ota-meshi / eslint-plugin-yml / 21091267163

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Add ESLint language plugin support (#532)

* Initial plan

* Add ESLint language plugin support with YAMLLanguage implementation

Co-authored-by: ota-meshi <16508807+ota-meshi@users.noreply.github.com>

* Add changeset for ESLint language plugin support

Co-authored-by: ota-meshi <16508807+ota-meshi@users.noreply.github.com>

* Fix getTokensBetween signature for better type consistency

Co-authored-by: ota-meshi <16508807+ota-meshi@users.noreply.github.com>

* Update add-language-plugin-support.md

* Add test cases for language plugin support

- Add tests/src/language/directive-comments.ts for ESLint directive comment functionality
- Add tests/src/language/yaml-source-code.ts for YAMLSourceCode class methods
- Tests cover eslint-disable, eslint-enable, eslint-disable-line, eslint-disable-next-line
- Tests cover inline configuration comments
- Tests cover YAMLSourceCode token and comment retrieval methods
- All 45 new tests passing, total 5153 tests pass

Co-authored-by: ota-meshi <16508807+ota-meshi@users.noreply.github.com>

* Add token-store and core-rules compatibility tests

- Add tests/src/language/token-store.ts for comprehensive TokenStore testing
- Add tests/src/language/yaml-source-code-with-core-rules.ts for ESLint core rules compatibility
- TokenStore tests cover all methods: getFirstToken, getLastToken, getTokenBefore/After, getTokens, getTokensBetween, getComments
- Core rules test ensures all ESLint built-in rules don't crash with yml/yaml language
- 320 new tests added (28 TokenStore + 292 core rules tests)
- Total: 5,473 tests passing

Co-authored-by: ota-meshi <16508807+ota-meshi@users.noreply.github.com>

* Fix linting errors - remove trailing whitespace

Fixed prettier/prettier errors in yaml-source-code.ts test file by removing trailing whitespace from 3 lines.

Co-authored-by: ota-meshi <16508807+ota-meshi@users.noreply.github.com>

* Update add-language-plugin-support.md

* Refactor token-store tests to remove getPair helper

Rem... (continued)

1612 of 1888 branches covered (85.38%)

Branch coverage included in aggregate %.

278 of 314 new or added lines in 5 files covered. (88.54%)

2963 of 3214 relevant lines covered (92.19%)

629.67 hits per line