1 /*
2 * Copyright (c) 2014, 2015, 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 * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
27 * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI jdk.vm.ci.runtime.test.ResolvedJavaTypeResolveConcreteMethodTest
28 */
29
30 package jdk.vm.ci.runtime.test;
31
32 import static org.junit.Assert.assertEquals;
33 import static org.junit.Assert.assertNull;
34 import jdk.vm.ci.meta.MetaAccessProvider;
35 import jdk.vm.ci.meta.ResolvedJavaMethod;
36 import jdk.vm.ci.meta.ResolvedJavaType;
37 import jdk.vm.ci.runtime.JVMCI;
38
39 import org.junit.Test;
40
41 public class ResolvedJavaTypeResolveConcreteMethodTest {
42 public final MetaAccessProvider metaAccess;
43
44 public ResolvedJavaTypeResolveConcreteMethodTest() {
45 metaAccess = JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess();
46 }
47
48 protected abstract static class A {
49 @SuppressWarnings("unused")
50 private void priv() {
51 }
52
53 public void v1() {
54 }
55
56 public void v2() {
57 }
58
59 public abstract void abs();
60 }
61
62 protected static class B extends A implements I {
63 public void i() {
64 }
65
66 @Override
67 public void v2() {
68 }
69
70 @Override
71 public void abs() {
72
73 }
74 }
75
76 protected static class C extends B {
77 public void d() {
78 }
79 }
80
81 protected abstract static class D extends A {
82
83 }
84
85 protected static class E extends D {
86 @Override
87 public void abs() {
88 }
89 }
90
91 protected interface I {
92 void i();
93
94 default void d() {
95 }
96 }
97
98 @Test
99 public void testDefaultMethod() {
100 ResolvedJavaType i = getType(I.class);
101 ResolvedJavaType b = getType(B.class);
102 ResolvedJavaType c = getType(C.class);
103 ResolvedJavaMethod di = getMethod(i, "d");
104 ResolvedJavaMethod dc = getMethod(c, "d");
105
106 assertEquals(di, i.resolveConcreteMethod(di, c));
107 assertEquals(di, b.resolveConcreteMethod(di, c));
108 assertEquals(dc, c.resolveConcreteMethod(di, c));
109 }
110
111 @Test
112 public void testPrivateMethod() {
113 ResolvedJavaType a = getType(A.class);
114 ResolvedJavaType b = getType(B.class);
115 ResolvedJavaType c = getType(C.class);
116 ResolvedJavaMethod priv = getMethod(a, "priv");
117
118 assertNull(a.resolveConcreteMethod(priv, c));
119 assertNull(b.resolveConcreteMethod(priv, c));
120 }
121
122 @Test
123 public void testAbstractMethod() {
124 ResolvedJavaType a = getType(A.class);
125 ResolvedJavaType b = getType(B.class);
126 ResolvedJavaType c = getType(C.class);
127 ResolvedJavaType d = getType(D.class);
128 ResolvedJavaType e = getType(E.class);
129 ResolvedJavaMethod absa = getMethod(a, "abs");
130 ResolvedJavaMethod absb = getMethod(b, "abs");
131 ResolvedJavaMethod abse = getMethod(e, "abs");
132
133 assertNull(a.resolveConcreteMethod(absa, c));
134 assertNull(d.resolveConcreteMethod(absa, c));
135
136 assertEquals(absb, b.resolveConcreteMethod(absa, c));
137 assertEquals(absb, b.resolveConcreteMethod(absb, c));
138 assertEquals(absb, c.resolveConcreteMethod(absa, c));
139 assertEquals(absb, c.resolveConcreteMethod(absb, c));
140 assertEquals(abse, e.resolveConcreteMethod(absa, c));
141 assertNull(e.resolveConcreteMethod(absb, c));
142 assertEquals(abse, e.resolveConcreteMethod(abse, c));
143 }
144
145 @Test
146 public void testVirtualMethod() {
147 ResolvedJavaType a = getType(A.class);
148 ResolvedJavaType b = getType(B.class);
149 ResolvedJavaType c = getType(C.class);
150 ResolvedJavaMethod v1a = getMethod(a, "v1");
151 ResolvedJavaMethod v2a = getMethod(a, "v2");
152 ResolvedJavaMethod v2b = getMethod(b, "v2");
153
154 assertEquals(v1a, a.resolveConcreteMethod(v1a, c));
155 assertEquals(v1a, b.resolveConcreteMethod(v1a, c));
156 assertEquals(v1a, c.resolveConcreteMethod(v1a, c));
157 assertEquals(v2a, a.resolveConcreteMethod(v2a, c));
158 assertEquals(v2b, b.resolveConcreteMethod(v2a, c));
159 assertEquals(v2b, b.resolveConcreteMethod(v2b, c));
160 assertEquals(v2b, c.resolveConcreteMethod(v2a, c));
161 assertEquals(v2b, c.resolveConcreteMethod(v2b, c));
162
163 }
164
165 static ResolvedJavaMethod getMethod(ResolvedJavaType type, String methodName) {
166 for (ResolvedJavaMethod method : type.getDeclaredMethods()) {
167 if (method.getName().equals(methodName)) {
168 return method;
169 }
170 }
171 throw new IllegalArgumentException();
172 }
173
174 protected ResolvedJavaType getType(Class<?> clazz) {
175 ResolvedJavaType type = metaAccess.lookupJavaType(clazz);
176 type.initialize();
177 return type;
178 }
179 }