[0.9.0] - 2024-08-26

This release introduces no-unused-vars as a correctness rule and parsing regular expressions for syntax errors, both may produce false positives. Feel free to submit an issue.

• 5946748 linter: [BREAKING] Parse and display syntax errors for regular expressions (#5214) (Boshen)

• b894d3b linter: [BREAKING] Make no-unused-vars correctness (#5081) (DonIsaac)

Features

• 1ce9630 linter/config: Implement FromIterator for LintPluginOptions (#5102) (DonIsaac)
• 34bfaf6 linter/react: Add fixer to jsx-props-no-spread-multi (#5145) (camc314)
• 982bd6e linter/unicorn: Add fixer to require-array-join-separator (#5152) (camc314)
• a6704bd linter/unicorn: Add fixer to prefer-set-size (#5149) (camc314)
• ac7edcc linter/unicorn: Add fixer to prefer-array-some (#5153) (camc314)
• 1d01aa3 linter/unicorn: Add partial fixer for prefer-array-flat (#5143) (camc314)
• 22d57f9 linter/unicorn: Add fixer to prefer-string-slice (#5150) (Cameron)
• 2fe4415 linter/unicorn: Add fixer to no-redundant-roles (#5146) (Cameron)
• d35c6f5 linter/unicorn: Add fixer to prefer-regexp-test (#5151) (Cameron)
• 27db769 linter/unicorn: Add fixer to text-encoding-identifier-case (#5154) (Cameron)
• f7958c4 linter/unicorn: Add prefer-structured-clone (#5095) (Jelle van der Waa)
• 004ffa0 linter/vitest: Implement prefer-each (#5203) (dalaoshu)

Bug Fixes

• aaaf26c linter: Error in fixer for prefer-to-have-length (#5197) (dalaoshu)
• 1f5b6b6 linter: Bug in fixer for prefer-to-have-length (#5164) (dalaoshu)
• 7eb052e linter: no-hex-escape fixer removing regex flags (#5137) (Cameron)
• 76c66b4 linter/max-lines: Point span to end of file for disable directive to work (#5117) (Boshen)
• 8ff6f2c linter/no-unused-vars: Panic on UsingDeclarations (#5206) (DonIsaac)
• d29042e linter/no-unused-vars: Function expression in implicit arrow function return (#5155) (DonIsaac)
• 36e4a28 linter/no-unused-vars: Panic in variable declarator usage checks (#5160) (DonIsaac)
• ba62a71 linter/react: Fixed false positive with missing key inside React.Children.toArray() for fragments (#5133) (Earl Chase)
• fd1031a linter/unicorn: Breaking fixer in case statements for no-null (#5176) (DonIsaac)
• 7b86ed6 linter/unicorn: Handle type casts and parens in no-null (#5175) (Don Isaac)
• b629e16 linter/unicorn: Improve diagnostic message for no-null (#5172) (DonIsaac)

Performance

• ce454cf Use simdutf8 to validate UTF-8 when reading files (#5196) (dalaoshu)

Refactor

• 543cad6 codegen: Remove some pub APIs (Boshen)
• 0d3661a linter: Remove meaningless span0 (#5209) (dalaoshu)
• 2a91ef1 linter: eslint/no_redeclare rule use run_on_symbol not run_once (#5201) (overlookmotel)
• 33599b0 linter: Split options into multiple files (#5101) (DonIsaac)
• 7ab6152 linter/unicorn: Clean up no-null (#5174) (DonIsaac)

Testing

• a877e5a linter/no-unused-vars: Ensure type annotations on property accessors are considered used (#5183) (DonIsaac)
• 7886618 linter/unicorn: Add fixer tests for no-null (#5173) (DonIsaac)