source: imaps-frontend/node_modules/webpack/lib/DelegatedModuleFactoryPlugin.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Tobias Koppers @sokra
*/

"use strict";

const DelegatedModule = require("./DelegatedModule");

/** @typedef {import("../declarations/plugins/DllReferencePlugin").DllReferencePluginOptions} DllReferencePluginOptions */
/** @typedef {import("../declarations/plugins/DllReferencePlugin").DllReferencePluginOptionsContent} DllReferencePluginOptionsContent */
/** @typedef {import("./DelegatedModule").Data} Data */
/** @typedef {import("./DelegatedModule").SourceRequest} SourceRequest */
/** @typedef {import("./DelegatedModule").Type} Type */
/** @typedef {import("./NormalModuleFactory")} NormalModuleFactory */

/**
 * @typedef {object} Options
 * @property {SourceRequest} source source
 * @property {NonNullable<DllReferencePluginOptions["context"]>} context absolute context path to which lib ident is relative to
 * @property {DllReferencePluginOptionsContent} content content
 * @property {DllReferencePluginOptions["type"]} type type
 * @property {DllReferencePluginOptions["extensions"]} extensions extensions
 * @property {DllReferencePluginOptions["scope"]} scope scope
 * @property {object=} associatedObjectForCache object for caching
 */

class DelegatedModuleFactoryPlugin {
        /**
         * @param {Options} options options
         */
        constructor(options) {
                this.options = options;
                options.type = options.type || "require";
                options.extensions = options.extensions || ["", ".js", ".json", ".wasm"];
        }

        /**
         * @param {NormalModuleFactory} normalModuleFactory the normal module factory
         * @returns {void}
         */
        apply(normalModuleFactory) {
                const scope = this.options.scope;
                if (scope) {
                        normalModuleFactory.hooks.factorize.tapAsync(
                                "DelegatedModuleFactoryPlugin",
                                (data, callback) => {
                                        const [dependency] = data.dependencies;
                                        const { request } = dependency;
                                        if (request && request.startsWith(`${scope}/`)) {
                                                const innerRequest = `.${request.slice(scope.length)}`;
                                                let resolved;
                                                if (innerRequest in this.options.content) {
                                                        resolved = this.options.content[innerRequest];
                                                        return callback(
                                                                null,
                                                                new DelegatedModule(
                                                                        this.options.source,
                                                                        resolved,
                                                                        /** @type {Type} */ (this.options.type),
                                                                        innerRequest,
                                                                        request
                                                                )
                                                        );
                                                }
                                                const extensions =
                                                        /** @type {string[]} */
                                                        (this.options.extensions);
                                                for (let i = 0; i < extensions.length; i++) {
                                                        const extension = extensions[i];
                                                        const requestPlusExt = innerRequest + extension;
                                                        if (requestPlusExt in this.options.content) {
                                                                resolved = this.options.content[requestPlusExt];
                                                                return callback(
                                                                        null,
                                                                        new DelegatedModule(
                                                                                this.options.source,
                                                                                resolved,
                                                                                /** @type {Type} */ (this.options.type),
                                                                                requestPlusExt,
                                                                                request + extension
                                                                        )
                                                                );
                                                        }
                                                }
                                        }
                                        return callback();
                                }
                        );
                } else {
                        normalModuleFactory.hooks.module.tap(
                                "DelegatedModuleFactoryPlugin",
                                module => {
                                        const request = module.libIdent(this.options);
                                        if (request && request in this.options.content) {
                                                const resolved = this.options.content[request];
                                                return new DelegatedModule(
                                                        this.options.source,
                                                        resolved,
                                                        /** @type {Type} */ (this.options.type),
                                                        request,
                                                        module
                                                );
                                        }
                                        return module;
                                }
                        );
                }
        }
}
module.exports = DelegatedModuleFactoryPlugin;