webpack/lib/MultiModule.js

88 lines
1.9 KiB
JavaScript

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const Module = require("./Module");
const Template = require("./Template");
const { RawSource } = require("webpack-sources");
/** @typedef {import("./util/createHash").Hash} Hash */
class MultiModule extends Module {
constructor(context, dependencies, name) {
super("javascript/dynamic", context);
// Info from Factory
this.dependencies = dependencies;
this.name = name;
this._identifier = `multi ${this.dependencies
.map(d => d.request)
.join(" ")}`;
}
identifier() {
return this._identifier;
}
readableIdentifier(requestShortener) {
return `multi ${this.dependencies
.map(d => requestShortener.shorten(d.request))
.join(" ")}`;
}
build(options, compilation, resolver, fs, callback) {
this.built = true;
this.buildMeta = {};
this.buildInfo = {};
return callback();
}
needRebuild() {
return false;
}
size() {
return 16 + this.dependencies.length * 12;
}
/**
* @param {Hash} hash the hash used to track dependencies
* @returns {void}
*/
updateHash(hash) {
hash.update("multi module");
hash.update(this.name || "");
super.updateHash(hash);
}
source(dependencyTemplates, runtimeTemplate) {
const str = [];
let idx = 0;
for (const dep of this.dependencies) {
if (dep.module) {
if (idx === this.dependencies.length - 1) {
str.push("module.exports = ");
}
str.push("__webpack_require__(");
if (runtimeTemplate.outputOptions.pathinfo) {
str.push(Template.toComment(dep.request));
}
str.push(`${JSON.stringify(dep.module.id)}`);
str.push(")");
} else {
const content = require("./dependencies/WebpackMissingModule").module(
dep.request
);
str.push(content);
}
str.push(";\n");
idx++;
}
return new RawSource(str.join(""));
}
}
module.exports = MultiModule;