| /* |
| * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @requires vm.jvmci |
| * @library ../../../../../ |
| * @modules java.base/jdk.internal.reflect |
| * jdk.internal.vm.ci/jdk.vm.ci.meta |
| * jdk.internal.vm.ci/jdk.vm.ci.runtime |
| * jdk.internal.vm.ci/jdk.vm.ci.common |
| * java.base/jdk.internal.misc |
| * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI -Djvmci.Compiler=null jdk.vm.ci.runtime.test.TestResolvedJavaType |
| */ |
| |
| package jdk.vm.ci.runtime.test; |
| |
| import static java.lang.reflect.Modifier.isAbstract; |
| import static java.lang.reflect.Modifier.isFinal; |
| import static java.lang.reflect.Modifier.isPrivate; |
| import static java.lang.reflect.Modifier.isProtected; |
| import static java.lang.reflect.Modifier.isPublic; |
| import static java.lang.reflect.Modifier.isStatic; |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Modifier; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.function.Supplier; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.junit.Test; |
| |
| import jdk.internal.reflect.ConstantPool; |
| import jdk.vm.ci.common.JVMCIError; |
| import jdk.vm.ci.meta.Assumptions.AssumptionResult; |
| import jdk.vm.ci.meta.JavaConstant; |
| import jdk.vm.ci.meta.JavaKind; |
| import jdk.vm.ci.meta.ResolvedJavaField; |
| import jdk.vm.ci.meta.ResolvedJavaMethod; |
| import jdk.vm.ci.meta.ResolvedJavaType; |
| |
| /** |
| * Tests for {@link ResolvedJavaType}. |
| */ |
| @SuppressWarnings("unchecked") |
| public class TestResolvedJavaType extends TypeUniverse { |
| private static final Class<? extends Annotation> SIGNATURE_POLYMORPHIC_CLASS = findPolymorphicSignatureClass(); |
| |
| public TestResolvedJavaType() { |
| } |
| |
| private static Class<? extends Annotation> findPolymorphicSignatureClass() { |
| Class<? extends Annotation> signaturePolyAnnotation = null; |
| try { |
| for (Class<?> clazz : TestResolvedJavaType.class.getClassLoader().loadClass("java.lang.invoke.MethodHandle").getDeclaredClasses()) { |
| if (clazz.getName().endsWith("PolymorphicSignature") && Annotation.class.isAssignableFrom(clazz)) { |
| signaturePolyAnnotation = (Class<? extends Annotation>) clazz; |
| break; |
| } |
| } |
| } catch (Throwable e) { |
| throw new AssertionError("Could not find annotation PolymorphicSignature in java.lang.invoke.MethodHandle", e); |
| } |
| assertNotNull(signaturePolyAnnotation); |
| return signaturePolyAnnotation; |
| } |
| |
| @Test |
| public void findInstanceFieldWithOffsetTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| Set<Field> reflectionFields = getInstanceFields(c, true); |
| for (Field f : reflectionFields) { |
| ResolvedJavaField rf = lookupField(type.getInstanceFields(true), f); |
| assertNotNull(rf); |
| long offset = isStatic(f.getModifiers()) ? unsafe.staticFieldOffset(f) : unsafe.objectFieldOffset(f); |
| ResolvedJavaField result = type.findInstanceFieldWithOffset(offset, rf.getJavaKind()); |
| assertNotNull(result); |
| assertTrue(fieldsEqual(f, result)); |
| } |
| } |
| } |
| |
| @Test |
| public void isInterfaceTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| boolean expected = c.isInterface(); |
| boolean actual = type.isInterface(); |
| assertEquals(expected, actual); |
| } |
| } |
| |
| @Test |
| public void isInstanceClassTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| boolean expected = !c.isArray() && !c.isPrimitive() && !c.isInterface(); |
| boolean actual = type.isInstanceClass(); |
| assertEquals(expected, actual); |
| } |
| } |
| |
| @Test |
| public void isArrayTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| boolean expected = c.isArray(); |
| boolean actual = type.isArray(); |
| assertEquals(expected, actual); |
| } |
| } |
| |
| @Test |
| public void getHostClassTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| ResolvedJavaType host = type.getHostClass(); |
| assertNull(host); |
| } |
| |
| class LocalClass {} |
| Cloneable clone = new Cloneable() {}; |
| assertNull(metaAccess.lookupJavaType(LocalClass.class).getHostClass()); |
| assertNull(metaAccess.lookupJavaType(clone.getClass()).getHostClass()); |
| |
| Supplier<Runnable> lambda = () -> () -> System.out.println("run"); |
| ResolvedJavaType lambdaType = metaAccess.lookupJavaType(lambda.getClass()); |
| ResolvedJavaType nestedLambdaType = metaAccess.lookupJavaType(lambda.get().getClass()); |
| assertNotNull(lambdaType.getHostClass()); |
| assertNotNull(nestedLambdaType.getHostClass()); |
| assertEquals(lambdaType.getHostClass(), nestedLambdaType.getHostClass()); |
| } |
| |
| @Test |
| public void getModifiersTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| int mask = Modifier.classModifiers() & ~Modifier.STATIC; |
| int expected = c.getModifiers() & mask; |
| int actual = type.getModifiers() & mask; |
| Class<?> elementalType = c; |
| while (elementalType.isArray()) { |
| elementalType = elementalType.getComponentType(); |
| } |
| if (elementalType.isMemberClass()) { |
| // member class get their modifiers from the inner-class attribute in the JVM and |
| // from the classfile header in jvmci |
| expected &= ~(Modifier.PUBLIC | Modifier.PRIVATE | Modifier.PROTECTED); |
| actual &= ~(Modifier.PUBLIC | Modifier.PRIVATE | Modifier.PROTECTED); |
| } |
| assertEquals(String.format("%s: 0x%x != 0x%x", type, expected, actual), expected, actual); |
| } |
| } |
| |
| @Test |
| public void isAssignableFromTest() { |
| Class<?>[] all = classes.toArray(new Class<?>[classes.size()]); |
| for (int i = 0; i < all.length; i++) { |
| Class<?> c1 = all[i]; |
| for (int j = i; j < all.length; j++) { |
| Class<?> c2 = all[j]; |
| ResolvedJavaType t1 = metaAccess.lookupJavaType(c1); |
| ResolvedJavaType t2 = metaAccess.lookupJavaType(c2); |
| boolean expected = c1.isAssignableFrom(c2); |
| boolean actual = t1.isAssignableFrom(t2); |
| assertEquals(expected, actual); |
| if (expected && t1 != t2) { |
| assertFalse(t2.isAssignableFrom(t1)); |
| } |
| } |
| } |
| } |
| |
| @Test |
| public void isInstanceTest() { |
| for (ConstantValue cv : constants()) { |
| JavaConstant c = cv.value; |
| if (c.getJavaKind() == JavaKind.Object && !c.isNull()) { |
| ResolvedJavaType cType = metaAccess.lookupJavaType(c); |
| for (ResolvedJavaType t : javaTypes) { |
| if (t.isAssignableFrom(cType)) { |
| assertTrue(t.isInstance(c)); |
| } else { |
| assertFalse(t.isInstance(c)); |
| } |
| } |
| } |
| } |
| } |
| |
| @Test |
| public void getSuperclassTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| Class<?> expected = c.getSuperclass(); |
| ResolvedJavaType actual = type.getSuperclass(); |
| if (expected == null) { |
| assertTrue(actual == null); |
| } else { |
| assertNotNull(actual); |
| assertTrue(actual.equals(metaAccess.lookupJavaType(expected))); |
| } |
| } |
| } |
| |
| @Test |
| public void getInterfacesTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| Class<?>[] expected = c.getInterfaces(); |
| ResolvedJavaType[] actual = type.getInterfaces(); |
| assertEquals(expected.length, actual.length); |
| for (int i = 0; i < expected.length; i++) { |
| assertTrue(actual[i].equals(metaAccess.lookupJavaType(expected[i]))); |
| } |
| } |
| } |
| |
| public Class<?> getSupertype(Class<?> c) { |
| assert !c.isPrimitive(); |
| if (c.isArray()) { |
| Class<?> componentType = c.getComponentType(); |
| if (componentType.isPrimitive() || componentType == Object.class) { |
| return Object.class; |
| } |
| return getArrayClass(getSupertype(componentType)); |
| } |
| if (c.isInterface()) { |
| return Object.class; |
| } |
| return c.getSuperclass(); |
| } |
| |
| public Class<?> findLeastCommonAncestor(Class<?> c1Initial, Class<?> c2Initial) { |
| if (c1Initial.isPrimitive() || c2Initial.isPrimitive()) { |
| return null; |
| } else { |
| Class<?> c1 = c1Initial; |
| Class<?> c2 = c2Initial; |
| while (true) { |
| if (c1.isAssignableFrom(c2)) { |
| return c1; |
| } |
| if (c2.isAssignableFrom(c1)) { |
| return c2; |
| } |
| c1 = getSupertype(c1); |
| c2 = getSupertype(c2); |
| } |
| } |
| } |
| |
| @Test |
| public void findLeastCommonAncestorTest() { |
| Class<?>[] all = classes.toArray(new Class<?>[classes.size()]); |
| for (int i = 0; i < all.length; i++) { |
| Class<?> c1 = all[i]; |
| for (int j = i; j < all.length; j++) { |
| Class<?> c2 = all[j]; |
| ResolvedJavaType t1 = metaAccess.lookupJavaType(c1); |
| ResolvedJavaType t2 = metaAccess.lookupJavaType(c2); |
| Class<?> expected = findLeastCommonAncestor(c1, c2); |
| ResolvedJavaType actual = t1.findLeastCommonAncestor(t2); |
| if (expected == null) { |
| assertTrue(actual == null); |
| } else { |
| assertNotNull(actual); |
| assertTrue(actual.equals(metaAccess.lookupJavaType(expected))); |
| } |
| } |
| } |
| } |
| |
| private static class Base { |
| } |
| |
| abstract static class Abstract1 extends Base { |
| } |
| |
| interface Interface1 { |
| } |
| |
| static class Concrete1 extends Abstract1 { |
| } |
| |
| static class Concrete2 extends Abstract1 implements Interface1 { |
| } |
| |
| static class Concrete3 extends Concrete2 { |
| } |
| |
| static final class Final1 extends Abstract1 { |
| } |
| |
| abstract static class Abstract4 extends Concrete3 { |
| } |
| |
| void checkConcreteSubtype(ResolvedJavaType type, ResolvedJavaType expected) { |
| AssumptionResult<ResolvedJavaType> leafConcreteSubtype = type.findLeafConcreteSubtype(); |
| if (leafConcreteSubtype == null) { |
| // findLeafConcreteSubtype() is conservative |
| } else { |
| if (expected == null) { |
| assertNull(leafConcreteSubtype); |
| } else { |
| assertTrue(leafConcreteSubtype.getResult().equals(expected)); |
| } |
| assertTrue(!type.isLeaf() || leafConcreteSubtype.isAssumptionFree()); |
| } |
| |
| if (!type.isArray()) { |
| ResolvedJavaType arrayType = type.getArrayClass(); |
| AssumptionResult<ResolvedJavaType> arraySubtype = arrayType.findLeafConcreteSubtype(); |
| if (arraySubtype != null) { |
| assertEquals(arraySubtype.getResult(), arrayType); |
| } else { |
| // findLeafConcreteSubtype() method is conservative |
| } |
| } |
| } |
| |
| @Test |
| public void findLeafConcreteSubtypeTest() { |
| ResolvedJavaType base = metaAccess.lookupJavaType(Base.class); |
| checkConcreteSubtype(base, base); |
| |
| ResolvedJavaType a1 = metaAccess.lookupJavaType(Abstract1.class); |
| ResolvedJavaType c1 = metaAccess.lookupJavaType(Concrete1.class); |
| |
| checkConcreteSubtype(base, null); |
| checkConcreteSubtype(a1, c1); |
| checkConcreteSubtype(c1, c1); |
| |
| ResolvedJavaType i1 = metaAccess.lookupJavaType(Interface1.class); |
| ResolvedJavaType c2 = metaAccess.lookupJavaType(Concrete2.class); |
| |
| checkConcreteSubtype(base, null); |
| checkConcreteSubtype(a1, null); |
| checkConcreteSubtype(c1, c1); |
| checkConcreteSubtype(i1, c2); |
| checkConcreteSubtype(c2, c2); |
| |
| ResolvedJavaType c3 = metaAccess.lookupJavaType(Concrete3.class); |
| checkConcreteSubtype(c2, null); |
| checkConcreteSubtype(c3, c3); |
| |
| ResolvedJavaType a4 = metaAccess.lookupJavaType(Abstract4.class); |
| checkConcreteSubtype(c3, null); |
| checkConcreteSubtype(a4, null); |
| |
| ResolvedJavaType a1a = metaAccess.lookupJavaType(Abstract1[].class); |
| checkConcreteSubtype(a1a, null); |
| ResolvedJavaType i1a = metaAccess.lookupJavaType(Interface1[].class); |
| checkConcreteSubtype(i1a, null); |
| ResolvedJavaType c1a = metaAccess.lookupJavaType(Concrete1[].class); |
| checkConcreteSubtype(c1a, c1a); |
| ResolvedJavaType f1a = metaAccess.lookupJavaType(Final1[].class); |
| checkConcreteSubtype(f1a, f1a); |
| |
| ResolvedJavaType obja = metaAccess.lookupJavaType(Object[].class); |
| checkConcreteSubtype(obja, null); |
| |
| ResolvedJavaType inta = metaAccess.lookupJavaType(int[].class); |
| checkConcreteSubtype(inta, inta); |
| } |
| |
| interface NoImplementor { |
| } |
| |
| interface SingleImplementorInterface { |
| } |
| |
| static class SingleConcreteImplementor implements SingleImplementorInterface { |
| } |
| |
| interface SingleAbstractImplementorInterface { |
| } |
| |
| abstract static class SingleAbstractImplementor implements SingleAbstractImplementorInterface { |
| } |
| |
| interface MultiImplementorInterface { |
| } |
| |
| static class ConcreteImplementor1 implements MultiImplementorInterface { |
| } |
| |
| static class ConcreteImplementor2 implements MultiImplementorInterface { |
| } |
| |
| interface MultipleAbstractImplementorInterface { |
| } |
| |
| abstract static class MultiAbstractImplementor1 implements MultipleAbstractImplementorInterface { |
| } |
| |
| abstract static class MultiAbstractImplementor2 implements MultipleAbstractImplementorInterface { |
| } |
| |
| interface SingleAbstractImplementorInterface2 { |
| } |
| |
| interface ExtendedSingleImplementorInterface { |
| } |
| |
| abstract static class SingleAbstractImplementor2 implements SingleAbstractImplementorInterface2 { |
| } |
| |
| static class ConcreteTransitiveImplementor1 extends SingleAbstractImplementor2 implements ExtendedSingleImplementorInterface { |
| } |
| |
| static class ConcreteTransitiveImplementor2 extends SingleAbstractImplementor2 implements ExtendedSingleImplementorInterface { |
| } |
| |
| @Test |
| public void getSingleImplementorTest() { |
| ResolvedJavaType iNi = metaAccess.lookupJavaType(NoImplementor.class); |
| assertNull(iNi.getSingleImplementor()); |
| |
| ResolvedJavaType iSi = metaAccess.lookupJavaType(SingleImplementorInterface.class); |
| ResolvedJavaType cSi = metaAccess.lookupJavaType(SingleConcreteImplementor.class); |
| assertEquals(cSi, iSi.getSingleImplementor()); |
| |
| ResolvedJavaType iSai = metaAccess.lookupJavaType(SingleAbstractImplementorInterface.class); |
| ResolvedJavaType aSai = metaAccess.lookupJavaType(SingleAbstractImplementor.class); |
| assertEquals(aSai, iSai.getSingleImplementor()); |
| |
| ResolvedJavaType iMi = metaAccess.lookupJavaType(MultiImplementorInterface.class); |
| metaAccess.lookupJavaType(ConcreteImplementor1.class); |
| metaAccess.lookupJavaType(ConcreteImplementor2.class); |
| assertEquals(iMi, iMi.getSingleImplementor()); |
| |
| ResolvedJavaType iMai = metaAccess.lookupJavaType(MultipleAbstractImplementorInterface.class); |
| metaAccess.lookupJavaType(MultiAbstractImplementor1.class); |
| metaAccess.lookupJavaType(MultiAbstractImplementor2.class); |
| assertEquals(iMai, iMai.getSingleImplementor()); |
| |
| ResolvedJavaType iSai2 = metaAccess.lookupJavaType(SingleAbstractImplementorInterface2.class); |
| ResolvedJavaType aSai2 = metaAccess.lookupJavaType(SingleAbstractImplementor2.class); |
| metaAccess.lookupJavaType(ConcreteTransitiveImplementor1.class); |
| metaAccess.lookupJavaType(ConcreteTransitiveImplementor2.class); |
| assertEquals(aSai2, iSai2.getSingleImplementor()); |
| } |
| |
| @Test(expected = JVMCIError.class) |
| public void getSingleImplementorTestClassReceiver() { |
| ResolvedJavaType base = metaAccess.lookupJavaType(Base.class); |
| base.getSingleImplementor(); |
| } |
| |
| @Test(expected = JVMCIError.class) |
| public void getSingleImplementorTestPrimitiveReceiver() { |
| ResolvedJavaType primitive = metaAccess.lookupJavaType(int.class); |
| primitive.getSingleImplementor(); |
| } |
| |
| @Test |
| public void getComponentTypeTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| Class<?> expected = c.getComponentType(); |
| ResolvedJavaType actual = type.getComponentType(); |
| if (expected == null) { |
| assertNull(actual); |
| } else { |
| assertTrue(actual.equals(metaAccess.lookupJavaType(expected))); |
| } |
| } |
| } |
| |
| @Test |
| public void getArrayClassTest() { |
| for (Class<?> c : classes) { |
| if (c != void.class) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| Class<?> expected = getArrayClass(c); |
| ResolvedJavaType actual = type.getArrayClass(); |
| assertTrue(actual.equals(metaAccess.lookupJavaType(expected))); |
| } |
| } |
| } |
| |
| static class Declarations { |
| |
| final Method implementation; |
| final Set<Method> declarations; |
| |
| Declarations(Method impl) { |
| this.implementation = impl; |
| declarations = new HashSet<>(); |
| } |
| } |
| |
| /** |
| * See <a href="http://docs.oracle.com/javase/specs/jvms/se7/html/jvms-5.html#jvms-5.4.5">Method |
| * overriding</a>. |
| */ |
| static boolean isOverriderOf(Method impl, Method m) { |
| if (!isPrivate(m.getModifiers()) && !isFinal(m.getModifiers())) { |
| if (m.getName().equals(impl.getName())) { |
| if (m.getReturnType() == impl.getReturnType()) { |
| if (Arrays.equals(m.getParameterTypes(), impl.getParameterTypes())) { |
| if (isPublic(m.getModifiers()) || isProtected(m.getModifiers())) { |
| // m is public or protected |
| return isPublic(impl.getModifiers()) || isProtected(impl.getModifiers()); |
| } else { |
| // m is package-private |
| return impl.getDeclaringClass().getPackage() == m.getDeclaringClass().getPackage(); |
| } |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| static final Map<Class<?>, VTable> vtables = new HashMap<>(); |
| |
| static class VTable { |
| |
| final Map<NameAndSignature, Method> methods = new HashMap<>(); |
| } |
| |
| static synchronized VTable getVTable(Class<?> c) { |
| VTable vtable = vtables.get(c); |
| if (vtable == null) { |
| vtable = new VTable(); |
| if (c != Object.class) { |
| VTable superVtable = getVTable(c.getSuperclass()); |
| vtable.methods.putAll(superVtable.methods); |
| } |
| for (Method m : c.getDeclaredMethods()) { |
| if (!isStatic(m.getModifiers()) && !isPrivate(m.getModifiers())) { |
| if (isAbstract(m.getModifiers())) { |
| // A subclass makes a concrete method in a superclass abstract |
| vtable.methods.remove(new NameAndSignature(m)); |
| } else { |
| vtable.methods.put(new NameAndSignature(m), m); |
| } |
| } |
| } |
| vtables.put(c, vtable); |
| } |
| return vtable; |
| } |
| |
| static Set<Method> findDeclarations(Method impl, Class<?> c) { |
| Set<Method> declarations = new HashSet<>(); |
| NameAndSignature implSig = new NameAndSignature(impl); |
| if (c != null) { |
| for (Method m : c.getDeclaredMethods()) { |
| if (new NameAndSignature(m).equals(implSig)) { |
| declarations.add(m); |
| break; |
| } |
| } |
| if (!c.isInterface()) { |
| declarations.addAll(findDeclarations(impl, c.getSuperclass())); |
| } |
| for (Class<?> i : c.getInterfaces()) { |
| declarations.addAll(findDeclarations(impl, i)); |
| } |
| } |
| return declarations; |
| } |
| |
| @Test |
| public void resolveMethodTest() { |
| ResolvedJavaType context = metaAccess.lookupJavaType(TestResolvedJavaType.class); |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| if (c.isInterface()) { |
| for (Method m : c.getDeclaredMethods()) { |
| ResolvedJavaMethod resolved = metaAccess.lookupJavaMethod(m); |
| ResolvedJavaMethod impl = type.resolveMethod(resolved, context); |
| assertEquals(m.toString(), null, impl); |
| } |
| } else if (c.isPrimitive()) { |
| assertEquals("No methods expected", c.getDeclaredMethods().length, 0); |
| } else { |
| VTable vtable = getVTable(c); |
| for (Method impl : vtable.methods.values()) { |
| Set<Method> decls = findDeclarations(impl, c); |
| for (Method decl : decls) { |
| ResolvedJavaMethod m = metaAccess.lookupJavaMethod(decl); |
| if (m.isPublic()) { |
| ResolvedJavaMethod resolvedmethod = type.resolveMethod(m, context); |
| if (isSignaturePolymorphic(m)) { |
| // Signature polymorphic methods must not be resolved |
| assertNull(resolvedmethod); |
| } else { |
| ResolvedJavaMethod i = metaAccess.lookupJavaMethod(impl); |
| assertEquals(m.toString(), i, resolvedmethod); |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| @Test |
| public void resolveConcreteMethodTest() { |
| ResolvedJavaType context = metaAccess.lookupJavaType(TestResolvedJavaType.class); |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| if (c.isInterface()) { |
| for (Method m : c.getDeclaredMethods()) { |
| ResolvedJavaMethod resolved = metaAccess.lookupJavaMethod(m); |
| ResolvedJavaMethod impl = type.resolveConcreteMethod(resolved, context); |
| assertEquals(m.toString(), null, impl); |
| } |
| } else if (c.isPrimitive()) { |
| assertEquals("No methods expected", c.getDeclaredMethods().length, 0); |
| } else { |
| VTable vtable = getVTable(c); |
| for (Method impl : vtable.methods.values()) { |
| Set<Method> decls = findDeclarations(impl, c); |
| for (Method decl : decls) { |
| ResolvedJavaMethod m = metaAccess.lookupJavaMethod(decl); |
| if (m.isPublic()) { |
| ResolvedJavaMethod resolvedMethod = type.resolveConcreteMethod(m, context); |
| if (isSignaturePolymorphic(m)) { |
| // Signature polymorphic methods must not be resolved |
| assertNull(String.format("Got: %s", resolvedMethod), resolvedMethod); |
| } else { |
| ResolvedJavaMethod i = metaAccess.lookupJavaMethod(impl); |
| assertEquals(i, resolvedMethod); |
| } |
| } |
| } |
| } |
| for (Method m : c.getDeclaredMethods()) { |
| ResolvedJavaMethod impl = type.resolveConcreteMethod(metaAccess.lookupJavaMethod(m), context); |
| ResolvedJavaMethod expected = isAbstract(m.getModifiers()) ? null : impl; |
| assertEquals(type + " " + m.toString(), expected, impl); |
| } |
| } |
| } |
| } |
| |
| @Test |
| public void findUniqueConcreteMethodTest() throws NoSuchMethodException { |
| ResolvedJavaMethod thisMethod = metaAccess.lookupJavaMethod(getClass().getDeclaredMethod("findUniqueConcreteMethodTest")); |
| ResolvedJavaMethod ucm = metaAccess.lookupJavaType(getClass()).findUniqueConcreteMethod(thisMethod).getResult(); |
| assertEquals(thisMethod, ucm); |
| } |
| |
| public static Set<Field> getInstanceFields(Class<?> c, boolean includeSuperclasses) { |
| if (c.isArray() || c.isPrimitive() || c.isInterface()) { |
| return Collections.emptySet(); |
| } |
| Set<Field> result = new HashSet<>(); |
| for (Field f : c.getDeclaredFields()) { |
| if (!Modifier.isStatic(f.getModifiers())) { |
| result.add(f); |
| } |
| } |
| if (includeSuperclasses && c != Object.class) { |
| result.addAll(getInstanceFields(c.getSuperclass(), true)); |
| } |
| return result; |
| } |
| |
| public static Set<Field> getStaticFields(Class<?> c) { |
| Set<Field> result = new HashSet<>(); |
| for (Field f : c.getDeclaredFields()) { |
| if (Modifier.isStatic(f.getModifiers())) { |
| result.add(f); |
| } |
| } |
| return result; |
| } |
| |
| public boolean fieldsEqual(Field f, ResolvedJavaField rjf) { |
| return rjf.getDeclaringClass().equals(metaAccess.lookupJavaType(f.getDeclaringClass())) && rjf.getName().equals(f.getName()) && |
| rjf.getType().resolve(rjf.getDeclaringClass()).equals(metaAccess.lookupJavaType(f.getType())); |
| } |
| |
| public ResolvedJavaField lookupField(ResolvedJavaField[] fields, Field key) { |
| for (ResolvedJavaField rf : fields) { |
| if (fieldsEqual(key, rf)) { |
| return rf; |
| } |
| } |
| return null; |
| } |
| |
| public Field lookupField(Set<Field> fields, ResolvedJavaField key) { |
| for (Field f : fields) { |
| if (fieldsEqual(f, key)) { |
| return f; |
| } |
| } |
| return null; |
| } |
| |
| private static boolean isHiddenFromReflection(ResolvedJavaField f) { |
| if (f.getDeclaringClass().equals(metaAccess.lookupJavaType(Throwable.class)) && f.getName().equals("backtrace")) { |
| return true; |
| } |
| if (f.getDeclaringClass().equals(metaAccess.lookupJavaType(ConstantPool.class)) && f.getName().equals("constantPoolOop")) { |
| return true; |
| } |
| if (f.getDeclaringClass().equals(metaAccess.lookupJavaType(Class.class)) && f.getName().equals("classLoader")) { |
| return true; |
| } |
| return false; |
| } |
| |
| @Test |
| public void getInstanceFieldsTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| for (boolean includeSuperclasses : new boolean[]{true, false}) { |
| Set<Field> expected = getInstanceFields(c, includeSuperclasses); |
| ResolvedJavaField[] actual = type.getInstanceFields(includeSuperclasses); |
| for (Field f : expected) { |
| assertNotNull(lookupField(actual, f)); |
| } |
| for (ResolvedJavaField rf : actual) { |
| if (!isHiddenFromReflection(rf)) { |
| assertEquals(rf.toString(), lookupField(expected, rf) != null, !rf.isInternal()); |
| } |
| } |
| |
| // Test stability of getInstanceFields |
| ResolvedJavaField[] actual2 = type.getInstanceFields(includeSuperclasses); |
| assertArrayEquals(actual, actual2); |
| } |
| } |
| } |
| |
| @Test |
| public void getStaticFieldsTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| Set<Field> expected = getStaticFields(c); |
| ResolvedJavaField[] actual = type.getStaticFields(); |
| for (Field f : expected) { |
| assertNotNull(lookupField(actual, f)); |
| } |
| for (ResolvedJavaField rf : actual) { |
| if (!isHiddenFromReflection(rf)) { |
| assertEquals(lookupField(expected, rf) != null, !rf.isInternal()); |
| } |
| } |
| |
| // Test stability of getStaticFields |
| ResolvedJavaField[] actual2 = type.getStaticFields(); |
| assertArrayEquals(actual, actual2); |
| } |
| } |
| |
| @Test |
| public void getDeclaredMethodsTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| Method[] raw = c.getDeclaredMethods(); |
| Set<ResolvedJavaMethod> expected = new HashSet<>(); |
| for (Method m : raw) { |
| ResolvedJavaMethod resolvedMethod = metaAccess.lookupJavaMethod(m); |
| assertNotNull(resolvedMethod); |
| expected.add(resolvedMethod); |
| } |
| Set<ResolvedJavaMethod> actual = new HashSet<>(Arrays.asList(type.getDeclaredMethods())); |
| assertEquals(expected, actual); |
| } |
| } |
| |
| static class A { |
| static String name = "foo"; |
| } |
| |
| static class B extends A { |
| } |
| |
| static class C { |
| } |
| |
| static class D { |
| void foo() { |
| // use of assertions causes the class to have a <clinit> |
| assert getClass() != null; |
| } |
| } |
| |
| static class SubD extends D { |
| |
| } |
| |
| @Test |
| public void getClassInitializerTest() { |
| assertNotNull(metaAccess.lookupJavaType(A.class).getClassInitializer()); |
| assertNotNull(metaAccess.lookupJavaType(D.class).getClassInitializer()); |
| assertNull(metaAccess.lookupJavaType(B.class).getClassInitializer()); |
| assertNull(metaAccess.lookupJavaType(C.class).getClassInitializer()); |
| assertNull(metaAccess.lookupJavaType(int.class).getClassInitializer()); |
| assertNull(metaAccess.lookupJavaType(void.class).getClassInitializer()); |
| } |
| |
| @Test |
| public void getAnnotationsTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| assertArrayEquals(c.getAnnotations(), type.getAnnotations()); |
| } |
| } |
| |
| @Test |
| public void getAnnotationTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| for (Annotation a : c.getAnnotations()) { |
| assertEquals(a, type.getAnnotation(a.annotationType())); |
| } |
| } |
| } |
| |
| @Test |
| public void memberClassesTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| assertEquals(c.isLocalClass(), type.isLocal()); |
| assertEquals(c.isMemberClass(), type.isMember()); |
| Class<?> enclc = c.getEnclosingClass(); |
| ResolvedJavaType enclt = type.getEnclosingType(); |
| assertFalse(enclc == null ^ enclt == null); |
| if (enclc != null) { |
| assertEquals(enclt, metaAccess.lookupJavaType(enclc)); |
| } |
| } |
| } |
| |
| @Test |
| public void isLeafTest() { |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| ResolvedJavaType arrayType = c != void.class ? metaAccess.lookupJavaType(getArrayClass(c)) : null; |
| if (c.isPrimitive()) { |
| assertTrue(type.isLeaf()); |
| assertTrue(arrayType == null || arrayType.isLeaf()); |
| } else { |
| assertTrue(c.toString(), type.isLeaf() == arrayType.isLeaf()); |
| if (!c.isArray()) { |
| assertTrue(c.toString(), type.isLeaf() == Modifier.isFinal(c.getModifiers())); |
| } |
| } |
| } |
| } |
| |
| static class TrivialCloneable implements Cloneable { |
| @Override |
| protected Object clone() { |
| return new TrivialCloneable(); |
| } |
| } |
| |
| @Test |
| public void isCloneableWithAllocationTest() { |
| ResolvedJavaType cloneable = metaAccess.lookupJavaType(Cloneable.class); |
| for (Class<?> c : classes) { |
| ResolvedJavaType type = metaAccess.lookupJavaType(c); |
| if (type.isCloneableWithAllocation()) { |
| // Only Cloneable types should be allocation cloneable |
| assertTrue(c.toString(), cloneable.isAssignableFrom(type)); |
| } |
| } |
| /* |
| * We can't know for sure which types should be allocation cloneable on a particular |
| * platform but assume that at least totally trivial objects should be. |
| */ |
| ResolvedJavaType trivialCloneable = metaAccess.lookupJavaType(TrivialCloneable.class); |
| assertTrue(trivialCloneable.toString(), trivialCloneable.isCloneableWithAllocation()); |
| } |
| |
| @Test |
| public void findMethodTest() { |
| try { |
| ResolvedJavaMethod findFoo = metaAccess.lookupJavaType(D.class).findMethod("foo", metaAccess.parseMethodDescriptor("()V")); |
| ResolvedJavaMethod expectedFoo = metaAccess.lookupJavaMethod(D.class.getDeclaredMethod("foo")); |
| assertEquals(expectedFoo, findFoo); |
| |
| ResolvedJavaMethod wrongReturnTypeFoo = metaAccess.lookupJavaType(D.class).findMethod("foo", metaAccess.parseMethodDescriptor("()I")); |
| assertNull(wrongReturnTypeFoo); |
| |
| ResolvedJavaMethod wrongArgumentsFoo = metaAccess.lookupJavaType(D.class).findMethod("foo", metaAccess.parseMethodDescriptor("(I)V")); |
| assertNull(wrongArgumentsFoo); |
| |
| ResolvedJavaMethod wrongNameFoo = metaAccess.lookupJavaType(D.class).findMethod("bar", metaAccess.parseMethodDescriptor("()V")); |
| assertNull(wrongNameFoo); |
| |
| ResolvedJavaMethod wrongClassFoo = metaAccess.lookupJavaType(SubD.class).findMethod("foo", metaAccess.parseMethodDescriptor("()V")); |
| assertNull(wrongClassFoo); |
| } catch (NoSuchMethodException | SecurityException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| private Method findTestMethod(Method apiMethod) { |
| String testName = apiMethod.getName() + "Test"; |
| for (Method m : getClass().getDeclaredMethods()) { |
| if (m.getName().equals(testName) && m.getAnnotation(Test.class) != null) { |
| return m; |
| } |
| } |
| return null; |
| } |
| |
| // @formatter:off |
| private static final String[] untestedApiMethods = { |
| "initialize", |
| "isPrimitive", |
| "newArray", |
| "getDeclaredConstructors", |
| "isInitialized", |
| "isLinked", |
| "getJavaClass", |
| "getObjectHub", |
| "hasFinalizableSubclass", |
| "hasFinalizer", |
| "getSourceFileName", |
| "getClassFilePath", |
| "isLocal", |
| "isJavaLangObject", |
| "isMember", |
| "getElementalType", |
| "getEnclosingType", |
| "$jacocoInit", |
| "isCpiSet", |
| "getCorrespondingCpi", |
| "setCorrespondingCpi" |
| }; |
| // @formatter:on |
| |
| /** |
| * Ensures that any new methods added to {@link ResolvedJavaMethod} either have a test written |
| * for them or are added to {@link #untestedApiMethods}. |
| */ |
| @Test |
| public void testCoverage() { |
| Set<String> known = new HashSet<>(Arrays.asList(untestedApiMethods)); |
| for (Method m : ResolvedJavaType.class.getDeclaredMethods()) { |
| if (findTestMethod(m) == null) { |
| assertTrue("test missing for " + m, known.contains(m.getName())); |
| } else { |
| assertFalse("test should be removed from untestedApiMethods" + m, known.contains(m.getName())); |
| } |
| } |
| } |
| |
| private static boolean isSignaturePolymorphic(ResolvedJavaMethod method) { |
| return method.getAnnotation(SIGNATURE_POLYMORPHIC_CLASS) != null; |
| } |
| } |