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1   /*
2    * Copyright (c) 2000, 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
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24  
25  package sun.jvm.hotspot.oops;
26  
27  import sun.jvm.hotspot.debugger.*;
28  import sun.jvm.hotspot.runtime.VMObject;
29  
30  // The class for an int field simply provides access to the value.
31  public class IntField extends Field {
32    public IntField(FieldIdentifier id, long offset, boolean isVMField) {
33      super(id, offset, isVMField);
34    }
35  
36    public IntField(sun.jvm.hotspot.types.JIntField vmField, long startOffset) {
37      super(new NamedFieldIdentifier(vmField.getName()), vmField.getOffset() + startOffset, true);
38    }
39  
40    public IntField(InstanceKlass holder, int fieldArrayIndex) {
41      super(holder, fieldArrayIndex);
42    }
43  
44    public int getValue(Oop obj) {
45      if (!isVMField() && !obj.isInstance() && !obj.isArray()) {
46        throw new InternalError(obj.toString());
47      }
48      return obj.getHandle().getJIntAt(getOffset());
49    }
50    public int getValue(VMObject obj) {
51      return obj.getAddress().getJIntAt(getOffset());
52    }
53    public void setValue(Oop obj, int value) throws MutationException {
54      // Fix this: setJIntAt is missing in Address
55    }
56  }