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.dexlib.Util;
30
31import org.jf.dexlib.EncodedValue.*;
32import org.jf.dexlib.TypeIdItem;
33
34public class TypeUtils
35{
36    public static EncodedValue makeDefaultValueForType(String type) {
37        switch (type.charAt(0)) {
38            case 'Z':
39                return BooleanEncodedValue.FalseValue;
40            case 'B':
41                return new ByteEncodedValue((byte)0);
42            case 'S':
43                return new ShortEncodedValue((short)0);
44            case 'C':
45                return new CharEncodedValue((char)0);
46            case 'I':
47                return new IntEncodedValue(0);
48            case 'J':
49                return new LongEncodedValue(0);
50            case 'F':
51                return new FloatEncodedValue(0);
52            case 'D':
53                return new DoubleEncodedValue(0);
54            case 'L':
55            case '[':
56                return NullEncodedValue.NullValue;
57        }
58        return null;
59    }
60
61    public static EncodedValue makeDefaultValueForType(TypeIdItem type) {
62        return makeDefaultValueForType(type.getTypeDescriptor());
63    }
64}
65