| /* |
| * Copyright (c) 2013, 2015, 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. |
| */ |
| package org.graalvm.compiler.hotspot.test; |
| |
| import static java.lang.reflect.Modifier.FINAL; |
| import static java.lang.reflect.Modifier.PRIVATE; |
| import static java.lang.reflect.Modifier.PROTECTED; |
| import static java.lang.reflect.Modifier.PUBLIC; |
| import static java.lang.reflect.Modifier.STATIC; |
| import static java.lang.reflect.Modifier.TRANSIENT; |
| import static java.lang.reflect.Modifier.VOLATILE; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
| |
| import jdk.vm.ci.hotspot.HotSpotResolvedJavaField; |
| import jdk.vm.ci.hotspot.HotSpotResolvedObjectType; |
| import jdk.vm.ci.meta.JavaType; |
| import jdk.vm.ci.meta.ResolvedJavaField; |
| |
| /** |
| * Tests {@link HotSpotResolvedJavaField} functionality. |
| */ |
| public class HotSpotResolvedJavaFieldTest extends HotSpotGraalCompilerTest { |
| |
| private static final Class<?>[] classesWithInternalFields = {Class.class, ClassLoader.class}; |
| |
| private static final Method createFieldMethod; |
| |
| static { |
| Method ret = null; |
| try { |
| Class<?> typeImpl = Class.forName("jdk.vm.ci.hotspot.HotSpotResolvedObjectTypeImpl"); |
| ret = typeImpl.getDeclaredMethod("createField", String.class, JavaType.class, long.class, int.class); |
| ret.setAccessible(true); |
| } catch (ClassNotFoundException | NoSuchMethodException | SecurityException e) { |
| e.printStackTrace(); |
| } |
| |
| createFieldMethod = ret; |
| } |
| |
| /** |
| * Same as {@code HotSpotModifiers.jvmFieldModifiers()} but works when using a JVMCI version |
| * prior to the introduction of that method. |
| */ |
| private int jvmFieldModifiers() { |
| GraalHotSpotVMConfig config = runtime().getVMConfig(); |
| int accEnum = config.getConstant("JVM_ACC_ENUM", Integer.class, 0x4000); |
| int accSynthetic = config.getConstant("JVM_ACC_SYNTHETIC", Integer.class, 0x1000); |
| return PUBLIC | PRIVATE | PROTECTED | STATIC | FINAL | VOLATILE | TRANSIENT | accEnum | accSynthetic; |
| } |
| |
| /** |
| * Tests that {@link HotSpotResolvedJavaField#getModifiers()} only includes the modifiers |
| * returned by {@link Field#getModifiers()}. Namely, it must not include |
| * {@code HotSpotResolvedJavaField#FIELD_INTERNAL_FLAG}. |
| */ |
| @Test |
| public void testModifiersForInternal() { |
| for (Class<?> c : classesWithInternalFields) { |
| HotSpotResolvedObjectType type = HotSpotResolvedObjectType.fromObjectClass(c); |
| for (ResolvedJavaField field : type.getInstanceFields(false)) { |
| if (field.isInternal()) { |
| Assert.assertEquals(0, ~jvmFieldModifiers() & field.getModifiers()); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Tests that {@code HotSpotResolvedObjectType#createField(String, JavaType, long, int)} always |
| * returns the same object for an internal field. |
| * |
| * @throws InvocationTargetException |
| * @throws IllegalArgumentException |
| * @throws IllegalAccessException |
| */ |
| @Test |
| public void testCachingForInternalFields() throws IllegalAccessException, IllegalArgumentException, InvocationTargetException { |
| Assert.assertTrue("HotSpotResolvedObjectTypeImpl.createField method not found", createFieldMethod != null); |
| for (Class<?> c : classesWithInternalFields) { |
| HotSpotResolvedObjectType type = HotSpotResolvedObjectType.fromObjectClass(c); |
| for (ResolvedJavaField field : type.getInstanceFields(false)) { |
| if (field.isInternal()) { |
| HotSpotResolvedJavaField expected = (HotSpotResolvedJavaField) field; |
| ResolvedJavaField actual = (ResolvedJavaField) createFieldMethod.invoke(type, expected.getName(), expected.getType(), expected.offset(), expected.getModifiers()); |
| Assert.assertEquals(expected, actual); |
| } |
| } |
| } |
| } |
| |
| @Test |
| public void testIsInObject() { |
| for (Field f : String.class.getDeclaredFields()) { |
| HotSpotResolvedJavaField rf = (HotSpotResolvedJavaField) getMetaAccess().lookupJavaField(f); |
| Assert.assertEquals(rf.toString(), rf.isInObject("a string"), !rf.isStatic()); |
| } |
| } |
| } |