Mercurial > hg > Members > kono > jpf-core

comparison src/main/gov/nasa/jpf/vm/ByteFieldInfo.java @ 0:61d41facf527

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initial v8 import (history reset)
author Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
date Fri, 23 Jan 2015 10:14:01 -0800
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-1:000000000000 0:61d41facf527
1 /*
2 * Copyright (C) 2014, United States Government, as represented by the
3 * Administrator of the National Aeronautics and Space Administration.
4 * All rights reserved.
5 *
6 * The Java Pathfinder core (jpf-core) platform is licensed under the
7 * Apache License, Version 2.0 (the "License"); you may not use this file except
8 * in compliance with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0.
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 package gov.nasa.jpf.vm;
20
21 import gov.nasa.jpf.JPFException;
22
23 /**
24 * fieldinfo for slots holding bytes
25 */
26 public class ByteFieldInfo extends SingleSlotFieldInfo {
27
28 byte init;
29
30 public ByteFieldInfo (String name, int modifiers) {
31 super(name, "B", modifiers);
32 }
33
34 @Override
35 public void setConstantValue(Object constValue){
36 if (constValue instanceof Integer){
37 cv = constValue;
38 init = ((Integer)constValue).byteValue();
39
40 } else {
41 throw new JPFException("illegal byte ConstValue=" + constValue);
42 }
43 }
44
45
46 @Override
47 public void initialize (ElementInfo ei, ThreadInfo ti) {
48 ei.getFields().setByteValue(storageOffset, init);
49 }
50
51 @Override
52 public boolean isByteField() {
53 return true;
54 }
55
56 @Override
57 public String valueToString (Fields f) {
58 byte i = f.getByteValue(storageOffset);
59 return Byte.toString(i);
60 }
61
62
63 @Override
64 public Object getValueObject (Fields f){
65 int i = f.getIntValue(storageOffset);
66 return new Byte((byte)i);
67 }
68
69 @Override
70 public boolean isNumericField(){
71 return true;
72 }
73 }