author | cg |
Tue, 02 Jul 1996 12:20:58 +0000 | |
changeset 104 | 1ea88759a0e1 |
parent 99 | d1248315f589 |
child 110 | dfb03e2ea321 |
permissions | -rw-r--r-- |
1 | 1 |
Object subclass:#JavaClassReader |
91 | 2 |
instanceVariableNames:'inStream msb constants majorVsn minorVsn constNeeds2Slots |
38 | 3 |
constSlot' |
91 | 4 |
classVariableNames:'Verbose ClassPath Silent AbsolutelySilent LazyClassLoading' |
1 | 5 |
poolDictionaries:'' |
6 |
category:'Java-Support' |
|
7 |
! |
|
8 |
||
9 |
||
62 | 10 |
!JavaClassReader class methodsFor:'initialization'! |
1 | 11 |
|
12 |
initialize |
|
91 | 13 |
Verbose := false. |
14 |
Silent := true. |
|
15 |
AbsolutelySilent := false. |
|
16 |
||
17 |
self initializeClassPath. |
|
18 |
LazyClassLoading := false. "/ true. |
|
29 | 19 |
|
20 |
" |
|
21 |
JavaClassReader initialize |
|
22 |
" |
|
23 |
! |
|
24 |
||
25 |
initializeClassPath |
|
97 | 26 |
"/ self initializeClassPath:#('/home/cg/java/'). |
27 |
self initializeClassPath:#( |
|
28 |
'/home/cg/java/JDK/classes/' |
|
83 | 29 |
'/home/cg/java/JWS/classes/' |
97 | 30 |
'/home/cg/java/' |
31 |
||
32 |
'/phys/idefix/home/cg/java/JDK/classes/' |
|
33 |
'/phys/idefix/home/cg/java/JWS/classes/' |
|
34 |
'/phys/idefix/home/cg/java/' |
|
35 |
). |
|
71 | 36 |
|
37 |
"/ self initializeClassPath:#( |
|
38 |
"/ '/phys/ibm3/java/lib/' |
|
39 |
"/ '/phys/ibm3/hotjava/classes/' |
|
40 |
"/ ) |
|
29 | 41 |
|
42 |
" |
|
43 |
JavaClassReader initializeClassPath |
|
44 |
" |
|
62 | 45 |
! |
46 |
||
47 |
initializeClassPath:aCollectionOfDirectoryPathNames |
|
48 |
ClassPath := aCollectionOfDirectoryPathNames |
|
49 |
||
50 |
" |
|
51 |
JavaClassReader initializeClassPath:#( |
|
52 |
'/home/cg/java/' |
|
53 |
) |
|
54 |
" |
|
1 | 55 |
! ! |
56 |
||
62 | 57 |
!JavaClassReader class methodsFor:'debugging'! |
1 | 58 |
|
59 |
verbose:aBoolean |
|
60 |
Verbose := aBoolean |
|
61 |
||
62 |
" |
|
67 | 63 |
Java flushClasses. |
1 | 64 |
JavaClassReader verbose:true |
65 |
JavaClassReader verbose:false |
|
66 |
" |
|
67 |
! ! |
|
68 |
||
62 | 69 |
!JavaClassReader class methodsFor:'file reading'! |
1 | 70 |
|
21 | 71 |
loadClass:aClassName |
43 | 72 |
"reads a class, installs and returns it. |
73 |
The classes string constants are resolved & <clinit> is called, |
|
74 |
if it implements it." |
|
21 | 75 |
|
76 |
|rslt| |
|
77 |
||
54 | 78 |
rslt := self loadClassLazy:aClassName ignoring:Set new. |
91 | 79 |
rslt notNil ifTrue:[self postLoadActions]. |
40 | 80 |
|
38 | 81 |
^ rslt |
21 | 82 |
|
83 |
" |
|
84 |
JavaClassReader loadClass:'awt/Component' |
|
85 |
JavaClassReader loadClass:'awt/Button' |
|
86 |
JavaClassReader loadClass:'browser/AddButton' |
|
87 |
||
88 |
JavaClassReader loadClass:'java/lang/Object' |
|
89 |
JavaClassReader loadClass:'java/lang/AbstractMethodError' |
|
90 |
JavaClassReader loadClass:'java/lang/Thread' |
|
91 |
" |
|
92 |
||
93 |
"Created: 15.4.1996 / 14:58:53 / cg" |
|
94 |
! |
|
95 |
||
54 | 96 |
loadClassLazy:aClassName ignoring:classesBeingLoaded |
38 | 97 |
"private helper: |
98 |
reads a class, installs and returns it. |
|
99 |
The class is searched along the ClassPath. |
|
43 | 100 |
|
101 |
This is a partial load (to load other classes): |
|
102 |
- The classes stringConstants are not fixed to be JavaStrings |
|
103 |
(i.e they are still ST-Strings). |
|
104 |
- The class is not initialized." |
|
38 | 105 |
|
91 | 106 |
|rslt clsName cls loadedClass| |
50 | 107 |
|
52 | 108 |
(aClassName endsWith:';') ifTrue:[ |
109 |
('oops - loading of ' , aClassName , ' attempted') printNL. |
|
91 | 110 |
self halt:'should not happen'. |
111 |
^ nil |
|
112 |
]. |
|
113 |
(aClassName endsWith:'[]') ifTrue:[ |
|
114 |
('oops - loading of ' , aClassName , ' attempted') printNL. |
|
115 |
self halt:'should not happen'. |
|
52 | 116 |
^ nil |
117 |
]. |
|
118 |
||
50 | 119 |
clsName := aClassName. |
120 |
(clsName includes:$.) ifTrue:[ |
|
121 |
clsName := clsName copy replaceAll:$. by:$/ |
|
122 |
]. |
|
38 | 123 |
|
91 | 124 |
(classesBeingLoaded notNil and:[classesBeingLoaded includes:clsName]) ifTrue:[ |
54 | 125 |
('oops - recursive load of ' , clsName , ' attempted') printNL. |
91 | 126 |
self halt:'should not happen'. |
54 | 127 |
^ JavaUnresolvedClassConstant fullName:clsName |
128 |
]. |
|
129 |
||
91 | 130 |
(cls := Java at:clsName) notNil ifTrue:[ |
131 |
('oops - ' , clsName , ' is already loaded') printNL. |
|
132 |
self halt:'should not happen'. |
|
133 |
^ cls |
|
134 |
]. |
|
135 |
||
136 |
classesBeingLoaded isNil ifTrue:[ |
|
137 |
loadedClass := Set with:clsName |
|
138 |
] ifFalse:[ |
|
139 |
loadedClass := Set withAll:classesBeingLoaded. |
|
140 |
loadedClass add:clsName. |
|
141 |
]. |
|
54 | 142 |
|
38 | 143 |
ClassPath do:[:path | |
91 | 144 |
|nm| |
145 |
||
146 |
(nm := path , clsName , '.class') asFilename exists ifTrue:[ |
|
147 |
rslt := self loadFileLazy:nm |
|
148 |
ignoring:loadedClass. |
|
149 |
rslt notNil ifTrue:[ |
|
150 |
^ rslt |
|
151 |
]. |
|
152 |
] |
|
38 | 153 |
]. |
154 |
||
91 | 155 |
('JAVA: no file found for: ' , clsName) infoPrintCR. |
156 |
^ nil |
|
38 | 157 |
! |
158 |
||
7 | 159 |
loadFile:aFilename |
43 | 160 |
"reads a class from aFilename, installs and returns it. |
161 |
The classes strings are fixed and its class-init function is called." |
|
162 |
||
54 | 163 |
self loadFileLazy:aFilename ignoring:(Set new). |
43 | 164 |
self postLoadActions |
165 |
! |
|
166 |
||
54 | 167 |
loadFileLazy:aFilename ignoring:classesBeingLoaded |
43 | 168 |
"reads a class from aFilename, installs and returns it. |
91 | 169 |
Strings are fixed and classrefs are fixed, |
170 |
but NO no class-init functions are called." |
|
7 | 171 |
|
21 | 172 |
|javaClass pool| |
7 | 173 |
|
54 | 174 |
javaClass := self readFile:aFilename ignoring:classesBeingLoaded. |
7 | 175 |
javaClass notNil ifTrue:[ |
32 | 176 |
Java at:(javaClass fullName asSymbol) put:javaClass. |
21 | 177 |
|
54 | 178 |
classesBeingLoaded remove:javaClass fullName ifAbsent:nil. |
21 | 179 |
|
91 | 180 |
JavaUnresolvedConstant resolveFor:javaClass. |
7 | 181 |
]. |
9 | 182 |
^ javaClass |
7 | 183 |
|
184 |
" |
|
185 |
JavaClassReader loadFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
9 | 186 |
|
187 |
'/phys/ibm3/java/lib/java/lang' asFilename |
|
188 |
directoryContents do:[:nm | |
|
189 |
(nm endsWith:'.class') ifTrue:[ |
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c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
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190 |
('/phys/ibm3/java/lib/java/lang/' , nm) printNL. |
9 | 191 |
JavaClassReader loadFile:'/phys/ibm3/java/lib/java/lang/' , nm |
192 |
] |
|
21 | 193 |
]. |
9 | 194 |
|
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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 | 201 |
]. |
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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 | 209 |
]. |
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210 |
|
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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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|
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('/phys/ibm3/java/lib/java/util/' , nm) printNL. |
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|
215 |
JavaClassReader loadFile:'/phys/ibm3/java/lib/java/util/' , nm |
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216 |
] |
21 | 217 |
]. |
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218 |
|
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'/phys/ibm3/java/lib/java/awt' asFilename |
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directoryContents do:[:nm | |
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|
221 |
(nm endsWith:'.class') ifTrue:[ |
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can now load all java.class files (see JavaClassReader>>loadFile:)
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parents:
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diff
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|
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('/phys/ibm3/java/lib/java/awt/' , nm) printNL. |
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can now load all java.class files (see JavaClassReader>>loadFile:)
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JavaClassReader loadFile:'/phys/ibm3/java/lib/java/awt/' , nm |
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can now load all java.class files (see JavaClassReader>>loadFile:)
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parents:
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224 |
] |
21 | 225 |
]. |
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can now load all java.class files (see JavaClassReader>>loadFile:)
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parents:
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226 |
|
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'/phys/ibm3/java/lib/java/applet' asFilename |
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can now load all java.class files (see JavaClassReader>>loadFile:)
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directoryContents do:[:nm | |
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can now load all java.class files (see JavaClassReader>>loadFile:)
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|
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(nm endsWith:'.class') ifTrue:[ |
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can now load all java.class files (see JavaClassReader>>loadFile:)
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parents:
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|
230 |
('/phys/ibm3/java/lib/java/applet/' , nm) printNL. |
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|
231 |
JavaClassReader loadFile:'/phys/ibm3/java/lib/java/applet/' , nm |
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can now load all java.class files (see JavaClassReader>>loadFile:)
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parents:
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|
232 |
] |
21 | 233 |
]. |
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|
234 |
|
9 | 235 |
JavaClassReader loadFile:'/phys/ibm3/java/lib/java/lang/AbstractMethodError.class' |
14
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parents:
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|
236 |
JavaClassReader loadFile:'/phys/ibm3/java/lib/java/lang/Thread.class' |
7 | 237 |
" |
238 |
||
239 |
"Created: 15.4.1996 / 14:58:53 / cg" |
|
240 |
! |
|
241 |
||
43 | 242 |
postLoadActions |
243 |
"Resolve all classes' string constants. |
|
244 |
Perform all class initialization functions (of those which are not |
|
245 |
yet initialized)." |
|
246 |
||
91 | 247 |
|classes prevUnresolved newUnresolved| |
43 | 248 |
|
91 | 249 |
"/ need at least java.lang.String, for valid constants |
250 |
Java javaString isNil ifTrue:[ |
|
251 |
self loadClassLazy:'java.lang.String' ignoring:Set new. |
|
54 | 252 |
]. |
253 |
||
91 | 254 |
LazyClassLoading ifFalse:[ |
255 |
prevUnresolved := nil. |
|
256 |
newUnresolved := JavaUnresolvedConstant unresolvedClassNames asArray. |
|
257 |
[prevUnresolved ~= newUnresolved] whileTrue:[ |
|
258 |
newUnresolved do:[:nextUnresolved | |
|
259 |
(Java at:nextUnresolved) isNil ifTrue:[ "/ could have been loaded in the meantime |
|
260 |
Silent ifFalse:[ |
|
261 |
'loading unresolved: ' print. nextUnresolved printCR. |
|
262 |
]. |
|
263 |
||
264 |
self |
|
265 |
loadClassLazy:nextUnresolved |
|
266 |
ignoring:Set new. |
|
267 |
] |
|
268 |
]. |
|
269 |
prevUnresolved := newUnresolved. |
|
270 |
newUnresolved := JavaUnresolvedConstant unresolvedClassNames asArray. |
|
271 |
]. |
|
272 |
||
273 |
newUnresolved size == 0 ifTrue:[ |
|
274 |
"/ nothing unresolved |
|
275 |
||
276 |
(classes := Java allClasses) notNil ifTrue:[ |
|
277 |
"/ init all new classes |
|
278 |
"/ fetch again - there could be new ones ... |
|
279 |
||
280 |
classes := Java allClasses. |
|
281 |
classes do:[:aJavaClass | |
|
282 |
aJavaClass isInitialized ifFalse:[ |
|
283 |
Silent ifFalse:[ |
|
284 |
'performing class initialization of ' print. aJavaClass fullName printCR. |
|
285 |
]. |
|
286 |
aJavaClass classInit |
|
287 |
] |
|
288 |
] |
|
289 |
] |
|
290 |
]. |
|
43 | 291 |
] |
292 |
! |
|
293 |
||
54 | 294 |
readFile:aFilename ignoring:classesBeingLoaded |
7 | 295 |
"reads a class from aFilename and returns it. |
91 | 296 |
The JavaClass is NOT installed as global and unresolved |
297 |
refs are NOT patched." |
|
7 | 298 |
|
73 | 299 |
|inStream javaClass| |
1 | 300 |
|
43 | 301 |
Silent ifFalse:[ |
302 |
'reading ' print. aFilename print. ' ...' printNL. |
|
303 |
]. |
|
21 | 304 |
|
1 | 305 |
inStream := aFilename asFilename readStream. |
91 | 306 |
inStream isNil ifTrue:[ |
307 |
('no file: ' , aFilename) printCR. |
|
308 |
self halt. |
|
309 |
^ nil |
|
310 |
]. |
|
311 |
||
312 |
javaClass := self new readStream:inStream ignoring:classesBeingLoaded. |
|
73 | 313 |
javaClass notNil ifTrue:[ |
314 |
javaClass setBinaryFilePath:(inStream pathName). |
|
315 |
]. |
|
1 | 316 |
inStream close. |
27 | 317 |
|
91 | 318 |
AbsolutelySilent ifFalse:[ |
73 | 319 |
' ... loaded ' print. javaClass displayString printNL. |
43 | 320 |
]. |
27 | 321 |
|
73 | 322 |
^ javaClass |
1 | 323 |
|
324 |
"Created: 15.4.1996 / 14:58:53 / cg" |
|
325 |
! |
|
326 |
||
54 | 327 |
readStream:aStream ignoring:classesBeingLoaded |
7 | 328 |
"reads a class from aStream and returns it. |
329 |
The JavaClass is not installed as global" |
|
330 |
||
54 | 331 |
^ self new readStream:aStream ignoring:classesBeingLoaded |
1 | 332 |
|
333 |
" |
|
334 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
335 |
" |
|
336 |
||
337 |
"Modified: 15.4.1996 / 15:01:30 / cg" |
|
338 |
! ! |
|
339 |
||
340 |
!JavaClassReader methodsFor:'file reading'! |
|
341 |
||
54 | 342 |
readClassFileIgnoring:classesbeingLoaded |
7 | 343 |
"reads a class from inStream and returns it. |
38 | 344 |
The JavaClass is not installed as global and its constants |
345 |
(especially strings) may not be fully resolved." |
|
7 | 346 |
|
9 | 347 |
|magic |
38 | 348 |
access_flags this_class this_class_index super_class super_class_index |
349 |
realSuperClass this_class_ref existingSuperClass |
|
40 | 350 |
fields interfaces staticFields nStatic| |
1 | 351 |
|
352 |
"/ |
|
353 |
"/ read magic, determine byte order |
|
354 |
"/ |
|
355 |
msb := true. |
|
356 |
magic := self nextU4. |
|
357 |
magic = 16rCAFEBABE ifFalse:[ |
|
358 |
magic = 16rBEBAFECA ifFalse:[ |
|
359 |
self error:'not a java class file'. |
|
360 |
^ nil |
|
361 |
]. |
|
362 |
msb := false. |
|
61 | 363 |
Verbose ifTrue:[Transcript showCR:'file is lsb']. |
1 | 364 |
] ifTrue:[ |
61 | 365 |
Verbose ifTrue:[Transcript showCR:'file is msb']. |
1 | 366 |
]. |
367 |
||
368 |
"/ |
|
369 |
"/ get version |
|
370 |
"/ |
|
91 | 371 |
minorVsn := self nextU2. |
372 |
majorVsn := self nextU2. |
|
9 | 373 |
|
99 | 374 |
(majorVsn ~~ 45 or:[minorVsn ~~ 3]) ifTrue:[ |
375 |
Transcript show:'warning this file has version '; show:majorVsn; show:'.'; showCR:minorVsn. |
|
376 |
]. |
|
377 |
||
378 |
Verbose ifTrue:[ |
|
379 |
Transcript show:'version = '; |
|
380 |
show:(majorVsn printString); |
|
381 |
show:'.'; |
|
382 |
showCR:(minorVsn printString). |
|
383 |
]. |
|
1 | 384 |
|
385 |
"/ |
|
386 |
"/ get constant pool |
|
387 |
"/ |
|
388 |
self readConstantPool. |
|
389 |
||
390 |
"/ |
|
391 |
"/ access flags |
|
392 |
"/ |
|
393 |
access_flags := self nextU2. |
|
394 |
this_class_index := self nextU2. |
|
395 |
super_class_index := self nextU2. |
|
396 |
||
14
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
397 |
super_class_index == 0 ifTrue:[ |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
398 |
super_class := nil |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
399 |
] ifFalse:[ |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
400 |
super_class := constants at:super_class_index. |
32 | 401 |
existingSuperClass := Java classNamed:super_class fullName. |
21 | 402 |
existingSuperClass notNil ifTrue:[ |
403 |
super_class := existingSuperClass |
|
54 | 404 |
] ifFalse:[ |
405 |
(super_class isMemberOf:JavaUnresolvedClassConstant) ifTrue:[ |
|
91 | 406 |
|
407 |
||
408 |
Silent ifFalse:[ |
|
409 |
'load superClass: ' print. super_class fullName printCR. |
|
54 | 410 |
]. |
91 | 411 |
|
412 |
existingSuperClass := self class |
|
413 |
loadClassLazy:(super_class fullName) |
|
414 |
ignoring:classesbeingLoaded. |
|
415 |
||
72 | 416 |
existingSuperClass isNil ifTrue:[ |
54 | 417 |
self halt:('cannot find superclass: ' , super_class fullName). |
72 | 418 |
]. |
419 |
super_class := existingSuperClass |
|
91 | 420 |
] ifFalse:[ |
421 |
self halt:'oops - superclass ?' |
|
422 |
] |
|
29 | 423 |
]. |
14
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
424 |
]. |
1 | 425 |
|
426 |
"/ |
|
427 |
"/ get interfaces |
|
428 |
"/ |
|
38 | 429 |
interfaces := self readInterfaces. |
1 | 430 |
|
431 |
"/ |
|
432 |
"/ get fields |
|
433 |
"/ |
|
38 | 434 |
fields := self readFieldInfofields. |
40 | 435 |
|
436 |
"/ |
|
437 |
"/ create the fields as instVars |
|
438 |
"/ static fields are created as class-InstVars |
|
439 |
"/ |
|
440 |
staticFields := fields select:[:f | f isStatic]. |
|
441 |
nStatic := staticFields size. |
|
442 |
||
443 |
this_class_ref := constants at:this_class_index. |
|
444 |
nStatic ~~ 0 ifTrue:[ |
|
445 |
fields := fields select:[:f | f isStatic not]. |
|
446 |
||
447 |
this_class := JavaClass fullName:(this_class_ref fullName) numStatic:nStatic. |
|
91 | 448 |
|
40 | 449 |
JavaClass setInstanceVariableStringFromFields:staticFields in:this_class class. |
59 | 450 |
this_class setStaticFields:staticFields. |
60 | 451 |
this_class initializeStaticFields. |
40 | 452 |
] ifFalse:[ |
91 | 453 |
this_class := JavaClass fullName:(this_class_ref fullName) numStatic:0. |
40 | 454 |
]. |
455 |
||
456 |
this_class setAccessFlags:access_flags. |
|
457 |
this_class setSuperclass:super_class. |
|
458 |
this_class setConstantPool:constants. |
|
459 |
||
52 | 460 |
this_class setFields:fields. |
1 | 461 |
|
462 |
"/ |
|
463 |
"/ get methods |
|
464 |
"/ |
|
38 | 465 |
self readMethodsFor:this_class. |
1 | 466 |
|
5 | 467 |
self readAttributesFor:this_class. |
468 |
||
91 | 469 |
constants owner:this_class. |
470 |
||
5 | 471 |
^ this_class |
472 |
||
1 | 473 |
" |
474 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
475 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
9 | 476 |
|
477 |
JavaClassReader verbose:true. |
|
478 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/java/lang/ArithmeticException.class' |
|
479 |
JavaClassReader readFile:'/phys/ibm3/java/lib/java/lang/ArithmeticException.class' |
|
1 | 480 |
" |
481 |
||
482 |
"Created: 15.4.1996 / 15:02:47 / cg" |
|
483 |
"Modified: 15.4.1996 / 16:51:48 / cg" |
|
484 |
! |
|
485 |
||
5 | 486 |
readSourceFileAttributeFor:aJavaClass |
487 |
|attribute_length sourceFile_index sourceFile| |
|
488 |
||
489 |
attribute_length := self nextU4. |
|
490 |
||
491 |
sourceFile_index := self nextU2. |
|
492 |
sourceFile := constants at:sourceFile_index. |
|
493 |
||
494 |
aJavaClass setSourceFile:sourceFile. |
|
495 |
||
61 | 496 |
Verbose ifTrue:[Transcript show:'sourceFile: '; showCR:sourceFile]. |
5 | 497 |
^ true |
498 |
||
499 |
" |
|
500 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
501 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
502 |
" |
|
503 |
||
504 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
505 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
506 |
! |
|
507 |
||
54 | 508 |
readStream:aStream ignoring:classesBeingLoaded |
7 | 509 |
"reads a class from aStream and returns it. |
510 |
The JavaClass is not installed as global" |
|
511 |
||
5 | 512 |
inStream := aStream. |
513 |
inStream binary. |
|
38 | 514 |
|
54 | 515 |
^ self readClassFileIgnoring:classesBeingLoaded |
5 | 516 |
|
517 |
" |
|
518 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
519 |
" |
|
520 |
||
521 |
"Created: 15.4.1996 / 15:00:55 / cg" |
|
522 |
"Modified: 15.4.1996 / 15:06:18 / cg" |
|
523 |
! ! |
|
524 |
||
525 |
!JavaClassReader methodsFor:'file reading - attributes'! |
|
526 |
||
527 |
readAttribute:attributeName for:something |
|
83 | 528 |
|
5 | 529 |
(attributeName = 'Code') ifTrue:[ |
530 |
self readCodeAttributeFor:something. |
|
531 |
^ true. |
|
532 |
]. |
|
83 | 533 |
(attributeName = 'Exceptions') ifTrue:[ |
534 |
self readExceptionsAttributeFor:something. |
|
535 |
^ true. |
|
536 |
]. |
|
5 | 537 |
(attributeName = 'LineNumberTable') ifTrue:[ |
538 |
self readLineNumberTableAttributeFor:something. |
|
539 |
^ true. |
|
540 |
]. |
|
541 |
(attributeName = 'LocalVariableTable') ifTrue:[ |
|
542 |
self readLocalVariableTableAttributeFor:something. |
|
543 |
^ true. |
|
544 |
]. |
|
545 |
(attributeName = 'ConstantValue') ifTrue:[ |
|
546 |
self readConstantValueAttributeFor:something. |
|
547 |
^ true. |
|
548 |
]. |
|
549 |
(attributeName = 'SourceFile') ifTrue:[ |
|
550 |
self readSourceFileAttributeFor:something. |
|
551 |
^ true. |
|
552 |
]. |
|
83 | 553 |
|
554 |
('JAVA: unrecognized attribute: ' , attributeName) infoPrintCR. |
|
5 | 555 |
^ false |
556 |
||
557 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
558 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
559 |
! |
|
560 |
||
561 |
readAttributeFor:something |
|
562 |
|attribute_name_index attribute_name attribute_length attribute_info| |
|
563 |
||
61 | 564 |
Verbose ifTrue:[Transcript show:'attrib at pos: '; showCR:inStream position]. |
9 | 565 |
|
5 | 566 |
attribute_name_index := self nextU2. |
9 | 567 |
|
568 |
"/ |
|
569 |
"/ UNDOC feature ? |
|
570 |
"/ |
|
571 |
attribute_name_index > constants size ifTrue:[ |
|
572 |
attribute_name_index == 16rb700 ifTrue:[ |
|
573 |
self halt. |
|
574 |
] |
|
575 |
]. |
|
576 |
||
5 | 577 |
attribute_name := constants at:attribute_name_index. |
9 | 578 |
|
61 | 579 |
Verbose ifTrue:[Transcript show:'attrib name: '; showCR:attribute_name]. |
9 | 580 |
|
5 | 581 |
(self readAttribute:attribute_name for:something) ifFalse:[ |
582 |
attribute_length := self nextU4. |
|
583 |
attribute_info := ByteArray new:(attribute_length). |
|
584 |
inStream nextBytes:attribute_length into:attribute_info startingAt:1. |
|
585 |
||
61 | 586 |
Verbose ifTrue:[Transcript show:'skipped '; show:attribute_name; showCR:'-attribute']. |
5 | 587 |
]. |
588 |
||
589 |
" |
|
590 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
591 |
" |
|
592 |
||
593 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
594 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
595 |
! |
|
596 |
||
597 |
readAttributesFor:something |
|
598 |
|attributes_count| |
|
599 |
||
600 |
attributes_count := self nextU2. |
|
601 |
||
602 |
1 to:attributes_count do:[:i | |
|
603 |
self readAttributeFor:something. |
|
604 |
]. |
|
605 |
||
606 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
607 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
608 |
! ! |
|
609 |
||
610 |
!JavaClassReader methodsFor:'file reading - constants'! |
|
611 |
||
1 | 612 |
readConstant |
613 |
|tag constReader const| |
|
614 |
||
615 |
||
11 | 616 |
constNeeds2Slots := false. |
617 |
||
1 | 618 |
"/ |
619 |
"/ get tag |
|
620 |
"/ |
|
621 |
tag := self nextU1. |
|
61 | 622 |
Verbose ifTrue:[Transcript show:'tag = '; showCR:tag]. |
1 | 623 |
|
624 |
constReader := #( |
|
91 | 625 |
readConstant_Asciz "/ 1 - now called Utf8 |
626 |
readConstant_Unicode "/ 2 |
|
1 | 627 |
readConstant_Integer "/ 3 |
628 |
readConstant_Float "/ 4 |
|
629 |
readConstant_Long "/ 5 |
|
630 |
readConstant_Double "/ 6 |
|
631 |
readConstant_Class "/ 7 |
|
632 |
readConstant_String "/ 8 |
|
633 |
readConstant_Fieldref "/ 9 |
|
634 |
readConstant_Methodref "/ 10 |
|
635 |
readConstant_InterfaceMethodref "/ 11 |
|
91 | 636 |
readConstant_NameAndType "/ 12 |
1 | 637 |
) at:tag ifAbsent:[#readConstant_Undef]. |
638 |
||
639 |
^ self perform:constReader. |
|
640 |
||
641 |
" |
|
642 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
643 |
" |
|
644 |
||
645 |
"Created: 15.4.1996 / 15:46:32 / cg" |
|
646 |
"Modified: 15.4.1996 / 15:47:00 / cg" |
|
647 |
! |
|
648 |
||
649 |
readConstantPool |
|
11 | 650 |
|constantPoolCount const i| |
1 | 651 |
|
652 |
"/ |
|
653 |
"/ get constant pool |
|
654 |
"/ |
|
655 |
constantPoolCount := self nextU2. |
|
61 | 656 |
Verbose ifTrue:[Transcript show:'constantPoolCount = '; showCR:constantPoolCount]. |
1 | 657 |
|
91 | 658 |
constants := JavaConstantPool "Array" new:constantPoolCount-1. |
1 | 659 |
|
21 | 660 |
constSlot := 1. |
661 |
[constSlot < constantPoolCount] whileTrue:[ |
|
61 | 662 |
Verbose ifTrue:[Transcript show:'const: '; showCR:constSlot]. |
1 | 663 |
const := self readConstant. |
21 | 664 |
constants at:constSlot put:const. |
11 | 665 |
constNeeds2Slots ifTrue:[ |
21 | 666 |
constSlot := constSlot + 1. |
11 | 667 |
]. |
21 | 668 |
constSlot := constSlot + 1. |
1 | 669 |
]. |
670 |
||
52 | 671 |
constSlot := -1. |
672 |
||
91 | 673 |
"/ preresolve what can be (especially, strings are resolved here) |
674 |
||
1 | 675 |
1 to:constantPoolCount-1 do:[:i | |
67 | 676 |
|const value| |
1 | 677 |
|
678 |
const := constants at:i. |
|
38 | 679 |
const notNil ifTrue:[ "/ kludge for 2-slot constants (which only take 1 slot in ST/X) |
91 | 680 |
(const isKindOf:JavaUnresolvedConstant) ifTrue:[ |
681 |
value := const preResolve. |
|
682 |
value ~~ const ifTrue:[ |
|
683 |
constants at:i put:value. |
|
684 |
] |
|
685 |
] |
|
11 | 686 |
] |
1 | 687 |
]. |
688 |
||
689 |
" |
|
690 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
691 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
692 |
" |
|
693 |
||
694 |
"Created: 15.4.1996 / 15:14:11 / cg" |
|
695 |
"Modified: 15.4.1996 / 16:41:57 / cg" |
|
696 |
! |
|
697 |
||
698 |
readConstant_Asciz |
|
699 |
|len string| |
|
700 |
||
701 |
len := self nextU2. |
|
702 |
string := String new:len. |
|
703 |
inStream nextBytes:len into:string startingAt:1. |
|
704 |
||
61 | 705 |
Verbose ifTrue:[Transcript show:'asciz; string= '; showCR:string]. |
1 | 706 |
|
707 |
^ string |
|
708 |
||
709 |
" |
|
710 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
711 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
712 |
" |
|
713 |
||
714 |
"Created: 15.4.1996 / 15:15:35 / cg" |
|
715 |
"Modified: 15.4.1996 / 16:33:45 / cg" |
|
716 |
! |
|
717 |
||
718 |
readConstant_Class |
|
52 | 719 |
|name_index name| |
1 | 720 |
|
721 |
name_index := self nextU2. |
|
722 |
||
61 | 723 |
Verbose ifTrue:[Transcript show:'class; index= '; showCR:name_index]. |
1 | 724 |
|
52 | 725 |
name := constants at:name_index. |
726 |
name notNil ifTrue:[ |
|
727 |
self halt |
|
728 |
]. |
|
729 |
||
21 | 730 |
^ JavaUnresolvedClassConstant |
91 | 731 |
pool:constants |
732 |
poolIndex:constSlot |
|
21 | 733 |
nameIndex:name_index |
91 | 734 |
|
1 | 735 |
" |
736 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
737 |
" |
|
738 |
||
739 |
"Created: 15.4.1996 / 15:21:13 / cg" |
|
740 |
"Modified: 15.4.1996 / 15:49:32 / cg" |
|
741 |
! |
|
742 |
||
11 | 743 |
readConstant_Double |
744 |
|high low aFloat| |
|
745 |
||
746 |
high := self nextU4. |
|
747 |
low := self nextU4. |
|
748 |
||
749 |
aFloat := Float new. |
|
750 |
UninterpretedBytes isBigEndian ifTrue:[ |
|
751 |
aFloat basicAt:1 put:((high bitShift:-24) bitAnd:16rFF). |
|
752 |
aFloat basicAt:2 put:((high bitShift:-16) bitAnd:16rFF). |
|
753 |
aFloat basicAt:3 put:((high bitShift:-8) bitAnd:16rFF). |
|
754 |
aFloat basicAt:4 put:(high bitAnd:16rFF). |
|
755 |
aFloat basicAt:5 put:((low bitShift:-24) bitAnd:16rFF). |
|
756 |
aFloat basicAt:6 put:((low bitShift:-16) bitAnd:16rFF). |
|
757 |
aFloat basicAt:7 put:((low bitShift:-8) bitAnd:16rFF). |
|
758 |
aFloat basicAt:8 put:(low bitAnd:16rFF). |
|
759 |
] ifFalse:[ |
|
760 |
aFloat basicAt:1 put:(low bitAnd:16rFF). |
|
761 |
aFloat basicAt:2 put:((low bitShift:-8) bitAnd:16rFF). |
|
762 |
aFloat basicAt:3 put:((low bitShift:-16) bitAnd:16rFF). |
|
763 |
aFloat basicAt:4 put:((low bitShift:-24) bitAnd:16rFF). |
|
764 |
aFloat basicAt:5 put:(high bitAnd:16rFF). |
|
765 |
aFloat basicAt:6 put:((high bitShift:-8) bitAnd:16rFF). |
|
766 |
aFloat basicAt:7 put:((high bitShift:-16) bitAnd:16rFF). |
|
767 |
aFloat basicAt:8 put:((high bitShift:-24) bitAnd:16rFF). |
|
768 |
]. |
|
769 |
||
770 |
constNeeds2Slots := true. |
|
771 |
||
61 | 772 |
Verbose ifTrue:[Transcript show:'double; value= '; showCR:aFloat]. |
11 | 773 |
^ aFloat |
774 |
||
775 |
" |
|
776 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
777 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
778 |
" |
|
779 |
||
780 |
"Modified: 15.4.1996 / 15:42:16 / cg" |
|
781 |
"Created: 15.4.1996 / 16:34:42 / cg" |
|
782 |
! |
|
783 |
||
1 | 784 |
readConstant_Fieldref |
785 |
|class_index name_and_type_index| |
|
786 |
||
787 |
class_index := self nextU2. |
|
788 |
name_and_type_index := self nextU2. |
|
789 |
||
61 | 790 |
Verbose ifTrue:[Transcript show:'fieldref; classindex= '; showCR:class_index]. |
791 |
Verbose ifTrue:[Transcript show:'fieldref; name&typeindex= '; showCR:name_and_type_index]. |
|
1 | 792 |
|
91 | 793 |
^ JavaUnresolvedFieldrefConstant |
794 |
pool:constants |
|
795 |
poolIndex:constSlot |
|
1 | 796 |
classIndex:class_index |
797 |
nameandTypeIndex:name_and_type_index |
|
798 |
||
799 |
" |
|
800 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
801 |
" |
|
802 |
||
803 |
"Created: 15.4.1996 / 15:22:18 / cg" |
|
804 |
"Modified: 15.4.1996 / 16:07:01 / cg" |
|
805 |
! |
|
806 |
||
11 | 807 |
readConstant_Float |
808 |
|high aFloat| |
|
809 |
||
810 |
high := self nextU4. |
|
811 |
||
812 |
aFloat := ShortFloat basicNew. |
|
813 |
UninterpretedBytes isBigEndian ifTrue:[ |
|
814 |
aFloat basicAt:1 put:((high bitShift:-24) bitAnd:16rFF). |
|
815 |
aFloat basicAt:2 put:((high bitShift:-16) bitAnd:16rFF). |
|
816 |
aFloat basicAt:3 put:((high bitShift:-8) bitAnd:16rFF). |
|
817 |
aFloat basicAt:4 put:(high bitAnd:16rFF). |
|
818 |
] ifFalse:[ |
|
14
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
819 |
aFloat basicAt:1 put:(high bitAnd:16rFF). |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
820 |
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
|
821 |
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
|
822 |
aFloat basicAt:4 put:((high bitShift:-24) bitAnd:16rFF). |
11 | 823 |
]. |
824 |
||
61 | 825 |
Verbose ifTrue:[Transcript show:'float; value= '; showCR:aFloat]. |
11 | 826 |
^ aFloat |
827 |
||
828 |
" |
|
829 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
830 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
831 |
" |
|
832 |
||
833 |
"Modified: 15.4.1996 / 15:42:16 / cg" |
|
834 |
"Created: 15.4.1996 / 16:34:42 / cg" |
|
835 |
! |
|
836 |
||
1 | 837 |
readConstant_Integer |
838 |
|value| |
|
839 |
||
60 | 840 |
value := self nextS4. |
1 | 841 |
|
61 | 842 |
Verbose ifTrue:[Transcript show:'integer; value= '; showCR:value]. |
1 | 843 |
|
844 |
^ value |
|
845 |
||
846 |
" |
|
847 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
848 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
849 |
" |
|
850 |
||
851 |
"Modified: 15.4.1996 / 15:42:16 / cg" |
|
852 |
"Created: 15.4.1996 / 16:34:42 / cg" |
|
853 |
! |
|
854 |
||
14
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
855 |
readConstant_InterfaceMethodref |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
856 |
|class_index name_and_type_index| |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
857 |
|
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
858 |
class_index := self nextU2. |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
859 |
name_and_type_index := self nextU2. |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
860 |
|
61 | 861 |
Verbose ifTrue:[Transcript show:'methodref; classindex= '; showCR:class_index]. |
862 |
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
|
863 |
|
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
864 |
^ JavaUnresolvedInterfaceMethodrefConstant |
91 | 865 |
pool:constants |
866 |
poolIndex:constSlot |
|
14
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
867 |
classIndex:class_index |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
868 |
nameandTypeIndex:name_and_type_index |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
869 |
|
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
870 |
" |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
871 |
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
|
872 |
" |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
873 |
|
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
874 |
"Created: 15.4.1996 / 15:22:37 / cg" |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
875 |
"Modified: 15.4.1996 / 16:07:19 / cg" |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
876 |
! |
c1d9f60eb650
can now load all java.class files (see JavaClassReader>>loadFile:)
cg
parents:
11
diff
changeset
|
877 |
|
11 | 878 |
readConstant_Long |
879 |
|high low value| |
|
880 |
||
881 |
high := self nextU4. |
|
882 |
low := self nextU4. |
|
883 |
||
884 |
value := (high bitShift:32) bitOr:low. |
|
60 | 885 |
(high bitTest:16r80000000) ifTrue:[ |
886 |
value := value - 16r10000000000000000. |
|
887 |
]. |
|
11 | 888 |
constNeeds2Slots := true. |
889 |
||
61 | 890 |
Verbose ifTrue:[Transcript show:'long; value= '; showCR:value]. |
11 | 891 |
^ value |
892 |
||
893 |
" |
|
894 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
895 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
896 |
" |
|
897 |
||
898 |
"Modified: 15.4.1996 / 15:42:16 / cg" |
|
899 |
"Created: 15.4.1996 / 16:34:42 / cg" |
|
900 |
! |
|
901 |
||
1 | 902 |
readConstant_Methodref |
903 |
|class_index name_and_type_index| |
|
904 |
||
905 |
class_index := self nextU2. |
|
906 |
name_and_type_index := self nextU2. |
|
907 |
||
61 | 908 |
Verbose ifTrue:[Transcript show:'methodref; classindex= '; showCR:class_index]. |
909 |
Verbose ifTrue:[Transcript show:'methodref; name&typeindex= '; showCR:name_and_type_index]. |
|
1 | 910 |
|
911 |
^ JavaUnresolvedMethodrefConstant |
|
91 | 912 |
pool:constants |
913 |
poolIndex:constSlot |
|
1 | 914 |
classIndex:class_index |
915 |
nameandTypeIndex:name_and_type_index |
|
916 |
||
917 |
" |
|
918 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
919 |
" |
|
920 |
||
921 |
"Created: 15.4.1996 / 15:22:37 / cg" |
|
922 |
"Modified: 15.4.1996 / 16:07:19 / cg" |
|
923 |
! |
|
924 |
||
91 | 925 |
readConstant_NameAndType |
1 | 926 |
|name_index signature_index| |
927 |
||
928 |
name_index := self nextU2. |
|
929 |
signature_index := self nextU2. |
|
930 |
||
61 | 931 |
Verbose ifTrue:[Transcript show:'methodref; nameindex= '; showCR:name_index]. |
932 |
Verbose ifTrue:[Transcript show:'methodref; signatureindex= '; showCR:signature_index]. |
|
1 | 933 |
|
934 |
^ JavaUnresolvedNameandTypeConstant |
|
91 | 935 |
pool:constants |
936 |
poolIndex:constSlot |
|
1 | 937 |
nameIndex:name_index |
91 | 938 |
signatureIndex:signature_index |
1 | 939 |
|
940 |
" |
|
941 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
942 |
" |
|
943 |
||
944 |
"Created: 15.4.1996 / 15:23:43 / cg" |
|
945 |
"Modified: 15.4.1996 / 16:17:16 / cg" |
|
946 |
! |
|
947 |
||
948 |
readConstant_String |
|
949 |
|tag string_index| |
|
950 |
||
951 |
string_index := self nextU2. |
|
952 |
||
61 | 953 |
Verbose ifTrue:[Transcript show:'string; index= '; showCR:string_index]. |
1 | 954 |
|
91 | 955 |
^ JavaUnresolvedStringConstant |
956 |
pool:constants |
|
957 |
poolIndex:constSlot |
|
958 |
stringIndex:string_index |
|
1 | 959 |
|
960 |
" |
|
43 | 961 |
Verbose := true. |
962 |
JavaClassReader readFile:'/phys/ibm3/java/lib/java/lang/System.class' |
|
1 | 963 |
" |
964 |
||
965 |
"Created: 15.4.1996 / 15:20:33 / cg" |
|
966 |
"Modified: 15.4.1996 / 16:01:37 / cg" |
|
5 | 967 |
! ! |
968 |
||
969 |
!JavaClassReader methodsFor:'file reading - fields'! |
|
970 |
||
971 |
readConstantValueAttributeFor:aField |
|
972 |
|attribute_length constantvalue_index constantValue| |
|
973 |
||
974 |
attribute_length := self nextU4. |
|
975 |
||
976 |
constantvalue_index := self nextU2. |
|
977 |
constantValue := constants at:constantvalue_index. |
|
978 |
||
59 | 979 |
aField constantValue:constantValue. |
980 |
||
61 | 981 |
Verbose ifTrue:[Transcript show:'constantValue: '; showCR:constantValue]. |
5 | 982 |
^ true |
983 |
||
984 |
" |
|
985 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
986 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
|
987 |
" |
|
988 |
||
989 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
990 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
1 | 991 |
! |
992 |
||
993 |
readFieldInfofield |
|
5 | 994 |
|access_flags name_index signature_index attributes_count field| |
1 | 995 |
|
996 |
access_flags := self nextU2. |
|
997 |
name_index := self nextU2. |
|
998 |
signature_index := self nextU2. |
|
5 | 999 |
|
1000 |
field := JavaField new. |
|
1001 |
field setAccessFlags:access_flags. |
|
1002 |
field setName:(constants at:name_index). |
|
1003 |
field setSignature:(constants at:signature_index). |
|
1004 |
||
1 | 1005 |
attributes_count := self nextU2. |
1006 |
||
99 | 1007 |
Verbose ifTrue:[Transcript show:' field name: '; show:(constants at:name_index); |
1008 |
show:' access: '; show:access_flags; |
|
1009 |
show:' attrib_cnt: '; showCR:attributes_count]. |
|
1010 |
||
1 | 1011 |
1 to:attributes_count do:[:i | |
5 | 1012 |
self readAttributeFor:field. |
1 | 1013 |
]. |
1014 |
||
27 | 1015 |
^ field |
1016 |
||
1 | 1017 |
" |
1018 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
1019 |
" |
|
1020 |
||
1021 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
1022 |
"Created: 15.4.1996 / 15:38:43 / cg" |
|
1023 |
! |
|
1024 |
||
1025 |
readFieldInfofields |
|
38 | 1026 |
|nFields fields| |
1 | 1027 |
|
1028 |
"/ |
|
38 | 1029 |
"/ get fieldInfos |
1 | 1030 |
"/ |
27 | 1031 |
nFields := self nextU2. |
61 | 1032 |
Verbose ifTrue:[Transcript show:'fieldsCount = '; showCR:nFields]. |
1 | 1033 |
|
27 | 1034 |
fields := Array new:nFields. |
1035 |
||
1036 |
1 to:nFields do:[:i | |
|
61 | 1037 |
Verbose ifTrue:[Transcript show:'field: '; showCR:i]. |
27 | 1038 |
fields at:i put:(self readFieldInfofield) |
1 | 1039 |
]. |
38 | 1040 |
^ fields |
1 | 1041 |
|
1042 |
" |
|
1043 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
1044 |
" |
|
1045 |
||
1046 |
"Created: 15.4.1996 / 15:34:41 / cg" |
|
1047 |
"Modified: 15.4.1996 / 15:35:28 / cg" |
|
5 | 1048 |
! ! |
1049 |
||
38 | 1050 |
!JavaClassReader methodsFor:'file reading - interfaces'! |
1051 |
||
1052 |
readInterfaces |
|
1053 |
|interfacesCount interface interfaces| |
|
1054 |
||
1055 |
"/ |
|
1056 |
"/ get interfaces |
|
1057 |
"/ |
|
1058 |
interfacesCount := self nextU2. |
|
61 | 1059 |
Verbose ifTrue:[Transcript show:'interfacesCount = '; showCR:interfacesCount]. |
38 | 1060 |
|
1061 |
interfaces := Array new:interfacesCount. |
|
1062 |
||
1063 |
1 to:interfacesCount do:[:i | |
|
61 | 1064 |
Verbose ifTrue:[Transcript show:'interface: '; showCR:i]. |
38 | 1065 |
interface = self nextU2. |
1066 |
||
1067 |
interfaces at:i put:interface. |
|
1068 |
]. |
|
1069 |
^ interfaces |
|
1070 |
||
1071 |
" |
|
1072 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
1073 |
" |
|
1074 |
||
1075 |
"Created: 15.4.1996 / 15:31:59 / cg" |
|
1076 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
1077 |
! ! |
|
1078 |
||
5 | 1079 |
!JavaClassReader methodsFor:'file reading - methods'! |
1080 |
||
1081 |
readCodeAttributeFor:aJavaMethod |
|
1082 |
|attribute_length max_stack max_locals code_length code |
|
9 | 1083 |
exception_table_length exception_table unknown1 unknown2| |
1 | 1084 |
|
5 | 1085 |
attribute_length := self nextU4. |
1 | 1086 |
|
9 | 1087 |
|
61 | 1088 |
Verbose ifTrue:[Transcript show:'attribute_length: 0x'; showCR:(attribute_length printStringRadix:16)]. |
9 | 1089 |
|
99 | 1090 |
minorVsn > 2 ifTrue:[ |
39 | 1091 |
unknown1 := self nextU1. |
1092 |
max_stack := self nextU1. |
|
1093 |
max_locals := self nextU2. |
|
9 | 1094 |
unknown2 := self nextU2. |
61 | 1095 |
Verbose ifTrue:[Transcript show:'?1: '; showCR:unknown1]. |
1096 |
Verbose ifTrue:[Transcript show:'?2: '; showCR:unknown2]. |
|
39 | 1097 |
] ifFalse:[ |
1098 |
max_stack := self nextU1. |
|
1099 |
max_locals := self nextU1. |
|
9 | 1100 |
]. |
1101 |
||
5 | 1102 |
code_length := self nextU2. |
61 | 1103 |
Verbose ifTrue:[Transcript show:'code_length: '; showCR:(code_length printStringRadix:16)]. |
1104 |
Verbose ifTrue:[Transcript show:'code at pos: '; showCR:inStream position]. |
|
38 | 1105 |
|
5 | 1106 |
code := ByteArray new:code_length. |
1107 |
inStream nextBytes:code_length into:code startingAt:1. |
|
1 | 1108 |
|
61 | 1109 |
Verbose ifTrue:[Transcript show:'method code:'; showCR:code.]. |
9 | 1110 |
|
5 | 1111 |
exception_table_length := self nextU2. |
61 | 1112 |
Verbose ifTrue:[Transcript show:'exception_table_length: '; showCR:(exception_table_length printStringRadix:16)]. |
5 | 1113 |
exception_table_length ~~ 0 ifTrue:[ |
61 | 1114 |
Verbose ifTrue:[Transcript show:'exceptionTable length:'; showCR:exception_table_length.]. |
9 | 1115 |
|
5 | 1116 |
exception_table := Array new:exception_table_length. |
1117 |
1 to:exception_table_length do:[:i | |
|
1118 |
|start_pc end_pc handler_pc catch_type| |
|
1 | 1119 |
|
5 | 1120 |
start_pc := self nextU2. |
1121 |
end_pc := self nextU2. |
|
1122 |
handler_pc := self nextU2. |
|
104 | 1123 |
catch_type := constants at:self nextU2. |
5 | 1124 |
exception_table at:i put:(JavaExceptionTableEntry |
1125 |
startPC:start_pc |
|
1126 |
endPC:end_pc |
|
1127 |
handlerPC:handler_pc |
|
1128 |
catchType:catch_type). |
|
1129 |
]. |
|
83 | 1130 |
aJavaMethod setExceptionHandlerTable:exception_table. |
1 | 1131 |
]. |
1132 |
||
29 | 1133 |
aJavaMethod |
1134 |
setCode:code |
|
1135 |
maxStack:max_stack |
|
1136 |
maxLocals:max_locals |
|
1137 |
u1:unknown1 |
|
1138 |
u2:unknown2. |
|
5 | 1139 |
|
1140 |
self readAttributesFor:aJavaMethod. |
|
1141 |
^ true |
|
1142 |
||
1 | 1143 |
" |
1144 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
5 | 1145 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/Alignable.class' |
1 | 1146 |
" |
1147 |
||
1148 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
5 | 1149 |
"Created: 15.4.1996 / 15:40:17 / cg" |
1150 |
! |
|
1151 |
||
83 | 1152 |
readExceptionsAttributeFor:aJavaMethod |
1153 |
|attribute_length exception_table_length exception_table| |
|
1154 |
||
1155 |
attribute_length := self nextU4. |
|
1156 |
||
1157 |
exception_table_length := self nextU2. |
|
1158 |
exception_table_length ~~ 0 ifTrue:[ |
|
1159 |
exception_table := Array new:exception_table_length. |
|
1160 |
1 to:exception_table_length do:[:i | |
|
1161 |
|idx ex| |
|
1162 |
||
1163 |
idx := self nextU2. |
|
1164 |
ex := constants at:idx. |
|
1165 |
exception_table at:i put:ex. |
|
1166 |
]. |
|
1167 |
]. |
|
1168 |
||
1169 |
Verbose ifTrue:[Transcript showCR:'method has an exceptionTable']. |
|
1170 |
||
1171 |
aJavaMethod setExceptionTable:exception_table. |
|
1172 |
^ true |
|
1173 |
||
1174 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
1175 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
1176 |
! |
|
1177 |
||
5 | 1178 |
readLineNumberTableAttributeFor:aJavaMethod |
1179 |
|attribute_length line_number_table_length line_number_table| |
|
1180 |
||
1181 |
attribute_length := self nextU4. |
|
1182 |
||
1183 |
line_number_table_length := self nextU2. |
|
1184 |
line_number_table_length ~~ 0 ifTrue:[ |
|
1185 |
line_number_table := Array new:line_number_table_length. |
|
1186 |
1 to:line_number_table_length do:[:i | |
|
1187 |
|start_pc line_number| |
|
1188 |
||
1189 |
start_pc := self nextU2. |
|
1190 |
line_number := self nextU2. |
|
1191 |
line_number_table at:i put:(start_pc -> line_number). |
|
1192 |
]. |
|
1193 |
]. |
|
1194 |
||
61 | 1195 |
Verbose ifTrue:[Transcript showCR:'method has a lineNumberTable']. |
9 | 1196 |
|
5 | 1197 |
aJavaMethod setLineNumberTable:line_number_table. |
1198 |
^ true |
|
1199 |
||
1200 |
" |
|
1201 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
1202 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/java/lang/Boolean.class' |
|
1203 |
" |
|
1204 |
||
1205 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
1206 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
1 | 1207 |
! |
1208 |
||
50 | 1209 |
readLocalVariableTableAttributeFor:aJavaMethod |
1210 |
|attribute_length local_variable_table_length local_variable_table| |
|
1211 |
||
1212 |
attribute_length := self nextU4. |
|
1213 |
||
1214 |
local_variable_table_length := self nextU2. |
|
1215 |
local_variable_table_length ~~ 0 ifTrue:[ |
|
104 | 1216 |
local_variable_table := JavaLocalVariableTable new:local_variable_table_length. |
50 | 1217 |
1 to:local_variable_table_length do:[:i | |
1218 |
|start_pc length name_index sig_index slot name signature| |
|
1219 |
||
1220 |
start_pc := self nextU2. |
|
1221 |
length := self nextU2. |
|
1222 |
name_index := self nextU2. |
|
86 | 1223 |
name := constants at:name_index. |
50 | 1224 |
sig_index := self nextU2. |
86 | 1225 |
signature := constants at:sig_index. |
50 | 1226 |
slot := self nextU2. |
1227 |
||
1228 |
local_variable_table at:i put:(JavaLocalVariableTableEntry new |
|
1229 |
startPC:start_pc |
|
1230 |
length:length |
|
1231 |
name:name |
|
1232 |
signature:signature |
|
1233 |
slot:slot) |
|
1234 |
]. |
|
1235 |
]. |
|
1236 |
||
61 | 1237 |
Verbose ifTrue:[Transcript showCR:'method has a localvariableTable']. |
50 | 1238 |
|
1239 |
aJavaMethod setLocalVariableTable:local_variable_table. |
|
1240 |
^ true |
|
1241 |
||
1242 |
" |
|
1243 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
1244 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/java/lang/Boolean.class' |
|
1245 |
" |
|
1246 |
||
1247 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
1248 |
"Created: 15.4.1996 / 15:40:17 / cg" |
|
1249 |
! |
|
1250 |
||
38 | 1251 |
readMethodFor:aJavaClass |
9 | 1252 |
|m access_flags name_index name signature_index signature| |
1 | 1253 |
|
1254 |
"/ |
|
1255 |
"/ get a method |
|
1256 |
"/ |
|
1257 |
access_flags := self nextU2. |
|
1258 |
name_index := self nextU2. |
|
1259 |
signature_index := self nextU2. |
|
1260 |
||
5 | 1261 |
name := constants at:name_index. |
1262 |
signature := constants at:signature_index. |
|
9 | 1263 |
|
61 | 1264 |
Verbose ifTrue:[Transcript show:'method name:'; showCR:name. |
1265 |
Transcript show:'signature:'; showCR:signature.]. |
|
9 | 1266 |
|
5 | 1267 |
m := JavaMethod new. |
1268 |
m setAccessFlags:access_flags. |
|
1269 |
m setSignature:signature. |
|
1270 |
m setName:name. |
|
38 | 1271 |
m setJavaClass:aJavaClass. |
5 | 1272 |
|
1273 |
self readAttributesFor:m. |
|
1274 |
||
38 | 1275 |
aJavaClass addMethod:m name:name signature:signature. |
1 | 1276 |
|
1277 |
" |
|
1278 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
1279 |
" |
|
1280 |
||
1281 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
1282 |
"Created: 15.4.1996 / 16:48:49 / cg" |
|
1283 |
! |
|
1284 |
||
38 | 1285 |
readMethodsFor:aJavaClass |
1 | 1286 |
|methodsCount method| |
1287 |
||
1288 |
||
1289 |
"/ |
|
1290 |
"/ get methods |
|
1291 |
"/ |
|
1292 |
methodsCount := self nextU2. |
|
61 | 1293 |
Verbose ifTrue:[Transcript show:'methodsCount = '; showCR:methodsCount]. |
1 | 1294 |
|
1295 |
1 to:methodsCount do:[:i | |
|
61 | 1296 |
Verbose ifTrue:[Transcript show:'method: '; showCR:i]. |
38 | 1297 |
method := self readMethodFor:aJavaClass |
1 | 1298 |
]. |
1299 |
||
1300 |
" |
|
1301 |
JavaClassReader readFile:'/phys/ibm3/hotjava/classes/browser/AddButton.class' |
|
1302 |
" |
|
1303 |
||
1304 |
"Modified: 15.4.1996 / 15:33:28 / cg" |
|
1305 |
"Created: 15.4.1996 / 16:46:30 / cg" |
|
1306 |
! ! |
|
1307 |
||
1308 |
!JavaClassReader methodsFor:'low level reading'! |
|
1309 |
||
60 | 1310 |
nextS4 |
1311 |
^ inStream nextLongMSB:msb |
|
1312 |
||
1313 |
"Created: 15.4.1996 / 15:04:28 / cg" |
|
1314 |
! |
|
1315 |
||
1 | 1316 |
nextU1 |
1317 |
^ inStream nextByte |
|
1318 |
||
1319 |
"Created: 15.4.1996 / 15:15:43 / cg" |
|
1320 |
! |
|
1321 |
||
1322 |
nextU2 |
|
1323 |
^ inStream nextUnsignedShortMSB:msb |
|
1324 |
||
1325 |
"Created: 15.4.1996 / 15:12:25 / cg" |
|
1326 |
! |
|
1327 |
||
1328 |
nextU4 |
|
1329 |
^ inStream nextUnsignedLongMSB:msb |
|
1330 |
||
1331 |
"Created: 15.4.1996 / 15:04:28 / cg" |
|
1332 |
! ! |
|
1333 |
||
62 | 1334 |
!JavaClassReader class methodsFor:'documentation'! |
1 | 1335 |
|
1336 |
version |
|
104 | 1337 |
^ '$Header: /home/jv/Projects/SmalltalkX/repositories/cvs/stx/libjava/JavaClassReader.st,v 1.32 1996/07/02 12:20:58 cg Exp $' |
1 | 1338 |
! ! |
1339 |
JavaClassReader initialize! |