Indent lambda parameters if parameters wrap

.cargo/config.toml

@@ -1,3 +1,37 @@
 [alias]
 dev = "run --package ruff_dev --bin ruff_dev"
 benchmark = "bench -p ruff_benchmark --bench linter --bench formatter --"
+
+[target.'cfg(all())']
+rustflags = [
+  # CLIPPY LINT SETTINGS
+  # This is a workaround to configure lints for the entire workspace, pending the ability to configure this via TOML.
+  # See: `https://github.com/rust-lang/cargo/issues/5034`
+  #      `https://github.com/EmbarkStudios/rust-ecosystem/issues/22#issuecomment-947011395`
+  "-Dunsafe_code",
+  "-Wclippy::pedantic",
+  # Allowed pedantic lints
+  "-Wclippy::char_lit_as_u8",
+  "-Aclippy::collapsible_else_if",
+  "-Aclippy::collapsible_if",
+  "-Aclippy::implicit_hasher",
+  "-Aclippy::match_same_arms",
+  "-Aclippy::missing_errors_doc",
+  "-Aclippy::missing_panics_doc",
+  "-Aclippy::module_name_repetitions",
+  "-Aclippy::must_use_candidate",
+  "-Aclippy::similar_names",
+  "-Aclippy::too_many_lines",
+  # Disallowed restriction lints
+  "-Wclippy::print_stdout",
+  "-Wclippy::print_stderr",
+  "-Wclippy::dbg_macro",
+  "-Wclippy::empty_drop",
+  "-Wclippy::empty_structs_with_brackets",
+  "-Wclippy::exit",
+  "-Wclippy::get_unwrap",
+  "-Wclippy::rc_buffer",
+  "-Wclippy::rc_mutex",
+  "-Wclippy::rest_pat_in_fully_bound_structs",
+  "-Wunreachable_pub"
+]

.config/nextest.toml

@@ -1,8 +0,0 @@
-[profile.ci]
-# Print out output for failing tests as soon as they fail, and also at the end
-# of the run (for easy scrollability).
-failure-output = "immediate-final"
-# Do not cancel the test run on the first failure.
-fail-fast = false
-
-status-level = "skip"

.gitattributes

@@ -2,13 +2,6 @@
 
 crates/ruff_linter/resources/test/fixtures/isort/line_ending_crlf.py text eol=crlf
 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/docstring_code_examples_crlf.py text eol=crlf
-crates/ruff_python_formatter/tests/snapshots/format@docstring_code_examples_crlf.py.snap text eol=crlf
-
-crates/ruff_python_parser/resources/inline linguist-generated=true
 
 ruff.schema.json linguist-generated=true text=auto eol=lf
 *.md.snap linguist-language=Markdown

.github/CODEOWNERS

@@ -5,13 +5,5 @@
 # - The '*' pattern is global owners.
 # - Order is important. The last matching pattern has the most precedence.
 
-/crates/ruff_notebook/ @dhruvmanila
-/crates/ruff_formatter/ @MichaReiser
-/crates/ruff_python_formatter/ @MichaReiser
-/crates/ruff_python_parser/ @MichaReiser @dhruvmanila
-
-# flake8-pyi
-/crates/ruff_linter/src/rules/flake8_pyi/ @AlexWaygood
-
-# Script for fuzzing the parser
-/scripts/fuzz-parser/ @AlexWaygood
+# Jupyter
+/crates/ruff_linter/src/jupyter/ @dhruvmanila

.github/ISSUE_TEMPLATE.md

@@ -3,8 +3,6 @@ Thank you for taking the time to report an issue! We're glad to have you involve
 
 If you're filing a bug report, please consider including the following information:
 
-* List of keywords you searched for before creating this issue. Write them down here so that others can find this issue more easily and help provide feedback.
-  e.g. "RUF001", "unused variable", "Jupyter notebook"
 * A minimal code snippet that reproduces the bug.
 * The command you invoked (e.g., `ruff /path/to/file.py --fix`), ideally including the `--isolated` flag.
 * The current Ruff settings (any relevant sections from your `pyproject.toml`).

.github/dependabot.yml

@@ -0,0 +1,13 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    labels: ["internal"]
+
+  - package-ecosystem: "cargo"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    labels: ["internal"]

.github/release.yml

@@ -0,0 +1,29 @@
+# https://docs.github.com/en/repositories/releasing-projects-on-github/automatically-generated-release-notes#configuring-automatically-generated-release-notes
+changelog:
+  exclude:
+    labels:
+      - internal
+      - documentation
+  categories:
+    - title: Breaking Changes
+      labels:
+        - breaking
+    - title: Rules
+      labels:
+        - rule
+    - title: Settings
+      labels:
+        - configuration
+        - cli
+    - title: Bug Fixes
+      labels:
+        - bug
+    - title: Formatter
+      labels:
+        - formatter
+    - title: Preview
+      labels:
+        - preview
+    - title: Other Changes
+      labels:
+        - "*"

.github/renovate.json5

@@ -1,79 +0,0 @@
-{
-  $schema: "https://docs.renovatebot.com/renovate-schema.json",
-  dependencyDashboard: true,
-  suppressNotifications: ["prEditedNotification"],
-  extends: ["config:recommended"],
-  labels: ["internal"],
-  schedule: ["before 4am on Monday"],
-  semanticCommits: "disabled",
-  separateMajorMinor: false,
-  prHourlyLimit: 10,
-  enabledManagers: ["github-actions", "pre-commit", "cargo", "pep621", "npm"],
-  cargo: {
-    // See https://docs.renovatebot.com/configuration-options/#rangestrategy
-    rangeStrategy: "update-lockfile",
-  },
-  pep621: {
-    fileMatch: ["^(python|scripts)/.*pyproject\\.toml$"],
-  },
-  npm: {
-    fileMatch: ["^playground/.*package\\.json$"],
-  },
-  "pre-commit": {
-    enabled: true,
-  },
-  packageRules: [
-    {
-      // Group upload/download artifact updates, the versions are dependent
-      groupName: "Artifact GitHub Actions dependencies",
-      matchManagers: ["github-actions"],
-      matchDatasources: ["gitea-tags", "github-tags"],
-      matchPackagePatterns: ["actions/.*-artifact"],
-      description: "Weekly update of artifact-related GitHub Actions dependencies",
-    },
-    {
-      // This package rule disables updates for GitHub runners:
-      // we'd only pin them to a specific version
-      // if there was a deliberate reason to do so
-      groupName: "GitHub runners",
-      matchManagers: ["github-actions"],
-      matchDatasources: ["github-runners"],
-      description: "Disable PRs updating GitHub runners (e.g. 'runs-on: macos-14')",
-      enabled: false,
-    },
-    {
-      groupName: "pre-commit dependencies",
-      matchManagers: ["pre-commit"],
-      description: "Weekly update of pre-commit dependencies",
-    },
-    {
-      groupName: "NPM Development dependencies",
-      matchManagers: ["npm"],
-      matchDepTypes: ["devDependencies"],
-      description: "Weekly update of NPM development dependencies",
-    },
-    {
-      groupName: "Monaco",
-      matchManagers: ["npm"],
-      matchPackagePatterns: ["monaco"],
-      description: "Weekly update of the Monaco editor",
-    },
-    {
-      groupName: "strum",
-      matchManagers: ["cargo"],
-      matchPackagePatterns: ["strum"],
-      description: "Weekly update of strum dependencies",
-    },
-    {
-      groupName: "ESLint",
-      matchManagers: ["npm"],
-      matchPackageNames: ["eslint"],
-      allowedVersions: "<9",
-      description: "Constraint ESLint to version 8 until TypeScript-eslint supports ESLint 9", // https://github.com/typescript-eslint/typescript-eslint/issues/8211
-    },
-  ],
-  vulnerabilityAlerts: {
-    commitMessageSuffix: "",
-    labels: ["internal", "security"],
-  },
-}

.github/workflows/ci.yaml

@@ -23,35 +23,17 @@ jobs:
     name: "Determine changes"
     runs-on: ubuntu-latest
     outputs:
-      # Flag that is raised when any code that affects parser is changed
-      parser: ${{ steps.changed.outputs.parser_any_changed }}
-      # Flag that is raised when any code that affects linter is changed
       linter: ${{ steps.changed.outputs.linter_any_changed }}
-      # Flag that is raised when any code that affects formatter is changed
       formatter: ${{ steps.changed.outputs.formatter_any_changed }}
-      # Flag that is raised when any code is changed
-      # This is superset of the linter and formatter
-      code: ${{ steps.changed.outputs.code_any_changed }}
     steps:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
-      - uses: tj-actions/changed-files@v44
+      - uses: tj-actions/changed-files@v40
         id: changed
         with:
           files_yaml: |
-            parser:
-              - Cargo.toml
-              - Cargo.lock
-              - crates/ruff_python_trivia/**
-              - crates/ruff_source_file/**
-              - crates/ruff_text_size/**
-              - crates/ruff_python_ast/**
-              - crates/ruff_python_parser/**
-              - scripts/fuzz-parser/**
-              - .github/workflows/ci.yaml
-
             linter:
               - Cargo.toml
               - Cargo.lock
@@ -59,8 +41,8 @@ jobs:
               - "!crates/ruff_python_formatter/**"
               - "!crates/ruff_formatter/**"
               - "!crates/ruff_dev/**"
+              - "!crates/ruff_shrinking/**"
               - scripts/*
-              - python/**
               - .github/workflows/ci.yaml
 
             formatter:
@@ -76,19 +58,11 @@ jobs:
               - crates/ruff_python_parser/**
               - crates/ruff_dev/**
               - scripts/*
-              - python/**
               - .github/workflows/ci.yaml
 
-            code:
-              - "**/*"
-              - "!**/*.md"
-              - "!docs/**"
-              - "!assets/**"
-
   cargo-fmt:
     name: "cargo fmt"
     runs-on: ubuntu-latest
-    timeout-minutes: 10
     steps:
       - uses: actions/checkout@v4
       - name: "Install Rust toolchain"
@@ -98,9 +72,6 @@ jobs:
   cargo-clippy:
     name: "cargo clippy"
     runs-on: ubuntu-latest
-    needs: determine_changes
-    if: ${{ needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main' }}
-    timeout-minutes: 20
     steps:
       - uses: actions/checkout@v4
       - name: "Install Rust toolchain"
@@ -109,26 +80,41 @@ jobs:
           rustup target add wasm32-unknown-unknown
       - uses: Swatinem/rust-cache@v2
       - name: "Clippy"
-        run: cargo clippy --workspace --all-targets --all-features --locked -- -D warnings
+        run: cargo clippy --workspace --all-targets --all-features -- -D warnings
       - name: "Clippy (wasm)"
-        run: cargo clippy -p ruff_wasm --target wasm32-unknown-unknown --all-features --locked -- -D warnings
+        run: cargo clippy -p ruff_wasm --target wasm32-unknown-unknown --all-features -- -D warnings
 
   cargo-test-linux:
-    name: "cargo test (linux)"
     runs-on: ubuntu-latest
-    needs: determine_changes
-    if: ${{ needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main' }}
-    timeout-minutes: 20
+    name: "cargo test (linux)"
     steps:
       - uses: actions/checkout@v4
       - name: "Install Rust toolchain"
         run: rustup show
-      - name: "Install mold"
-        uses: rui314/setup-mold@v1
-      - name: "Install cargo nextest"
+      - name: "Install cargo insta"
         uses: taiki-e/install-action@v2
         with:
-          tool: cargo-nextest
+          tool: cargo-insta
+      - uses: Swatinem/rust-cache@v2
+      - name: "Run tests"
+        run: cargo insta test --all --all-features --unreferenced reject
+      # Check for broken links in the documentation.
+      - run: cargo doc --all --no-deps
+        env:
+          # Setting RUSTDOCFLAGS because `cargo doc --check` isn't yet implemented (https://github.com/rust-lang/cargo/issues/10025).
+          RUSTDOCFLAGS: "-D warnings"
+      - uses: actions/upload-artifact@v3
+        with:
+          name: ruff
+          path: target/debug/ruff
+
+  cargo-test-windows:
+    runs-on: windows-latest
+    name: "cargo test (windows)"
+    steps:
+      - uses: actions/checkout@v4
+      - name: "Install Rust toolchain"
+        run: rustup show
       - name: "Install cargo insta"
         uses: taiki-e/install-action@v2
         with:
@@ -136,50 +122,12 @@ jobs:
       - uses: Swatinem/rust-cache@v2
       - name: "Run tests"
         shell: bash
-        env:
-          NEXTEST_PROFILE: "ci"
-        run: cargo insta test --all-features --unreferenced reject --test-runner nextest
-
-      # Check for broken links in the documentation.
-      - run: cargo doc --all --no-deps
-        env:
-          # Setting RUSTDOCFLAGS because `cargo doc --check` isn't yet implemented (https://github.com/rust-lang/cargo/issues/10025).
-          RUSTDOCFLAGS: "-D warnings"
-      - uses: actions/upload-artifact@v4
-        with:
-          name: ruff
-          path: target/debug/ruff
-
-  cargo-test-windows:
-    name: "cargo test (windows)"
-    runs-on: windows-latest
-    needs: determine_changes
-    if: ${{ needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main' }}
-    timeout-minutes: 20
-    steps:
-      - uses: actions/checkout@v4
-      - name: "Install Rust toolchain"
-        run: rustup show
-      - name: "Install cargo nextest"
-        uses: taiki-e/install-action@v2
-        with:
-          tool: cargo-nextest
-      - uses: Swatinem/rust-cache@v2
-      - name: "Run tests"
-        shell: bash
-        env:
-          # Workaround for <https://github.com/nextest-rs/nextest/issues/1493>.
-          RUSTUP_WINDOWS_PATH_ADD_BIN: 1
-        run: |
-          cargo nextest run --all-features --profile ci
-          cargo test --all-features --doc
+        # We can't reject unreferenced snapshots on windows because flake8_executable can't run on windows
+        run: cargo insta test --all --all-features
 
   cargo-test-wasm:
-    name: "cargo test (wasm)"
     runs-on: ubuntu-latest
-    needs: determine_changes
-    if: ${{ needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main' }}
-    timeout-minutes: 10
+    name: "cargo test (wasm)"
     steps:
       - uses: actions/checkout@v4
       - name: "Install Rust toolchain"
@@ -196,28 +144,9 @@ jobs:
           cd crates/ruff_wasm
           wasm-pack test --node
 
-  cargo-build-release:
-    name: "cargo build (release)"
-    runs-on: macos-latest
-    needs: determine_changes
-    if: ${{ needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main' }}
-    timeout-minutes: 20
-    steps:
-      - uses: actions/checkout@v4
-      - name: "Install Rust toolchain"
-        run: rustup show
-      - name: "Install mold"
-        uses: rui314/setup-mold@v1
-      - uses: Swatinem/rust-cache@v2
-      - name: "Build"
-        run: cargo build --release --locked
-
   cargo-fuzz:
-    name: "cargo fuzz"
     runs-on: ubuntu-latest
-    needs: determine_changes
-    if: ${{ needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main' }}
-    timeout-minutes: 10
+    name: "cargo fuzz"
     steps:
       - uses: actions/checkout@v4
       - name: "Install Rust toolchain"
@@ -228,47 +157,12 @@ jobs:
       - name: "Install cargo-fuzz"
         uses: taiki-e/install-action@v2
         with:
-          tool: cargo-fuzz@0.11.2
+          tool: cargo-fuzz@0.11
       - run: cargo fuzz build -s none
 
-  fuzz-parser:
-    name: "Fuzz the parser"
-    runs-on: ubuntu-latest
-    needs:
-      - cargo-test-linux
-      - determine_changes
-    if: ${{ needs.determine_changes.outputs.parser == 'true' }}
-    timeout-minutes: 20
-    env:
-      FORCE_COLOR: 1
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
-        with:
-          python-version: ${{ env.PYTHON_VERSION }}
-      - name: Install uv
-        run: curl -LsSf https://astral.sh/uv/install.sh | sh
-      - name: Install Python requirements
-        run: uv pip install -r scripts/fuzz-parser/requirements.txt --system
-      - uses: actions/download-artifact@v4
-        name: Download Ruff binary to test
-        id: download-cached-binary
-        with:
-          name: ruff
-          path: ruff-to-test
-      - name: Fuzz
-        run: |
-          # Make executable, since artifact download doesn't preserve this
-          chmod +x ${{ steps.download-cached-binary.outputs.download-path }}/ruff
-
-          python scripts/fuzz-parser/fuzz.py 0-500 --test-executable ${{ steps.download-cached-binary.outputs.download-path }}/ruff
-
   scripts:
     name: "test scripts"
     runs-on: ubuntu-latest
-    needs: determine_changes
-    if: ${{ needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main' }}
-    timeout-minutes: 5
     steps:
       - uses: actions/checkout@v4
       - name: "Install Rust toolchain"
@@ -290,28 +184,25 @@ jobs:
       - 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.
-    # Ecosystem check needs linter and/or formatter changes.
-    if: ${{ github.event_name == 'pull_request' && needs.determine_changes.outputs.code == 'true' }}
-    timeout-minutes: 20
+    if: github.event_name == 'pull_request'
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
 
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v3
         name: Download comparison Ruff binary
         id: ruff-target
         with:
           name: ruff
           path: target/debug
 
-      - uses: dawidd6/action-download-artifact@v3
+      - uses: dawidd6/action-download-artifact@v2
         name: Download baseline Ruff binary
         with:
           name: ruff
           branch: ${{ github.event.pull_request.base.ref }}
-          workflow: "ci.yaml"
           check_artifacts: true
 
       - name: Install ruff-ecosystem
@@ -386,36 +277,38 @@ jobs:
         run: |
           echo ${{ github.event.number }} > pr-number
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v3
         name: Upload PR Number
         with:
           name: pr-number
           path: pr-number
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v3
         name: Upload Results
         with:
           name: ecosystem-result
           path: ecosystem-result
 
-  cargo-shear:
-    name: "cargo shear"
+  cargo-udeps:
+    name: "cargo udeps"
     runs-on: ubuntu-latest
-    needs: determine_changes
-    if: ${{ needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main' }}
     steps:
       - uses: actions/checkout@v4
-      - uses: cargo-bins/cargo-binstall@main
-      - run: cargo binstall --no-confirm cargo-shear
-      - run: cargo shear
+      - name: "Install nightly Rust toolchain"
+        # Only pinned to make caching work, update freely
+        run: rustup toolchain install nightly-2023-10-15
+      - uses: Swatinem/rust-cache@v2
+      - name: "Install cargo-udeps"
+        uses: taiki-e/install-action@cargo-udeps
+      - name: "Run cargo-udeps"
+        run: cargo +nightly-2023-10-15 udeps
 
   python-package:
     name: "python package"
     runs-on: ubuntu-latest
-    timeout-minutes: 20
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: x64
@@ -437,10 +330,9 @@ jobs:
   pre-commit:
     name: "pre-commit"
     runs-on: ubuntu-latest
-    timeout-minutes: 10
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: "Install Rust toolchain"
@@ -449,7 +341,7 @@ jobs:
       - name: "Install pre-commit"
         run: pip install pre-commit
       - name: "Cache pre-commit"
-        uses: actions/cache@v4
+        uses: actions/cache@v3
         with:
           path: ~/.cache/pre-commit
           key: pre-commit-${{ hashFiles('.pre-commit-config.yaml') }}
@@ -466,15 +358,14 @@ jobs:
   docs:
     name: "mkdocs"
     runs-on: ubuntu-latest
-    timeout-minutes: 10
     env:
       MKDOCS_INSIDERS_SSH_KEY_EXISTS: ${{ secrets.MKDOCS_INSIDERS_SSH_KEY != '' }}
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
       - name: "Add SSH key"
         if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
-        uses: webfactory/ssh-agent@v0.9.0
+        uses: webfactory/ssh-agent@v0.8.0
         with:
           ssh-private-key: ${{ secrets.MKDOCS_INSIDERS_SSH_KEY }}
       - name: "Install Rust toolchain"
@@ -497,14 +388,13 @@ jobs:
         run: mkdocs build --strict -f mkdocs.insiders.yml
       - name: "Build docs"
         if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS != 'true' }}
-        run: mkdocs build --strict -f mkdocs.public.yml
+        run: mkdocs build --strict -f mkdocs.generated.yml
 
   check-formatter-instability-and-black-similarity:
     name: "formatter instabilities and black similarity"
     runs-on: ubuntu-latest
     needs: determine_changes
     if: needs.determine_changes.outputs.formatter == 'true' || github.ref == 'refs/heads/main'
-    timeout-minutes: 10
     steps:
       - uses: actions/checkout@v4
       - name: "Install Rust toolchain"
@@ -521,13 +411,9 @@ jobs:
   check-ruff-lsp:
     name: "test ruff-lsp"
     runs-on: ubuntu-latest
-    timeout-minutes: 5
-    needs:
-      - cargo-test-linux
-      - determine_changes
-    if: ${{ needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main' }}
+    needs: cargo-test-linux
     steps:
-      - uses: extractions/setup-just@v2
+      - uses: extractions/setup-just@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -536,11 +422,11 @@ jobs:
         with:
           repository: "astral-sh/ruff-lsp"
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
 
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v3
         name: Download development ruff binary
         id: ruff-target
         with:
@@ -563,9 +449,6 @@ jobs:
 
   benchmarks:
     runs-on: ubuntu-latest
-    needs: determine_changes
-    if: ${{ github.repository == 'astral-sh/ruff' && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
-    timeout-minutes: 20
     steps:
       - name: "Checkout Branch"
         uses: actions/checkout@v4
@@ -584,7 +467,7 @@ jobs:
         run: cargo codspeed build --features codspeed -p ruff_benchmark
 
       - name: "Run benchmarks"
-        uses: CodSpeedHQ/action@v2
+        uses: CodSpeedHQ/action@v1
         with:
           run: cargo codspeed run
           token: ${{ secrets.CODSPEED_TOKEN }}

.github/workflows/daily_fuzz.yaml

@@ -1,72 +0,0 @@
-name: Daily parser fuzz
-
-on:
-  workflow_dispatch:
-  schedule:
-    - cron: "0 0 * * *"
-  pull_request:
-    paths:
-      - ".github/workflows/daily_fuzz.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
-  PACKAGE_NAME: ruff
-  FORCE_COLOR: 1
-
-jobs:
-  fuzz:
-    name: Fuzz
-    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@v4
-      - uses: actions/setup-python@v5
-        with:
-          python-version: "3.12"
-      - name: Install uv
-        run: curl -LsSf https://astral.sh/uv/install.sh | sh
-      - name: Install Python requirements
-        run: uv pip install -r scripts/fuzz-parser/requirements.txt --system
-      - name: "Install Rust toolchain"
-        run: rustup show
-      - name: "Install mold"
-        uses: rui314/setup-mold@v1
-      - uses: Swatinem/rust-cache@v2
-      - name: Build ruff
-        # A debug build means the script runs slower once it gets started,
-        # but this is outweighed by the fact that a release build takes *much* longer to compile in CI
-        run: cargo build --locked
-      - name: Fuzz
-        run: python scripts/fuzz-parser/fuzz.py $(shuf -i 0-9999999999999999999 -n 1000) --test-executable target/debug/ruff
-
-  create-issue-on-failure:
-    name: Create an issue if the daily fuzz surfaced any bugs
-    runs-on: ubuntu-latest
-    needs: fuzz
-    if: ${{ github.repository == 'astral-sh/ruff' && always() && github.event_name == 'schedule' && needs.fuzz.result == 'failure' }}
-    permissions:
-      issues: write
-    steps:
-      - uses: actions/github-script@v7
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          script: |
-            await github.rest.issues.create({
-              owner: "astral-sh",
-              repo: "ruff",
-              title: `Daily parser fuzz failed on ${new Date().toDateString()}`,
-              body: "Runs listed here: https://github.com/astral-sh/ruff/actions/workflows/daily_fuzz.yml",
-              labels: ["bug", "parser", "fuzzer"],
-            })

.github/workflows/docs.yaml

@@ -20,10 +20,10 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ inputs.ref }}
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
       - name: "Add SSH key"
         if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
-        uses: webfactory/ssh-agent@v0.9.0
+        uses: webfactory/ssh-agent@v0.8.0
         with:
           ssh-private-key: ${{ secrets.MKDOCS_INSIDERS_SSH_KEY }}
       - name: "Install Rust toolchain"
@@ -44,10 +44,10 @@ jobs:
         run: mkdocs build --strict -f mkdocs.insiders.yml
       - name: "Build docs"
         if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS != 'true' }}
-        run: mkdocs build --strict -f mkdocs.public.yml
+        run: mkdocs build --strict -f mkdocs.generated.yml
       - name: "Deploy to Cloudflare Pages"
         if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
-        uses: cloudflare/wrangler-action@v3.5.0
+        uses: cloudflare/wrangler-action@v3.3.2
         with:
           apiToken: ${{ secrets.CF_API_TOKEN }}
           accountId: ${{ secrets.CF_ACCOUNT_ID }}

.github/workflows/flake8-to-ruff.yaml

@@ -0,0 +1,247 @@
+name: "[flake8-to-ruff] Release"
+
+on: workflow_dispatch
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  PACKAGE_NAME: flake8-to-ruff
+  CRATE_NAME: flake8_to_ruff
+  PYTHON_VERSION: "3.11"
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_RETRY: 10
+  CARGO_TERM_COLOR: always
+  RUSTUP_MAX_RETRIES: 10
+
+jobs:
+  macos-x86_64:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: x64
+      - name: "Install Rust toolchain"
+        run: rustup show
+      - name: "Build wheels - x86_64"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: x86_64
+          args: --release --out dist --sdist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - name: "Install built wheel - x86_64"
+        run: |
+          pip install dist/${{ env.CRATE_NAME }}-*.whl --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+  macos-universal:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: x64
+      - name: "Install Rust toolchain"
+        run: rustup show
+      - name: "Build wheels - universal2"
+        uses: PyO3/maturin-action@v1
+        with:
+          args: --release --target universal2-apple-darwin --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - name: "Install built wheel - universal2"
+        run: |
+          pip install dist/${{ env.CRATE_NAME }}-*universal2.whl --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  windows:
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        target: [x64, x86]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: ${{ matrix.target }}
+      - name: "Install Rust toolchain"
+        run: rustup show
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          args: --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - name: "Install built wheel"
+        shell: bash
+        run: |
+          python -m pip install dist/${{ env.CRATE_NAME }}-*.whl --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  linux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target: [x86_64, i686]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: x64
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          manylinux: auto
+          args: --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - name: "Install built wheel"
+        if: matrix.target == 'x86_64'
+        run: |
+          pip install dist/${{ env.CRATE_NAME }}-*.whl --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  linux-cross:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target: [aarch64, armv7, s390x, ppc64le, ppc64]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          manylinux: auto
+          args: --no-default-features --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - uses: uraimo/run-on-arch-action@v2
+        if: matrix.target != 'ppc64'
+        name: Install built wheel
+        with:
+          arch: ${{ matrix.target }}
+          distro: ubuntu20.04
+          githubToken: ${{ github.token }}
+          install: |
+            apt-get update
+            apt-get install -y --no-install-recommends python3 python3-pip
+            pip3 install -U pip
+          run: |
+            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  musllinux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target:
+          - x86_64-unknown-linux-musl
+          - i686-unknown-linux-musl
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          architecture: x64
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.target }}
+          manylinux: musllinux_1_2
+          args: --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - name: "Install built wheel"
+        if: matrix.target == 'x86_64-unknown-linux-musl'
+        uses: addnab/docker-run-action@v3
+        with:
+          image: alpine:latest
+          options: -v ${{ github.workspace }}:/io -w /io
+          run: |
+            apk add py3-pip
+            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links /io/dist/ --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  musllinux-cross:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        platform:
+          - target: aarch64-unknown-linux-musl
+            arch: aarch64
+          - target: armv7-unknown-linux-musleabihf
+            arch: armv7
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+      - name: "Build wheels"
+        uses: PyO3/maturin-action@v1
+        with:
+          target: ${{ matrix.platform.target }}
+          manylinux: musllinux_1_2
+          args: --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+      - uses: uraimo/run-on-arch-action@v2
+        name: Install built wheel
+        with:
+          arch: ${{ matrix.platform.arch }}
+          distro: alpine_latest
+          githubToken: ${{ github.token }}
+          install: |
+            apk add py3-pip
+          run: |
+            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
+      - name: "Upload wheels"
+        uses: actions/upload-artifact@v3
+        with:
+          name: wheels
+          path: dist
+
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    needs:
+      - macos-universal
+      - macos-x86_64
+      - windows
+      - linux
+      - linux-cross
+      - musllinux
+      - musllinux-cross
+    steps:
+      - uses: actions/download-artifact@v3
+        with:
+          name: wheels
+      - uses: actions/setup-python@v4
+      - name: "Publish to PyPi"
+        env:
+          TWINE_USERNAME: __token__
+          TWINE_PASSWORD: ${{ secrets.FLAKE8_TO_RUFF_TOKEN }}
+        run: |
+          pip install --upgrade twine
+          twine upload --skip-existing *

.github/workflows/playground.yaml

@@ -40,7 +40,7 @@ jobs:
         working-directory: playground
       - name: "Deploy to Cloudflare Pages"
         if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
-        uses: cloudflare/wrangler-action@v3.5.0
+        uses: cloudflare/wrangler-action@v3.3.2
         with:
           apiToken: ${{ secrets.CF_API_TOKEN }}
           accountId: ${{ secrets.CF_ACCOUNT_ID }}

.github/workflows/pr-comment.yaml

@@ -17,7 +17,7 @@ jobs:
   comment:
     runs-on: ubuntu-latest
     steps:
-      - uses: dawidd6/action-download-artifact@v3
+      - uses: dawidd6/action-download-artifact@v2
         name: Download pull request number
         with:
           name: pr-number
@@ -32,7 +32,7 @@ jobs:
             echo "pr-number=$(<pr-number)" >> $GITHUB_OUTPUT
           fi
 
-      - uses: dawidd6/action-download-artifact@v3
+      - uses: dawidd6/action-download-artifact@v2
         name: "Download ecosystem results"
         id: download-ecosystem-result
         if: steps.pr-number.outputs.pr-number
@@ -61,7 +61,7 @@ jobs:
           echo 'EOF' >> $GITHUB_OUTPUT
 
       - name: Find existing comment
-        uses: peter-evans/find-comment@v3
+        uses: peter-evans/find-comment@v2
         if: steps.generate-comment.outcome == 'success'
         id: find-comment
         with:
@@ -71,7 +71,7 @@ jobs:
 
       - name: Create or update comment
         if: steps.find-comment.outcome == 'success'
-        uses: peter-evans/create-or-update-comment@v4
+        uses: peter-evans/create-or-update-comment@v3
         with:
           comment-id: ${{ steps.find-comment.outputs.comment-id }}
           issue-number: ${{ steps.pr-number.outputs.pr-number }}

.github/workflows/release.yaml

@@ -36,7 +36,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ inputs.sha }}
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: "Prep README.md"
@@ -52,18 +52,18 @@ jobs:
           ruff --help
           python -m ruff --help
       - name: "Upload sdist"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: wheels-sdist
+          name: wheels
           path: dist
 
   macos-x86_64:
-    runs-on: macos-12
+    runs-on: macos-latest
     steps:
       - uses: actions/checkout@v4
         with:
           ref: ${{ inputs.sha }}
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: x64
@@ -73,66 +73,65 @@ jobs:
         uses: PyO3/maturin-action@v1
         with:
           target: x86_64
-          args: --release --locked --out dist
+          args: --release --out dist
       - name: "Test wheel - x86_64"
         run: |
           pip install dist/${{ env.PACKAGE_NAME }}-*.whl --force-reinstall
           ruff --help
           python -m ruff --help
       - name: "Upload wheels"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: wheels-macos-x86_64
+          name: wheels
           path: dist
       - name: "Archive binary"
         run: |
-          ARCHIVE_FILE=ruff-${{ inputs.tag }}-x86_64-apple-darwin.tar.gz
+          ARCHIVE_FILE=ruff-x86_64-apple-darwin.tar.gz
           tar czvf $ARCHIVE_FILE -C target/x86_64-apple-darwin/release ruff
           shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
       - name: "Upload binary"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: binaries-macos-x86_64
+          name: binaries
           path: |
             *.tar.gz
             *.sha256
 
-  macos-aarch64:
-    runs-on: macos-14
+  macos-universal:
+    runs-on: macos-latest
     steps:
       - uses: actions/checkout@v4
         with:
           ref: ${{ inputs.sha }}
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
-          architecture: arm64
+          architecture: x64
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
-      - name: "Build wheels - aarch64"
+      - name: "Build wheels - universal2"
         uses: PyO3/maturin-action@v1
         with:
-          target: aarch64
-          args: --release --locked --out dist
-      - name: "Test wheel - aarch64"
+          args: --release --target universal2-apple-darwin --out dist
+      - name: "Test wheel - universal2"
         run: |
-          pip install dist/${{ env.PACKAGE_NAME }}-*.whl --force-reinstall
+          pip install dist/${{ env.PACKAGE_NAME }}-*universal2.whl --force-reinstall
           ruff --help
           python -m ruff --help
       - name: "Upload wheels"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: wheels-aarch64-apple-darwin
+          name: wheels
           path: dist
       - name: "Archive binary"
         run: |
-          ARCHIVE_FILE=ruff-${{ inputs.tag }}-aarch64-apple-darwin.tar.gz
+          ARCHIVE_FILE=ruff-aarch64-apple-darwin.tar.gz
           tar czvf $ARCHIVE_FILE -C target/aarch64-apple-darwin/release ruff
           shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
       - name: "Upload binary"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: binaries-aarch64-apple-darwin
+          name: binaries
           path: |
             *.tar.gz
             *.sha256
@@ -152,7 +151,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ inputs.sha }}
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: ${{ matrix.platform.arch }}
@@ -162,7 +161,7 @@ jobs:
         uses: PyO3/maturin-action@v1
         with:
           target: ${{ matrix.platform.target }}
-          args: --release --locked --out dist
+          args: --release --out dist
       - name: "Test wheel"
         if: ${{ !startsWith(matrix.platform.target, 'aarch64') }}
         shell: bash
@@ -171,20 +170,20 @@ jobs:
           ruff --help
           python -m ruff --help
       - name: "Upload wheels"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: wheels-${{ matrix.platform.target }}
+          name: wheels
           path: dist
       - name: "Archive binary"
         shell: bash
         run: |
-          ARCHIVE_FILE=ruff-${{ inputs.tag }}-${{ matrix.platform.target }}.zip
+          ARCHIVE_FILE=ruff-${{ matrix.platform.target }}.zip
           7z a $ARCHIVE_FILE ./target/${{ matrix.platform.target }}/release/ruff.exe
           sha256sum $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
       - name: "Upload binary"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: binaries-${{ matrix.platform.target }}
+          name: binaries
           path: |
             *.zip
             *.sha256
@@ -200,7 +199,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ inputs.sha }}
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: x64
@@ -211,7 +210,7 @@ jobs:
         with:
           target: ${{ matrix.target }}
           manylinux: auto
-          args: --release --locked --out dist
+          args: --release --out dist
       - name: "Test wheel"
         if: ${{ startsWith(matrix.target, 'x86_64') }}
         run: |
@@ -219,19 +218,19 @@ jobs:
           ruff --help
           python -m ruff --help
       - name: "Upload wheels"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: wheels-${{ matrix.target }}
+          name: wheels
           path: dist
       - name: "Archive binary"
         run: |
-          ARCHIVE_FILE=ruff-${{ inputs.tag }}-${{ matrix.target }}.tar.gz
+          ARCHIVE_FILE=ruff-${{ matrix.target }}.tar.gz
           tar czvf $ARCHIVE_FILE -C target/${{ matrix.target }}/release ruff
           shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
       - name: "Upload binary"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: binaries-${{ matrix.target }}
+          name: binaries
           path: |
             *.tar.gz
             *.sha256
@@ -252,18 +251,14 @@ jobs:
             arch: s390x
           - target: powerpc64le-unknown-linux-gnu
             arch: ppc64le
-            # see https://github.com/astral-sh/ruff/issues/10073
-            maturin_docker_options: -e JEMALLOC_SYS_WITH_LG_PAGE=16
           - target: powerpc64-unknown-linux-gnu
             arch: ppc64
-            # see https://github.com/astral-sh/ruff/issues/10073
-            maturin_docker_options: -e JEMALLOC_SYS_WITH_LG_PAGE=16
 
     steps:
       - uses: actions/checkout@v4
         with:
           ref: ${{ inputs.sha }}
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: "Prep README.md"
@@ -274,7 +269,7 @@ jobs:
           target: ${{ matrix.platform.target }}
           manylinux: auto
           docker-options: ${{ matrix.platform.maturin_docker_options }}
-          args: --release --locked --out dist
+          args: --release --out dist
       - uses: uraimo/run-on-arch-action@v2
         if: matrix.platform.arch != 'ppc64'
         name: Test wheel
@@ -290,19 +285,19 @@ jobs:
             pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
             ruff --help
       - name: "Upload wheels"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: wheels-${{ matrix.platform.target }}
+          name: wheels
           path: dist
       - name: "Archive binary"
         run: |
-          ARCHIVE_FILE=ruff-${{ inputs.tag }}-${{ matrix.platform.target }}.tar.gz
+          ARCHIVE_FILE=ruff-${{ matrix.platform.target }}.tar.gz
           tar czvf $ARCHIVE_FILE -C target/${{ matrix.platform.target }}/release ruff
           shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
       - name: "Upload binary"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: binaries-${{ matrix.platform.target }}
+          name: binaries
           path: |
             *.tar.gz
             *.sha256
@@ -318,7 +313,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ inputs.sha }}
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: x64
@@ -329,7 +324,7 @@ jobs:
         with:
           target: ${{ matrix.target }}
           manylinux: musllinux_1_2
-          args: --release --locked --out dist
+          args: --release --out dist
       - name: "Test wheel"
         if: matrix.target == 'x86_64-unknown-linux-musl'
         uses: addnab/docker-run-action@v3
@@ -337,24 +332,24 @@ jobs:
           image: alpine:latest
           options: -v ${{ github.workspace }}:/io -w /io
           run: |
-            apk add python3
-            python -m venv .venv
-            .venv/bin/pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
-            .venv/bin/ruff check --help
+            apk add py3-pip
+            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links /io/dist/ --force-reinstall
+            ruff --help
+            python -m ruff --help
       - name: "Upload wheels"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: wheels-${{ matrix.target }}
+          name: wheels
           path: dist
       - name: "Archive binary"
         run: |
-          ARCHIVE_FILE=ruff-${{ inputs.tag }}-${{ matrix.target }}.tar.gz
+          ARCHIVE_FILE=ruff-${{ matrix.target }}.tar.gz
           tar czvf $ARCHIVE_FILE -C target/${{ matrix.target }}/release ruff
           shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
       - name: "Upload binary"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: binaries-${{ matrix.target }}
+          name: binaries
           path: |
             *.tar.gz
             *.sha256
@@ -374,7 +369,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ inputs.sha }}
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: "Prep README.md"
@@ -384,7 +379,7 @@ jobs:
         with:
           target: ${{ matrix.platform.target }}
           manylinux: musllinux_1_2
-          args: --release --locked --out dist
+          args: --release --out dist
           docker-options: ${{ matrix.platform.maturin_docker_options }}
       - uses: uraimo/run-on-arch-action@v2
         name: Test wheel
@@ -393,25 +388,24 @@ jobs:
           distro: alpine_latest
           githubToken: ${{ github.token }}
           install: |
-            apk add python3
+            apk add py3-pip
           run: |
-            python -m venv .venv
-            .venv/bin/pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
-            .venv/bin/ruff check --help
+            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
+            ruff check --help
       - name: "Upload wheels"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: wheels-${{ matrix.platform.target }}
+          name: wheels
           path: dist
       - name: "Archive binary"
         run: |
-          ARCHIVE_FILE=ruff-${{ inputs.tag }}-${{ matrix.platform.target }}.tar.gz
+          ARCHIVE_FILE=ruff-${{ matrix.platform.target }}.tar.gz
           tar czvf $ARCHIVE_FILE -C target/${{ matrix.platform.target }}/release ruff
           shasum -a 256 $ARCHIVE_FILE > $ARCHIVE_FILE.sha256
       - name: "Upload binary"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
-          name: binaries-${{ matrix.platform.target }}
+          name: binaries
           path: |
             *.tar.gz
             *.sha256
@@ -452,7 +446,7 @@ jobs:
     name: Upload to PyPI
     runs-on: ubuntu-latest
     needs:
-      - macos-aarch64
+      - macos-universal
       - macos-x86_64
       - windows
       - linux
@@ -468,11 +462,10 @@ jobs:
       # For pypi trusted publishing
       id-token: write
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v3
         with:
-          pattern: wheels-*
+          name: wheels
           path: wheels
-          merge-multiple: true
       - name: Publish to PyPi
         uses: pypa/gh-action-pypi-publish@release/v1
         with:
@@ -512,74 +505,17 @@ jobs:
       # For GitHub release publishing
       contents: write
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v3
         with:
-          pattern: binaries-*
+          name: binaries
           path: binaries
-          merge-multiple: true
       - name: "Publish to GitHub"
-        uses: softprops/action-gh-release@v2
+        uses: softprops/action-gh-release@v1
         with:
           draft: true
           files: binaries/*
           tag_name: v${{ inputs.tag }}
 
-  docker-publish:
-    # This action doesn't need to wait on any other task, it's easy to re-tag if something failed and we're validating
-    # the tag here also
-    name: Push Docker image ghcr.io/astral-sh/ruff
-    runs-on: ubuntu-latest
-    environment:
-      name: release
-    permissions:
-      # For the docker push
-      packages: write
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          ref: ${{ inputs.sha }}
-
-      - uses: docker/setup-buildx-action@v3
-
-      - uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Extract metadata (tags, labels) for Docker
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ghcr.io/astral-sh/ruff
-
-      - name: Check tag consistency
-        # Unlike validate-tag we don't check if the commit is on the main branch, but it seems good enough since we can
-        # change docker tags
-        if: ${{ inputs.tag }}
-        run: |
-          version=$(grep "version = " pyproject.toml | sed -e 's/version = "\(.*\)"/\1/g')
-          if [ "${{ inputs.tag }}" != "${version}" ]; then
-            echo "The input tag does not match the version from pyproject.toml:" >&2
-            echo "${{ inputs.tag }}" >&2
-            echo "${version}" >&2
-            exit 1
-          else
-            echo "Releasing ${version}"
-          fi
-
-      - name: "Build and push Docker image"
-        uses: docker/build-push-action@v5
-        with:
-          context: .
-          platforms: linux/amd64,linux/arm64
-          # Reuse the builder
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
-          push: ${{ inputs.tag != '' }}
-          tags: ghcr.io/astral-sh/ruff:latest,ghcr.io/astral-sh/ruff:${{ inputs.tag || 'dry-run' }}
-          labels: ${{ steps.meta.outputs.labels }}
-
   # After the release has been published, we update downstream repositories
   # This is separate because if this fails the release is still fine, we just need to do some manual workflow triggers
   update-dependents:
@@ -588,7 +524,7 @@ jobs:
     needs: publish-release
     steps:
       - name: "Update pre-commit mirror"
-        uses: actions/github-script@v7
+        uses: actions/github-script@v6
         with:
           github-token: ${{ secrets.RUFF_PRE_COMMIT_PAT }}
           script: |

.github/workflows/sync_typeshed.yaml

@@ -1,80 +0,0 @@
-name: Sync typeshed
-
-on:
-  workflow_dispatch:
-  schedule:
-    # Run on the 1st and the 15th of every month:
-    - cron: "0 0 1,15 * *"
-
-env:
-  FORCE_COLOR: 1
-  GH_TOKEN: ${{ github.token }}
-
-jobs:
-  sync:
-    name: Sync typeshed
-    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' }}
-    permissions:
-      contents: write
-      pull-requests: write
-    steps:
-      - uses: actions/checkout@v4
-        name: Checkout Ruff
-        with:
-          path: ruff
-      - uses: actions/checkout@v4
-        name: Checkout typeshed
-        with:
-          repository: python/typeshed
-          path: typeshed
-      - name: Setup git
-        run: |
-          git config --global user.name typeshedbot
-          git config --global user.email '<>'
-      - name: Sync typeshed
-        id: sync
-        run: |
-          rm -rf ruff/crates/red_knot/vendor/typeshed
-          mkdir ruff/crates/red_knot/vendor/typeshed
-          cp typeshed/README.md ruff/crates/red_knot/vendor/typeshed
-          cp typeshed/LICENSE ruff/crates/red_knot/vendor/typeshed
-          cp -r typeshed/stdlib ruff/crates/red_knot/vendor/typeshed/stdlib
-          rm -rf ruff/crates/red_knot/vendor/typeshed/stdlib/@tests
-          git -C typeshed rev-parse HEAD > ruff/crates/red_knot/vendor/typeshed/source_commit.txt
-      - name: Commit the changes
-        id: commit
-        if: ${{ steps.sync.outcome == 'success' }}
-        run: |
-          cd ruff
-          git checkout -b typeshedbot/sync-typeshed
-          git add .
-          git diff --staged --quiet || git commit -m "Sync typeshed. Source commit: https://github.com/python/typeshed/commit/$(git -C ../typeshed rev-parse HEAD)"
-      - name: Create a PR
-        if: ${{ steps.sync.outcome == 'success' && steps.commit.outcome == 'success' }}
-        run: |
-          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"
-
-  create-issue-on-failure:
-    name: Create an issue if the typeshed sync failed
-    runs-on: ubuntu-latest
-    needs: [sync]
-    if: ${{ github.repository == 'astral-sh/ruff' && always() && github.event_name == 'schedule' && needs.sync.result == 'failure' }}
-    permissions:
-      issues: write
-    steps:
-      - uses: actions/github-script@v7
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          script: |
-            await github.rest.issues.create({
-              owner: "astral-sh",
-              repo: "ruff",
-              title: `Automated typeshed sync failed on ${new Date().toDateString()}`,
-              body: "Runs are listed here: https://github.com/astral-sh/ruff/actions/workflows/sync_typeshed.yaml",
-            })

.gitignore

@@ -92,7 +92,6 @@ coverage.xml
 .hypothesis/
 .pytest_cache/
 cover/
-repos/
 
 # Translations
 *.mo

.markdownlint.yaml

@@ -17,4 +17,4 @@ MD013: false
 # MD024/no-duplicate-heading
 MD024:
   # Allow when nested under different parents e.g. CHANGELOG.md
-  siblings_only: true
+  allow_different_nesting: true

.pre-commit-config.yaml

@@ -2,10 +2,9 @@ fail_fast: true
 
 exclude: |
   (?x)^(
-    crates/red_knot/vendor/.*|
     crates/ruff_linter/resources/.*|
     crates/ruff_linter/src/rules/.*/snapshots/.*|
-    crates/ruff/resources/.*|
+    crates/ruff_cli/resources/.*|
     crates/ruff_python_formatter/resources/.*|
     crates/ruff_python_formatter/tests/snapshots/.*|
     crates/ruff_python_resolver/resources/.*|
@@ -14,12 +13,12 @@ exclude: |
 
 repos:
   - repo: https://github.com/abravalheri/validate-pyproject
-    rev: v0.17
+    rev: v0.12.1
     hooks:
       - id: validate-pyproject
 
   - repo: https://github.com/executablebooks/mdformat
-    rev: 0.7.17
+    rev: 0.7.16
     hooks:
       - id: mdformat
         additional_dependencies:
@@ -27,22 +26,16 @@ repos:
           - mdformat-admon
         exclude: |
           (?x)^(
-            docs/formatter/black\.md
-            | docs/\w+\.md
+            docs/formatter/black.md
           )$
 
   - repo: https://github.com/igorshubovych/markdownlint-cli
-    rev: v0.40.0
+    rev: v0.33.0
     hooks:
       - id: markdownlint-fix
-        exclude: |
-          (?x)^(
-            docs/formatter/black\.md
-            | docs/\w+\.md
-          )$
 
   - repo: https://github.com/crate-ci/typos
-    rev: v1.21.0
+    rev: v1.14.12
     hooks:
       - id: typos
 
@@ -56,7 +49,7 @@ repos:
         pass_filenames: false # This makes it a lot faster
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.4.4
+    rev: v0.1.3
     hooks:
       - id: ruff-format
       - id: ruff
@@ -71,7 +64,7 @@ repos:
 
   # Prettier
   - repo: https://github.com/pre-commit/mirrors-prettier
-    rev: v3.1.0
+    rev: v3.0.0
     hooks:
       - id: prettier
         types: [yaml]

BREAKING_CHANGES.md

@@ -1,93 +1,5 @@
 # Breaking Changes
 
-## 0.3.0
-
-### Ruff 2024.2 style
-
-The formatter now formats code according to the Ruff 2024.2 style guide. Read the [changelog](./CHANGELOG.md#030) for a detailed list of stabilized style changes.
-
-### `isort`: Use one blank line after imports in typing stub files ([#9971](https://github.com/astral-sh/ruff/pull/9971))
-
-Previously, Ruff used one or two blank lines (or the number configured by `isort.lines-after-imports`) after imports in typing stub files (`.pyi` files).
-The [typing style guide for stubs](https://typing.readthedocs.io/en/latest/source/stubs.html#style-guide) recommends using at most 1 blank line for grouping.
-As of this release, `isort` now always uses one blank line after imports in stub files, the same as the formatter.
-
-### `build` is no longer excluded by default ([#10093](https://github.com/astral-sh/ruff/pull/10093))
-
-Ruff maintains a list of directories and files that are excluded by default. This list now consists of the following patterns:
-
-- `.bzr`
-- `.direnv`
-- `.eggs`
-- `.git`
-- `.git-rewrite`
-- `.hg`
-- `.ipynb_checkpoints`
-- `.mypy_cache`
-- `.nox`
-- `.pants.d`
-- `.pyenv`
-- `.pytest_cache`
-- `.pytype`
-- `.ruff_cache`
-- `.svn`
-- `.tox`
-- `.venv`
-- `.vscode`
-- `__pypackages__`
-- `_build`
-- `buck-out`
-- `dist`
-- `node_modules`
-- `site-packages`
-- `venv`
-
-Previously, the `build` directory was included in this list. However, the `build` directory tends to be a not-unpopular directory
-name, and excluding it by default caused confusion. Ruff now no longer excludes `build` except if it is excluded by a `.gitignore` file
-or because it is listed in `extend-exclude`.
-
-### `--format` is no longer a valid `rule` or `linter` command option
-
-Previously, `ruff rule` and `ruff linter` accepted the `--format <FORMAT>` option as an alias for `--output-format`. Ruff no longer
-supports this alias. Please use `ruff rule --output-format <FORMAT>` and `ruff linter --output-format <FORMAT>` instead.
-
-## 0.1.9
-
-### `site-packages` is now excluded by default ([#5513](https://github.com/astral-sh/ruff/pull/5513))
-
-Ruff maintains a list of default exclusions, which now consists of the following patterns:
-
-- `.bzr`
-- `.direnv`
-- `.eggs`
-- `.git-rewrite`
-- `.git`
-- `.hg`
-- `.ipynb_checkpoints`
-- `.mypy_cache`
-- `.nox`
-- `.pants.d`
-- `.pyenv`
-- `.pytest_cache`
-- `.pytype`
-- `.ruff_cache`
-- `.svn`
-- `.tox`
-- `.venv`
-- `.vscode`
-- `__pypackages__`
-- `_build`
-- `buck-out`
-- `build`
-- `dist`
-- `node_modules`
-- `site-packages`
-- `venv`
-
-Previously, the `site-packages` directory was not excluded by default. While `site-packages` tends
-to be excluded anyway by virtue of the `.venv` exclusion, this may not be the case when using Ruff
-from VS Code outside a virtual environment.
-
 ## 0.1.0
 
 ### The deprecated `format` setting has been removed

CODE_OF_CONDUCT.md

@@ -72,7 +72,7 @@ representative at an online or offline event.
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
 reported to the community leaders responsible for enforcement at
-<charlie.r.marsh@gmail.com>.
+charlie.r.marsh@gmail.com.
 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

@@ -26,25 +26,30 @@ Welcome! We're happy to have you here. Thank you in advance for your contributio
 - [`cargo dev`](#cargo-dev)
 - [Subsystems](#subsystems)
     - [Compilation Pipeline](#compilation-pipeline)
-    - [Import Categorization](#import-categorization)
-        - [Project root](#project-root)
-        - [Package root](#package-root)
-        - [Import categorization](#import-categorization-1)
 
 ## The Basics
 
-Ruff welcomes contributions in the form of pull requests.
+Ruff welcomes contributions in the form of Pull Requests.
 
 For small changes (e.g., bug fixes), feel free to submit a PR.
 
 For larger changes (e.g., new lint rules, new functionality, new configuration options), consider
 creating an [**issue**](https://github.com/astral-sh/ruff/issues) outlining your proposed change.
-You can also join us on [Discord](https://discord.com/invite/astral-sh) to discuss your idea with the
+You can also join us on [**Discord**](https://discord.gg/c9MhzV8aU5) to discuss your idea with the
 community. We've labeled [beginner-friendly tasks](https://github.com/astral-sh/ruff/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22)
 in the issue tracker, along with [bugs](https://github.com/astral-sh/ruff/issues?q=is%3Aissue+is%3Aopen+label%3Abug)
 and [improvements](https://github.com/astral-sh/ruff/issues?q=is%3Aissue+is%3Aopen+label%3Aaccepted)
 that are ready for contributions.
 
+If you're looking for a place to start, we recommend implementing a new lint rule (see:
+[_Adding a new lint rule_](#example-adding-a-new-lint-rule), which will allow you to learn from and
+pattern-match against the examples in the existing codebase. Many lint rules are inspired by
+existing Python plugins, which can be used as a reference implementation.
+
+As a concrete example: consider taking on one of the rules from the [`flake8-pyi`](https://github.com/astral-sh/ruff/issues/848)
+plugin, and looking to the originating [Python source](https://github.com/PyCQA/flake8-pyi) for
+guidance.
+
 If you have suggestions on how we might improve the contributing documentation, [let us know](https://github.com/astral-sh/ruff/discussions/5693)!
 
 ### Prerequisites
@@ -58,7 +63,7 @@ You'll also need [Insta](https://insta.rs/docs/) to update snapshot tests:
 cargo install cargo-insta
 ```
 
-And you'll need pre-commit to run some validation checks:
+and pre-commit to run some validation checks:
 
 ```shell
 pipx install pre-commit  # or `pip install pre-commit` if you have a virtualenv
@@ -71,22 +76,12 @@ when making a commit:
 pre-commit install
 ```
 
-We recommend [nextest](https://nexte.st/) to run Ruff's test suite (via `cargo nextest run`),
-though it's not strictly necessary:
-
-```shell
-cargo install cargo-nextest --locked
-```
-
-Throughout this guide, any usages of `cargo test` can be replaced with `cargo nextest run`,
-if you choose to install `nextest`.
-
 ### Development
 
 After cloning the repository, run Ruff locally from the repository root with:
 
 ```shell
-cargo run -p ruff -- check /path/to/file.py --no-cache
+cargo run -p ruff_cli -- check /path/to/file.py --no-cache
 ```
 
 Prior to opening a pull request, ensure that your code has been auto-formatted,
@@ -98,7 +93,7 @@ RUFF_UPDATE_SCHEMA=1 cargo test  # Rust testing and updating ruff.schema.json
 pre-commit run --all-files --show-diff-on-failure  # Rust and Python formatting, Markdown and Python linting, etc.
 ```
 
-These checks will run on GitHub Actions when you open your pull request, but running them locally
+These checks will run on GitHub Actions when you open your Pull Request, but running them locally
 will save you time and expedite the merge process.
 
 Note that many code changes also require updating the snapshot tests, which is done interactively
@@ -108,14 +103,7 @@ after running `cargo test` like so:
 cargo insta review
 ```
 
-If your pull request relates to a specific lint rule, include the category and rule code in the
-title, as in the following examples:
-
-- \[`flake8-bugbear`\] Avoid false positive for usage after `continue` (`B031`)
-- \[`flake8-simplify`\] Detect implicit `else` cases in `needless-bool` (`SIM103`)
-- \[`pycodestyle`\] Implement `redundant-backslash` (`E502`)
-
-Your pull request will be reviewed by a maintainer, which may involve a few rounds of iteration
+Your Pull Request will be reviewed by a maintainer, which may involve a few rounds of iteration
 prior to merging.
 
 ### Project Structure
@@ -123,8 +111,8 @@ prior to merging.
 Ruff is structured as a monorepo with a [flat crate structure](https://matklad.github.io/2021/08/22/large-rust-workspaces.html),
 such that all crates are contained in a flat `crates` directory.
 
-The vast majority of the code, including all lint rules, lives in the `ruff_linter` crate (located
-at `crates/ruff_linter`). As a contributor, that's the crate that'll be most relevant to you.
+The vast majority of the code, including all lint rules, lives in the `ruff` crate (located at
+`crates/ruff_linter`). As a contributor, that's the crate that'll be most relevant to you.
 
 At the time of writing, the repository includes the following crates:
 
@@ -132,7 +120,7 @@ At the time of writing, the repository includes the following crates:
     If you're working on a rule, this is the crate for you.
 - `crates/ruff_benchmark`: binary crate for running micro-benchmarks.
 - `crates/ruff_cache`: library crate for caching lint results.
-- `crates/ruff`: binary crate containing Ruff's command-line interface.
+- `crates/ruff_cli`: binary crate containing Ruff's command-line interface.
 - `crates/ruff_dev`: binary crate containing utilities used in the development of Ruff itself (e.g.,
     `cargo dev generate-all`), see the [`cargo dev`](#cargo-dev) section below.
 - `crates/ruff_diagnostics`: library crate for the rule-independent abstractions in the lint
@@ -197,14 +185,11 @@ and calling out to lint rule analyzer functions as it goes.
 If you need to inspect the AST, you can run `cargo dev print-ast` with a Python file. Grep
 for the `Diagnostic::new` invocations to understand how other, similar rules are implemented.
 
-Once you're satisfied with your code, add tests for your rule
-(see: [rule testing](#rule-testing-fixtures-and-snapshots)), and regenerate the documentation and
-associated assets (like our JSON Schema) with `cargo dev generate-all`.
+Once you're satisfied with your code, add tests for your rule. See [rule testing](#rule-testing-fixtures-and-snapshots)
+for more details.
 
-Finally, submit a pull request, and include the category, rule name, and rule code in the title, as
-in:
-
-> \[`pycodestyle`\] Implement `redundant-backslash` (`E502`)
+Finally, regenerate the documentation and other generated assets (like our JSON Schema) with:
+`cargo dev generate-all`.
 
 #### Rule naming convention
 
@@ -246,7 +231,7 @@ Once you've completed the code for the rule itself, you can define tests with th
     For example, if you're adding a new rule named `E402`, you would run:
 
     ```shell
-    cargo run -p ruff -- check crates/ruff_linter/resources/test/fixtures/pycodestyle/E402.py --no-cache --preview --select E402
+    cargo run -p ruff_cli -- check crates/ruff_linter/resources/test/fixtures/pycodestyle/E402.py --no-cache --select E402
     ```
 
     **Note:** Only a subset of rules are enabled by default. When testing a new rule, ensure that
@@ -267,7 +252,7 @@ Once you've completed the code for the rule itself, you can define tests with th
 
 Ruff's user-facing settings live in a few different places.
 
-First, the command-line options are defined via the `Args` struct in `crates/ruff/src/args.rs`.
+First, the command-line options are defined via the `Args` struct in `crates/ruff_cli/src/args.rs`.
 
 Second, the `pyproject.toml` options are defined in `crates/ruff_workspace/src/options.rs` (via the
 `Options` struct), `crates/ruff_workspace/src/configuration.rs` (via the `Configuration` struct),
@@ -310,14 +295,14 @@ To preview any changes to the documentation locally:
 
     ```shell
     # For contributors.
-    mkdocs serve -f mkdocs.public.yml
+    mkdocs serve -f mkdocs.generated.yml
 
     # For members of the Astral org, which has access to MkDocs Insiders via sponsorship.
     mkdocs serve -f mkdocs.insiders.yml
     ```
 
 The documentation should then be available locally at
-[http://127.0.0.1:8000/ruff/](http://127.0.0.1:8000/ruff/).
+[http://127.0.0.1:8000/docs/](http://127.0.0.1:8000/docs/).
 
 ## Release Process
 
@@ -330,41 +315,23 @@ even patch releases may contain [non-backwards-compatible changes](https://semve
 
 ### Creating a new release
 
-1. Install `uv`: `curl -LsSf https://astral.sh/uv/install.sh | sh`
-1. Run `./scripts/release/bump.sh`; this command will:
-    - Generate a temporary virtual environment with `rooster`
-    - Generate a changelog entry in `CHANGELOG.md`
-    - Update versions in `pyproject.toml` and `Cargo.toml`
-    - Update references to versions in the `README.md` and documentation
-    - Display contributors for the release
-1. The changelog should then be editorialized for consistency
-    - 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
-1. Highlight any breaking changes in `BREAKING_CHANGES.md`
-1. Run `cargo check`. This should update the lock file with new versions.
-1. Create a pull request with the changelog and version updates
+1. Update the version with `rg 0.0.269 --files-with-matches | xargs sed -i 's/0.0.269/0.0.270/g'`
+1. Update `BREAKING_CHANGES.md`
+1. Create a PR with the version and `BREAKING_CHANGES.md` updated
 1. Merge the PR
-1. Run the [release workflow](https://github.com/astral-sh/ruff/actions/workflows/release.yaml) with:
-    - The new version number (without starting `v`)
-    - The commit hash of the merged release pull request on `main`
+1. Run the release workflow with the version number (without starting `v`) as input. Make sure
+    main has your merged PR as last commit
 1. The release workflow will do the following:
     1. Build all the assets. If this fails (even though we tested in step 4), we haven't tagged or
         uploaded anything, you can restart after pushing a fix.
     1. Upload to PyPI.
     1. Create and push the Git tag (as extracted from `pyproject.toml`). We create the Git tag only
-        after building the wheels and uploading to PyPI, since we can't delete or modify the tag ([#4468](https://github.com/astral-sh/ruff/issues/4468)).
+        after building the wheels and uploading to PyPI, since we can't delete or modify the tag ([#4468](https://github.com/charliermarsh/ruff/issues/4468)).
     1. Attach artifacts to draft GitHub release
     1. Trigger downstream repositories. This can fail non-catastrophically, as we can run any
         downstream jobs manually if needed.
-1. Publish the GitHub release
-    1. Open the draft release in the GitHub release section
-    1. Copy the changelog for the release into the GitHub release
-        - See previous releases for formatting of section headers
-    1. Append the contributors from the `bump.sh` script
-1. If needed, [update the schemastore](https://github.com/astral-sh/ruff/blob/main/scripts/update_schemastore.py).
-    1. One can determine if an update is needed when
-        `git diff old-version-tag new-version-tag -- ruff.schema.json` returns a non-empty diff.
-    1. Once run successfully, you should follow the link in the output to create a PR.
+1. Create release notes in GitHub UI and promote from draft.
+1. If needed, [update the schemastore](https://github.com/charliermarsh/ruff/blob/main/scripts/update_schemastore.py)
 1. If needed, update the `ruff-lsp` and `ruff-vscode` repositories.
 
 ## Ecosystem CI
@@ -385,14 +352,9 @@ See the [ruff-ecosystem package](https://github.com/astral-sh/ruff/tree/main/pyt
 We have several ways of benchmarking and profiling Ruff:
 
 - Our main performance benchmark comparing Ruff with other tools on the CPython codebase
-- Microbenchmarks which run the linter or the formatter on individual files. These run on pull requests.
+- Microbenchmarks which the linter or the formatter on individual files. There run on pull requests.
 - Profiling the linter on either the microbenchmarks or entire projects
 
-> \[!NOTE\]
-> When running benchmarks, ensure that your CPU is otherwise idle (e.g., close any background
-> applications, like web browsers). You may also want to switch your CPU to a "performance"
-> mode, if it exists, especially when benchmarking short-lived processes.
-
 ### CPython Benchmark
 
 First, clone [CPython](https://github.com/python/cpython). It's a large and diverse Python codebase,
@@ -538,10 +500,10 @@ if the benchmark improved/regressed compared to that baseline.
 
 ```shell
 # Run once on your "baseline" code
-cargo bench -p ruff_benchmark -- --save-baseline=main
+cargo benchmark --save-baseline=main
 
 # Then iterate with
-cargo bench -p ruff_benchmark -- --baseline=main
+cargo benchmark --baseline=main
 ```
 
 #### PR Summary
@@ -551,10 +513,10 @@ This is useful to illustrate the improvements of a PR.
 
 ```shell
 # On main
-cargo bench -p ruff_benchmark -- --save-baseline=main
+cargo benchmark --save-baseline=main
 
 # After applying your changes
-cargo bench -p ruff_benchmark -- --save-baseline=pr
+cargo benchmark --save-baseline=pr
 
 critcmp main pr
 ```
@@ -567,10 +529,10 @@ cargo install critcmp
 
 #### Tips
 
-- Use `cargo bench -p ruff_benchmark <filter>` to only run specific benchmarks. For example: `cargo benchmark lexer`
-    to only run the lexer benchmarks.
-- Use `cargo bench -p ruff_benchmark -- --quiet` for a more cleaned up output (without statistical relevance)
-- Use `cargo bench -p ruff_benchmark -- --quick` to get faster results (more prone to noise)
+- Use `cargo benchmark <filter>` to only run specific benchmarks. For example: `cargo benchmark linter/pydantic`
+    to only run the pydantic tests.
+- Use `cargo benchmark --quiet` for a more cleaned up output (without statistical relevance)
+- Use `cargo benchmark --quick` to get faster results (more prone to noise)
 
 ### Profiling Projects
 
@@ -581,10 +543,10 @@ examples.
 
 #### Linux
 
-Install `perf` and build `ruff_benchmark` with the `profiling` profile and then run it with perf
+Install `perf` and build `ruff_benchmark` with the `release-debug` profile and then run it with perf
 
 ```shell
-cargo bench -p ruff_benchmark --no-run --profile=profiling && perf record --call-graph dwarf -F 9999 cargo bench -p ruff_benchmark --profile=profiling -- --profile-time=1
+cargo bench -p ruff_benchmark --no-run --profile=release-debug && perf record --call-graph dwarf -F 9999 cargo bench -p ruff_benchmark --profile=release-debug -- --profile-time=1
 ```
 
 You can also use the `ruff_dev` launcher to run `ruff check` multiple times on a repository to
@@ -592,8 +554,8 @@ gather enough samples for a good flamegraph (change the 999, the sample rate, an
 of checks, to your liking)
 
 ```shell
-cargo build --bin ruff_dev --profile=profiling
-perf record -g -F 999 target/profiling/ruff_dev repeat --repeat 30 --exit-zero --no-cache path/to/cpython > /dev/null
+cargo build --bin ruff_dev --profile=release-debug
+perf record -g -F 999 target/release-debug/ruff_dev repeat --repeat 30 --exit-zero --no-cache path/to/cpython > /dev/null
 ```
 
 Then convert the recorded profile
@@ -623,7 +585,7 @@ cargo install cargo-instruments
 Then run the profiler with
 
 ```shell
-cargo instruments -t time --bench linter --profile profiling -p ruff_benchmark -- --profile-time=1
+cargo instruments -t time --bench linter --profile release-debug -p ruff_benchmark -- --profile-time=1
 ```
 
 - `-t`: Specifies what to profile. Useful options are `time` to profile the wall time and `alloc`
@@ -637,11 +599,11 @@ Otherwise, follow the instructions from the linux section.
 `cargo dev` is a shortcut for `cargo run --package ruff_dev --bin ruff_dev`. You can run some useful
 utils with it:
 
-- `cargo dev print-ast <file>`: Print the AST of a python file using Ruff's
-    [Python parser](https://github.com/astral-sh/ruff/tree/main/crates/ruff_python_parser).
-    For `if True: pass # comment`, you can see the syntax tree, the byte offsets for start and
-    stop of each node and also how the `:` token, the comment and whitespace are not represented
-    anymore:
+- `cargo dev print-ast <file>`: Print the AST of a python file using the
+    [RustPython parser](https://github.com/astral-sh/RustPython-Parser/tree/main/parser) that is
+    mainly used in Ruff. For `if True: pass # comment`, you can see the syntax tree, the byte offsets
+    for start and stop of each node and also how the `:` token, the comment and whitespace are not
+    represented anymore:
 
 ```text
 [
@@ -814,8 +776,8 @@ To understand Ruff's import categorization system, we first need to define two c
     "project root".)
 - "Package root": The top-most directory defining the Python package that includes a given Python
     file. To find the package root for a given Python file, traverse up its parent directories until
-    you reach a parent directory that doesn't contain an `__init__.py` file (and isn't in a subtree
-    marked as a [namespace package](https://docs.astral.sh/ruff/settings/#namespace-packages)); take the directory
+    you reach a parent directory that doesn't contain an `__init__.py` file (and isn't marked as
+    a [namespace package](https://docs.astral.sh/ruff/settings/#namespace-packages)); take the directory
     just before that, i.e., the first directory in the package.
 
 For example, given:

Cargo.toml

@@ -12,182 +12,51 @@ authors = ["Charlie Marsh <charlie.r.marsh@gmail.com>"]
 license = "MIT"
 
 [workspace.dependencies]
-ruff = { path = "crates/ruff" }
-ruff_cache = { path = "crates/ruff_cache" }
-ruff_diagnostics = { path = "crates/ruff_diagnostics" }
-ruff_formatter = { path = "crates/ruff_formatter" }
-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_python_ast = { path = "crates/ruff_python_ast" }
-ruff_python_codegen = { path = "crates/ruff_python_codegen" }
-ruff_python_formatter = { path = "crates/ruff_python_formatter" }
-ruff_python_index = { path = "crates/ruff_python_index" }
-ruff_python_literal = { path = "crates/ruff_python_literal" }
-ruff_python_parser = { path = "crates/ruff_python_parser" }
-ruff_python_semantic = { path = "crates/ruff_python_semantic" }
-ruff_python_stdlib = { path = "crates/ruff_python_stdlib" }
-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" }
-ruff_workspace = { path = "crates/ruff_workspace" }
-
-aho-corasick = { version = "1.1.3" }
-annotate-snippets = { version = "0.9.2", features = ["color"] }
-anyhow = { version = "1.0.80" }
-argfile = { version = "0.2.0" }
-bincode = { version = "1.3.3" }
-bitflags = { version = "2.5.0" }
-bstr = { version = "1.9.1" }
-cachedir = { version = "0.3.1" }
-chrono = { version = "0.4.35", default-features = false, features = ["clock"] }
-clap = { version = "4.5.3", features = ["derive"] }
-clap_complete_command = { version = "0.5.1" }
-clearscreen = { version = "3.0.0" }
-codspeed-criterion-compat = { version = "2.6.0", default-features = false }
-colored = { version = "2.1.0" }
-console_error_panic_hook = { version = "0.1.7" }
-console_log = { version = "1.0.0" }
-countme = { version = "3.0.1" }
-criterion = { version = "0.5.1", default-features = false }
-crossbeam = { version = "0.8.4" }
-dashmap = { version = "5.5.3" }
-dirs = { version = "5.0.0" }
-drop_bomb = { version = "0.1.5" }
-env_logger = { version = "0.11.0" }
-fern = { version = "0.6.1" }
-filetime = { version = "0.2.23" }
+anyhow = { version = "1.0.69" }
+bitflags = { version = "2.3.1" }
+chrono = { version = "0.4.31", default-features = false, features = ["clock"] }
+clap = { version = "4.4.7", features = ["derive"] }
+colored = { version = "2.0.0" }
+filetime = { version = "0.2.20" }
 glob = { version = "0.3.1" }
-globset = { version = "0.4.14" }
-hashbrown = "0.14.3"
-hexf-parse = { version = "0.2.1" }
-ignore = { version = "0.4.22" }
-imara-diff = { version = "0.1.5" }
-imperative = { version = "1.0.4" }
-indexmap = { version = "2.2.6" }
-indicatif = { version = "0.17.8" }
-indoc = { version = "2.0.4" }
-insta = { version = "1.35.1", feature = ["filters", "glob"] }
-insta-cmd = { version = "0.6.0" }
-is-macro = { version = "0.3.5" }
-is-wsl = { version = "0.4.0" }
-itertools = { version = "0.12.1" }
-js-sys = { version = "0.3.69" }
-jod-thread = { version = "0.1.2" }
-lexical-parse-float = { version = "0.8.0", features = ["format"] }
-libc = { version = "0.2.153" }
+globset = { version = "0.4.10" }
+ignore = { version = "0.4.20" }
+insta = { version = "1.34.0", feature = ["filters", "glob"] }
+is-macro = { version = "0.3.0" }
+itertools = { version = "0.11.0" }
 libcst = { version = "1.1.0", default-features = false }
 log = { version = "0.4.17" }
-lsp-server = { version = "0.7.6" }
-lsp-types = { version = "0.95.0", features = ["proposed"] }
-matchit = { version = "0.8.1" }
-memchr = { version = "2.7.1" }
-mimalloc = { version = "0.1.39" }
-natord = { version = "1.0.9" }
-notify = { version = "6.1.1" }
-once_cell = { version = "1.19.0" }
+memchr = { version = "2.6.4" }
+once_cell = { version = "1.17.1" }
 path-absolutize = { version = "3.1.1" }
-path-slash = { version = "0.2.1" }
-pathdiff = { version = "0.2.1" }
-parking_lot = "0.12.1"
-pep440_rs = { version = "0.6.0", features = ["serde"] }
-pretty_assertions = "1.3.0"
-proc-macro2 = { version = "1.0.79" }
-pyproject-toml = { version = "0.9.0" }
-quick-junit = { version = "0.4.0" }
+proc-macro2 = { version = "1.0.69" }
 quote = { version = "1.0.23" }
-rand = { version = "0.8.5" }
-rayon = { version = "1.10.0" }
 regex = { version = "1.10.2" }
-result-like = { version = "0.5.0" }
 rustc-hash = { version = "1.1.0" }
-schemars = { version = "0.8.16" }
-seahash = { version = "4.1.0" }
-serde = { version = "1.0.197", features = ["derive"] }
-serde-wasm-bindgen = { version = "0.6.4" }
-serde_json = { version = "1.0.113" }
-serde_test = { version = "1.0.152" }
-serde_with = { version = "3.6.0", default-features = false, features = ["macros"] }
+schemars = { version = "0.8.15" }
+serde = { version = "1.0.190", features = ["derive"] }
+serde_json = { version = "1.0.107" }
 shellexpand = { version = "3.0.0" }
-similar = { version = "2.4.0", features = ["inline"] }
-smallvec = { version = "1.13.2" }
+similar = { version = "2.3.0", features = ["inline"] }
+smallvec = { version = "1.11.1" }
 static_assertions = "1.1.0"
-strum = { version = "0.26.0", features = ["strum_macros"] }
-strum_macros = { version = "0.26.0" }
-syn = { version = "2.0.55" }
-tempfile = { version = "3.9.0" }
-test-case = { version = "3.3.1" }
-thiserror = { version = "1.0.58" }
-tikv-jemallocator = { version = "0.5.0" }
-toml = { version = "0.8.11" }
+strum = { version = "0.25.0", features = ["strum_macros"] }
+strum_macros = { version = "0.25.3" }
+syn = { version = "2.0.38" }
+test-case = { version = "3.2.1" }
+thiserror = { version = "1.0.50" }
+toml = { version = "0.7.8" }
 tracing = { version = "0.1.40" }
-tracing-indicatif = { version = "0.3.6" }
-tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
-tracing-tree = { version = "0.3.0" }
-typed-arena = { version = "2.0.2" }
-unic-ucd-category = { version = "0.9" }
+tracing-indicatif = { version = "0.3.4" }
+tracing-subscriber = { version = "0.3.17", features = ["env-filter"] }
 unicode-ident = { version = "1.0.12" }
+unicode_names2 = { version = "1.2.0" }
 unicode-width = { version = "0.1.11" }
-unicode_names2 = { version = "1.2.2" }
-unicode-normalization = { version = "0.1.23" }
-ureq = { version = "2.9.6" }
-url = { version = "2.5.0" }
-uuid = { version = "1.6.1", features = ["v4", "fast-rng", "macro-diagnostics", "js"] }
-walkdir = { version = "2.3.2" }
-wasm-bindgen = { version = "0.2.92" }
-wasm-bindgen-test = { version = "0.3.42" }
-wild = { version = "2" }
-
-[workspace.lints.rust]
-unsafe_code = "warn"
-unreachable_pub = "warn"
-
-[workspace.lints.clippy]
-pedantic = { level = "warn", priority = -2 }
-# Allowed pedantic lints
-char_lit_as_u8 = "allow"
-collapsible_else_if = "allow"
-collapsible_if = "allow"
-implicit_hasher = "allow"
-map_unwrap_or = "allow"
-match_same_arms = "allow"
-missing_errors_doc = "allow"
-missing_panics_doc = "allow"
-module_name_repetitions = "allow"
-must_use_candidate = "allow"
-similar_names = "allow"
-too_many_lines = "allow"
-# To allow `#[allow(clippy::all)]` in `crates/ruff_python_parser/src/python.rs`.
-needless_raw_string_hashes = "allow"
-# Disallowed restriction lints
-print_stdout = "warn"
-print_stderr = "warn"
-dbg_macro = "warn"
-empty_drop = "warn"
-empty_structs_with_brackets = "warn"
-exit = "warn"
-get_unwrap = "warn"
-rc_buffer = "warn"
-rc_mutex = "warn"
-rest_pat_in_fully_bound_structs = "warn"
+uuid = { version = "1.5.0", features = ["v4", "fast-rng", "macro-diagnostics", "js"] }
+wsl = { version = "0.1.0" }
 
 [profile.release]
-# Note that we set these explicitly, and these values
-# were chosen based on a trade-off between compile times
-# and runtime performance[1].
-#
-# [1]: https://github.com/astral-sh/ruff/pull/9031
-lto = "thin"
-codegen-units = 16
-
-# Some crates don't change as much but benefit more from
-# more expensive optimization passes, so we selectively
-# decrease codegen-units in some cases.
-[profile.release.package.ruff_python_parser]
-codegen-units = 1
-[profile.release.package.ruff_python_ast]
+lto = "fat"
 codegen-units = 1
 
 [profile.dev.package.insta]
@@ -201,8 +70,8 @@ opt-level = 3
 [profile.dev.package.ruff_python_parser]
 opt-level = 1
 
-# Use the `--profile profiling` flag to show symbols in release mode.
-# e.g. `cargo build --profile profiling`
-[profile.profiling]
+# Use the `--profile release-debug` flag to show symbols in release mode.
+# e.g. `cargo build --profile release-debug`
+[profile.release-debug]
 inherits = "release"
 debug = 1

Dockerfile

@@ -1,38 +0,0 @@
-FROM --platform=$BUILDPLATFORM ubuntu as build
-ENV HOME="/root"
-WORKDIR $HOME
-
-RUN apt update && apt install -y build-essential curl python3-venv
-
-# Setup zig as cross compiling linker
-RUN python3 -m venv $HOME/.venv
-RUN .venv/bin/pip install cargo-zigbuild
-ENV PATH="$HOME/.venv/bin:$PATH"
-
-# Install rust
-ARG TARGETPLATFORM
-RUN case "$TARGETPLATFORM" in \
-    "linux/arm64") echo "aarch64-unknown-linux-musl" > rust_target.txt ;; \
-    "linux/amd64") echo "x86_64-unknown-linux-musl" > rust_target.txt ;; \
-    *) exit 1 ;; \
-    esac
-# Update rustup whenever we bump the rust version
-COPY rust-toolchain.toml rust-toolchain.toml
-RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --target $(cat rust_target.txt) --profile minimal --default-toolchain none
-ENV PATH="$HOME/.cargo/bin:$PATH"
-# Installs the correct toolchain version from rust-toolchain.toml and then the musl target
-RUN rustup target add $(cat rust_target.txt)
-
-# Build
-COPY crates crates
-COPY Cargo.toml Cargo.toml
-COPY Cargo.lock Cargo.lock
-RUN cargo zigbuild --bin ruff --target $(cat rust_target.txt) --release
-RUN cp target/$(cat rust_target.txt)/release/ruff /ruff
-# TODO: Optimize binary size, with a version that also works when cross compiling
-# RUN strip --strip-all /ruff
-
-FROM scratch
-COPY --from=build /ruff /ruff
-WORKDIR /io
-ENTRYPOINT ["/ruff"]

README.md

@@ -4,12 +4,11 @@
 
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
 [![image](https://img.shields.io/pypi/v/ruff.svg)](https://pypi.python.org/pypi/ruff)
-[![image](https://img.shields.io/pypi/l/ruff.svg)](https://github.com/astral-sh/ruff/blob/main/LICENSE)
+[![image](https://img.shields.io/pypi/l/ruff.svg)](https://pypi.python.org/pypi/ruff)
 [![image](https://img.shields.io/pypi/pyversions/ruff.svg)](https://pypi.python.org/pypi/ruff)
 [![Actions status](https://github.com/astral-sh/ruff/workflows/CI/badge.svg)](https://github.com/astral-sh/ruff/actions)
-[![Discord](https://img.shields.io/badge/Discord-%235865F2.svg?logo=discord&logoColor=white)](https://discord.com/invite/astral-sh)
 
-[**Docs**](https://docs.astral.sh/ruff/) | [**Playground**](https://play.ruff.rs/)
+[**Discord**](https://discord.gg/c9MhzV8aU5) | [**Docs**](https://docs.astral.sh/ruff/) | [**Playground**](https://play.ruff.rs/)
 
 An extremely fast Python linter and code formatter, written in Rust.
 
@@ -32,7 +31,7 @@ An extremely fast Python linter and code formatter, written in Rust.
 - ⚖️ Drop-in parity with [Flake8](https://docs.astral.sh/ruff/faq/#how-does-ruff-compare-to-flake8), isort, and Black
 - 📦 Built-in caching, to avoid re-analyzing unchanged files
 - 🔧 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
+- 📏 Over [700 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://github.com/astral-sh/ruff-lsp)
@@ -50,13 +49,12 @@ times faster than any individual tool.
 Ruff is extremely actively developed and used in major open-source projects like:
 
 - [Apache Airflow](https://github.com/apache/airflow)
-- [Apache Superset](https://github.com/apache/superset)
 - [FastAPI](https://github.com/tiangolo/fastapi)
 - [Hugging Face](https://github.com/huggingface/transformers)
 - [Pandas](https://github.com/pandas-dev/pandas)
 - [SciPy](https://github.com/scipy/scipy)
 
-...and [many more](#whos-using-ruff).
+...and many more.
 
 Ruff is backed by [Astral](https://astral.sh). Read the [launch post](https://astral.sh/blog/announcing-astral-the-company-behind-ruff),
 or the original [project announcement](https://notes.crmarsh.com/python-tooling-could-be-much-much-faster).
@@ -130,7 +128,7 @@ and with [a variety of other package managers](https://docs.astral.sh/ruff/insta
 To run Ruff as a linter, try any of the following:
 
 ```shell
-ruff check                          # Lint all files in the current directory (and any subdirectories).
+ruff check .                        # Lint all files in the current directory (and any subdirectories).
 ruff check path/to/code/            # Lint all files in `/path/to/code` (and any subdirectories).
 ruff check path/to/code/*.py        # Lint all `.py` files in `/path/to/code`.
 ruff check path/to/code/to/file.py  # Lint `file.py`.
@@ -140,7 +138,7 @@ ruff check @arguments.txt           # Lint using an input file, treating its con
 Or, to run Ruff as a formatter:
 
 ```shell
-ruff format                          # Format all files in the current directory (and any subdirectories).
+ruff format .                        # Format all files in the current directory (and any subdirectories).
 ruff format path/to/code/            # Format all files in `/path/to/code` (and any subdirectories).
 ruff format path/to/code/*.py        # Format all `.py` files in `/path/to/code`.
 ruff format path/to/code/to/file.py  # Format `file.py`.
@@ -150,14 +148,14 @@ ruff format @arguments.txt           # Format using an input file, treating its
 Ruff can also be used as a [pre-commit](https://pre-commit.com/) hook via [`ruff-pre-commit`](https://github.com/astral-sh/ruff-pre-commit):
 
 ```yaml
+# Run the Ruff linter.
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.4.4
+  rev: v0.1.3
   hooks:
-    # Run the linter.
+    # Run the Ruff linter.
     - id: ruff
-      args: [ --fix ]
-    # Run the formatter.
+    # Run the Ruff formatter.
     - id: ruff-format
 ```
 
@@ -174,7 +172,7 @@ jobs:
   ruff:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
       - uses: chartboost/ruff-action@v1
 ```
 
@@ -184,9 +182,10 @@ Ruff can be configured through a `pyproject.toml`, `ruff.toml`, or `.ruff.toml`
 [_Configuration_](https://docs.astral.sh/ruff/configuration/), or [_Settings_](https://docs.astral.sh/ruff/settings/)
 for a complete list of all configuration options).
 
-If left unspecified, Ruff's default configuration is equivalent to the following `ruff.toml` file:
+If left unspecified, Ruff's default configuration is equivalent to:
 
 ```toml
+[tool.ruff]
 # Exclude a variety of commonly ignored directories.
 exclude = [
     ".bzr",
@@ -195,25 +194,20 @@ exclude = [
     ".git",
     ".git-rewrite",
     ".hg",
-    ".ipynb_checkpoints",
     ".mypy_cache",
     ".nox",
     ".pants.d",
-    ".pyenv",
-    ".pytest_cache",
     ".pytype",
     ".ruff_cache",
     ".svn",
     ".tox",
     ".venv",
-    ".vscode",
     "__pypackages__",
     "_build",
     "buck-out",
     "build",
     "dist",
     "node_modules",
-    "site-packages",
     "venv",
 ]
 
@@ -224,7 +218,7 @@ indent-width = 4
 # Assume Python 3.8
 target-version = "py38"
 
-[lint]
+[tool.ruff.lint]
 # Enable Pyflakes (`F`) and a subset of the pycodestyle (`E`)  codes by default.
 select = ["E4", "E7", "E9", "F"]
 ignore = []
@@ -236,7 +230,7 @@ unfixable = []
 # Allow unused variables when underscore-prefixed.
 dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
 
-[format]
+[tool.ruff.format]
 # Like Black, use double quotes for strings.
 quote-style = "double"
 
@@ -250,27 +244,13 @@ skip-magic-trailing-comma = false
 line-ending = "auto"
 ```
 
-Note that, in a `pyproject.toml`, each section header should be prefixed with `tool.ruff`. For
-example, `[lint]` should be replaced with `[tool.ruff.lint]`.
-
-Some configuration options can be provided via dedicated command-line arguments, such as those
-related to rule enablement and disablement, file discovery, and logging level:
+Some configuration options can be provided via the command-line, such as those related to
+rule enablement and disablement, file discovery, and logging level:
 
 ```shell
-ruff check --select F401 --select F403 --quiet
+ruff check path/to/code/ --select F401 --select F403 --quiet
 ```
 
-The remaining configuration options can be provided through a catch-all `--config` argument:
-
-```shell
-ruff check --config "lint.per-file-ignores = {'some_file.py' = ['F841']}"
-```
-
-To opt in to the latest lint rules, formatter style changes, interface updates, and more, enable
-[preview mode](https://docs.astral.sh/ruff/rules/) by setting `preview = true` in your configuration
-file or passing `--preview` on the command line. Preview mode enables a collection of unstable
-features that may change prior to stabilization.
-
 See `ruff help` for more on Ruff's top-level commands, or `ruff help check` and `ruff help format`
 for more on the linting and formatting commands, respectively.
 
@@ -278,7 +258,7 @@ for more on the linting and formatting commands, respectively.
 
 <!-- Begin section: Rules -->
 
-**Ruff supports over 800 lint rules**, many of which are inspired by popular tools like Flake8,
+**Ruff supports over 700 lint rules**, many of which are inspired by popular tools like Flake8,
 isort, pyupgrade, and others. Regardless of the rule's origin, Ruff re-implements every rule in
 Rust as a first-party feature.
 
@@ -356,14 +336,14 @@ For a complete enumeration of the supported rules, see [_Rules_](https://docs.as
 Contributions are welcome and highly appreciated. To get started, check out the
 [**contributing guidelines**](https://docs.astral.sh/ruff/contributing/).
 
-You can also join us on [**Discord**](https://discord.com/invite/astral-sh).
+You can also join us on [**Discord**](https://discord.gg/c9MhzV8aU5).
 
 ## Support
 
 Having trouble? Check out the existing issues on [**GitHub**](https://github.com/astral-sh/ruff/issues),
 or feel free to [**open a new one**](https://github.com/astral-sh/ruff/issues/new).
 
-You can also ask for help on [**Discord**](https://discord.com/invite/astral-sh).
+You can also ask for help on [**Discord**](https://discord.gg/c9MhzV8aU5).
 
 ## Acknowledgements
 
@@ -393,16 +373,14 @@ Ruff is released under the MIT license.
 
 Ruff is used by a number of major open-source projects and companies, including:
 
-- [Albumentations](https://github.com/albumentations-team/albumentations)
 - Amazon ([AWS SAM](https://github.com/aws/serverless-application-model))
 - Anthropic ([Python SDK](https://github.com/anthropics/anthropic-sdk-python))
 - [Apache Airflow](https://github.com/apache/airflow)
 - AstraZeneca ([Magnus](https://github.com/AstraZeneca/magnus-core))
-- [Babel](https://github.com/python-babel/babel)
 - Benchling ([Refac](https://github.com/benchling/refac))
+- [Babel](https://github.com/python-babel/babel)
 - [Bokeh](https://github.com/bokeh/bokeh)
 - [Cryptography (PyCA)](https://github.com/pyca/cryptography)
-- CERN ([Indico](https://getindico.io/))
 - [DVC](https://github.com/iterative/dvc)
 - [Dagger](https://github.com/dagger/dagger)
 - [Dagster](https://github.com/dagster-io/dagster)
@@ -411,18 +389,15 @@ Ruff is used by a number of major open-source projects and companies, including:
 - [Gradio](https://github.com/gradio-app/gradio)
 - [Great Expectations](https://github.com/great-expectations/great_expectations)
 - [HTTPX](https://github.com/encode/httpx)
-- [Hatch](https://github.com/pypa/hatch)
-- [Home Assistant](https://github.com/home-assistant/core)
 - Hugging Face ([Transformers](https://github.com/huggingface/transformers),
     [Datasets](https://github.com/huggingface/datasets),
     [Diffusers](https://github.com/huggingface/diffusers))
+- [Hatch](https://github.com/pypa/hatch)
+- [Home Assistant](https://github.com/home-assistant/core)
 - ING Bank ([popmon](https://github.com/ing-bank/popmon), [probatus](https://github.com/ing-bank/probatus))
 - [Ibis](https://github.com/ibis-project/ibis)
-- [ivy](https://github.com/unifyai/ivy)
 - [Jupyter](https://github.com/jupyter-server/jupyter_server)
-- [Kraken Tech](https://kraken.tech/)
 - [LangChain](https://github.com/hwchase17/langchain)
-- [Litestar](https://litestar.dev/)
 - [LlamaIndex](https://github.com/jerryjliu/llama_index)
 - Matrix ([Synapse](https://github.com/matrix-org/synapse))
 - [MegaLinter](https://github.com/oxsecurity/megalinter)
@@ -430,43 +405,35 @@ Ruff is used by a number of major open-source projects and companies, including:
 - Microsoft ([Semantic Kernel](https://github.com/microsoft/semantic-kernel),
     [ONNX Runtime](https://github.com/microsoft/onnxruntime),
     [LightGBM](https://github.com/microsoft/LightGBM))
-- Modern Treasury ([Python SDK](https://github.com/Modern-Treasury/modern-treasury-python))
+- Modern Treasury ([Python SDK](https://github.com/Modern-Treasury/modern-treasury-python-sdk))
 - Mozilla ([Firefox](https://github.com/mozilla/gecko-dev))
 - [Mypy](https://github.com/python/mypy)
 - Netflix ([Dispatch](https://github.com/Netflix/dispatch))
 - [Neon](https://github.com/neondatabase/neon)
-- [Nokia](https://nokia.com/)
 - [NoneBot](https://github.com/nonebot/nonebot2)
-- [NumPyro](https://github.com/pyro-ppl/numpyro)
 - [ONNX](https://github.com/onnx/onnx)
 - [OpenBB](https://github.com/OpenBB-finance/OpenBBTerminal)
 - [PDM](https://github.com/pdm-project/pdm)
 - [PaddlePaddle](https://github.com/PaddlePaddle/Paddle)
 - [Pandas](https://github.com/pandas-dev/pandas)
-- [Pillow](https://github.com/python-pillow/Pillow)
 - [Poetry](https://github.com/python-poetry/poetry)
 - [Polars](https://github.com/pola-rs/polars)
 - [PostHog](https://github.com/PostHog/posthog)
 - Prefect ([Python SDK](https://github.com/PrefectHQ/prefect), [Marvin](https://github.com/PrefectHQ/marvin))
 - [PyInstaller](https://github.com/pyinstaller/pyinstaller)
-- [PyMC](https://github.com/pymc-devs/pymc/)
-- [PyMC-Marketing](https://github.com/pymc-labs/pymc-marketing)
-- [pytest](https://github.com/pytest-dev/pytest)
 - [PyTorch](https://github.com/pytorch/pytorch)
 - [Pydantic](https://github.com/pydantic/pydantic)
 - [Pylint](https://github.com/PyCQA/pylint)
-- [PyVista](https://github.com/pyvista/pyvista)
 - [Reflex](https://github.com/reflex-dev/reflex)
-- [River](https://github.com/online-ml/river)
 - [Rippling](https://rippling.com)
 - [Robyn](https://github.com/sansyrox/robyn)
-- [Saleor](https://github.com/saleor/saleor)
 - Scale AI ([Launch SDK](https://github.com/scaleapi/launch-python-client))
-- [SciPy](https://github.com/scipy/scipy)
 - Snowflake ([SnowCLI](https://github.com/Snowflake-Labs/snowcli))
+- [Saleor](https://github.com/saleor/saleor)
+- [SciPy](https://github.com/scipy/scipy)
 - [Sphinx](https://github.com/sphinx-doc/sphinx)
 - [Stable Baselines3](https://github.com/DLR-RM/stable-baselines3)
-- [Starlette](https://github.com/encode/starlette)
+- [Litestar](https://litestar.dev/)
 - [The Algorithms](https://github.com/TheAlgorithms/Python)
 - [Vega-Altair](https://github.com/altair-viz/altair)
 - WordPress ([Openverse](https://github.com/WordPress/openverse))
@@ -482,7 +449,7 @@ Ruff is used by a number of major open-source projects and companies, including:
 
 ### Show Your Support
 
-If you're using Ruff, consider adding the Ruff badge to your project's `README.md`:
+If you're using Ruff, consider adding the Ruff badge to project's `README.md`:
 
 ```md
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
@@ -504,10 +471,10 @@ If you're using Ruff, consider adding the Ruff badge to your project's `README.m
 
 ## License
 
-This repository is licensed under the [MIT License](https://github.com/astral-sh/ruff/blob/main/LICENSE)
+MIT
 
 <div align="center">
   <a target="_blank" href="https://astral.sh" style="background:none">
-    <img src="https://raw.githubusercontent.com/astral-sh/ruff/main/assets/svg/Astral.svg" alt="Made by Astral">
+    <img src="https://raw.githubusercontent.com/astral-sh/ruff/main/assets/svg/Astral.svg">
   </a>
 </div>

_typos.toml

@@ -1,20 +1,10 @@
 [files]
-# https://github.com/crate-ci/typos/issues/868
-extend-exclude = ["crates/red_knot/vendor/**/*", "**/resources/**/*", "**/snapshots/**/*"]
+extend-exclude = ["resources", "snapshots"]
 
 [default.extend-words]
-"arange" = "arange"  # e.g. `numpy.arange`
 hel = "hel"
 whos = "whos"
 spawnve = "spawnve"
 ned = "ned"
-pn = "pn"  # `import panel as pd` is a thing
 poit = "poit"
 BA = "BA" # acronym for "Bad Allowed", used in testing.
-jod = "jod" # e.g., `jod-thread`
-
-[default]
-extend-ignore-re = [
-  # Line ignore with trailing "spellchecker:disable-line"
-  "(?Rm)^.*#\\s*spellchecker:disable-line$"
-]

clippy.toml

@@ -1,13 +1,7 @@
 doc-valid-idents = [
-  "..",
-  "CodeQL",
-  "FastAPI",
-  "IPython",
-  "LangChain",
-  "LibCST",
-  "McCabe",
-  "NumPy",
-  "SCREAMING_SNAKE_CASE",
-  "SQLAlchemy",
   "StackOverflow",
+  "CodeQL",
+  "IPython",
+  "NumPy",
+  "..",
 ]

crates/flake8_to_ruff/Cargo.toml

@@ -0,0 +1,36 @@
+[package]
+name = "flake8-to-ruff"
+version = "0.1.3"
+description = """
+Convert Flake8 configuration files to Ruff configuration files.
+"""
+authors = { workspace = true }
+edition = { workspace = true }
+rust-version = { workspace = true }
+homepage = { workspace = true }
+documentation = { workspace = true }
+repository = { workspace = true }
+license = { workspace = true }
+
+[dependencies]
+ruff_linter = { path = "../ruff_linter", default-features = false }
+ruff_workspace = { path = "../ruff_workspace" }
+
+anyhow = { workspace = true }
+clap = { workspace = true }
+colored = { workspace = true }
+configparser = { version = "3.0.2" }
+itertools = { workspace = true }
+log = { workspace = true }
+once_cell = { workspace = true }
+pep440_rs = { version = "0.3.12", features = ["serde"] }
+regex = { workspace = true }
+rustc-hash = { workspace = true }
+serde = { workspace = true }
+serde_json = { workspace = true }
+strum = { workspace = true }
+strum_macros = { workspace = true }
+toml = { workspace = true }
+
+[dev-dependencies]
+pretty_assertions = "1.3.0"

crates/flake8_to_ruff/README.md

@@ -0,0 +1,99 @@
+# flake8-to-ruff
+
+Convert existing Flake8 configuration files (`setup.cfg`, `tox.ini`, or `.flake8`) for use with
+[Ruff](https://github.com/astral-sh/ruff).
+
+Generates a Ruff-compatible `pyproject.toml` section.
+
+## Installation and Usage
+
+### Installation
+
+Available as [`flake8-to-ruff`](https://pypi.org/project/flake8-to-ruff/) on PyPI:
+
+```shell
+pip install flake8-to-ruff
+```
+
+### Usage
+
+To run `flake8-to-ruff`:
+
+```shell
+flake8-to-ruff path/to/setup.cfg
+flake8-to-ruff path/to/tox.ini
+flake8-to-ruff path/to/.flake8
+```
+
+`flake8-to-ruff` will print the relevant `pyproject.toml` sections to standard output, like so:
+
+```toml
+[tool.ruff]
+exclude = [
+    '.svn',
+    'CVS',
+    '.bzr',
+    '.hg',
+    '.git',
+    '__pycache__',
+    '.tox',
+    '.idea',
+    '.mypy_cache',
+    '.venv',
+    'node_modules',
+    '_state_machine.py',
+    'test_fstring.py',
+    'bad_coding2.py',
+    'badsyntax_*.py',
+]
+select = [
+    'A',
+    'E',
+    'F',
+    'Q',
+]
+ignore = []
+
+[tool.ruff.flake8-quotes]
+inline-quotes = 'single'
+
+[tool.ruff.pep8-naming]
+ignore-names = [
+    'foo',
+    'bar',
+]
+```
+
+### Plugins
+
+`flake8-to-ruff` will attempt to infer any activated plugins based on the settings provided in your
+configuration file.
+
+For example, if your `.flake8` file includes a `docstring-convention` property, `flake8-to-ruff`
+will enable the appropriate [`flake8-docstrings`](https://pypi.org/project/flake8-docstrings/)
+checks.
+
+Alternatively, you can manually specify plugins on the command-line:
+
+```shell
+flake8-to-ruff path/to/.flake8 --plugin flake8-builtins --plugin flake8-quotes
+```
+
+## Limitations
+
+1. Ruff only supports a subset of the Flake configuration options. `flake8-to-ruff` will warn on and
+    ignore unsupported options in the `.flake8` file (or equivalent). (Similarly, Ruff has a few
+    configuration options that don't exist in Flake8.)
+1. Ruff will omit any rule codes that are unimplemented or unsupported by Ruff, including rule
+    codes from unsupported plugins. (See the
+    [documentation](https://docs.astral.sh/ruff/faq/#how-does-ruff-compare-to-flake8) for the complete
+    list of supported plugins.)
+
+## License
+
+MIT
+
+## Contributing
+
+Contributions are welcome and hugely appreciated. To get started, check out the
+[contributing guidelines](https://github.com/astral-sh/ruff/blob/main/CONTRIBUTING.md).

crates/flake8_to_ruff/examples/cryptography/pyproject.toml

@@ -0,0 +1,65 @@
+[build-system]
+requires = [
+    # The minimum setuptools version is specific to the PEP 517 backend,
+    # and may be stricter than the version required in `setup.cfg`
+    "setuptools>=40.6.0,!=60.9.0",
+    "wheel",
+    # Must be kept in sync with the `install_requirements` in `setup.cfg`
+    "cffi>=1.12; platform_python_implementation != 'PyPy'",
+    "setuptools-rust>=0.11.4",
+]
+build-backend = "setuptools.build_meta"
+
+[tool.black]
+line-length = 79
+target-version = ["py36"]
+
+[tool.pytest.ini_options]
+addopts = "-r s --capture=no --strict-markers --benchmark-disable"
+markers = [
+    "skip_fips: this test is not executed in FIPS mode",
+    "supported: parametrized test requiring only_if and skip_message",
+]
+
+[tool.mypy]
+show_error_codes = true
+check_untyped_defs = true
+no_implicit_reexport = true
+warn_redundant_casts = true
+warn_unused_ignores = true
+warn_unused_configs = true
+strict_equality = true
+
+[[tool.mypy.overrides]]
+module = [
+    "pretend"
+]
+ignore_missing_imports = true
+
+[tool.coverage.run]
+branch = true
+relative_files = true
+source = [
+    "cryptography",
+    "tests/",
+]
+
+[tool.coverage.paths]
+source = [
+   "src/cryptography",
+   "*.tox/*/lib*/python*/site-packages/cryptography",
+   "*.tox\\*\\Lib\\site-packages\\cryptography",
+   "*.tox/pypy/site-packages/cryptography",
+]
+tests =[
+   "tests/",
+   "*tests\\",
+]
+
+[tool.coverage.report]
+exclude_lines = [
+    "@abc.abstractmethod",
+    "@abc.abstractproperty",
+    "@typing.overload",
+    "if typing.TYPE_CHECKING",
+]

crates/flake8_to_ruff/examples/cryptography/setup.cfg

@@ -0,0 +1,91 @@
+[metadata]
+name = cryptography
+version = attr: cryptography.__version__
+description = cryptography is a package which provides cryptographic recipes and primitives to Python developers.
+long_description = file: README.rst
+long_description_content_type = text/x-rst
+license = BSD-3-Clause OR Apache-2.0
+url = https://github.com/pyca/cryptography
+author = The Python Cryptographic Authority and individual contributors
+author_email = cryptography-dev@python.org
+project_urls =
+    Documentation=https://cryptography.io/
+    Source=https://github.com/pyca/cryptography/
+    Issues=https://github.com/pyca/cryptography/issues
+    Changelog=https://cryptography.io/en/latest/changelog/
+classifiers =
+    Development Status :: 5 - Production/Stable
+    Intended Audience :: Developers
+    License :: OSI Approved :: Apache Software License
+    License :: OSI Approved :: BSD License
+    Natural Language :: English
+    Operating System :: MacOS :: MacOS X
+    Operating System :: POSIX
+    Operating System :: POSIX :: BSD
+    Operating System :: POSIX :: Linux
+    Operating System :: Microsoft :: Windows
+    Programming Language :: Python
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3 :: Only
+    Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
+    Programming Language :: Python :: Implementation :: CPython
+    Programming Language :: Python :: Implementation :: PyPy
+    Topic :: Security :: Cryptography
+
+[options]
+python_requires = >=3.6
+include_package_data = True
+zip_safe = False
+package_dir =
+    =src
+packages = find:
+# `install_requires` must be kept in sync with `pyproject.toml`
+install_requires =
+    cffi >=1.12
+
+[options.packages.find]
+where = src
+exclude =
+    _cffi_src
+    _cffi_src.*
+
+[options.extras_require]
+test =
+    pytest>=6.2.0
+    pytest-benchmark
+    pytest-cov
+    pytest-subtests
+    pytest-xdist
+    pretend
+    iso8601
+    pytz
+    hypothesis>=1.11.4,!=3.79.2
+docs =
+    sphinx >= 1.6.5,!=1.8.0,!=3.1.0,!=3.1.1,!=5.2.0,!=5.2.0.post0
+    sphinx_rtd_theme
+docstest =
+    pyenchant >= 1.6.11
+    twine >= 1.12.0
+    sphinxcontrib-spelling >= 4.0.1
+sdist =
+    setuptools_rust >= 0.11.4
+pep8test =
+    black
+    flake8
+    flake8-import-order
+    pep8-naming
+# This extra is for OpenSSH private keys that use bcrypt KDF
+# Versions: v3.1.3 - ignore_few_rounds, v3.1.5 - abi3
+ssh =
+    bcrypt >= 3.1.5
+
+[flake8]
+ignore = E203,E211,W503,W504,N818
+exclude = .tox,*.egg,.git,_build,.hypothesis
+select = E,W,F,N,I
+application-import-names = cryptography,cryptography_vectors,tests

crates/flake8_to_ruff/examples/jupyterhub.ini

@@ -0,0 +1,19 @@
+[flake8]
+# Ignore style and complexity
+# E: style errors
+# W: style warnings
+# C: complexity
+# D: docstring warnings (unused pydocstyle extension)
+# F841: local variable assigned but never used
+ignore = E, C, W, D, F841
+builtins = c, get_config
+exclude =
+    .cache,
+    .github,
+    docs,
+    jupyterhub/alembic*,
+    onbuild,
+    scripts,
+    share,
+    tools,
+    setup.py

crates/flake8_to_ruff/examples/manim.ini

@@ -0,0 +1,43 @@
+[flake8]
+# Exclude the grpc generated code
+exclude = ./manim/grpc/gen/*
+max-complexity = 15
+max-line-length = 88
+statistics = True
+# Prevents some flake8-rst-docstrings errors
+rst-roles = attr,class,func,meth,mod,obj,ref,doc,exc
+rst-directives = manim, SEEALSO, seealso
+docstring-convention=numpy
+
+select = A,A00,B,B9,C4,C90,D,E,F,F,PT,RST,SIM,W
+
+                # General Compatibility
+extend-ignore = E203, W503, D202, D212, D213, D404
+
+                # Misc
+                F401, F403, F405, F841, E501, E731, E402, F811, F821,
+
+                # Plug-in: flake8-builtins
+                A001, A002, A003,
+
+                # Plug-in: flake8-bugbear
+                B006, B007, B008, B009, B010, B903, B950,
+
+                # Plug-in: flake8-simplify
+                SIM105, SIM106, SIM119,
+
+                # Plug-in: flake8-comprehensions
+                C901
+
+                # Plug-in: flake8-pytest-style
+                PT001, PT004, PT006, PT011, PT018, PT022, PT023,
+
+                # Plug-in: flake8-docstrings
+                D100, D101, D102, D103, D104, D105, D106, D107,
+                D200, D202, D204, D205, D209,
+                D301,
+                D400, D401, D402, D403, D405, D406, D407, D409, D411, D412, D414,
+
+                # Plug-in: flake8-rst-docstrings
+                RST201, RST203, RST210, RST212, RST213, RST215,
+                RST301, RST303,

crates/flake8_to_ruff/examples/poetry.ini

@@ -0,0 +1,36 @@
+[flake8]
+min_python_version = 3.7.0
+max-line-length = 88
+ban-relative-imports = true
+# flake8-use-fstring: https://github.com/MichaelKim0407/flake8-use-fstring#--percent-greedy-and---format-greedy
+format-greedy = 1
+inline-quotes = double
+enable-extensions = TC, TC1
+type-checking-strict = true
+eradicate-whitelist-extend = ^-.*;
+extend-ignore =
+    # E203: Whitespace before ':' (pycqa/pycodestyle#373)
+    E203,
+    # SIM106: Handle error-cases first
+    SIM106,
+    # ANN101: Missing type annotation for self in method
+    ANN101,
+    # ANN102: Missing type annotation for cls in classmethod
+    ANN102,
+    # PIE781: assign-and-return
+    PIE781,
+    # PIE798 no-unnecessary-class: Consider using a module for namespacing instead
+    PIE798,
+per-file-ignores =
+    # TC002: Move third-party import '...' into a type-checking block
+    __init__.py:TC002,
+    # ANN201: Missing return type annotation for public function
+    tests/test_*:ANN201
+    tests/**/test_*:ANN201
+extend-exclude =
+    # Frozen and not subject to change in this repo:
+    get-poetry.py,
+    install-poetry.py,
+    # External to the project's coding standards:
+    tests/fixtures/*,
+    tests/**/fixtures/*,

crates/flake8_to_ruff/examples/python-discord.ini

@@ -0,0 +1,19 @@
+[flake8]
+max-line-length=120
+docstring-convention=all
+import-order-style=pycharm
+application_import_names=bot,tests
+exclude=.cache,.venv,.git,constants.py
+extend-ignore=
+    B311,W503,E226,S311,T000,E731
+    # Missing Docstrings
+    D100,D104,D105,D107,
+    # Docstring Whitespace
+    D203,D212,D214,D215,
+    # Docstring Quotes
+    D301,D302,
+    # Docstring Content
+    D400,D401,D402,D404,D405,D406,D407,D408,D409,D410,D411,D412,D413,D414,D416,D417
+    # Type Annotations
+    ANN002,ANN003,ANN101,ANN102,ANN204,ANN206,ANN401
+per-file-ignores=tests/*:D,ANN

crates/flake8_to_ruff/examples/requests.ini

@@ -0,0 +1,6 @@
+[flake8]
+ignore = E203, E501, W503
+per-file-ignores =
+    requests/__init__.py:E402, F401
+    requests/compat.py:E402, F401
+    tests/compat.py:F401

crates/flake8_to_ruff/pyproject.toml

@@ -0,0 +1,34 @@
+[project]
+name = "flake8-to-ruff"
+keywords = ["automation", "flake8", "pycodestyle", "pyflakes", "pylint", "clippy"]
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "Environment :: Console",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3 :: Only",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    "Topic :: Software Development :: Quality Assurance",
+]
+author = "Charlie Marsh"
+author_email = "charlie.r.marsh@gmail.com"
+description = "Convert existing Flake8 configuration to Ruff."
+requires-python = ">=3.7"
+
+[project.urls]
+repository = "https://github.com/astral-sh/ruff#subdirectory=crates/flake8_to_ruff"
+
+[build-system]
+requires = ["maturin>=1.0,<2.0"]
+build-backend = "maturin"
+
+[tool.maturin]
+bindings = "bin"
+strip = true

crates/flake8_to_ruff/src/black.rs

@@ -0,0 +1,13 @@
+//! Extract Black configuration settings from a pyproject.toml.
+
+use ruff_linter::line_width::LineLength;
+use ruff_linter::settings::types::PythonVersion;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, PartialEq, Eq, Serialize, Deserialize, Default)]
+pub(crate) struct Black {
+    #[serde(alias = "line-length", alias = "line_length")]
+    pub(crate) line_length: Option<LineLength>,
+    #[serde(alias = "target-version", alias = "target_version")]
+    pub(crate) target_version: Option<Vec<PythonVersion>>,
+}

crates/flake8_to_ruff/src/converter.rs

@@ -0,0 +1,687 @@
+use std::collections::{HashMap, HashSet};
+use std::str::FromStr;
+
+use itertools::Itertools;
+
+use ruff_linter::line_width::LineLength;
+use ruff_linter::registry::Linter;
+use ruff_linter::rule_selector::RuleSelector;
+use ruff_linter::rules::flake8_pytest_style::types::{
+    ParametrizeNameType, ParametrizeValuesRowType, ParametrizeValuesType,
+};
+use ruff_linter::rules::flake8_quotes::settings::Quote;
+use ruff_linter::rules::flake8_tidy_imports::settings::Strictness;
+use ruff_linter::rules::pydocstyle::settings::Convention;
+use ruff_linter::settings::types::PythonVersion;
+use ruff_linter::settings::DEFAULT_SELECTORS;
+use ruff_linter::warn_user;
+use ruff_workspace::options::{
+    Flake8AnnotationsOptions, Flake8BugbearOptions, Flake8BuiltinsOptions, Flake8ErrMsgOptions,
+    Flake8PytestStyleOptions, Flake8QuotesOptions, Flake8TidyImportsOptions, LintCommonOptions,
+    LintOptions, McCabeOptions, Options, Pep8NamingOptions, PydocstyleOptions,
+};
+use ruff_workspace::pyproject::Pyproject;
+
+use super::external_config::ExternalConfig;
+use super::plugin::Plugin;
+use super::{parser, plugin};
+
+pub(crate) fn convert(
+    config: &HashMap<String, HashMap<String, Option<String>>>,
+    external_config: &ExternalConfig,
+    plugins: Option<Vec<Plugin>>,
+) -> Pyproject {
+    // Extract the Flake8 section.
+    let flake8 = config
+        .get("flake8")
+        .expect("Unable to find flake8 section in INI file");
+
+    // Extract all referenced rule code prefixes, to power plugin inference.
+    let mut referenced_codes: HashSet<RuleSelector> = HashSet::default();
+    for (key, value) in flake8 {
+        if let Some(value) = value {
+            match key.as_str() {
+                "select" | "ignore" | "extend-select" | "extend_select" | "extend-ignore"
+                | "extend_ignore" => {
+                    referenced_codes.extend(parser::parse_prefix_codes(value.as_ref()));
+                }
+                "per-file-ignores" | "per_file_ignores" => {
+                    if let Ok(per_file_ignores) =
+                        parser::parse_files_to_codes_mapping(value.as_ref())
+                    {
+                        for (_, codes) in parser::collect_per_file_ignores(per_file_ignores) {
+                            referenced_codes.extend(codes);
+                        }
+                    }
+                }
+                _ => {}
+            }
+        }
+    }
+
+    // Infer plugins, if not provided.
+    let plugins = plugins.unwrap_or_else(|| {
+        let from_options = plugin::infer_plugins_from_options(flake8);
+        if !from_options.is_empty() {
+            #[allow(clippy::print_stderr)]
+            {
+                eprintln!("Inferred plugins from settings: {from_options:#?}");
+            }
+        }
+        let from_codes = plugin::infer_plugins_from_codes(&referenced_codes);
+        if !from_codes.is_empty() {
+            #[allow(clippy::print_stderr)]
+            {
+                eprintln!("Inferred plugins from referenced codes: {from_codes:#?}");
+            }
+        }
+        from_options.into_iter().chain(from_codes).collect()
+    });
+
+    // Check if the user has specified a `select`. If not, we'll add our own
+    // default `select`, and populate it based on user plugins.
+    let mut select = flake8
+        .get("select")
+        .and_then(|value| {
+            value
+                .as_ref()
+                .map(|value| HashSet::from_iter(parser::parse_prefix_codes(value)))
+        })
+        .unwrap_or_else(|| resolve_select(&plugins));
+    let mut ignore: HashSet<RuleSelector> = flake8
+        .get("ignore")
+        .and_then(|value| {
+            value
+                .as_ref()
+                .map(|value| HashSet::from_iter(parser::parse_prefix_codes(value)))
+        })
+        .unwrap_or_default();
+
+    // Parse each supported option.
+    let mut options = Options::default();
+    let mut lint_options = LintCommonOptions::default();
+    let mut flake8_annotations = Flake8AnnotationsOptions::default();
+    let mut flake8_bugbear = Flake8BugbearOptions::default();
+    let mut flake8_builtins = Flake8BuiltinsOptions::default();
+    let mut flake8_errmsg = Flake8ErrMsgOptions::default();
+    let mut flake8_pytest_style = Flake8PytestStyleOptions::default();
+    let mut flake8_quotes = Flake8QuotesOptions::default();
+    let mut flake8_tidy_imports = Flake8TidyImportsOptions::default();
+    let mut mccabe = McCabeOptions::default();
+    let mut pep8_naming = Pep8NamingOptions::default();
+    let mut pydocstyle = PydocstyleOptions::default();
+    for (key, value) in flake8 {
+        if let Some(value) = value {
+            match key.as_str() {
+                // flake8
+                "builtins" => {
+                    options.builtins = Some(parser::parse_strings(value.as_ref()));
+                }
+                "max-line-length" | "max_line_length" => match LineLength::from_str(value) {
+                    Ok(line_length) => options.line_length = Some(line_length),
+                    Err(e) => {
+                        warn_user!("Unable to parse '{key}' property: {e}");
+                    }
+                },
+                "select" => {
+                    // No-op (handled above).
+                    select.extend(parser::parse_prefix_codes(value.as_ref()));
+                }
+                "ignore" => {
+                    // No-op (handled above).
+                }
+                "extend-select" | "extend_select" => {
+                    // Unlike Flake8, use a single explicit `select`.
+                    select.extend(parser::parse_prefix_codes(value.as_ref()));
+                }
+                "extend-ignore" | "extend_ignore" => {
+                    // Unlike Flake8, use a single explicit `ignore`.
+                    ignore.extend(parser::parse_prefix_codes(value.as_ref()));
+                }
+                "exclude" => {
+                    options.exclude = Some(parser::parse_strings(value.as_ref()));
+                }
+                "extend-exclude" | "extend_exclude" => {
+                    options.extend_exclude = Some(parser::parse_strings(value.as_ref()));
+                }
+                "per-file-ignores" | "per_file_ignores" => {
+                    match parser::parse_files_to_codes_mapping(value.as_ref()) {
+                        Ok(per_file_ignores) => {
+                            lint_options.per_file_ignores =
+                                Some(parser::collect_per_file_ignores(per_file_ignores));
+                        }
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                // flake8-bugbear
+                "extend-immutable-calls" | "extend_immutable_calls" => {
+                    flake8_bugbear.extend_immutable_calls =
+                        Some(parser::parse_strings(value.as_ref()));
+                }
+                // flake8-builtins
+                "builtins-ignorelist" | "builtins_ignorelist" => {
+                    flake8_builtins.builtins_ignorelist =
+                        Some(parser::parse_strings(value.as_ref()));
+                }
+                // flake8-annotations
+                "suppress-none-returning" | "suppress_none_returning" => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_annotations.suppress_none_returning = Some(bool),
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                "suppress-dummy-args" | "suppress_dummy_args" => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_annotations.suppress_dummy_args = Some(bool),
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                "mypy-init-return" | "mypy_init_return" => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_annotations.mypy_init_return = Some(bool),
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                "allow-star-arg-any" | "allow_star_arg_any" => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_annotations.allow_star_arg_any = Some(bool),
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                // flake8-quotes
+                "quotes" | "inline-quotes" | "inline_quotes" => match value.trim() {
+                    "'" | "single" => flake8_quotes.inline_quotes = Some(Quote::Single),
+                    "\"" | "double" => flake8_quotes.inline_quotes = Some(Quote::Double),
+                    _ => {
+                        warn_user!("Unexpected '{key}' value: {value}");
+                    }
+                },
+                "multiline-quotes" | "multiline_quotes" => match value.trim() {
+                    "'" | "single" => flake8_quotes.multiline_quotes = Some(Quote::Single),
+                    "\"" | "double" => flake8_quotes.multiline_quotes = Some(Quote::Double),
+                    _ => {
+                        warn_user!("Unexpected '{key}' value: {value}");
+                    }
+                },
+                "docstring-quotes" | "docstring_quotes" => match value.trim() {
+                    "'" | "single" => flake8_quotes.docstring_quotes = Some(Quote::Single),
+                    "\"" | "double" => flake8_quotes.docstring_quotes = Some(Quote::Double),
+                    _ => {
+                        warn_user!("Unexpected '{key}' value: {value}");
+                    }
+                },
+                "avoid-escape" | "avoid_escape" => match parser::parse_bool(value.as_ref()) {
+                    Ok(bool) => flake8_quotes.avoid_escape = Some(bool),
+                    Err(e) => {
+                        warn_user!("Unable to parse '{key}' property: {e}");
+                    }
+                },
+                // pep8-naming
+                "ignore-names" | "ignore_names" => {
+                    pep8_naming.ignore_names = Some(parser::parse_strings(value.as_ref()));
+                }
+                "classmethod-decorators" | "classmethod_decorators" => {
+                    pep8_naming.classmethod_decorators =
+                        Some(parser::parse_strings(value.as_ref()));
+                }
+                "staticmethod-decorators" | "staticmethod_decorators" => {
+                    pep8_naming.staticmethod_decorators =
+                        Some(parser::parse_strings(value.as_ref()));
+                }
+                // flake8-tidy-imports
+                "ban-relative-imports" | "ban_relative_imports" => match value.trim() {
+                    "true" => flake8_tidy_imports.ban_relative_imports = Some(Strictness::All),
+                    "parents" => {
+                        flake8_tidy_imports.ban_relative_imports = Some(Strictness::Parents);
+                    }
+                    _ => {
+                        warn_user!("Unexpected '{key}' value: {value}");
+                    }
+                },
+                // flake8-docstrings
+                "docstring-convention" => match value.trim() {
+                    "google" => pydocstyle.convention = Some(Convention::Google),
+                    "numpy" => pydocstyle.convention = Some(Convention::Numpy),
+                    "pep257" => pydocstyle.convention = Some(Convention::Pep257),
+                    "all" => pydocstyle.convention = None,
+                    _ => {
+                        warn_user!("Unexpected '{key}' value: {value}");
+                    }
+                },
+                // mccabe
+                "max-complexity" | "max_complexity" => match value.parse::<usize>() {
+                    Ok(max_complexity) => mccabe.max_complexity = Some(max_complexity),
+                    Err(e) => {
+                        warn_user!("Unable to parse '{key}' property: {e}");
+                    }
+                },
+                // flake8-errmsg
+                "errmsg-max-string-length" | "errmsg_max_string_length" => {
+                    match value.parse::<usize>() {
+                        Ok(max_string_length) => {
+                            flake8_errmsg.max_string_length = Some(max_string_length);
+                        }
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                // flake8-pytest-style
+                "pytest-fixture-no-parentheses" | "pytest_fixture_no_parentheses " => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_pytest_style.fixture_parentheses = Some(!bool),
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                "pytest-parametrize-names-type" | "pytest_parametrize_names_type" => {
+                    match value.trim() {
+                        "csv" => {
+                            flake8_pytest_style.parametrize_names_type =
+                                Some(ParametrizeNameType::Csv);
+                        }
+                        "tuple" => {
+                            flake8_pytest_style.parametrize_names_type =
+                                Some(ParametrizeNameType::Tuple);
+                        }
+                        "list" => {
+                            flake8_pytest_style.parametrize_names_type =
+                                Some(ParametrizeNameType::List);
+                        }
+                        _ => {
+                            warn_user!("Unexpected '{key}' value: {value}");
+                        }
+                    }
+                }
+                "pytest-parametrize-values-type" | "pytest_parametrize_values_type" => {
+                    match value.trim() {
+                        "tuple" => {
+                            flake8_pytest_style.parametrize_values_type =
+                                Some(ParametrizeValuesType::Tuple);
+                        }
+                        "list" => {
+                            flake8_pytest_style.parametrize_values_type =
+                                Some(ParametrizeValuesType::List);
+                        }
+                        _ => {
+                            warn_user!("Unexpected '{key}' value: {value}");
+                        }
+                    }
+                }
+                "pytest-parametrize-values-row-type" | "pytest_parametrize_values_row_type" => {
+                    match value.trim() {
+                        "tuple" => {
+                            flake8_pytest_style.parametrize_values_row_type =
+                                Some(ParametrizeValuesRowType::Tuple);
+                        }
+                        "list" => {
+                            flake8_pytest_style.parametrize_values_row_type =
+                                Some(ParametrizeValuesRowType::List);
+                        }
+                        _ => {
+                            warn_user!("Unexpected '{key}' value: {value}");
+                        }
+                    }
+                }
+                "pytest-raises-require-match-for" | "pytest_raises_require_match_for" => {
+                    flake8_pytest_style.raises_require_match_for =
+                        Some(parser::parse_strings(value.as_ref()));
+                }
+                "pytest-mark-no-parentheses" | "pytest_mark_no_parentheses" => {
+                    match parser::parse_bool(value.as_ref()) {
+                        Ok(bool) => flake8_pytest_style.mark_parentheses = Some(!bool),
+                        Err(e) => {
+                            warn_user!("Unable to parse '{key}' property: {e}");
+                        }
+                    }
+                }
+                // Unknown
+                _ => {
+                    warn_user!("Skipping unsupported property: {}", key);
+                }
+            }
+        }
+    }
+
+    // Deduplicate and sort.
+    lint_options.select = Some(
+        select
+            .into_iter()
+            .sorted_by_key(RuleSelector::prefix_and_code)
+            .collect(),
+    );
+    lint_options.ignore = Some(
+        ignore
+            .into_iter()
+            .sorted_by_key(RuleSelector::prefix_and_code)
+            .collect(),
+    );
+    if flake8_annotations != Flake8AnnotationsOptions::default() {
+        lint_options.flake8_annotations = Some(flake8_annotations);
+    }
+    if flake8_bugbear != Flake8BugbearOptions::default() {
+        lint_options.flake8_bugbear = Some(flake8_bugbear);
+    }
+    if flake8_builtins != Flake8BuiltinsOptions::default() {
+        lint_options.flake8_builtins = Some(flake8_builtins);
+    }
+    if flake8_errmsg != Flake8ErrMsgOptions::default() {
+        lint_options.flake8_errmsg = Some(flake8_errmsg);
+    }
+    if flake8_pytest_style != Flake8PytestStyleOptions::default() {
+        lint_options.flake8_pytest_style = Some(flake8_pytest_style);
+    }
+    if flake8_quotes != Flake8QuotesOptions::default() {
+        lint_options.flake8_quotes = Some(flake8_quotes);
+    }
+    if flake8_tidy_imports != Flake8TidyImportsOptions::default() {
+        lint_options.flake8_tidy_imports = Some(flake8_tidy_imports);
+    }
+    if mccabe != McCabeOptions::default() {
+        lint_options.mccabe = Some(mccabe);
+    }
+    if pep8_naming != Pep8NamingOptions::default() {
+        lint_options.pep8_naming = Some(pep8_naming);
+    }
+    if pydocstyle != PydocstyleOptions::default() {
+        lint_options.pydocstyle = Some(pydocstyle);
+    }
+
+    // Extract any settings from the existing `pyproject.toml`.
+    if let Some(black) = &external_config.black {
+        if let Some(line_length) = &black.line_length {
+            options.line_length = Some(*line_length);
+        }
+
+        if let Some(target_version) = &black.target_version {
+            if let Some(target_version) = target_version.iter().min() {
+                options.target_version = Some(*target_version);
+            }
+        }
+    }
+
+    if let Some(isort) = &external_config.isort {
+        if let Some(src_paths) = &isort.src_paths {
+            match options.src.as_mut() {
+                Some(src) => {
+                    src.extend_from_slice(src_paths);
+                }
+                None => {
+                    options.src = Some(src_paths.clone());
+                }
+            }
+        }
+    }
+
+    if let Some(project) = &external_config.project {
+        if let Some(requires_python) = &project.requires_python {
+            if options.target_version.is_none() {
+                options.target_version =
+                    PythonVersion::get_minimum_supported_version(requires_python);
+            }
+        }
+    }
+
+    if lint_options != LintCommonOptions::default() {
+        options.lint = Some(LintOptions {
+            common: lint_options,
+            ..LintOptions::default()
+        });
+    }
+
+    // Create the pyproject.toml.
+    Pyproject::new(options)
+}
+
+/// Resolve the set of enabled `RuleSelector` values for the given
+/// plugins.
+fn resolve_select(plugins: &[Plugin]) -> HashSet<RuleSelector> {
+    let mut select: HashSet<_> = DEFAULT_SELECTORS.iter().cloned().collect();
+    select.extend(plugins.iter().map(|p| Linter::from(p).into()));
+    select
+}
+
+#[cfg(test)]
+mod tests {
+    use std::collections::HashMap;
+    use std::str::FromStr;
+
+    use anyhow::Result;
+    use itertools::Itertools;
+    use pep440_rs::VersionSpecifiers;
+
+    use pretty_assertions::assert_eq;
+    use ruff_linter::line_width::LineLength;
+    use ruff_linter::registry::Linter;
+    use ruff_linter::rule_selector::RuleSelector;
+    use ruff_linter::rules::flake8_quotes;
+    use ruff_linter::rules::pydocstyle::settings::Convention;
+    use ruff_linter::settings::types::PythonVersion;
+    use ruff_workspace::options::{
+        Flake8QuotesOptions, LintCommonOptions, LintOptions, Options, PydocstyleOptions,
+    };
+    use ruff_workspace::pyproject::Pyproject;
+
+    use crate::converter::DEFAULT_SELECTORS;
+    use crate::pep621::Project;
+    use crate::ExternalConfig;
+
+    use super::super::plugin::Plugin;
+    use super::convert;
+
+    fn lint_default_options(plugins: impl IntoIterator<Item = RuleSelector>) -> LintCommonOptions {
+        LintCommonOptions {
+            ignore: Some(vec![]),
+            select: Some(
+                DEFAULT_SELECTORS
+                    .iter()
+                    .cloned()
+                    .chain(plugins)
+                    .sorted_by_key(RuleSelector::prefix_and_code)
+                    .collect(),
+            ),
+            ..LintCommonOptions::default()
+        }
+    }
+
+    #[test]
+    fn it_converts_empty() {
+        let actual = convert(
+            &HashMap::from([("flake8".to_string(), HashMap::default())]),
+            &ExternalConfig::default(),
+            None,
+        );
+        let expected = Pyproject::new(Options {
+            lint: Some(LintOptions {
+                common: lint_default_options([]),
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_converts_dashes() {
+        let actual = convert(
+            &HashMap::from([(
+                "flake8".to_string(),
+                HashMap::from([("max-line-length".to_string(), Some("100".to_string()))]),
+            )]),
+            &ExternalConfig::default(),
+            Some(vec![]),
+        );
+        let expected = Pyproject::new(Options {
+            line_length: Some(LineLength::try_from(100).unwrap()),
+            lint: Some(LintOptions {
+                common: lint_default_options([]),
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_converts_underscores() {
+        let actual = convert(
+            &HashMap::from([(
+                "flake8".to_string(),
+                HashMap::from([("max_line_length".to_string(), Some("100".to_string()))]),
+            )]),
+            &ExternalConfig::default(),
+            Some(vec![]),
+        );
+        let expected = Pyproject::new(Options {
+            line_length: Some(LineLength::try_from(100).unwrap()),
+            lint: Some(LintOptions {
+                common: lint_default_options([]),
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_ignores_parse_errors() {
+        let actual = convert(
+            &HashMap::from([(
+                "flake8".to_string(),
+                HashMap::from([("max_line_length".to_string(), Some("abc".to_string()))]),
+            )]),
+            &ExternalConfig::default(),
+            Some(vec![]),
+        );
+        let expected = Pyproject::new(Options {
+            lint: Some(LintOptions {
+                common: lint_default_options([]),
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_converts_plugin_options() {
+        let actual = convert(
+            &HashMap::from([(
+                "flake8".to_string(),
+                HashMap::from([("inline-quotes".to_string(), Some("single".to_string()))]),
+            )]),
+            &ExternalConfig::default(),
+            Some(vec![]),
+        );
+        let expected = Pyproject::new(Options {
+            lint: Some(LintOptions {
+                common: LintCommonOptions {
+                    flake8_quotes: Some(Flake8QuotesOptions {
+                        inline_quotes: Some(flake8_quotes::settings::Quote::Single),
+                        multiline_quotes: None,
+                        docstring_quotes: None,
+                        avoid_escape: None,
+                    }),
+                    ..lint_default_options([])
+                },
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_converts_docstring_conventions() {
+        let actual = convert(
+            &HashMap::from([(
+                "flake8".to_string(),
+                HashMap::from([(
+                    "docstring-convention".to_string(),
+                    Some("numpy".to_string()),
+                )]),
+            )]),
+            &ExternalConfig::default(),
+            Some(vec![Plugin::Flake8Docstrings]),
+        );
+        let expected = Pyproject::new(Options {
+            lint: Some(LintOptions {
+                common: LintCommonOptions {
+                    pydocstyle: Some(PydocstyleOptions {
+                        convention: Some(Convention::Numpy),
+                        ignore_decorators: None,
+                        property_decorators: None,
+                    }),
+                    ..lint_default_options([Linter::Pydocstyle.into()])
+                },
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_infers_plugins_if_omitted() {
+        let actual = convert(
+            &HashMap::from([(
+                "flake8".to_string(),
+                HashMap::from([("inline-quotes".to_string(), Some("single".to_string()))]),
+            )]),
+            &ExternalConfig::default(),
+            None,
+        );
+        let expected = Pyproject::new(Options {
+            lint: Some(LintOptions {
+                common: LintCommonOptions {
+                    flake8_quotes: Some(Flake8QuotesOptions {
+                        inline_quotes: Some(flake8_quotes::settings::Quote::Single),
+                        multiline_quotes: None,
+                        docstring_quotes: None,
+                        avoid_escape: None,
+                    }),
+                    ..lint_default_options([Linter::Flake8Quotes.into()])
+                },
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_converts_project_requires_python() -> Result<()> {
+        let actual = convert(
+            &HashMap::from([("flake8".to_string(), HashMap::default())]),
+            &ExternalConfig {
+                project: Some(&Project {
+                    requires_python: Some(VersionSpecifiers::from_str(">=3.8.16, <3.11")?),
+                }),
+                ..ExternalConfig::default()
+            },
+            Some(vec![]),
+        );
+        let expected = Pyproject::new(Options {
+            target_version: Some(PythonVersion::Py38),
+            lint: Some(LintOptions {
+                common: lint_default_options([]),
+                ..LintOptions::default()
+            }),
+            ..Options::default()
+        });
+        assert_eq!(actual, expected);
+
+        Ok(())
+    }
+}

crates/flake8_to_ruff/src/external_config.rs

@@ -0,0 +1,10 @@
+use super::black::Black;
+use super::isort::Isort;
+use super::pep621::Project;
+
+#[derive(Default)]
+pub(crate) struct ExternalConfig<'a> {
+    pub(crate) black: Option<&'a Black>,
+    pub(crate) isort: Option<&'a Isort>,
+    pub(crate) project: Option<&'a Project>,
+}

crates/flake8_to_ruff/src/isort.rs

@@ -0,0 +1,10 @@
+//! Extract isort configuration settings from a pyproject.toml.
+
+use serde::{Deserialize, Serialize};
+
+/// The [isort configuration](https://pycqa.github.io/isort/docs/configuration/config_files.html).
+#[derive(Debug, PartialEq, Eq, Serialize, Deserialize, Default)]
+pub(crate) struct Isort {
+    #[serde(alias = "src-paths", alias = "src_paths")]
+    pub(crate) src_paths: Option<Vec<String>>,
+}

crates/flake8_to_ruff/src/main.rs

@@ -0,0 +1,80 @@
+//! Utility to generate Ruff's `pyproject.toml` section from a Flake8 INI file.
+
+mod black;
+mod converter;
+mod external_config;
+mod isort;
+mod parser;
+mod pep621;
+mod plugin;
+mod pyproject;
+
+use std::path::PathBuf;
+
+use anyhow::Result;
+use clap::Parser;
+use configparser::ini::Ini;
+
+use crate::converter::convert;
+use crate::external_config::ExternalConfig;
+use crate::plugin::Plugin;
+use crate::pyproject::parse;
+use ruff_linter::logging::{set_up_logging, LogLevel};
+
+#[derive(Parser)]
+#[command(
+    about = "Convert existing Flake8 configuration to Ruff.",
+    long_about = None
+)]
+struct Args {
+    /// Path to the Flake8 configuration file (e.g., `setup.cfg`, `tox.ini`, or
+    /// `.flake8`).
+    #[arg(required = true)]
+    file: PathBuf,
+    /// Optional path to a `pyproject.toml` file, used to ensure compatibility
+    /// with Black.
+    #[arg(long)]
+    pyproject: Option<PathBuf>,
+    /// List of plugins to enable.
+    #[arg(long, value_delimiter = ',')]
+    plugin: Option<Vec<Plugin>>,
+}
+
+fn main() -> Result<()> {
+    set_up_logging(&LogLevel::Default)?;
+
+    let args = Args::parse();
+
+    // Read the INI file.
+    let mut ini = Ini::new_cs();
+    ini.set_multiline(true);
+    let config = ini.load(args.file).map_err(|msg| anyhow::anyhow!(msg))?;
+
+    // Read the pyproject.toml file.
+    let pyproject = args.pyproject.map(parse).transpose()?;
+    let external_config = pyproject
+        .as_ref()
+        .and_then(|pyproject| pyproject.tool.as_ref())
+        .map(|tool| ExternalConfig {
+            black: tool.black.as_ref(),
+            isort: tool.isort.as_ref(),
+            ..Default::default()
+        })
+        .unwrap_or_default();
+    let external_config = ExternalConfig {
+        project: pyproject
+            .as_ref()
+            .and_then(|pyproject| pyproject.project.as_ref()),
+        ..external_config
+    };
+
+    // Create Ruff's pyproject.toml section.
+    let pyproject = convert(&config, &external_config, args.plugin);
+
+    #[allow(clippy::print_stdout)]
+    {
+        println!("{}", toml::to_string_pretty(&pyproject)?);
+    }
+
+    Ok(())
+}

crates/flake8_to_ruff/src/parser.rs

@@ -0,0 +1,391 @@
+use std::str::FromStr;
+
+use anyhow::{bail, Result};
+use once_cell::sync::Lazy;
+use regex::Regex;
+use rustc_hash::FxHashMap;
+
+use ruff_linter::settings::types::PatternPrefixPair;
+use ruff_linter::{warn_user, RuleSelector};
+
+static COMMA_SEPARATED_LIST_RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"[,\s]").unwrap());
+
+/// Parse a comma-separated list of `RuleSelector` values (e.g.,
+/// "F401,E501").
+pub(crate) fn parse_prefix_codes(value: &str) -> Vec<RuleSelector> {
+    let mut codes: Vec<RuleSelector> = vec![];
+    for code in COMMA_SEPARATED_LIST_RE.split(value) {
+        let code = code.trim();
+        if code.is_empty() {
+            continue;
+        }
+        if let Ok(code) = RuleSelector::from_str(code) {
+            codes.push(code);
+        } else {
+            warn_user!("Unsupported prefix code: {code}");
+        }
+    }
+    codes
+}
+
+/// Parse a comma-separated list of strings (e.g., "__init__.py,__main__.py").
+pub(crate) fn parse_strings(value: &str) -> Vec<String> {
+    COMMA_SEPARATED_LIST_RE
+        .split(value)
+        .map(str::trim)
+        .filter(|part| !part.is_empty())
+        .map(String::from)
+        .collect()
+}
+
+/// Parse a boolean.
+pub(crate) fn parse_bool(value: &str) -> Result<bool> {
+    match value.trim() {
+        "true" => Ok(true),
+        "false" => Ok(false),
+        _ => bail!("Unexpected boolean value: {value}"),
+    }
+}
+
+#[derive(Debug)]
+struct Token {
+    token_name: TokenType,
+    src: String,
+}
+
+#[derive(Debug, Copy, Clone)]
+enum TokenType {
+    Code,
+    File,
+    Colon,
+    Comma,
+    Ws,
+    Eof,
+}
+
+struct State {
+    seen_sep: bool,
+    seen_colon: bool,
+    filenames: Vec<String>,
+    codes: Vec<String>,
+}
+
+impl State {
+    const fn new() -> Self {
+        Self {
+            seen_sep: true,
+            seen_colon: false,
+            filenames: vec![],
+            codes: vec![],
+        }
+    }
+
+    /// Generate the list of `StrRuleCodePair` pairs for the current
+    /// state.
+    fn parse(&self) -> Vec<PatternPrefixPair> {
+        let mut codes: Vec<PatternPrefixPair> = vec![];
+        for code in &self.codes {
+            if let Ok(code) = RuleSelector::from_str(code) {
+                for filename in &self.filenames {
+                    codes.push(PatternPrefixPair {
+                        pattern: filename.clone(),
+                        prefix: code.clone(),
+                    });
+                }
+            } else {
+                warn_user!("Unsupported prefix code: {code}");
+            }
+        }
+        codes
+    }
+}
+
+/// Tokenize the raw 'files-to-codes' mapping.
+fn tokenize_files_to_codes_mapping(value: &str) -> Vec<Token> {
+    let mut tokens = vec![];
+    let mut i = 0;
+    while i < value.len() {
+        for (token_re, token_name) in [
+            (
+                Regex::new(r"([A-Z]+[0-9]*)(?:$|\s|,)").unwrap(),
+                TokenType::Code,
+            ),
+            (Regex::new(r"([^\s:,]+)").unwrap(), TokenType::File),
+            (Regex::new(r"(\s*:\s*)").unwrap(), TokenType::Colon),
+            (Regex::new(r"(\s*,\s*)").unwrap(), TokenType::Comma),
+            (Regex::new(r"(\s+)").unwrap(), TokenType::Ws),
+        ] {
+            if let Some(cap) = token_re.captures(&value[i..]) {
+                let mat = cap.get(1).unwrap();
+                if mat.start() == 0 {
+                    tokens.push(Token {
+                        token_name,
+                        src: mat.as_str().trim().to_string(),
+                    });
+                    i += mat.end();
+                    break;
+                }
+            }
+        }
+    }
+    tokens.push(Token {
+        token_name: TokenType::Eof,
+        src: String::new(),
+    });
+    tokens
+}
+
+/// Parse a 'files-to-codes' mapping, mimicking Flake8's internal logic.
+/// See: <https://github.com/PyCQA/flake8/blob/7dfe99616fc2f07c0017df2ba5fa884158f3ea8a/src/flake8/utils.py#L45>
+pub(crate) fn parse_files_to_codes_mapping(value: &str) -> Result<Vec<PatternPrefixPair>> {
+    if value.trim().is_empty() {
+        return Ok(vec![]);
+    }
+    let mut codes: Vec<PatternPrefixPair> = vec![];
+    let mut state = State::new();
+    for token in tokenize_files_to_codes_mapping(value) {
+        if matches!(token.token_name, TokenType::Comma | TokenType::Ws) {
+            state.seen_sep = true;
+        } else if !state.seen_colon {
+            if matches!(token.token_name, TokenType::Colon) {
+                state.seen_colon = true;
+                state.seen_sep = true;
+            } else if state.seen_sep && matches!(token.token_name, TokenType::File) {
+                state.filenames.push(token.src);
+                state.seen_sep = false;
+            } else {
+                bail!("Unexpected token: {:?}", token.token_name);
+            }
+        } else {
+            if matches!(token.token_name, TokenType::Eof) {
+                codes.extend(state.parse());
+                state = State::new();
+            } else if state.seen_sep && matches!(token.token_name, TokenType::Code) {
+                state.codes.push(token.src);
+                state.seen_sep = false;
+            } else if state.seen_sep && matches!(token.token_name, TokenType::File) {
+                codes.extend(state.parse());
+                state = State::new();
+                state.filenames.push(token.src);
+                state.seen_sep = false;
+            } else {
+                bail!("Unexpected token: {:?}", token.token_name);
+            }
+        }
+    }
+    Ok(codes)
+}
+
+/// Collect a list of `PatternPrefixPair` structs as a `BTreeMap`.
+pub(crate) fn collect_per_file_ignores(
+    pairs: Vec<PatternPrefixPair>,
+) -> FxHashMap<String, Vec<RuleSelector>> {
+    let mut per_file_ignores: FxHashMap<String, Vec<RuleSelector>> = FxHashMap::default();
+    for pair in pairs {
+        per_file_ignores
+            .entry(pair.pattern)
+            .or_default()
+            .push(pair.prefix);
+    }
+    per_file_ignores
+}
+
+#[cfg(test)]
+mod tests {
+    use anyhow::Result;
+
+    use ruff_linter::codes;
+    use ruff_linter::registry::Linter;
+    use ruff_linter::settings::types::PatternPrefixPair;
+    use ruff_linter::RuleSelector;
+
+    use super::{parse_files_to_codes_mapping, parse_prefix_codes, parse_strings};
+
+    #[test]
+    fn it_parses_prefix_codes() {
+        let actual = parse_prefix_codes("");
+        let expected: Vec<RuleSelector> = vec![];
+        assert_eq!(actual, expected);
+
+        let actual = parse_prefix_codes(" ");
+        let expected: Vec<RuleSelector> = vec![];
+        assert_eq!(actual, expected);
+
+        let actual = parse_prefix_codes("F401");
+        let expected = vec![codes::Pyflakes::_401.into()];
+        assert_eq!(actual, expected);
+
+        let actual = parse_prefix_codes("F401,");
+        let expected = vec![codes::Pyflakes::_401.into()];
+        assert_eq!(actual, expected);
+
+        let actual = parse_prefix_codes("F401,E501");
+        let expected = vec![
+            codes::Pyflakes::_401.into(),
+            codes::Pycodestyle::E501.into(),
+        ];
+        assert_eq!(actual, expected);
+
+        let actual = parse_prefix_codes("F401, E501");
+        let expected = vec![
+            codes::Pyflakes::_401.into(),
+            codes::Pycodestyle::E501.into(),
+        ];
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_parses_strings() {
+        let actual = parse_strings("");
+        let expected: Vec<String> = vec![];
+        assert_eq!(actual, expected);
+
+        let actual = parse_strings(" ");
+        let expected: Vec<String> = vec![];
+        assert_eq!(actual, expected);
+
+        let actual = parse_strings("__init__.py");
+        let expected = vec!["__init__.py".to_string()];
+        assert_eq!(actual, expected);
+
+        let actual = parse_strings("__init__.py,");
+        let expected = vec!["__init__.py".to_string()];
+        assert_eq!(actual, expected);
+
+        let actual = parse_strings("__init__.py,__main__.py");
+        let expected = vec!["__init__.py".to_string(), "__main__.py".to_string()];
+        assert_eq!(actual, expected);
+
+        let actual = parse_strings("__init__.py, __main__.py");
+        let expected = vec!["__init__.py".to_string(), "__main__.py".to_string()];
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn it_parse_files_to_codes_mapping() -> Result<()> {
+        let actual = parse_files_to_codes_mapping("")?;
+        let expected: Vec<PatternPrefixPair> = vec![];
+        assert_eq!(actual, expected);
+
+        let actual = parse_files_to_codes_mapping(" ")?;
+        let expected: Vec<PatternPrefixPair> = vec![];
+        assert_eq!(actual, expected);
+
+        // Ex) locust
+        let actual = parse_files_to_codes_mapping(
+            "per-file-ignores =
+    locust/test/*: F841
+    examples/*: F841
+    *.pyi: E302,E704"
+                .strip_prefix("per-file-ignores =")
+                .unwrap(),
+        )?;
+        let expected: Vec<PatternPrefixPair> = vec![
+            PatternPrefixPair {
+                pattern: "locust/test/*".to_string(),
+                prefix: codes::Pyflakes::_841.into(),
+            },
+            PatternPrefixPair {
+                pattern: "examples/*".to_string(),
+                prefix: codes::Pyflakes::_841.into(),
+            },
+        ];
+        assert_eq!(actual, expected);
+
+        // Ex) celery
+        let actual = parse_files_to_codes_mapping(
+            "per-file-ignores =
+   t/*,setup.py,examples/*,docs/*,extra/*:
+       D,"
+            .strip_prefix("per-file-ignores =")
+            .unwrap(),
+        )?;
+        let expected: Vec<PatternPrefixPair> = vec![
+            PatternPrefixPair {
+                pattern: "t/*".to_string(),
+                prefix: Linter::Pydocstyle.into(),
+            },
+            PatternPrefixPair {
+                pattern: "setup.py".to_string(),
+                prefix: Linter::Pydocstyle.into(),
+            },
+            PatternPrefixPair {
+                pattern: "examples/*".to_string(),
+                prefix: Linter::Pydocstyle.into(),
+            },
+            PatternPrefixPair {
+                pattern: "docs/*".to_string(),
+                prefix: Linter::Pydocstyle.into(),
+            },
+            PatternPrefixPair {
+                pattern: "extra/*".to_string(),
+                prefix: Linter::Pydocstyle.into(),
+            },
+        ];
+        assert_eq!(actual, expected);
+
+        // Ex) scrapy
+        let actual = parse_files_to_codes_mapping(
+            "per-file-ignores =
+    scrapy/__init__.py:E402
+    scrapy/core/downloader/handlers/http.py:F401
+    scrapy/http/__init__.py:F401
+    scrapy/linkextractors/__init__.py:E402,F401
+    scrapy/selector/__init__.py:F401
+    scrapy/spiders/__init__.py:E402,F401
+    scrapy/utils/url.py:F403,F405
+    tests/test_loader.py:E741"
+                .strip_prefix("per-file-ignores =")
+                .unwrap(),
+        )?;
+        let expected: Vec<PatternPrefixPair> = vec![
+            PatternPrefixPair {
+                pattern: "scrapy/__init__.py".to_string(),
+                prefix: codes::Pycodestyle::E402.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/core/downloader/handlers/http.py".to_string(),
+                prefix: codes::Pyflakes::_401.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/http/__init__.py".to_string(),
+                prefix: codes::Pyflakes::_401.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/linkextractors/__init__.py".to_string(),
+                prefix: codes::Pycodestyle::E402.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/linkextractors/__init__.py".to_string(),
+                prefix: codes::Pyflakes::_401.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/selector/__init__.py".to_string(),
+                prefix: codes::Pyflakes::_401.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/spiders/__init__.py".to_string(),
+                prefix: codes::Pycodestyle::E402.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/spiders/__init__.py".to_string(),
+                prefix: codes::Pyflakes::_401.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/utils/url.py".to_string(),
+                prefix: codes::Pyflakes::_403.into(),
+            },
+            PatternPrefixPair {
+                pattern: "scrapy/utils/url.py".to_string(),
+                prefix: codes::Pyflakes::_405.into(),
+            },
+            PatternPrefixPair {
+                pattern: "tests/test_loader.py".to_string(),
+                prefix: codes::Pycodestyle::E741.into(),
+            },
+        ];
+        assert_eq!(actual, expected);
+
+        Ok(())
+    }
+}

crates/flake8_to_ruff/src/pep621.rs

@@ -0,0 +1,10 @@
+//! Extract PEP 621 configuration settings from a pyproject.toml.
+
+use pep440_rs::VersionSpecifiers;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, PartialEq, Eq, Serialize, Deserialize, Default)]
+pub(crate) struct Project {
+    #[serde(alias = "requires-python", alias = "requires_python")]
+    pub(crate) requires_python: Option<VersionSpecifiers>,
+}

crates/flake8_to_ruff/src/plugin.rs

@@ -0,0 +1,368 @@
+use std::collections::{BTreeSet, HashMap, HashSet};
+use std::fmt;
+use std::str::FromStr;
+
+use anyhow::anyhow;
+use ruff_linter::registry::Linter;
+use ruff_linter::rule_selector::PreviewOptions;
+use ruff_linter::RuleSelector;
+
+#[derive(Copy, Clone, Ord, PartialOrd, Eq, PartialEq)]
+pub enum Plugin {
+    Flake82020,
+    Flake8Annotations,
+    Flake8Bandit,
+    Flake8BlindExcept,
+    Flake8BooleanTrap,
+    Flake8Bugbear,
+    Flake8Builtins,
+    Flake8Commas,
+    Flake8Comprehensions,
+    Flake8Datetimez,
+    Flake8Debugger,
+    Flake8Docstrings,
+    Flake8Eradicate,
+    Flake8ErrMsg,
+    Flake8Executable,
+    Flake8ImplicitStrConcat,
+    Flake8ImportConventions,
+    Flake8NoPep420,
+    Flake8Pie,
+    Flake8Print,
+    Flake8PytestStyle,
+    Flake8Quotes,
+    Flake8Return,
+    Flake8Simplify,
+    Flake8TidyImports,
+    Flake8TypeChecking,
+    Flake8UnusedArguments,
+    Flake8UsePathlib,
+    McCabe,
+    PEP8Naming,
+    PandasVet,
+    Pyupgrade,
+    Tryceratops,
+}
+
+impl FromStr for Plugin {
+    type Err = anyhow::Error;
+
+    fn from_str(string: &str) -> Result<Self, Self::Err> {
+        match string {
+            "flake8-2020" => Ok(Plugin::Flake82020),
+            "flake8-annotations" => Ok(Plugin::Flake8Annotations),
+            "flake8-bandit" => Ok(Plugin::Flake8Bandit),
+            "flake8-blind-except" => Ok(Plugin::Flake8BlindExcept),
+            "flake8-boolean-trap" => Ok(Plugin::Flake8BooleanTrap),
+            "flake8-bugbear" => Ok(Plugin::Flake8Bugbear),
+            "flake8-builtins" => Ok(Plugin::Flake8Builtins),
+            "flake8-commas" => Ok(Plugin::Flake8Commas),
+            "flake8-comprehensions" => Ok(Plugin::Flake8Comprehensions),
+            "flake8-datetimez" => Ok(Plugin::Flake8Datetimez),
+            "flake8-debugger" => Ok(Plugin::Flake8Debugger),
+            "flake8-docstrings" => Ok(Plugin::Flake8Docstrings),
+            "flake8-eradicate" => Ok(Plugin::Flake8Eradicate),
+            "flake8-errmsg" => Ok(Plugin::Flake8ErrMsg),
+            "flake8-executable" => Ok(Plugin::Flake8Executable),
+            "flake8-implicit-str-concat" => Ok(Plugin::Flake8ImplicitStrConcat),
+            "flake8-import-conventions" => Ok(Plugin::Flake8ImportConventions),
+            "flake8-no-pep420" => Ok(Plugin::Flake8NoPep420),
+            "flake8-pie" => Ok(Plugin::Flake8Pie),
+            "flake8-print" => Ok(Plugin::Flake8Print),
+            "flake8-pytest-style" => Ok(Plugin::Flake8PytestStyle),
+            "flake8-quotes" => Ok(Plugin::Flake8Quotes),
+            "flake8-return" => Ok(Plugin::Flake8Return),
+            "flake8-simplify" => Ok(Plugin::Flake8Simplify),
+            "flake8-tidy-imports" => Ok(Plugin::Flake8TidyImports),
+            "flake8-type-checking" => Ok(Plugin::Flake8TypeChecking),
+            "flake8-unused-arguments" => Ok(Plugin::Flake8UnusedArguments),
+            "flake8-use-pathlib" => Ok(Plugin::Flake8UsePathlib),
+            "mccabe" => Ok(Plugin::McCabe),
+            "pep8-naming" => Ok(Plugin::PEP8Naming),
+            "pandas-vet" => Ok(Plugin::PandasVet),
+            "pyupgrade" => Ok(Plugin::Pyupgrade),
+            "tryceratops" => Ok(Plugin::Tryceratops),
+            _ => Err(anyhow!("Unknown plugin: {string}")),
+        }
+    }
+}
+
+impl fmt::Debug for Plugin {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(
+            f,
+            "{}",
+            match self {
+                Plugin::Flake82020 => "flake8-2020",
+                Plugin::Flake8Annotations => "flake8-annotations",
+                Plugin::Flake8Bandit => "flake8-bandit",
+                Plugin::Flake8BlindExcept => "flake8-blind-except",
+                Plugin::Flake8BooleanTrap => "flake8-boolean-trap",
+                Plugin::Flake8Bugbear => "flake8-bugbear",
+                Plugin::Flake8Builtins => "flake8-builtins",
+                Plugin::Flake8Commas => "flake8-commas",
+                Plugin::Flake8Comprehensions => "flake8-comprehensions",
+                Plugin::Flake8Datetimez => "flake8-datetimez",
+                Plugin::Flake8Debugger => "flake8-debugger",
+                Plugin::Flake8Docstrings => "flake8-docstrings",
+                Plugin::Flake8Eradicate => "flake8-eradicate",
+                Plugin::Flake8ErrMsg => "flake8-errmsg",
+                Plugin::Flake8Executable => "flake8-executable",
+                Plugin::Flake8ImplicitStrConcat => "flake8-implicit-str-concat",
+                Plugin::Flake8ImportConventions => "flake8-import-conventions",
+                Plugin::Flake8NoPep420 => "flake8-no-pep420",
+                Plugin::Flake8Pie => "flake8-pie",
+                Plugin::Flake8Print => "flake8-print",
+                Plugin::Flake8PytestStyle => "flake8-pytest-style",
+                Plugin::Flake8Quotes => "flake8-quotes",
+                Plugin::Flake8Return => "flake8-return",
+                Plugin::Flake8Simplify => "flake8-simplify",
+                Plugin::Flake8TidyImports => "flake8-tidy-imports",
+                Plugin::Flake8TypeChecking => "flake8-type-checking",
+                Plugin::Flake8UnusedArguments => "flake8-unused-arguments",
+                Plugin::Flake8UsePathlib => "flake8-use-pathlib",
+                Plugin::McCabe => "mccabe",
+                Plugin::PEP8Naming => "pep8-naming",
+                Plugin::PandasVet => "pandas-vet",
+                Plugin::Pyupgrade => "pyupgrade",
+                Plugin::Tryceratops => "tryceratops",
+            }
+        )
+    }
+}
+
+impl From<&Plugin> for Linter {
+    fn from(plugin: &Plugin) -> Self {
+        match plugin {
+            Plugin::Flake82020 => Linter::Flake82020,
+            Plugin::Flake8Annotations => Linter::Flake8Annotations,
+            Plugin::Flake8Bandit => Linter::Flake8Bandit,
+            Plugin::Flake8BlindExcept => Linter::Flake8BlindExcept,
+            Plugin::Flake8BooleanTrap => Linter::Flake8BooleanTrap,
+            Plugin::Flake8Bugbear => Linter::Flake8Bugbear,
+            Plugin::Flake8Builtins => Linter::Flake8Builtins,
+            Plugin::Flake8Commas => Linter::Flake8Commas,
+            Plugin::Flake8Comprehensions => Linter::Flake8Comprehensions,
+            Plugin::Flake8Datetimez => Linter::Flake8Datetimez,
+            Plugin::Flake8Debugger => Linter::Flake8Debugger,
+            Plugin::Flake8Docstrings => Linter::Pydocstyle,
+            Plugin::Flake8Eradicate => Linter::Eradicate,
+            Plugin::Flake8ErrMsg => Linter::Flake8ErrMsg,
+            Plugin::Flake8Executable => Linter::Flake8Executable,
+            Plugin::Flake8ImplicitStrConcat => Linter::Flake8ImplicitStrConcat,
+            Plugin::Flake8ImportConventions => Linter::Flake8ImportConventions,
+            Plugin::Flake8NoPep420 => Linter::Flake8NoPep420,
+            Plugin::Flake8Pie => Linter::Flake8Pie,
+            Plugin::Flake8Print => Linter::Flake8Print,
+            Plugin::Flake8PytestStyle => Linter::Flake8PytestStyle,
+            Plugin::Flake8Quotes => Linter::Flake8Quotes,
+            Plugin::Flake8Return => Linter::Flake8Return,
+            Plugin::Flake8Simplify => Linter::Flake8Simplify,
+            Plugin::Flake8TidyImports => Linter::Flake8TidyImports,
+            Plugin::Flake8TypeChecking => Linter::Flake8TypeChecking,
+            Plugin::Flake8UnusedArguments => Linter::Flake8UnusedArguments,
+            Plugin::Flake8UsePathlib => Linter::Flake8UsePathlib,
+            Plugin::McCabe => Linter::McCabe,
+            Plugin::PEP8Naming => Linter::PEP8Naming,
+            Plugin::PandasVet => Linter::PandasVet,
+            Plugin::Pyupgrade => Linter::Pyupgrade,
+            Plugin::Tryceratops => Linter::Tryceratops,
+        }
+    }
+}
+
+/// Infer the enabled plugins based on user-provided options.
+///
+/// For example, if the user specified a `mypy-init-return` setting, we should
+/// infer that `flake8-annotations` is active.
+pub(crate) fn infer_plugins_from_options(flake8: &HashMap<String, Option<String>>) -> Vec<Plugin> {
+    let mut plugins = BTreeSet::new();
+    for key in flake8.keys() {
+        match key.as_str() {
+            // flake8-annotations
+            "suppress-none-returning" | "suppress_none_returning" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "suppress-dummy-args" | "suppress_dummy_args" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "allow-untyped-defs" | "allow_untyped_defs" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "allow-untyped-nested" | "allow_untyped_nested" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "mypy-init-return" | "mypy_init_return" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "dispatch-decorators" | "dispatch_decorators" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "overload-decorators" | "overload_decorators" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            "allow-star-arg-any" | "allow_star_arg_any" => {
+                plugins.insert(Plugin::Flake8Annotations);
+            }
+            // flake8-bugbear
+            "extend-immutable-calls" | "extend_immutable_calls" => {
+                plugins.insert(Plugin::Flake8Bugbear);
+            }
+            // flake8-builtins
+            "builtins-ignorelist" | "builtins_ignorelist" => {
+                plugins.insert(Plugin::Flake8Builtins);
+            }
+            // flake8-docstrings
+            "docstring-convention" | "docstring_convention" => {
+                plugins.insert(Plugin::Flake8Docstrings);
+            }
+            // flake8-eradicate
+            "eradicate-aggressive" | "eradicate_aggressive" => {
+                plugins.insert(Plugin::Flake8Eradicate);
+            }
+            "eradicate-whitelist" | "eradicate_whitelist" => {
+                plugins.insert(Plugin::Flake8Eradicate);
+            }
+            "eradicate-whitelist-extend" | "eradicate_whitelist_extend" => {
+                plugins.insert(Plugin::Flake8Eradicate);
+            }
+            // flake8-pytest-style
+            "pytest-fixture-no-parentheses" | "pytest_fixture_no_parentheses " => {
+                plugins.insert(Plugin::Flake8PytestStyle);
+            }
+            "pytest-parametrize-names-type" | "pytest_parametrize_names_type" => {
+                plugins.insert(Plugin::Flake8PytestStyle);
+            }
+            "pytest-parametrize-values-type" | "pytest_parametrize_values_type" => {
+                plugins.insert(Plugin::Flake8PytestStyle);
+            }
+            "pytest-parametrize-values-row-type" | "pytest_parametrize_values_row_type" => {
+                plugins.insert(Plugin::Flake8PytestStyle);
+            }
+            "pytest-raises-require-match-for" | "pytest_raises_require_match_for" => {
+                plugins.insert(Plugin::Flake8PytestStyle);
+            }
+            "pytest-mark-no-parentheses" | "pytest_mark_no_parentheses" => {
+                plugins.insert(Plugin::Flake8PytestStyle);
+            }
+            // flake8-quotes
+            "quotes" | "inline-quotes" | "inline_quotes" => {
+                plugins.insert(Plugin::Flake8Quotes);
+            }
+            "multiline-quotes" | "multiline_quotes" => {
+                plugins.insert(Plugin::Flake8Quotes);
+            }
+            "docstring-quotes" | "docstring_quotes" => {
+                plugins.insert(Plugin::Flake8Quotes);
+            }
+            "avoid-escape" | "avoid_escape" => {
+                plugins.insert(Plugin::Flake8Quotes);
+            }
+            // flake8-tidy-imports
+            "ban-relative-imports" | "ban_relative_imports" => {
+                plugins.insert(Plugin::Flake8TidyImports);
+            }
+            "banned-modules" | "banned_modules" => {
+                plugins.insert(Plugin::Flake8TidyImports);
+            }
+            // mccabe
+            "max-complexity" | "max_complexity" => {
+                plugins.insert(Plugin::McCabe);
+            }
+            // pep8-naming
+            "ignore-names" | "ignore_names" => {
+                plugins.insert(Plugin::PEP8Naming);
+            }
+            "classmethod-decorators" | "classmethod_decorators" => {
+                plugins.insert(Plugin::PEP8Naming);
+            }
+            "staticmethod-decorators" | "staticmethod_decorators" => {
+                plugins.insert(Plugin::PEP8Naming);
+            }
+            "max-string-length" | "max_string_length" => {
+                plugins.insert(Plugin::Flake8ErrMsg);
+            }
+            _ => {}
+        }
+    }
+    Vec::from_iter(plugins)
+}
+
+/// Infer the enabled plugins based on the referenced prefixes.
+///
+/// For example, if the user ignores `ANN101`, we should infer that
+/// `flake8-annotations` is active.
+pub(crate) fn infer_plugins_from_codes(selectors: &HashSet<RuleSelector>) -> Vec<Plugin> {
+    // Ignore cases in which we've knowingly changed rule prefixes.
+    [
+        Plugin::Flake82020,
+        Plugin::Flake8Annotations,
+        Plugin::Flake8Bandit,
+        // Plugin::Flake8BlindExcept,
+        Plugin::Flake8BooleanTrap,
+        Plugin::Flake8Bugbear,
+        Plugin::Flake8Builtins,
+        // Plugin::Flake8Commas,
+        Plugin::Flake8Comprehensions,
+        Plugin::Flake8Datetimez,
+        Plugin::Flake8Debugger,
+        Plugin::Flake8Docstrings,
+        // Plugin::Flake8Eradicate,
+        Plugin::Flake8ErrMsg,
+        Plugin::Flake8Executable,
+        Plugin::Flake8ImplicitStrConcat,
+        // Plugin::Flake8ImportConventions,
+        Plugin::Flake8NoPep420,
+        Plugin::Flake8Pie,
+        Plugin::Flake8Print,
+        Plugin::Flake8PytestStyle,
+        Plugin::Flake8Quotes,
+        Plugin::Flake8Return,
+        Plugin::Flake8Simplify,
+        // Plugin::Flake8TidyImports,
+        // Plugin::Flake8TypeChecking,
+        Plugin::Flake8UnusedArguments,
+        // Plugin::Flake8UsePathlib,
+        Plugin::McCabe,
+        Plugin::PEP8Naming,
+        Plugin::PandasVet,
+        Plugin::Tryceratops,
+    ]
+    .into_iter()
+    .filter(|plugin| {
+        for selector in selectors {
+            if selector
+                .rules(&PreviewOptions::default())
+                .any(|rule| Linter::from(plugin).rules().any(|r| r == rule))
+            {
+                return true;
+            }
+        }
+        false
+    })
+    .collect()
+}
+
+#[cfg(test)]
+mod tests {
+    use std::collections::HashMap;
+
+    use super::{infer_plugins_from_options, Plugin};
+
+    #[test]
+    fn it_infers_plugins() {
+        let actual = infer_plugins_from_options(&HashMap::from([(
+            "inline-quotes".to_string(),
+            Some("single".to_string()),
+        )]));
+        let expected = vec![Plugin::Flake8Quotes];
+        assert_eq!(actual, expected);
+
+        let actual = infer_plugins_from_options(&HashMap::from([(
+            "staticmethod-decorators".to_string(),
+            Some("[]".to_string()),
+        )]));
+        let expected = vec![Plugin::PEP8Naming];
+        assert_eq!(actual, expected);
+    }
+}

crates/flake8_to_ruff/src/pyproject.rs

@@ -0,0 +1,26 @@
+use std::path::Path;
+
+use anyhow::Result;
+use serde::{Deserialize, Serialize};
+
+use super::black::Black;
+use super::isort::Isort;
+use super::pep621::Project;
+
+#[derive(Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub(crate) struct Tools {
+    pub(crate) black: Option<Black>,
+    pub(crate) isort: Option<Isort>,
+}
+
+#[derive(Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub(crate) struct Pyproject {
+    pub(crate) tool: Option<Tools>,
+    pub(crate) project: Option<Project>,
+}
+
+pub(crate) fn parse<P: AsRef<Path>>(path: P) -> Result<Pyproject> {
+    let contents = std::fs::read_to_string(path)?;
+    let pyproject = toml::from_str::<Pyproject>(&contents)?;
+    Ok(pyproject)
+}

crates/red_knot/Cargo.toml

@@ -1,42 +0,0 @@
-[package]
-name = "red_knot"
-version = "0.1.0"
-edition.workspace = true
-rust-version.workspace = true
-homepage.workspace = true
-documentation.workspace = true
-repository.workspace = true
-authors.workspace = true
-license.workspace = true
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-ruff_python_parser = { workspace = true }
-ruff_python_ast = { workspace = true }
-ruff_text_size = { workspace = true }
-ruff_index = { workspace = true }
-ruff_notebook = { workspace = true }
-
-anyhow = { workspace = true }
-bitflags = { workspace = true }
-crossbeam = { workspace = true }
-ctrlc = { version = "3.4.4" }
-dashmap = { workspace = true }
-hashbrown = { workspace = true }
-indexmap = { workspace = true }
-notify = { workspace = true }
-parking_lot = { workspace = true }
-rayon = { workspace = true }
-rustc-hash = { workspace = true }
-smol_str = { version = "0.2.1" }
-tracing = { workspace = true }
-tracing-subscriber = { workspace = true }
-tracing-tree = { workspace = true }
-
-[dev-dependencies]
-textwrap = { version = "0.16.1" }
-tempfile = { workspace = true }
-
-[lints]
-workspace = true

crates/red_knot/README.md

@@ -1,9 +0,0 @@
-# Red Knot
-
-The Red Knot crate contains code working towards multifile analysis, type inference and, ultimately, type-checking. It's very much a work in progress for now.
-
-## Vendored types for the stdlib
-
-Red Knot vendors [typeshed](https://github.com/python/typeshed)'s stubs for the standard library. The vendored stubs can be found in `crates/red_knot/vendor/typeshed`. The file `crates/red_knot/vendor/typeshed/source_commit.txt` tells you the typeshed commit that our vendored stdlib stubs currently correspond to.
-
-The typeshed stubs are updated every two weeks via an automated PR using the `sync_typeshed.yaml` workflow in the `.github/workflows` directory. This workflow can also be triggered at any time via [workflow dispatch](https://docs.github.com/en/actions/using-workflows/manually-running-a-workflow#running-a-workflow).

crates/red_knot/src/ast_ids.rs

@@ -1,415 +0,0 @@
-use std::any::type_name;
-use std::fmt::{Debug, Formatter};
-use std::hash::{Hash, Hasher};
-use std::marker::PhantomData;
-
-use rustc_hash::FxHashMap;
-
-use ruff_index::{Idx, IndexVec};
-use ruff_python_ast::visitor::preorder;
-use ruff_python_ast::visitor::preorder::{PreorderVisitor, TraversalSignal};
-use ruff_python_ast::{
-    AnyNodeRef, AstNode, ExceptHandler, ExceptHandlerExceptHandler, Expr, MatchCase, ModModule,
-    NodeKind, Parameter, Stmt, StmtAnnAssign, StmtAssign, StmtAugAssign, StmtClassDef,
-    StmtFunctionDef, StmtGlobal, StmtImport, StmtImportFrom, StmtNonlocal, StmtTypeAlias,
-    TypeParam, TypeParamParamSpec, TypeParamTypeVar, TypeParamTypeVarTuple, WithItem,
-};
-use ruff_text_size::{Ranged, TextRange};
-
-/// A type agnostic ID that uniquely identifies an AST node in a file.
-#[ruff_index::newtype_index]
-pub struct AstId;
-
-/// A typed ID that uniquely identifies an AST node in a file.
-///
-/// This is different from [`AstId`] in that it is a combination of ID and the type of the node the ID identifies.
-/// Typing the ID prevents mixing IDs of different node types and allows to restrict the API to only accept
-/// nodes for which an ID has been created (not all AST nodes get an ID).
-pub struct TypedAstId<N: HasAstId> {
-    erased: AstId,
-    _marker: PhantomData<fn() -> N>,
-}
-
-impl<N: HasAstId> TypedAstId<N> {
-    /// Upcasts this ID from a more specific node type to a more general node type.
-    pub fn upcast<M: HasAstId>(self) -> TypedAstId<M>
-    where
-        N: Into<M>,
-    {
-        TypedAstId {
-            erased: self.erased,
-            _marker: PhantomData,
-        }
-    }
-}
-
-impl<N: HasAstId> Copy for TypedAstId<N> {}
-impl<N: HasAstId> Clone for TypedAstId<N> {
-    fn clone(&self) -> Self {
-        *self
-    }
-}
-
-impl<N: HasAstId> PartialEq for TypedAstId<N> {
-    fn eq(&self, other: &Self) -> bool {
-        self.erased == other.erased
-    }
-}
-
-impl<N: HasAstId> Eq for TypedAstId<N> {}
-impl<N: HasAstId> Hash for TypedAstId<N> {
-    fn hash<H: Hasher>(&self, state: &mut H) {
-        self.erased.hash(state);
-    }
-}
-
-impl<N: HasAstId> Debug for TypedAstId<N> {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        f.debug_tuple("TypedAstId")
-            .field(&self.erased)
-            .field(&type_name::<N>())
-            .finish()
-    }
-}
-
-pub struct AstIds {
-    ids: IndexVec<AstId, NodeKey>,
-    reverse: FxHashMap<NodeKey, AstId>,
-}
-
-impl AstIds {
-    // TODO rust analyzer doesn't allocate an ID for every node. It only allocates ids for
-    //  nodes with a corresponding HIR element, that is nodes that are definitions.
-    pub fn from_module(module: &ModModule) -> Self {
-        let mut visitor = AstIdsVisitor::default();
-
-        // TODO: visit_module?
-        // Make sure we visit the root
-        visitor.create_id(module);
-        visitor.visit_body(&module.body);
-
-        while let Some(deferred) = visitor.deferred.pop() {
-            match deferred {
-                DeferredNode::FunctionDefinition(def) => {
-                    def.visit_preorder(&mut visitor);
-                }
-                DeferredNode::ClassDefinition(def) => def.visit_preorder(&mut visitor),
-            }
-        }
-
-        AstIds {
-            ids: visitor.ids,
-            reverse: visitor.reverse,
-        }
-    }
-
-    /// Returns the ID to the root node.
-    pub fn root(&self) -> NodeKey {
-        self.ids[AstId::new(0)]
-    }
-
-    /// Returns the [`TypedAstId`] for a node.
-    pub fn ast_id<N: HasAstId>(&self, node: &N) -> TypedAstId<N> {
-        let key = node.syntax_node_key();
-        TypedAstId {
-            erased: self.reverse.get(&key).copied().unwrap(),
-            _marker: PhantomData,
-        }
-    }
-
-    /// Returns the [`TypedAstId`] for the node identified with the given [`TypedNodeKey`].
-    pub fn ast_id_for_key<N: HasAstId>(&self, node: &TypedNodeKey<N>) -> TypedAstId<N> {
-        let ast_id = self.ast_id_for_node_key(node.inner);
-
-        TypedAstId {
-            erased: ast_id,
-            _marker: PhantomData,
-        }
-    }
-
-    /// Returns the untyped [`AstId`] for the node identified by the given `node` key.
-    pub fn ast_id_for_node_key(&self, node: NodeKey) -> AstId {
-        self.reverse
-            .get(&node)
-            .copied()
-            .expect("Can't find node in AstIds map.")
-    }
-
-    /// Returns the [`TypedNodeKey`] for the node identified by the given [`TypedAstId`].
-    pub fn key<N: HasAstId>(&self, id: TypedAstId<N>) -> TypedNodeKey<N> {
-        let syntax_key = self.ids[id.erased];
-
-        TypedNodeKey::new(syntax_key).unwrap()
-    }
-
-    pub fn node_key<H: HasAstId>(&self, id: TypedAstId<H>) -> NodeKey {
-        self.ids[id.erased]
-    }
-}
-
-impl std::fmt::Debug for AstIds {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        let mut map = f.debug_map();
-        for (key, value) in self.ids.iter_enumerated() {
-            map.entry(&key, &value);
-        }
-
-        map.finish()
-    }
-}
-
-impl PartialEq for AstIds {
-    fn eq(&self, other: &Self) -> bool {
-        self.ids == other.ids
-    }
-}
-
-impl Eq for AstIds {}
-
-#[derive(Default)]
-struct AstIdsVisitor<'a> {
-    ids: IndexVec<AstId, NodeKey>,
-    reverse: FxHashMap<NodeKey, AstId>,
-    deferred: Vec<DeferredNode<'a>>,
-}
-
-impl<'a> AstIdsVisitor<'a> {
-    fn create_id<A: HasAstId>(&mut self, node: &A) {
-        let node_key = node.syntax_node_key();
-
-        let id = self.ids.push(node_key);
-        self.reverse.insert(node_key, id);
-    }
-}
-
-impl<'a> PreorderVisitor<'a> for AstIdsVisitor<'a> {
-    fn visit_stmt(&mut self, stmt: &'a Stmt) {
-        match stmt {
-            Stmt::FunctionDef(def) => {
-                self.create_id(def);
-                self.deferred.push(DeferredNode::FunctionDefinition(def));
-                return;
-            }
-            // TODO defer visiting the assignment body, type alias parameters etc?
-            Stmt::ClassDef(def) => {
-                self.create_id(def);
-                self.deferred.push(DeferredNode::ClassDefinition(def));
-                return;
-            }
-            Stmt::Expr(_) => {
-                // Skip
-                return;
-            }
-            Stmt::Return(_) => {}
-            Stmt::Delete(_) => {}
-            Stmt::Assign(assignment) => self.create_id(assignment),
-            Stmt::AugAssign(assignment) => {
-                self.create_id(assignment);
-            }
-            Stmt::AnnAssign(assignment) => self.create_id(assignment),
-            Stmt::TypeAlias(assignment) => self.create_id(assignment),
-            Stmt::For(_) => {}
-            Stmt::While(_) => {}
-            Stmt::If(_) => {}
-            Stmt::With(_) => {}
-            Stmt::Match(_) => {}
-            Stmt::Raise(_) => {}
-            Stmt::Try(_) => {}
-            Stmt::Assert(_) => {}
-            Stmt::Import(import) => self.create_id(import),
-            Stmt::ImportFrom(import_from) => self.create_id(import_from),
-            Stmt::Global(global) => self.create_id(global),
-            Stmt::Nonlocal(non_local) => self.create_id(non_local),
-            Stmt::Pass(_) => {}
-            Stmt::Break(_) => {}
-            Stmt::Continue(_) => {}
-            Stmt::IpyEscapeCommand(_) => {}
-        }
-
-        preorder::walk_stmt(self, stmt);
-    }
-
-    fn visit_expr(&mut self, _expr: &'a Expr) {}
-
-    fn visit_parameter(&mut self, parameter: &'a Parameter) {
-        self.create_id(parameter);
-        preorder::walk_parameter(self, parameter);
-    }
-
-    fn visit_except_handler(&mut self, except_handler: &'a ExceptHandler) {
-        match except_handler {
-            ExceptHandler::ExceptHandler(except_handler) => {
-                self.create_id(except_handler);
-            }
-        }
-
-        preorder::walk_except_handler(self, except_handler);
-    }
-
-    fn visit_with_item(&mut self, with_item: &'a WithItem) {
-        self.create_id(with_item);
-        preorder::walk_with_item(self, with_item);
-    }
-
-    fn visit_match_case(&mut self, match_case: &'a MatchCase) {
-        self.create_id(match_case);
-        preorder::walk_match_case(self, match_case);
-    }
-
-    fn visit_type_param(&mut self, type_param: &'a TypeParam) {
-        self.create_id(type_param);
-    }
-}
-
-enum DeferredNode<'a> {
-    FunctionDefinition(&'a StmtFunctionDef),
-    ClassDefinition(&'a StmtClassDef),
-}
-
-#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
-pub struct TypedNodeKey<N: AstNode> {
-    /// The type erased node key.
-    inner: NodeKey,
-    _marker: PhantomData<fn() -> N>,
-}
-
-impl<N: AstNode> TypedNodeKey<N> {
-    pub fn from_node(node: &N) -> Self {
-        let inner = NodeKey {
-            kind: node.as_any_node_ref().kind(),
-            range: node.range(),
-        };
-        Self {
-            inner,
-            _marker: PhantomData,
-        }
-    }
-
-    pub fn new(node_key: NodeKey) -> Option<Self> {
-        N::can_cast(node_key.kind).then_some(TypedNodeKey {
-            inner: node_key,
-            _marker: PhantomData,
-        })
-    }
-
-    pub fn resolve<'a>(&self, root: AnyNodeRef<'a>) -> Option<N::Ref<'a>> {
-        let node_ref = self.inner.resolve(root)?;
-
-        Some(N::cast_ref(node_ref).unwrap())
-    }
-
-    pub fn resolve_unwrap<'a>(&self, root: AnyNodeRef<'a>) -> N::Ref<'a> {
-        self.resolve(root).expect("node should resolve")
-    }
-
-    pub fn erased(&self) -> &NodeKey {
-        &self.inner
-    }
-}
-
-struct FindNodeKeyVisitor<'a> {
-    key: NodeKey,
-    result: Option<AnyNodeRef<'a>>,
-}
-
-impl<'a> PreorderVisitor<'a> for FindNodeKeyVisitor<'a> {
-    fn enter_node(&mut self, node: AnyNodeRef<'a>) -> TraversalSignal {
-        if self.result.is_some() {
-            return TraversalSignal::Skip;
-        }
-
-        if node.range() == self.key.range && node.kind() == self.key.kind {
-            self.result = Some(node);
-            TraversalSignal::Skip
-        } else if node.range().contains_range(self.key.range) {
-            TraversalSignal::Traverse
-        } else {
-            TraversalSignal::Skip
-        }
-    }
-
-    fn visit_body(&mut self, body: &'a [Stmt]) {
-        // TODO it would be more efficient to use binary search instead of linear
-        for stmt in body {
-            if stmt.range().start() > self.key.range.end() {
-                break;
-            }
-
-            self.visit_stmt(stmt);
-        }
-    }
-}
-
-// TODO an alternative to this is to have a `NodeId` on each node (in increasing order depending on the position).
-//  This would allow to reduce the size of this to a u32.
-//  What would be nice if we could use an `Arc::weak_ref` here but that only works if we use
-//   `Arc` internally
-// TODO: Implement the logic to resolve a node, given a db (and the correct file).
-#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
-pub struct NodeKey {
-    kind: NodeKind,
-    range: TextRange,
-}
-
-impl NodeKey {
-    pub fn resolve<'a>(&self, root: AnyNodeRef<'a>) -> Option<AnyNodeRef<'a>> {
-        // We need to do a binary search here. Only traverse into a node if the range is withint the node
-        let mut visitor = FindNodeKeyVisitor {
-            key: *self,
-            result: None,
-        };
-
-        if visitor.enter_node(root) == TraversalSignal::Traverse {
-            root.visit_preorder(&mut visitor);
-        }
-
-        visitor.result
-    }
-}
-
-/// Marker trait implemented by AST nodes for which we extract the `AstId`.
-pub trait HasAstId: AstNode {
-    fn node_key(&self) -> TypedNodeKey<Self>
-    where
-        Self: Sized,
-    {
-        TypedNodeKey {
-            inner: self.syntax_node_key(),
-            _marker: PhantomData,
-        }
-    }
-
-    fn syntax_node_key(&self) -> NodeKey {
-        NodeKey {
-            kind: self.as_any_node_ref().kind(),
-            range: self.range(),
-        }
-    }
-}
-
-impl HasAstId for StmtFunctionDef {}
-impl HasAstId for StmtClassDef {}
-impl HasAstId for StmtAnnAssign {}
-impl HasAstId for StmtAugAssign {}
-impl HasAstId for StmtAssign {}
-impl HasAstId for StmtTypeAlias {}
-
-impl HasAstId for ModModule {}
-
-impl HasAstId for StmtImport {}
-
-impl HasAstId for StmtImportFrom {}
-
-impl HasAstId for Parameter {}
-
-impl HasAstId for TypeParam {}
-impl HasAstId for Stmt {}
-impl HasAstId for TypeParamTypeVar {}
-impl HasAstId for TypeParamTypeVarTuple {}
-impl HasAstId for TypeParamParamSpec {}
-impl HasAstId for StmtGlobal {}
-impl HasAstId for StmtNonlocal {}
-
-impl HasAstId for ExceptHandlerExceptHandler {}
-impl HasAstId for WithItem {}
-impl HasAstId for MatchCase {}

crates/red_knot/src/cache.rs

@@ -1,165 +0,0 @@
-use std::fmt::Formatter;
-use std::hash::Hash;
-use std::sync::atomic::{AtomicUsize, Ordering};
-
-use crate::db::QueryResult;
-use dashmap::mapref::entry::Entry;
-
-use crate::FxDashMap;
-
-/// Simple key value cache that locks on a per-key level.
-pub struct KeyValueCache<K, V> {
-    map: FxDashMap<K, V>,
-    statistics: CacheStatistics,
-}
-
-impl<K, V> KeyValueCache<K, V>
-where
-    K: Eq + Hash + Clone,
-    V: Clone,
-{
-    pub fn try_get(&self, key: &K) -> Option<V> {
-        if let Some(existing) = self.map.get(key) {
-            self.statistics.hit();
-            Some(existing.clone())
-        } else {
-            self.statistics.miss();
-            None
-        }
-    }
-
-    pub fn get<F>(&self, key: &K, compute: F) -> QueryResult<V>
-    where
-        F: FnOnce(&K) -> QueryResult<V>,
-    {
-        Ok(match self.map.entry(key.clone()) {
-            Entry::Occupied(cached) => {
-                self.statistics.hit();
-
-                cached.get().clone()
-            }
-            Entry::Vacant(vacant) => {
-                self.statistics.miss();
-
-                let value = compute(key)?;
-                vacant.insert(value.clone());
-                value
-            }
-        })
-    }
-
-    pub fn set(&mut self, key: K, value: V) {
-        self.map.insert(key, value);
-    }
-
-    pub fn remove(&mut self, key: &K) -> Option<V> {
-        self.map.remove(key).map(|(_, value)| value)
-    }
-
-    pub fn clear(&mut self) {
-        self.map.clear();
-        self.map.shrink_to_fit();
-    }
-
-    pub fn statistics(&self) -> Option<Statistics> {
-        self.statistics.to_statistics()
-    }
-}
-
-impl<K, V> Default for KeyValueCache<K, V>
-where
-    K: Eq + Hash,
-    V: Clone,
-{
-    fn default() -> Self {
-        Self {
-            map: FxDashMap::default(),
-            statistics: CacheStatistics::default(),
-        }
-    }
-}
-
-impl<K, V> std::fmt::Debug for KeyValueCache<K, V>
-where
-    K: std::fmt::Debug + Eq + Hash,
-    V: std::fmt::Debug,
-{
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        let mut debug = f.debug_map();
-
-        for entry in &self.map {
-            debug.entry(&entry.value(), &entry.key());
-        }
-
-        debug.finish()
-    }
-}
-
-#[derive(Debug, Clone, PartialEq, Eq)]
-pub struct Statistics {
-    pub hits: usize,
-    pub misses: usize,
-}
-
-impl Statistics {
-    #[allow(clippy::cast_precision_loss)]
-    pub fn hit_rate(&self) -> Option<f64> {
-        if self.hits + self.misses == 0 {
-            return None;
-        }
-
-        Some((self.hits as f64) / (self.hits + self.misses) as f64)
-    }
-}
-
-#[cfg(debug_assertions)]
-pub type CacheStatistics = DebugStatistics;
-
-#[cfg(not(debug_assertions))]
-pub type CacheStatistics = ReleaseStatistics;
-
-pub trait StatisticsRecorder {
-    fn hit(&self);
-    fn miss(&self);
-    fn to_statistics(&self) -> Option<Statistics>;
-}
-
-#[derive(Debug, Default)]
-pub struct DebugStatistics {
-    hits: AtomicUsize,
-    misses: AtomicUsize,
-}
-
-impl StatisticsRecorder for DebugStatistics {
-    // TODO figure out appropriate Ordering
-    fn hit(&self) {
-        self.hits.fetch_add(1, Ordering::SeqCst);
-    }
-
-    fn miss(&self) {
-        self.misses.fetch_add(1, Ordering::SeqCst);
-    }
-
-    fn to_statistics(&self) -> Option<Statistics> {
-        let hits = self.hits.load(Ordering::SeqCst);
-        let misses = self.misses.load(Ordering::SeqCst);
-
-        Some(Statistics { hits, misses })
-    }
-}
-
-#[derive(Debug, Default)]
-pub struct ReleaseStatistics;
-
-impl StatisticsRecorder for ReleaseStatistics {
-    #[inline]
-    fn hit(&self) {}
-
-    #[inline]
-    fn miss(&self) {}
-
-    #[inline]
-    fn to_statistics(&self) -> Option<Statistics> {
-        None
-    }
-}

crates/red_knot/src/cancellation.rs

@@ -1,42 +0,0 @@
-use std::sync::atomic::AtomicBool;
-use std::sync::Arc;
-
-#[derive(Debug, Clone, Default)]
-pub struct CancellationTokenSource {
-    signal: Arc<AtomicBool>,
-}
-
-impl CancellationTokenSource {
-    pub fn new() -> Self {
-        Self {
-            signal: Arc::new(AtomicBool::new(false)),
-        }
-    }
-
-    #[tracing::instrument(level = "trace", skip_all)]
-    pub fn cancel(&self) {
-        self.signal.store(true, std::sync::atomic::Ordering::SeqCst);
-    }
-
-    pub fn is_cancelled(&self) -> bool {
-        self.signal.load(std::sync::atomic::Ordering::SeqCst)
-    }
-
-    pub fn token(&self) -> CancellationToken {
-        CancellationToken {
-            signal: self.signal.clone(),
-        }
-    }
-}
-
-#[derive(Clone, Debug)]
-pub struct CancellationToken {
-    signal: Arc<AtomicBool>,
-}
-
-impl CancellationToken {
-    /// Returns `true` if cancellation has been requested.
-    pub fn is_cancelled(&self) -> bool {
-        self.signal.load(std::sync::atomic::Ordering::SeqCst)
-    }
-}

crates/red_knot/src/db.rs

@@ -1,248 +0,0 @@
-use std::sync::Arc;
-
-pub use jars::{HasJar, HasJars};
-pub use query::{QueryError, QueryResult};
-pub use runtime::DbRuntime;
-pub use storage::JarsStorage;
-
-use crate::files::FileId;
-use crate::lint::{LintSemanticStorage, LintSyntaxStorage};
-use crate::module::ModuleResolver;
-use crate::parse::ParsedStorage;
-use crate::source::SourceStorage;
-use crate::symbols::SymbolTablesStorage;
-use crate::types::TypeStore;
-
-mod jars;
-mod query;
-mod runtime;
-mod storage;
-
-pub trait Database {
-    /// Returns a reference to the runtime of the current worker.
-    fn runtime(&self) -> &DbRuntime;
-
-    /// Returns a mutable reference to the runtime. Only one worker can hold a mutable reference to the runtime.
-    fn runtime_mut(&mut self) -> &mut DbRuntime;
-
-    /// Returns `Ok` if the queries have not been cancelled and `Err(QueryError::Cancelled)` otherwise.
-    fn cancelled(&self) -> QueryResult<()> {
-        self.runtime().cancelled()
-    }
-
-    /// Returns `true` if the queries have been cancelled.
-    fn is_cancelled(&self) -> bool {
-        self.runtime().is_cancelled()
-    }
-}
-
-/// Database that supports running queries from multiple threads.
-pub trait ParallelDatabase: Database + Send {
-    /// Creates a snapshot of the database state that can be used to query the database in another thread.
-    ///
-    /// The snapshot is a read-only view of the database but query results are shared between threads.
-    /// All queries will be automatically cancelled when applying any mutations (calling [`HasJars::jars_mut`])
-    /// to the database (not the snapshot, because they're readonly).
-    ///
-    /// ## Creating a snapshot
-    ///
-    /// Creating a snapshot of the database's jars is cheap but creating a snapshot of
-    /// other state stored on the database might require deep-cloning data. That's why you should
-    /// avoid creating snapshots in a hot function (e.g. don't create a snapshot for each file, instead
-    /// create a snapshot when scheduling the check of an entire program).
-    ///
-    /// ## Salsa compatibility
-    /// Salsa prohibits creating a snapshot while running a local query (it's fine if other workers run a query) [[source](https://github.com/salsa-rs/salsa/issues/80)].
-    /// We should avoid creating snapshots while running a query because we might want to adopt Salsa in the future (if we can figure out persistent caching).
-    /// Unfortunately, the infrastructure doesn't provide an automated way of knowing when a query is run, that's
-    /// why we have to "enforce" this constraint manually.
-    #[must_use]
-    fn snapshot(&self) -> Snapshot<Self>;
-}
-
-pub trait DbWithJar<Jar>: Database + HasJar<Jar> {}
-
-/// Readonly snapshot of a database.
-///
-/// ## Dead locks
-/// A snapshot should always be dropped as soon as it is no longer necessary to run queries.
-/// Storing the snapshot without running a query or periodically checking if cancellation was requested
-/// can lead to deadlocks because mutating the [`Database`] requires cancels all pending queries
-/// and waiting for all [`Snapshot`]s to be dropped.
-#[derive(Debug)]
-pub struct Snapshot<DB: ?Sized>
-where
-    DB: ParallelDatabase,
-{
-    db: DB,
-}
-
-impl<DB> Snapshot<DB>
-where
-    DB: ParallelDatabase,
-{
-    pub fn new(db: DB) -> Self {
-        Snapshot { db }
-    }
-}
-
-impl<DB> std::ops::Deref for Snapshot<DB>
-where
-    DB: ParallelDatabase,
-{
-    type Target = DB;
-
-    fn deref(&self) -> &DB {
-        &self.db
-    }
-}
-
-pub trait Upcast<T: ?Sized> {
-    fn upcast(&self) -> &T;
-}
-
-// Red knot specific databases code.
-
-pub trait SourceDb: DbWithJar<SourceJar> {
-    // queries
-    fn file_id(&self, path: &std::path::Path) -> FileId;
-
-    fn file_path(&self, file_id: FileId) -> Arc<std::path::Path>;
-}
-
-pub trait SemanticDb: SourceDb + DbWithJar<SemanticJar> + Upcast<dyn SourceDb> {}
-
-pub trait LintDb: SemanticDb + DbWithJar<LintJar> + Upcast<dyn SemanticDb> {}
-
-pub trait Db: LintDb + Upcast<dyn LintDb> {}
-
-#[derive(Debug, Default)]
-pub struct SourceJar {
-    pub sources: SourceStorage,
-    pub parsed: ParsedStorage,
-}
-
-#[derive(Debug, Default)]
-pub struct SemanticJar {
-    pub module_resolver: ModuleResolver,
-    pub symbol_tables: SymbolTablesStorage,
-    pub type_store: TypeStore,
-}
-
-#[derive(Debug, Default)]
-pub struct LintJar {
-    pub lint_syntax: LintSyntaxStorage,
-    pub lint_semantic: LintSemanticStorage,
-}
-
-#[cfg(test)]
-pub(crate) mod tests {
-    use std::path::Path;
-    use std::sync::Arc;
-
-    use crate::db::{
-        Database, DbRuntime, DbWithJar, HasJar, HasJars, JarsStorage, LintDb, LintJar, QueryResult,
-        SourceDb, SourceJar, Upcast,
-    };
-    use crate::files::{FileId, Files};
-
-    use super::{SemanticDb, SemanticJar};
-
-    // This can be a partial database used in a single crate for testing.
-    // It would hold fewer data than the full database.
-    #[derive(Debug, Default)]
-    pub(crate) struct TestDb {
-        files: Files,
-        jars: JarsStorage<Self>,
-    }
-
-    impl HasJar<SourceJar> for TestDb {
-        fn jar(&self) -> QueryResult<&SourceJar> {
-            Ok(&self.jars()?.0)
-        }
-
-        fn jar_mut(&mut self) -> &mut SourceJar {
-            &mut self.jars_mut().0
-        }
-    }
-
-    impl HasJar<SemanticJar> for TestDb {
-        fn jar(&self) -> QueryResult<&SemanticJar> {
-            Ok(&self.jars()?.1)
-        }
-
-        fn jar_mut(&mut self) -> &mut SemanticJar {
-            &mut self.jars_mut().1
-        }
-    }
-
-    impl HasJar<LintJar> for TestDb {
-        fn jar(&self) -> QueryResult<&LintJar> {
-            Ok(&self.jars()?.2)
-        }
-
-        fn jar_mut(&mut self) -> &mut LintJar {
-            &mut self.jars_mut().2
-        }
-    }
-
-    impl SourceDb for TestDb {
-        fn file_id(&self, path: &Path) -> FileId {
-            self.files.intern(path)
-        }
-
-        fn file_path(&self, file_id: FileId) -> Arc<Path> {
-            self.files.path(file_id)
-        }
-    }
-
-    impl DbWithJar<SourceJar> for TestDb {}
-
-    impl Upcast<dyn SourceDb> for TestDb {
-        fn upcast(&self) -> &(dyn SourceDb + 'static) {
-            self
-        }
-    }
-
-    impl SemanticDb for TestDb {}
-
-    impl DbWithJar<SemanticJar> for TestDb {}
-
-    impl Upcast<dyn SemanticDb> for TestDb {
-        fn upcast(&self) -> &(dyn SemanticDb + 'static) {
-            self
-        }
-    }
-
-    impl LintDb for TestDb {}
-
-    impl Upcast<dyn LintDb> for TestDb {
-        fn upcast(&self) -> &(dyn LintDb + 'static) {
-            self
-        }
-    }
-
-    impl DbWithJar<LintJar> for TestDb {}
-
-    impl HasJars for TestDb {
-        type Jars = (SourceJar, SemanticJar, LintJar);
-
-        fn jars(&self) -> QueryResult<&Self::Jars> {
-            self.jars.jars()
-        }
-
-        fn jars_mut(&mut self) -> &mut Self::Jars {
-            self.jars.jars_mut()
-        }
-    }
-
-    impl Database for TestDb {
-        fn runtime(&self) -> &DbRuntime {
-            self.jars.runtime()
-        }
-
-        fn runtime_mut(&mut self) -> &mut DbRuntime {
-            self.jars.runtime_mut()
-        }
-    }
-}

crates/red_knot/src/db/jars.rs

@@ -1,37 +0,0 @@
-use crate::db::query::QueryResult;
-
-/// Gives access to a specific jar in the database.
-///
-/// Nope, the terminology isn't borrowed from Java but from Salsa <https://salsa-rs.github.io/salsa/>,
-/// which is an analogy to storing the salsa in different jars.
-///
-/// The basic idea is that each crate can define its own jar and the jars can be combined to a single
-/// database in the top level crate. Each crate also defines its own `Database` trait. The combination of
-/// `Database` trait and the jar allows to write queries in isolation without having to know how they get composed at the upper levels.
-///
-/// Salsa further defines a `HasIngredient` trait which slices the jar to a specific storage (e.g. a specific cache).
-/// We don't need this just yet because we write our queries by hand. We may want a similar trait if we decide
-/// to use a macro to generate the queries.
-pub trait HasJar<T> {
-    /// Gives a read-only reference to the jar.
-    fn jar(&self) -> QueryResult<&T>;
-
-    /// Gives a mutable reference to the jar.
-    fn jar_mut(&mut self) -> &mut T;
-}
-
-/// Gives access to the jars in a database.
-pub trait HasJars {
-    /// A type storing the jars.
-    ///
-    /// Most commonly, this is a tuple where each jar is a tuple element.
-    type Jars: Default;
-
-    /// Gives access to the underlying jars but tests if the queries have been cancelled.
-    ///
-    /// Returns `Err(QueryError::Cancelled)` if the queries have been cancelled.
-    fn jars(&self) -> QueryResult<&Self::Jars>;
-
-    /// Gives mutable access to the underlying jars.
-    fn jars_mut(&mut self) -> &mut Self::Jars;
-}

crates/red_knot/src/db/query.rs

@@ -1,20 +0,0 @@
-use std::fmt::{Display, Formatter};
-
-/// Reason why a db query operation failed.
-#[derive(Debug, Clone, Copy)]
-pub enum QueryError {
-    /// The query was cancelled because the DB was mutated or the query was cancelled by the host (e.g. on a file change or when pressing CTRL+C).
-    Cancelled,
-}
-
-impl Display for QueryError {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        match self {
-            QueryError::Cancelled => f.write_str("query was cancelled"),
-        }
-    }
-}
-
-impl std::error::Error for QueryError {}
-
-pub type QueryResult<T> = Result<T, QueryError>;

crates/red_knot/src/db/runtime.rs

@@ -1,41 +0,0 @@
-use crate::cancellation::CancellationTokenSource;
-use crate::db::{QueryError, QueryResult};
-
-/// Holds the jar agnostic state of the database.
-#[derive(Debug, Default)]
-pub struct DbRuntime {
-    /// The cancellation token source used to signal other works that the queries should be aborted and
-    /// exit at the next possible point.
-    cancellation_token: CancellationTokenSource,
-}
-
-impl DbRuntime {
-    pub(super) fn snapshot(&self) -> Self {
-        Self {
-            cancellation_token: self.cancellation_token.clone(),
-        }
-    }
-
-    /// Cancels the pending queries of other workers. The current worker cannot have any pending
-    /// queries because we're holding a mutable reference to the runtime.
-    pub(super) fn cancel_other_workers(&mut self) {
-        self.cancellation_token.cancel();
-        // Set a new cancellation token so that we're in a non-cancelled state again when running the next
-        // query.
-        self.cancellation_token = CancellationTokenSource::default();
-    }
-
-    /// Returns `Ok` if the queries have not been cancelled and `Err(QueryError::Cancelled)` otherwise.
-    pub(super) fn cancelled(&self) -> QueryResult<()> {
-        if self.cancellation_token.is_cancelled() {
-            Err(QueryError::Cancelled)
-        } else {
-            Ok(())
-        }
-    }
-
-    /// Returns `true` if the queries have been cancelled.
-    pub(super) fn is_cancelled(&self) -> bool {
-        self.cancellation_token.is_cancelled()
-    }
-}

crates/red_knot/src/db/storage.rs

@@ -1,117 +0,0 @@
-use std::fmt::Formatter;
-use std::sync::Arc;
-
-use crossbeam::sync::WaitGroup;
-
-use crate::db::query::QueryResult;
-use crate::db::runtime::DbRuntime;
-use crate::db::{HasJars, ParallelDatabase};
-
-/// Stores the jars of a database and the state for each worker.
-///
-/// Today, all state is shared across all workers, but it may be desired to store data per worker in the future.
-pub struct JarsStorage<T>
-where
-    T: HasJars + Sized,
-{
-    // It's important that `jars_wait_group` is declared after `jars` to ensure that `jars` is dropped first.
-    // See https://doc.rust-lang.org/reference/destructors.html
-    /// Stores the jars of the database.
-    jars: Arc<T::Jars>,
-
-    /// Used to count the references to `jars`. Allows implementing `jars_mut` without requiring to clone `jars`.
-    jars_wait_group: WaitGroup,
-
-    /// The data agnostic state.
-    runtime: DbRuntime,
-}
-
-impl<Db> JarsStorage<Db>
-where
-    Db: HasJars,
-{
-    pub(super) fn new() -> Self {
-        Self {
-            jars: Arc::new(Db::Jars::default()),
-            jars_wait_group: WaitGroup::default(),
-            runtime: DbRuntime::default(),
-        }
-    }
-
-    /// Creates a snapshot of the jars.
-    ///
-    /// Creating the snapshot is cheap because it doesn't clone the jars, it only increments a ref counter.
-    #[must_use]
-    pub fn snapshot(&self) -> JarsStorage<Db>
-    where
-        Db: ParallelDatabase,
-    {
-        Self {
-            jars: self.jars.clone(),
-            jars_wait_group: self.jars_wait_group.clone(),
-            runtime: self.runtime.snapshot(),
-        }
-    }
-
-    pub(crate) fn jars(&self) -> QueryResult<&Db::Jars> {
-        self.runtime.cancelled()?;
-        Ok(&self.jars)
-    }
-
-    /// Returns a mutable reference to the jars without cloning their content.
-    ///
-    /// The method cancels any pending queries of other works and waits for them to complete so that
-    /// this instance is the only instance holding a reference to the jars.
-    pub(crate) fn jars_mut(&mut self) -> &mut Db::Jars {
-        // We have a mutable ref here, so no more workers can be spawned between calling this function and taking the mut ref below.
-        self.cancel_other_workers();
-
-        // Now all other references to `self.jars` should have been released. We can now safely return a mutable reference
-        // to the Arc's content.
-        let jars =
-            Arc::get_mut(&mut self.jars).expect("All references to jars should have been released");
-
-        jars
-    }
-
-    pub(crate) fn runtime(&self) -> &DbRuntime {
-        &self.runtime
-    }
-
-    pub(crate) fn runtime_mut(&mut self) -> &mut DbRuntime {
-        // Note: This method may need to use a similar trick to `jars_mut` if `DbRuntime` is ever to store data that is shared between workers.
-        &mut self.runtime
-    }
-
-    #[tracing::instrument(level = "trace", skip(self))]
-    fn cancel_other_workers(&mut self) {
-        self.runtime.cancel_other_workers();
-
-        // Wait for all other works to complete.
-        let existing_wait = std::mem::take(&mut self.jars_wait_group);
-        existing_wait.wait();
-    }
-}
-
-impl<Db> Default for JarsStorage<Db>
-where
-    Db: HasJars,
-{
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
-impl<T> std::fmt::Debug for JarsStorage<T>
-where
-    T: HasJars,
-    <T as HasJars>::Jars: std::fmt::Debug,
-{
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        f.debug_struct("SharedStorage")
-            .field("jars", &self.jars)
-            .field("jars_wait_group", &self.jars_wait_group)
-            .field("runtime", &self.runtime)
-            .finish()
-    }
-}

crates/red_knot/src/files.rs

@@ -1,180 +0,0 @@
-use std::fmt::{Debug, Formatter};
-use std::hash::{Hash, Hasher};
-use std::path::Path;
-use std::sync::Arc;
-
-use hashbrown::hash_map::RawEntryMut;
-use parking_lot::RwLock;
-use rustc_hash::FxHasher;
-
-use ruff_index::{newtype_index, IndexVec};
-
-type Map<K, V> = hashbrown::HashMap<K, V, ()>;
-
-#[newtype_index]
-pub struct FileId;
-
-// TODO we'll need a higher level virtual file system abstraction that allows testing if a file exists
-//  or retrieving its content (ideally lazily and in a way that the memory can be retained later)
-//  I suspect that we'll end up with a FileSystem trait and our own Path abstraction.
-#[derive(Default)]
-pub struct Files {
-    inner: Arc<RwLock<FilesInner>>,
-}
-
-impl Files {
-    #[tracing::instrument(level = "debug", skip(self))]
-    pub fn intern(&self, path: &Path) -> FileId {
-        self.inner.write().intern(path)
-    }
-
-    pub fn try_get(&self, path: &Path) -> Option<FileId> {
-        self.inner.read().try_get(path)
-    }
-
-    #[tracing::instrument(level = "debug", skip(self))]
-    pub fn path(&self, id: FileId) -> Arc<Path> {
-        self.inner.read().path(id)
-    }
-
-    /// Snapshots files for a new database snapshot.
-    ///
-    /// This method should not be used outside a database snapshot.
-    #[must_use]
-    pub fn snapshot(&self) -> Files {
-        Files {
-            inner: self.inner.clone(),
-        }
-    }
-}
-
-impl Debug for Files {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        let files = self.inner.read();
-        let mut debug = f.debug_map();
-        for item in files.iter() {
-            debug.entry(&item.0, &item.1);
-        }
-
-        debug.finish()
-    }
-}
-
-impl PartialEq for Files {
-    fn eq(&self, other: &Self) -> bool {
-        self.inner.read().eq(&other.inner.read())
-    }
-}
-
-impl Eq for Files {}
-
-#[derive(Default)]
-struct FilesInner {
-    by_path: Map<FileId, ()>,
-    // TODO should we use a map here to reclaim the space for removed files?
-    // TODO I think we should use our own path abstraction here to avoid having to normalize paths
-    //  and dealing with non-utf paths everywhere.
-    by_id: IndexVec<FileId, Arc<Path>>,
-}
-
-impl FilesInner {
-    /// Inserts the path and returns a new id for it or returns the id if it is an existing path.
-    // TODO should this accept Path or PathBuf?
-    pub(crate) fn intern(&mut self, path: &Path) -> FileId {
-        let hash = FilesInner::hash_path(path);
-
-        let entry = self
-            .by_path
-            .raw_entry_mut()
-            .from_hash(hash, |existing_file| &*self.by_id[*existing_file] == path);
-
-        match entry {
-            RawEntryMut::Occupied(entry) => *entry.key(),
-            RawEntryMut::Vacant(entry) => {
-                let id = self.by_id.push(Arc::from(path));
-                entry.insert_with_hasher(hash, id, (), |file| {
-                    FilesInner::hash_path(&self.by_id[*file])
-                });
-                id
-            }
-        }
-    }
-
-    fn hash_path(path: &Path) -> u64 {
-        let mut hasher = FxHasher::default();
-        path.hash(&mut hasher);
-        hasher.finish()
-    }
-
-    pub(crate) fn try_get(&self, path: &Path) -> Option<FileId> {
-        let mut hasher = FxHasher::default();
-        path.hash(&mut hasher);
-        let hash = hasher.finish();
-
-        Some(
-            *self
-                .by_path
-                .raw_entry()
-                .from_hash(hash, |existing_file| &*self.by_id[*existing_file] == path)?
-                .0,
-        )
-    }
-
-    /// Returns the path for the file with the given id.
-    pub(crate) fn path(&self, id: FileId) -> Arc<Path> {
-        self.by_id[id].clone()
-    }
-
-    pub(crate) fn iter(&self) -> impl Iterator<Item = (FileId, Arc<Path>)> + '_ {
-        self.by_path.keys().map(|id| (*id, self.by_id[*id].clone()))
-    }
-}
-
-impl PartialEq for FilesInner {
-    fn eq(&self, other: &Self) -> bool {
-        self.by_id == other.by_id
-    }
-}
-
-impl Eq for FilesInner {}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use std::path::PathBuf;
-
-    #[test]
-    fn insert_path_twice_same_id() {
-        let files = Files::default();
-        let path = PathBuf::from("foo/bar");
-        let id1 = files.intern(&path);
-        let id2 = files.intern(&path);
-        assert_eq!(id1, id2);
-    }
-
-    #[test]
-    fn insert_different_paths_different_ids() {
-        let files = Files::default();
-        let path1 = PathBuf::from("foo/bar");
-        let path2 = PathBuf::from("foo/bar/baz");
-        let id1 = files.intern(&path1);
-        let id2 = files.intern(&path2);
-        assert_ne!(id1, id2);
-    }
-
-    #[test]
-    fn four_files() {
-        let files = Files::default();
-        let foo_path = PathBuf::from("foo");
-        let foo_id = files.intern(&foo_path);
-        let bar_path = PathBuf::from("bar");
-        files.intern(&bar_path);
-        let baz_path = PathBuf::from("baz");
-        files.intern(&baz_path);
-        let qux_path = PathBuf::from("qux");
-        files.intern(&qux_path);
-
-        let foo_id_2 = files.try_get(&foo_path).expect("foo_path to be found");
-        assert_eq!(foo_id_2, foo_id);
-    }
-}

crates/red_knot/src/hir.rs

@@ -1,67 +0,0 @@
-//! Key observations
-//!
-//! The HIR (High-Level Intermediate Representation) avoids allocations to large extends by:
-//! * Using an arena per node type
-//! * using ids and id ranges to reference items.
-//!
-//! Using separate arena per node type has the advantage that the IDs are relatively stable, because
-//! they only change when a node of the same kind has been added or removed. (What's unclear is if that matters or if
-//! it still triggers a re-compute because the AST-id in the node has changed).
-//!
-//! The HIR does not store all details. It mainly stores the *public* interface. There's a reference
-//! back to the AST node to get more details.
-//!
-//!
-
-use crate::ast_ids::{HasAstId, TypedAstId};
-use crate::files::FileId;
-use std::fmt::Formatter;
-use std::hash::{Hash, Hasher};
-
-pub struct HirAstId<N: HasAstId> {
-    file_id: FileId,
-    node_id: TypedAstId<N>,
-}
-
-impl<N: HasAstId> Copy for HirAstId<N> {}
-impl<N: HasAstId> Clone for HirAstId<N> {
-    fn clone(&self) -> Self {
-        *self
-    }
-}
-
-impl<N: HasAstId> PartialEq for HirAstId<N> {
-    fn eq(&self, other: &Self) -> bool {
-        self.file_id == other.file_id && self.node_id == other.node_id
-    }
-}
-
-impl<N: HasAstId> Eq for HirAstId<N> {}
-
-impl<N: HasAstId> std::fmt::Debug for HirAstId<N> {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        f.debug_struct("HirAstId")
-            .field("file_id", &self.file_id)
-            .field("node_id", &self.node_id)
-            .finish()
-    }
-}
-
-impl<N: HasAstId> Hash for HirAstId<N> {
-    fn hash<H: Hasher>(&self, state: &mut H) {
-        self.file_id.hash(state);
-        self.node_id.hash(state);
-    }
-}
-
-impl<N: HasAstId> HirAstId<N> {
-    pub fn upcast<M: HasAstId>(self) -> HirAstId<M>
-    where
-        N: Into<M>,
-    {
-        HirAstId {
-            file_id: self.file_id,
-            node_id: self.node_id.upcast(),
-        }
-    }
-}

crates/red_knot/src/hir/definition.rs

@@ -1,556 +0,0 @@
-use std::ops::{Index, Range};
-
-use ruff_index::{newtype_index, IndexVec};
-use ruff_python_ast::visitor::preorder;
-use ruff_python_ast::visitor::preorder::PreorderVisitor;
-use ruff_python_ast::{
-    Decorator, ExceptHandler, ExceptHandlerExceptHandler, Expr, MatchCase, ModModule, Stmt,
-    StmtAnnAssign, StmtAssign, StmtClassDef, StmtFunctionDef, StmtGlobal, StmtImport,
-    StmtImportFrom, StmtNonlocal, StmtTypeAlias, TypeParam, TypeParamParamSpec, TypeParamTypeVar,
-    TypeParamTypeVarTuple, WithItem,
-};
-
-use crate::ast_ids::{AstIds, HasAstId};
-use crate::files::FileId;
-use crate::hir::HirAstId;
-use crate::Name;
-
-#[newtype_index]
-pub struct FunctionId;
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub struct Function {
-    ast_id: HirAstId<StmtFunctionDef>,
-    name: Name,
-    parameters: Range<ParameterId>,
-    type_parameters: Range<TypeParameterId>, // TODO: type_parameters, return expression, decorators
-}
-
-#[newtype_index]
-pub struct ParameterId;
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub struct Parameter {
-    kind: ParameterKind,
-    name: Name,
-    default: Option<()>, // TODO use expression HIR
-    ast_id: HirAstId<ruff_python_ast::Parameter>,
-}
-
-// TODO or should `Parameter` be an enum?
-#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
-pub enum ParameterKind {
-    PositionalOnly,
-    Arguments,
-    Vararg,
-    KeywordOnly,
-    Kwarg,
-}
-
-#[newtype_index]
-pub struct ClassId;
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub struct Class {
-    name: Name,
-    ast_id: HirAstId<StmtClassDef>,
-    // TODO type parameters, inheritance, decorators, members
-}
-
-#[newtype_index]
-pub struct AssignmentId;
-
-// This can have more than one name...
-// but that means we can't implement `name()` on `ModuleItem`.
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub struct Assignment {
-    // TODO: Handle multiple names  / targets
-    name: Name,
-    ast_id: HirAstId<StmtAssign>,
-}
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub struct AnnotatedAssignment {
-    name: Name,
-    ast_id: HirAstId<StmtAnnAssign>,
-}
-
-#[newtype_index]
-pub struct AnnotatedAssignmentId;
-
-#[newtype_index]
-pub struct TypeAliasId;
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub struct TypeAlias {
-    name: Name,
-    ast_id: HirAstId<StmtTypeAlias>,
-    parameters: Range<TypeParameterId>,
-}
-
-#[newtype_index]
-pub struct TypeParameterId;
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub enum TypeParameter {
-    TypeVar(TypeParameterTypeVar),
-    ParamSpec(TypeParameterParamSpec),
-    TypeVarTuple(TypeParameterTypeVarTuple),
-}
-
-impl TypeParameter {
-    pub fn ast_id(&self) -> HirAstId<TypeParam> {
-        match self {
-            TypeParameter::TypeVar(type_var) => type_var.ast_id.upcast(),
-            TypeParameter::ParamSpec(param_spec) => param_spec.ast_id.upcast(),
-            TypeParameter::TypeVarTuple(type_var_tuple) => type_var_tuple.ast_id.upcast(),
-        }
-    }
-}
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub struct TypeParameterTypeVar {
-    name: Name,
-    ast_id: HirAstId<TypeParamTypeVar>,
-}
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub struct TypeParameterParamSpec {
-    name: Name,
-    ast_id: HirAstId<TypeParamParamSpec>,
-}
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub struct TypeParameterTypeVarTuple {
-    name: Name,
-    ast_id: HirAstId<TypeParamTypeVarTuple>,
-}
-
-#[newtype_index]
-pub struct GlobalId;
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub struct Global {
-    // TODO track names
-    ast_id: HirAstId<StmtGlobal>,
-}
-
-#[newtype_index]
-pub struct NonLocalId;
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub struct NonLocal {
-    // TODO track names
-    ast_id: HirAstId<StmtNonlocal>,
-}
-
-pub enum DefinitionId {
-    Function(FunctionId),
-    Parameter(ParameterId),
-    Class(ClassId),
-    Assignment(AssignmentId),
-    AnnotatedAssignment(AnnotatedAssignmentId),
-    Global(GlobalId),
-    NonLocal(NonLocalId),
-    TypeParameter(TypeParameterId),
-    TypeAlias(TypeAlias),
-}
-
-pub enum DefinitionItem {
-    Function(Function),
-    Parameter(Parameter),
-    Class(Class),
-    Assignment(Assignment),
-    AnnotatedAssignment(AnnotatedAssignment),
-    Global(Global),
-    NonLocal(NonLocal),
-    TypeParameter(TypeParameter),
-    TypeAlias(TypeAlias),
-}
-
-// The closest is rust-analyzers item-tree. It only represents "Items" which make the public interface of a module
-// (it excludes any other statement or expressions). rust-analyzer uses it as the main input to the name resolution
-// algorithm
-// > It is the input to the name resolution algorithm, as well as to the queries defined in `adt.rs`,
-// > `data.rs`, and most things in `attr.rs`.
-//
-// > One important purpose of this layer is to provide an "invalidation barrier" for incremental
-// > computations: when typing inside an item body, the `ItemTree` of the modified file is typically
-// > unaffected, so we don't have to recompute name resolution results or item data (see `data.rs`).
-//
-// I haven't fully figured this out but I think that this composes the "public" interface of a module?
-// But maybe that's too optimistic.
-//
-//
-#[derive(Debug, Clone, Default, Eq, PartialEq)]
-pub struct Definitions {
-    functions: IndexVec<FunctionId, Function>,
-    parameters: IndexVec<ParameterId, Parameter>,
-    classes: IndexVec<ClassId, Class>,
-    assignments: IndexVec<AssignmentId, Assignment>,
-    annotated_assignments: IndexVec<AnnotatedAssignmentId, AnnotatedAssignment>,
-    type_aliases: IndexVec<TypeAliasId, TypeAlias>,
-    type_parameters: IndexVec<TypeParameterId, TypeParameter>,
-    globals: IndexVec<GlobalId, Global>,
-    non_locals: IndexVec<NonLocalId, NonLocal>,
-}
-
-impl Definitions {
-    pub fn from_module(module: &ModModule, ast_ids: &AstIds, file_id: FileId) -> Self {
-        let mut visitor = DefinitionsVisitor {
-            definitions: Definitions::default(),
-            ast_ids,
-            file_id,
-        };
-
-        visitor.visit_body(&module.body);
-
-        visitor.definitions
-    }
-}
-
-impl Index<FunctionId> for Definitions {
-    type Output = Function;
-
-    fn index(&self, index: FunctionId) -> &Self::Output {
-        &self.functions[index]
-    }
-}
-
-impl Index<ParameterId> for Definitions {
-    type Output = Parameter;
-
-    fn index(&self, index: ParameterId) -> &Self::Output {
-        &self.parameters[index]
-    }
-}
-
-impl Index<ClassId> for Definitions {
-    type Output = Class;
-
-    fn index(&self, index: ClassId) -> &Self::Output {
-        &self.classes[index]
-    }
-}
-
-impl Index<AssignmentId> for Definitions {
-    type Output = Assignment;
-
-    fn index(&self, index: AssignmentId) -> &Self::Output {
-        &self.assignments[index]
-    }
-}
-
-impl Index<AnnotatedAssignmentId> for Definitions {
-    type Output = AnnotatedAssignment;
-
-    fn index(&self, index: AnnotatedAssignmentId) -> &Self::Output {
-        &self.annotated_assignments[index]
-    }
-}
-
-impl Index<TypeAliasId> for Definitions {
-    type Output = TypeAlias;
-
-    fn index(&self, index: TypeAliasId) -> &Self::Output {
-        &self.type_aliases[index]
-    }
-}
-
-impl Index<GlobalId> for Definitions {
-    type Output = Global;
-
-    fn index(&self, index: GlobalId) -> &Self::Output {
-        &self.globals[index]
-    }
-}
-
-impl Index<NonLocalId> for Definitions {
-    type Output = NonLocal;
-
-    fn index(&self, index: NonLocalId) -> &Self::Output {
-        &self.non_locals[index]
-    }
-}
-
-impl Index<TypeParameterId> for Definitions {
-    type Output = TypeParameter;
-
-    fn index(&self, index: TypeParameterId) -> &Self::Output {
-        &self.type_parameters[index]
-    }
-}
-
-struct DefinitionsVisitor<'a> {
-    definitions: Definitions,
-    ast_ids: &'a AstIds,
-    file_id: FileId,
-}
-
-impl DefinitionsVisitor<'_> {
-    fn ast_id<N: HasAstId>(&self, node: &N) -> HirAstId<N> {
-        HirAstId {
-            file_id: self.file_id,
-            node_id: self.ast_ids.ast_id(node),
-        }
-    }
-
-    fn lower_function_def(&mut self, function: &StmtFunctionDef) -> FunctionId {
-        let name = Name::new(&function.name);
-
-        let first_type_parameter_id = self.definitions.type_parameters.next_index();
-        let mut last_type_parameter_id = first_type_parameter_id;
-
-        if let Some(type_params) = &function.type_params {
-            for parameter in &type_params.type_params {
-                let id = self.lower_type_parameter(parameter);
-                last_type_parameter_id = id;
-            }
-        }
-
-        let parameters = self.lower_parameters(&function.parameters);
-
-        self.definitions.functions.push(Function {
-            name,
-            ast_id: self.ast_id(function),
-            parameters,
-            type_parameters: first_type_parameter_id..last_type_parameter_id,
-        })
-    }
-
-    fn lower_parameters(&mut self, parameters: &ruff_python_ast::Parameters) -> Range<ParameterId> {
-        let first_parameter_id = self.definitions.parameters.next_index();
-        let mut last_parameter_id = first_parameter_id;
-
-        for parameter in &parameters.posonlyargs {
-            last_parameter_id = self.definitions.parameters.push(Parameter {
-                kind: ParameterKind::PositionalOnly,
-                name: Name::new(&parameter.parameter.name),
-                default: None,
-                ast_id: self.ast_id(&parameter.parameter),
-            });
-        }
-
-        if let Some(vararg) = &parameters.vararg {
-            last_parameter_id = self.definitions.parameters.push(Parameter {
-                kind: ParameterKind::Vararg,
-                name: Name::new(&vararg.name),
-                default: None,
-                ast_id: self.ast_id(vararg),
-            });
-        }
-
-        for parameter in &parameters.kwonlyargs {
-            last_parameter_id = self.definitions.parameters.push(Parameter {
-                kind: ParameterKind::KeywordOnly,
-                name: Name::new(&parameter.parameter.name),
-                default: None,
-                ast_id: self.ast_id(&parameter.parameter),
-            });
-        }
-
-        if let Some(kwarg) = &parameters.kwarg {
-            last_parameter_id = self.definitions.parameters.push(Parameter {
-                kind: ParameterKind::KeywordOnly,
-                name: Name::new(&kwarg.name),
-                default: None,
-                ast_id: self.ast_id(kwarg),
-            });
-        }
-
-        first_parameter_id..last_parameter_id
-    }
-
-    fn lower_class_def(&mut self, class: &StmtClassDef) -> ClassId {
-        let name = Name::new(&class.name);
-
-        self.definitions.classes.push(Class {
-            name,
-            ast_id: self.ast_id(class),
-        })
-    }
-
-    fn lower_assignment(&mut self, assignment: &StmtAssign) {
-        // FIXME handle multiple names
-        if let Some(Expr::Name(name)) = assignment.targets.first() {
-            self.definitions.assignments.push(Assignment {
-                name: Name::new(&name.id),
-                ast_id: self.ast_id(assignment),
-            });
-        }
-    }
-
-    fn lower_annotated_assignment(&mut self, annotated_assignment: &StmtAnnAssign) {
-        if let Expr::Name(name) = &*annotated_assignment.target {
-            self.definitions
-                .annotated_assignments
-                .push(AnnotatedAssignment {
-                    name: Name::new(&name.id),
-                    ast_id: self.ast_id(annotated_assignment),
-                });
-        }
-    }
-
-    fn lower_type_alias(&mut self, type_alias: &StmtTypeAlias) {
-        if let Expr::Name(name) = &*type_alias.name {
-            let name = Name::new(&name.id);
-
-            let lower_parameters_id = self.definitions.type_parameters.next_index();
-            let mut last_parameter_id = lower_parameters_id;
-
-            if let Some(type_params) = &type_alias.type_params {
-                for type_parameter in &type_params.type_params {
-                    let id = self.lower_type_parameter(type_parameter);
-                    last_parameter_id = id;
-                }
-            }
-
-            self.definitions.type_aliases.push(TypeAlias {
-                name,
-                ast_id: self.ast_id(type_alias),
-                parameters: lower_parameters_id..last_parameter_id,
-            });
-        }
-    }
-
-    fn lower_type_parameter(&mut self, type_parameter: &TypeParam) -> TypeParameterId {
-        match type_parameter {
-            TypeParam::TypeVar(type_var) => {
-                self.definitions
-                    .type_parameters
-                    .push(TypeParameter::TypeVar(TypeParameterTypeVar {
-                        name: Name::new(&type_var.name),
-                        ast_id: self.ast_id(type_var),
-                    }))
-            }
-            TypeParam::ParamSpec(param_spec) => {
-                self.definitions
-                    .type_parameters
-                    .push(TypeParameter::ParamSpec(TypeParameterParamSpec {
-                        name: Name::new(&param_spec.name),
-                        ast_id: self.ast_id(param_spec),
-                    }))
-            }
-            TypeParam::TypeVarTuple(type_var_tuple) => {
-                self.definitions
-                    .type_parameters
-                    .push(TypeParameter::TypeVarTuple(TypeParameterTypeVarTuple {
-                        name: Name::new(&type_var_tuple.name),
-                        ast_id: self.ast_id(type_var_tuple),
-                    }))
-            }
-        }
-    }
-
-    fn lower_import(&mut self, _import: &StmtImport) {
-        // TODO
-    }
-
-    fn lower_import_from(&mut self, _import_from: &StmtImportFrom) {
-        // TODO
-    }
-
-    fn lower_global(&mut self, global: &StmtGlobal) -> GlobalId {
-        self.definitions.globals.push(Global {
-            ast_id: self.ast_id(global),
-        })
-    }
-
-    fn lower_non_local(&mut self, non_local: &StmtNonlocal) -> NonLocalId {
-        self.definitions.non_locals.push(NonLocal {
-            ast_id: self.ast_id(non_local),
-        })
-    }
-
-    fn lower_except_handler(&mut self, _except_handler: &ExceptHandlerExceptHandler) {
-        // TODO
-    }
-
-    fn lower_with_item(&mut self, _with_item: &WithItem) {
-        // TODO
-    }
-
-    fn lower_match_case(&mut self, _match_case: &MatchCase) {
-        // TODO
-    }
-}
-
-impl PreorderVisitor<'_> for DefinitionsVisitor<'_> {
-    fn visit_stmt(&mut self, stmt: &Stmt) {
-        match stmt {
-            // Definition statements
-            Stmt::FunctionDef(definition) => {
-                self.lower_function_def(definition);
-                self.visit_body(&definition.body);
-            }
-            Stmt::ClassDef(definition) => {
-                self.lower_class_def(definition);
-                self.visit_body(&definition.body);
-            }
-            Stmt::Assign(assignment) => {
-                self.lower_assignment(assignment);
-            }
-            Stmt::AnnAssign(annotated_assignment) => {
-                self.lower_annotated_assignment(annotated_assignment);
-            }
-            Stmt::TypeAlias(type_alias) => {
-                self.lower_type_alias(type_alias);
-            }
-
-            Stmt::Import(import) => self.lower_import(import),
-            Stmt::ImportFrom(import_from) => self.lower_import_from(import_from),
-            Stmt::Global(global) => {
-                self.lower_global(global);
-            }
-            Stmt::Nonlocal(non_local) => {
-                self.lower_non_local(non_local);
-            }
-
-            // Visit the compound statement bodies because they can contain other definitions.
-            Stmt::For(_)
-            | Stmt::While(_)
-            | Stmt::If(_)
-            | Stmt::With(_)
-            | Stmt::Match(_)
-            | Stmt::Try(_) => {
-                preorder::walk_stmt(self, stmt);
-            }
-
-            // Skip over simple statements because they can't contain any other definitions.
-            Stmt::Return(_)
-            | Stmt::Delete(_)
-            | Stmt::AugAssign(_)
-            | Stmt::Raise(_)
-            | Stmt::Assert(_)
-            | Stmt::Expr(_)
-            | Stmt::Pass(_)
-            | Stmt::Break(_)
-            | Stmt::Continue(_)
-            | Stmt::IpyEscapeCommand(_) => {
-                // No op
-            }
-        }
-    }
-
-    fn visit_expr(&mut self, _: &'_ Expr) {}
-
-    fn visit_decorator(&mut self, _decorator: &'_ Decorator) {}
-
-    fn visit_except_handler(&mut self, except_handler: &'_ ExceptHandler) {
-        match except_handler {
-            ExceptHandler::ExceptHandler(except_handler) => {
-                self.lower_except_handler(except_handler);
-            }
-        }
-    }
-
-    fn visit_with_item(&mut self, with_item: &'_ WithItem) {
-        self.lower_with_item(with_item);
-    }
-
-    fn visit_match_case(&mut self, match_case: &'_ MatchCase) {
-        self.lower_match_case(match_case);
-        self.visit_body(&match_case.body);
-    }
-}

crates/red_knot/src/lib.rs

@@ -1,109 +0,0 @@
-use std::fmt::Formatter;
-use std::hash::BuildHasherDefault;
-use std::ops::Deref;
-use std::path::{Path, PathBuf};
-
-use rustc_hash::{FxHashSet, FxHasher};
-
-use crate::files::FileId;
-
-pub mod ast_ids;
-pub mod cache;
-pub mod cancellation;
-pub mod db;
-pub mod files;
-pub mod hir;
-pub mod lint;
-pub mod module;
-mod parse;
-pub mod program;
-pub mod source;
-mod symbols;
-mod types;
-pub mod watch;
-
-pub(crate) type FxDashMap<K, V> = dashmap::DashMap<K, V, BuildHasherDefault<FxHasher>>;
-#[allow(unused)]
-pub(crate) type FxDashSet<V> = dashmap::DashSet<V, BuildHasherDefault<FxHasher>>;
-pub(crate) type FxIndexSet<V> = indexmap::set::IndexSet<V, BuildHasherDefault<FxHasher>>;
-
-#[derive(Debug, Clone)]
-pub struct Workspace {
-    /// TODO this should be a resolved path. We should probably use a newtype wrapper that guarantees that
-    /// PATH is a UTF-8 path and is normalized.
-    root: PathBuf,
-    /// The files that are open in the workspace.
-    ///
-    /// * Editor: The files that are actively being edited in the editor (the user has a tab open with the file).
-    /// * CLI: The resolved files passed as arguments to the CLI.
-    open_files: FxHashSet<FileId>,
-}
-
-impl Workspace {
-    pub fn new(root: PathBuf) -> Self {
-        Self {
-            root,
-            open_files: FxHashSet::default(),
-        }
-    }
-
-    pub fn root(&self) -> &Path {
-        self.root.as_path()
-    }
-
-    // TODO having the content in workspace feels wrong.
-    pub fn open_file(&mut self, file_id: FileId) {
-        self.open_files.insert(file_id);
-    }
-
-    pub fn close_file(&mut self, file_id: FileId) {
-        self.open_files.remove(&file_id);
-    }
-
-    // TODO introduce an `OpenFile` type instead of using an anonymous tuple.
-    pub fn open_files(&self) -> impl Iterator<Item = FileId> + '_ {
-        self.open_files.iter().copied()
-    }
-
-    pub fn is_file_open(&self, file_id: FileId) -> bool {
-        self.open_files.contains(&file_id)
-    }
-}
-
-#[derive(Debug, Clone, Eq, PartialEq, Hash)]
-pub struct Name(smol_str::SmolStr);
-
-impl Name {
-    #[inline]
-    pub fn new(name: &str) -> Self {
-        Self(smol_str::SmolStr::new(name))
-    }
-
-    pub fn as_str(&self) -> &str {
-        self.0.as_str()
-    }
-}
-
-impl Deref for Name {
-    type Target = str;
-
-    #[inline]
-    fn deref(&self) -> &Self::Target {
-        self.as_str()
-    }
-}
-
-impl<T> From<T> for Name
-where
-    T: Into<smol_str::SmolStr>,
-{
-    fn from(value: T) -> Self {
-        Self(value.into())
-    }
-}
-
-impl std::fmt::Display for Name {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        f.write_str(self.as_str())
-    }
-}

crates/red_knot/src/lint.rs

@@ -1,321 +0,0 @@
-use std::cell::RefCell;
-use std::ops::{Deref, DerefMut};
-use std::sync::Arc;
-use std::time::Duration;
-
-use ruff_python_ast::visitor::Visitor;
-use ruff_python_ast::{ModModule, StringLiteral};
-
-use crate::cache::KeyValueCache;
-use crate::db::{LintDb, LintJar, QueryResult};
-use crate::files::FileId;
-use crate::module::ModuleName;
-use crate::parse::{parse, Parsed};
-use crate::source::{source_text, Source};
-use crate::symbols::{
-    resolve_global_symbol, symbol_table, Definition, GlobalSymbolId, SymbolId, SymbolTable,
-};
-use crate::types::{infer_definition_type, infer_symbol_type, Type};
-
-#[tracing::instrument(level = "debug", skip(db))]
-pub(crate) fn lint_syntax(db: &dyn LintDb, file_id: FileId) -> QueryResult<Diagnostics> {
-    let lint_jar: &LintJar = db.jar()?;
-    let storage = &lint_jar.lint_syntax;
-
-    #[allow(clippy::print_stdout)]
-    if std::env::var("RED_KNOT_SLOW_LINT").is_ok() {
-        for i in 0..10 {
-            db.cancelled()?;
-            println!("RED_KNOT_SLOW_LINT is set, sleeping for {i}/10 seconds");
-            std::thread::sleep(Duration::from_secs(1));
-        }
-    }
-
-    storage.get(&file_id, |file_id| {
-        let mut diagnostics = Vec::new();
-
-        let source = source_text(db.upcast(), *file_id)?;
-        lint_lines(source.text(), &mut diagnostics);
-
-        let parsed = parse(db.upcast(), *file_id)?;
-
-        if parsed.errors().is_empty() {
-            let ast = parsed.ast();
-
-            let mut visitor = SyntaxLintVisitor {
-                diagnostics,
-                source: source.text(),
-            };
-            visitor.visit_body(&ast.body);
-            diagnostics = visitor.diagnostics;
-        } else {
-            diagnostics.extend(parsed.errors().iter().map(std::string::ToString::to_string));
-        }
-
-        Ok(Diagnostics::from(diagnostics))
-    })
-}
-
-fn lint_lines(source: &str, diagnostics: &mut Vec<String>) {
-    for (line_number, line) in source.lines().enumerate() {
-        if line.len() < 88 {
-            continue;
-        }
-
-        let char_count = line.chars().count();
-        if char_count > 88 {
-            diagnostics.push(format!(
-                "Line {} is too long ({} characters)",
-                line_number + 1,
-                char_count
-            ));
-        }
-    }
-}
-
-#[tracing::instrument(level = "debug", skip(db))]
-pub(crate) fn lint_semantic(db: &dyn LintDb, file_id: FileId) -> QueryResult<Diagnostics> {
-    let lint_jar: &LintJar = db.jar()?;
-    let storage = &lint_jar.lint_semantic;
-
-    storage.get(&file_id, |file_id| {
-        let source = source_text(db.upcast(), *file_id)?;
-        let parsed = parse(db.upcast(), *file_id)?;
-        let symbols = symbol_table(db.upcast(), *file_id)?;
-
-        let context = SemanticLintContext {
-            file_id: *file_id,
-            source,
-            parsed,
-            symbols,
-            db,
-            diagnostics: RefCell::new(Vec::new()),
-        };
-
-        lint_unresolved_imports(&context)?;
-        lint_bad_overrides(&context)?;
-
-        Ok(Diagnostics::from(context.diagnostics.take()))
-    })
-}
-
-fn lint_unresolved_imports(context: &SemanticLintContext) -> QueryResult<()> {
-    // TODO: Consider iterating over the dependencies (imports) only instead of all definitions.
-    for (symbol, definition) in context.symbols().all_definitions() {
-        match definition {
-            Definition::Import(import) => {
-                let ty = context.infer_symbol_type(symbol)?;
-
-                if ty.is_unknown() {
-                    context.push_diagnostic(format!("Unresolved module {}", import.module));
-                }
-            }
-            Definition::ImportFrom(import) => {
-                let ty = context.infer_symbol_type(symbol)?;
-
-                if ty.is_unknown() {
-                    let module_name = import.module().map(Deref::deref).unwrap_or_default();
-                    let message = if import.level() > 0 {
-                        format!(
-                            "Unresolved relative import '{}' from {}{}",
-                            import.name(),
-                            ".".repeat(import.level() as usize),
-                            module_name
-                        )
-                    } else {
-                        format!(
-                            "Unresolved import '{}' from '{}'",
-                            import.name(),
-                            module_name
-                        )
-                    };
-
-                    context.push_diagnostic(message);
-                }
-            }
-            _ => {}
-        }
-    }
-
-    Ok(())
-}
-
-fn lint_bad_overrides(context: &SemanticLintContext) -> QueryResult<()> {
-    // TODO we should have a special marker on the real typing module (from typeshed) so if you
-    // have your own "typing" module in your project, we don't consider it THE typing module (and
-    // same for other stdlib modules that our lint rules care about)
-    let Some(typing_override) =
-        resolve_global_symbol(context.db.upcast(), ModuleName::new("typing"), "override")?
-    else {
-        // TODO once we bundle typeshed, this should be unreachable!()
-        return Ok(());
-    };
-
-    // TODO we should maybe index definitions by type instead of iterating all, or else iterate all
-    // just once, match, and branch to all lint rules that care about a type of definition
-    for (symbol, definition) in context.symbols().all_definitions() {
-        if !matches!(definition, Definition::FunctionDef(_)) {
-            continue;
-        }
-        let ty = infer_definition_type(
-            context.db.upcast(),
-            GlobalSymbolId {
-                file_id: context.file_id,
-                symbol_id: symbol,
-            },
-            definition.clone(),
-        )?;
-        let Type::Function(func) = ty else {
-            unreachable!("type of a FunctionDef should always be a Function");
-        };
-        let Some(class) = func.get_containing_class(context.db.upcast())? else {
-            // not a method of a class
-            continue;
-        };
-        if func.has_decorator(context.db.upcast(), typing_override)? {
-            let method_name = func.name(context.db.upcast())?;
-            if class
-                .get_super_class_member(context.db.upcast(), &method_name)?
-                .is_none()
-            {
-                // TODO should have a qualname() method to support nested classes
-                context.push_diagnostic(
-                    format!(
-                        "Method {}.{} is decorated with `typing.override` but does not override any base class method",
-                        class.name(context.db.upcast())?,
-                        method_name,
-                    ));
-            }
-        }
-    }
-    Ok(())
-}
-
-pub struct SemanticLintContext<'a> {
-    file_id: FileId,
-    source: Source,
-    parsed: Parsed,
-    symbols: Arc<SymbolTable>,
-    db: &'a dyn LintDb,
-    diagnostics: RefCell<Vec<String>>,
-}
-
-impl<'a> SemanticLintContext<'a> {
-    pub fn source_text(&self) -> &str {
-        self.source.text()
-    }
-
-    pub fn file_id(&self) -> FileId {
-        self.file_id
-    }
-
-    pub fn ast(&self) -> &ModModule {
-        self.parsed.ast()
-    }
-
-    pub fn symbols(&self) -> &SymbolTable {
-        &self.symbols
-    }
-
-    pub fn infer_symbol_type(&self, symbol_id: SymbolId) -> QueryResult<Type> {
-        infer_symbol_type(
-            self.db.upcast(),
-            GlobalSymbolId {
-                file_id: self.file_id,
-                symbol_id,
-            },
-        )
-    }
-
-    pub fn push_diagnostic(&self, diagnostic: String) {
-        self.diagnostics.borrow_mut().push(diagnostic);
-    }
-
-    pub fn extend_diagnostics(&mut self, diagnostics: impl IntoIterator<Item = String>) {
-        self.diagnostics.get_mut().extend(diagnostics);
-    }
-}
-
-#[derive(Debug)]
-struct SyntaxLintVisitor<'a> {
-    diagnostics: Vec<String>,
-    source: &'a str,
-}
-
-impl Visitor<'_> for SyntaxLintVisitor<'_> {
-    fn visit_string_literal(&mut self, string_literal: &'_ StringLiteral) {
-        // A very naive implementation of use double quotes
-        let text = &self.source[string_literal.range];
-
-        if text.starts_with('\'') {
-            self.diagnostics
-                .push("Use double quotes for strings".to_string());
-        }
-    }
-}
-
-#[derive(Debug, Clone)]
-pub enum Diagnostics {
-    Empty,
-    List(Arc<Vec<String>>),
-}
-
-impl Diagnostics {
-    pub fn as_slice(&self) -> &[String] {
-        match self {
-            Diagnostics::Empty => &[],
-            Diagnostics::List(list) => list.as_slice(),
-        }
-    }
-}
-
-impl Deref for Diagnostics {
-    type Target = [String];
-    fn deref(&self) -> &Self::Target {
-        self.as_slice()
-    }
-}
-
-impl From<Vec<String>> for Diagnostics {
-    fn from(value: Vec<String>) -> Self {
-        if value.is_empty() {
-            Diagnostics::Empty
-        } else {
-            Diagnostics::List(Arc::new(value))
-        }
-    }
-}
-
-#[derive(Default, Debug)]
-pub struct LintSyntaxStorage(KeyValueCache<FileId, Diagnostics>);
-
-impl Deref for LintSyntaxStorage {
-    type Target = KeyValueCache<FileId, Diagnostics>;
-
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl DerefMut for LintSyntaxStorage {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.0
-    }
-}
-
-#[derive(Default, Debug)]
-pub struct LintSemanticStorage(KeyValueCache<FileId, Diagnostics>);
-
-impl Deref for LintSemanticStorage {
-    type Target = KeyValueCache<FileId, Diagnostics>;
-
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl DerefMut for LintSemanticStorage {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.0
-    }
-}

crates/red_knot/src/main.rs

@@ -1,359 +0,0 @@
-#![allow(clippy::dbg_macro)]
-
-use std::path::Path;
-use std::sync::Mutex;
-
-use crossbeam::channel as crossbeam_channel;
-use tracing::subscriber::Interest;
-use tracing::{Level, Metadata};
-use tracing_subscriber::filter::LevelFilter;
-use tracing_subscriber::layer::{Context, Filter, SubscriberExt};
-use tracing_subscriber::{Layer, Registry};
-use tracing_tree::time::Uptime;
-
-use red_knot::db::{HasJar, ParallelDatabase, QueryError, SourceDb, SourceJar};
-use red_knot::module::{set_module_search_paths, ModuleSearchPath, ModuleSearchPathKind};
-use red_knot::program::check::ExecutionMode;
-use red_knot::program::{FileWatcherChange, Program};
-use red_knot::watch::FileWatcher;
-use red_knot::Workspace;
-
-#[allow(clippy::print_stdout, clippy::unnecessary_wraps, clippy::print_stderr)]
-fn main() -> anyhow::Result<()> {
-    setup_tracing();
-
-    let arguments: Vec<_> = std::env::args().collect();
-
-    if arguments.len() < 2 {
-        eprintln!("Usage: red_knot <path>");
-        return Err(anyhow::anyhow!("Invalid arguments"));
-    }
-
-    let entry_point = Path::new(&arguments[1]);
-
-    if !entry_point.exists() {
-        eprintln!("The entry point does not exist.");
-        return Err(anyhow::anyhow!("Invalid arguments"));
-    }
-
-    if !entry_point.is_file() {
-        eprintln!("The entry point is not a file.");
-        return Err(anyhow::anyhow!("Invalid arguments"));
-    }
-
-    let workspace_folder = entry_point.parent().unwrap();
-    let workspace = Workspace::new(workspace_folder.to_path_buf());
-
-    let workspace_search_path = ModuleSearchPath::new(
-        workspace.root().to_path_buf(),
-        ModuleSearchPathKind::FirstParty,
-    );
-    let mut program = Program::new(workspace);
-    set_module_search_paths(&mut program, vec![workspace_search_path]);
-
-    let entry_id = program.file_id(entry_point);
-    program.workspace_mut().open_file(entry_id);
-
-    let (main_loop, main_loop_cancellation_token) = MainLoop::new();
-
-    // Listen to Ctrl+C and abort the watch mode.
-    let main_loop_cancellation_token = Mutex::new(Some(main_loop_cancellation_token));
-    ctrlc::set_handler(move || {
-        let mut lock = main_loop_cancellation_token.lock().unwrap();
-
-        if let Some(token) = lock.take() {
-            token.stop();
-        }
-    })?;
-
-    let file_changes_notifier = main_loop.file_changes_notifier();
-
-    // Watch for file changes and re-trigger the analysis.
-    let mut file_watcher = FileWatcher::new(move |changes| {
-        file_changes_notifier.notify(changes);
-    })?;
-
-    file_watcher.watch_folder(workspace_folder)?;
-
-    main_loop.run(&mut program);
-
-    let source_jar: &SourceJar = program.jar().unwrap();
-
-    dbg!(source_jar.parsed.statistics());
-    dbg!(source_jar.sources.statistics());
-
-    Ok(())
-}
-
-struct MainLoop {
-    orchestrator_sender: crossbeam_channel::Sender<OrchestratorMessage>,
-    main_loop_receiver: crossbeam_channel::Receiver<MainLoopMessage>,
-}
-
-impl MainLoop {
-    fn new() -> (Self, MainLoopCancellationToken) {
-        let (orchestrator_sender, orchestrator_receiver) = crossbeam_channel::bounded(1);
-        let (main_loop_sender, main_loop_receiver) = crossbeam_channel::bounded(1);
-
-        let mut orchestrator = Orchestrator {
-            receiver: orchestrator_receiver,
-            sender: main_loop_sender.clone(),
-            revision: 0,
-        };
-
-        std::thread::spawn(move || {
-            orchestrator.run();
-        });
-
-        (
-            Self {
-                orchestrator_sender,
-                main_loop_receiver,
-            },
-            MainLoopCancellationToken {
-                sender: main_loop_sender,
-            },
-        )
-    }
-
-    fn file_changes_notifier(&self) -> FileChangesNotifier {
-        FileChangesNotifier {
-            sender: self.orchestrator_sender.clone(),
-        }
-    }
-
-    fn run(self, program: &mut Program) {
-        self.orchestrator_sender
-            .send(OrchestratorMessage::Run)
-            .unwrap();
-
-        for message in &self.main_loop_receiver {
-            tracing::trace!("Main Loop: Tick");
-
-            match message {
-                MainLoopMessage::CheckProgram { revision } => {
-                    let program = program.snapshot();
-                    let sender = self.orchestrator_sender.clone();
-
-                    // Spawn a new task that checks the program. This needs to be done in a separate thread
-                    // to prevent blocking the main loop here.
-                    rayon::spawn(move || match program.check(ExecutionMode::ThreadPool) {
-                        Ok(result) => {
-                            sender
-                                .send(OrchestratorMessage::CheckProgramCompleted {
-                                    diagnostics: result,
-                                    revision,
-                                })
-                                .unwrap();
-                        }
-                        Err(QueryError::Cancelled) => {}
-                    });
-                }
-                MainLoopMessage::ApplyChanges(changes) => {
-                    // Automatically cancels any pending queries and waits for them to complete.
-                    program.apply_changes(changes);
-                }
-                MainLoopMessage::CheckCompleted(diagnostics) => {
-                    dbg!(diagnostics);
-                }
-                MainLoopMessage::Exit => {
-                    return;
-                }
-            }
-        }
-    }
-}
-
-impl Drop for MainLoop {
-    fn drop(&mut self) {
-        self.orchestrator_sender
-            .send(OrchestratorMessage::Shutdown)
-            .unwrap();
-    }
-}
-
-#[derive(Debug, Clone)]
-struct FileChangesNotifier {
-    sender: crossbeam_channel::Sender<OrchestratorMessage>,
-}
-
-impl FileChangesNotifier {
-    fn notify(&self, changes: Vec<FileWatcherChange>) {
-        self.sender
-            .send(OrchestratorMessage::FileChanges(changes))
-            .unwrap();
-    }
-}
-
-#[derive(Debug)]
-struct MainLoopCancellationToken {
-    sender: crossbeam_channel::Sender<MainLoopMessage>,
-}
-
-impl MainLoopCancellationToken {
-    fn stop(self) {
-        self.sender.send(MainLoopMessage::Exit).unwrap();
-    }
-}
-
-struct Orchestrator {
-    /// Sends messages to the main loop.
-    sender: crossbeam_channel::Sender<MainLoopMessage>,
-    /// Receives messages from the main loop.
-    receiver: crossbeam_channel::Receiver<OrchestratorMessage>,
-    revision: usize,
-}
-
-impl Orchestrator {
-    fn run(&mut self) {
-        while let Ok(message) = self.receiver.recv() {
-            match message {
-                OrchestratorMessage::Run => {
-                    self.sender
-                        .send(MainLoopMessage::CheckProgram {
-                            revision: self.revision,
-                        })
-                        .unwrap();
-                }
-
-                OrchestratorMessage::CheckProgramCompleted {
-                    diagnostics,
-                    revision,
-                } => {
-                    // Only take the diagnostics if they are for the latest revision.
-                    if self.revision == revision {
-                        self.sender
-                            .send(MainLoopMessage::CheckCompleted(diagnostics))
-                            .unwrap();
-                    } else {
-                        tracing::debug!("Discarding diagnostics for outdated revision {revision} (current: {}).", self.revision);
-                    }
-                }
-
-                OrchestratorMessage::FileChanges(changes) => {
-                    // Request cancellation, but wait until all analysis tasks have completed to
-                    // avoid stale messages in the next main loop.
-
-                    self.revision += 1;
-                    self.debounce_changes(changes);
-                }
-                OrchestratorMessage::Shutdown => {
-                    return self.shutdown();
-                }
-            }
-        }
-    }
-
-    fn debounce_changes(&self, mut changes: Vec<FileWatcherChange>) {
-        loop {
-            // Consume possibly incoming file change messages before running a new analysis, but don't wait for more than 100ms.
-            crossbeam_channel::select! {
-                recv(self.receiver) -> message => {
-                    match message {
-                        Ok(OrchestratorMessage::Shutdown) => {
-                            return self.shutdown();
-                        }
-                        Ok(OrchestratorMessage::FileChanges(file_changes)) => {
-                            changes.extend(file_changes);
-                        }
-
-                        Ok(OrchestratorMessage::CheckProgramCompleted { .. })=> {
-                            // disregard any outdated completion message.
-                        }
-                        Ok(OrchestratorMessage::Run) => unreachable!("The orchestrator is already running."),
-
-                        Err(_) => {
-                            // There are no more senders, no point in waiting for more messages
-                            return;
-                        }
-                    }
-                },
-                default(std::time::Duration::from_millis(10)) => {
-                    // No more file changes after 10 ms, send the changes and schedule a new analysis
-                    self.sender.send(MainLoopMessage::ApplyChanges(changes)).unwrap();
-                    self.sender.send(MainLoopMessage::CheckProgram { revision: self.revision}).unwrap();
-                    return;
-                }
-            }
-        }
-    }
-
-    #[allow(clippy::unused_self)]
-    fn shutdown(&self) {
-        tracing::trace!("Shutting down orchestrator.");
-    }
-}
-
-/// Message sent from the orchestrator to the main loop.
-#[derive(Debug)]
-enum MainLoopMessage {
-    CheckProgram { revision: usize },
-    CheckCompleted(Vec<String>),
-    ApplyChanges(Vec<FileWatcherChange>),
-    Exit,
-}
-
-#[derive(Debug)]
-enum OrchestratorMessage {
-    Run,
-    Shutdown,
-
-    CheckProgramCompleted {
-        diagnostics: Vec<String>,
-        revision: usize,
-    },
-
-    FileChanges(Vec<FileWatcherChange>),
-}
-
-fn setup_tracing() {
-    let subscriber = Registry::default().with(
-        tracing_tree::HierarchicalLayer::default()
-            .with_indent_lines(true)
-            .with_indent_amount(2)
-            .with_bracketed_fields(true)
-            .with_thread_ids(true)
-            .with_targets(true)
-            .with_writer(|| Box::new(std::io::stderr()))
-            .with_timer(Uptime::default())
-            .with_filter(LoggingFilter {
-                trace_level: Level::TRACE,
-            }),
-    );
-
-    tracing::subscriber::set_global_default(subscriber).unwrap();
-}
-
-struct LoggingFilter {
-    trace_level: Level,
-}
-
-impl LoggingFilter {
-    fn is_enabled(&self, meta: &Metadata<'_>) -> bool {
-        let filter = if meta.target().starts_with("red_knot") || meta.target().starts_with("ruff") {
-            self.trace_level
-        } else {
-            Level::INFO
-        };
-
-        meta.level() <= &filter
-    }
-}
-
-impl<S> Filter<S> for LoggingFilter {
-    fn enabled(&self, meta: &Metadata<'_>, _cx: &Context<'_, S>) -> bool {
-        self.is_enabled(meta)
-    }
-
-    fn callsite_enabled(&self, meta: &'static Metadata<'static>) -> Interest {
-        if self.is_enabled(meta) {
-            Interest::always()
-        } else {
-            Interest::never()
-        }
-    }
-
-    fn max_level_hint(&self) -> Option<LevelFilter> {
-        Some(LevelFilter::from_level(self.trace_level))
-    }
-}

crates/red_knot/src/parse.rs

@@ -1,93 +0,0 @@
-use std::ops::{Deref, DerefMut};
-use std::sync::Arc;
-
-use ruff_python_ast as ast;
-use ruff_python_parser::{Mode, ParseError};
-use ruff_text_size::{Ranged, TextRange};
-
-use crate::cache::KeyValueCache;
-use crate::db::{QueryResult, SourceDb};
-use crate::files::FileId;
-use crate::source::source_text;
-
-#[derive(Debug, Clone, PartialEq)]
-pub struct Parsed {
-    inner: Arc<ParsedInner>,
-}
-
-#[derive(Debug, PartialEq)]
-struct ParsedInner {
-    ast: ast::ModModule,
-    errors: Vec<ParseError>,
-}
-
-impl Parsed {
-    fn new(ast: ast::ModModule, errors: Vec<ParseError>) -> Self {
-        Self {
-            inner: Arc::new(ParsedInner { ast, errors }),
-        }
-    }
-
-    pub(crate) fn from_text(text: &str) -> Self {
-        let result = ruff_python_parser::parse(text, Mode::Module);
-
-        let (module, errors) = match result {
-            Ok(ast::Mod::Module(module)) => (module, vec![]),
-            Ok(ast::Mod::Expression(expression)) => (
-                ast::ModModule {
-                    range: expression.range(),
-                    body: vec![ast::Stmt::Expr(ast::StmtExpr {
-                        range: expression.range(),
-                        value: expression.body,
-                    })],
-                },
-                vec![],
-            ),
-            Err(errors) => (
-                ast::ModModule {
-                    range: TextRange::default(),
-                    body: Vec::new(),
-                },
-                vec![errors],
-            ),
-        };
-
-        Parsed::new(module, errors)
-    }
-
-    pub fn ast(&self) -> &ast::ModModule {
-        &self.inner.ast
-    }
-
-    pub fn errors(&self) -> &[ParseError] {
-        &self.inner.errors
-    }
-}
-
-#[tracing::instrument(level = "debug", skip(db))]
-pub(crate) fn parse(db: &dyn SourceDb, file_id: FileId) -> QueryResult<Parsed> {
-    let jar = db.jar()?;
-
-    jar.parsed.get(&file_id, |file_id| {
-        let source = source_text(db, *file_id)?;
-
-        Ok(Parsed::from_text(source.text()))
-    })
-}
-
-#[derive(Debug, Default)]
-pub struct ParsedStorage(KeyValueCache<FileId, Parsed>);
-
-impl Deref for ParsedStorage {
-    type Target = KeyValueCache<FileId, Parsed>;
-
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl DerefMut for ParsedStorage {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.0
-    }
-}

crates/red_knot/src/program/check.rs

@@ -1,413 +0,0 @@
-use rayon::{current_num_threads, yield_local};
-use rustc_hash::FxHashSet;
-
-use crate::db::{Database, QueryError, QueryResult};
-use crate::files::FileId;
-use crate::lint::{lint_semantic, lint_syntax, Diagnostics};
-use crate::module::{file_to_module, resolve_module};
-use crate::program::Program;
-use crate::symbols::{symbol_table, Dependency};
-
-impl Program {
-    /// Checks all open files in the workspace and its dependencies.
-    #[tracing::instrument(level = "debug", skip_all)]
-    pub fn check(&self, mode: ExecutionMode) -> QueryResult<Vec<String>> {
-        self.cancelled()?;
-
-        let mut context = CheckContext::new(self);
-
-        match mode {
-            ExecutionMode::SingleThreaded => SingleThreadedExecutor.run(&mut context)?,
-            ExecutionMode::ThreadPool => ThreadPoolExecutor.run(&mut context)?,
-        };
-
-        Ok(context.finish())
-    }
-
-    #[tracing::instrument(level = "debug", skip(self, context))]
-    fn check_file(&self, file: FileId, context: &CheckFileContext) -> QueryResult<Diagnostics> {
-        self.cancelled()?;
-
-        let symbol_table = symbol_table(self, file)?;
-        let dependencies = symbol_table.dependencies();
-
-        if !dependencies.is_empty() {
-            let module = file_to_module(self, file)?;
-
-            // TODO scheduling all dependencies here is wasteful if we don't infer any types on them
-            //  but I think that's unlikely, so it is okay?
-            //  Anyway, we need to figure out a way to retrieve the dependencies of a module
-            //  from the persistent cache. So maybe it should be a separate query after all.
-            for dependency in dependencies {
-                let dependency_name = match dependency {
-                    Dependency::Module(name) => Some(name.clone()),
-                    Dependency::Relative { .. } => match &module {
-                        Some(module) => module.resolve_dependency(self, dependency)?,
-                        None => None,
-                    },
-                };
-
-                if let Some(dependency_name) = dependency_name {
-                    // TODO We may want to have a different check functions for non-first-party
-                    //   files because we only need to index them and not check them.
-                    //   Supporting non-first-party code also requires supporting typing stubs.
-                    if let Some(dependency) = resolve_module(self, dependency_name)? {
-                        if dependency.path(self)?.root().kind().is_first_party() {
-                            context.schedule_dependency(dependency.path(self)?.file());
-                        }
-                    }
-                }
-            }
-        }
-
-        let mut diagnostics = Vec::new();
-
-        if self.workspace().is_file_open(file) {
-            diagnostics.extend_from_slice(&lint_syntax(self, file)?);
-            diagnostics.extend_from_slice(&lint_semantic(self, file)?);
-        }
-
-        Ok(Diagnostics::from(diagnostics))
-    }
-}
-
-#[derive(Copy, Clone, Debug, PartialEq, Eq)]
-pub enum ExecutionMode {
-    SingleThreaded,
-    ThreadPool,
-}
-
-/// Context that stores state information about the entire check operation.
-struct CheckContext<'a> {
-    /// IDs of the files that have been queued for checking.
-    ///
-    /// Used to avoid queuing the same file twice.
-    scheduled_files: FxHashSet<FileId>,
-
-    /// Reference to the program that is checked.
-    program: &'a Program,
-
-    /// The aggregated diagnostics
-    diagnostics: Vec<String>,
-}
-
-impl<'a> CheckContext<'a> {
-    fn new(program: &'a Program) -> Self {
-        Self {
-            scheduled_files: FxHashSet::default(),
-            program,
-            diagnostics: Vec::new(),
-        }
-    }
-
-    /// Returns the tasks to check all open files in the workspace.
-    fn check_open_files(&mut self) -> Vec<CheckOpenFileTask> {
-        self.scheduled_files
-            .extend(self.program.workspace().open_files());
-
-        self.program
-            .workspace()
-            .open_files()
-            .map(|file_id| CheckOpenFileTask { file_id })
-            .collect()
-    }
-
-    /// Returns the task to check a dependency.
-    fn check_dependency(&mut self, file_id: FileId) -> Option<CheckDependencyTask> {
-        if self.scheduled_files.insert(file_id) {
-            Some(CheckDependencyTask { file_id })
-        } else {
-            None
-        }
-    }
-
-    /// Pushes the result for a single file check operation
-    fn push_diagnostics(&mut self, diagnostics: &Diagnostics) {
-        self.diagnostics.extend_from_slice(diagnostics);
-    }
-
-    /// Returns a reference to the program that is being checked.
-    fn program(&self) -> &'a Program {
-        self.program
-    }
-
-    /// Creates a task context that is used to check a single file.
-    fn task_context<'b, S>(&self, dependency_scheduler: &'b S) -> CheckTaskContext<'a, 'b, S>
-    where
-        S: ScheduleDependency,
-    {
-        CheckTaskContext {
-            program: self.program,
-            dependency_scheduler,
-        }
-    }
-
-    fn finish(self) -> Vec<String> {
-        self.diagnostics
-    }
-}
-
-/// Trait that abstracts away how a dependency of a file gets scheduled for checking.
-trait ScheduleDependency {
-    /// Schedules the file with the given ID for checking.
-    fn schedule(&self, file_id: FileId);
-}
-
-impl<T> ScheduleDependency for T
-where
-    T: Fn(FileId),
-{
-    fn schedule(&self, file_id: FileId) {
-        let f = self;
-        f(file_id);
-    }
-}
-
-/// Context that is used to run a single file check task.
-///
-/// The task is generic over `S` because it is passed across thread boundaries and
-/// we don't want to add the requirement that [`ScheduleDependency`] must be [`Send`].
-struct CheckTaskContext<'a, 'scheduler, S>
-where
-    S: ScheduleDependency,
-{
-    dependency_scheduler: &'scheduler S,
-    program: &'a Program,
-}
-
-impl<'a, 'scheduler, S> CheckTaskContext<'a, 'scheduler, S>
-where
-    S: ScheduleDependency,
-{
-    fn as_file_context(&self) -> CheckFileContext<'scheduler> {
-        CheckFileContext {
-            dependency_scheduler: self.dependency_scheduler,
-        }
-    }
-}
-
-/// Context passed when checking a single file.
-///
-/// This is a trimmed down version of [`CheckTaskContext`] with the type parameter `S` erased
-/// to avoid monomorphization of [`Program:check_file`].
-struct CheckFileContext<'a> {
-    dependency_scheduler: &'a dyn ScheduleDependency,
-}
-
-impl<'a> CheckFileContext<'a> {
-    fn schedule_dependency(&self, file_id: FileId) {
-        self.dependency_scheduler.schedule(file_id);
-    }
-}
-
-#[derive(Debug)]
-enum CheckFileTask {
-    OpenFile(CheckOpenFileTask),
-    Dependency(CheckDependencyTask),
-}
-
-impl CheckFileTask {
-    /// Runs the task and returns the results for checking this file.
-    fn run<S>(&self, context: &CheckTaskContext<S>) -> QueryResult<Diagnostics>
-    where
-        S: ScheduleDependency,
-    {
-        match self {
-            Self::OpenFile(task) => task.run(context),
-            Self::Dependency(task) => task.run(context),
-        }
-    }
-
-    fn file_id(&self) -> FileId {
-        match self {
-            CheckFileTask::OpenFile(task) => task.file_id,
-            CheckFileTask::Dependency(task) => task.file_id,
-        }
-    }
-}
-
-/// Task to check an open file.
-
-#[derive(Debug)]
-struct CheckOpenFileTask {
-    file_id: FileId,
-}
-
-impl CheckOpenFileTask {
-    fn run<S>(&self, context: &CheckTaskContext<S>) -> QueryResult<Diagnostics>
-    where
-        S: ScheduleDependency,
-    {
-        context
-            .program
-            .check_file(self.file_id, &context.as_file_context())
-    }
-}
-
-/// Task to check a dependency file.
-#[derive(Debug)]
-struct CheckDependencyTask {
-    file_id: FileId,
-}
-
-impl CheckDependencyTask {
-    fn run<S>(&self, context: &CheckTaskContext<S>) -> QueryResult<Diagnostics>
-    where
-        S: ScheduleDependency,
-    {
-        context
-            .program
-            .check_file(self.file_id, &context.as_file_context())
-    }
-}
-
-/// Executor that schedules the checking of individual program files.
-trait CheckExecutor {
-    fn run(self, context: &mut CheckContext) -> QueryResult<()>;
-}
-
-/// Executor that runs all check operations on the current thread.
-///
-/// The executor does not schedule dependencies for checking.
-/// The main motivation for scheduling dependencies
-/// in a multithreaded environment is to parse and index the dependencies concurrently.
-/// However, that doesn't make sense in a single threaded environment, because the dependencies then compute
-/// with checking the open files. Checking dependencies in a single threaded environment is more likely
-/// to hurt performance because we end up analyzing files in their entirety, even if we only need to type check parts of them.
-#[derive(Debug, Default)]
-struct SingleThreadedExecutor;
-
-impl CheckExecutor for SingleThreadedExecutor {
-    fn run(self, context: &mut CheckContext) -> QueryResult<()> {
-        let mut queue = context.check_open_files();
-
-        let noop_schedule_dependency = |_| {};
-
-        while let Some(file) = queue.pop() {
-            context.program().cancelled()?;
-
-            let task_context = context.task_context(&noop_schedule_dependency);
-            context.push_diagnostics(&file.run(&task_context)?);
-        }
-
-        Ok(())
-    }
-}
-
-/// Executor that runs the check operations on a thread pool.
-///
-/// The executor runs each check operation as its own task using a thread pool.
-///
-/// Other than [`SingleThreadedExecutor`], this executor schedules dependencies for checking. It
-/// even schedules dependencies for checking when the thread pool size is 1 for a better debugging experience.
-#[derive(Debug, Default)]
-struct ThreadPoolExecutor;
-
-impl CheckExecutor for ThreadPoolExecutor {
-    fn run(self, context: &mut CheckContext) -> QueryResult<()> {
-        let num_threads = current_num_threads();
-        let single_threaded = num_threads == 1;
-        let span = tracing::trace_span!("ThreadPoolExecutor::run", num_threads);
-        let _ = span.enter();
-
-        let mut queue: Vec<_> = context
-            .check_open_files()
-            .into_iter()
-            .map(CheckFileTask::OpenFile)
-            .collect();
-
-        let (sender, receiver) = if single_threaded {
-            // Use an unbounded queue for single threaded execution to prevent deadlocks
-            // when a single file schedules multiple dependencies.
-            crossbeam::channel::unbounded()
-        } else {
-            // Use a bounded queue to apply backpressure when the orchestration thread isn't able to keep
-            // up processing messages from the worker threads.
-            crossbeam::channel::bounded(num_threads)
-        };
-
-        let schedule_sender = sender.clone();
-        let schedule_dependency = move |file_id| {
-            schedule_sender
-                .send(ThreadPoolMessage::ScheduleDependency(file_id))
-                .unwrap();
-        };
-
-        let result = rayon::in_place_scope(|scope| {
-            let mut pending = 0usize;
-
-            loop {
-                context.program().cancelled()?;
-
-                // 1. Try to get a queued message to ensure that we have always remaining space in the channel to prevent blocking the worker threads.
-                // 2. Try to process a queued file
-                // 3. If there's no queued file wait for the next incoming message.
-                // 4. Exit if there are no more messages and no senders.
-                let message = if let Ok(message) = receiver.try_recv() {
-                    message
-                } else if let Some(task) = queue.pop() {
-                    pending += 1;
-
-                    let task_context = context.task_context(&schedule_dependency);
-                    let sender = sender.clone();
-                    let task_span = tracing::trace_span!(
-                        parent: &span,
-                        "CheckFileTask::run",
-                        file_id = task.file_id().as_u32(),
-                    );
-
-                    scope.spawn(move |_| {
-                        task_span.in_scope(|| match task.run(&task_context) {
-                            Ok(result) => {
-                                sender.send(ThreadPoolMessage::Completed(result)).unwrap();
-                            }
-                            Err(err) => sender.send(ThreadPoolMessage::Errored(err)).unwrap(),
-                        });
-                    });
-
-                    // If this is a single threaded rayon thread pool, yield the current thread
-                    // or we never start processing the work items.
-                    if single_threaded {
-                        yield_local();
-                    }
-
-                    continue;
-                } else if let Ok(message) = receiver.recv() {
-                    message
-                } else {
-                    break;
-                };
-
-                match message {
-                    ThreadPoolMessage::ScheduleDependency(dependency) => {
-                        if let Some(task) = context.check_dependency(dependency) {
-                            queue.push(CheckFileTask::Dependency(task));
-                        }
-                    }
-                    ThreadPoolMessage::Completed(diagnostics) => {
-                        context.push_diagnostics(&diagnostics);
-                        pending -= 1;
-
-                        if pending == 0 && queue.is_empty() {
-                            break;
-                        }
-                    }
-                    ThreadPoolMessage::Errored(err) => {
-                        return Err(err);
-                    }
-                }
-            }
-
-            Ok(())
-        });
-
-        result
-    }
-}
-
-#[derive(Debug)]
-enum ThreadPoolMessage {
-    ScheduleDependency(FileId),
-    Completed(Diagnostics),
-    Errored(QueryError),
-}

crates/red_knot/src/program/mod.rs

@@ -1,275 +0,0 @@
-use std::collections::hash_map::Entry;
-use std::path::{Path, PathBuf};
-use std::sync::Arc;
-
-use rustc_hash::FxHashMap;
-
-use crate::db::{
-    Database, Db, DbRuntime, DbWithJar, HasJar, HasJars, JarsStorage, LintDb, LintJar,
-    ParallelDatabase, QueryResult, SemanticDb, SemanticJar, Snapshot, SourceDb, SourceJar, Upcast,
-};
-use crate::files::{FileId, Files};
-use crate::Workspace;
-
-pub mod check;
-
-#[derive(Debug)]
-pub struct Program {
-    jars: JarsStorage<Program>,
-    files: Files,
-    workspace: Workspace,
-}
-
-impl Program {
-    pub fn new(workspace: Workspace) -> Self {
-        Self {
-            jars: JarsStorage::default(),
-            files: Files::default(),
-            workspace,
-        }
-    }
-
-    pub fn apply_changes<I>(&mut self, changes: I)
-    where
-        I: IntoIterator<Item = FileWatcherChange>,
-    {
-        let mut aggregated_changes = AggregatedChanges::default();
-
-        aggregated_changes.extend(changes.into_iter().map(|change| FileChange {
-            id: self.files.intern(&change.path),
-            kind: change.kind,
-        }));
-
-        let (source, semantic, lint) = self.jars_mut();
-        for change in aggregated_changes.iter() {
-            semantic.module_resolver.remove_module(change.id);
-            semantic.symbol_tables.remove(&change.id);
-            source.sources.remove(&change.id);
-            source.parsed.remove(&change.id);
-            // TODO: remove all dependent modules as well
-            semantic.type_store.remove_module(change.id);
-            lint.lint_syntax.remove(&change.id);
-            lint.lint_semantic.remove(&change.id);
-        }
-    }
-
-    pub fn files(&self) -> &Files {
-        &self.files
-    }
-
-    pub fn workspace(&self) -> &Workspace {
-        &self.workspace
-    }
-
-    pub fn workspace_mut(&mut self) -> &mut Workspace {
-        &mut self.workspace
-    }
-}
-
-impl SourceDb for Program {
-    fn file_id(&self, path: &Path) -> FileId {
-        self.files.intern(path)
-    }
-
-    fn file_path(&self, file_id: FileId) -> Arc<Path> {
-        self.files.path(file_id)
-    }
-}
-
-impl DbWithJar<SourceJar> for Program {}
-
-impl SemanticDb for Program {}
-
-impl DbWithJar<SemanticJar> for Program {}
-
-impl LintDb for Program {}
-
-impl DbWithJar<LintJar> for Program {}
-
-impl Upcast<dyn SemanticDb> for Program {
-    fn upcast(&self) -> &(dyn SemanticDb + 'static) {
-        self
-    }
-}
-
-impl Upcast<dyn SourceDb> for Program {
-    fn upcast(&self) -> &(dyn SourceDb + 'static) {
-        self
-    }
-}
-
-impl Upcast<dyn LintDb> for Program {
-    fn upcast(&self) -> &(dyn LintDb + 'static) {
-        self
-    }
-}
-
-impl Db for Program {}
-
-impl Database for Program {
-    fn runtime(&self) -> &DbRuntime {
-        self.jars.runtime()
-    }
-
-    fn runtime_mut(&mut self) -> &mut DbRuntime {
-        self.jars.runtime_mut()
-    }
-}
-
-impl ParallelDatabase for Program {
-    fn snapshot(&self) -> Snapshot<Self> {
-        Snapshot::new(Self {
-            jars: self.jars.snapshot(),
-            files: self.files.snapshot(),
-            workspace: self.workspace.clone(),
-        })
-    }
-}
-
-impl HasJars for Program {
-    type Jars = (SourceJar, SemanticJar, LintJar);
-
-    fn jars(&self) -> QueryResult<&Self::Jars> {
-        self.jars.jars()
-    }
-
-    fn jars_mut(&mut self) -> &mut Self::Jars {
-        self.jars.jars_mut()
-    }
-}
-
-impl HasJar<SourceJar> for Program {
-    fn jar(&self) -> QueryResult<&SourceJar> {
-        Ok(&self.jars()?.0)
-    }
-
-    fn jar_mut(&mut self) -> &mut SourceJar {
-        &mut self.jars_mut().0
-    }
-}
-
-impl HasJar<SemanticJar> for Program {
-    fn jar(&self) -> QueryResult<&SemanticJar> {
-        Ok(&self.jars()?.1)
-    }
-
-    fn jar_mut(&mut self) -> &mut SemanticJar {
-        &mut self.jars_mut().1
-    }
-}
-
-impl HasJar<LintJar> for Program {
-    fn jar(&self) -> QueryResult<&LintJar> {
-        Ok(&self.jars()?.2)
-    }
-
-    fn jar_mut(&mut self) -> &mut LintJar {
-        &mut self.jars_mut().2
-    }
-}
-
-#[derive(Clone, Debug)]
-pub struct FileWatcherChange {
-    path: PathBuf,
-    kind: FileChangeKind,
-}
-
-impl FileWatcherChange {
-    pub fn new(path: PathBuf, kind: FileChangeKind) -> Self {
-        Self { path, kind }
-    }
-}
-
-#[derive(Copy, Clone, Debug)]
-struct FileChange {
-    id: FileId,
-    kind: FileChangeKind,
-}
-
-impl FileChange {
-    fn file_id(self) -> FileId {
-        self.id
-    }
-
-    fn kind(self) -> FileChangeKind {
-        self.kind
-    }
-}
-
-#[derive(Copy, Clone, Debug, Eq, PartialEq)]
-pub enum FileChangeKind {
-    Created,
-    Modified,
-    Deleted,
-}
-
-#[derive(Default, Debug)]
-struct AggregatedChanges {
-    changes: FxHashMap<FileId, FileChangeKind>,
-}
-
-impl AggregatedChanges {
-    fn add(&mut self, change: FileChange) {
-        match self.changes.entry(change.file_id()) {
-            Entry::Occupied(mut entry) => {
-                let merged = entry.get_mut();
-
-                match (merged, change.kind()) {
-                    (FileChangeKind::Created, FileChangeKind::Deleted) => {
-                        // Deletion after creations means that ruff never saw the file.
-                        entry.remove();
-                    }
-                    (FileChangeKind::Created, FileChangeKind::Modified) => {
-                        // No-op, for ruff, modifying a file that it doesn't yet know that it exists is still considered a creation.
-                    }
-
-                    (FileChangeKind::Modified, FileChangeKind::Created) => {
-                        // Uhh, that should probably not happen. Continue considering it a modification.
-                    }
-
-                    (FileChangeKind::Modified, FileChangeKind::Deleted) => {
-                        *entry.get_mut() = FileChangeKind::Deleted;
-                    }
-
-                    (FileChangeKind::Deleted, FileChangeKind::Created) => {
-                        *entry.get_mut() = FileChangeKind::Modified;
-                    }
-
-                    (FileChangeKind::Deleted, FileChangeKind::Modified) => {
-                        // That's weird, but let's consider it a modification.
-                        *entry.get_mut() = FileChangeKind::Modified;
-                    }
-
-                    (FileChangeKind::Created, FileChangeKind::Created)
-                    | (FileChangeKind::Modified, FileChangeKind::Modified)
-                    | (FileChangeKind::Deleted, FileChangeKind::Deleted) => {
-                        // No-op transitions. Some of them should be impossible but we handle them anyway.
-                    }
-                }
-            }
-            Entry::Vacant(entry) => {
-                entry.insert(change.kind());
-            }
-        }
-    }
-
-    fn extend<I>(&mut self, changes: I)
-    where
-        I: IntoIterator<Item = FileChange>,
-    {
-        let iter = changes.into_iter();
-        let (lower, _) = iter.size_hint();
-        self.changes.reserve(lower);
-
-        for change in iter {
-            self.add(change);
-        }
-    }
-
-    fn iter(&self) -> impl Iterator<Item = FileChange> + '_ {
-        self.changes.iter().map(|(id, kind)| FileChange {
-            id: *id,
-            kind: *kind,
-        })
-    }
-}

crates/red_knot/src/source.rs

@@ -1,95 +0,0 @@
-use std::ops::{Deref, DerefMut};
-use std::sync::Arc;
-
-use ruff_notebook::Notebook;
-use ruff_python_ast::PySourceType;
-
-use crate::cache::KeyValueCache;
-use crate::db::{QueryResult, SourceDb};
-use crate::files::FileId;
-
-#[tracing::instrument(level = "debug", skip(db))]
-pub(crate) fn source_text(db: &dyn SourceDb, file_id: FileId) -> QueryResult<Source> {
-    let jar = db.jar()?;
-    let sources = &jar.sources;
-
-    sources.get(&file_id, |file_id| {
-        let path = db.file_path(*file_id);
-
-        let source_text = std::fs::read_to_string(&path).unwrap_or_else(|err| {
-            tracing::error!("Failed to read file '{path:?}: {err}'. Falling back to empty text");
-            String::new()
-        });
-
-        let python_ty = PySourceType::from(&path);
-
-        let kind = match python_ty {
-            PySourceType::Python => {
-                SourceKind::Python(Arc::from(source_text))
-            }
-            PySourceType::Stub => SourceKind::Stub(Arc::from(source_text)),
-            PySourceType::Ipynb => {
-                let notebook = Notebook::from_source_code(&source_text).unwrap_or_else(|err| {
-                    // TODO should this be changed to never fail?
-                    // or should we instead add a diagnostic somewhere? But what would we return in this case?
-                    tracing::error!(
-                        "Failed to parse notebook '{path:?}: {err}'. Falling back to an empty notebook"
-                    );
-                    Notebook::from_source_code("").unwrap()
-                });
-
-                SourceKind::IpyNotebook(Arc::new(notebook))
-            }
-        };
-
-        Ok(Source { kind })
-    })
-}
-
-#[derive(Debug, Clone, PartialEq)]
-pub enum SourceKind {
-    Python(Arc<str>),
-    Stub(Arc<str>),
-    IpyNotebook(Arc<Notebook>),
-}
-
-#[derive(Debug, Clone, PartialEq)]
-pub struct Source {
-    kind: SourceKind,
-}
-
-impl Source {
-    pub fn python<T: Into<Arc<str>>>(source: T) -> Self {
-        Self {
-            kind: SourceKind::Python(source.into()),
-        }
-    }
-    pub fn kind(&self) -> &SourceKind {
-        &self.kind
-    }
-
-    pub fn text(&self) -> &str {
-        match &self.kind {
-            SourceKind::Python(text) => text,
-            SourceKind::Stub(text) => text,
-            SourceKind::IpyNotebook(notebook) => notebook.source_code(),
-        }
-    }
-}
-
-#[derive(Debug, Default)]
-pub struct SourceStorage(pub(crate) KeyValueCache<FileId, Source>);
-
-impl Deref for SourceStorage {
-    type Target = KeyValueCache<FileId, Source>;
-
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl DerefMut for SourceStorage {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.0
-    }
-}

crates/red_knot/src/types.rs

@@ -1,745 +0,0 @@
-#![allow(dead_code)]
-use crate::ast_ids::NodeKey;
-use crate::db::{QueryResult, SemanticDb, SemanticJar};
-use crate::files::FileId;
-use crate::symbols::{symbol_table, GlobalSymbolId, ScopeId, ScopeKind, SymbolId};
-use crate::{FxDashMap, FxIndexSet, Name};
-use ruff_index::{newtype_index, IndexVec};
-use rustc_hash::FxHashMap;
-
-pub(crate) mod infer;
-
-pub(crate) use infer::{infer_definition_type, infer_symbol_type};
-
-/// unique ID for a type
-#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
-pub enum Type {
-    /// the dynamic or gradual type: a statically-unknown set of values
-    Any,
-    /// the empty set of values
-    Never,
-    /// unknown type (no annotation)
-    /// equivalent to Any, or to object in strict mode
-    Unknown,
-    /// name is not bound to any value
-    Unbound,
-    /// a specific function object
-    Function(FunctionTypeId),
-    /// a specific class object
-    Class(ClassTypeId),
-    /// the set of Python objects with the given class in their __class__'s method resolution order
-    Instance(ClassTypeId),
-    Union(UnionTypeId),
-    Intersection(IntersectionTypeId),
-    // TODO protocols, callable types, overloads, generics, type vars
-}
-
-impl Type {
-    fn display<'a>(&'a self, store: &'a TypeStore) -> DisplayType<'a> {
-        DisplayType { ty: self, store }
-    }
-
-    pub const fn is_unbound(&self) -> bool {
-        matches!(self, Type::Unbound)
-    }
-
-    pub const fn is_unknown(&self) -> bool {
-        matches!(self, Type::Unknown)
-    }
-}
-
-impl From<FunctionTypeId> for Type {
-    fn from(id: FunctionTypeId) -> Self {
-        Type::Function(id)
-    }
-}
-
-impl From<UnionTypeId> for Type {
-    fn from(id: UnionTypeId) -> Self {
-        Type::Union(id)
-    }
-}
-
-impl From<IntersectionTypeId> for Type {
-    fn from(id: IntersectionTypeId) -> Self {
-        Type::Intersection(id)
-    }
-}
-
-// TODO: currently calling `get_function` et al and holding on to the `FunctionTypeRef` will lock a
-// shard of this dashmap, for as long as you hold the reference. This may be a problem. We could
-// switch to having all the arenas hold Arc, or we could see if we can split up ModuleTypeStore,
-// and/or give it inner mutability and finer-grained internal locking.
-#[derive(Debug, Default)]
-pub struct TypeStore {
-    modules: FxDashMap<FileId, ModuleTypeStore>,
-}
-
-impl TypeStore {
-    pub fn remove_module(&mut self, file_id: FileId) {
-        self.modules.remove(&file_id);
-    }
-
-    pub fn cache_symbol_type(&self, symbol: GlobalSymbolId, ty: Type) {
-        self.add_or_get_module(symbol.file_id)
-            .symbol_types
-            .insert(symbol.symbol_id, ty);
-    }
-
-    pub fn cache_node_type(&self, file_id: FileId, node_key: NodeKey, ty: Type) {
-        self.add_or_get_module(file_id)
-            .node_types
-            .insert(node_key, ty);
-    }
-
-    pub fn get_cached_symbol_type(&self, symbol: GlobalSymbolId) -> Option<Type> {
-        self.try_get_module(symbol.file_id)?
-            .symbol_types
-            .get(&symbol.symbol_id)
-            .copied()
-    }
-
-    pub fn get_cached_node_type(&self, file_id: FileId, node_key: &NodeKey) -> Option<Type> {
-        self.try_get_module(file_id)?
-            .node_types
-            .get(node_key)
-            .copied()
-    }
-
-    fn add_or_get_module(&self, file_id: FileId) -> ModuleStoreRefMut {
-        self.modules
-            .entry(file_id)
-            .or_insert_with(|| ModuleTypeStore::new(file_id))
-    }
-
-    fn get_module(&self, file_id: FileId) -> ModuleStoreRef {
-        self.try_get_module(file_id).expect("module should exist")
-    }
-
-    fn try_get_module(&self, file_id: FileId) -> Option<ModuleStoreRef> {
-        self.modules.get(&file_id)
-    }
-
-    fn add_function(
-        &self,
-        file_id: FileId,
-        name: &str,
-        symbol_id: SymbolId,
-        scope_id: ScopeId,
-        decorators: Vec<Type>,
-    ) -> FunctionTypeId {
-        self.add_or_get_module(file_id)
-            .add_function(name, symbol_id, scope_id, decorators)
-    }
-
-    fn add_class(
-        &self,
-        file_id: FileId,
-        name: &str,
-        scope_id: ScopeId,
-        bases: Vec<Type>,
-    ) -> ClassTypeId {
-        self.add_or_get_module(file_id)
-            .add_class(name, scope_id, bases)
-    }
-
-    fn add_union(&mut self, file_id: FileId, elems: &[Type]) -> UnionTypeId {
-        self.add_or_get_module(file_id).add_union(elems)
-    }
-
-    fn add_intersection(
-        &mut self,
-        file_id: FileId,
-        positive: &[Type],
-        negative: &[Type],
-    ) -> IntersectionTypeId {
-        self.add_or_get_module(file_id)
-            .add_intersection(positive, negative)
-    }
-
-    fn get_function(&self, id: FunctionTypeId) -> FunctionTypeRef {
-        FunctionTypeRef {
-            module_store: self.get_module(id.file_id),
-            function_id: id.func_id,
-        }
-    }
-
-    fn get_class(&self, id: ClassTypeId) -> ClassTypeRef {
-        ClassTypeRef {
-            module_store: self.get_module(id.file_id),
-            class_id: id.class_id,
-        }
-    }
-
-    fn get_union(&self, id: UnionTypeId) -> UnionTypeRef {
-        UnionTypeRef {
-            module_store: self.get_module(id.file_id),
-            union_id: id.union_id,
-        }
-    }
-
-    fn get_intersection(&self, id: IntersectionTypeId) -> IntersectionTypeRef {
-        IntersectionTypeRef {
-            module_store: self.get_module(id.file_id),
-            intersection_id: id.intersection_id,
-        }
-    }
-}
-
-type ModuleStoreRef<'a> = dashmap::mapref::one::Ref<
-    'a,
-    FileId,
-    ModuleTypeStore,
-    std::hash::BuildHasherDefault<rustc_hash::FxHasher>,
->;
-
-type ModuleStoreRefMut<'a> = dashmap::mapref::one::RefMut<
-    'a,
-    FileId,
-    ModuleTypeStore,
-    std::hash::BuildHasherDefault<rustc_hash::FxHasher>,
->;
-
-#[derive(Debug)]
-pub(crate) struct FunctionTypeRef<'a> {
-    module_store: ModuleStoreRef<'a>,
-    function_id: ModuleFunctionTypeId,
-}
-
-impl<'a> std::ops::Deref for FunctionTypeRef<'a> {
-    type Target = FunctionType;
-
-    fn deref(&self) -> &Self::Target {
-        self.module_store.get_function(self.function_id)
-    }
-}
-
-#[derive(Debug)]
-pub(crate) struct ClassTypeRef<'a> {
-    module_store: ModuleStoreRef<'a>,
-    class_id: ModuleClassTypeId,
-}
-
-impl<'a> std::ops::Deref for ClassTypeRef<'a> {
-    type Target = ClassType;
-
-    fn deref(&self) -> &Self::Target {
-        self.module_store.get_class(self.class_id)
-    }
-}
-
-#[derive(Debug)]
-pub(crate) struct UnionTypeRef<'a> {
-    module_store: ModuleStoreRef<'a>,
-    union_id: ModuleUnionTypeId,
-}
-
-impl<'a> std::ops::Deref for UnionTypeRef<'a> {
-    type Target = UnionType;
-
-    fn deref(&self) -> &Self::Target {
-        self.module_store.get_union(self.union_id)
-    }
-}
-
-#[derive(Debug)]
-pub(crate) struct IntersectionTypeRef<'a> {
-    module_store: ModuleStoreRef<'a>,
-    intersection_id: ModuleIntersectionTypeId,
-}
-
-impl<'a> std::ops::Deref for IntersectionTypeRef<'a> {
-    type Target = IntersectionType;
-
-    fn deref(&self) -> &Self::Target {
-        self.module_store.get_intersection(self.intersection_id)
-    }
-}
-
-#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)]
-pub struct FunctionTypeId {
-    file_id: FileId,
-    func_id: ModuleFunctionTypeId,
-}
-
-impl FunctionTypeId {
-    fn function(self, db: &dyn SemanticDb) -> QueryResult<FunctionTypeRef> {
-        let jar: &SemanticJar = db.jar()?;
-        Ok(jar.type_store.get_function(self))
-    }
-
-    pub(crate) fn name(self, db: &dyn SemanticDb) -> QueryResult<Name> {
-        Ok(self.function(db)?.name().into())
-    }
-
-    pub(crate) fn global_symbol(self, db: &dyn SemanticDb) -> QueryResult<GlobalSymbolId> {
-        Ok(GlobalSymbolId {
-            file_id: self.file(),
-            symbol_id: self.symbol(db)?,
-        })
-    }
-
-    pub(crate) fn file(self) -> FileId {
-        self.file_id
-    }
-
-    pub(crate) fn symbol(self, db: &dyn SemanticDb) -> QueryResult<SymbolId> {
-        let FunctionType { symbol_id, .. } = *self.function(db)?;
-        Ok(symbol_id)
-    }
-
-    pub(crate) fn get_containing_class(
-        self,
-        db: &dyn SemanticDb,
-    ) -> QueryResult<Option<ClassTypeId>> {
-        let table = symbol_table(db, self.file_id)?;
-        let FunctionType { symbol_id, .. } = *self.function(db)?;
-        let scope_id = symbol_id.symbol(&table).scope_id();
-        let scope = scope_id.scope(&table);
-        if !matches!(scope.kind(), ScopeKind::Class) {
-            return Ok(None);
-        };
-        let Some(def) = scope.definition() else {
-            return Ok(None);
-        };
-        let Some(symbol_id) = scope.defining_symbol() else {
-            return Ok(None);
-        };
-        let Type::Class(class) = infer_definition_type(
-            db,
-            GlobalSymbolId {
-                file_id: self.file_id,
-                symbol_id,
-            },
-            def,
-        )?
-        else {
-            return Ok(None);
-        };
-        Ok(Some(class))
-    }
-
-    pub(crate) fn has_decorator(
-        self,
-        db: &dyn SemanticDb,
-        decorator_symbol: GlobalSymbolId,
-    ) -> QueryResult<bool> {
-        for deco_ty in self.function(db)?.decorators() {
-            let Type::Function(deco_func) = deco_ty else {
-                continue;
-            };
-            if deco_func.global_symbol(db)? == decorator_symbol {
-                return Ok(true);
-            }
-        }
-        Ok(false)
-    }
-}
-
-#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)]
-pub struct ClassTypeId {
-    file_id: FileId,
-    class_id: ModuleClassTypeId,
-}
-
-impl ClassTypeId {
-    fn class(self, db: &dyn SemanticDb) -> QueryResult<ClassTypeRef> {
-        let jar: &SemanticJar = db.jar()?;
-        Ok(jar.type_store.get_class(self))
-    }
-
-    pub(crate) fn name(self, db: &dyn SemanticDb) -> QueryResult<Name> {
-        Ok(self.class(db)?.name().into())
-    }
-
-    pub(crate) fn get_super_class_member(
-        self,
-        db: &dyn SemanticDb,
-        name: &Name,
-    ) -> QueryResult<Option<Type>> {
-        // TODO we should linearize the MRO instead of doing this recursively
-        let class = self.class(db)?;
-        for base in class.bases() {
-            if let Type::Class(base) = base {
-                if let Some(own_member) = base.get_own_class_member(db, name)? {
-                    return Ok(Some(own_member));
-                }
-                if let Some(base_member) = base.get_super_class_member(db, name)? {
-                    return Ok(Some(base_member));
-                }
-            }
-        }
-        Ok(None)
-    }
-
-    fn get_own_class_member(self, db: &dyn SemanticDb, name: &Name) -> QueryResult<Option<Type>> {
-        // TODO: this should distinguish instance-only members (e.g. `x: int`) and not return them
-        let ClassType { scope_id, .. } = *self.class(db)?;
-        let table = symbol_table(db, self.file_id)?;
-        if let Some(symbol_id) = table.symbol_id_by_name(scope_id, name) {
-            Ok(Some(infer_symbol_type(
-                db,
-                GlobalSymbolId {
-                    file_id: self.file_id,
-                    symbol_id,
-                },
-            )?))
-        } else {
-            Ok(None)
-        }
-    }
-
-    // TODO: get_own_instance_member, get_class_member, get_instance_member
-}
-
-#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)]
-pub struct UnionTypeId {
-    file_id: FileId,
-    union_id: ModuleUnionTypeId,
-}
-
-#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)]
-pub struct IntersectionTypeId {
-    file_id: FileId,
-    intersection_id: ModuleIntersectionTypeId,
-}
-
-#[newtype_index]
-struct ModuleFunctionTypeId;
-
-#[newtype_index]
-struct ModuleClassTypeId;
-
-#[newtype_index]
-struct ModuleUnionTypeId;
-
-#[newtype_index]
-struct ModuleIntersectionTypeId;
-
-#[derive(Debug)]
-struct ModuleTypeStore {
-    file_id: FileId,
-    /// arena of all function types defined in this module
-    functions: IndexVec<ModuleFunctionTypeId, FunctionType>,
-    /// arena of all class types defined in this module
-    classes: IndexVec<ModuleClassTypeId, ClassType>,
-    /// arenda of all union types created in this module
-    unions: IndexVec<ModuleUnionTypeId, UnionType>,
-    /// arena of all intersection types created in this module
-    intersections: IndexVec<ModuleIntersectionTypeId, IntersectionType>,
-    /// cached types of symbols in this module
-    symbol_types: FxHashMap<SymbolId, Type>,
-    /// cached types of AST nodes in this module
-    node_types: FxHashMap<NodeKey, Type>,
-}
-
-impl ModuleTypeStore {
-    fn new(file_id: FileId) -> Self {
-        Self {
-            file_id,
-            functions: IndexVec::default(),
-            classes: IndexVec::default(),
-            unions: IndexVec::default(),
-            intersections: IndexVec::default(),
-            symbol_types: FxHashMap::default(),
-            node_types: FxHashMap::default(),
-        }
-    }
-
-    fn add_function(
-        &mut self,
-        name: &str,
-        symbol_id: SymbolId,
-        scope_id: ScopeId,
-        decorators: Vec<Type>,
-    ) -> FunctionTypeId {
-        let func_id = self.functions.push(FunctionType {
-            name: Name::new(name),
-            symbol_id,
-            scope_id,
-            decorators,
-        });
-        FunctionTypeId {
-            file_id: self.file_id,
-            func_id,
-        }
-    }
-
-    fn add_class(&mut self, name: &str, scope_id: ScopeId, bases: Vec<Type>) -> ClassTypeId {
-        let class_id = self.classes.push(ClassType {
-            name: Name::new(name),
-            scope_id,
-            // TODO: if no bases are given, that should imply [object]
-            bases,
-        });
-        ClassTypeId {
-            file_id: self.file_id,
-            class_id,
-        }
-    }
-
-    fn add_union(&mut self, elems: &[Type]) -> UnionTypeId {
-        let union_id = self.unions.push(UnionType {
-            elements: elems.iter().copied().collect(),
-        });
-        UnionTypeId {
-            file_id: self.file_id,
-            union_id,
-        }
-    }
-
-    fn add_intersection(&mut self, positive: &[Type], negative: &[Type]) -> IntersectionTypeId {
-        let intersection_id = self.intersections.push(IntersectionType {
-            positive: positive.iter().copied().collect(),
-            negative: negative.iter().copied().collect(),
-        });
-        IntersectionTypeId {
-            file_id: self.file_id,
-            intersection_id,
-        }
-    }
-
-    fn get_function(&self, func_id: ModuleFunctionTypeId) -> &FunctionType {
-        &self.functions[func_id]
-    }
-
-    fn get_class(&self, class_id: ModuleClassTypeId) -> &ClassType {
-        &self.classes[class_id]
-    }
-
-    fn get_union(&self, union_id: ModuleUnionTypeId) -> &UnionType {
-        &self.unions[union_id]
-    }
-
-    fn get_intersection(&self, intersection_id: ModuleIntersectionTypeId) -> &IntersectionType {
-        &self.intersections[intersection_id]
-    }
-}
-
-#[derive(Copy, Clone, Debug)]
-struct DisplayType<'a> {
-    ty: &'a Type,
-    store: &'a TypeStore,
-}
-
-impl std::fmt::Display for DisplayType<'_> {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        match self.ty {
-            Type::Any => f.write_str("Any"),
-            Type::Never => f.write_str("Never"),
-            Type::Unknown => f.write_str("Unknown"),
-            Type::Unbound => f.write_str("Unbound"),
-            // TODO functions and classes should display using a fully qualified name
-            Type::Class(class_id) => {
-                f.write_str("Literal[")?;
-                f.write_str(self.store.get_class(*class_id).name())?;
-                f.write_str("]")
-            }
-            Type::Instance(class_id) => f.write_str(self.store.get_class(*class_id).name()),
-            Type::Function(func_id) => f.write_str(self.store.get_function(*func_id).name()),
-            Type::Union(union_id) => self
-                .store
-                .get_module(union_id.file_id)
-                .get_union(union_id.union_id)
-                .display(f, self.store),
-            Type::Intersection(int_id) => self
-                .store
-                .get_module(int_id.file_id)
-                .get_intersection(int_id.intersection_id)
-                .display(f, self.store),
-        }
-    }
-}
-
-#[derive(Debug)]
-pub(crate) struct ClassType {
-    /// Name of the class at definition
-    name: Name,
-    /// `ScopeId` of the class body
-    scope_id: ScopeId,
-    /// Types of all class bases
-    bases: Vec<Type>,
-}
-
-impl ClassType {
-    fn name(&self) -> &str {
-        self.name.as_str()
-    }
-
-    fn bases(&self) -> &[Type] {
-        self.bases.as_slice()
-    }
-}
-
-#[derive(Debug)]
-pub(crate) struct FunctionType {
-    /// name of the function at definition
-    name: Name,
-    /// symbol which this function is a definition of
-    symbol_id: SymbolId,
-    /// scope of this function's body
-    scope_id: ScopeId,
-    /// types of all decorators on this function
-    decorators: Vec<Type>,
-}
-
-impl FunctionType {
-    fn name(&self) -> &str {
-        self.name.as_str()
-    }
-
-    fn scope_id(&self) -> ScopeId {
-        self.scope_id
-    }
-
-    pub(crate) fn decorators(&self) -> &[Type] {
-        self.decorators.as_slice()
-    }
-}
-
-#[derive(Debug)]
-pub(crate) struct UnionType {
-    // the union type includes values in any of these types
-    elements: FxIndexSet<Type>,
-}
-
-impl UnionType {
-    fn display(&self, f: &mut std::fmt::Formatter<'_>, store: &TypeStore) -> std::fmt::Result {
-        f.write_str("(")?;
-        let mut first = true;
-        for ty in &self.elements {
-            if !first {
-                f.write_str(" | ")?;
-            };
-            first = false;
-            write!(f, "{}", ty.display(store))?;
-        }
-        f.write_str(")")
-    }
-}
-
-// Negation types aren't expressible in annotations, and are most likely to arise from type
-// narrowing along with intersections (e.g. `if not isinstance(...)`), so we represent them
-// directly in intersections rather than as a separate type. This sacrifices some efficiency in the
-// case where a Not appears outside an intersection (unclear when that could even happen, but we'd
-// have to represent it as a single-element intersection if it did) in exchange for better
-// efficiency in the within-intersection case.
-#[derive(Debug)]
-pub(crate) struct IntersectionType {
-    // the intersection type includes only values in all of these types
-    positive: FxIndexSet<Type>,
-    // the intersection type does not include any value in any of these types
-    negative: FxIndexSet<Type>,
-}
-
-impl IntersectionType {
-    fn display(&self, f: &mut std::fmt::Formatter<'_>, store: &TypeStore) -> std::fmt::Result {
-        f.write_str("(")?;
-        let mut first = true;
-        for (neg, ty) in self
-            .positive
-            .iter()
-            .map(|ty| (false, ty))
-            .chain(self.negative.iter().map(|ty| (true, ty)))
-        {
-            if !first {
-                f.write_str(" & ")?;
-            };
-            first = false;
-            if neg {
-                f.write_str("~")?;
-            };
-            write!(f, "{}", ty.display(store))?;
-        }
-        f.write_str(")")
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use std::path::Path;
-
-    use crate::files::Files;
-    use crate::symbols::{SymbolFlags, SymbolTable};
-    use crate::types::{Type, TypeStore};
-    use crate::FxIndexSet;
-
-    #[test]
-    fn add_class() {
-        let store = TypeStore::default();
-        let files = Files::default();
-        let file_id = files.intern(Path::new("/foo"));
-        let id = store.add_class(file_id, "C", SymbolTable::root_scope_id(), Vec::new());
-        assert_eq!(store.get_class(id).name(), "C");
-        let inst = Type::Instance(id);
-        assert_eq!(format!("{}", inst.display(&store)), "C");
-    }
-
-    #[test]
-    fn add_function() {
-        let store = TypeStore::default();
-        let files = Files::default();
-        let file_id = files.intern(Path::new("/foo"));
-        let mut table = SymbolTable::new();
-        let func_symbol = table.add_or_update_symbol(
-            SymbolTable::root_scope_id(),
-            "func",
-            SymbolFlags::IS_DEFINED,
-        );
-
-        let id = store.add_function(
-            file_id,
-            "func",
-            func_symbol,
-            SymbolTable::root_scope_id(),
-            vec![Type::Unknown],
-        );
-        assert_eq!(store.get_function(id).name(), "func");
-        assert_eq!(store.get_function(id).decorators(), vec![Type::Unknown]);
-        let func = Type::Function(id);
-        assert_eq!(format!("{}", func.display(&store)), "func");
-    }
-
-    #[test]
-    fn add_union() {
-        let mut store = TypeStore::default();
-        let files = Files::default();
-        let file_id = files.intern(Path::new("/foo"));
-        let c1 = store.add_class(file_id, "C1", SymbolTable::root_scope_id(), Vec::new());
-        let c2 = store.add_class(file_id, "C2", SymbolTable::root_scope_id(), Vec::new());
-        let elems = vec![Type::Instance(c1), Type::Instance(c2)];
-        let id = store.add_union(file_id, &elems);
-        assert_eq!(
-            store.get_union(id).elements,
-            elems.into_iter().collect::<FxIndexSet<_>>()
-        );
-        let union = Type::Union(id);
-        assert_eq!(format!("{}", union.display(&store)), "(C1 | C2)");
-    }
-
-    #[test]
-    fn add_intersection() {
-        let mut store = TypeStore::default();
-        let files = Files::default();
-        let file_id = files.intern(Path::new("/foo"));
-        let c1 = store.add_class(file_id, "C1", SymbolTable::root_scope_id(), Vec::new());
-        let c2 = store.add_class(file_id, "C2", SymbolTable::root_scope_id(), Vec::new());
-        let c3 = store.add_class(file_id, "C3", SymbolTable::root_scope_id(), Vec::new());
-        let pos = vec![Type::Instance(c1), Type::Instance(c2)];
-        let neg = vec![Type::Instance(c3)];
-        let id = store.add_intersection(file_id, &pos, &neg);
-        assert_eq!(
-            store.get_intersection(id).positive,
-            pos.into_iter().collect::<FxIndexSet<_>>()
-        );
-        assert_eq!(
-            store.get_intersection(id).negative,
-            neg.into_iter().collect::<FxIndexSet<_>>()
-        );
-        let intersection = Type::Intersection(id);
-        assert_eq!(
-            format!("{}", intersection.display(&store)),
-            "(C1 & C2 & ~C3)"
-        );
-    }
-}

crates/red_knot/src/types/infer.rs

@@ -1,292 +0,0 @@
-#![allow(dead_code)]
-
-use ruff_python_ast as ast;
-use ruff_python_ast::AstNode;
-
-use crate::db::{QueryResult, SemanticDb, SemanticJar};
-
-use crate::module::ModuleName;
-use crate::parse::parse;
-use crate::symbols::{
-    resolve_global_symbol, symbol_table, Definition, GlobalSymbolId, ImportFromDefinition,
-};
-use crate::types::Type;
-use crate::FileId;
-
-// FIXME: Figure out proper dead-lock free synchronisation now that this takes `&db` instead of `&mut db`.
-#[tracing::instrument(level = "trace", skip(db))]
-pub fn infer_symbol_type(db: &dyn SemanticDb, symbol: GlobalSymbolId) -> QueryResult<Type> {
-    let symbols = symbol_table(db, symbol.file_id)?;
-    let defs = symbols.definitions(symbol.symbol_id);
-    let jar: &SemanticJar = db.jar()?;
-
-    if let Some(ty) = jar.type_store.get_cached_symbol_type(symbol) {
-        return Ok(ty);
-    }
-
-    // TODO handle multiple defs, conditional defs...
-    assert_eq!(defs.len(), 1);
-
-    let ty = infer_definition_type(db, symbol, defs[0].clone())?;
-
-    jar.type_store.cache_symbol_type(symbol, ty);
-
-    // TODO record dependencies
-    Ok(ty)
-}
-
-#[tracing::instrument(level = "trace", skip(db))]
-pub fn infer_definition_type(
-    db: &dyn SemanticDb,
-    symbol: GlobalSymbolId,
-    definition: Definition,
-) -> QueryResult<Type> {
-    let jar: &SemanticJar = db.jar()?;
-    let type_store = &jar.type_store;
-    let file_id = symbol.file_id;
-
-    match definition {
-        Definition::ImportFrom(ImportFromDefinition {
-            module,
-            name,
-            level,
-        }) => {
-            // TODO relative imports
-            assert!(matches!(level, 0));
-            let module_name = ModuleName::new(module.as_ref().expect("TODO relative imports"));
-            if let Some(remote_symbol) = resolve_global_symbol(db, module_name, &name)? {
-                infer_symbol_type(db, remote_symbol)
-            } else {
-                Ok(Type::Unknown)
-            }
-        }
-        Definition::ClassDef(node_key) => {
-            if let Some(ty) = type_store.get_cached_node_type(file_id, node_key.erased()) {
-                Ok(ty)
-            } else {
-                let parsed = parse(db.upcast(), file_id)?;
-                let ast = parsed.ast();
-                let table = symbol_table(db, file_id)?;
-                let node = node_key.resolve_unwrap(ast.as_any_node_ref());
-
-                let mut bases = Vec::with_capacity(node.bases().len());
-
-                for base in node.bases() {
-                    bases.push(infer_expr_type(db, file_id, base)?);
-                }
-                let scope_id = table.scope_id_for_node(node_key.erased());
-                let ty = Type::Class(type_store.add_class(file_id, &node.name.id, scope_id, bases));
-                type_store.cache_node_type(file_id, *node_key.erased(), ty);
-                Ok(ty)
-            }
-        }
-        Definition::FunctionDef(node_key) => {
-            if let Some(ty) = type_store.get_cached_node_type(file_id, node_key.erased()) {
-                Ok(ty)
-            } else {
-                let parsed = parse(db.upcast(), file_id)?;
-                let ast = parsed.ast();
-                let table = symbol_table(db, file_id)?;
-                let node = node_key
-                    .resolve(ast.as_any_node_ref())
-                    .expect("node key should resolve");
-
-                let decorator_tys = node
-                    .decorator_list
-                    .iter()
-                    .map(|decorator| infer_expr_type(db, file_id, &decorator.expression))
-                    .collect::<QueryResult<_>>()?;
-                let scope_id = table.scope_id_for_node(node_key.erased());
-                let ty = type_store
-                    .add_function(
-                        file_id,
-                        &node.name.id,
-                        symbol.symbol_id,
-                        scope_id,
-                        decorator_tys,
-                    )
-                    .into();
-                type_store.cache_node_type(file_id, *node_key.erased(), ty);
-                Ok(ty)
-            }
-        }
-        Definition::Assignment(node_key) => {
-            let parsed = parse(db.upcast(), file_id)?;
-            let ast = parsed.ast();
-            let node = node_key.resolve_unwrap(ast.as_any_node_ref());
-            // TODO handle unpacking assignment correctly
-            infer_expr_type(db, file_id, &node.value)
-        }
-        _ => todo!("other kinds of definitions"),
-    }
-}
-
-fn infer_expr_type(db: &dyn SemanticDb, file_id: FileId, expr: &ast::Expr) -> QueryResult<Type> {
-    // TODO cache the resolution of the type on the node
-    let symbols = symbol_table(db, file_id)?;
-    match expr {
-        ast::Expr::Name(name) => {
-            // TODO look up in the correct scope, don't assume global
-            if let Some(symbol_id) = symbols.root_symbol_id_by_name(&name.id) {
-                infer_symbol_type(db, GlobalSymbolId { file_id, symbol_id })
-            } else {
-                Ok(Type::Unknown)
-            }
-        }
-        _ => todo!("full expression type resolution"),
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use crate::db::tests::TestDb;
-    use crate::db::{HasJar, SemanticJar};
-    use crate::module::{
-        resolve_module, set_module_search_paths, ModuleName, ModuleSearchPath, ModuleSearchPathKind,
-    };
-    use crate::symbols::{symbol_table, GlobalSymbolId};
-    use crate::types::{infer_symbol_type, Type};
-    use crate::Name;
-
-    // TODO with virtual filesystem we shouldn't have to write files to disk for these
-    // tests
-
-    struct TestCase {
-        temp_dir: tempfile::TempDir,
-        db: TestDb,
-
-        src: ModuleSearchPath,
-    }
-
-    fn create_test() -> std::io::Result<TestCase> {
-        let temp_dir = tempfile::tempdir()?;
-
-        let src = temp_dir.path().join("src");
-        std::fs::create_dir(&src)?;
-        let src = ModuleSearchPath::new(src.canonicalize()?, ModuleSearchPathKind::FirstParty);
-
-        let roots = vec![src.clone()];
-
-        let mut db = TestDb::default();
-        set_module_search_paths(&mut db, roots);
-
-        Ok(TestCase { temp_dir, db, src })
-    }
-
-    #[test]
-    fn follow_import_to_class() -> anyhow::Result<()> {
-        let case = create_test()?;
-        let db = &case.db;
-
-        let a_path = case.src.path().join("a.py");
-        let b_path = case.src.path().join("b.py");
-        std::fs::write(a_path, "from b import C as D; E = D")?;
-        std::fs::write(b_path, "class C: pass")?;
-        let a_file = resolve_module(db, ModuleName::new("a"))?
-            .expect("module should be found")
-            .path(db)?
-            .file();
-        let a_syms = symbol_table(db, a_file)?;
-        let e_sym = a_syms
-            .root_symbol_id_by_name("E")
-            .expect("E symbol should be found");
-
-        let ty = infer_symbol_type(
-            db,
-            GlobalSymbolId {
-                file_id: a_file,
-                symbol_id: e_sym,
-            },
-        )?;
-
-        let jar = HasJar::<SemanticJar>::jar(db)?;
-        assert!(matches!(ty, Type::Class(_)));
-        assert_eq!(format!("{}", ty.display(&jar.type_store)), "Literal[C]");
-
-        Ok(())
-    }
-
-    #[test]
-    fn resolve_base_class_by_name() -> anyhow::Result<()> {
-        let case = create_test()?;
-        let db = &case.db;
-
-        let path = case.src.path().join("mod.py");
-        std::fs::write(path, "class Base: pass\nclass Sub(Base): pass")?;
-        let file = resolve_module(db, ModuleName::new("mod"))?
-            .expect("module should be found")
-            .path(db)?
-            .file();
-        let syms = symbol_table(db, file)?;
-        let sym = syms
-            .root_symbol_id_by_name("Sub")
-            .expect("Sub symbol should be found");
-
-        let ty = infer_symbol_type(
-            db,
-            GlobalSymbolId {
-                file_id: file,
-                symbol_id: sym,
-            },
-        )?;
-
-        let Type::Class(class_id) = ty else {
-            panic!("Sub is not a Class")
-        };
-        let jar = HasJar::<SemanticJar>::jar(db)?;
-        let base_names: Vec<_> = jar
-            .type_store
-            .get_class(class_id)
-            .bases()
-            .iter()
-            .map(|base_ty| format!("{}", base_ty.display(&jar.type_store)))
-            .collect();
-
-        assert_eq!(base_names, vec!["Literal[Base]"]);
-
-        Ok(())
-    }
-
-    #[test]
-    fn resolve_method() -> anyhow::Result<()> {
-        let case = create_test()?;
-        let db = &case.db;
-
-        let path = case.src.path().join("mod.py");
-        std::fs::write(path, "class C:\n  def f(self): pass")?;
-        let file = resolve_module(db, ModuleName::new("mod"))?
-            .expect("module should be found")
-            .path(db)?
-            .file();
-        let syms = symbol_table(db, file)?;
-        let sym = syms
-            .root_symbol_id_by_name("C")
-            .expect("C symbol should be found");
-
-        let ty = infer_symbol_type(
-            db,
-            GlobalSymbolId {
-                file_id: file,
-                symbol_id: sym,
-            },
-        )?;
-
-        let Type::Class(class_id) = ty else {
-            panic!("C is not a Class");
-        };
-
-        let member_ty = class_id
-            .get_own_class_member(db, &Name::new("f"))
-            .expect("C.f to resolve");
-
-        let Some(Type::Function(func_id)) = member_ty else {
-            panic!("C.f is not a Function");
-        };
-
-        let jar = HasJar::<SemanticJar>::jar(db)?;
-        let function = jar.type_store.get_function(func_id);
-        assert_eq!(function.name(), "f");
-
-        Ok(())
-    }
-}

crates/red_knot/src/watch.rs

@@ -1,77 +0,0 @@
-use std::path::Path;
-
-use anyhow::Context;
-use notify::event::{CreateKind, RemoveKind};
-use notify::{recommended_watcher, Event, EventKind, RecommendedWatcher, RecursiveMode, Watcher};
-
-use crate::program::{FileChangeKind, FileWatcherChange};
-
-pub struct FileWatcher {
-    watcher: RecommendedWatcher,
-}
-
-pub trait EventHandler: Send + 'static {
-    fn handle(&self, changes: Vec<FileWatcherChange>);
-}
-
-impl<F> EventHandler for F
-where
-    F: Fn(Vec<FileWatcherChange>) + Send + 'static,
-{
-    fn handle(&self, changes: Vec<FileWatcherChange>) {
-        let f = self;
-        f(changes);
-    }
-}
-
-impl FileWatcher {
-    pub fn new<E>(handler: E) -> anyhow::Result<Self>
-    where
-        E: EventHandler,
-    {
-        Self::from_handler(Box::new(handler))
-    }
-
-    fn from_handler(handler: Box<dyn EventHandler>) -> anyhow::Result<Self> {
-        let watcher = recommended_watcher(move |changes: notify::Result<Event>| {
-            match changes {
-                Ok(event) => {
-                    // TODO verify that this handles all events correctly
-                    let change_kind = match event.kind {
-                        EventKind::Create(CreateKind::File) => FileChangeKind::Created,
-                        EventKind::Modify(_) => FileChangeKind::Modified,
-                        EventKind::Remove(RemoveKind::File) => FileChangeKind::Deleted,
-                        _ => {
-                            return;
-                        }
-                    };
-
-                    let mut changes = Vec::new();
-
-                    for path in event.paths {
-                        if path.is_file() {
-                            changes.push(FileWatcherChange::new(path, change_kind));
-                        }
-                    }
-
-                    if !changes.is_empty() {
-                        handler.handle(changes);
-                    }
-                }
-                // TODO proper error handling
-                Err(err) => {
-                    panic!("Error: {err}");
-                }
-            }
-        })
-        .context("Failed to create file watcher.")?;
-
-        Ok(Self { watcher })
-    }
-
-    pub fn watch_folder(&mut self, path: &Path) -> anyhow::Result<()> {
-        self.watcher.watch(path, RecursiveMode::Recursive)?;
-
-        Ok(())
-    }
-}

crates/red_knot/vendor/typeshed/LICENSE

@@ -1,237 +0,0 @@
-The "typeshed" project is licensed under the terms of the Apache license, as
-reproduced below.
-
-= = = = =
-
-Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
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-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
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-      by You to the Licensor shall be under the terms and conditions of
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-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
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-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
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-      other commercial damages or losses), even if such Contributor
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-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "{}"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
-      identification within third-party archives.
-
-   Copyright {yyyy} {name of copyright owner}
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-
-= = = = =
-
-Parts of typeshed are licensed under different licenses (like the MIT
-license), reproduced below.
-
-= = = = =
-
-The MIT License
-
-Copyright (c) 2015 Jukka Lehtosalo and contributors
-
-Permission is hereby granted, free of charge, to any person obtaining a
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-to deal in the Software without restriction, including without limitation
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-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-DEALINGS IN THE SOFTWARE.
-
-= = = = =

crates/red_knot/vendor/typeshed/README.md

@@ -1,124 +0,0 @@
-# typeshed
-
-[![Tests](https://github.com/python/typeshed/actions/workflows/tests.yml/badge.svg)](https://github.com/python/typeshed/actions/workflows/tests.yml)
-[![Chat at https://gitter.im/python/typing](https://badges.gitter.im/python/typing.svg)](https://gitter.im/python/typing?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-[![Pull Requests Welcome](https://img.shields.io/badge/pull%20requests-welcome-brightgreen.svg)](https://github.com/python/typeshed/blob/main/CONTRIBUTING.md)
-
-## About
-
-Typeshed contains external type annotations for the Python standard library
-and Python builtins, as well as third party packages as contributed by
-people external to those projects.
-
-This data can e.g. be used for static analysis, type checking, type inference,
-and autocompletion.
-
-For information on how to use typeshed, read below.  Information for
-contributors can be found in [CONTRIBUTING.md](CONTRIBUTING.md).  **Please read
-it before submitting pull requests; do not report issues with annotations to
-the project the stubs are for, but instead report them here to typeshed.**
-
-Further documentation on stub files, typeshed, and Python's typing system in
-general, can also be found at https://typing.readthedocs.io/en/latest/.
-
-Typeshed supports Python versions 3.8 and up.
-
-## Using
-
-If you're just using a type checker ([mypy](https://github.com/python/mypy/),
-[pyright](https://github.com/microsoft/pyright),
-[pytype](https://github.com/google/pytype/), PyCharm, ...), as opposed to
-developing it, you don't need to interact with the typeshed repo at
-all: a copy of standard library part of typeshed is bundled with type checkers.
-And type stubs for third party packages and modules you are using can
-be installed from PyPI. For example, if you are using `html5lib` and `requests`,
-you can install the type stubs using
-
-```bash
-$ pip install types-html5lib types-requests
-```
-
-These PyPI packages follow [PEP 561](http://www.python.org/dev/peps/pep-0561/)
-and are automatically released (up to once a day) by
-[typeshed internal machinery](https://github.com/typeshed-internal/stub_uploader).
-
-Type checkers should be able to use these stub packages when installed. For more
-details, see the documentation for your type checker.
-
-### Package versioning for third-party stubs
-
-Version numbers of third-party stub packages consist of at least four parts.
-All parts of the stub version, except for the last part, correspond to the
-version of the runtime package being stubbed. For example, if the `types-foo`
-package has version `1.2.0.20240309`, this guarantees that the `types-foo` package
-contains stubs targeted against `foo==1.2.*` and tested against the latest
-version of `foo` matching that specifier. In this example, the final element
-of the version number (20240309) indicates that the stub package was pushed on
-March 9, 2024.
-
-At typeshed, we try to keep breaking changes to a minimum. However, due to the
-nature of stubs, any version bump can introduce changes that might make your
-code fail to type check.
-
-There are several strategies available for specifying the version of a stubs
-package you're using, each with its own tradeoffs:
-
-1. Use the same bounds that you use for the package being stubbed. For example,
-   if you use `requests>=2.30.0,<2.32`, you can use
-   `types-requests>=2.30.0,<2.32`. This ensures that the stubs are compatible
-   with the package you are using, but it carries a small risk of breaking
-   type checking due to changes in the stubs.
-
-   Another risk of this strategy is that stubs often lag behind
-   the package being stubbed. You might want to force the package being stubbed
-   to a certain minimum version because it fixes a critical bug, but if
-   correspondingly updated stubs have not been released, your type
-   checking results may not be fully accurate.
-2. Pin the stubs to a known good version and update the pin from time to time
-   (either manually, or using a tool such as dependabot or renovate).
-
-   For example, if you use `types-requests==2.31.0.1`, you can have confidence
-   that upgrading dependencies will not break type checking. However, you will
-   miss out on improvements in the stubs that could potentially improve type
-   checking until you update the pin. This strategy also has the risk that the
-   stubs you are using might become incompatible with the package being stubbed.
-3. Don't pin the stubs. This is the option that demands the least work from
-   you when it comes to updating version pins, and has the advantage that you
-   will automatically benefit from improved stubs whenever a new version of the
-   stubs package is released. However, it carries the risk that the stubs
-   become incompatible with the package being stubbed.
-
-   For example, if a new major version of the package is released, there's a
-   chance the stubs might be updated to reflect the new version of the runtime
-   package before you update the package being stubbed.
-
-You can also switch between the different strategies as needed. For example,
-you could default to strategy (1), but fall back to strategy (2) when
-a problem arises that can't easily be fixed.
-
-### The `_typeshed` package
-
-typeshed includes a package `_typeshed` as part of the standard library.
-This package and its submodules contain utility types, but are not
-available at runtime. For more information about how to use this package,
-[see the `stdlib/_typeshed` directory](https://github.com/python/typeshed/tree/main/stdlib/_typeshed).
-
-## Discussion
-
-If you've run into behavior in the type checker that suggests the type
-stubs for a given library are incorrect or incomplete,
-we want to hear from you!
-
-Our main forum for discussion is the project's [GitHub issue
-tracker](https://github.com/python/typeshed/issues).  This is the right
-place to start a discussion of any of the above or most any other
-topic concerning the project.
-
-If you have general questions about typing with Python, or you need
-a review of your type annotations or stubs outside of typeshed, head over to
-[our discussion forum](https://github.com/python/typing/discussions).
-For less formal discussion, try the typing chat room on
-[gitter.im](https://gitter.im/python/typing).  Some typeshed maintainers
-are almost always present; feel free to find us there and we're happy
-to chat.  Substantive technical discussion will be directed to the
-issue tracker.

crates/red_knot/vendor/typeshed/source_commit.txt

@@ -1 +0,0 @@
-a9d7e861f7a46ae7acd56569326adef302e10f29

crates/red_knot/vendor/typeshed/stdlib/VERSIONS

@@ -1,309 +0,0 @@
-# The structure of this file is as follows:
-# - Blank lines and comments starting with `#` are ignored.
-# - Lines contain the name of a module, followed by a colon,
-#   a space, and a version range (for example: `symbol: 3.0-3.9`).
-#
-# Version ranges may be of the form "X.Y-A.B" or "X.Y-". The
-# first form means that a module was introduced in version X.Y and last
-# available in version A.B. The second form means that the module was
-# introduced in version X.Y and is still available in the latest
-# version of Python.
-#
-# If a submodule is not listed separately, it has the same lifetime as
-# its parent module.
-#
-# Python versions before 3.0 are ignored, so any module that was already
-# present in 3.0 will have "3.0" as its minimum version. Version ranges
-# for unsupported versions of Python 3 are generally accurate but we do
-# not guarantee their correctness.
-
-__future__: 3.0-
-__main__: 3.0-
-_ast: 3.0-
-_bisect: 3.0-
-_bootlocale: 3.4-3.9
-_codecs: 3.0-
-_collections_abc: 3.3-
-_compat_pickle: 3.1-
-_compression: 3.5-
-_csv: 3.0-
-_ctypes: 3.0-
-_curses: 3.0-
-_decimal: 3.3-
-_dummy_thread: 3.0-3.8
-_dummy_threading: 3.0-3.8
-_heapq: 3.0-
-_imp: 3.0-
-_json: 3.0-
-_locale: 3.0-
-_lsprof: 3.0-
-_markupbase: 3.0-
-_msi: 3.0-
-_operator: 3.4-
-_osx_support: 3.0-
-_posixsubprocess: 3.2-
-_py_abc: 3.7-
-_pydecimal: 3.5-
-_random: 3.0-
-_sitebuiltins: 3.4-
-_socket: 3.0-  # present in 3.0 at runtime, but not in typeshed
-_stat: 3.4-
-_thread: 3.0-
-_threading_local: 3.0-
-_tkinter: 3.0-
-_tracemalloc: 3.4-
-_typeshed: 3.0-  # not present at runtime, only for type checking
-_warnings: 3.0-
-_weakref: 3.0-
-_weakrefset: 3.0-
-_winapi: 3.3-
-abc: 3.0-
-aifc: 3.0-3.12
-antigravity: 3.0-
-argparse: 3.0-
-array: 3.0-
-ast: 3.0-
-asynchat: 3.0-3.11
-asyncio: 3.4-
-asyncio.mixins: 3.10-
-asyncio.exceptions: 3.8-
-asyncio.format_helpers: 3.7-
-asyncio.runners: 3.7-
-asyncio.staggered: 3.8-
-asyncio.taskgroups: 3.11-
-asyncio.threads: 3.9-
-asyncio.timeouts: 3.11-
-asyncio.trsock: 3.8-
-asyncore: 3.0-3.11
-atexit: 3.0-
-audioop: 3.0-3.12
-base64: 3.0-
-bdb: 3.0-
-binascii: 3.0-
-binhex: 3.0-3.10
-bisect: 3.0-
-builtins: 3.0-
-bz2: 3.0-
-cProfile: 3.0-
-calendar: 3.0-
-cgi: 3.0-3.12
-cgitb: 3.0-3.12
-chunk: 3.0-3.12
-cmath: 3.0-
-cmd: 3.0-
-code: 3.0-
-codecs: 3.0-
-codeop: 3.0-
-collections: 3.0-
-collections.abc: 3.3-
-colorsys: 3.0-
-compileall: 3.0-
-concurrent: 3.2-
-configparser: 3.0-
-contextlib: 3.0-
-contextvars: 3.7-
-copy: 3.0-
-copyreg: 3.0-
-crypt: 3.0-3.12
-csv: 3.0-
-ctypes: 3.0-
-curses: 3.0-
-dataclasses: 3.7-
-datetime: 3.0-
-dbm: 3.0-
-decimal: 3.0-
-difflib: 3.0-
-dis: 3.0-
-distutils: 3.0-3.11
-distutils.command.bdist_msi: 3.0-3.10
-distutils.command.bdist_wininst: 3.0-3.9
-doctest: 3.0-
-dummy_threading: 3.0-3.8
-email: 3.0-
-encodings: 3.0-
-ensurepip: 3.0-
-enum: 3.4-
-errno: 3.0-
-faulthandler: 3.3-
-fcntl: 3.0-
-filecmp: 3.0-
-fileinput: 3.0-
-fnmatch: 3.0-
-formatter: 3.0-3.9
-fractions: 3.0-
-ftplib: 3.0-
-functools: 3.0-
-gc: 3.0-
-genericpath: 3.0-
-getopt: 3.0-
-getpass: 3.0-
-gettext: 3.0-
-glob: 3.0-
-graphlib: 3.9-
-grp: 3.0-
-gzip: 3.0-
-hashlib: 3.0-
-heapq: 3.0-
-hmac: 3.0-
-html: 3.0-
-http: 3.0-
-imaplib: 3.0-
-imghdr: 3.0-3.12
-imp: 3.0-3.11
-importlib: 3.0-
-importlib._abc: 3.10-
-importlib.metadata: 3.8-
-importlib.metadata._meta: 3.10-
-importlib.readers: 3.10-
-importlib.resources: 3.7-
-importlib.resources.abc: 3.11-
-importlib.resources.readers: 3.11-
-importlib.resources.simple: 3.11-
-importlib.simple: 3.11-
-inspect: 3.0-
-io: 3.0-
-ipaddress: 3.3-
-itertools: 3.0-
-json: 3.0-
-keyword: 3.0-
-lib2to3: 3.0-
-linecache: 3.0-
-locale: 3.0-
-logging: 3.0-
-lzma: 3.3-
-mailbox: 3.0-
-mailcap: 3.0-3.12
-marshal: 3.0-
-math: 3.0-
-mimetypes: 3.0-
-mmap: 3.0-
-modulefinder: 3.0-
-msilib: 3.0-3.12
-msvcrt: 3.0-
-multiprocessing: 3.0-
-multiprocessing.resource_tracker: 3.8-
-multiprocessing.shared_memory: 3.8-
-netrc: 3.0-
-nis: 3.0-3.12
-nntplib: 3.0-3.12
-nt: 3.0-
-ntpath: 3.0-
-nturl2path: 3.0-
-numbers: 3.0-
-opcode: 3.0-
-operator: 3.0-
-optparse: 3.0-
-os: 3.0-
-ossaudiodev: 3.0-3.12
-parser: 3.0-3.9
-pathlib: 3.4-
-pdb: 3.0-
-pickle: 3.0-
-pickletools: 3.0-
-pipes: 3.0-3.12
-pkgutil: 3.0-
-platform: 3.0-
-plistlib: 3.0-
-poplib: 3.0-
-posix: 3.0-
-posixpath: 3.0-
-pprint: 3.0-
-profile: 3.0-
-pstats: 3.0-
-pty: 3.0-
-pwd: 3.0-
-py_compile: 3.0-
-pyclbr: 3.0-
-pydoc: 3.0-
-pydoc_data: 3.0-
-pyexpat: 3.0-
-queue: 3.0-
-quopri: 3.0-
-random: 3.0-
-re: 3.0-
-readline: 3.0-
-reprlib: 3.0-
-resource: 3.0-
-rlcompleter: 3.0-
-runpy: 3.0-
-sched: 3.0-
-secrets: 3.6-
-select: 3.0-
-selectors: 3.4-
-shelve: 3.0-
-shlex: 3.0-
-shutil: 3.0-
-signal: 3.0-
-site: 3.0-
-smtpd: 3.0-3.11
-smtplib: 3.0-
-sndhdr: 3.0-3.12
-socket: 3.0-
-socketserver: 3.0-
-spwd: 3.0-3.12
-sqlite3: 3.0-
-sre_compile: 3.0-
-sre_constants: 3.0-
-sre_parse: 3.0-
-ssl: 3.0-
-stat: 3.0-
-statistics: 3.4-
-string: 3.0-
-stringprep: 3.0-
-struct: 3.0-
-subprocess: 3.0-
-sunau: 3.0-3.12
-symbol: 3.0-3.9
-symtable: 3.0-
-sys: 3.0-
-sys._monitoring: 3.12-  # Doesn't actually exist. See comments in the stub.
-sysconfig: 3.0-
-syslog: 3.0-
-tabnanny: 3.0-
-tarfile: 3.0-
-telnetlib: 3.0-3.12
-tempfile: 3.0-
-termios: 3.0-
-textwrap: 3.0-
-this: 3.0-
-threading: 3.0-
-time: 3.0-
-timeit: 3.0-
-tkinter: 3.0-
-token: 3.0-
-tokenize: 3.0-
-tomllib: 3.11-
-trace: 3.0-
-traceback: 3.0-
-tracemalloc: 3.4-
-tty: 3.0-
-turtle: 3.0-
-types: 3.0-
-typing: 3.5-
-typing_extensions: 3.0-
-unicodedata: 3.0-
-unittest: 3.0-
-unittest._log: 3.9-
-unittest.async_case: 3.8-
-urllib: 3.0-
-uu: 3.0-3.12
-uuid: 3.0-
-venv: 3.3-
-warnings: 3.0-
-wave: 3.0-
-weakref: 3.0-
-webbrowser: 3.0-
-winreg: 3.0-
-winsound: 3.0-
-wsgiref: 3.0-
-wsgiref.types: 3.11-
-xdrlib: 3.0-3.12
-xml: 3.0-
-xmlrpc: 3.0-
-xxlimited: 3.2-
-zipapp: 3.5-
-zipfile: 3.0-
-zipfile._path: 3.12-
-zipimport: 3.0-
-zlib: 3.0-
-zoneinfo: 3.9-

crates/red_knot/vendor/typeshed/stdlib/__future__.pyi

@@ -1,36 +0,0 @@
-from typing_extensions import TypeAlias
-
-_VersionInfo: TypeAlias = tuple[int, int, int, str, int]
-
-class _Feature:
-    def __init__(self, optionalRelease: _VersionInfo, mandatoryRelease: _VersionInfo | None, compiler_flag: int) -> None: ...
-    def getOptionalRelease(self) -> _VersionInfo: ...
-    def getMandatoryRelease(self) -> _VersionInfo | None: ...
-    compiler_flag: int
-
-absolute_import: _Feature
-division: _Feature
-generators: _Feature
-nested_scopes: _Feature
-print_function: _Feature
-unicode_literals: _Feature
-with_statement: _Feature
-barry_as_FLUFL: _Feature
-generator_stop: _Feature
-annotations: _Feature
-
-all_feature_names: list[str]  # undocumented
-
-__all__ = [
-    "all_feature_names",
-    "absolute_import",
-    "division",
-    "generators",
-    "nested_scopes",
-    "print_function",
-    "unicode_literals",
-    "with_statement",
-    "barry_as_FLUFL",
-    "generator_stop",
-    "annotations",
-]

crates/red_knot/vendor/typeshed/stdlib/__main__.pyi

@@ -1,3 +0,0 @@
-from typing import Any
-
-def __getattr__(name: str) -> Any: ...

crates/red_knot/vendor/typeshed/stdlib/_ast.pyi

@@ -1,591 +0,0 @@
-import sys
-import typing_extensions
-from typing import Any, ClassVar, Literal
-
-PyCF_ONLY_AST: Literal[1024]
-PyCF_TYPE_COMMENTS: Literal[4096]
-PyCF_ALLOW_TOP_LEVEL_AWAIT: Literal[8192]
-
-# Alias used for fields that must always be valid identifiers
-# A string `x` counts as a valid identifier if both the following are True
-# (1) `x.isidentifier()` evaluates to `True`
-# (2) `keyword.iskeyword(x)` evaluates to `False`
-_Identifier: typing_extensions.TypeAlias = str
-
-class AST:
-    if sys.version_info >= (3, 10):
-        __match_args__ = ()
-    _attributes: ClassVar[tuple[str, ...]]
-    _fields: ClassVar[tuple[str, ...]]
-    def __init__(self, *args: Any, **kwargs: Any) -> None: ...
-    # TODO: Not all nodes have all of the following attributes
-    lineno: int
-    col_offset: int
-    end_lineno: int | None
-    end_col_offset: int | None
-    type_comment: str | None
-
-class mod(AST): ...
-class type_ignore(AST): ...
-
-class TypeIgnore(type_ignore):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("lineno", "tag")
-    tag: str
-
-class FunctionType(mod):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("argtypes", "returns")
-    argtypes: list[expr]
-    returns: expr
-
-class Module(mod):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("body", "type_ignores")
-    body: list[stmt]
-    type_ignores: list[TypeIgnore]
-
-class Interactive(mod):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("body",)
-    body: list[stmt]
-
-class Expression(mod):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("body",)
-    body: expr
-
-class stmt(AST): ...
-
-class FunctionDef(stmt):
-    if sys.version_info >= (3, 12):
-        __match_args__ = ("name", "args", "body", "decorator_list", "returns", "type_comment", "type_params")
-    elif sys.version_info >= (3, 10):
-        __match_args__ = ("name", "args", "body", "decorator_list", "returns", "type_comment")
-    name: _Identifier
-    args: arguments
-    body: list[stmt]
-    decorator_list: list[expr]
-    returns: expr | None
-    if sys.version_info >= (3, 12):
-        type_params: list[type_param]
-
-class AsyncFunctionDef(stmt):
-    if sys.version_info >= (3, 12):
-        __match_args__ = ("name", "args", "body", "decorator_list", "returns", "type_comment", "type_params")
-    elif sys.version_info >= (3, 10):
-        __match_args__ = ("name", "args", "body", "decorator_list", "returns", "type_comment")
-    name: _Identifier
-    args: arguments
-    body: list[stmt]
-    decorator_list: list[expr]
-    returns: expr | None
-    if sys.version_info >= (3, 12):
-        type_params: list[type_param]
-
-class ClassDef(stmt):
-    if sys.version_info >= (3, 12):
-        __match_args__ = ("name", "bases", "keywords", "body", "decorator_list", "type_params")
-    elif sys.version_info >= (3, 10):
-        __match_args__ = ("name", "bases", "keywords", "body", "decorator_list")
-    name: _Identifier
-    bases: list[expr]
-    keywords: list[keyword]
-    body: list[stmt]
-    decorator_list: list[expr]
-    if sys.version_info >= (3, 12):
-        type_params: list[type_param]
-
-class Return(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("value",)
-    value: expr | None
-
-class Delete(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("targets",)
-    targets: list[expr]
-
-class Assign(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("targets", "value", "type_comment")
-    targets: list[expr]
-    value: expr
-
-class AugAssign(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("target", "op", "value")
-    target: Name | Attribute | Subscript
-    op: operator
-    value: expr
-
-class AnnAssign(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("target", "annotation", "value", "simple")
-    target: Name | Attribute | Subscript
-    annotation: expr
-    value: expr | None
-    simple: int
-
-class For(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("target", "iter", "body", "orelse", "type_comment")
-    target: expr
-    iter: expr
-    body: list[stmt]
-    orelse: list[stmt]
-
-class AsyncFor(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("target", "iter", "body", "orelse", "type_comment")
-    target: expr
-    iter: expr
-    body: list[stmt]
-    orelse: list[stmt]
-
-class While(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("test", "body", "orelse")
-    test: expr
-    body: list[stmt]
-    orelse: list[stmt]
-
-class If(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("test", "body", "orelse")
-    test: expr
-    body: list[stmt]
-    orelse: list[stmt]
-
-class With(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("items", "body", "type_comment")
-    items: list[withitem]
-    body: list[stmt]
-
-class AsyncWith(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("items", "body", "type_comment")
-    items: list[withitem]
-    body: list[stmt]
-
-class Raise(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("exc", "cause")
-    exc: expr | None
-    cause: expr | None
-
-class Try(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("body", "handlers", "orelse", "finalbody")
-    body: list[stmt]
-    handlers: list[ExceptHandler]
-    orelse: list[stmt]
-    finalbody: list[stmt]
-
-if sys.version_info >= (3, 11):
-    class TryStar(stmt):
-        __match_args__ = ("body", "handlers", "orelse", "finalbody")
-        body: list[stmt]
-        handlers: list[ExceptHandler]
-        orelse: list[stmt]
-        finalbody: list[stmt]
-
-class Assert(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("test", "msg")
-    test: expr
-    msg: expr | None
-
-class Import(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("names",)
-    names: list[alias]
-
-class ImportFrom(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("module", "names", "level")
-    module: str | None
-    names: list[alias]
-    level: int
-
-class Global(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("names",)
-    names: list[_Identifier]
-
-class Nonlocal(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("names",)
-    names: list[_Identifier]
-
-class Expr(stmt):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("value",)
-    value: expr
-
-class Pass(stmt): ...
-class Break(stmt): ...
-class Continue(stmt): ...
-class expr(AST): ...
-
-class BoolOp(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("op", "values")
-    op: boolop
-    values: list[expr]
-
-class BinOp(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("left", "op", "right")
-    left: expr
-    op: operator
-    right: expr
-
-class UnaryOp(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("op", "operand")
-    op: unaryop
-    operand: expr
-
-class Lambda(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("args", "body")
-    args: arguments
-    body: expr
-
-class IfExp(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("test", "body", "orelse")
-    test: expr
-    body: expr
-    orelse: expr
-
-class Dict(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("keys", "values")
-    keys: list[expr | None]
-    values: list[expr]
-
-class Set(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("elts",)
-    elts: list[expr]
-
-class ListComp(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("elt", "generators")
-    elt: expr
-    generators: list[comprehension]
-
-class SetComp(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("elt", "generators")
-    elt: expr
-    generators: list[comprehension]
-
-class DictComp(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("key", "value", "generators")
-    key: expr
-    value: expr
-    generators: list[comprehension]
-
-class GeneratorExp(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("elt", "generators")
-    elt: expr
-    generators: list[comprehension]
-
-class Await(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("value",)
-    value: expr
-
-class Yield(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("value",)
-    value: expr | None
-
-class YieldFrom(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("value",)
-    value: expr
-
-class Compare(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("left", "ops", "comparators")
-    left: expr
-    ops: list[cmpop]
-    comparators: list[expr]
-
-class Call(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("func", "args", "keywords")
-    func: expr
-    args: list[expr]
-    keywords: list[keyword]
-
-class FormattedValue(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("value", "conversion", "format_spec")
-    value: expr
-    conversion: int
-    format_spec: expr | None
-
-class JoinedStr(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("values",)
-    values: list[expr]
-
-class Constant(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("value", "kind")
-    value: Any  # None, str, bytes, bool, int, float, complex, Ellipsis
-    kind: str | None
-    # Aliases for value, for backwards compatibility
-    s: Any
-    n: int | float | complex
-
-class NamedExpr(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("target", "value")
-    target: Name
-    value: expr
-
-class Attribute(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("value", "attr", "ctx")
-    value: expr
-    attr: _Identifier
-    ctx: expr_context
-
-if sys.version_info >= (3, 9):
-    _Slice: typing_extensions.TypeAlias = expr
-else:
-    class slice(AST): ...
-    _Slice: typing_extensions.TypeAlias = slice
-
-class Slice(_Slice):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("lower", "upper", "step")
-    lower: expr | None
-    upper: expr | None
-    step: expr | None
-
-if sys.version_info < (3, 9):
-    class ExtSlice(slice):
-        dims: list[slice]
-
-    class Index(slice):
-        value: expr
-
-class Subscript(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("value", "slice", "ctx")
-    value: expr
-    slice: _Slice
-    ctx: expr_context
-
-class Starred(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("value", "ctx")
-    value: expr
-    ctx: expr_context
-
-class Name(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("id", "ctx")
-    id: _Identifier
-    ctx: expr_context
-
-class List(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("elts", "ctx")
-    elts: list[expr]
-    ctx: expr_context
-
-class Tuple(expr):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("elts", "ctx")
-    elts: list[expr]
-    ctx: expr_context
-    if sys.version_info >= (3, 9):
-        dims: list[expr]
-
-class expr_context(AST): ...
-
-if sys.version_info < (3, 9):
-    class AugLoad(expr_context): ...
-    class AugStore(expr_context): ...
-    class Param(expr_context): ...
-
-    class Suite(mod):
-        body: list[stmt]
-
-class Del(expr_context): ...
-class Load(expr_context): ...
-class Store(expr_context): ...
-class boolop(AST): ...
-class And(boolop): ...
-class Or(boolop): ...
-class operator(AST): ...
-class Add(operator): ...
-class BitAnd(operator): ...
-class BitOr(operator): ...
-class BitXor(operator): ...
-class Div(operator): ...
-class FloorDiv(operator): ...
-class LShift(operator): ...
-class Mod(operator): ...
-class Mult(operator): ...
-class MatMult(operator): ...
-class Pow(operator): ...
-class RShift(operator): ...
-class Sub(operator): ...
-class unaryop(AST): ...
-class Invert(unaryop): ...
-class Not(unaryop): ...
-class UAdd(unaryop): ...
-class USub(unaryop): ...
-class cmpop(AST): ...
-class Eq(cmpop): ...
-class Gt(cmpop): ...
-class GtE(cmpop): ...
-class In(cmpop): ...
-class Is(cmpop): ...
-class IsNot(cmpop): ...
-class Lt(cmpop): ...
-class LtE(cmpop): ...
-class NotEq(cmpop): ...
-class NotIn(cmpop): ...
-
-class comprehension(AST):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("target", "iter", "ifs", "is_async")
-    target: expr
-    iter: expr
-    ifs: list[expr]
-    is_async: int
-
-class excepthandler(AST): ...
-
-class ExceptHandler(excepthandler):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("type", "name", "body")
-    type: expr | None
-    name: _Identifier | None
-    body: list[stmt]
-
-class arguments(AST):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("posonlyargs", "args", "vararg", "kwonlyargs", "kw_defaults", "kwarg", "defaults")
-    posonlyargs: list[arg]
-    args: list[arg]
-    vararg: arg | None
-    kwonlyargs: list[arg]
-    kw_defaults: list[expr | None]
-    kwarg: arg | None
-    defaults: list[expr]
-
-class arg(AST):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("arg", "annotation", "type_comment")
-    arg: _Identifier
-    annotation: expr | None
-
-class keyword(AST):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("arg", "value")
-    arg: _Identifier | None
-    value: expr
-
-class alias(AST):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("name", "asname")
-    name: str
-    asname: _Identifier | None
-
-class withitem(AST):
-    if sys.version_info >= (3, 10):
-        __match_args__ = ("context_expr", "optional_vars")
-    context_expr: expr
-    optional_vars: expr | None
-
-if sys.version_info >= (3, 10):
-    class Match(stmt):
-        __match_args__ = ("subject", "cases")
-        subject: expr
-        cases: list[match_case]
-
-    class pattern(AST): ...
-    # Without the alias, Pyright complains variables named pattern are recursively defined
-    _Pattern: typing_extensions.TypeAlias = pattern
-
-    class match_case(AST):
-        __match_args__ = ("pattern", "guard", "body")
-        pattern: _Pattern
-        guard: expr | None
-        body: list[stmt]
-
-    class MatchValue(pattern):
-        __match_args__ = ("value",)
-        value: expr
-
-    class MatchSingleton(pattern):
-        __match_args__ = ("value",)
-        value: Literal[True, False] | None
-
-    class MatchSequence(pattern):
-        __match_args__ = ("patterns",)
-        patterns: list[pattern]
-
-    class MatchStar(pattern):
-        __match_args__ = ("name",)
-        name: _Identifier | None
-
-    class MatchMapping(pattern):
-        __match_args__ = ("keys", "patterns", "rest")
-        keys: list[expr]
-        patterns: list[pattern]
-        rest: _Identifier | None
-
-    class MatchClass(pattern):
-        __match_args__ = ("cls", "patterns", "kwd_attrs", "kwd_patterns")
-        cls: expr
-        patterns: list[pattern]
-        kwd_attrs: list[_Identifier]
-        kwd_patterns: list[pattern]
-
-    class MatchAs(pattern):
-        __match_args__ = ("pattern", "name")
-        pattern: _Pattern | None
-        name: _Identifier | None
-
-    class MatchOr(pattern):
-        __match_args__ = ("patterns",)
-        patterns: list[pattern]
-
-if sys.version_info >= (3, 12):
-    class type_param(AST):
-        end_lineno: int
-        end_col_offset: int
-
-    class TypeVar(type_param):
-        __match_args__ = ("name", "bound")
-        name: _Identifier
-        bound: expr | None
-
-    class ParamSpec(type_param):
-        __match_args__ = ("name",)
-        name: _Identifier
-
-    class TypeVarTuple(type_param):
-        __match_args__ = ("name",)
-        name: _Identifier
-
-    class TypeAlias(stmt):
-        __match_args__ = ("name", "type_params", "value")
-        name: Name
-        type_params: list[type_param]
-        value: expr

crates/red_knot/vendor/typeshed/stdlib/_bisect.pyi

@@ -1,84 +0,0 @@
-import sys
-from _typeshed import SupportsLenAndGetItem, SupportsRichComparisonT
-from collections.abc import Callable, MutableSequence
-from typing import TypeVar, overload
-
-_T = TypeVar("_T")
-
-if sys.version_info >= (3, 10):
-    @overload
-    def bisect_left(
-        a: SupportsLenAndGetItem[SupportsRichComparisonT],
-        x: SupportsRichComparisonT,
-        lo: int = 0,
-        hi: int | None = None,
-        *,
-        key: None = None,
-    ) -> int: ...
-    @overload
-    def bisect_left(
-        a: SupportsLenAndGetItem[_T],
-        x: SupportsRichComparisonT,
-        lo: int = 0,
-        hi: int | None = None,
-        *,
-        key: Callable[[_T], SupportsRichComparisonT],
-    ) -> int: ...
-    @overload
-    def bisect_right(
-        a: SupportsLenAndGetItem[SupportsRichComparisonT],
-        x: SupportsRichComparisonT,
-        lo: int = 0,
-        hi: int | None = None,
-        *,
-        key: None = None,
-    ) -> int: ...
-    @overload
-    def bisect_right(
-        a: SupportsLenAndGetItem[_T],
-        x: SupportsRichComparisonT,
-        lo: int = 0,
-        hi: int | None = None,
-        *,
-        key: Callable[[_T], SupportsRichComparisonT],
-    ) -> int: ...
-    @overload
-    def insort_left(
-        a: MutableSequence[SupportsRichComparisonT],
-        x: SupportsRichComparisonT,
-        lo: int = 0,
-        hi: int | None = None,
-        *,
-        key: None = None,
-    ) -> None: ...
-    @overload
-    def insort_left(
-        a: MutableSequence[_T], x: _T, lo: int = 0, hi: int | None = None, *, key: Callable[[_T], SupportsRichComparisonT]
-    ) -> None: ...
-    @overload
-    def insort_right(
-        a: MutableSequence[SupportsRichComparisonT],
-        x: SupportsRichComparisonT,
-        lo: int = 0,
-        hi: int | None = None,
-        *,
-        key: None = None,
-    ) -> None: ...
-    @overload
-    def insort_right(
-        a: MutableSequence[_T], x: _T, lo: int = 0, hi: int | None = None, *, key: Callable[[_T], SupportsRichComparisonT]
-    ) -> None: ...
-
-else:
-    def bisect_left(
-        a: SupportsLenAndGetItem[SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int = 0, hi: int | None = None
-    ) -> int: ...
-    def bisect_right(
-        a: SupportsLenAndGetItem[SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int = 0, hi: int | None = None
-    ) -> int: ...
-    def insort_left(
-        a: MutableSequence[SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int = 0, hi: int | None = None
-    ) -> None: ...
-    def insort_right(
-        a: MutableSequence[SupportsRichComparisonT], x: SupportsRichComparisonT, lo: int = 0, hi: int | None = None
-    ) -> None: ...

crates/red_knot/vendor/typeshed/stdlib/_bootlocale.pyi

@@ -1 +0,0 @@
-def getpreferredencoding(do_setlocale: bool = True) -> str: ...

crates/red_knot/vendor/typeshed/stdlib/_codecs.pyi

@@ -1,133 +0,0 @@
-import codecs
-import sys
-from _typeshed import ReadableBuffer
-from collections.abc import Callable
-from typing import Literal, overload
-from typing_extensions import TypeAlias
-
-# This type is not exposed; it is defined in unicodeobject.c
-class _EncodingMap:
-    def size(self) -> int: ...
-
-_CharMap: TypeAlias = dict[int, int] | _EncodingMap
-_Handler: TypeAlias = Callable[[UnicodeError], tuple[str | bytes, int]]
-_SearchFunction: TypeAlias = Callable[[str], codecs.CodecInfo | None]
-
-def register(search_function: _SearchFunction, /) -> None: ...
-
-if sys.version_info >= (3, 10):
-    def unregister(search_function: _SearchFunction, /) -> None: ...
-
-def register_error(errors: str, handler: _Handler, /) -> None: ...
-def lookup_error(name: str, /) -> _Handler: ...
-
-# The type ignore on `encode` and `decode` is to avoid issues with overlapping overloads, for more details, see #300
-# https://docs.python.org/3/library/codecs.html#binary-transforms
-_BytesToBytesEncoding: TypeAlias = Literal[
-    "base64",
-    "base_64",
-    "base64_codec",
-    "bz2",
-    "bz2_codec",
-    "hex",
-    "hex_codec",
-    "quopri",
-    "quotedprintable",
-    "quoted_printable",
-    "quopri_codec",
-    "uu",
-    "uu_codec",
-    "zip",
-    "zlib",
-    "zlib_codec",
-]
-# https://docs.python.org/3/library/codecs.html#text-transforms
-_StrToStrEncoding: TypeAlias = Literal["rot13", "rot_13"]
-
-@overload
-def encode(obj: ReadableBuffer, encoding: _BytesToBytesEncoding, errors: str = "strict") -> bytes: ...
-@overload
-def encode(obj: str, encoding: _StrToStrEncoding, errors: str = "strict") -> str: ...  # type: ignore[overload-overlap]
-@overload
-def encode(obj: str, encoding: str = "utf-8", errors: str = "strict") -> bytes: ...
-@overload
-def decode(obj: ReadableBuffer, encoding: _BytesToBytesEncoding, errors: str = "strict") -> bytes: ...  # type: ignore[overload-overlap]
-@overload
-def decode(obj: str, encoding: _StrToStrEncoding, errors: str = "strict") -> str: ...
-
-# these are documented as text encodings but in practice they also accept str as input
-@overload
-def decode(
-    obj: str,
-    encoding: Literal["unicode_escape", "unicode-escape", "raw_unicode_escape", "raw-unicode-escape"],
-    errors: str = "strict",
-) -> str: ...
-
-# hex is officially documented as a bytes to bytes encoding, but it appears to also work with str
-@overload
-def decode(obj: str, encoding: Literal["hex", "hex_codec"], errors: str = "strict") -> bytes: ...
-@overload
-def decode(obj: ReadableBuffer, encoding: str = "utf-8", errors: str = "strict") -> str: ...
-def lookup(encoding: str, /) -> codecs.CodecInfo: ...
-def charmap_build(map: str, /) -> _CharMap: ...
-def ascii_decode(data: ReadableBuffer, errors: str | None = None, /) -> tuple[str, int]: ...
-def ascii_encode(str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...
-def charmap_decode(data: ReadableBuffer, errors: str | None = None, mapping: _CharMap | None = None, /) -> tuple[str, int]: ...
-def charmap_encode(str: str, errors: str | None = None, mapping: _CharMap | None = None, /) -> tuple[bytes, int]: ...
-def escape_decode(data: str | ReadableBuffer, errors: str | None = None, /) -> tuple[str, int]: ...
-def escape_encode(data: bytes, errors: str | None = None, /) -> tuple[bytes, int]: ...
-def latin_1_decode(data: ReadableBuffer, errors: str | None = None, /) -> tuple[str, int]: ...
-def latin_1_encode(str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...
-
-if sys.version_info >= (3, 9):
-    def raw_unicode_escape_decode(
-        data: str | ReadableBuffer, errors: str | None = None, final: bool = True, /
-    ) -> tuple[str, int]: ...
-
-else:
-    def raw_unicode_escape_decode(data: str | ReadableBuffer, errors: str | None = None, /) -> tuple[str, int]: ...
-
-def raw_unicode_escape_encode(str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...
-def readbuffer_encode(data: str | ReadableBuffer, errors: str | None = None, /) -> tuple[bytes, int]: ...
-
-if sys.version_info >= (3, 9):
-    def unicode_escape_decode(
-        data: str | ReadableBuffer, errors: str | None = None, final: bool = True, /
-    ) -> tuple[str, int]: ...
-
-else:
-    def unicode_escape_decode(data: str | ReadableBuffer, errors: str | None = None, /) -> tuple[str, int]: ...
-
-def unicode_escape_encode(str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...
-def utf_16_be_decode(data: ReadableBuffer, errors: str | None = None, final: bool = False, /) -> tuple[str, int]: ...
-def utf_16_be_encode(str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...
-def utf_16_decode(data: ReadableBuffer, errors: str | None = None, final: bool = False, /) -> tuple[str, int]: ...
-def utf_16_encode(str: str, errors: str | None = None, byteorder: int = 0, /) -> tuple[bytes, int]: ...
-def utf_16_ex_decode(
-    data: ReadableBuffer, errors: str | None = None, byteorder: int = 0, final: bool = False, /
-) -> tuple[str, int, int]: ...
-def utf_16_le_decode(data: ReadableBuffer, errors: str | None = None, final: bool = False, /) -> tuple[str, int]: ...
-def utf_16_le_encode(str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...
-def utf_32_be_decode(data: ReadableBuffer, errors: str | None = None, final: bool = False, /) -> tuple[str, int]: ...
-def utf_32_be_encode(str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...
-def utf_32_decode(data: ReadableBuffer, errors: str | None = None, final: bool = False, /) -> tuple[str, int]: ...
-def utf_32_encode(str: str, errors: str | None = None, byteorder: int = 0, /) -> tuple[bytes, int]: ...
-def utf_32_ex_decode(
-    data: ReadableBuffer, errors: str | None = None, byteorder: int = 0, final: bool = False, /
-) -> tuple[str, int, int]: ...
-def utf_32_le_decode(data: ReadableBuffer, errors: str | None = None, final: bool = False, /) -> tuple[str, int]: ...
-def utf_32_le_encode(str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...
-def utf_7_decode(data: ReadableBuffer, errors: str | None = None, final: bool = False, /) -> tuple[str, int]: ...
-def utf_7_encode(str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...
-def utf_8_decode(data: ReadableBuffer, errors: str | None = None, final: bool = False, /) -> tuple[str, int]: ...
-def utf_8_encode(str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...
-
-if sys.platform == "win32":
-    def mbcs_decode(data: ReadableBuffer, errors: str | None = None, final: bool = False, /) -> tuple[str, int]: ...
-    def mbcs_encode(str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...
-    def code_page_decode(
-        codepage: int, data: ReadableBuffer, errors: str | None = None, final: bool = False, /
-    ) -> tuple[str, int]: ...
-    def code_page_encode(code_page: int, str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...
-    def oem_decode(data: ReadableBuffer, errors: str | None = None, final: bool = False, /) -> tuple[str, int]: ...
-    def oem_encode(str: str, errors: str | None = None, /) -> tuple[bytes, int]: ...

crates/red_knot/vendor/typeshed/stdlib/_collections_abc.pyi

@@ -1,94 +0,0 @@
-import sys
-from abc import abstractmethod
-from types import MappingProxyType
-from typing import (  # noqa: Y022,Y038,Y057
-    AbstractSet as Set,
-    AsyncGenerator as AsyncGenerator,
-    AsyncIterable as AsyncIterable,
-    AsyncIterator as AsyncIterator,
-    Awaitable as Awaitable,
-    ByteString as ByteString,
-    Callable as Callable,
-    Collection as Collection,
-    Container as Container,
-    Coroutine as Coroutine,
-    Generator as Generator,
-    Generic,
-    Hashable as Hashable,
-    ItemsView as ItemsView,
-    Iterable as Iterable,
-    Iterator as Iterator,
-    KeysView as KeysView,
-    Mapping as Mapping,
-    MappingView as MappingView,
-    MutableMapping as MutableMapping,
-    MutableSequence as MutableSequence,
-    MutableSet as MutableSet,
-    Protocol,
-    Reversible as Reversible,
-    Sequence as Sequence,
-    Sized as Sized,
-    TypeVar,
-    ValuesView as ValuesView,
-    final,
-    runtime_checkable,
-)
-
-__all__ = [
-    "Awaitable",
-    "Coroutine",
-    "AsyncIterable",
-    "AsyncIterator",
-    "AsyncGenerator",
-    "Hashable",
-    "Iterable",
-    "Iterator",
-    "Generator",
-    "Reversible",
-    "Sized",
-    "Container",
-    "Callable",
-    "Collection",
-    "Set",
-    "MutableSet",
-    "Mapping",
-    "MutableMapping",
-    "MappingView",
-    "KeysView",
-    "ItemsView",
-    "ValuesView",
-    "Sequence",
-    "MutableSequence",
-    "ByteString",
-]
-if sys.version_info >= (3, 12):
-    __all__ += ["Buffer"]
-
-_KT_co = TypeVar("_KT_co", covariant=True)  # Key type covariant containers.
-_VT_co = TypeVar("_VT_co", covariant=True)  # Value type covariant containers.
-
-@final
-class dict_keys(KeysView[_KT_co], Generic[_KT_co, _VT_co]):  # undocumented
-    def __eq__(self, value: object, /) -> bool: ...
-    if sys.version_info >= (3, 10):
-        @property
-        def mapping(self) -> MappingProxyType[_KT_co, _VT_co]: ...
-
-@final
-class dict_values(ValuesView[_VT_co], Generic[_KT_co, _VT_co]):  # undocumented
-    if sys.version_info >= (3, 10):
-        @property
-        def mapping(self) -> MappingProxyType[_KT_co, _VT_co]: ...
-
-@final
-class dict_items(ItemsView[_KT_co, _VT_co]):  # undocumented
-    def __eq__(self, value: object, /) -> bool: ...
-    if sys.version_info >= (3, 10):
-        @property
-        def mapping(self) -> MappingProxyType[_KT_co, _VT_co]: ...
-
-if sys.version_info >= (3, 12):
-    @runtime_checkable
-    class Buffer(Protocol):
-        @abstractmethod
-        def __buffer__(self, flags: int, /) -> memoryview: ...

crates/red_knot/vendor/typeshed/stdlib/_compat_pickle.pyi

@@ -1,8 +0,0 @@
-IMPORT_MAPPING: dict[str, str]
-NAME_MAPPING: dict[tuple[str, str], tuple[str, str]]
-PYTHON2_EXCEPTIONS: tuple[str, ...]
-MULTIPROCESSING_EXCEPTIONS: tuple[str, ...]
-REVERSE_IMPORT_MAPPING: dict[str, str]
-REVERSE_NAME_MAPPING: dict[tuple[str, str], tuple[str, str]]
-PYTHON3_OSERROR_EXCEPTIONS: tuple[str, ...]
-PYTHON3_IMPORTERROR_EXCEPTIONS: tuple[str, ...]

crates/red_knot/vendor/typeshed/stdlib/_compression.pyi

@@ -1,25 +0,0 @@
-from _typeshed import WriteableBuffer
-from collections.abc import Callable
-from io import DEFAULT_BUFFER_SIZE, BufferedIOBase, RawIOBase
-from typing import Any, Protocol
-
-BUFFER_SIZE = DEFAULT_BUFFER_SIZE
-
-class _Reader(Protocol):
-    def read(self, n: int, /) -> bytes: ...
-    def seekable(self) -> bool: ...
-    def seek(self, n: int, /) -> Any: ...
-
-class BaseStream(BufferedIOBase): ...
-
-class DecompressReader(RawIOBase):
-    def __init__(
-        self,
-        fp: _Reader,
-        decomp_factory: Callable[..., object],
-        trailing_error: type[Exception] | tuple[type[Exception], ...] = (),
-        **decomp_args: Any,
-    ) -> None: ...
-    def readinto(self, b: WriteableBuffer) -> int: ...
-    def read(self, size: int = -1) -> bytes: ...
-    def seek(self, offset: int, whence: int = 0) -> int: ...

crates/red_knot/vendor/typeshed/stdlib/_csv.pyi

@@ -1,90 +0,0 @@
-import sys
-from _typeshed import SupportsWrite
-from collections.abc import Iterable, Iterator
-from typing import Any, Final, Literal
-from typing_extensions import TypeAlias
-
-__version__: Final[str]
-
-QUOTE_ALL: Literal[1]
-QUOTE_MINIMAL: Literal[0]
-QUOTE_NONE: Literal[3]
-QUOTE_NONNUMERIC: Literal[2]
-if sys.version_info >= (3, 12):
-    QUOTE_STRINGS: Literal[4]
-    QUOTE_NOTNULL: Literal[5]
-
-# Ideally this would be `QUOTE_ALL | QUOTE_MINIMAL | QUOTE_NONE | QUOTE_NONNUMERIC`
-# However, using literals in situations like these can cause false-positives (see #7258)
-_QuotingType: TypeAlias = int
-
-class Error(Exception): ...
-
-class Dialect:
-    delimiter: str
-    quotechar: str | None
-    escapechar: str | None
-    doublequote: bool
-    skipinitialspace: bool
-    lineterminator: str
-    quoting: _QuotingType
-    strict: bool
-    def __init__(self) -> None: ...
-
-_DialectLike: TypeAlias = str | Dialect | type[Dialect]
-
-class _reader(Iterator[list[str]]):
-    @property
-    def dialect(self) -> Dialect: ...
-    line_num: int
-    def __next__(self) -> list[str]: ...
-
-class _writer:
-    @property
-    def dialect(self) -> Dialect: ...
-    def writerow(self, row: Iterable[Any]) -> Any: ...
-    def writerows(self, rows: Iterable[Iterable[Any]]) -> None: ...
-
-def writer(
-    csvfile: SupportsWrite[str],
-    dialect: _DialectLike = "excel",
-    *,
-    delimiter: str = ",",
-    quotechar: str | None = '"',
-    escapechar: str | None = None,
-    doublequote: bool = True,
-    skipinitialspace: bool = False,
-    lineterminator: str = "\r\n",
-    quoting: _QuotingType = 0,
-    strict: bool = False,
-) -> _writer: ...
-def reader(
-    csvfile: Iterable[str],
-    dialect: _DialectLike = "excel",
-    *,
-    delimiter: str = ",",
-    quotechar: str | None = '"',
-    escapechar: str | None = None,
-    doublequote: bool = True,
-    skipinitialspace: bool = False,
-    lineterminator: str = "\r\n",
-    quoting: _QuotingType = 0,
-    strict: bool = False,
-) -> _reader: ...
-def register_dialect(
-    name: str,
-    dialect: type[Dialect] = ...,
-    *,
-    delimiter: str = ",",
-    quotechar: str | None = '"',
-    escapechar: str | None = None,
-    doublequote: bool = True,
-    skipinitialspace: bool = False,
-    lineterminator: str = "\r\n",
-    quoting: _QuotingType = 0,
-    strict: bool = False,
-) -> None: ...
-def unregister_dialect(name: str) -> None: ...
-def get_dialect(name: str) -> Dialect: ...
-def list_dialects() -> list[str]: ...
-def field_size_limit(new_limit: int = ...) -> int: ...

crates/red_knot/vendor/typeshed/stdlib/_ctypes.pyi

@@ -1,211 +0,0 @@
-import sys
-from _typeshed import ReadableBuffer, WriteableBuffer
-from abc import abstractmethod
-from collections.abc import Callable, Iterable, Iterator, Mapping, Sequence
-from ctypes import CDLL, ArgumentError as ArgumentError
-from typing import Any, ClassVar, Generic, TypeVar, overload
-from typing_extensions import Self, TypeAlias
-
-if sys.version_info >= (3, 9):
-    from types import GenericAlias
-
-_T = TypeVar("_T")
-_CT = TypeVar("_CT", bound=_CData)
-
-FUNCFLAG_CDECL: int
-FUNCFLAG_PYTHONAPI: int
-FUNCFLAG_USE_ERRNO: int
-FUNCFLAG_USE_LASTERROR: int
-RTLD_GLOBAL: int
-RTLD_LOCAL: int
-
-if sys.version_info >= (3, 11):
-    CTYPES_MAX_ARGCOUNT: int
-
-if sys.version_info >= (3, 12):
-    SIZEOF_TIME_T: int
-
-if sys.platform == "win32":
-    # Description, Source, HelpFile, HelpContext, scode
-    _COMError_Details: TypeAlias = tuple[str | None, str | None, str | None, int | None, int | None]
-
-    class COMError(Exception):
-        hresult: int
-        text: str | None
-        details: _COMError_Details
-
-        def __init__(self, hresult: int, text: str | None, details: _COMError_Details) -> None: ...
-
-    def CopyComPointer(src: _PointerLike, dst: _PointerLike | _CArgObject) -> int: ...
-
-    FUNCFLAG_HRESULT: int
-    FUNCFLAG_STDCALL: int
-
-    def FormatError(code: int = ...) -> str: ...
-    def get_last_error() -> int: ...
-    def set_last_error(value: int) -> int: ...
-    def LoadLibrary(name: str, load_flags: int = 0, /) -> int: ...
-    def FreeLibrary(handle: int, /) -> None: ...
-
-class _CDataMeta(type):
-    # By default mypy complains about the following two methods, because strictly speaking cls
-    # might not be a Type[_CT]. However this can never actually happen, because the only class that
-    # uses _CDataMeta as its metaclass is _CData. So it's safe to ignore the errors here.
-    def __mul__(cls: type[_CT], other: int) -> type[Array[_CT]]: ...  # type: ignore[misc]
-    def __rmul__(cls: type[_CT], other: int) -> type[Array[_CT]]: ...  # type: ignore[misc]
-
-class _CData(metaclass=_CDataMeta):
-    _b_base_: int
-    _b_needsfree_: bool
-    _objects: Mapping[Any, int] | None
-    # At runtime the following classmethods are available only on classes, not
-    # on instances. This can't be reflected properly in the type system:
-    #
-    # Structure.from_buffer(...)  # valid at runtime
-    # Structure(...).from_buffer(...)  # invalid at runtime
-    #
-
-    @classmethod
-    def from_buffer(cls, source: WriteableBuffer, offset: int = ...) -> Self: ...
-    @classmethod
-    def from_buffer_copy(cls, source: ReadableBuffer, offset: int = ...) -> Self: ...
-    @classmethod
-    def from_address(cls, address: int) -> Self: ...
-    @classmethod
-    def from_param(cls, obj: Any) -> Self | _CArgObject: ...
-    @classmethod
-    def in_dll(cls, library: CDLL, name: str) -> Self: ...
-    def __buffer__(self, flags: int, /) -> memoryview: ...
-    def __release_buffer__(self, buffer: memoryview, /) -> None: ...
-
-class _SimpleCData(_CData, Generic[_T]):
-    value: _T
-    # The TypeVar can be unsolved here,
-    # but we can't use overloads without creating many, many mypy false-positive errors
-    def __init__(self, value: _T = ...) -> None: ...  # pyright: ignore[reportInvalidTypeVarUse]
-
-class _CanCastTo(_CData): ...
-class _PointerLike(_CanCastTo): ...
-
-class _Pointer(_PointerLike, _CData, Generic[_CT]):
-    _type_: type[_CT]
-    contents: _CT
-    @overload
-    def __init__(self) -> None: ...
-    @overload
-    def __init__(self, arg: _CT) -> None: ...
-    @overload
-    def __getitem__(self, key: int, /) -> Any: ...
-    @overload
-    def __getitem__(self, key: slice, /) -> list[Any]: ...
-    def __setitem__(self, key: int, value: Any, /) -> None: ...
-
-def POINTER(type: type[_CT]) -> type[_Pointer[_CT]]: ...
-def pointer(arg: _CT, /) -> _Pointer[_CT]: ...
-
-class _CArgObject: ...
-
-def byref(obj: _CData, offset: int = ...) -> _CArgObject: ...
-
-_ECT: TypeAlias = Callable[[_CData | None, CFuncPtr, tuple[_CData, ...]], _CData]
-_PF: TypeAlias = tuple[int] | tuple[int, str | None] | tuple[int, str | None, Any]
-
-class CFuncPtr(_PointerLike, _CData):
-    restype: type[_CData] | Callable[[int], Any] | None
-    argtypes: Sequence[type[_CData]]
-    errcheck: _ECT
-    # Abstract attribute that must be defined on subclasses
-    _flags_: ClassVar[int]
-    @overload
-    def __init__(self) -> None: ...
-    @overload
-    def __init__(self, address: int, /) -> None: ...
-    @overload
-    def __init__(self, callable: Callable[..., Any], /) -> None: ...
-    @overload
-    def __init__(self, func_spec: tuple[str | int, CDLL], paramflags: tuple[_PF, ...] | None = ..., /) -> None: ...
-    if sys.platform == "win32":
-        @overload
-        def __init__(
-            self, vtbl_index: int, name: str, paramflags: tuple[_PF, ...] | None = ..., iid: _CData | None = ..., /
-        ) -> None: ...
-
-    def __call__(self, *args: Any, **kwargs: Any) -> Any: ...
-
-_GetT = TypeVar("_GetT")
-_SetT = TypeVar("_SetT")
-
-class _CField(Generic[_CT, _GetT, _SetT]):
-    offset: int
-    size: int
-    @overload
-    def __get__(self, instance: None, owner: type[Any] | None, /) -> Self: ...
-    @overload
-    def __get__(self, instance: Any, owner: type[Any] | None, /) -> _GetT: ...
-    def __set__(self, instance: Any, value: _SetT, /) -> None: ...
-
-class _StructUnionMeta(_CDataMeta):
-    _fields_: Sequence[tuple[str, type[_CData]] | tuple[str, type[_CData], int]]
-    _pack_: int
-    _anonymous_: Sequence[str]
-    def __getattr__(self, name: str) -> _CField[Any, Any, Any]: ...
-
-class _StructUnionBase(_CData, metaclass=_StructUnionMeta):
-    def __init__(self, *args: Any, **kw: Any) -> None: ...
-    def __getattr__(self, name: str) -> Any: ...
-    def __setattr__(self, name: str, value: Any) -> None: ...
-
-class Union(_StructUnionBase): ...
-class Structure(_StructUnionBase): ...
-
-class Array(_CData, Generic[_CT]):
-    @property
-    @abstractmethod
-    def _length_(self) -> int: ...
-    @_length_.setter
-    def _length_(self, value: int) -> None: ...
-    @property
-    @abstractmethod
-    def _type_(self) -> type[_CT]: ...
-    @_type_.setter
-    def _type_(self, value: type[_CT]) -> None: ...
-    # Note: only available if _CT == c_char
-    @property
-    def raw(self) -> bytes: ...
-    @raw.setter
-    def raw(self, value: ReadableBuffer) -> None: ...
-    value: Any  # Note: bytes if _CT == c_char, str if _CT == c_wchar, unavailable otherwise
-    # TODO These methods cannot be annotated correctly at the moment.
-    # All of these "Any"s stand for the array's element type, but it's not possible to use _CT
-    # here, because of a special feature of ctypes.
-    # By default, when accessing an element of an Array[_CT], the returned object has type _CT.
-    # However, when _CT is a "simple type" like c_int, ctypes automatically "unboxes" the object
-    # and converts it to the corresponding Python primitive. For example, when accessing an element
-    # of an Array[c_int], a Python int object is returned, not a c_int.
-    # This behavior does *not* apply to subclasses of "simple types".
-    # If MyInt is a subclass of c_int, then accessing an element of an Array[MyInt] returns
-    # a MyInt, not an int.
-    # This special behavior is not easy to model in a stub, so for now all places where
-    # the array element type would belong are annotated with Any instead.
-    def __init__(self, *args: Any) -> None: ...
-    @overload
-    def __getitem__(self, key: int, /) -> Any: ...
-    @overload
-    def __getitem__(self, key: slice, /) -> list[Any]: ...
-    @overload
-    def __setitem__(self, key: int, value: Any, /) -> None: ...
-    @overload
-    def __setitem__(self, key: slice, value: Iterable[Any], /) -> None: ...
-    def __iter__(self) -> Iterator[Any]: ...
-    # Can't inherit from Sized because the metaclass conflict between
-    # Sized and _CData prevents using _CDataMeta.
-    def __len__(self) -> int: ...
-    if sys.version_info >= (3, 9):
-        def __class_getitem__(cls, item: Any) -> GenericAlias: ...
-
-def addressof(obj: _CData) -> int: ...
-def alignment(obj_or_type: _CData | type[_CData]) -> int: ...
-def get_errno() -> int: ...
-def resize(obj: _CData, size: int) -> None: ...
-def set_errno(value: int) -> int: ...
-def sizeof(obj_or_type: _CData | type[_CData]) -> int: ...

crates/red_knot/vendor/typeshed/stdlib/_curses.pyi

@@ -1,566 +0,0 @@
-import sys
-from _typeshed import ReadOnlyBuffer, SupportsRead
-from typing import IO, Any, NamedTuple, final, overload
-from typing_extensions import TypeAlias
-
-# NOTE: This module is ordinarily only available on Unix, but the windows-curses
-# package makes it available on Windows as well with the same contents.
-
-# Handled by PyCurses_ConvertToChtype in _cursesmodule.c.
-_ChType: TypeAlias = str | bytes | int
-
-# ACS codes are only initialized after initscr is called
-ACS_BBSS: int
-ACS_BLOCK: int
-ACS_BOARD: int
-ACS_BSBS: int
-ACS_BSSB: int
-ACS_BSSS: int
-ACS_BTEE: int
-ACS_BULLET: int
-ACS_CKBOARD: int
-ACS_DARROW: int
-ACS_DEGREE: int
-ACS_DIAMOND: int
-ACS_GEQUAL: int
-ACS_HLINE: int
-ACS_LANTERN: int
-ACS_LARROW: int
-ACS_LEQUAL: int
-ACS_LLCORNER: int
-ACS_LRCORNER: int
-ACS_LTEE: int
-ACS_NEQUAL: int
-ACS_PI: int
-ACS_PLMINUS: int
-ACS_PLUS: int
-ACS_RARROW: int
-ACS_RTEE: int
-ACS_S1: int
-ACS_S3: int
-ACS_S7: int
-ACS_S9: int
-ACS_SBBS: int
-ACS_SBSB: int
-ACS_SBSS: int
-ACS_SSBB: int
-ACS_SSBS: int
-ACS_SSSB: int
-ACS_SSSS: int
-ACS_STERLING: int
-ACS_TTEE: int
-ACS_UARROW: int
-ACS_ULCORNER: int
-ACS_URCORNER: int
-ACS_VLINE: int
-ALL_MOUSE_EVENTS: int
-A_ALTCHARSET: int
-A_ATTRIBUTES: int
-A_BLINK: int
-A_BOLD: int
-A_CHARTEXT: int
-A_COLOR: int
-A_DIM: int
-A_HORIZONTAL: int
-A_INVIS: int
-if sys.platform != "darwin":
-    A_ITALIC: int
-A_LEFT: int
-A_LOW: int
-A_NORMAL: int
-A_PROTECT: int
-A_REVERSE: int
-A_RIGHT: int
-A_STANDOUT: int
-A_TOP: int
-A_UNDERLINE: int
-A_VERTICAL: int
-BUTTON1_CLICKED: int
-BUTTON1_DOUBLE_CLICKED: int
-BUTTON1_PRESSED: int
-BUTTON1_RELEASED: int
-BUTTON1_TRIPLE_CLICKED: int
-BUTTON2_CLICKED: int
-BUTTON2_DOUBLE_CLICKED: int
-BUTTON2_PRESSED: int
-BUTTON2_RELEASED: int
-BUTTON2_TRIPLE_CLICKED: int
-BUTTON3_CLICKED: int
-BUTTON3_DOUBLE_CLICKED: int
-BUTTON3_PRESSED: int
-BUTTON3_RELEASED: int
-BUTTON3_TRIPLE_CLICKED: int
-BUTTON4_CLICKED: int
-BUTTON4_DOUBLE_CLICKED: int
-BUTTON4_PRESSED: int
-BUTTON4_RELEASED: int
-BUTTON4_TRIPLE_CLICKED: int
-# Darwin ncurses doesn't provide BUTTON5_* constants
-if sys.version_info >= (3, 10) and sys.platform != "darwin":
-    BUTTON5_PRESSED: int
-    BUTTON5_RELEASED: int
-    BUTTON5_CLICKED: int
-    BUTTON5_DOUBLE_CLICKED: int
-    BUTTON5_TRIPLE_CLICKED: int
-BUTTON_ALT: int
-BUTTON_CTRL: int
-BUTTON_SHIFT: int
-COLOR_BLACK: int
-COLOR_BLUE: int
-COLOR_CYAN: int
-COLOR_GREEN: int
-COLOR_MAGENTA: int
-COLOR_RED: int
-COLOR_WHITE: int
-COLOR_YELLOW: int
-ERR: int
-KEY_A1: int
-KEY_A3: int
-KEY_B2: int
-KEY_BACKSPACE: int
-KEY_BEG: int
-KEY_BREAK: int
-KEY_BTAB: int
-KEY_C1: int
-KEY_C3: int
-KEY_CANCEL: int
-KEY_CATAB: int
-KEY_CLEAR: int
-KEY_CLOSE: int
-KEY_COMMAND: int
-KEY_COPY: int
-KEY_CREATE: int
-KEY_CTAB: int
-KEY_DC: int
-KEY_DL: int
-KEY_DOWN: int
-KEY_EIC: int
-KEY_END: int
-KEY_ENTER: int
-KEY_EOL: int
-KEY_EOS: int
-KEY_EXIT: int
-KEY_F0: int
-KEY_F1: int
-KEY_F10: int
-KEY_F11: int
-KEY_F12: int
-KEY_F13: int
-KEY_F14: int
-KEY_F15: int
-KEY_F16: int
-KEY_F17: int
-KEY_F18: int
-KEY_F19: int
-KEY_F2: int
-KEY_F20: int
-KEY_F21: int
-KEY_F22: int
-KEY_F23: int
-KEY_F24: int
-KEY_F25: int
-KEY_F26: int
-KEY_F27: int
-KEY_F28: int
-KEY_F29: int
-KEY_F3: int
-KEY_F30: int
-KEY_F31: int
-KEY_F32: int
-KEY_F33: int
-KEY_F34: int
-KEY_F35: int
-KEY_F36: int
-KEY_F37: int
-KEY_F38: int
-KEY_F39: int
-KEY_F4: int
-KEY_F40: int
-KEY_F41: int
-KEY_F42: int
-KEY_F43: int
-KEY_F44: int
-KEY_F45: int
-KEY_F46: int
-KEY_F47: int
-KEY_F48: int
-KEY_F49: int
-KEY_F5: int
-KEY_F50: int
-KEY_F51: int
-KEY_F52: int
-KEY_F53: int
-KEY_F54: int
-KEY_F55: int
-KEY_F56: int
-KEY_F57: int
-KEY_F58: int
-KEY_F59: int
-KEY_F6: int
-KEY_F60: int
-KEY_F61: int
-KEY_F62: int
-KEY_F63: int
-KEY_F7: int
-KEY_F8: int
-KEY_F9: int
-KEY_FIND: int
-KEY_HELP: int
-KEY_HOME: int
-KEY_IC: int
-KEY_IL: int
-KEY_LEFT: int
-KEY_LL: int
-KEY_MARK: int
-KEY_MAX: int
-KEY_MESSAGE: int
-KEY_MIN: int
-KEY_MOUSE: int
-KEY_MOVE: int
-KEY_NEXT: int
-KEY_NPAGE: int
-KEY_OPEN: int
-KEY_OPTIONS: int
-KEY_PPAGE: int
-KEY_PREVIOUS: int
-KEY_PRINT: int
-KEY_REDO: int
-KEY_REFERENCE: int
-KEY_REFRESH: int
-KEY_REPLACE: int
-KEY_RESET: int
-KEY_RESIZE: int
-KEY_RESTART: int
-KEY_RESUME: int
-KEY_RIGHT: int
-KEY_SAVE: int
-KEY_SBEG: int
-KEY_SCANCEL: int
-KEY_SCOMMAND: int
-KEY_SCOPY: int
-KEY_SCREATE: int
-KEY_SDC: int
-KEY_SDL: int
-KEY_SELECT: int
-KEY_SEND: int
-KEY_SEOL: int
-KEY_SEXIT: int
-KEY_SF: int
-KEY_SFIND: int
-KEY_SHELP: int
-KEY_SHOME: int
-KEY_SIC: int
-KEY_SLEFT: int
-KEY_SMESSAGE: int
-KEY_SMOVE: int
-KEY_SNEXT: int
-KEY_SOPTIONS: int
-KEY_SPREVIOUS: int
-KEY_SPRINT: int
-KEY_SR: int
-KEY_SREDO: int
-KEY_SREPLACE: int
-KEY_SRESET: int
-KEY_SRIGHT: int
-KEY_SRSUME: int
-KEY_SSAVE: int
-KEY_SSUSPEND: int
-KEY_STAB: int
-KEY_SUNDO: int
-KEY_SUSPEND: int
-KEY_UNDO: int
-KEY_UP: int
-OK: int
-REPORT_MOUSE_POSITION: int
-_C_API: Any
-version: bytes
-
-def baudrate() -> int: ...
-def beep() -> None: ...
-def can_change_color() -> bool: ...
-def cbreak(flag: bool = True, /) -> None: ...
-def color_content(color_number: int, /) -> tuple[int, int, int]: ...
-def color_pair(pair_number: int, /) -> int: ...
-def curs_set(visibility: int, /) -> int: ...
-def def_prog_mode() -> None: ...
-def def_shell_mode() -> None: ...
-def delay_output(ms: int, /) -> None: ...
-def doupdate() -> None: ...
-def echo(flag: bool = True, /) -> None: ...
-def endwin() -> None: ...
-def erasechar() -> bytes: ...
-def filter() -> None: ...
-def flash() -> None: ...
-def flushinp() -> None: ...
-
-if sys.version_info >= (3, 9):
-    def get_escdelay() -> int: ...
-    def get_tabsize() -> int: ...
-
-def getmouse() -> tuple[int, int, int, int, int]: ...
-def getsyx() -> tuple[int, int]: ...
-def getwin(file: SupportsRead[bytes], /) -> _CursesWindow: ...
-def halfdelay(tenths: int, /) -> None: ...
-def has_colors() -> bool: ...
-
-if sys.version_info >= (3, 10):
-    def has_extended_color_support() -> bool: ...
-
-def has_ic() -> bool: ...
-def has_il() -> bool: ...
-def has_key(key: int, /) -> bool: ...
-def init_color(color_number: int, r: int, g: int, b: int, /) -> None: ...
-def init_pair(pair_number: int, fg: int, bg: int, /) -> None: ...
-def initscr() -> _CursesWindow: ...
-def intrflush(flag: bool, /) -> None: ...
-def is_term_resized(nlines: int, ncols: int, /) -> bool: ...
-def isendwin() -> bool: ...
-def keyname(key: int, /) -> bytes: ...
-def killchar() -> bytes: ...
-def longname() -> bytes: ...
-def meta(yes: bool, /) -> None: ...
-def mouseinterval(interval: int, /) -> None: ...
-def mousemask(newmask: int, /) -> tuple[int, int]: ...
-def napms(ms: int, /) -> int: ...
-def newpad(nlines: int, ncols: int, /) -> _CursesWindow: ...
-def newwin(nlines: int, ncols: int, begin_y: int = ..., begin_x: int = ..., /) -> _CursesWindow: ...
-def nl(flag: bool = True, /) -> None: ...
-def nocbreak() -> None: ...
-def noecho() -> None: ...
-def nonl() -> None: ...
-def noqiflush() -> None: ...
-def noraw() -> None: ...
-def pair_content(pair_number: int, /) -> tuple[int, int]: ...
-def pair_number(attr: int, /) -> int: ...
-def putp(string: ReadOnlyBuffer, /) -> None: ...
-def qiflush(flag: bool = True, /) -> None: ...
-def raw(flag: bool = True, /) -> None: ...
-def reset_prog_mode() -> None: ...
-def reset_shell_mode() -> None: ...
-def resetty() -> None: ...
-def resize_term(nlines: int, ncols: int, /) -> None: ...
-def resizeterm(nlines: int, ncols: int, /) -> None: ...
-def savetty() -> None: ...
-
-if sys.version_info >= (3, 9):
-    def set_escdelay(ms: int, /) -> None: ...
-    def set_tabsize(size: int, /) -> None: ...
-
-def setsyx(y: int, x: int, /) -> None: ...
-def setupterm(term: str | None = None, fd: int = -1) -> None: ...
-def start_color() -> None: ...
-def termattrs() -> int: ...
-def termname() -> bytes: ...
-def tigetflag(capname: str, /) -> int: ...
-def tigetnum(capname: str, /) -> int: ...
-def tigetstr(capname: str, /) -> bytes | None: ...
-def tparm(
-    str: ReadOnlyBuffer,
-    i1: int = 0,
-    i2: int = 0,
-    i3: int = 0,
-    i4: int = 0,
-    i5: int = 0,
-    i6: int = 0,
-    i7: int = 0,
-    i8: int = 0,
-    i9: int = 0,
-    /,
-) -> bytes: ...
-def typeahead(fd: int, /) -> None: ...
-def unctrl(ch: _ChType, /) -> bytes: ...
-
-if sys.version_info < (3, 12) or sys.platform != "darwin":
-    # The support for macos was dropped in 3.12
-    def unget_wch(ch: int | str, /) -> None: ...
-
-def ungetch(ch: _ChType, /) -> None: ...
-def ungetmouse(id: int, x: int, y: int, z: int, bstate: int, /) -> None: ...
-def update_lines_cols() -> None: ...
-def use_default_colors() -> None: ...
-def use_env(flag: bool, /) -> None: ...
-
-class error(Exception): ...
-
-@final
-class _CursesWindow:
-    encoding: str
-    @overload
-    def addch(self, ch: _ChType, attr: int = ...) -> None: ...
-    @overload
-    def addch(self, y: int, x: int, ch: _ChType, attr: int = ...) -> None: ...
-    @overload
-    def addnstr(self, str: str, n: int, attr: int = ...) -> None: ...
-    @overload
-    def addnstr(self, y: int, x: int, str: str, n: int, attr: int = ...) -> None: ...
-    @overload
-    def addstr(self, str: str, attr: int = ...) -> None: ...
-    @overload
-    def addstr(self, y: int, x: int, str: str, attr: int = ...) -> None: ...
-    def attroff(self, attr: int, /) -> None: ...
-    def attron(self, attr: int, /) -> None: ...
-    def attrset(self, attr: int, /) -> None: ...
-    def bkgd(self, ch: _ChType, attr: int = ..., /) -> None: ...
-    def bkgdset(self, ch: _ChType, attr: int = ..., /) -> None: ...
-    def border(
-        self,
-        ls: _ChType = ...,
-        rs: _ChType = ...,
-        ts: _ChType = ...,
-        bs: _ChType = ...,
-        tl: _ChType = ...,
-        tr: _ChType = ...,
-        bl: _ChType = ...,
-        br: _ChType = ...,
-    ) -> None: ...
-    @overload
-    def box(self) -> None: ...
-    @overload
-    def box(self, vertch: _ChType = ..., horch: _ChType = ...) -> None: ...
-    @overload
-    def chgat(self, attr: int) -> None: ...
-    @overload
-    def chgat(self, num: int, attr: int) -> None: ...
-    @overload
-    def chgat(self, y: int, x: int, attr: int) -> None: ...
-    @overload
-    def chgat(self, y: int, x: int, num: int, attr: int) -> None: ...
-    def clear(self) -> None: ...
-    def clearok(self, yes: int) -> None: ...
-    def clrtobot(self) -> None: ...
-    def clrtoeol(self) -> None: ...
-    def cursyncup(self) -> None: ...
-    @overload
-    def delch(self) -> None: ...
-    @overload
-    def delch(self, y: int, x: int) -> None: ...
-    def deleteln(self) -> None: ...
-    @overload
-    def derwin(self, begin_y: int, begin_x: int) -> _CursesWindow: ...
-    @overload
-    def derwin(self, nlines: int, ncols: int, begin_y: int, begin_x: int) -> _CursesWindow: ...
-    def echochar(self, ch: _ChType, attr: int = ..., /) -> None: ...
-    def enclose(self, y: int, x: int, /) -> bool: ...
-    def erase(self) -> None: ...
-    def getbegyx(self) -> tuple[int, int]: ...
-    def getbkgd(self) -> tuple[int, int]: ...
-    @overload
-    def getch(self) -> int: ...
-    @overload
-    def getch(self, y: int, x: int) -> int: ...
-    if sys.version_info < (3, 12) or sys.platform != "darwin":
-        # The support for macos was dropped in 3.12
-        @overload
-        def get_wch(self) -> int | str: ...
-        @overload
-        def get_wch(self, y: int, x: int) -> int | str: ...
-
-    @overload
-    def getkey(self) -> str: ...
-    @overload
-    def getkey(self, y: int, x: int) -> str: ...
-    def getmaxyx(self) -> tuple[int, int]: ...
-    def getparyx(self) -> tuple[int, int]: ...
-    @overload
-    def getstr(self) -> bytes: ...
-    @overload
-    def getstr(self, n: int) -> bytes: ...
-    @overload
-    def getstr(self, y: int, x: int) -> bytes: ...
-    @overload
-    def getstr(self, y: int, x: int, n: int) -> bytes: ...
-    def getyx(self) -> tuple[int, int]: ...
-    @overload
-    def hline(self, ch: _ChType, n: int) -> None: ...
-    @overload
-    def hline(self, y: int, x: int, ch: _ChType, n: int) -> None: ...
-    def idcok(self, flag: bool) -> None: ...
-    def idlok(self, yes: bool) -> None: ...
-    def immedok(self, flag: bool) -> None: ...
-    @overload
-    def inch(self) -> int: ...
-    @overload
-    def inch(self, y: int, x: int) -> int: ...
-    @overload
-    def insch(self, ch: _ChType, attr: int = ...) -> None: ...
-    @overload
-    def insch(self, y: int, x: int, ch: _ChType, attr: int = ...) -> None: ...
-    def insdelln(self, nlines: int) -> None: ...
-    def insertln(self) -> None: ...
-    @overload
-    def insnstr(self, str: str, n: int, attr: int = ...) -> None: ...
-    @overload
-    def insnstr(self, y: int, x: int, str: str, n: int, attr: int = ...) -> None: ...
-    @overload
-    def insstr(self, str: str, attr: int = ...) -> None: ...
-    @overload
-    def insstr(self, y: int, x: int, str: str, attr: int = ...) -> None: ...
-    @overload
-    def instr(self, n: int = ...) -> bytes: ...
-    @overload
-    def instr(self, y: int, x: int, n: int = ...) -> bytes: ...
-    def is_linetouched(self, line: int, /) -> bool: ...
-    def is_wintouched(self) -> bool: ...
-    def keypad(self, yes: bool) -> None: ...
-    def leaveok(self, yes: bool) -> None: ...
-    def move(self, new_y: int, new_x: int) -> None: ...
-    def mvderwin(self, y: int, x: int) -> None: ...
-    def mvwin(self, new_y: int, new_x: int) -> None: ...
-    def nodelay(self, yes: bool) -> None: ...
-    def notimeout(self, yes: bool) -> None: ...
-    @overload
-    def noutrefresh(self) -> None: ...
-    @overload
-    def noutrefresh(self, pminrow: int, pmincol: int, sminrow: int, smincol: int, smaxrow: int, smaxcol: int) -> None: ...
-    @overload
-    def overlay(self, destwin: _CursesWindow) -> None: ...
-    @overload
-    def overlay(
-        self, destwin: _CursesWindow, sminrow: int, smincol: int, dminrow: int, dmincol: int, dmaxrow: int, dmaxcol: int
-    ) -> None: ...
-    @overload
-    def overwrite(self, destwin: _CursesWindow) -> None: ...
-    @overload
-    def overwrite(
-        self, destwin: _CursesWindow, sminrow: int, smincol: int, dminrow: int, dmincol: int, dmaxrow: int, dmaxcol: int
-    ) -> None: ...
-    def putwin(self, file: IO[Any], /) -> None: ...
-    def redrawln(self, beg: int, num: int, /) -> None: ...
-    def redrawwin(self) -> None: ...
-    @overload
-    def refresh(self) -> None: ...
-    @overload
-    def refresh(self, pminrow: int, pmincol: int, sminrow: int, smincol: int, smaxrow: int, smaxcol: int) -> None: ...
-    def resize(self, nlines: int, ncols: int) -> None: ...
-    def scroll(self, lines: int = ...) -> None: ...
-    def scrollok(self, flag: bool) -> None: ...
-    def setscrreg(self, top: int, bottom: int, /) -> None: ...
-    def standend(self) -> None: ...
-    def standout(self) -> None: ...
-    @overload
-    def subpad(self, begin_y: int, begin_x: int) -> _CursesWindow: ...
-    @overload
-    def subpad(self, nlines: int, ncols: int, begin_y: int, begin_x: int) -> _CursesWindow: ...
-    @overload
-    def subwin(self, begin_y: int, begin_x: int) -> _CursesWindow: ...
-    @overload
-    def subwin(self, nlines: int, ncols: int, begin_y: int, begin_x: int) -> _CursesWindow: ...
-    def syncdown(self) -> None: ...
-    def syncok(self, flag: bool) -> None: ...
-    def syncup(self) -> None: ...
-    def timeout(self, delay: int) -> None: ...
-    def touchline(self, start: int, count: int, changed: bool = ...) -> None: ...
-    def touchwin(self) -> None: ...
-    def untouchwin(self) -> None: ...
-    @overload
-    def vline(self, ch: _ChType, n: int) -> None: ...
-    @overload
-    def vline(self, y: int, x: int, ch: _ChType, n: int) -> None: ...
-
-class _ncurses_version(NamedTuple):
-    major: int
-    minor: int
-    patch: int
-
-ncurses_version: _ncurses_version
-window = _CursesWindow  # undocumented

crates/red_knot/vendor/typeshed/stdlib/_decimal.pyi

@@ -1,281 +0,0 @@
-import numbers
-import sys
-from collections.abc import Container, Sequence
-from types import TracebackType
-from typing import Any, ClassVar, Final, Literal, NamedTuple, overload
-from typing_extensions import Self, TypeAlias
-
-_Decimal: TypeAlias = Decimal | int
-_DecimalNew: TypeAlias = Decimal | float | str | tuple[int, Sequence[int], int]
-_ComparableNum: TypeAlias = Decimal | float | numbers.Rational
-
-__version__: Final[str]
-__libmpdec_version__: Final[str]
-
-class DecimalTuple(NamedTuple):
-    sign: int
-    digits: tuple[int, ...]
-    exponent: int | Literal["n", "N", "F"]
-
-ROUND_DOWN: str
-ROUND_HALF_UP: str
-ROUND_HALF_EVEN: str
-ROUND_CEILING: str
-ROUND_FLOOR: str
-ROUND_UP: str
-ROUND_HALF_DOWN: str
-ROUND_05UP: str
-HAVE_CONTEXTVAR: bool
-HAVE_THREADS: bool
-MAX_EMAX: int
-MAX_PREC: int
-MIN_EMIN: int
-MIN_ETINY: int
-
-class DecimalException(ArithmeticError): ...
-class Clamped(DecimalException): ...
-class InvalidOperation(DecimalException): ...
-class ConversionSyntax(InvalidOperation): ...
-class DivisionByZero(DecimalException, ZeroDivisionError): ...
-class DivisionImpossible(InvalidOperation): ...
-class DivisionUndefined(InvalidOperation, ZeroDivisionError): ...
-class Inexact(DecimalException): ...
-class InvalidContext(InvalidOperation): ...
-class Rounded(DecimalException): ...
-class Subnormal(DecimalException): ...
-class Overflow(Inexact, Rounded): ...
-class Underflow(Inexact, Rounded, Subnormal): ...
-class FloatOperation(DecimalException, TypeError): ...
-
-def setcontext(context: Context, /) -> None: ...
-def getcontext() -> Context: ...
-
-if sys.version_info >= (3, 11):
-    def localcontext(
-        ctx: Context | None = None,
-        *,
-        prec: int | None = ...,
-        rounding: str | None = ...,
-        Emin: int | None = ...,
-        Emax: int | None = ...,
-        capitals: int | None = ...,
-        clamp: int | None = ...,
-        traps: dict[_TrapType, bool] | None = ...,
-        flags: dict[_TrapType, bool] | None = ...,
-    ) -> _ContextManager: ...
-
-else:
-    def localcontext(ctx: Context | None = None) -> _ContextManager: ...
-
-class Decimal:
-    def __new__(cls, value: _DecimalNew = ..., context: Context | None = ...) -> Self: ...
-    @classmethod
-    def from_float(cls, f: float, /) -> Self: ...
-    def __bool__(self) -> bool: ...
-    def compare(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def __hash__(self) -> int: ...
-    def as_tuple(self) -> DecimalTuple: ...
-    def as_integer_ratio(self) -> tuple[int, int]: ...
-    def to_eng_string(self, context: Context | None = None) -> str: ...
-    def __abs__(self) -> Decimal: ...
-    def __add__(self, value: _Decimal, /) -> Decimal: ...
-    def __divmod__(self, value: _Decimal, /) -> tuple[Decimal, Decimal]: ...
-    def __eq__(self, value: object, /) -> bool: ...
-    def __floordiv__(self, value: _Decimal, /) -> Decimal: ...
-    def __ge__(self, value: _ComparableNum, /) -> bool: ...
-    def __gt__(self, value: _ComparableNum, /) -> bool: ...
-    def __le__(self, value: _ComparableNum, /) -> bool: ...
-    def __lt__(self, value: _ComparableNum, /) -> bool: ...
-    def __mod__(self, value: _Decimal, /) -> Decimal: ...
-    def __mul__(self, value: _Decimal, /) -> Decimal: ...
-    def __neg__(self) -> Decimal: ...
-    def __pos__(self) -> Decimal: ...
-    def __pow__(self, value: _Decimal, mod: _Decimal | None = None, /) -> Decimal: ...
-    def __radd__(self, value: _Decimal, /) -> Decimal: ...
-    def __rdivmod__(self, value: _Decimal, /) -> tuple[Decimal, Decimal]: ...
-    def __rfloordiv__(self, value: _Decimal, /) -> Decimal: ...
-    def __rmod__(self, value: _Decimal, /) -> Decimal: ...
-    def __rmul__(self, value: _Decimal, /) -> Decimal: ...
-    def __rsub__(self, value: _Decimal, /) -> Decimal: ...
-    def __rtruediv__(self, value: _Decimal, /) -> Decimal: ...
-    def __sub__(self, value: _Decimal, /) -> Decimal: ...
-    def __truediv__(self, value: _Decimal, /) -> Decimal: ...
-    def remainder_near(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def __float__(self) -> float: ...
-    def __int__(self) -> int: ...
-    def __trunc__(self) -> int: ...
-    @property
-    def real(self) -> Decimal: ...
-    @property
-    def imag(self) -> Decimal: ...
-    def conjugate(self) -> Decimal: ...
-    def __complex__(self) -> complex: ...
-    @overload
-    def __round__(self) -> int: ...
-    @overload
-    def __round__(self, ndigits: int, /) -> Decimal: ...
-    def __floor__(self) -> int: ...
-    def __ceil__(self) -> int: ...
-    def fma(self, other: _Decimal, third: _Decimal, context: Context | None = None) -> Decimal: ...
-    def __rpow__(self, value: _Decimal, mod: Context | None = None, /) -> Decimal: ...
-    def normalize(self, context: Context | None = None) -> Decimal: ...
-    def quantize(self, exp: _Decimal, rounding: str | None = None, context: Context | None = None) -> Decimal: ...
-    def same_quantum(self, other: _Decimal, context: Context | None = None) -> bool: ...
-    def to_integral_exact(self, rounding: str | None = None, context: Context | None = None) -> Decimal: ...
-    def to_integral_value(self, rounding: str | None = None, context: Context | None = None) -> Decimal: ...
-    def to_integral(self, rounding: str | None = None, context: Context | None = None) -> Decimal: ...
-    def sqrt(self, context: Context | None = None) -> Decimal: ...
-    def max(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def min(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def adjusted(self) -> int: ...
-    def canonical(self) -> Decimal: ...
-    def compare_signal(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def compare_total(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def compare_total_mag(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def copy_abs(self) -> Decimal: ...
-    def copy_negate(self) -> Decimal: ...
-    def copy_sign(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def exp(self, context: Context | None = None) -> Decimal: ...
-    def is_canonical(self) -> bool: ...
-    def is_finite(self) -> bool: ...
-    def is_infinite(self) -> bool: ...
-    def is_nan(self) -> bool: ...
-    def is_normal(self, context: Context | None = None) -> bool: ...
-    def is_qnan(self) -> bool: ...
-    def is_signed(self) -> bool: ...
-    def is_snan(self) -> bool: ...
-    def is_subnormal(self, context: Context | None = None) -> bool: ...
-    def is_zero(self) -> bool: ...
-    def ln(self, context: Context | None = None) -> Decimal: ...
-    def log10(self, context: Context | None = None) -> Decimal: ...
-    def logb(self, context: Context | None = None) -> Decimal: ...
-    def logical_and(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def logical_invert(self, context: Context | None = None) -> Decimal: ...
-    def logical_or(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def logical_xor(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def max_mag(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def min_mag(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def next_minus(self, context: Context | None = None) -> Decimal: ...
-    def next_plus(self, context: Context | None = None) -> Decimal: ...
-    def next_toward(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def number_class(self, context: Context | None = None) -> str: ...
-    def radix(self) -> Decimal: ...
-    def rotate(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def scaleb(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def shift(self, other: _Decimal, context: Context | None = None) -> Decimal: ...
-    def __reduce__(self) -> tuple[type[Self], tuple[str]]: ...
-    def __copy__(self) -> Self: ...
-    def __deepcopy__(self, memo: Any, /) -> Self: ...
-    def __format__(self, specifier: str, context: Context | None = ..., /) -> str: ...
-
-class _ContextManager:
-    new_context: Context
-    saved_context: Context
-    def __init__(self, new_context: Context) -> None: ...
-    def __enter__(self) -> Context: ...
-    def __exit__(self, t: type[BaseException] | None, v: BaseException | None, tb: TracebackType | None) -> None: ...
-
-_TrapType: TypeAlias = type[DecimalException]
-
-class Context:
-    # TODO: Context doesn't allow you to delete *any* attributes from instances of the class at runtime,
-    # even settable attributes like `prec` and `rounding`,
-    # but that's inexpressable in the stub.
-    # Type checkers either ignore it or misinterpret it
-    # if you add a `def __delattr__(self, name: str, /) -> NoReturn` method to the stub
-    prec: int
-    rounding: str
-    Emin: int
-    Emax: int
-    capitals: int
-    clamp: int
-    traps: dict[_TrapType, bool]
-    flags: dict[_TrapType, bool]
-    def __init__(
-        self,
-        prec: int | None = ...,
-        rounding: str | None = ...,
-        Emin: int | None = ...,
-        Emax: int | None = ...,
-        capitals: int | None = ...,
-        clamp: int | None = ...,
-        flags: None | dict[_TrapType, bool] | Container[_TrapType] = ...,
-        traps: None | dict[_TrapType, bool] | Container[_TrapType] = ...,
-        _ignored_flags: list[_TrapType] | None = ...,
-    ) -> None: ...
-    def __reduce__(self) -> tuple[type[Self], tuple[Any, ...]]: ...
-    def clear_flags(self) -> None: ...
-    def clear_traps(self) -> None: ...
-    def copy(self) -> Context: ...
-    def __copy__(self) -> Context: ...
-    # see https://github.com/python/cpython/issues/94107
-    __hash__: ClassVar[None]  # type: ignore[assignment]
-    def Etiny(self) -> int: ...
-    def Etop(self) -> int: ...
-    def create_decimal(self, num: _DecimalNew = "0", /) -> Decimal: ...
-    def create_decimal_from_float(self, f: float, /) -> Decimal: ...
-    def abs(self, x: _Decimal, /) -> Decimal: ...
-    def add(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def canonical(self, x: Decimal, /) -> Decimal: ...
-    def compare(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def compare_signal(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def compare_total(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def compare_total_mag(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def copy_abs(self, x: _Decimal, /) -> Decimal: ...
-    def copy_decimal(self, x: _Decimal, /) -> Decimal: ...
-    def copy_negate(self, x: _Decimal, /) -> Decimal: ...
-    def copy_sign(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def divide(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def divide_int(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def divmod(self, x: _Decimal, y: _Decimal, /) -> tuple[Decimal, Decimal]: ...
-    def exp(self, x: _Decimal, /) -> Decimal: ...
-    def fma(self, x: _Decimal, y: _Decimal, z: _Decimal, /) -> Decimal: ...
-    def is_canonical(self, x: _Decimal, /) -> bool: ...
-    def is_finite(self, x: _Decimal, /) -> bool: ...
-    def is_infinite(self, x: _Decimal, /) -> bool: ...
-    def is_nan(self, x: _Decimal, /) -> bool: ...
-    def is_normal(self, x: _Decimal, /) -> bool: ...
-    def is_qnan(self, x: _Decimal, /) -> bool: ...
-    def is_signed(self, x: _Decimal, /) -> bool: ...
-    def is_snan(self, x: _Decimal, /) -> bool: ...
-    def is_subnormal(self, x: _Decimal, /) -> bool: ...
-    def is_zero(self, x: _Decimal, /) -> bool: ...
-    def ln(self, x: _Decimal, /) -> Decimal: ...
-    def log10(self, x: _Decimal, /) -> Decimal: ...
-    def logb(self, x: _Decimal, /) -> Decimal: ...
-    def logical_and(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def logical_invert(self, x: _Decimal, /) -> Decimal: ...
-    def logical_or(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def logical_xor(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def max(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def max_mag(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def min(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def min_mag(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def minus(self, x: _Decimal, /) -> Decimal: ...
-    def multiply(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def next_minus(self, x: _Decimal, /) -> Decimal: ...
-    def next_plus(self, x: _Decimal, /) -> Decimal: ...
-    def next_toward(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def normalize(self, x: _Decimal, /) -> Decimal: ...
-    def number_class(self, x: _Decimal, /) -> str: ...
-    def plus(self, x: _Decimal, /) -> Decimal: ...
-    def power(self, a: _Decimal, b: _Decimal, modulo: _Decimal | None = None) -> Decimal: ...
-    def quantize(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def radix(self) -> Decimal: ...
-    def remainder(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def remainder_near(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def rotate(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def same_quantum(self, x: _Decimal, y: _Decimal, /) -> bool: ...
-    def scaleb(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def shift(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def sqrt(self, x: _Decimal, /) -> Decimal: ...
-    def subtract(self, x: _Decimal, y: _Decimal, /) -> Decimal: ...
-    def to_eng_string(self, x: _Decimal, /) -> str: ...
-    def to_sci_string(self, x: _Decimal, /) -> str: ...
-    def to_integral_exact(self, x: _Decimal, /) -> Decimal: ...
-    def to_integral_value(self, x: _Decimal, /) -> Decimal: ...
-    def to_integral(self, x: _Decimal, /) -> Decimal: ...
-
-DefaultContext: Context
-BasicContext: Context
-ExtendedContext: Context

crates/red_knot/vendor/typeshed/stdlib/_dummy_thread.pyi

@@ -1,33 +0,0 @@
-from collections.abc import Callable
-from types import TracebackType
-from typing import Any, NoReturn, overload
-from typing_extensions import TypeVarTuple, Unpack
-
-__all__ = ["error", "start_new_thread", "exit", "get_ident", "allocate_lock", "interrupt_main", "LockType", "RLock"]
-
-_Ts = TypeVarTuple("_Ts")
-
-TIMEOUT_MAX: int
-error = RuntimeError
-
-@overload
-def start_new_thread(function: Callable[[Unpack[_Ts]], object], args: tuple[Unpack[_Ts]]) -> None: ...
-@overload
-def start_new_thread(function: Callable[..., object], args: tuple[Any, ...], kwargs: dict[str, Any]) -> None: ...
-def exit() -> NoReturn: ...
-def get_ident() -> int: ...
-def allocate_lock() -> LockType: ...
-def stack_size(size: int | None = None) -> int: ...
-
-class LockType:
-    locked_status: bool
-    def acquire(self, waitflag: bool | None = None, timeout: int = -1) -> bool: ...
-    def __enter__(self, waitflag: bool | None = None, timeout: int = -1) -> bool: ...
-    def __exit__(self, typ: type[BaseException] | None, val: BaseException | None, tb: TracebackType | None) -> None: ...
-    def release(self) -> bool: ...
-    def locked(self) -> bool: ...
-
-class RLock(LockType):
-    def release(self) -> None: ...  # type: ignore[override]
-
-def interrupt_main() -> None: ...

crates/red_knot/vendor/typeshed/stdlib/_dummy_threading.pyi

@@ -1,164 +0,0 @@
-import sys
-from _thread import _excepthook, _ExceptHookArgs
-from _typeshed import ProfileFunction, TraceFunction
-from collections.abc import Callable, Iterable, Mapping
-from types import TracebackType
-from typing import Any, TypeVar
-
-_T = TypeVar("_T")
-
-__all__ = [
-    "get_ident",
-    "active_count",
-    "Condition",
-    "current_thread",
-    "enumerate",
-    "main_thread",
-    "TIMEOUT_MAX",
-    "Event",
-    "Lock",
-    "RLock",
-    "Semaphore",
-    "BoundedSemaphore",
-    "Thread",
-    "Barrier",
-    "BrokenBarrierError",
-    "Timer",
-    "ThreadError",
-    "setprofile",
-    "settrace",
-    "local",
-    "stack_size",
-    "ExceptHookArgs",
-    "excepthook",
-]
-
-def active_count() -> int: ...
-def current_thread() -> Thread: ...
-def currentThread() -> Thread: ...
-def get_ident() -> int: ...
-def enumerate() -> list[Thread]: ...
-def main_thread() -> Thread: ...
-def settrace(func: TraceFunction) -> None: ...
-def setprofile(func: ProfileFunction | None) -> None: ...
-def stack_size(size: int | None = None) -> int: ...
-
-TIMEOUT_MAX: float
-
-class ThreadError(Exception): ...
-
-class local:
-    def __getattribute__(self, name: str) -> Any: ...
-    def __setattr__(self, name: str, value: Any) -> None: ...
-    def __delattr__(self, name: str) -> None: ...
-
-class Thread:
-    name: str
-    daemon: bool
-    @property
-    def ident(self) -> int | None: ...
-    def __init__(
-        self,
-        group: None = None,
-        target: Callable[..., object] | None = None,
-        name: str | None = None,
-        args: Iterable[Any] = (),
-        kwargs: Mapping[str, Any] | None = None,
-        *,
-        daemon: bool | None = None,
-    ) -> None: ...
-    def start(self) -> None: ...
-    def run(self) -> None: ...
-    def join(self, timeout: float | None = None) -> None: ...
-    def getName(self) -> str: ...
-    def setName(self, name: str) -> None: ...
-    @property
-    def native_id(self) -> int | None: ...  # only available on some platforms
-    def is_alive(self) -> bool: ...
-    if sys.version_info < (3, 9):
-        def isAlive(self) -> bool: ...
-
-    def isDaemon(self) -> bool: ...
-    def setDaemon(self, daemonic: bool) -> None: ...
-
-class _DummyThread(Thread): ...
-
-class Lock:
-    def __enter__(self) -> bool: ...
-    def __exit__(
-        self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
-    ) -> bool | None: ...
-    def acquire(self, blocking: bool = ..., timeout: float = ...) -> bool: ...
-    def release(self) -> None: ...
-    def locked(self) -> bool: ...
-
-class _RLock:
-    def __enter__(self) -> bool: ...
-    def __exit__(
-        self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
-    ) -> bool | None: ...
-    def acquire(self, blocking: bool = True, timeout: float = -1) -> bool: ...
-    def release(self) -> None: ...
-
-RLock = _RLock
-
-class Condition:
-    def __init__(self, lock: Lock | _RLock | None = None) -> None: ...
-    def __enter__(self) -> bool: ...
-    def __exit__(
-        self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
-    ) -> bool | None: ...
-    def acquire(self, blocking: bool = ..., timeout: float = ...) -> bool: ...
-    def release(self) -> None: ...
-    def wait(self, timeout: float | None = None) -> bool: ...
-    def wait_for(self, predicate: Callable[[], _T], timeout: float | None = None) -> _T: ...
-    def notify(self, n: int = 1) -> None: ...
-    def notify_all(self) -> None: ...
-    def notifyAll(self) -> None: ...
-
-class Semaphore:
-    def __init__(self, value: int = 1) -> None: ...
-    def __exit__(
-        self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
-    ) -> bool | None: ...
-    def acquire(self, blocking: bool = True, timeout: float | None = None) -> bool: ...
-    def __enter__(self, blocking: bool = True, timeout: float | None = None) -> bool: ...
-    if sys.version_info >= (3, 9):
-        def release(self, n: int = ...) -> None: ...
-    else:
-        def release(self) -> None: ...
-
-class BoundedSemaphore(Semaphore): ...
-
-class Event:
-    def is_set(self) -> bool: ...
-    def set(self) -> None: ...
-    def clear(self) -> None: ...
-    def wait(self, timeout: float | None = None) -> bool: ...
-
-excepthook = _excepthook
-ExceptHookArgs = _ExceptHookArgs
-
-class Timer(Thread):
-    def __init__(
-        self,
-        interval: float,
-        function: Callable[..., object],
-        args: Iterable[Any] | None = None,
-        kwargs: Mapping[str, Any] | None = None,
-    ) -> None: ...
-    def cancel(self) -> None: ...
-
-class Barrier:
-    @property
-    def parties(self) -> int: ...
-    @property
-    def n_waiting(self) -> int: ...
-    @property
-    def broken(self) -> bool: ...
-    def __init__(self, parties: int, action: Callable[[], None] | None = None, timeout: float | None = None) -> None: ...
-    def wait(self, timeout: float | None = None) -> int: ...
-    def reset(self) -> None: ...
-    def abort(self) -> None: ...
-
-class BrokenBarrierError(RuntimeError): ...

crates/red_knot/vendor/typeshed/stdlib/_heapq.pyi

@@ -1,11 +0,0 @@
-from typing import Any, Final, TypeVar
-
-_T = TypeVar("_T")
-
-__about__: Final[str]
-
-def heapify(heap: list[Any], /) -> None: ...
-def heappop(heap: list[_T], /) -> _T: ...
-def heappush(heap: list[_T], item: _T, /) -> None: ...
-def heappushpop(heap: list[_T], item: _T, /) -> _T: ...
-def heapreplace(heap: list[_T], item: _T, /) -> _T: ...

crates/red_knot/vendor/typeshed/stdlib/_imp.pyi

@@ -1,28 +0,0 @@
-import sys
-import types
-from _typeshed import ReadableBuffer
-from importlib.machinery import ModuleSpec
-from typing import Any
-
-check_hash_based_pycs: str
-
-def source_hash(key: int, source: ReadableBuffer) -> bytes: ...
-def create_builtin(spec: ModuleSpec, /) -> types.ModuleType: ...
-def create_dynamic(spec: ModuleSpec, file: Any = None, /) -> types.ModuleType: ...
-def acquire_lock() -> None: ...
-def exec_builtin(mod: types.ModuleType, /) -> int: ...
-def exec_dynamic(mod: types.ModuleType, /) -> int: ...
-def extension_suffixes() -> list[str]: ...
-def init_frozen(name: str, /) -> types.ModuleType: ...
-def is_builtin(name: str, /) -> int: ...
-def is_frozen(name: str, /) -> bool: ...
-def is_frozen_package(name: str, /) -> bool: ...
-def lock_held() -> bool: ...
-def release_lock() -> None: ...
-
-if sys.version_info >= (3, 11):
-    def find_frozen(name: str, /, *, withdata: bool = False) -> tuple[memoryview | None, bool, str | None] | None: ...
-    def get_frozen_object(name: str, data: ReadableBuffer | None = None, /) -> types.CodeType: ...
-
-else:
-    def get_frozen_object(name: str, /) -> types.CodeType: ...

crates/red_knot/vendor/typeshed/stdlib/_json.pyi

@@ -1,49 +0,0 @@
-from collections.abc import Callable
-from typing import Any, final
-
-@final
-class make_encoder:
-    @property
-    def sort_keys(self) -> bool: ...
-    @property
-    def skipkeys(self) -> bool: ...
-    @property
-    def key_separator(self) -> str: ...
-    @property
-    def indent(self) -> int | None: ...
-    @property
-    def markers(self) -> dict[int, Any] | None: ...
-    @property
-    def default(self) -> Callable[[Any], Any]: ...
-    @property
-    def encoder(self) -> Callable[[str], str]: ...
-    @property
-    def item_separator(self) -> str: ...
-    def __init__(
-        self,
-        markers: dict[int, Any] | None,
-        default: Callable[[Any], Any],
-        encoder: Callable[[str], str],
-        indent: int | None,
-        key_separator: str,
-        item_separator: str,
-        sort_keys: bool,
-        skipkeys: bool,
-        allow_nan: bool,
-    ) -> None: ...
-    def __call__(self, obj: object, _current_indent_level: int) -> Any: ...
-
-@final
-class make_scanner:
-    object_hook: Any
-    object_pairs_hook: Any
-    parse_int: Any
-    parse_constant: Any
-    parse_float: Any
-    strict: bool
-    # TODO: 'context' needs the attrs above (ducktype), but not __call__.
-    def __init__(self, context: make_scanner) -> None: ...
-    def __call__(self, string: str, index: int) -> tuple[Any, int]: ...
-
-def encode_basestring_ascii(s: str) -> str: ...
-def scanstring(string: str, end: int, strict: bool = ...) -> tuple[str, int]: ...

crates/red_knot/vendor/typeshed/stdlib/_locale.pyi

@@ -1,100 +0,0 @@
-import sys
-from _typeshed import StrPath
-from collections.abc import Mapping
-
-LC_CTYPE: int
-LC_COLLATE: int
-LC_TIME: int
-LC_MONETARY: int
-LC_NUMERIC: int
-LC_ALL: int
-CHAR_MAX: int
-
-def setlocale(category: int, locale: str | None = None, /) -> str: ...
-def localeconv() -> Mapping[str, int | str | list[int]]: ...
-
-if sys.version_info >= (3, 11):
-    def getencoding() -> str: ...
-
-def strcoll(os1: str, os2: str, /) -> int: ...
-def strxfrm(string: str, /) -> str: ...
-
-# native gettext functions
-# https://docs.python.org/3/library/locale.html#access-to-message-catalogs
-# https://github.com/python/cpython/blob/f4c03484da59049eb62a9bf7777b963e2267d187/Modules/_localemodule.c#L626
-if sys.platform != "win32":
-    LC_MESSAGES: int
-
-    ABDAY_1: int
-    ABDAY_2: int
-    ABDAY_3: int
-    ABDAY_4: int
-    ABDAY_5: int
-    ABDAY_6: int
-    ABDAY_7: int
-
-    ABMON_1: int
-    ABMON_2: int
-    ABMON_3: int
-    ABMON_4: int
-    ABMON_5: int
-    ABMON_6: int
-    ABMON_7: int
-    ABMON_8: int
-    ABMON_9: int
-    ABMON_10: int
-    ABMON_11: int
-    ABMON_12: int
-
-    DAY_1: int
-    DAY_2: int
-    DAY_3: int
-    DAY_4: int
-    DAY_5: int
-    DAY_6: int
-    DAY_7: int
-
-    ERA: int
-    ERA_D_T_FMT: int
-    ERA_D_FMT: int
-    ERA_T_FMT: int
-
-    MON_1: int
-    MON_2: int
-    MON_3: int
-    MON_4: int
-    MON_5: int
-    MON_6: int
-    MON_7: int
-    MON_8: int
-    MON_9: int
-    MON_10: int
-    MON_11: int
-    MON_12: int
-
-    CODESET: int
-    D_T_FMT: int
-    D_FMT: int
-    T_FMT: int
-    T_FMT_AMPM: int
-    AM_STR: int
-    PM_STR: int
-
-    RADIXCHAR: int
-    THOUSEP: int
-    YESEXPR: int
-    NOEXPR: int
-    CRNCYSTR: int
-    ALT_DIGITS: int
-
-    def nl_langinfo(key: int, /) -> str: ...
-
-    # This is dependent on `libintl.h` which is a part of `gettext`
-    # system dependency. These functions might be missing.
-    # But, we always say that they are present.
-    def gettext(msg: str, /) -> str: ...
-    def dgettext(domain: str | None, msg: str, /) -> str: ...
-    def dcgettext(domain: str | None, msg: str, category: int, /) -> str: ...
-    def textdomain(domain: str | None, /) -> str: ...
-    def bindtextdomain(domain: str, dir: StrPath | None, /) -> str: ...
-    def bind_textdomain_codeset(domain: str, codeset: str | None, /) -> str | None: ...

crates/red_knot/vendor/typeshed/stdlib/_lsprof.pyi

@@ -1,35 +0,0 @@
-import sys
-from _typeshed import structseq
-from collections.abc import Callable
-from types import CodeType
-from typing import Any, Final, final
-
-class Profiler:
-    def __init__(
-        self, timer: Callable[[], float] | None = None, timeunit: float = 0.0, subcalls: bool = True, builtins: bool = True
-    ) -> None: ...
-    def getstats(self) -> list[profiler_entry]: ...
-    def enable(self, subcalls: bool = True, builtins: bool = True) -> None: ...
-    def disable(self) -> None: ...
-    def clear(self) -> None: ...
-
-@final
-class profiler_entry(structseq[Any], tuple[CodeType | str, int, int, float, float, list[profiler_subentry]]):
-    if sys.version_info >= (3, 10):
-        __match_args__: Final = ("code", "callcount", "reccallcount", "totaltime", "inlinetime", "calls")
-    code: CodeType | str
-    callcount: int
-    reccallcount: int
-    totaltime: float
-    inlinetime: float
-    calls: list[profiler_subentry]
-
-@final
-class profiler_subentry(structseq[Any], tuple[CodeType | str, int, int, float, float]):
-    if sys.version_info >= (3, 10):
-        __match_args__: Final = ("code", "callcount", "reccallcount", "totaltime", "inlinetime")
-    code: CodeType | str
-    callcount: int
-    reccallcount: int
-    totaltime: float
-    inlinetime: float

crates/red_knot/vendor/typeshed/stdlib/_markupbase.pyi

@@ -1,16 +0,0 @@
-import sys
-from typing import Any
-
-class ParserBase:
-    def reset(self) -> None: ...
-    def getpos(self) -> tuple[int, int]: ...
-    def unknown_decl(self, data: str) -> None: ...
-    def parse_comment(self, i: int, report: int = 1) -> int: ...  # undocumented
-    def parse_declaration(self, i: int) -> int: ...  # undocumented
-    def parse_marked_section(self, i: int, report: int = 1) -> int: ...  # undocumented
-    def updatepos(self, i: int, j: int) -> int: ...  # undocumented
-    if sys.version_info < (3, 10):
-        # Removed from ParserBase: https://bugs.python.org/issue31844
-        def error(self, message: str) -> Any: ...  # undocumented
-    lineno: int  # undocumented
-    offset: int  # undocumented

crates/red_knot/vendor/typeshed/stdlib/_msi.pyi

@@ -1,92 +0,0 @@
-import sys
-
-if sys.platform == "win32":
-    class MSIError(Exception): ...
-    # Actual typename View, not exposed by the implementation
-    class _View:
-        def Execute(self, params: _Record | None = ...) -> None: ...
-        def GetColumnInfo(self, kind: int) -> _Record: ...
-        def Fetch(self) -> _Record: ...
-        def Modify(self, mode: int, record: _Record) -> None: ...
-        def Close(self) -> None: ...
-        # Don't exist at runtime
-        __new__: None  # type: ignore[assignment]
-        __init__: None  # type: ignore[assignment]
-
-    # Actual typename SummaryInformation, not exposed by the implementation
-    class _SummaryInformation:
-        def GetProperty(self, field: int) -> int | bytes | None: ...
-        def GetPropertyCount(self) -> int: ...
-        def SetProperty(self, field: int, value: int | str) -> None: ...
-        def Persist(self) -> None: ...
-        # Don't exist at runtime
-        __new__: None  # type: ignore[assignment]
-        __init__: None  # type: ignore[assignment]
-
-    # Actual typename Database, not exposed by the implementation
-    class _Database:
-        def OpenView(self, sql: str) -> _View: ...
-        def Commit(self) -> None: ...
-        def GetSummaryInformation(self, updateCount: int) -> _SummaryInformation: ...
-        def Close(self) -> None: ...
-        # Don't exist at runtime
-        __new__: None  # type: ignore[assignment]
-        __init__: None  # type: ignore[assignment]
-
-    # Actual typename Record, not exposed by the implementation
-    class _Record:
-        def GetFieldCount(self) -> int: ...
-        def GetInteger(self, field: int) -> int: ...
-        def GetString(self, field: int) -> str: ...
-        def SetString(self, field: int, str: str) -> None: ...
-        def SetStream(self, field: int, stream: str) -> None: ...
-        def SetInteger(self, field: int, int: int) -> None: ...
-        def ClearData(self) -> None: ...
-        # Don't exist at runtime
-        __new__: None  # type: ignore[assignment]
-        __init__: None  # type: ignore[assignment]
-
-    def UuidCreate() -> str: ...
-    def FCICreate(cabname: str, files: list[str], /) -> None: ...
-    def OpenDatabase(path: str, persist: int, /) -> _Database: ...
-    def CreateRecord(count: int, /) -> _Record: ...
-
-    MSICOLINFO_NAMES: int
-    MSICOLINFO_TYPES: int
-    MSIDBOPEN_CREATE: int
-    MSIDBOPEN_CREATEDIRECT: int
-    MSIDBOPEN_DIRECT: int
-    MSIDBOPEN_PATCHFILE: int
-    MSIDBOPEN_READONLY: int
-    MSIDBOPEN_TRANSACT: int
-    MSIMODIFY_ASSIGN: int
-    MSIMODIFY_DELETE: int
-    MSIMODIFY_INSERT: int
-    MSIMODIFY_INSERT_TEMPORARY: int
-    MSIMODIFY_MERGE: int
-    MSIMODIFY_REFRESH: int
-    MSIMODIFY_REPLACE: int
-    MSIMODIFY_SEEK: int
-    MSIMODIFY_UPDATE: int
-    MSIMODIFY_VALIDATE: int
-    MSIMODIFY_VALIDATE_DELETE: int
-    MSIMODIFY_VALIDATE_FIELD: int
-    MSIMODIFY_VALIDATE_NEW: int
-
-    PID_APPNAME: int
-    PID_AUTHOR: int
-    PID_CHARCOUNT: int
-    PID_CODEPAGE: int
-    PID_COMMENTS: int
-    PID_CREATE_DTM: int
-    PID_KEYWORDS: int
-    PID_LASTAUTHOR: int
-    PID_LASTPRINTED: int
-    PID_LASTSAVE_DTM: int
-    PID_PAGECOUNT: int
-    PID_REVNUMBER: int
-    PID_SECURITY: int
-    PID_SUBJECT: int
-    PID_TEMPLATE: int
-    PID_TITLE: int
-    PID_WORDCOUNT: int

crates/red_knot/vendor/typeshed/stdlib/_operator.pyi

@@ -1,147 +0,0 @@
-import sys
-from _typeshed import SupportsGetItem
-from collections.abc import Callable, Container, Iterable, MutableMapping, MutableSequence, Sequence
-from typing import Any, AnyStr, Generic, Protocol, SupportsAbs, SupportsIndex, TypeVar, final, overload
-from typing_extensions import ParamSpec, TypeAlias, TypeVarTuple, Unpack
-
-_R = TypeVar("_R")
-_T = TypeVar("_T")
-_T_co = TypeVar("_T_co", covariant=True)
-_T1 = TypeVar("_T1")
-_T2 = TypeVar("_T2")
-_K = TypeVar("_K")
-_V = TypeVar("_V")
-_P = ParamSpec("_P")
-_Ts = TypeVarTuple("_Ts")
-
-# The following protocols return "Any" instead of bool, since the comparison
-# operators can be overloaded to return an arbitrary object. For example,
-# the numpy.array comparison dunders return another numpy.array.
-
-class _SupportsDunderLT(Protocol):
-    def __lt__(self, other: Any, /) -> Any: ...
-
-class _SupportsDunderGT(Protocol):
-    def __gt__(self, other: Any, /) -> Any: ...
-
-class _SupportsDunderLE(Protocol):
-    def __le__(self, other: Any, /) -> Any: ...
-
-class _SupportsDunderGE(Protocol):
-    def __ge__(self, other: Any, /) -> Any: ...
-
-_SupportsComparison: TypeAlias = _SupportsDunderLE | _SupportsDunderGE | _SupportsDunderGT | _SupportsDunderLT
-
-class _SupportsInversion(Protocol[_T_co]):
-    def __invert__(self) -> _T_co: ...
-
-class _SupportsNeg(Protocol[_T_co]):
-    def __neg__(self) -> _T_co: ...
-
-class _SupportsPos(Protocol[_T_co]):
-    def __pos__(self) -> _T_co: ...
-
-# All four comparison functions must have the same signature, or we get false-positive errors
-def lt(a: _SupportsComparison, b: _SupportsComparison, /) -> Any: ...
-def le(a: _SupportsComparison, b: _SupportsComparison, /) -> Any: ...
-def eq(a: object, b: object, /) -> Any: ...
-def ne(a: object, b: object, /) -> Any: ...
-def ge(a: _SupportsComparison, b: _SupportsComparison, /) -> Any: ...
-def gt(a: _SupportsComparison, b: _SupportsComparison, /) -> Any: ...
-def not_(a: object, /) -> bool: ...
-def truth(a: object, /) -> bool: ...
-def is_(a: object, b: object, /) -> bool: ...
-def is_not(a: object, b: object, /) -> bool: ...
-def abs(a: SupportsAbs[_T], /) -> _T: ...
-def add(a: Any, b: Any, /) -> Any: ...
-def and_(a: Any, b: Any, /) -> Any: ...
-def floordiv(a: Any, b: Any, /) -> Any: ...
-def index(a: SupportsIndex, /) -> int: ...
-def inv(a: _SupportsInversion[_T_co], /) -> _T_co: ...
-def invert(a: _SupportsInversion[_T_co], /) -> _T_co: ...
-def lshift(a: Any, b: Any, /) -> Any: ...
-def mod(a: Any, b: Any, /) -> Any: ...
-def mul(a: Any, b: Any, /) -> Any: ...
-def matmul(a: Any, b: Any, /) -> Any: ...
-def neg(a: _SupportsNeg[_T_co], /) -> _T_co: ...
-def or_(a: Any, b: Any, /) -> Any: ...
-def pos(a: _SupportsPos[_T_co], /) -> _T_co: ...
-def pow(a: Any, b: Any, /) -> Any: ...
-def rshift(a: Any, b: Any, /) -> Any: ...
-def sub(a: Any, b: Any, /) -> Any: ...
-def truediv(a: Any, b: Any, /) -> Any: ...
-def xor(a: Any, b: Any, /) -> Any: ...
-def concat(a: Sequence[_T], b: Sequence[_T], /) -> Sequence[_T]: ...
-def contains(a: Container[object], b: object, /) -> bool: ...
-def countOf(a: Iterable[object], b: object, /) -> int: ...
-@overload
-def delitem(a: MutableSequence[Any], b: SupportsIndex, /) -> None: ...
-@overload
-def delitem(a: MutableSequence[Any], b: slice, /) -> None: ...
-@overload
-def delitem(a: MutableMapping[_K, Any], b: _K, /) -> None: ...
-@overload
-def getitem(a: Sequence[_T], b: slice, /) -> Sequence[_T]: ...
-@overload
-def getitem(a: SupportsGetItem[_K, _V], b: _K, /) -> _V: ...
-def indexOf(a: Iterable[_T], b: _T, /) -> int: ...
-@overload
-def setitem(a: MutableSequence[_T], b: SupportsIndex, c: _T, /) -> None: ...
-@overload
-def setitem(a: MutableSequence[_T], b: slice, c: Sequence[_T], /) -> None: ...
-@overload
-def setitem(a: MutableMapping[_K, _V], b: _K, c: _V, /) -> None: ...
-def length_hint(obj: object, default: int = 0, /) -> int: ...
-@final
-class attrgetter(Generic[_T_co]):
-    @overload
-    def __new__(cls, attr: str, /) -> attrgetter[Any]: ...
-    @overload
-    def __new__(cls, attr: str, attr2: str, /) -> attrgetter[tuple[Any, Any]]: ...
-    @overload
-    def __new__(cls, attr: str, attr2: str, attr3: str, /) -> attrgetter[tuple[Any, Any, Any]]: ...
-    @overload
-    def __new__(cls, attr: str, attr2: str, attr3: str, attr4: str, /) -> attrgetter[tuple[Any, Any, Any, Any]]: ...
-    @overload
-    def __new__(cls, attr: str, /, *attrs: str) -> attrgetter[tuple[Any, ...]]: ...
-    def __call__(self, obj: Any, /) -> _T_co: ...
-
-@final
-class itemgetter(Generic[_T_co]):
-    @overload
-    def __new__(cls, item: _T, /) -> itemgetter[_T]: ...
-    @overload
-    def __new__(cls, item1: _T1, item2: _T2, /, *items: Unpack[_Ts]) -> itemgetter[tuple[_T1, _T2, Unpack[_Ts]]]: ...
-    # __key: _KT_contra in SupportsGetItem seems to be causing variance issues, ie:
-    # TypeVar "_KT_contra@SupportsGetItem" is contravariant
-    #   "tuple[int, int]" is incompatible with protocol "SupportsIndex"
-    # preventing [_T_co, ...] instead of [Any, ...]
-    #
-    # A suspected mypy issue prevents using [..., _T] instead of [..., Any] here.
-    # https://github.com/python/mypy/issues/14032
-    def __call__(self, obj: SupportsGetItem[Any, Any]) -> Any: ...
-
-@final
-class methodcaller:
-    def __init__(self, name: str, /, *args: Any, **kwargs: Any) -> None: ...
-    def __call__(self, obj: Any) -> Any: ...
-
-def iadd(a: Any, b: Any, /) -> Any: ...
-def iand(a: Any, b: Any, /) -> Any: ...
-def iconcat(a: Any, b: Any, /) -> Any: ...
-def ifloordiv(a: Any, b: Any, /) -> Any: ...
-def ilshift(a: Any, b: Any, /) -> Any: ...
-def imod(a: Any, b: Any, /) -> Any: ...
-def imul(a: Any, b: Any, /) -> Any: ...
-def imatmul(a: Any, b: Any, /) -> Any: ...
-def ior(a: Any, b: Any, /) -> Any: ...
-def ipow(a: Any, b: Any, /) -> Any: ...
-def irshift(a: Any, b: Any, /) -> Any: ...
-def isub(a: Any, b: Any, /) -> Any: ...
-def itruediv(a: Any, b: Any, /) -> Any: ...
-def ixor(a: Any, b: Any, /) -> Any: ...
-
-if sys.version_info >= (3, 11):
-    def call(obj: Callable[_P, _R], /, *args: _P.args, **kwargs: _P.kwargs) -> _R: ...
-
-def _compare_digest(a: AnyStr, b: AnyStr, /) -> bool: ...