PackedSwitchMethodItem.java revision db26b663aa3b5bb721185b8798b6767710d3c243 
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.Format;
30
31import org.antlr.stringtemplate.StringTemplate;
32import org.antlr.stringtemplate.StringTemplateGroup;
33import org.jf.dexlib.Code.Format.PackedSwitchDataPseudoInstruction;
34import org.jf.dexlib.CodeItem;
35import org.jf.baksmali.Adaptors.LabelMethodItem;
36import org.jf.baksmali.Adaptors.MethodDefinition;
37
38import java.util.ArrayList;
39import java.util.Iterator;
40import java.util.List;
41
42public class PackedSwitchMethodItem extends InstructionMethodItem<PackedSwitchDataPseudoInstruction>
43        implements Iterable<LabelMethodItem> {
44    private final List<LabelMethodItem> labels;
45    private final boolean dead;
46
47    public PackedSwitchMethodItem(MethodDefinition methodDefinition, CodeItem codeItem, int codeAddress, boolean dead,
48                                  StringTemplateGroup stg, PackedSwitchDataPseudoInstruction instruction) {
49        super(codeItem, codeAddress, stg, instruction);
50
51        int baseCodeAddress = methodDefinition.getPackedSwitchBaseAddress(codeAddress);
52
53        labels = new ArrayList<LabelMethodItem>();
54        Iterator<PackedSwitchDataPseudoInstruction.PackedSwitchTarget> iterator = instruction.iterateKeysAndTargets();
55        while (iterator.hasNext()) {
56            PackedSwitchDataPseudoInstruction.PackedSwitchTarget target = iterator.next();
57            LabelMethodItem label = new LabelMethodItem(baseCodeAddress + target.targetAddressOffset, stg, "pswitch_");
58            label = methodDefinition.getLabelCache().internLabel(label);
59            labels.add(label);
60            label.setUncommented();
61        }
62
63        this.dead = dead;
64    }
65
66    protected void setAttributes(StringTemplate template) {
67        template.setAttribute("FirstKey", instruction.getFirstKey());
68        template.setAttribute("Targets", labels);
69        template.setAttribute("Dead", dead);
70    }
71
72    public Iterator<LabelMethodItem> iterator() {
73        return labels.iterator();
74    }
75}
76