1 /* 2 * Copyright (c) 2014, 2018, 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.ResolvedJavaTypeResolveConcreteMethodTest 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 import static org.junit.Assert.assertNotNull; 43 44 public class ResolvedJavaTypeResolveConcreteMethodTest { 45 public final MetaAccessProvider metaAccess; 46 47 public ResolvedJavaTypeResolveConcreteMethodTest() { 48 metaAccess = JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess(); 49 } 50 51 protected abstract static class A { 52 @SuppressWarnings("unused") 53 private void priv() { 54 } 55 56 public void v1() { 57 } 58 59 public void v2() { 60 } 61 62 public abstract void abs(); 63 } 64 65 protected static class B extends A implements I { 66 public void i() { 67 } 68 69 @Override 70 public void v2() { 71 } 72 73 @Override 74 public void abs() { 75 76 } 77 } 78 79 protected static class C extends B { 80 public void d() { 81 } 82 } 83 84 protected abstract static class D extends A { 85 86 } 87 88 protected static class E extends D { 89 @Override 90 public void abs() { 91 } 92 } 93 94 protected interface I { 95 void i(); 96 97 default void d() { 98 } 99 } 100 101 @Test 102 public void testDefaultMethod() { 103 ResolvedJavaType i = getType(I.class); 104 ResolvedJavaType b = getType(B.class); 105 ResolvedJavaType c = getType(C.class); 106 ResolvedJavaMethod di = getMethod(i, "d"); 107 ResolvedJavaMethod dc = getMethod(c, "d"); 108 109 assertEquals(null, i.resolveConcreteMethod(di, c)); 110 assertEquals(di, b.resolveConcreteMethod(di, c)); 111 assertEquals(dc, c.resolveConcreteMethod(di, c)); 112 } 113 114 @Test 115 public void testPrivateMethod() { 116 ResolvedJavaType a = getType(A.class); 117 ResolvedJavaType b = getType(B.class); 118 ResolvedJavaType c = getType(C.class); 119 ResolvedJavaMethod priv = getMethod(a, "priv"); 120 121 // nestmates have access to private methods 122 assertNotNull(a.resolveConcreteMethod(priv, c)); 123 assertNotNull(b.resolveConcreteMethod(priv, c)); 124 } 125 126 @Test 127 public void testAbstractMethod() { 128 ResolvedJavaType a = getType(A.class); 129 ResolvedJavaType b = getType(B.class); 130 ResolvedJavaType c = getType(C.class); 131 ResolvedJavaType d = getType(D.class); 132 ResolvedJavaType e = getType(E.class); 133 ResolvedJavaMethod absa = getMethod(a, "abs"); 134 ResolvedJavaMethod absb = getMethod(b, "abs"); 135 ResolvedJavaMethod abse = getMethod(e, "abs"); 136 137 assertNull(a.resolveConcreteMethod(absa, c)); 138 assertNull(d.resolveConcreteMethod(absa, c)); 139 140 assertEquals(absb, b.resolveConcreteMethod(absa, c)); 141 assertEquals(absb, b.resolveConcreteMethod(absb, c)); 142 assertEquals(absb, c.resolveConcreteMethod(absa, c)); 143 assertEquals(absb, c.resolveConcreteMethod(absb, c)); 144 assertEquals(abse, e.resolveConcreteMethod(absa, c)); 145 assertNull(e.resolveConcreteMethod(absb, c)); 146 assertEquals(abse, e.resolveConcreteMethod(abse, c)); 147 } 148 149 @Test 150 public void testVirtualMethod() { 151 ResolvedJavaType a = getType(A.class); 152 ResolvedJavaType b = getType(B.class); 153 ResolvedJavaType c = getType(C.class); 154 ResolvedJavaMethod v1a = getMethod(a, "v1"); 155 ResolvedJavaMethod v2a = getMethod(a, "v2"); 156 ResolvedJavaMethod v2b = getMethod(b, "v2"); 157 158 assertEquals(v1a, a.resolveConcreteMethod(v1a, c)); 159 assertEquals(v1a, b.resolveConcreteMethod(v1a, c)); 160 assertEquals(v1a, c.resolveConcreteMethod(v1a, c)); 161 assertEquals(v2a, a.resolveConcreteMethod(v2a, c)); 162 assertEquals(v2b, b.resolveConcreteMethod(v2a, c)); 163 assertEquals(v2b, b.resolveConcreteMethod(v2b, c)); 164 assertEquals(v2b, c.resolveConcreteMethod(v2a, c)); 165 assertEquals(v2b, c.resolveConcreteMethod(v2b, c)); 166 167 } 168 169 static ResolvedJavaMethod getMethod(ResolvedJavaType type, String methodName) { 170 for (ResolvedJavaMethod method : type.getDeclaredMethods()) { 171 if (method.getName().equals(methodName)) { 172 return method; 173 } 174 } 175 throw new IllegalArgumentException(); 176 } 177 178 protected ResolvedJavaType getType(Class<?> clazz) { 179 ResolvedJavaType type = metaAccess.lookupJavaType(clazz); 180 type.initialize(); 181 return type; 182 } 183 }