fix(parser): fix lexer error while parsing parenthesized arrow expressions #3400
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[](https://renovatebot.com) This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | [oxlint](https://oxc.rs) ([source](https://github.com/oxc-project/oxc/tree/HEAD/npm/oxlint)) | [`0.3.5` -> `0.4.3`](https://renovatebot.com/diffs/npm/oxlint/0.3.5/0.4.3) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | --- ### Release Notes <details> <summary>oxc-project/oxc (oxlint)</summary> ### [`v0.4.3`](https://github.com/oxc-project/oxc/releases/tag/oxlint_v0.4.3): oxlint v0.4.3 [Compare Source](https://github.com/oxc-project/oxc/compare/031bbe6dc4b0707b324bee7c9f49543a4c8bf212...4b9a36512ec5186babdf726e604336bfc6838f6c) #### \[0.4.3] - 2024-06-07 ##### Features - [`1fb9d23`](https://github.com/oxc-project/oxc/commit/1fb9d23) linter: Add fixer for no-useless-fallback-in-spread rule ([#​3544](https://github.com/oxc-project/oxc/issues/3544)) (Don Isaac) - [`6506d08`](https://github.com/oxc-project/oxc/commit/6506d08) linter: Add fixer for no-single-promise-in-promise-methods ([#​3531](https://github.com/oxc-project/oxc/issues/3531)) (Don Isaac) - [`daf559f`](https://github.com/oxc-project/oxc/commit/daf559f) linter: Eslint-plugin-jest/no-large-snapshot ([#​3436](https://github.com/oxc-project/oxc/issues/3436)) (cinchen) - [`4c17bc6`](https://github.com/oxc-project/oxc/commit/4c17bc6) linter: Eslint/no-constructor-return ([#​3321](https://github.com/oxc-project/oxc/issues/3321)) (谭光志) - [`4a075cc`](https://github.com/oxc-project/oxc/commit/4a075cc) linter/jsdoc: Implement require-param rule ([#​3554](https://github.com/oxc-project/oxc/issues/3554)) (Yuji Sugiura) - [`747500a`](https://github.com/oxc-project/oxc/commit/747500a) linter/jsdoc: Implement require-returns-type rule ([#​3458](https://github.com/oxc-project/oxc/issues/3458)) (Yuji Sugiura) - [`6b39654`](https://github.com/oxc-project/oxc/commit/6b39654) linter/tree-shaking: Support options ([#​3504](https://github.com/oxc-project/oxc/issues/3504)) (Wang Wenzhe) ##### Bug Fixes - [`b188778`](https://github.com/oxc-project/oxc/commit/b188778) linter/eslint: Fix `require-await` false positives in `ForOfStatement`. ([#​3457](https://github.com/oxc-project/oxc/issues/3457)) (rzvxa) - [`350cd91`](https://github.com/oxc-project/oxc/commit/350cd91) parser: Should parser error when function declaration has no name ([#​3461](https://github.com/oxc-project/oxc/issues/3461)) (Dunqing) ### [`v0.4.2`](https://github.com/oxc-project/oxc/releases/tag/oxlint_v0.4.2): oxlint v0.4.2 [Compare Source](https://github.com/oxc-project/oxc/compare/d971c9cd0b7da94896179ebd5a8b95b62d05a1c1...031bbe6dc4b0707b324bee7c9f49543a4c8bf212) #### What's Changed ##### Linter - `require-await` by [@​todor-a](https://github.com/todor-a) in [https://github.com/oxc-project/oxc/pull/3406](https://github.com/oxc-project/oxc/pull/3406) - `eslint-plugin-unicorn/no-magic-array` flat depth by [@​camc314](https://github.com/camc314) in [https://github.com/oxc-project/oxc/pull/3411](https://github.com/oxc-project/oxc/pull/3411) - `@typescript-eslint/consistent-indexed-object-style` by [@​todor-a](https://github.com/todor-a) in [https://github.com/oxc-project/oxc/pull/3126](https://github.com/oxc-project/oxc/pull/3126) - `oxc/no-async-await` rule by [@​mysteryven](https://github.com/mysteryven) in [https://github.com/oxc-project/oxc/pull/3438](https://github.com/oxc-project/oxc/pull/3438) - `oxc/no-const-enum` rule by [@​mysteryven](https://github.com/mysteryven) in [https://github.com/oxc-project/oxc/pull/3435](https://github.com/oxc-project/oxc/pull/3435) - `oxc/no-rest-spread-properties` rule by [@​mysteryven](https://github.com/mysteryven) in [https://github.com/oxc-project/oxc/pull/3432](https://github.com/oxc-project/oxc/pull/3432) - `eslint-plugin-jest/prefer-hooks-on-top` by [@​eryue0220](https://github.com/eryue0220) in [https://github.com/oxc-project/oxc/pull/3437](https://github.com/oxc-project/oxc/pull/3437) - `eslint-plugin-jest/require-top-level-describe` by [@​eryue0220](https://github.com/eryue0220) in [https://github.com/oxc-project/oxc/pull/3439](https://github.com/oxc-project/oxc/pull/3439) - `no-div-regex` by [@​jelly](https://github.com/jelly) in [https://github.com/oxc-project/oxc/pull/3442](https://github.com/oxc-project/oxc/pull/3442) - `no-useless-concat` by [@​jelly](https://github.com/jelly) in [https://github.com/oxc-project/oxc/pull/3363](https://github.com/oxc-project/oxc/pull/3363) - prefer-string-starts-ends-with: accept more valid regex by [@​magic-akari](https://github.com/magic-akari) in [https://github.com/oxc-project/oxc/pull/3408](https://github.com/oxc-project/oxc/pull/3408) ##### Parser - fix(parser): parse const extends in arrow functions correctly by [@​Dunqing](https://github.com/Dunqing) in [https://github.com/oxc-project/oxc/pull/3450](https://github.com/oxc-project/oxc/pull/3450) #### New Contributors - [@​Bassadin](https://github.com/Bassadin) made their first contribution in [https://github.com/oxc-project/oxc/pull/3433](https://github.com/oxc-project/oxc/pull/3433) **Full Changelog**: oxc-project/oxc@oxlint_v0.4.1...oxlint_v0.4.2 ### [`v0.4.1`](https://github.com/oxc-project/oxc/releases/tag/oxlint_v0.4.1): oxlint v0.4.1 [Compare Source](https://github.com/oxc-project/oxc/compare/e5337f00b1c7b49cb09d28b860e112d4ebad3233...d971c9cd0b7da94896179ebd5a8b95b62d05a1c1) #### What's Changed - fix(parser): fix lexer error while parsing parenthesized arrow expressions by [@​Boshen](https://github.com/Boshen) in [https://github.com/oxc-project/oxc/pull/3400](https://github.com/oxc-project/oxc/pull/3400) The previous version refactored some parsing code around arrow expressions, which failed to parse the following snippet correctly ```javascript (/\./.exec()) ``` **Full Changelog**: oxc-project/oxc@oxlint_v0.4.0...oxlint_v0.4.1 ### [`v0.4.0`](https://github.com/oxc-project/oxc/releases/tag/oxlint_v0.4.0): oxlint v0.4.0 [Compare Source](https://github.com/oxc-project/oxc/compare/754d9f4c98aab052cf6b2756f7af12557042708d...e5337f00b1c7b49cb09d28b860e112d4ebad3233) #### Potential Breaking Changes ##### enforce rule severity from the cli and configuration file by [@​Boshen](https://github.com/Boshen) in [https://github.com/oxc-project/oxc/pull/3337](https://github.com/oxc-project/oxc/pull/3337) The `--deny` or `-D` flag in the CLI, and the `"error"` severity setting in the configuration file will now set linter diagnostics to be an "error" and exit the program with exit code 1. Previously, these flags had no effect, and all linter diagnostics were reported as warnings. This means in CI, `oxlint --deny-warnings` is no longer needed for exit code 1 if `oxlint -D correctness` is set. To restore the previous "report as warning" behaviour, the `--warn` or `-W` flag is added to the CLI, and the `"warn"` severity in the configuration file will take into effect. ##### merge deepscan rules into oxc rules by [@​Boshen](https://github.com/Boshen) in [https://github.com/oxc-project/oxc/pull/3327](https://github.com/oxc-project/oxc/pull/3327) `deepscan` rules are now "oxc" rules, because there is no "deepscan" plugin in the eslint ecosystem and this caused some confusion. #### Ecosystem CI We added the [`Oxlint Ecosystem CI`](https://github.com/oxc-project/oxlint-ecosystem-ci/actions/workflows/ecosystem-ci.yml) to maximize ecosystem compatibility, reduce churn, and minimize break-after-release #### New Features - `--disable-oxc-plugin` by [@​Boshen](https://github.com/Boshen) in [https://github.com/oxc-project/oxc/pull/3328](https://github.com/oxc-project/oxc/pull/3328) - `--disable`-react/unicorn/typescript-`plugin` by [@​Boshen](https://github.com/Boshen) in [https://github.com/oxc-project/oxc/pull/3305](https://github.com/oxc-project/oxc/pull/3305) The default rule set enables some plugins by default, the following CLI arguments are added for disabling them: - `--disable-react-plugin` - `--disable-unicorn-plugin` - `--disable-oxc-plugin` - `--disable-typescript-plugin` #### New Rules Two notable new rules that are under experiment but worth a try: ##### No Barrel File `oxlint --import-plugin -D no-barrel-file` Loading a lot of modules is slow for runtimes and bundlers. <img width="600" alt="image" src="https://github.com/oxc-project/oxc/assets/1430279/964d8615-a5c2-4934-a1e4-a6f8b023e199"> To change the threshhold: `oxlint -c oxlintrc.json --import-plugin -D no-barrel-file` ```json { "rules": { "oxc/no-barrel-file": ["error", { "threshold": 10 }] } } ``` See [Speeding up the JavaScript ecosystem - The barrel file debacle](https://marvinh.dev/blog/speeding-up-javascript-ecosystem-part-7) for background reading. ##### Rule of Hooks `oxlint -D rules-of-hooks` Enforce the React Rules of Hooks. - `eslint-plugin-jest/no-duplicate-hooks` by [@​eryue0220](https://github.com/eryue0220) in [https://github.com/oxc-project/oxc/pull/3358](https://github.com/oxc-project/oxc/pull/3358) - `default-case` rule by [@​jelly](https://github.com/jelly) in [https://github.com/oxc-project/oxc/pull/3379](https://github.com/oxc-project/oxc/pull/3379) - `no-new` by [@​jelly](https://github.com/jelly) in [https://github.com/oxc-project/oxc/pull/3368](https://github.com/oxc-project/oxc/pull/3368) - `prefer-exponentiation-operator` by [@​jelly](https://github.com/jelly) in [https://github.com/oxc-project/oxc/pull/3365](https://github.com/oxc-project/oxc/pull/3365) - `symbol-description` by [@​jelly](https://github.com/jelly) in [https://github.com/oxc-project/oxc/pull/3364](https://github.com/oxc-project/oxc/pull/3364) - `jsdoc/require-returns-description` by [@​leaysgur](https://github.com/leaysgur) in [https://github.com/oxc-project/oxc/pull/3397](https://github.com/oxc-project/oxc/pull/3397) #### Bug Fixes - fix(linter): avoid infinite loop in `jest/expect-expect` by [@​mysteryven](https://github.com/mysteryven) in [https://github.com/oxc-project/oxc/pull/3332](https://github.com/oxc-project/oxc/pull/3332) - fix(linter): avoid infinite loop when traverse ancestors in `jest/no_conditional_expect` by [@​mysteryven](https://github.com/mysteryven) in [https://github.com/oxc-project/oxc/pull/3330](https://github.com/oxc-project/oxc/pull/3330) - fix(linter): fix panic in jest/expect-expect by [@​Boshen](https://github.com/Boshen) in [https://github.com/oxc-project/oxc/pull/3324](https://github.com/oxc-project/oxc/pull/3324) - fix(linter/jsx-no-undef): check for globals when an identifier is undefined by [@​Boshen](https://github.com/Boshen) in [https://github.com/oxc-project/oxc/pull/3331](https://github.com/oxc-project/oxc/pull/3331) - fix(linter/next): false positives for non-custom font link by [@​Dunqing](https://github.com/Dunqing) in [https://github.com/oxc-project/oxc/pull/3383](https://github.com/oxc-project/oxc/pull/3383) #### Performance Improvements - perf(lexer): use bitshifting when parsing known integers by [@​DonIsaac](https://github.com/DonIsaac) in [https://github.com/oxc-project/oxc/pull/3296](https://github.com/oxc-project/oxc/pull/3296) - perf(linter): use `usize` for `RuleEnum` hash by [@​Boshen](https://github.com/Boshen) in [https://github.com/oxc-project/oxc/pull/3336](https://github.com/oxc-project/oxc/pull/3336) - perf(parser): more efficient number parsing by [@​overlookmotel](https://github.com/overlookmotel) in [https://github.com/oxc-project/oxc/pull/3342](https://github.com/oxc-project/oxc/pull/3342) - perf(parser): use `FxHashSet` for `not_parenthesized_arrow` by [@​Boshen](https://github.com/Boshen) in [https://github.com/oxc-project/oxc/pull/3344](https://github.com/oxc-project/oxc/pull/3344) - perf(parser): improve `parse_simple_arrow_function_expression` by [@​Boshen](https://github.com/Boshen) in [https://github.com/oxc-project/oxc/pull/3349](https://github.com/oxc-project/oxc/pull/3349) - perf(parser): improve expression parsing by [@​Boshen](https://github.com/Boshen) in [https://github.com/oxc-project/oxc/pull/3352](https://github.com/oxc-project/oxc/pull/3352) - perf(parser): improve is_parenthesized_arrow_function_expression by [@​Boshen](https://github.com/Boshen) in [https://github.com/oxc-project/oxc/pull/3343](https://github.com/oxc-project/oxc/pull/3343) #### What's coming next - Published JSON schema for configuration file - More features to the configuration file - Automatically synced and never outdated documentation website pages - [Command-line Interface](https://oxc-project.github.io/docs/guide/usage/linter/cli.html) - [Configuration File](https://oxc-project.github.io/docs/guide/usage/linter/config.html) - [Rules Page](https://oxc-project.github.io/docs/guide/usage/linter/rules.html) **Full Changelog**: oxc-project/oxc@oxlint_v0.3.5...oxlint_v0.4.0 </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. 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closes #3399