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Java > Open Source Codes > org > aspectj > compiler > base > bcg > pool > StringConstant


1 /* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2  *
3  * This file is part of the compiler and core tools for the AspectJ(tm)
4  * programming language; see http://aspectj.org
5  *
6  * The contents of this file are subject to the Mozilla Public License
7  * Version 1.1 (the "License"); you may not use this file except in
8  * compliance with the License. You may obtain a copy of the License at
9  * either http://www.mozilla.org/MPL/ or http://aspectj.org/MPL/.
10  *
11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the
14  * License.
15  *
16  * The Original Code is AspectJ.
17  *
18  * The Initial Developer of the Original Code is Xerox Corporation. Portions
19  * created by Xerox Corporation are Copyright (C) 1999-2002 Xerox Corporation.
20  * All Rights Reserved.
21  *
22  * Contributor(s):
23  */
24
25 package org.aspectj.compiler.base.bcg.pool;
26
27 import org.aspectj.compiler.base.bcg.*;
28
29 import java.io.*;
30 import java.util.*;
31
32 import org.aspectj.compiler.base.ast.ArrayType;
33 import org.aspectj.compiler.base.ast.NameType;
34 import org.aspectj.compiler.base.ast.RefType;
35
36 public class StringConstant extends Constant {
37     Utf8Constant name;
38     StringConstant() {}
39     StringConstant(Utf8Constant name) {
40         this.name = name;
41     }
42     void writeTo(DataOutputStream stream) throws IOException {
43         stream.writeByte(STRING_TAG);
44         name.writeIndex(stream);
45     }
46     public String JavaDoc toString() {
47         return rep(getIndex(),
48                    "(string " + name + ")");
49     }
50     public boolean equals(Object JavaDoc other) {
51         if (! (other instanceof StringConstant)) return false;
52         StringConstant o = (StringConstant) other;
53         return name == o.name;
54     }
55     public int hashCode() {
56         return name.hashCode() + STRING_TAG;
57     }
58
59     void readFrom(DataInputStream stream, ConstantPool pool) throws IOException {
60         name = (Utf8Constant)
61             pool.get(stream.readUnsignedShort(), new Utf8Constant());
62     }
63 }
64
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