Mercurial > hg > Members > kono > jpf-core
diff src/main/gov/nasa/jpf/vm/ByteFieldInfo.java @ 0:61d41facf527
initial v8 import (history reset)
author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
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date | Fri, 23 Jan 2015 10:14:01 -0800 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/main/gov/nasa/jpf/vm/ByteFieldInfo.java Fri Jan 23 10:14:01 2015 -0800 @@ -0,0 +1,73 @@ +/* + * Copyright (C) 2014, United States Government, as represented by the + * Administrator of the National Aeronautics and Space Administration. + * All rights reserved. + * + * The Java Pathfinder core (jpf-core) platform is licensed under the + * Apache License, Version 2.0 (the "License"); you may not use this file except + * in compliance with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0. + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package gov.nasa.jpf.vm; + +import gov.nasa.jpf.JPFException; + +/** + * fieldinfo for slots holding bytes + */ +public class ByteFieldInfo extends SingleSlotFieldInfo { + + byte init; + + public ByteFieldInfo (String name, int modifiers) { + super(name, "B", modifiers); + } + + @Override + public void setConstantValue(Object constValue){ + if (constValue instanceof Integer){ + cv = constValue; + init = ((Integer)constValue).byteValue(); + + } else { + throw new JPFException("illegal byte ConstValue=" + constValue); + } + } + + + @Override + public void initialize (ElementInfo ei, ThreadInfo ti) { + ei.getFields().setByteValue(storageOffset, init); + } + + @Override + public boolean isByteField() { + return true; + } + + @Override + public String valueToString (Fields f) { + byte i = f.getByteValue(storageOffset); + return Byte.toString(i); + } + + + @Override + public Object getValueObject (Fields f){ + int i = f.getIntValue(storageOffset); + return new Byte((byte)i); + } + + @Override + public boolean isNumericField(){ + return true; + } +}