LabelMethodItem.java revision 74c14ffcca0ff4f8f3e66e66022894cd7b0b8540 
1/*
2 * [The "BSD licence"]
3 * Copyright (c) 2010 Ben Gruver (JesusFreke)
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29package org.jf.baksmali.Adaptors;
30
31import org.jf.util.IndentingWriter;
32import org.jf.baksmali.baksmali;
33
34import java.io.IOException;
35
36public class LabelMethodItem extends MethodItem {
37    private final String labelPrefix;
38    private int labelSequence;
39
40    public LabelMethodItem(int codeAddress, String labelPrefix) {
41        super(codeAddress);
42        this.labelPrefix = labelPrefix;
43    }
44
45    public double getSortOrder() {
46        return 0;
47    }
48
49    public int compareTo(MethodItem methodItem) {
50        int result = super.compareTo(methodItem);
51
52        if (result == 0) {
53            if (methodItem instanceof LabelMethodItem) {
54                result = labelPrefix.compareTo(((LabelMethodItem)methodItem).labelPrefix);
55            }
56        }
57        return result;
58    }
59
60    public int hashCode() {
61        //force it to call equals when two labels are at the same address
62        return getCodeAddress();
63    }
64
65    public boolean equals(Object o) {
66        if (!(o instanceof LabelMethodItem)) {
67            return false;
68        }
69        return this.compareTo((MethodItem)o) == 0;
70    }
71
72
73    public boolean writeTo(IndentingWriter writer) throws IOException {
74        writer.write(':');
75        writer.write(labelPrefix);
76        if (baksmali.useSequentialLabels) {
77            writer.printUnsignedLongAsHex(labelSequence);
78        } else {
79            writer.printUnsignedLongAsHex(this.getLabelAddress());
80        }
81        return true;
82    }
83
84    public String getLabelPrefix() {
85        return labelPrefix;
86    }
87
88    public int getLabelAddress() {
89        return this.getCodeAddress();
90    }
91
92    public int getLabelSequence() {
93        return labelSequence;
94    }
95
96    public void setLabelSequence(int labelSequence) {
97        this.labelSequence = labelSequence;
98    }
99}
100