8044638: Tidy up Nashorn codebase for code standards
Reviewed-by: lagergren, sundar
/* * 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.test.models." + n)}// Can't extend a final classtry { Java.extend(model("FinalClass"))} catch(e) { print(e)}// Can't extend a class with no public or protected constructortry { Java.extend(model("NoAccessibleConstructorClass"))} catch(e) { print(e)}// Can't extend a non-public classtry { Java.extend(model("NonPublicClass"))} catch(e) { print(e)}// Can't extend a class with explicit non-overridable finalizertry { Java.extend(model("ClassWithFinalFinalizer"))} catch(e) { print(e)}// Can't extend a class with inherited non-overridable finalizertry { Java.extend(model("ClassWithInheritedFinalFinalizer"))} catch(e) { print(e)}// Can't extend two classestry { Java.extend(java.lang.Thread,java.lang.Number)} catch(e) { print(e)}// Make sure we can implement interfaces from the unnamed packagevar c = new (Java.extend(Java.type("UnnamedPackageTestCallback")))() { call: function(s) { return s + s } }print(c.call("abcd"))// Basic Runnable from an objectnew (Java.extend(java.lang.Runnable))({ run: function() { print("run-object") } }).run()// Basic Runnable from a functionnew (Java.extend(java.lang.Runnable))(function() { print("run-fn") }).run()// Basic Runnable from an autoconverted functionvar t = new java.lang.Thread(function() { print("run-fn-autoconvert") })t.start()t.join()// SAM conversion should work on overloaded methods of same namevar 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 toStringvar oo = Java.extend(model("OverrideObject"))// First, see non-overridden valuesprint("oo-plain-hashCode: " + (new oo({})).hashCode())print("oo-plain-toString: " + (new oo({})).toString())print("oo-plain-equals : " + (new oo({})).equals({}))// Now, override themprint("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 literalvar cwa2 = new (model("ConstructorWithArgument"))("cwa2-token") { doSomething: function() { print("cwa2-" + cwa2.token ) } }cwa2.doSomething()// Implement two interfacesvar desertToppingAndFloorWax = new (Java.extend(model("DessertTopping"), model("FloorWax"))) { pourOnDessert: function() { print("Glop; IM IN UR DESSERT NOW") }, shineUpTheFloor: function() { print("The floor sure is shining!") }}var dtfwDriver = new (model("DessertToppingFloorWaxDriver"))dtfwDriver.decorateDessert(desertToppingAndFloorWax)dtfwDriver.waxFloor(desertToppingAndFloorWax)// Extend a class and implement two interfaces. For additional measure, put the class in between the two interfacesvar desertToppingFloorWaxAndToothpaste = new (Java.extend(model("DessertTopping"), model("Toothpaste"), model("FloorWax"))) { pourOnDessert: function() { print("Yum") }, shineUpTheFloor: function() { print("Scrub, scrub, scrub") }, applyToBrushImpl: function() { print("It's a dessert topping! It's a floor wax! It's a toothpaste!") }}dtfwDriver.decorateDessert(desertToppingFloorWaxAndToothpaste)dtfwDriver.waxFloor(desertToppingFloorWaxAndToothpaste)desertToppingFloorWaxAndToothpaste.applyToBrush();