ResolvedJavaTypeResolveConcreteMethodTest.java revision 9814:22fd02fad88b 
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.simpleArch == "aarch64")
27 * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI jdk.vm.ci.runtime.test.ResolvedJavaTypeResolveConcreteMethodTest
28 */
29
30package jdk.vm.ci.runtime.test;
31
32import static org.junit.Assert.assertEquals;
33import static org.junit.Assert.assertNull;
34import jdk.vm.ci.meta.MetaAccessProvider;
35import jdk.vm.ci.meta.ResolvedJavaMethod;
36import jdk.vm.ci.meta.ResolvedJavaType;
37import jdk.vm.ci.runtime.JVMCI;
38
39import org.junit.Test;
40
41public 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}
180