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node_modules/enhanced-resolve/lib/AliasPlugin.js

@@ -2,17 +2,17 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
-var createInnerCallback = require("./createInnerCallback");
+"use strict";
 
 function startsWith(string, searchString) {
-	var stringLength = string.length;
-	var searchLength = searchString.length;
+	const stringLength = string.length;
+	const searchLength = searchString.length;
 
 	// early out if the search length is greater than the search string
 	if(searchLength > stringLength) {
 		return false;
 	}
-	var index = -1;
+	let index = -1;
 	while(++index < searchLength) {
 		if(string.charCodeAt(index) !== searchString.charCodeAt(index)) {
 			return false;
@@ -21,37 +21,36 @@ function startsWith(string, searchString) {
 	return true;
 }
 
-function AliasPlugin(source, options, target) {
-	this.source = source;
-	this.name = options.name;
-	this.alias = options.alias;
-	this.onlyModule = options.onlyModule;
-	this.target = target;
-}
-module.exports = AliasPlugin;
+module.exports = class AliasPlugin {
+	constructor(source, options, target) {
+		this.source = source;
+		this.options = Array.isArray(options) ? options : [options];
+		this.target = target;
+	}
 
-AliasPlugin.prototype.apply = function(resolver) {
-	var target = this.target;
-	var name = this.name;
-	var alias = this.alias;
-	var onlyModule = this.onlyModule;
-	resolver.plugin(this.source, function(request, callback) {
-		var innerRequest = request.request;
-		if(!innerRequest) return callback();
-		if(innerRequest === name || (!onlyModule && startsWith(innerRequest, name + "/"))) {
-			if(innerRequest !== alias && !startsWith(innerRequest, alias + "/")) {
-				var newRequestStr = alias + innerRequest.substr(name.length);
-				var obj = Object.assign({}, request, {
-					request: newRequestStr
-				});
-				return resolver.doResolve(target, obj, "aliased with mapping '" + name + "': '" + alias + "' to '" + newRequestStr + "'", createInnerCallback(function(err, result) {
-					if(arguments.length > 0) return callback(err, result);
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("AliasPlugin", (request, resolveContext, callback) => {
+			const innerRequest = request.request || request.path;
+			if(!innerRequest) return callback();
+			for(const item of this.options) {
+				if(innerRequest === item.name || (!item.onlyModule && startsWith(innerRequest, item.name + "/"))) {
+					if(innerRequest !== item.alias && !startsWith(innerRequest, item.alias + "/")) {
+						const newRequestStr = item.alias + innerRequest.substr(item.name.length);
+						const obj = Object.assign({}, request, {
+							request: newRequestStr
+						});
+						return resolver.doResolve(target, obj, "aliased with mapping '" + item.name + "': '" + item.alias + "' to '" + newRequestStr + "'", resolveContext, (err, result) => {
+							if(err) return callback(err);
 
-					// don't allow other aliasing or raw request
-					callback(null, null);
-				}, callback));
+							// Don't allow other aliasing or raw request
+							if(result === undefined) return callback(null, null);
+							callback(null, result);
+						});
+					}
+				}
 			}
-		}
-		return callback();
-	});
+			return callback();
+		});
+	}
 };