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feat(linter/prefer-modern-dom-apis): implement suggestion#17965

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camc314 merged 3 commits intooxc-project:mainfrom
baevm:fixer-prefer-modern-dom-apis
Jan 29, 2026
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feat(linter/prefer-modern-dom-apis): implement suggestion#17965
camc314 merged 3 commits intooxc-project:mainfrom
baevm:fixer-prefer-modern-dom-apis

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@baevm baevm commented Jan 13, 2026

this PR adds suggestion for unicorn/prefer-modern-dom-apis rule. used tests from #17475

issue #684

Copilot AI review requested due to automatic review settings January 13, 2026 11:05
@baevm baevm requested a review from camc314 as a code owner January 13, 2026 11:05
@github-actions github-actions bot added A-linter Area - Linter C-enhancement Category - New feature or request labels Jan 13, 2026
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Pull request overview

This PR adds auto-fix suggestions to the unicorn/prefer-modern-dom-apis linter rule, enabling automatic transformation from legacy DOM APIs to modern equivalents. The rule status is updated from "pending" to "suggestion" to reflect this capability.

Changes:

  • Implements auto-fix functionality that transforms legacy DOM methods (replaceChild, insertBefore, insertAdjacentText, insertAdjacentElement) to their modern equivalents
  • Adds smart detection to only apply fixes when safe (i.e., when return values are not used, except for insertAdjacentText which always returns undefined)
  • Enables comprehensive fix tests covering various code patterns including multiline expressions and inline comments

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File Description
crates/oxc_linter/src/rules/unicorn/prefer_modern_dom_apis.rs Adds GetSpan import, implements is_value_not_usable helper function, adds suggestion logic for all covered DOM methods, and enables fix tests
crates/oxc_linter/src/snapshots/unicorn_prefer_modern_dom_apis.snap Updates test snapshots to include help messages showing the suggested replacements

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codspeed-hq bot commented Jan 13, 2026

Merging this PR will not alter performance

✅ 4 untouched benchmarks
⏩ 41 skipped benchmarks1


Comparing baevm:fixer-prefer-modern-dom-apis (9890976) with main (06288ef)2

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Footnotes

  1. 41 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 (e384c49) during the generation of this report, so 06288ef was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.

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Thank you!

@camc314 camc314 changed the title feat(linter): add suggestion for unicorn/prefer-modern-dom-apis feat(linter/prefer-modern-dom-apis): implement suggestion Jan 15, 2026
@camc314 camc314 self-assigned this Jan 15, 2026
@camc314 camc314 merged commit c07497c into oxc-project:main Jan 29, 2026
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camc314 added a commit that referenced this pull request Feb 2, 2026
# Oxlint
### 💥 BREAKING CHANGES

- b34a155 linter/plugins: [**BREAKING**] `RuleTester` set
`context.filename` to absolute path (#18702) (overlookmotel)

### 🚀 Features

- 1753209 linter/vscode: Run extension when JS configs are detected
(#18832) (camc314)
- c962dd2 linter/lsp: Implement support for oxlint.config.ts (#18826)
(camc314)
- da32203 linter: Auto generate oxlint.config.ts types (#18597)
(camc314)
- 19b4df7 oxlint: Introduce `defineConfig` helper (#18596) (camc314)
- ea97231 linter: Implement `oxlint.config.ts` support (#17563)
(camc314)
- 17ca42d linter: Implement `react/no-multi-comp` rule. (#18794)
(connorshea)
- 88f30e0 linter/plugins: Move eslint compatible plugin conversion to
`eslintCompatPlugin` function (#18791) (overlookmotel)
- 2a72794 linter/plugins: `RuleTester` take `cwd` property (#18756)
(overlookmotel)
- 9f533db linter: Add `find_prev_token_within` method for token search
(#18769) (camc314)
- 772ea70 linter: Introduce `load_js_configs` napi callback (#18767)
(camc314)
- e9690c1 linter: Introduce `DiscoveredConfig` in preparation for JS
configs (#18674) (camc314)
- 558b588 linter/prefer-namespace-keyword: Move to correctness (#18733)
(camc314)
- 7a5c268 oxlint/lsp: Support `jsPlugins` (#17840) (Sysix)
- c07497c linter/prefer-modern-dom-apis: Implement suggestion (#17965)
(Mikhail Baev)
- 8531bc9 linter: Implement `prefer-const` (#18687) (camchenry)
- 8670b18 parser: Error on ambient class accessor implementations
(#18592) (camc314)
- 6b8a5ae linter: Add `eslint-plugin-import/no-nodejs-modules` rule
(#18006) (Mikhail Baev)
- 04f400d linter/no-duplicates: Add support for `considerQueryString`
option (#18657) (camc314)
- 3b7f260 linter/consistent-generic-constructor: Implement fixer
(#18616) (camc314)
- 794f9e4 linter/prefer-exponentation-operator: Implement suggestion
(#18602) (camc314)
- 773d916 linter: `eslint/sort_keys` ignore leading and trailing spreads
in auto-fix (#18485) (Lonami)
- 20d4ede linter: Implement `import/no-relative-parent-imports` rule
(#18513) (Valentin Maerten)
- 0da45ef vscode: Fallback to globally installed oxlint/oxfmt packages
(#18007) (Sysix)

### 🐛 Bug Fixes

- a3417b1 linter/plugins: Clear state when reloading workspace (#18837)
(overlookmotel)
- c879992 linter: Error on arrays passed in as config (#18822) (camc314)
- 5c80422 linter/tsdown: Ensure relative path for globals import starts
with `./` (#18820) (camc314)
- 7419dfb linter: Remove invalid debug assersion, add test (#18819)
(camc314)
- 0ca6269 ci: Fix the repo path normalization logic for tests on
Windows. (#18815) (connorshea)
- c7b0a65 linter: Fix config option docs for `react/jsx-boolean-value`
rule. (#18811) (connorshea)
- cce374e linter/prefer-const: Replace entire declaration over just the
`let` kw (#18814) (camc314)
- 41f92d1 linter: Error when given config options for a lint rule that
has no config options defined. (#18809) (connorshea)
- 0867a36 linter/consistent-index-object-style: False positive with
mapped + generic types (#18801) (camc314)
- 1d34b42 linter: Fix 32 bit build (#18783) (camc314)
- 95df577 linter/plugins: Handle error from `destroyWorkspace` (#18763)
(overlookmotel)
- b3261dc linter: Fix the curly rule config to enforce the shape of the
config and emit correct docs (#18743) (connorshea)
- d981978 linter/plugins: Use non-blocking mode when calling
`destroyWorkspace` (#18762) (overlookmotel)
- 3f43d4c linter: Accept bools as valid values for `fixable` (#18772)
(camc314)
- 005910a linter/plugins: Support plugins outside of workspace (#18755)
(overlookmotel)
- fd92711 vscode: Use `fsPath` for workspace mapping (#18728) (Sysix)
- 358b2c1 linter/consistent-generic-constructors: Check bounds when
searching for `:` token (#18745) (connorshea)
- abd0c28 linter/capitalized-comments: Fix generated rule option docs
(#18748) (connorshea)
- d90a9f6 linter: Add more tests for `prefer-const`'s fixer and fix its
invalid behavior. (#18747) (connorshea)
- f82011b oxlint/lsp: Disable JS plugins support in LSP except in tests
(#18727) (overlookmotel)
- 94505c8 linter/jest: Change `prefer-spy-on` autofix to suggestion
(#18152) (Ben Lowery)
- 6ec1112 linter: Mark unused disable directive fix as suggestion
(#18703) (ddmoney420)
- 49609ec linter/no-useless-constructor: Consider argument
transformation as used (#18706) (ddmoney420)
- 40218de linter: Fix behavior of
jsx-a11y/no-static-element-interactions rule. (#17817) (connorshea)
- db9751d linter/no-html-link-for-pages: Handle `target=_blank`
correctly (#18693) (camc314)
- e440b78 linter/plugins: Pass all args to CFG event handlers when 2
rules use same handler (#18683) (overlookmotel)
- b393430 linter/curly: Fix multi-or-nest and consistent conflict
(#18660) (camc314)
- 2e1fbc2 linter/plugins: Implement `context.parserPath` (#18644)
(overlookmotel)
- 34951ed linter/plugins: `filename` option takes precedence over
`parserOptions.lang` in `RuleTester` (#18643) (overlookmotel)
- 28df160 linter/plugins: Allow line number passed to `report` to be 0
(#18642) (overlookmotel)
- 14fabec vscode: Use built-in `getWorkspaceFolder` for detecting the
right workspace of a given uri (#18583) (Sysix)
- 0ff4cea oxlint/cli: Report error when nested config could not be
parsed (#18504) (Sysix)

### ⚡ Performance

- 9862224 linter/plugins: Reduce cost of workspaces (#18758)
(overlookmotel)
- 6bc0bde linter: Remove string allocation (#18725) (overlookmotel)
- 3a6b41e linter/plugins: Replace ESLint Traverser with lightweight
traverseNode (#18529) (Rintaro Itokawa)

### 📚 Documentation

- dd1a653 linter: Fix doc comment for ignoreStateless config option.
(#18808) (connorshea)
- 5909085 linter/plugins: Add doc comments (#18753) (overlookmotel)
- ffe53a3 linter: Update lint function docs (#18766) (camc314)
- b82faec linter: Glob for any css module for no-unassigned-import
(#18713) (Ben Stickley)
- cd86347 linter: Mark some react rules as unsupported, misc docs
improvements (#18617) (connorshea)
- 23401d8 linter: Update fixes and suggestions status for tsgolint rules
(#18619) (camchenry)
# Oxfmt
### 🚀 Features

- ee30de9 oxfmt: Add config migration from biome (#18638) (Luca Fischer)

### 🐛 Bug Fixes

- e754b18 oxfmt/migrate-prettier: Set `experimentalSortPackagejson:
false` by default (#18831) (leaysgur)
- a83c266 formatter: Keep decorated function pattern hugged when params
break (#18830) (Dunqing)
- 0c8efe1 formatter: Quote numeric property keys with `quoteProps:
consistent` (#18803) (Dunqing)
- 9c14c3e formatter: Ignore comment does not work for sequence
expressions in arrow function body (#18799) (Dunqing)
- 54984ae formatter: Handle leading comments in arrow function sequence
expressions (#18798) (Dunqing)
- 61bb2b5 formatter: Correctly expand JSX returned from arrow callbacks
in JSX expression containers (#18797) (Dunqing)
- 34ee194 formatter: Tailwindcss sorting doesn't work for object
property keys (#18773) (Dunqing)
- 48f1e35 oxfmt: Prevent ThreadsafeFunction crash on Node.js exit
(#18723) (Boshen)
- e96adca formatter: Follow Prettier's approach for for-in initializer
parentheses (#18695) (Dunqing)
- 1215a6f formatter: Preserve quote for class property key in TypeScript
(#18692) (Dunqing)
- 059acae formatter: Incorrect comments placement for union type in
`TSTypeIntersection` (#18690) (Dunqing)
- c3d05c1 formatter,oxfmt: Handle CRLF with embedded formatting (#18686)
(leaysgur)
- 7cb3085 formatter: Preserve comments on rest elements (#18649)
(Dunqing)
- 21984dd formatter: Preserve type cast comments on rest parameters
(#18648) (Dunqing)
- 2f70254 formatter: Don't add extra semicolon on suppressed class
properties (#18631) (Dunqing)
- ac1ff4e oxfmt: Use `empty_line` IR for empty xxx-in-js line (#18623)
(leaysgur)
- 8f76900 oxfmt: Dedent xxx-in-js templates before calling prettier
(#18622) (leaysgur)
- 6b726ef oxfmt: Trim whitespace only xxx-in-js templates (#18621)
(leaysgur)

Co-authored-by: camc314 <[email protected]>
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