InstructionMethodItemFactory.java revision fbea4e751fa6f1748ded4379a4b64601cb53ba7b 
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.ArrayDataPseudoInstruction;
33import org.jf.dexlib.Code.Format.PackedSwitchDataPseudoInstruction;
34import org.jf.dexlib.Code.Format.SparseSwitchDataPseudoInstruction;
35import org.jf.dexlib.Code.Format.UnresolvedNullReference;
36import org.jf.dexlib.Code.Instruction;
37import org.jf.dexlib.Code.OffsetInstruction;
38import org.jf.dexlib.CodeItem;
39
40public class InstructionMethodItemFactory {
41    private InstructionMethodItemFactory() {
42    }
43
44    public static InstructionMethodItem makeInstructionFormatMethodItem(MethodDefinition methodDefinition,
45                                                                              CodeItem codeItem,
46                                                                              int codeAddress, boolean dead,
47                                                                              Instruction instruction,
48                                                                              boolean isLastInstruction) {
49        if (instruction instanceof OffsetInstruction) {
50            return new OffsetInstructionFormatMethodItem(methodDefinition.getLabelCache(), codeItem, codeAddress,
51                    instruction);
52        }
53
54        switch (instruction.getFormat()) {
55            case ArrayData:
56                return new ArrayDataMethodItem(codeItem, codeAddress, dead,
57                        (ArrayDataPseudoInstruction)instruction);
58            case PackedSwitchData:
59                return new PackedSwitchMethodItem(methodDefinition, codeItem, codeAddress, dead,
60                        (PackedSwitchDataPseudoInstruction)instruction);
61            case SparseSwitchData:
62                return new SparseSwitchMethodItem(methodDefinition, codeItem, codeAddress, dead,
63                        (SparseSwitchDataPseudoInstruction)instruction);
64            case UnresolvedNullReference:
65                return new UnresolvedNullReferenceMethodItem(codeItem, codeAddress,
66                        (UnresolvedNullReference)instruction, isLastInstruction);
67            default:
68                return new InstructionMethodItem(codeItem, codeAddress, instruction);
69        }
70    }
71}
72