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[Tests] migrate helper parsers function from
eslint-plugin-react
Co-authored-by: Ross Rosales <[email protected]> Co-authored-by: Jordan Harband <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| import { version } from 'eslint/package.json'; | ||
| import semver from 'semver'; | ||
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| const isESLintV8 = semver.major(version) >= 8; | ||
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| // eslint-disable-next-line global-require, import/no-dynamic-require, import/no-unresolved | ||
| const getESLintCoreRule = (ruleId) => (isESLintV8 ? require('eslint/use-at-your-own-risk').builtinRules.get(ruleId) : require(`eslint/lib/rules/${ruleId}`)); | ||
|
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| export default getESLintCoreRule; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,186 @@ | ||
| import path from 'path'; | ||
| import semver from 'semver'; | ||
| import entries from 'object.entries'; | ||
| import { version } from 'eslint/package.json'; | ||
| import flatMap from 'array.prototype.flatmap'; | ||
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| let tsParserVersion; | ||
| try { | ||
| // eslint-disable-next-line import/no-unresolved, global-require | ||
| tsParserVersion = require('@typescript-eslint/parser/package.json').version; | ||
| } catch (e) { /**/ } | ||
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| const disableNewTS = semver.satisfies(tsParserVersion, '>= 4.1') // this rule is not useful on v4.1+ of the TS parser | ||
| ? (x) => ({ ...x, features: [].concat(x.features, 'no-ts-new') }) | ||
| : (x) => x; | ||
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| function minEcmaVersion(features, parserOptions) { | ||
| const minEcmaVersionForFeatures = { | ||
| 'class fields': 2022, | ||
| 'optional chaining': 2020, | ||
| 'nullish coalescing': 2020, | ||
| }; | ||
| const result = Math.max( | ||
| ...[].concat( | ||
| (parserOptions && parserOptions.ecmaVersion) || [], | ||
| flatMap(entries(minEcmaVersionForFeatures), (entry) => { | ||
| const f = entry[0]; | ||
| const y = entry[1]; | ||
| return features.has(f) ? y : []; | ||
| }), | ||
| ).map((y) => (y > 5 && y < 2015 ? y + 2009 : y)), // normalize editions to years | ||
| ); | ||
| return Number.isFinite(result) ? result : undefined; | ||
| } | ||
|
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| const NODE_MODULES = '../../node_modules'; | ||
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| const parsers = { | ||
| BABEL_ESLINT: path.join(__dirname, NODE_MODULES, 'babel-eslint'), | ||
| '@BABEL_ESLINT': path.join(__dirname, NODE_MODULES, '@babel/eslint-parser'), | ||
| TYPESCRIPT_ESLINT: path.join(__dirname, NODE_MODULES, 'typescript-eslint-parser'), | ||
| '@TYPESCRIPT_ESLINT': path.join(__dirname, NODE_MODULES, '@typescript-eslint/parser'), | ||
| disableNewTS, | ||
| babelParserOptions: function parserOptions(test, features) { | ||
| return { | ||
| ...test.parserOptions, | ||
| requireConfigFile: false, | ||
| babelOptions: { | ||
| presets: [ | ||
| '@babel/preset-react', | ||
| ], | ||
| plugins: [ | ||
| '@babel/plugin-syntax-do-expressions', | ||
| '@babel/plugin-syntax-function-bind', | ||
| ['@babel/plugin-syntax-decorators', { legacy: true }], | ||
| ], | ||
| parserOpts: { | ||
| allowSuperOutsideMethod: false, | ||
| allowReturnOutsideFunction: false, | ||
| }, | ||
| }, | ||
| ecmaFeatures: { | ||
|
|
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| ...test.parserOptions && test.parserOptions.ecmaFeatures, | ||
| jsx: true, | ||
| modules: true, | ||
| legacyDecorators: features.has('decorators'), | ||
| }, | ||
| }; | ||
| }, | ||
| all: function all(tests) { | ||
| const t = flatMap(tests, (test) => { | ||
| /* eslint no-param-reassign: 0 */ | ||
| if (typeof test === 'string') { | ||
| test = { code: test }; | ||
| } | ||
| if ('parser' in test) { | ||
| delete test.features; | ||
| return test; | ||
| } | ||
| const features = new Set([].concat(test.features || [])); | ||
| delete test.features; | ||
|
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| const es = minEcmaVersion(features, test.parserOptions); | ||
|
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| function addComment(testObject, parser) { | ||
| const extras = [].concat( | ||
| `features: [${Array.from(features).join(',')}]`, | ||
| `parser: ${parser}`, | ||
| testObject.parserOptions ? `parserOptions: ${JSON.stringify(testObject.parserOptions)}` : [], | ||
| testObject.options ? `options: ${JSON.stringify(testObject.options)}` : [], | ||
| testObject.settings ? `settings: ${JSON.stringify(testObject.settings)}` : [], | ||
| ); | ||
|
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| const extraComment = `\n// ${extras.join(', ')}`; | ||
|
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| // Augment expected fix code output with extraComment | ||
| const nextCode = { code: testObject.code + extraComment }; | ||
| const nextOutput = testObject.output && { output: testObject.output + extraComment }; | ||
|
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| // Augment expected suggestion outputs with extraComment | ||
| // `errors` may be a number (expected number of errors) or an array of | ||
| // error objects. | ||
| const nextErrors = testObject.errors | ||
| && typeof testObject.errors !== 'number' | ||
| && { | ||
| errors: testObject.errors.map( | ||
| (errorObject) => { | ||
| const nextSuggestions = errorObject.suggestions && { | ||
| suggestions: errorObject.suggestions.map((suggestion) => ({ ...suggestion, output: suggestion.output + extraComment })), | ||
| }; | ||
|
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| return { ...errorObject, ...nextSuggestions }; | ||
| }, | ||
| ), | ||
| }; | ||
|
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| return { | ||
|
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| ...testObject, | ||
| ...nextCode, | ||
| ...nextOutput, | ||
| ...nextErrors, | ||
| }; | ||
| } | ||
|
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| const skipBase = (features.has('class fields') && semver.satisfies(version, '< 8')) | ||
| || (es >= 2020 && semver.satisfies(version, '< 6')) | ||
| || features.has('no-default') | ||
| || features.has('bind operator') | ||
| || features.has('do expressions') | ||
| || features.has('decorators') | ||
| || features.has('flow') | ||
| || features.has('ts') | ||
| || features.has('types') | ||
| || (features.has('fragment') && semver.satisfies(version, '< 5')); | ||
|
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| const skipBabel = features.has('no-babel'); | ||
| const skipOldBabel = skipBabel | ||
| || features.has('no-babel-old') | ||
| || features.has('optional chaining') | ||
| || semver.satisfies(version, '>= 8'); | ||
| const skipNewBabel = skipBabel | ||
| || features.has('no-babel-new') | ||
| || !semver.satisfies(version, '^7.5.0') // require('@babel/eslint-parser/package.json').peerDependencies.eslint | ||
| || features.has('flow') | ||
| || features.has('types') | ||
| || features.has('ts'); | ||
| const skipTS = semver.satisfies(version, '<= 5') // TODO: make these pass on eslint 5 | ||
| || features.has('no-ts') | ||
| || features.has('flow') | ||
| || features.has('jsx namespace') | ||
| || features.has('bind operator') | ||
| || features.has('do expressions'); | ||
| const tsOld = !skipTS && !features.has('no-ts-old'); | ||
| const tsNew = !skipTS && !features.has('no-ts-new'); | ||
|
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| return [].concat( | ||
| skipBase ? [] : addComment( | ||
| { | ||
| ...test, | ||
| ...typeof es === 'number' && { | ||
| parserOptions: { ...test.parserOptions, ecmaVersion: es }, | ||
| }, | ||
| }, | ||
| 'default', | ||
| ), | ||
| skipOldBabel ? [] : addComment({ | ||
| ...test, | ||
| parser: parsers.BABEL_ESLINT, | ||
| parserOptions: parsers.babelParserOptions(test, features), | ||
| }, 'babel-eslint'), | ||
| skipNewBabel ? [] : addComment({ | ||
| ...test, | ||
| parser: parsers['@BABEL_ESLINT'], | ||
| parserOptions: parsers.babelParserOptions(test, features), | ||
| }, '@babel/eslint-parser'), | ||
| tsOld ? addComment({ ...test, parser: parsers.TYPESCRIPT_ESLINT }, 'typescript-eslint') : [], | ||
| tsNew ? addComment({ ...test, parser: parsers['@TYPESCRIPT_ESLINT'] }, '@typescript-eslint/parser') : [], | ||
| ); | ||
| }); | ||
| return t; | ||
| }, | ||
| }; | ||
|
|
||
| export default parsers; |
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