LabelMethodItem.java revision 93aa50139c4641d931b05608f73af8879c0de1c2 
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.baksmali.baksmaliOptions;
32import org.jf.util.IndentingWriter;
33
34import javax.annotation.Nonnull;
35import java.io.IOException;
36
37public class LabelMethodItem extends MethodItem {
38    private final baksmaliOptions options;
39    private final String labelPrefix;
40    private int labelSequence;
41
42    public LabelMethodItem(@Nonnull baksmaliOptions options, int codeAddress, @Nonnull String labelPrefix) {
43        super(codeAddress);
44        this.options = options;
45        this.labelPrefix = labelPrefix;
46    }
47
48    public double getSortOrder() {
49        return 0;
50    }
51
52    public int compareTo(MethodItem methodItem) {
53        int result = super.compareTo(methodItem);
54
55        if (result == 0) {
56            if (methodItem instanceof LabelMethodItem) {
57                result = labelPrefix.compareTo(((LabelMethodItem)methodItem).labelPrefix);
58            }
59        }
60        return result;
61    }
62
63    public int hashCode() {
64        //force it to call equals when two labels are at the same address
65        return getCodeAddress();
66    }
67
68    public boolean equals(Object o) {
69        if (!(o instanceof LabelMethodItem)) {
70            return false;
71        }
72        return this.compareTo((MethodItem)o) == 0;
73    }
74
75
76    public boolean writeTo(IndentingWriter writer) throws IOException {
77        writer.write(':');
78        writer.write(labelPrefix);
79        if (options.useSequentialLabels) {
80            writer.printUnsignedLongAsHex(labelSequence);
81        } else {
82            writer.printUnsignedLongAsHex(this.getLabelAddress());
83        }
84        return true;
85    }
86
87    public String getLabelPrefix() {
88        return labelPrefix;
89    }
90
91    public int getLabelAddress() {
92        return this.getCodeAddress();
93    }
94
95    public int getLabelSequence() {
96        return labelSequence;
97    }
98
99    public void setLabelSequence(int labelSequence) {
100        this.labelSequence = labelSequence;
101    }
102}
103