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885824d3 | 1 | /* ;-*-C-*-; |
2 | ** Copyright (c) Massachusetts Institute of Technology 1994-1998. | |
3 | ** All Rights Reserved. | |
4 | ** Unpublished rights reserved under the copyright laws of | |
5 | ** the United States. | |
6 | ** | |
7 | ** THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED | |
8 | ** OR IMPLIED. ANY USE IS AT YOUR OWN RISK. | |
9 | ** | |
10 | ** This code is distributed freely and may be used freely under the | |
11 | ** following conditions: | |
12 | ** | |
13 | ** 1. This notice may not be removed or altered. | |
14 | ** | |
15 | ** 2. Works derived from this code are not distributed for | |
16 | ** commercial gain without explicit permission from MIT | |
17 | ** (for permission contact lclint-request@sds.lcs.mit.edu). | |
18 | */ | |
19 | /* | |
20 | ** ctbase.i | |
21 | ** | |
22 | ** NOTE: This is not a stand-alone source file, but is included in ctype.c. | |
23 | ** (This is necessary becuase there is no other way in C to have a | |
24 | ** hidden scope, besides at the file level.) | |
25 | */ | |
26 | ||
27 | /*@access cprim*/ | |
28 | ||
29 | typedef /*@null@*/ struct __ctbase *ctbase; | |
30 | ||
31 | typedef struct _ctentry { | |
32 | ctkind kind; | |
33 | ctbase ctbase; | |
34 | ctype base; /* type I point to (or element of array) */ | |
35 | ctype ptr; /* type of pointer to me */ | |
36 | ctype array; /* type of array of me */ | |
37 | cstring unparse; /* unparse me, if memoized */ | |
38 | } *ctentry ; | |
39 | ||
40 | typedef /*@only@*/ ctentry o_ctentry; | |
41 | ||
42 | typedef struct _cttable { | |
43 | int size; | |
44 | int nspace; | |
45 | /*@relnull@*/ /*@only@*/ o_ctentry *entries; | |
46 | /* memoize matches...maybe in context? */ | |
47 | } cttable ; | |
48 | ||
49 | extern bool ctentry_isBogus (/*@sef@*/ ctentry p_c) /*@*/; | |
50 | # define ctentry_isBogus(c) \ | |
51 | ((c)->kind == CTK_INVALID || (c)->kind == CTK_DNE) | |
52 | ||
53 | static cttable cttab = { 0, 0, NULL }; | |
54 | ||
55 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createAbstract (typeId p_u); | |
56 | static /*@observer@*/ cstring ctentry_doUnparse (ctentry p_c) /*@modifies p_c@*/; | |
57 | static /*@only@*/ ctentry | |
58 | ctentry_make (ctkind p_ctk, /*@keep@*/ ctbase p_c, ctype p_base, | |
59 | ctype p_ptr, ctype p_array, /*@keep@*/ cstring p_unparse); | |
60 | static /*@only@*/ ctentry ctentry_makeNew (ctkind p_ctk, /*@only@*/ ctbase p_c); | |
61 | static /*@only@*/ cstring ctentry_unparse (ctentry p_c) /*@*/ ; | |
62 | ||
63 | static void cttable_grow (void); | |
64 | static ctype cttable_addDerived (ctkind p_ctk, /*@keep@*/ ctbase p_cnew, ctype p_base); | |
65 | static ctype cttable_addFull (/*@keep@*/ ctentry p_cnew); | |
66 | static bool ctentry_isInteresting (ctentry p_c) /*@*/; | |
67 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_makeFixedArray (ctype p_b, long p_size) /*@*/ ; | |
68 | ||
69 | /* | |
70 | ** These are file-static macros (used in ctype.c). No way to | |
71 | ** declare them as static in C. | |
72 | */ | |
73 | ||
74 | /*@-allmacros@*/ /*@-macrospec@*/ /*@-namechecks@*/ | |
75 | # define ctentry_getBase(c) ((c)->base) | |
76 | # define ctentry_getKind(c) ((c)->kind) | |
77 | # define ctentry_getArray(c) ((c)->array) | |
78 | # define ctentry_getPtr(c) ((c)->ptr) | |
79 | # define ctentry_isArray(c) ((c)->kind == CTK_ARRAY) | |
80 | # define ctentry_isComplex(c) ((c)->kind == CTK_COMPLEX) | |
81 | # define ctentry_isPlain(c) ((c)->kind == CTK_PLAIN) | |
82 | # define ctentry_isPointer(c) ((c)->kind == CTK_PTR) | |
83 | # define ctentry_setArray(c,b) ((c)->array = (b)) | |
84 | # define ctentry_setPtr(c,b) ((c)->ptr = (b)) | |
85 | ||
86 | # define ctbase_fixUser(c) (c = ctbase_realType(c)) | |
87 | /*@=allmacros@*/ /*@=macrospec@*/ /*@=namechecks@*/ | |
88 | ||
89 | static ctype cttable_addComplex (/*@notnull@*/ /*@only@*/ ctbase p_cnew); | |
90 | static /*@observer@*/ ctbase ctype_getCtbase (ctype p_c) /*@*/ ; | |
91 | static ctype ctype_makeConjAux (ctype p_c1, ctype p_c2, bool p_isExplicit) /*@*/ ; | |
92 | static /*@notnull@*/ /*@observer@*/ ctbase ctype_getCtbaseSafe (ctype p_c) /*@*/ ; | |
93 | static /*@observer@*/ ctentry ctype_getCtentry (ctype p_c) /*@*/ ; | |
94 | static /*@observer@*/ /*@notnull@*/ ctbase | |
95 | ctbase_realType (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
96 | static bool ctbase_isPointer (/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
97 | static bool ctbase_isEitherArray (/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
98 | static /*@observer@*/ enumNameList ctbase_elist (ctbase p_c) /*@*/ ; | |
99 | static /*@only@*/ cstring ctbase_unparse (ctbase p_c) /*@*/ ; | |
100 | static /*@only@*/ cstring ctbase_unparseDeep (ctbase p_c) /*@*/ ; | |
101 | static /*@only@*/ /*@notnull@*/ ctbase ctbase_copy (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
102 | static void ctbase_free (/*@only@*/ ctbase p_c); | |
103 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createPrim (cprim p_p) /*@*/ ; | |
104 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createBool (void) /*@*/ ; | |
105 | static /*@notnull@*/ /*@observer@*/ ctbase ctbase_getBool (void) /*@*/ ; | |
106 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createUser (typeId p_u) /*@*/ ; | |
107 | ||
108 | static /*@notnull@*/ /*@only@*/ ctbase | |
109 | ctbase_createStruct (/*@only@*/ cstring p_n, /*@only@*/ uentryList p_f); | |
110 | ||
111 | static /*@notnull@*/ /*@only@*/ ctbase | |
112 | ctbase_createUnion (/*@keep@*/ cstring p_n, /*@only@*/ uentryList p_f); | |
113 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createEnum (/*@keep@*/ cstring p_etag, /*@keep@*/ enumNameList p_emembers); | |
114 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createUnknown (void); | |
115 | static bool ctbase_match (ctbase p_c1, ctbase p_c2) /*@modifies nothing@*/; | |
116 | static bool ctbase_matchDef (ctbase p_c1, ctbase p_c2) /*@modifies nothing@*/; | |
117 | static bool ctbase_genMatch (ctbase p_c1, ctbase p_c2, bool p_force, bool p_arg, bool p_def); | |
118 | static bool ctbase_isAbstract (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
119 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_makePointer (ctype p_b) /*@*/ ; | |
120 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_makeArray (ctype p_b) /*@*/ ; | |
121 | static /*@notnull@*/ ctype | |
122 | ctbase_makeFunction (ctype p_b, /*@only@*/ uentryList p_p) /*@*/ ; | |
123 | static /*@notnull@*/ /*@only@*/ ctbase | |
124 | ctbase_makeRealFunction (ctype p_b, /*@dependent@*/ uentryList p_p) /*@*/ ; | |
125 | static /*@notnull@*/ /*@observer@*/ ctbase | |
126 | ctbase_realFunction (/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
127 | static ctype ctbase_baseArrayPtr (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
128 | static ctype ctbase_baseFunction (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
129 | static /*@observer@*/ uentryList ctbase_argsFunction (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
130 | static /*@observer@*/ uentryList ctbase_getuentryList (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
131 | static ctype ctbase_newBase (ctype p_c, ctype p_p) /*@*/ ; | |
132 | static ctype ctbase_newBaseExpFcn (ctype p_c, ctype p_p) /*@*/ ; | |
133 | static bool ctbase_isFixedArray (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
134 | ||
135 | /*@-macroundef@*/ | |
136 | extern int cttable_lastIndex(); | |
137 | # define cttable_lastIndex() (cttab.size - 1) | |
138 | /*@=macroundef@*/ | |
139 | ||
140 | typedef struct _cfcn | |
141 | { | |
142 | ctype rval; | |
143 | /*@dependent@*/ uentryList params; /* params are owned if liveparams is TRUE */ | |
144 | bool liveparams; | |
145 | } *cfcn; | |
146 | ||
147 | typedef struct _tsu | |
148 | { | |
149 | cstring name; | |
150 | uentryList fields; | |
151 | } *tsu; | |
152 | ||
153 | typedef struct _tconj | |
154 | { | |
155 | ctype a; | |
156 | ctype b; | |
157 | bool isExplicit; | |
158 | } *tconj; | |
159 | ||
160 | typedef struct _tenum | |
161 | { | |
162 | cstring tag; | |
163 | enumNameList members; | |
164 | } *tenum; | |
165 | ||
166 | typedef struct _tfixed | |
167 | { | |
168 | ctype base; | |
169 | long size; | |
170 | } *tfixed; | |
171 | ||
172 | typedef union _uconts | |
173 | { | |
174 | cprim prim; /* primitive */ | |
175 | typeId tid; /* abstract, user */ | |
176 | ctype base; /* ptr, array */ | |
177 | cfcn fcn; /* function */ | |
178 | tsu su; /* struct union */ | |
179 | tenum cenum; /* enum */ | |
180 | tconj conj; /* conj */ | |
181 | tfixed farray; /* fixed array */ | |
182 | } uconts; | |
183 | ||
184 | struct __ctbase | |
185 | { | |
186 | ctuid type; | |
187 | uconts contents; | |
188 | } ; | |
189 | ||
190 | static /*@falsenull@*/ bool ctbase_isUA (ctbase p_c) /*@*/ ; | |
191 | static bool ctbase_isBaseUA(ctbase p_c) /*@*/ ; | |
192 | static typeId ctbase_typeBaseUid(ctbase p_c) /*@*/ ; | |
193 | static bool ctbase_isKind (/*@notnull@*/ ctbase p_c, ctuid p_kind) /*@*/ ; | |
194 | static bool ctbase_isKind2 (/*@notnull@*/ ctbase p_c, ctuid p_kind1, ctuid p_kind2) /*@*/ ; | |
195 | static /*@only@*/ /*@notnull@*/ ctbase | |
196 | ctbase_getBaseType (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
197 | ||
198 | static /*@falsenull@*/ bool ctbase_isFunction(ctbase p_c) /*@*/ ; | |
199 | ||
200 | /*@constant null ctbase ctbase_undefined; @*/ | |
201 | # define ctbase_undefined ((ctbase)0) | |
202 | ||
203 | static /*@owned@*/ ctbase ctbase_bool = ctbase_undefined; | |
204 | static /*@owned@*/ ctbase ctbase_unknown = ctbase_undefined; | |
205 | ||
206 | static /*@falsenull@*/ bool ctbase_isDefined (ctbase c) /*@*/ | |
207 | { | |
208 | return ((c) != ctbase_undefined); | |
209 | } | |
210 | ||
211 | static /*@truenull@*/ bool ctbase_isUndefined (ctbase c) | |
212 | { | |
213 | return ((c) == ctbase_undefined); | |
214 | } | |
215 | ||
216 | static ctkind ctype_getCtKind (ctype c) | |
217 | { | |
218 | ctentry ce = ctype_getCtentry (c); | |
219 | ||
220 | return ctentry_getKind (ce); | |
221 | } | |
222 | ||
223 | static bool ctbase_isUser (ctbase c) | |
224 | { | |
225 | if (ctbase_isDefined (c)) | |
226 | { | |
227 | return (ctbase_isKind (c, CT_USER)); | |
228 | } | |
229 | else | |
230 | { | |
231 | return FALSE; | |
232 | } | |
233 | } | |
234 | ||
235 | static bool ctbase_isEnum (ctbase c) | |
236 | { | |
237 | if (ctbase_isDefined (c)) | |
238 | { | |
239 | return (ctbase_isKind (c, CT_ENUM)); | |
240 | } | |
241 | else | |
242 | { | |
243 | return FALSE; | |
244 | } | |
245 | } | |
246 | ||
247 | static bool ctbase_isExpFcn (ctbase c) | |
248 | { | |
249 | if (ctbase_isDefined (c)) | |
250 | { | |
251 | return (c->type == CT_EXPFCN); | |
252 | } | |
253 | else | |
254 | { | |
255 | return FALSE; | |
256 | } | |
257 | } | |
258 | ||
259 | static /*@falsenull@*/ bool ctbase_isConj (ctbase c) | |
260 | { | |
261 | if (ctbase_isDefined (c)) | |
262 | { | |
263 | return (c->type == CT_CONJ); | |
264 | } | |
265 | else | |
266 | { | |
267 | return FALSE; | |
268 | } | |
269 | } | |
270 | ||
271 | static bool ctuid_isAP (ctuid c) /*@*/ | |
272 | { | |
273 | return (c == CT_ARRAY || c == CT_PTR); | |
274 | } | |
275 | ||
276 | static typeId ctbase_typeId (ctbase p_c); | |
277 | static /*@only@*/ cstring ctbase_dump (ctbase p_c); | |
278 | static /*@only@*/ ctbase ctbase_undump (char **p_c); | |
279 | static int ctbase_compare (ctbase p_c1, ctbase p_c2, bool p_strict); | |
280 | static bool ctbase_matchArg (ctbase p_c1, ctbase p_c2); | |
281 | static /*@notnull@*/ /*@only@*/ ctbase | |
282 | ctbase_makeConj (ctype p_c1, ctype p_c2, bool p_isExplicit) /*@*/ ; | |
283 | static ctype ctbase_getConjA (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
284 | static ctype ctbase_getConjB (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
285 | static bool ctbase_isExplicitConj (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
286 | static bool ctbase_forceMatch (ctbase p_c1, ctbase p_c2); | |
287 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_expectFunction (ctype p_c); | |
288 | static bool ctbase_isVoidPointer(/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
289 | static bool ctbase_isUnion (/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
290 | static bool ctbase_isStruct (/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
291 | static /*@observer@*/ cstring ctbase_enumTag (/*@notnull@*/ ctbase p_ct) /*@*/ ; | |
292 | static /*@only@*/ cstring ctbase_unparseNotypes (ctbase p_c) /*@*/ ; | |
293 | ||
294 | static /*@out@*/ /*@notnull@*/ /*@only@*/ ctbase ctbase_new (void) /*@*/ ; | |
295 | static int nctbases = 0; | |
296 | ||
297 | static /*@notnull@*/ /*@only@*/ | |
298 | ctbase ctbase_makeLiveFunction (ctype p_b, /*@owned@*/ uentryList p_p); | |
299 | ||
300 | static /*@observer@*/ ctbase ctbase_realType (ctbase c) | |
301 | { | |
302 | if (ctbase_isUA (c)) | |
303 | { | |
304 | typeId uid = ctbase_typeId (c); | |
305 | ||
306 | if (usymtab_isBoolType (uid)) | |
307 | { | |
308 | return ctbase_getBool (); | |
309 | } | |
310 | else | |
311 | { | |
312 | ctbase ret = ctype_getCtbase | |
313 | (uentry_getRealType (usymtab_getTypeEntry (ctbase_typeId (c)))); | |
314 | ||
315 | llassert (ret != ctbase_undefined); | |
316 | return ret; | |
317 | } | |
318 | } | |
319 | else | |
320 | { | |
321 | return c; | |
322 | } | |
323 | } | |
324 | ||
325 | static bool | |
326 | ctbase_isVoidPointer (/*@dependent@*/ /*@notnull@*/ ctbase c) | |
327 | { | |
328 | ctbase r = ctbase_realType (c); | |
329 | ||
330 | return (ctbase_isKind (r, CT_PTR) && | |
331 | ctype_isVoid (r->contents.base)); | |
332 | } | |
333 | ||
334 | static bool | |
335 | ctbase_isPointer (/*@notnull@*/ /*@dependent@*/ ctbase c) | |
336 | { | |
337 | ctbase r = ctbase_realType (c); | |
338 | ||
339 | return (ctbase_isKind (r, CT_PTR)); | |
340 | } | |
341 | ||
342 | static bool | |
343 | ctbase_isEitherArray (/*@notnull@*/ ctbase c) | |
344 | { | |
345 | ctbase r = ctbase_realType (c); | |
346 | ||
347 | return (ctbase_isKind (r, CT_ARRAY) | |
348 | || ctbase_isKind (r, CT_FIXEDARRAY)); | |
349 | } | |
350 | ||
351 | static bool | |
352 | ctbase_isFixedArray (/*@notnull@*/ ctbase c) | |
353 | { | |
354 | ctbase r = ctbase_realType (c); | |
355 | ||
356 | return (ctbase_isKind (r, CT_FIXEDARRAY)); | |
357 | } | |
358 | ||
359 | static bool | |
360 | ctbase_isStruct (/*@notnull@*/ ctbase c) | |
361 | { | |
362 | ctbase r = ctbase_realType (c); | |
363 | ||
364 | return (ctbase_isKind (r, CT_STRUCT)); | |
365 | } | |
366 | ||
367 | static bool | |
368 | ctbase_isUnion (/*@notnull@*/ /*@dependent@*/ ctbase c) | |
369 | { | |
370 | ctbase r = ctbase_realType (c); | |
371 | ||
372 | return (ctbase_isKind (r, CT_UNION)); | |
373 | } | |
374 | ||
375 | /* | |
376 | ** clean this up -> typeTable should store ctype | |
377 | */ | |
378 | ||
379 | static typeId | |
380 | ctbase_typeBaseUid (ctbase c) | |
381 | { | |
382 | ctuid ct; | |
383 | ||
384 | if (ctbase_isDefined (c)) | |
385 | { | |
386 | ct = c->type; | |
387 | ||
388 | if (ctuid_isAP (ct)) | |
389 | { | |
390 | return ctbase_typeBaseUid (ctype_getCtbase (c->contents.base)); | |
391 | } | |
392 | else if (ct == CT_USER || ct == CT_ABST) | |
393 | { | |
394 | return c->contents.tid; | |
395 | } | |
396 | else if (ct == CT_FIXEDARRAY) | |
397 | { | |
398 | return ctbase_typeBaseUid (ctype_getCtbase (c->contents.farray->base)); | |
399 | } | |
400 | else | |
401 | { | |
402 | llcontbuglit ("ctbase_typeBaseUid: bad call"); | |
403 | return typeId_invalid; | |
404 | } | |
405 | } | |
406 | return typeId_invalid; | |
407 | } | |
408 | ||
409 | static bool | |
410 | ctbase_isBaseUA (ctbase c) | |
411 | { | |
412 | ctuid ct; | |
413 | ||
414 | if (ctbase_isDefined (c)) | |
415 | { | |
416 | ct = c->type; | |
417 | ||
418 | if (ctuid_isAP (ct)) | |
419 | { | |
420 | return ctbase_isBaseUA (ctype_getCtbase (c->contents.base)); | |
421 | } | |
422 | else if (ct == CT_FIXEDARRAY) | |
423 | { | |
424 | return ctbase_isBaseUA (ctype_getCtbase (c->contents.farray->base)); | |
425 | } | |
426 | else | |
427 | return (ct == CT_USER || ct == CT_ABST); | |
428 | } | |
429 | return FALSE; | |
430 | } | |
431 | ||
432 | static typeId | |
433 | ctbase_typeId (ctbase c) | |
434 | { | |
435 | if (ctbase_isUA (c)) | |
436 | { | |
437 | return c->contents.tid; | |
438 | } | |
439 | else | |
440 | { | |
441 | llcontbug (message ("ctbase_typeId: bad call: %q", ctbase_unparse (c))); | |
442 | return typeId_invalid; | |
443 | } | |
444 | } | |
445 | ||
446 | static /*@only@*/ cstring | |
447 | ctbase_unparse (ctbase c) | |
448 | { | |
449 | if (ctbase_isUndefined (c)) { | |
450 | return cstring_makeLiteral ("<<undef>>"); | |
451 | } | |
452 | ||
453 | switch (c->type) | |
454 | { | |
455 | case CT_UNKNOWN: | |
456 | return cstring_makeLiteral ("?"); | |
457 | case CT_BOOL: | |
458 | return cstring_copy (context_printBoolName ()); | |
459 | case CT_PRIM: | |
460 | return (cprim_unparse (c->contents.prim)); | |
461 | case CT_USER: | |
462 | return (usymtab_getTypeEntryName (c->contents.tid)); | |
463 | case CT_ABST: | |
464 | return (usymtab_getTypeEntryName (c->contents.tid)); | |
465 | case CT_EXPFCN: | |
466 | return (message ("<expf: %t>", c->contents.base)); | |
467 | case CT_PTR: | |
468 | /* no spaces for multiple pointers */ | |
469 | ||
470 | if (ctype_isPointer (c->contents.base)) | |
471 | { | |
472 | return (cstring_appendChar (cstring_copy (ctype_unparse (c->contents.base)), '*')); | |
473 | } | |
474 | else | |
475 | { | |
476 | return (message ("%t *", c->contents.base)); | |
477 | } | |
478 | case CT_FIXEDARRAY: | |
479 | return (message ("%t [%d]", c->contents.farray->base, | |
480 | (int) c->contents.farray->size)); | |
481 | case CT_ARRAY: | |
482 | return (message ("%t []", c->contents.base)); | |
483 | case CT_FCN: | |
484 | return (message ("[function (%q) returns %t]", | |
485 | uentryList_unparseParams (c->contents.fcn->params), | |
486 | c->contents.fcn->rval)); | |
487 | case CT_STRUCT: | |
488 | if (cstring_isDefined (c->contents.su->name) && | |
489 | !cstring_isEmpty (c->contents.su->name) && | |
490 | !isFakeTag (c->contents.su->name)) | |
491 | { | |
492 | return (message ("struct %s", c->contents.su->name)); | |
493 | } | |
494 | else | |
495 | { | |
496 | return (message ("struct { %q }", uentryList_unparseAbbrev (c->contents.su->fields))); | |
497 | } | |
498 | case CT_UNION: | |
499 | if (cstring_isDefined (c->contents.su->name) && | |
500 | !cstring_isEmpty (c->contents.su->name) && | |
501 | !isFakeTag (c->contents.su->name)) | |
502 | { | |
503 | return (message ("union %s", c->contents.su->name)); | |
504 | } | |
505 | else | |
506 | { | |
507 | return (message ("union { %q }", | |
508 | uentryList_unparseAbbrev (c->contents.su->fields))); | |
509 | } | |
510 | case CT_ENUM: | |
511 | if (isFakeTag (c->contents.cenum->tag)) | |
512 | { | |
513 | return (message ("enum { %q }", | |
514 | enumNameList_unparseBrief (c->contents.cenum->members))); | |
515 | } | |
516 | else | |
517 | { | |
518 | return (message ("enum %s { %q }", | |
519 | c->contents.cenum->tag, | |
520 | enumNameList_unparseBrief (c->contents.cenum->members))); | |
521 | } | |
522 | case CT_CONJ: | |
523 | if (c->contents.conj->isExplicit || context_getFlag (FLG_SHOWALLCONJS)) | |
524 | { | |
525 | if (!ctype_isSimple (c->contents.conj->a) || | |
526 | !ctype_isSimple (c->contents.conj->b)) | |
527 | { | |
528 | return (message ("<%t> | <%t>", c->contents.conj->a, c->contents.conj->b)); | |
529 | } | |
530 | else | |
531 | { | |
532 | return (message ("%t | %t", c->contents.conj->a, c->contents.conj->b)); | |
533 | } | |
534 | } | |
535 | else | |
536 | { | |
537 | return (cstring_copy (ctype_unparse (c->contents.conj->a))); | |
538 | } | |
539 | BADDEFAULT; | |
540 | } | |
541 | BADEXIT; | |
542 | } | |
543 | ||
544 | static /*@only@*/ cstring | |
545 | ctbase_unparseDeep (ctbase c) | |
546 | { | |
547 | if (ctbase_isUndefined (c)) | |
548 | { | |
549 | return cstring_makeLiteral ("<<undef>>"); | |
550 | } | |
551 | ||
552 | switch (c->type) | |
553 | { | |
554 | case CT_UNKNOWN: | |
555 | return cstring_makeLiteral ("?"); | |
556 | case CT_BOOL: | |
557 | return cstring_copy (context_printBoolName ()); | |
558 | case CT_PRIM: | |
559 | return (cprim_unparse (c->contents.prim)); | |
560 | case CT_ENUM: | |
561 | if (cstring_isNonEmpty (c->contents.cenum->tag)) | |
562 | { | |
563 | return (message ("enum %s { %q }", | |
564 | c->contents.cenum->tag, | |
565 | enumNameList_unparse (c->contents.cenum->members))); | |
566 | } | |
567 | else | |
568 | { | |
569 | return (message ("enum { %q }", | |
570 | enumNameList_unparse (c->contents.cenum->members))); | |
571 | } | |
572 | case CT_USER: | |
573 | return (usymtab_getTypeEntryName (c->contents.tid)); | |
574 | case CT_ABST: | |
575 | return (usymtab_getTypeEntryName (c->contents.tid)); | |
576 | case CT_EXPFCN: | |
577 | return (message ("<expf: %t>", c->contents.base)); | |
578 | case CT_PTR: | |
579 | return (message ("%t *", c->contents.base)); | |
580 | case CT_FIXEDARRAY: | |
581 | return (message ("%t [%d]", c->contents.farray->base, | |
582 | (int) c->contents.farray->size)); | |
583 | case CT_ARRAY: | |
584 | return (message ("%t []", c->contents.base)); | |
585 | case CT_FCN: | |
586 | return (message ("[function (%q) returns %t]", | |
587 | uentryList_unparse (c->contents.fcn->params), | |
588 | c->contents.fcn->rval)); | |
589 | case CT_STRUCT: | |
590 | return (message ("struct %s { ... } ", c->contents.su->name)); | |
591 | case CT_UNION: | |
592 | return (message ("union %s { ... }", c->contents.su->name)); | |
593 | case CT_CONJ: | |
594 | return (message ("%t", c->contents.conj->a)); | |
595 | BADDEFAULT; | |
596 | } | |
597 | BADEXIT; | |
598 | } | |
599 | ||
600 | static /*@only@*/ cstring | |
601 | ctbase_unparseNotypes (ctbase c) | |
602 | { | |
603 | llassert (ctbase_isDefined (c)); | |
604 | ||
605 | switch (c->type) | |
606 | { | |
607 | case CT_UNKNOWN: | |
608 | return cstring_makeLiteral ("?"); | |
609 | case CT_BOOL: | |
610 | return cstring_copy (context_printBoolName ()); | |
611 | case CT_PRIM: | |
612 | return (cprim_unparse (c->contents.prim)); | |
613 | case CT_ENUM: | |
614 | if (typeId_isInvalid (c->contents.tid)) | |
615 | { | |
616 | return cstring_makeLiteral ("enum"); | |
617 | } | |
618 | else | |
619 | { | |
620 | return (message ("T#%d", c->contents.tid)); | |
621 | } | |
622 | case CT_USER: | |
623 | return (message ("uT#%d", c->contents.tid)); | |
624 | case CT_ABST: | |
625 | return (message ("aT#%d", c->contents.tid)); | |
626 | case CT_EXPFCN: | |
627 | return (message ("<expf: %q >", ctbase_unparseNotypes (ctype_getCtbase (c->contents.base)))); | |
628 | case CT_PTR: | |
629 | return (message ("%q *", ctbase_unparseNotypes (ctype_getCtbase (c->contents.base)))); | |
630 | case CT_ARRAY: | |
631 | return (message ("%q []", ctbase_unparseNotypes (ctype_getCtbase (c->contents.base)))); | |
632 | case CT_FCN: | |
633 | return (message ("[function (%d) returns %q]", uentryList_size (c->contents.fcn->params), | |
634 | ctbase_unparseNotypes (ctype_getCtbase (c->contents.fcn->rval)))); | |
635 | case CT_STRUCT: | |
636 | return (message ("struct %s", c->contents.su->name)); | |
637 | case CT_UNION: | |
638 | return (message ("union %s", c->contents.su->name)); | |
639 | case CT_ENUMLIST: | |
640 | return (message ("[enumlist]")); | |
641 | case CT_CONJ: | |
642 | return (message ("%q/%q", | |
643 | ctbase_unparseNotypes (ctype_getCtbase (c->contents.conj->a)), | |
644 | ctbase_unparseNotypes (ctype_getCtbase (c->contents.conj->b)))); | |
645 | BADDEFAULT; | |
646 | } | |
647 | BADEXIT; | |
648 | } | |
649 | ||
650 | static /*@only@*/ cstring | |
651 | ctbase_unparseDeclaration (ctbase c, /*@only@*/ cstring name) /*@*/ | |
652 | { | |
653 | if (ctbase_isUndefined (c)) | |
654 | { | |
655 | return name; | |
656 | } | |
657 | ||
658 | switch (c->type) | |
659 | { | |
660 | case CT_UNKNOWN: | |
661 | return (message ("? %q", name)); | |
662 | case CT_BOOL: | |
663 | return (message ("%s %q", context_printBoolName (), name)); | |
664 | case CT_PRIM: | |
665 | return (message ("%q %q", cprim_unparse (c->contents.prim), name)); | |
666 | case CT_USER: | |
667 | case CT_ABST: | |
668 | return (message ("%q %q", usymtab_getTypeEntryName (c->contents.tid), name)); | |
669 | case CT_EXPFCN: | |
670 | llcontbuglit ("ctbase_unparseDeclaration: expfcn"); | |
671 | return name; | |
672 | case CT_PTR: | |
673 | if (ctype_isFunction (c->contents.base)) | |
674 | { | |
675 | return ctbase_unparseDeclaration (ctype_getCtbase (c->contents.base), name); | |
676 | } | |
677 | else | |
678 | { | |
679 | cstring s = cstring_prependChar ('*', name); | |
680 | cstring ret = ctbase_unparseDeclaration (ctype_getCtbase (c->contents.base), s); | |
681 | cstring_free (name); | |
682 | return (ret); | |
683 | } | |
684 | case CT_FIXEDARRAY: | |
685 | return (message ("%q[%d]", | |
686 | ctbase_unparseDeclaration (ctype_getCtbase (c->contents.farray->base), name), | |
687 | (int) c->contents.farray->size)); | |
688 | case CT_ARRAY: | |
689 | return (message ("%q[]", | |
690 | ctbase_unparseDeclaration (ctype_getCtbase (c->contents.base), name))); | |
691 | case CT_FCN: | |
692 | { | |
693 | cstring s = message ("%q(%q)", name, | |
694 | uentryList_unparseParams (c->contents.fcn->params)); | |
695 | ||
696 | return (ctbase_unparseDeclaration | |
697 | (ctype_getCtbase (c->contents.fcn->rval), s)); | |
698 | } | |
699 | case CT_STRUCT: | |
700 | if (cstring_isDefined (c->contents.su->name) && | |
701 | !cstring_isEmpty (c->contents.su->name) && | |
702 | !isFakeTag (c->contents.su->name)) | |
703 | { | |
704 | return (message ("struct %s %q", c->contents.su->name, name)); | |
705 | } | |
706 | else | |
707 | { | |
708 | return (message ("struct { %q } %q", | |
709 | uentryList_unparseAbbrev (c->contents.su->fields), | |
710 | name)); | |
711 | } | |
712 | case CT_UNION: | |
713 | if (cstring_isDefined (c->contents.su->name) && | |
714 | !cstring_isEmpty (c->contents.su->name) && | |
715 | !isFakeTag (c->contents.su->name)) | |
716 | { | |
717 | return (message ("union %s %q", c->contents.su->name, name)); | |
718 | } | |
719 | else | |
720 | { | |
721 | return (message ("union { %q } %q", | |
722 | uentryList_unparseAbbrev (c->contents.su->fields), | |
723 | name)); | |
724 | } | |
725 | case CT_ENUM: | |
726 | if (isFakeTag (c->contents.cenum->tag)) | |
727 | { | |
728 | return (message ("enum { %q } %q", | |
729 | enumNameList_unparseBrief (c->contents.cenum->members), | |
730 | name)); | |
731 | } | |
732 | else | |
733 | { | |
734 | return (message ("enum %s { %q } %q", | |
735 | c->contents.cenum->tag, | |
736 | enumNameList_unparseBrief (c->contents.cenum->members), | |
737 | name)); | |
738 | } | |
739 | case CT_CONJ: | |
740 | if (c->contents.conj->isExplicit || context_getFlag (FLG_SHOWALLCONJS)) | |
741 | { | |
742 | if (!ctype_isSimple (c->contents.conj->a) || | |
743 | !ctype_isSimple (c->contents.conj->b)) | |
744 | { | |
745 | cstring name1 = cstring_copy (name); | |
746 | ||
747 | return | |
748 | (message | |
749 | ("<%q> | <%q>", | |
750 | ctbase_unparseDeclaration | |
751 | (ctype_getCtbase (c->contents.conj->a), name1), | |
752 | ctbase_unparseDeclaration | |
753 | (ctype_getCtbase (c->contents.conj->b), name))); | |
754 | } | |
755 | else | |
756 | { | |
757 | cstring s1 = ctbase_unparseDeclaration (ctype_getCtbase (c->contents.conj->a), | |
758 | cstring_copy (name)); | |
759 | return | |
760 | (message ("%q | %q", s1, | |
761 | ctbase_unparseDeclaration (ctype_getCtbase (c->contents.conj->b), | |
762 | name))); | |
763 | } | |
764 | } | |
765 | else | |
766 | { | |
767 | cstring_free (name); | |
768 | return (cstring_copy (ctype_unparse (c->contents.conj->a))); | |
769 | } | |
770 | BADDEFAULT; | |
771 | } | |
772 | BADEXIT; | |
773 | } | |
774 | ||
775 | static ctbase ctbase_undump (d_char *c) | |
776 | { | |
777 | ctbase res; | |
778 | char p = **c; | |
779 | ||
780 | (*c)++; | |
781 | ||
782 | switch (p) | |
783 | { | |
784 | case '?': | |
785 | return (ctbase_undefined); | |
786 | case 'u': | |
787 | return (ctbase_createUnknown ()); | |
788 | case 'b': | |
789 | return (ctbase_createBool ()); | |
790 | case 'p': | |
791 | res = ctbase_createPrim (cprim_fromInt (getInt (c))); | |
792 | checkChar (c, '|'); | |
793 | return res; | |
794 | case 's': | |
795 | res = ctbase_createUser (typeId_fromInt (getInt (c))); | |
796 | checkChar (c, '|'); | |
797 | return res; | |
798 | case 'a': | |
799 | res = ctbase_createAbstract (typeId_fromInt (getInt (c))); | |
800 | checkChar (c, '|'); | |
801 | return res; | |
802 | case 't': | |
803 | res = ctbase_makePointer (ctype_undump (c)); | |
804 | checkChar (c, '|'); | |
805 | return res; | |
806 | case 'y': | |
807 | res = ctbase_makeArray (ctype_undump (c)); | |
808 | checkChar (c, '|'); | |
809 | return res; | |
810 | case 'F': | |
811 | { | |
812 | ctype ct = ctype_undump (c); | |
813 | int size; | |
814 | ||
815 | checkChar (c, '/'); | |
816 | size = getInt (c); | |
817 | checkChar (c, '|'); | |
818 | return (ctbase_makeFixedArray (ct, size)); | |
819 | } | |
820 | case 'f': | |
821 | { | |
822 | ctype ct; | |
823 | char *lp = strchr (*c, '('); | |
824 | ||
825 | llassertfatal (lp != NULL); | |
826 | ||
827 | *lp = '\0'; | |
828 | ct = ctype_undump (c); | |
829 | *c = lp + 1; | |
830 | ||
831 | return (ctbase_makeLiveFunction (ct, uentryList_undump (c))); | |
832 | } | |
833 | case 'S': | |
834 | { | |
835 | uentryList fields; | |
836 | ctbase ctb; | |
837 | char *sname; | |
838 | char *lc = strchr (*c, '{'); | |
839 | ||
840 | llassert (lc != NULL); | |
841 | *lc = '\0'; | |
842 | ||
843 | sname = mstring_copy (*c); | |
844 | ||
845 | *c = lc + 1; | |
846 | ||
847 | if (*sname == '!') | |
848 | { | |
849 | unsigned int i; | |
850 | ||
851 | i = (unsigned) atoi (sname + 1); | |
852 | ||
853 | setTagNo (i); | |
854 | } | |
855 | ||
856 | fields = uentryList_undumpFields (c, g_currentloc); | |
857 | ||
858 | ctb = ctbase_createStruct (cstring_fromCharsO (sname), fields); | |
859 | return ctb; | |
860 | } | |
861 | case 'U': | |
862 | { | |
863 | char *sname; | |
864 | char *lc = strchr (*c, '{'); | |
865 | ||
866 | llassert (lc != NULL); | |
867 | ||
868 | *lc = '\0'; | |
869 | sname = mstring_copy (*c); | |
870 | llassert (sname != NULL); | |
871 | ||
872 | *c = lc + 1; | |
873 | ||
874 | if (*sname == '!') | |
875 | { | |
876 | unsigned int i; | |
877 | ||
878 | i = (unsigned) atoi (sname + 1); | |
879 | setTagNo (i); | |
880 | } | |
881 | ||
882 | return (ctbase_createUnion (cstring_fromCharsO (sname), | |
883 | uentryList_undumpFields (c, g_currentloc))); | |
884 | } | |
885 | case 'e': | |
886 | { | |
887 | ctbase ret; | |
888 | char *sname; | |
889 | char *lc = strchr (*c, '{'); | |
890 | ||
891 | llassert (lc != NULL); | |
892 | ||
893 | *lc = '\0'; | |
894 | sname = mstring_copy (*c); | |
895 | *c = lc + 1; | |
896 | ||
897 | if (*sname == '!') | |
898 | { | |
899 | unsigned int i; | |
900 | ||
901 | i = (unsigned) atoi (sname + 1); | |
902 | setTagNo (i); | |
903 | } | |
904 | ||
905 | ret = ctbase_createEnum (cstring_fromCharsO (sname), | |
906 | enumNameList_undump (c)); | |
907 | return ret; | |
908 | } | |
909 | case 'C': | |
910 | { | |
911 | bool isExplicit; | |
912 | ctype c1, c2; | |
913 | ||
914 | isExplicit = bool_fromInt (getInt (c)); | |
915 | checkChar (c, '.'); | |
916 | c1 = ctype_undump (c); | |
917 | checkChar (c, '/'); | |
918 | c2 = ctype_undump (c); | |
919 | checkChar (c, '|'); | |
920 | ||
921 | return (ctbase_makeConj (c1, c2, isExplicit)); | |
922 | } | |
923 | ||
924 | default: | |
925 | (*c)--; | |
926 | llerror (FLG_SYNTAX, | |
927 | message ("Bad Library line (type): %s", cstring_fromChars (*c))); | |
928 | ||
929 | while (**c != '\0') | |
930 | { | |
931 | (*c)++; | |
932 | } | |
933 | ||
934 | return ctbase_createUnknown (); | |
935 | } | |
936 | } | |
937 | ||
938 | /* first letter of c encodes type: */ | |
939 | /* u unknown */ | |
940 | /* b bool */ | |
941 | /* p prim */ | |
942 | /* e enum */ | |
943 | /* l enumList */ | |
944 | /* s uSer */ | |
945 | /* a abstract */ | |
946 | /* t poinTer */ | |
947 | /* y arraY */ | |
948 | /* F Fixed array */ | |
949 | /* f function */ | |
950 | /* S structure */ | |
951 | /* U union */ | |
952 | /* C conj */ | |
953 | ||
954 | static /*@only@*/ cstring | |
955 | ctbase_dump (ctbase c) | |
956 | { | |
957 | if (!ctbase_isDefined (c)) | |
958 | { | |
959 | return cstring_makeLiteral ("?"); | |
960 | } | |
961 | ||
962 | switch (c->type) | |
963 | { | |
964 | case CT_UNKNOWN: | |
965 | return cstring_makeLiteral ("u"); | |
966 | case CT_BOOL: | |
967 | return cstring_makeLiteral ("b"); | |
968 | case CT_PRIM: | |
969 | return (message ("p%d|", c->contents.prim)); | |
970 | case CT_USER: | |
971 | return (message ("s%d|", | |
972 | usymtab_convertId (c->contents.tid))); | |
973 | case CT_ABST: | |
974 | return (message ("a%d|", usymtab_convertId (c->contents.tid))); | |
975 | case CT_PTR: | |
976 | return (message ("t%q|", ctype_dump (c->contents.base))); | |
977 | case CT_ARRAY: | |
978 | return (message ("y%q|", ctype_dump (c->contents.base))); | |
979 | case CT_FIXEDARRAY: | |
980 | return (message ("F%q/%d|", | |
981 | ctype_dump (c->contents.farray->base), | |
982 | (int) c->contents.farray->size)); | |
983 | case CT_FCN: | |
984 | return (message ("f%q (%q)", ctype_dump (c->contents.fcn->rval), | |
985 | uentryList_dumpParams (c->contents.fcn->params))); | |
986 | case CT_STRUCT: | |
987 | return (message ("S%s{%q}", c->contents.su->name, | |
988 | uentryList_dumpFields (c->contents.su->fields))); | |
989 | case CT_UNION: | |
990 | return (message ("U%s{%q}", c->contents.su->name, | |
991 | uentryList_dumpFields (c->contents.su->fields))); | |
992 | case CT_ENUM: | |
993 | { | |
994 | cstring s; | |
995 | ||
996 | if (cstring_isNonEmpty (c->contents.cenum->tag)) | |
997 | { | |
998 | s = message ("e%s{%q}", | |
999 | c->contents.cenum->tag, | |
1000 | enumNameList_dump (c->contents.cenum->members)); | |
1001 | } | |
1002 | else | |
1003 | { | |
1004 | s = message ("e{%q}", | |
1005 | enumNameList_dump (c->contents.cenum->members)); | |
1006 | } | |
1007 | return (s); | |
1008 | } | |
1009 | case CT_CONJ: | |
1010 | return (message ("C%d.%q/%q|", | |
1011 | bool_toInt (c->contents.conj->isExplicit), | |
1012 | ctype_dump (c->contents.conj->a), | |
1013 | ctype_dump (c->contents.conj->b))); | |
1014 | case CT_EXPFCN: | |
1015 | /* should clean them up! */ | |
1016 | return (cstring_makeLiteral ("?")); | |
1017 | case CT_ENUMLIST: | |
1018 | llcontbug (message ("Cannot dump: %q", ctbase_unparse (c))); | |
1019 | return (message ("u")); | |
1020 | BADDEFAULT; | |
1021 | } | |
1022 | ||
1023 | BADEXIT; | |
1024 | } | |
1025 | ||
1026 | static /*@only@*/ ctbase | |
1027 | ctbase_copy (/*@notnull@*/ ctbase c) | |
1028 | { | |
1029 | switch (c->type) | |
1030 | { | |
1031 | case CT_UNKNOWN: | |
1032 | return (ctbase_createUnknown ()); | |
1033 | case CT_BOOL: | |
1034 | return (ctbase_createBool ()); | |
1035 | case CT_ENUM: | |
1036 | return (ctbase_createEnum (cstring_copy (c->contents.cenum->tag), | |
1037 | enumNameList_copy (c->contents.cenum->members))); | |
1038 | case CT_PRIM: | |
1039 | return (ctbase_createPrim (c->contents.prim)); | |
1040 | case CT_USER: | |
1041 | return (ctbase_createUser (c->contents.tid)); | |
1042 | case CT_ABST: | |
1043 | return (ctbase_createAbstract (c->contents.tid)); | |
1044 | case CT_EXPFCN: | |
1045 | return (ctbase_expectFunction (c->contents.base)); | |
1046 | case CT_PTR: | |
1047 | return (ctbase_makePointer (c->contents.base)); | |
1048 | case CT_ARRAY: | |
1049 | return (ctbase_makeArray (c->contents.base)); | |
1050 | case CT_FCN: | |
1051 | return (ctbase_makeLiveFunction (c->contents.fcn->rval, | |
1052 | uentryList_copy (c->contents.fcn->params))); | |
1053 | case CT_STRUCT: | |
1054 | return (ctbase_createStruct (cstring_copy (c->contents.su->name), | |
1055 | uentryList_copy (c->contents.su->fields))); | |
1056 | case CT_UNION: | |
1057 | return (ctbase_createUnion (cstring_copy (c->contents.su->name), | |
1058 | uentryList_copy (c->contents.su->fields))); | |
1059 | case CT_CONJ: | |
1060 | /*@i@*/ return (c); /* not a real copy for conj's */ | |
1061 | default: | |
1062 | llbug (message ("ctbase_copy: %q", ctbase_unparse (c))); | |
1063 | } | |
1064 | ||
1065 | BADEXIT; | |
1066 | } | |
1067 | ||
1068 | static enumNameList | |
1069 | ctbase_elist (ctbase c) | |
1070 | { | |
1071 | llassert (ctbase_isDefined (c)); | |
1072 | llassert (c->type == CT_ENUM); | |
1073 | ||
1074 | return (c->contents.cenum->members); | |
1075 | } | |
1076 | ||
1077 | static void | |
1078 | ctbase_free (/*@only@*/ ctbase c) | |
1079 | { | |
1080 | if (c == ctbase_bool || c == ctbase_unknown) | |
1081 | { | |
1082 | /*@-mustfree@*/ return; /*@=mustfree@*/ | |
1083 | } | |
1084 | ||
1085 | --nctbases; | |
1086 | ||
1087 | ||
1088 | if (ctbase_isDefined (c)) | |
1089 | { | |
1090 | switch (c->type) | |
1091 | { | |
1092 | case CT_UNKNOWN: | |
1093 | sfree (c); | |
1094 | break; | |
1095 | case CT_PRIM: | |
1096 | sfree (c); | |
1097 | break; | |
1098 | case CT_ENUM: | |
1099 | sfree (c); | |
1100 | break; | |
1101 | case CT_ENUMLIST: | |
1102 | /* sfree list? */ | |
1103 | sfree (c); | |
1104 | break; | |
1105 | case CT_USER: | |
1106 | sfree (c); | |
1107 | break; | |
1108 | case CT_ABST: | |
1109 | sfree (c); | |
1110 | break; | |
1111 | case CT_PTR: | |
1112 | case CT_ARRAY: | |
1113 | sfree (c); | |
1114 | break; | |
1115 | case CT_FCN: | |
1116 | ||
1117 | if (c->contents.fcn->liveparams) | |
1118 | { | |
1119 | /* Because of liveparams, we know this can be released. */ | |
1120 | ||
1121 | /*@-dependenttrans@*/ /*@-unqualifiedtrans@*/ | |
1122 | uentryList_free (c->contents.fcn->params); | |
1123 | c->contents.fcn->params = NULL; | |
1124 | /*@=dependenttrans@*/ /*@=unqualifiedtrans@*/ | |
1125 | } | |
1126 | ||
1127 | sfree (c); | |
1128 | break; | |
1129 | case CT_STRUCT: | |
1130 | case CT_UNION: | |
1131 | cstring_free (c->contents.su->name); | |
1132 | uentryList_free (c->contents.su->fields); | |
1133 | sfree (c); | |
1134 | break; | |
1135 | case CT_CONJ: | |
1136 | /* Don't bree conj's, */ | |
1137 | break; | |
1138 | default: | |
1139 | sfree (c); | |
1140 | break; | |
1141 | } | |
1142 | } | |
1143 | } | |
1144 | ||
1145 | /* | |
1146 | ** c should be * <unknown> | |
1147 | */ | |
1148 | ||
1149 | static /*@only@*/ ctbase | |
1150 | ctbase_expectFunction (ctype c) | |
1151 | { | |
1152 | ctbase f = ctbase_new (); | |
1153 | ||
1154 | f->type = CT_EXPFCN; | |
1155 | f->contents.base = c; | |
1156 | ||
1157 | return (f); | |
1158 | } | |
1159 | ||
1160 | static bool | |
1161 | ctbase_genMatch (ctbase c1, ctbase c2, bool force, bool arg, bool def) | |
1162 | { | |
1163 | ctuid c1tid, c2tid; | |
1164 | ||
1165 | /* undefined types never match */ | |
1166 | ||
1167 | if (ctbase_isUndefined (c1) || ctbase_isUndefined (c2)) | |
1168 | return FALSE; | |
1169 | ||
1170 | /* abstract types match user types of same name */ | |
1171 | ||
1172 | c1 = ctbase_realType (c1); | |
1173 | c2 = ctbase_realType (c2); | |
1174 | ||
1175 | c1tid = c1->type; | |
1176 | c2tid = c2->type; | |
1177 | ||
1178 | if (c1tid == CT_CONJ) | |
1179 | { | |
1180 | return (ctbase_genMatch (ctype_getCtbase (c1->contents.conj->a), c2, | |
1181 | force, arg, def) | |
1182 | || ctbase_genMatch (ctype_getCtbase (c1->contents.conj->b), c2, | |
1183 | force, arg, def)); | |
1184 | } | |
1185 | ||
1186 | if (c2tid == CT_CONJ) | |
1187 | { | |
1188 | return (ctbase_genMatch (c1, ctype_getCtbase (c2->contents.conj->a), | |
1189 | force, arg, def) | |
1190 | || ctbase_genMatch (c1, ctype_getCtbase (c2->contents.conj->b), | |
1191 | force, arg, def)); | |
1192 | } | |
1193 | ||
1194 | /* | |
1195 | ** if the types don't match, there are some special cases... | |
1196 | */ | |
1197 | ||
1198 | if (c1tid != c2tid) | |
1199 | { | |
1200 | /* unknowns match anything */ | |
1201 | ||
1202 | if (c1tid == CT_UNKNOWN || c2tid == CT_UNKNOWN) | |
1203 | { | |
1204 | return TRUE; | |
1205 | } | |
1206 | ||
1207 | if (c1tid == CT_FIXEDARRAY | |
1208 | && (c2tid == CT_ARRAY || (!def && c2tid == CT_PTR))) | |
1209 | { | |
1210 | if (ctype_isVoid (c2->contents.base)) | |
1211 | { | |
1212 | return (context_getFlag (FLG_ABSTVOIDP) || | |
1213 | (!(ctype_isRealAbstract (c1->contents.farray->base)) && | |
1214 | !(ctype_isRealAbstract (c2->contents.base)))); | |
1215 | } | |
1216 | ||
1217 | return (ctbase_genMatch (ctype_getCtbase (c1->contents.farray->base), | |
1218 | ctype_getCtbase (c2->contents.base), | |
1219 | force, arg, def)); | |
1220 | } | |
1221 | ||
1222 | ||
1223 | if (c2tid == CT_FIXEDARRAY | |
1224 | && (c1tid == CT_ARRAY || (!def && c1tid == CT_PTR))) | |
1225 | { | |
1226 | if (ctype_isVoid (c1->contents.base)) | |
1227 | { | |
1228 | return (context_getFlag (FLG_ABSTVOIDP) || | |
1229 | (!(ctype_isRealAbstract (c2->contents.farray->base)) && | |
1230 | !(ctype_isRealAbstract (c1->contents.base)))); | |
1231 | } | |
1232 | ||
1233 | return (ctbase_genMatch (ctype_getCtbase (c1->contents.base), | |
1234 | ctype_getCtbase (c2->contents.farray->base), | |
1235 | force, arg, def)); | |
1236 | } | |
1237 | ||
1238 | /* in most cases, bool and int are matched if FLG_BOOLINT */ | |
1239 | ||
1240 | if ((c1tid == CT_BOOL | |
1241 | && (c2tid == CT_PRIM && cprim_isInt (c2->contents.prim))) || | |
1242 | (c2tid == CT_BOOL | |
1243 | && (c1tid == CT_PRIM && cprim_isInt (c1->contents.prim)))) | |
1244 | { | |
1245 | return (context_msgBoolInt ()); | |
1246 | } | |
1247 | ||
1248 | if ((c1tid == CT_ENUM | |
1249 | && (c2tid == CT_PRIM && cprim_isInt (c2->contents.prim))) || | |
1250 | (c2tid == CT_ENUM | |
1251 | && (c1tid == CT_PRIM && cprim_isInt (c1->contents.prim)))) | |
1252 | { | |
1253 | return (context_msgEnumInt ()); | |
1254 | } | |
1255 | ||
1256 | /* | |
1257 | ** arrays and pointers...yuk! | |
1258 | ** | |
1259 | ** Considered equivalent except in definitions. | |
1260 | ** (e.g., function parameters are equivalent) | |
1261 | ** | |
1262 | */ | |
1263 | ||
1264 | if (!def) | |
1265 | { | |
1266 | if (ctuid_isAP (c1tid) && ctuid_isAP (c2tid)) | |
1267 | { | |
1268 | c2tid = c1tid; | |
1269 | } | |
1270 | } | |
1271 | ||
1272 | /* | |
1273 | ** Function pointers can be removed. | |
1274 | ** | |
1275 | ** [function ..] is equivalent to [function ..] * | |
1276 | */ | |
1277 | ||
1278 | if (c1tid == CT_PTR && c2tid == CT_FCN) | |
1279 | { | |
1280 | if (ctype_isFunction (ctype_realType (c1->contents.base))) | |
1281 | { | |
1282 | c1 = ctbase_realType (ctype_getCtbaseSafe (c1->contents.base)); | |
1283 | c1tid = c1->type; | |
1284 | } | |
1285 | } | |
1286 | ||
1287 | if (c2tid == CT_PTR && c1tid == CT_FCN) | |
1288 | { | |
1289 | if (ctype_isFunction (ctype_realType (c2->contents.base))) | |
1290 | { | |
1291 | c2 = ctbase_realType (ctype_getCtbaseSafe (c2->contents.base)); | |
1292 | c2tid = c2->type; | |
1293 | } | |
1294 | } | |
1295 | ||
1296 | /* | |
1297 | ** we allow forward declarations to structures like, | |
1298 | ** | |
1299 | ** typedef struct _t *t; | |
1300 | ** | |
1301 | ** to allow, | |
1302 | ** struct _t * to match t | |
1303 | */ | |
1304 | ||
1305 | if (context_getFlag (FLG_FORWARDDECL)) | |
1306 | { | |
1307 | if (c1tid == CT_ABST || c1tid == CT_USER) | |
1308 | { | |
1309 | if (ctuid_isAP (c2tid)) | |
1310 | { | |
1311 | ctype ts = c2->contents.base; | |
1312 | ||
1313 | if (ctype_isUA (ts)) | |
1314 | { | |
1315 | typeId ttid = ctype_typeId (ts); | |
1316 | typeId ctid = c1->contents.tid ; | |
1317 | ||
1318 | if (usymtab_matchForwardStruct (ctid, ttid)) | |
1319 | { | |
1320 | return TRUE; | |
1321 | } | |
1322 | } | |
1323 | } | |
1324 | } | |
1325 | ||
1326 | if (c2tid == CT_ABST || c2tid == CT_USER) | |
1327 | { | |
1328 | if (ctuid_isAP (c1tid)) | |
1329 | { | |
1330 | ctype ts = c1->contents.base; | |
1331 | ||
1332 | if (ctype_isUA (ts)) | |
1333 | { | |
1334 | typeId ttid = ctype_typeId (ts); | |
1335 | typeId ctid = c2->contents.tid ; | |
1336 | ||
1337 | if (usymtab_matchForwardStruct (ctid, ttid)) | |
1338 | { | |
1339 | return TRUE; | |
1340 | } | |
1341 | } | |
1342 | } | |
1343 | } | |
1344 | } | |
1345 | } | |
1346 | ||
1347 | if (c1tid != c2tid) | |
1348 | return FALSE; | |
1349 | ||
1350 | switch (c1tid) | |
1351 | { | |
1352 | case CT_UNKNOWN: | |
1353 | return (TRUE); | |
1354 | case CT_PRIM: | |
1355 | return (cprim_closeEnough (c1->contents.prim, c2->contents.prim)); | |
1356 | case CT_BOOL: | |
1357 | return (TRUE); | |
1358 | case CT_ABST: | |
1359 | return (typeId_equal (c1->contents.tid, c2->contents.tid)); | |
1360 | case CT_USER: | |
1361 | return (typeId_equal (c1->contents.tid, c2->contents.tid)); | |
1362 | case CT_ENUM: | |
1363 | return (cstring_equal (c1->contents.cenum->tag, c2->contents.cenum->tag)); | |
1364 | case CT_PTR: | |
1365 | if (ctype_isVoid (c1->contents.base) | |
1366 | || (ctype_isVoid (c2->contents.base))) | |
1367 | { | |
1368 | if (ctype_isFunction (ctype_realType (c1->contents.base)) | |
1369 | || ctype_isFunction (ctype_realType (c2->contents.base))) | |
1370 | { | |
1371 | return (!context_getFlag (FLG_CASTFCNPTR)); | |
1372 | } | |
1373 | else | |
1374 | { | |
1375 | return (context_getFlag (FLG_ABSTVOIDP) || | |
1376 | (!(ctype_isRealAbstract (c1->contents.base)) && | |
1377 | !(ctype_isRealAbstract (c2->contents.base)))); | |
1378 | } | |
1379 | } | |
1380 | else | |
1381 | { | |
1382 | /* Only allow one implicit function pointer. */ | |
1383 | ||
1384 | if (!bool_equal (ctype_isRealPointer (c1->contents.base), | |
1385 | ctype_isRealPointer (c2->contents.base)) | |
1386 | && (ctype_isRealFunction (c1->contents.base) | |
1387 | || ctype_isRealFunction (c2->contents.base))) | |
1388 | { | |
1389 | return FALSE; | |
1390 | } | |
1391 | ||
1392 | return (ctype_genMatch (c1->contents.base, | |
1393 | c2->contents.base, force, arg, def)); | |
1394 | } | |
1395 | case CT_FIXEDARRAY: | |
1396 | if (ctype_isVoid (c1->contents.farray->base) | |
1397 | || ctype_isVoid (c2->contents.farray->base)) | |
1398 | return TRUE; | |
1399 | return (ctype_genMatch (c1->contents.farray->base, | |
1400 | c2->contents.farray->base, | |
1401 | force, arg, def)); | |
1402 | case CT_ARRAY: | |
1403 | if (ctype_isVoid (c1->contents.base) || ctype_isVoid (c2->contents.base)) | |
1404 | return TRUE; | |
1405 | return (ctype_genMatch (c1->contents.base, c2->contents.base, force, arg, def)); | |
1406 | case CT_FCN: | |
1407 | return (ctype_genMatch (c1->contents.fcn->rval, | |
1408 | c2->contents.fcn->rval, | |
1409 | force, arg, def) | |
1410 | && uentryList_matchParams (c1->contents.fcn->params, | |
1411 | c2->contents.fcn->params, | |
1412 | force, TRUE)); | |
1413 | case CT_STRUCT: | |
1414 | case CT_UNION: | |
1415 | if (!cstring_isEmpty (c1->contents.su->name)) | |
1416 | { | |
1417 | return (cstring_equal (c1->contents.su->name, c2->contents.su->name)); | |
1418 | } | |
1419 | else | |
1420 | { | |
1421 | if (!cstring_isEmpty (c2->contents.su->name)) | |
1422 | { | |
1423 | return FALSE; | |
1424 | } | |
1425 | ||
1426 | llcontbuglit ("ctbase_genMatch: match fields"); | |
1427 | return (FALSE); | |
1428 | } | |
1429 | default: | |
1430 | llcontbug (message ("ctbase_genMatch: unknown type: %d\n", (int)c1tid)); | |
1431 | return (FALSE); | |
1432 | } | |
1433 | } | |
1434 | ||
1435 | /* | |
1436 | ** like ctbase_match, except for conjuncts: | |
1437 | ** modifies conjuncts to match only | |
1438 | */ | |
1439 | ||
1440 | static bool | |
1441 | ctbase_forceMatch (ctbase c1, ctbase c2) | |
1442 | { | |
1443 | /* | |
1444 | ** modifies c1, c2 | |
1445 | */ | |
1446 | ||
1447 | return (ctbase_genMatch (c1, c2, TRUE, FALSE, FALSE)); | |
1448 | } | |
1449 | ||
1450 | static bool | |
1451 | ctbase_match (ctbase c1, ctbase c2) /*@modifies nothing@*/ | |
1452 | { | |
1453 | return (ctbase_genMatch (c1, c2, FALSE, FALSE, FALSE)); | |
1454 | } | |
1455 | ||
1456 | static bool | |
1457 | ctbase_matchDef (ctbase c1, ctbase c2) /*@modifies nothing@*/ | |
1458 | { | |
1459 | return (ctbase_genMatch (c1, c2, FALSE, FALSE, TRUE)); | |
1460 | } | |
1461 | ||
1462 | static bool | |
1463 | ctbase_matchArg (ctbase c1, ctbase c2) | |
1464 | { | |
1465 | return (ctbase_genMatch (c1, c2, FALSE, TRUE, FALSE)); | |
1466 | } | |
1467 | ||
1468 | static /*@out@*/ /*@only@*/ /*@notnull@*/ ctbase | |
1469 | ctbase_new () | |
1470 | { | |
1471 | ctbase c = (ctbase) dmalloc (sizeof (*c)); | |
1472 | ||
1473 | nctbases++; | |
1474 | /* | |
1475 | if (nctbases % 100 == 0 && nctbases > lastnc) | |
1476 | { | |
1477 | llmsg (message ("ctbases: %d", nctbases)); | |
1478 | lastnc = nctbases; | |
1479 | } | |
1480 | */ | |
1481 | return (c); | |
1482 | } | |
1483 | ||
1484 | static /*@only@*/ ctbase | |
1485 | ctbase_createPrim (cprim p) | |
1486 | { | |
1487 | ctbase c = ctbase_new (); | |
1488 | ||
1489 | c->type = CT_PRIM; | |
1490 | c->contents.prim = p; | |
1491 | ||
1492 | return (c); | |
1493 | } | |
1494 | ||
1495 | static /*@observer@*/ ctbase | |
1496 | ctbase_getBool (void) | |
1497 | { | |
1498 | /*@i@*/ return ctbase_createBool (); | |
1499 | } | |
1500 | ||
1501 | static ctbase | |
1502 | ctbase_createBool () | |
1503 | { | |
1504 | if (!ctbase_isDefined (ctbase_bool)) | |
1505 | { | |
1506 | ctbase_bool = ctbase_new (); | |
1507 | ctbase_bool->type = CT_BOOL; | |
1508 | ctbase_bool->contents.prim = CTX_BOOL; | |
1509 | } | |
1510 | ||
1511 | /*@-retalias@*/ /*@-globstate@*/ | |
1512 | return ctbase_bool; | |
1513 | /*@=retalias@*/ /*@=globstate@*/ | |
1514 | } | |
1515 | ||
1516 | static /*@only@*/ ctbase | |
1517 | ctbase_createUser (typeId u) | |
1518 | { | |
1519 | ctbase c = ctbase_new (); | |
1520 | ||
1521 | c->type = CT_USER; | |
1522 | c->contents.tid = u; | |
1523 | ||
1524 | llassert (typeId_isValid (u)); | |
1525 | ||
1526 | return (c); | |
1527 | } | |
1528 | ||
1529 | static /*@only@*/ ctbase | |
1530 | ctbase_createEnum (/*@keep@*/ cstring etag, /*@keep@*/ enumNameList emembers) | |
1531 | { | |
1532 | ctbase c = ctbase_new (); | |
1533 | ||
1534 | c->type = CT_ENUM; | |
1535 | ||
1536 | if (cstring_isUndefined (etag)) | |
1537 | { | |
1538 | llcontbuglit ("Undefined enum tag!"); | |
1539 | etag = fakeTag (); | |
1540 | } | |
1541 | ||
1542 | c->contents.cenum = (tenum) dmalloc (sizeof (*c->contents.cenum)); | |
1543 | c->contents.cenum->tag = etag; | |
1544 | c->contents.cenum->members = emembers; | |
1545 | ||
1546 | return (c); | |
1547 | } | |
1548 | ||
1549 | static /*@observer@*/ cstring | |
1550 | ctbase_enumTag (/*@notnull@*/ ctbase ct) | |
1551 | { | |
1552 | return (ct->contents.cenum->tag); | |
1553 | } | |
1554 | ||
1555 | static /*@only@*/ ctbase | |
1556 | ctbase_createAbstract (typeId u) | |
1557 | { | |
1558 | ctbase c = ctbase_new (); | |
1559 | ||
1560 | c->type = CT_ABST; | |
1561 | c->contents.tid = u; | |
1562 | ||
1563 | /* also check its abstract? */ | |
1564 | ||
1565 | llassert (typeId_isValid (c->contents.tid)); | |
1566 | ||
1567 | return (c); | |
1568 | } | |
1569 | ||
1570 | static /*@only@*/ ctbase | |
1571 | ctbase_createUnknown (void) | |
1572 | { | |
1573 | if (!ctbase_isDefined (ctbase_unknown)) | |
1574 | { | |
1575 | ctbase_unknown = ctbase_new (); | |
1576 | ctbase_unknown->type = CT_UNKNOWN; | |
1577 | ctbase_unknown->contents.prim = CTX_UNKNOWN; | |
1578 | } | |
1579 | ||
1580 | /*@-retalias@*/ /*@-globstate@*/ | |
1581 | return ctbase_unknown; | |
1582 | /*@=retalias@*/ /*@=globstate@*/ | |
1583 | } | |
1584 | ||
1585 | /* | |
1586 | ** requires: result is not assigned to b | |
1587 | ** (should copy, but no way to reclaim storage) | |
1588 | */ | |
1589 | ||
1590 | static /*@only@*/ ctbase | |
1591 | ctbase_makePointer (ctype b) | |
1592 | { | |
1593 | ctbase c = ctbase_new (); | |
1594 | ||
1595 | c->type = CT_PTR; | |
1596 | c->contents.base = b; | |
1597 | ||
1598 | return (c); | |
1599 | } | |
1600 | ||
1601 | static /*@only@*/ ctbase | |
1602 | ctbase_makeArray (ctype b) | |
1603 | { | |
1604 | ctbase c = ctbase_new (); | |
1605 | ||
1606 | c->type = CT_ARRAY; | |
1607 | c->contents.base = b; | |
1608 | ||
1609 | return (c); | |
1610 | } | |
1611 | ||
1612 | static /*@notnull@*/ /*@only@*/ ctbase | |
1613 | ctbase_makeFixedArray (ctype b, long size) | |
1614 | { | |
1615 | ctbase c = ctbase_new (); | |
1616 | ||
1617 | c->type = CT_FIXEDARRAY; | |
1618 | ||
1619 | c->contents.farray = (tfixed) dmalloc (sizeof (*c->contents.farray)); | |
1620 | c->contents.farray->base = b; | |
1621 | c->contents.farray->size = size; | |
1622 | ||
1623 | return (c); | |
1624 | } | |
1625 | ||
1626 | static ctype | |
1627 | ctbase_makeFunction (ctype b, /*@only@*/ uentryList p) | |
1628 | { | |
1629 | ctbase c = ctbase_new (); | |
1630 | ctype ct; | |
1631 | ||
1632 | c->type = CT_FCN; | |
1633 | c->contents.fcn = (cfcn) dmalloc (sizeof (*c->contents.fcn)); | |
1634 | ||
1635 | if (ctype_isFunction (b)) /* was: && ctype_isPointer (b)) */ | |
1636 | { | |
1637 | ctbase ctb; | |
1638 | ctype rval; | |
1639 | ||
1640 | if (ctype_isPointer (b)) | |
1641 | { | |
1642 | ctb = ctype_getCtbase (ctype_baseArrayPtr (b)); | |
1643 | } | |
1644 | else | |
1645 | { | |
1646 | ctb = ctype_getCtbase (b); | |
1647 | } | |
1648 | ||
1649 | llassert (ctbase_isDefined (ctb)); | |
1650 | llassert (ctb->type == CT_FCN); | |
1651 | ||
1652 | rval = ctype_makeFunction (ctb->contents.fcn->rval, p); | |
1653 | ||
1654 | c->contents.fcn->rval = rval; | |
1655 | c->contents.fcn->params = ctb->contents.fcn->params; | |
1656 | c->contents.fcn->liveparams = FALSE; | |
1657 | } | |
1658 | else | |
1659 | { | |
1660 | c->contents.fcn->rval = b; | |
1661 | /*@i@*/ c->contents.fcn->params = p; | |
1662 | c->contents.fcn->liveparams = TRUE; | |
1663 | /*@-branchstate@*/ /* p is really released on this branch */ | |
1664 | } | |
1665 | /*@=branchstate@*/ | |
1666 | ||
1667 | ct = cttable_addComplex (c); | |
1668 | return (ct); /* was: ctype_makePointer (ct)); */ | |
1669 | } | |
1670 | ||
1671 | static ctype | |
1672 | ctbase_makeNFFunction (ctype b, /*@only@*/ uentryList p) | |
1673 | { | |
1674 | ctbase c = ctbase_new (); | |
1675 | ctype ct; | |
1676 | ||
1677 | c->type = CT_FCN; | |
1678 | c->contents.fcn = (cfcn) dmalloc (sizeof (*c->contents.fcn)); | |
1679 | ||
1680 | if (ctype_isFunction (b)) /* was && ctype_isPointer (b)) */ | |
1681 | { | |
1682 | ctbase ctb; | |
1683 | ctype rval; | |
1684 | ||
1685 | if (ctype_isPointer (b)) | |
1686 | { | |
1687 | ctb = ctype_getCtbase (ctype_baseArrayPtr (b)); | |
1688 | } | |
1689 | else | |
1690 | { | |
1691 | ctb = ctype_getCtbase (b); | |
1692 | } | |
1693 | ||
1694 | llassert (ctbase_isDefined (ctb)); | |
1695 | llassert (ctb->type == CT_FCN); | |
1696 | ||
1697 | rval = ctype_makeNFParamsFunction (ctb->contents.fcn->rval, p); | |
1698 | ||
1699 | c->contents.fcn->rval = rval; | |
1700 | c->contents.fcn->params = ctb->contents.fcn->params; | |
1701 | c->contents.fcn->liveparams = FALSE; | |
1702 | } | |
1703 | else | |
1704 | { | |
1705 | c->contents.fcn->rval = b; | |
1706 | /*@i@*/ c->contents.fcn->params = p; | |
1707 | c->contents.fcn->liveparams = TRUE; | |
1708 | ||
1709 | /*@-branchstate@*/ | |
1710 | } | |
1711 | /*@=branchstate@*/ | |
1712 | ||
1713 | ct = cttable_addComplex (c); | |
1714 | return (ct); /* was: ctype_makePointer (ct)); */ | |
1715 | } | |
1716 | ||
1717 | static /*@only@*/ ctbase | |
1718 | ctbase_makeLiveFunction (ctype b, /*@owned@*/ uentryList p) | |
1719 | { | |
1720 | ctbase c = ctbase_new (); | |
1721 | ||
1722 | c->type = CT_FCN; | |
1723 | ||
1724 | c->contents.fcn = (cfcn) dmalloc (sizeof (*c->contents.fcn)); | |
1725 | c->contents.fcn->rval = b; | |
1726 | c->contents.fcn->params = p; | |
1727 | c->contents.fcn->liveparams = TRUE; | |
1728 | ||
1729 | /*@-mustfree@*/ return (c); /*@=mustfree@*/ | |
1730 | } | |
1731 | ||
1732 | static /*@only@*/ ctbase | |
1733 | ctbase_makeRealFunction (ctype b, /*@dependent@*/ uentryList p) | |
1734 | { | |
1735 | ctbase c = ctbase_new (); | |
1736 | ||
1737 | c->type = CT_FCN; | |
1738 | ||
1739 | c->contents.fcn = (cfcn) dmalloc (sizeof (*c->contents.fcn)); | |
1740 | c->contents.fcn->rval = b; | |
1741 | c->contents.fcn->params = p; | |
1742 | c->contents.fcn->liveparams = FALSE; | |
1743 | ||
1744 | return (c); | |
1745 | } | |
1746 | ||
1747 | static /*@observer@*/ /*@notnull@*/ ctbase | |
1748 | ctbase_realFunction (/*@dependent@*/ /*@notnull@*/ ctbase c) | |
1749 | { | |
1750 | ctbase res; | |
1751 | ||
1752 | if (c->type == CT_FCN) | |
1753 | { | |
1754 | return c; | |
1755 | } | |
1756 | ||
1757 | llassert (ctbase_isFunction (c)); | |
1758 | ||
1759 | res = ctype_getCtbase (c->contents.base); | |
1760 | ||
1761 | llassert (ctbase_isDefined (res)); | |
1762 | ||
1763 | return (res); | |
1764 | } | |
1765 | ||
1766 | static bool | |
1767 | ctbase_isFunction (ctbase c) | |
1768 | { | |
1769 | llassert (c != ctbase_undefined); | |
1770 | ||
1771 | if (c->type == CT_FCN) | |
1772 | { | |
1773 | return TRUE; | |
1774 | } | |
1775 | else | |
1776 | { | |
1777 | if (c->type == CT_PTR) | |
1778 | { | |
1779 | ctbase fcn = ctype_getCtbase (ctbase_baseArrayPtr (c)); | |
1780 | ||
1781 | return (ctbase_isDefined (fcn) && fcn->type == CT_FCN); | |
1782 | } | |
1783 | ||
1784 | return FALSE; | |
1785 | } | |
1786 | } | |
1787 | ||
1788 | /* doesn't copy c1 and c2 */ | |
1789 | ||
1790 | static /*@only@*/ ctbase | |
1791 | ctbase_makeConj (ctype c1, ctype c2, bool isExplicit) | |
1792 | { | |
1793 | ctbase c = ctbase_new (); | |
1794 | ||
1795 | c->type = CT_CONJ; | |
1796 | ||
1797 | c->contents.conj = (tconj) dmalloc (sizeof (*c->contents.conj)); | |
1798 | c->contents.conj->a = c1; | |
1799 | c->contents.conj->b = c2; | |
1800 | c->contents.conj->isExplicit = isExplicit; | |
1801 | ||
1802 | return (c); | |
1803 | } | |
1804 | ||
1805 | static ctype | |
1806 | ctbase_getConjA (/*@notnull@*/ ctbase c) | |
1807 | { | |
1808 | llassert (c->type == CT_CONJ); | |
1809 | return (c->contents.conj->a); | |
1810 | } | |
1811 | ||
1812 | static ctype | |
1813 | ctbase_getConjB (/*@notnull@*/ ctbase c) | |
1814 | { | |
1815 | llassert (c->type == CT_CONJ); | |
1816 | return (c->contents.conj->b); | |
1817 | } | |
1818 | ||
1819 | static bool | |
1820 | ctbase_isExplicitConj (/*@notnull@*/ ctbase c) | |
1821 | { | |
1822 | llassert (c->type == CT_CONJ); | |
1823 | return (c->contents.conj->isExplicit); | |
1824 | } | |
1825 | ||
1826 | static /*@only@*/ ctbase | |
1827 | ctbase_createStruct (/*@only@*/ cstring n, /*@only@*/ uentryList f) | |
1828 | { | |
1829 | ctbase c = ctbase_new (); | |
1830 | ||
1831 | c->type = CT_STRUCT; | |
1832 | ||
1833 | c->contents.su = (tsu) dmalloc (sizeof (*c->contents.su)); | |
1834 | c->contents.su->name = n; | |
1835 | c->contents.su->fields = f; | |
1836 | ||
1837 | return (c); | |
1838 | } | |
1839 | ||
1840 | static /*@observer@*/ uentryList | |
1841 | ctbase_getuentryList (/*@notnull@*/ ctbase c) | |
1842 | { | |
1843 | c = ctbase_realType (c); | |
1844 | ||
1845 | if (!(c->type == CT_STRUCT || c->type == CT_UNION)) | |
1846 | llfatalbug (message ("ctbase_getuentryList: bad invocation: %q", ctbase_unparse (c))); | |
1847 | ||
1848 | return (c->contents.su->fields); | |
1849 | } | |
1850 | ||
1851 | static ctbase | |
1852 | ctbase_createUnion (/*@keep@*/ cstring n, /*@only@*/ uentryList f) | |
1853 | { | |
1854 | ctbase c = ctbase_new (); | |
1855 | ||
1856 | c->type = CT_UNION; | |
1857 | ||
1858 | c->contents.su = (tsu) dmalloc (sizeof (*c->contents.su)); | |
1859 | c->contents.su->name = n; | |
1860 | c->contents.su->fields = f; | |
1861 | ||
1862 | return (c); | |
1863 | } | |
1864 | ||
1865 | static ctype | |
1866 | ctbase_baseArrayPtr (/*@notnull@*/ ctbase c) | |
1867 | { | |
1868 | ctuid ct; | |
1869 | c = ctbase_realType (c); | |
1870 | ct = c->type; | |
1871 | ||
1872 | if (ct == CT_FIXEDARRAY) | |
1873 | { | |
1874 | return c->contents.farray->base; | |
1875 | } | |
1876 | else | |
1877 | { | |
1878 | llassert (ctuid_isAP (ct)); | |
1879 | ||
1880 | return c->contents.base; | |
1881 | } | |
1882 | } | |
1883 | ||
1884 | static ctype | |
1885 | ctbase_baseFunction (/*@notnull@*/ ctbase c) | |
1886 | { | |
1887 | ctbase_fixUser (c); | |
1888 | c = ctbase_realFunction (c); | |
1889 | ||
1890 | if (c->type != CT_FCN) | |
1891 | { | |
1892 | llfatalbug (message ("ctbase_baseFunction: bad call: %q", ctbase_unparse (c))); | |
1893 | } | |
1894 | ||
1895 | return (c->contents.fcn->rval); | |
1896 | } | |
1897 | ||
1898 | static uentryList | |
1899 | ctbase_argsFunction (/*@notnull@*/ ctbase c) | |
1900 | { | |
1901 | ctbase_fixUser (c); | |
1902 | c = ctbase_realFunction (c); | |
1903 | ||
1904 | if (c->type != CT_FCN) | |
1905 | { | |
1906 | llfatalbug (message ("ctbase_argsFunction: bad call: %q", | |
1907 | ctbase_unparse (c))); | |
1908 | } | |
1909 | return (c->contents.fcn->params); | |
1910 | } | |
1911 | ||
1912 | static bool | |
1913 | ctbase_baseisExpFcn (ctype c) | |
1914 | { | |
1915 | ctbase cb; | |
1916 | c = ctype_removePointers (c); | |
1917 | ||
1918 | cb = ctype_getCtbase (c); | |
1919 | llassert (ctbase_isDefined (cb)); | |
1920 | ||
1921 | if (cb->type == CT_FCN) | |
1922 | { | |
1923 | c = ctype_removePointers (ctype_returnValue (c)); | |
1924 | ||
1925 | cb = ctype_getCtbase (c); | |
1926 | llassert (ctbase_isDefined (cb)); | |
1927 | ||
1928 | return (cb->type == CT_EXPFCN); | |
1929 | } | |
1930 | return FALSE; | |
1931 | } | |
1932 | ||
1933 | /* | |
1934 | ** ctbase_newBase behaves specially when p is a CONJ: | |
1935 | ** | |
1936 | ** c -> conj (newBase (c, p.a), p.b) | |
1937 | */ | |
1938 | ||
1939 | static ctype | |
1940 | ctbase_newBase (ctype c, ctype p) | |
1941 | { | |
1942 | ctbase cb; | |
1943 | ||
1944 | DPRINTF (("New base: %s / %s", ctype_unparse (c), ctype_unparse (p))); | |
1945 | ||
1946 | cb = ctype_getCtbase (c); | |
1947 | ||
1948 | if (ctype_isUndefined (c)) | |
1949 | { | |
1950 | return p; | |
1951 | } | |
1952 | ||
1953 | if (ctype_isConj (p)) | |
1954 | { | |
1955 | ctbase pb = ctype_getCtbase (p); | |
1956 | ||
1957 | llassert (ctbase_isDefined (pb)); | |
1958 | ||
1959 | if (pb->contents.conj->isExplicit) | |
1960 | { | |
1961 | return (ctype_makeExplicitConj (ctype_newBase (c, pb->contents.conj->a), | |
1962 | pb->contents.conj->b)); | |
1963 | ||
1964 | } | |
1965 | else | |
1966 | { | |
1967 | return (ctype_makeConj (ctype_newBase (c, pb->contents.conj->a), | |
1968 | pb->contents.conj->b)); | |
1969 | ||
1970 | } | |
1971 | } | |
1972 | ||
1973 | if (ctbase_baseisExpFcn (c)) | |
1974 | { | |
1975 | return (ctbase_newBaseExpFcn (c, p)); | |
1976 | } | |
1977 | ||
1978 | llassert (ctbase_isDefined (cb)); | |
1979 | ||
1980 | switch (cb->type) | |
1981 | { | |
1982 | case CT_UNKNOWN: | |
1983 | case CT_PRIM: | |
1984 | case CT_USER: | |
1985 | case CT_ENUM: | |
1986 | case CT_ABST: | |
1987 | case CT_STRUCT: | |
1988 | case CT_UNION: | |
1989 | case CT_EXPFCN: | |
1990 | return (p); | |
1991 | ||
1992 | case CT_PTR: | |
1993 | { | |
1994 | ctype ret; | |
1995 | ctype cbn; | |
1996 | ||
1997 | cbn = ctbase_newBase (cb->contents.base, p); | |
1998 | ret = ctype_makePointer (cbn); | |
1999 | ||
2000 | return ret; | |
2001 | } | |
2002 | case CT_FIXEDARRAY: | |
2003 | return (ctype_makeFixedArray (ctbase_newBase (cb->contents.farray->base, p), | |
2004 | cb->contents.farray->size)); | |
2005 | case CT_ARRAY: | |
2006 | return (ctype_makeArray (ctbase_newBase (cb->contents.base, p))); | |
2007 | case CT_FCN: | |
2008 | return (ctype_makeRealFunction (ctbase_newBase (cb->contents.fcn->rval, p), | |
2009 | cb->contents.fcn->params)); | |
2010 | case CT_CONJ: | |
2011 | return (ctype_makeConjAux (ctbase_newBase (cb->contents.conj->a, p), | |
2012 | ctbase_newBase (cb->contents.conj->b, p), | |
2013 | cb->contents.conj->isExplicit)); | |
2014 | default: | |
2015 | llcontbug (message ("ctbase_newBase: bad ctbase: %q", ctbase_unparse (cb))); | |
2016 | return (p); | |
2017 | } | |
2018 | BADEXIT; | |
2019 | } | |
2020 | ||
2021 | static ctype | |
2022 | ctbase_newBaseExpFcn (ctype c, ctype p) | |
2023 | { | |
2024 | ctbase cb = ctype_getCtbase (c); | |
2025 | ctbase tcb; | |
2026 | ctype ret, tmpct; | |
2027 | ctype fp = ctype_unknown; | |
2028 | uentryList ctargs = ctype_argsFunction (c); | |
2029 | ||
2030 | /* | |
2031 | ** okay, this is really ugly... | |
2032 | ** | |
2033 | ** pointers inside <expf> mean pointers to the function; | |
2034 | ** pointers outside <expf> are pointers to the return value; | |
2035 | ** because its a function there is one superfluous pointer. | |
2036 | */ | |
2037 | ||
2038 | /* | |
2039 | ** bf is a ctype, used to derived structure of cb | |
2040 | */ | |
2041 | ||
2042 | if (!ctbase_isFunction (cb)) | |
2043 | llbuglit ("ctbase_newBaseExpFcn: expFcn -> not a function"); | |
2044 | ||
2045 | tmpct = ctype_getBaseType (ctype_returnValue (c)); | |
2046 | ||
2047 | /* | |
2048 | ** pointers before expfcn -> p are pointers to function, not result | |
2049 | ** | |
2050 | */ | |
2051 | ||
2052 | tcb = ctype_getCtbase (tmpct); | |
2053 | ||
2054 | llassert (ctbase_isDefined (tcb)); | |
2055 | tmpct = tcb->contents.base; | |
2056 | ||
2057 | /* | |
2058 | ** record pointers to base in fp | |
2059 | */ | |
2060 | ||
2061 | while (!ctype_isUnknown (tmpct)) | |
2062 | { | |
2063 | if (ctype_isExpFcn (tmpct)) { | |
2064 | ctbase ttcb = ctype_getCtbase (tmpct); | |
2065 | ||
2066 | /* | |
2067 | ** evs 2000-05-16: This is necessary to deal with function pointers in parens. | |
2068 | ** The whole function pointer parsing is a major kludge, but it seems to work, | |
2069 | ** and I'm only embarrassed by it when I haven't look at the C spec recently... | |
2070 | */ | |
2071 | ||
2072 | llassert (ctbase_isDefined (ttcb)); | |
2073 | tmpct = ttcb->contents.base; | |
2074 | llassert (!ctype_isUnknown (tmpct)); | |
2075 | } | |
2076 | ||
2077 | switch (ctype_getCtKind (tmpct)) | |
2078 | { | |
2079 | case CTK_PTR: | |
2080 | fp = ctype_makePointer (fp); | |
2081 | /*@switchbreak@*/ break; | |
2082 | case CTK_ARRAY: | |
2083 | fp = ctype_makeArray (fp); | |
2084 | /*@switchbreak@*/ break; | |
2085 | case CTK_COMPLEX: | |
2086 | { | |
2087 | ctbase fbase = ctype_getCtbase (tmpct); | |
2088 | ||
2089 | if (ctbase_isFunction (fbase)) | |
2090 | { | |
2091 | fp = ctype_makeFunction (fp, uentryList_copy (ctargs)); | |
2092 | ctargs = ctbase_argsFunction (fbase); | |
2093 | } | |
2094 | else | |
2095 | { | |
2096 | llbug | |
2097 | (message | |
2098 | ("ctbase_newBaseExpFcn: fixing expfunction: bad complex type: %s [base: %q]", | |
2099 | ctype_unparse (tmpct), ctbase_unparse (fbase))); | |
2100 | } | |
2101 | goto exitLoop; | |
2102 | } | |
2103 | default: | |
2104 | { | |
2105 | llcontbug | |
2106 | (message ("ctbase_newBaseExpFcn: fixing expfunction: bad type: %s", | |
2107 | ctype_unparse (tmpct))); | |
2108 | goto exitLoop; | |
2109 | } | |
2110 | } | |
2111 | tmpct = ctype_baseArrayPtr (tmpct); | |
2112 | } | |
2113 | ||
2114 | exitLoop: | |
2115 | tmpct = ctype_returnValue (c); | |
2116 | ||
2117 | /* | |
2118 | ** pointers to expf are pointers to return value | |
2119 | */ | |
2120 | ||
2121 | while (!ctype_isExpFcn (tmpct)) | |
2122 | { | |
2123 | switch (ctype_getCtKind (tmpct)) | |
2124 | { | |
2125 | case CTK_PTR: | |
2126 | p = ctype_makePointer (p); | |
2127 | /*@switchbreak@*/ break; | |
2128 | case CTK_ARRAY: | |
2129 | p = ctype_makeArray (p); | |
2130 | /*@switchbreak@*/ break; | |
2131 | case CTK_COMPLEX: | |
2132 | { | |
2133 | ctbase fbase = ctype_getCtbase (tmpct); | |
2134 | ||
2135 | if (ctbase_isFunction (fbase)) | |
2136 | { | |
2137 | p = ctype_makeFunction (p, uentryList_copy (ctbase_argsFunction (fbase))); | |
2138 | } | |
2139 | else | |
2140 | { | |
2141 | llbug | |
2142 | (message | |
2143 | ("ctbase_newBaseExpFcn: fixing expfunction: bad complex type: %s", | |
2144 | ctype_unparse (tmpct))); | |
2145 | } | |
2146 | goto exitLoop2; | |
2147 | } | |
2148 | ||
2149 | default: | |
2150 | { | |
2151 | llcontbug | |
2152 | (message ("ctbase_newBaseExpFcn: fixing expfunction2: bad type: %t", | |
2153 | tmpct)); | |
2154 | goto exitLoop2; | |
2155 | } | |
2156 | } | |
2157 | tmpct = ctype_baseArrayPtr (tmpct); | |
2158 | } | |
2159 | ||
2160 | exitLoop2: | |
2161 | ||
2162 | /* | |
2163 | ** pointers to fp are pointers to function type | |
2164 | */ | |
2165 | ||
2166 | ret = ctype_makeRealFunction (p, ctargs); | |
2167 | ||
2168 | while (ctype_getCtKind (fp) > CTK_PLAIN) | |
2169 | { | |
2170 | switch (ctype_getCtKind (fp)) | |
2171 | { | |
2172 | case CTK_PTR: | |
2173 | ret = ctype_makePointer (ret); | |
2174 | /*@switchbreak@*/ break; | |
2175 | case CTK_ARRAY: | |
2176 | ret = ctype_makeArray (ret); | |
2177 | /*@switchbreak@*/ break; | |
2178 | case CTK_COMPLEX: | |
2179 | { | |
2180 | ctbase fbase = ctype_getCtbase (fp); | |
2181 | ||
2182 | if (ctbase_isFunction (fbase)) | |
2183 | { | |
2184 | ret = | |
2185 | ctype_makeFunction (ret, | |
2186 | uentryList_copy (ctbase_argsFunction (fbase))); | |
2187 | } | |
2188 | else | |
2189 | { | |
2190 | BADBRANCH; | |
2191 | } | |
2192 | goto exitLoop3; | |
2193 | } | |
2194 | ||
2195 | default: | |
2196 | { | |
2197 | llcontbug (message ("post-fixing expfunction: bad type: %t", fp)); | |
2198 | goto exitLoop3; | |
2199 | } | |
2200 | } | |
2201 | fp = ctype_baseArrayPtr (fp); | |
2202 | } | |
2203 | ||
2204 | exitLoop3: | |
2205 | return (ret); | |
2206 | } | |
2207 | ||
2208 | /* | |
2209 | ** returns lowest level base of c: plain type | |
2210 | */ | |
2211 | ||
2212 | static /*@notnull@*/ /*@only@*/ ctbase | |
2213 | ctbase_getBaseType (/*@notnull@*/ ctbase c) | |
2214 | { | |
2215 | switch (c->type) | |
2216 | { | |
2217 | case CT_UNKNOWN: | |
2218 | case CT_PRIM: | |
2219 | case CT_USER: | |
2220 | case CT_ENUM: | |
2221 | case CT_ENUMLIST: | |
2222 | case CT_BOOL: | |
2223 | case CT_ABST: | |
2224 | case CT_FCN: | |
2225 | case CT_STRUCT: | |
2226 | case CT_UNION: | |
2227 | return (ctbase_copy (c)); | |
2228 | ||
2229 | case CT_PTR: | |
2230 | case CT_ARRAY: | |
2231 | return (ctbase_getBaseType (ctype_getCtbaseSafe (c->contents.base))); | |
2232 | ||
2233 | case CT_FIXEDARRAY: | |
2234 | return (ctbase_getBaseType (ctype_getCtbaseSafe (c->contents.farray->base))); | |
2235 | case CT_CONJ: /* base type of A conj branch? */ | |
2236 | return (ctbase_getBaseType (ctype_getCtbaseSafe (c->contents.conj->a))); | |
2237 | case CT_EXPFCN: | |
2238 | return (ctbase_copy (c)); | |
2239 | ||
2240 | default: | |
2241 | llfatalbug (message ("ctbase_getBaseType: bad ctbase: %q", ctbase_unparse (c))); | |
2242 | } | |
2243 | ||
2244 | BADEXIT; | |
2245 | } | |
2246 | ||
2247 | static int | |
2248 | ctbase_compare (ctbase c1, ctbase c2, bool strict) | |
2249 | { | |
2250 | ctuid c1tid, c2tid; | |
2251 | ||
2252 | if (ctbase_isUndefined (c1) || ctbase_isUndefined (c2)) | |
2253 | { | |
2254 | llcontbuglit ("ctbase_compare: undefined ctbase"); | |
2255 | return -1; | |
2256 | } | |
2257 | ||
2258 | c1tid = c1->type; | |
2259 | c2tid = c2->type; | |
2260 | ||
2261 | if (c1tid < c2tid) | |
2262 | return -1; | |
2263 | if (c1tid > c2tid) | |
2264 | return 1; | |
2265 | ||
2266 | switch (c1tid) | |
2267 | { | |
2268 | case CT_UNKNOWN: | |
2269 | return 0; | |
2270 | case CT_PRIM: | |
2271 | return (int_compare (c1->contents.prim, c2->contents.prim)); | |
2272 | case CT_BOOL: | |
2273 | return 0; | |
2274 | case CT_USER: | |
2275 | return (int_compare (c1->contents.tid, c2->contents.tid)); | |
2276 | case CT_ENUMLIST: | |
2277 | return 1; | |
2278 | case CT_ENUM: /* for now, keep like abstract */ | |
2279 | case CT_ABST: | |
2280 | return (int_compare (c1->contents.tid, c2->contents.tid)); | |
2281 | case CT_PTR: | |
2282 | return (ctype_compare (c1->contents.base, c2->contents.base)); | |
2283 | case CT_FIXEDARRAY: | |
2284 | INTCOMPARERETURN (c1->contents.farray->size, c2->contents.farray->size); | |
2285 | ||
2286 | return (ctype_compare (c1->contents.farray->base, | |
2287 | c2->contents.farray->base)); | |
2288 | case CT_ARRAY: | |
2289 | return (ctype_compare (c1->contents.base, c2->contents.base)); | |
2290 | case CT_FCN: | |
2291 | { | |
2292 | COMPARERETURN (ctype_compare (c1->contents.fcn->rval, c2->contents.fcn->rval)); | |
2293 | ||
2294 | if (strict) | |
2295 | { | |
2296 | return (uentryList_compareStrict (c1->contents.fcn->params, | |
2297 | c2->contents.fcn->params)); | |
2298 | } | |
2299 | else | |
2300 | { | |
2301 | return (uentryList_compareParams (c1->contents.fcn->params, | |
2302 | c2->contents.fcn->params)); | |
2303 | } | |
2304 | } | |
2305 | case CT_EXPFCN: | |
2306 | return (ctype_compare (c1->contents.base, c2->contents.base)); | |
2307 | case CT_STRUCT: | |
2308 | case CT_UNION: | |
2309 | return (uentryList_compareFields (c1->contents.su->fields, | |
2310 | c2->contents.su->fields)); | |
2311 | case CT_CONJ: | |
2312 | { | |
2313 | COMPARERETURN (ctype_compare (c1->contents.conj->a, | |
2314 | c2->contents.conj->a)); | |
2315 | COMPARERETURN (ctype_compare (c1->contents.conj->b, | |
2316 | c2->contents.conj->b)); | |
2317 | return (bool_compare (c1->contents.conj->isExplicit, | |
2318 | c2->contents.conj->isExplicit)); | |
2319 | } | |
2320 | } | |
2321 | BADEXIT; | |
2322 | } | |
2323 | ||
2324 | static int | |
2325 | ctbase_compareStrict (/*@notnull@*/ ctbase c1, /*@notnull@*/ ctbase c2) | |
2326 | { | |
2327 | return (ctbase_compare (c1, c2, TRUE)); | |
2328 | } | |
2329 | ||
2330 | static bool ctbase_equivStrict (/*@notnull@*/ ctbase c1, /*@notnull@*/ ctbase c2) | |
2331 | { | |
2332 | return (ctbase_compareStrict (c1,c2) == 0); | |
2333 | } | |
2334 | ||
2335 | static bool ctbase_equiv (/*@notnull@*/ ctbase c1, /*@notnull@*/ ctbase c2) | |
2336 | { | |
2337 | return (ctbase_compare (c1, c2, FALSE) == 0); | |
2338 | } | |
2339 | ||
2340 | static bool | |
2341 | ctbase_isKind (/*@notnull@*/ ctbase c, ctuid kind) | |
2342 | { | |
2343 | ctuid ck = c->type; | |
2344 | ||
2345 | if (ck == kind) | |
2346 | return TRUE; | |
2347 | ||
2348 | if (ck == CT_CONJ) | |
2349 | return (ctbase_isKind (ctype_getCtbaseSafe (c->contents.conj->a), kind) || | |
2350 | ctbase_isKind (ctype_getCtbaseSafe (c->contents.conj->b), kind)); | |
2351 | ||
2352 | return FALSE; | |
2353 | } | |
2354 | ||
2355 | static bool | |
2356 | ctbase_isKind2 (/*@notnull@*/ ctbase c, ctuid kind1, ctuid kind2) | |
2357 | { | |
2358 | ctuid ck = c->type; | |
2359 | ||
2360 | if (ck == kind1 || ck == kind2) | |
2361 | return TRUE; | |
2362 | ||
2363 | if (ck == CT_CONJ) | |
2364 | return (ctbase_isKind2 (ctype_getCtbaseSafe (c->contents.conj->a), kind1, kind2) || | |
2365 | ctbase_isKind2 (ctype_getCtbaseSafe (c->contents.conj->b), kind1, kind2)); | |
2366 | ||
2367 | return FALSE; | |
2368 | } | |
2369 | ||
2370 | static bool | |
2371 | ctbase_isAbstract (/*@notnull@*/ ctbase c) | |
2372 | { | |
2373 | return (c->type == CT_ABST); | |
2374 | } | |
2375 | ||
2376 | static bool ctbase_isUA (ctbase c) | |
2377 | { | |
2378 | return (ctbase_isDefined (c) && ((c)->type == CT_USER || (c)->type == CT_ABST)); | |
2379 | } | |
2380 | ||
2381 | static bool | |
2382 | ctbase_almostEqual (ctbase c1, ctbase c2) | |
2383 | { | |
2384 | ctuid c1tid, c2tid; | |
2385 | ||
2386 | /* undefined types never match */ | |
2387 | ||
2388 | if (ctbase_isUndefined (c1) || ctbase_isUndefined (c2)) | |
2389 | return FALSE; | |
2390 | ||
2391 | c1tid = c1->type; | |
2392 | c2tid = c2->type; | |
2393 | ||
2394 | if (c1tid == CT_FIXEDARRAY && c2tid == CT_ARRAY) | |
2395 | { | |
2396 | return (ctbase_almostEqual (ctype_getCtbase (c1->contents.farray->base), | |
2397 | ctype_getCtbase (c2->contents.base))); | |
2398 | } | |
2399 | ||
2400 | if (c2tid == CT_FIXEDARRAY && c1tid == CT_ARRAY) | |
2401 | { | |
2402 | return (ctbase_almostEqual (ctype_getCtbase (c1->contents.base), | |
2403 | ctype_getCtbase (c2->contents.farray->base))); | |
2404 | } | |
2405 | ||
2406 | if (c1tid != c2tid) | |
2407 | return FALSE; | |
2408 | ||
2409 | switch (c1tid) | |
2410 | { | |
2411 | case CT_UNKNOWN: | |
2412 | return TRUE; | |
2413 | case CT_PRIM: | |
2414 | return (cprim_equal (c1->contents.prim, c2->contents.prim)); | |
2415 | case CT_BOOL: | |
2416 | return TRUE; | |
2417 | case CT_ABST: | |
2418 | return (typeId_equal (c1->contents.tid, c2->contents.tid)); | |
2419 | case CT_USER: | |
2420 | return (typeId_equal (c1->contents.tid, c2->contents.tid)); | |
2421 | case CT_ENUM: | |
2422 | return (cstring_equal (c1->contents.cenum->tag, c2->contents.cenum->tag)); | |
2423 | case CT_PTR: | |
2424 | return (ctype_almostEqual (c1->contents.base, c2->contents.base)); | |
2425 | case CT_FIXEDARRAY: | |
2426 | return (ctype_almostEqual (c1->contents.farray->base, | |
2427 | c2->contents.farray->base)); | |
2428 | case CT_ARRAY: | |
2429 | return (ctype_almostEqual (c1->contents.base, c2->contents.base)); | |
2430 | case CT_FCN: | |
2431 | return (ctype_almostEqual (c1->contents.fcn->rval, c2->contents.fcn->rval) | |
2432 | && uentryList_matchParams (c1->contents.fcn->params, | |
2433 | c2->contents.fcn->params, FALSE, TRUE)); | |
2434 | case CT_STRUCT: | |
2435 | case CT_UNION: | |
2436 | if (!cstring_isEmpty (c1->contents.su->name)) | |
2437 | { | |
2438 | return (cstring_equal (c1->contents.su->name, c2->contents.su->name)); | |
2439 | } | |
2440 | else | |
2441 | { | |
2442 | if (!cstring_isEmpty (c2->contents.su->name)) | |
2443 | { | |
2444 | return FALSE; | |
2445 | } | |
2446 | ||
2447 | llcontbuglit ("ctbase_almostEqual: match fields"); | |
2448 | return (FALSE); | |
2449 | } | |
2450 | default: | |
2451 | llcontbug (message ("ctbase_almostEqual: unknown type: %d\n", (int)c1tid)); | |
2452 | return (FALSE); | |
2453 | } | |
2454 | } |