author | cg |
Thu, 27 Jun 1996 16:31:19 +0000 | |
changeset 86 | 3090f19a5be1 |
parent 83 | 2d61ef3579e4 |
child 91 | 9b325648aa77 |
permissions | -rw-r--r-- |
1 | 1 |
Object subclass:#JavaClassReader |
38 | 2 |
instanceVariableNames:'inStream msb constants version majorVsn minorVsn constNeeds2Slots |
3 |
constSlot' |
|
43 | 4 |
classVariableNames:'Verbose ClassPath Silent' |
1 | 5 |
poolDictionaries:'' |
6 |
category:'Java-Support' |
|
7 |
! |
|
8 |
||
9 |
||
62 | 10 |
!JavaClassReader class methodsFor:'initialization'! |
1 | 11 |
|
12 |
initialize |
|
43 | 13 |
Verbose := false. Silent := false. |
29 | 14 |
self initializeClassPath |
15 |
||
16 |
" |
|
17 |
JavaClassReader initialize |
|
18 |
" |
|
19 |
! |
|
20 |
||
21 |
initializeClassPath |
|
71 | 22 |
self initializeClassPath:#('/home/cg/java/'). |
83 | 23 |
self initializeClassPath:#('/home/cg/java/JDK/classes/' |
24 |
'/home/cg/java/JWS/classes/' |
|
25 |
'/home/cg/java/' ). |
|
71 | 26 |
|
27 |
"/ self initializeClassPath:#( |
|
28 |
"/ '/phys/ibm3/java/lib/' |
|
29 |
"/ '/phys/ibm3/hotjava/classes/' |
|
30 |
"/ ) |
|
29 | 31 |
|
32 |
" |
|
33 |
JavaClassReader initializeClassPath |
|
34 |
" |
|
62 | 35 |
! |
36 |
||
37 |
initializeClassPath:aCollectionOfDirectoryPathNames |
|
38 |
ClassPath := aCollectionOfDirectoryPathNames |
|
39 |
||
40 |
" |
|
41 |
JavaClassReader initializeClassPath:#( |
|
42 |
'/home/cg/java/' |
|
43 |
) |
|
44 |
" |
|
1 | 45 |
! ! |
46 |
||
62 | 47 |
!JavaClassReader class methodsFor:'debugging'! |
1 | 48 |
|
49 |
verbose:aBoolean |
|
50 |
Verbose := aBoolean |
|
51 |
||
52 |
" |
|
67 | 53 |
Java flushClasses. |
1 | 54 |
JavaClassReader verbose:true |
55 |
JavaClassReader verbose:false |
|
56 |
" |
|
57 |
! ! |
|
58 |
||
62 | 59 |
!JavaClassReader class methodsFor:'file reading'! |
1 | 60 |
|
21 | 61 |
loadClass:aClassName |
43 | 62 |
"reads a class, installs and returns it. |
63 |
The classes string constants are resolved & <clinit> is called, |
|
64 |
if it implements it." |
|
21 | 65 |
|
66 |
|rslt| |
|
67 |
||
54 | 68 |
rslt := self loadClassLazy:aClassName ignoring:Set new. |
43 | 69 |
self postLoadActions. |
40 | 70 |
|
38 | 71 |
^ rslt |
21 | 72 |
|
73 |
" |
|
74 |
JavaClassReader loadClass:'awt/Component' |
|
75 |
JavaClassReader loadClass:'awt/Button' |
|
76 |
JavaClassReader loadClass:'browser/AddButton' |
|
77 |
||
78 |
JavaClassReader loadClass:'java/lang/Object' |
|
79 |
JavaClassReader loadClass:'java/lang/AbstractMethodError' |
|
80 |
JavaClassReader loadClass:'java/lang/Thread' |
|
81 |
" |
|
82 |
||
83 |
"Created: 15.4.1996 / 14:58:53 / cg" |
|
84 |
! |
|
85 |
||
54 | 86 |
loadClassLazy:aClassName ignoring:classesBeingLoaded |
38 | 87 |
"private helper: |
88 |
reads a class, installs and returns it. |
|
89 |
The class is searched along the ClassPath. |
|
43 | 90 |
|
91 |
This is a partial load (to load other classes): |
|
92 |
- The classes stringConstants are not fixed to be JavaStrings |
|
93 |
(i.e they are still ST-Strings). |
|
94 |
- The class is not initialized." |
|
38 | 95 |
|
50 | 96 |
|rslt clsName| |
97 |
||
52 | 98 |
(aClassName endsWith:';') ifTrue:[ |
99 |
('oops - loading of ' , aClassName , ' attempted') printNL. |
|
100 |
self halt. |
|
101 |
^ nil |
|
102 |
]. |
|
103 |
||
50 | 104 |
clsName := aClassName. |
105 |
(clsName includes:$.) ifTrue:[ |
|
106 |
clsName := clsName copy replaceAll:$. by:$/ |
|
107 |
]. |
|
38 | 108 |
|
54 | 109 |
(classesBeingLoaded includes:clsName) ifTrue:[ |
110 |
('oops - recursive load of ' , clsName , ' attempted') printNL. |
|
111 |
"/ self halt. |
|
112 |
^ JavaUnresolvedClassConstant fullName:clsName |
|
113 |
]. |
|
114 |
||
115 |
classesBeingLoaded add:clsName. |
|
116 |
||
38 | 117 |
ClassPath do:[:path | |
54 | 118 |
rslt := self loadFileLazy:(path , clsName , '.class') |
119 |
ignoring:classesBeingLoaded. |
|
38 | 120 |
rslt notNil ifTrue:[^ rslt]. |
121 |
]. |
|
122 |
||
54 | 123 |
^ rslt |
38 | 124 |
! |
125 |
||
7 | 126 |
loadFile:aFilename |
43 | 127 |
"reads a class from aFilename, installs and returns it. |
128 |
The classes strings are fixed and its class-init function is called." |
|
129 |
||
54 | 130 |
self loadFileLazy:aFilename ignoring:(Set new). |
43 | 131 |
self postLoadActions |
132 |
! |
|
133 |
||
54 | 134 |
loadFileLazy:aFilename ignoring:classesBeingLoaded |
43 | 135 |
"reads a class from aFilename, installs and returns it. |
136 |
No strings are fixed and no class-init functions are called." |
|
7 | 137 |
|
21 | 138 |
|javaClass pool| |
7 | 139 |
|
54 | 140 |
javaClass := self readFile:aFilename ignoring:classesBeingLoaded. |
7 | 141 |
javaClass notNil ifTrue:[ |
32 | 142 |
Java at:(javaClass fullName asSymbol) put:javaClass. |
21 | 143 |
|
54 | 144 |
"/ javaClass resolveClassRefsIgnoring:classesBeingLoaded. |
145 |
||
146 |
classesBeingLoaded remove:javaClass fullName ifAbsent:nil. |
|
21 | 147 |
|
148 |
"/ Smalltalk at:(javaClass fullName asSymbol) put:javaClass. |
|
149 |
"/ Smalltalk changed. |
|
7 | 150 |
]. |
9 | 151 |
^ javaClass |
7 | 152 |
|
153 |
" |
|
154 |
JavaClassReader loadFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
9 | 155 |
|
156 |
'/phys/ibm3/java/lib/java/lang' asFilename |
|
157 |
directoryContents do:[:nm | |
|
158 |
(nm endsWith:'.class') ifTrue:[ |
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159 |
('/phys/ibm3/java/lib/java/lang/' , nm) printNL. |
9 | 160 |
JavaClassReader loadFile:'/phys/ibm3/java/lib/java/lang/' , nm |
161 |
] |
|
21 | 162 |
]. |
9 | 163 |
|
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'/phys/ibm3/java/lib/java/io' asFilename |
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directoryContents do:[:nm | |
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(nm endsWith:'.class') ifTrue:[ |
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('/phys/ibm3/java/lib/java/io/' , nm) printNL. |
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JavaClassReader loadFile:'/phys/ibm3/java/lib/java/io/' , nm |
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] |
21 | 170 |
]. |
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|
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'/phys/ibm3/java/lib/java/net' asFilename |
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directoryContents do:[:nm | |
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(nm endsWith:'.class') ifTrue:[ |
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('/phys/ibm3/java/lib/java/net/' , nm) printNL. |
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JavaClassReader loadFile:'/phys/ibm3/java/lib/java/net/' , nm |
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] |
21 | 178 |
]. |
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|
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'/phys/ibm3/java/lib/java/util' asFilename |
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directoryContents do:[:nm | |
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(nm endsWith:'.class') ifTrue:[ |
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('/phys/ibm3/java/lib/java/util/' , nm) printNL. |
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JavaClassReader loadFile:'/phys/ibm3/java/lib/java/util/' , nm |
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] |
21 | 186 |
]. |
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|
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'/phys/ibm3/java/lib/java/awt' asFilename |
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directoryContents do:[:nm | |
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(nm endsWith:'.class') ifTrue:[ |
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('/phys/ibm3/java/lib/java/awt/' , nm) printNL. |
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JavaClassReader loadFile:'/phys/ibm3/java/lib/java/awt/' , nm |
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193 |
] |
21 | 194 |
]. |
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|
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'/phys/ibm3/java/lib/java/applet' asFilename |
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directoryContents do:[:nm | |
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(nm endsWith:'.class') ifTrue:[ |
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199 |
('/phys/ibm3/java/lib/java/applet/' , nm) printNL. |
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JavaClassReader loadFile:'/phys/ibm3/java/lib/java/applet/' , nm |
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201 |
] |
21 | 202 |
]. |
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|
203 |
|
9 | 204 |
JavaClassReader loadFile:'/phys/ibm3/java/lib/java/lang/AbstractMethodError.class' |
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205 |
JavaClassReader loadFile:'/phys/ibm3/java/lib/java/lang/Thread.class' |
7 | 206 |
" |
207 |
||
208 |
"Created: 15.4.1996 / 14:58:53 / cg" |
|
209 |
! |
|
210 |
||
43 | 211 |
postLoadActions |
212 |
"Resolve all classes' string constants. |
|
213 |
Perform all class initialization functions (of those which are not |
|
214 |
yet initialized)." |
|
215 |
||
216 |
JavaUnresolvedStringConstant patchupStringConstants. |
|
217 |
||
218 |
Java allClassesDo:[:aJavaClass | |
|
54 | 219 |
aJavaClass resolveClassRefsIgnoring:Set new. |
220 |
]. |
|
221 |
||
222 |
Java allClassesDo:[:aJavaClass | |
|
43 | 223 |
aJavaClass isInitialized ifFalse:[ |
224 |
aJavaClass classInit |
|
225 |
] |
|
226 |
] |
|
227 |
! |
|
228 |
||
54 | 229 |
readFile:aFilename ignoring:classesBeingLoaded |
7 | 230 |
"reads a class from aFilename and returns it. |
43 | 231 |
The JavaClass is NOT installed as global" |
7 | 232 |
|
73 | 233 |
|inStream javaClass| |
1 | 234 |
|
43 | 235 |
Silent ifFalse:[ |
236 |
'reading ' print. aFilename print. ' ...' printNL. |
|
237 |
]. |
|
21 | 238 |
|
1 | 239 |
inStream := aFilename asFilename readStream. |
27 | 240 |
inStream isNil ifTrue:['nil' printNL. ^ nil]. |
73 | 241 |
javaClass := self readStream:inStream ignoring:classesBeingLoaded. |
242 |
javaClass notNil ifTrue:[ |
|
243 |
javaClass setBinaryFilePath:(inStream pathName). |
|
244 |
]. |
|
1 | 245 |
inStream close. |
27 | 246 |
|
43 | 247 |
Silent ifFalse:[ |
73 | 248 |
' ... loaded ' print. javaClass displayString printNL. |
43 | 249 |
]. |
27 | 250 |
|
73 | 251 |
^ javaClass |
1 | 252 |
|
253 |
"Created: 15.4.1996 / 14:58:53 / cg" |
|
254 |
! |
|
255 |
||
54 | 256 |
readStream:aStream ignoring:classesBeingLoaded |
7 | 257 |
"reads a class from aStream and returns it. |
258 |
The JavaClass is not installed as global" |
|
259 |
||
54 | 260 |
^ self new readStream:aStream ignoring:classesBeingLoaded |
1 | 261 |
|
262 |
" |
|
263 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
264 |
" |
|
265 |
||
266 |
"Modified: 15.4.1996 / 15:01:30 / cg" |
|
267 |
! ! |
|
268 |
||
269 |
!JavaClassReader methodsFor:'file reading'! |
|
270 |
||
54 | 271 |
readClassFileIgnoring:classesbeingLoaded |
7 | 272 |
"reads a class from inStream and returns it. |
38 | 273 |
The JavaClass is not installed as global and its constants |
274 |
(especially strings) may not be fully resolved." |
|
7 | 275 |
|
9 | 276 |
|magic |
38 | 277 |
access_flags this_class this_class_index super_class super_class_index |
278 |
realSuperClass this_class_ref existingSuperClass |
|
40 | 279 |
fields interfaces staticFields nStatic| |
1 | 280 |
|
281 |
"/ |
|
282 |
"/ read magic, determine byte order |
|
283 |
"/ |
|
284 |
msb := true. |
|
285 |
magic := self nextU4. |
|
286 |
magic = 16rCAFEBABE ifFalse:[ |
|
287 |
magic = 16rBEBAFECA ifFalse:[ |
|
288 |
self error:'not a java class file'. |
|
289 |
^ nil |
|
290 |
]. |
|
291 |
msb := false. |
|
61 | 292 |
Verbose ifTrue:[Transcript showCR:'file is lsb']. |
1 | 293 |
] ifTrue:[ |
61 | 294 |
Verbose ifTrue:[Transcript showCR:'file is msb']. |
1 | 295 |
]. |
296 |
||
297 |
"/ |
|
298 |
"/ get version |
|
299 |
"/ |
|
300 |
version := self nextU4. |
|
9 | 301 |
majorVsn := (version bitShift:-16) bitAnd:16rFFFF. |
302 |
minorVsn := version bitAnd:16rFFFF. |
|
303 |
||
304 |
Verbose ifTrue:[Transcript show:'version = '; |
|
305 |
show:(majorVsn printString); |
|
306 |
show:'.'; |
|
61 | 307 |
showCR:(minorVsn printString)]. |
1 | 308 |
|
309 |
"/ |
|
310 |
"/ get constant pool |
|
311 |
"/ |
|
312 |
self readConstantPool. |
|
313 |
||
314 |
"/ |
|
315 |
"/ access flags |
|
316 |
"/ |
|
317 |
access_flags := self nextU2. |
|
318 |
this_class_index := self nextU2. |
|
319 |
super_class_index := self nextU2. |
|
320 |
||
40 | 321 |
"/ this_class_ref := constants at:this_class_index. |
322 |
"/ this_class := JavaClass fullName:(this_class_ref fullName). |
|
21 | 323 |
|
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|
324 |
super_class_index == 0 ifTrue:[ |
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325 |
super_class := nil |
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|
326 |
] ifFalse:[ |
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|
327 |
super_class := constants at:super_class_index. |
32 | 328 |
existingSuperClass := Java classNamed:super_class fullName. |
21 | 329 |
existingSuperClass notNil ifTrue:[ |
330 |
super_class := existingSuperClass |
|
54 | 331 |
] ifFalse:[ |
332 |
(super_class isMemberOf:JavaUnresolvedClassConstant) ifTrue:[ |
|
333 |
existingSuperClass := super_class resolve. |
|
334 |
existingSuperClass isNil ifTrue:[ |
|
72 | 335 |
existingSuperClass := self class |
54 | 336 |
loadClassLazy:(super_class fullName) |
337 |
ignoring:classesbeingLoaded. |
|
338 |
]. |
|
72 | 339 |
existingSuperClass isNil ifTrue:[ |
54 | 340 |
self halt:('cannot find superclass: ' , super_class fullName). |
72 | 341 |
]. |
342 |
super_class := existingSuperClass |
|
29 | 343 |
]. |
344 |
]. |
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|
345 |
]. |
1 | 346 |
|
347 |
"/ |
|
348 |
"/ get interfaces |
|
349 |
"/ |
|
38 | 350 |
interfaces := self readInterfaces. |
1 | 351 |
|
352 |
"/ |
|
353 |
"/ get fields |
|
354 |
"/ |
|
38 | 355 |
fields := self readFieldInfofields. |
40 | 356 |
|
357 |
"/ |
|
358 |
"/ create the fields as instVars |
|
359 |
"/ static fields are created as class-InstVars |
|
360 |
"/ |
|
361 |
staticFields := fields select:[:f | f isStatic]. |
|
362 |
nStatic := staticFields size. |
|
363 |
||
364 |
this_class_ref := constants at:this_class_index. |
|
365 |
nStatic ~~ 0 ifTrue:[ |
|
366 |
fields := fields select:[:f | f isStatic not]. |
|
367 |
||
368 |
this_class := JavaClass fullName:(this_class_ref fullName) numStatic:nStatic. |
|
369 |
JavaClass setInstanceVariableStringFromFields:staticFields in:this_class class. |
|
59 | 370 |
this_class setStaticFields:staticFields. |
60 | 371 |
this_class initializeStaticFields. |
40 | 372 |
] ifFalse:[ |
373 |
this_class := JavaClass fullName:(this_class_ref fullName). |
|
374 |
]. |
|
375 |
||
376 |
this_class setAccessFlags:access_flags. |
|
377 |
this_class setSuperclass:super_class. |
|
378 |
this_class setConstantPool:constants. |
|
379 |
||
52 | 380 |
this_class setFields:fields. |
1 | 381 |
|
382 |
"/ |
|
383 |
"/ get methods |
|
384 |
"/ |
|
38 | 385 |
self readMethodsFor:this_class. |
1 | 386 |
|
5 | 387 |
self readAttributesFor:this_class. |
388 |
||
389 |
^ this_class |
|
390 |
||
1 | 391 |
" |
392 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
393 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
9 | 394 |
|
395 |
JavaClassReader verbose:true. |
|
396 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/java/lang/ArithmeticException.class' |
|
397 |
JavaClassReader readFile:'/phys/ibm3/java/lib/java/lang/ArithmeticException.class' |
|
1 | 398 |
" |
399 |
||
400 |
"Created: 15.4.1996 / 15:02:47 / cg" |
|
401 |
"Modified: 15.4.1996 / 16:51:48 / cg" |
|
402 |
! |
|
403 |
||
5 | 404 |
readSourceFileAttributeFor:aJavaClass |
405 |
|attribute_length sourceFile_index sourceFile| |
|
406 |
||
407 |
attribute_length := self nextU4. |
|
408 |
||
409 |
sourceFile_index := self nextU2. |
|
410 |
sourceFile := constants at:sourceFile_index. |
|
411 |
||
412 |
aJavaClass setSourceFile:sourceFile. |
|
413 |
||
61 | 414 |
Verbose ifTrue:[Transcript show:'sourceFile: '; showCR:sourceFile]. |
5 | 415 |
^ true |
416 |
||
417 |
" |
|
418 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
419 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
420 |
" |
|
421 |
||
422 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
423 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
424 |
! |
|
425 |
||
54 | 426 |
readStream:aStream ignoring:classesBeingLoaded |
7 | 427 |
"reads a class from aStream and returns it. |
428 |
The JavaClass is not installed as global" |
|
429 |
||
5 | 430 |
inStream := aStream. |
431 |
inStream binary. |
|
38 | 432 |
|
54 | 433 |
^ self readClassFileIgnoring:classesBeingLoaded |
5 | 434 |
|
435 |
" |
|
436 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
437 |
" |
|
438 |
||
439 |
"Created: 15.4.1996 / 15:00:55 / cg" |
|
440 |
"Modified: 15.4.1996 / 15:06:18 / cg" |
|
441 |
! ! |
|
442 |
||
443 |
!JavaClassReader methodsFor:'file reading - attributes'! |
|
444 |
||
445 |
readAttribute:attributeName for:something |
|
83 | 446 |
|
5 | 447 |
(attributeName = 'Code') ifTrue:[ |
448 |
self readCodeAttributeFor:something. |
|
449 |
^ true. |
|
450 |
]. |
|
83 | 451 |
(attributeName = 'Exceptions') ifTrue:[ |
452 |
self readExceptionsAttributeFor:something. |
|
453 |
^ true. |
|
454 |
]. |
|
5 | 455 |
(attributeName = 'LineNumberTable') ifTrue:[ |
456 |
self readLineNumberTableAttributeFor:something. |
|
457 |
^ true. |
|
458 |
]. |
|
459 |
(attributeName = 'LocalVariableTable') ifTrue:[ |
|
460 |
self readLocalVariableTableAttributeFor:something. |
|
461 |
^ true. |
|
462 |
]. |
|
463 |
(attributeName = 'ConstantValue') ifTrue:[ |
|
464 |
self readConstantValueAttributeFor:something. |
|
465 |
^ true. |
|
466 |
]. |
|
467 |
(attributeName = 'SourceFile') ifTrue:[ |
|
468 |
self readSourceFileAttributeFor:something. |
|
469 |
^ true. |
|
470 |
]. |
|
83 | 471 |
|
472 |
('JAVA: unrecognized attribute: ' , attributeName) infoPrintCR. |
|
5 | 473 |
^ false |
474 |
||
475 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
476 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
477 |
! |
|
478 |
||
479 |
readAttributeFor:something |
|
480 |
|attribute_name_index attribute_name attribute_length attribute_info| |
|
481 |
||
61 | 482 |
Verbose ifTrue:[Transcript show:'attrib at pos: '; showCR:inStream position]. |
9 | 483 |
|
5 | 484 |
attribute_name_index := self nextU2. |
9 | 485 |
|
486 |
"/ |
|
487 |
"/ UNDOC feature ? |
|
488 |
"/ |
|
489 |
attribute_name_index > constants size ifTrue:[ |
|
490 |
attribute_name_index == 16rb700 ifTrue:[ |
|
491 |
self halt. |
|
492 |
] |
|
493 |
]. |
|
494 |
||
5 | 495 |
attribute_name := constants at:attribute_name_index. |
9 | 496 |
|
61 | 497 |
Verbose ifTrue:[Transcript show:'attrib name: '; showCR:attribute_name]. |
9 | 498 |
|
5 | 499 |
(self readAttribute:attribute_name for:something) ifFalse:[ |
500 |
attribute_length := self nextU4. |
|
501 |
attribute_info := ByteArray new:(attribute_length). |
|
502 |
inStream nextBytes:attribute_length into:attribute_info startingAt:1. |
|
503 |
||
61 | 504 |
Verbose ifTrue:[Transcript show:'skipped '; show:attribute_name; showCR:'-attribute']. |
5 | 505 |
]. |
506 |
||
507 |
" |
|
508 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
509 |
" |
|
510 |
||
511 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
512 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
513 |
! |
|
514 |
||
515 |
readAttributesFor:something |
|
516 |
|attributes_count| |
|
517 |
||
518 |
attributes_count := self nextU2. |
|
519 |
||
520 |
1 to:attributes_count do:[:i | |
|
521 |
self readAttributeFor:something. |
|
522 |
]. |
|
523 |
||
524 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
525 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
526 |
! ! |
|
527 |
||
528 |
!JavaClassReader methodsFor:'file reading - constants'! |
|
529 |
||
1 | 530 |
readConstant |
531 |
|tag constReader const| |
|
532 |
||
533 |
||
11 | 534 |
constNeeds2Slots := false. |
535 |
||
1 | 536 |
"/ |
537 |
"/ get tag |
|
538 |
"/ |
|
539 |
tag := self nextU1. |
|
61 | 540 |
Verbose ifTrue:[Transcript show:'tag = '; showCR:tag]. |
1 | 541 |
|
542 |
constReader := #( |
|
543 |
readConstant_Asciz "/ 1 |
|
544 |
readConstant_Undef "/ 2 |
|
545 |
readConstant_Integer "/ 3 |
|
546 |
readConstant_Float "/ 4 |
|
547 |
readConstant_Long "/ 5 |
|
548 |
readConstant_Double "/ 6 |
|
549 |
readConstant_Class "/ 7 |
|
550 |
readConstant_String "/ 8 |
|
551 |
readConstant_Fieldref "/ 9 |
|
552 |
readConstant_Methodref "/ 10 |
|
553 |
readConstant_InterfaceMethodref "/ 11 |
|
554 |
readConstant_NameandType "/ 12 |
|
555 |
) at:tag ifAbsent:[#readConstant_Undef]. |
|
556 |
||
557 |
^ self perform:constReader. |
|
558 |
||
559 |
" |
|
560 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
561 |
" |
|
562 |
||
563 |
"Created: 15.4.1996 / 15:46:32 / cg" |
|
564 |
"Modified: 15.4.1996 / 15:47:00 / cg" |
|
565 |
! |
|
566 |
||
567 |
readConstantPool |
|
11 | 568 |
|constantPoolCount const i| |
1 | 569 |
|
570 |
"/ |
|
571 |
"/ get constant pool |
|
572 |
"/ |
|
573 |
constantPoolCount := self nextU2. |
|
61 | 574 |
Verbose ifTrue:[Transcript show:'constantPoolCount = '; showCR:constantPoolCount]. |
1 | 575 |
|
576 |
constants := Array new:constantPoolCount-1. |
|
577 |
||
21 | 578 |
constSlot := 1. |
579 |
[constSlot < constantPoolCount] whileTrue:[ |
|
61 | 580 |
Verbose ifTrue:[Transcript show:'const: '; showCR:constSlot]. |
1 | 581 |
const := self readConstant. |
21 | 582 |
constants at:constSlot put:const. |
11 | 583 |
constNeeds2Slots ifTrue:[ |
21 | 584 |
constSlot := constSlot + 1. |
11 | 585 |
]. |
21 | 586 |
constSlot := constSlot + 1. |
1 | 587 |
]. |
588 |
||
52 | 589 |
constSlot := -1. |
590 |
||
1 | 591 |
1 to:constantPoolCount-1 do:[:i | |
67 | 592 |
|const value| |
1 | 593 |
|
594 |
const := constants at:i. |
|
38 | 595 |
const notNil ifTrue:[ "/ kludge for 2-slot constants (which only take 1 slot in ST/X) |
67 | 596 |
value := JavaUnresolvedConstant resolve:const from:constants. |
597 |
constants at:i put:value. |
|
11 | 598 |
] |
1 | 599 |
]. |
600 |
||
601 |
" |
|
602 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
603 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
604 |
" |
|
605 |
||
606 |
"Created: 15.4.1996 / 15:14:11 / cg" |
|
607 |
"Modified: 15.4.1996 / 16:41:57 / cg" |
|
608 |
! |
|
609 |
||
610 |
readConstant_Asciz |
|
611 |
|len string| |
|
612 |
||
613 |
len := self nextU2. |
|
614 |
string := String new:len. |
|
615 |
inStream nextBytes:len into:string startingAt:1. |
|
616 |
||
61 | 617 |
Verbose ifTrue:[Transcript show:'asciz; string= '; showCR:string]. |
1 | 618 |
|
619 |
^ string |
|
620 |
||
621 |
" |
|
622 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
623 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
624 |
" |
|
625 |
||
626 |
"Created: 15.4.1996 / 15:15:35 / cg" |
|
627 |
"Modified: 15.4.1996 / 16:33:45 / cg" |
|
628 |
! |
|
629 |
||
630 |
readConstant_Class |
|
52 | 631 |
|name_index name| |
1 | 632 |
|
633 |
name_index := self nextU2. |
|
634 |
||
61 | 635 |
Verbose ifTrue:[Transcript show:'class; index= '; showCR:name_index]. |
1 | 636 |
|
52 | 637 |
name := constants at:name_index. |
638 |
name notNil ifTrue:[ |
|
639 |
self halt |
|
640 |
]. |
|
641 |
||
21 | 642 |
^ JavaUnresolvedClassConstant |
643 |
nameIndex:name_index |
|
644 |
pool:constants |
|
645 |
slotIndex:constSlot |
|
1 | 646 |
" |
647 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
648 |
" |
|
649 |
||
650 |
"Created: 15.4.1996 / 15:21:13 / cg" |
|
651 |
"Modified: 15.4.1996 / 15:49:32 / cg" |
|
652 |
! |
|
653 |
||
11 | 654 |
readConstant_Double |
655 |
|high low aFloat| |
|
656 |
||
657 |
high := self nextU4. |
|
658 |
low := self nextU4. |
|
659 |
||
660 |
aFloat := Float new. |
|
661 |
UninterpretedBytes isBigEndian ifTrue:[ |
|
662 |
aFloat basicAt:1 put:((high bitShift:-24) bitAnd:16rFF). |
|
663 |
aFloat basicAt:2 put:((high bitShift:-16) bitAnd:16rFF). |
|
664 |
aFloat basicAt:3 put:((high bitShift:-8) bitAnd:16rFF). |
|
665 |
aFloat basicAt:4 put:(high bitAnd:16rFF). |
|
666 |
aFloat basicAt:5 put:((low bitShift:-24) bitAnd:16rFF). |
|
667 |
aFloat basicAt:6 put:((low bitShift:-16) bitAnd:16rFF). |
|
668 |
aFloat basicAt:7 put:((low bitShift:-8) bitAnd:16rFF). |
|
669 |
aFloat basicAt:8 put:(low bitAnd:16rFF). |
|
670 |
] ifFalse:[ |
|
671 |
aFloat basicAt:1 put:(low bitAnd:16rFF). |
|
672 |
aFloat basicAt:2 put:((low bitShift:-8) bitAnd:16rFF). |
|
673 |
aFloat basicAt:3 put:((low bitShift:-16) bitAnd:16rFF). |
|
674 |
aFloat basicAt:4 put:((low bitShift:-24) bitAnd:16rFF). |
|
675 |
aFloat basicAt:5 put:(high bitAnd:16rFF). |
|
676 |
aFloat basicAt:6 put:((high bitShift:-8) bitAnd:16rFF). |
|
677 |
aFloat basicAt:7 put:((high bitShift:-16) bitAnd:16rFF). |
|
678 |
aFloat basicAt:8 put:((high bitShift:-24) bitAnd:16rFF). |
|
679 |
]. |
|
680 |
||
681 |
constNeeds2Slots := true. |
|
682 |
||
61 | 683 |
Verbose ifTrue:[Transcript show:'double; value= '; showCR:aFloat]. |
11 | 684 |
^ aFloat |
685 |
||
686 |
" |
|
687 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
688 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
689 |
" |
|
690 |
||
691 |
"Modified: 15.4.1996 / 15:42:16 / cg" |
|
692 |
"Created: 15.4.1996 / 16:34:42 / cg" |
|
693 |
! |
|
694 |
||
1 | 695 |
readConstant_Fieldref |
696 |
|class_index name_and_type_index| |
|
697 |
||
698 |
class_index := self nextU2. |
|
699 |
name_and_type_index := self nextU2. |
|
700 |
||
61 | 701 |
Verbose ifTrue:[Transcript show:'fieldref; classindex= '; showCR:class_index]. |
702 |
Verbose ifTrue:[Transcript show:'fieldref; name&typeindex= '; showCR:name_and_type_index]. |
|
1 | 703 |
|
704 |
^ JavaUnresolvedFieldrefConstant |
|
705 |
classIndex:class_index |
|
706 |
nameandTypeIndex:name_and_type_index |
|
707 |
||
708 |
" |
|
709 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
710 |
" |
|
711 |
||
712 |
"Created: 15.4.1996 / 15:22:18 / cg" |
|
713 |
"Modified: 15.4.1996 / 16:07:01 / cg" |
|
714 |
! |
|
715 |
||
11 | 716 |
readConstant_Float |
717 |
|high aFloat| |
|
718 |
||
719 |
high := self nextU4. |
|
720 |
||
721 |
aFloat := ShortFloat basicNew. |
|
722 |
UninterpretedBytes isBigEndian ifTrue:[ |
|
723 |
aFloat basicAt:1 put:((high bitShift:-24) bitAnd:16rFF). |
|
724 |
aFloat basicAt:2 put:((high bitShift:-16) bitAnd:16rFF). |
|
725 |
aFloat basicAt:3 put:((high bitShift:-8) bitAnd:16rFF). |
|
726 |
aFloat basicAt:4 put:(high bitAnd:16rFF). |
|
727 |
] ifFalse:[ |
|
14
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
728 |
aFloat basicAt:1 put:(high bitAnd:16rFF). |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
729 |
aFloat basicAt:2 put:((high bitShift:-8) bitAnd:16rFF). |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
730 |
aFloat basicAt:3 put:((high bitShift:-16) bitAnd:16rFF). |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
731 |
aFloat basicAt:4 put:((high bitShift:-24) bitAnd:16rFF). |
11 | 732 |
]. |
733 |
||
61 | 734 |
Verbose ifTrue:[Transcript show:'float; value= '; showCR:aFloat]. |
11 | 735 |
^ aFloat |
736 |
||
737 |
" |
|
738 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
739 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
740 |
" |
|
741 |
||
742 |
"Modified: 15.4.1996 / 15:42:16 / cg" |
|
743 |
"Created: 15.4.1996 / 16:34:42 / cg" |
|
744 |
! |
|
745 |
||
1 | 746 |
readConstant_Integer |
747 |
|value| |
|
748 |
||
60 | 749 |
value := self nextS4. |
1 | 750 |
|
61 | 751 |
Verbose ifTrue:[Transcript show:'integer; value= '; showCR:value]. |
1 | 752 |
|
753 |
^ value |
|
754 |
||
755 |
" |
|
756 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
757 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
758 |
" |
|
759 |
||
760 |
"Modified: 15.4.1996 / 15:42:16 / cg" |
|
761 |
"Created: 15.4.1996 / 16:34:42 / cg" |
|
762 |
! |
|
763 |
||
14
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
764 |
readConstant_InterfaceMethodref |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
765 |
|class_index name_and_type_index| |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
766 |
|
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
767 |
class_index := self nextU2. |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
768 |
name_and_type_index := self nextU2. |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
769 |
|
61 | 770 |
Verbose ifTrue:[Transcript show:'methodref; classindex= '; showCR:class_index]. |
771 |
Verbose ifTrue:[Transcript show:'methodref; name&typeindex= '; showCR:name_and_type_index]. |
|
14
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
772 |
|
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
773 |
^ JavaUnresolvedInterfaceMethodrefConstant |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
774 |
classIndex:class_index |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
775 |
nameandTypeIndex:name_and_type_index |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
776 |
|
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
777 |
" |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
778 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
779 |
" |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
780 |
|
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
781 |
"Created: 15.4.1996 / 15:22:37 / cg" |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
782 |
"Modified: 15.4.1996 / 16:07:19 / cg" |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
783 |
! |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
784 |
|
11 | 785 |
readConstant_Long |
786 |
|high low value| |
|
787 |
||
788 |
high := self nextU4. |
|
789 |
low := self nextU4. |
|
790 |
||
791 |
value := (high bitShift:32) bitOr:low. |
|
60 | 792 |
(high bitTest:16r80000000) ifTrue:[ |
793 |
value := value - 16r10000000000000000. |
|
794 |
]. |
|
11 | 795 |
constNeeds2Slots := true. |
796 |
||
61 | 797 |
Verbose ifTrue:[Transcript show:'long; value= '; showCR:value]. |
11 | 798 |
^ value |
799 |
||
800 |
" |
|
801 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
802 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
803 |
" |
|
804 |
||
805 |
"Modified: 15.4.1996 / 15:42:16 / cg" |
|
806 |
"Created: 15.4.1996 / 16:34:42 / cg" |
|
807 |
! |
|
808 |
||
1 | 809 |
readConstant_Methodref |
810 |
|class_index name_and_type_index| |
|
811 |
||
812 |
class_index := self nextU2. |
|
813 |
name_and_type_index := self nextU2. |
|
814 |
||
61 | 815 |
Verbose ifTrue:[Transcript show:'methodref; classindex= '; showCR:class_index]. |
816 |
Verbose ifTrue:[Transcript show:'methodref; name&typeindex= '; showCR:name_and_type_index]. |
|
1 | 817 |
|
818 |
^ JavaUnresolvedMethodrefConstant |
|
819 |
classIndex:class_index |
|
820 |
nameandTypeIndex:name_and_type_index |
|
821 |
||
822 |
" |
|
823 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
824 |
" |
|
825 |
||
826 |
"Created: 15.4.1996 / 15:22:37 / cg" |
|
827 |
"Modified: 15.4.1996 / 16:07:19 / cg" |
|
828 |
! |
|
829 |
||
830 |
readConstant_NameandType |
|
831 |
|name_index signature_index| |
|
832 |
||
833 |
name_index := self nextU2. |
|
834 |
signature_index := self nextU2. |
|
835 |
||
61 | 836 |
Verbose ifTrue:[Transcript show:'methodref; nameindex= '; showCR:name_index]. |
837 |
Verbose ifTrue:[Transcript show:'methodref; signatureindex= '; showCR:signature_index]. |
|
1 | 838 |
|
839 |
^ JavaUnresolvedNameandTypeConstant |
|
840 |
nameIndex:name_index |
|
841 |
signatureIndex:signature_index |
|
842 |
||
843 |
" |
|
844 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
845 |
" |
|
846 |
||
847 |
"Created: 15.4.1996 / 15:23:43 / cg" |
|
848 |
"Modified: 15.4.1996 / 16:17:16 / cg" |
|
849 |
! |
|
850 |
||
851 |
readConstant_String |
|
852 |
|tag string_index| |
|
853 |
||
854 |
string_index := self nextU2. |
|
855 |
||
61 | 856 |
Verbose ifTrue:[Transcript show:'string; index= '; showCR:string_index]. |
1 | 857 |
|
858 |
^ JavaUnresolvedStringConstant index:string_index |
|
859 |
||
860 |
" |
|
43 | 861 |
Verbose := true. |
862 |
JavaClassReader readFile:'/phys/ibm3/java/lib/java/lang/System.class' |
|
1 | 863 |
" |
864 |
||
865 |
"Created: 15.4.1996 / 15:20:33 / cg" |
|
866 |
"Modified: 15.4.1996 / 16:01:37 / cg" |
|
5 | 867 |
! ! |
868 |
||
869 |
!JavaClassReader methodsFor:'file reading - fields'! |
|
870 |
||
871 |
readConstantValueAttributeFor:aField |
|
872 |
|attribute_length constantvalue_index constantValue| |
|
873 |
||
874 |
attribute_length := self nextU4. |
|
875 |
||
876 |
constantvalue_index := self nextU2. |
|
877 |
constantValue := constants at:constantvalue_index. |
|
878 |
||
59 | 879 |
aField constantValue:constantValue. |
880 |
||
61 | 881 |
Verbose ifTrue:[Transcript show:'constantValue: '; showCR:constantValue]. |
5 | 882 |
^ true |
883 |
||
884 |
" |
|
885 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
886 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
887 |
" |
|
888 |
||
889 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
890 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
1 | 891 |
! |
892 |
||
893 |
readFieldInfofield |
|
5 | 894 |
|access_flags name_index signature_index attributes_count field| |
1 | 895 |
|
896 |
access_flags := self nextU2. |
|
897 |
name_index := self nextU2. |
|
898 |
signature_index := self nextU2. |
|
5 | 899 |
|
900 |
field := JavaField new. |
|
901 |
field setAccessFlags:access_flags. |
|
902 |
field setName:(constants at:name_index). |
|
903 |
field setSignature:(constants at:signature_index). |
|
904 |
||
1 | 905 |
attributes_count := self nextU2. |
906 |
||
907 |
1 to:attributes_count do:[:i | |
|
5 | 908 |
self readAttributeFor:field. |
1 | 909 |
]. |
910 |
||
27 | 911 |
^ field |
912 |
||
1 | 913 |
" |
914 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
915 |
" |
|
916 |
||
917 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
918 |
"Created: 15.4.1996 / 15:38:43 / cg" |
|
919 |
! |
|
920 |
||
921 |
readFieldInfofields |
|
38 | 922 |
|nFields fields| |
1 | 923 |
|
924 |
"/ |
|
38 | 925 |
"/ get fieldInfos |
1 | 926 |
"/ |
27 | 927 |
nFields := self nextU2. |
61 | 928 |
Verbose ifTrue:[Transcript show:'fieldsCount = '; showCR:nFields]. |
1 | 929 |
|
27 | 930 |
fields := Array new:nFields. |
931 |
||
932 |
1 to:nFields do:[:i | |
|
61 | 933 |
Verbose ifTrue:[Transcript show:'field: '; showCR:i]. |
27 | 934 |
fields at:i put:(self readFieldInfofield) |
1 | 935 |
]. |
38 | 936 |
^ fields |
1 | 937 |
|
938 |
" |
|
939 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
940 |
" |
|
941 |
||
942 |
"Created: 15.4.1996 / 15:34:41 / cg" |
|
943 |
"Modified: 15.4.1996 / 15:35:28 / cg" |
|
5 | 944 |
! ! |
945 |
||
38 | 946 |
!JavaClassReader methodsFor:'file reading - interfaces'! |
947 |
||
948 |
readInterfaces |
|
949 |
|interfacesCount interface interfaces| |
|
950 |
||
951 |
"/ |
|
952 |
"/ get interfaces |
|
953 |
"/ |
|
954 |
interfacesCount := self nextU2. |
|
61 | 955 |
Verbose ifTrue:[Transcript show:'interfacesCount = '; showCR:interfacesCount]. |
38 | 956 |
|
957 |
interfaces := Array new:interfacesCount. |
|
958 |
||
959 |
1 to:interfacesCount do:[:i | |
|
61 | 960 |
Verbose ifTrue:[Transcript show:'interface: '; showCR:i]. |
38 | 961 |
interface = self nextU2. |
962 |
||
963 |
interfaces at:i put:interface. |
|
964 |
]. |
|
965 |
^ interfaces |
|
966 |
||
967 |
" |
|
968 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
969 |
" |
|
970 |
||
971 |
"Created: 15.4.1996 / 15:31:59 / cg" |
|
972 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
973 |
! ! |
|
974 |
||
5 | 975 |
!JavaClassReader methodsFor:'file reading - methods'! |
976 |
||
977 |
readCodeAttributeFor:aJavaMethod |
|
978 |
|attribute_length max_stack max_locals code_length code |
|
9 | 979 |
exception_table_length exception_table unknown1 unknown2| |
1 | 980 |
|
5 | 981 |
attribute_length := self nextU4. |
1 | 982 |
|
9 | 983 |
|
61 | 984 |
Verbose ifTrue:[Transcript show:'attribute_length: 0x'; showCR:(attribute_length printStringRadix:16)]. |
9 | 985 |
|
986 |
majorVsn > 2 ifTrue:[ |
|
39 | 987 |
unknown1 := self nextU1. |
988 |
max_stack := self nextU1. |
|
989 |
max_locals := self nextU2. |
|
9 | 990 |
unknown2 := self nextU2. |
61 | 991 |
Verbose ifTrue:[Transcript show:'?1: '; showCR:unknown1]. |
992 |
Verbose ifTrue:[Transcript show:'?2: '; showCR:unknown2]. |
|
39 | 993 |
] ifFalse:[ |
994 |
max_stack := self nextU1. |
|
995 |
max_locals := self nextU1. |
|
9 | 996 |
]. |
997 |
||
5 | 998 |
code_length := self nextU2. |
61 | 999 |
Verbose ifTrue:[Transcript show:'code_length: '; showCR:(code_length printStringRadix:16)]. |
1000 |
Verbose ifTrue:[Transcript show:'code at pos: '; showCR:inStream position]. |
|
38 | 1001 |
|
5 | 1002 |
code := ByteArray new:code_length. |
1003 |
inStream nextBytes:code_length into:code startingAt:1. |
|
1 | 1004 |
|
61 | 1005 |
Verbose ifTrue:[Transcript show:'method code:'; showCR:code.]. |
9 | 1006 |
|
5 | 1007 |
exception_table_length := self nextU2. |
61 | 1008 |
Verbose ifTrue:[Transcript show:'exception_table_length: '; showCR:(exception_table_length printStringRadix:16)]. |
5 | 1009 |
exception_table_length ~~ 0 ifTrue:[ |
61 | 1010 |
Verbose ifTrue:[Transcript show:'exceptionTable length:'; showCR:exception_table_length.]. |
9 | 1011 |
|
5 | 1012 |
exception_table := Array new:exception_table_length. |
1013 |
1 to:exception_table_length do:[:i | |
|
1014 |
|start_pc end_pc handler_pc catch_type| |
|
1 | 1015 |
|
5 | 1016 |
start_pc := self nextU2. |
1017 |
end_pc := self nextU2. |
|
1018 |
handler_pc := self nextU2. |
|
1019 |
catch_type := self nextU2. |
|
1020 |
exception_table at:i put:(JavaExceptionTableEntry |
|
1021 |
startPC:start_pc |
|
1022 |
endPC:end_pc |
|
1023 |
handlerPC:handler_pc |
|
1024 |
catchType:catch_type). |
|
1025 |
]. |
|
83 | 1026 |
aJavaMethod setExceptionHandlerTable:exception_table. |
1 | 1027 |
]. |
1028 |
||
29 | 1029 |
aJavaMethod |
1030 |
setCode:code |
|
1031 |
maxStack:max_stack |
|
1032 |
maxLocals:max_locals |
|
1033 |
u1:unknown1 |
|
1034 |
u2:unknown2. |
|
5 | 1035 |
|
1036 |
self readAttributesFor:aJavaMethod. |
|
1037 |
^ true |
|
1038 |
||
1 | 1039 |
" |
1040 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
5 | 1041 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
1 | 1042 |
" |
1043 |
||
1044 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
5 | 1045 |
"Created: 15.4.1996 / 15:40:17 / cg" |
1046 |
! |
|
1047 |
||
83 | 1048 |
readExceptionsAttributeFor:aJavaMethod |
1049 |
|attribute_length exception_table_length exception_table| |
|
1050 |
||
1051 |
attribute_length := self nextU4. |
|
1052 |
||
1053 |
exception_table_length := self nextU2. |
|
1054 |
exception_table_length ~~ 0 ifTrue:[ |
|
1055 |
exception_table := Array new:exception_table_length. |
|
1056 |
1 to:exception_table_length do:[:i | |
|
1057 |
|idx ex| |
|
1058 |
||
1059 |
idx := self nextU2. |
|
1060 |
ex := constants at:idx. |
|
1061 |
exception_table at:i put:ex. |
|
1062 |
]. |
|
1063 |
]. |
|
1064 |
||
1065 |
Verbose ifTrue:[Transcript showCR:'method has an exceptionTable']. |
|
1066 |
||
1067 |
aJavaMethod setExceptionTable:exception_table. |
|
1068 |
^ true |
|
1069 |
||
1070 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
1071 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
1072 |
! |
|
1073 |
||
5 | 1074 |
readLineNumberTableAttributeFor:aJavaMethod |
1075 |
|attribute_length line_number_table_length line_number_table| |
|
1076 |
||
1077 |
attribute_length := self nextU4. |
|
1078 |
||
1079 |
line_number_table_length := self nextU2. |
|
1080 |
line_number_table_length ~~ 0 ifTrue:[ |
|
1081 |
line_number_table := Array new:line_number_table_length. |
|
1082 |
1 to:line_number_table_length do:[:i | |
|
1083 |
|start_pc line_number| |
|
1084 |
||
1085 |
start_pc := self nextU2. |
|
1086 |
line_number := self nextU2. |
|
1087 |
line_number_table at:i put:(start_pc -> line_number). |
|
1088 |
]. |
|
1089 |
]. |
|
1090 |
||
61 | 1091 |
Verbose ifTrue:[Transcript showCR:'method has a lineNumberTable']. |
9 | 1092 |
|
5 | 1093 |
aJavaMethod setLineNumberTable:line_number_table. |
1094 |
^ true |
|
1095 |
||
1096 |
" |
|
1097 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
1098 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/java/lang/Boolean.class' |
|
1099 |
" |
|
1100 |
||
1101 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
1102 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
1 | 1103 |
! |
1104 |
||
50 | 1105 |
readLocalVariableTableAttributeFor:aJavaMethod |
1106 |
|attribute_length local_variable_table_length local_variable_table| |
|
1107 |
||
1108 |
attribute_length := self nextU4. |
|
1109 |
||
1110 |
local_variable_table_length := self nextU2. |
|
1111 |
local_variable_table_length ~~ 0 ifTrue:[ |
|
1112 |
local_variable_table := Array new:local_variable_table_length. |
|
1113 |
1 to:local_variable_table_length do:[:i | |
|
1114 |
|start_pc length name_index sig_index slot name signature| |
|
1115 |
||
1116 |
start_pc := self nextU2. |
|
1117 |
length := self nextU2. |
|
1118 |
name_index := self nextU2. |
|
86 | 1119 |
name := constants at:name_index. |
50 | 1120 |
sig_index := self nextU2. |
86 | 1121 |
signature := constants at:sig_index. |
50 | 1122 |
slot := self nextU2. |
1123 |
||
1124 |
local_variable_table at:i put:(JavaLocalVariableTableEntry new |
|
1125 |
startPC:start_pc |
|
1126 |
length:length |
|
1127 |
name:name |
|
1128 |
signature:signature |
|
1129 |
slot:slot) |
|
1130 |
]. |
|
1131 |
]. |
|
1132 |
||
61 | 1133 |
Verbose ifTrue:[Transcript showCR:'method has a localvariableTable']. |
50 | 1134 |
|
1135 |
aJavaMethod setLocalVariableTable:local_variable_table. |
|
1136 |
^ true |
|
1137 |
||
1138 |
" |
|
1139 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
1140 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/java/lang/Boolean.class' |
|
1141 |
" |
|
1142 |
||
1143 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
1144 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
1145 |
! |
|
1146 |
||
38 | 1147 |
readMethodFor:aJavaClass |
9 | 1148 |
|m access_flags name_index name signature_index signature| |
1 | 1149 |
|
1150 |
"/ |
|
1151 |
"/ get a method |
|
1152 |
"/ |
|
1153 |
access_flags := self nextU2. |
|
1154 |
name_index := self nextU2. |
|
1155 |
signature_index := self nextU2. |
|
1156 |
||
5 | 1157 |
name := constants at:name_index. |
1158 |
signature := constants at:signature_index. |
|
9 | 1159 |
|
61 | 1160 |
Verbose ifTrue:[Transcript show:'method name:'; showCR:name. |
1161 |
Transcript show:'signature:'; showCR:signature.]. |
|
9 | 1162 |
|
5 | 1163 |
m := JavaMethod new. |
1164 |
m setAccessFlags:access_flags. |
|
1165 |
m setSignature:signature. |
|
1166 |
m setName:name. |
|
38 | 1167 |
m setJavaClass:aJavaClass. |
5 | 1168 |
|
1169 |
self readAttributesFor:m. |
|
1170 |
||
38 | 1171 |
aJavaClass addMethod:m name:name signature:signature. |
1 | 1172 |
|
1173 |
" |
|
1174 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
1175 |
" |
|
1176 |
||
1177 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
1178 |
"Created: 15.4.1996 / 16:48:49 / cg" |
|
1179 |
! |
|
1180 |
||
38 | 1181 |
readMethodsFor:aJavaClass |
1 | 1182 |
|methodsCount method| |
1183 |
||
1184 |
||
1185 |
"/ |
|
1186 |
"/ get methods |
|
1187 |
"/ |
|
1188 |
methodsCount := self nextU2. |
|
61 | 1189 |
Verbose ifTrue:[Transcript show:'methodsCount = '; showCR:methodsCount]. |
1 | 1190 |
|
1191 |
1 to:methodsCount do:[:i | |
|
61 | 1192 |
Verbose ifTrue:[Transcript show:'method: '; showCR:i]. |
38 | 1193 |
method := self readMethodFor:aJavaClass |
1 | 1194 |
]. |
1195 |
||
1196 |
" |
|
1197 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
1198 |
" |
|
1199 |
||
1200 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
1201 |
"Created: 15.4.1996 / 16:46:30 / cg" |
|
1202 |
! ! |
|
1203 |
||
1204 |
!JavaClassReader methodsFor:'low level reading'! |
|
1205 |
||
60 | 1206 |
nextS4 |
1207 |
^ inStream nextLongMSB:msb |
|
1208 |
||
1209 |
"Created: 15.4.1996 / 15:04:28 / cg" |
|
1210 |
! |
|
1211 |
||
1 | 1212 |
nextU1 |
1213 |
^ inStream nextByte |
|
1214 |
||
1215 |
"Created: 15.4.1996 / 15:15:43 / cg" |
|
1216 |
! |
|
1217 |
||
1218 |
nextU2 |
|
1219 |
^ inStream nextUnsignedShortMSB:msb |
|
1220 |
||
1221 |
"Created: 15.4.1996 / 15:12:25 / cg" |
|
1222 |
! |
|
1223 |
||
1224 |
nextU4 |
|
1225 |
^ inStream nextUnsignedLongMSB:msb |
|
1226 |
||
1227 |
"Created: 15.4.1996 / 15:04:28 / cg" |
|
1228 |
! ! |
|
1229 |
||
62 | 1230 |
!JavaClassReader class methodsFor:'documentation'! |
1 | 1231 |
|
1232 |
version |
|
86 | 1233 |
^ '$Header: /home/jv/Projects/SmalltalkX/repositories/cvs/stx/libjava/JavaClassReader.st,v 1.28 1996/06/27 16:31:19 cg Exp $' |
1 | 1234 |
! ! |
1235 |
JavaClassReader initialize! |