refactor start
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Spectre
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bd49791e06
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16699 changed files with 2 additions and 1484887 deletions
174
home/ags/node_modules/eslint-module-utils/parse.js
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174
home/ags/node_modules/eslint-module-utils/parse.js
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'use strict';
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exports.__esModule = true;
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/** @typedef {`.${string}`} Extension */
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/** @typedef {NonNullable<import('eslint').Rule.RuleContext['settings']> & { 'import/extensions'?: Extension[], 'import/parsers'?: { [k: string]: Extension[] }, 'import/cache'?: { lifetime: number | '∞' | 'Infinity' } }} ESLintSettings */
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const moduleRequire = require('./module-require').default;
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const extname = require('path').extname;
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const fs = require('fs');
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const log = require('debug')('eslint-plugin-import:parse');
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/** @type {(parserPath: NonNullable<import('eslint').Rule.RuleContext['parserPath']>) => unknown} */
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function getBabelEslintVisitorKeys(parserPath) {
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if (parserPath.endsWith('index.js')) {
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const hypotheticalLocation = parserPath.replace('index.js', 'visitor-keys.js');
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if (fs.existsSync(hypotheticalLocation)) {
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const keys = moduleRequire(hypotheticalLocation);
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return keys.default || keys;
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}
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}
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return null;
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}
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/** @type {(parserPath: import('eslint').Rule.RuleContext['parserPath'], parserInstance: { VisitorKeys: unknown }, parsedResult?: { visitorKeys?: unknown }) => unknown} */
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function keysFromParser(parserPath, parserInstance, parsedResult) {
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// Exposed by @typescript-eslint/parser and @babel/eslint-parser
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if (parsedResult && parsedResult.visitorKeys) {
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return parsedResult.visitorKeys;
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}
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if (typeof parserPath === 'string' && (/.*espree.*/).test(parserPath)) {
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return parserInstance.VisitorKeys;
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}
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if (typeof parserPath === 'string' && (/.*babel-eslint.*/).test(parserPath)) {
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return getBabelEslintVisitorKeys(parserPath);
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}
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return null;
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}
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// this exists to smooth over the unintentional breaking change in v2.7.
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// TODO, semver-major: avoid mutating `ast` and return a plain object instead.
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/** @type {<T extends import('eslint').AST.Program>(ast: T, visitorKeys: unknown) => T} */
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function makeParseReturn(ast, visitorKeys) {
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if (ast) {
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// @ts-expect-error see TODO
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ast.visitorKeys = visitorKeys;
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// @ts-expect-error see TODO
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ast.ast = ast;
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}
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return ast;
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}
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/** @type {(text: string) => string} */
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function stripUnicodeBOM(text) {
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return text.charCodeAt(0) === 0xFEFF ? text.slice(1) : text;
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}
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/** @type {(text: string) => string} */
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function transformHashbang(text) {
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return text.replace(/^#!([^\r\n]+)/u, (_, captured) => `//${captured}`);
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}
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/** @type {import('./parse').default} */
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exports.default = function parse(path, content, context) {
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if (context == null) { throw new Error('need context to parse properly'); }
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// ESLint in "flat" mode only sets context.languageOptions.parserOptions
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let parserOptions = context.languageOptions && context.languageOptions.parserOptions || context.parserOptions;
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const parserOrPath = getParser(path, context);
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if (!parserOrPath) { throw new Error('parserPath or languageOptions.parser is required!'); }
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// hack: espree blows up with frozen options
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parserOptions = Object.assign({}, parserOptions);
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parserOptions.ecmaFeatures = Object.assign({}, parserOptions.ecmaFeatures);
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// always include comments and tokens (for doc parsing)
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parserOptions.comment = true;
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parserOptions.attachComment = true; // keeping this for backward-compat with older parsers
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parserOptions.tokens = true;
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// attach node locations
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parserOptions.loc = true;
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parserOptions.range = true;
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// provide the `filePath` like eslint itself does, in `parserOptions`
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// https://github.com/eslint/eslint/blob/3ec436ee/lib/linter.js#L637
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parserOptions.filePath = path;
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// @typescript-eslint/parser will parse the entire project with typechecking if you provide
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// "project" or "projects" in parserOptions. Removing these options means the parser will
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// only parse one file in isolate mode, which is much, much faster.
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// https://github.com/import-js/eslint-plugin-import/issues/1408#issuecomment-509298962
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delete parserOptions.EXPERIMENTAL_useProjectService;
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delete parserOptions.project;
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delete parserOptions.projects;
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// require the parser relative to the main module (i.e., ESLint)
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const parser = typeof parserOrPath === 'string' ? moduleRequire(parserOrPath) : parserOrPath;
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// replicate bom strip and hashbang transform of ESLint
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// https://github.com/eslint/eslint/blob/b93af98b3c417225a027cabc964c38e779adb945/lib/linter/linter.js#L779
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content = transformHashbang(stripUnicodeBOM(String(content)));
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if (typeof parser.parseForESLint === 'function') {
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let ast;
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try {
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const parserRaw = parser.parseForESLint(content, parserOptions);
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ast = parserRaw.ast;
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// @ts-expect-error TODO: FIXME
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return makeParseReturn(ast, keysFromParser(parserOrPath, parser, parserRaw));
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} catch (e) {
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console.warn();
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console.warn('Error while parsing ' + parserOptions.filePath);
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// @ts-expect-error e is almost certainly an Error here
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console.warn('Line ' + e.lineNumber + ', column ' + e.column + ': ' + e.message);
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}
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if (!ast || typeof ast !== 'object') {
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console.warn(
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// Can only be invalid for custom parser per imports/parser
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'`parseForESLint` from parser `' + (typeof parserOrPath === 'string' ? parserOrPath : '`context.languageOptions.parser`') + '` is invalid and will just be ignored'
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);
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} else {
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// @ts-expect-error TODO: FIXME
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return makeParseReturn(ast, keysFromParser(parserOrPath, parser, undefined));
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}
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}
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const ast = parser.parse(content, parserOptions);
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// @ts-expect-error TODO: FIXME
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return makeParseReturn(ast, keysFromParser(parserOrPath, parser, undefined));
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};
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/** @type {(path: string, context: import('eslint').Rule.RuleContext) => string | null | (import('eslint').Linter.ParserModule)} */
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function getParser(path, context) {
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const parserPath = getParserPath(path, context);
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if (parserPath) {
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return parserPath;
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}
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if (
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!!context.languageOptions
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&& !!context.languageOptions.parser
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&& typeof context.languageOptions.parser !== 'string'
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&& (
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// @ts-expect-error TODO: figure out a better type
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typeof context.languageOptions.parser.parse === 'function'
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// @ts-expect-error TODO: figure out a better type
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|| typeof context.languageOptions.parser.parseForESLint === 'function'
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)
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) {
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return context.languageOptions.parser;
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}
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return null;
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}
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/** @type {(path: string, context: import('eslint').Rule.RuleContext & { settings?: ESLintSettings }) => import('eslint').Rule.RuleContext['parserPath']} */
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function getParserPath(path, context) {
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const parsers = context.settings['import/parsers'];
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if (parsers != null) {
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// eslint-disable-next-line no-extra-parens
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const extension = /** @type {Extension} */ (extname(path));
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for (const parserPath in parsers) {
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if (parsers[parserPath].indexOf(extension) > -1) {
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// use this alternate parser
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log('using alt parser:', parserPath);
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return parserPath;
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}
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}
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}
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// default to use ESLint parser
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return context.parserPath;
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}
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