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
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
25package sun.jvm.hotspot.interpreter;
26
27import sun.jvm.hotspot.oops.*;
28import sun.jvm.hotspot.runtime.*;
29
30// getfield, getstatic, putfield or putstatic
31
32public abstract class BytecodeGetPut extends BytecodeWithCPIndex {
33  BytecodeGetPut(Method method, int bci) {
34    super(method, bci);
35  }
36
37  // returns the name of the accessed field
38  public Symbol name() {
39    ConstantPool cp = method().getConstants();
40    return cp.getNameRefAt(index());
41  }
42
43  // returns the signature of the accessed field
44  public Symbol signature() {
45    ConstantPool cp = method().getConstants();
46    return cp.getSignatureRefAt(index());
47  }
48
49  public Field getField() {
50    return method().getConstants().getFieldRefAt(index());
51  }
52
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
75  public abstract boolean isStatic();
76}
77