001/*
002 * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.virtual.nodes;
024
025import java.util.*;
026
027import com.oracle.graal.graph.*;
028import com.oracle.graal.nodeinfo.*;
029import com.oracle.graal.nodes.*;
030import com.oracle.graal.nodes.virtual.*;
031
032/**
033 * This class encapsulated the virtual state of an escape analyzed object.
034 */
035@NodeInfo
036public final class VirtualObjectState extends EscapeObjectState implements Node.ValueNumberable {
037
038    public static final NodeClass<VirtualObjectState> TYPE = NodeClass.create(VirtualObjectState.class);
039    @Input NodeInputList<ValueNode> values;
040
041    public NodeInputList<ValueNode> values() {
042        return values;
043    }
044
045    public VirtualObjectState(VirtualObjectNode object, ValueNode[] values) {
046        super(TYPE, object);
047        assert object.entryCount() == values.length;
048        this.values = new NodeInputList<>(this, values);
049    }
050
051    public VirtualObjectState(VirtualObjectNode object, List<ValueNode> values) {
052        super(TYPE, object);
053        assert object.entryCount() == values.size();
054        this.values = new NodeInputList<>(this, values);
055    }
056
057    @Override
058    public VirtualObjectState duplicateWithVirtualState() {
059        return graph().addWithoutUnique(new VirtualObjectState(object(), values));
060    }
061
062    @Override
063    public void applyToNonVirtual(NodeClosure<? super ValueNode> closure) {
064        for (ValueNode value : values) {
065            closure.apply(this, value);
066        }
067    }
068}