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 * @test
26 * @run
27 */
28
29 function model(n) {
30 return Java.type("jdk.nashorn.test.models." + n)
31 }
32
33 // Can't extend a final class
34 try {
35 Java.extend(model("FinalClass"))
36 } catch(e) {
37 print(e)
38 }
39
40 // Can't extend a class with no public or protected constructor
41 try {
42 Java.extend(model("NoAccessibleConstructorClass"))
43 } catch(e) {
44 print(e)
45 }
46
47 // Can't extend a non-public class
48 try {
49 Java.extend(model("NonPublicClass"))
50 } catch(e) {
51 print(e)
52 }
53
54 // Can't extend a class with explicit non-overridable finalizer
55 try {
56 Java.extend(model("ClassWithFinalFinalizer"))
57 } catch(e) {
58 print(e)
59 }
60
61 // Can't extend a class with inherited non-overridable finalizer
62 try {
63 Java.extend(model("ClassWithInheritedFinalFinalizer"))
64 } catch(e) {
65 print(e)
66 }
67
68
69 // Can't extend two classes
70 try {
71 Java.extend(java.lang.Thread,java.lang.Number)
72 } catch(e) {
73 print(e)
74 }
75
76 // Make sure we can implement interfaces from the unnamed package
77 var c = new (Java.extend(Java.type("UnnamedPackageTestCallback")))() { call: function(s) { return s + s } }
78 print(c.call("abcd"))
79
80 // Basic Runnable from an object
81 new (Java.extend(java.lang.Runnable))({ run: function() { print("run-object") } }).run()
82
83 // Basic Runnable from a function
84 new (Java.extend(java.lang.Runnable))(function() { print("run-fn") }).run()
85
86 // Basic Runnable from an autoconverted function
87 var t = new java.lang.Thread(function() { print("run-fn-autoconvert") })
88 t.start()
89 t.join()
90
91 // SAM conversion should work on overloaded methods of same name
92 var os = new (Java.extend(model("OverloadedSam")))(function(s1, s2) { print("overloaded-sam: " + s1 + ", " + s2) })
93 os.sam("x")
94 os.sam("x", "y")
95
96 // Test overriding of hashCode, equals, and toString
97 var oo = Java.extend(model("OverrideObject"))
98 // First, see non-overridden values
99 print("oo-plain-hashCode: " + (new oo({})).hashCode())
100 print("oo-plain-toString: " + (new oo({})).toString())
101 print("oo-plain-equals : " + (new oo({})).equals({}))
102 // Now, override them
103 print("oo-overridden-hashCode: " + (new oo({ hashCode: function() { return 6 }})).hashCode())
104 print("oo-overridden-toString: " + (new oo({ toString: function() { return "override-object-overriden" }})).toString())
105 print("oo-overridden-equals : " + (new oo({ equals: function() { return true }})).equals({}))
106 // Finally, test that equals and hashCode can be overridden with functions from a prototype, but toString() can't:
107 function Proto() {
108 return this;
109 }
110 Proto.prototype = {
111 toString: function() { return "this-will-never-be-seen" }, // toString only overridden when it's own property, never from prototype
112 equals: function() { return true },
113 hashCode: function() { return 7 }
114 }
115 print("oo-proto-overridden-hashCode: " + (new oo(new Proto())).hashCode())
116 print("oo-proto-overridden-toString: " + (new oo(new Proto())).toString())
117 print("oo-proto-overridden-equals : " + (new oo(new Proto())).equals({}))
118
119 // Subclass a class with a protected constructor, and one that takes
120 // additional constructor arguments (a token). Also demonstrates how can
121 // you access the Java adapter instance from the script (just store it in the
122 // scope, in this example, "cwa") to retrieve the token later on.
123 var cwa = new (Java.extend(model("ConstructorWithArgument")))("cwa-token", function() { print(cwa.token) })
124 cwa.doSomething()
125
126 // Do the same thing with proprietary syntax and object literal
127 var cwa2 = new (model("ConstructorWithArgument"))("cwa2-token") { doSomething: function() { print("cwa2-" + cwa2.token ) } }
128 cwa2.doSomething()
129
130 // Implement two interfaces
131 var desertToppingAndFloorWax = new (Java.extend(model("DessertTopping"), model("FloorWax"))) {
132 pourOnDessert: function() { print("Glop; IM IN UR DESSERT NOW") },
133 shineUpTheFloor: function() { print("The floor sure is shining!") }
134 }
135 var dtfwDriver = new (model("DessertToppingFloorWaxDriver"))
136 dtfwDriver.decorateDessert(desertToppingAndFloorWax)
137 dtfwDriver.waxFloor(desertToppingAndFloorWax)
138
139 // Extend a class and implement two interfaces. For additional measure, put the class in between the two interfaces
140 var desertToppingFloorWaxAndToothpaste = new (Java.extend(model("DessertTopping"), model("Toothpaste"), model("FloorWax"))) {
141 pourOnDessert: function() { print("Yum") },
142 shineUpTheFloor: function() { print("Scrub, scrub, scrub") },
143 applyToBrushImpl: function() { print("It's a dessert topping! It's a floor wax! It's a toothpaste!") }
144 }
145 dtfwDriver.decorateDessert(desertToppingFloorWaxAndToothpaste)
146 dtfwDriver.waxFloor(desertToppingFloorWaxAndToothpaste)
147 desertToppingFloorWaxAndToothpaste.applyToBrush();