1 /*
2  * Copyright (c) 2000, 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  */
24 
25 package sun.jvm.hotspot.types.basic;
26 
27 import sun.jvm.hotspot.debugger.*;
28 import sun.jvm.hotspot.types.*;
29 
30 /** A specialization of Field which represents a field containing a
31     Java double value (in either a C/C++ data structure or a Java
32     object) and which adds typechecked getValue() routines returning
33     doubles. */
34 
35 public class BasicJDoubleField extends BasicField implements JDoubleField {
BasicJDoubleField(BasicTypeDataBase db, Type containingType, String name, Type type, boolean isStatic, long offset, Address staticFieldAddress)36   public BasicJDoubleField(BasicTypeDataBase db, Type containingType, String name, Type type,
37                            boolean isStatic, long offset, Address staticFieldAddress) {
38     super(db, containingType, name, type, isStatic, offset, staticFieldAddress);
39 
40     if (!type.equals(db.getJDoubleType())) {
41       throw new WrongTypeException("Type of a BasicJDoubleField must be equal to TypeDataBase.getJDoubleType()");
42     }
43   }
44 
45   /** The field must be nonstatic and the type of the field must be a
46       Java double, or a WrongTypeException will be thrown. */
getValue(Address addr)47   public double getValue(Address addr) throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
48     return getJDouble(addr);
49   }
50 
51   /** The field must be static and the type of the field must be a
52       Java double, or a WrongTypeException will be thrown. */
getValue()53   public double getValue() throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
54     return getJDouble();
55   }
56 }
57