1 /*
2  * Copyright (c) 2002, 2003, 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
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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.
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19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23  */
24 
25 package sun.jvm.hotspot.interpreter;
26 
27 import sun.jvm.hotspot.oops.*;
28 import sun.jvm.hotspot.runtime.*;
29 
30 // getfield, getstatic, putfield or putstatic
31 
32 public abstract class BytecodeGetPut extends BytecodeWithCPIndex {
BytecodeGetPut(Method method, int bci)33   BytecodeGetPut(Method method, int bci) {
34     super(method, bci);
35   }
36 
37   // returns the name of the accessed field
name()38   public Symbol name() {
39     ConstantPool cp = method().getConstants();
40     return cp.getNameRefAt(index());
41   }
42 
43   // returns the signature of the accessed field
signature()44   public Symbol signature() {
45     ConstantPool cp = method().getConstants();
46     return cp.getSignatureRefAt(index());
47   }
48 
getField()49   public Field getField() {
50     return method().getConstants().getFieldRefAt(index());
51   }
52 
toString()53   public String toString() {
54     StringBuffer buf = new StringBuffer();
55     buf.append(getJavaBytecodeName());
56     buf.append(spaces);
57     buf.append('#');
58     buf.append(Integer.toString(indexForFieldOrMethod()));
59     buf.append(" [Field ");
60     StringBuffer sigBuf = new StringBuffer();
61     new SignatureConverter(signature(), sigBuf).dispatchField();
62     buf.append(sigBuf.toString().replace('/', '.'));
63     buf.append(spaces);
64     buf.append(name().asString());
65     buf.append("]");
66     if (code() != javaCode()) {
67        buf.append(spaces);
68        buf.append('[');
69        buf.append(getBytecodeName());
70        buf.append(']');
71     }
72     return buf.toString();
73   }
74 
isStatic()75   public abstract boolean isStatic();
76 }
77