// // Copyright (C) 2011 United States Government as represented by the // Administrator of the National Aeronautics and Space Administration // (NASA). All Rights Reserved. // // This software is distributed under the NASA Open Source Agreement // (NOSA), version 1.3. The NOSA has been approved by the Open Source // Initiative. See the file NOSA-1.3-JPF at the top of the distribution // directory tree for the complete NOSA document. // // THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY // KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT // LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO // SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR // A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT // THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT // DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE. // package gov.nasa.jpf.vm.serialize; import gov.nasa.jpf.vm.MJIEnv; /** * (mostly) pass-through Abstraction */ public class AbstractionAdapter implements Abstraction { public int getAbstractValue(int v) { return v; } public int getAbstractValue(float v) { return Float.floatToIntBits(v); } public int getAbstractValue(long v) { return (int)(v^(v>>>32)); // Long.hashValue } public int getAbstractValue(double v) { long l = Double.doubleToLongBits(v); return (int)(l^(l>>>32)); // Double.hashValue } public int getAbstractObject(int ref) { return ref; } public boolean traverseObject(int ref) { return (ref != MJIEnv.NULL); } }