1 /* 2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * JDK-8006529 : Constructor functions that don't need callees must not get 26 * linked with a MethodHandle boud to a specific function instance. 27 * @test 28 * @run 29 */ 30 31 Object.defineProperty(Object.prototype, "extends", { 32 value: function (superConstructor) { 33 function ProtoBridge() { } 34 ProtoBridge.prototype = superConstructor.prototype; 35 this.prototype = new ProtoBridge(); 36 this.superConstructor = superConstructor; 37 } 38 }); 39 40 function A() { 41 } 42 A.prototype.f = function () { 43 this.g(); 44 } 45 46 function B() { 47 B.superConstructor.call(this); 48 this.f(); 49 } 50 B.extends(A); 51 52 B.prototype.g = function () { 53 print("It worked!") 54 } 55 56 function C() { 57 C.superConstructor.call(this); 58 } 59 C.extends(B); 60 61 var x = [B, C] 62 for(var i in x) { 63 print("Doing " + i) 64 new x[i]() 65 }