1 /*
   2  * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.nodes.virtual;
  24 
  25 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0;
  26 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0;
  27 
  28 import org.graalvm.compiler.graph.Node.ValueNumberable;
  29 import org.graalvm.compiler.graph.NodeClass;
  30 import org.graalvm.compiler.nodeinfo.NodeInfo;
  31 import org.graalvm.compiler.nodes.VirtualState;
  32 
  33 @NodeInfo(cycles = CYCLES_0, size = SIZE_0)
  34 public abstract class EscapeObjectState extends VirtualState implements ValueNumberable {
  35     public static final NodeClass<EscapeObjectState> TYPE = NodeClass.create(EscapeObjectState.class);
  36 
  37     @Input protected VirtualObjectNode object;
  38 
  39     public VirtualObjectNode object() {
  40         return object;
  41     }
  42 
  43     public EscapeObjectState(NodeClass<? extends EscapeObjectState> c, VirtualObjectNode object) {
  44         super(c);
  45         this.object = object;
  46     }
  47 
  48     @Override
  49     public abstract EscapeObjectState duplicateWithVirtualState();
  50 
  51     @Override
  52     public boolean isPartOfThisState(VirtualState state) {
  53         return this == state;
  54     }
  55 
  56     @Override
  57     public void applyToVirtual(VirtualClosure closure) {
  58         closure.apply(this);
  59     }
  60 }