Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/ClassSubstitutions.java @ 11959:23ccaa863eda
made CodeCacheProvider independent of MetaAccessProvider (GRAAL-511)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Thu, 10 Oct 2013 16:14:55 +0200 |
parents | 7e7edb86fb43 |
children | 24353c21ef34 |
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/* * Copyright (c) 2012, 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 com.oracle.graal.hotspot.replacements; import static com.oracle.graal.hotspot.replacements.HotSpotReplacementsUtil.*; import static com.oracle.graal.nodes.PiNode.*; import java.lang.reflect.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.api.replacements.*; import com.oracle.graal.hotspot.nodes.*; import com.oracle.graal.nodes.calc.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.word.*; /** * Substitutions for {@link java.lang.Class} methods. */ @ClassSubstitution(java.lang.Class.class) public class ClassSubstitutions { @MacroSubstitution(macro = ClassGetModifiersNode.class, isStatic = false) @MethodSubstitution(isStatic = false) public static int getModifiers(final Class<?> thisObj) { Word klass = loadWordFromObject(thisObj, klassOffset()); if (klass.equal(0)) { // Class for primitive type return Modifier.ABSTRACT | Modifier.FINAL | Modifier.PUBLIC; } else { return klass.readInt(klassModifierFlagsOffset(), LocationIdentity.FINAL_LOCATION); } } @MacroSubstitution(macro = ClassIsInterfaceNode.class, isStatic = false) @MethodSubstitution(isStatic = false) public static boolean isInterface(final Class<?> thisObj) { Word klass = loadWordFromObject(thisObj, klassOffset()); if (klass.equal(0)) { return false; } else { int accessFlags = klass.readInt(klassAccessFlagsOffset(), LocationIdentity.FINAL_LOCATION); return (accessFlags & Modifier.INTERFACE) != 0; } } @MacroSubstitution(macro = ClassIsArrayNode.class, isStatic = false) @MethodSubstitution(isStatic = false) public static boolean isArray(final Class<?> thisObj) { Word klass = loadWordFromObject(thisObj, klassOffset()); if (klass.equal(0)) { return false; } else { return (readLayoutHelper(klass) & arrayKlassLayoutHelperIdentifier()) != 0; } } @MacroSubstitution(macro = ClassIsPrimitiveNode.class, isStatic = false) @MethodSubstitution(isStatic = false) public static boolean isPrimitive(final Class<?> thisObj) { Word klass = loadWordFromObject(thisObj, klassOffset()); return klass.equal(0); } @MacroSubstitution(macro = ClassGetSuperclassNode.class, isStatic = false) @MethodSubstitution(isStatic = false) public static Class<?> getSuperclass(final Class<?> thisObj) { Word klass = loadWordFromObject(thisObj, klassOffset()); if (klass.notEqual(0)) { int accessFlags = klass.readInt(klassAccessFlagsOffset(), LocationIdentity.FINAL_LOCATION); if ((accessFlags & Modifier.INTERFACE) == 0) { if ((readLayoutHelper(klass) & arrayKlassLayoutHelperIdentifier()) != 0) { return Object.class; } else { Word superKlass = klass.readWord(klassSuperKlassOffset(), LocationIdentity.FINAL_LOCATION); if (superKlass.equal(0)) { return null; } else { return piCast(superKlass.readObject(classMirrorOffset(), LocationIdentity.FINAL_LOCATION), Class.class, true, true); } } } } return null; } @MacroSubstitution(macro = ClassGetComponentTypeNode.class, isStatic = false) @MethodSubstitution(isStatic = false) public static Class<?> getComponentType(final Class<?> thisObj) { Word klass = loadWordFromObject(thisObj, klassOffset()); if (klass.notEqual(0)) { if ((readLayoutHelper(klass) & arrayKlassLayoutHelperIdentifier()) != 0) { return piCast(klass.readObject(arrayKlassComponentMirrorOffset(), LocationIdentity.FINAL_LOCATION), Class.class, true, true); } } return null; } @MacroSubstitution(macro = ClassIsInstanceNode.class, isStatic = false) @MethodSubstitution(isStatic = false) public static boolean isInstance(final Class<?> thisObj, Object obj) { return !isPrimitive(thisObj) && ConditionalNode.materializeIsInstance(thisObj, obj); } @MacroSubstitution(macro = ClassCastNode.class, isStatic = false) public static native Object cast(final Class<?> thisObj, Object obj); }