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6
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Object subclass:#JavaDecompiler
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instanceVariableNames:'code pc javaMethod'
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classVariableNames:'DecoderTable'
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poolDictionaries:''
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category:'Java-Support'
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!
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!JavaDecompiler class methodsFor:'initialization'!
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10 |
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initialize
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DecoderTable := #(
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(nop) "/ 0
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(aconst_null) "/ 1
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(iconst_m1) "/ 2
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(iconst_0) "/ 3
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(iconst_1) "/ 4
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(iconst_2) "/ 5
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(iconst_3) "/ 6
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(iconst_4) "/ 7
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(iconst_5) "/ 8
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(lconst_0) "/ 9
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(lconst_1) "/ 10
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(fconst_0) "/ 11
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(fconst_1) "/ 12
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(fconst_2) "/ 13
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(dconst_0) "/ 14
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(dconst_1) "/ 15
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(bipush signedByte) "/ 16
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(sipush signedShort) "/ 17
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(ldc1 constIndexByte) "/ 18
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(ldc2 constIndexShort) "/ 19
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(ldc2w constIndexShort) "/ 20
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(iload localIndexByte) "/ 21
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(lload localIndexByte) "/ 22
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(fload localIndexByte) "/ 23
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(dload localIndexByte) "/ 24
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(aload localIndexByte) "/ 25
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nil "/ 26
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(iload_1) "/ 27
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(iload_2) "/ 28
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(iload_3) "/ 29
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(lload_0) "/ 30
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(lload_1) "/ 31
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(lload_2) "/ 32
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(lload_3) "/ 33
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(fload_0) "/ 34
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(fload_1) "/ 35
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(fload_2) "/ 36
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(fload_3) "/ 37
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(dload_0) "/ 38
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(dload_1) "/ 39
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(dload_2) "/ 40
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(dload_3) "/ 41
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(aload_0) "/ 42
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(aload_1) "/ 43
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(aload_2) "/ 44
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(aload_3) "/ 45
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(iaload) "/ 46
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(laload) "/ 47
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(faload) "/ 48
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(daload) "/ 49
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(aaload) "/ 50
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(baload) "/ 51
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(caload) "/ 52
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(saload) "/ 53
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(istore localIndexByte) "/ 54
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(lstore localIndexByte) "/ 55
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(fstore localIndexByte) "/ 56
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(dstore localIndexByte) "/ 57
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(astore localIndexByte) "/ 58
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(istore_0) "/ 59
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(istore_1) "/ 60
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(istore_2) "/ 61
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(istore_3) "/ 62
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(lstore_0) "/ 63
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(lstore_1) "/ 64
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(lstore_2) "/ 65
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(lstore_3) "/ 66
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(fstore_0) "/ 67
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(fstore_1) "/ 68
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(fstore_2) "/ 69
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(fstore_3) "/ 70
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(dstore_0) "/ 71
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(dstore_1) "/ 72
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(dstore_2) "/ 73
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(dstore_3) "/ 74
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(astore_0) "/ 75
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(astore_1) "/ 76
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(astore_2) "/ 77
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(astore_3) "/ 78
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(iastore) "/ 79
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(lastore) "/ 80
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(fastore) "/ 81
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(dastore) "/ 82
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(aastore) "/ 83
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(bastore) "/ 84
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(castore) "/ 85
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(sastore) "/ 86
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(pop) "/ 87
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(pop2) "/ 88
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(dup) "/ 89
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(dup_x1) "/ 90
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(dup_x2) "/ 91
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(dup2) "/ 92
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(dup2_x1) "/ 93
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(dup2_x2) "/ 94
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(swap) "/ 95
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(iadd) "/ 96
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(ladd) "/ 97
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(fadd) "/ 98
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(dadd) "/ 99
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(isub) "/ 100
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(lsub) "/ 101
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(fsub) "/ 102
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(dsub) "/ 103
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(imul) "/ 104
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(lmul) "/ 105
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(fmul) "/ 106
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(dmul) "/ 107
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(idiv) "/ 108
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(ldiv) "/ 109
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(fdiv) "/ 110
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(ddiv) "/ 111
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(imod) "/ 112
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(lmod) "/ 113
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(fmod) "/ 114
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(dmod) "/ 115
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(ineg) "/ 116
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(lneg) "/ 117
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(fneg) "/ 118
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(dneg) "/ 119
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(ishl) "/ 120
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(lshl) "/ 121
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(ishr) "/ 122
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(lshr) "/ 123
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(iushr) "/ 124
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(lushr) "/ 125
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(iand) "/ 126
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(land) "/ 127
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(ior) "/ 128
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(lor) "/ 129
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(ixor) "/ 130
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(lxor) "/ 131
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"/ (iinc localIndexByte signedByte) "/ 132
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(i2l) "/ 132
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(i2f) "/ 133
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(i2d) "/ 134
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nil "/ 135
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(l2i) "/ 136
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(l2f) "/ 137
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(l2d) "/ 138
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(l2i) "/ 139
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(f2l) "/ 140
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(f2d) "/ 141
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(d2i) "/ 142
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(d2l) "/ 143
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(d2f) "/ 144
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(int2byte) "/ 145
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(int2char) "/ 146
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(int2short) "/ 147
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(lcmp) "/ 148
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(fcmpl) "/ 149
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178 |
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(fcmpg) "/ 150
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(dcmpl) "/ 151
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(dcmpg) "/ 152
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(ifeq signedBranchShort) "/ 153
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(ifne signedBranchShort) "/ 154
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(iflt signedBranchShort) "/ 155
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(ifge signedBranchShort) "/ 156
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(ifgt signedBranchShort) "/ 157
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(ifle signedBranchShort) "/ 158
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(if_icmpeq signedBranchShort) "/ 159
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189 |
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(if_icmpne signedBranchShort) "/ 160
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(if_icmplt signedBranchShort) "/ 161
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(if_icmpge signedBranchShort) "/ 162
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(if_icmpgt signedBranchShort) "/ 163
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(if_icmple signedBranchShort) "/ 164
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(if_acmpeq signedBranchShort) "/ 165
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(if_acmpne signedBranchShort) "/ 166
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(goto signedBranchShort) "/ 167
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(jsr signedBranchShort) "/ 168
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(ret localIndexByte) "/ 169
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200 |
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(tableswitch tableSwitchBytes) "/ 170
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(lookupswitch lookupSwitchBytes) "/ 171
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(ireturn) "/ 172
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(lreturn) "/ 173
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(freturn) "/ 174
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(dreturn) "/ 175
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(areturn) "/ 176
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(return) "/ 177
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(getstatic constIndexShort) "/ 178
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(putstatic constIndexShort) "/ 179
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211 |
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(getfield constIndexShort) "/ 180
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(putfield constIndexShort) "/ 181
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(invokevirtual constIndexShort) "/ 182
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(invokenonvirtual constIndexShort) "/ 183
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(invokestatic constIndexShort) "/ 184
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(invokeinterface constIndexShort nargsByte reservedByte) "/ 185
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(newfromname) "/ 186
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(new constIndexShort) "/ 187
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(newarray arrayTypeByte) "/ 188
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(anewarray constIndexShort) "/ 189
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222 |
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(arraylength) "/ 190
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(athrough) "/ 191
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(checkcast) "/ 192
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(instanceof constIndexShort) "/ 193
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(monitorenter) "/ 194
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(monitorexit) "/ 195
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(verifystack) "/ 196
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(breakpoint) "/ 197
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(multianewarray constIndexShort dimensionsByte) "/ 198
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nil "/ 199
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233 |
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nil "/ 200
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nil "/ 201
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nil "/ 202
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nil "/ 203
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nil "/ 204
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nil "/ 205
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nil "/ 206
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nil "/ 207
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nil "/ 208
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nil "/ 209
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244 |
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nil "/ 210
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nil "/ 211
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nil "/ 212
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nil "/ 213
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nil "/ 214
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nil "/ 215
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nil "/ 216
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nil "/ 217
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nil "/ 218
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nil "/ 219
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255 |
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nil "/ 220
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nil "/ 221
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nil "/ 222
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nil "/ 223
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nil "/ 224
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nil "/ 225
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nil "/ 226
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nil "/ 227
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nil "/ 228
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nil "/ 229
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nil "/ 230
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nil "/ 231
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nil "/ 232
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nil "/ 233
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nil "/ 234
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nil "/ 235
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nil "/ 236
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nil "/ 237
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nil "/ 238
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nil "/ 239
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nil "/ 240
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nil "/ 241
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nil "/ 242
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nil "/ 243
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nil "/ 244
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nil "/ 245
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nil "/ 246
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nil "/ 247
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nil "/ 248
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nil "/ 249
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288 |
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nil "/ 250
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nil "/ 251
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nil "/ 252
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nil "/ 253
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nil "/ 254
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nil "/ 255
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295 |
)
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296 |
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297 |
"
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298 |
JavaDecompiler initialize
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299 |
"
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300 |
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301 |
"Modified: 16.4.1996 / 14:56:13 / cg"
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302 |
! !
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303 |
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304 |
!JavaDecompiler class methodsFor:'decompiling'!
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305 |
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306 |
decompile:aJavaMethod
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307 |
self new decompile:aJavaMethod
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308 |
! !
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309 |
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310 |
!JavaDecompiler methodsFor:'decompiling'!
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311 |
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312 |
decompile:aJavaMethod
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313 |
|endPC insn spec|
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314 |
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315 |
javaMethod := aJavaMethod.
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316 |
code := aJavaMethod javaByteCode.
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317 |
endPC := code size.
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318 |
pc := 1.
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319 |
[pc <= endPC] whileTrue:[
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320 |
insn := code at:pc.
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321 |
pc := pc + 1.
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322 |
spec := DecoderTable at:(insn + 1).
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323 |
Transcript show:(spec at:1); show:' '.
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324 |
spec from:2 to:spec size do:[:what |
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325 |
self perform:what
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326 |
].
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327 |
Transcript cr.
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328 |
]
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329 |
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330 |
"Created: 16.4.1996 / 14:59:29 / cg"
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331 |
"Modified: 16.4.1996 / 15:27:05 / cg"
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332 |
! !
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333 |
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334 |
!JavaDecompiler methodsFor:'operand decoding'!
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335 |
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336 |
constIndexShort
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337 |
|hi low index constants|
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338 |
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339 |
hi := code at:pc.
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340 |
low := code at:pc + 1.
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341 |
pc := pc + 2.
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342 |
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343 |
index := (hi bitShift:8) + low.
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344 |
"change from unsigned 0..FFFF to signed -8000..7FFF"
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345 |
index >= 16r8000 ifTrue:[
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346 |
index := index - 16r10000
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347 |
].
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348 |
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349 |
Transcript
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350 |
show:index;
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351 |
show:' [';
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352 |
show:(javaMethod constantPool at:index) displayString;
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353 |
show:']'
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354 |
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355 |
"Created: 16.4.1996 / 15:00:04 / cg"
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356 |
"Modified: 16.4.1996 / 15:30:55 / cg"
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357 |
! !
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358 |
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359 |
!JavaDecompiler class methodsFor:'documentation'!
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360 |
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361 |
version
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362 |
^ '$Header: /home/jv/Projects/SmalltalkX/repositories/cvs/stx/libjava/JavaDecompiler.st,v 1.1 1996/04/16 13:34:16 cg Exp $'
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363 |
! !
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364 |
JavaDecompiler initialize!
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