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 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 }