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30 package soot.baf.internal;
31
32 import soot.*;
33 import soot.baf.*;
34 import soot.util.*;
35 import java.util.*;
36
37 public class BPrimitiveCastInst extends AbstractInst
38 implements PrimitiveCastInst
39 {
40 Type fromType;
41
42 protected Type toType;
43
44 public int getInCount()
45 {
46 return 1;
47 }
48
49 public int getInMachineCount()
50 {
51 return JasminClass.sizeOfType(fromType);
52 }
53
54 public int getOutCount()
55 {
56 return 1;
57 }
58
59 public int getOutMachineCount()
60 {
61 return JasminClass.sizeOfType(toType);
62 }
63
64
65 public BPrimitiveCastInst(Type fromType, Type toType)
66 {
67
68 if( fromType instanceof NullType )
69 throw new RuntimeException  ("invalid fromType " + fromType);
70 this.fromType = fromType;
71 this.toType = toType;
72 }
73
74
75 public Object clone()
76 {
77 return new BPrimitiveCastInst(getFromType(), toType);
78 }
79
80
81
82 public Type getFromType() { return fromType; }
84 public void setFromType(Type t) { fromType = t;}
85
86 public Type getToType() { return toType; }
87 public void setToType(Type t) { toType = t;}
88
89 final public String getName()
90 {
91 TypeSwitch sw;
92
93 fromType.apply(sw = new TypeSwitch()
94 {
95 public void defaultCase(Type ty)
96 {
97 throw new RuntimeException ("invalid fromType " + fromType);
98 }
99
100 public void caseDoubleType(DoubleType ty)
101 {
102 if(toType.equals(IntType.v()))
103 setResult("d2i");
104 else if(toType.equals(LongType.v()))
105 setResult("d2l");
106 else if(toType.equals(FloatType.v()))
107 setResult("d2f");
108 else
109 throw new RuntimeException
110 ("invalid toType from double: " + toType);
111 }
112
113 public void caseFloatType(FloatType ty)
114 {
115 if(toType.equals(IntType.v()))
116 setResult("f2i");
117 else if(toType.equals(LongType.v()))
118 setResult("f2l");
119 else if(toType.equals(DoubleType.v()))
120 setResult("f2d");
121 else
122 throw new RuntimeException
123 ("invalid toType from float: " + toType);
124 }
125
126 public void caseIntType(IntType ty)
127 {
128 emitIntToTypeCast();
129 }
130
131 public void caseBooleanType(BooleanType ty)
132 {
133 emitIntToTypeCast();
134 }
135
136 public void caseByteType(ByteType ty)
137 {
138 emitIntToTypeCast();
139 }
140
141 public void caseCharType(CharType ty)
142 {
143 emitIntToTypeCast();
144 }
145
146 public void caseShortType(ShortType ty)
147 {
148 emitIntToTypeCast();
149 }
150
151 private void emitIntToTypeCast()
152 {
153 if(toType.equals(ByteType.v()))
154 setResult("i2b");
155 else if(toType.equals(CharType.v()))
156 setResult("i2c");
157 else if(toType.equals(ShortType.v()))
158 setResult("i2s");
159 else if(toType.equals(FloatType.v()))
160 setResult("i2f");
161 else if(toType.equals(LongType.v()))
162 setResult("i2l");
163 else if(toType.equals(DoubleType.v()))
164 setResult("i2d");
165 else if(toType.equals(IntType.v()))
166 setResult(""); else if(toType.equals(BooleanType.v()))
168 setResult("");
169 else
170 throw new RuntimeException
171 ("invalid toType from int: " + toType);
172 }
173
174 public void caseLongType(LongType ty)
175 {
176 if(toType.equals(IntType.v()))
177 setResult("l2i");
178 else if(toType.equals(FloatType.v()))
179 setResult("l2f");
180 else if(toType.equals(DoubleType.v()))
181 setResult("l2d");
182 else
183 throw new RuntimeException
184 ("invalid toType from long: " + toType);
185
186 }
187 });
188 return (String )sw.getResult();
189 }
190
191
192 public String toString()
193 {
194 return getName() +
195 getParameters();
196 }
197
198 public void apply(Switch sw)
199 {
200 ((InstSwitch) sw).casePrimitiveCastInst(this);
201 }
202 }
203
204 |
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