Yu Cong
44db9807a1
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474 lines
15 KiB
JavaScript
474 lines
15 KiB
JavaScript
import globals from "globals";
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import import_ from "eslint-plugin-import";
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import jasmine from "eslint-plugin-jasmine";
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import json from "eslint-plugin-json";
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import noUnsanitized from "eslint-plugin-no-unsanitized";
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import perfectionist from "eslint-plugin-perfectionist";
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import prettierRecommended from "eslint-plugin-prettier/recommended";
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import unicorn from "eslint-plugin-unicorn";
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const jsFiles = folder => {
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const prefix = folder === "." ? "" : folder + "/";
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return [prefix + "**/*.js", prefix + "**/*.jsm", prefix + "**/*.mjs"];
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};
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// Include all files referenced in extensions/chromium/background.js
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const chromiumExtensionServiceWorkerFiles = [
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"extensions/chromium/extension-router.js",
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"extensions/chromium/options/migration.js",
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"extensions/chromium/pdfHandler.js",
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"extensions/chromium/preserve-referer.js",
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"extensions/chromium/suppress-update.js",
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"extensions/chromium/telemetry.js",
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];
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export default [
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{
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ignores: [
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"**/build/",
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"**/l10n/",
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"**/docs/",
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"**/node_modules/",
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"external/bcmaps/",
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"external/builder/fixtures/",
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"external/builder/fixtures_babel/",
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"external/openjpeg/",
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"external/qcms/",
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"external/quickjs/",
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"test/stats/results/",
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"test/tmp/",
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"test/pdfs/",
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"web/locale/",
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"web/wasm/",
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"**/*~/",
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],
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},
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/* ======================================================================== *\
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Base configuration
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\* ======================================================================== */
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prettierRecommended,
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{
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files: ["**/*.json"],
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...json.configs.recommended,
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},
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{
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files: jsFiles("."),
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ignores: chromiumExtensionServiceWorkerFiles,
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languageOptions: {
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globals: globals.browser,
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},
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},
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{
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files: jsFiles("."),
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plugins: {
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import: import_.flatConfigs.recommended.plugins.import,
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json,
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"no-unsanitized": noUnsanitized,
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perfectionist,
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unicorn,
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},
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languageOptions: {
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globals: {
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...globals.worker,
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PDFJSDev: "readonly",
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__raw_import__: "readonly",
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},
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ecmaVersion: 2025,
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sourceType: "module",
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},
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rules: {
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"import/export": "error",
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"import/exports-last": "error",
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"import/extensions": ["error", "always", { ignorePackages: true }],
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"import/first": "error",
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"import/named": "error",
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"import/no-cycle": "error",
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"import/no-empty-named-blocks": "error",
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"import/no-commonjs": "error",
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"import/no-mutable-exports": "error",
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"import/no-restricted-paths": [
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"error",
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{
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zones: [
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{
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target: "./web",
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from: "./src",
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},
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],
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},
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],
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"import/no-self-import": "error",
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"import/no-unresolved": [
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"error",
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{
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ignore: [
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"display",
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"pdfjs",
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"pdfjs-lib",
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"pdfjs-web",
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"web",
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"fluent-bundle",
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"fluent-dom",
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// See https://github.com/firebase/firebase-admin-node/discussions/1359.
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"eslint-plugin-perfectionist",
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],
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},
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],
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"no-unsanitized/method": "error",
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"no-unsanitized/property": "error",
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"perfectionist/sort-exports": "error",
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"perfectionist/sort-named-exports": "error",
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"unicorn/no-abusive-eslint-disable": "error",
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"unicorn/no-array-reduce": ["error", { allowSimpleOperations: true }],
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"unicorn/no-console-spaces": "error",
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"unicorn/no-instanceof-builtins": "error",
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"unicorn/no-invalid-remove-event-listener": "error",
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"unicorn/no-new-buffer": "error",
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"unicorn/no-single-promise-in-promise-methods": "error",
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"unicorn/no-typeof-undefined": ["error", { checkGlobalVariables: false }],
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"unicorn/no-unnecessary-array-flat-depth": "error",
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"unicorn/no-unnecessary-array-splice-count": "error",
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"unicorn/no-unnecessary-slice-end": "error",
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"unicorn/no-useless-promise-resolve-reject": "error",
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"unicorn/no-useless-spread": "error",
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"unicorn/prefer-array-find": "error",
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"unicorn/prefer-array-flat": "error",
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"unicorn/prefer-array-flat-map": "error",
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"unicorn/prefer-array-index-of": "error",
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"unicorn/prefer-array-some": "error",
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"unicorn/prefer-at": "error",
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"unicorn/prefer-date-now": "error",
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"unicorn/prefer-dom-node-append": "error",
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"unicorn/prefer-dom-node-remove": "error",
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"unicorn/prefer-import-meta-properties": "error",
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"unicorn/prefer-includes": "error",
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"unicorn/prefer-logical-operator-over-ternary": "error",
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"unicorn/prefer-modern-dom-apis": "error",
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"unicorn/prefer-modern-math-apis": "error",
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"unicorn/prefer-negative-index": "error",
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"unicorn/prefer-optional-catch-binding": "error",
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"unicorn/prefer-regexp-test": "error",
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"unicorn/prefer-single-call": "error",
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"unicorn/prefer-string-replace-all": "error",
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"unicorn/prefer-string-starts-ends-with": "error",
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"unicorn/prefer-ternary": ["error", "only-single-line"],
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"unicorn/throw-new-error": "error",
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// Possible errors
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"for-direction": "error",
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"getter-return": "error",
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"no-async-promise-executor": "error",
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"no-cond-assign": ["error", "except-parens"],
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"no-constant-condition": ["error", { checkLoops: false }],
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"no-debugger": "error",
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"no-dupe-args": "error",
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"no-dupe-else-if": "error",
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"no-dupe-keys": "error",
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"no-duplicate-case": "error",
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"no-empty": ["error", { allowEmptyCatch: true }],
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"no-empty-character-class": "error",
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"no-ex-assign": "error",
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"no-extra-boolean-cast": "error",
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"no-func-assign": "error",
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"no-inner-declarations": ["error", "functions"],
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"no-invalid-regexp": "error",
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"no-irregular-whitespace": "error",
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"no-loss-of-precision": "error",
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"no-obj-calls": "error",
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"no-promise-executor-return": "error",
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"no-regex-spaces": "error",
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"no-setter-return": "error",
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"no-sparse-arrays": "error",
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"no-template-curly-in-string": "error",
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"no-unexpected-multiline": "error",
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"no-unreachable": "error",
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"no-unsafe-finally": "error",
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"no-unsafe-negation": "error",
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"no-unsafe-optional-chaining": [
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"error",
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{ disallowArithmeticOperators: true },
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],
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"no-unused-private-class-members": "error",
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"use-isnan": ["error", { enforceForIndexOf: true }],
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"valid-typeof": ["error", { requireStringLiterals: true }],
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// Best Practices
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"accessor-pairs": [
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"error",
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{ setWithoutGet: true, enforceForClassMembers: true },
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],
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"consistent-return": "error",
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curly: ["error", "all"],
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"default-case-last": "error",
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"dot-notation": "error",
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eqeqeq: ["error", "always"],
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"grouped-accessor-pairs": ["error", "getBeforeSet"],
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"no-alert": "error",
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"no-caller": "error",
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"no-else-return": "error",
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"no-empty-pattern": "error",
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"no-eval": "error",
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"no-extend-native": "error",
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"no-extra-bind": "error",
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"no-extra-label": "error",
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"no-fallthrough": "error",
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"no-floating-decimal": "error",
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"no-global-assign": "error",
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"no-implied-eval": "error",
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"no-iterator": "error",
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"no-lone-blocks": "error",
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"no-lonely-if": "error",
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"no-multi-str": "error",
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"no-new": "error",
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"no-new-func": "error",
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"no-new-symbol": "error",
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"no-new-wrappers": "error",
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"no-octal-escape": "error",
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"no-octal": "error",
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"no-redeclare": "error",
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"no-return-await": "error",
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"no-self-assign": "error",
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"no-self-compare": "error",
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"no-throw-literal": "error",
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"no-unused-expressions": "error",
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"no-unused-labels": "error",
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"no-useless-call": "error",
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"no-useless-catch": "error",
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"no-useless-concat": "error",
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"no-useless-escape": "error",
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"no-useless-return": "error",
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"prefer-promise-reject-errors": "error",
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"prefer-spread": "error",
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"wrap-iife": ["error", "any"],
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yoda: ["error", "never", { exceptRange: true }],
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// Strict Mode
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strict: ["off", "global"],
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// Variables
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"no-delete-var": "error",
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"no-label-var": "error",
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"no-shadow": "error",
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"no-shadow-restricted-names": "error",
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"no-undef-init": "error",
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"no-undef": ["error", { typeof: true }],
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"no-unused-vars": ["error", { vars: "all", args: "none" }],
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"no-use-before-define": [
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"error",
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{ functions: false, classes: false, variables: false },
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],
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// Stylistic Issues
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"lines-between-class-members": ["error", "always"],
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"max-len": ["error", { code: 1000, comments: 80, ignoreUrls: true }],
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"new-cap": ["error", { newIsCap: true, capIsNew: false }],
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"no-array-constructor": "error",
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"no-multiple-empty-lines": ["error", { max: 1, maxEOF: 0, maxBOF: 1 }],
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"no-nested-ternary": "error",
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"no-new-object": "error",
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"no-restricted-syntax": [
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"error",
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{
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selector:
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"BinaryExpression[operator='instanceof'][right.name='Object']",
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message: "Use `typeof` rather than `instanceof Object`.",
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},
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{
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selector: "CallExpression[callee.name='assert'][arguments.length!=2]",
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message: "`assert()` must always be invoked with two arguments.",
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},
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{
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selector: "CallExpression[callee.name='isCmd'][arguments.length<2]",
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message:
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"Use `instanceof Cmd` rather than `isCmd()` with one argument.",
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},
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{
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selector: "CallExpression[callee.name='isDict'][arguments.length<2]",
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message:
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"Use `instanceof Dict` rather than `isDict()` with one argument.",
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},
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{
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selector: "CallExpression[callee.name='isName'][arguments.length<2]",
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message:
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"Use `instanceof Name` rather than `isName()` with one argument.",
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},
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{
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selector: "NewExpression[callee.name='Cmd']",
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message: "Use `Cmd.get()` rather than `new Cmd()`.",
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},
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{
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selector: "NewExpression[callee.name='Name']",
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message: "Use `Name.get()` rather than `new Name()`.",
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},
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{
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selector: "NewExpression[callee.name='ObjectLoader']",
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message:
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"Use `ObjectLoader.load()` rather than `new ObjectLoader()`.",
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},
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{
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selector: "NewExpression[callee.name='Ref']",
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message: "Use `Ref.get()` rather than `new Ref()`.",
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},
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{
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selector: "ExportNamedDeclaration[declaration]",
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message:
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"Separate the declaration and the export statement, using `export { ... }`.",
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},
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{
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selector: "ExportDefaultDeclaration:has(> :declaration)",
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message:
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"Separate the declaration and the export statement, using `export default <variable name>`.",
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},
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],
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"no-unneeded-ternary": "error",
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"operator-assignment": "error",
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"prefer-exponentiation-operator": "error",
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"spaced-comment": ["error", "always", { block: { balanced: true } }],
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// ECMAScript 6
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"arrow-body-style": ["error", "as-needed"],
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"constructor-super": "error",
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"no-class-assign": "error",
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"no-const-assign": "error",
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"no-dupe-class-members": "error",
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"no-duplicate-imports": "error",
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"no-this-before-super": "error",
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"no-useless-computed-key": "error",
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"no-useless-constructor": "error",
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"no-useless-rename": "error",
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"no-var": "error",
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"object-shorthand": ["error", "always", { avoidQuotes: true }],
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"prefer-const": "error",
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"require-yield": "error",
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"sort-imports": ["error", { ignoreCase: true }],
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"template-curly-spacing": ["error", "never"],
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},
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},
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{
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files: jsFiles("src"),
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rules: {
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"no-console": "error",
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},
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},
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/* ======================================================================== *\
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Test-specific rules
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\* ======================================================================== */
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{
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files: jsFiles("test"),
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plugins: { jasmine },
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languageOptions: {
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globals: {
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...globals.node,
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...globals.jasmine,
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},
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},
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rules: {
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...jasmine.configs.recommended.rules,
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"jasmine/new-line-before-expect": "off",
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"jasmine/new-line-between-declarations": "off",
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"jasmine/no-focused-tests": "error",
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"jasmine/no-pending-tests": "off",
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"jasmine/no-spec-dupes": ["error", "branch"],
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"jasmine/no-suite-dupes": ["error", "branch"],
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"jasmine/prefer-jasmine-matcher": "off",
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"jasmine/prefer-toHaveBeenCalledWith": "off",
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},
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},
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{
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files: jsFiles("test/unit"),
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rules: {
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"import/no-unresolved": ["error", { ignore: ["pdfjs/"] }],
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"no-console": ["error", { allow: ["warn", "error"] }],
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},
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},
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{
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files: jsFiles("test/integration"),
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rules: {
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"no-console": ["error", { allow: ["warn", "error"] }],
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"no-restricted-syntax": [
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"error",
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{
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selector: "CallExpression[callee.name='waitForTimeout']",
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message:
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"`waitForTimeout` can cause intermittent failures and should not be used (see issue #17656 for replacements).",
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},
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],
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},
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},
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/* ======================================================================== *\
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External libraries
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\* ======================================================================== */
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{
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files: jsFiles("external"),
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languageOptions: { globals: globals.node },
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},
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/* ======================================================================== *\
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Examples
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\* ======================================================================== */
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{
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files: jsFiles("examples"),
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languageOptions: {
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globals: {
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pdfjsImageDecoders: false,
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pdfjsLib: false,
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pdfjsViewer: false,
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},
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},
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},
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{
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files: [...jsFiles("examples/node"), ...jsFiles("examples/webpack")],
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languageOptions: { globals: globals.node },
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},
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/* ======================================================================== *\
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Chromium extension
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\* ======================================================================== */
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{
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files: jsFiles("extensions/chromium"),
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languageOptions: {
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globals: globals.webextensions,
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sourceType: "script",
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},
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rules: {
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"no-var": "off",
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},
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},
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{
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files: chromiumExtensionServiceWorkerFiles,
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languageOptions: {
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globals: globals.serviceworker,
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sourceType: "script",
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},
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},
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/* ======================================================================== *\
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Other
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\* ======================================================================== */
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{
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files: ["gulpfile.mjs"],
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languageOptions: { globals: globals.node },
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},
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];
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