webpack/lib/MultiModule.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jade, coffee, css, less, ... and your custom stuff.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
var Module = require("./Module");
var RawSource = require("webpack-core/lib/RawSource");

function MultiModule(context, dependencies, name) {
	Module.call(this);
	this.context = context;
	this.dependencies = dependencies;
	this.name = name;
	this.built = false;
	this.cacheable = true;
}
module.exports = MultiModule;

MultiModule.prototype = Object.create(Module.prototype);

MultiModule.prototype.identifier = function() {
	return "multi " + this.name;
};

MultiModule.prototype.readableIdentifier = function(requestShortener) {
	return "multi " + this.name;
};

MultiModule.prototype.disconnect = function disconnect() {
	this.built = false;
	Module.prototype.disconnect.call(this);
};

MultiModule.prototype.build = function build(options, compilation, resolver, fs, callback) {
	this.built = true;
	return callback();
};

MultiModule.prototype.source = function(dependencyTemplates, outputOptions, requestShortener) {
	var str = [];
	this.dependencies.forEach(function(dep, idx) {
		if(dep.module) {
			if(idx === this.dependencies.length - 1)
				str.push("module.exports = ");
			str.push("__webpack_require__(");
			if(outputOptions.pathinfo)
				str.push("/*! "+dep.request+" */");
			str.push(""+dep.module.id);
			str.push(")");
		} else {
			str.push("(function webpackMissingModule() { throw new Error(");
			str.push(JSON.stringify("Cannot find module \"" + dep.request + "\""));
			str.push("); }())");
		}
		str.push(";\n");
	}, this);
	return new RawSource(str.join(""));
};

MultiModule.prototype.needRebuild = function needRebuild(fileTimestamps, contextTimestamps) {
	return false;
};

MultiModule.prototype.size = function() {
	return 16 + this.dependencies.length * 12;
};

MultiModule.prototype.updateHash = function(hash) {
	hash.update("multi module");
	hash.update(this.name || "");
	Module.prototype.updateHash.call(this, hash);
};