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1
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1 |
Object subclass:#JavaClassReader
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9
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instanceVariableNames:'inStream msb constants this_class super_class version majorVsn
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3 |
minorVsn'
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1
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4 |
classVariableNames:'Verbose'
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5 |
poolDictionaries:''
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6 |
category:'Java-Support'
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7 |
!
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8 |
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9 |
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10 |
!JavaClassReader class methodsFor:'initialization'!
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11 |
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12 |
initialize
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13 |
Verbose := false
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14 |
! !
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15 |
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16 |
!JavaClassReader class methodsFor:'debugging'!
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17 |
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18 |
verbose:aBoolean
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19 |
Verbose := aBoolean
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20 |
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21 |
"
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22 |
JavaClassReader verbose:true
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23 |
JavaClassReader verbose:false
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24 |
"
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25 |
! !
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26 |
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27 |
!JavaClassReader class methodsFor:'file reading'!
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28 |
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7
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29 |
loadFile:aFilename
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30 |
"reads a class from aFilename, installs and returns it."
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31 |
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32 |
|javaClass|
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33 |
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javaClass := self readFile:aFilename.
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35 |
javaClass notNil ifTrue:[
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36 |
Smalltalk at:(javaClass fullName asSymbol) put:javaClass.
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37 |
Smalltalk changed.
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38 |
].
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9
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39 |
^ javaClass
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7
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40 |
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41 |
"
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42 |
JavaClassReader loadFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
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9
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43 |
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44 |
'/phys/ibm3/java/lib/java/lang' asFilename
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45 |
directoryContents do:[:nm |
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46 |
(nm endsWith:'.class') ifTrue:[
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47 |
JavaClassReader loadFile:'/phys/ibm3/java/lib/java/lang/' , nm
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48 |
]
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49 |
]
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50 |
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51 |
JavaClassReader loadFile:'/phys/ibm3/java/lib/java/lang/AbstractMethodError.class'
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7
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"
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53 |
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54 |
"Created: 15.4.1996 / 14:58:53 / cg"
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55 |
!
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56 |
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1
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57 |
readFile:aFilename
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7
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"reads a class from aFilename and returns it.
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The JavaClass is not installed as global"
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60 |
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1
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|inStream retVal|
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inStream := aFilename asFilename readStream.
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inStream isNil ifTrue:[^ nil].
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retVal := self readStream:inStream.
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inStream close.
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^ retVal
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68 |
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"Created: 15.4.1996 / 14:58:53 / cg"
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!
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71 |
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72 |
readStream:aStream
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7
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"reads a class from aStream and returns it.
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The JavaClass is not installed as global"
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75 |
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1
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76 |
^ self new readStream:aStream
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77 |
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78 |
"
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79 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
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80 |
"
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81 |
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"Modified: 15.4.1996 / 15:01:30 / cg"
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! !
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84 |
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!JavaClassReader methodsFor:'file reading'!
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86 |
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87 |
readClassFile
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7
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88 |
"reads a class from inStream and returns it.
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89 |
The JavaClass is not installed as global"
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90 |
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9
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91 |
|magic
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1
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92 |
access_flags this_class_index super_class_index|
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93 |
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94 |
"/
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95 |
"/ read magic, determine byte order
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96 |
"/
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97 |
msb := true.
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98 |
magic := self nextU4.
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magic = 16rCAFEBABE ifFalse:[
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magic = 16rBEBAFECA ifFalse:[
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self error:'not a java class file'.
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^ nil
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103 |
].
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104 |
msb := false.
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105 |
Verbose ifTrue:[Transcript showCr:'file is lsb'].
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106 |
] ifTrue:[
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107 |
Verbose ifTrue:[Transcript showCr:'file is msb'].
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108 |
].
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109 |
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110 |
"/
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111 |
"/ get version
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112 |
"/
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113 |
version := self nextU4.
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9
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114 |
majorVsn := (version bitShift:-16) bitAnd:16rFFFF.
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115 |
minorVsn := version bitAnd:16rFFFF.
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116 |
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117 |
Verbose ifTrue:[Transcript show:'version = ';
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show:(majorVsn printString);
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119 |
show:'.';
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120 |
showCr:(minorVsn printString)].
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1
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121 |
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122 |
"/
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123 |
"/ get constant pool
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"/
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125 |
self readConstantPool.
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126 |
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127 |
"/
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128 |
"/ access flags
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129 |
"/
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130 |
access_flags := self nextU2.
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131 |
this_class_index := self nextU2.
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132 |
super_class_index := self nextU2.
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133 |
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this_class := constants at:this_class_index.
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135 |
super_class := constants at:super_class_index.
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136 |
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137 |
this_class setAccessFlags:access_flags.
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3
|
138 |
this_class setSuperclass:super_class.
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5
|
139 |
this_class setConstantPool:constants.
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1
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140 |
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141 |
"/
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142 |
"/ get interfaces
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143 |
"/
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144 |
self readInterfaces.
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145 |
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146 |
"/
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147 |
"/ get fields
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148 |
"/
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149 |
self readFieldInfofields.
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150 |
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151 |
"/
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152 |
"/ get methods
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153 |
"/
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154 |
self readMethods.
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155 |
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5
|
156 |
self readAttributesFor:this_class.
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157 |
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158 |
^ this_class
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159 |
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1
|
160 |
"
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161 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
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162 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class'
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9
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163 |
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164 |
JavaClassReader verbose:true.
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165 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/java/lang/ArithmeticException.class'
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166 |
JavaClassReader readFile:'/phys/ibm3/java/lib/java/lang/ArithmeticException.class'
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1
|
167 |
"
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168 |
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|
169 |
"Created: 15.4.1996 / 15:02:47 / cg"
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|
170 |
"Modified: 15.4.1996 / 16:51:48 / cg"
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|
171 |
!
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172 |
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5
|
173 |
readInterfaces
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174 |
|interfacesCount interface|
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175 |
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176 |
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177 |
"/
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|
178 |
"/ get interfaces
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179 |
"/
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|
180 |
interfacesCount := self nextU2.
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181 |
Verbose ifTrue:[Transcript show:'interfacesCount = '; showCr:interfacesCount].
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182 |
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183 |
1 to:interfacesCount do:[:i |
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184 |
Verbose ifTrue:[Transcript show:'interface: '; showCr:i].
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185 |
interface = self nextU2
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186 |
].
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187 |
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|
188 |
"
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|
189 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
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|
190 |
"
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191 |
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|
192 |
"Created: 15.4.1996 / 15:31:59 / cg"
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|
193 |
"Modified: 15.4.1996 / 15:33:28 / cg"
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|
194 |
!
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195 |
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196 |
readSourceFileAttributeFor:aJavaClass
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|
197 |
|attribute_length sourceFile_index sourceFile|
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|
198 |
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|
199 |
attribute_length := self nextU4.
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200 |
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|
201 |
sourceFile_index := self nextU2.
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|
202 |
sourceFile := constants at:sourceFile_index.
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203 |
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|
204 |
aJavaClass setSourceFile:sourceFile.
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205 |
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|
206 |
Verbose ifTrue:[Transcript show:'sourceFile: '; showCr:sourceFile].
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207 |
^ true
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208 |
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|
209 |
"
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|
210 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
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211 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class'
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212 |
"
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|
213 |
|
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|
214 |
"Modified: 15.4.1996 / 15:33:28 / cg"
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|
215 |
"Created: 15.4.1996 / 15:40:17 / cg"
|
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|
216 |
!
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|
217 |
|
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|
218 |
readStream:aStream
|
|
7
|
219 |
"reads a class from aStream and returns it.
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|
220 |
The JavaClass is not installed as global"
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|
221 |
|
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5
|
222 |
inStream := aStream.
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|
223 |
inStream binary.
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|
224 |
^ self readClassFile
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|
225 |
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|
226 |
"
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|
227 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
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|
228 |
"
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|
229 |
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|
230 |
"Created: 15.4.1996 / 15:00:55 / cg"
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|
231 |
"Modified: 15.4.1996 / 15:06:18 / cg"
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|
232 |
! !
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|
233 |
|
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|
234 |
!JavaClassReader methodsFor:'file reading - attributes'!
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|
235 |
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|
236 |
readAttribute:attributeName for:something
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|
237 |
(attributeName = 'Code') ifTrue:[
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|
238 |
self readCodeAttributeFor:something.
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|
239 |
^ true.
|
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|
240 |
].
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|
241 |
(attributeName = 'LineNumberTable') ifTrue:[
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|
242 |
self readLineNumberTableAttributeFor:something.
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|
243 |
^ true.
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|
244 |
].
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|
245 |
(attributeName = 'LocalVariableTable') ifTrue:[
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|
246 |
self readLocalVariableTableAttributeFor:something.
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|
247 |
^ true.
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|
248 |
].
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|
249 |
(attributeName = 'ConstantValue') ifTrue:[
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|
250 |
self readConstantValueAttributeFor:something.
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|
251 |
^ true.
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|
252 |
].
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|
253 |
(attributeName = 'SourceFile') ifTrue:[
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|
254 |
self readSourceFileAttributeFor:something.
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|
255 |
^ true.
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|
256 |
].
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|
257 |
^ false
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258 |
|
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|
259 |
"
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|
260 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
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|
261 |
"
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|
262 |
|
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|
263 |
"Modified: 15.4.1996 / 15:33:28 / cg"
|
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|
264 |
"Created: 15.4.1996 / 15:40:17 / cg"
|
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|
265 |
!
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|
266 |
|
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|
267 |
readAttributeFor:something
|
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|
268 |
|attribute_name_index attribute_name attribute_length attribute_info|
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|
269 |
|
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9
|
270 |
Verbose ifTrue:[Transcript show:'attrib at pos: '; showCr:inStream position].
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|
271 |
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5
|
272 |
attribute_name_index := self nextU2.
|
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9
|
273 |
|
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|
274 |
"/
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|
275 |
"/ UNDOC feature ?
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|
276 |
"/
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|
277 |
attribute_name_index > constants size ifTrue:[
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|
278 |
attribute_name_index == 16rb700 ifTrue:[
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|
279 |
self halt.
|
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|
280 |
]
|
|
|
281 |
].
|
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|
282 |
|
|
5
|
283 |
attribute_name := constants at:attribute_name_index.
|
|
9
|
284 |
|
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|
285 |
Verbose ifTrue:[Transcript show:'attrib name: '; showCr:attribute_name].
|
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|
286 |
|
|
5
|
287 |
(self readAttribute:attribute_name for:something) ifFalse:[
|
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|
288 |
attribute_length := self nextU4.
|
|
|
289 |
attribute_info := ByteArray new:(attribute_length).
|
|
|
290 |
inStream nextBytes:attribute_length into:attribute_info startingAt:1.
|
|
|
291 |
|
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|
292 |
Verbose ifTrue:[Transcript show:'skipped '; show:attribute_name; showCr:'-attribute'].
|
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|
293 |
].
|
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|
294 |
|
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|
295 |
"
|
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|
296 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
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|
297 |
"
|
|
|
298 |
|
|
|
299 |
"Modified: 15.4.1996 / 15:33:28 / cg"
|
|
|
300 |
"Created: 15.4.1996 / 15:40:17 / cg"
|
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|
301 |
!
|
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|
302 |
|
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|
303 |
readAttributesFor:something
|
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|
304 |
|attributes_count|
|
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|
305 |
|
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|
306 |
attributes_count := self nextU2.
|
|
|
307 |
|
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|
308 |
1 to:attributes_count do:[:i |
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|
309 |
self readAttributeFor:something.
|
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|
310 |
].
|
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|
311 |
|
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|
312 |
"Modified: 15.4.1996 / 15:33:28 / cg"
|
|
|
313 |
"Created: 15.4.1996 / 15:40:17 / cg"
|
|
|
314 |
! !
|
|
|
315 |
|
|
|
316 |
!JavaClassReader methodsFor:'file reading - constants'!
|
|
|
317 |
|
|
1
|
318 |
readConstant
|
|
|
319 |
|tag constReader const|
|
|
|
320 |
|
|
|
321 |
|
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|
322 |
"/
|
|
|
323 |
"/ get tag
|
|
|
324 |
"/
|
|
|
325 |
tag := self nextU1.
|
|
|
326 |
Verbose ifTrue:[Transcript show:'tag = '; showCr:tag].
|
|
|
327 |
|
|
|
328 |
constReader := #(
|
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|
329 |
readConstant_Asciz "/ 1
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|
330 |
readConstant_Undef "/ 2
|
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|
331 |
readConstant_Integer "/ 3
|
|
|
332 |
readConstant_Float "/ 4
|
|
|
333 |
readConstant_Long "/ 5
|
|
|
334 |
readConstant_Double "/ 6
|
|
|
335 |
readConstant_Class "/ 7
|
|
|
336 |
readConstant_String "/ 8
|
|
|
337 |
readConstant_Fieldref "/ 9
|
|
|
338 |
readConstant_Methodref "/ 10
|
|
|
339 |
readConstant_InterfaceMethodref "/ 11
|
|
|
340 |
readConstant_NameandType "/ 12
|
|
|
341 |
) at:tag ifAbsent:[#readConstant_Undef].
|
|
|
342 |
|
|
|
343 |
^ self perform:constReader.
|
|
|
344 |
|
|
|
345 |
"
|
|
|
346 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
347 |
"
|
|
|
348 |
|
|
|
349 |
"Created: 15.4.1996 / 15:46:32 / cg"
|
|
|
350 |
"Modified: 15.4.1996 / 15:47:00 / cg"
|
|
|
351 |
!
|
|
|
352 |
|
|
|
353 |
readConstantPool
|
|
|
354 |
|constantPoolCount const|
|
|
|
355 |
|
|
|
356 |
"/
|
|
|
357 |
"/ get constant pool
|
|
|
358 |
"/
|
|
|
359 |
constantPoolCount := self nextU2.
|
|
|
360 |
Verbose ifTrue:[Transcript show:'constantPoolCount = '; showCr:constantPoolCount].
|
|
|
361 |
|
|
|
362 |
constants := Array new:constantPoolCount-1.
|
|
|
363 |
|
|
|
364 |
1 to:constantPoolCount-1 do:[:i |
|
|
|
365 |
Verbose ifTrue:[Transcript show:'const: '; showCr:i].
|
|
|
366 |
const := self readConstant.
|
|
|
367 |
constants at:i put:const
|
|
|
368 |
].
|
|
|
369 |
|
|
|
370 |
1 to:constantPoolCount-1 do:[:i |
|
|
|
371 |
|const|
|
|
|
372 |
|
|
|
373 |
const := constants at:i.
|
|
|
374 |
constants at:i put:(JavaUnresolvedConstant resolve:const from:constants).
|
|
|
375 |
].
|
|
|
376 |
|
|
|
377 |
"
|
|
|
378 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
379 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class'
|
|
|
380 |
"
|
|
|
381 |
|
|
|
382 |
"Created: 15.4.1996 / 15:14:11 / cg"
|
|
|
383 |
"Modified: 15.4.1996 / 16:41:57 / cg"
|
|
|
384 |
!
|
|
|
385 |
|
|
|
386 |
readConstant_Asciz
|
|
|
387 |
|len string|
|
|
|
388 |
|
|
|
389 |
len := self nextU2.
|
|
|
390 |
string := String new:len.
|
|
|
391 |
inStream nextBytes:len into:string startingAt:1.
|
|
|
392 |
|
|
|
393 |
Verbose ifTrue:[Transcript show:'asciz; string= '; showCr:string].
|
|
|
394 |
|
|
|
395 |
^ string
|
|
|
396 |
|
|
|
397 |
"
|
|
|
398 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
399 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class'
|
|
|
400 |
"
|
|
|
401 |
|
|
|
402 |
"Created: 15.4.1996 / 15:15:35 / cg"
|
|
|
403 |
"Modified: 15.4.1996 / 16:33:45 / cg"
|
|
|
404 |
!
|
|
|
405 |
|
|
|
406 |
readConstant_Class
|
|
|
407 |
|name_index|
|
|
|
408 |
|
|
|
409 |
name_index := self nextU2.
|
|
|
410 |
|
|
|
411 |
Verbose ifTrue:[Transcript show:'class; index= '; showCr:name_index].
|
|
|
412 |
|
|
|
413 |
^ JavaUnresolvedClassConstant nameIndex:name_index
|
|
|
414 |
|
|
|
415 |
"
|
|
|
416 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
417 |
"
|
|
|
418 |
|
|
|
419 |
"Created: 15.4.1996 / 15:21:13 / cg"
|
|
|
420 |
"Modified: 15.4.1996 / 15:49:32 / cg"
|
|
|
421 |
!
|
|
|
422 |
|
|
|
423 |
readConstant_Fieldref
|
|
|
424 |
|class_index name_and_type_index|
|
|
|
425 |
|
|
|
426 |
class_index := self nextU2.
|
|
|
427 |
name_and_type_index := self nextU2.
|
|
|
428 |
|
|
|
429 |
Verbose ifTrue:[Transcript show:'fieldref; classindex= '; showCr:class_index].
|
|
|
430 |
Verbose ifTrue:[Transcript show:'fieldref; name&typeindex= '; showCr:name_and_type_index].
|
|
|
431 |
|
|
|
432 |
^ JavaUnresolvedFieldrefConstant
|
|
|
433 |
classIndex:class_index
|
|
|
434 |
nameandTypeIndex:name_and_type_index
|
|
|
435 |
|
|
|
436 |
"
|
|
|
437 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
438 |
"
|
|
|
439 |
|
|
|
440 |
"Created: 15.4.1996 / 15:22:18 / cg"
|
|
|
441 |
"Modified: 15.4.1996 / 16:07:01 / cg"
|
|
|
442 |
!
|
|
|
443 |
|
|
|
444 |
readConstant_Integer
|
|
|
445 |
|value|
|
|
|
446 |
|
|
|
447 |
value := self nextU4.
|
|
|
448 |
|
|
|
449 |
Verbose ifTrue:[Transcript show:'integer; value= '; showCr:value].
|
|
|
450 |
|
|
|
451 |
^ value
|
|
|
452 |
|
|
|
453 |
"
|
|
|
454 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
455 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class'
|
|
|
456 |
"
|
|
|
457 |
|
|
|
458 |
"Modified: 15.4.1996 / 15:42:16 / cg"
|
|
|
459 |
"Created: 15.4.1996 / 16:34:42 / cg"
|
|
|
460 |
!
|
|
|
461 |
|
|
|
462 |
readConstant_Methodref
|
|
|
463 |
|class_index name_and_type_index|
|
|
|
464 |
|
|
|
465 |
class_index := self nextU2.
|
|
|
466 |
name_and_type_index := self nextU2.
|
|
|
467 |
|
|
|
468 |
Verbose ifTrue:[Transcript show:'methodref; classindex= '; showCr:class_index].
|
|
|
469 |
Verbose ifTrue:[Transcript show:'methodref; name&typeindex= '; showCr:name_and_type_index].
|
|
|
470 |
|
|
|
471 |
^ JavaUnresolvedMethodrefConstant
|
|
|
472 |
classIndex:class_index
|
|
|
473 |
nameandTypeIndex:name_and_type_index
|
|
|
474 |
|
|
|
475 |
"
|
|
|
476 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
477 |
"
|
|
|
478 |
|
|
|
479 |
"Created: 15.4.1996 / 15:22:37 / cg"
|
|
|
480 |
"Modified: 15.4.1996 / 16:07:19 / cg"
|
|
|
481 |
!
|
|
|
482 |
|
|
|
483 |
readConstant_NameandType
|
|
|
484 |
|name_index signature_index|
|
|
|
485 |
|
|
|
486 |
name_index := self nextU2.
|
|
|
487 |
signature_index := self nextU2.
|
|
|
488 |
|
|
|
489 |
Verbose ifTrue:[Transcript show:'methodref; nameindex= '; showCr:name_index].
|
|
|
490 |
Verbose ifTrue:[Transcript show:'methodref; signatureindex= '; showCr:signature_index].
|
|
|
491 |
|
|
|
492 |
^ JavaUnresolvedNameandTypeConstant
|
|
|
493 |
nameIndex:name_index
|
|
|
494 |
signatureIndex:signature_index
|
|
|
495 |
|
|
|
496 |
"
|
|
|
497 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
498 |
"
|
|
|
499 |
|
|
|
500 |
"Created: 15.4.1996 / 15:23:43 / cg"
|
|
|
501 |
"Modified: 15.4.1996 / 16:17:16 / cg"
|
|
|
502 |
!
|
|
|
503 |
|
|
|
504 |
readConstant_String
|
|
|
505 |
|tag string_index|
|
|
|
506 |
|
|
|
507 |
string_index := self nextU2.
|
|
|
508 |
|
|
|
509 |
Verbose ifTrue:[Transcript show:'string; index= '; showCr:string_index].
|
|
|
510 |
|
|
|
511 |
^ JavaUnresolvedStringConstant index:string_index
|
|
|
512 |
|
|
|
513 |
"
|
|
|
514 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
515 |
"
|
|
|
516 |
|
|
|
517 |
"Created: 15.4.1996 / 15:20:33 / cg"
|
|
|
518 |
"Modified: 15.4.1996 / 16:01:37 / cg"
|
|
5
|
519 |
! !
|
|
|
520 |
|
|
|
521 |
!JavaClassReader methodsFor:'file reading - fields'!
|
|
|
522 |
|
|
|
523 |
readConstantValueAttributeFor:aField
|
|
|
524 |
|attribute_length constantvalue_index constantValue|
|
|
|
525 |
|
|
|
526 |
attribute_length := self nextU4.
|
|
|
527 |
|
|
|
528 |
constantvalue_index := self nextU2.
|
|
|
529 |
constantValue := constants at:constantvalue_index.
|
|
|
530 |
|
|
|
531 |
Verbose ifTrue:[Transcript show:'constantValue: '; showCr:constantValue].
|
|
|
532 |
^ true
|
|
|
533 |
|
|
|
534 |
"
|
|
|
535 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
536 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class'
|
|
|
537 |
"
|
|
|
538 |
|
|
|
539 |
"Modified: 15.4.1996 / 15:33:28 / cg"
|
|
|
540 |
"Created: 15.4.1996 / 15:40:17 / cg"
|
|
1
|
541 |
!
|
|
|
542 |
|
|
|
543 |
readFieldInfofield
|
|
5
|
544 |
|access_flags name_index signature_index attributes_count field|
|
|
1
|
545 |
|
|
|
546 |
access_flags := self nextU2.
|
|
|
547 |
name_index := self nextU2.
|
|
|
548 |
signature_index := self nextU2.
|
|
5
|
549 |
|
|
|
550 |
field := JavaField new.
|
|
|
551 |
field setAccessFlags:access_flags.
|
|
|
552 |
field setName:(constants at:name_index).
|
|
|
553 |
field setSignature:(constants at:signature_index).
|
|
|
554 |
|
|
1
|
555 |
attributes_count := self nextU2.
|
|
|
556 |
|
|
|
557 |
1 to:attributes_count do:[:i |
|
|
5
|
558 |
self readAttributeFor:field.
|
|
1
|
559 |
].
|
|
|
560 |
|
|
|
561 |
"
|
|
|
562 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
563 |
"
|
|
|
564 |
|
|
|
565 |
"Modified: 15.4.1996 / 15:33:28 / cg"
|
|
|
566 |
"Created: 15.4.1996 / 15:38:43 / cg"
|
|
|
567 |
!
|
|
|
568 |
|
|
|
569 |
readFieldInfofields
|
|
|
570 |
|fieldsCount interface|
|
|
|
571 |
|
|
|
572 |
"/
|
|
|
573 |
"/ get interfaces
|
|
|
574 |
"/
|
|
|
575 |
fieldsCount := self nextU2.
|
|
|
576 |
Verbose ifTrue:[Transcript show:'fieldsCount = '; showCr:fieldsCount].
|
|
|
577 |
|
|
|
578 |
1 to:fieldsCount do:[:i |
|
|
|
579 |
Verbose ifTrue:[Transcript show:'field: '; showCr:i].
|
|
|
580 |
self readFieldInfofield
|
|
|
581 |
].
|
|
|
582 |
|
|
|
583 |
"
|
|
|
584 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
585 |
"
|
|
|
586 |
|
|
|
587 |
"Created: 15.4.1996 / 15:34:41 / cg"
|
|
|
588 |
"Modified: 15.4.1996 / 15:35:28 / cg"
|
|
5
|
589 |
! !
|
|
|
590 |
|
|
|
591 |
!JavaClassReader methodsFor:'file reading - methods'!
|
|
|
592 |
|
|
|
593 |
readCodeAttributeFor:aJavaMethod
|
|
|
594 |
|attribute_length max_stack max_locals code_length code
|
|
9
|
595 |
exception_table_length exception_table unknown1 unknown2|
|
|
1
|
596 |
|
|
5
|
597 |
attribute_length := self nextU4.
|
|
1
|
598 |
|
|
9
|
599 |
|
|
|
600 |
Verbose ifTrue:[Transcript show:'attribute_length: 0x'; showCr:(attribute_length printStringRadix:16)].
|
|
|
601 |
|
|
5
|
602 |
max_stack := self nextU1.
|
|
|
603 |
max_locals := self nextU1.
|
|
9
|
604 |
|
|
|
605 |
majorVsn > 2 ifTrue:[
|
|
|
606 |
unknown1 := self nextU2.
|
|
|
607 |
unknown2 := self nextU2.
|
|
|
608 |
].
|
|
|
609 |
|
|
5
|
610 |
code_length := self nextU2.
|
|
9
|
611 |
Verbose ifTrue:[Transcript show:'code_length: '; showCr:(code_length printStringRadix:16)].
|
|
|
612 |
Verbose ifTrue:[Transcript show:'code at pos: '; showCr:inStream position].
|
|
5
|
613 |
code := ByteArray new:code_length.
|
|
|
614 |
inStream nextBytes:code_length into:code startingAt:1.
|
|
1
|
615 |
|
|
9
|
616 |
Verbose ifTrue:[Transcript show:'method code:'; showCr:code.].
|
|
|
617 |
|
|
5
|
618 |
exception_table_length := self nextU2.
|
|
9
|
619 |
Verbose ifTrue:[Transcript show:'exception_table_length: '; showCr:(exception_table_length printStringRadix:16)].
|
|
5
|
620 |
exception_table_length ~~ 0 ifTrue:[
|
|
9
|
621 |
Verbose ifTrue:[Transcript show:'exceptionTable length:'; showCr:exception_table_length.].
|
|
|
622 |
|
|
5
|
623 |
exception_table := Array new:exception_table_length.
|
|
|
624 |
1 to:exception_table_length do:[:i |
|
|
|
625 |
|start_pc end_pc handler_pc catch_type|
|
|
1
|
626 |
|
|
5
|
627 |
start_pc := self nextU2.
|
|
|
628 |
end_pc := self nextU2.
|
|
|
629 |
handler_pc := self nextU2.
|
|
|
630 |
catch_type := self nextU2.
|
|
|
631 |
exception_table at:i put:(JavaExceptionTableEntry
|
|
|
632 |
startPC:start_pc
|
|
|
633 |
endPC:end_pc
|
|
|
634 |
handlerPC:handler_pc
|
|
|
635 |
catchType:catch_type).
|
|
|
636 |
].
|
|
1
|
637 |
].
|
|
|
638 |
|
|
5
|
639 |
aJavaMethod setExceptionTable:exception_table.
|
|
|
640 |
aJavaMethod setMaxStack:max_stack.
|
|
|
641 |
aJavaMethod setMaxLocals:max_locals.
|
|
|
642 |
aJavaMethod setCode:code.
|
|
|
643 |
|
|
|
644 |
self readAttributesFor:aJavaMethod.
|
|
|
645 |
^ true
|
|
|
646 |
|
|
1
|
647 |
"
|
|
|
648 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
5
|
649 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class'
|
|
1
|
650 |
"
|
|
|
651 |
|
|
|
652 |
"Modified: 15.4.1996 / 15:33:28 / cg"
|
|
5
|
653 |
"Created: 15.4.1996 / 15:40:17 / cg"
|
|
|
654 |
!
|
|
|
655 |
|
|
|
656 |
readLineNumberTableAttributeFor:aJavaMethod
|
|
|
657 |
|attribute_length line_number_table_length line_number_table|
|
|
|
658 |
|
|
|
659 |
attribute_length := self nextU4.
|
|
|
660 |
|
|
|
661 |
line_number_table_length := self nextU2.
|
|
|
662 |
line_number_table_length ~~ 0 ifTrue:[
|
|
|
663 |
line_number_table := Array new:line_number_table_length.
|
|
|
664 |
1 to:line_number_table_length do:[:i |
|
|
|
665 |
|start_pc line_number|
|
|
|
666 |
|
|
|
667 |
start_pc := self nextU2.
|
|
|
668 |
line_number := self nextU2.
|
|
|
669 |
line_number_table at:i put:(start_pc -> line_number).
|
|
|
670 |
].
|
|
|
671 |
].
|
|
|
672 |
|
|
9
|
673 |
Verbose ifTrue:[Transcript showCr:'method has a lineNumberTable'].
|
|
|
674 |
|
|
5
|
675 |
aJavaMethod setLineNumberTable:line_number_table.
|
|
|
676 |
^ true
|
|
|
677 |
|
|
|
678 |
"
|
|
|
679 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
680 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/java/lang/Boolean.class'
|
|
|
681 |
"
|
|
|
682 |
|
|
|
683 |
"Modified: 15.4.1996 / 15:33:28 / cg"
|
|
|
684 |
"Created: 15.4.1996 / 15:40:17 / cg"
|
|
1
|
685 |
!
|
|
|
686 |
|
|
|
687 |
readMethod
|
|
9
|
688 |
|m access_flags name_index name signature_index signature|
|
|
1
|
689 |
|
|
|
690 |
"/
|
|
|
691 |
"/ get a method
|
|
|
692 |
"/
|
|
|
693 |
access_flags := self nextU2.
|
|
|
694 |
name_index := self nextU2.
|
|
|
695 |
signature_index := self nextU2.
|
|
|
696 |
|
|
5
|
697 |
name := constants at:name_index.
|
|
|
698 |
signature := constants at:signature_index.
|
|
9
|
699 |
|
|
|
700 |
Verbose ifTrue:[Transcript show:'method name:'; showCr:name.
|
|
|
701 |
Transcript show:'signature:'; showCr:signature.].
|
|
|
702 |
|
|
5
|
703 |
m := JavaMethod new.
|
|
|
704 |
m setAccessFlags:access_flags.
|
|
|
705 |
m setSignature:signature.
|
|
|
706 |
m setName:name.
|
|
|
707 |
m setJavaClass:this_class.
|
|
|
708 |
|
|
|
709 |
self readAttributesFor:m.
|
|
|
710 |
|
|
|
711 |
this_class addMethod:m name:name signature:signature.
|
|
1
|
712 |
|
|
|
713 |
"
|
|
|
714 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
715 |
"
|
|
|
716 |
|
|
|
717 |
"Modified: 15.4.1996 / 15:33:28 / cg"
|
|
|
718 |
"Created: 15.4.1996 / 16:48:49 / cg"
|
|
|
719 |
!
|
|
|
720 |
|
|
|
721 |
readMethods
|
|
|
722 |
|methodsCount method|
|
|
|
723 |
|
|
|
724 |
|
|
|
725 |
"/
|
|
|
726 |
"/ get methods
|
|
|
727 |
"/
|
|
|
728 |
methodsCount := self nextU2.
|
|
|
729 |
Verbose ifTrue:[Transcript show:'methodsCount = '; showCr:methodsCount].
|
|
|
730 |
|
|
|
731 |
1 to:methodsCount do:[:i |
|
|
|
732 |
Verbose ifTrue:[Transcript show:'method: '; showCr:i].
|
|
|
733 |
method = self readMethod
|
|
|
734 |
].
|
|
|
735 |
|
|
|
736 |
"
|
|
|
737 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class'
|
|
|
738 |
"
|
|
|
739 |
|
|
|
740 |
"Modified: 15.4.1996 / 15:33:28 / cg"
|
|
|
741 |
"Created: 15.4.1996 / 16:46:30 / cg"
|
|
|
742 |
! !
|
|
|
743 |
|
|
|
744 |
!JavaClassReader methodsFor:'low level reading'!
|
|
|
745 |
|
|
|
746 |
nextU1
|
|
|
747 |
^ inStream nextByte
|
|
|
748 |
|
|
|
749 |
"Created: 15.4.1996 / 15:15:43 / cg"
|
|
|
750 |
!
|
|
|
751 |
|
|
|
752 |
nextU2
|
|
|
753 |
^ inStream nextUnsignedShortMSB:msb
|
|
|
754 |
|
|
|
755 |
"Created: 15.4.1996 / 15:12:25 / cg"
|
|
|
756 |
!
|
|
|
757 |
|
|
|
758 |
nextU4
|
|
|
759 |
^ inStream nextUnsignedLongMSB:msb
|
|
|
760 |
|
|
|
761 |
"Created: 15.4.1996 / 15:04:28 / cg"
|
|
|
762 |
! !
|
|
|
763 |
|
|
|
764 |
!JavaClassReader class methodsFor:'documentation'!
|
|
|
765 |
|
|
|
766 |
version
|
|
9
|
767 |
^ '$Header: /home/jv/Projects/SmalltalkX/repositories/cvs/stx/libjava/JavaClassReader.st,v 1.5 1996/04/16 18:21:29 cg Exp $'
|
|
1
|
768 |
! !
|
|
|
769 |
JavaClassReader initialize!
|