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