Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/NewInstanceNode.java @ 7007:94596bbec6f0
provide MetaAccessProvider to EscapeAnalyzable
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Tue, 20 Nov 2012 13:36:22 +0100 |
parents | 51b6e594b0cd |
children | 7e12f1d11a5d |
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/* * Copyright (c) 2009, 2011, 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.nodes.java; import java.util.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.type.*; import com.oracle.graal.nodes.virtual.*; /** * The {@code NewInstanceNode} represents the allocation of an instance class object. */ @NodeInfo(nameTemplate = "New {p#instanceClass/s}") public final class NewInstanceNode extends FixedWithNextNode implements EscapeAnalyzable, Lowerable, Node.IterableNodeType { private final ResolvedJavaType instanceClass; private final boolean fillContents; private final boolean locked; /** * Constructs a NewInstanceNode. * * @param type the class being allocated * @param fillContents determines whether the new object's fields should be initialized to zero/null. * @param locked determines whether the new object should be locked immediately. */ public NewInstanceNode(ResolvedJavaType type, boolean fillContents, boolean locked) { super(StampFactory.exactNonNull(type)); this.instanceClass = type; this.fillContents = fillContents; this.locked = locked; } /** * Gets the instance class being allocated by this node. * * @return the instance class allocated */ public ResolvedJavaType instanceClass() { return instanceClass; } /** * @return <code>true</code> if the fields of the new object will be initialized. */ public boolean fillContents() { return fillContents; } /** * @return <code>true</code> if the new object will be locked immediately. */ public boolean locked() { return locked; } @Override public void lower(LoweringTool tool) { tool.getRuntime().lower(this, tool); } private static void fillEscapeFields(ResolvedJavaType type, List<ResolvedJavaField> escapeFields) { if (type != null) { fillEscapeFields(type.getSuperclass(), escapeFields); for (ResolvedJavaField field : type.getDeclaredFields()) { escapeFields.add(field); } } } public static ResolvedJavaField[] getEscapeFields(ResolvedJavaType type) { List<ResolvedJavaField> escapeFields = new ArrayList<>(); fillEscapeFields(type, escapeFields); ResolvedJavaField[] fields = escapeFields.toArray(new ResolvedJavaField[escapeFields.size()]); return fields; } @Override public ObjectDesc[] getAllocations(long nextVirtualId, MetaAccessProvider metaAccess) { if (instanceClass != null) { assert !instanceClass().isArrayClass(); ResolvedJavaField[] fields = getEscapeFields(instanceClass()); ValueNode[] state = new ValueNode[fields.length]; for (int i = 0; i < state.length; i++) { state[i] = ConstantNode.defaultForKind(fields[i].getType().getKind(), graph()); } VirtualObjectNode virtualObject = new VirtualInstanceNode(nextVirtualId, instanceClass(), fields); return new ObjectDesc[]{new ObjectDesc(virtualObject, state, 0)}; } return null; } }