text: /*
  	MIT License http://www.opensource.org/licenses/mit-license.php
  	Author Tobias Koppers @sokra
  */
  var path = require("path");
  var ModuleParserHelpers = require("./ModuleParserHelpers");
  var ConstDependency = require("./dependencies/ConstDependency");
  var BasicEvaluatedExpression = require("./BasicEvaluatedExpression");
  var UnsupportedFeatureWarning = require("./UnsupportedFeatureWarning");
  
  var NullFactory = require("./NullFactory");
  
  function NodeStuffPlugin(options) {
  	this.options = options;
  }
  module.exports = NodeStuffPlugin;
  NodeStuffPlugin.prototype.apply = function(compiler) {
  	compiler.plugin("compilation", function(compilation) {
  		compilation.dependencyFactories.set(ConstDependency, new NullFactory());
  		compilation.dependencyTemplates.set(ConstDependency, new ConstDependency.Template());
  	});
  
  	function ignore() {
  		return true;
  	}
  
  	function setConstant(expressionName, value) {
  		compiler.parser.plugin("expression " + expressionName, function() {
  			this.state.current.addVariable(expressionName, JSON.stringify(value));
  			return true;
  		});
  	}
  
  	function setModuleConstant(expressionName, fn) {
  		compiler.parser.plugin("expression " + expressionName, function() {
  			this.state.current.addVariable(expressionName, JSON.stringify(fn(this.state.module)));
  			return true;
  		});
  	}
  	var context = compiler.context;
  	if(this.options.__filename === "mock") {
  		setConstant("__filename", "/index.js");
  	} else if(this.options.__filename) {
  		setModuleConstant("__filename", function(module) {
  			return path.relative(context, module.resource);
  		});
  	}
  	compiler.parser.plugin("evaluate Identifier __filename", function(expr) {
  		if(!this.state.module) return;
  		var res = new BasicEvaluatedExpression();
  		var resource = this.state.module.resource;
  		var i = resource.indexOf("?");
  		res.setString(i < 0 ? resource : resource.substr(0, i));
  		res.setRange(expr.range);
  		return res;
  	});
  	if(this.options.__dirname === "mock") {
  		setConstant("__dirname", "/");
  	} else if(this.options.__dirname) {
  		setModuleConstant("__dirname", function(module) {
  			return path.relative(context, module.context);
  		});
  	}
  	compiler.parser.plugin("evaluate Identifier __dirname", function(expr) {
  		if(!this.state.module) return;
  		var res = new BasicEvaluatedExpression();
  		res.setString(this.state.module.context);
  		res.setRange(expr.range);
  		return res;
  	});
  	compiler.parser.plugin("expression require.main", function(expr) {
  		var dep = new ConstDependency("__webpack_require__.c[__webpack_require__.s]", expr.range);
  		dep.loc = expr.loc;
  		this.state.current.addDependency(dep);
  		return true;
  	});
  	compiler.parser.plugin("expression require.extensions", function(expr) {
  		var dep = new ConstDependency("(void 0)", expr.range);
  		dep.loc = expr.loc;
  		this.state.current.addDependency(dep);
  		if(!this.state.module) return;
  		this.state.module.warnings.push(new UnsupportedFeatureWarning(this.state.module, "require.extensions is not supported by webpack. Use a loader instead."));
  		return true;
  	});
  	compiler.parser.plugin("expression module.loaded", function(expr) {
  		var dep = new ConstDependency("module.l", expr.range);
  		dep.loc = expr.loc;
  		this.state.current.addDependency(dep);
  		return true;
  	});
  	compiler.parser.plugin("expression module.id", function(expr) {
  		var dep = new ConstDependency("module.i", expr.range);
  		dep.loc = expr.loc;
  		this.state.current.addDependency(dep);
  		return true;
  	});
  	compiler.parser.plugin("evaluate Identifier module.hot", function(expr) {
  		return new BasicEvaluatedExpression().setBoolean(false).setRange(expr.range);
  	});
  	compiler.parser.plugin("expression module", function(expr) {
  		var moduleJsPath = path.join(__dirname, "..", "buildin", "module.js");
  		if(this.state.module.context) {
  			moduleJsPath = path.relative(this.state.module.context, moduleJsPath);
  			if(!/^[A-Z]:/i.test(moduleJsPath)) {
  				moduleJsPath = "./" + moduleJsPath.replace(/\\/g, "/");
  			}
  		}
  		return ModuleParserHelpers.addParsedVariable(this, "module", "require(" + JSON.stringify(moduleJsPath) + ")(module)");
  	});
  };
  