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node_modules/enhanced-resolve/lib/AliasFieldPlugin.js

@@ -2,50 +2,51 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
+"use strict";
 
-var DescriptionFileUtils = require("./DescriptionFileUtils");
-var createInnerCallback = require("./createInnerCallback");
-var getInnerRequest = require("./getInnerRequest");
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+const getInnerRequest = require("./getInnerRequest");
 
-function AliasFieldPlugin(source, field, target) {
-	this.source = source;
-	this.field = field;
-	this.target = target;
-}
-module.exports = AliasFieldPlugin;
+module.exports = class AliasFieldPlugin {
+	constructor(source, field, target) {
+		this.source = source;
+		this.field = field;
+		this.target = target;
+	}
 
-AliasFieldPlugin.prototype.apply = function(resolver) {
-	var target = this.target;
-	var field = this.field;
-	resolver.plugin(this.source, function(request, callback) {
-		if(!request.descriptionFileData) return callback();
-		var innerRequest = getInnerRequest(resolver, request);
-		if(!innerRequest) return callback();
-		var fieldData = DescriptionFileUtils.getField(request.descriptionFileData, field);
-		if(typeof fieldData !== "object") {
-			if(callback.log) callback.log("Field '" + field + "' doesn't contain a valid alias configuration");
-			return callback();
-		}
-		var data1 = fieldData[innerRequest];
-		var data2 = fieldData[innerRequest.replace(/^\.\//, "")];
-		var data = typeof data1 !== "undefined" ? data1 : data2;
-		if(data === innerRequest) return callback();
-		if(data === undefined) return callback();
-		if(data === false) {
-			var ignoreObj = Object.assign({}, request, {
-				path: false
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("AliasFieldPlugin", (request, resolveContext, callback) => {
+			if(!request.descriptionFileData) return callback();
+			const innerRequest = getInnerRequest(resolver, request);
+			if(!innerRequest) return callback();
+			const fieldData = DescriptionFileUtils.getField(request.descriptionFileData, this.field);
+			if(typeof fieldData !== "object") {
+				if(resolveContext.log) resolveContext.log("Field '" + this.field + "' doesn't contain a valid alias configuration");
+				return callback();
+			}
+			const data1 = fieldData[innerRequest];
+			const data2 = fieldData[innerRequest.replace(/^\.\//, "")];
+			const data = typeof data1 !== "undefined" ? data1 : data2;
+			if(data === innerRequest) return callback();
+			if(data === undefined) return callback();
+			if(data === false) {
+				const ignoreObj = Object.assign({}, request, {
+					path: false
+				});
+				return callback(null, ignoreObj);
+			}
+			const obj = Object.assign({}, request, {
+				path: request.descriptionFileRoot,
+				request: data
 			});
-			return callback(null, ignoreObj);
-		}
-		var obj = Object.assign({}, request, {
-			path: request.descriptionFileRoot,
-			request: data
-		});
-		resolver.doResolve(target, obj, "aliased from description file " + request.descriptionFilePath + " with mapping '" + innerRequest + "' to '" + data + "'", createInnerCallback(function(err, result) {
-			if(arguments.length > 0) return callback(err, result);
+			resolver.doResolve(target, obj, "aliased from description file " + request.descriptionFilePath + " with mapping '" + innerRequest + "' to '" + data + "'", 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);
+			});
+		});
+	}
 };