PostInstructionRegisterInfoMethodItem.java revision ffe82bdcb5c914b3a60b630c6d3abe6fc9229dec 
1/*
2 * [The "BSD licence"]
3 * Copyright (c) 2010 Ben Gruver
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
31//TODO: uncomment
32/*public class PostInstructionRegisterInfoMethodItem extends MethodItem {
33    private final AnalyzedInstruction analyzedInstruction;
34    private final MethodAnalyzer methodAnalyzer;
35
36    public PostInstructionRegisterInfoMethodItem(AnalyzedInstruction analyzedInstruction, MethodAnalyzer methodAnalyzer,
37                                                int codeAddress) {
38        super(codeAddress);
39        this.analyzedInstruction = analyzedInstruction;
40        this.methodAnalyzer = methodAnalyzer;
41    }
42
43    @Override
44    public double getSortOrder() {
45        return 100.1;
46    }
47
48    @Override
49    public boolean writeTo(IndentingWriter writer) throws IOException {
50        int registerInfo = baksmali.registerInfo;
51        int registerCount = analyzedInstruction.getRegisterCount();
52        BitSet registers = new BitSet(registerCount);
53
54        if ((registerInfo & main.ALL) != 0) {
55            registers.set(0, registerCount);
56        } else {
57            if ((registerInfo & main.ALLPOST) != 0) {
58                registers.set(0, registerCount);
59            } else if ((registerInfo & main.DEST) != 0) {
60                addDestRegs(registers, registerCount);
61            }
62        }
63
64        return writeRegisterInfo(writer, registers);
65    }
66
67    private void addDestRegs(BitSet printPostRegister, int registerCount) {
68        for (int registerNum=0; registerNum<registerCount; registerNum++) {
69            if (analyzedInstruction.getPreInstructionRegisterType(registerNum) !=
70                    analyzedInstruction.getPostInstructionRegisterType(registerNum)) {
71                printPostRegister.set(registerNum);
72            }
73        }
74    }
75
76    private boolean writeRegisterInfo(IndentingWriter writer, BitSet registers) throws IOException {
77        ClassDataItem.EncodedMethod encodedMethod = methodAnalyzer.getMethod();
78
79        int registerNum = registers.nextSetBit(0);
80        if (registerNum < 0) {
81            return false;
82        }
83
84        writer.write('#');
85        for (; registerNum >= 0; registerNum = registers.nextSetBit(registerNum + 1)) {
86
87            RegisterType registerType = analyzedInstruction.getPostInstructionRegisterType(registerNum);
88
89            RegisterFormatter.writeTo(writer, encodedMethod.codeItem, registerNum);
90            writer.write('=');
91
92            if (registerType == null) {
93                writer.write("null");
94            } else {
95                registerType.writeTo(writer);
96            }
97            writer.write(';');
98        }
99        return true;
100    }
101}*/
102