| 1 | "use strict";
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| 2 | // Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
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| 3 | // See LICENSE in the project root for license information.
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| 4 | var __importDefault = (this && this.__importDefault) || function (mod) {
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| 5 | return (mod && mod.__esModule) ? mod : { "default": mod };
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| 6 | };
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| 7 | Object.defineProperty(exports, "__esModule", { value: true });
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| 8 | exports.generatePatchedLinterJsFileIfDoesNotExist = generatePatchedLinterJsFileIfDoesNotExist;
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| 9 | const node_fs_1 = __importDefault(require("node:fs"));
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| 10 | const constants_1 = require("./constants");
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| 11 | /**
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| 12 | * Dynamically generate file to properly patch many versions of ESLint
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| 13 | * @param inputFilePath - Must be an iteration of https://github.com/eslint/eslint/blob/main/lib/linter/linter.js
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| 14 | * @param outputFilePath - Some small changes to linter.js
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| 15 | */
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| 16 | function generatePatchedLinterJsFileIfDoesNotExist(inputFilePath, outputFilePath, eslintPackageVersion) {
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| 17 | const generateEnvVarValue = process.env[constants_1.ESLINT_BULK_FORCE_REGENERATE_PATCH_ENV_VAR_NAME];
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| 18 | if (generateEnvVarValue !== 'true' && generateEnvVarValue !== '1' && node_fs_1.default.existsSync(outputFilePath)) {
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| 19 | return;
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| 20 | }
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| 21 | const [majorVersionString, minorVersionString] = eslintPackageVersion.split('.');
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| 22 | const majorVersion = parseInt(majorVersionString, 10);
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| 23 | const minorVersion = parseInt(minorVersionString, 10);
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| 24 | const inputFile = node_fs_1.default.readFileSync(inputFilePath).toString();
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| 25 | let inputIndex = 0;
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| 26 | /**
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| 27 | * Extract from the stream until marker is reached. When matching marker,
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| 28 | * ignore whitespace in the stream and in the marker. Return the extracted text.
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| 29 | */
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| 30 | function scanUntilMarker(marker) {
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| 31 | const trimmedMarker = marker.replace(/\s/g, '');
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| 32 | let output = '';
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| 33 | let trimmed = '';
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| 34 | while (inputIndex < inputFile.length) {
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| 35 | const char = inputFile[inputIndex++];
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| 36 | output += char;
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| 37 | if (!/^\s$/.test(char)) {
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| 38 | trimmed += char;
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| 39 | }
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| 40 | if (trimmed.endsWith(trimmedMarker)) {
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| 41 | return output;
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| 42 | }
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| 43 | }
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| 44 | throw new Error('Unexpected end of input while looking for ' + JSON.stringify(marker));
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| 45 | }
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| 46 | function scanUntilNewline() {
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| 47 | let output = '';
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| 48 | while (inputIndex < inputFile.length) {
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| 49 | const char = inputFile[inputIndex++];
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| 50 | output += char;
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| 51 | if (char === '\n') {
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| 52 | return output;
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| 53 | }
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| 54 | }
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| 55 | throw new Error('Unexpected end of input while looking for new line');
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| 56 | }
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| 57 | function scanUntilEnd() {
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| 58 | const output = inputFile.substring(inputIndex);
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| 59 | inputIndex = inputFile.length;
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| 60 | return output;
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| 61 | }
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| 62 | const markerForStartOfClassMethodSpaces = '\n */\n ';
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| 63 | const markerForStartOfClassMethodTabs = '\n\t */\n\t';
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| 64 | function indexOfStartOfClassMethod(input, position) {
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| 65 | let startOfClassMethodIndex = input.indexOf(markerForStartOfClassMethodSpaces, position);
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| 66 | if (startOfClassMethodIndex === -1) {
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| 67 | startOfClassMethodIndex = input.indexOf(markerForStartOfClassMethodTabs, position);
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| 68 | if (startOfClassMethodIndex === -1) {
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| 69 | return { index: startOfClassMethodIndex };
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| 70 | }
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| 71 | return { index: startOfClassMethodIndex, marker: markerForStartOfClassMethodTabs };
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| 72 | }
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| 73 | return { index: startOfClassMethodIndex, marker: markerForStartOfClassMethodSpaces };
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| 74 | }
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| 75 | /**
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| 76 | * Returns index of next public method
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| 77 | * @param fromIndex - index of inputFile to search if public method still exists
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| 78 | * @returns -1 if public method does not exist or index of next public method
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| 79 | */
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| 80 | function getIndexOfNextMethod(fromIndex) {
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| 81 | const rest = inputFile.substring(fromIndex);
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| 82 | const endOfClassIndex = rest.indexOf('\n}');
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| 83 | const { index: startOfClassMethodIndex, marker: startOfClassMethodMarker } = indexOfStartOfClassMethod(rest);
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| 84 | if (startOfClassMethodIndex === -1 ||
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| 85 | !startOfClassMethodMarker ||
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| 86 | startOfClassMethodIndex > endOfClassIndex) {
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| 87 | return { index: -1 };
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| 88 | }
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| 89 | const afterMarkerIndex = startOfClassMethodIndex + startOfClassMethodMarker.length;
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| 90 | const isPublicMethod = rest[afterMarkerIndex] !== '_' &&
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| 91 | rest[afterMarkerIndex] !== '#' &&
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| 92 | !rest.substring(afterMarkerIndex, rest.indexOf('\n', afterMarkerIndex)).includes('static') &&
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| 93 | !rest.substring(afterMarkerIndex, rest.indexOf('\n', afterMarkerIndex)).includes('constructor');
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| 94 | return { index: fromIndex + afterMarkerIndex, isPublic: isPublicMethod };
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| 95 | }
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| 96 | function scanUntilIndex(indexToScanTo) {
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| 97 | const output = inputFile.substring(inputIndex, indexToScanTo);
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| 98 | inputIndex = indexToScanTo;
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| 99 | return output;
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| 100 | }
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| 101 | let outputFile = '';
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| 102 | // Match this:
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| 103 | // //------------------------------------------------------------------------------
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| 104 | // // Requirements
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| 105 | // //------------------------------------------------------------------------------
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| 106 | outputFile += scanUntilMarker('// Requirements');
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| 107 | outputFile += scanUntilMarker('//--');
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| 108 | outputFile += scanUntilNewline();
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| 109 | outputFile += `
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| 110 | // --- BEGIN MONKEY PATCH ---
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| 111 | const bulkSuppressionsPatch = require(process.env.${constants_1.ESLINT_BULK_PATCH_PATH_ENV_VAR_NAME});
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| 112 | const requireFromPathToLinterJS = bulkSuppressionsPatch.requireFromPathToLinterJS;
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| 113 | `;
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| 114 | // Match this:
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| 115 | // //------------------------------------------------------------------------------
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| 116 | // // Typedefs
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| 117 | // //------------------------------------------------------------------------------
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| 118 | const requireSection = scanUntilMarker('// Typedefs');
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| 119 | // Match something like this:
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| 120 | //
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| 121 | // const path = require('path'),
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| 122 | // eslintScope = require('eslint-scope'),
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| 123 | // evk = require('eslint-visitor-keys'),
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| 124 | //
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| 125 | // Convert to something like this:
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| 126 | //
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| 127 | // const path = require('path'),
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| 128 | // eslintScope = requireFromPathToLinterJS('eslint-scope'),
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| 129 | // evk = requireFromPathToLinterJS('eslint-visitor-keys'),
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| 130 | //
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| 131 | outputFile += requireSection.replace(/require\s*\((?:'([^']+)'|"([^"]+)")\)/g, (match, p1, p2) => {
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| 132 | var _a;
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| 133 | const importPath = (_a = p1 !== null && p1 !== void 0 ? p1 : p2) !== null && _a !== void 0 ? _a : '';
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| 134 | if (importPath !== 'path') {
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| 135 | if (p1) {
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| 136 | return `requireFromPathToLinterJS('${p1}')`;
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| 137 | }
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| 138 | if (p2) {
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| 139 | return `requireFromPathToLinterJS("${p2}")`;
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| 140 | }
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| 141 | }
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| 142 | // Keep as-is
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| 143 | return match;
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| 144 | });
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| 145 | outputFile += `--- END MONKEY PATCH ---
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| 146 | `;
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| 147 | if (majorVersion >= 9) {
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| 148 | if (minorVersion >= 37) {
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| 149 | outputFile += scanUntilMarker('const visitor = new SourceCodeVisitor();');
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| 150 | }
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| 151 | else {
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| 152 | outputFile += scanUntilMarker('const emitter = createEmitter();');
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| 153 | }
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| 154 | outputFile += `
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| 155 | // --- BEGIN MONKEY PATCH ---
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| 156 | let currentNode = undefined;
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| 157 | // --- END MONKEY PATCH ---`;
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| 158 | }
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| 159 | // Match this (9.25.1):
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| 160 | // ```
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| 161 | // if (reportTranslator === null) {
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| 162 | // reportTranslator = createReportTranslator({
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| 163 | // ruleId,
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| 164 | // severity,
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| 165 | // sourceCode,
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| 166 | // messageIds,
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| 167 | // disableFixes
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| 168 | // });
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| 169 | // }
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| 170 | // const problem = reportTranslator(...args);
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| 171 | //
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| 172 | // if (problem.fix && !(rule.meta && rule.meta.fixable)) {
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| 173 | // throw new Error("Fixable rules must set the `meta.fixable` property to \"code\" or \"whitespace\".");
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| 174 | // }
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| 175 | // ```
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| 176 | // Or this (9.37.0):
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| 177 | // ```
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| 178 | // const problem = report.addRuleMessage(
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| 179 | // ruleId,
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| 180 | // severity,
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| 181 | // ...args,
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| 182 | // );
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| 183 | //
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| 184 | // if (problem.fix && !(rule.meta && rule.meta.fixable)) {
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| 185 | // throw new Error(
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| 186 | // 'Fixable rules must set the `meta.fixable` property to "code" or "whitespace".',
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| 187 | // );
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| 188 | // }
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| 189 | // ```
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| 190 | //
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| 191 | // Convert to something like this (9.25.1):
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| 192 | // ```
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| 193 | // if (reportTranslator === null) {
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| 194 | // reportTranslator = createReportTranslator({
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| 195 | // ruleId,
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| 196 | // severity,
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| 197 | // sourceCode,
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| 198 | // messageIds,
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| 199 | // disableFixes
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| 200 | // });
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| 201 | // }
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| 202 | // const problem = reportTranslator(...args);
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| 203 | // // --- BEGIN MONKEY PATCH ---
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| 204 | // if (bulkSuppressionsPatch.shouldBulkSuppress({ filename, currentNode: args[0]?.node ?? currentNode, ruleId, problem })) return;
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| 205 | // // --- END MONKEY PATCH ---
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| 206 | //
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| 207 | // if (problem.fix && !(rule.meta && rule.meta.fixable)) {
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| 208 | // throw new Error("Fixable rules must set the `meta.fixable` property to \"code\" or \"whitespace\".");
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| 209 | // }
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| 210 | // ```
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| 211 | // Or this (9.37.0):
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| 212 | // ```
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| 213 | // const problem = report.addRuleMessage(
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| 214 | // ruleId,
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| 215 | // severity,
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| 216 | // ...args,
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| 217 | // );
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| 218 | // // --- BEGIN MONKEY PATCH ---
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| 219 | // if (bulkSuppressionsPatch.shouldBulkSuppress({ filename, currentNode: args[0]?.node ?? currentNode, ruleId, problem })) return;
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| 220 | // // --- END MONKEY PATCH ---
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| 221 | //
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| 222 | // if (problem.fix && !(rule.meta && rule.meta.fixable)) {
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| 223 | // throw new Error(
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| 224 | // 'Fixable rules must set the `meta.fixable` property to "code" or "whitespace".',
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| 225 | // );
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| 226 | // }
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| 227 | // ```
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| 228 | if (majorVersion > 9 || (majorVersion === 9 && minorVersion >= 37)) {
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| 229 | outputFile += scanUntilMarker('const problem = report.addRuleMessage(');
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| 230 | outputFile += scanUntilMarker('ruleId,');
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| 231 | outputFile += scanUntilMarker('severity,');
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| 232 | outputFile += scanUntilMarker('...args,');
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| 233 | outputFile += scanUntilMarker(');');
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| 234 | }
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| 235 | else {
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| 236 | outputFile += scanUntilMarker('const problem = reportTranslator(...args);');
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| 237 | }
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| 238 | outputFile += `
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| 239 | // --- BEGIN MONKEY PATCH ---`;
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| 240 | if (majorVersion > 9 || (majorVersion === 9 && minorVersion >= 37)) {
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| 241 | outputFile += `
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| 242 | if (bulkSuppressionsPatch.shouldBulkSuppress({ filename, currentNode: args[0]?.node ?? currentNode, ruleId, problem })) {
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| 243 | problem.suppressions ??= []; problem.suppressions.push({kind:"bulk",justification:""});
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| 244 | }`;
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| 245 | }
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| 246 | else {
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| 247 | outputFile += `
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| 248 | if (bulkSuppressionsPatch.shouldBulkSuppress({ filename, currentNode: args[0]?.node ?? currentNode, ruleId, problem })) return;`;
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| 249 | }
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| 250 | outputFile += `
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| 251 | // --- END MONKEY PATCH ---`;
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| 252 | //
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| 253 | // Match this:
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| 254 | // ```
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| 255 | // Object.keys(ruleListeners).forEach(selector => {
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| 256 | // ...
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| 257 | // });
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| 258 | // ```
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| 259 | //
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| 260 | // Convert to something like this (9.25.1):
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| 261 | // ```
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| 262 | // Object.keys(ruleListeners).forEach(selector => {
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| 263 | // // --- BEGIN MONKEY PATCH ---
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| 264 | // emitter.on(selector, (...args) => { currentNode = args[args.length - 1]; });
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| 265 | // // --- END MONKEY PATCH ---
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| 266 | // ...
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| 267 | // });
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| 268 | // ```
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| 269 | // Or this (9.37.0):
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| 270 | // ```
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| 271 | // Object.keys(ruleListeners).forEach(selector => {
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| 272 | // // --- BEGIN MONKEY PATCH ---
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| 273 | // visitor.add(selector, (...args) => { currentNode = args[args.length - 1]; });
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| 274 | // // --- END MONKEY PATCH ---
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| 275 | // ...
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| 276 | // });
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| 277 | // ```
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| 278 | if (majorVersion >= 9) {
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| 279 | outputFile += scanUntilMarker('Object.keys(ruleListeners).forEach(selector => {');
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| 280 | outputFile += `
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| 281 | // --- BEGIN MONKEY PATCH ---
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| 282 | `;
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| 283 | if (minorVersion >= 37) {
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| 284 | outputFile += `visitor.add(selector, (...args) => { currentNode = args[args.length - 1]; });`;
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| 285 | }
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| 286 | else {
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| 287 | outputFile += `emitter.on(selector, (...args) => { currentNode = args[args.length - 1]; });`;
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| 288 | }
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| 289 | outputFile += `
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| 290 | // --- END MONKEY PATCH ---`;
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| 291 | }
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| 292 | outputFile += scanUntilMarker('class Linter {');
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| 293 | outputFile += scanUntilNewline();
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| 294 | outputFile += `
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| 295 | // --- BEGIN MONKEY PATCH ---
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| 296 | /**
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| 297 | * We intercept ESLint execution at the .eslintrc.js file, but unfortunately the Linter class is
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| 298 | * initialized before the .eslintrc.js file is executed. This means the internalSlotsMap that all
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| 299 | * the patched methods refer to is not initialized. This method checks if the internalSlotsMap is
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| 300 | * initialized, and if not, initializes it.
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| 301 | */
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| 302 | _conditionallyReinitialize({ cwd, configType } = {}) {
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| 303 | if (internalSlotsMap.get(this) === undefined) {
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| 304 | internalSlotsMap.set(this, {
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| 305 | cwd: normalizeCwd(cwd),
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| 306 | flags: [],
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| 307 | lastConfigArray: null,
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| 308 | lastSourceCode: null,
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| 309 | lastSuppressedMessages: [],
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| 310 | configType, // TODO: Remove after flat config conversion
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| 311 | parserMap: new Map([['espree', espree]]),
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| 312 | ruleMap: new Rules()
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| 313 | });
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| 314 |
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| 315 | this.version = pkg.version;
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| 316 | }
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| 317 | }
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| 318 | // --- END MONKEY PATCH ---
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| 319 | `;
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| 320 | const privateMethodNames = [];
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| 321 | let { index: indexOfNextMethod, isPublic } = getIndexOfNextMethod(inputIndex);
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| 322 | while (indexOfNextMethod !== -1) {
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| 323 | outputFile += scanUntilIndex(indexOfNextMethod);
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| 324 | if (isPublic) {
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| 325 | // Inject the monkey patch at the start of the public method
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| 326 | outputFile += scanUntilNewline();
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| 327 | outputFile += ` // --- BEGIN MONKEY PATCH ---
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| 328 | this._conditionallyReinitialize();
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| 329 | // --- END MONKEY PATCH ---
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| 330 | `;
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| 331 | }
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| 332 | else if (inputFile[inputIndex] === '#') {
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| 333 | // Replace the '#' private method with a '_' private method, so that our monkey patch
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| 334 | // can still call it. Otherwise, we get the following error during execution:
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| 335 | // TypeError: Receiver must be an instance of class Linter
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| 336 | const privateMethodName = scanUntilMarker('(');
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| 337 | // Remove the '(' at the end and stash it, since we need to escape it for the regex later
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| 338 | privateMethodNames.push(privateMethodName.slice(0, -1));
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| 339 | outputFile += `_${privateMethodName.slice(1)}`;
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| 340 | }
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| 341 | const indexResult = getIndexOfNextMethod(inputIndex);
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| 342 | indexOfNextMethod = indexResult.index;
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| 343 | isPublic = indexResult.isPublic;
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| 344 | }
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| 345 | outputFile += scanUntilEnd();
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| 346 | // Do a second pass to find and replace all calls to private methods with the patched versions.
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| 347 | if (privateMethodNames.length) {
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| 348 | const privateMethodCallRegex = new RegExp(`\.(${privateMethodNames.join('|')})\\(`, 'g');
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| 349 | outputFile = outputFile.replace(privateMethodCallRegex, (match, privateMethodName) => {
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| 350 | // Replace the leading '#' with a leading '_'
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| 351 | return `._${privateMethodName.slice(1)}(`;
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| 352 | });
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| 353 | }
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| 354 | node_fs_1.default.writeFileSync(outputFilePath, outputFile);
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| 355 | }
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| 356 | //# sourceMappingURL=generate-patched-file.js.map |
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