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fix(formatter): preserve type alias comment break#22261

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leaysgur merged 5 commits into
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JoviDeCroock:JoviDeCroock/fix-issue-22043
May 12, 2026
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fix(formatter): preserve type alias comment break#22261
leaysgur merged 5 commits into
oxc-project:mainfrom
JoviDeCroock:JoviDeCroock/fix-issue-22043

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@JoviDeCroock

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Fixes #22043

Note

Authored by me and supplementary review by GPT5.5 - which lead to finding 491617a

Fixes formatter handling for type aliases where a line comment after = is followed by a block comment before the type annotation.

@codspeed-hq

codspeed-hq Bot commented May 8, 2026

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Merging this PR will not alter performance

✅ 44 untouched benchmarks
⏩ 7 skipped benchmarks1


Comparing JoviDeCroock:JoviDeCroock/fix-issue-22043 (7dad8fa) with main (1d04903)2

Open in CodSpeed

Footnotes

  1. 7 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports.

  2. No successful run was found on main (ff859ad) during the generation of this report, so 1d04903 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.

@JoviDeCroock JoviDeCroock force-pushed the JoviDeCroock/fix-issue-22043 branch from 491617a to b04c816 Compare May 8, 2026 19:31
@camc314 camc314 added the A-formatter Area - Formatter label May 9, 2026
@leaysgur

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/oxfmt-ecosys

@github-actions

github-actions Bot commented May 12, 2026

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Oxfmt Ecosystem CI

suite oxfmt@latest refs/pull/22261/head branch
actualbudget/actual
AmanVarshney01/create-better-t-stack
fastify/fastify-vite
fuma-nama/fumadocs
Comfy-Org/ComfyUI_frontend
getsentry/sentry-javascript
huggingface/huggingface.js
eggjs/egg
vuejs/pinia
dyad-sh/dyad
monkeytypegame/monkeytype
openclaw/openclaw
mastodon/mastodon
vercel/turborepo
cloudflare/agents
lichess-org/lila
tale/headplane
cnpm/cnpmcore
vuejs/core
formatjs/formatjs
npmx-dev/npmx.dev
aidenybai/react-grab
rolldown/rolldown

@leaysgur

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Thank you!

@leaysgur leaysgur merged commit 8046222 into oxc-project:main May 12, 2026
35 checks passed
graphite-app Bot pushed a commit that referenced this pull request May 12, 2026
overlookmotel added a commit that referenced this pull request May 15, 2026
# Oxlint
### 🚀 Features

- 5478fb5 linter/jsdoc: Implement `require-throws-description` rule
(#22386) (Mikhail Baev)
- b46d4de linter: Add `--debug` options and add per-rule timing info
(#22282) (camchenry)
- c73225e linter/eslint: Implement `prefer-arrow-callback` rule (#22312)
(박천(Cheon Park))
- de82b59 linter: Add support for `eslint-plugin-jsx-a11y-x` (#22356)
(mehm8128)
- b170da3 linter: Implement no-implicit-globals (#22249) (Jovi De
Croock)
- f44b6c8 linter: Fill schemas `DummyRuleMap` with built-in rules
(#22288) (Sysix)
- 5cdb80d linter/jsx-a11y/: Implement
no-interactive-element-to-noninteractive-role (#22332) (anarefolio)
- 2749422 linter/jsx-a11y: Add no-noninteractive-element-interactions
(#22337) (Pablo Tovar)
- ba2a1d3 linter/jsdoc: Implement `require-throws-type` rule (#22358)
(Mikhail Baev)
- d90729d linter/jsx-a11y: Implement control-has-associated-label
(#21985) (mehm8128)
- 1d04903 linter/jsdoc: Implement `require-yields-type` rule (#22331)
(Mikhail Baev)

### 🐛 Bug Fixes

- 04c4609 linter/no-nullable-type-assertion-style: Mark as suggestion
(#22450) (camc314)
- 1c2b7ec linter/no-unused-vars: Handle shadowed self assignments
(#22387) (camc314)
- 9faa1d5 linter/no-noninteractive-tabindex: Check conditional
expressions (#22435) (camc314)
- 0854b3a linter/prefer-arrow-callback: Preserve TSX generic arrows in
fixer (#22434) (camc314)
- 410b814 linter: Supply `source_type` to codegen fixer (#22433)
(camc314)
- 3c1bb6f linter: Skip per-node dispatch for run_once-only rules in
large files (#22398) (Connor Shea)
- 5206cde linter/no-unused-vars: Improve type-only rest parameters
diagnostic (#22385) (camc314)
- c9a22b5 linter/consistent-function-scoping: Allow imported bindings
(#22384) (camc314)
- c1e966d linter: Report type-only unused parameters in no-unused-vars
(#22368) (camchenry)
- 4818d98 linter: Check whether path is under root before ignoring it
(#20101) (Leonabcd123)
- 41fcdcf linter: Fix rule count not including override rules (#19898)
(Daniel Osmond)
- 59b4f0e linter: Fix 'explicit-module-boundary-types' false positive
with 'allowOverloadFunctions' (#22341) (camchenry)

### ⚡ Performance

- 6d42395 linter: Narrow no-unsafe-optional-chaining dispatch (#22437)
(camchenry)
- 08595fb linter: Optimize no-unreachable (#22397) (camchenry)
- 3b46a8d linter: Optimize `no-loss-of-precision` (#22395) (camchenry)
- b3e2dc9 linter: Optimize `oxc/bad-array-method-on-arguments` (#22393)
(camchenry)

### 📚 Documentation

- dcbf62c linter: Remove some duplicate spaces (#22359) (camc314)
# Oxfmt
### 💥 BREAKING CHANGES

- 21bb5d1 oxfmt: [**BREAKING**] Avoid config pre-scan (#22258)
(leaysgur)

### 🐛 Bug Fixes

- 441d724 oxfmt: Fix "race probe" logic with unit tests (#22378)
(leaysgur)
- e49ee26 formatter: Respect `singleQuote` for jsdoc `import()` type
paths (#22353) (Colin Lienard)
- 43b9978 formatter/sort_imports: Treat subpath imports as internal
(#22440) (leaysgur)
- 7c5cfa0 formatter: Handle jsx trailing comment with parens (#22370)
(leaysgur)
- ac5f120 formatter: Fix erroneous formatting inside a template literal
with parentheses (#22262) (Jovi De Croock)
- 3c53a95 formatter/sort_imports: Handle ignore comment as boundary
(#22369) (leaysgur)
- 4dd83dd oxfmt: Send expandedStates variants as shared refs (#22366)
(leaysgur)
- 055cc61 formatter: Expand JSX logical chain with leading line comment
(#22346) (leaysgur)
- 8046222 formatter: Preserve type alias comment break (#22261) (Jovi De
Croock)

### ⚡ Performance

- 123c493 oxfmt: Reduce more syscalls (#22380) (leaysgur)

Co-authored-by: overlookmotel <[email protected]>
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formatter: Diff with Prettier on line comment and block comment in type

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