feat(linter): implement typescript/parameter-properties by camc314 · Pull Request #19374 · oxc-project/oxc

camc314 · 2026-02-13T20:10:55Z

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camc314 · 2026-02-13T20:11:09Z

feat(linter): implement typescript/parameter-properties #19374 👈 (View in Graphite)
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Pull request overview

This pull request implements the typescript/parameter-properties ESLint rule, which enforces consistent usage of parameter properties versus class properties in TypeScript constructors.

Changes:

Adds a new linter rule that can enforce either parameter properties (constructor shorthand) or class properties (explicit declarations)
Implements configuration options to allow specific modifier combinations
Provides comprehensive test coverage for various scenarios

Reviewed changes

Copilot reviewed 3 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
`crates/oxc_linter/src/rules/typescript/parameter_properties.rs`	Main rule implementation with logic for detecting parameter properties and class properties
`crates/oxc_linter/src/snapshots/typescript_parameter_properties.snap`	Snapshot tests showing expected diagnostic outputs
`crates/oxc_linter/src/rules.rs`	Registers the new rule module
`crates/oxc_linter/src/generated/rules_enum.rs`	Generated code to include the rule in the enum
`crates/oxc_linter/src/generated/rule_runner_impls.rs`	Generated code for rule runner implementation

crates/oxc_linter/src/rules/typescript/parameter_properties.rs

codspeed-hq · 2026-02-13T20:17:04Z

Merging this PR will not alter performance

✅ 17 untouched benchmarks
⏩ 33 skipped benchmarks¹

_{Comparing c/02-10-feat_linter_implement_typescript_parameter-properties (5f593f3) with main (94d8d74)}

33 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. ↩

camc314 · 2026-02-13T20:47:29Z

Merge activity

Feb 13, 8:47 PM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
Feb 13, 8:50 PM UTC: camc314 added this pull request to the Graphite merge queue.
Feb 13, 8:56 PM UTC: Merged by the Graphite merge queue.

# Oxlint ### 💥 BREAKING CHANGES - 7711821 oxlint: [**BREAKING**] `no-shadow-restricted-names` report `globalThis` by default (#19407) (Sysix) ### 🚀 Features - ce1baa0 linter: Implement eslint/no-shadow (#18979) (Víctor Fernández) - 7a333c1 linter: Support dynamic configs via CLI arguments (#19384) (camc314) - 1bf569b linter: Implement typescript/unified-signatures (#19375) (camc314) - 6562a9b linter: Implement typescript/parameter-properties (#19374) (camc314) - 94d8d74 linter: Implement typescript/no-use-before-define (#19373) (camc314) - 80b002a linter: Implement fixer for unicorn/no-instanceof-builtins (#19371) (camc314) - 5c3784b linter: Implement eslint/no-unmodified-loop-condition (#19341) (Vincent R) - cc00a59 linter/const-comparisons: Improve diagnostics when mixing logical/comparison operators (#19370) (camc314) - ea2c401 linter: Add support for no constructed context values (#18067) (Jovi De Croock) - f2440eb linter: Mark eslint/no-return-assign as having no fixer (#19327) (camc314) - 8588670 linter/unicorn: Implement suggestion for `unicorn/no-await-in-promise-methods` rule (#19359) (Mikhail Baev) - f0af965 linter: Move `jsx-a11y/no-static-element-interactions` rule out of the nursery. (#19355) (connorshea) - be0ce50 linter/tsgolint: Add support for labeled ranges in tsgolint diagnostics (#19201) (camchenry) - b5bc900 linter: Implement fixer for unicorn/no-new-buffer (#19326) (camc314) - 1612932 linter: Add typescript/no-unnecessary-condition (#19130) (camc314) - 37dc6c5 linter: Implement fixer for unicorn/prefer-includes (#19323) (camc314) ### 🐛 Bug Fixes - c2b1870 linter: Enforce config options for `react/forbid-dom-props` rule. (#19387) (connorshea) - 3d24e44 linter: Honor no-empty-function allow getters/setters for object literals (#19393) (camc314) - bbced8d linter: Enforce config options for `eslint/no-empty-function` rule, improve docs. (#19390) (connorshea) - 6bc8aec linter: Fix the behavior of `import/extensions` rule for a file that has multiple extensions. (#18919) (connorshea) - c62a295 linter/img-redundant-alt: Enforce whole-word matching for redundant alt text (#19367) (camc314) - 98956fe linter/describe-function-title: Skip autofix for type-only imports (#19329) (camc314) - d96d26d linter/plugins: Provide `parser.version` (#19364) (overlookmotel) - 81f0039 linter_codegen: Compute rule IDs relative to previous rule (#19350) (camchenry) - b7ef0a8 linter/consistent-indexed-object-style: Avoid unsafe Record conversions for mapped types (#19320) (camc314) ### 📚 Documentation - 3a6059f linter: Improve docs for `eslint/require-await` rule. (#19361) (connorshea) - b069269 linter/plugins: Add comment about deprecated `ScopeManager` methods (#19363) (overlookmotel) - 2d8aaf9 linter: Disable formatting for `eslint/no-unsafe-negation` examples. (#19347) (connorshea) - fb87806 linter: Ensure that we do not auto-format the docs for `unicorn/number-literal-case` rule. (#19346) (connorshea) - 8d3ae27 linter/typescript: Skip docs for deprecated type aware rule options (#19324) (camc314) # Oxfmt ### 💥 BREAKING CHANGES - 00135b5 formatter/sort_imports: [**BREAKING**] Change default `groups` order (#19427) (leaysgur) - 9c34f72 formatter/sort_imports: [**BREAKING**] Report invalid group name with renaming `side-effect` > `side_effect` (#19416) (leaysgur) ### 🚀 Features - 4baebef formatter/sort_imports: Support `{ newlinesBetween: bool }` inside `groups` (#19358) (leaysgur) - d1c2fb6 formatter/sort_imports: Support `customGroups` attributes(`selector` and `modifiers`) (#19356) (leaysgur) ### 🐛 Bug Fixes - f084ea6 oxfmt: Explicitly pass `process.env` for the forked process (#19380) (Long Ho) - 2bc7a14 formatter: Arrow function body incorrectly broken when return type has comment (#19368) (Dunqing) - 90ec3d2 oxfmt: Update tailwind plugin which fixes crash on non-js file (#19353) (leaysgur) - e9c5b1e formatter: Treat `PrivateFieldExpression` as simple call argument (#19348) (Dunqing) - 80643d5 formatter: Match Prettier union indentation with leading comments (#19271) (Dunqing) ### ⚡ Performance - c169c77 syntax: Optimize `is_identifier_name_patched` (#19386) (sapphi-red)

…19374)

# Oxlint ### 💥 BREAKING CHANGES - 7711821 oxlint: [**BREAKING**] `no-shadow-restricted-names` report `globalThis` by default (oxc-project#19407) (Sysix) ### 🚀 Features - ce1baa0 linter: Implement eslint/no-shadow (oxc-project#18979) (Víctor Fernández) - 7a333c1 linter: Support dynamic configs via CLI arguments (oxc-project#19384) (camc314) - 1bf569b linter: Implement typescript/unified-signatures (oxc-project#19375) (camc314) - 6562a9b linter: Implement typescript/parameter-properties (oxc-project#19374) (camc314) - 94d8d74 linter: Implement typescript/no-use-before-define (oxc-project#19373) (camc314) - 80b002a linter: Implement fixer for unicorn/no-instanceof-builtins (oxc-project#19371) (camc314) - 5c3784b linter: Implement eslint/no-unmodified-loop-condition (oxc-project#19341) (Vincent R) - cc00a59 linter/const-comparisons: Improve diagnostics when mixing logical/comparison operators (oxc-project#19370) (camc314) - ea2c401 linter: Add support for no constructed context values (oxc-project#18067) (Jovi De Croock) - f2440eb linter: Mark eslint/no-return-assign as having no fixer (oxc-project#19327) (camc314) - 8588670 linter/unicorn: Implement suggestion for `unicorn/no-await-in-promise-methods` rule (oxc-project#19359) (Mikhail Baev) - f0af965 linter: Move `jsx-a11y/no-static-element-interactions` rule out of the nursery. (oxc-project#19355) (connorshea) - be0ce50 linter/tsgolint: Add support for labeled ranges in tsgolint diagnostics (oxc-project#19201) (camchenry) - b5bc900 linter: Implement fixer for unicorn/no-new-buffer (oxc-project#19326) (camc314) - 1612932 linter: Add typescript/no-unnecessary-condition (oxc-project#19130) (camc314) - 37dc6c5 linter: Implement fixer for unicorn/prefer-includes (oxc-project#19323) (camc314) ### 🐛 Bug Fixes - c2b1870 linter: Enforce config options for `react/forbid-dom-props` rule. (oxc-project#19387) (connorshea) - 3d24e44 linter: Honor no-empty-function allow getters/setters for object literals (oxc-project#19393) (camc314) - bbced8d linter: Enforce config options for `eslint/no-empty-function` rule, improve docs. (oxc-project#19390) (connorshea) - 6bc8aec linter: Fix the behavior of `import/extensions` rule for a file that has multiple extensions. (oxc-project#18919) (connorshea) - c62a295 linter/img-redundant-alt: Enforce whole-word matching for redundant alt text (oxc-project#19367) (camc314) - 98956fe linter/describe-function-title: Skip autofix for type-only imports (oxc-project#19329) (camc314) - d96d26d linter/plugins: Provide `parser.version` (oxc-project#19364) (overlookmotel) - 81f0039 linter_codegen: Compute rule IDs relative to previous rule (oxc-project#19350) (camchenry) - b7ef0a8 linter/consistent-indexed-object-style: Avoid unsafe Record conversions for mapped types (oxc-project#19320) (camc314) ### 📚 Documentation - 3a6059f linter: Improve docs for `eslint/require-await` rule. (oxc-project#19361) (connorshea) - b069269 linter/plugins: Add comment about deprecated `ScopeManager` methods (oxc-project#19363) (overlookmotel) - 2d8aaf9 linter: Disable formatting for `eslint/no-unsafe-negation` examples. (oxc-project#19347) (connorshea) - fb87806 linter: Ensure that we do not auto-format the docs for `unicorn/number-literal-case` rule. (oxc-project#19346) (connorshea) - 8d3ae27 linter/typescript: Skip docs for deprecated type aware rule options (oxc-project#19324) (camc314) # Oxfmt ### 💥 BREAKING CHANGES - 00135b5 formatter/sort_imports: [**BREAKING**] Change default `groups` order (oxc-project#19427) (leaysgur) - 9c34f72 formatter/sort_imports: [**BREAKING**] Report invalid group name with renaming `side-effect` > `side_effect` (oxc-project#19416) (leaysgur) ### 🚀 Features - 4baebef formatter/sort_imports: Support `{ newlinesBetween: bool }` inside `groups` (oxc-project#19358) (leaysgur) - d1c2fb6 formatter/sort_imports: Support `customGroups` attributes(`selector` and `modifiers`) (oxc-project#19356) (leaysgur) ### 🐛 Bug Fixes - f084ea6 oxfmt: Explicitly pass `process.env` for the forked process (oxc-project#19380) (Long Ho) - 2bc7a14 formatter: Arrow function body incorrectly broken when return type has comment (oxc-project#19368) (Dunqing) - 90ec3d2 oxfmt: Update tailwind plugin which fixes crash on non-js file (oxc-project#19353) (leaysgur) - e9c5b1e formatter: Treat `PrivateFieldExpression` as simple call argument (oxc-project#19348) (Dunqing) - 80643d5 formatter: Match Prettier union indentation with leading comments (oxc-project#19271) (Dunqing) ### ⚡ Performance - c169c77 syntax: Optimize `is_identifier_name_patched` (oxc-project#19386) (sapphi-red)

camc314 marked this pull request as ready for review February 13, 2026 20:11

Copilot AI review requested due to automatic review settings February 13, 2026 20:11

github-actions bot added A-linter Area - Linter C-enhancement Category - New feature or request labels Feb 13, 2026

Copilot started reviewing on behalf of camc314 February 13, 2026 20:11 View session

camc314 self-assigned this Feb 13, 2026

Copilot AI reviewed Feb 13, 2026

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crates/oxc_linter/src/rules/typescript/parameter_properties.rs Show resolved Hide resolved

camc314 force-pushed the c/02-10-feat_linter_implement_typescript_parameter-properties branch 3 times, most recently from 5f593f3 to 890d9ba Compare February 13, 2026 20:44

camc314 added the 0-merge Merge with Graphite Merge Queue label Feb 13, 2026

feat(linter): implement typescript/parameter-properties (#19374)

6562a9b

graphite-app bot force-pushed the c/02-10-feat_linter_implement_typescript_parameter-properties branch from 890d9ba to 6562a9b Compare February 13, 2026 20:50

graphite-app bot merged commit 6562a9b into main Feb 13, 2026
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graphite-app bot deleted the c/02-10-feat_linter_implement_typescript_parameter-properties branch February 13, 2026 20:56

graphite-app bot removed the 0-merge Merge with Graphite Merge Queue label Feb 13, 2026

Boshen mentioned this pull request Feb 16, 2026

release(apps): oxlint v1.48.0 && oxfmt v0.33.0 #19430

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OskarLebuda pushed a commit to OskarLebuda/oxc that referenced this pull request Feb 17, 2026

feat(linter): implement typescript/parameter-properties (oxc-project#…

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feat(linter): implement typescript/parameter-properties#19374

feat(linter): implement typescript/parameter-properties#19374
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Merging this PR will not alter performance

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