text: /*
  	MIT License http://www.opensource.org/licenses/mit-license.php
  	Author Tobias Koppers @sokra
  */
  var path = require("path");
  var ModuleAliasPlugin = require("enhanced-resolve/lib/ModuleAliasPlugin");
  var ModuleParserHelpers = require("./ModuleParserHelpers");
  var ConstDependency = require("./dependencies/ConstDependency");
  var BasicEvaluatedExpression = require("./BasicEvaluatedExpression");
  var UnsupportedFeatureWarning = require("./UnsupportedFeatureWarning");
  
  function NodeStuffPlugin(options) {
  	this.options = options;
  }
  module.exports = NodeStuffPlugin;
  NodeStuffPlugin.prototype.apply = function(compiler) {
  	function ignore() { return true; }
  	var context = compiler.context;
  	if(this.options.__filename == "mock") {
  		compiler.parser.plugin("expression __filename", function(expr) {
  			this.state.current.addVariable("__filename", JSON.stringify("/index.js"));
  			return true;
  		});
  	} else if(this.options.__filename) {
  		compiler.parser.plugin("expression __filename", function(expr) {
  			this.state.current.addVariable("__filename", JSON.stringify(
  				path.relative(context, this.state.module.resource)
  			));
  			return true;
  		});
  	}
  	compiler.parser.plugin("evaluate Identifier __filename", function(expr) {
  		if(!this.state.module) return;
  		var res = new BasicEvaluatedExpression();
  		res.setString(this.state.module.splitQuery(this.state.module.resource)[0]);
  		res.setRange(expr.range);
  		return res;
  	});
  	if(this.options.__dirname == "mock") {
  		compiler.parser.plugin("expression __dirname", function(expr) {
  			this.state.current.addVariable("__dirname", JSON.stringify("/"));
  			return true;
  		});
  	} else if(this.options.__dirname) {
  		compiler.parser.plugin("expression __dirname", function(expr) {
  			this.state.current.addVariable("__dirname", JSON.stringify(
  				path.relative(context, this.state.module.context)
  			));
  			return true;
  		});
  	}
  	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("require.cache[0]", expr.range);
  		dep.loc = expr.loc;
  		this.state.current.addDependency(dep);
  		return true;
  	});
  	compiler.parser.plugin("expression require.extensions", function(expr) {
  		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.exports", ignore);
  	compiler.parser.plugin("expression module.loaded", ignore);
  	compiler.parser.plugin("expression module.id", ignore);
  	compiler.parser.plugin("evaluate Identifier module.hot", function(expr) {
  		return new BasicEvaluatedExpression().setBoolean(false).setRange(expr.range);
  	});
  	compiler.parser.plugin("expression module", function(expr) {
  		return ModuleParserHelpers.addParsedVariable(this, "module", "require(" + JSON.stringify(path.join(__dirname, "..", "buildin", "module.js")) + ")(module)");
  	});
  };