| /* |
| * Copyright (c) 2013, 2014, 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.nodes.java; |
| |
| import java.lang.reflect.Modifier; |
| |
| import org.graalvm.compiler.core.common.type.StampFactory; |
| import org.graalvm.compiler.graph.Node; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.graph.spi.Canonicalizable; |
| import org.graalvm.compiler.graph.spi.CanonicalizerTool; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.FrameState; |
| import org.graalvm.compiler.nodes.ValueNode; |
| |
| import jdk.vm.ci.meta.MetaAccessProvider; |
| import jdk.vm.ci.meta.ResolvedJavaType; |
| |
| @NodeInfo |
| public class DynamicNewInstanceNode extends AbstractNewObjectNode implements Canonicalizable { |
| public static final NodeClass<DynamicNewInstanceNode> TYPE = NodeClass.create(DynamicNewInstanceNode.class); |
| |
| @Input ValueNode clazz; |
| |
| /** |
| * Class pointer to class.class needs to be exposed earlier than this node is lowered so that it |
| * can be replaced by the AOT machinery. If it's not needed for lowering this input can be |
| * ignored. |
| */ |
| @OptionalInput ValueNode classClass; |
| |
| public DynamicNewInstanceNode(ValueNode clazz, boolean fillContents) { |
| this(TYPE, clazz, fillContents, null); |
| } |
| |
| protected DynamicNewInstanceNode(NodeClass<? extends DynamicNewInstanceNode> c, ValueNode clazz, boolean fillContents, FrameState stateBefore) { |
| super(c, StampFactory.objectNonNull(), fillContents, stateBefore); |
| this.clazz = clazz; |
| } |
| |
| public ValueNode getInstanceType() { |
| return clazz; |
| } |
| |
| @Override |
| public Node canonical(CanonicalizerTool tool) { |
| if (clazz.isConstant()) { |
| ResolvedJavaType type = tool.getConstantReflection().asJavaType(clazz.asConstant()); |
| if (type != null && type.isInitialized() && !throwsInstantiationException(type, tool.getMetaAccess())) { |
| return createNewInstanceNode(type); |
| } |
| } |
| return this; |
| } |
| |
| /** Hook for subclasses to instantiate a subclass of {@link NewInstanceNode}. */ |
| protected NewInstanceNode createNewInstanceNode(ResolvedJavaType type) { |
| return new NewInstanceNode(type, fillContents(), stateBefore()); |
| } |
| |
| public static boolean throwsInstantiationException(Class<?> type, Class<?> classClass) { |
| return type.isPrimitive() || type.isArray() || type.isInterface() || Modifier.isAbstract(type.getModifiers()) || type == classClass; |
| } |
| |
| public static boolean throwsInstantiationException(ResolvedJavaType type, MetaAccessProvider metaAccess) { |
| return type.isPrimitive() || type.isArray() || type.isInterface() || Modifier.isAbstract(type.getModifiers()) || type.equals(metaAccess.lookupJavaType(Class.class)); |
| } |
| |
| public ValueNode getClassClass() { |
| return classClass; |
| } |
| |
| public void setClassClass(ValueNode newClassClass) { |
| updateUsages(classClass, newClassClass); |
| classClass = newClassClass; |
| } |
| } |