mirror of https://github.com/webpack/webpack.git
123 lines
3.0 KiB
JavaScript
123 lines
3.0 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const { RawSource } = require("webpack-sources");
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const Module = require("./Module");
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/** @typedef {import("webpack-sources").Source} Source */
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/** @typedef {import("./Compilation")} Compilation */
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/** @typedef {import("./DependencyTemplates")} DependencyTemplates */
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/** @typedef {import("./RequestShortener")} RequestShortener */
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/** @typedef {import("./RuntimeTemplate")} RuntimeTemplate */
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/** @typedef {import("./util/createHash").Hash} Hash */
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class MultiModule extends Module {
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constructor(context, dependencies, name) {
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super("javascript/dynamic", context);
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// Info from Factory
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this.dependencies = dependencies;
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this.name = name;
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this._identifier = `multi ${this.dependencies
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.map(d => d.request)
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.join(" ")}`;
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}
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/**
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* @returns {string} a unique identifier of the module
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*/
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identifier() {
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return this._identifier;
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}
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/**
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* @param {RequestShortener} requestShortener the request shortener
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* @returns {string} a user readable identifier of the module
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*/
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readableIdentifier(requestShortener) {
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return `multi ${this.dependencies
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.map(d => requestShortener.shorten(d.request))
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.join(" ")}`;
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}
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/**
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* @param {TODO} options TODO
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* @param {Compilation} compilation the compilation
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* @param {TODO} resolver TODO
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* @param {TODO} fs the file system
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* @param {function(Error=): void} callback callback function
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* @returns {void}
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*/
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build(options, compilation, resolver, fs, callback) {
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this.built = true;
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this.buildMeta = {};
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this.buildInfo = {};
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return callback();
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}
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/**
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* @param {TODO} fileTimestamps timestamps of files
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* @param {TODO} contextTimestamps timestamps of directories
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* @returns {boolean} true, if the module needs a rebuild
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*/
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needRebuild(fileTimestamps, contextTimestamps) {
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return false;
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}
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/**
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* @returns {number} the estimated size of the module
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*/
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size() {
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return 16 + this.dependencies.length * 12;
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}
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/**
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* @param {Hash} hash the hash used to track dependencies
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* @returns {void}
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*/
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updateHash(hash) {
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hash.update("multi module");
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hash.update(this.name || "");
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super.updateHash(hash);
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}
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/**
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* @param {DependencyTemplates} dependencyTemplates the dependency templates
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* @param {RuntimeTemplate} runtimeTemplate the runtime template
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* @param {string=} type the type of source that should be returned
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* @returns {Source} generated source
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*/
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source(dependencyTemplates, runtimeTemplate, type) {
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const str = [];
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let idx = 0;
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for (const dep of this.dependencies) {
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if (dep.module) {
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if (idx === this.dependencies.length - 1) {
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str.push("module.exports = ");
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}
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str.push(
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runtimeTemplate.moduleRaw({
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module: dep.module,
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request: dep.request
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})
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);
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} else {
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str.push(
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runtimeTemplate.missingModule({
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request: dep.request
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})
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);
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}
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str.push(";\n");
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idx++;
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}
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return new RawSource(str.join(""));
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}
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}
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module.exports = MultiModule;
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