chore: enable `$ExpectType` comments in .ts files #18869

fasttime · 2024-09-07T14:37:04Z

Prerequisites checklist

I have read the contributing guidelines.

What is the purpose of this pull request? (put an "X" next to an item)

[ ] Documentation update
[ ] Bug fix (template)
[ ] New rule (template)
[ ] Changes an existing rule (template)
[ ] Add autofix to a rule
[ ] Add a CLI option
[X] Add something to the core
[ ] Other, please explain:

What changes did you make? (Give an overview)

This PR enables type assertions in .ts files via // $ExpectType comments. tests/lib/types/types.test.ts was imported from DefinitelyTyped and contains such comments, which are currently non-functional.

DefinitelyTyped uses dtslint to validate // $ExpectType comments, but dtslint assumes the same project structure and build tooling as DefinitelyTyped, so it does not integrate well with other projects like eslint. However, dtslint itself recommends using some other tools in order to just test types. One of those tools is eslint-plugin-expect-type, which recognizes // $ExpectType comments and integrates in eslint as a plugin. This is the solution I've ended up implemented in this PR.

Another option would be using an assertion library like expect-type or tsd instead of $ExpectType comments. These libraries provide type-checking at compile time, but have no knowledge of comments in code, so we would have to refactor those $ExpectType with other constructs provided by those libraries.

Is there anything you'd like reviewers to focus on?

I don't feel strongly about using a particular tool for type assertions. Shall we use eslint-plugin-expect-type as currently implemented in this PR or switch to something else?

netlify · 2024-09-07T14:37:24Z

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nzakas

I think it's fine to use the same checks to get started we can always evaluate other options later.

eslint.config.js

## PR Checklist - [X] Addresses an existing open issue: fixes #142 - [X] That issue was marked as [`status: accepting prs`](https://github.com/JoshuaKGoldberg/eslint-plugin-expect-type/issues?q=is%3Aopen+is%3Aissue+label%3A%22status%3A+accepting+prs%22) - [X] Steps in [CONTRIBUTING.md](https://github.com/JoshuaKGoldberg/eslint-plugin-expect-type/blob/main/.github/CONTRIBUTING.md) were taken ## Overview  This PR updates the `recommended` config to make it a valid flat config. Currently, the `recommended` config's `plugins` field is an array, and thus this config cannot be used in flat mode, where `plugins` is expected to be an object. It looks like the readme file already contains instructions for embedding the `recommended` config in a flat config file, but the `recommended` config itself hasn't been updated yet. ```js import expectType from "eslint-plugin-expect-type/configs/recommended"; export default [ // your other ESLint configurations expectType, ]; ``` I noticed this problem while working on eslint/eslint#18869.

Co-authored-by: Nicholas C. Zakas <nicholas@humanwhocodes.com>

nzakas

LGTM. Thanks!

##### [v9.11.0](https://github.com/eslint/eslint/releases/tag/v9.11.0) #### Features - [`ec30c73`](eslint/eslint@ec30c73) feat: add "eslint/universal" to export `Linter` ([#18883](eslint/eslint#18883)) (唯然) - [`c591da6`](eslint/eslint@c591da6) feat: Add language to types ([#18917](eslint/eslint#18917)) (Nicholas C. Zakas) - [`492eb8f`](eslint/eslint@492eb8f) feat: limit the name given to `ImportSpecifier` in `id-length` ([#18861](eslint/eslint#18861)) (Tanuj Kanti) - [`19c6856`](eslint/eslint@19c6856) feat: Add `no-useless-constructor` suggestion ([#18799](eslint/eslint#18799)) (Jordan Thomson) - [`a48f8c2`](eslint/eslint@a48f8c2) feat: add type `FormatterFunction`, update `LoadedFormatter` ([#18872](eslint/eslint#18872)) (Francesco Trotta) #### Bug Fixes - [`5e5f39b`](eslint/eslint@5e5f39b) fix: add missing types for `no-restricted-exports` rule ([#18914](eslint/eslint#18914)) (Kristóf Poduszló) - [`8f630eb`](eslint/eslint@8f630eb) fix: add missing types for `no-param-reassign` options ([#18906](eslint/eslint#18906)) (Kristóf Poduszló) - [`d715781`](eslint/eslint@d715781) fix: add missing types for `no-extra-boolean-cast` options ([#18902](eslint/eslint#18902)) (Kristóf Poduszló) - [`2de5742`](eslint/eslint@2de5742) fix: add missing types for `no-misleading-character-class` options ([#18905](eslint/eslint#18905)) (Kristóf Poduszló) - [`c153084`](eslint/eslint@c153084) fix: add missing types for `no-implicit-coercion` options ([#18903](eslint/eslint#18903)) (Kristóf Poduszló) - [`fa11b2e`](eslint/eslint@fa11b2e) fix: add missing types for `no-empty-function` options ([#18901](eslint/eslint#18901)) (Kristóf Poduszló) - [`a0deed1`](eslint/eslint@a0deed1) fix: add missing types for `camelcase` options ([#18897](eslint/eslint#18897)) (Kristóf Poduszló) #### Documentation - [`e4e5709`](eslint/eslint@e4e5709) docs: correct `prefer-object-has-own` type definition comment ([#18924](eslint/eslint#18924)) (Nitin Kumar) - [`91cbd18`](eslint/eslint@91cbd18) docs: add unicode abbreviations in no-irregular-whitespace rule ([#18894](eslint/eslint#18894)) (Alix Royere) - [`59cfc0f`](eslint/eslint@59cfc0f) docs: clarify `resultsMeta` in `LoadedFormatter` type ([#18881](eslint/eslint#18881)) (Milos Djermanovic) - [`adcc50d`](eslint/eslint@adcc50d) docs: Update README (GitHub Actions Bot) - [`4edac1a`](eslint/eslint@4edac1a) docs: Update README (GitHub Actions Bot) #### Build Related - [`959d360`](eslint/eslint@959d360) build: Support updates to previous major versions ([#18871](eslint/eslint#18871)) (Milos Djermanovic) #### Chores - [`ca21a64`](eslint/eslint@ca21a64) chore: upgrade [@eslint/js](https://github.com/eslint/js)[@9](https://github.com/9).11.0 ([#18927](eslint/eslint#18927)) (Milos Djermanovic) - [`a10f90a`](eslint/eslint@a10f90a) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`e4e02cc`](eslint/eslint@e4e02cc) refactor: Extract processor logic into ProcessorService ([#18818](eslint/eslint#18818)) (Nicholas C. Zakas) - [`6d4484d`](eslint/eslint@6d4484d) chore: updates for v8.57.1 release (Jenkins) - [`71f37c5`](eslint/eslint@71f37c5) refactor: use optional chaining when validating config rules ([#18893](eslint/eslint#18893)) (lucasrmendonca) - [`2c2805f`](eslint/eslint@2c2805f) chore: Add PR note to all templates ([#18892](eslint/eslint#18892)) (Nicholas C. Zakas) - [`7b852ce`](eslint/eslint@7b852ce) refactor: use `Directive` class from `@eslint/plugin-kit` ([#18884](eslint/eslint#18884)) (Milos Djermanovic) - [`d594ddd`](eslint/eslint@d594ddd) chore: update dependency [@eslint/core](https://github.com/eslint/core) to ^0.6.0 ([#18863](eslint/eslint#18863)) (renovate\[bot]) - [`78b2421`](eslint/eslint@78b2421) chore: Update change.yml ([#18882](eslint/eslint#18882)) (Nicholas C. Zakas) - [`a416f0a`](eslint/eslint@a416f0a) chore: enable `$ExpectType` comments in .ts files ([#18869](eslint/eslint#18869)) (Francesco Trotta) ##### [v9.10.0](eslint/eslint@v9.9.1...6448f32) ##### [v9.9.1](eslint/eslint@v9.9.0...8781e6f) ##### [v9.9.0](https://github.com/eslint/eslint/releases/tag/v9.9.0) #### Features - [`41d0206`](eslint/eslint@41d0206) feat: Add support for TS config files ([#18134](eslint/eslint#18134)) (Arya Emami) - [`3a4eaf9`](eslint/eslint@3a4eaf9) feat: add suggestion to `require-await` to remove `async` keyword ([#18716](eslint/eslint#18716)) (Dave) #### Documentation - [`9fe068c`](eslint/eslint@9fe068c) docs: how to author plugins with configs that extend other configs ([#18753](eslint/eslint#18753)) (Alec Gibson) - [`48117b2`](eslint/eslint@48117b2) docs: add version support page in the side navbar ([#18738](eslint/eslint#18738)) (Amaresh S M) - [`fec2951`](eslint/eslint@fec2951) docs: add version support page to the dropdown ([#18730](eslint/eslint#18730)) (Amaresh S M) - [`38a0661`](eslint/eslint@38a0661) docs: Fix typo ([#18735](eslint/eslint#18735)) (Zaina Al Habash) - [`3c32a9e`](eslint/eslint@3c32a9e) docs: Update yarn command for creating ESLint config ([#18739](eslint/eslint#18739)) (Temitope Ogunleye) - [`f9ac978`](eslint/eslint@f9ac978) docs: Update README (GitHub Actions Bot) #### Chores - [`461b2c3`](eslint/eslint@461b2c3) chore: upgrade to `@eslint/js@9.9.0` ([#18765](eslint/eslint#18765)) (Francesco Trotta) - [`59dba1b`](eslint/eslint@59dba1b) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`fea8563`](eslint/eslint@fea8563) chore: update dependency [@eslint/core](https://github.com/eslint/core) to ^0.3.0 ([#18724](eslint/eslint#18724)) (renovate\[bot]) - [`aac191e`](eslint/eslint@aac191e) chore: update dependency [@eslint/json](https://github.com/eslint/json) to ^0.3.0 ([#18760](eslint/eslint#18760)) (renovate\[bot]) - [`b97fa05`](eslint/eslint@b97fa05) chore: update wdio dependencies for more stable tests ([#18759](eslint/eslint#18759)) (Christian Bromann) ##### [v9.8.0](eslint/eslint@v9.7.0...63881dc) ##### [v9.7.0](https://github.com/eslint/eslint/releases/tag/v9.7.0) #### Features - [`7bd9839`](eslint/eslint@7bd9839) feat: add support for es2025 duplicate named capturing groups ([#18630](eslint/eslint#18630)) (Yosuke Ota) - [`1381394`](eslint/eslint@1381394) feat: add `regex` option in `no-restricted-imports` ([#18622](eslint/eslint#18622)) (Nitin Kumar) #### Bug Fixes - [`14e9f81`](eslint/eslint@14e9f81) fix: destructuring in catch clause in `no-unused-vars` ([#18636](eslint/eslint#18636)) (Francesco Trotta) #### Documentation - [`9f416db`](eslint/eslint@9f416db) docs: Add Powered by Algolia label to the search. ([#18633](eslint/eslint#18633)) (Amaresh S M) - [`c8d26cb`](eslint/eslint@c8d26cb) docs: Open JS Foundation -> OpenJS Foundation ([#18649](eslint/eslint#18649)) (Milos Djermanovic) - [`6e79ac7`](eslint/eslint@6e79ac7) docs: `loadESLint` does not support option `cwd` ([#18641](eslint/eslint#18641)) (Francesco Trotta) #### Chores - [`793b718`](eslint/eslint@793b718) chore: upgrade [@eslint/js](https://github.com/eslint/js)[@9](https://github.com/9).7.0 ([#18680](eslint/eslint#18680)) (Francesco Trotta) - [`7ed6f9a`](eslint/eslint@7ed6f9a) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`7bcda76`](eslint/eslint@7bcda76) refactor: Add type references ([#18652](eslint/eslint#18652)) (Nicholas C. Zakas) - [`51bf57c`](eslint/eslint@51bf57c) chore: add tech sponsors through actions ([#18624](eslint/eslint#18624)) (Strek) - [`6320732`](eslint/eslint@6320732) refactor: don't use `parent` property in `NodeEventGenerator` ([#18653](eslint/eslint#18653)) (Milos Djermanovic) - [`9e6d640`](eslint/eslint@9e6d640) refactor: move "Parsing error" prefix adding to Linter ([#18650](eslint/eslint#18650)) (Milos Djermanovic) ##### [v9.6.0](eslint/eslint@v9.5.0...473d1bb) ##### [v9.5.0](eslint/eslint@v9.4.0...5352357) ##### [v9.4.0](eslint/eslint@v9.3.0...a5f7e58) ##### [v9.3.0](eslint/eslint@v9.2.0...41a871c) ##### [v9.2.0](eslint/eslint@v9.1.1...271e7ab) ##### [v9.1.1](eslint/eslint@v9.1.0...b4d2512) ##### [v9.1.0](eslint/eslint@v9.0.0...b78d831) ##### [v9.0.0](eslint/eslint@v8.57.0...e0cbc50)

##### [v9.11.1](eslint/eslint@v9.11.0...69e9459) ##### [v9.11.0](https://github.com/eslint/eslint/releases/tag/v9.11.0) #### Features - [`ec30c73`](eslint/eslint@ec30c73) feat: add "eslint/universal" to export `Linter` ([#18883](eslint/eslint#18883)) (唯然) - [`c591da6`](eslint/eslint@c591da6) feat: Add language to types ([#18917](eslint/eslint#18917)) (Nicholas C. Zakas) - [`492eb8f`](eslint/eslint@492eb8f) feat: limit the name given to `ImportSpecifier` in `id-length` ([#18861](eslint/eslint#18861)) (Tanuj Kanti) - [`19c6856`](eslint/eslint@19c6856) feat: Add `no-useless-constructor` suggestion ([#18799](eslint/eslint#18799)) (Jordan Thomson) - [`a48f8c2`](eslint/eslint@a48f8c2) feat: add type `FormatterFunction`, update `LoadedFormatter` ([#18872](eslint/eslint#18872)) (Francesco Trotta) #### Bug Fixes - [`5e5f39b`](eslint/eslint@5e5f39b) fix: add missing types for `no-restricted-exports` rule ([#18914](eslint/eslint#18914)) (Kristóf Poduszló) - [`8f630eb`](eslint/eslint@8f630eb) fix: add missing types for `no-param-reassign` options ([#18906](eslint/eslint#18906)) (Kristóf Poduszló) - [`d715781`](eslint/eslint@d715781) fix: add missing types for `no-extra-boolean-cast` options ([#18902](eslint/eslint#18902)) (Kristóf Poduszló) - [`2de5742`](eslint/eslint@2de5742) fix: add missing types for `no-misleading-character-class` options ([#18905](eslint/eslint#18905)) (Kristóf Poduszló) - [`c153084`](eslint/eslint@c153084) fix: add missing types for `no-implicit-coercion` options ([#18903](eslint/eslint#18903)) (Kristóf Poduszló) - [`fa11b2e`](eslint/eslint@fa11b2e) fix: add missing types for `no-empty-function` options ([#18901](eslint/eslint#18901)) (Kristóf Poduszló) - [`a0deed1`](eslint/eslint@a0deed1) fix: add missing types for `camelcase` options ([#18897](eslint/eslint#18897)) (Kristóf Poduszló) #### Documentation - [`e4e5709`](eslint/eslint@e4e5709) docs: correct `prefer-object-has-own` type definition comment ([#18924](eslint/eslint#18924)) (Nitin Kumar) - [`91cbd18`](eslint/eslint@91cbd18) docs: add unicode abbreviations in no-irregular-whitespace rule ([#18894](eslint/eslint#18894)) (Alix Royere) - [`59cfc0f`](eslint/eslint@59cfc0f) docs: clarify `resultsMeta` in `LoadedFormatter` type ([#18881](eslint/eslint#18881)) (Milos Djermanovic) - [`adcc50d`](eslint/eslint@adcc50d) docs: Update README (GitHub Actions Bot) - [`4edac1a`](eslint/eslint@4edac1a) docs: Update README (GitHub Actions Bot) #### Build Related - [`959d360`](eslint/eslint@959d360) build: Support updates to previous major versions ([#18871](eslint/eslint#18871)) (Milos Djermanovic) #### Chores - [`ca21a64`](eslint/eslint@ca21a64) chore: upgrade [@eslint/js](https://github.com/eslint/js)[@9](https://github.com/9).11.0 ([#18927](eslint/eslint#18927)) (Milos Djermanovic) - [`a10f90a`](eslint/eslint@a10f90a) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`e4e02cc`](eslint/eslint@e4e02cc) refactor: Extract processor logic into ProcessorService ([#18818](eslint/eslint#18818)) (Nicholas C. Zakas) - [`6d4484d`](eslint/eslint@6d4484d) chore: updates for v8.57.1 release (Jenkins) - [`71f37c5`](eslint/eslint@71f37c5) refactor: use optional chaining when validating config rules ([#18893](eslint/eslint#18893)) (lucasrmendonca) - [`2c2805f`](eslint/eslint@2c2805f) chore: Add PR note to all templates ([#18892](eslint/eslint#18892)) (Nicholas C. Zakas) - [`7b852ce`](eslint/eslint@7b852ce) refactor: use `Directive` class from `@eslint/plugin-kit` ([#18884](eslint/eslint#18884)) (Milos Djermanovic) - [`d594ddd`](eslint/eslint@d594ddd) chore: update dependency [@eslint/core](https://github.com/eslint/core) to ^0.6.0 ([#18863](eslint/eslint#18863)) (renovate\[bot]) - [`78b2421`](eslint/eslint@78b2421) chore: Update change.yml ([#18882](eslint/eslint#18882)) (Nicholas C. Zakas) - [`a416f0a`](eslint/eslint@a416f0a) chore: enable `$ExpectType` comments in .ts files ([#18869](eslint/eslint#18869)) (Francesco Trotta) ##### [v9.10.0](eslint/eslint@v9.9.1...6448f32) ##### [v9.9.1](eslint/eslint@v9.9.0...8781e6f) ##### [v9.9.0](https://github.com/eslint/eslint/releases/tag/v9.9.0) #### Features - [`41d0206`](eslint/eslint@41d0206) feat: Add support for TS config files ([#18134](eslint/eslint#18134)) (Arya Emami) - [`3a4eaf9`](eslint/eslint@3a4eaf9) feat: add suggestion to `require-await` to remove `async` keyword ([#18716](eslint/eslint#18716)) (Dave) #### Documentation - [`9fe068c`](eslint/eslint@9fe068c) docs: how to author plugins with configs that extend other configs ([#18753](eslint/eslint#18753)) (Alec Gibson) - [`48117b2`](eslint/eslint@48117b2) docs: add version support page in the side navbar ([#18738](eslint/eslint#18738)) (Amaresh S M) - [`fec2951`](eslint/eslint@fec2951) docs: add version support page to the dropdown ([#18730](eslint/eslint#18730)) (Amaresh S M) - [`38a0661`](eslint/eslint@38a0661) docs: Fix typo ([#18735](eslint/eslint#18735)) (Zaina Al Habash) - [`3c32a9e`](eslint/eslint@3c32a9e) docs: Update yarn command for creating ESLint config ([#18739](eslint/eslint#18739)) (Temitope Ogunleye) - [`f9ac978`](eslint/eslint@f9ac978) docs: Update README (GitHub Actions Bot) #### Chores - [`461b2c3`](eslint/eslint@461b2c3) chore: upgrade to `@eslint/js@9.9.0` ([#18765](eslint/eslint#18765)) (Francesco Trotta) - [`59dba1b`](eslint/eslint@59dba1b) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`fea8563`](eslint/eslint@fea8563) chore: update dependency [@eslint/core](https://github.com/eslint/core) to ^0.3.0 ([#18724](eslint/eslint#18724)) (renovate\[bot]) - [`aac191e`](eslint/eslint@aac191e) chore: update dependency [@eslint/json](https://github.com/eslint/json) to ^0.3.0 ([#18760](eslint/eslint#18760)) (renovate\[bot]) - [`b97fa05`](eslint/eslint@b97fa05) chore: update wdio dependencies for more stable tests ([#18759](eslint/eslint#18759)) (Christian Bromann) ##### [v9.8.0](eslint/eslint@v9.7.0...63881dc) ##### [v9.7.0](https://github.com/eslint/eslint/releases/tag/v9.7.0) #### Features - [`7bd9839`](eslint/eslint@7bd9839) feat: add support for es2025 duplicate named capturing groups ([#18630](eslint/eslint#18630)) (Yosuke Ota) - [`1381394`](eslint/eslint@1381394) feat: add `regex` option in `no-restricted-imports` ([#18622](eslint/eslint#18622)) (Nitin Kumar) #### Bug Fixes - [`14e9f81`](eslint/eslint@14e9f81) fix: destructuring in catch clause in `no-unused-vars` ([#18636](eslint/eslint#18636)) (Francesco Trotta) #### Documentation - [`9f416db`](eslint/eslint@9f416db) docs: Add Powered by Algolia label to the search. ([#18633](eslint/eslint#18633)) (Amaresh S M) - [`c8d26cb`](eslint/eslint@c8d26cb) docs: Open JS Foundation -> OpenJS Foundation ([#18649](eslint/eslint#18649)) (Milos Djermanovic) - [`6e79ac7`](eslint/eslint@6e79ac7) docs: `loadESLint` does not support option `cwd` ([#18641](eslint/eslint#18641)) (Francesco Trotta) #### Chores - [`793b718`](eslint/eslint@793b718) chore: upgrade [@eslint/js](https://github.com/eslint/js)[@9](https://github.com/9).7.0 ([#18680](eslint/eslint#18680)) (Francesco Trotta) - [`7ed6f9a`](eslint/eslint@7ed6f9a) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`7bcda76`](eslint/eslint@7bcda76) refactor: Add type references ([#18652](eslint/eslint#18652)) (Nicholas C. Zakas) - [`51bf57c`](eslint/eslint@51bf57c) chore: add tech sponsors through actions ([#18624](eslint/eslint#18624)) (Strek) - [`6320732`](eslint/eslint@6320732) refactor: don't use `parent` property in `NodeEventGenerator` ([#18653](eslint/eslint#18653)) (Milos Djermanovic) - [`9e6d640`](eslint/eslint@9e6d640) refactor: move "Parsing error" prefix adding to Linter ([#18650](eslint/eslint#18650)) (Milos Djermanovic) ##### [v9.6.0](eslint/eslint@v9.5.0...473d1bb) ##### [v9.5.0](eslint/eslint@v9.4.0...5352357) ##### [v9.4.0](eslint/eslint@v9.3.0...a5f7e58) ##### [v9.3.0](eslint/eslint@v9.2.0...41a871c) ##### [v9.2.0](eslint/eslint@v9.1.1...271e7ab) ##### [v9.1.1](eslint/eslint@v9.1.0...b4d2512) ##### [v9.1.0](eslint/eslint@v9.0.0...b78d831) ##### [v9.0.0](eslint/eslint@v8.57.0...e0cbc50)

##### [v9.17.0](eslint/eslint@v9.16.0...90c1db9) ##### [v9.16.0](https://github.com/eslint/eslint/releases/tag/v9.16.0) #### Features - [`8f70eb1`](eslint/eslint@8f70eb1) feat: Add `ignoreComputedKeys` option in `sort-keys` rule ([#19162](eslint/eslint#19162)) (Milos Djermanovic) #### Documentation - [`9eefc8f`](eslint/eslint@9eefc8f) docs: fix typos in `use-isnan` ([#19190](eslint/eslint#19190)) (루밀LuMir) - [`0c8cea8`](eslint/eslint@0c8cea8) docs: switch the order of words in `no-unreachable` ([#19189](eslint/eslint#19189)) (루밀LuMir) - [`0c19417`](eslint/eslint@0c19417) docs: add missing backtick to `no-async-promise-executor` ([#19188](eslint/eslint#19188)) (루밀LuMir) - [`8df9276`](eslint/eslint@8df9276) docs: add backtick in `-0` in `description` of `no-compare-neg-zero` ([#19186](eslint/eslint#19186)) (루밀LuMir) - [`7e16e3f`](eslint/eslint@7e16e3f) docs: fix `caseSensitive` option's title of `sort-keys` ([#19183](eslint/eslint#19183)) (Tanuj Kanti) - [`0c6b842`](eslint/eslint@0c6b842) docs: fix typos in `migration-guide.md` ([#19180](eslint/eslint#19180)) (루밀LuMir) - [`353266e`](eslint/eslint@353266e) docs: fix a typo in `debug.md` ([#19179](eslint/eslint#19179)) (루밀LuMir) - [`5ff318a`](eslint/eslint@5ff318a) docs: delete unnecessary horizontal rule(`---`) in `nodejs-api` ([#19175](eslint/eslint#19175)) (루밀LuMir) - [`576bcc5`](eslint/eslint@576bcc5) docs: mark more rules as handled by TypeScript ([#19164](eslint/eslint#19164)) (Tanuj Kanti) - [`742d054`](eslint/eslint@742d054) docs: note that `no-restricted-syntax` can be used with any language ([#19148](eslint/eslint#19148)) (Milos Djermanovic) #### Chores - [`feb703b`](eslint/eslint@feb703b) chore: upgrade to `@eslint/js@9.16.0` ([#19195](eslint/eslint#19195)) (Francesco Trotta) - [`df9bf95`](eslint/eslint@df9bf95) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`f831893`](eslint/eslint@f831893) chore: add type for `ignoreComputedKeys` option of `sort-keys` ([#19184](eslint/eslint#19184)) (Tanuj Kanti) - [`3afb8a1`](eslint/eslint@3afb8a1) chore: update dependency [@eslint/json](https://github.com/eslint/json) to ^0.8.0 ([#19177](eslint/eslint#19177)) (Milos Djermanovic) - [`1f77c53`](eslint/eslint@1f77c53) chore: add `repository.directory` property to `package.json` ([#19165](eslint/eslint#19165)) (루밀LuMir) - [`d460594`](eslint/eslint@d460594) chore: update dependency [@arethetypeswrong/cli](https://github.com/arethetypeswrong/cli) to ^0.17.0 ([#19147](eslint/eslint#19147)) (renovate\[bot]) - [`45cd4ea`](eslint/eslint@45cd4ea) refactor: update default options in rules ([#19136](eslint/eslint#19136)) (Milos Djermanovic) ##### [v9.15.0](eslint/eslint@v9.14.0...6f37b07) ##### [v9.14.0](eslint/eslint@v9.13.0...db0b844) ##### [v9.13.0](eslint/eslint@v9.12.0...1a7cdbf) ##### [v9.12.0](https://github.com/eslint/eslint/releases/tag/v9.12.0) #### Features - [`5a6a053`](eslint/eslint@5a6a053) feat: update to `jiti` v2 ([#18954](eslint/eslint#18954)) (Arya Emami) - [`17a07fb`](eslint/eslint@17a07fb) feat: Hooks for test cases (RuleTester) ([#18771](eslint/eslint#18771)) (Anna Bocharova) - [`2ff0e51`](eslint/eslint@2ff0e51) feat: Implement alternate config lookup ([#18742](eslint/eslint#18742)) (Nicholas C. Zakas) - [`2d17453`](eslint/eslint@2d17453) feat: Implement modified cyclomatic complexity ([#18896](eslint/eslint#18896)) (Dmitry Pashkevich) #### Bug Fixes - [`ea380ca`](eslint/eslint@ea380ca) fix: Upgrade retry to avoid EMFILE errors ([#18986](eslint/eslint#18986)) (Nicholas C. Zakas) - [`fdd6319`](eslint/eslint@fdd6319) fix: Issues with type definitions ([#18940](eslint/eslint#18940)) (Arya Emami) #### Documentation - [`ecbd522`](eslint/eslint@ecbd522) docs: Mention code explorer ([#18978](eslint/eslint#18978)) (Nicholas C. Zakas) - [`7ea4ecc`](eslint/eslint@7ea4ecc) docs: Clarifying the Use of Meta Objects ([#18697](eslint/eslint#18697)) (Amaresh S M) - [`d3e4b2e`](eslint/eslint@d3e4b2e) docs: Clarify how to exclude `.js` files ([#18976](eslint/eslint#18976)) (Milos Djermanovic) - [`57232ff`](eslint/eslint@57232ff) docs: Mention plugin-kit in language docs ([#18973](eslint/eslint#18973)) (Nicholas C. Zakas) - [`b80ed00`](eslint/eslint@b80ed00) docs: Update README (GitHub Actions Bot) - [`cb69ab3`](eslint/eslint@cb69ab3) docs: Update README (GitHub Actions Bot) - [`7fb0d95`](eslint/eslint@7fb0d95) docs: Update README (GitHub Actions Bot) - [`493348a`](eslint/eslint@493348a) docs: Update README (GitHub Actions Bot) - [`87a582c`](eslint/eslint@87a582c) docs: fix typo in `id-match` rule ([#18944](eslint/eslint#18944)) (Jay) #### Chores - [`555aafd`](eslint/eslint@555aafd) chore: upgrade to `@eslint/js@9.12.0` ([#18987](eslint/eslint#18987)) (Francesco Trotta) - [`873ae60`](eslint/eslint@873ae60) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`d0a5414`](eslint/eslint@d0a5414) refactor: replace strip-ansi with native module ([#18982](eslint/eslint#18982)) (Cristopher) - [`b827029`](eslint/eslint@b827029) chore: Enable JSON5 linting ([#18979](eslint/eslint#18979)) (Milos Djermanovic) - [`8f55ca2`](eslint/eslint@8f55ca2) chore: Upgrade espree, eslint-visitor-keys, eslint-scope ([#18962](eslint/eslint#18962)) (Nicholas C. Zakas) - [`c1a2725`](eslint/eslint@c1a2725) chore: update dependency mocha to ^10.7.3 ([#18945](eslint/eslint#18945)) (Milos Djermanovic) ##### [v9.11.1](eslint/eslint@v9.11.0...69e9459) ##### [v9.11.0](https://github.com/eslint/eslint/releases/tag/v9.11.0) #### Features - [`ec30c73`](eslint/eslint@ec30c73) feat: add "eslint/universal" to export `Linter` ([#18883](eslint/eslint#18883)) (唯然) - [`c591da6`](eslint/eslint@c591da6) feat: Add language to types ([#18917](eslint/eslint#18917)) (Nicholas C. Zakas) - [`492eb8f`](eslint/eslint@492eb8f) feat: limit the name given to `ImportSpecifier` in `id-length` ([#18861](eslint/eslint#18861)) (Tanuj Kanti) - [`19c6856`](eslint/eslint@19c6856) feat: Add `no-useless-constructor` suggestion ([#18799](eslint/eslint#18799)) (Jordan Thomson) - [`a48f8c2`](eslint/eslint@a48f8c2) feat: add type `FormatterFunction`, update `LoadedFormatter` ([#18872](eslint/eslint#18872)) (Francesco Trotta) #### Bug Fixes - [`5e5f39b`](eslint/eslint@5e5f39b) fix: add missing types for `no-restricted-exports` rule ([#18914](eslint/eslint#18914)) (Kristóf Poduszló) - [`8f630eb`](eslint/eslint@8f630eb) fix: add missing types for `no-param-reassign` options ([#18906](eslint/eslint#18906)) (Kristóf Poduszló) - [`d715781`](eslint/eslint@d715781) fix: add missing types for `no-extra-boolean-cast` options ([#18902](eslint/eslint#18902)) (Kristóf Poduszló) - [`2de5742`](eslint/eslint@2de5742) fix: add missing types for `no-misleading-character-class` options ([#18905](eslint/eslint#18905)) (Kristóf Poduszló) - [`c153084`](eslint/eslint@c153084) fix: add missing types for `no-implicit-coercion` options ([#18903](eslint/eslint#18903)) (Kristóf Poduszló) - [`fa11b2e`](eslint/eslint@fa11b2e) fix: add missing types for `no-empty-function` options ([#18901](eslint/eslint#18901)) (Kristóf Poduszló) - [`a0deed1`](eslint/eslint@a0deed1) fix: add missing types for `camelcase` options ([#18897](eslint/eslint#18897)) (Kristóf Poduszló) #### Documentation - [`e4e5709`](eslint/eslint@e4e5709) docs: correct `prefer-object-has-own` type definition comment ([#18924](eslint/eslint#18924)) (Nitin Kumar) - [`91cbd18`](eslint/eslint@91cbd18) docs: add unicode abbreviations in no-irregular-whitespace rule ([#18894](eslint/eslint#18894)) (Alix Royere) - [`59cfc0f`](eslint/eslint@59cfc0f) docs: clarify `resultsMeta` in `LoadedFormatter` type ([#18881](eslint/eslint#18881)) (Milos Djermanovic) - [`adcc50d`](eslint/eslint@adcc50d) docs: Update README (GitHub Actions Bot) - [`4edac1a`](eslint/eslint@4edac1a) docs: Update README (GitHub Actions Bot) #### Build Related - [`959d360`](eslint/eslint@959d360) build: Support updates to previous major versions ([#18871](eslint/eslint#18871)) (Milos Djermanovic) #### Chores - [`ca21a64`](eslint/eslint@ca21a64) chore: upgrade [@eslint/js](https://github.com/eslint/js)[@9](https://github.com/9).11.0 ([#18927](eslint/eslint#18927)) (Milos Djermanovic) - [`a10f90a`](eslint/eslint@a10f90a) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`e4e02cc`](eslint/eslint@e4e02cc) refactor: Extract processor logic into ProcessorService ([#18818](eslint/eslint#18818)) (Nicholas C. Zakas) - [`6d4484d`](eslint/eslint@6d4484d) chore: updates for v8.57.1 release (Jenkins) - [`71f37c5`](eslint/eslint@71f37c5) refactor: use optional chaining when validating config rules ([#18893](eslint/eslint#18893)) (lucasrmendonca) - [`2c2805f`](eslint/eslint@2c2805f) chore: Add PR note to all templates ([#18892](eslint/eslint#18892)) (Nicholas C. Zakas) - [`7b852ce`](eslint/eslint@7b852ce) refactor: use `Directive` class from `@eslint/plugin-kit` ([#18884](eslint/eslint#18884)) (Milos Djermanovic) - [`d594ddd`](eslint/eslint@d594ddd) chore: update dependency [@eslint/core](https://github.com/eslint/core) to ^0.6.0 ([#18863](eslint/eslint#18863)) (renovate\[bot]) - [`78b2421`](eslint/eslint@78b2421) chore: Update change.yml ([#18882](eslint/eslint#18882)) (Nicholas C. Zakas) - [`a416f0a`](eslint/eslint@a416f0a) chore: enable `$ExpectType` comments in .ts files ([#18869](eslint/eslint#18869)) (Francesco Trotta) ##### [v9.10.0](eslint/eslint@v9.9.1...6448f32) ##### [v9.9.1](eslint/eslint@v9.9.0...8781e6f) ##### [v9.9.0](https://github.com/eslint/eslint/releases/tag/v9.9.0) #### Features - [`41d0206`](eslint/eslint@41d0206) feat: Add support for TS config files ([#18134](eslint/eslint#18134)) (Arya Emami) - [`3a4eaf9`](eslint/eslint@3a4eaf9) feat: add suggestion to `require-await` to remove `async` keyword ([#18716](eslint/eslint#18716)) (Dave) #### Documentation - [`9fe068c`](eslint/eslint@9fe068c) docs: how to author plugins with configs that extend other configs ([#18753](eslint/eslint#18753)) (Alec Gibson) - [`48117b2`](eslint/eslint@48117b2) docs: add version support page in the side navbar ([#18738](eslint/eslint#18738)) (Amaresh S M) - [`fec2951`](eslint/eslint@fec2951) docs: add version support page to the dropdown ([#18730](eslint/eslint#18730)) (Amaresh S M) - [`38a0661`](eslint/eslint@38a0661) docs: Fix typo ([#18735](eslint/eslint#18735)) (Zaina Al Habash) - [`3c32a9e`](eslint/eslint@3c32a9e) docs: Update yarn command for creating ESLint config ([#18739](eslint/eslint#18739)) (Temitope Ogunleye) - [`f9ac978`](eslint/eslint@f9ac978) docs: Update README (GitHub Actions Bot) #### Chores - [`461b2c3`](eslint/eslint@461b2c3) chore: upgrade to `@eslint/js@9.9.0` ([#18765](eslint/eslint#18765)) (Francesco Trotta) - [`59dba1b`](eslint/eslint@59dba1b) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`fea8563`](eslint/eslint@fea8563) chore: update dependency [@eslint/core](https://github.com/eslint/core) to ^0.3.0 ([#18724](eslint/eslint#18724)) (renovate\[bot]) - [`aac191e`](eslint/eslint@aac191e) chore: update dependency [@eslint/json](https://github.com/eslint/json) to ^0.3.0 ([#18760](eslint/eslint#18760)) (renovate\[bot]) - [`b97fa05`](eslint/eslint@b97fa05) chore: update wdio dependencies for more stable tests ([#18759](eslint/eslint#18759)) (Christian Bromann) ##### [v9.8.0](eslint/eslint@v9.7.0...63881dc) ##### [v9.7.0](https://github.com/eslint/eslint/releases/tag/v9.7.0) #### Features - [`7bd9839`](eslint/eslint@7bd9839) feat: add support for es2025 duplicate named capturing groups ([#18630](eslint/eslint#18630)) (Yosuke Ota) - [`1381394`](eslint/eslint@1381394) feat: add `regex` option in `no-restricted-imports` ([#18622](eslint/eslint#18622)) (Nitin Kumar) #### Bug Fixes - [`14e9f81`](eslint/eslint@14e9f81) fix: destructuring in catch clause in `no-unused-vars` ([#18636](eslint/eslint#18636)) (Francesco Trotta) #### Documentation - [`9f416db`](eslint/eslint@9f416db) docs: Add Powered by Algolia label to the search. ([#18633](eslint/eslint#18633)) (Amaresh S M) - [`c8d26cb`](eslint/eslint@c8d26cb) docs: Open JS Foundation -> OpenJS Foundation ([#18649](eslint/eslint#18649)) (Milos Djermanovic) - [`6e79ac7`](eslint/eslint@6e79ac7) docs: `loadESLint` does not support option `cwd` ([#18641](eslint/eslint#18641)) (Francesco Trotta) #### Chores - [`793b718`](eslint/eslint@793b718) chore: upgrade [@eslint/js](https://github.com/eslint/js)[@9](https://github.com/9).7.0 ([#18680](eslint/eslint#18680)) (Francesco Trotta) - [`7ed6f9a`](eslint/eslint@7ed6f9a) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`7bcda76`](eslint/eslint@7bcda76) refactor: Add type references ([#18652](eslint/eslint#18652)) (Nicholas C. Zakas) - [`51bf57c`](eslint/eslint@51bf57c) chore: add tech sponsors through actions ([#18624](eslint/eslint#18624)) (Strek) - [`6320732`](eslint/eslint@6320732) refactor: don't use `parent` property in `NodeEventGenerator` ([#18653](eslint/eslint#18653)) (Milos Djermanovic) - [`9e6d640`](eslint/eslint@9e6d640) refactor: move "Parsing error" prefix adding to Linter ([#18650](eslint/eslint#18650)) (Milos Djermanovic) ##### [v9.6.0](eslint/eslint@v9.5.0...473d1bb) ##### [v9.5.0](eslint/eslint@v9.4.0...5352357) ##### [v9.4.0](eslint/eslint@v9.3.0...a5f7e58) ##### [v9.3.0](eslint/eslint@v9.2.0...41a871c) ##### [v9.2.0](eslint/eslint@v9.1.1...271e7ab) ##### [v9.1.1](eslint/eslint@v9.1.0...b4d2512) ##### [v9.1.0](eslint/eslint@v9.0.0...b78d831) ##### [v9.0.0](eslint/eslint@v8.57.0...e0cbc50)

##### [v9.18.0](eslint/eslint@v9.17.0...1c87b41) ##### [v9.17.0](eslint/eslint@v9.16.0...90c1db9) ##### [v9.16.0](https://github.com/eslint/eslint/releases/tag/v9.16.0) #### Features - [`8f70eb1`](eslint/eslint@8f70eb1) feat: Add `ignoreComputedKeys` option in `sort-keys` rule ([#19162](eslint/eslint#19162)) (Milos Djermanovic) #### Documentation - [`9eefc8f`](eslint/eslint@9eefc8f) docs: fix typos in `use-isnan` ([#19190](eslint/eslint#19190)) (루밀LuMir) - [`0c8cea8`](eslint/eslint@0c8cea8) docs: switch the order of words in `no-unreachable` ([#19189](eslint/eslint#19189)) (루밀LuMir) - [`0c19417`](eslint/eslint@0c19417) docs: add missing backtick to `no-async-promise-executor` ([#19188](eslint/eslint#19188)) (루밀LuMir) - [`8df9276`](eslint/eslint@8df9276) docs: add backtick in `-0` in `description` of `no-compare-neg-zero` ([#19186](eslint/eslint#19186)) (루밀LuMir) - [`7e16e3f`](eslint/eslint@7e16e3f) docs: fix `caseSensitive` option's title of `sort-keys` ([#19183](eslint/eslint#19183)) (Tanuj Kanti) - [`0c6b842`](eslint/eslint@0c6b842) docs: fix typos in `migration-guide.md` ([#19180](eslint/eslint#19180)) (루밀LuMir) - [`353266e`](eslint/eslint@353266e) docs: fix a typo in `debug.md` ([#19179](eslint/eslint#19179)) (루밀LuMir) - [`5ff318a`](eslint/eslint@5ff318a) docs: delete unnecessary horizontal rule(`---`) in `nodejs-api` ([#19175](eslint/eslint#19175)) (루밀LuMir) - [`576bcc5`](eslint/eslint@576bcc5) docs: mark more rules as handled by TypeScript ([#19164](eslint/eslint#19164)) (Tanuj Kanti) - [`742d054`](eslint/eslint@742d054) docs: note that `no-restricted-syntax` can be used with any language ([#19148](eslint/eslint#19148)) (Milos Djermanovic) #### Chores - [`feb703b`](eslint/eslint@feb703b) chore: upgrade to `@eslint/js@9.16.0` ([#19195](eslint/eslint#19195)) (Francesco Trotta) - [`df9bf95`](eslint/eslint@df9bf95) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`f831893`](eslint/eslint@f831893) chore: add type for `ignoreComputedKeys` option of `sort-keys` ([#19184](eslint/eslint#19184)) (Tanuj Kanti) - [`3afb8a1`](eslint/eslint@3afb8a1) chore: update dependency [@eslint/json](https://github.com/eslint/json) to ^0.8.0 ([#19177](eslint/eslint#19177)) (Milos Djermanovic) - [`1f77c53`](eslint/eslint@1f77c53) chore: add `repository.directory` property to `package.json` ([#19165](eslint/eslint#19165)) (루밀LuMir) - [`d460594`](eslint/eslint@d460594) chore: update dependency [@arethetypeswrong/cli](https://github.com/arethetypeswrong/cli) to ^0.17.0 ([#19147](eslint/eslint#19147)) (renovate\[bot]) - [`45cd4ea`](eslint/eslint@45cd4ea) refactor: update default options in rules ([#19136](eslint/eslint#19136)) (Milos Djermanovic) ##### [v9.15.0](eslint/eslint@v9.14.0...6f37b07) ##### [v9.14.0](eslint/eslint@v9.13.0...db0b844) ##### [v9.13.0](eslint/eslint@v9.12.0...1a7cdbf) ##### [v9.12.0](https://github.com/eslint/eslint/releases/tag/v9.12.0) #### Features - [`5a6a053`](eslint/eslint@5a6a053) feat: update to `jiti` v2 ([#18954](eslint/eslint#18954)) (Arya Emami) - [`17a07fb`](eslint/eslint@17a07fb) feat: Hooks for test cases (RuleTester) ([#18771](eslint/eslint#18771)) (Anna Bocharova) - [`2ff0e51`](eslint/eslint@2ff0e51) feat: Implement alternate config lookup ([#18742](eslint/eslint#18742)) (Nicholas C. Zakas) - [`2d17453`](eslint/eslint@2d17453) feat: Implement modified cyclomatic complexity ([#18896](eslint/eslint#18896)) (Dmitry Pashkevich) #### Bug Fixes - [`ea380ca`](eslint/eslint@ea380ca) fix: Upgrade retry to avoid EMFILE errors ([#18986](eslint/eslint#18986)) (Nicholas C. Zakas) - [`fdd6319`](eslint/eslint@fdd6319) fix: Issues with type definitions ([#18940](eslint/eslint#18940)) (Arya Emami) #### Documentation - [`ecbd522`](eslint/eslint@ecbd522) docs: Mention code explorer ([#18978](eslint/eslint#18978)) (Nicholas C. Zakas) - [`7ea4ecc`](eslint/eslint@7ea4ecc) docs: Clarifying the Use of Meta Objects ([#18697](eslint/eslint#18697)) (Amaresh S M) - [`d3e4b2e`](eslint/eslint@d3e4b2e) docs: Clarify how to exclude `.js` files ([#18976](eslint/eslint#18976)) (Milos Djermanovic) - [`57232ff`](eslint/eslint@57232ff) docs: Mention plugin-kit in language docs ([#18973](eslint/eslint#18973)) (Nicholas C. 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chore: enable $ExpectType comments in .ts files

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eslint-github-bot bot added the chore This change is not user-facing label Sep 7, 2024

fasttime marked this pull request as ready for review September 9, 2024 07:25

fasttime requested a review from a team as a code owner September 9, 2024 07:25

nzakas reviewed Sep 9, 2024

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fasttime mentioned this pull request Sep 9, 2024

fix: make recommended config a valid flat config JoshuaKGoldberg/eslint-plugin-expect-type#462

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fasttime and others added 2 commits September 9, 2024 21:48

Update eslint.config.js

9f11f85

Co-authored-by: Nicholas C. Zakas <nicholas@humanwhocodes.com>

ignore .ts files in lib/types

2c7ed2e

nzakas approved these changes Sep 10, 2024

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nzakas merged commit a416f0a into main Sep 10, 2024
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nzakas deleted the fix-expect-type branch September 10, 2024 15:42

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chore: enable `$ExpectType` comments in .ts files #18869

chore: enable `$ExpectType` comments in .ts files #18869

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chore: enable $ExpectType comments in .ts files #18869

chore: enable $ExpectType comments in .ts files #18869

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chore: enable `$ExpectType` comments in .ts files #18869

chore: enable `$ExpectType` comments in .ts files #18869

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