Try a bit set

2022-11-18 22:20:41 -05:00
341 changed files with 4382 additions and 11131 deletions
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -82,7 +82,7 @@ jobs:
            ${{ runner.os }}-build-${{ env.cache-name }}-
            ${{ runner.os }}-build-
            ${{ runner.os }}-
-      - run: cargo clippy --workspace --all-targets --all-features -- -D warnings -W clippy::pedantic
+      - run: cargo clippy --workspace --all-targets --all-features -- -D warnings

  cargo_test:
    name: "cargo test"
--- a/.github/workflows/flake8-to-ruff.yaml
+++ b/.github/workflows/flake8-to-ruff.yaml
@@ -34,6 +34,7 @@ jobs:
        with:
          target: x86_64
          args: --release --out dist --sdist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+          maturin-version: "v0.13.0"
      - name: Install built wheel - x86_64
        run: |
          pip install dist/${{ env.CRATE_NAME }}-*.whl --force-reinstall
@@ -60,6 +61,7 @@ jobs:
        uses: messense/maturin-action@v1
        with:
          args: --release --universal2 --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+          maturin-version: "v0.13.0"
      - name: Install built wheel - universal2
        run: |
          pip install dist/${{ env.CRATE_NAME }}-*universal2.whl --force-reinstall
@@ -91,6 +93,7 @@ jobs:
        with:
          target: ${{ matrix.target }}
          args: --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+          maturin-version: "v0.13.0"
      - name: Install built wheel
        shell: bash
        run: |
@@ -118,6 +121,7 @@ jobs:
          target: ${{ matrix.target }}
          manylinux: auto
          args: --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+          maturin-version: "v0.13.0"
      - name: Install built wheel
        if: matrix.target == 'x86_64'
        run: |
@@ -144,6 +148,7 @@ jobs:
          target: ${{ matrix.target }}
          manylinux: auto
          args: --no-default-features --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+          maturin-version: "v0.13.0"
      - uses: uraimo/run-on-arch-action@v2.0.5
        if: matrix.target != 'ppc64'
        name: Install built wheel
@@ -182,6 +187,7 @@ jobs:
          target: ${{ matrix.target }}
          manylinux: musllinux_1_2
          args: --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+          maturin-version: "v0.13.0"
      - name: Install built wheel
        if: matrix.target == 'x86_64-unknown-linux-musl'
        uses: addnab/docker-run-action@v3
@@ -217,6 +223,7 @@ jobs:
          target: ${{ matrix.platform.target }}
          manylinux: musllinux_1_2
          args: --release --out dist -m ./${{ env.CRATE_NAME }}/Cargo.toml
+          maturin-version: "v0.13.0"
      - uses: uraimo/run-on-arch-action@master
        name: Install built wheel
        with:
@@ -254,6 +261,7 @@ jobs:
      - name: Build wheels
        uses: messense/maturin-action@v1
        with:
+          maturin-version: "v0.13.0"
          target: ${{ matrix.target }}
          manylinux: auto
          args: --release --out dist -i pypy${{ matrix.python-version }} -m ./${{ env.CRATE_NAME }}/Cargo.toml
--- a/.github/workflows/ruff.yaml
+++ b/.github/workflows/ruff.yaml
@@ -36,6 +36,7 @@ jobs:
        with:
          target: x86_64
          args: --release --out dist --sdist
+          maturin-version: "v0.13.0"
      - name: Install built wheel - x86_64
        run: |
          pip install dist/${{ env.PACKAGE_NAME }}-*.whl --force-reinstall
@@ -62,6 +63,7 @@ jobs:
        uses: messense/maturin-action@v1
        with:
          args: --release --universal2 --out dist
+          maturin-version: "v0.13.0"
      - name: Install built wheel - universal2
        run: |
          pip install dist/${{ env.PACKAGE_NAME }}-*universal2.whl --force-reinstall
@@ -93,6 +95,7 @@ jobs:
        with:
          target: ${{ matrix.target }}
          args: --release --out dist
+          maturin-version: "v0.13.0"
      - name: Install built wheel
        shell: bash
        run: |
@@ -120,6 +123,7 @@ jobs:
          target: ${{ matrix.target }}
          manylinux: auto
          args: --release --out dist
+          maturin-version: "v0.13.0"
      - name: Install built wheel
        if: matrix.target == 'x86_64'
        run: |
@@ -146,6 +150,7 @@ jobs:
          target: ${{ matrix.target }}
          manylinux: auto
          args: --no-default-features --release --out dist
+          maturin-version: "v0.13.0"
      - uses: uraimo/run-on-arch-action@v2.0.5
        if: matrix.target != 'ppc64'
        name: Install built wheel
@@ -184,6 +189,7 @@ jobs:
          target: ${{ matrix.target }}
          manylinux: musllinux_1_2
          args: --release --out dist
+          maturin-version: "v0.13.0"
      - name: Install built wheel
        if: matrix.target == 'x86_64-unknown-linux-musl'
        uses: addnab/docker-run-action@v3
@@ -219,6 +225,7 @@ jobs:
          target: ${{ matrix.platform.target }}
          manylinux: musllinux_1_2
          args: --release --out dist
+          maturin-version: "v0.13.0"
      - uses: uraimo/run-on-arch-action@master
        name: Install built wheel
        with:
@@ -256,6 +263,7 @@ jobs:
      - name: Build wheels
        uses: messense/maturin-action@v1
        with:
+          maturin-version: "v0.13.0"
          target: ${{ matrix.target }}
          manylinux: auto
          args: --release --out dist -i pypy${{ matrix.python-version }}
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
  - repo: https://github.com/charliermarsh/ruff-pre-commit
-    rev: v0.0.145
+    rev: v0.0.128
    hooks:
      - id: ruff

--- a/Cargo.lock
+++ b/Cargo.lock
@@ -94,6 +94,133 @@ dependencies = [
 "wait-timeout",
 ]

+[[package]]
+name = "async-channel"
+version = "1.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e14485364214912d3b19cc3435dde4df66065127f05fa0d75c712f36f12c2f28"
+dependencies = [
+ "concurrent-queue",
+ "event-listener",
+ "futures-core",
+]
+
+[[package]]
+name = "async-executor"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "871f9bb5e0a22eeb7e8cf16641feb87c9dc67032ccf8ff49e772eb9941d3a965"
+dependencies = [
+ "async-task",
+ "concurrent-queue",
+ "fastrand",
+ "futures-lite",
+ "once_cell",
+ "slab",
+]
+
+[[package]]
+name = "async-global-executor"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1b6f5d7df27bd294849f8eec66ecfc63d11814df7a4f5d74168a2394467b776"
+dependencies = [
+ "async-channel",
+ "async-executor",
+ "async-io",
+ "async-lock",
+ "blocking",
+ "futures-lite",
+ "once_cell",
+]
+
+[[package]]
+name = "async-io"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8121296a9f05be7f34aa4196b1747243b3b62e048bb7906f644f3fbfc490cf7"
+dependencies = [
+ "async-lock",
+ "autocfg",
+ "concurrent-queue",
+ "futures-lite",
+ "libc",
+ "log",
+ "parking",
+ "polling",
+ "slab",
+ "socket2",
+ "waker-fn",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "async-lock"
+version = "2.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8101efe8695a6c17e02911402145357e718ac92d3ff88ae8419e84b1707b685"
+dependencies = [
+ "event-listener",
+ "futures-lite",
+]
+
+[[package]]
+name = "async-process"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02111fd8655a613c25069ea89fc8d9bb89331fa77486eb3bc059ee757cfa481c"
+dependencies = [
+ "async-io",
+ "autocfg",
+ "blocking",
+ "cfg-if 1.0.0",
+ "event-listener",
+ "futures-lite",
+ "libc",
+ "once_cell",
+ "signal-hook",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "async-std"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62565bb4402e926b29953c785397c6dc0391b7b446e45008b0049eb43cec6f5d"
+dependencies = [
+ "async-channel",
+ "async-global-executor",
+ "async-io",
+ "async-lock",
+ "async-process",
+ "crossbeam-utils",
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-lite",
+ "gloo-timers",
+ "kv-log-macro",
+ "log",
+ "memchr",
+ "once_cell",
+ "pin-project-lite",
+ "pin-utils",
+ "slab",
+ "wasm-bindgen-futures",
+]
+
+[[package]]
+name = "async-task"
+version = "4.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a40729d2133846d9ed0ea60a8b9541bccddab49cd30f0715a1da672fe9a2524"
+
+[[package]]
+name = "atomic-waker"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "065374052e7df7ee4047b1160cca5e1467a12351a40b3da123c870ba0b8eda2a"
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -111,6 +238,15 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"

+[[package]]
+name = "base64"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b25d992356d2eb0ed82172f5248873db5560c4721f564b13cb5193bda5e668e"
+dependencies = [
+ "byteorder",
+]
+
 [[package]]
 name = "base64"
 version = "0.13.1"
@@ -147,6 +283,50 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"

+[[package]]
+name = "block-buffer"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0940dc441f31689269e10ac70eb1002a3a1d3ad1390e030043662eb7fe4688b"
+dependencies = [
+ "block-padding",
+ "byte-tools",
+ "byteorder",
+ "generic-array 0.12.4",
+]
+
+[[package]]
+name = "block-buffer"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4152116fd6e9dadb291ae18fc1ec3575ed6d84c29642d97890f4b4a3417297e4"
+dependencies = [
+ "generic-array 0.14.6",
+]
+
+[[package]]
+name = "block-padding"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa79dedbb091f449f1f39e53edf88d5dbe95f895dae6135a8d7b881fb5af73f5"
+dependencies = [
+ "byte-tools",
+]
+
+[[package]]
+name = "blocking"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c6ccb65d468978a086b69884437ded69a90faab3bbe6e67f242173ea728acccc"
+dependencies = [
+ "async-channel",
+ "async-task",
+ "atomic-waker",
+ "fastrand",
+ "futures-lite",
+ "once_cell",
+]
+
 [[package]]
 name = "bstr"
 version = "0.2.17"
@@ -177,14 +357,46 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "572f695136211188308f16ad2ca5c851a712c464060ae6974944458eb83880ba"

 [[package]]
-name = "cachedir"
-version = "0.3.0"
+name = "byte-tools"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e236bf5873ea57ec2877445297f4da008916bfae51567131acfc54a073d694f3"
+checksum = "e3b5ca7a04898ad4bcd41c90c5285445ff5b791899bb1b0abdd2a2aa791211d7"
+
+[[package]]
+name = "byteorder"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+
+[[package]]
+name = "cacache"
+version = "10.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c13caedf5b624de6448b78e980320a27266557350198dc67cf64bc8561c27e8"
 dependencies = [
+ "async-std",
+ "digest 0.9.0",
+ "either",
+ "futures",
+ "hex 0.4.3",
+ "memmap2",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "sha-1 0.9.8",
+ "sha2 0.9.9",
+ "ssri",
 "tempfile",
+ "thiserror",
+ "walkdir",
 ]

+[[package]]
+name = "cache-padded"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1db59621ec70f09c5e9b597b220c7a2b43611f4710dc03ceb8748637775692c"
+
 [[package]]
 name = "cast"
 version = "0.3.0"
@@ -290,36 +502,6 @@ dependencies = [
 "termcolor",
 ]

-[[package]]
-name = "clap_complete"
-version = "4.0.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7b3c9eae0de7bf8e3f904a5e40612b21fb2e2e566456d177809a48b892d24da"
-dependencies = [
- "clap 4.0.22",
-]
-
-[[package]]
-name = "clap_complete_command"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4160b4a4f72ef58bd766bad27c09e6ef1cc9d82a22f6a0f55d152985a4a48e31"
-dependencies = [
- "clap 4.0.22",
- "clap_complete",
- "clap_complete_fig",
-]
-
-[[package]]
-name = "clap_complete_fig"
-version = "4.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46b30e010e669cd021e5004f3be26cff6b7c08d2a8a0d65b48d43a8cc0efd6c3"
-dependencies = [
- "clap 4.0.22",
- "clap_complete",
-]
-
 [[package]]
 name = "clap_derive"
 version = "4.0.21"
@@ -400,6 +582,15 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2382f75942f4b3be3690fe4f86365e9c853c1587d6ee58212cebf6e2a9ccd101"

+[[package]]
+name = "concurrent-queue"
+version = "1.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af4780a44ab5696ea9e28294517f1fffb421a83a25af521333c838635509db9c"
+dependencies = [
+ "cache-padded",
+]
+
 [[package]]
 name = "configparser"
 version = "3.0.2"
@@ -425,6 +616,15 @@ version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"

+[[package]]
+name = "cpufeatures"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28d997bd5e24a5928dd43e46dc529867e207907fe0b239c3477d924f7f2ca320"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.3.2"
@@ -519,6 +719,16 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"

+[[package]]
+name = "ctor"
+version = "0.1.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d2301688392eb071b0bf1a37be05c469d3cc4dbbd95df672fe28ab021e6a096"
+dependencies = [
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "cxx"
 version = "1.0.81"
@@ -575,6 +785,24 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6184e33543162437515c2e2b48714794e37845ec9851711914eec9d308f6ebe8"

+[[package]]
+name = "digest"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3d0c8c8752312f9713efd397ff63acb9f85585afbf179282e720e7704954dd5"
+dependencies = [
+ "generic-array 0.12.4",
+]
+
+[[package]]
+name = "digest"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3dd60d1080a57a05ab032377049e0591415d2b31afd7028356dbf3cc6dcb066"
+dependencies = [
+ "generic-array 0.14.6",
+]
+
 [[package]]
 name = "directories"
 version = "4.0.1"
@@ -662,6 +890,18 @@ version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"

+[[package]]
+name = "event-listener"
+version = "2.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0206175f82b8d6bf6652ff7d71a1e27fd2e4efde587fd368662814d6ec1d9ce0"
+
+[[package]]
+name = "fake-simd"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
+
 [[package]]
 name = "fastrand"
 version = "1.8.0"
@@ -700,15 +940,15 @@ checksum = "0ce7134b9999ecaf8bcd65542e436736ef32ddca1b3e06094cb6ec5755203b80"

 [[package]]
 name = "flake8-to-ruff"
-version = "0.0.145-dev.0"
+version = "0.0.128-dev.0"
 dependencies = [
 "anyhow",
 "clap 4.0.22",
 "configparser",
+ "fnv",
 "once_cell",
 "regex",
 "ruff",
- "rustc-hash",
 "serde",
 "serde_json",
 "toml",
@@ -774,6 +1014,129 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"

+[[package]]
+name = "futures"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38390104763dc37a5145a53c29c63c1290b5d316d6086ec32c293f6736051bb0"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-io",
+ "futures-sink",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-channel"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52ba265a92256105f45b719605a571ffe2d1f0fea3807304b522c1d778f79eed"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+]
+
+[[package]]
+name = "futures-core"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04909a7a7e4633ae6c4a9ab280aeb86da1236243a77b694a49eacd659a4bd3ac"
+
+[[package]]
+name = "futures-executor"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7acc85df6714c176ab5edf386123fafe217be88c0840ec11f199441134a074e2"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-io"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00f5fb52a06bdcadeb54e8d3671f8888a39697dcb0b81b23b55174030427f4eb"
+
+[[package]]
+name = "futures-lite"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7694489acd39452c77daa48516b894c153f192c3578d5a839b62c58099fcbf48"
+dependencies = [
+ "fastrand",
+ "futures-core",
+ "futures-io",
+ "memchr",
+ "parking",
+ "pin-project-lite",
+ "waker-fn",
+]
+
+[[package]]
+name = "futures-macro"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bdfb8ce053d86b91919aad980c220b1fb8401a9394410e1c289ed7e66b61835d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "futures-sink"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39c15cf1a4aa79df40f1bb462fb39676d0ad9e366c2a33b590d7c66f4f81fcf9"
+
+[[package]]
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+checksum = "2ffb393ac5d9a6eaa9d3fdf37ae2776656b706e200c8e16b1bdb227f5198e6ea"
+
+[[package]]
+name = "futures-util"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "197676987abd2f9cadff84926f410af1c183608d36641465df73ae8211dc65d6"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-macro",
+ "futures-sink",
+ "futures-task",
+ "memchr",
+ "pin-project-lite",
+ "pin-utils",
+ "slab",
+]
+
+[[package]]
+name = "generic-array"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffdf9f34f1447443d37393cc6c2b8313aebddcd96906caf34e54c68d8e57d7bd"
+dependencies = [
+ "typenum",
+]
+
+[[package]]
+name = "generic-array"
+version = "0.14.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bff49e947297f3312447abdca79f45f4738097cc82b06e72054d2223f601f1b9"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.1.16"
@@ -799,16 +1162,21 @@ dependencies = [
 ]

 [[package]]
-name = "globset"
-version = "0.4.9"
+name = "glob"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a1e17342619edbc21a964c2afbeb6c820c6a2560032872f397bb97ea127bd0a"
+checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+
+[[package]]
+name = "gloo-timers"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5fb7d06c1c8cc2a29bee7ec961009a0b2caa0793ee4900c2ffb348734ba1c8f9"
 dependencies = [
- "aho-corasick",
- "bstr 0.2.17",
- "fnv",
- "log",
- "regex",
+ "futures-channel",
+ "futures-core",
+ "js-sys",
+ "wasm-bindgen",
 ]

 [[package]]
@@ -841,6 +1209,18 @@ dependencies = [
 "libc",
 ]

+[[package]]
+name = "hex"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "805026a5d0141ffc30abb3be3173848ad46a1b1664fe632428479619a3644d77"
+
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "hexf-parse"
 version = "0.2.1"
@@ -983,6 +1363,15 @@ dependencies = [
 "winapi-build",
 ]

+[[package]]
+name = "kv-log-macro"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"
+dependencies = [
+ "log",
+]
+
 [[package]]
 name = "lalrpop"
 version = "0.19.8"
@@ -1066,7 +1455,7 @@ checksum = "fc7fcc620a3bff7cdd7a365be3376c97191aeaccc2a603e600951e452615bf89"
 [[package]]
 name = "libcst"
 version = "0.1.0"
-source = "git+https://github.com/charliermarsh/LibCST?rev=f2f0b7a487a8725d161fe8b3ed73a6758b21e177#f2f0b7a487a8725d161fe8b3ed73a6758b21e177"
+source = "git+https://github.com/charliermarsh/LibCST?rev=a13ec97dd4eb925bde4d426c6e422582793b260c#a13ec97dd4eb925bde4d426c6e422582793b260c"
 dependencies = [
 "chic",
 "itertools",
@@ -1081,7 +1470,7 @@ dependencies = [
 [[package]]
 name = "libcst_derive"
 version = "0.1.0"
-source = "git+https://github.com/charliermarsh/LibCST?rev=f2f0b7a487a8725d161fe8b3ed73a6758b21e177#f2f0b7a487a8725d161fe8b3ed73a6758b21e177"
+source = "git+https://github.com/charliermarsh/LibCST?rev=a13ec97dd4eb925bde4d426c6e422582793b260c#a13ec97dd4eb925bde4d426c6e422582793b260c"
 dependencies = [
 "quote",
 "syn",
@@ -1119,6 +1508,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
 dependencies = [
 "cfg-if 1.0.0",
+ "value-bag",
 ]

 [[package]]
@@ -1142,6 +1532,15 @@ version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"

+[[package]]
+name = "memmap2"
+version = "0.5.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95af15f345b17af2efc8ead6080fb8bc376f8cec1b35277b935637595fe77498"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memoffset"
 version = "0.6.5"
@@ -1328,12 +1727,30 @@ version = "11.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ab1bc2a289d34bd04a330323ac98a1b4bc82c9d9fcb1e66b63caa84da26b575"

+[[package]]
+name = "opaque-debug"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
+
+[[package]]
+name = "opaque-debug"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
+
 [[package]]
 name = "os_str_bytes"
 version = "6.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3baf96e39c5359d2eb0dd6ccb42c62b91d9678aa68160d261b9e0ccbf9e9dea9"

+[[package]]
+name = "parking"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "427c3892f9e783d91cc128285287e70a59e206ca452770ece88a76f7a3eddd72"
+
 [[package]]
 name = "parking_lot"
 version = "0.12.1"
@@ -1506,6 +1923,18 @@ version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "db8bcd96cb740d03149cbad5518db9fd87126a10ab519c011893b1754134c468"

+[[package]]
+name = "pin-project-lite"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116"
+
+[[package]]
+name = "pin-utils"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+
 [[package]]
 name = "plotters"
 version = "0.3.4"
@@ -1534,6 +1963,20 @@ dependencies = [
 "plotters-backend",
 ]

+[[package]]
+name = "polling"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab4609a838d88b73d8238967b60dd115cc08d38e2bbaf51ee1e4b695f89122e2"
+dependencies = [
+ "autocfg",
+ "cfg-if 1.0.0",
+ "libc",
+ "log",
+ "wepoll-ffi",
+ "winapi 0.3.9",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.17"
@@ -1805,7 +2248,7 @@ dependencies = [

 [[package]]
 name = "ruff"
-version = "0.0.145"
+version = "0.0.128"
 dependencies = [
 "annotate-snippets 0.9.1",
 "anyhow",
@@ -1813,10 +2256,9 @@ dependencies = [
 "atty",
 "bincode",
 "bitflags",
- "cachedir",
+ "cacache",
 "chrono",
 "clap 4.0.22",
- "clap_complete_command",
 "clearscreen",
 "colored",
 "common-path",
@@ -1824,8 +2266,9 @@ dependencies = [
 "dirs 4.0.0",
 "fern",
 "filetime",
+ "fnv",
 "getrandom 0.2.8",
- "globset",
+ "glob",
 "insta",
 "itertools",
 "libcst",
@@ -1838,7 +2281,6 @@ dependencies = [
 "rayon",
 "regex",
 "ropey",
- "rustc-hash",
 "rustpython-ast",
 "rustpython-common",
 "rustpython-parser",
@@ -1856,7 +2298,7 @@ dependencies = [

 [[package]]
 name = "ruff_dev"
-version = "0.0.145"
+version = "0.0.128"
 dependencies = [
 "anyhow",
 "clap 4.0.22",
@@ -1871,12 +2313,6 @@ dependencies = [
 "strum_macros",
 ]

-[[package]]
-name = "rustc-hash"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
-
 [[package]]
 name = "rustls"
 version = "0.20.7"
@@ -1892,7 +2328,7 @@ dependencies = [
 [[package]]
 name = "rustpython-ast"
 version = "0.1.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=f885db8c61514f069979861f6b3bd83292086231#f885db8c61514f069979861f6b3bd83292086231"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
 "num-bigint",
 "rustpython-common",
@@ -1902,7 +2338,7 @@ dependencies = [
 [[package]]
 name = "rustpython-common"
 version = "0.0.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=f885db8c61514f069979861f6b3bd83292086231#f885db8c61514f069979861f6b3bd83292086231"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
 "ascii",
 "cfg-if 1.0.0",
@@ -1925,7 +2361,7 @@ dependencies = [
 [[package]]
 name = "rustpython-compiler-core"
 version = "0.1.2"
-source = "git+https://github.com/RustPython/RustPython.git?rev=f885db8c61514f069979861f6b3bd83292086231#f885db8c61514f069979861f6b3bd83292086231"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
 "bincode",
 "bitflags",
@@ -1942,7 +2378,7 @@ dependencies = [
 [[package]]
 name = "rustpython-parser"
 version = "0.1.2"
-source = "git+https://github.com/RustPython/RustPython.git?rev=f885db8c61514f069979861f6b3bd83292086231#f885db8c61514f069979861f6b3bd83292086231"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
 "ahash",
 "anyhow",
@@ -1954,7 +2390,6 @@ dependencies = [
 "num-traits",
 "phf 0.10.1",
 "phf_codegen 0.10.0",
- "rustc-hash",
 "rustpython-ast",
 "rustpython-compiler-core",
 "thiserror",
@@ -2044,6 +2479,75 @@ dependencies = [
 "serde",
 ]

+[[package]]
+name = "sha-1"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7d94d0bede923b3cea61f3f1ff57ff8cdfd77b400fb8f9998949e0cf04163df"
+dependencies = [
+ "block-buffer 0.7.3",
+ "digest 0.8.1",
+ "fake-simd",
+ "opaque-debug 0.2.3",
+]
+
+[[package]]
+name = "sha-1"
+version = "0.9.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99cd6713db3cf16b6c84e06321e049a9b9f699826e16096d23bbcc44d15d51a6"
+dependencies = [
+ "block-buffer 0.9.0",
+ "cfg-if 1.0.0",
+ "cpufeatures",
+ "digest 0.9.0",
+ "opaque-debug 0.3.0",
+]
+
+[[package]]
+name = "sha2"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a256f46ea78a0c0d9ff00077504903ac881a1dafdc20da66545699e7776b3e69"
+dependencies = [
+ "block-buffer 0.7.3",
+ "digest 0.8.1",
+ "fake-simd",
+ "opaque-debug 0.2.3",
+]
+
+[[package]]
+name = "sha2"
+version = "0.9.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4d58a1e1bf39749807d89cf2d98ac2dfa0ff1cb3faa38fbb64dd88ac8013d800"
+dependencies = [
+ "block-buffer 0.9.0",
+ "cfg-if 1.0.0",
+ "cpufeatures",
+ "digest 0.9.0",
+ "opaque-debug 0.3.0",
+]
+
+[[package]]
+name = "signal-hook"
+version = "0.3.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a253b5e89e2698464fc26b545c9edceb338e18a89effeeecfea192c3025be29d"
+dependencies = [
+ "libc",
+ "signal-hook-registry",
+]
+
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e51e73328dc4ac0c7ccbda3a494dfa03df1de2f46018127f60c693f2648455b0"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "similar"
 version = "2.2.0"
@@ -2077,12 +2581,37 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f67ad224767faa3c7d8b6d91985b78e70a1324408abcb1cfcc2be4c06bc06043"

+[[package]]
+name = "socket2"
+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02e2d2db9033d13a1567121ddd7a095ee144db4e1ca1b1bda3419bc0da294ebd"
+dependencies = [
+ "libc",
+ "winapi 0.3.9",
+]
+
 [[package]]
 name = "spin"
 version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"

+[[package]]
+name = "ssri"
+version = "7.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9cec0d388f39fbe79d7aa600e8d38053bf97b1bc8d350da7c0ba800d0f423f2"
+dependencies = [
+ "base64 0.10.1",
+ "digest 0.8.1",
+ "hex 0.3.2",
+ "serde",
+ "sha-1 0.8.2",
+ "sha2 0.8.2",
+ "thiserror",
+]
+
 [[package]]
 name = "static_assertions"
 version = "1.1.0"
@@ -2327,6 +2856,12 @@ dependencies = [
 "static_assertions",
 ]

+[[package]]
+name = "typenum"
+version = "1.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
+
 [[package]]
 name = "unic-char-property"
 version = "0.9.0"
@@ -2465,7 +3000,7 @@ version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b97acb4c28a254fd7a4aeec976c46a7fa404eac4d7c134b30c75144846d7cb8f"
 dependencies = [
- "base64",
+ "base64 0.13.1",
 "chunked_transfer",
 "flate2",
 "log",
@@ -2489,6 +3024,16 @@ dependencies = [
 "percent-encoding",
 ]

+[[package]]
+name = "value-bag"
+version = "1.0.0-alpha.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2209b78d1249f7e6f3293657c9779fe31ced465df091bbd433a1cf88e916ec55"
+dependencies = [
+ "ctor",
+ "version_check",
+]
+
 [[package]]
 name = "version_check"
 version = "0.9.4"
@@ -2510,6 +3055,12 @@ dependencies = [
 "libc",
 ]

+[[package]]
+name = "waker-fn"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
+
 [[package]]
 name = "walkdir"
 version = "2.3.2"
@@ -2558,6 +3109,18 @@ dependencies = [
 "wasm-bindgen-shared",
 ]

+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23639446165ca5a5de86ae1d8896b737ae80319560fbaa4c2887b7da6e7ebd7d"
+dependencies = [
+ "cfg-if 1.0.0",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
 [[package]]
 name = "wasm-bindgen-macro"
 version = "0.2.83"
@@ -2616,6 +3179,15 @@ dependencies = [
 "webpki",
 ]

+[[package]]
+name = "wepoll-ffi"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d743fdedc5c64377b5fc2bc036b01c7fd642205a0d96356034ae3404d49eb7fb"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "which"
 version = "4.3.0"
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,9 +6,8 @@ members = [

 [package]
 name = "ruff"
-version = "0.0.145"
+version = "0.0.128"
 edition = "2021"
-rust-version = "1.65.0"

 [lib]
 name = "ruff"
@@ -19,18 +18,17 @@ anyhow = { version = "1.0.66" }
 atty = { version = "0.2.14" }
 bincode = { version = "1.3.3" }
 bitflags = { version = "1.3.2" }
-cachedir = { version = "0.3.0" }
 chrono = { version = "0.4.21", default-features = false, features = ["clock"] }
 clap = { version = "4.0.1", features = ["derive"] }
-clap_complete_command = "0.4.0"
 colored = { version = "2.0.0" }
 common-path = { version = "1.0.0" }
 dirs = { version = "4.0.0" }
 fern = { version = "0.6.1" }
 filetime = { version = "0.2.17" }
-globset = {version = "0.4.9" }
+fnv = { version = "1.0.7" }
+glob = { version = "0.3.0" }
 itertools = { version = "0.10.5" }
-libcst = { git = "https://github.com/charliermarsh/LibCST", rev = "f2f0b7a487a8725d161fe8b3ed73a6758b21e177" }
+libcst = { git = "https://github.com/charliermarsh/LibCST", rev = "a13ec97dd4eb925bde4d426c6e422582793b260c" }
 log = { version = "0.4.17" }
 nohash-hasher = { version = "0.2.0" }
 notify = { version = "4.0.17" }
@@ -40,10 +38,9 @@ path-absolutize = { version = "3.0.14", features = ["once_cell_cache", "use_unix
 rayon = { version = "1.5.3" }
 regex = { version = "1.6.0" }
 ropey = { version = "1.5.0", features = ["cr_lines", "simd"], default-features = false }
-rustc-hash = { version = "1.1.0" }
-rustpython-ast = { features = ["unparse"], git = "https://github.com/RustPython/RustPython.git", rev = "f885db8c61514f069979861f6b3bd83292086231" }
-rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "f885db8c61514f069979861f6b3bd83292086231" }
-rustpython-parser = { features = ["lalrpop"], git = "https://github.com/RustPython/RustPython.git", rev = "f885db8c61514f069979861f6b3bd83292086231" }
+rustpython-ast = { features = ["unparse"], git = "https://github.com/RustPython/RustPython.git", rev = "27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb" }
+rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb" }
+rustpython-parser = { features = ["lalrpop"], git = "https://github.com/RustPython/RustPython.git", rev = "27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb" }
 serde = { version = "1.0.147", features = ["derive"] }
 serde_json = { version = "1.0.87" }
 strum = { version = "0.24.1", features = ["strum_macros"] }
@@ -55,6 +52,7 @@ update-informer = { version = "0.5.0", default-features = false, features = ["py
 walkdir = { version = "2.3.2" }

 [target.'cfg(not(target_family = "wasm"))'.dependencies]
+cacache = { version = "10.0.1" } # uses async-std
 clearscreen = { version = "1.0.10" } # uses which

 # https://docs.rs/getrandom/0.2.7/getrandom/#webassembly-support
--- a/75
+++ b/75
@@ -242,56 +242,6 @@ are:
    SOFTWARE.
  """

- flake8-debugger, licensed as follows:
-  """
-    MIT License
-
-    Copyright (c) 2016 Joseph Kahn
-
-    Permission is hereby granted, free of charge, to any person obtaining a copy
-    of this software and associated documentation files (the "Software"), to deal
-    in the Software without restriction, including without limitation the rights
-    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-    copies of the Software, and to permit persons to whom the Software is
-    furnished to do so, subject to the following conditions:
-
-    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.
-  """
-
- flake8-eradicate, licensed as follows:
-  """
-    MIT License
-
-    Copyright (c) 2018 Nikita Sobolev
-
-    Permission is hereby granted, free of charge, to any person obtaining a copy
-    of this software and associated documentation files (the "Software"), to deal
-    in the Software without restriction, including without limitation the rights
-    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-    copies of the Software, and to permit persons to whom the Software is
-    furnished to do so, subject to the following conditions:
-
-    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.
-  """
-
 - flake8-tidy-imports, licensed as follows:
  """
    MIT License
@@ -493,28 +443,3 @@ are:
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    THE SOFTWARE.
  """
-
- RustPython, licensed as follows:
-  """
-    MIT License
-
-    Copyright (c) 2020 RustPython Team
-
-    Permission is hereby granted, free of charge, to any person obtaining a copy
-    of this software and associated documentation files (the "Software"), to deal
-    in the Software without restriction, including without limitation the rights
-    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-    copies of the Software, and to permit persons to whom the Software is
-    furnished to do so, subject to the following conditions:
-
-    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.
-  """
--- a/README.md
+++ b/README.md
--- a/benches/source_code_locator.rs
+++ b/benches/source_code_locator.rs
@@ -10,7 +10,7 @@ fn criterion_benchmark(c: &mut Criterion) {
        b.iter(|| {
            let rope = Rope::from_str(black_box(&contents));
            rope.line_to_char(black_box(4));
-        });
+        })
    });
 }

--- a/flake8_to_ruff/Cargo.lock
+++ b/flake8_to_ruff/Cargo.lock
@@ -771,7 +771,7 @@ checksum = "0ce7134b9999ecaf8bcd65542e436736ef32ddca1b3e06094cb6ec5755203b80"

 [[package]]
 name = "flake8_to_ruff"
-version = "0.0.145"
+version = "0.0.128"
 dependencies = [
 "anyhow",
 "clap",
@@ -1265,7 +1265,7 @@ checksum = "fc7fcc620a3bff7cdd7a365be3376c97191aeaccc2a603e600951e452615bf89"
 [[package]]
 name = "libcst"
 version = "0.1.0"
-source = "git+https://github.com/charliermarsh/LibCST?rev=f2f0b7a487a8725d161fe8b3ed73a6758b21e177#f2f0b7a487a8725d161fe8b3ed73a6758b21e177"
+source = "git+https://github.com/charliermarsh/LibCST?rev=a13ec97dd4eb925bde4d426c6e422582793b260c#a13ec97dd4eb925bde4d426c6e422582793b260c"
 dependencies = [
 "chic",
 "itertools",
@@ -1280,7 +1280,7 @@ dependencies = [
 [[package]]
 name = "libcst_derive"
 version = "0.1.0"
-source = "git+https://github.com/charliermarsh/LibCST?rev=f2f0b7a487a8725d161fe8b3ed73a6758b21e177#f2f0b7a487a8725d161fe8b3ed73a6758b21e177"
+source = "git+https://github.com/charliermarsh/LibCST?rev=a13ec97dd4eb925bde4d426c6e422582793b260c#a13ec97dd4eb925bde4d426c6e422582793b260c"
 dependencies = [
 "quote",
 "syn",
@@ -1975,7 +1975,7 @@ dependencies = [

 [[package]]
 name = "ruff"
-version = "0.0.145"
+version = "0.0.128"
 dependencies = [
 "anyhow",
 "bincode",
@@ -2028,7 +2028,7 @@ dependencies = [
 [[package]]
 name = "rustpython-ast"
 version = "0.1.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=f885db8c61514f069979861f6b3bd83292086231#f885db8c61514f069979861f6b3bd83292086231"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
 "num-bigint",
 "rustpython-common",
@@ -2038,7 +2038,7 @@ dependencies = [
 [[package]]
 name = "rustpython-common"
 version = "0.0.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=f885db8c61514f069979861f6b3bd83292086231#f885db8c61514f069979861f6b3bd83292086231"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
 "ascii",
 "cfg-if 1.0.0",
@@ -2061,7 +2061,7 @@ dependencies = [
 [[package]]
 name = "rustpython-compiler-core"
 version = "0.1.2"
-source = "git+https://github.com/RustPython/RustPython.git?rev=f885db8c61514f069979861f6b3bd83292086231#f885db8c61514f069979861f6b3bd83292086231"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
 "bincode",
 "bitflags",
@@ -2078,7 +2078,7 @@ dependencies = [
 [[package]]
 name = "rustpython-parser"
 version = "0.1.2"
-source = "git+https://github.com/RustPython/RustPython.git?rev=f885db8c61514f069979861f6b3bd83292086231#f885db8c61514f069979861f6b3bd83292086231"
+source = "git+https://github.com/RustPython/RustPython.git?rev=27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb#27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb"
 dependencies = [
 "ahash",
 "anyhow",
--- a/flake8_to_ruff/Cargo.toml
+++ b/flake8_to_ruff/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "flake8-to-ruff"
-version = "0.0.145-dev.0"
+version = "0.0.128-dev.0"
 edition = "2021"

 [lib]
@@ -10,10 +10,10 @@ name = "flake8_to_ruff"
 anyhow = { version = "1.0.66" }
 clap = { version = "4.0.1", features = ["derive"] }
 configparser = { version = "3.0.2" }
+fnv = { version = "1.0.7" }
 once_cell = { version = "1.16.0" }
 regex = { version = "1.6.0" }
 ruff = { path = "..", default-features = false }
-rustc-hash = { version = "1.1.0" }
 serde = { version = "1.0.147", features = ["derive"] }
 serde_json = { version = "1.0.87" }
 toml = { version = "0.5.9" }
--- a/flake8_to_ruff/pyproject.toml
+++ b/flake8_to_ruff/pyproject.toml
@@ -25,7 +25,7 @@ requires-python = ">=3.7"
 repository = "https://github.com/charliermarsh/ruff#subdirectory=crates/flake8_to_ruff"

 [build-system]
-requires = ["maturin>=0.14,<0.15"]
+requires = ["maturin>=0.13,<0.14"]
 build-backend = "maturin"

 [tool.maturin]
--- a/flake8_to_ruff/src/converter.rs
+++ b/flake8_to_ruff/src/converter.rs
@@ -18,7 +18,7 @@ pub fn convert(
    plugins: Option<Vec<Plugin>>,
 ) -> Result<Pyproject> {
    // Extract all referenced check code prefixes, to power plugin inference.
-    let mut referenced_codes: BTreeSet<CheckCodePrefix> = BTreeSet::default();
+    let mut referenced_codes: BTreeSet<CheckCodePrefix> = Default::default();
    for (key, value) in flake8 {
        if let Some(value) = value {
            match key.as_str() {
@@ -70,13 +70,13 @@ pub fn convert(
        .unwrap_or_default();

    // Parse each supported option.
-    let mut options = Options::default();
-    let mut flake8_annotations = flake8_annotations::settings::Options::default();
-    let mut flake8_bugbear = flake8_bugbear::settings::Options::default();
-    let mut flake8_quotes = flake8_quotes::settings::Options::default();
-    let mut flake8_tidy_imports = flake8_tidy_imports::settings::Options::default();
-    let mut mccabe = mccabe::settings::Options::default();
-    let mut pep8_naming = pep8_naming::settings::Options::default();
+    let mut options: Options = Default::default();
+    let mut flake8_annotations: flake8_annotations::settings::Options = Default::default();
+    let mut flake8_bugbear: flake8_bugbear::settings::Options = Default::default();
+    let mut flake8_quotes: flake8_quotes::settings::Options = Default::default();
+    let mut flake8_tidy_imports: flake8_tidy_imports::settings::Options = Default::default();
+    let mut mccabe: mccabe::settings::Options = Default::default();
+    let mut pep8_naming: pep8_naming::settings::Options = Default::default();
    for (key, value) in flake8 {
        if let Some(value) = value {
            match key.as_str() {
@@ -110,7 +110,7 @@ pub fn convert(
                    match parser::parse_files_to_codes_mapping(value.as_ref()) {
                        Ok(per_file_ignores) => {
                            options.per_file_ignores =
-                                Some(parser::collect_per_file_ignores(per_file_ignores));
+                                Some(parser::collect_per_file_ignores(per_file_ignores))
                        }
                        Err(e) => eprintln!("Unable to parse '{key}' property: {e}"),
                    }
@@ -181,7 +181,7 @@ pub fn convert(
                "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);
+                        flake8_tidy_imports.ban_relative_imports = Some(Strictness::Parents)
                    }
                    _ => eprintln!("Unexpected '{key}' value: {value}"),
                },
@@ -203,22 +203,22 @@ pub fn convert(
    // Deduplicate and sort.
    options.select = Some(Vec::from_iter(select));
    options.ignore = Some(Vec::from_iter(ignore));
-    if flake8_annotations != flake8_annotations::settings::Options::default() {
+    if flake8_annotations != Default::default() {
        options.flake8_annotations = Some(flake8_annotations);
    }
-    if flake8_bugbear != flake8_bugbear::settings::Options::default() {
+    if flake8_bugbear != Default::default() {
        options.flake8_bugbear = Some(flake8_bugbear);
    }
-    if flake8_quotes != flake8_quotes::settings::Options::default() {
+    if flake8_quotes != Default::default() {
        options.flake8_quotes = Some(flake8_quotes);
    }
-    if flake8_tidy_imports != flake8_tidy_imports::settings::Options::default() {
+    if flake8_tidy_imports != Default::default() {
        options.flake8_tidy_imports = Some(flake8_tidy_imports);
    }
-    if mccabe != mccabe::settings::Options::default() {
+    if mccabe != Default::default() {
        options.mccabe = Some(mccabe);
    }
-    if pep8_naming != pep8_naming::settings::Options::default() {
+    if pep8_naming != Default::default() {
        options.pep8_naming = Some(pep8_naming);
    }

--- a/flake8_to_ruff/src/lib.rs
+++ b/flake8_to_ruff/src/lib.rs
@@ -1,15 +1,4 @@
-#![allow(
-    clippy::collapsible_else_if,
-    clippy::collapsible_if,
-    clippy::implicit_hasher,
-    clippy::match_same_arms,
-    clippy::missing_errors_doc,
-    clippy::missing_panics_doc,
-    clippy::module_name_repetitions,
-    clippy::must_use_candidate,
-    clippy::similar_names,
-    clippy::too_many_lines
-)]
+#![allow(clippy::collapsible_if, clippy::collapsible_else_if)]

 pub mod converter;
 mod parser;
--- a/flake8_to_ruff/src/main.rs
+++ b/flake8_to_ruff/src/main.rs
@@ -1,16 +1,4 @@
 //! Utility to generate Ruff's pyproject.toml section from a Flake8 INI file.
-#![allow(
-    clippy::collapsible_else_if,
-    clippy::collapsible_if,
-    clippy::implicit_hasher,
-    clippy::match_same_arms,
-    clippy::missing_errors_doc,
-    clippy::missing_panics_doc,
-    clippy::module_name_repetitions,
-    clippy::must_use_candidate,
-    clippy::similar_names,
-    clippy::too_many_lines
-)]

 use std::path::PathBuf;

--- a/flake8_to_ruff/src/parser.rs
+++ b/flake8_to_ruff/src/parser.rs
@@ -1,11 +1,11 @@
 use std::str::FromStr;

 use anyhow::Result;
+use fnv::FnvHashMap;
 use once_cell::sync::Lazy;
 use regex::Regex;
 use ruff::checks_gen::CheckCodePrefix;
 use ruff::settings::types::PatternPrefixPair;
-use rustc_hash::FxHashMap;

 static COMMA_SEPARATED_LIST_RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"[,\s]").unwrap());

@@ -31,7 +31,7 @@ pub fn parse_prefix_codes(value: &str) -> Vec<CheckCodePrefix> {
 pub fn parse_strings(value: &str) -> Vec<String> {
    COMMA_SEPARATED_LIST_RE
        .split(value)
-        .map(str::trim)
+        .map(|part| part.trim())
        .filter(|part| !part.is_empty())
        .map(String::from)
        .collect()
@@ -92,7 +92,7 @@ impl State {
                        });
                    }
                }
-                Err(_) => eprintln!("Skipping unrecognized prefix: {code}"),
+                Err(_) => eprintln!("Skipping unrecognized prefix: {}", code),
            }
        }
        codes
@@ -129,14 +129,14 @@ fn tokenize_files_to_codes_mapping(value: &str) -> Vec<Token> {
    }
    tokens.push(Token {
        token_name: TokenType::Eof,
-        src: String::new(),
+        src: "".to_string(),
    });
    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>
+/// See: https://github.com/PyCQA/flake8/blob/7dfe99616fc2f07c0017df2ba5fa884158f3ea8a/src/flake8/utils.py#L45
 pub fn parse_files_to_codes_mapping(value: &str) -> Result<Vec<PatternPrefixPair>> {
    if value.trim().is_empty() {
        return Ok(vec![]);
@@ -179,8 +179,8 @@ pub fn parse_files_to_codes_mapping(value: &str) -> Result<Vec<PatternPrefixPair
 /// Collect a list of `PatternPrefixPair` structs as a `BTreeMap`.
 pub fn collect_per_file_ignores(
    pairs: Vec<PatternPrefixPair>,
-) -> FxHashMap<String, Vec<CheckCodePrefix>> {
-    let mut per_file_ignores: FxHashMap<String, Vec<CheckCodePrefix>> = FxHashMap::default();
+) -> FnvHashMap<String, Vec<CheckCodePrefix>> {
+    let mut per_file_ignores: FnvHashMap<String, Vec<CheckCodePrefix>> = FnvHashMap::default();
    for pair in pairs {
        per_file_ignores
            .entry(pair.pattern)
--- a/flake8_to_ruff/src/plugin.rs
+++ b/flake8_to_ruff/src/plugin.rs
@@ -6,19 +6,17 @@ use ruff::checks_gen::CheckCodePrefix;

 #[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
 pub enum Plugin {
-    Flake8Annotations,
    Flake8Bandit,
-    Flake8BlindExcept,
    Flake8Bugbear,
    Flake8Builtins,
    Flake8Comprehensions,
-    Flake8Debugger,
    Flake8Docstrings,
-    Flake8Eradicate,
+    Flake8TidyImports,
    Flake8Print,
    Flake8Quotes,
-    Flake8TidyImports,
+    Flake8Annotations,
    McCabe,
+    Flake8BlindExcept,
    PEP8Naming,
    Pyupgrade,
 }
@@ -28,18 +26,16 @@ impl FromStr for Plugin {

    fn from_str(string: &str) -> Result<Self, Self::Err> {
        match string {
-            "flake8-annotations" => Ok(Plugin::Flake8Annotations),
            "flake8-bandit" => Ok(Plugin::Flake8Bandit),
-            "flake8-blind-except" => Ok(Plugin::Flake8BlindExcept),
            "flake8-bugbear" => Ok(Plugin::Flake8Bugbear),
            "flake8-builtins" => Ok(Plugin::Flake8Builtins),
            "flake8-comprehensions" => Ok(Plugin::Flake8Comprehensions),
-            "flake8-debugger" => Ok(Plugin::Flake8Debugger),
            "flake8-docstrings" => Ok(Plugin::Flake8Docstrings),
-            "flake8-eradicate" => Ok(Plugin::Flake8BlindExcept),
+            "flake8-tidy-imports" => Ok(Plugin::Flake8TidyImports),
            "flake8-print" => Ok(Plugin::Flake8Print),
            "flake8-quotes" => Ok(Plugin::Flake8Quotes),
-            "flake8-tidy-imports" => Ok(Plugin::Flake8TidyImports),
+            "flake8-annotations" => Ok(Plugin::Flake8Annotations),
+            "flake8-blind-except" => Ok(Plugin::Flake8BlindExcept),
            "mccabe" => Ok(Plugin::McCabe),
            "pep8-naming" => Ok(Plugin::PEP8Naming),
            "pyupgrade" => Ok(Plugin::Pyupgrade),
@@ -51,18 +47,16 @@ impl FromStr for Plugin {
 impl Plugin {
    pub fn default(&self) -> CheckCodePrefix {
        match self {
-            Plugin::Flake8Annotations => CheckCodePrefix::ANN,
            Plugin::Flake8Bandit => CheckCodePrefix::S,
-            Plugin::Flake8BlindExcept => CheckCodePrefix::BLE,
            Plugin::Flake8Bugbear => CheckCodePrefix::B,
            Plugin::Flake8Builtins => CheckCodePrefix::A,
            Plugin::Flake8Comprehensions => CheckCodePrefix::C4,
-            Plugin::Flake8Debugger => CheckCodePrefix::T1,
            Plugin::Flake8Docstrings => CheckCodePrefix::D,
-            Plugin::Flake8Eradicate => CheckCodePrefix::ERA,
-            Plugin::Flake8Print => CheckCodePrefix::T2,
-            Plugin::Flake8Quotes => CheckCodePrefix::Q,
            Plugin::Flake8TidyImports => CheckCodePrefix::I25,
+            Plugin::Flake8Print => CheckCodePrefix::T,
+            Plugin::Flake8Quotes => CheckCodePrefix::Q,
+            Plugin::Flake8Annotations => CheckCodePrefix::ANN,
+            Plugin::Flake8BlindExcept => CheckCodePrefix::BLE,
            Plugin::McCabe => CheckCodePrefix::C9,
            Plugin::PEP8Naming => CheckCodePrefix::N,
            Plugin::Pyupgrade => CheckCodePrefix::U,
@@ -71,13 +65,10 @@ impl Plugin {

    pub fn select(&self, flake8: &HashMap<String, Option<String>>) -> Vec<CheckCodePrefix> {
        match self {
-            Plugin::Flake8Annotations => vec![CheckCodePrefix::ANN],
            Plugin::Flake8Bandit => vec![CheckCodePrefix::S],
-            Plugin::Flake8BlindExcept => vec![CheckCodePrefix::BLE],
            Plugin::Flake8Bugbear => vec![CheckCodePrefix::B],
            Plugin::Flake8Builtins => vec![CheckCodePrefix::A],
            Plugin::Flake8Comprehensions => vec![CheckCodePrefix::C4],
-            Plugin::Flake8Debugger => vec![CheckCodePrefix::T1],
            Plugin::Flake8Docstrings => {
                // Use the user-provided docstring.
                for key in ["docstring-convention", "docstring_convention"] {
@@ -94,10 +85,11 @@ impl Plugin {
                // Default to PEP8.
                DocstringConvention::PEP8.select()
            }
-            Plugin::Flake8Eradicate => vec![CheckCodePrefix::ERA],
-            Plugin::Flake8Print => vec![CheckCodePrefix::T2],
-            Plugin::Flake8Quotes => vec![CheckCodePrefix::Q],
            Plugin::Flake8TidyImports => vec![CheckCodePrefix::I25],
+            Plugin::Flake8Print => vec![CheckCodePrefix::T],
+            Plugin::Flake8Quotes => vec![CheckCodePrefix::Q],
+            Plugin::Flake8Annotations => vec![CheckCodePrefix::ANN],
+            Plugin::Flake8BlindExcept => vec![CheckCodePrefix::BLE],
            Plugin::McCabe => vec![CheckCodePrefix::C9],
            Plugin::PEP8Naming => vec![CheckCodePrefix::N],
            Plugin::Pyupgrade => vec![CheckCodePrefix::U],
@@ -285,6 +277,31 @@ pub fn infer_plugins_from_options(flake8: &HashMap<String, Option<String>>) -> V
    let mut plugins = BTreeSet::new();
    for key in flake8.keys() {
        match key.as_str() {
+            // flake8-docstrings
+            "docstring-convention" | "docstring_convention" => {
+                plugins.insert(Plugin::Flake8Docstrings);
+            }
+            // flake8-bugbear
+            "extend-immutable-calls" | "extend_immutable_calls" => {
+                plugins.insert(Plugin::Flake8Bugbear);
+            }
+            // flake8-builtins
+            "builtins-ignorelist" | "builtins_ignorelist" => {
+                plugins.insert(Plugin::Flake8Builtins);
+            }
+            // 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-annotations
            "suppress-none-returning" | "suppress_none_returning" => {
                plugins.insert(Plugin::Flake8Annotations);
@@ -310,41 +327,6 @@ pub fn infer_plugins_from_options(flake8: &HashMap<String, Option<String>>) -> V
            "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-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);
@@ -378,18 +360,16 @@ pub fn infer_plugins_from_options(flake8: &HashMap<String, Option<String>>) -> V
 /// `flake8-annotations` is active.
 pub fn infer_plugins_from_codes(codes: &BTreeSet<CheckCodePrefix>) -> Vec<Plugin> {
    [
-        Plugin::Flake8Annotations,
        Plugin::Flake8Bandit,
-        Plugin::Flake8BlindExcept,
        Plugin::Flake8Bugbear,
        Plugin::Flake8Builtins,
        Plugin::Flake8Comprehensions,
-        Plugin::Flake8Debugger,
        Plugin::Flake8Docstrings,
-        Plugin::Flake8Eradicate,
+        Plugin::Flake8TidyImports,
        Plugin::Flake8Print,
        Plugin::Flake8Quotes,
-        Plugin::Flake8TidyImports,
+        Plugin::Flake8Annotations,
+        Plugin::Flake8BlindExcept,
        Plugin::PEP8Naming,
        Plugin::Pyupgrade,
    ]
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,11 +25,12 @@ requires-python = ">=3.7"
 repository = "https://github.com/charliermarsh/ruff"

 [build-system]
-requires = ["maturin>=0.14,<0.15"]
+requires = ["maturin>=0.13,<0.14"]
 build-backend = "maturin"

 [tool.maturin]
 bindings = "bin"
+sdist-include = ["Cargo.lock"]
 strip = true

 [tool.isort]
--- a/resources/test/fixtures/B006_B008.py
+++ b/resources/test/fixtures/B006_B008.py
@@ -185,23 +185,3 @@ def nested_b008(a=random.randint(0, dt.datetime.now().year)):
 # Ignore lambda contents since they are evaluated at call time.
 def foo(f=lambda x: print(x)):
    f(1)
-
-
-from collections import abc
-from typing import Annotated, Dict, Optional, Sequence, Union, Set
-
-
-def immutable_annotations(
-    a: Sequence[int] | None = [],
-    b: Optional[abc.Mapping[int, int]] = {},
-    c: Annotated[Union[abc.Set[str], abc.Sized], "annotation"] = set(),
-):
-    pass
-
-
-def mutable_annotations(
-    a: list[int] | None = [],
-    b: Optional[Dict[int, int]] = {},
-    c: Annotated[Union[Set[str], abc.Sized], "annotation"] = set(),
-):
-    pass
--- a/resources/test/fixtures/B009_B010.py
+++ b/resources/test/fixtures/B009_B010.py
@@ -34,4 +34,3 @@ setattr(foo, "bar", None)
 setattr(foo, "_123abc", None)
 setattr(foo, "abc123", None)
 setattr(foo, r"abc123", None)
-setattr(foo.bar, r"baz", None)
--- a/resources/test/fixtures/B023.py
+++ b/resources/test/fixtures/B023.py
@@ -1,82 +0,0 @@
-"""
-Should emit:
-B023 - on lines 12, 13, 16, 28, 29, 30, 31, 40, 42, 50, 51, 52, 53, 61, 68.
-"""
-
-functions = []
-z = 0
-
-for x in range(3):
-    y = x + 1
-    # Subject to late-binding problems
-    functions.append(lambda: x)
-    functions.append(lambda: y)  # not just the loop var
-
-    def f_bad_1():
-        return x
-
-    # Actually OK
-    functions.append(lambda x: x * 2)
-    functions.append(lambda x=x: x)
-    functions.append(lambda: z)  # OK because not assigned in the loop
-
-    def f_ok_1(x):
-        return x * 2
-
-
-def check_inside_functions_too():
-    ls = [lambda: x for x in range(2)]
-    st = {lambda: x for x in range(2)}
-    gn = (lambda: x for x in range(2))
-    dt = {x: lambda: x for x in range(2)}
-
-
-async def pointless_async_iterable():
-    yield 1
-
-
-async def container_for_problems():
-    async for x in pointless_async_iterable():
-        functions.append(lambda: x)
-
-    [lambda: x async for x in pointless_async_iterable()]
-
-
-a = 10
-b = 0
-while True:
-    a = a_ = a - 1
-    b += 1
-    functions.append(lambda: a)
-    functions.append(lambda: a_)
-    functions.append(lambda: b)
-    functions.append(lambda: c)  # not a name error because of late binding!
-    c: bool = a > 3
-    if not c:
-        break
-
-# Nested loops should not duplicate reports
-for j in range(2):
-    for k in range(3):
-        lambda: j * k
-
-
-for j, k, l in [(1, 2, 3)]:
-
-    def f():
-        j = None  # OK because it's an assignment
-        [l for k in range(2)]  # error for l, not for k
-
-        assert a and functions
-
-    a.attribute = 1  # modifying an attribute doesn't make it a loop variable
-    functions[0] = lambda: None  # same for an element
-
-for var in range(2):
-
-    def explicit_capture(captured=var):
-        return captured
-
-
-for i in range(3):
-    lambda: f"{i}"
--- a/resources/test/fixtures/B904.py
+++ b/resources/test/fixtures/B904.py
@@ -1,55 +0,0 @@
-"""
-Should emit:
-B904 - on lines 10, 11 and 16
-"""
-
-try:
-    raise ValueError
-except ValueError:
-    if "abc":
-        raise TypeError
-    raise UserWarning
-except AssertionError:
-    raise  # Bare `raise` should not be an error
-except Exception as err:
-    assert err
-    raise Exception("No cause here...")
-except BaseException as base_err:
-    # Might use this instead of bare raise with the `.with_traceback()` method
-    raise base_err
-finally:
-    raise Exception("Nothing to chain from, so no warning here")
-
-try:
-    raise ValueError
-except ValueError:
-    # should not emit, since we are not raising something
-    def proxy():
-        raise NameError
-
-
-try:
-    from preferred_library import Thing
-except ImportError:
-    try:
-        from fallback_library import Thing
-    except ImportError:
-
-        class Thing:
-            def __getattr__(self, name):
-                # same as the case above, should not emit.
-                raise AttributeError
-
-
-try:
-    from preferred_library import Thing
-except ImportError:
-    try:
-        from fallback_library import Thing
-    except ImportError:
-
-        def context_switch():
-            try:
-                raise ValueError
-            except ValueError:
-                raise
--- a/resources/test/fixtures/C901.py
+++ b/resources/test/fixtures/C901.py
@@ -106,33 +106,3 @@ async def foobar(a, b, c):
 # Complexity = 1
 def annotated_assign():
    x: Any = None
-
-
-# Complexity = 9
-class Class:
-    def handle(self, *args, **options):
-        if args:
-            return
-
-        class ServiceProvider:
-            def a(self):
-                pass
-
-            def b(self, data):
-                if not args:
-                    pass
-
-        class Logger:
-            def c(*args, **kwargs):
-                pass
-
-            def error(self, message):
-                pass
-
-            def info(self, message):
-                pass
-
-            def exception(self):
-                pass
-
-        return ServiceProvider(Logger())
--- a/resources/test/fixtures/D.py
+++ b/resources/test/fixtures/D.py
@@ -3,7 +3,6 @@ from functools import wraps
 import os
 from .expected import Expectation
 from typing import overload
-from typing_extensions import override


 expectation = Expectation()
@@ -43,13 +42,9 @@ class class_:
           "D418: Function/ Method decorated with @overload"
           " shouldn't contain a docstring")

-    @override
-    def overridden_method(a):
-        return str(a)
-
    @property
    def foo(self):
-        """The foo of the thing, which isn't in imperative mood."""
+        """The foo of the thing, which isn't in imperitive mood."""
        return "hello"

    @expect('D102: Missing docstring in public method')
--- a/resources/test/fixtures/E501.py
+++ b/resources/test/fixtures/E501.py
@@ -49,9 +49,3 @@ sit amet  consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labor
 sit amet  consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
 """,  # noqa: E501
 }
-
-# OK
-# A very long URL: https://loooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooong.url.com
-
-# OK
-# https://loooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooong.url.com
--- a/resources/test/fixtures/ERA001.py
+++ b/resources/test/fixtures/ERA001.py
@@ -1,13 +0,0 @@
-#import os
-# from foo import junk
-#a = 3
-a = 4
-#foo(1, 2, 3)
-
-def foo(x, y, z):
-    contentet = 1 # print('hello')
-    print(x, y, z)
-
-    # This is a real comment.
-    #return True
-    return False
--- a/resources/test/fixtures/F502.py
+++ b/resources/test/fixtures/F502.py
@@ -1,13 +0,0 @@
-dog = {"bob": "bob"}
-
-"%(bob)s" % dog
-"%(bob)s" % {"bob": "bob"}
-"%(bob)s" % {**{"bob": "bob"}}
-"%(bob)s" % ["bob"]  # F202
-"%(bob)s" % ("bob",)  # F202
-"%(bob)s" % {"bob"}  # F202
-"%(bob)s" % [*["bob"]]  # F202
-"%(bob)s" % {"bob": "bob" for _ in range(1)}
-"%(bob)s" % ["bob" for _ in range(1)]  # F202
-"%(bob)s" % ("bob" for _ in range(1))  # F202
-"%(bob)s" % {"bob" for _ in range(1)}  # F202
--- a/resources/test/fixtures/F503.py
+++ b/resources/test/fixtures/F503.py
@@ -1,26 +0,0 @@
-dog = {"bob": "bob"}
-
-# Single placeholder always fine
-"%s" % dog
-"%s" % {"bob": "bob"}
-"%s" % {**{"bob": "bob"}}
-"%s" % ["bob"]
-"%s" % ("bob",)
-"%s" % {"bob"}
-"%s" % [*["bob"]]
-"%s" % {"bob": "bob" for _ in range(1)}
-"%s" % ["bob" for _ in range(1)]
-"%s" % ("bob" for _ in range(1))
-"%s" % {"bob" for _ in range(1)}
-# Multiple placeholders
-"%s %s" % dog
-"%s %s" % {"bob": "bob"}  # F503
-"%s %s" % {**{"bob": "bob"}}  # F503
-"%s %s" % ["bob"]
-"%s %s" % ("bob",)
-"%s %s" % {"bob"}
-"%s %s" % [*["bob"]]
-"%s %s" % {"bob": "bob" for _ in range(1)}  # F503
-"%s %s" % ["bob" for _ in range(1)]
-"%s %s" % ("bob" for _ in range(1))
-"%s %s" % {"bob" for _ in range(1)}
--- a/resources/test/fixtures/F504.py
+++ b/resources/test/fixtures/F504.py
@@ -1,6 +0,0 @@
-# Ruff has no way of knowing if the following are F505s
-a = "wrong"
-"%(a)s %(c)s" % {a: "?", "b": "!"}  # F504 ("b" not used)
-
-hidden = {"a": "!"}
-"%(a)s %(c)s" % {"x": 1, **hidden}  # Ok (cannot see through splat)
--- a/resources/test/fixtures/F50x.py
+++ b/resources/test/fixtures/F50x.py
@@ -1,25 +0,0 @@
-'%(foo)' % {'foo': 'bar'}  # F501
-'%s %(foo)s' % {'foo': 'bar'}  # F506
-'%(foo)s %s' % {'foo': 'bar'}  # F506
-'%j' % (1,)  # F509
-'%s %s' % (1,)  # F507
-'%s %s' % (1, 2, 3)  # F507
-'%(bar)s' % {}  # F505
-'%(bar)s' % {'bar': 1, 'baz': 2}  # F504
-'%(bar)s' % (1, 2, 3)  # F502
-'%s %s' % {'k': 'v'}  # F503
-'%(bar)*s' % {'bar': 'baz'}  # F506, F508
-
-# ok: single %s with mapping
-'%s' % {'foo': 'bar', 'baz': 'womp'}
-# ok: %% should not count towards placeholder count
-'%% %s %% %s' % (1, 2)
-# ok: * consumes one positional argument
-'%.*f' % (2, 1.1234)
-'%*.*f' % (5, 2, 3.1234)
-# ok *args and **kwargs
-a = []
-'%s %s' % [*a]
-'%s %s' % (*a,)
-k = {}
-'%(k)s' % {**k}
--- a/resources/test/fixtures/F521.py
+++ b/resources/test/fixtures/F521.py
@@ -1,21 +0,0 @@
-"{".format(1)
-"}".format(1)
-"{foo[}".format(foo=1)
-# too much string recursion (placeholder-in-placeholder)
-"{:{:{}}}".format(1, 2, 3)
-# ruff picks these issues up, but flake8 doesn't
-"{foo[]}".format(foo={"": 1})
-"{foo..}".format(foo=1)
-"{foo..bar}".format(foo=1)
-
-# The following are all "good" uses of .format
-"{.__class__}".format("")
-"{foo[bar]}".format(foo={"bar": "barv"})
-"{[bar]}".format({"bar": "barv"})
-"{:{}} {}".format(1, 15, 2)
-"{:2}".format(1)
-"{foo}-{}".format(1, foo=2)
-a = ()
-"{}".format(*a)
-k = {}
-"{foo}".format(**k)
--- a/resources/test/fixtures/F522.py
+++ b/resources/test/fixtures/F522.py
@@ -1,4 +0,0 @@
-"{}".format(1, bar=2)  # F522
-"{bar}{}".format(1, bar=2, spam=3)  # F522
-"{bar:{spam}}".format(bar=2, spam=3)  # No issues
-"{bar:{spam}}".format(bar=2, spam=3, eggs=4, ham=5)  # F522
--- a/resources/test/fixtures/F523.py
+++ b/resources/test/fixtures/F523.py
@@ -1,12 +0,0 @@
-# With indexes
-"{0}".format(1, 2)  # F523
-"{1}".format(1, 2, 3)  # F523
-"{1:{0}}".format(1, 2)  # No issues
-"{1:{0}}".format(1, 2, 3)  # F523
-"{0}{2}".format(1, 2)  # F523, # F524
-
-# With no indexes
-"{}".format(1, 2)  # F523
-"{}".format(1, 2, 3)  # F523
-"{:{}}".format(1, 2)  # No issues
-"{:{}}".format(1, 2, 3)  # F523
--- a/resources/test/fixtures/F524.py
+++ b/resources/test/fixtures/F524.py
@@ -1,6 +0,0 @@
-"{} {}".format(1)  # F524
-"{2}".format()  # F524
-"{bar}".format()  # F524
-"{0} {bar}".format(1)  # F524
-"{0} {bar}".format()  # F524
-"{bar} {0}".format()  # F524
--- a/resources/test/fixtures/F525.py
+++ b/resources/test/fixtures/F525.py
@@ -1,2 +0,0 @@
-"{} {1}".format(1, 2)  # F525
-"{0} {}".format(1, 2)  # F523, F525
--- a/resources/test/fixtures/F821_3.py
+++ b/resources/test/fixtures/F821_3.py
@@ -12,13 +12,3 @@ x: dict["key", "value"]

 # OK
 x: dict[str, str]
-
-# OK
-def unimportant(name):
-    pass
-
-
-def dang(dict, set, list):
-    unimportant(name=dict["name"])
-    unimportant(name=set["name"])
-    unimportant(name=list["name"])
--- a/resources/test/fixtures/F841.py
+++ b/resources/test/fixtures/F841.py
@@ -35,33 +35,3 @@ def f4():
    _ = 1
    __ = 1
    _discarded = 1
-
-
-a = 1
-
-
-def f5():
-    global a
-
-    # Used in `f7` via `nonlocal`.
-    b = 1
-
-    def f6():
-        # F841
-        b = 1
-
-    def f7():
-        nonlocal b
-
-
-def f6():
-    annotations = []
-    assert len([annotations for annotations in annotations])
-
-
-def f7():
-    def connect():
-        return None, None
-
-    with connect() as (connection, cursor):
-        cursor.execute("SELECT * FROM users")
--- a/resources/test/fixtures/FBT.py
+++ b/resources/test/fixtures/FBT.py
@@ -38,20 +38,5 @@ def function(
 def used(do):
    return do

-
 used("a", True)
 used(do=True)
-
-
-# Avoid FBT003 for explicitly allowed methods.
-"""
-FBT003 Boolean positional value on dict
-"""
-a = {"a": "b"}
-a.get("hello", False)
-{}.get("hello", False)
-{}.setdefault("hello", True)
-{}.pop("hello", False)
-{}.pop(True, False)
-dict.fromkeys(("world",), True)
-{}.deploy(True, False)
--- a/resources/test/fixtures/M001.py
+++ b/resources/test/fixtures/M001.py
@@ -18,14 +18,6 @@ def f() -> None:
    # Invalid (and unimplemented)
    d = 1  # noqa: F841, W191

-    # fmt: off
-    # Invalid - no space before #
-    d = 1# noqa: E501
-
-    # Invalid - many spaces before #
-    d = 1                       # noqa: E501
-    # fmt: on
-

 # Valid
 _ = """Lorem ipsum dolor sit amet.
--- a/resources/test/fixtures/N804.py
+++ b/resources/test/fixtures/N804.py
@@ -30,14 +30,6 @@ class Class:
    def __init_subclass__(self, default_name, **kwargs):
        ...

-    @classmethod
-    def class_method_with_positional_only_argument(cls, x, /, other):
-        ...
-
-    @classmethod
-    def bad_class_method_with_positional_only_argument(self, x, /, other):
-        ...
-

 class MetaClass(ABCMeta):
    def bad_method(self):
--- a/resources/test/fixtures/N807.py
+++ b/resources/test/fixtures/N807.py
@@ -10,27 +10,6 @@ def good__():
    pass


-def nested():
-    def __bad__():
-        pass
-
-    def __good():
-        pass
-
-    def good__():
-        pass
-
-
 class Class:
    def __good__(self):
        pass
-
-
-# https://peps.python.org/pep-0562/
-def __getattr__(name):
-    pass
-
-
-# https://peps.python.org/pep-0562/
-def __dir__():
-    pass
--- a/resources/test/fixtures/RUF101_0.py
+++ b/resources/test/fixtures/RUF101_0.py
@@ -1,5 +0,0 @@
-exit(0)
-
-
-def main():
-    exit(2)
--- a/resources/test/fixtures/RUF101_1.py
+++ b/resources/test/fixtures/RUF101_1.py
@@ -1,10 +0,0 @@
-import sys
-
-exit(0)
-
-
-def main():
-    exit(1)
-
-
-sys.exit(2)
--- a/resources/test/fixtures/RUF101_2.py
+++ b/resources/test/fixtures/RUF101_2.py
@@ -1,7 +0,0 @@
-import sys as sys2
-
-exit(0)
-
-
-def main():
-    exit(1)
--- a/resources/test/fixtures/RUF101_3.py
+++ b/resources/test/fixtures/RUF101_3.py
@@ -1,7 +0,0 @@
-from sys import exit
-
-exit(0)
-
-
-def main():
-    exit(1)
--- a/resources/test/fixtures/RUF101_4.py
+++ b/resources/test/fixtures/RUF101_4.py
@@ -1,7 +0,0 @@
-from sys import exit as exit2
-
-exit(0)
-
-
-def main():
-    exit(1)
--- a/resources/test/fixtures/RUF101_5.py
+++ b/resources/test/fixtures/RUF101_5.py
@@ -1,7 +0,0 @@
-from sys import *
-
-exit(0)
-
-
-def main():
-    exit(1)
--- a/resources/test/fixtures/RUF101_6.py
+++ b/resources/test/fixtures/RUF101_6.py
@@ -1,12 +0,0 @@
-exit(0)
-
-
-def exit(e):
-    pass
-
-
-exit(1)
-
-
-def main():
-    exit(2)
--- a/resources/test/fixtures/T100.py
+++ b/resources/test/fixtures/T100.py
@@ -1,14 +0,0 @@
-breakpoint()
-
-
-import pdb
-from builtins import breakpoint
-from pdb import set_trace as st
-from celery.contrib.rdb import set_trace
-from celery.contrib import rdb
-import celery.contrib.rdb
-
-
-breakpoint()
-st()
-set_trace()
--- a/resources/test/fixtures/U006.py
+++ b/resources/test/fixtures/U006.py
@@ -24,7 +24,3 @@ from typing import List as IList

 def f(x: IList[str]) -> None:
    ...
-
-
-def f(x: "List[str]") -> None:
-    ...
--- a/resources/test/fixtures/U007.py
+++ b/resources/test/fixtures/U007.py
@@ -1,43 +1,40 @@
-import typing
 from typing import Optional
-from typing import Union


 def f(x: Optional[str]) -> None:
    ...


+import typing
+
+
 def f(x: typing.Optional[str]) -> None:
    ...


+from typing import Union
+
+
 def f(x: Union[str, int, Union[float, bytes]]) -> None:
    ...


+import typing
+
+
 def f(x: typing.Union[str, int]) -> None:
    ...


-def f(x: typing.Union[(str, int)]) -> None:
-    ...
-
-
-def f(x: typing.Union[(str, int), float]) -> None:
-    ...
+from typing import Union


 def f(x: "Union[str, int, Union[float, bytes]]") -> None:
    ...


+import typing
+
+
 def f(x: "typing.Union[str, int]") -> None:
    ...
-
-
-def f(x: Union["str", int]) -> None:
-    ...
-
-
-def f(x: Union[("str", "int"), float]) -> None:
-    ...
--- a/resources/test/fixtures/U009_0.py
+++ b/resources/test/fixtures/U009_0.py
@@ -1,3 +1,3 @@
 # coding=utf8

-print("Hello world")
+print('Hello world')
--- a/resources/test/fixtures/U009_4.py
+++ b/resources/test/fixtures/U009_4.py
@@ -1,3 +0,0 @@
-# coding=utf8 # noqa: U009
-
-print("Hello world")
--- a/resources/test/fixtures/U013.py
+++ b/resources/test/fixtures/U013.py
@@ -1,5 +1,4 @@
 from typing import TypedDict, NotRequired, Literal
-import typing

 # dict literal
 MyType1 = TypedDict("MyType1", {"a": int, "b": str})
@@ -28,6 +27,3 @@ MyType9 = TypedDict("MyType9", {"in": int, "x-y": int})

 # using Literal type
 MyType10 = TypedDict("MyType10", {"key": Literal["value"]})
-
-# using namespace TypedDict
-MyType11 = typing.TypedDict("MyType11", {"key": int})
--- a/resources/test/fixtures/U014.py
+++ b/resources/test/fixtures/U014.py
@@ -1,22 +0,0 @@
-from typing import NamedTuple
-import typing
-
-# with complex annotations
-NT1 = NamedTuple("NT1", [("a", int), ("b", tuple[str, ...])])
-
-# with default values as list
-NT2 = NamedTuple(
-    "NT2",
-    [("a", int), ("b", str), ("c", list[bool])],
-    defaults=["foo", [True]],
-)
-
-# with namespace
-NT3 = typing.NamedTuple("NT3", [("a", int), ("b", str)])
-
-# with too many default values
-NT4 = NamedTuple(
-    "NT4",
-    [("a", int), ("b", str)],
-    defaults=[1, "bar", "baz"],
-)
--- a/resources/test/fixtures/U015.py
+++ b/resources/test/fixtures/U015.py
@@ -1,80 +0,0 @@
-open("foo", "U")
-open("foo", "Ur")
-open("foo", "Ub")
-open("foo", "rUb")
-open("foo", "r")
-open("foo", "rt")
-open("f", "r", encoding="UTF-8")
-open("f", "wt")
-
-with open("foo", "U") as f:
-    pass
-with open("foo", "Ur") as f:
-    pass
-with open("foo", "Ub") as f:
-    pass
-with open("foo", "rUb") as f:
-    pass
-with open("foo", "r") as f:
-    pass
-with open("foo", "rt") as f:
-    pass
-with open("foo", "r", encoding="UTF-8") as f:
-    pass
-with open("foo", "wt") as f:
-    pass
-
-open(f("a", "b", "c"), "U")
-open(f("a", "b", "c"), "Ub")
-
-with open(f("a", "b", "c"), "U") as f:
-    pass
-with open(f("a", "b", "c"), "Ub") as f:
-    pass
-
-with open("foo", "U") as fa, open("bar", "U") as fb:
-    pass
-with open("foo", "Ub") as fa, open("bar", "Ub") as fb:
-    pass
-
-open("foo", mode="U")
-open(name="foo", mode="U")
-open(mode="U", name="foo")
-
-with open("foo", mode="U") as f:
-    pass
-with open(name="foo", mode="U") as f:
-    pass
-with open(mode="U", name="foo") as f:
-    pass
-
-open("foo", mode="Ub")
-open(name="foo", mode="Ub")
-open(mode="Ub", name="foo")
-
-with open("foo", mode="Ub") as f:
-    pass
-with open(name="foo", mode="Ub") as f:
-    pass
-with open(mode="Ub", name="foo") as f:
-    pass
-
-open(file="foo", mode='U', buffering=- 1, encoding=None, errors=None, newline=None, closefd=True, opener=None)
-open(file="foo", buffering=- 1, encoding=None, errors=None, newline=None, closefd=True, opener=None, mode='U')
-open(file="foo", buffering=- 1, encoding=None, errors=None, mode='U', newline=None, closefd=True, opener=None)
-open(mode='U', file="foo", buffering=- 1, encoding=None, errors=None, newline=None, closefd=True, opener=None)
-
-open(file="foo", mode='Ub', buffering=- 1, encoding=None, errors=None, newline=None, closefd=True, opener=None)
-open(file="foo", buffering=- 1, encoding=None, errors=None, newline=None, closefd=True, opener=None, mode='Ub')
-open(file="foo", buffering=- 1, encoding=None, errors=None, mode='Ub', newline=None, closefd=True, opener=None)
-open(mode='Ub', file="foo", buffering=- 1, encoding=None, errors=None, newline=None, closefd=True, opener=None)
-
-open = 1
-open("foo", "U")
-open("foo", "Ur")
-open("foo", "Ub")
-open("foo", "rUb")
-open("foo", "r")
-open("foo", "rt")
-open("f", "r", encoding="UTF-8")
-open("f", "wt")
--- a/resources/test/fixtures/canonical_google_examples.py
+++ b/resources/test/fixtures/canonical_google_examples.py
@@ -44,7 +44,7 @@ expectation.expected.add((
@expect("D407: Missing dashed underline after section ('Returns')",
        arg_count=3)
@expect("D413: Missing blank line after last section ('Raises')", arg_count=3)
-def fetch_bigtable_rows(big_table, keys, other_silly_variable=None, **kwargs):
+def fetch_bigtable_rows(big_table, keys, other_silly_variable=None):
    """Fetches rows from a Bigtable.

    Retrieves rows pertaining to the given keys from the Table instance
@@ -57,7 +57,6 @@ def fetch_bigtable_rows(big_table, keys, other_silly_variable=None, **kwargs):
            to fetch.
        other_silly_variable: Another optional variable, that has a much
            longer name than the other args, and which does nothing.
-        **kwargs: More keyword arguments.

    Returns:
        A dict mapping keys to the corresponding table row data
--- a/resources/test/fixtures/canonical_numpy_examples.py
+++ b/resources/test/fixtures/canonical_numpy_examples.py
@@ -73,7 +73,7 @@ expectation.expected.add((
        "(found 'A')", arg_count=3)
@expect("D413: Missing blank line after last section ('Examples')",
        arg_count=3)
-def foo(var1, var2, long_var_name='hi', **kwargs):
+def foo(var1, var2, long_var_name='hi'):
    r"""A one-line summary that does not use variable names.

    Several sentences providing an extended description. Refer to
@@ -91,8 +91,6 @@ def foo(var1, var2, long_var_name='hi', **kwargs):
        detail, e.g. ``(N,) ndarray`` or ``array_like``.
    long_var_name : {'hi', 'ho'}, optional
        Choices in brackets, default first when optional.
-    **kwargs : int
-        More keyword arguments.

    Returns
    -------
--- a/resources/test/fixtures/future_annotations.py
+++ b/resources/test/fixtures/future_annotations.py
@@ -1,7 +1,6 @@
 from __future__ import annotations

 from dataclasses import dataclass
-from typing import List, Optional

 from models import (
    Fruit,
@@ -29,12 +28,3 @@ class Foo:
    @classmethod
    def d(cls) -> Fruit:
        return cls(x=0, y=0)
-
-
-def f(x: int) -> List[int]:
-    y = List[int]()
-    y.append(x)
-    return y
-
-
-x: Optional[int] = None
--- a/resources/test/fixtures/isort/order_relative_imports_by_level.py
+++ b/resources/test/fixtures/isort/order_relative_imports_by_level.py
@@ -1,4 +0,0 @@
-from .a import a
-from ..a import a
-from ..b import a
-from .b import a
--- a/resources/test/fixtures/with_excluded_mdirectory/init.py
+++ b/resources/test/fixtures/with_excluded_mdirectory/init.py
--- a/resources/test/fixtures/with_excluded_mdirectory/migrations/init.py
+++ b/resources/test/fixtures/with_excluded_mdirectory/migrations/init.py
--- a/resources/test/fixtures/with_excluded_mdirectory/migrations/migration.py
+++ b/resources/test/fixtures/with_excluded_mdirectory/migrations/migration.py
--- a/ruff_dev/Cargo.toml
+++ b/ruff_dev/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ruff_dev"
-version = "0.0.145"
+version = "0.0.128"
 edition = "2021"

 [dependencies]
@@ -8,10 +8,10 @@ anyhow = { version = "1.0.66" }
 clap = { version = "4.0.1", features = ["derive"] }
 codegen = { version = "0.2.0" }
 itertools = { version = "0.10.5" }
-libcst = { git = "https://github.com/charliermarsh/LibCST", rev = "f2f0b7a487a8725d161fe8b3ed73a6758b21e177" }
+libcst = { git = "https://github.com/charliermarsh/LibCST", rev = "a13ec97dd4eb925bde4d426c6e422582793b260c" }
 ruff = { path = ".." }
-rustpython-ast = { features = ["unparse"], git = "https://github.com/RustPython/RustPython.git", rev = "f885db8c61514f069979861f6b3bd83292086231" }
-rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "f885db8c61514f069979861f6b3bd83292086231" }
-rustpython-parser = { features = ["lalrpop"], git = "https://github.com/RustPython/RustPython.git", rev = "f885db8c61514f069979861f6b3bd83292086231" }
+rustpython-ast = { features = ["unparse"], git = "https://github.com/RustPython/RustPython.git", rev = "27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb" }
+rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb" }
+rustpython-parser = { features = ["lalrpop"], git = "https://github.com/RustPython/RustPython.git", rev = "27bf82a2251d7e6ac6cd75e6ad51be12a53d84bb" }
 strum = { version = "0.24.1", features = ["strum_macros"] }
 strum_macros = { version = "0.24.3" }
--- a/ruff_dev/src/generate_check_code_prefix.rs
+++ b/ruff_dev/src/generate_check_code_prefix.rs
@@ -24,7 +24,7 @@ pub struct Cli {

 pub fn main(cli: &Cli) -> Result<()> {
    // Build up a map from prefix to matching CheckCodes.
-    let mut prefix_to_codes: BTreeMap<String, BTreeSet<CheckCode>> = BTreeMap::default();
+    let mut prefix_to_codes: BTreeMap<String, BTreeSet<CheckCode>> = Default::default();
    for check_code in CheckCode::iter() {
        let as_ref: String = check_code.as_ref().to_string();
        let prefix_len = as_ref
@@ -77,7 +77,6 @@ pub fn main(cli: &Cli) -> Result<()> {
        .arg_ref_self()
        .ret(Type::new("Vec<CheckCode>"))
        .vis("pub")
-        .line("#[allow(clippy::match_same_arms)]")
        .line("match self {");
    for (prefix, codes) in &prefix_to_codes {
        gen = gen.line(format!(
@@ -97,7 +96,6 @@ pub fn main(cli: &Cli) -> Result<()> {
        .arg_ref_self()
        .ret(Type::new("PrefixSpecificity"))
        .vis("pub")
-        .line("#[allow(clippy::match_same_arms)]")
        .line("match self {");
    for prefix in prefix_to_codes.keys() {
        let num_numeric = prefix.chars().filter(|char| char.is_numeric()).count();
@@ -106,7 +104,7 @@ pub fn main(cli: &Cli) -> Result<()> {
            2 => "Tens",
            1 => "Hundreds",
            0 => "Category",
-            _ => panic!("Invalid prefix: {prefix}"),
+            _ => panic!("Invalid prefix: {}", prefix),
        };
        gen = gen.line(format!(
            "CheckCodePrefix::{prefix} => PrefixSpecificity::{},",
@@ -117,8 +115,7 @@ pub fn main(cli: &Cli) -> Result<()> {

    // Construct the output contents.
    let mut output = String::new();
-    output
-        .push_str("//! File automatically generated by `examples/generate_check_code_prefix.rs`.");
+    output.push_str("//! File automatically generated by examples/generate_check_code_prefix.rs.");
    output.push('\n');
    output.push('\n');
    output.push_str("use serde::{{Serialize, Deserialize}};");
@@ -130,28 +127,13 @@ pub fn main(cli: &Cli) -> Result<()> {
    output.push('\n');
    output.push('\n');
    output.push_str(&scope.to_string());
-    output.push('\n');
-    output.push('\n');
-
-    // Add the list of output categories (not generated).
-    output.push_str("pub const CATEGORIES: &[CheckCodePrefix] = &[");
-    output.push('\n');
-    for prefix in prefix_to_codes.keys() {
-        if prefix.chars().all(char::is_alphabetic) {
-            output.push_str(&format!("CheckCodePrefix::{prefix},"));
-            output.push('\n');
-        }
-    }
-    output.push_str("];");
-    output.push('\n');
-    output.push('\n');

    // Write the output to `src/checks_gen.rs` (or stdout).
    if cli.dry_run {
-        println!("{output}");
+        println!("{}", output);
    } else {
        let mut f = OpenOptions::new().write(true).truncate(true).open(FILE)?;
-        write!(f, "{output}")?;
+        write!(f, "{}", output)?;
    }

    Ok(())
--- a/ruff_dev/src/generate_rules_table.rs
+++ b/ruff_dev/src/generate_rules_table.rs
@@ -61,7 +61,7 @@ pub fn main(cli: &Cli) -> Result<()> {
    }

    if cli.dry_run {
-        print!("{output}");
+        print!("{}", output);
    } else {
        // Read the existing file.
        let file = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
@@ -84,9 +84,9 @@ pub fn main(cli: &Cli) -> Result<()> {

        // Write the prefix, new contents, and suffix.
        let mut f = OpenOptions::new().write(true).truncate(true).open(&file)?;
-        write!(f, "{prefix}\n\n")?;
-        write!(f, "{output}")?;
-        write!(f, "{suffix}")?;
+        write!(f, "{}\n\n", prefix)?;
+        write!(f, "{}", output)?;
+        write!(f, "{}", suffix)?;
    }

    Ok(())
--- a/ruff_dev/src/generate_source_code.rs
+++ b/ruff_dev/src/generate_source_code.rs
@@ -19,7 +19,7 @@ pub fn main(cli: &Cli) -> Result<()> {
    let contents = fs::read_to_string(&cli.file)?;
    let python_ast = parser::parse_program(&contents, &cli.file.to_string_lossy())?;
    let mut generator = SourceGenerator::new();
-    generator.unparse_suite(&python_ast);
+    generator.unparse_suite(&python_ast)?;
    println!("{}", generator.generate()?);
    Ok(())
 }
--- a/ruff_dev/src/lib.rs
+++ b/ruff_dev/src/lib.rs
@@ -1,16 +1,3 @@
-#![allow(
-    clippy::collapsible_else_if,
-    clippy::collapsible_if,
-    clippy::implicit_hasher,
-    clippy::match_same_arms,
-    clippy::missing_errors_doc,
-    clippy::missing_panics_doc,
-    clippy::module_name_repetitions,
-    clippy::must_use_candidate,
-    clippy::similar_names,
-    clippy::too_many_lines
-)]
-
 pub mod generate_check_code_prefix;
 pub mod generate_rules_table;
 pub mod generate_source_code;
--- a/ruff_dev/src/main.rs
+++ b/ruff_dev/src/main.rs
@@ -1,16 +1,3 @@
-#![allow(
-    clippy::collapsible_else_if,
-    clippy::collapsible_if,
-    clippy::implicit_hasher,
-    clippy::match_same_arms,
-    clippy::missing_errors_doc,
-    clippy::missing_panics_doc,
-    clippy::module_name_repetitions,
-    clippy::must_use_candidate,
-    clippy::similar_names,
-    clippy::too_many_lines
-)]
-
 use anyhow::Result;
 use clap::{Parser, Subcommand};
 use ruff_dev::{
--- a/ruff_dev/src/print_ast.rs
+++ b/ruff_dev/src/print_ast.rs
@@ -17,6 +17,6 @@ pub struct Cli {
 pub fn main(cli: &Cli) -> Result<()> {
    let contents = fs::read_to_string(&cli.file)?;
    let python_ast = parser::parse_program(&contents, &cli.file.to_string_lossy())?;
-    println!("{python_ast:#?}");
+    println!("{:#?}", python_ast);
    Ok(())
 }
--- a/ruff_dev/src/print_cst.rs
+++ b/ruff_dev/src/print_cst.rs
@@ -1,4 +1,4 @@
-//! Print the `LibCST` CST for a given Python file.
+//! Print the LibCST CST for a given Python file.

 use std::fs;
 use std::path::PathBuf;
@@ -17,7 +17,7 @@ pub fn main(cli: &Cli) -> Result<()> {
    let contents = fs::read_to_string(&cli.file)?;
    match libcst_native::parse_module(&contents, None) {
        Ok(python_cst) => {
-            println!("{python_cst:#?}");
+            println!("{:#?}", python_cst);
            Ok(())
        }
        Err(_) => Err(anyhow::anyhow!("Failed to parse CST")),
--- a/ruff_dev/src/print_tokens.rs
+++ b/ruff_dev/src/print_tokens.rs
@@ -17,7 +17,7 @@ pub struct Cli {
 pub fn main(cli: &Cli) -> Result<()> {
    let contents = fs::read_to_string(&cli.file)?;
    for (_, tok, _) in lexer::make_tokenizer(&contents).flatten() {
-        println!("{tok:#?}");
+        println!("{:#?}", tok);
    }
    Ok(())
 }
--- a/src/ast/helpers.rs
+++ b/src/ast/helpers.rs
@@ -1,13 +1,9 @@
+use fnv::{FnvHashMap, FnvHashSet};
 use once_cell::sync::Lazy;
 use regex::Regex;
-use rustc_hash::{FxHashMap, FxHashSet};
-use rustpython_ast::{
-    Arguments, Excepthandler, ExcepthandlerKind, Expr, ExprKind, Location, Stmt, StmtKind,
-};
-
-use crate::ast::types::Range;
-use crate::SourceCodeLocator;
+use rustpython_ast::{Excepthandler, ExcepthandlerKind, Expr, ExprKind, Location, StmtKind};

+#[inline(always)]
 fn collect_call_path_inner<'a>(expr: &'a Expr, parts: &mut Vec<&'a str>) {
    match &expr.node {
        ExprKind::Call { func, .. } => {
@@ -25,6 +21,7 @@ fn collect_call_path_inner<'a>(expr: &'a Expr, parts: &mut Vec<&'a str>) {
 }

 /// Convert an `Expr` to its call path (like `List`, or `typing.List`).
+#[inline(always)]
 pub fn compose_call_path(expr: &Expr) -> Option<String> {
    let segments = collect_call_paths(expr);
    if segments.is_empty() {
@@ -35,6 +32,7 @@ pub fn compose_call_path(expr: &Expr) -> Option<String> {
 }

 /// Convert an `Expr` to its call path segments (like ["typing", "List"]).
+#[inline(always)]
 pub fn collect_call_paths(expr: &Expr) -> Vec<&str> {
    let mut segments = vec![];
    collect_call_path_inner(expr, &mut segments);
@@ -44,7 +42,7 @@ pub fn collect_call_paths(expr: &Expr) -> Vec<&str> {
 /// Rewrite any import aliases on a call path.
 pub fn dealias_call_path<'a>(
    call_path: Vec<&'a str>,
-    import_aliases: &FxHashMap<&str, &'a str>,
+    import_aliases: &FnvHashMap<&str, &'a str>,
 ) -> Vec<&'a str> {
    if let Some(head) = call_path.first() {
        if let Some(origin) = import_aliases.get(head) {
@@ -78,8 +76,8 @@ pub fn match_module_member(
    expr: &Expr,
    module: &str,
    member: &str,
-    from_imports: &FxHashMap<&str, FxHashSet<&str>>,
-    import_aliases: &FxHashMap<&str, &str>,
+    from_imports: &FnvHashMap<&str, FnvHashSet<&str>>,
+    import_aliases: &FnvHashMap<&str, &str>,
 ) -> bool {
    match_call_path(
        &dealias_call_path(collect_call_paths(expr), import_aliases),
@@ -96,7 +94,7 @@ pub fn match_call_path(
    call_path: &[&str],
    module: &str,
    member: &str,
-    from_imports: &FxHashMap<&str, FxHashSet<&str>>,
+    from_imports: &FnvHashMap<&str, FnvHashSet<&str>>,
 ) -> bool {
    // If we have no segments, we can't ever match.
    let num_segments = call_path.len();
@@ -120,9 +118,10 @@ pub fn match_call_path(
    // `Match`).
    if num_segments == 0 {
        module.is_empty()
-            || from_imports.get(module).map_or(false, |imports| {
-                imports.contains(member) || imports.contains("*")
-            })
+            || from_imports
+                .get(module)
+                .map(|imports| imports.contains(member) || imports.contains("*"))
+                .unwrap_or(false)
    } else {
        let components: Vec<&str> = module.split('.').collect();

@@ -146,7 +145,8 @@ pub fn match_call_path(
            let member = components[cut];
            if from_imports
                .get(&module.as_str())
-                .map_or(false, |imports| imports.contains(member))
+                .map(|imports| imports.contains(member))
+                .unwrap_or(false)
            {
                return true;
            }
@@ -215,27 +215,6 @@ pub fn extract_handler_names(handlers: &[Excepthandler]) -> Vec<Vec<&str>> {
    handler_names
 }

-/// Return the set of all bound argument names.
-pub fn collect_arg_names<'a>(arguments: &'a Arguments) -> FxHashSet<&'a str> {
-    let mut arg_names: FxHashSet<&'a str> = FxHashSet::default();
-    for arg in &arguments.posonlyargs {
-        arg_names.insert(arg.node.arg.as_str());
-    }
-    for arg in &arguments.args {
-        arg_names.insert(arg.node.arg.as_str());
-    }
-    if let Some(arg) = &arguments.vararg {
-        arg_names.insert(arg.node.arg.as_str());
-    }
-    for arg in &arguments.kwonlyargs {
-        arg_names.insert(arg.node.arg.as_str());
-    }
-    if let Some(arg) = &arguments.kwarg {
-        arg_names.insert(arg.node.arg.as_str());
-    }
-    arg_names
-}
-
 /// Returns `true` if a call is an argumented `super` invocation.
 pub fn is_super_call_with_arguments(func: &Expr, args: &[Expr]) -> bool {
    // Check: is this a `super` call?
@@ -271,7 +250,7 @@ pub fn to_module_and_member(target: &str) -> (&str, &str) {

 /// Convert a location within a file (relative to `base`) to an absolute
 /// position.
-pub fn to_absolute(relative: Location, base: Location) -> Location {
+pub fn to_absolute(relative: &Location, base: &Location) -> Location {
    if relative.row() == 1 {
        Location::new(
            relative.row() + base.row() - 1,
@@ -282,38 +261,10 @@ pub fn to_absolute(relative: Location, base: Location) -> Location {
    }
 }

-/// Return `true` if a `Stmt` has leading content.
-pub fn match_leading_content(stmt: &Stmt, locator: &SourceCodeLocator) -> bool {
-    let range = Range {
-        location: Location::new(stmt.location.row(), 0),
-        end_location: stmt.location,
-    };
-    let prefix = locator.slice_source_code_range(&range);
-    prefix.chars().any(|char| !char.is_whitespace())
-}
-
-/// Return `true` if a `Stmt` has trailing content.
-pub fn match_trailing_content(stmt: &Stmt, locator: &SourceCodeLocator) -> bool {
-    let range = Range {
-        location: stmt.end_location.unwrap(),
-        end_location: Location::new(stmt.end_location.unwrap().row() + 1, 0),
-    };
-    let suffix = locator.slice_source_code_range(&range);
-    for char in suffix.chars() {
-        if char == '#' {
-            return false;
-        }
-        if !char.is_whitespace() {
-            return true;
-        }
-    }
-    false
-}
-
 #[cfg(test)]
 mod tests {
    use anyhow::Result;
-    use rustc_hash::{FxHashMap, FxHashSet};
+    use fnv::{FnvHashMap, FnvHashSet};
    use rustpython_parser::parser;

    use crate::ast::helpers::match_module_member;
@@ -325,8 +276,8 @@ mod tests {
            &expr,
            "",
            "list",
-            &FxHashMap::default(),
-            &FxHashMap::default(),
+            &FnvHashMap::default(),
+            &FnvHashMap::default(),
        ));
        Ok(())
    }
@@ -338,8 +289,8 @@ mod tests {
            &expr,
            "typing.re",
            "Match",
-            &FxHashMap::default(),
-            &FxHashMap::default(),
+            &FnvHashMap::default(),
+            &FnvHashMap::default(),
        ));
        Ok(())
    }
@@ -351,16 +302,16 @@ mod tests {
            &expr,
            "typing.re",
            "Match",
-            &FxHashMap::default(),
-            &FxHashMap::default(),
+            &FnvHashMap::default(),
+            &FnvHashMap::default(),
        ));
        let expr = parser::parse_expression("re.Match", "<filename>")?;
        assert!(!match_module_member(
            &expr,
            "typing.re",
            "Match",
-            &FxHashMap::default(),
-            &FxHashMap::default(),
+            &FnvHashMap::default(),
+            &FnvHashMap::default(),
        ));
        Ok(())
    }
@@ -372,8 +323,8 @@ mod tests {
            &expr,
            "typing.re",
            "Match",
-            &FxHashMap::from_iter([("typing.re", FxHashSet::from_iter(["*"]))]),
-            &FxHashMap::default()
+            &FnvHashMap::from_iter([("typing.re", FnvHashSet::from_iter(["*"]))]),
+            &FnvHashMap::default()
        ));
        Ok(())
    }
@@ -385,8 +336,8 @@ mod tests {
            &expr,
            "typing.re",
            "Match",
-            &FxHashMap::from_iter([("typing.re", FxHashSet::from_iter(["Match"]))]),
-            &FxHashMap::default()
+            &FnvHashMap::from_iter([("typing.re", FnvHashSet::from_iter(["Match"]))]),
+            &FnvHashMap::default()
        ));
        Ok(())
    }
@@ -398,8 +349,8 @@ mod tests {
            &expr,
            "typing.re",
            "Match",
-            &FxHashMap::from_iter([("typing", FxHashSet::from_iter(["re"]))]),
-            &FxHashMap::default()
+            &FnvHashMap::from_iter([("typing", FnvHashSet::from_iter(["re"]))]),
+            &FnvHashMap::default()
        ));

        let expr = parser::parse_expression("match.Match", "<filename>")?;
@@ -407,8 +358,8 @@ mod tests {
            &expr,
            "typing.re.match",
            "Match",
-            &FxHashMap::from_iter([("typing.re", FxHashSet::from_iter(["match"]))]),
-            &FxHashMap::default()
+            &FnvHashMap::from_iter([("typing.re", FnvHashSet::from_iter(["match"]))]),
+            &FnvHashMap::default()
        ));

        let expr = parser::parse_expression("re.match.Match", "<filename>")?;
@@ -416,8 +367,8 @@ mod tests {
            &expr,
            "typing.re.match",
            "Match",
-            &FxHashMap::from_iter([("typing", FxHashSet::from_iter(["re"]))]),
-            &FxHashMap::default()
+            &FnvHashMap::from_iter([("typing", FnvHashSet::from_iter(["re"]))]),
+            &FnvHashMap::default()
        ));
        Ok(())
    }
@@ -429,8 +380,8 @@ mod tests {
            &expr,
            "typing.re",
            "Match",
-            &FxHashMap::from_iter([("typing.re", FxHashSet::from_iter(["Match"]))]),
-            &FxHashMap::from_iter([("IMatch", "Match")]),
+            &FnvHashMap::from_iter([("typing.re", FnvHashSet::from_iter(["Match"]))]),
+            &FnvHashMap::from_iter([("IMatch", "Match")]),
        ));
        Ok(())
    }
@@ -442,8 +393,8 @@ mod tests {
            &expr,
            "typing.re",
            "Match",
-            &FxHashMap::default(),
-            &FxHashMap::from_iter([("t", "typing.re")]),
+            &FnvHashMap::default(),
+            &FnvHashMap::from_iter([("t", "typing.re")]),
        ));
        Ok(())
    }
@@ -455,8 +406,8 @@ mod tests {
            &expr,
            "typing.re",
            "Match",
-            &FxHashMap::default(),
-            &FxHashMap::from_iter([("t", "typing")]),
+            &FnvHashMap::default(),
+            &FnvHashMap::from_iter([("t", "typing")]),
        ));
        Ok(())
    }
--- a/src/ast/mod.rs
+++ b/src/ast/mod.rs
@@ -3,4 +3,3 @@ pub mod operations;
 pub mod relocate;
 pub mod types;
 pub mod visitor;
-pub mod whitespace;
--- a/src/ast/operations.rs
+++ b/src/ast/operations.rs
@@ -4,6 +4,8 @@ use crate::ast::types::{BindingKind, Scope};

 /// Extract the names bound to a given __all__ assignment.
 pub fn extract_all_names(stmt: &Stmt, scope: &Scope) -> Vec<String> {
+    let mut names: Vec<String> = vec![];
+
    fn add_to_names(names: &mut Vec<String>, elts: &[Expr]) {
        for elt in elts {
            if let ExprKind::Constant {
@@ -11,13 +13,11 @@ pub fn extract_all_names(stmt: &Stmt, scope: &Scope) -> Vec<String> {
                ..
            } = &elt.node
            {
-                names.push(value.to_string());
+                names.push(value.to_string())
            }
        }
    }

-    let mut names: Vec<String> = vec![];
-
    // Grab the existing bound __all__ values.
    if let StmtKind::AugAssign { .. } = &stmt.node {
        if let Some(binding) = scope.values.get("__all__") {
@@ -35,7 +35,7 @@ pub fn extract_all_names(stmt: &Stmt, scope: &Scope) -> Vec<String> {
    } {
        match &value.node {
            ExprKind::List { elts, .. } | ExprKind::Tuple { elts, .. } => {
-                add_to_names(&mut names, elts);
+                add_to_names(&mut names, elts)
            }
            ExprKind::BinOp { left, right, .. } => {
                let mut current_left = left;
--- a/src/ast/types.rs
+++ b/src/ast/types.rs
@@ -1,7 +1,7 @@
 use std::sync::atomic::{AtomicUsize, Ordering};

-use rustc_hash::FxHashMap;
-use rustpython_ast::{Expr, Keyword, Stmt};
+use fnv::FnvHashMap;
+use rustpython_ast::{Expr, Keyword};
 use rustpython_parser::ast::{Located, Location};

 fn id() -> usize {
@@ -9,12 +9,6 @@ fn id() -> usize {
    COUNTER.fetch_add(1, Ordering::Relaxed)
 }

-#[derive(Clone)]
-pub enum Node<'a> {
-    Stmt(&'a Stmt),
-    Expr(&'a Expr),
-}
-
 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, PartialOrd, Ord)]
 pub struct Range {
    pub location: Location,
@@ -25,7 +19,9 @@ impl Range {
    pub fn from_located<T>(located: &Located<T>) -> Self {
        Range {
            location: located.location,
-            end_location: located.end_location.unwrap(),
+            end_location: located
+                .end_location
+                .expect("AST nodes should have end_location."),
        }
    }
 }
@@ -58,7 +54,7 @@ pub struct Scope<'a> {
    pub id: usize,
    pub kind: ScopeKind<'a>,
    pub import_starred: bool,
-    pub values: FxHashMap<&'a str, Binding>,
+    pub values: FnvHashMap<&'a str, Binding>,
 }

 impl<'a> Scope<'a> {
@@ -67,7 +63,7 @@ impl<'a> Scope<'a> {
            id: id(),
            kind,
            import_starred: false,
-            values: FxHashMap::default(),
+            values: FnvHashMap::default(),
        }
    }
 }
@@ -87,7 +83,6 @@ pub enum BindingKind {
    Binding,
    LoopVar,
    Global,
-    Nonlocal,
    Builtin,
    ClassDefinition,
    Definition,
--- a/src/ast/visitor.rs
+++ b/src/ast/visitor.rs
@@ -19,8 +19,8 @@ pub trait Visitor<'a> {
    fn visit_constant(&mut self, constant: &'a Constant) {
        walk_constant(self, constant);
    }
-    fn visit_expr_context(&mut self, expr_context: &'a ExprContext) {
-        walk_expr_context(self, expr_context);
+    fn visit_expr_context(&mut self, expr_content: &'a ExprContext) {
+        walk_expr_context(self, expr_content);
    }
    fn visit_boolop(&mut self, boolop: &'a Boolop) {
        walk_boolop(self, boolop);
@@ -249,7 +249,7 @@ pub fn walk_stmt<'a, V: Visitor<'a> + ?Sized>(visitor: &mut V, stmt: &'a Stmt) {
                visitor.visit_stmt(stmt);
            }
            for excepthandler in handlers {
-                visitor.visit_excepthandler(excepthandler);
+                visitor.visit_excepthandler(excepthandler)
            }
            for stmt in orelse {
                visitor.visit_stmt(stmt);
@@ -447,7 +447,7 @@ pub fn walk_expr<'a, V: Visitor<'a> + ?Sized>(visitor: &mut V, expr: &'a Expr) {
 pub fn walk_constant<'a, V: Visitor<'a> + ?Sized>(visitor: &mut V, constant: &'a Constant) {
    if let Constant::Tuple(constants) = constant {
        for constant in constants {
-            visitor.visit_constant(constant);
+            visitor.visit_constant(constant)
        }
    }
 }
@@ -456,8 +456,8 @@ pub fn walk_comprehension<'a, V: Visitor<'a> + ?Sized>(
    visitor: &mut V,
    comprehension: &'a Comprehension,
 ) {
-    visitor.visit_expr(&comprehension.iter);
    visitor.visit_expr(&comprehension.target);
+    visitor.visit_expr(&comprehension.iter);
    for expr in &comprehension.ifs {
        visitor.visit_expr(expr);
    }
@@ -577,6 +577,7 @@ pub fn walk_pattern<'a, V: Visitor<'a> + ?Sized>(visitor: &mut V, pattern: &'a P
 }

 #[allow(unused_variables)]
+#[inline(always)]
 pub fn walk_expr_context<'a, V: Visitor<'a> + ?Sized>(
    visitor: &mut V,
    expr_context: &'a ExprContext,
@@ -584,16 +585,21 @@ pub fn walk_expr_context<'a, V: Visitor<'a> + ?Sized>(
 }

 #[allow(unused_variables)]
+#[inline(always)]
 pub fn walk_boolop<'a, V: Visitor<'a> + ?Sized>(visitor: &mut V, boolop: &'a Boolop) {}

 #[allow(unused_variables)]
+#[inline(always)]
 pub fn walk_operator<'a, V: Visitor<'a> + ?Sized>(visitor: &mut V, operator: &'a Operator) {}

 #[allow(unused_variables)]
+#[inline(always)]
 pub fn walk_unaryop<'a, V: Visitor<'a> + ?Sized>(visitor: &mut V, unaryop: &'a Unaryop) {}

 #[allow(unused_variables)]
+#[inline(always)]
 pub fn walk_cmpop<'a, V: Visitor<'a> + ?Sized>(visitor: &mut V, cmpop: &'a Cmpop) {}

 #[allow(unused_variables)]
+#[inline(always)]
 pub fn walk_alias<'a, V: Visitor<'a> + ?Sized>(visitor: &mut V, alias: &'a Alias) {}
--- a/src/autofix/fixer.rs
+++ b/src/autofix/fixer.rs
@@ -10,6 +10,8 @@ use crate::autofix::{Fix, Patch};
 use crate::checks::Check;
 use crate::source_code_locator::SourceCodeLocator;

+// TODO(charlie): The model here is awkward because `Apply` is only relevant at
+// higher levels in the execution flow.
 #[derive(Hash)]
 pub enum Mode {
    Generate,
@@ -17,55 +19,55 @@ pub enum Mode {
    None,
 }

-impl From<bool> for Mode {
-    fn from(value: bool) -> Self {
-        if value {
-            Mode::Apply
-        } else {
-            Mode::None
+impl Mode {
+    /// Return `true` if a patch should be generated under the given `Mode`.
+    pub fn patch(&self) -> bool {
+        match &self {
+            Mode::Generate => true,
+            Mode::Apply => true,
+            Mode::None => false,
        }
    }
 }

-impl From<&Mode> for bool {
-    fn from(value: &Mode) -> Self {
+impl From<bool> for Mode {
+    fn from(value: bool) -> Self {
        match value {
-            Mode::Generate | Mode::Apply => true,
-            Mode::None => false,
+            true => Mode::Apply,
+            false => Mode::None,
        }
    }
 }

 /// Auto-fix errors in a file, and write the fixed source code to disk.
 pub fn fix_file<'a>(
-    checks: &'a [Check],
+    checks: &'a mut [Check],
    locator: &'a SourceCodeLocator<'a>,
-) -> Option<(Cow<'a, str>, usize)> {
+) -> Option<Cow<'a, str>> {
    if checks.iter().all(|check| check.fix.is_none()) {
        return None;
    }

    Some(apply_fixes(
-        checks.iter().filter_map(|check| check.fix.as_ref()),
+        checks.iter_mut().filter_map(|check| check.fix.as_mut()),
        locator,
    ))
 }

 /// Apply a series of fixes.
 fn apply_fixes<'a>(
-    fixes: impl Iterator<Item = &'a Fix>,
+    fixes: impl Iterator<Item = &'a mut Fix>,
    locator: &'a SourceCodeLocator<'a>,
-) -> (Cow<'a, str>, usize) {
+) -> Cow<'a, str> {
    let mut output = RopeBuilder::new();
    let mut last_pos: Location = Location::new(1, 0);
    let mut applied: BTreeSet<&Patch> = BTreeSet::default();
-    let mut num_fixed: usize = 0;

    for fix in fixes.sorted_by_key(|fix| fix.patch.location) {
        // If we already applied an identical fix as part of another correction, skip
        // any re-application.
        if applied.contains(&fix.patch) {
-            num_fixed += 1;
+            fix.applied = true;
            continue;
        }

@@ -88,18 +90,19 @@ fn apply_fixes<'a>(
        // Track that the fix was applied.
        last_pos = fix.patch.end_location;
        applied.insert(&fix.patch);
-        num_fixed += 1;
+        fix.applied = true;
    }

    // Add the remaining content.
-    let slice = locator.slice_source_code_at(last_pos);
+    let slice = locator.slice_source_code_at(&last_pos);
    output.append(&slice);

-    (Cow::from(output.finish()), num_fixed)
+    Cow::from(output.finish())
 }

 #[cfg(test)]
 mod tests {
+    use anyhow::Result;
    use rustpython_parser::ast::Location;

    use crate::autofix::fixer::apply_fixes;
@@ -107,117 +110,115 @@ mod tests {
    use crate::SourceCodeLocator;

    #[test]
-    fn empty_file() {
-        let fixes = vec![];
-        let locator = SourceCodeLocator::new(r#""#);
-        let (contents, fixed) = apply_fixes(fixes.iter(), &locator);
-        assert_eq!(contents, "");
-        assert_eq!(fixed, 0);
+    fn empty_file() -> Result<()> {
+        let mut fixes = vec![];
+        let locator = SourceCodeLocator::new("");
+        let actual = apply_fixes(fixes.iter_mut(), &locator);
+        let expected = "";
+
+        assert_eq!(actual, expected);
+
+        Ok(())
    }

    #[test]
-    fn apply_single_replacement() {
-        let fixes = vec![Fix {
+    fn apply_single_replacement() -> Result<()> {
+        let mut fixes = vec![Fix {
            patch: Patch {
                content: "Bar".to_string(),
                location: Location::new(1, 8),
                end_location: Location::new(1, 14),
            },
+            applied: false,
        }];
        let locator = SourceCodeLocator::new(
-            r#"
-class A(object):
-    ...
-"#
-            .trim(),
+            "class A(object):
+        ...
+",
        );
-        let (contents, fixed) = apply_fixes(fixes.iter(), &locator);
-        assert_eq!(
-            contents,
-            r#"
-class A(Bar):
-    ...
-"#
-            .trim(),
-        );
-        assert_eq!(fixed, 1);
+        let actual = apply_fixes(fixes.iter_mut(), &locator);
+
+        let expected = "class A(Bar):
+        ...
+";
+
+        assert_eq!(actual, expected);
+
+        Ok(())
    }

    #[test]
-    fn apply_single_removal() {
-        let fixes = vec![Fix {
+    fn apply_single_removal() -> Result<()> {
+        let mut fixes = vec![Fix {
            patch: Patch {
-                content: String::new(),
+                content: "".to_string(),
                location: Location::new(1, 7),
                end_location: Location::new(1, 15),
            },
+            applied: false,
        }];
        let locator = SourceCodeLocator::new(
-            r#"
-class A(object):
-    ...
-"#
-            .trim(),
+            "class A(object):
+        ...
+",
        );
-        let (contents, fixed) = apply_fixes(fixes.iter(), &locator);
-        assert_eq!(
-            contents,
-            r#"
-class A:
-    ...
-"#
-            .trim()
-        );
-        assert_eq!(fixed, 1);
+        let actual = apply_fixes(fixes.iter_mut(), &locator);
+
+        let expected = "class A:
+        ...
+";
+
+        assert_eq!(actual, expected);
+
+        Ok(())
    }

    #[test]
-    fn apply_double_removal() {
-        let fixes = vec![
+    fn apply_double_removal() -> Result<()> {
+        let mut fixes = vec![
            Fix {
                patch: Patch {
-                    content: String::new(),
+                    content: "".to_string(),
                    location: Location::new(1, 7),
                    end_location: Location::new(1, 16),
                },
+                applied: false,
            },
            Fix {
                patch: Patch {
-                    content: String::new(),
+                    content: "".to_string(),
                    location: Location::new(1, 16),
                    end_location: Location::new(1, 23),
                },
+                applied: false,
            },
        ];
        let locator = SourceCodeLocator::new(
-            r#"
-class A(object, object):
-    ...
-"#
-            .trim(),
+            "class A(object, object):
+        ...
+",
        );
-        let (contents, fixed) = apply_fixes(fixes.iter(), &locator);
+        let actual = apply_fixes(fixes.iter_mut(), &locator);

-        assert_eq!(
-            contents,
-            r#"
-class A:
-    ...
-"#
-            .trim()
-        );
-        assert_eq!(fixed, 2);
+        let expected = "class A:
+        ...
+";
+
+        assert_eq!(actual, expected);
+
+        Ok(())
    }

    #[test]
-    fn ignore_overlapping_fixes() {
-        let fixes = vec![
+    fn ignore_overlapping_fixes() -> Result<()> {
+        let mut fixes = vec![
            Fix {
                patch: Patch {
-                    content: String::new(),
+                    content: "".to_string(),
                    location: Location::new(1, 7),
                    end_location: Location::new(1, 15),
                },
+                applied: false,
            },
            Fix {
                patch: Patch {
@@ -225,24 +226,22 @@ class A:
                    location: Location::new(1, 9),
                    end_location: Location::new(1, 11),
                },
+                applied: false,
            },
        ];
        let locator = SourceCodeLocator::new(
-            r#"
-class A(object):
+            "class A(object):
    ...
-"#
-            .trim(),
+",
        );
-        let (contents, fixed) = apply_fixes(fixes.iter(), &locator);
-        assert_eq!(
-            contents,
-            r#"
-class A:
+        let actual = apply_fixes(fixes.iter_mut(), &locator);
+
+        let expected = "class A:
    ...
-"#
-            .trim(),
-        );
-        assert_eq!(fixed, 1);
+";
+
+        assert_eq!(actual, expected);
+
+        Ok(())
    }
 }
--- a/src/autofix/mod.rs
+++ b/src/autofix/mod.rs
@@ -14,16 +14,18 @@ pub struct Patch {
 #[derive(Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct Fix {
    pub patch: Patch,
+    pub applied: bool,
 }

 impl Fix {
    pub fn deletion(start: Location, end: Location) -> Self {
        Self {
            patch: Patch {
-                content: String::new(),
+                content: "".to_string(),
                location: start,
                end_location: end,
            },
+            applied: false,
        }
    }

@@ -34,6 +36,7 @@ impl Fix {
                location: start,
                end_location: end,
            },
+            applied: false,
        }
    }

@@ -44,16 +47,18 @@ impl Fix {
                location: at,
                end_location: at,
            },
+            applied: false,
        }
    }

    pub fn dummy(location: Location) -> Self {
        Self {
            patch: Patch {
-                content: String::new(),
+                content: "".to_string(),
                location,
                end_location: location,
            },
+            applied: false,
        }
    }
 }
--- a/src/cache.rs
+++ b/src/cache.rs
@@ -1,11 +1,19 @@
+// cacache uses asyncd-std which has no wasm support, so currently no caching
+// support on wasm
+#![cfg_attr(
+    target_family = "wasm",
+    allow(unused_imports, unused_variables, dead_code)
+)]
+
 use std::collections::hash_map::DefaultHasher;
-use std::fs;
 use std::fs::{create_dir_all, File, Metadata};
 use std::hash::{Hash, Hasher};
 use std::io::Write;
 use std::path::Path;

 use anyhow::Result;
+#[cfg(not(target_family = "wasm"))]
+use cacache::Error::EntryNotFound;
 use filetime::FileTime;
 use log::error;
 use path_absolutize::Absolutize;
@@ -63,10 +71,9 @@ impl Mode {

 impl From<bool> for Mode {
    fn from(value: bool) -> Self {
-        if value {
-            Mode::ReadWrite
-        } else {
-            Mode::None
+        match value {
+            true => Mode::ReadWrite,
+            false => Mode::None,
        }
    }
 }
@@ -75,59 +82,28 @@ fn cache_dir() -> &'static str {
    "./.ruff_cache"
 }

-fn content_dir() -> &'static str {
-    "content"
-}
-
-fn cache_key(path: &Path, settings: &Settings, autofix: &fixer::Mode) -> u64 {
+fn cache_key(path: &Path, settings: &Settings, autofix: &fixer::Mode) -> String {
    let mut hasher = DefaultHasher::new();
-    CARGO_PKG_VERSION.hash(&mut hasher);
-    path.absolutize().unwrap().hash(&mut hasher);
    settings.hash(&mut hasher);
    autofix.hash(&mut hasher);
-    hasher.finish()
+    format!(
+        "{}@{}@{}",
+        path.absolutize().unwrap().to_string_lossy(),
+        CARGO_PKG_VERSION,
+        hasher.finish()
+    )
 }

-/// Initialize the cache directory.
 pub fn init() -> Result<()> {
-    let path = Path::new(cache_dir());
-
-    // Create the cache directories.
-    create_dir_all(path.join(content_dir()))?;
-
-    // Add the CACHEDIR.TAG.
-    if !cachedir::is_tagged(path)? {
-        cachedir::add_tag(path)?;
+    let gitignore_path = Path::new(cache_dir()).join(".gitignore");
+    if gitignore_path.exists() {
+        return Ok(());
    }
-
-    // Add the .gitignore.
-    let gitignore_path = path.join(".gitignore");
-    if !gitignore_path.exists() {
-        let mut file = File::create(gitignore_path)?;
-        file.write_all(b"*")?;
-    }
-
-    Ok(())
+    create_dir_all(cache_dir())?;
+    let mut file = File::create(gitignore_path)?;
+    file.write_all(b"*").map_err(|e| e.into())
 }

-fn write_sync(key: u64, value: &[u8]) -> Result<(), std::io::Error> {
-    fs::write(
-        Path::new(cache_dir())
-            .join(content_dir())
-            .join(format!("{key:x}")),
-        value,
-    )
-}
-
-fn read_sync(key: u64) -> Result<Vec<u8>, std::io::Error> {
-    fs::read(
-        Path::new(cache_dir())
-            .join(content_dir())
-            .join(format!("{key:x}")),
-    )
-}
-
-/// Get a value from the cache.
 pub fn get(
    path: &Path,
    metadata: &Metadata,
@@ -139,8 +115,9 @@ pub fn get(
        return None;
    };

-    if let Ok(encoded) = read_sync(cache_key(path, settings, autofix)) {
-        match bincode::deserialize::<CheckResult>(&encoded[..]) {
+    #[cfg(not(target_family = "wasm"))] // cacache needs async-std which doesn't support wasm
+    match cacache::read_sync(cache_dir(), cache_key(path, settings, autofix)) {
+        Ok(encoded) => match bincode::deserialize::<CheckResult>(&encoded[..]) {
            Ok(CheckResult {
                metadata: CacheMetadata { mtime },
                messages,
@@ -150,12 +127,13 @@ pub fn get(
                }
            }
            Err(e) => error!("Failed to deserialize encoded cache entry: {e:?}"),
-        }
+        },
+        Err(EntryNotFound(..)) => {}
+        Err(e) => error!("Failed to read from cache: {e:?}"),
    }
    None
 }

-/// Set a value in the cache.
 pub fn set(
    path: &Path,
    metadata: &Metadata,
@@ -168,16 +146,19 @@ pub fn set(
        return;
    };

+    #[cfg(not(target_family = "wasm"))] // modification date not supported on wasm
    let check_result = CheckResultRef {
        metadata: &CacheMetadata {
            mtime: FileTime::from_last_modification_time(metadata).unix_seconds(),
        },
        messages,
    };
-    if let Err(e) = write_sync(
+    #[cfg(not(target_family = "wasm"))] // cacache needs async-std which doesn't support wasm
+    if let Err(e) = cacache::write_sync(
+        cache_dir(),
        cache_key(path, settings, autofix),
-        &bincode::serialize(&check_result).unwrap(),
+        bincode::serialize(&check_result).unwrap(),
    ) {
-        error!("Failed to write to cache: {e:?}");
+        error!("Failed to write to cache: {e:?}")
    }
 }
--- a/src/check_ast.rs
+++ b/src/check_ast.rs
--- a/src/check_imports.rs
+++ b/src/check_imports.rs
@@ -4,6 +4,7 @@ use nohash_hasher::IntSet;
 use rustpython_parser::ast::Suite;

 use crate::ast::visitor::Visitor;
+use crate::autofix::fixer;
 use crate::checks::Check;
 use crate::isort;
 use crate::isort::track::ImportTracker;
@@ -14,12 +15,12 @@ fn check_import_blocks(
    tracker: ImportTracker,
    locator: &SourceCodeLocator,
    settings: &Settings,
-    autofix: bool,
+    autofix: &fixer::Mode,
 ) -> Vec<Check> {
    let mut checks = vec![];
    for block in tracker.into_iter() {
        if !block.is_empty() {
-            if let Some(check) = isort::plugins::check_imports(&block, locator, settings, autofix) {
+            if let Some(check) = isort::plugins::check_imports(block, locator, settings, autofix) {
                checks.push(check);
            }
        }
@@ -32,7 +33,7 @@ pub fn check_imports(
    locator: &SourceCodeLocator,
    exclusions: &IntSet<usize>,
    settings: &Settings,
-    autofix: bool,
+    autofix: &fixer::Mode,
 ) -> Vec<Check> {
    let mut tracker = ImportTracker::new(exclusions);
    for stmt in python_ast {
--- a/src/check_lines.rs
+++ b/src/check_lines.rs
@@ -6,7 +6,7 @@ use regex::Regex;
 use rustpython_parser::ast::Location;

 use crate::ast::types::Range;
-use crate::autofix::Fix;
+use crate::autofix::{fixer, Fix};
 use crate::checks::{Check, CheckCode, CheckKind};
 use crate::noqa;
 use crate::noqa::Directive;
@@ -14,18 +14,15 @@ use crate::settings::Settings;

 // Regex from PEP263
 static CODING_COMMENT_REGEX: Lazy<Regex> =
-    Lazy::new(|| Regex::new(r"^[ \t\f]*#.*?coding[:=][ \t]*utf-?8").unwrap());
-
-static URL_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"^https?://\S+$").unwrap());
+    Lazy::new(|| Regex::new(r"^[ \t\f]*#.*?coding[:=][ \t]*utf-?8").expect("Invalid regex"));

 /// Whether the given line is too long and should be reported.
 fn should_enforce_line_length(line: &str, length: usize, limit: usize) -> bool {
    if length > limit {
        let mut chunks = line.split_whitespace();
        if let (Some(first), Some(_)) = (chunks.next(), chunks.next()) {
-            // Do not enforce the line length for commented lines that end with a URL
-            // or contain only a single word.
-            !(first == "#" && chunks.last().map_or(true, |c| URL_REGEX.is_match(c)))
+            // Do not enforce the line length for commented lines with a single word
+            !(first == "#" && chunks.next().is_none())
        } else {
            // Single word / no printable chars - no way to make the line shorter
            false
@@ -40,12 +37,11 @@ pub fn check_lines(
    contents: &str,
    noqa_line_for: &IntMap<usize, usize>,
    settings: &Settings,
-    autofix: bool,
-    ignore_noqa: bool,
+    autofix: &fixer::Mode,
 ) {
-    let enforce_unnecessary_coding_comment = settings.enabled.contains(&CheckCode::U009);
-    let enforce_line_too_long = settings.enabled.contains(&CheckCode::E501);
-    let enforce_noqa = settings.enabled.contains(&CheckCode::M001);
+    let enforce_unnecessary_coding_comment = settings.enabled[CheckCode::U009 as usize];
+    let enforce_line_too_long = settings.enabled[CheckCode::E501 as usize];
+    let enforce_noqa = settings.enabled[CheckCode::M001 as usize];

    let mut noqa_directives: IntMap<usize, (Directive, Vec<&str>)> = IntMap::default();
    let mut line_checks = vec![];
@@ -57,30 +53,6 @@ pub fn check_lines(
        assert!(check.location.row() >= 1);
    }

-    macro_rules! add_if {
-        ($check:expr, $noqa:expr) => {{
-            match $noqa {
-                (Directive::All(..), matches) => {
-                    matches.push($check.kind.code().as_ref());
-                    if ignore_noqa {
-                        line_checks.push($check);
-                    }
-                }
-                (Directive::Codes(.., codes), matches) => {
-                    if codes.contains(&$check.kind.code().as_ref()) {
-                        matches.push($check.kind.code().as_ref());
-                        if ignore_noqa {
-                            line_checks.push($check);
-                        }
-                    } else {
-                        line_checks.push($check);
-                    }
-                }
-                (Directive::None, ..) => line_checks.push($check),
-            }
-        }};
-    }
-
    let lines: Vec<&str> = contents.lines().collect();
    for (lineno, line) in lines.iter().enumerate() {
        // Grab the noqa (logical) line number for the current (physical) line.
@@ -93,24 +65,21 @@ pub fn check_lines(
            if lineno < 2 {
                // PEP3120 makes utf-8 the default encoding.
                if CODING_COMMENT_REGEX.is_match(line) {
+                    let line_length = line.len();
                    let mut check = Check::new(
                        CheckKind::PEP3120UnnecessaryCodingComment,
                        Range {
                            location: Location::new(lineno + 1, 0),
-                            end_location: Location::new(lineno + 2, 0),
+                            end_location: Location::new(lineno + 1, line_length + 1),
                        },
                    );
-                    if autofix && settings.fixable.contains(check.kind.code()) {
+                    if autofix.patch() && settings.fixable.contains(check.kind.code()) {
                        check.amend(Fix::deletion(
                            Location::new(lineno + 1, 0),
-                            Location::new(lineno + 2, 0),
+                            Location::new(lineno + 1, line_length + 1),
                        ));
                    }
-
-                    let noqa = noqa_directives.entry(noqa_lineno).or_insert_with(|| {
-                        (noqa::extract_noqa_directive(lines[noqa_lineno]), vec![])
-                    });
-                    add_if!(check, noqa);
+                    line_checks.push(check);
                }
            }
        }
@@ -132,15 +101,15 @@ pub fn check_lines(
            match noqa {
                (Directive::All(..), matches) => {
                    matches.push(check.kind.code().as_ref());
-                    ignored.push(index);
+                    ignored.push(index)
                }
-                (Directive::Codes(.., codes), matches) => {
+                (Directive::Codes(_, _, codes), matches) => {
                    if codes.contains(&check.kind.code().as_ref()) {
                        matches.push(check.kind.code().as_ref());
                        ignored.push(index);
                    }
                }
-                (Directive::None, ..) => {}
+                (Directive::None, _) => {}
            }
        }

@@ -148,6 +117,10 @@ pub fn check_lines(
        if enforce_line_too_long {
            let line_length = line.chars().count();
            if should_enforce_line_length(line, line_length, settings.line_length) {
+                let noqa = noqa_directives
+                    .entry(noqa_lineno)
+                    .or_insert_with(|| (noqa::extract_noqa_directive(lines[noqa_lineno]), vec![]));
+
                let check = Check::new(
                    CheckKind::LineTooLong(line_length, settings.line_length),
                    Range {
@@ -156,19 +129,35 @@ pub fn check_lines(
                    },
                );

-                let noqa = noqa_directives
-                    .entry(noqa_lineno)
-                    .or_insert_with(|| (noqa::extract_noqa_directive(lines[noqa_lineno]), vec![]));
-                add_if!(check, noqa);
+                match noqa {
+                    (Directive::All(..), matches) => {
+                        matches.push(check.kind.code().as_ref());
+                    }
+                    (Directive::Codes(_, _, codes), matches) => {
+                        if codes.contains(&check.kind.code().as_ref()) {
+                            matches.push(check.kind.code().as_ref());
+                        } else {
+                            line_checks.push(check);
+                        }
+                    }
+                    (Directive::None, _) => line_checks.push(check),
+                }
            }
        }
    }

-    // Enforce newlines at end of files (W292).
-    if settings.enabled.contains(&CheckCode::W292) && !contents.ends_with('\n') {
+    // Enforce newlines at end of files.
+    if settings.enabled[CheckCode::W292 as usize] && !contents.ends_with('\n') {
        // Note: if `lines.last()` is `None`, then `contents` is empty (and so we don't
        // want to raise W292 anyway).
        if let Some(line) = lines.last() {
+            let lineno = lines.len() - 1;
+            let noqa_lineno = noqa_line_for.get(&(lineno + 1)).unwrap_or(&(lineno + 1)) - 1;
+
+            let noqa = noqa_directives
+                .entry(noqa_lineno)
+                .or_insert_with(|| (noqa::extract_noqa_directive(lines[noqa_lineno]), vec![]));
+
            let check = Check::new(
                CheckKind::NoNewLineAtEndOfFile,
                Range {
@@ -177,20 +166,27 @@ pub fn check_lines(
                },
            );

-            let lineno = lines.len() - 1;
-            let noqa_lineno = noqa_line_for.get(&(lineno + 1)).unwrap_or(&(lineno + 1)) - 1;
-            let noqa = noqa_directives
-                .entry(noqa_lineno)
-                .or_insert_with(|| (noqa::extract_noqa_directive(lines[noqa_lineno]), vec![]));
-            add_if!(check, noqa);
+            match noqa {
+                (Directive::All(..), matches) => {
+                    matches.push(check.kind.code().as_ref());
+                }
+                (Directive::Codes(_, _, codes), matches) => {
+                    if codes.contains(&check.kind.code().as_ref()) {
+                        matches.push(check.kind.code().as_ref());
+                    } else {
+                        line_checks.push(check);
+                    }
+                }
+                (Directive::None, _) => line_checks.push(check),
+            }
        }
    }

-    // Enforce that the noqa directive was actually used (M001).
+    // Enforce that the noqa directive was actually used.
    if enforce_noqa {
        for (row, (directive, matches)) in noqa_directives {
            match directive {
-                Directive::All(spaces, start, end) => {
+                Directive::All(start, end) => {
                    if matches.is_empty() {
                        let mut check = Check::new(
                            CheckKind::UnusedNOQA(None),
@@ -199,23 +195,23 @@ pub fn check_lines(
                                end_location: Location::new(row + 1, end),
                            },
                        );
-                        if autofix && settings.fixable.contains(check.kind.code()) {
+                        if autofix.patch() && settings.fixable.contains(check.kind.code()) {
                            check.amend(Fix::deletion(
-                                Location::new(row + 1, start - spaces),
+                                Location::new(row + 1, start),
                                Location::new(row + 1, lines[row].chars().count()),
                            ));
                        }
                        line_checks.push(check);
                    }
                }
-                Directive::Codes(spaces, start, end, codes) => {
+                Directive::Codes(start, end, codes) => {
                    let mut invalid_codes = vec![];
                    let mut valid_codes = vec![];
                    for code in codes {
-                        if matches.contains(&code) {
-                            valid_codes.push(code.to_string());
-                        } else {
+                        if !matches.contains(&code) {
                            invalid_codes.push(code.to_string());
+                        } else {
+                            valid_codes.push(code.to_string());
                        }
                    }

@@ -227,15 +223,15 @@ pub fn check_lines(
                                end_location: Location::new(row + 1, end),
                            },
                        );
-                        if autofix && settings.fixable.contains(check.kind.code()) {
+                        if autofix.patch() && settings.fixable.contains(check.kind.code()) {
                            if valid_codes.is_empty() {
                                check.amend(Fix::deletion(
-                                    Location::new(row + 1, start - spaces),
+                                    Location::new(row + 1, start),
                                    Location::new(row + 1, lines[row].chars().count()),
                                ));
                            } else {
                                check.amend(Fix::replacement(
-                                    format!("# noqa: {}", valid_codes.join(", ")),
+                                    format!("  # noqa: {}", valid_codes.join(", ")),
                                    Location::new(row + 1, start),
                                    Location::new(row + 1, lines[row].chars().count()),
                                ));
@@ -249,11 +245,9 @@ pub fn check_lines(
        }
    }

-    if !ignore_noqa {
-        ignored.sort_unstable();
-        for index in ignored.iter().rev() {
-            checks.swap_remove(*index);
-        }
+    ignored.sort();
+    for index in ignored.iter().rev() {
+        checks.swap_remove(*index);
    }
    checks.extend(line_checks);
 }
@@ -263,13 +257,14 @@ mod tests {
    use nohash_hasher::IntMap;

    use super::check_lines;
+    use crate::autofix::fixer;
    use crate::checks::{Check, CheckCode};
    use crate::settings::Settings;

    #[test]
    fn e501_non_ascii_char() {
        let line = "'\u{4e9c}' * 2"; // 7 in UTF-32, 9 in UTF-8.
-        let noqa_line_for: IntMap<usize, usize> = IntMap::default();
+        let noqa_line_for: IntMap<usize, usize> = Default::default();
        let check_with_max_line_length = |line_length: usize| {
            let mut checks: Vec<Check> = vec![];
            check_lines(
@@ -280,8 +275,7 @@ mod tests {
                    line_length,
                    ..Settings::for_rule(CheckCode::E501)
                },
-                true,
-                false,
+                &fixer::Mode::Generate,
            );
            checks
        };
--- a/src/check_tokens.rs
+++ b/src/check_tokens.rs
@@ -2,32 +2,31 @@

 use rustpython_parser::lexer::{LexResult, Tok};

+use crate::autofix::fixer;
 use crate::checks::{Check, CheckCode};
 use crate::lex::docstring_detection::StateMachine;
 use crate::rules::checks::Context;
 use crate::source_code_locator::SourceCodeLocator;
-use crate::{eradicate, flake8_quotes, pycodestyle, rules, Settings};
+use crate::{flake8_quotes, pycodestyle, rules, Settings};

 pub fn check_tokens(
+    checks: &mut Vec<Check>,
    locator: &SourceCodeLocator,
    tokens: &[LexResult],
    settings: &Settings,
-    autofix: bool,
-) -> Vec<Check> {
-    let mut checks: Vec<Check> = vec![];
+    autofix: &fixer::Mode,
+) {
+    let enforce_ambiguous_unicode_character = settings.enabled[CheckCode::RUF001 as usize]
+        || settings.enabled[CheckCode::RUF002 as usize]
+        || settings.enabled[CheckCode::RUF003 as usize];
+    let enforce_quotes = settings.enabled[CheckCode::Q000 as usize]
+        || settings.enabled[CheckCode::Q001 as usize]
+        || settings.enabled[CheckCode::Q002 as usize]
+        || settings.enabled[CheckCode::Q003 as usize];
+    let enforce_invalid_escape_sequence = settings.enabled[CheckCode::W605 as usize];

-    let enforce_ambiguous_unicode_character = settings.enabled.contains(&CheckCode::RUF001)
-        || settings.enabled.contains(&CheckCode::RUF002)
-        || settings.enabled.contains(&CheckCode::RUF003);
-    let enforce_quotes = settings.enabled.contains(&CheckCode::Q000)
-        || settings.enabled.contains(&CheckCode::Q001)
-        || settings.enabled.contains(&CheckCode::Q002)
-        || settings.enabled.contains(&CheckCode::Q003);
-    let enforce_commented_out_code = settings.enabled.contains(&CheckCode::ERA001);
-    let enforce_invalid_escape_sequence = settings.enabled.contains(&CheckCode::W605);
-
-    let mut state_machine = StateMachine::default();
-    for &(start, ref tok, end) in tokens.iter().flatten() {
+    let mut state_machine: StateMachine = Default::default();
+    for (start, tok, end) in tokens.iter().flatten() {
        let is_docstring = if enforce_ambiguous_unicode_character || enforce_quotes {
            state_machine.consume(tok)
        } else {
@@ -66,24 +65,13 @@ pub fn check_tokens(
                    is_docstring,
                    &settings.flake8_quotes,
                ) {
-                    if settings.enabled.contains(check.kind.code()) {
+                    if settings.enabled[check.kind.code().clone() as usize] {
                        checks.push(check);
                    }
                }
            }
        }

-        // eradicate
-        if enforce_commented_out_code {
-            if matches!(tok, Tok::Comment) {
-                if let Some(check) =
-                    eradicate::checks::commented_out_code(locator, start, end, settings, autofix)
-                {
-                    checks.push(check);
-                }
-            }
-        }
-
        // W605
        if enforce_invalid_escape_sequence {
            if matches!(tok, Tok::String { .. }) {
@@ -93,6 +81,4 @@ pub fn check_tokens(
            }
        }
    }
-
-    checks
 }
--- a/src/checks.rs
+++ b/src/checks.rs
--- a/src/checks_gen.rs
+++ b/src/checks_gen.rs
@@ -1,4 +1,4 @@
-//! File automatically generated by `examples/generate_check_code_prefix.rs`.
+//! File automatically generated by examples/generate_check_code_prefix.rs.

 use serde::{Deserialize, Serialize};
 use strum_macros::EnumString;
@@ -59,14 +59,10 @@ pub enum CheckCodePrefix {
    B020,
    B021,
    B022,
-    B023,
    B024,
    B025,
    B026,
    B027,
-    B9,
-    B90,
-    B904,
    BLE,
    BLE0,
    BLE00,
@@ -176,10 +172,6 @@ pub enum CheckCodePrefix {
    E902,
    E99,
    E999,
-    ERA,
-    ERA8,
-    ERA80,
-    ERA001,
    F,
    F4,
    F40,
@@ -191,22 +183,6 @@ pub enum CheckCodePrefix {
    F406,
    F407,
    F5,
-    F50,
-    F501,
-    F502,
-    F503,
-    F504,
-    F505,
-    F506,
-    F507,
-    F508,
-    F509,
-    F52,
-    F521,
-    F522,
-    F523,
-    F524,
-    F525,
    F54,
    F541,
    F6,
@@ -291,9 +267,6 @@ pub enum CheckCodePrefix {
    RUF001,
    RUF002,
    RUF003,
-    RUF1,
-    RUF10,
-    RUF101,
    S,
    S1,
    S10,
@@ -304,9 +277,6 @@ pub enum CheckCodePrefix {
    S106,
    S107,
    T,
-    T1,
-    T10,
-    T100,
    T2,
    T20,
    T201,
@@ -327,8 +297,6 @@ pub enum CheckCodePrefix {
    U011,
    U012,
    U013,
-    U014,
-    U015,
    W,
    W2,
    W29,
@@ -365,7 +333,6 @@ pub enum PrefixSpecificity {

 impl CheckCodePrefix {
    pub fn codes(&self) -> Vec<CheckCode> {
-        #[allow(clippy::match_same_arms)]
        match self {
            CheckCodePrefix::A => vec![CheckCode::A001, CheckCode::A002, CheckCode::A003],
            CheckCodePrefix::A0 => vec![CheckCode::A001, CheckCode::A002, CheckCode::A003],
@@ -439,12 +406,10 @@ impl CheckCodePrefix {
                CheckCode::B020,
                CheckCode::B021,
                CheckCode::B022,
-                CheckCode::B023,
                CheckCode::B024,
                CheckCode::B025,
                CheckCode::B026,
                CheckCode::B027,
-                CheckCode::B904,
            ],
            CheckCodePrefix::B0 => vec![
                CheckCode::B002,
@@ -468,7 +433,6 @@ impl CheckCodePrefix {
                CheckCode::B020,
                CheckCode::B021,
                CheckCode::B022,
-                CheckCode::B023,
                CheckCode::B024,
                CheckCode::B025,
                CheckCode::B026,
@@ -518,7 +482,6 @@ impl CheckCodePrefix {
                CheckCode::B020,
                CheckCode::B021,
                CheckCode::B022,
-                CheckCode::B023,
                CheckCode::B024,
                CheckCode::B025,
                CheckCode::B026,
@@ -527,14 +490,10 @@ impl CheckCodePrefix {
            CheckCodePrefix::B020 => vec![CheckCode::B020],
            CheckCodePrefix::B021 => vec![CheckCode::B021],
            CheckCodePrefix::B022 => vec![CheckCode::B022],
-            CheckCodePrefix::B023 => vec![CheckCode::B023],
            CheckCodePrefix::B024 => vec![CheckCode::B024],
            CheckCodePrefix::B025 => vec![CheckCode::B025],
            CheckCodePrefix::B026 => vec![CheckCode::B026],
            CheckCodePrefix::B027 => vec![CheckCode::B027],
-            CheckCodePrefix::B9 => vec![CheckCode::B904],
-            CheckCodePrefix::B90 => vec![CheckCode::B904],
-            CheckCodePrefix::B904 => vec![CheckCode::B904],
            CheckCodePrefix::BLE => vec![CheckCode::BLE001],
            CheckCodePrefix::BLE0 => vec![CheckCode::BLE001],
            CheckCodePrefix::BLE00 => vec![CheckCode::BLE001],
@@ -867,10 +826,6 @@ impl CheckCodePrefix {
            CheckCodePrefix::E902 => vec![CheckCode::E902],
            CheckCodePrefix::E99 => vec![CheckCode::E999],
            CheckCodePrefix::E999 => vec![CheckCode::E999],
-            CheckCodePrefix::ERA => vec![CheckCode::ERA001],
-            CheckCodePrefix::ERA8 => vec![CheckCode::ERA001],
-            CheckCodePrefix::ERA80 => vec![CheckCode::ERA001],
-            CheckCodePrefix::ERA001 => vec![CheckCode::ERA001],
            CheckCodePrefix::F => vec![
                CheckCode::F401,
                CheckCode::F402,
@@ -879,20 +834,6 @@ impl CheckCodePrefix {
                CheckCode::F405,
                CheckCode::F406,
                CheckCode::F407,
-                CheckCode::F501,
-                CheckCode::F502,
-                CheckCode::F503,
-                CheckCode::F504,
-                CheckCode::F505,
-                CheckCode::F506,
-                CheckCode::F507,
-                CheckCode::F508,
-                CheckCode::F509,
-                CheckCode::F521,
-                CheckCode::F522,
-                CheckCode::F523,
-                CheckCode::F524,
-                CheckCode::F525,
                CheckCode::F541,
                CheckCode::F601,
                CheckCode::F602,
@@ -940,55 +881,7 @@ impl CheckCodePrefix {
            CheckCodePrefix::F405 => vec![CheckCode::F405],
            CheckCodePrefix::F406 => vec![CheckCode::F406],
            CheckCodePrefix::F407 => vec![CheckCode::F407],
-            CheckCodePrefix::F5 => vec![
-                CheckCode::F501,
-                CheckCode::F502,
-                CheckCode::F503,
-                CheckCode::F504,
-                CheckCode::F505,
-                CheckCode::F506,
-                CheckCode::F507,
-                CheckCode::F508,
-                CheckCode::F509,
-                CheckCode::F521,
-                CheckCode::F522,
-                CheckCode::F523,
-                CheckCode::F524,
-                CheckCode::F525,
-                CheckCode::F541,
-            ],
-            CheckCodePrefix::F50 => vec![
-                CheckCode::F501,
-                CheckCode::F502,
-                CheckCode::F503,
-                CheckCode::F504,
-                CheckCode::F505,
-                CheckCode::F506,
-                CheckCode::F507,
-                CheckCode::F508,
-                CheckCode::F509,
-            ],
-            CheckCodePrefix::F501 => vec![CheckCode::F501],
-            CheckCodePrefix::F502 => vec![CheckCode::F502],
-            CheckCodePrefix::F503 => vec![CheckCode::F503],
-            CheckCodePrefix::F504 => vec![CheckCode::F504],
-            CheckCodePrefix::F505 => vec![CheckCode::F505],
-            CheckCodePrefix::F506 => vec![CheckCode::F506],
-            CheckCodePrefix::F507 => vec![CheckCode::F507],
-            CheckCodePrefix::F508 => vec![CheckCode::F508],
-            CheckCodePrefix::F509 => vec![CheckCode::F509],
-            CheckCodePrefix::F52 => vec![
-                CheckCode::F521,
-                CheckCode::F522,
-                CheckCode::F523,
-                CheckCode::F524,
-                CheckCode::F525,
-            ],
-            CheckCodePrefix::F521 => vec![CheckCode::F521],
-            CheckCodePrefix::F522 => vec![CheckCode::F522],
-            CheckCodePrefix::F523 => vec![CheckCode::F523],
-            CheckCodePrefix::F524 => vec![CheckCode::F524],
-            CheckCodePrefix::F525 => vec![CheckCode::F525],
+            CheckCodePrefix::F5 => vec![CheckCode::F541],
            CheckCodePrefix::F54 => vec![CheckCode::F541],
            CheckCodePrefix::F541 => vec![CheckCode::F541],
            CheckCodePrefix::F6 => vec![
@@ -1164,20 +1057,12 @@ impl CheckCodePrefix {
            CheckCodePrefix::Q001 => vec![CheckCode::Q001],
            CheckCodePrefix::Q002 => vec![CheckCode::Q002],
            CheckCodePrefix::Q003 => vec![CheckCode::Q003],
-            CheckCodePrefix::RUF => vec![
-                CheckCode::RUF001,
-                CheckCode::RUF002,
-                CheckCode::RUF003,
-                CheckCode::RUF101,
-            ],
+            CheckCodePrefix::RUF => vec![CheckCode::RUF001, CheckCode::RUF002, CheckCode::RUF003],
            CheckCodePrefix::RUF0 => vec![CheckCode::RUF001, CheckCode::RUF002, CheckCode::RUF003],
            CheckCodePrefix::RUF00 => vec![CheckCode::RUF001, CheckCode::RUF002, CheckCode::RUF003],
            CheckCodePrefix::RUF001 => vec![CheckCode::RUF001],
            CheckCodePrefix::RUF002 => vec![CheckCode::RUF002],
            CheckCodePrefix::RUF003 => vec![CheckCode::RUF003],
-            CheckCodePrefix::RUF1 => vec![CheckCode::RUF101],
-            CheckCodePrefix::RUF10 => vec![CheckCode::RUF101],
-            CheckCodePrefix::RUF101 => vec![CheckCode::RUF101],
            CheckCodePrefix::S => vec![
                CheckCode::S101,
                CheckCode::S102,
@@ -1208,10 +1093,7 @@ impl CheckCodePrefix {
            CheckCodePrefix::S105 => vec![CheckCode::S105],
            CheckCodePrefix::S106 => vec![CheckCode::S106],
            CheckCodePrefix::S107 => vec![CheckCode::S107],
-            CheckCodePrefix::T => vec![CheckCode::T100, CheckCode::T201, CheckCode::T203],
-            CheckCodePrefix::T1 => vec![CheckCode::T100],
-            CheckCodePrefix::T10 => vec![CheckCode::T100],
-            CheckCodePrefix::T100 => vec![CheckCode::T100],
+            CheckCodePrefix::T => vec![CheckCode::T201, CheckCode::T203],
            CheckCodePrefix::T2 => vec![CheckCode::T201, CheckCode::T203],
            CheckCodePrefix::T20 => vec![CheckCode::T201, CheckCode::T203],
            CheckCodePrefix::T201 => vec![CheckCode::T201],
@@ -1229,8 +1111,6 @@ impl CheckCodePrefix {
                CheckCode::U011,
                CheckCode::U012,
                CheckCode::U013,
-                CheckCode::U014,
-                CheckCode::U015,
            ],
            CheckCodePrefix::U0 => vec![
                CheckCode::U001,
@@ -1245,8 +1125,6 @@ impl CheckCodePrefix {
                CheckCode::U011,
                CheckCode::U012,
                CheckCode::U013,
-                CheckCode::U014,
-                CheckCode::U015,
            ],
            CheckCodePrefix::U00 => vec![
                CheckCode::U001,
@@ -1271,15 +1149,11 @@ impl CheckCodePrefix {
                CheckCode::U011,
                CheckCode::U012,
                CheckCode::U013,
-                CheckCode::U014,
-                CheckCode::U015,
            ],
            CheckCodePrefix::U010 => vec![CheckCode::U010],
            CheckCodePrefix::U011 => vec![CheckCode::U011],
            CheckCodePrefix::U012 => vec![CheckCode::U012],
            CheckCodePrefix::U013 => vec![CheckCode::U013],
-            CheckCodePrefix::U014 => vec![CheckCode::U014],
-            CheckCodePrefix::U015 => vec![CheckCode::U015],
            CheckCodePrefix::W => vec![CheckCode::W292, CheckCode::W605],
            CheckCodePrefix::W2 => vec![CheckCode::W292],
            CheckCodePrefix::W29 => vec![CheckCode::W292],
@@ -1331,7 +1205,6 @@ impl CheckCodePrefix {

 impl CheckCodePrefix {
    pub fn specificity(&self) -> PrefixSpecificity {
-        #[allow(clippy::match_same_arms)]
        match self {
            CheckCodePrefix::A => PrefixSpecificity::Category,
            CheckCodePrefix::A0 => PrefixSpecificity::Hundreds,
@@ -1385,14 +1258,10 @@ impl CheckCodePrefix {
            CheckCodePrefix::B020 => PrefixSpecificity::Explicit,
            CheckCodePrefix::B021 => PrefixSpecificity::Explicit,
            CheckCodePrefix::B022 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::B023 => PrefixSpecificity::Explicit,
            CheckCodePrefix::B024 => PrefixSpecificity::Explicit,
            CheckCodePrefix::B025 => PrefixSpecificity::Explicit,
            CheckCodePrefix::B026 => PrefixSpecificity::Explicit,
            CheckCodePrefix::B027 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::B9 => PrefixSpecificity::Hundreds,
-            CheckCodePrefix::B90 => PrefixSpecificity::Tens,
-            CheckCodePrefix::B904 => PrefixSpecificity::Explicit,
            CheckCodePrefix::BLE => PrefixSpecificity::Category,
            CheckCodePrefix::BLE0 => PrefixSpecificity::Hundreds,
            CheckCodePrefix::BLE00 => PrefixSpecificity::Tens,
@@ -1502,10 +1371,6 @@ impl CheckCodePrefix {
            CheckCodePrefix::E902 => PrefixSpecificity::Explicit,
            CheckCodePrefix::E99 => PrefixSpecificity::Tens,
            CheckCodePrefix::E999 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::ERA => PrefixSpecificity::Category,
-            CheckCodePrefix::ERA8 => PrefixSpecificity::Hundreds,
-            CheckCodePrefix::ERA80 => PrefixSpecificity::Tens,
-            CheckCodePrefix::ERA001 => PrefixSpecificity::Explicit,
            CheckCodePrefix::F => PrefixSpecificity::Category,
            CheckCodePrefix::F4 => PrefixSpecificity::Hundreds,
            CheckCodePrefix::F40 => PrefixSpecificity::Tens,
@@ -1517,22 +1382,6 @@ impl CheckCodePrefix {
            CheckCodePrefix::F406 => PrefixSpecificity::Explicit,
            CheckCodePrefix::F407 => PrefixSpecificity::Explicit,
            CheckCodePrefix::F5 => PrefixSpecificity::Hundreds,
-            CheckCodePrefix::F50 => PrefixSpecificity::Tens,
-            CheckCodePrefix::F501 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F502 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F503 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F504 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F505 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F506 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F507 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F508 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F509 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F52 => PrefixSpecificity::Tens,
-            CheckCodePrefix::F521 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F522 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F523 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F524 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::F525 => PrefixSpecificity::Explicit,
            CheckCodePrefix::F54 => PrefixSpecificity::Tens,
            CheckCodePrefix::F541 => PrefixSpecificity::Explicit,
            CheckCodePrefix::F6 => PrefixSpecificity::Hundreds,
@@ -1617,9 +1466,6 @@ impl CheckCodePrefix {
            CheckCodePrefix::RUF001 => PrefixSpecificity::Explicit,
            CheckCodePrefix::RUF002 => PrefixSpecificity::Explicit,
            CheckCodePrefix::RUF003 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::RUF1 => PrefixSpecificity::Hundreds,
-            CheckCodePrefix::RUF10 => PrefixSpecificity::Tens,
-            CheckCodePrefix::RUF101 => PrefixSpecificity::Explicit,
            CheckCodePrefix::S => PrefixSpecificity::Category,
            CheckCodePrefix::S1 => PrefixSpecificity::Hundreds,
            CheckCodePrefix::S10 => PrefixSpecificity::Tens,
@@ -1630,9 +1476,6 @@ impl CheckCodePrefix {
            CheckCodePrefix::S106 => PrefixSpecificity::Explicit,
            CheckCodePrefix::S107 => PrefixSpecificity::Explicit,
            CheckCodePrefix::T => PrefixSpecificity::Category,
-            CheckCodePrefix::T1 => PrefixSpecificity::Hundreds,
-            CheckCodePrefix::T10 => PrefixSpecificity::Tens,
-            CheckCodePrefix::T100 => PrefixSpecificity::Explicit,
            CheckCodePrefix::T2 => PrefixSpecificity::Hundreds,
            CheckCodePrefix::T20 => PrefixSpecificity::Tens,
            CheckCodePrefix::T201 => PrefixSpecificity::Explicit,
@@ -1653,8 +1496,6 @@ impl CheckCodePrefix {
            CheckCodePrefix::U011 => PrefixSpecificity::Explicit,
            CheckCodePrefix::U012 => PrefixSpecificity::Explicit,
            CheckCodePrefix::U013 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::U014 => PrefixSpecificity::Explicit,
-            CheckCodePrefix::U015 => PrefixSpecificity::Explicit,
            CheckCodePrefix::W => PrefixSpecificity::Category,
            CheckCodePrefix::W2 => PrefixSpecificity::Hundreds,
            CheckCodePrefix::W29 => PrefixSpecificity::Tens,
@@ -1682,26 +1523,3 @@ impl CheckCodePrefix {
        }
    }
 }
-
-pub const CATEGORIES: &[CheckCodePrefix] = &[
-    CheckCodePrefix::A,
-    CheckCodePrefix::ANN,
-    CheckCodePrefix::B,
-    CheckCodePrefix::BLE,
-    CheckCodePrefix::C,
-    CheckCodePrefix::D,
-    CheckCodePrefix::E,
-    CheckCodePrefix::ERA,
-    CheckCodePrefix::F,
-    CheckCodePrefix::FBT,
-    CheckCodePrefix::I,
-    CheckCodePrefix::M,
-    CheckCodePrefix::N,
-    CheckCodePrefix::Q,
-    CheckCodePrefix::RUF,
-    CheckCodePrefix::S,
-    CheckCodePrefix::T,
-    CheckCodePrefix::U,
-    CheckCodePrefix::W,
-    CheckCodePrefix::YTT,
-];
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -1,21 +1,19 @@
 use std::path::PathBuf;

 use clap::{command, Parser};
+use fnv::FnvHashMap;
 use regex::Regex;
-use rustc_hash::FxHashMap;

-use crate::checks::CheckCode;
 use crate::checks_gen::CheckCodePrefix;
 use crate::logging::LogLevel;
 use crate::printer::SerializationFormat;
-use crate::settings::types::{FilePattern, PatternPrefixPair, PerFileIgnore, PythonVersion};
+use crate::settings::types::{PatternPrefixPair, PerFileIgnore, PythonVersion};

 #[derive(Debug, Parser)]
 #[command(author, about = "Ruff: An extremely fast Python linter.")]
 #[command(version)]
-#[allow(clippy::struct_excessive_bools)]
 pub struct Cli {
-    #[arg(required_unless_present_any = ["explain", "generate_shell_completion"])]
+    #[arg(required = true)]
    pub files: Vec<PathBuf>,
    /// Path to the `pyproject.toml` file to use for configuration.
    #[arg(long)]
@@ -60,11 +58,11 @@ pub struct Cli {
    pub extend_ignore: Vec<CheckCodePrefix>,
    /// List of paths, used to exclude files and/or directories from checks.
    #[arg(long, value_delimiter = ',')]
-    pub exclude: Vec<FilePattern>,
+    pub exclude: Vec<String>,
    /// Like --exclude, but adds additional files and directories on top of the
    /// excluded ones.
    #[arg(long, value_delimiter = ',')]
-    pub extend_exclude: Vec<FilePattern>,
+    pub extend_exclude: Vec<String>,
    /// List of error codes to treat as eligible for autofix. Only applicable
    /// when autofix itself is enabled (e.g., via `--fix`).
    #[arg(long, value_delimiter = ',')]
@@ -77,7 +75,7 @@ pub struct Cli {
    #[arg(long, value_delimiter = ',')]
    pub per_file_ignores: Vec<PatternPrefixPair>,
    /// Output serialization format for error messages.
-    #[arg(long, value_enum, default_value_t = SerializationFormat::Text)]
+    #[arg(long, value_enum, default_value_t=SerializationFormat::Text)]
    pub format: SerializationFormat,
    /// Show violations with source code.
    #[arg(long)]
@@ -111,12 +109,6 @@ pub struct Cli {
    /// The name of the file when passing it through stdin.
    #[arg(long)]
    pub stdin_filename: Option<String>,
-    /// Explain a rule.
-    #[arg(long)]
-    pub explain: Option<CheckCode>,
-    /// Generate shell completion
-    #[arg(long, hide = true, value_name = "SHELL")]
-    pub generate_shell_completion: Option<clap_complete_command::Shell>,
 }

 impl Cli {
@@ -151,8 +143,11 @@ pub fn extract_log_level(cli: &Cli) -> LogLevel {
 }

 /// Convert a list of `PatternPrefixPair` structs to `PerFileIgnore`.
-pub fn collect_per_file_ignores(pairs: Vec<PatternPrefixPair>) -> Vec<PerFileIgnore> {
-    let mut per_file_ignores: FxHashMap<String, Vec<CheckCodePrefix>> = FxHashMap::default();
+pub fn collect_per_file_ignores(
+    pairs: Vec<PatternPrefixPair>,
+    project_root: Option<&PathBuf>,
+) -> Vec<PerFileIgnore> {
+    let mut per_file_ignores: FnvHashMap<String, Vec<CheckCodePrefix>> = FnvHashMap::default();
    for pair in pairs {
        per_file_ignores
            .entry(pair.pattern)
@@ -160,7 +155,7 @@ pub fn collect_per_file_ignores(pairs: Vec<PatternPrefixPair>) -> Vec<PerFileIgn
            .push(pair.prefix);
    }
    per_file_ignores
-        .into_iter()
-        .map(|(pattern, prefixes)| PerFileIgnore::new(pattern, &prefixes))
+        .iter()
+        .map(|(pattern, prefixes)| PerFileIgnore::new(pattern, prefixes, project_root))
        .collect()
 }
--- a/src/code_gen.rs
+++ b/src/code_gen.rs
--- a/src/commands.rs
+++ b/src/commands.rs
@@ -1,66 +0,0 @@
-use std::path::PathBuf;
-
-use anyhow::Result;
-use serde::Serialize;
-use walkdir::DirEntry;
-
-use crate::checks::CheckCode;
-use crate::fs::iter_python_files;
-use crate::printer::SerializationFormat;
-use crate::{Configuration, Settings};
-
-/// Print the user-facing configuration settings.
-pub fn show_settings(
-    configuration: &Configuration,
-    project_root: Option<&PathBuf>,
-    pyproject: Option<&PathBuf>,
-) {
-    println!("Resolved configuration: {configuration:#?}");
-    println!("Found project root at: {project_root:?}");
-    println!("Found pyproject.toml at: {pyproject:?}");
-}
-
-/// Show the list of files to be checked based on current settings.
-pub fn show_files(files: &[PathBuf], settings: &Settings) {
-    let mut entries: Vec<DirEntry> = files
-        .iter()
-        .flat_map(|path| iter_python_files(path, &settings.exclude, &settings.extend_exclude))
-        .flatten()
-        .collect();
-    entries.sort_by(|a, b| a.path().cmp(b.path()));
-    for entry in entries {
-        println!("{}", entry.path().to_string_lossy());
-    }
-}
-
-#[derive(Serialize)]
-struct Explanation<'a> {
-    code: &'a str,
-    category: &'a str,
-    summary: &'a str,
-}
-
-/// Explain a `CheckCode` to the user.
-pub fn explain(code: &CheckCode, format: SerializationFormat) -> Result<()> {
-    match format {
-        SerializationFormat::Text => {
-            println!(
-                "{} ({}): {}",
-                code.as_ref(),
-                code.category().title(),
-                code.kind().summary()
-            );
-        }
-        SerializationFormat::Json => {
-            println!(
-                "{}",
-                serde_json::to_string_pretty(&Explanation {
-                    code: code.as_ref(),
-                    category: code.category().title(),
-                    summary: &code.kind().summary(),
-                })?
-            );
-        }
-    };
-    Ok(())
-}
--- a/src/directives.rs
+++ b/src/directives.rs
@@ -11,22 +11,23 @@ use crate::{Settings, SourceCodeLocator};

 bitflags! {
    pub struct Flags: u32 {
-        const NOQA = 0b0000_0001;
-        const ISORT = 0b0000_0010;
+        const NOQA = 0b00000001;
+        const ISORT = 0b00000010;
    }
 }

 impl Flags {
    pub fn from_settings(settings: &Settings) -> Self {
-        if settings
-            .enabled
-            .iter()
-            .any(|check_code| matches!(check_code.lint_source(), LintSource::Imports))
-        {
-            Flags::NOQA | Flags::ISORT
-        } else {
-            Flags::NOQA
-        }
+        Flags::NOQA
+        // if settings
+        //     .enabled
+        //     .iter()
+        //     .any(|check_code| matches!(check_code.lint_source(), LintSource::Imports))
+        // {
+        //     Flags::NOQA | Flags::ISORT
+        // } else {
+        //     Flags::NOQA
+        // }
    }
 }

@@ -38,18 +39,18 @@ pub struct Directives {
 pub fn extract_directives(
    lxr: &[LexResult],
    locator: &SourceCodeLocator,
-    flags: Flags,
+    flags: &Flags,
 ) -> Directives {
    Directives {
        noqa_line_for: if flags.contains(Flags::NOQA) {
            extract_noqa_line_for(lxr)
        } else {
-            IntMap::default()
+            Default::default()
        },
        isort_exclusions: if flags.contains(Flags::ISORT) {
            extract_isort_exclusions(lxr, locator)
        } else {
-            IntSet::default()
+            Default::default()
        },
    }
 }
@@ -75,13 +76,13 @@ pub fn extract_noqa_line_for(lxr: &[LexResult]) -> IntMap<usize, usize> {
 /// Extract a set of lines over which to disable isort.
 pub fn extract_isort_exclusions(lxr: &[LexResult], locator: &SourceCodeLocator) -> IntSet<usize> {
    let mut exclusions: IntSet<usize> = IntSet::default();
-    let mut off: Option<Location> = None;
-    for &(start, ref tok, end) in lxr.iter().flatten() {
+    let mut off: Option<&Location> = None;
+    for (start, tok, end) in lxr.iter().flatten() {
        // TODO(charlie): Modify RustPython to include the comment text in the token.
        if matches!(tok, Tok::Comment) {
            let comment_text = locator.slice_source_code_range(&Range {
-                location: start,
-                end_location: end,
+                location: *start,
+                end_location: *end,
            });
            if off.is_some() {
                if comment_text == "# isort: on" {
@@ -113,7 +114,7 @@ pub fn extract_isort_exclusions(lxr: &[LexResult], locator: &SourceCodeLocator)

 #[cfg(test)]
 mod tests {
-
+    use anyhow::Result;
    use nohash_hasher::IntMap;
    use rustpython_parser::lexer;
    use rustpython_parser::lexer::LexResult;
@@ -121,8 +122,8 @@ mod tests {
    use crate::directives::extract_noqa_line_for;

    #[test]
-    fn extraction() {
-        let empty: IntMap<usize, usize> = IntMap::default();
+    fn extraction() -> Result<()> {
+        let empty: IntMap<usize, usize> = Default::default();

        let lxr: Vec<LexResult> = lexer::make_tokenizer(
            "x = 1
@@ -200,5 +201,7 @@ z = x + 1",
            extract_noqa_line_for(&lxr),
            IntMap::from_iter([(2, 5), (3, 5), (4, 5)])
        );
+
+        Ok(())
    }
 }
--- a/src/docstrings/constants.rs
+++ b/src/docstrings/constants.rs
@@ -1,5 +0,0 @@
-pub const TRIPLE_QUOTE_PREFIXES: &[&str] = &[
-    "ur\"\"\"", "ur'''", "u\"\"\"", "u'''", "r\"\"\"", "r'''", "\"\"\"", "'''",
-];
-
-pub const SINGLE_QUOTE_PREFIXES: &[&str] = &["ur\"", "ur'", "u\"", "u'", "r\"", "r'", "\"", "'"];
--- a/src/docstrings/google.rs
+++ b/src/docstrings/google.rs
@@ -1,10 +1,10 @@
 //! Abstractions for Google-style docstrings.

+use fnv::FnvHashSet;
 use once_cell::sync::Lazy;
-use rustc_hash::FxHashSet;

-pub(crate) static GOOGLE_SECTION_NAMES: Lazy<FxHashSet<&'static str>> = Lazy::new(|| {
-    FxHashSet::from_iter([
+pub(crate) static GOOGLE_SECTION_NAMES: Lazy<FnvHashSet<&'static str>> = Lazy::new(|| {
+    FnvHashSet::from_iter([
        "Args",
        "Arguments",
        "Attention",
@@ -36,35 +36,36 @@ pub(crate) static GOOGLE_SECTION_NAMES: Lazy<FxHashSet<&'static str>> = Lazy::ne
    ])
 });

-pub(crate) static LOWERCASE_GOOGLE_SECTION_NAMES: Lazy<FxHashSet<&'static str>> = Lazy::new(|| {
-    FxHashSet::from_iter([
-        "args",
-        "arguments",
-        "attention",
-        "attributes",
-        "caution",
-        "danger",
-        "error",
-        "example",
-        "examples",
-        "hint",
-        "important",
-        "keyword args",
-        "keyword arguments",
-        "methods",
-        "note",
-        "notes",
-        "return",
-        "returns",
-        "raises",
-        "references",
-        "see also",
-        "tip",
-        "todo",
-        "warning",
-        "warnings",
-        "warns",
-        "yield",
-        "yields",
-    ])
-});
+pub(crate) static LOWERCASE_GOOGLE_SECTION_NAMES: Lazy<FnvHashSet<&'static str>> =
+    Lazy::new(|| {
+        FnvHashSet::from_iter([
+            "args",
+            "arguments",
+            "attention",
+            "attributes",
+            "caution",
+            "danger",
+            "error",
+            "example",
+            "examples",
+            "hint",
+            "important",
+            "keyword args",
+            "keyword arguments",
+            "methods",
+            "note",
+            "notes",
+            "return",
+            "returns",
+            "raises",
+            "references",
+            "see also",
+            "tip",
+            "todo",
+            "warning",
+            "warnings",
+            "warns",
+            "yield",
+            "yields",
+        ])
+    });
--- a/src/docstrings/helpers.rs
+++ b/src/docstrings/helpers.rs
@@ -3,6 +3,12 @@ use rustpython_ast::{Located, Location};
 use crate::ast::types::Range;
 use crate::check_ast::Checker;

+pub const TRIPLE_QUOTE_PREFIXES: &[&str] = &[
+    "ur\"\"\"", "ur'''", "u\"\"\"", "u'''", "r\"\"\"", "r'''", "\"\"\"", "'''",
+];
+
+pub const SINGLE_QUOTE_PREFIXES: &[&str] = &["ur\"", "ur'", "u\"", "u'", "r\"", "r'", "\"", "'"];
+
 /// Extract the leading words from a line of text.
 pub fn leading_words(line: &str) -> String {
    line.trim()
@@ -19,7 +25,7 @@ pub fn leading_space(line: &str) -> String {
 }

 /// Extract the leading indentation from a line.
-pub fn indentation<T>(checker: &Checker, located: &Located<T>) -> String {
+pub fn indentation<'a, T>(checker: &'a Checker, located: &Located<T>) -> String {
    let range = Range::from_located(located);
    checker
        .locator
--- a/src/docstrings/mod.rs
+++ b/src/docstrings/mod.rs
@@ -1,7 +1,7 @@
-pub mod constants;
 pub mod definition;
 pub mod extraction;
 pub mod google;
+pub mod helpers;
 pub mod numpy;
 pub mod sections;
 pub mod styles;
--- a/src/docstrings/numpy.rs
+++ b/src/docstrings/numpy.rs
@@ -1,10 +1,10 @@
 //! Abstractions for NumPy-style docstrings.

+use fnv::FnvHashSet;
 use once_cell::sync::Lazy;
-use rustc_hash::FxHashSet;

-pub(crate) static LOWERCASE_NUMPY_SECTION_NAMES: Lazy<FxHashSet<&'static str>> = Lazy::new(|| {
-    FxHashSet::from_iter([
+pub(crate) static LOWERCASE_NUMPY_SECTION_NAMES: Lazy<FnvHashSet<&'static str>> = Lazy::new(|| {
+    FnvHashSet::from_iter([
        "short summary",
        "extended summary",
        "parameters",
@@ -21,8 +21,8 @@ pub(crate) static LOWERCASE_NUMPY_SECTION_NAMES: Lazy<FxHashSet<&'static str>> =
    ])
 });

-pub(crate) static NUMPY_SECTION_NAMES: Lazy<FxHashSet<&'static str>> = Lazy::new(|| {
-    FxHashSet::from_iter([
+pub(crate) static NUMPY_SECTION_NAMES: Lazy<FnvHashSet<&'static str>> = Lazy::new(|| {
+    FnvHashSet::from_iter([
        "Short Summary",
        "Extended Summary",
        "Parameters",
--- a/src/docstrings/sections.rs
+++ b/src/docstrings/sections.rs
@@ -1,4 +1,4 @@
-use crate::ast::whitespace;
+use crate::docstrings::helpers;
 use crate::docstrings::styles::SectionStyle;

 #[derive(Debug)]
@@ -14,7 +14,7 @@ pub(crate) struct SectionContext<'a> {
 fn suspected_as_section(line: &str, style: &SectionStyle) -> bool {
    style
        .lowercase_section_names()
-        .contains(&whitespace::leading_words(line).to_lowercase().as_str())
+        .contains(&helpers::leading_words(line).to_lowercase().as_str())
 }

 /// Check if the suspected context is really a section header.
@@ -64,7 +64,7 @@ pub(crate) fn section_contexts<'a>(
    let mut contexts = vec![];
    for lineno in suspected_section_indices {
        let context = SectionContext {
-            section_name: whitespace::leading_words(lines[lineno]),
+            section_name: helpers::leading_words(lines[lineno]),
            previous_line: lines[lineno - 1],
            line: lines[lineno],
            following_lines: &lines[lineno + 1..],
--- a/src/docstrings/styles.rs
+++ b/src/docstrings/styles.rs
@@ -1,5 +1,5 @@
+use fnv::FnvHashSet;
 use once_cell::sync::Lazy;
-use rustc_hash::FxHashSet;

 use crate::docstrings::google::{GOOGLE_SECTION_NAMES, LOWERCASE_GOOGLE_SECTION_NAMES};
 use crate::docstrings::numpy::{LOWERCASE_NUMPY_SECTION_NAMES, NUMPY_SECTION_NAMES};
@@ -10,14 +10,14 @@ pub(crate) enum SectionStyle {
 }

 impl SectionStyle {
-    pub(crate) fn section_names(&self) -> &Lazy<FxHashSet<&'static str>> {
+    pub(crate) fn section_names(&self) -> &Lazy<FnvHashSet<&'static str>> {
        match self {
            SectionStyle::NumPy => &NUMPY_SECTION_NAMES,
            SectionStyle::Google => &GOOGLE_SECTION_NAMES,
        }
    }

-    pub(crate) fn lowercase_section_names(&self) -> &Lazy<FxHashSet<&'static str>> {
+    pub(crate) fn lowercase_section_names(&self) -> &Lazy<FnvHashSet<&'static str>> {
        match self {
            SectionStyle::NumPy => &LOWERCASE_NUMPY_SECTION_NAMES,
            SectionStyle::Google => &LOWERCASE_GOOGLE_SECTION_NAMES,
--- a/src/eradicate/checks.rs
+++ b/src/eradicate/checks.rs
@@ -1,51 +0,0 @@
-use rustpython_ast::Location;
-
-use crate::ast::types::Range;
-use crate::autofix::Fix;
-use crate::checks::{CheckCode, CheckKind};
-use crate::eradicate::detection::comment_contains_code;
-use crate::{Check, Settings, SourceCodeLocator};
-
-fn is_standalone_comment(line: &str) -> bool {
-    for char in line.chars() {
-        if char == '#' {
-            return true;
-        } else if !char.is_whitespace() {
-            return false;
-        }
-    }
-    unreachable!("Comment should contain '#' character")
-}
-
-/// ERA001
-pub fn commented_out_code(
-    locator: &SourceCodeLocator,
-    start: Location,
-    end: Location,
-    settings: &Settings,
-    autofix: bool,
-) -> Option<Check> {
-    let location = Location::new(start.row(), 0);
-    let end_location = Location::new(end.row() + 1, 0);
-    let line = locator.slice_source_code_range(&Range {
-        location,
-        end_location,
-    });
-
-    // Verify that the comment is on its own line, and that it contains code.
-    if is_standalone_comment(&line) && comment_contains_code(&line) {
-        let mut check = Check::new(
-            CheckKind::CommentedOutCode,
-            Range {
-                location: start,
-                end_location: end,
-            },
-        );
-        if autofix && settings.fixable.contains(&CheckCode::ERA001) {
-            check.amend(Fix::deletion(location, end_location));
-        }
-        Some(check)
-    } else {
-        None
-    }
-}
--- a/src/eradicate/detection.rs
+++ b/src/eradicate/detection.rs
@@ -1,223 +0,0 @@
-/// See: [eradicate.py](https://github.com/myint/eradicate/blob/98f199940979c94447a461d50d27862b118b282d/eradicate.py)
-use once_cell::sync::Lazy;
-use regex::Regex;
-
-static ALLOWLIST_REGEX: Lazy<Regex> = Lazy::new(|| {
-    Regex::new(
-        r"(?i)pylint|pyright|noqa|nosec|type:\s*ignore|fmt:\s*(on|off)|isort:\s*(on|off|skip|skip_file|split|dont-add-imports(:\s*\[.*?])?)|TODO|FIXME|XXX"
-    ).unwrap()
-});
-static BRACKET_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"^[()\[\]{}\s]+$").unwrap());
-static CODE_INDICATORS: &[&str] = &[
-    "(", ")", "[", "]", "{", "}", ":", "=", "%", "print", "return", "break", "continue", "import",
-];
-static CODE_KEYWORDS: Lazy<Vec<Regex>> = Lazy::new(|| {
-    vec![
-        Regex::new(r"^\s*elif\s+.*\s*:\s*$").unwrap(),
-        Regex::new(r"^\s*else\s*:\s*$").unwrap(),
-        Regex::new(r"^\s*try\s*:\s*$").unwrap(),
-        Regex::new(r"^\s*finally\s*:\s*$").unwrap(),
-        Regex::new(r"^\s*except\s+.*\s*:\s*$").unwrap(),
-    ]
-});
-static CODING_COMMENT_REGEX: Lazy<Regex> =
-    Lazy::new(|| Regex::new(r"^.*?coding[:=][ \t]*([-_.a-zA-Z0-9]+)").unwrap());
-static HASH_NUMBER: Lazy<Regex> = Lazy::new(|| Regex::new(r"#\d").unwrap());
-static MULTILINE_ASSIGNMENT_REGEX: Lazy<Regex> =
-    Lazy::new(|| Regex::new(r"^\s*\w+\s*=.*[(\[{]$").unwrap());
-static PARTIAL_DICTIONARY_REGEX: Lazy<Regex> =
-    Lazy::new(|| Regex::new(r#"^\s*['"]\w+['"]\s*:.+[,{]\s*$"#).unwrap());
-static PRINT_RETURN_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"^(print|return)\b\s*").unwrap());
-
-/// Returns `true` if a comment contains Python code.
-pub fn comment_contains_code(line: &str) -> bool {
-    let line = if let Some(line) = line.trim().strip_prefix('#') {
-        line.trim()
-    } else {
-        return false;
-    };
-
-    // Ignore non-comment related hashes (e.g., "# Issue #999").
-    if HASH_NUMBER.is_match(line) {
-        return false;
-    }
-
-    // Ignore whitelisted comments.
-    if ALLOWLIST_REGEX.is_match(line) {
-        return false;
-    }
-
-    if CODING_COMMENT_REGEX.is_match(line) {
-        return false;
-    }
-
-    // Check that this is possibly code.
-    if CODE_INDICATORS.iter().all(|symbol| !line.contains(symbol)) {
-        return false;
-    }
-
-    if multiline_case(line) {
-        return true;
-    }
-
-    if CODE_KEYWORDS.iter().any(|symbol| symbol.is_match(line)) {
-        return true;
-    }
-
-    let line = PRINT_RETURN_REGEX.replace_all(line, "");
-
-    if PARTIAL_DICTIONARY_REGEX.is_match(&line) {
-        return true;
-    }
-
-    // Finally, compile the source code.
-    rustpython_parser::parser::parse_program(&line, "<filename>").is_ok()
-}
-
-/// Returns `true` if a line is probably part of some multiline code.
-fn multiline_case(line: &str) -> bool {
-    if line.ends_with('\\') {
-        return true;
-    }
-
-    if MULTILINE_ASSIGNMENT_REGEX.is_match(line) {
-        return true;
-    }
-
-    if BRACKET_REGEX.is_match(line) {
-        return true;
-    }
-
-    false
-}
-
-#[cfg(test)]
-mod tests {
-    use crate::eradicate::detection::comment_contains_code;
-
-    #[test]
-    fn comment_contains_code_basic() {
-        assert!(comment_contains_code("# x = 1"));
-        assert!(comment_contains_code("#from foo import eradicate"));
-        assert!(comment_contains_code("#import eradicate"));
-        assert!(comment_contains_code(r#"#"key": value,"#));
-        assert!(comment_contains_code(r#"#"key": "value","#));
-        assert!(comment_contains_code(r#"#"key": 1 + 1,"#));
-        assert!(comment_contains_code("#'key': 1 + 1,"));
-        assert!(comment_contains_code(r#"#"key": {"#));
-        assert!(comment_contains_code("#}"));
-        assert!(comment_contains_code("#} )]"));
-
-        assert!(!comment_contains_code("#"));
-        assert!(!comment_contains_code("# This is a (real) comment."));
-        assert!(!comment_contains_code("# 123"));
-        assert!(!comment_contains_code("# 123.1"));
-        assert!(!comment_contains_code("# 1, 2, 3"));
-        assert!(!comment_contains_code("x = 1  # x = 1"));
-        assert!(!comment_contains_code(
-            "# pylint: disable=redefined-outer-name"
-        ));
-        assert!(!comment_contains_code("# Issue #999: This is not code"));
-
-        // TODO(charlie): This should be `true` under aggressive mode.
-        assert!(!comment_contains_code("#},"));
-    }
-
-    #[test]
-    fn comment_contains_code_with_print() {
-        assert!(comment_contains_code("#print"));
-        assert!(comment_contains_code("#print(1)"));
-        assert!(comment_contains_code("#print 1"));
-
-        assert!(!comment_contains_code("#to print"));
-    }
-
-    #[test]
-    fn comment_contains_code_with_return() {
-        assert!(comment_contains_code("#return x"));
-
-        assert!(!comment_contains_code("#to print"));
-    }
-
-    #[test]
-    fn comment_contains_code_with_multiline() {
-        assert!(comment_contains_code("#else:"));
-        assert!(comment_contains_code("#  else  :  "));
-        assert!(comment_contains_code(r#"# "foo %d" % \\"#));
-        assert!(comment_contains_code("#elif True:"));
-        assert!(comment_contains_code("#x = foo("));
-        assert!(comment_contains_code("#except Exception:"));
-
-        assert!(!comment_contains_code("# this is = to that :("));
-        assert!(!comment_contains_code("#else"));
-        assert!(!comment_contains_code("#or else:"));
-        assert!(!comment_contains_code("#else True:"));
-
-        // TODO(charlie): This should be `true` under aggressive mode.
-        assert!(!comment_contains_code("#def foo():"));
-    }
-
-    #[test]
-    fn comment_contains_code_with_sentences() {
-        assert!(!comment_contains_code("#code is good"));
-    }
-
-    #[test]
-    fn comment_contains_code_with_encoding() {
-        assert!(comment_contains_code("# codings=utf-8"));
-
-        assert!(!comment_contains_code("# coding=utf-8"));
-        assert!(!comment_contains_code("#coding= utf-8"));
-        assert!(!comment_contains_code("# coding: utf-8"));
-        assert!(!comment_contains_code("# encoding: utf8"));
-    }
-
-    #[test]
-    fn comment_contains_code_with_default_allowlist() {
-        assert!(!comment_contains_code("# pylint: disable=A0123"));
-        assert!(!comment_contains_code("# pylint:disable=A0123"));
-        assert!(!comment_contains_code("# pylint: disable = A0123"));
-        assert!(!comment_contains_code("# pylint:disable = A0123"));
-        assert!(!comment_contains_code("# pyright: reportErrorName=true"));
-        assert!(!comment_contains_code("# noqa"));
-        assert!(!comment_contains_code("# NOQA"));
-        assert!(!comment_contains_code("# noqa: A123"));
-        assert!(!comment_contains_code("# noqa:A123"));
-        assert!(!comment_contains_code("# nosec"));
-        assert!(!comment_contains_code("# fmt: on"));
-        assert!(!comment_contains_code("# fmt: off"));
-        assert!(!comment_contains_code("# fmt:on"));
-        assert!(!comment_contains_code("# fmt:off"));
-        assert!(!comment_contains_code("# isort: on"));
-        assert!(!comment_contains_code("# isort:on"));
-        assert!(!comment_contains_code("# isort: off"));
-        assert!(!comment_contains_code("# isort:off"));
-        assert!(!comment_contains_code("# isort: skip"));
-        assert!(!comment_contains_code("# isort:skip"));
-        assert!(!comment_contains_code("# isort: skip_file"));
-        assert!(!comment_contains_code("# isort:skip_file"));
-        assert!(!comment_contains_code("# isort: split"));
-        assert!(!comment_contains_code("# isort:split"));
-        assert!(!comment_contains_code("# isort: dont-add-imports"));
-        assert!(!comment_contains_code("# isort:dont-add-imports"));
-        assert!(!comment_contains_code(
-            "# isort: dont-add-imports: [\"import os\"]"
-        ));
-        assert!(!comment_contains_code(
-            "# isort:dont-add-imports: [\"import os\"]"
-        ));
-        assert!(!comment_contains_code(
-            "# isort: dont-add-imports:[\"import os\"]"
-        ));
-        assert!(!comment_contains_code(
-            "# isort:dont-add-imports:[\"import os\"]"
-        ));
-        assert!(!comment_contains_code("# type: ignore"));
-        assert!(!comment_contains_code("# type:ignore"));
-        assert!(!comment_contains_code("# type: ignore[import]"));
-        assert!(!comment_contains_code("# type:ignore[import]"));
-        assert!(!comment_contains_code("# TODO: Do that"));
-        assert!(!comment_contains_code("# FIXME: Fix that"));
-        assert!(!comment_contains_code("# XXX: What ever"));
-    }
-}
--- a/src/eradicate/mod.rs
+++ b/src/eradicate/mod.rs
@@ -1,2 +0,0 @@
-pub mod checks;
-pub mod detection;
--- a/Show More
+++ b/Show More