webpack/lib/UmdMainTemplateDecorator.js

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

function UmdMainTemplateDecorator(mainTemplate, name) {
	this.mainTemplate = mainTemplate;
	this.name = name;
}
module.exports = UmdMainTemplateDecorator;
UmdMainTemplateDecorator.prototype.render = function(hash, chunk, moduleTemplate, dependencyTemplates) {
	var source = this.mainTemplate.render(hash, chunk, moduleTemplate, dependencyTemplates);
	var externals = chunk.modules.filter(function(m) {
		return m.external;
	});
	var externalsDepsArray = JSON.stringify(externals.map(function(m) {
		return m.request;
	}));
	var externalsRootArray = externals.map(function(m) {
		return "root[" + JSON.stringify(m.request) + "]";
	}).join(", ");
	var externalsVarArray = externals.map(function(m) {
		return m.request;
	}).join(", ");
	var externalsRequireArray = externals.map(function(m) {
		var request = m.request;
		if(Array.isArray(request)) {
			return "require(" + JSON.stringify(request[0]) + ")" + request.slice(1).map(function(r) {
				return "[" + JSON.stringify(r) + "]";
			}).join("");
		} else 
			return "require(" + JSON.stringify(request) + ")";
	}).join(", ");
	var externalsArguments = externals.map(function(m) {
		return "__WEBPACK_EXTERNAL_MODULE_" + m.id + "__";
	}).join(", ");
	return new ConcatSource(new OriginalSource(
		"(function webpackUniversalModuleDefinition(root, factory) {\n" +
		"	if(typeof exports === 'object' && typeof module === 'object')\n" +
		"		module.exports = factory(" + externalsRequireArray + ");\n" +
		"	else if(typeof define === 'function' && define.amd)\n" +
		(externalsArguments ?
		"		define(" + externalsDepsArray + ", factory);\n"
		:
		"		define(factory);\n"
		) +
		(this.name ?
		"	else if(typeof exports === 'object')\n" +
		"		exports[" + JSON.stringify(this.name) + "] = factory(" + externalsRequireArray + ");\n" +
		"	else\n" +
		"		root[" + JSON.stringify(this.name) + "] = factory(" + externalsRootArray + ");\n"
		:
		"	else {\n" +
		(externalsArguments ?
		"		var a = typeof exports === 'object' ? factory(" + externalsRequireArray + ") : factory(" + externalsRootArray + ");\n"
		:
		"		var a = factory();\n"
		) +
		"		for(var i in a) (typeof exports === 'object' ? exports : root)[i] = a[i];\n" +
		"	}\n"
		) +
		"})(this, function(" + externalsArguments + ") {\nreturn ", "webpack/universalModuleDefinition"), source, "\n})\n");
};
UmdMainTemplateDecorator.prototype.updateHash = function(hash) {
	hash.update("umd");
	hash.update(this.name + "");
	this.mainTemplate.updateHash(hash);
};