LoaderPlugin.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var LoaderDependency = require("./LoaderDependency");
function LoaderPlugin() {}
module.exports = LoaderPlugin;
LoaderPlugin.prototype.apply = function(compiler) {
compiler.plugin("compilation", function(compilation, params) {
var normalModuleFactory = params.normalModuleFactory;
compilation.dependencyFactories.set(LoaderDependency, normalModuleFactory);
});
compiler.plugin("compilation", function(compilation) {
compilation.plugin("normal-module-loader", function(loaderContext, module) {
loaderContext.loadModule = function loadModule(request, callback) {
var dep = new LoaderDependency(request);
dep.loc = request;
compilation.addModuleDependencies(module, [
[dep]
], true, "lm", false, function(err) {
if(err) return callback(err);
if(!dep.module) return callback(new Error("Cannot load the module"));
if(dep.module.building) dep.module.building.push(next);
else next();
function next(err) {
if(err) return callback(err);
if(dep.module.error) return callback(dep.module.error);
if(!dep.module._source) throw new Error("The module created for a LoaderDependency must have a property _source");
var source, map;
var moduleSource = dep.module._source;
if(moduleSource.sourceAndMap) {
var sourceAndMap = moduleSource.sourceAndMap();
map = sourceAndMap.map;
source = sourceAndMap.source;
} else {
map = moduleSource.map();
source = moduleSource.source();
}
if(dep.module.fileDependencies) {
dep.module.fileDependencies.forEach(function(dep) {
loaderContext.addDependency(dep);
});
}
if(dep.module.contextDependencies) {
dep.module.contextDependencies.forEach(function(dep) {
loaderContext.addContextDependency(dep);
});
}
return callback(null, source, map, dep.module);
}
});
};
});
});
};