next/dist/build/webpack/plugins/mini-css-extract-plugin/src/loader.js

The React Framework

"use strict";exports.__esModule=true;exports.pitch=pitch;exports.default=_default;var _module=_interopRequireDefault(require("module"));var _loaderUtils=_interopRequireDefault(require("next/dist/compiled/loader-utils"));var _webpack=require("next/dist/compiled/webpack/webpack");var _CssDependency=_interopRequireDefault(require("./CssDependency"));function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}const pluginName='mini-css-extract-plugin';function evalModuleCode(loaderContext,code,filename){const module=new _module.default(filename,loaderContext);module.paths=_module.default._nodeModulePaths(loaderContext.context);// eslint-disable-line no-underscore-dangle
module.filename=filename;module._compile(code,filename);// eslint-disable-line no-underscore-dangle
return module.exports;}function getModuleId(compilation,module){if(_webpack.isWebpack5){return compilation.chunkGraph.getModuleId(module);}return module.id;}function findModuleById(compilation,id){for(const module of compilation.modules){if(getModuleId(compilation,module)===id){return module;}}return null;}function pitch(request){const options=_loaderUtils.default.getOptions(this)||{};const loaders=this.loaders.slice(this.loaderIndex+1);this.addDependency(this.resourcePath);const childFilename='*';const publicPath=typeof options.publicPath==='string'?options.publicPath===''||options.publicPath.endsWith('/')?options.publicPath:`${options.publicPath}/`:typeof options.publicPath==='function'?options.publicPath(this.resourcePath,this.rootContext):this._compilation.outputOptions.publicPath;const outputOptions={filename:childFilename,publicPath,library:{type:'commonjs2',name:null}};const childCompiler=this._compilation.createChildCompiler(`${pluginName} ${request}`,outputOptions);new _webpack.webpack.node.NodeTemplatePlugin(outputOptions).apply(childCompiler);if(_webpack.isWebpack5){new _webpack.webpack.library.EnableLibraryPlugin(outputOptions.library.type).apply(childCompiler);}else{new _webpack.webpack.LibraryTemplatePlugin(null,'commonjs2').apply(childCompiler);}new _webpack.NodeTargetPlugin().apply(childCompiler);new(_webpack.isWebpack5?_webpack.webpack.EntryPlugin:_webpack.webpack.SingleEntryPlugin)(this.context,`!!${request}`,pluginName).apply(childCompiler);new _webpack.webpack.optimize.LimitChunkCountPlugin({maxChunks:1}).apply(childCompiler);let source;childCompiler.hooks.thisCompilation.tap(`${pluginName} loader`,compilation=>{const hook=_webpack.isWebpack5?_webpack.webpack.NormalModule.getCompilationHooks(compilation).loader:compilation.hooks.normalModuleLoader;hook.tap(`${pluginName} loader`,(loaderContext,module)=>{// eslint-disable-next-line no-param-reassign
loaderContext.emitFile=this.emitFile;if(module.request===request){// eslint-disable-next-line no-param-reassign
module.loaders=loaders.map(loader=>{return{loader:loader.path,options:loader.options,ident:loader.ident};});}});if(_webpack.isWebpack5){compilation.hooks.processAssets.tap({name:pluginName,// @ts-ignore TODO: Remove ignore when webpack 5 is stable
stage:_webpack.webpack.Compilation.PROCESS_ASSETS_STAGE_ADDITIONAL},assets=>{source=assets[childFilename]&&assets[childFilename].source();// Remove all chunk assets
Object.keys(assets).forEach(file=>delete assets[file]);});}});// webpack 5 case is covered in hooks.thisCompilation above
if(!_webpack.isWebpack5){childCompiler.hooks.afterCompile.tap(pluginName,compilation=>{source=compilation.assets[childFilename]&&compilation.assets[childFilename].source();// Remove all chunk assets
compilation.chunks.forEach(chunk=>{chunk.files.forEach(file=>{delete compilation.assets[file];// eslint-disable-line no-param-reassign
});});});}const callback=this.async();childCompiler.runAsChild((err,entries,compilation)=>{const addDependencies=dependencies=>{if(!Array.isArray(dependencies)&&dependencies!=null){throw new Error(`Exported value was not extracted as an array: ${JSON.stringify(dependencies)}`);}const identifierCountMap=new Map();for(const dependency of dependencies){const count=identifierCountMap.get(dependency.identifier)||0;this._module.addDependency(new _CssDependency.default(dependency,dependency.context,count));identifierCountMap.set(dependency.identifier,count+1);}};if(err){return callback(err);}if(compilation.errors.length>0){return callback(compilation.errors[0]);}compilation.fileDependencies.forEach(dep=>{this.addDependency(dep);},this);compilation.contextDependencies.forEach(dep=>{this.addContextDependency(dep);},this);if(!source){return callback(new Error("Didn't get a result from child compiler"));}let locals;try{let dependencies;let exports=evalModuleCode(this,source,request);// eslint-disable-next-line no-underscore-dangle
exports=exports.__esModule?exports.default:exports;locals=exports&&exports.locals;if(!Array.isArray(exports)){dependencies=[[null,exports]];}else{dependencies=exports.map(([id,content,media,sourceMap])=>{const module=findModuleById(compilation,id);return{identifier:module.identifier(),context:module.context,content,media,sourceMap};});}addDependencies(dependencies);}catch(e){return callback(e);}const esModule=typeof options.esModule!=='undefined'?options.esModule:false;const result=locals?`\n${esModule?'export default':'module.exports ='} ${JSON.stringify(locals)};`:esModule?`\nexport {};`:'';let resultSource=`// extracted by ${pluginName}`;resultSource+=result;return callback(null,resultSource);});}function _default(){}
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