/* * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /** * @test * @run */ function model(n) { return Java.type("jdk.nashorn.internal.test.models." + n) } // Can't extend a final class try { Java.extend(model("FinalClass")) } catch(e) { print(e) } // Can't extend a class with no public or protected constructor try { Java.extend(model("NoAccessibleConstructorClass")) } catch(e) { print(e) } // Can't extend a non-public class try { Java.extend(model("NonPublicClass")) } catch(e) { print(e) } // Make sure we can implement interfaces from the unnamed package var c = new (Java.extend(Java.type("UnnamedPackageTestCallback")))() { call: function(s) { return s + s } } print(c.call("abcd")) // Basic Runnable from an object new (Java.extend(java.lang.Runnable))({ run: function() { print("run-object") } }).run() // Basic Runnable from a function new (Java.extend(java.lang.Runnable))(function() { print("run-fn") }).run() // Basic Runnable from an autoconverted function var t = new java.lang.Thread(function() { print("run-fn-autoconvert") }) t.start() t.join() // SAM conversion should work on overloaded methods of same name var os = new (Java.extend(model("OverloadedSam")))(function(s1, s2) { print("overloaded-sam: " + s1 + ", " + s2) }) os.sam("x") os.sam("x", "y") // Test overriding of hashCode, equals, and toString var oo = Java.extend(model("OverrideObject")) // First, see non-overridden values print("oo-plain-hashCode: " + (new oo({})).hashCode()) print("oo-plain-toString: " + (new oo({})).toString()) print("oo-plain-equals : " + (new oo({})).equals({})) // Now, override them print("oo-overridden-hashCode: " + (new oo({ hashCode: function() { return 6 }})).hashCode()) print("oo-overridden-toString: " + (new oo({ toString: function() { return "override-object-overriden" }})).toString()) print("oo-overridden-equals : " + (new oo({ equals: function() { return true }})).equals({})) // Finally, test that equals and hashCode can be overridden with functions from a prototype, but toString() can't: function Proto() { return this; } Proto.prototype = { toString: function() { return "this-will-never-be-seen" }, // toString only overridden when it's own property, never from prototype equals: function() { return true }, hashCode: function() { return 7 } } print("oo-proto-overridden-hashCode: " + (new oo(new Proto())).hashCode()) print("oo-proto-overridden-toString: " + (new oo(new Proto())).toString()) print("oo-proto-overridden-equals : " + (new oo(new Proto())).equals({})) // Subclass a class with a protected constructor, and one that takes // additional constructor arguments (a token). Also demonstrates how can // you access the Java adapter instance from the script (just store it in the // scope, in this example, "cwa") to retrieve the token later on. var cwa = new (Java.extend(model("ConstructorWithArgument")))("cwa-token", function() { print(cwa.token) }) cwa.doSomething() // Do the same thing with proprietary syntax and object literal var cwa2 = new (model("ConstructorWithArgument"))("cwa2-token") { doSomething: function() { print("cwa2-" + cwa2.token ) } } cwa2.doSomething()