FindUniqueConcreteMethodTest.java revision 12365:d1a00bd8dcca 
1/*
2 * Copyright (c) 2015, 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 * @bug 8136421
27 * @requires vm.jvmci
28 * @library / /test/lib
29 * @library ../common/patches
30 * @modules java.base/jdk.internal.misc
31 * @modules java.base/jdk.internal.org.objectweb.asm
32 *          java.base/jdk.internal.org.objectweb.asm.tree
33 *          jdk.vm.ci/jdk.vm.ci.hotspot
34 *          jdk.vm.ci/jdk.vm.ci.code
35 *          jdk.vm.ci/jdk.vm.ci.meta
36 *          jdk.vm.ci/jdk.vm.ci.runtime
37 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
38 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
39 *                   compiler.jvmci.compilerToVM.FindUniqueConcreteMethodTest
40 */
41
42package compiler.jvmci.compilerToVM;
43
44import compiler.jvmci.common.CTVMUtilities;
45import compiler.jvmci.common.testcases.DuplicateSimpleSingleImplementerInterface;
46import compiler.jvmci.common.testcases.SimpleSingleImplementerInterface;
47import compiler.jvmci.common.testcases.MultipleImplementer1;
48import compiler.jvmci.common.testcases.MultipleSuperImplementers;
49import compiler.jvmci.common.testcases.SingleImplementer;
50import compiler.jvmci.common.testcases.SingleImplementerInterface;
51import compiler.jvmci.common.testcases.SingleSubclass;
52import jdk.test.lib.Asserts;
53import jdk.test.lib.Utils;
54import jdk.vm.ci.hotspot.CompilerToVMHelper;
55import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
56import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
57
58import java.lang.reflect.Method;
59import java.util.HashSet;
60import java.util.Set;
61
62public class FindUniqueConcreteMethodTest {
63    public static void main(String args[]) {
64        FindUniqueConcreteMethodTest test = new FindUniqueConcreteMethodTest();
65        try {
66            for (TestCase tcase : createTestCases()) {
67                test.runTest(tcase);
68            }
69        } catch (NoSuchMethodException e) {
70            throw new Error("TEST BUG: can't find method", e);
71        }
72    }
73
74    private static Set<TestCase> createTestCases() {
75        Set<TestCase> result = new HashSet<>();
76        // a public method
77        result.add(new TestCase(true, SingleSubclass.class, "usualMethod"));
78        // overriden method
79        result.add(new TestCase(true, SingleSubclass.class, "overridenMethod"));
80        // private method
81        result.add(new TestCase(true, SingleSubclass.class, "privateMethod"));
82        // protected method
83        result.add(new TestCase(true, SingleSubclass.class, "protectedMethod"));
84        // default(package-private) method
85        result.add(new TestCase(true, SingleSubclass.class, "defaultAccessMethod"));
86        // default interface method redefined in implementer
87        result.add(new TestCase(true, MultipleImplementer1.class, "defaultMethod"));
88        // interface method
89        result.add(new TestCase(true, MultipleImplementer1.class, "testMethod"));
90        // default interface method not redefined in implementer
91        // result.add(new TestCase(true, SingleImplementer.class,
92        //                         SingleImplementerInterface.class, "defaultMethod"));
93        // static method
94        result.add(new TestCase(false, SingleSubclass.class, "staticMethod"));
95        // interface method
96        result.add(new TestCase(false, MultipleSuperImplementers.class,
97                                DuplicateSimpleSingleImplementerInterface.class, "interfaceMethod"));
98        result.add(new TestCase(false, MultipleSuperImplementers.class,
99                                SimpleSingleImplementerInterface.class, "interfaceMethod"));
100        return result;
101    }
102
103    private void runTest(TestCase tcase) throws NoSuchMethodException {
104        System.out.println(tcase);
105        Method method = tcase.holder.getDeclaredMethod(tcase.methodName);
106        HotSpotResolvedJavaMethod testMethod = CTVMUtilities.getResolvedMethod(method);
107
108        HotSpotResolvedObjectType resolvedType = CompilerToVMHelper
109                .lookupType(Utils.toJVMTypeSignature(tcase.receiver), getClass(),
110                /* resolve = */ true);
111        HotSpotResolvedJavaMethod concreteMethod = CompilerToVMHelper
112                .findUniqueConcreteMethod(resolvedType, testMethod);
113        Asserts.assertEQ(concreteMethod, tcase.isPositive ? testMethod : null,
114                "Unexpected concrete method for " + tcase.methodName);
115    }
116
117    private static class TestCase {
118        public final Class<?> receiver;
119        public final Class<?> holder;
120        public final String methodName;
121        public final boolean isPositive;
122
123        public TestCase(boolean isPositive, Class<?> clazz, Class<?> holder,
124                        String methodName) {
125            this.receiver = clazz;
126            this.methodName = methodName;
127            this.isPositive = isPositive;
128            this.holder = holder;
129        }
130
131        public TestCase(boolean isPositive, Class<?> clazz, String methodName) {
132            this(isPositive, clazz, clazz, methodName);
133        }
134
135        @Override
136        public String toString() {
137            return String.format("CASE: receiver=%s, holder=%s, method=%s, isPositive=%s",
138                                 receiver.getName(), holder.getName(), methodName, isPositive);
139        }
140    }
141}
142