InstructionMethodItemFactory.java revision 6eae34831fee1f116f3a453bdc5e143d68e05e03 
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.jf.baksmali.Adaptors.MethodDefinition;
32import org.jf.dexlib.Code.Format.*;
33import org.jf.dexlib.Code.Instruction;
34import org.jf.dexlib.Code.OffsetInstruction;
35import org.jf.dexlib.CodeItem;
36
37public class InstructionMethodItemFactory {
38    private InstructionMethodItemFactory() {
39    }
40
41    public static InstructionMethodItem makeInstructionFormatMethodItem(MethodDefinition methodDefinition,
42                                                                              CodeItem codeItem,
43                                                                              int codeAddress, boolean dead,
44                                                                              Instruction instruction,
45                                                                              boolean isLastInstruction) {
46        if (instruction instanceof OffsetInstruction) {
47            return new OffsetInstructionFormatMethodItem(methodDefinition.getLabelCache(), codeItem, codeAddress,
48                    instruction);
49        }
50
51        switch (instruction.getFormat()) {
52            case ArrayData:
53                return new ArrayDataMethodItem(codeItem, codeAddress, dead,
54                        (ArrayDataPseudoInstruction)instruction);
55            case PackedSwitchData:
56                return new PackedSwitchMethodItem(methodDefinition, codeItem, codeAddress, dead,
57                        (PackedSwitchDataPseudoInstruction)instruction);
58            case SparseSwitchData:
59                return new SparseSwitchMethodItem(methodDefinition, codeItem, codeAddress, dead,
60                        (SparseSwitchDataPseudoInstruction)instruction);
61            case UnresolvedNullReference:
62                return new UnresolvedNullReferenceMethodItem(codeItem, codeAddress,
63                        (UnresolvedNullReference)instruction, isLastInstruction);
64            default:
65                return new InstructionMethodItem(codeItem, codeAddress, instruction);
66        }
67    }
68}
69