mirror of https://github.com/webpack/webpack.git
93 lines
2.7 KiB
JavaScript
93 lines
2.7 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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var Module = require("./Module");
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var OriginalSource = require("webpack-sources").OriginalSource;
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var RawSource = require("webpack-sources").RawSource;
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var WebpackMissingModule = require("./dependencies/WebpackMissingModule");
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function ExternalModule(request, type) {
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Module.call(this);
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this.chunkCondition = function(chunk) {
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return chunk.hasEntryModule();
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};
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this.request = request;
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this.type = type;
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this.built = false;
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}
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module.exports = ExternalModule;
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ExternalModule.prototype = Object.create(Module.prototype);
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ExternalModule.prototype.external = true;
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ExternalModule.prototype.identifier = function() {
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return "external " + JSON.stringify(this.request);
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};
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ExternalModule.prototype.readableIdentifier = function() {
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return "external " + JSON.stringify(this.request);
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};
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ExternalModule.prototype.needRebuild = function() {
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return false;
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};
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ExternalModule.prototype.build = function(options, compilation, resolver, fs, callback) {
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this.builtTime = new Date().getTime();
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callback();
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};
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ExternalModule.prototype.source = function() {
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var str = "throw new Error('Externals not supported');";
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var request = this.request;
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if(typeof request === "object") request = request[this.type];
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switch(this.type) {
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case "this":
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case "window":
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case "global":
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if(Array.isArray(request)) {
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str = "(function() { module.exports = " + this.type + request.map(function(r) {
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return "[" + JSON.stringify(r) + "]";
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}).join("") + "; }());";
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} else
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str = "(function() { module.exports = " + this.type + "[" + JSON.stringify(request) + "]; }());";
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break;
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case "commonjs":
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case "commonjs2":
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if(Array.isArray(request)) {
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str = "module.exports = require(" + JSON.stringify(request[0]) + ")" + request.slice(1).map(function(r) {
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return "[" + JSON.stringify(r) + "]";
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}).join("") + ";";
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} else
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str = "module.exports = require(" + JSON.stringify(request) + ");";
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break;
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case "amd":
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case "umd":
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case "umd2":
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str = "";
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if(this.optional) {
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str += "if(typeof __WEBPACK_EXTERNAL_MODULE_" + this.id + "__ === 'undefined') {" + WebpackMissingModule.moduleCode(request) + "}\n";
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}
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str += "module.exports = __WEBPACK_EXTERNAL_MODULE_" + this.id + "__;";
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break;
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default:
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str = "";
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if(this.optional) {
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str += "if(typeof " + request + " === 'undefined') {" + WebpackMissingModule.moduleCode(request) + "}\n";
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}
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str += "module.exports = " + request + ";";
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break;
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}
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if(this.useSourceMap) {
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return new OriginalSource(str, this.identifier());
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} else {
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return new RawSource(str);
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}
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};
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ExternalModule.prototype.size = function() {
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return 42;
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};
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