1 /*
2 * Copyright (c) 2014, 2016, 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 vm.jvmci
27 * @modules jdk.internal.vm.ci/jdk.vm.ci.meta
28 * jdk.internal.vm.ci/jdk.vm.ci.runtime
29 * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI -Djvmci.Compiler=null jdk.vm.ci.runtime.test.ResolvedJavaTypeResolveMethodTest
30 */
31
32 package jdk.vm.ci.runtime.test;
33
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 import org.junit.Test;
39
40 import static org.junit.Assert.assertEquals;
41 import static org.junit.Assert.assertNull;
42
43 public class ResolvedJavaTypeResolveMethodTest {
44 public final MetaAccessProvider metaAccess;
45
46 public ResolvedJavaTypeResolveMethodTest() {
47 metaAccess = JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess();
48 }
49
50 protected abstract static class A {
51 @SuppressWarnings("unused")
52 private void priv() {
53 }
54
55 public void v1() {
56 }
57
58 public void v2() {
59 }
60
61 public abstract void abs();
62 }
63
64 protected static class B extends A implements I {
65 public void i() {
66 }
67
68 @Override
69 public void v2() {
70 }
71
72 @Override
73 public void abs() {
74
75 }
76 }
77
78 protected static class C extends B {
79 public void d() {
80 }
81 }
82
83 protected abstract static class D extends A {
84
85 }
86
87 protected static class E extends D {
88 @Override
89 public void abs() {
90 }
91 }
92
93 protected interface I {
94 void i();
95
96 default void d() {
97 }
98 }
99
100 @Test
101 public void testDefaultMethod() {
102 ResolvedJavaType i = getType(I.class);
103 ResolvedJavaType b = getType(B.class);
104 ResolvedJavaType c = getType(C.class);
105 ResolvedJavaMethod di = getMethod(i, "d");
106 ResolvedJavaMethod dc = getMethod(c, "d");
107
108 assertEquals(null, i.resolveMethod(di, c));
109 assertEquals(di, b.resolveMethod(di, c));
110 assertEquals(dc, c.resolveMethod(di, c));
111 }
112
113 @Test
114 public void testPrivateMethod() {
115 ResolvedJavaType a = getType(A.class);
116 ResolvedJavaType b = getType(B.class);
117 ResolvedJavaType c = getType(C.class);
118 ResolvedJavaMethod priv = getMethod(a, "priv");
119
120 assertNull(a.resolveMethod(priv, c));
121 assertNull(b.resolveMethod(priv, c));
122 }
123
124 @Test
125 public void testAbstractMethod() {
126 ResolvedJavaType a = getType(A.class);
127 ResolvedJavaType b = getType(B.class);
128 ResolvedJavaType c = getType(C.class);
129 ResolvedJavaType d = getType(D.class);
130 ResolvedJavaType e = getType(E.class);
131 ResolvedJavaMethod absa = getMethod(a, "abs");
132 ResolvedJavaMethod absb = getMethod(b, "abs");
133 ResolvedJavaMethod abse = getMethod(e, "abs");
134
135 assertEquals(absa, a.resolveMethod(absa, c));
136 assertEquals(absa, d.resolveMethod(absa, c));
137
138 assertEquals(absb, b.resolveMethod(absa, c));
139 assertEquals(absb, b.resolveMethod(absb, c));
140 assertEquals(absb, c.resolveMethod(absa, c));
141 assertEquals(absb, c.resolveMethod(absb, c));
142 assertEquals(abse, e.resolveMethod(absa, c));
143 assertNull(e.resolveMethod(absb, c));
144 assertEquals(abse, e.resolveMethod(abse, c));
145 }
146
147 @Test
148 public void testVirtualMethod() {
149 ResolvedJavaType a = getType(A.class);
150 ResolvedJavaType b = getType(B.class);
151 ResolvedJavaType c = getType(C.class);
152 ResolvedJavaMethod v1a = getMethod(a, "v1");
153 ResolvedJavaMethod v2a = getMethod(a, "v2");
154 ResolvedJavaMethod v2b = getMethod(b, "v2");
155
156 assertEquals(v1a, a.resolveMethod(v1a, c));
157 assertEquals(v1a, b.resolveMethod(v1a, c));
158 assertEquals(v1a, c.resolveMethod(v1a, c));
159 assertEquals(v2a, a.resolveMethod(v2a, c));
160 assertEquals(v2b, b.resolveMethod(v2a, c));
161 assertEquals(v2b, b.resolveMethod(v2b, c));
162 assertEquals(v2b, c.resolveMethod(v2a, c));
163 assertEquals(v2b, c.resolveMethod(v2b, c));
164
165 }
166
167 static ResolvedJavaMethod getMethod(ResolvedJavaType type, String methodName) {
168 for (ResolvedJavaMethod method : type.getDeclaredMethods()) {
169 if (method.getName().equals(methodName)) {
170 return method;
171 }
172 }
173 throw new IllegalArgumentException();
174 }
175
176 protected ResolvedJavaType getType(Class<?> clazz) {
177 ResolvedJavaType type = metaAccess.lookupJavaType(clazz);
178 type.initialize();
179 return type;
180 }
181 }