1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
/*
* Fernflower - The Analytical Java Decompiler
* http://www.reversed-java.com
*
* (C) 2008 - 2010, Stiver
*
* This software is NEITHER public domain NOR free software
* as per GNU License. See license.txt for more details.
*
* This software is distributed WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE.
*/
package de.fernflower.modules.decompiler.exps;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import de.fernflower.struct.gen.VarType;
import de.fernflower.util.InterpreterUtil;
import de.fernflower.util.ListStack;
public class IfExprent extends Exprent {
public static final int IF_EQ = 0;
public static final int IF_NE = 1;
public static final int IF_LT = 2;
public static final int IF_GE = 3;
public static final int IF_GT = 4;
public static final int IF_LE = 5;
public static final int IF_NULL = 6;
public static final int IF_NONNULL = 7;
public static final int IF_ICMPEQ = 8;
public static final int IF_ICMPNE = 9;
public static final int IF_ICMPLT = 10;
public static final int IF_ICMPGE = 11;
public static final int IF_ICMPGT = 12;
public static final int IF_ICMPLE = 13;
public static final int IF_ACMPEQ = 14;
public static final int IF_ACMPNE = 15;
public static final int IF_CAND = 16;
public static final int IF_COR = 17;
public static final int IF_NOT = 18;
public static final int IF_VALUE = 19;
private static final int[] functypes = new int[] {
FunctionExprent.FUNCTION_EQ,
FunctionExprent.FUNCTION_NE,
FunctionExprent.FUNCTION_LT,
FunctionExprent.FUNCTION_GE,
FunctionExprent.FUNCTION_GT,
FunctionExprent.FUNCTION_LE,
FunctionExprent.FUNCTION_EQ,
FunctionExprent.FUNCTION_NE,
FunctionExprent.FUNCTION_EQ,
FunctionExprent.FUNCTION_NE,
FunctionExprent.FUNCTION_LT,
FunctionExprent.FUNCTION_GE,
FunctionExprent.FUNCTION_GT,
FunctionExprent.FUNCTION_LE,
FunctionExprent.FUNCTION_EQ,
FunctionExprent.FUNCTION_NE,
FunctionExprent.FUNCTION_CADD,
FunctionExprent.FUNCTION_COR,
FunctionExprent.FUNCTION_BOOLNOT,
-1
};
private Exprent condition;
{
this.type = EXPRENT_IF;
}
public IfExprent(int iftype, ListStack<Exprent> stack) {
if(iftype <= IF_LE) {
stack.push(new ConstExprent(0, true));
} else if(iftype <= IF_NONNULL) {
stack.push(new ConstExprent(VarType.VARTYPE_NULL, null));
}
if(iftype == IF_VALUE) {
condition = stack.pop();
} else {
condition = new FunctionExprent(functypes[iftype], stack);
}
}
private IfExprent(Exprent condition) {
this.condition = condition;
}
public Exprent copy() {
return new IfExprent(condition.copy());
}
public List<Exprent> getAllExprents() {
List<Exprent> lst = new ArrayList<Exprent>();
lst.add(condition);
return lst;
}
public String toJava(int indent) {
StringBuffer buf = new StringBuffer("if(");
buf.append(condition.toJava(indent));
buf.append(")");
return buf.toString();
}
public boolean equals(Object o) {
if(o == this) return true;
if(o == null || !(o instanceof IfExprent)) return false;
IfExprent ie = (IfExprent)o;
return InterpreterUtil.equalObjects(condition, ie.getCondition());
}
public void replaceExprent(Exprent oldexpr, Exprent newexpr) {
if(oldexpr == condition) {
condition = newexpr;
}
}
public IfExprent negateIf() {
condition = new FunctionExprent(FunctionExprent.FUNCTION_BOOLNOT,
Arrays.asList(new Exprent[]{condition}));
return this;
}
public Exprent getCondition() {
return condition;
}
public void setCondition(Exprent condition) {
this.condition = condition;
}
}
|
