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tahamajs/Other_Lessons / AP /TA_1 /AP-ECE-UT.github.io /node_modules /webpack /lib /LoaderOptionsPlugin.js
| /* | |
| MIT License http://www.opensource.org/licenses/mit-license.php | |
| Author Tobias Koppers @sokra | |
| */ | |
| ; | |
| const ModuleFilenameHelpers = require("./ModuleFilenameHelpers"); | |
| const NormalModule = require("./NormalModule"); | |
| const createSchemaValidation = require("./util/create-schema-validation"); | |
| /** @typedef {import("../declarations/plugins/LoaderOptionsPlugin").LoaderOptionsPluginOptions} LoaderOptionsPluginOptions */ | |
| /** @typedef {import("./Compiler")} Compiler */ | |
| /** @typedef {import("./ModuleFilenameHelpers").MatchObject} MatchObject */ | |
| const validate = createSchemaValidation( | |
| require("../schemas/plugins/LoaderOptionsPlugin.check.js"), | |
| () => require("../schemas/plugins/LoaderOptionsPlugin.json"), | |
| { | |
| name: "Loader Options Plugin", | |
| baseDataPath: "options" | |
| } | |
| ); | |
| class LoaderOptionsPlugin { | |
| /** | |
| * @param {LoaderOptionsPluginOptions & MatchObject} options options object | |
| */ | |
| constructor(options = {}) { | |
| validate(options); | |
| // If no options are set then generate empty options object | |
| if (typeof options !== "object") options = {}; | |
| if (!options.test) { | |
| // This is mocking a RegExp object which always returns true | |
| // TODO: Figure out how to do `as unknown as RegExp` for this line | |
| // in JSDoc equivalent | |
| /** @type {any} */ | |
| const defaultTrueMockRegExp = { | |
| test: () => true | |
| }; | |
| /** @type {RegExp} */ | |
| options.test = defaultTrueMockRegExp; | |
| } | |
| this.options = options; | |
| } | |
| /** | |
| * Apply the plugin | |
| * @param {Compiler} compiler the compiler instance | |
| * @returns {void} | |
| */ | |
| apply(compiler) { | |
| const options = this.options; | |
| compiler.hooks.compilation.tap("LoaderOptionsPlugin", compilation => { | |
| NormalModule.getCompilationHooks(compilation).loader.tap( | |
| "LoaderOptionsPlugin", | |
| (context, module) => { | |
| const resource = module.resource; | |
| if (!resource) return; | |
| const i = resource.indexOf("?"); | |
| if ( | |
| ModuleFilenameHelpers.matchObject( | |
| options, | |
| i < 0 ? resource : resource.slice(0, i) | |
| ) | |
| ) { | |
| for (const key of Object.keys(options)) { | |
| if (key === "include" || key === "exclude" || key === "test") { | |
| continue; | |
| } | |
| context[key] = options[key]; | |
| } | |
| } | |
| } | |
| ); | |
| }); | |
| } | |
| } | |
| module.exports = LoaderOptionsPlugin; | |
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