
-#[derive(Default, salsa::Update)]
-pub struct SymbolTable {
-    /// The symbols in this scope.
-    symbols: IndexVec<ScopedSymbolId, Symbol>,
-
-    /// The symbols indexed by name.
-    symbols_by_name: SymbolMap,
-}
-
-impl SymbolTable {
-    fn shrink_to_fit(&mut self) {
-        self.symbols.shrink_to_fit();
-    }
-
-    pub(crate) fn symbol(&self, symbol_id: impl Into<ScopedSymbolId>) -> &Symbol {
-        &self.symbols[symbol_id.into()]
-    }
-
-    #[allow(unused)]
-    pub(crate) fn symbol_ids(&self) -> impl Iterator<Item = ScopedSymbolId> {
-        self.symbols.indices()
-    }
-
-    pub fn symbols(&self) -> impl Iterator<Item = &Symbol> {
-        self.symbols.iter()
-    }
-
-    /// Returns the symbol named `name`.
-    pub(crate) fn symbol_by_name(&self, name: &str) -> Option<&Symbol> {
-        let id = self.symbol_id_by_name(name)?;
-        Some(self.symbol(id))
-    }
-
-    /// Returns the [`ScopedSymbolId`] of the symbol named `name`.
-    pub(crate) fn symbol_id_by_name(&self, name: &str) -> Option<ScopedSymbolId> {
-        let (id, ()) = self
-            .symbols_by_name
-            .raw_entry()
-            .from_hash(Self::hash_name(name), |id| {
-                self.symbol(*id).name().as_str() == name
-            })?;
-
-        Some(*id)
-    }
-
-    fn hash_name(name: &str) -> u64 {
-        let mut hasher = FxHasher::default();
-        name.hash(&mut hasher);
-        hasher.finish()
-    }
-}
-
-impl PartialEq for SymbolTable {
-    fn eq(&self, other: &Self) -> bool {
-        // We don't need to compare the symbols_by_name because the name is already captured in `Symbol`.
-        self.symbols == other.symbols
-    }
-}
-
-impl Eq for SymbolTable {}
-
-impl std::fmt::Debug for SymbolTable {
-    /// Exclude the `symbols_by_name` field from the debug output.
-    /// It's very noisy and not useful for debugging.
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.debug_tuple("SymbolTable")
-            .field(&self.symbols)
-            .finish_non_exhaustive()
-    }
-}
-
-#[derive(Debug, Default)]
-pub(super) struct SymbolTableBuilder {
-    table: SymbolTable,
-}
-
-impl SymbolTableBuilder {
-    pub(super) fn add_symbol(&mut self, name: Name) -> (ScopedSymbolId, bool) {
-        let hash = SymbolTable::hash_name(&name);
-        let entry = self
-            .table
-            .symbols_by_name
-            .raw_entry_mut()
-            .from_hash(hash, |id| self.table.symbols[*id].name() == &name);
-
-        match entry {
-            RawEntryMut::Occupied(entry) => (*entry.key(), false),
-            RawEntryMut::Vacant(entry) => {
-                let symbol = Symbol::new(name);
-
-                let id = self.table.symbols.push(symbol);
-                entry.insert_with_hasher(hash, id, (), |id| {
-                    SymbolTable::hash_name(self.table.symbols[*id].name().as_str())
-                });
-                (id, true)
-            }
-        }
-    }
-
-    pub(super) fn mark_symbol_bound(&mut self, id: ScopedSymbolId) {
-        self.table.symbols[id].insert_flags(SymbolFlags::IS_BOUND);
-    }
-
-    pub(super) fn mark_symbol_declared(&mut self, id: ScopedSymbolId) {
-        self.table.symbols[id].insert_flags(SymbolFlags::IS_DECLARED);
-    }
-
-    pub(super) fn mark_symbol_used(&mut self, id: ScopedSymbolId) {
-        self.table.symbols[id].insert_flags(SymbolFlags::IS_USED);
-    }
-
-    pub(super) fn symbols(&self) -> impl Iterator<Item = &Symbol> {
-        self.table.symbols()
-    }
-
-    pub(super) fn symbol_id_by_name(&self, name: &str) -> Option<ScopedSymbolId> {
-        self.table.symbol_id_by_name(name)
-    }
-
-    pub(super) fn symbol(&self, symbol_id: impl Into<ScopedSymbolId>) -> &Symbol {
-        self.table.symbol(symbol_id)
-    }
-
-    pub(super) fn finish(mut self) -> SymbolTable {
-        self.table.shrink_to_fit();
-        self.table
-    }
-}
-
-/// Reference to a node that introduces a new scope.
-#[derive(Copy, Clone, Debug)]
-pub(crate) enum NodeWithScopeRef<'a> {
-    Module,
-    Class(&'a ast::StmtClassDef),
-    Function(&'a ast::StmtFunctionDef),
-    Lambda(&'a ast::ExprLambda),
-    FunctionTypeParameters(&'a ast::StmtFunctionDef),
-    ClassTypeParameters(&'a ast::StmtClassDef),
-    TypeAlias(&'a ast::StmtTypeAlias),
-    TypeAliasTypeParameters(&'a ast::StmtTypeAlias),
-    ListComprehension(&'a ast::ExprListComp),
-    SetComprehension(&'a ast::ExprSetComp),
-    DictComprehension(&'a ast::ExprDictComp),
-    GeneratorExpression(&'a ast::ExprGenerator),
-}
-
-impl NodeWithScopeRef<'_> {
-    /// Converts the unowned reference to an owned [`NodeWithScopeKind`].
-    ///
-    /// # Safety
-    /// The node wrapped by `self` must be a child of `module`.
-    #[allow(unsafe_code)]
-    pub(super) unsafe fn to_kind(self, module: ParsedModule) -> NodeWithScopeKind {
-        match self {
-            NodeWithScopeRef::Module => NodeWithScopeKind::Module,
-            NodeWithScopeRef::Class(class) => {
-                NodeWithScopeKind::Class(AstNodeRef::new(module, class))
-            }
-            NodeWithScopeRef::Function(function) => {
-                NodeWithScopeKind::Function(AstNodeRef::new(module, function))
-            }
-            NodeWithScopeRef::TypeAlias(type_alias) => {
-                NodeWithScopeKind::TypeAlias(AstNodeRef::new(module, type_alias))
-            }
-            NodeWithScopeRef::TypeAliasTypeParameters(type_alias) => {
-                NodeWithScopeKind::TypeAliasTypeParameters(AstNodeRef::new(module, type_alias))
-            }
-            NodeWithScopeRef::Lambda(lambda) => {
-                NodeWithScopeKind::Lambda(AstNodeRef::new(module, lambda))
-            }
-            NodeWithScopeRef::FunctionTypeParameters(function) => {
-                NodeWithScopeKind::FunctionTypeParameters(AstNodeRef::new(module, function))
-            }
-            NodeWithScopeRef::ClassTypeParameters(class) => {
-                NodeWithScopeKind::ClassTypeParameters(AstNodeRef::new(module, class))
-            }
-            NodeWithScopeRef::ListComprehension(comprehension) => {
-                NodeWithScopeKind::ListComprehension(AstNodeRef::new(module, comprehension))
-            }
-            NodeWithScopeRef::SetComprehension(comprehension) => {
-                NodeWithScopeKind::SetComprehension(AstNodeRef::new(module, comprehension))
-            }
-            NodeWithScopeRef::DictComprehension(comprehension) => {
-                NodeWithScopeKind::DictComprehension(AstNodeRef::new(module, comprehension))
-            }
-            NodeWithScopeRef::GeneratorExpression(generator) => {
-                NodeWithScopeKind::GeneratorExpression(AstNodeRef::new(module, generator))
-            }
-        }
-    }
-
-    pub(crate) fn node_key(self) -> NodeWithScopeKey {
-        match self {
-            NodeWithScopeRef::Module => NodeWithScopeKey::Module,
-            NodeWithScopeRef::Class(class) => NodeWithScopeKey::Class(NodeKey::from_node(class)),
-            NodeWithScopeRef::Function(function) => {
-                NodeWithScopeKey::Function(NodeKey::from_node(function))
-            }
-            NodeWithScopeRef::Lambda(lambda) => {
-                NodeWithScopeKey::Lambda(NodeKey::from_node(lambda))
-            }
-            NodeWithScopeRef::FunctionTypeParameters(function) => {
-                NodeWithScopeKey::FunctionTypeParameters(NodeKey::from_node(function))
-            }
-            NodeWithScopeRef::ClassTypeParameters(class) => {
-                NodeWithScopeKey::ClassTypeParameters(NodeKey::from_node(class))
-            }
-            NodeWithScopeRef::TypeAlias(type_alias) => {
-                NodeWithScopeKey::TypeAlias(NodeKey::from_node(type_alias))
-            }
-            NodeWithScopeRef::TypeAliasTypeParameters(type_alias) => {
-                NodeWithScopeKey::TypeAliasTypeParameters(NodeKey::from_node(type_alias))
-            }
-            NodeWithScopeRef::ListComprehension(comprehension) => {
-                NodeWithScopeKey::ListComprehension(NodeKey::from_node(comprehension))
-            }
-            NodeWithScopeRef::SetComprehension(comprehension) => {
-                NodeWithScopeKey::SetComprehension(NodeKey::from_node(comprehension))
-            }
-            NodeWithScopeRef::DictComprehension(comprehension) => {
-                NodeWithScopeKey::DictComprehension(NodeKey::from_node(comprehension))
-            }
-            NodeWithScopeRef::GeneratorExpression(generator) => {
-                NodeWithScopeKey::GeneratorExpression(NodeKey::from_node(generator))
-            }
-        }
-    }
-}
-
-/// Node that introduces a new scope.
-#[derive(Clone, Debug, salsa::Update)]
-pub enum NodeWithScopeKind {
-    Module,
-    Class(AstNodeRef<ast::StmtClassDef>),
-    ClassTypeParameters(AstNodeRef<ast::StmtClassDef>),
-    Function(AstNodeRef<ast::StmtFunctionDef>),
-    FunctionTypeParameters(AstNodeRef<ast::StmtFunctionDef>),
-    TypeAliasTypeParameters(AstNodeRef<ast::StmtTypeAlias>),
-    TypeAlias(AstNodeRef<ast::StmtTypeAlias>),
-    Lambda(AstNodeRef<ast::ExprLambda>),
-    ListComprehension(AstNodeRef<ast::ExprListComp>),
-    SetComprehension(AstNodeRef<ast::ExprSetComp>),
-    DictComprehension(AstNodeRef<ast::ExprDictComp>),
-    GeneratorExpression(AstNodeRef<ast::ExprGenerator>),
-}
-
-impl NodeWithScopeKind {
-    pub(crate) const fn scope_kind(&self) -> ScopeKind {
-        match self {
-            Self::Module => ScopeKind::Module,
-            Self::Class(_) => ScopeKind::Class,
-            Self::Function(_) => ScopeKind::Function,
-            Self::Lambda(_) => ScopeKind::Lambda,
-            Self::FunctionTypeParameters(_)
-            | Self::ClassTypeParameters(_)
-            | Self::TypeAliasTypeParameters(_) => ScopeKind::Annotation,
-            Self::TypeAlias(_) => ScopeKind::TypeAlias,
-            Self::ListComprehension(_)
-            | Self::SetComprehension(_)
-            | Self::DictComprehension(_)
-            | Self::GeneratorExpression(_) => ScopeKind::Comprehension,
-        }
-    }
-
-    pub fn expect_class(&self) -> &ast::StmtClassDef {
-        match self {
-            Self::Class(class) => class.node(),
-            _ => panic!("expected class"),
-        }
-    }
-
-    pub fn expect_function(&self) -> &ast::StmtFunctionDef {
-        self.as_function().expect("expected function")
-    }
-
-    pub fn expect_type_alias(&self) -> &ast::StmtTypeAlias {
-        match self {
-            Self::TypeAlias(type_alias) => type_alias.node(),
-            _ => panic!("expected type alias"),
-        }
-    }
-
-    pub const fn as_function(&self) -> Option<&ast::StmtFunctionDef> {
-        match self {
-            Self::Function(function) => Some(function.node()),
-            _ => None,
-        }
-    }
-}
-
-#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
-pub(crate) enum NodeWithScopeKey {
-    Module,
-    Class(NodeKey),
-    ClassTypeParameters(NodeKey),
-    Function(NodeKey),
-    FunctionTypeParameters(NodeKey),
-    TypeAlias(NodeKey),
-    TypeAliasTypeParameters(NodeKey),
-    Lambda(NodeKey),
-    ListComprehension(NodeKey),
-    SetComprehension(NodeKey),
-    DictComprehension(NodeKey),
-    GeneratorExpression(NodeKey),
-}

crates/red_knot_python_semantic/src/site_packages.rs

@@ -1,916 +0,0 @@
-//! Utilities for finding the `site-packages` directory,
-//! into which third-party packages are installed.
-//!
-//! The routines exposed by this module have different behaviour depending
-//! on the platform of the *host machine*, which may be
-//! different from the *target platform for type checking*. (A user
-//! might be running red-knot on a Windows machine, but might
-//! reasonably ask us to type-check code assuming that the code runs
-//! on Linux.)
-
-use std::fmt;
-use std::fmt::Display;
-use std::io;
-use std::num::NonZeroUsize;
-use std::ops::Deref;
-
-use ruff_db::system::{System, SystemPath, SystemPathBuf};
-use ruff_python_ast::PythonVersion;
-
-type SitePackagesDiscoveryResult<T> = Result<T, SitePackagesDiscoveryError>;
-
-/// Abstraction for a Python virtual environment.
-///
-/// Most of this information is derived from the virtual environment's `pyvenv.cfg` file.
-/// The format of this file is not defined anywhere, and exactly which keys are present
-/// depends on the tool that was used to create the virtual environment.
-#[derive(Debug)]
-pub(crate) struct VirtualEnvironment {
-    venv_path: SysPrefixPath,
-    base_executable_home_path: PythonHomePath,
-    include_system_site_packages: bool,
-
-    /// The version of the Python executable that was used to create this virtual environment.
-    ///
-    /// The Python version is encoded under different keys and in different formats
-    /// by different virtual-environment creation tools,
-    /// and the key is never read by the standard-library `site.py` module,
-    /// so it's possible that we might not be able to find this information
-    /// in an acceptable format under any of the keys we expect.
-    /// This field will be `None` if so.
-    version: Option<PythonVersion>,
-}
-
-impl VirtualEnvironment {
-    pub(crate) fn new(
-        path: impl AsRef<SystemPath>,
-        origin: SysPrefixPathOrigin,
-        system: &dyn System,
-    ) -> SitePackagesDiscoveryResult<Self> {
-        Self::new_impl(path.as_ref(), origin, system)
-    }
-
-    fn new_impl(
-        path: &SystemPath,
-        origin: SysPrefixPathOrigin,
-        system: &dyn System,
-    ) -> SitePackagesDiscoveryResult<Self> {
-        fn pyvenv_cfg_line_number(index: usize) -> NonZeroUsize {
-            index.checked_add(1).and_then(NonZeroUsize::new).unwrap()
-        }
-
-        let venv_path = SysPrefixPath::new(path, origin, system)?;
-        let pyvenv_cfg_path = venv_path.join("pyvenv.cfg");
-        tracing::debug!("Attempting to parse virtual environment metadata at '{pyvenv_cfg_path}'");
-
-        let pyvenv_cfg = system
-            .read_to_string(&pyvenv_cfg_path)
-            .map_err(|io_err| SitePackagesDiscoveryError::NoPyvenvCfgFile(origin, io_err))?;
-
-        let mut include_system_site_packages = false;
-        let mut base_executable_home_path = None;
-        let mut version_info_string = None;
-
-        // A `pyvenv.cfg` file *looks* like a `.ini` file, but actually isn't valid `.ini` syntax!
-        // The Python standard-library's `site` module parses these files by splitting each line on
-        // '=' characters, so that's what we should do as well.
-        //
-        // See also: https://snarky.ca/how-virtual-environments-work/
-        for (index, line) in pyvenv_cfg.lines().enumerate() {
-            if let Some((key, value)) = line.split_once('=') {
-                let key = key.trim();
-                if key.is_empty() {
-                    return Err(SitePackagesDiscoveryError::PyvenvCfgParseError(
-                        pyvenv_cfg_path,
-                        PyvenvCfgParseErrorKind::MalformedKeyValuePair {
-                            line_number: pyvenv_cfg_line_number(index),
-                        },
-                    ));
-                }
-
-                let value = value.trim();
-                if value.is_empty() {
-                    return Err(SitePackagesDiscoveryError::PyvenvCfgParseError(
-                        pyvenv_cfg_path,
-                        PyvenvCfgParseErrorKind::MalformedKeyValuePair {
-                            line_number: pyvenv_cfg_line_number(index),
-                        },
-                    ));
-                }
-
-                if value.contains('=') {
-                    return Err(SitePackagesDiscoveryError::PyvenvCfgParseError(
-                        pyvenv_cfg_path,
-                        PyvenvCfgParseErrorKind::TooManyEquals {
-                            line_number: pyvenv_cfg_line_number(index),
-                        },
-                    ));
-                }
-
-                match key {
-                    "include-system-site-packages" => {
-                        include_system_site_packages = value.eq_ignore_ascii_case("true");
-                    }
-                    "home" => base_executable_home_path = Some(value),
-                    // `virtualenv` and `uv` call this key `version_info`,
-                    // but the stdlib venv module calls it `version`
-                    "version" | "version_info" => version_info_string = Some(value),
-                    _ => continue,
-                }
-            }
-        }
-
-        // The `home` key is read by the standard library's `site.py` module,
-        // so if it's missing from the `pyvenv.cfg` file
-        // (or the provided value is invalid),
-        // it's reasonable to consider the virtual environment irredeemably broken.
-        let Some(base_executable_home_path) = base_executable_home_path else {
-            return Err(SitePackagesDiscoveryError::PyvenvCfgParseError(
-                pyvenv_cfg_path,
-                PyvenvCfgParseErrorKind::NoHomeKey,
-            ));
-        };
-        let base_executable_home_path = PythonHomePath::new(base_executable_home_path, system)
-            .map_err(|io_err| {
-                SitePackagesDiscoveryError::PyvenvCfgParseError(
-                    pyvenv_cfg_path,
-                    PyvenvCfgParseErrorKind::InvalidHomeValue(io_err),
-                )
-            })?;
-
-        // but the `version`/`version_info` key is not read by the standard library,
-        // and is provided under different keys depending on which virtual-environment creation tool
-        // created the `pyvenv.cfg` file. Lenient parsing is appropriate here:
-        // the file isn't really *invalid* if it doesn't have this key,
-        // or if the value doesn't parse according to our expectations.
-        let version = version_info_string.and_then(|version_string| {
-            let mut version_info_parts = version_string.split('.');
-            let (major, minor) = (version_info_parts.next()?, version_info_parts.next()?);
-            PythonVersion::try_from((major, minor)).ok()
-        });
-
-        let metadata = Self {
-            venv_path,
-            base_executable_home_path,
-            include_system_site_packages,
-            version,
-        };
-
-        tracing::trace!("Resolved metadata for virtual environment: {metadata:?}");
-        Ok(metadata)
-    }
-
-    /// Return a list of `site-packages` directories that are available from this virtual environment
-    ///
-    /// See the documentation for `site_packages_dir_from_sys_prefix` for more details.
-    pub(crate) fn site_packages_directories(
-        &self,
-        system: &dyn System,
-    ) -> SitePackagesDiscoveryResult<Vec<SystemPathBuf>> {
-        let VirtualEnvironment {
-            venv_path,
-            base_executable_home_path,
-            include_system_site_packages,
-            version,
-        } = self;
-
-        let mut site_packages_directories = vec![site_packages_directory_from_sys_prefix(
-            venv_path, *version, system,
-        )?];
-
-        if *include_system_site_packages {
-            let system_sys_prefix =
-                SysPrefixPath::from_executable_home_path(base_executable_home_path);
-
-            // If we fail to resolve the `sys.prefix` path from the base executable home path,
-            // or if we fail to resolve the `site-packages` from the `sys.prefix` path,
-            // we should probably print a warning but *not* abort type checking
-            if let Some(sys_prefix_path) = system_sys_prefix {
-                match site_packages_directory_from_sys_prefix(&sys_prefix_path, *version, system) {
-                    Ok(site_packages_directory) => {
-                        site_packages_directories.push(site_packages_directory);
-                    }
-                    Err(error) => tracing::warn!(
-                        "{error}. System site-packages will not be used for module resolution."
-                    ),
-                }
-            } else {
-                tracing::warn!(
-                    "Failed to resolve `sys.prefix` of the system Python installation \
-from the `home` value in the `pyvenv.cfg` file at `{}`. \
-System site-packages will not be used for module resolution.",
-                    venv_path.join("pyvenv.cfg")
-                );
-            }
-        }
-
-        tracing::debug!("Resolved site-packages directories for this virtual environment are: {site_packages_directories:?}");
-        Ok(site_packages_directories)
-    }
-}
-
-#[derive(Debug, thiserror::Error)]
-pub(crate) enum SitePackagesDiscoveryError {
-    #[error("Invalid {1}: `{0}` could not be canonicalized")]
-    VenvDirCanonicalizationError(SystemPathBuf, SysPrefixPathOrigin, #[source] io::Error),
-    #[error("Invalid {1}: `{0}` does not point to a directory on disk")]
-    VenvDirIsNotADirectory(SystemPathBuf, SysPrefixPathOrigin),
-    #[error("{0} points to a broken venv with no pyvenv.cfg file")]
-    NoPyvenvCfgFile(SysPrefixPathOrigin, #[source] io::Error),
-    #[error("Failed to parse the pyvenv.cfg file at {0} because {1}")]
-    PyvenvCfgParseError(SystemPathBuf, PyvenvCfgParseErrorKind),
-    #[error("Failed to search the `lib` directory of the Python installation at {1} for `site-packages`")]
-    CouldNotReadLibDirectory(#[source] io::Error, SysPrefixPath),
-    #[error("Could not find the `site-packages` directory for the Python installation at {0}")]
-    NoSitePackagesDirFound(SysPrefixPath),
-}
-
-/// The various ways in which parsing a `pyvenv.cfg` file could fail
-#[derive(Debug)]
-pub(crate) enum PyvenvCfgParseErrorKind {
-    TooManyEquals { line_number: NonZeroUsize },
-    MalformedKeyValuePair { line_number: NonZeroUsize },
-    NoHomeKey,
-    InvalidHomeValue(io::Error),
-}
-
-impl fmt::Display for PyvenvCfgParseErrorKind {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        match self {
-            Self::TooManyEquals { line_number } => {
-                write!(f, "line {line_number} has too many '=' characters")
-            }
-            Self::MalformedKeyValuePair { line_number } => write!(
-                f,
-                "line {line_number} has a malformed `<key> = <value>` pair"
-            ),
-            Self::NoHomeKey => f.write_str("the file does not have a `home` key"),
-            Self::InvalidHomeValue(io_err) => {
-                write!(
-                    f,
-                    "the following error was encountered \
-when trying to resolve the `home` value to a directory on disk: {io_err}"
-                )
-            }
-        }
-    }
-}
-
-/// Attempt to retrieve the `site-packages` directory
-/// associated with a given Python installation.
-///
-/// The location of the `site-packages` directory can vary according to the
-/// Python version that this installation represents. The Python version may
-/// or may not be known at this point, which is why the `python_version`
-/// parameter is an `Option`.
-fn site_packages_directory_from_sys_prefix(
-    sys_prefix_path: &SysPrefixPath,
-    python_version: Option<PythonVersion>,
-    system: &dyn System,
-) -> SitePackagesDiscoveryResult<SystemPathBuf> {
-    tracing::debug!("Searching for site-packages directory in {sys_prefix_path}");
-
-    if cfg!(target_os = "windows") {
-        let site_packages = sys_prefix_path.join(r"Lib\site-packages");
-        return system
-            .is_directory(&site_packages)
-            .then_some(site_packages)
-            .ok_or(SitePackagesDiscoveryError::NoSitePackagesDirFound(
-                sys_prefix_path.to_owned(),
-            ));
-    }
-
-    // In the Python standard library's `site.py` module (used for finding `site-packages`
-    // at runtime), we can find this in [the non-Windows branch]:
-    //
-    // ```py
-    // libdirs = [sys.platlibdir]
-    // if sys.platlibdir != "lib":
-    //     libdirs.append("lib")
-    // ```
-    //
-    // Pyright therefore searches for both a `lib/python3.X/site-packages` directory
-    // and a `lib64/python3.X/site-packages` directory on non-MacOS Unix systems,
-    // since `sys.platlibdir` can sometimes be equal to `"lib64"`.
-    //
-    // However, we only care about the `site-packages` directory insofar as it allows
-    // us to discover Python source code that can be used for inferring type
-    // information regarding third-party dependencies. That means that we don't need
-    // to care about any possible `lib64/site-packages` directories, since
-    // [the `sys`-module documentation] states that `sys.platlibdir` is *only* ever
-    // used for C extensions, never for pure-Python modules.
-    //
-    // [the non-Windows branch]: https://github.com/python/cpython/blob/a8be8fc6c4682089be45a87bd5ee1f686040116c/Lib/site.py#L401-L410
-    // [the `sys`-module documentation]: https://docs.python.org/3/library/sys.html#sys.platlibdir
-
-    // If we were able to figure out what Python version this installation is,
-    // we should be able to avoid iterating through all items in the `lib/` directory:
-    if let Some(version) = python_version {
-        let expected_path = sys_prefix_path.join(format!("lib/python{version}/site-packages"));
-        if system.is_directory(&expected_path) {
-            return Ok(expected_path);
-        }
-        if version.free_threaded_build_available() {
-            // Nearly the same as `expected_path`, but with an additional `t` after {version}:
-            let alternative_path =
-                sys_prefix_path.join(format!("lib/python{version}t/site-packages"));
-            if system.is_directory(&alternative_path) {
-                return Ok(alternative_path);
-            }
-        }
-    }
-
-    // Either we couldn't figure out the version before calling this function
-    // (e.g., from a `pyvenv.cfg` file if this was a venv),
-    // or we couldn't find a `site-packages` folder at the expected location given
-    // the parsed version
-    //
-    // Note: the `python3.x` part of the `site-packages` path can't be computed from
-    // the `--python-version` the user has passed, as they might be running Python 3.12 locally
-    // even if they've requested that we type check their code "as if" they're running 3.8.
-    for entry_result in system
-        .read_directory(&sys_prefix_path.join("lib"))
-        .map_err(|io_err| {
-            SitePackagesDiscoveryError::CouldNotReadLibDirectory(io_err, sys_prefix_path.to_owned())
-        })?
-    {
-        let Ok(entry) = entry_result else {
-            continue;
-        };
-
-        if !entry.file_type().is_directory() {
-            continue;
-        }
-
-        let mut path = entry.into_path();
-
-        let name = path
-            .file_name()
-            .expect("File name to be non-null because path is guaranteed to be a child of `lib`");
-
-        if !name.starts_with("python3.") {
-            continue;
-        }
-
-        path.push("site-packages");
-        if system.is_directory(&path) {
-            return Ok(path);
-        }
-    }
-    Err(SitePackagesDiscoveryError::NoSitePackagesDirFound(
-        sys_prefix_path.to_owned(),
-    ))
-}
-
-/// A path that represents the value of [`sys.prefix`] at runtime in Python
-/// for a given Python executable.
-///
-/// For the case of a virtual environment, where a
-/// Python binary is at `/.venv/bin/python`, `sys.prefix` is the path to
-/// the virtual environment the Python binary lies inside, i.e. `/.venv`,
-/// and `site-packages` will be at `.venv/lib/python3.X/site-packages`.
-/// System Python installations generally work the same way: if a system
-/// Python installation lies at `/opt/homebrew/bin/python`, `sys.prefix`
-/// will be `/opt/homebrew`, and `site-packages` will be at
-/// `/opt/homebrew/lib/python3.X/site-packages`.
-///
-/// [`sys.prefix`]: https://docs.python.org/3/library/sys.html#sys.prefix
-#[derive(Debug, PartialEq, Eq, Clone)]
-pub(crate) struct SysPrefixPath {
-    inner: SystemPathBuf,
-    origin: SysPrefixPathOrigin,
-}
-
-impl SysPrefixPath {
-    fn new(
-        unvalidated_path: impl AsRef<SystemPath>,
-        origin: SysPrefixPathOrigin,
-        system: &dyn System,
-    ) -> SitePackagesDiscoveryResult<Self> {
-        Self::new_impl(unvalidated_path.as_ref(), origin, system)
-    }
-
-    fn new_impl(
-        unvalidated_path: &SystemPath,
-        origin: SysPrefixPathOrigin,
-        system: &dyn System,
-    ) -> SitePackagesDiscoveryResult<Self> {
-        // It's important to resolve symlinks here rather than simply making the path absolute,
-        // since system Python installations often only put symlinks in the "expected"
-        // locations for `home` and `site-packages`
-        let canonicalized = system
-            .canonicalize_path(unvalidated_path)
-            .map_err(|io_err| {
-                SitePackagesDiscoveryError::VenvDirCanonicalizationError(
-                    unvalidated_path.to_path_buf(),
-                    origin,
-                    io_err,
-                )
-            })?;
-        system
-            .is_directory(&canonicalized)
-            .then_some(Self {
-                inner: canonicalized,
-                origin,
-            })
-            .ok_or_else(|| {
-                SitePackagesDiscoveryError::VenvDirIsNotADirectory(
-                    unvalidated_path.to_path_buf(),
-                    origin,
-                )
-            })
-    }
-
-    fn from_executable_home_path(path: &PythonHomePath) -> Option<Self> {
-        // No need to check whether `path.parent()` is a directory:
-        // the parent of a canonicalised path that is known to exist
-        // is guaranteed to be a directory.
-        if cfg!(target_os = "windows") {
-            Some(Self {
-                inner: path.to_path_buf(),
-                origin: SysPrefixPathOrigin::Derived,
-            })
-        } else {
-            path.parent().map(|path| Self {
-                inner: path.to_path_buf(),
-                origin: SysPrefixPathOrigin::Derived,
-            })
-        }
-    }
-}
-
-impl Deref for SysPrefixPath {
-    type Target = SystemPath;
-
-    fn deref(&self) -> &Self::Target {
-        &self.inner
-    }
-}
-
-impl fmt::Display for SysPrefixPath {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "`sys.prefix` path `{}`", self.inner)
-    }
-}
-
-#[derive(Debug, PartialEq, Eq, Copy, Clone)]
-#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
-pub enum SysPrefixPathOrigin {
-    PythonCliFlag,
-    VirtualEnvVar,
-    Derived,
-    LocalVenv,
-}
-
-impl Display for SysPrefixPathOrigin {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        match self {
-            Self::PythonCliFlag => f.write_str("`--python` argument"),
-            Self::VirtualEnvVar => f.write_str("`VIRTUAL_ENV` environment variable"),
-            Self::Derived => f.write_str("derived `sys.prefix` path"),
-            Self::LocalVenv => f.write_str("local virtual environment"),
-        }
-    }
-}
-
-/// The value given by the `home` key in `pyvenv.cfg` files.
-///
-/// This is equivalent to `{sys_prefix_path}/bin`, and points
-/// to a directory in which a Python executable can be found.
-/// Confusingly, it is *not* the same as the [`PYTHONHOME`]
-/// environment variable that Python provides! However, it's
-/// consistent among all mainstream creators of Python virtual
-/// environments (the stdlib Python `venv` module, the third-party
-/// `virtualenv` library, and `uv`), was specified by
-/// [the original PEP adding the `venv` module],
-/// and it's one of the few fields that's read by the Python
-/// standard library's `site.py` module.
-///
-/// Although it doesn't appear to be specified anywhere,
-/// all existing virtual environment tools always use an absolute path
-/// for the `home` value, and the Python standard library also assumes
-/// that the `home` value will be an absolute path.
-///
-/// Other values, such as the path to the Python executable or the
-/// base-executable `sys.prefix` value, are either only provided in
-/// `pyvenv.cfg` files by some virtual-environment creators,
-/// or are included under different keys depending on which
-/// virtual-environment creation tool you've used.
-///
-/// [`PYTHONHOME`]: https://docs.python.org/3/using/cmdline.html#envvar-PYTHONHOME
-/// [the original PEP adding the `venv` module]: https://peps.python.org/pep-0405/
-#[derive(Debug, PartialEq, Eq)]
-struct PythonHomePath(SystemPathBuf);
-
-impl PythonHomePath {
-    fn new(path: impl AsRef<SystemPath>, system: &dyn System) -> io::Result<Self> {
-        let path = path.as_ref();
-        // It's important to resolve symlinks here rather than simply making the path absolute,
-        // since system Python installations often only put symlinks in the "expected"
-        // locations for `home` and `site-packages`
-        let canonicalized = system.canonicalize_path(path)?;
-        system
-            .is_directory(&canonicalized)
-            .then_some(Self(canonicalized))
-            .ok_or_else(|| io::Error::new(io::ErrorKind::Other, "not a directory"))
-    }
-}
-
-impl Deref for PythonHomePath {
-    type Target = SystemPath;
-
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl fmt::Display for PythonHomePath {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "`home` location `{}`", self.0)
-    }
-}
-
-impl PartialEq<SystemPath> for PythonHomePath {
-    fn eq(&self, other: &SystemPath) -> bool {
-        &*self.0 == other
-    }
-}
-
-impl PartialEq<SystemPathBuf> for PythonHomePath {
-    fn eq(&self, other: &SystemPathBuf) -> bool {
-        self == &**other
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use ruff_db::system::TestSystem;
-
-    use super::*;
-
-    struct VirtualEnvironmentTester {
-        system: TestSystem,
-        minor_version: u8,
-        free_threaded: bool,
-        system_site_packages: bool,
-        pyvenv_cfg_version_field: Option<&'static str>,
-    }
-
-    impl VirtualEnvironmentTester {
-        /// Builds a mock virtual environment, and returns the path to the venv
-        fn build_mock_venv(&self) -> SystemPathBuf {
-            let VirtualEnvironmentTester {
-                system,
-                minor_version,
-                system_site_packages,
-                free_threaded,
-                pyvenv_cfg_version_field,
-            } = self;
-            let memory_fs = system.memory_file_system();
-            let unix_site_packages = if *free_threaded {
-                format!("lib/python3.{minor_version}t/site-packages")
-            } else {
-                format!("lib/python3.{minor_version}/site-packages")
-            };
-
-            let system_install_sys_prefix =
-                SystemPathBuf::from(&*format!("/Python3.{minor_version}"));
-            let (system_home_path, system_exe_path, system_site_packages_path) =
-                if cfg!(target_os = "windows") {
-                    let system_home_path = system_install_sys_prefix.clone();
-                    let system_exe_path = system_home_path.join("python.exe");
-                    let system_site_packages_path =
-                        system_install_sys_prefix.join(r"Lib\site-packages");
-                    (system_home_path, system_exe_path, system_site_packages_path)
-                } else {
-                    let system_home_path = system_install_sys_prefix.join("bin");
-                    let system_exe_path = system_home_path.join("python");
-                    let system_site_packages_path =
-                        system_install_sys_prefix.join(&unix_site_packages);
-                    (system_home_path, system_exe_path, system_site_packages_path)
-                };
-            memory_fs.write_file_all(system_exe_path, "").unwrap();
-            memory_fs
-                .create_directory_all(&system_site_packages_path)
-                .unwrap();
-
-            let venv_sys_prefix = SystemPathBuf::from("/.venv");
-            let (venv_exe, site_packages_path) = if cfg!(target_os = "windows") {
-                (
-                    venv_sys_prefix.join(r"Scripts\python.exe"),
-                    venv_sys_prefix.join(r"Lib\site-packages"),
-                )
-            } else {
-                (
-                    venv_sys_prefix.join("bin/python"),
-                    venv_sys_prefix.join(&unix_site_packages),
-                )
-            };
-            memory_fs.write_file_all(&venv_exe, "").unwrap();
-            memory_fs.create_directory_all(&site_packages_path).unwrap();
-
-            let pyvenv_cfg_path = venv_sys_prefix.join("pyvenv.cfg");
-            let mut pyvenv_cfg_contents = format!("home = {system_home_path}\n");
-            if let Some(version_field) = pyvenv_cfg_version_field {
-                pyvenv_cfg_contents.push_str(version_field);
-                pyvenv_cfg_contents.push('\n');
-            }
-            // Deliberately using weird casing here to test that our pyvenv.cfg parsing is case-insensitive:
-            if *system_site_packages {
-                pyvenv_cfg_contents.push_str("include-system-site-packages = TRuE\n");
-            }
-            memory_fs
-                .write_file_all(pyvenv_cfg_path, &pyvenv_cfg_contents)
-                .unwrap();
-
-            venv_sys_prefix
-        }
-
-        fn test(self) {
-            let venv_path = self.build_mock_venv();
-            let venv = VirtualEnvironment::new(
-                venv_path.clone(),
-                SysPrefixPathOrigin::VirtualEnvVar,
-                &self.system,
-            )
-            .unwrap();
-
-            assert_eq!(
-                venv.venv_path,
-                SysPrefixPath {
-                    inner: self.system.canonicalize_path(&venv_path).unwrap(),
-                    origin: SysPrefixPathOrigin::VirtualEnvVar,
-                }
-            );
-            assert_eq!(venv.include_system_site_packages, self.system_site_packages);
-
-            if self.pyvenv_cfg_version_field.is_some() {
-                assert_eq!(
-                    venv.version,
-                    Some(PythonVersion {
-                        major: 3,
-                        minor: self.minor_version
-                    })
-                );
-            } else {
-                assert_eq!(venv.version, None);
-            }
-
-            let expected_home = if cfg!(target_os = "windows") {
-                SystemPathBuf::from(&*format!(r"\Python3.{}", self.minor_version))
-            } else {
-                SystemPathBuf::from(&*format!("/Python3.{}/bin", self.minor_version))
-            };
-            assert_eq!(venv.base_executable_home_path, expected_home);
-
-            let site_packages_directories = venv.site_packages_directories(&self.system).unwrap();
-            let expected_venv_site_packages = if cfg!(target_os = "windows") {
-                SystemPathBuf::from(r"\.venv\Lib\site-packages")
-            } else if self.free_threaded {
-                SystemPathBuf::from(&*format!(
-                    "/.venv/lib/python3.{}t/site-packages",
-                    self.minor_version
-                ))
-            } else {
-                SystemPathBuf::from(&*format!(
-                    "/.venv/lib/python3.{}/site-packages",
-                    self.minor_version
-                ))
-            };
-
-            let expected_system_site_packages = if cfg!(target_os = "windows") {
-                SystemPathBuf::from(&*format!(
-                    r"\Python3.{}\Lib\site-packages",
-                    self.minor_version
-                ))
-            } else if self.free_threaded {
-                SystemPathBuf::from(&*format!(
-                    "/Python3.{minor_version}/lib/python3.{minor_version}t/site-packages",
-                    minor_version = self.minor_version
-                ))
-            } else {
-                SystemPathBuf::from(&*format!(
-                    "/Python3.{minor_version}/lib/python3.{minor_version}/site-packages",
-                    minor_version = self.minor_version
-                ))
-            };
-
-            if self.system_site_packages {
-                assert_eq!(
-                    &site_packages_directories,
-                    &[expected_venv_site_packages, expected_system_site_packages]
-                );
-            } else {
-                assert_eq!(&site_packages_directories, &[expected_venv_site_packages]);
-            }
-        }
-    }
-
-    #[test]
-    fn can_find_site_packages_directory_no_version_field_in_pyvenv_cfg() {
-        let tester = VirtualEnvironmentTester {
-            system: TestSystem::default(),
-            minor_version: 12,
-            free_threaded: false,
-            system_site_packages: false,
-            pyvenv_cfg_version_field: None,
-        };
-        tester.test();
-    }
-
-    #[test]
-    fn can_find_site_packages_directory_venv_style_version_field_in_pyvenv_cfg() {
-        let tester = VirtualEnvironmentTester {
-            system: TestSystem::default(),
-            minor_version: 12,
-            free_threaded: false,
-            system_site_packages: false,
-            pyvenv_cfg_version_field: Some("version = 3.12"),
-        };
-        tester.test();
-    }
-
-    #[test]
-    fn can_find_site_packages_directory_uv_style_version_field_in_pyvenv_cfg() {
-        let tester = VirtualEnvironmentTester {
-            system: TestSystem::default(),
-            minor_version: 12,
-            free_threaded: false,
-            system_site_packages: false,
-            pyvenv_cfg_version_field: Some("version_info = 3.12"),
-        };
-        tester.test();
-    }
-
-    #[test]
-    fn can_find_site_packages_directory_virtualenv_style_version_field_in_pyvenv_cfg() {
-        let tester = VirtualEnvironmentTester {
-            system: TestSystem::default(),
-            minor_version: 12,
-            free_threaded: false,
-            system_site_packages: false,
-            pyvenv_cfg_version_field: Some("version_info = 3.12.0rc2"),
-        };
-        tester.test();
-    }
-
-    #[test]
-    fn can_find_site_packages_directory_freethreaded_build() {
-        let tester = VirtualEnvironmentTester {
-            system: TestSystem::default(),
-            minor_version: 13,
-            free_threaded: true,
-            system_site_packages: false,
-            pyvenv_cfg_version_field: Some("version_info = 3.13"),
-        };
-        tester.test();
-    }
-
-    #[test]
-    fn finds_system_site_packages() {
-        let tester = VirtualEnvironmentTester {
-            system: TestSystem::default(),
-            minor_version: 13,
-            free_threaded: true,
-            system_site_packages: true,
-            pyvenv_cfg_version_field: Some("version_info = 3.13"),
-        };
-        tester.test();
-    }
-
-    #[test]
-    fn reject_venv_that_does_not_exist() {
-        let system = TestSystem::default();
-        assert!(matches!(
-            VirtualEnvironment::new("/.venv", SysPrefixPathOrigin::VirtualEnvVar, &system),
-            Err(SitePackagesDiscoveryError::VenvDirCanonicalizationError(..))
-        ));
-    }
-
-    #[test]
-    fn reject_venv_that_is_not_a_directory() {
-        let system = TestSystem::default();
-        system
-            .memory_file_system()
-            .write_file_all("/.venv", "")
-            .unwrap();
-        assert!(matches!(
-            VirtualEnvironment::new("/.venv", SysPrefixPathOrigin::VirtualEnvVar, &system),
-            Err(SitePackagesDiscoveryError::VenvDirIsNotADirectory(..))
-        ));
-    }
-
-    #[test]
-    fn reject_venv_with_no_pyvenv_cfg_file() {
-        let system = TestSystem::default();
-        system
-            .memory_file_system()
-            .create_directory_all("/.venv")
-            .unwrap();
-        assert!(matches!(
-            VirtualEnvironment::new("/.venv", SysPrefixPathOrigin::VirtualEnvVar, &system),
-            Err(SitePackagesDiscoveryError::NoPyvenvCfgFile(
-                SysPrefixPathOrigin::VirtualEnvVar,
-                _
-            ))
-        ));
-    }
-
-    #[test]
-    fn parsing_pyvenv_cfg_with_too_many_equals() {
-        let system = TestSystem::default();
-        let memory_fs = system.memory_file_system();
-        let pyvenv_cfg_path = SystemPathBuf::from("/.venv/pyvenv.cfg");
-        memory_fs
-            .write_file_all(&pyvenv_cfg_path, "home = bar = /.venv/bin")
-            .unwrap();
-        let venv_result =
-            VirtualEnvironment::new("/.venv", SysPrefixPathOrigin::VirtualEnvVar, &system);
-        assert!(matches!(
-            venv_result,
-            Err(SitePackagesDiscoveryError::PyvenvCfgParseError(
-                path,
-                PyvenvCfgParseErrorKind::TooManyEquals { line_number }
-            ))
-            if path == pyvenv_cfg_path && Some(line_number) == NonZeroUsize::new(1)
-        ));
-    }
-
-    #[test]
-    fn parsing_pyvenv_cfg_with_key_but_no_value_fails() {
-        let system = TestSystem::default();
-        let memory_fs = system.memory_file_system();
-        let pyvenv_cfg_path = SystemPathBuf::from("/.venv/pyvenv.cfg");
-        memory_fs
-            .write_file_all(&pyvenv_cfg_path, "home =")
-            .unwrap();
-        let venv_result =
-            VirtualEnvironment::new("/.venv", SysPrefixPathOrigin::VirtualEnvVar, &system);
-        assert!(matches!(
-            venv_result,
-            Err(SitePackagesDiscoveryError::PyvenvCfgParseError(
-                path,
-                PyvenvCfgParseErrorKind::MalformedKeyValuePair { line_number }
-            ))
-            if path == pyvenv_cfg_path && Some(line_number) == NonZeroUsize::new(1)
-        ));
-    }
-
-    #[test]
-    fn parsing_pyvenv_cfg_with_value_but_no_key_fails() {
-        let system = TestSystem::default();
-        let memory_fs = system.memory_file_system();
-        let pyvenv_cfg_path = SystemPathBuf::from("/.venv/pyvenv.cfg");
-        memory_fs
-            .write_file_all(&pyvenv_cfg_path, "= whatever")
-            .unwrap();
-        let venv_result =
-            VirtualEnvironment::new("/.venv", SysPrefixPathOrigin::VirtualEnvVar, &system);
-        assert!(matches!(
-            venv_result,
-            Err(SitePackagesDiscoveryError::PyvenvCfgParseError(
-                path,
-                PyvenvCfgParseErrorKind::MalformedKeyValuePair { line_number }
-            ))
-            if path == pyvenv_cfg_path && Some(line_number) == NonZeroUsize::new(1)
-        ));
-    }
-
-    #[test]
-    fn parsing_pyvenv_cfg_with_no_home_key_fails() {
-        let system = TestSystem::default();
-        let memory_fs = system.memory_file_system();
-        let pyvenv_cfg_path = SystemPathBuf::from("/.venv/pyvenv.cfg");
-        memory_fs.write_file_all(&pyvenv_cfg_path, "").unwrap();
-        let venv_result =
-            VirtualEnvironment::new("/.venv", SysPrefixPathOrigin::VirtualEnvVar, &system);
-        assert!(matches!(
-            venv_result,
-            Err(SitePackagesDiscoveryError::PyvenvCfgParseError(
-                path,
-                PyvenvCfgParseErrorKind::NoHomeKey
-            ))
-            if path == pyvenv_cfg_path
-        ));
-    }
-
-    #[test]
-    fn parsing_pyvenv_cfg_with_invalid_home_key_fails() {
-        let system = TestSystem::default();
-        let memory_fs = system.memory_file_system();
-        let pyvenv_cfg_path = SystemPathBuf::from("/.venv/pyvenv.cfg");
-        memory_fs
-            .write_file_all(&pyvenv_cfg_path, "home = foo")
-            .unwrap();
-        let venv_result =
-            VirtualEnvironment::new("/.venv", SysPrefixPathOrigin::VirtualEnvVar, &system);
-        assert!(matches!(
-            venv_result,
-            Err(SitePackagesDiscoveryError::PyvenvCfgParseError(
-                path,
-                PyvenvCfgParseErrorKind::InvalidHomeValue(_)
-            ))
-            if path == pyvenv_cfg_path
-        ));
-    }
-}

crates/red_knot_python_semantic/src/types/call/arguments.rs

@@ -1,128 +0,0 @@
-use std::collections::VecDeque;
-use std::ops::{Deref, DerefMut};
-
-use super::Type;
-
-/// Arguments for a single call, in source order.
-#[derive(Clone, Debug, Default)]
-pub(crate) struct CallArguments<'a>(VecDeque<Argument<'a>>);
-
-impl<'a> CallArguments<'a> {
-    /// Invoke a function with an optional extra synthetic argument (for a `self` or `cls`
-    /// parameter) prepended to the front of this argument list. (If `bound_self` is none, the
-    /// function is invoked with the unmodified argument list.)
-    pub(crate) fn with_self<F, R>(&mut self, bound_self: Option<Type<'_>>, f: F) -> R
-    where
-        F: FnOnce(&mut Self) -> R,
-    {
-        if bound_self.is_some() {
-            self.0.push_front(Argument::Synthetic);
-        }
-        let result = f(self);
-        if bound_self.is_some() {
-            self.0.pop_front();
-        }
-        result
-    }
-
-    pub(crate) fn len(&self) -> usize {
-        self.0.len()
-    }
-
-    pub(crate) fn iter(&self) -> impl Iterator<Item = Argument<'a>> + '_ {
-        self.0.iter().copied()
-    }
-}
-
-impl<'a> FromIterator<Argument<'a>> for CallArguments<'a> {
-    fn from_iter<T: IntoIterator<Item = Argument<'a>>>(iter: T) -> Self {
-        Self(iter.into_iter().collect())
-    }
-}
-
-#[derive(Clone, Copy, Debug)]
-pub(crate) enum Argument<'a> {
-    /// The synthetic `self` or `cls` argument, which doesn't appear explicitly at the call site.
-    Synthetic,
-    /// A positional argument.
-    Positional,
-    /// A starred positional argument (e.g. `*args`).
-    Variadic,
-    /// A keyword argument (e.g. `a=1`).
-    Keyword(&'a str),
-    /// The double-starred keywords argument (e.g. `**kwargs`).
-    Keywords,
-}
-
-/// Arguments for a single call, in source order, along with inferred types for each argument.
-pub(crate) struct CallArgumentTypes<'a, 'db> {
-    arguments: CallArguments<'a>,
-    types: VecDeque<Type<'db>>,
-}
-
-impl<'a, 'db> CallArgumentTypes<'a, 'db> {
-    /// Create a [`CallArgumentTypes`] with no arguments.
-    pub(crate) fn none() -> Self {
-        let arguments = CallArguments::default();
-        let types = VecDeque::default();
-        Self { arguments, types }
-    }
-
-    /// Create a [`CallArgumentTypes`] from an iterator over non-variadic positional argument
-    /// types.
-    pub(crate) fn positional(positional_tys: impl IntoIterator<Item = Type<'db>>) -> Self {
-        let types: VecDeque<_> = positional_tys.into_iter().collect();
-        let arguments = CallArguments(vec![Argument::Positional; types.len()].into());
-        Self { arguments, types }
-    }
-
-    /// Create a new [`CallArgumentTypes`] to store the inferred types of the arguments in a
-    /// [`CallArguments`]. Uses the provided callback to infer each argument type.
-    pub(crate) fn new<F>(arguments: CallArguments<'a>, mut f: F) -> Self
-    where
-        F: FnMut(usize, Argument<'a>) -> Type<'db>,
-    {
-        let types = arguments
-            .iter()
-            .enumerate()
-            .map(|(idx, argument)| f(idx, argument))
-            .collect();
-        Self { arguments, types }
-    }
-
-    /// Invoke a function with an optional extra synthetic argument (for a `self` or `cls`
-    /// parameter) prepended to the front of this argument list. (If `bound_self` is none, the
-    /// function is invoked with the unmodified argument list.)
-    pub(crate) fn with_self<F, R>(&mut self, bound_self: Option<Type<'db>>, f: F) -> R
-    where
-        F: FnOnce(&mut Self) -> R,
-    {
-        if let Some(bound_self) = bound_self {
-            self.arguments.0.push_front(Argument::Synthetic);
-            self.types.push_front(bound_self);
-        }
-        let result = f(self);
-        if bound_self.is_some() {
-            self.arguments.0.pop_front();
-            self.types.pop_front();
-        }
-        result
-    }
-
-    pub(crate) fn iter(&self) -> impl Iterator<Item = (Argument<'a>, Type<'db>)> + '_ {
-        self.arguments.iter().zip(self.types.iter().copied())
-    }
-}
-
-impl<'a> Deref for CallArgumentTypes<'a, '_> {
-    type Target = CallArguments<'a>;
-    fn deref(&self) -> &CallArguments<'a> {
-        &self.arguments
-    }
-}
-
-impl<'a> DerefMut for CallArgumentTypes<'a, '_> {
-    fn deref_mut(&mut self) -> &mut CallArguments<'a> {
-        &mut self.arguments
-    }
-}

crates/red_knot_python_semantic/src/types/class_base.rs

@@ -1,258 +0,0 @@
-use crate::types::{
-    todo_type, ClassType, DynamicType, KnownClass, KnownInstanceType, MroIterator, Type,
-};
-use crate::Db;
-
-/// Enumeration of the possible kinds of types we allow in class bases.
-///
-/// This is much more limited than the [`Type`] enum: all types that would be invalid to have as a
-/// class base are transformed into [`ClassBase::unknown()`]
-///
-/// Note that a non-specialized generic class _cannot_ be a class base. When we see a
-/// non-specialized generic class in any type expression (including the list of base classes), we
-/// automatically construct the default specialization for that class.
-#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq, salsa::Update)]
-pub enum ClassBase<'db> {
-    Dynamic(DynamicType),
-    Class(ClassType<'db>),
-    /// Although `Protocol` is not a class in typeshed's stubs, it is at runtime,
-    /// and can appear in the MRO of a class.
-    Protocol,
-    /// Bare `Generic` cannot be subclassed directly in user code,
-    /// but nonetheless appears in the MRO of classes that inherit from `Generic[T]`,
-    /// `Protocol[T]`, or bare `Protocol`.
-    Generic,
-}
-
-impl<'db> ClassBase<'db> {
-    pub(crate) const fn any() -> Self {
-        Self::Dynamic(DynamicType::Any)
-    }
-
-    pub(crate) const fn unknown() -> Self {
-        Self::Dynamic(DynamicType::Unknown)
-    }
-
-    pub(crate) fn display(self, db: &'db dyn Db) -> impl std::fmt::Display + 'db {
-        struct Display<'db> {
-            base: ClassBase<'db>,
-            db: &'db dyn Db,
-        }
-
-        impl std::fmt::Display for Display<'_> {
-            fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-                match self.base {
-                    ClassBase::Dynamic(dynamic) => dynamic.fmt(f),
-                    ClassBase::Class(class @ ClassType::NonGeneric(_)) => {
-                        write!(f, "<class '{}'>", class.name(self.db))
-                    }
-                    ClassBase::Class(ClassType::Generic(alias)) => {
-                        write!(f, "<class '{}'>", alias.display(self.db))
-                    }
-                    ClassBase::Protocol => f.write_str("typing.Protocol"),
-                    ClassBase::Generic => f.write_str("typing.Generic"),
-                }
-            }
-        }
-
-        Display { base: self, db }
-    }
-
-    /// Return a `ClassBase` representing the class `builtins.object`
-    pub(super) fn object(db: &'db dyn Db) -> Self {
-        KnownClass::Object
-            .to_class_literal(db)
-            .into_class_type()
-            .map_or(Self::unknown(), Self::Class)
-    }
-
-    /// Attempt to resolve `ty` into a `ClassBase`.
-    ///
-    /// Return `None` if `ty` is not an acceptable type for a class base.
-    pub(super) fn try_from_type(db: &'db dyn Db, ty: Type<'db>) -> Option<Self> {
-        match ty {
-            Type::Dynamic(dynamic) => Some(Self::Dynamic(dynamic)),
-            Type::ClassLiteral(literal) => Some(if literal.is_known(db, KnownClass::Any) {
-                Self::Dynamic(DynamicType::Any)
-            } else {
-                Self::Class(literal.default_specialization(db))
-            }),
-            Type::GenericAlias(generic) => Some(Self::Class(ClassType::Generic(generic))),
-            Type::Union(_) => None, // TODO -- forces consideration of multiple possible MROs?
-            Type::Intersection(_) => None, // TODO -- probably incorrect?
-            Type::Instance(_) => None, // TODO -- handle `__mro_entries__`?
-            Type::PropertyInstance(_) => None,
-            Type::Never
-            | Type::BooleanLiteral(_)
-            | Type::FunctionLiteral(_)
-            | Type::Callable(..)
-            | Type::BoundMethod(_)
-            | Type::MethodWrapper(_)
-            | Type::WrapperDescriptor(_)
-            | Type::DataclassDecorator(_)
-            | Type::BytesLiteral(_)
-            | Type::IntLiteral(_)
-            | Type::StringLiteral(_)
-            | Type::LiteralString
-            | Type::Tuple(_)
-            | Type::SliceLiteral(_)
-            | Type::ModuleLiteral(_)
-            | Type::SubclassOf(_)
-            | Type::TypeVar(_)
-            | Type::BoundSuper(_)
-            | Type::AlwaysFalsy
-            | Type::AlwaysTruthy => None,
-            Type::KnownInstance(known_instance) => match known_instance {
-                KnownInstanceType::TypeVar(_)
-                | KnownInstanceType::TypeAliasType(_)
-                | KnownInstanceType::Annotated
-                | KnownInstanceType::Literal
-                | KnownInstanceType::LiteralString
-                | KnownInstanceType::Union
-                | KnownInstanceType::NoReturn
-                | KnownInstanceType::Never
-                | KnownInstanceType::Final
-                | KnownInstanceType::NotRequired
-                | KnownInstanceType::TypeGuard
-                | KnownInstanceType::TypeIs
-                | KnownInstanceType::TypingSelf
-                | KnownInstanceType::Unpack
-                | KnownInstanceType::ClassVar
-                | KnownInstanceType::Concatenate
-                | KnownInstanceType::Required
-                | KnownInstanceType::TypeAlias
-                | KnownInstanceType::ReadOnly
-                | KnownInstanceType::Optional
-                | KnownInstanceType::Not
-                | KnownInstanceType::Intersection
-                | KnownInstanceType::TypeOf
-                | KnownInstanceType::CallableTypeOf
-                | KnownInstanceType::AlwaysTruthy
-                | KnownInstanceType::AlwaysFalsy => None,
-                KnownInstanceType::Unknown => Some(Self::unknown()),
-                KnownInstanceType::Any => Some(Self::any()),
-                // TODO: Classes inheriting from `typing.Type` et al. also have `Generic` in their MRO
-                KnownInstanceType::Dict => {
-                    Self::try_from_type(db, KnownClass::Dict.to_class_literal(db))
-                }
-                KnownInstanceType::List => {
-                    Self::try_from_type(db, KnownClass::List.to_class_literal(db))
-                }
-                KnownInstanceType::Type => {
-                    Self::try_from_type(db, KnownClass::Type.to_class_literal(db))
-                }
-                KnownInstanceType::Tuple => {
-                    Self::try_from_type(db, KnownClass::Tuple.to_class_literal(db))
-                }
-                KnownInstanceType::Set => {
-                    Self::try_from_type(db, KnownClass::Set.to_class_literal(db))
-                }
-                KnownInstanceType::FrozenSet => {
-                    Self::try_from_type(db, KnownClass::FrozenSet.to_class_literal(db))
-                }
-                KnownInstanceType::ChainMap => {
-                    Self::try_from_type(db, KnownClass::ChainMap.to_class_literal(db))
-                }
-                KnownInstanceType::Counter => {
-                    Self::try_from_type(db, KnownClass::Counter.to_class_literal(db))
-                }
-                KnownInstanceType::DefaultDict => {
-                    Self::try_from_type(db, KnownClass::DefaultDict.to_class_literal(db))
-                }
-                KnownInstanceType::Deque => {
-                    Self::try_from_type(db, KnownClass::Deque.to_class_literal(db))
-                }
-                KnownInstanceType::OrderedDict => {
-                    Self::try_from_type(db, KnownClass::OrderedDict.to_class_literal(db))
-                }
-                KnownInstanceType::Callable => {
-                    Self::try_from_type(db, todo_type!("Support for Callable as a base class"))
-                }
-                KnownInstanceType::Protocol => Some(ClassBase::Protocol),
-                KnownInstanceType::Generic => Some(ClassBase::Generic),
-            },
-        }
-    }
-
-    pub(super) fn into_class(self) -> Option<ClassType<'db>> {
-        match self {
-            Self::Class(class) => Some(class),
-            Self::Dynamic(_) | Self::Generic | Self::Protocol => None,
-        }
-    }
-
-    /// Iterate over the MRO of this base
-    pub(super) fn mro(self, db: &'db dyn Db) -> impl Iterator<Item = ClassBase<'db>> {
-        match self {
-            ClassBase::Protocol => ClassBaseMroIterator::length_3(db, self, ClassBase::Generic),
-            ClassBase::Dynamic(DynamicType::SubscriptedProtocol) => ClassBaseMroIterator::length_3(
-                db,
-                self,
-                ClassBase::Dynamic(DynamicType::SubscriptedGeneric),
-            ),
-            ClassBase::Dynamic(_) | ClassBase::Generic => ClassBaseMroIterator::length_2(db, self),
-            ClassBase::Class(class) => ClassBaseMroIterator::from_class(db, class),
-        }
-    }
-}
-
-impl<'db> From<ClassType<'db>> for ClassBase<'db> {
-    fn from(value: ClassType<'db>) -> Self {
-        ClassBase::Class(value)
-    }
-}
-
-impl<'db> From<ClassBase<'db>> for Type<'db> {
-    fn from(value: ClassBase<'db>) -> Self {
-        match value {
-            ClassBase::Dynamic(dynamic) => Type::Dynamic(dynamic),
-            ClassBase::Class(class) => class.into(),
-            ClassBase::Protocol => Type::KnownInstance(KnownInstanceType::Protocol),
-            ClassBase::Generic => Type::KnownInstance(KnownInstanceType::Generic),
-        }
-    }
-}
-
-impl<'db> From<&ClassBase<'db>> for Type<'db> {
-    fn from(value: &ClassBase<'db>) -> Self {
-        Self::from(*value)
-    }
-}
-
-/// An iterator over the MRO of a class base.
-enum ClassBaseMroIterator<'db> {
-    Length2(core::array::IntoIter<ClassBase<'db>, 2>),
-    Length3(core::array::IntoIter<ClassBase<'db>, 3>),
-    FromClass(MroIterator<'db>),
-}
-
-impl<'db> ClassBaseMroIterator<'db> {
-    /// Iterate over an MRO of length 2 that consists of `first_element` and then `object`.
-    fn length_2(db: &'db dyn Db, first_element: ClassBase<'db>) -> Self {
-        ClassBaseMroIterator::Length2([first_element, ClassBase::object(db)].into_iter())
-    }
-
-    /// Iterate over an MRO of length 3 that consists of `first_element`, then `second_element`, then `object`.
-    fn length_3(db: &'db dyn Db, element_1: ClassBase<'db>, element_2: ClassBase<'db>) -> Self {
-        ClassBaseMroIterator::Length3([element_1, element_2, ClassBase::object(db)].into_iter())
-    }
-
-    /// Iterate over the MRO of an arbitrary class. The MRO may be of any length.
-    fn from_class(db: &'db dyn Db, class: ClassType<'db>) -> Self {
-        ClassBaseMroIterator::FromClass(class.iter_mro(db))
-    }
-}
-
-impl<'db> Iterator for ClassBaseMroIterator<'db> {
-    type Item = ClassBase<'db>;
-
-    fn next(&mut self) -> Option<Self::Item> {
-        match self {
-            Self::Length2(iter) => iter.next(),
-            Self::Length3(iter) => iter.next(),
-            Self::FromClass(iter) => iter.next(),
-        }
-    }
-}
-
-impl std::iter::FusedIterator for ClassBaseMroIterator<'_> {}

crates/red_knot_python_semantic/src/types/generics.rs

@@ -1,407 +0,0 @@
-use ruff_python_ast as ast;
-use rustc_hash::FxHashMap;
-
-use crate::semantic_index::SemanticIndex;
-use crate::types::signatures::{Parameter, Parameters, Signature};
-use crate::types::{
-    declaration_type, KnownInstanceType, Type, TypeVarBoundOrConstraints, TypeVarInstance,
-    UnionBuilder, UnionType,
-};
-use crate::Db;
-
-/// A list of formal type variables for a generic function, class, or type alias.
-///
-/// TODO: Handle nested generic contexts better, with actual parent links to the lexically
-/// containing context.
-#[salsa::interned(debug)]
-pub struct GenericContext<'db> {
-    #[return_ref]
-    pub(crate) variables: Box<[TypeVarInstance<'db>]>,
-}
-
-impl<'db> GenericContext<'db> {
-    pub(crate) fn from_type_params(
-        db: &'db dyn Db,
-        index: &'db SemanticIndex<'db>,
-        type_params_node: &ast::TypeParams,
-    ) -> Self {
-        let variables: Box<[_]> = type_params_node
-            .iter()
-            .filter_map(|type_param| Self::variable_from_type_param(db, index, type_param))
-            .collect();
-        Self::new(db, variables)
-    }
-
-    fn variable_from_type_param(
-        db: &'db dyn Db,
-        index: &'db SemanticIndex<'db>,
-        type_param_node: &ast::TypeParam,
-    ) -> Option<TypeVarInstance<'db>> {
-        match type_param_node {
-            ast::TypeParam::TypeVar(node) => {
-                let definition = index.expect_single_definition(node);
-                let Type::KnownInstance(KnownInstanceType::TypeVar(typevar)) =
-                    declaration_type(db, definition).inner_type()
-                else {
-                    panic!("typevar should be inferred as a TypeVarInstance");
-                };
-                Some(typevar)
-            }
-            // TODO: Support these!
-            ast::TypeParam::ParamSpec(_) => None,
-            ast::TypeParam::TypeVarTuple(_) => None,
-        }
-    }
-
-    pub(crate) fn signature(self, db: &'db dyn Db) -> Signature<'db> {
-        let parameters = Parameters::new(
-            self.variables(db)
-                .iter()
-                .map(|typevar| Self::parameter_from_typevar(db, *typevar)),
-        );
-        Signature::new(parameters, None)
-    }
-
-    fn parameter_from_typevar(db: &'db dyn Db, typevar: TypeVarInstance<'db>) -> Parameter<'db> {
-        let mut parameter = Parameter::positional_only(Some(typevar.name(db).clone()));
-        match typevar.bound_or_constraints(db) {
-            Some(TypeVarBoundOrConstraints::UpperBound(bound)) => {
-                // TODO: This should be a type form.
-                parameter = parameter.with_annotated_type(bound);
-            }
-            Some(TypeVarBoundOrConstraints::Constraints(constraints)) => {
-                // TODO: This should be a new type variant where only these exact types are
-                // assignable, and not subclasses of them, nor a union of them.
-                parameter = parameter
-                    .with_annotated_type(UnionType::from_elements(db, constraints.iter(db)));
-            }
-            None => {}
-        }
-        parameter
-    }
-
-    pub(crate) fn default_specialization(self, db: &'db dyn Db) -> Specialization<'db> {
-        let types = self
-            .variables(db)
-            .iter()
-            .map(|typevar| typevar.default_ty(db).unwrap_or(Type::unknown()))
-            .collect();
-        self.specialize(db, types)
-    }
-
-    pub(crate) fn identity_specialization(self, db: &'db dyn Db) -> Specialization<'db> {
-        let types = self
-            .variables(db)
-            .iter()
-            .map(|typevar| Type::TypeVar(*typevar))
-            .collect();
-        self.specialize(db, types)
-    }
-
-    pub(crate) fn unknown_specialization(self, db: &'db dyn Db) -> Specialization<'db> {
-        let types = vec![Type::unknown(); self.variables(db).len()];
-        self.specialize(db, types.into())
-    }
-
-    pub(crate) fn specialize(
-        self,
-        db: &'db dyn Db,
-        types: Box<[Type<'db>]>,
-    ) -> Specialization<'db> {
-        Specialization::new(db, self, types)
-    }
-}
-
-/// An assignment of a specific type to each type variable in a generic scope.
-///
-/// TODO: Handle nested specializations better, with actual parent links to the specialization of
-/// the lexically containing context.
-#[salsa::interned(debug)]
-pub struct Specialization<'db> {
-    pub(crate) generic_context: GenericContext<'db>,
-    #[return_ref]
-    pub(crate) types: Box<[Type<'db>]>,
-}
-
-impl<'db> Specialization<'db> {
-    /// Applies a specialization to this specialization. This is used, for instance, when a generic
-    /// class inherits from a generic alias:
-    ///
-    /// ```py
-    /// class A[T]: ...
-    /// class B[U](A[U]): ...
-    /// ```
-    ///
-    /// `B` is a generic class, whose MRO includes the generic alias `A[U]`, which specializes `A`
-    /// with the specialization `{T: U}`. If `B` is specialized to `B[int]`, with specialization
-    /// `{U: int}`, we can apply the second specialization to the first, resulting in `T: int`.
-    /// That lets us produce the generic alias `A[int]`, which is the corresponding entry in the
-    /// MRO of `B[int]`.
-    pub(crate) fn apply_specialization(self, db: &'db dyn Db, other: Specialization<'db>) -> Self {
-        let types: Box<[_]> = self
-            .types(db)
-            .into_iter()
-            .map(|ty| ty.apply_specialization(db, other))
-            .collect();
-        Specialization::new(db, self.generic_context(db), types)
-    }
-
-    /// Combines two specializations of the same generic context. If either specialization maps a
-    /// typevar to `Type::Unknown`, the other specialization's mapping is used. If both map the
-    /// typevar to a known type, those types are unioned together.
-    ///
-    /// Panics if the two specializations are not for the same generic context.
-    pub(crate) fn combine(self, db: &'db dyn Db, other: Self) -> Self {
-        let generic_context = self.generic_context(db);
-        assert!(other.generic_context(db) == generic_context);
-        let types: Box<[_]> = self
-            .types(db)
-            .into_iter()
-            .zip(other.types(db))
-            .map(|(self_type, other_type)| match (self_type, other_type) {
-                (unknown, known) | (known, unknown) if unknown.is_unknown() => *known,
-                _ => UnionType::from_elements(db, [self_type, other_type]),
-            })
-            .collect();
-        Specialization::new(db, self.generic_context(db), types)
-    }
-
-    pub(crate) fn normalized(self, db: &'db dyn Db) -> Self {
-        let types: Box<[_]> = self.types(db).iter().map(|ty| ty.normalized(db)).collect();
-        Self::new(db, self.generic_context(db), types)
-    }
-
-    /// Returns the type that a typevar is specialized to, or None if the typevar isn't part of
-    /// this specialization.
-    pub(crate) fn get(self, db: &'db dyn Db, typevar: TypeVarInstance<'db>) -> Option<Type<'db>> {
-        self.generic_context(db)
-            .variables(db)
-            .into_iter()
-            .zip(self.types(db))
-            .find(|(var, _)| **var == typevar)
-            .map(|(_, ty)| *ty)
-    }
-
-    pub(crate) fn is_subtype_of(self, db: &'db dyn Db, other: Specialization<'db>) -> bool {
-        let generic_context = self.generic_context(db);
-        if generic_context != other.generic_context(db) {
-            return false;
-        }
-
-        for ((_typevar, self_type), other_type) in (generic_context.variables(db).into_iter())
-            .zip(self.types(db))
-            .zip(other.types(db))
-        {
-            if matches!(self_type, Type::Dynamic(_)) || matches!(other_type, Type::Dynamic(_)) {
-                return false;
-            }
-
-            // TODO: We currently treat all typevars as invariant. Once we track the actual
-            // variance of each typevar, these checks should change:
-            //   - covariant: verify that self_type <: other_type
-            //   - contravariant: verify that other_type <: self_type
-            //   - invariant: verify that self_type == other_type
-            //   - bivariant: skip, can't make subtyping false
-            if !self_type.is_equivalent_to(db, *other_type) {
-                return false;
-            }
-        }
-
-        true
-    }
-
-    pub(crate) fn is_equivalent_to(self, db: &'db dyn Db, other: Specialization<'db>) -> bool {
-        let generic_context = self.generic_context(db);
-        if generic_context != other.generic_context(db) {
-            return false;
-        }
-
-        for ((_typevar, self_type), other_type) in (generic_context.variables(db).into_iter())
-            .zip(self.types(db))
-            .zip(other.types(db))
-        {
-            if matches!(self_type, Type::Dynamic(_)) || matches!(other_type, Type::Dynamic(_)) {
-                return false;
-            }
-
-            // TODO: We currently treat all typevars as invariant. Once we track the actual
-            // variance of each typevar, these checks should change:
-            //   - covariant: verify that self_type == other_type
-            //   - contravariant: verify that other_type == self_type
-            //   - invariant: verify that self_type == other_type
-            //   - bivariant: skip, can't make equivalence false
-            if !self_type.is_equivalent_to(db, *other_type) {
-                return false;
-            }
-        }
-
-        true
-    }
-
-    pub(crate) fn is_assignable_to(self, db: &'db dyn Db, other: Specialization<'db>) -> bool {
-        let generic_context = self.generic_context(db);
-        if generic_context != other.generic_context(db) {
-            return false;
-        }
-
-        for ((_typevar, self_type), other_type) in (generic_context.variables(db).into_iter())
-            .zip(self.types(db))
-            .zip(other.types(db))
-        {
-            if matches!(self_type, Type::Dynamic(_)) || matches!(other_type, Type::Dynamic(_)) {
-                continue;
-            }
-
-            // TODO: We currently treat all typevars as invariant. Once we track the actual
-            // variance of each typevar, these checks should change:
-            //   - covariant: verify that self_type <: other_type
-            //   - contravariant: verify that other_type <: self_type
-            //   - invariant: verify that self_type == other_type
-            //   - bivariant: skip, can't make assignability false
-            if !self_type.is_gradual_equivalent_to(db, *other_type) {
-                return false;
-            }
-        }
-
-        true
-    }
-
-    pub(crate) fn is_gradual_equivalent_to(
-        self,
-        db: &'db dyn Db,
-        other: Specialization<'db>,
-    ) -> bool {
-        let generic_context = self.generic_context(db);
-        if generic_context != other.generic_context(db) {
-            return false;
-        }
-
-        for ((_typevar, self_type), other_type) in (generic_context.variables(db).into_iter())
-            .zip(self.types(db))
-            .zip(other.types(db))
-        {
-            // TODO: We currently treat all typevars as invariant. Once we track the actual
-            // variance of each typevar, these checks should change:
-            //   - covariant: verify that self_type == other_type
-            //   - contravariant: verify that other_type == self_type
-            //   - invariant: verify that self_type == other_type
-            //   - bivariant: skip, can't make equivalence false
-            if !self_type.is_gradual_equivalent_to(db, *other_type) {
-                return false;
-            }
-        }
-
-        true
-    }
-}
-
-/// Performs type inference between parameter annotations and argument types, producing a
-/// specialization of a generic function.
-pub(crate) struct SpecializationBuilder<'db> {
-    db: &'db dyn Db,
-    generic_context: GenericContext<'db>,
-    types: FxHashMap<TypeVarInstance<'db>, UnionBuilder<'db>>,
-}
-
-impl<'db> SpecializationBuilder<'db> {
-    pub(crate) fn new(db: &'db dyn Db, generic_context: GenericContext<'db>) -> Self {
-        Self {
-            db,
-            generic_context,
-            types: FxHashMap::default(),
-        }
-    }
-
-    pub(crate) fn build(mut self) -> Specialization<'db> {
-        let types: Box<[_]> = self
-            .generic_context
-            .variables(self.db)
-            .iter()
-            .map(|variable| {
-                self.types
-                    .remove(variable)
-                    .map(UnionBuilder::build)
-                    .unwrap_or(variable.default_ty(self.db).unwrap_or(Type::unknown()))
-            })
-            .collect();
-        Specialization::new(self.db, self.generic_context, types)
-    }
-
-    fn add_type_mapping(&mut self, typevar: TypeVarInstance<'db>, ty: Type<'db>) {
-        let builder = self
-            .types
-            .entry(typevar)
-            .or_insert_with(|| UnionBuilder::new(self.db));
-        builder.add_in_place(ty);
-    }
-
-    pub(crate) fn infer(&mut self, formal: Type<'db>, actual: Type<'db>) {
-        // If the actual type is already assignable to the formal type, then return without adding
-        // any new type mappings. (Note that if the formal type contains any typevars, this check
-        // will fail, since no non-typevar types are assignable to a typevar.)
-        //
-        // In particular, this handles a case like
-        //
-        // ```py
-        // def f[T](t: T | None): ...
-        //
-        // f(None)
-        // ```
-        //
-        // without specializing `T` to `None`.
-        if actual.is_assignable_to(self.db, formal) {
-            return;
-        }
-
-        match (formal, actual) {
-            (Type::TypeVar(typevar), _) => self.add_type_mapping(typevar, actual),
-
-            (Type::Tuple(formal_tuple), Type::Tuple(actual_tuple)) => {
-                let formal_elements = formal_tuple.elements(self.db);
-                let actual_elements = actual_tuple.elements(self.db);
-                if formal_elements.len() == actual_elements.len() {
-                    for (formal_element, actual_element) in
-                        formal_elements.iter().zip(actual_elements)
-                    {
-                        self.infer(*formal_element, *actual_element);
-                    }
-                }
-            }
-
-            (Type::Union(formal), _) => {
-                // TODO: We haven't implemented a full unification solver yet. If typevars appear
-                // in multiple union elements, we ideally want to express that _only one_ of them
-                // needs to match, and that we should infer the smallest type mapping that allows
-                // that.
-                //
-                // For now, we punt on handling multiple typevar elements. Instead, if _precisely
-                // one_ union element _is_ a typevar (not _contains_ a typevar), then we go ahead
-                // and add a mapping between that typevar and the actual type. (Note that we've
-                // already handled above the case where the actual is assignable to a _non-typevar_
-                // union element.)
-                let mut typevars = formal.iter(self.db).filter_map(|ty| match ty {
-                    Type::TypeVar(typevar) => Some(*typevar),
-                    _ => None,
-                });
-                let typevar = typevars.next();
-                let additional_typevars = typevars.next();
-                if let (Some(typevar), None) = (typevar, additional_typevars) {
-                    self.add_type_mapping(typevar, actual);
-                }
-            }
-
-            (Type::Intersection(formal), _) => {
-                // The actual type must be assignable to every (positive) element of the
-                // formal intersection, so we must infer type mappings for each of them. (The
-                // actual type must also be disjoint from every negative element of the
-                // intersection, but that doesn't help us infer any type mappings.)
-                for positive in formal.iter_positive(self.db) {
-                    self.infer(positive, actual);
-                }
-            }
-
-            // TODO: Add more forms that we can structurally induct into: type[C], callables
-            _ => {}
-        }
-    }
-}

crates/red_knot_python_semantic/src/util/mod.rs

@@ -1 +0,0 @@
-pub(crate) mod subscript;

crates/red_knot_python_semantic/src/util/subscript.rs

@@ -1,502 +0,0 @@
-//! This module provides utility functions for indexing (`PyIndex`) and slicing
-//! operations (`PySlice`) on iterators, following the semantics of equivalent
-//! operations in Python.
-
-use itertools::Either;
-
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub(crate) struct OutOfBoundsError;
-
-pub(crate) trait PyIndex {
-    type Item;
-
-    fn py_index(&mut self, index: i32) -> Result<Self::Item, OutOfBoundsError>;
-}
-
-fn from_nonnegative_i32(index: i32) -> usize {
-    static_assertions::const_assert!(usize::BITS >= 32);
-    debug_assert!(index >= 0);
-
-    usize::try_from(index)
-        .expect("Should only ever pass a positive integer to `from_nonnegative_i32`")
-}
-
-fn from_negative_i32(index: i32) -> usize {
-    static_assertions::const_assert!(usize::BITS >= 32);
-
-    index.checked_neg().map(from_nonnegative_i32).unwrap_or({
-        // 'checked_neg' only fails for i32::MIN. We can not
-        // represent -i32::MIN as a i32, but we can represent
-        // it as a usize, since usize is at least 32 bits.
-        from_nonnegative_i32(i32::MAX) + 1
-    })
-}
-
-#[derive(Debug, Clone, Copy, PartialEq, PartialOrd)]
-enum Position {
-    BeforeStart,
-    AtIndex(usize),
-    AfterEnd,
-}
-
-enum Nth {
-    FromStart(usize),
-    FromEnd(usize),
-}
-
-impl Nth {
-    fn from_index(index: i32) -> Self {
-        if index >= 0 {
-            Nth::FromStart(from_nonnegative_i32(index))
-        } else {
-            Nth::FromEnd(from_negative_i32(index) - 1)
-        }
-    }
-
-    fn to_position(&self, len: usize) -> Position {
-        debug_assert!(len > 0);
-
-        match self {
-            Nth::FromStart(nth) => {
-                if *nth < len {
-                    Position::AtIndex(*nth)
-                } else {
-                    Position::AfterEnd
-                }
-            }
-            Nth::FromEnd(nth_rev) => {
-                if *nth_rev < len {
-                    Position::AtIndex(len - 1 - *nth_rev)
-                } else {
-                    Position::BeforeStart
-                }
-            }
-        }
-    }
-}
-
-impl<I, T> PyIndex for T
-where
-    T: DoubleEndedIterator<Item = I>,
-{
-    type Item = I;
-
-    fn py_index(&mut self, index: i32) -> Result<I, OutOfBoundsError> {
-        match Nth::from_index(index) {
-            Nth::FromStart(nth) => self.nth(nth).ok_or(OutOfBoundsError),
-            Nth::FromEnd(nth_rev) => self.nth_back(nth_rev).ok_or(OutOfBoundsError),
-        }
-    }
-}
-
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub(crate) struct StepSizeZeroError;
-
-pub(crate) trait PySlice {
-    type Item;
-
-    fn py_slice(
-        &self,
-        start: Option<i32>,
-        stop: Option<i32>,
-        step: Option<i32>,
-    ) -> Result<
-        Either<impl Iterator<Item = &Self::Item>, impl Iterator<Item = &Self::Item>>,
-        StepSizeZeroError,
-    >;
-}
-
-impl<T> PySlice for [T] {
-    type Item = T;
-
-    fn py_slice(
-        &self,
-        start: Option<i32>,
-        stop: Option<i32>,
-        step_int: Option<i32>,
-    ) -> Result<
-        Either<impl Iterator<Item = &Self::Item>, impl Iterator<Item = &Self::Item>>,
-        StepSizeZeroError,
-    > {
-        let step_int = step_int.unwrap_or(1);
-        if step_int == 0 {
-            return Err(StepSizeZeroError);
-        }
-
-        let len = self.len();
-        if len == 0 {
-            // The iterator needs to have the same type as the step>0 case below,
-            // so we need to use `.skip(0)`.
-            #[allow(clippy::iter_skip_zero)]
-            return Ok(Either::Left(self.iter().skip(0).take(0).step_by(1)));
-        }
-
-        let to_position = |index| Nth::from_index(index).to_position(len);
-
-        if step_int.is_positive() {
-            let step = from_nonnegative_i32(step_int);
-
-            let start = start.map(to_position).unwrap_or(Position::BeforeStart);
-            let stop = stop.map(to_position).unwrap_or(Position::AfterEnd);
-
-            let (skip, take, step) = if start < stop {
-                let skip = match start {
-                    Position::BeforeStart => 0,
-                    Position::AtIndex(start_index) => start_index,
-                    Position::AfterEnd => len,
-                };
-
-                let take = match stop {
-                    Position::BeforeStart => 0,
-                    Position::AtIndex(stop_index) => stop_index - skip,
-                    Position::AfterEnd => len - skip,
-                };
-
-                (skip, take, step)
-            } else {
-                (0, 0, step)
-            };
-
-            Ok(Either::Left(
-                self.iter().skip(skip).take(take).step_by(step),
-            ))
-        } else {
-            let step = from_negative_i32(step_int);
-
-            let start = start.map(to_position).unwrap_or(Position::AfterEnd);
-            let stop = stop.map(to_position).unwrap_or(Position::BeforeStart);
-
-            let (skip, take, step) = if start <= stop {
-                (0, 0, step)
-            } else {
-                let skip = match start {
-                    Position::BeforeStart => len,
-                    Position::AtIndex(start_index) => len - 1 - start_index,
-                    Position::AfterEnd => 0,
-                };
-
-                let take = match stop {
-                    Position::BeforeStart => len - skip,
-                    Position::AtIndex(stop_index) => (len - 1) - skip - stop_index,
-                    Position::AfterEnd => 0,
-                };
-
-                (skip, take, step)
-            };
-
-            Ok(Either::Right(
-                self.iter().rev().skip(skip).take(take).step_by(step),
-            ))
-        }
-    }
-}
-
-#[cfg(test)]
-#[allow(clippy::redundant_clone)]
-mod tests {
-    use crate::util::subscript::{OutOfBoundsError, StepSizeZeroError};
-
-    use super::{PyIndex, PySlice};
-    use itertools::assert_equal;
-
-    #[test]
-    fn py_index_empty() {
-        let iter = std::iter::empty::<char>();
-
-        assert_eq!(iter.clone().py_index(0), Err(OutOfBoundsError));
-        assert_eq!(iter.clone().py_index(1), Err(OutOfBoundsError));
-        assert_eq!(iter.clone().py_index(-1), Err(OutOfBoundsError));
-        assert_eq!(iter.clone().py_index(i32::MIN), Err(OutOfBoundsError));
-        assert_eq!(iter.clone().py_index(i32::MAX), Err(OutOfBoundsError));
-    }
-
-    #[test]
-    fn py_index_single_element() {
-        let iter = ['a'].into_iter();
-
-        assert_eq!(iter.clone().py_index(0), Ok('a'));
-        assert_eq!(iter.clone().py_index(1), Err(OutOfBoundsError));
-        assert_eq!(iter.clone().py_index(-1), Ok('a'));
-        assert_eq!(iter.clone().py_index(-2), Err(OutOfBoundsError));
-    }
-
-    #[test]
-    fn py_index_more_elements() {
-        let iter = ['a', 'b', 'c', 'd', 'e'].into_iter();
-
-        assert_eq!(iter.clone().py_index(0), Ok('a'));
-        assert_eq!(iter.clone().py_index(1), Ok('b'));
-        assert_eq!(iter.clone().py_index(4), Ok('e'));
-        assert_eq!(iter.clone().py_index(5), Err(OutOfBoundsError));
-
-        assert_eq!(iter.clone().py_index(-1), Ok('e'));
-        assert_eq!(iter.clone().py_index(-2), Ok('d'));
-        assert_eq!(iter.clone().py_index(-5), Ok('a'));
-        assert_eq!(iter.clone().py_index(-6), Err(OutOfBoundsError));
-    }
-
-    #[test]
-    fn py_index_uses_full_index_range() {
-        let iter = 0..=u32::MAX;
-
-        // u32::MAX - |i32::MIN| + 1 = 2^32 - 1 - 2^31 + 1 = 2^31
-        assert_eq!(iter.clone().py_index(i32::MIN), Ok(2u32.pow(31)));
-        assert_eq!(iter.clone().py_index(-2), Ok(u32::MAX - 2 + 1));
-        assert_eq!(iter.clone().py_index(-1), Ok(u32::MAX - 1 + 1));
-
-        assert_eq!(iter.clone().py_index(0), Ok(0));
-        assert_eq!(iter.clone().py_index(1), Ok(1));
-        assert_eq!(iter.clone().py_index(i32::MAX), Ok(i32::MAX as u32));
-    }
-
-    #[track_caller]
-    fn assert_eq_slice<const N: usize, const M: usize>(
-        input: &[char; N],
-        start: Option<i32>,
-        stop: Option<i32>,
-        step: Option<i32>,
-        expected: &[char; M],
-    ) {
-        assert_equal(input.py_slice(start, stop, step).unwrap(), expected.iter());
-    }
-
-    #[test]
-    fn py_slice_empty_input() {
-        let input = [];
-
-        assert_eq_slice(&input, None, None, None, &[]);
-        assert_eq_slice(&input, Some(0), None, None, &[]);
-        assert_eq_slice(&input, None, Some(0), None, &[]);
-        assert_eq_slice(&input, Some(0), Some(0), None, &[]);
-        assert_eq_slice(&input, Some(-5), Some(-5), None, &[]);
-        assert_eq_slice(&input, None, None, Some(-1), &[]);
-        assert_eq_slice(&input, None, None, Some(2), &[]);
-    }
-
-    #[test]
-    fn py_slice_single_element_input() {
-        let input = ['a'];
-
-        assert_eq_slice(&input, None, None, None, &['a']);
-
-        assert_eq_slice(&input, Some(0), None, None, &['a']);
-        assert_eq_slice(&input, None, Some(0), None, &[]);
-        assert_eq_slice(&input, Some(0), Some(0), None, &[]);
-        assert_eq_slice(&input, Some(0), Some(1), None, &['a']);
-        assert_eq_slice(&input, Some(0), Some(2), None, &['a']);
-
-        assert_eq_slice(&input, Some(-1), None, None, &['a']);
-        assert_eq_slice(&input, Some(-1), Some(-1), None, &[]);
-        assert_eq_slice(&input, Some(-1), Some(0), None, &[]);
-        assert_eq_slice(&input, Some(-1), Some(1), None, &['a']);
-        assert_eq_slice(&input, Some(-1), Some(2), None, &['a']);
-        assert_eq_slice(&input, None, Some(-1), None, &[]);
-
-        assert_eq_slice(&input, Some(-2), None, None, &['a']);
-        assert_eq_slice(&input, Some(-2), Some(-1), None, &[]);
-        assert_eq_slice(&input, Some(-2), Some(0), None, &[]);
-        assert_eq_slice(&input, Some(-2), Some(1), None, &['a']);
-        assert_eq_slice(&input, Some(-2), Some(2), None, &['a']);
-    }
-
-    #[test]
-    fn py_slice_nonnegative_indices() {
-        let input = ['a', 'b', 'c', 'd', 'e'];
-
-        assert_eq_slice(&input, None, Some(0), None, &[]);
-        assert_eq_slice(&input, None, Some(1), None, &['a']);
-        assert_eq_slice(&input, None, Some(4), None, &['a', 'b', 'c', 'd']);
-        assert_eq_slice(&input, None, Some(5), None, &['a', 'b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, None, Some(6), None, &['a', 'b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, None, None, None, &['a', 'b', 'c', 'd', 'e']);
-
-        assert_eq_slice(&input, Some(0), Some(0), None, &[]);
-        assert_eq_slice(&input, Some(0), Some(1), None, &['a']);
-        assert_eq_slice(&input, Some(0), Some(4), None, &['a', 'b', 'c', 'd']);
-        assert_eq_slice(&input, Some(0), Some(5), None, &['a', 'b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(0), Some(6), None, &['a', 'b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(0), None, None, &['a', 'b', 'c', 'd', 'e']);
-
-        assert_eq_slice(&input, Some(1), Some(0), None, &[]);
-        assert_eq_slice(&input, Some(1), Some(1), None, &[]);
-        assert_eq_slice(&input, Some(1), Some(2), None, &['b']);
-        assert_eq_slice(&input, Some(1), Some(4), None, &['b', 'c', 'd']);
-        assert_eq_slice(&input, Some(1), Some(5), None, &['b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(1), Some(6), None, &['b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(1), None, None, &['b', 'c', 'd', 'e']);
-
-        assert_eq_slice(&input, Some(4), Some(0), None, &[]);
-        assert_eq_slice(&input, Some(4), Some(4), None, &[]);
-        assert_eq_slice(&input, Some(4), Some(5), None, &['e']);
-        assert_eq_slice(&input, Some(4), Some(6), None, &['e']);
-        assert_eq_slice(&input, Some(4), None, None, &['e']);
-
-        assert_eq_slice(&input, Some(5), Some(0), None, &[]);
-        assert_eq_slice(&input, Some(5), Some(5), None, &[]);
-        assert_eq_slice(&input, Some(5), Some(6), None, &[]);
-        assert_eq_slice(&input, Some(5), None, None, &[]);
-
-        assert_eq_slice(&input, Some(6), Some(0), None, &[]);
-        assert_eq_slice(&input, Some(6), Some(6), None, &[]);
-        assert_eq_slice(&input, Some(6), None, None, &[]);
-    }
-
-    #[test]
-    fn py_slice_negatice_indices() {
-        let input = ['a', 'b', 'c', 'd', 'e'];
-
-        assert_eq_slice(&input, Some(-6), None, None, &['a', 'b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(-6), Some(-1), None, &['a', 'b', 'c', 'd']);
-        assert_eq_slice(&input, Some(-6), Some(-4), None, &['a']);
-        assert_eq_slice(&input, Some(-6), Some(-5), None, &[]);
-        assert_eq_slice(&input, Some(-6), Some(-6), None, &[]);
-        assert_eq_slice(&input, Some(-6), Some(-10), None, &[]);
-
-        assert_eq_slice(&input, Some(-5), None, None, &['a', 'b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(-5), Some(-1), None, &['a', 'b', 'c', 'd']);
-        assert_eq_slice(&input, Some(-5), Some(-4), None, &['a']);
-        assert_eq_slice(&input, Some(-5), Some(-5), None, &[]);
-        assert_eq_slice(&input, Some(-5), Some(-6), None, &[]);
-        assert_eq_slice(&input, Some(-5), Some(-10), None, &[]);
-
-        assert_eq_slice(&input, Some(-4), None, None, &['b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(-4), Some(-1), None, &['b', 'c', 'd']);
-        assert_eq_slice(&input, Some(-4), Some(-3), None, &['b']);
-        assert_eq_slice(&input, Some(-4), Some(-4), None, &[]);
-        assert_eq_slice(&input, Some(-4), Some(-10), None, &[]);
-
-        assert_eq_slice(&input, Some(-1), None, None, &['e']);
-        assert_eq_slice(&input, Some(-1), Some(-1), None, &[]);
-        assert_eq_slice(&input, Some(-1), Some(-10), None, &[]);
-
-        assert_eq_slice(&input, None, Some(-1), None, &['a', 'b', 'c', 'd']);
-        assert_eq_slice(&input, None, Some(-4), None, &['a']);
-        assert_eq_slice(&input, None, Some(-5), None, &[]);
-        assert_eq_slice(&input, None, Some(-6), None, &[]);
-    }
-
-    #[test]
-    fn py_slice_mixed_positive_negative_indices() {
-        let input = ['a', 'b', 'c', 'd', 'e'];
-
-        assert_eq_slice(&input, Some(0), Some(-1), None, &['a', 'b', 'c', 'd']);
-        assert_eq_slice(&input, Some(1), Some(-1), None, &['b', 'c', 'd']);
-        assert_eq_slice(&input, Some(3), Some(-1), None, &['d']);
-        assert_eq_slice(&input, Some(4), Some(-1), None, &[]);
-        assert_eq_slice(&input, Some(5), Some(-1), None, &[]);
-
-        assert_eq_slice(&input, Some(0), Some(-4), None, &['a']);
-        assert_eq_slice(&input, Some(1), Some(-4), None, &[]);
-        assert_eq_slice(&input, Some(3), Some(-4), None, &[]);
-
-        assert_eq_slice(&input, Some(0), Some(-5), None, &[]);
-        assert_eq_slice(&input, Some(1), Some(-5), None, &[]);
-        assert_eq_slice(&input, Some(3), Some(-5), None, &[]);
-
-        assert_eq_slice(&input, Some(0), Some(-6), None, &[]);
-        assert_eq_slice(&input, Some(1), Some(-6), None, &[]);
-
-        assert_eq_slice(&input, Some(-6), Some(6), None, &['a', 'b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(-6), Some(5), None, &['a', 'b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(-6), Some(4), None, &['a', 'b', 'c', 'd']);
-        assert_eq_slice(&input, Some(-6), Some(1), None, &['a']);
-        assert_eq_slice(&input, Some(-6), Some(0), None, &[]);
-
-        assert_eq_slice(&input, Some(-5), Some(6), None, &['a', 'b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(-5), Some(5), None, &['a', 'b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(-5), Some(4), None, &['a', 'b', 'c', 'd']);
-        assert_eq_slice(&input, Some(-5), Some(1), None, &['a']);
-        assert_eq_slice(&input, Some(-5), Some(0), None, &[]);
-
-        assert_eq_slice(&input, Some(-4), Some(6), None, &['b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(-4), Some(5), None, &['b', 'c', 'd', 'e']);
-        assert_eq_slice(&input, Some(-4), Some(4), None, &['b', 'c', 'd']);
-        assert_eq_slice(&input, Some(-4), Some(2), None, &['b']);
-        assert_eq_slice(&input, Some(-4), Some(1), None, &[]);
-        assert_eq_slice(&input, Some(-4), Some(0), None, &[]);
-
-        assert_eq_slice(&input, Some(-1), Some(6), None, &['e']);
-        assert_eq_slice(&input, Some(-1), Some(5), None, &['e']);
-        assert_eq_slice(&input, Some(-1), Some(4), None, &[]);
-        assert_eq_slice(&input, Some(-1), Some(1), None, &[]);
-    }
-
-    #[test]
-    fn py_slice_step_forward() {
-        // indices:   0    1    2    3    4    5    6
-        let input = ['a', 'b', 'c', 'd', 'e', 'f', 'g'];
-
-        // Step size zero is invalid:
-        assert!(matches!(
-            input.py_slice(None, None, Some(0)),
-            Err(StepSizeZeroError)
-        ));
-        assert!(matches!(
-            input.py_slice(Some(0), Some(5), Some(0)),
-            Err(StepSizeZeroError)
-        ));
-        assert!(matches!(
-            input.py_slice(Some(0), Some(0), Some(0)),
-            Err(StepSizeZeroError)
-        ));
-
-        assert_eq_slice(&input, Some(0), Some(8), Some(2), &['a', 'c', 'e', 'g']);
-        assert_eq_slice(&input, Some(0), Some(7), Some(2), &['a', 'c', 'e', 'g']);
-        assert_eq_slice(&input, Some(0), Some(6), Some(2), &['a', 'c', 'e']);
-        assert_eq_slice(&input, Some(0), Some(5), Some(2), &['a', 'c', 'e']);
-        assert_eq_slice(&input, Some(0), Some(4), Some(2), &['a', 'c']);
-        assert_eq_slice(&input, Some(0), Some(3), Some(2), &['a', 'c']);
-        assert_eq_slice(&input, Some(0), Some(2), Some(2), &['a']);
-        assert_eq_slice(&input, Some(0), Some(1), Some(2), &['a']);
-        assert_eq_slice(&input, Some(0), Some(0), Some(2), &[]);
-        assert_eq_slice(&input, Some(1), Some(5), Some(2), &['b', 'd']);
-
-        assert_eq_slice(&input, Some(0), Some(7), Some(3), &['a', 'd', 'g']);
-        assert_eq_slice(&input, Some(0), Some(6), Some(3), &['a', 'd']);
-
-        assert_eq_slice(&input, Some(0), None, Some(10), &['a']);
-    }
-
-    #[test]
-    fn py_slice_step_backward() {
-        // indices:   0    1    2    3    4    5    6
-        let input = ['a', 'b', 'c', 'd', 'e', 'f', 'g'];
-
-        assert_eq_slice(&input, Some(7), Some(0), Some(-2), &['g', 'e', 'c']);
-        assert_eq_slice(&input, Some(6), Some(0), Some(-2), &['g', 'e', 'c']);
-        assert_eq_slice(&input, Some(5), Some(0), Some(-2), &['f', 'd', 'b']);
-        assert_eq_slice(&input, Some(4), Some(0), Some(-2), &['e', 'c']);
-        assert_eq_slice(&input, Some(3), Some(0), Some(-2), &['d', 'b']);
-        assert_eq_slice(&input, Some(2), Some(0), Some(-2), &['c']);
-        assert_eq_slice(&input, Some(1), Some(0), Some(-2), &['b']);
-        assert_eq_slice(&input, Some(0), Some(0), Some(-2), &[]);
-
-        assert_eq_slice(&input, Some(7), None, Some(-2), &['g', 'e', 'c', 'a']);
-        assert_eq_slice(&input, None, None, Some(-2), &['g', 'e', 'c', 'a']);
-        assert_eq_slice(&input, None, Some(0), Some(-2), &['g', 'e', 'c']);
-
-        assert_eq_slice(&input, Some(5), Some(1), Some(-2), &['f', 'd']);
-        assert_eq_slice(&input, Some(5), Some(2), Some(-2), &['f', 'd']);
-        assert_eq_slice(&input, Some(5), Some(3), Some(-2), &['f']);
-        assert_eq_slice(&input, Some(5), Some(4), Some(-2), &['f']);
-        assert_eq_slice(&input, Some(5), Some(5), Some(-2), &[]);
-
-        assert_eq_slice(&input, Some(6), None, Some(-3), &['g', 'd', 'a']);
-        assert_eq_slice(&input, Some(6), Some(0), Some(-3), &['g', 'd']);
-
-        assert_eq_slice(&input, Some(7), None, Some(-10), &['g']);
-
-        assert_eq_slice(&input, Some(-6), Some(-9), Some(-1), &['b', 'a']);
-        assert_eq_slice(&input, Some(-6), Some(-8), Some(-1), &['b', 'a']);
-        assert_eq_slice(&input, Some(-6), Some(-7), Some(-1), &['b']);
-        assert_eq_slice(&input, Some(-6), Some(-6), Some(-1), &[]);
-
-        assert_eq_slice(&input, Some(-7), Some(-9), Some(-1), &['a']);
-
-        assert_eq_slice(&input, Some(-8), Some(-9), Some(-1), &[]);
-        assert_eq_slice(&input, Some(-9), Some(-9), Some(-1), &[]);
-
-        assert_eq_slice(&input, Some(-6), Some(-2), Some(-1), &[]);
-        assert_eq_slice(&input, Some(-9), Some(-6), Some(-1), &[]);
-    }
-}

crates/red_knot_server/src/lib.rs

@@ -1,40 +0,0 @@
-use crate::server::Server;
-use anyhow::Context;
-pub use document::{DocumentKey, NotebookDocument, PositionEncoding, TextDocument};
-pub use session::{ClientSettings, DocumentQuery, DocumentSnapshot, Session};
-use std::num::NonZeroUsize;
-
-#[macro_use]
-mod message;
-
-mod document;
-mod logging;
-mod server;
-mod session;
-mod system;
-
-pub(crate) const SERVER_NAME: &str = "red-knot";
-pub(crate) const DIAGNOSTIC_NAME: &str = "Red Knot";
-
-/// A common result type used in most cases where a
-/// result type is needed.
-pub(crate) type Result<T> = anyhow::Result<T>;
-
-pub(crate) fn version() -> &'static str {
-    env!("CARGO_PKG_VERSION")
-}
-
-pub fn run_server() -> anyhow::Result<()> {
-    let four = NonZeroUsize::new(4).unwrap();
-
-    // by default, we set the number of worker threads to `num_cpus`, with a maximum of 4.
-    let worker_threads = std::thread::available_parallelism()
-        .unwrap_or(four)
-        .min(four);
-
-    Server::new(worker_threads)
-        .context("Failed to start server")?
-        .run()?;
-
-    Ok(())
-}

crates/red_knot_server/src/message.rs

@@ -1,46 +0,0 @@
-use anyhow::Context;
-use lsp_types::notification::Notification;
-use std::sync::OnceLock;
-
-use crate::server::ClientSender;
-
-static MESSENGER: OnceLock<ClientSender> = OnceLock::new();
-
-pub(crate) fn init_messenger(client_sender: ClientSender) {
-    MESSENGER
-        .set(client_sender)
-        .expect("messenger should only be initialized once");
-}
-
-pub(crate) fn show_message(message: String, message_type: lsp_types::MessageType) {
-    try_show_message(message, message_type).unwrap();
-}
-
-pub(super) fn try_show_message(
-    message: String,
-    message_type: lsp_types::MessageType,
-) -> crate::Result<()> {
-    MESSENGER
-        .get()
-        .ok_or_else(|| anyhow::anyhow!("messenger not initialized"))?
-        .send(lsp_server::Message::Notification(
-            lsp_server::Notification {
-                method: lsp_types::notification::ShowMessage::METHOD.into(),
-                params: serde_json::to_value(lsp_types::ShowMessageParams {
-                    typ: message_type,
-                    message,
-                })?,
-            },
-        ))
-        .context("Failed to send message")?;
-
-    Ok(())
-}
-
-/// Sends an error to the client with a formatted message. The error is sent in a
-/// `window/showMessage` notification.
-macro_rules! show_err_msg {
-    ($msg:expr$(, $($arg:tt)*)?) => {
-        crate::message::show_message(::core::format_args!($msg$(, $($arg)*)?).to_string(), lsp_types::MessageType::ERROR)
-    };
-}