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perf(linter/no-constructor-return): optimize loop#12138

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07-08-perf_linter_no-constructor-return_optimize_loop
Jul 8, 2025
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perf(linter/no-constructor-return): optimize loop#12138
graphite-app[bot] merged 1 commit intomainfrom
07-08-perf_linter_no-constructor-return_optimize_loop

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@overlookmotel overlookmotel commented Jul 8, 2025

Small optimization to eslint/no-constructor-return rule:

  1. After finding a Function, there's no need to check if parent is a Function too. That's not relevant.
  2. Exit immediately after finding an ArrowFunctionExpression. Its parent can't be a MethodDefinition which is a constructor.
  3. Skip the first result of iterator, since we know it's a ReturnStatement.

@github-actions github-actions bot added A-linter Area - Linter C-performance Category - Solution not expected to change functional behavior, only performance labels Jul 8, 2025
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overlookmotel commented Jul 8, 2025


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@overlookmotel overlookmotel changed the base branch from 07-08-perf_semantic_dereference_parent_id_s_to_slice_only_once to graphite-base/12138 July 8, 2025 16:39
@overlookmotel overlookmotel force-pushed the 07-08-perf_linter_no-constructor-return_optimize_loop branch from fc8e09d to 3253b56 Compare July 8, 2025 16:39
@overlookmotel overlookmotel force-pushed the graphite-base/12138 branch from 3c6cb16 to d4ebd14 Compare July 8, 2025 16:39
@overlookmotel overlookmotel changed the base branch from graphite-base/12138 to main July 8, 2025 16:39
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codspeed-hq bot commented Jul 8, 2025

CodSpeed Instrumentation Performance Report

Merging #12138 will not alter performance

Comparing 07-08-perf_linter_no-constructor-return_optimize_loop (7103527) with main (bde1ef1)

Summary

✅ 34 untouched benchmarks

@overlookmotel overlookmotel marked this pull request as ready for review July 8, 2025 16:53
@overlookmotel overlookmotel requested a review from camc314 as a code owner July 8, 2025 16:53
@overlookmotel overlookmotel marked this pull request as draft July 8, 2025 16:54
@overlookmotel overlookmotel marked this pull request as ready for review July 8, 2025 16:54
@overlookmotel overlookmotel added the 0-merge Merge with Graphite Merge Queue label Jul 8, 2025
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overlookmotel commented Jul 8, 2025

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Small optimization to `eslint/no-constructor-return` rule:

1. After finding a `Function`, there's no need to check if parent is a `Function` too. That's not relevant.
2. Exit immediately after finding an `ArrowFunctionExpression`. Its parent can't be a `MethodDefinition` which is a constructor.
3. Skip the first result of iterator, since we know it's a `ReturnStatement`.
@graphite-app graphite-app bot force-pushed the 07-08-perf_linter_no-constructor-return_optimize_loop branch from 3253b56 to 7103527 Compare July 8, 2025 22:44
@graphite-app graphite-app bot merged commit 7103527 into main Jul 8, 2025
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@graphite-app graphite-app bot deleted the 07-08-perf_linter_no-constructor-return_optimize_loop branch July 8, 2025 22:47
@graphite-app graphite-app bot removed the 0-merge Merge with Graphite Merge Queue label Jul 8, 2025
camc314 added a commit that referenced this pull request Jul 16, 2025
## [1.7.0] - 2025-07-16

### 🚀 Features

- 5e428a4 linter/eslint-plugin-next: No-html-link-for-pages rule
addition (#12194) (Gabriel Díaz Aguilera)
- 9b14fbc ast: Add `ThisExpression` to `TSTypeName` (#12156) (Boshen)
- c551b8f linter: Report diagnostics from custom plugins (#12219)
(camc314)
- d387729 linter: JS custom rules config (#12160) (camc314)
- 152e59d napi/oxlint: Read source text into start of allocator (#12122)
(overlookmotel)
- bde1ef1 linter: Load custom JS plugins (#11980) (camc314)
- d4ebd14 linter: Add `oxlint2`/`disable_oxlint2` feature flags (#12130)
(camc314)
- a4dae73 linter: Introduce `LintPlugins` to store builtin + custom
plugins (#12117) (camc314)

### 🐛 Bug Fixes

- 3f9a1f0 linter/no-unused-private-class-members: Fix false positive
with nullish coalescing assignments (#12317) (camc314)
- 47fad0e linter/no-empty-file: False positive with empty file with
triple slash directive (#12293) (camc314)
- 633ba30 linter: False positive with unknown plugins when unmatched
eslint rule (#12285) (camc314)
- 9720774 linter: Report implicit config parse errors (#12260) (Simon
Buchan)
- 1920c6b language_server: Respect the root `.oxlintrc.json` file for
`ignorePatterns` (#12171) (Sysix)
- 98708eb linter: Fix inconsistent behavior in `no-duplicate-imports`
rule (#12192) (yefan)
- 853d2bc linter, language_server: Correctly identify usage of `import`
plugin (#12157) (overlookmotel)

### 🚜 Refactor

- ee761de ast: Remove `AstKind` for `AssignmentTarget` (#12252) (Tyler
Earls)
- c68b607 ast: Rename `TemplateLiteral::quasi` to
`TemplateLiteral::single_quasi` (#12266) (Dunqing)
- 32c32af ast: Check whether there is a single `quasi` in
`TemplateLiteral::quasi` (#12265) (Dunqing)
- 8f6a1da linter/js-plugins: Use `u32` for IDs (#12243) (overlookmotel)
- 36cd364 linter/js-plugins: Clean up code (#12242) (overlookmotel)
- 8c02ebd linter/js-plugins: Rename `specifiers` to `paths` (#12241)
(overlookmotel)
- 3adaf98 linter: Simplify getting nodes count (#12239) (overlookmotel)
- 6e54645 language_server: Store `LintService` instead of `Linter`
(#12016) (Sysix)
- 113cf8c linter: Move `LintServiceOptions.paths` to
`LintService.with_paths` (#12015) (Sysix)
- acfac68 oxlint: Adjust ignore patterns by counting bytes instead of
chars (#12209) (Sysix)
- 729b82b linter: Rename `plugin_name` to `plugin_specifier` (#12148)
(overlookmotel)
- 532b816 linter: Use `to_string` instead of `into` (#12147)
(overlookmotel)
- 89f2a69 linter: TODO comment (#12146) (overlookmotel)
- f90d3e1 linter: Feature gate `load_external_plugin` by both `oxlint2`
and `disable_oxlint2` features (#12141) (overlookmotel)
- 12e4ec7 linter: Make `tokio` dependency optional (#12140)
(overlookmotel)
- 1d2eaca oxlint2: Introduce `force_test_reporter` feature for
consistent graphical outputs (#12133) (camc314)
- 8814c53 ast: Remove `AstKind` for `PropertyKey` (#12108) (camchenry)
- 228cff5 semantic,linter: Assert that Program is always the first node
(#12123) (Ulrich Stark)
- e8e2a25 ast: Remove `AstKind` for `AssignmentTargetPattern` (#12105)
(camchenry)
- f7c675d linter: Rename `LintPlugins` to `BuiltinLintPlugins` (#12116)
(camc314)
- a9e5ec0 linter: Access plugins through config instead of storing
directly (#12115) (camc314)
- 9736a7f linter: Simplify `unicorn/require-post-message-target-origin`
(#12110) (shulaoda)

### 📚 Documentation

- 2e3db46 linter: Add missing backtick preventing website from building
(#12113) (camc314)

### ⚡ Performance

- d0f8b88 linter/js-plugins: Do not copy `Vec` (#12248) (overlookmotel)
- 4284d19 linter/js-plugins: Use hashmap `Entry` API + remove temp `Vec`
(#12247) (overlookmotel)
- c7889c3 semantic,linter: Simplify implementation and uses of ancestors
iterators (#12164) (Ulrich Stark)
- f99959c linter: Move work out of loop (#12145) (overlookmotel)
- 514d40c linter: Do not create `Resolver` unless required (#12142)
(overlookmotel)
- 7103527 linter/no-constructor-return: Optimize loop (#12138)
(overlookmotel)

### 🧪 Testing

- d1194e8 oxlint: Ignore test on windows (#12262) (camc314)

Co-authored-by: camc314 <18101008+camc314@users.noreply.github.com>
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