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616915dd | 1 | /* |
2 | ** LCLint - annotation-assisted static program checker | |
28bf4b0b | 3 | ** Copyright (C) 1994-2001 University of Virginia, |
616915dd | 4 | ** Massachusetts Institute of Technology |
5 | ** | |
6 | ** This program is free software; you can redistribute it and/or modify it | |
7 | ** under the terms of the GNU General Public License as published by the | |
8 | ** Free Software Foundation; either version 2 of the License, or (at your | |
9 | ** option) any later version. | |
10 | ** | |
11 | ** This program is distributed in the hope that it will be useful, but | |
12 | ** WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | ** General Public License for more details. | |
15 | ** | |
16 | ** The GNU General Public License is available from http://www.gnu.org/ or | |
17 | ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | ** MA 02111-1307, USA. | |
19 | ** | |
20 | ** For information on lclint: lclint-request@cs.virginia.edu | |
21 | ** To report a bug: lclint-bug@cs.virginia.edu | |
22 | ** For more information: http://lclint.cs.virginia.edu | |
23 | */ | |
24 | /* | |
25 | ** ctype.c | |
26 | ** | |
27 | ** This files implements three types: ctentry, cttable and ctype. | |
28 | ** They should probably be separated soon. | |
29 | */ | |
30 | ||
31 | # include "lclintMacros.nf" | |
32 | # include "basic.h" | |
33 | # include "structNames.h" | |
34 | ||
35 | static void ctype_recordConj (ctype p_c); | |
36 | ||
37 | ||
38 | /* | |
39 | ** ctbase file | |
40 | */ | |
41 | ||
42 | # include "ctbase.i" | |
43 | ||
44 | /* | |
45 | ** ctype table | |
46 | */ | |
47 | ||
48 | # include "cttable.i" | |
49 | ||
50 | static ctype ctype_getConjA (ctype p_c) /*@*/ ; | |
51 | static ctype ctype_getConjB (ctype p_c) /*@*/ ; | |
52 | ||
53 | static bool ctype_isComplex (ctype c) | |
54 | { | |
55 | return (ctentry_isComplex (ctype_getCtentry(c))); | |
56 | } | |
57 | ||
58 | static bool ctype_isPlain (ctype c) | |
59 | { | |
60 | return (ctentry_isPlain (ctype_getCtentry(c))); | |
61 | } | |
62 | ||
63 | static bool ctype_isBroken (ctype c) | |
64 | { | |
65 | /*@+enumint@*/ | |
66 | if (c == CTK_DNE || c == CTK_INVALID || c == CTK_UNKNOWN) | |
67 | { | |
68 | /*@-enumint@*/ | |
69 | return TRUE; | |
70 | } | |
71 | else | |
72 | { | |
73 | ctentry cte = ctype_getCtentry (c); | |
74 | ||
75 | return (ctentry_isBogus (cte)); | |
76 | } | |
77 | } | |
78 | ||
79 | ctkind | |
80 | ctkind_fromInt (int i) | |
81 | { | |
82 | /*@+enumint@*/ | |
83 | if (i < CTK_UNKNOWN || i > CTK_COMPLEX) | |
84 | { | |
85 | llcontbug (message ("ctkind_fromInt: out of range: %d", i)); | |
86 | return CTK_INVALID; | |
87 | } | |
88 | return (ctkind) i; | |
89 | /*@=enumint@*/ | |
90 | } | |
91 | ||
92 | /* | |
93 | ** ctype functions | |
94 | */ | |
95 | ||
96 | void | |
97 | ctype_initTable () | |
98 | { | |
99 | cttable_init (); | |
100 | } | |
101 | ||
102 | void | |
103 | ctype_destroyMod () | |
104 | { | |
105 | cttable_reset (); | |
106 | } | |
107 | ||
108 | void | |
109 | ctype_loadTable (FILE *f) | |
110 | { | |
28bf4b0b | 111 | DPRINTF (("Loading cttable!")); |
616915dd | 112 | cttable_load (f); |
113 | } | |
114 | ||
115 | void | |
116 | ctype_dumpTable (FILE *f) | |
117 | { | |
118 | DPRINTF (("Dumping cttable!")); | |
119 | cttable_dump (f); | |
120 | } | |
121 | ||
122 | cstring | |
123 | ctype_unparseTable () | |
124 | { | |
125 | return (cttable_unparse ()); | |
126 | } | |
127 | ||
128 | void | |
129 | ctype_printTable () | |
130 | { | |
131 | cttable_print (); | |
132 | } | |
133 | ||
134 | bool | |
135 | ctype_isUserBool (ctype ct) | |
136 | { | |
137 | if (ctype_isUA (ct)) | |
138 | { | |
139 | return (usymtab_isBoolType (ctype_typeId (ct))); | |
140 | } | |
141 | ||
142 | return (FALSE); | |
143 | } | |
144 | ||
145 | ctype | |
146 | ctype_createUser (typeId u) | |
147 | { | |
148 | /* requires: ctype_createUser (u) is never called more than once for any u. */ | |
149 | ||
150 | ctbase ct = ctbase_createUser (u); | |
151 | return (cttable_addFullSafe (ctentry_makeNew (CTK_PLAIN, ct))); | |
152 | } | |
153 | ||
154 | ctype | |
155 | ctype_createAbstract (typeId u) | |
156 | { | |
157 | /* requires: ctype_createAbstract (u) is never called more than once for any u. */ | |
158 | /* [ tested by cttable_addFullSafe, not really required ] */ | |
159 | return (cttable_addFullSafe (ctentry_makeNew (CTK_PLAIN, ctbase_createAbstract (u)))); | |
160 | } | |
161 | ||
162 | int | |
163 | ctype_count (void) | |
164 | { | |
165 | return (cttab.size); | |
166 | } | |
167 | ||
168 | ctype | |
169 | ctype_realType (ctype c) | |
170 | { | |
171 | ctype r = c; | |
172 | ||
173 | if (ctype_isUA (c)) | |
174 | { | |
175 | r = uentry_getRealType (usymtab_getTypeEntry (ctype_typeId (c))); | |
176 | } | |
177 | ||
178 | if (ctype_isManifestBool (r)) | |
179 | { | |
180 | if (context_canAccessBool ()) | |
181 | { | |
182 | r = context_boolImplementationType (); | |
183 | } | |
184 | } | |
185 | ||
186 | return r; | |
187 | } | |
188 | ||
189 | bool | |
190 | ctype_isSimple (ctype c) | |
191 | { | |
192 | return (!(ctype_isPointer (c) | |
193 | || ctype_isArray (c) | |
194 | || ctype_isFunction (c))); | |
195 | } | |
196 | ||
197 | ctype | |
198 | ctype_forceRealType (ctype c) | |
199 | { | |
200 | ctype r = c; | |
201 | ||
202 | if (ctype_isUA (c)) | |
203 | { | |
204 | r = uentry_getForceRealType (usymtab_getTypeEntry (ctype_typeId (c))); | |
205 | } | |
206 | ||
207 | return r; | |
208 | } | |
209 | ||
210 | ctype | |
211 | ctype_realishType (ctype c) | |
212 | { | |
213 | if (ctype_isUA (c)) | |
214 | { | |
215 | if (ctype_isManifestBool (c)) | |
216 | { | |
217 | return ctype_bool; | |
218 | } | |
219 | else | |
220 | { | |
221 | ctype r = uentry_getRealType (usymtab_getTypeEntry | |
222 | (ctype_typeId (c))); | |
223 | return (r); | |
224 | } | |
225 | } | |
226 | ||
227 | return c; | |
228 | } | |
229 | ||
230 | bool | |
231 | ctype_isUA (ctype c) | |
232 | { | |
28bf4b0b | 233 | return (!ctype_isUnknown (c) && ctbase_isUA (ctype_getCtbase (c))); |
616915dd | 234 | } |
235 | ||
236 | bool | |
237 | ctype_isUser (ctype c) | |
238 | { | |
28bf4b0b | 239 | return (!ctype_isUnknown (c) && ctbase_isUser (ctype_getCtbase (c))); |
616915dd | 240 | } |
241 | ||
242 | bool | |
243 | ctype_isAbstract (ctype c) | |
244 | { | |
28bf4b0b | 245 | return (!ctype_isUnknown (c) |
246 | && ((ctype_isPlain (c) && ctbase_isAbstract (ctype_getCtbaseSafe (c))) || | |
247 | (ctype_isConj (c) && | |
248 | (ctype_isAbstract (ctype_getConjA (c)) | |
249 | || ctype_isAbstract (ctype_getConjB (c)))))); | |
250 | } | |
251 | ||
252 | bool | |
253 | ctype_isImmutableAbstract (ctype t) | |
254 | { | |
255 | return (ctype_isAbstract (t) && !ctype_isMutable (t)); | |
616915dd | 256 | } |
257 | ||
258 | bool | |
259 | ctype_isRealAbstract (ctype c) | |
260 | { | |
261 | return (ctype_isAbstract (ctype_realType (c)) || | |
262 | (ctype_isConj (c) && | |
263 | (ctype_isRealAbstract (ctype_getConjA (c)) || | |
264 | ctype_isRealAbstract (ctype_getConjB (c))))); | |
265 | } | |
266 | ||
267 | /* | |
268 | ** primitive creators | |
269 | */ | |
270 | ||
271 | /* | |
272 | ** createPrim not necessary --- subsumed by ctype_int, etc. | |
273 | */ | |
274 | ||
275 | /* | |
276 | ** ctbase_unknown --- removed argument | |
277 | */ | |
278 | ||
279 | /* | |
280 | ** derived types: | |
281 | ** requires: if DerivedType (T) exists in cttable, then T->derivedType is it. | |
282 | */ | |
283 | ||
284 | ctype | |
285 | ctype_makePointer (ctype c) | |
286 | { | |
287 | if (c == ctype_char) | |
288 | { | |
289 | return ctype_string; | |
290 | } | |
291 | else if (c == ctype_void) | |
292 | { | |
293 | return ctype_voidPointer; | |
294 | } | |
295 | else | |
296 | { | |
297 | ctentry cte = ctype_getCtentry (c); | |
298 | ctype clp = ctentry_getPtr (cte); | |
299 | ||
300 | if /*@+enumint@*/ (clp == CTK_DNE) /*@=enumint@*/ | |
301 | { | |
302 | ctype cnew = cttable_addDerived (CTK_PTR, ctbase_makePointer (c), c); | |
303 | ctentry_setPtr (cte, cnew); | |
28bf4b0b | 304 | return (cnew); |
616915dd | 305 | } |
306 | else | |
307 | { | |
28bf4b0b | 308 | return clp; |
616915dd | 309 | } |
310 | } | |
311 | } | |
312 | ||
313 | ctype ctype_makeFixedArray (ctype c, long size) | |
314 | { | |
315 | return (cttable_addDerived (CTK_ARRAY, ctbase_makeFixedArray (c, size), c)); | |
316 | } | |
317 | ||
318 | ctype | |
319 | ctype_makeArray (ctype c) | |
320 | { | |
321 | ctentry cte = ctype_getCtentry (c); | |
322 | ctype clp = ctentry_getArray (cte); | |
323 | ||
324 | if /*@+enumint@*/ (clp == CTK_DNE) /*@=enumint@*/ | |
325 | { | |
326 | ctype cnew = cttable_addDerived (CTK_ARRAY, ctbase_makeArray (c), c); | |
327 | ctentry_setArray (cte, cnew); | |
328 | return (cnew); | |
329 | } | |
330 | else | |
331 | return clp; | |
332 | } | |
333 | ||
334 | /* | |
335 | ** requires c is a pointer of array | |
336 | */ | |
337 | ||
338 | ctype | |
339 | ctype_baseArrayPtr (ctype c) | |
340 | { | |
341 | ctentry cte = ctype_getCtentry (ctype_realType (c)); | |
342 | ||
343 | if (ctype_isConj (c)) | |
344 | { | |
345 | if (ctype_isAP (ctype_getConjA (c))) | |
346 | { | |
347 | if (ctype_isAP (ctype_getConjB (c))) | |
348 | { | |
349 | return (ctype_makeConj (ctype_baseArrayPtr (ctype_getConjA (c)), | |
350 | ctype_baseArrayPtr (ctype_getConjB (c)))); | |
351 | } | |
352 | else | |
353 | { | |
354 | return (ctype_baseArrayPtr (ctype_getConjA (c))); | |
355 | } | |
356 | } | |
357 | else | |
358 | { | |
359 | return (ctype_baseArrayPtr (ctype_getConjB (c))); | |
360 | } | |
361 | } | |
362 | else if (ctype_isInt (c)) /* could be NULL */ | |
363 | { | |
364 | return ctype_unknown; | |
365 | } | |
366 | else | |
367 | { | |
368 | ctype clp = ctentry_getBase (cte); | |
369 | ||
370 | if (ctype_isBroken (clp)) | |
371 | { | |
372 | llbuglit ("ctype_baseArrayPtr: bogus ctype"); | |
373 | } | |
374 | ||
375 | return clp; | |
376 | } | |
377 | } | |
378 | ||
379 | ctype | |
28bf4b0b | 380 | ctype_getReturnType (ctype c) |
616915dd | 381 | { |
28bf4b0b | 382 | if (ctype_isUnknown (c)) |
383 | { | |
384 | return ctype_unknown; | |
385 | } | |
386 | ||
616915dd | 387 | return (ctbase_baseFunction (ctype_getCtbaseSafe (c))); |
388 | } | |
389 | ||
390 | /* | |
391 | ** must be a shared pointer | |
392 | */ | |
393 | ||
394 | /*@observer@*/ uentryList | |
395 | ctype_argsFunction (ctype c) | |
396 | { | |
28bf4b0b | 397 | if (ctype_isUnknown (c)) |
398 | { | |
399 | return uentryList_undefined; | |
400 | } | |
401 | ||
616915dd | 402 | return (ctbase_argsFunction (ctype_getCtbaseSafe (c))); |
403 | } | |
404 | ||
405 | /* | |
406 | ** Returns type with base type p and compound types from c. | |
407 | ** | |
408 | ** i.e., c = char *[]; p = int | |
409 | ** => int *[] | |
410 | */ | |
411 | ||
412 | ctype | |
413 | ctype_newBase (ctype c, ctype p) | |
414 | { | |
415 | return (ctbase_newBase (c, p)); | |
416 | } | |
417 | ||
418 | bool | |
419 | ctype_sameAltTypes (ctype c1, ctype c2) | |
420 | { | |
421 | ctype c1a, c2a; | |
422 | ctype c1b, c2b; | |
423 | ||
424 | llassert (ctype_isConj (c1) && ctype_isConj (c2)); | |
425 | ||
426 | c1a = ctype_getConjA (c1); | |
427 | c2a = ctype_getConjA (c2); | |
428 | ||
429 | c1b = ctype_getConjB (c1); | |
430 | c2b = ctype_getConjB (c2); | |
431 | ||
432 | if (ctype_compare (c1a, c2a) == 0) | |
433 | { | |
434 | if (ctype_compare (c1b, c2b) == 0) | |
435 | { | |
436 | return TRUE; | |
437 | } | |
438 | else | |
439 | { | |
440 | if (ctype_isConj (c1b) && ctype_isConj (c2b)) | |
441 | { | |
442 | return ctype_sameAltTypes (c1b, c2b); | |
443 | } | |
444 | else | |
445 | { | |
446 | return FALSE; | |
447 | } | |
448 | } | |
449 | } | |
450 | else | |
451 | { | |
452 | if (ctype_compare (c1a, c2b) == 0) | |
453 | { | |
454 | if (ctype_compare (c1b, c2a) == 0) | |
455 | { | |
456 | return TRUE; | |
457 | } | |
458 | else | |
459 | { | |
460 | if (ctype_isConj (c1b) && ctype_isConj (c2a)) | |
461 | { | |
462 | return ctype_sameAltTypes (c1b, c2a); | |
463 | } | |
464 | else | |
465 | { | |
466 | return FALSE; | |
467 | } | |
468 | } | |
469 | } | |
470 | else | |
471 | { | |
472 | return FALSE; | |
473 | } | |
474 | } | |
475 | } | |
476 | ||
477 | int | |
478 | ctype_compare (ctype c1, ctype c2) | |
479 | { | |
480 | ctentry ce1; | |
481 | ctentry ce2; | |
482 | ||
28bf4b0b | 483 | if (ctype_isUnknown (c1)) |
484 | { | |
485 | if (ctype_isUnknown (c2)) | |
486 | { | |
487 | return 0; | |
488 | } | |
489 | else | |
490 | { | |
491 | return 1; | |
492 | } | |
493 | } | |
494 | ||
495 | if (ctype_isUnknown (c2)) | |
496 | { | |
497 | return -1; | |
498 | } | |
499 | ||
616915dd | 500 | /* Can't get entries for special ctypes (elips marker) */ |
501 | ||
502 | if (ctype_isElips (c1) || ctype_isElips (c2) | |
503 | || ctype_isMissingParamsMarker (c1) || ctype_isMissingParamsMarker (c2)) { | |
504 | return int_compare (c1, c2); | |
505 | } | |
506 | ||
507 | ce1 = ctype_getCtentry (c1); | |
508 | ce2 = ctype_getCtentry (c2); | |
509 | ||
510 | if (ctentry_isComplex (ce1)) | |
511 | { | |
512 | if (ctentry_isComplex (ce2)) | |
513 | { | |
514 | return (ctbase_compare (ctype_getCtbase (c1), | |
515 | ctype_getCtbase (c2), FALSE)); | |
516 | } | |
517 | else | |
518 | { | |
519 | return 1; | |
520 | } | |
521 | } | |
522 | else if (ctentry_isComplex (ce2)) | |
523 | { | |
524 | return -1; | |
525 | } | |
526 | else | |
527 | { | |
528 | return (int_compare (c1, c2)); | |
529 | } | |
530 | } | |
531 | ||
532 | /* | |
533 | ** complex types | |
534 | */ | |
535 | ||
536 | /* | |
537 | ** makeFunction: pointer to function returning base | |
538 | */ | |
539 | ||
540 | ctype | |
541 | ctype_makeParamsFunction (ctype base, /*@only@*/ uentryList p) | |
542 | { | |
543 | uentryList_fixImpParams (p); | |
544 | return (ctype_makeFunction (base, p)); | |
545 | } | |
546 | ||
547 | ctype | |
548 | ctype_makeNFParamsFunction (ctype base, /*@only@*/ uentryList p) | |
549 | { | |
550 | uentryList_fixImpParams (p); | |
551 | return (ctbase_makeNFFunction (base, p)); | |
552 | } | |
553 | ||
554 | ctype | |
555 | ctype_makeFunction (ctype base, /*@only@*/ uentryList p) | |
556 | { | |
557 | ctype ret; | |
558 | ret = ctbase_makeFunction (base, p); | |
559 | return (ret); | |
560 | } | |
561 | ||
562 | ctype ctype_expectFunction (ctype c) | |
563 | { | |
564 | /* handle parenthesized declarations */ | |
565 | ||
566 | if (!ctype_isAP (c)) | |
567 | { | |
568 | c = ctype_makePointer (c); | |
569 | } | |
570 | ||
571 | return (cttable_addComplex (ctbase_expectFunction (c))); | |
572 | } | |
573 | ||
574 | /* | |
575 | ** makeRealFunction: function returning base | |
576 | */ | |
577 | ||
28bf4b0b | 578 | ctype ctype_makeRawFunction (ctype base, uentryList p) |
616915dd | 579 | { |
28bf4b0b | 580 | return (cttable_addComplex (ctbase_makeLiveFunction (base, p))); |
616915dd | 581 | } |
582 | ||
583 | /* | |
584 | ** plain predicates | |
585 | */ | |
586 | ||
587 | /*** | |
588 | **** this is very poorly defined | |
589 | **** | |
590 | **** need to unify function/function pointer meaning | |
591 | ***/ | |
592 | ||
593 | bool | |
594 | ctype_isFunction (ctype c) | |
595 | { | |
28bf4b0b | 596 | if (ctype_isKnown (c) && ctype_isDefined (c)) |
597 | { | |
598 | return (ctbase_isFunction (ctype_getCtbase (c))); | |
599 | } | |
600 | else | |
601 | { | |
602 | return FALSE; | |
603 | } | |
616915dd | 604 | } |
605 | ||
606 | bool | |
607 | ctype_isExpFcn (ctype c) | |
608 | { | |
28bf4b0b | 609 | return (ctype_isKnown (c) && ctbase_isExpFcn (ctype_getCtbase (c))); |
616915dd | 610 | } |
611 | ||
612 | bool | |
613 | ctype_isVoid (ctype c) | |
614 | { | |
615 | return (c == CTX_VOID); | |
616 | } | |
617 | ||
618 | bool | |
619 | ctype_isArbitraryIntegral (ctype c) | |
620 | { | |
621 | ctype cr = ctype_realType (c); | |
622 | ||
623 | return (cr == ctype_anyintegral || cr == ctype_unsignedintegral | |
624 | || cr == ctype_signedintegral); | |
625 | } | |
626 | ||
627 | bool | |
628 | ctype_isUnsignedIntegral (ctype c) | |
629 | { | |
630 | ctype cr = ctype_realType (c); | |
631 | ||
632 | return (cr == ctype_unsignedintegral); | |
633 | } | |
634 | ||
635 | bool | |
636 | ctype_isSignedIntegral (ctype c) | |
637 | { | |
638 | ctype cr = ctype_realType (c); | |
639 | ||
640 | return (cr == ctype_signedintegral); | |
641 | } | |
642 | ||
643 | bool | |
644 | ctype_isInt (ctype c) | |
645 | { | |
646 | cprim cp = ctype_toCprim (c); | |
647 | ||
648 | return (c == ctype_unknown || cprim_isAnyInt (cp) | |
649 | || (cprim_isAnyChar (cp) && context_msgCharInt ()) | |
650 | || (c == ctype_bool && context_msgBoolInt ()) | |
651 | || (ctype_isEnum (c) && context_msgEnumInt ())); | |
652 | } | |
653 | ||
654 | bool | |
655 | ctype_isRegularInt (ctype c) | |
656 | { | |
657 | cprim cp = ctype_toCprim (c); | |
658 | ||
659 | return (c == ctype_unknown | |
660 | || cprim_closeEnough (cprim_int, cp) | |
661 | || (cprim_isAnyChar (cp) && context_msgCharInt ()) | |
662 | || (c == ctype_bool && context_msgBoolInt ()) | |
663 | || (ctype_isEnum (c) && context_msgEnumInt ())); | |
664 | } | |
665 | ||
666 | bool | |
667 | ctype_isString (ctype c) | |
668 | { | |
669 | return (c == ctype_string | |
670 | || (ctype_isPointer (c) | |
671 | && ctype_isChar (ctype_baseArrayPtr (c)))); | |
672 | } | |
673 | ||
674 | bool | |
675 | ctype_isChar (ctype c) | |
676 | { | |
677 | return ((c == ctype_unknown) || (cprim_isAnyChar (ctype_toCprim (c))) | |
678 | || (context_getFlag (FLG_CHARINT) && ctype_isInt (c))); | |
679 | } | |
680 | ||
681 | bool | |
682 | ctype_isUnsignedChar (ctype c) | |
683 | { | |
684 | return ((c == ctype_unknown) || (cprim_isUnsignedChar (ctype_toCprim (c)))); | |
685 | } | |
686 | ||
687 | bool | |
688 | ctype_isSignedChar (ctype c) | |
689 | { | |
690 | return ((c == ctype_unknown) || (cprim_isSignedChar (ctype_toCprim (c)))); | |
691 | } | |
692 | ||
693 | /* | |
694 | ** Returns true if c matches the name -booltype <bool> | |
695 | */ | |
696 | ||
697 | bool | |
698 | ctype_isManifestBool (ctype c) | |
699 | { | |
700 | /* | |
701 | ** Changed the meaning of ctype_isBool - evs 2000-07-24 | |
702 | ** The old meaning was very convoluted! | |
703 | ** | |
704 | ** c is a bool if: | |
705 | ** c == CTX_BOOL - its a direct bool | |
706 | ** c is a user/abstract type matching the bool name | |
707 | ** (should never occur?) | |
708 | */ | |
709 | ||
710 | if (ctype_isDirectBool (c)) { | |
711 | return TRUE; | |
712 | } else if (ctype_isUA (c)) { | |
713 | return ctype_isUserBool (c); | |
714 | } else { | |
715 | return FALSE; | |
716 | } | |
717 | } | |
718 | ||
719 | bool | |
720 | ctype_isBool (ctype c) | |
721 | { | |
722 | /* | |
723 | ** Changed the meaning of ctype_isBool - evs 2000-07-24 | |
724 | ** The old meaning was very convoluted! | |
725 | ** | |
726 | ** c is a bool if: | |
727 | ** its a manifest bool | |
728 | ** +boolint and ctype_isInt (c) | |
729 | */ | |
730 | ||
731 | if (ctype_isManifestBool (c)) { | |
732 | return TRUE; | |
733 | } else if (context_msgBoolInt ()) { | |
734 | return ctype_isInt (c); | |
735 | } else { | |
736 | return FALSE; | |
737 | } | |
738 | ||
739 | # if 0 | |
740 | if (context_getFlag (FLG_ABSTRACTBOOL)) | |
741 | { | |
742 | if (typeId_isInvalid (boolType)) | |
743 | { | |
744 | boolType = usymtab_getTypeId (context_getBoolName ()); | |
745 | } | |
746 | ||
747 | if (context_hasAccess (boolType)) | |
748 | { | |
749 | return (((c == CTX_UNKNOWN) || (c == CTX_BOOL) | |
750 | || (context_msgBoolInt () | |
751 | && (c == CTX_INT | |
752 | || (c == CTX_CHAR && context_msgCharInt ())))) | |
753 | || ctype_isInt (c)); | |
754 | } | |
755 | } | |
756 | ||
757 | return ((c == CTX_UNKNOWN) || (c == CTX_BOOL) | |
758 | || (context_msgBoolInt () | |
759 | && (c == CTX_INT || (c == CTX_CHAR && context_msgCharInt ())))); | |
760 | # endif | |
761 | } | |
762 | ||
763 | bool | |
764 | ctype_isDirectBool (ctype c) | |
765 | { | |
766 | return (c == CTX_BOOL); | |
767 | } | |
768 | ||
769 | bool | |
770 | ctype_isReal (ctype c) | |
771 | { | |
772 | return (cprim_isAnyReal (ctype_toCprim (c))); | |
773 | } | |
774 | ||
775 | bool | |
776 | ctype_isFloat (ctype c) | |
777 | { | |
778 | return (c == ctype_float); | |
779 | } | |
780 | ||
781 | bool | |
782 | ctype_isDouble (ctype c) | |
783 | { | |
784 | return (c == ctype_double || c == ctype_ldouble); | |
785 | } | |
786 | ||
787 | bool | |
788 | ctype_isSigned (ctype c) | |
789 | { | |
790 | return (!ctype_isUnsigned (c)); | |
791 | } | |
792 | ||
793 | bool | |
794 | ctype_isNumeric (ctype c) | |
795 | { | |
796 | return (ctype_isInt (c) || ctype_isReal (c) || ctype_isEnum (c)); | |
797 | } | |
798 | ||
799 | ||
800 | /* | |
801 | ** real predicates | |
802 | ** | |
803 | ** work on actual type in current context | |
804 | */ | |
805 | ||
806 | bool | |
807 | ctype_isRealNumeric (ctype c) | |
808 | { | |
809 | if (ctype_isPlain (c)) | |
810 | return (ctype_isNumeric (ctype_realType (c))); | |
811 | if (ctype_isConj (c)) | |
812 | return (ctype_isRealNumeric (ctype_getConjA (c)) || | |
813 | ctype_isRealNumeric (ctype_getConjB (c))); | |
814 | else | |
815 | return FALSE; | |
816 | } | |
817 | ||
818 | bool | |
819 | ctype_isRealInt (ctype c) | |
820 | { | |
821 | if (ctype_isPlain (c)) | |
822 | return (ctype_isInt (ctype_realType (c))); | |
823 | else if (ctype_isConj (c)) | |
824 | return (ctype_isRealInt (ctype_getConjA (c)) || | |
825 | ctype_isRealInt (ctype_getConjB (c))); | |
826 | else | |
827 | { | |
828 | if (ctype_isEnum (c) && context_msgEnumInt ()) return TRUE; | |
829 | return FALSE; | |
830 | } | |
831 | } | |
832 | ||
833 | bool | |
834 | ctype_isRealVoid (ctype c) | |
835 | { | |
836 | if (ctype_isPlain (c)) | |
837 | { | |
838 | return (ctype_isVoid (ctype_realType (c))); | |
839 | } | |
840 | else if (ctype_isConj (c)) | |
841 | { | |
842 | return (ctype_isRealVoid (ctype_getConjA (c)) || | |
843 | ctype_isRealVoid (ctype_getConjB (c))); | |
844 | } | |
845 | else | |
846 | { | |
847 | return FALSE; | |
848 | } | |
849 | } | |
850 | ||
851 | bool | |
852 | ctype_isRealBool (ctype c) | |
853 | { | |
854 | if (ctype_isPlain (c)) | |
855 | { | |
856 | return (ctype_isBool (ctype_realishType (c))); | |
857 | } | |
858 | else if (ctype_isConj (c)) | |
859 | { | |
860 | return (ctype_isRealBool (ctype_getConjA (c)) || | |
861 | ctype_isRealBool (ctype_getConjB (c))); | |
862 | } | |
863 | else | |
864 | { | |
865 | return FALSE; | |
866 | } | |
867 | } | |
868 | ||
869 | bool | |
870 | ctype_isRealPointer (ctype c) | |
871 | { | |
872 | if (ctype_isConj (c)) | |
873 | return (ctype_isRealPointer (ctype_getConjA (c)) || | |
874 | ctype_isRealPointer (ctype_getConjB (c))); | |
875 | return (ctype_isPointer (ctype_realType (c))); | |
876 | } | |
877 | ||
878 | bool | |
879 | ctype_isRealSU (ctype c) | |
880 | { | |
881 | if (ctype_isConj (c)) | |
882 | { | |
883 | return (ctype_isRealSU (ctype_getConjA (c)) || | |
884 | ctype_isRealSU (ctype_getConjB (c))); | |
885 | } | |
28bf4b0b | 886 | |
887 | DPRINTF (("Real su: %s / %s", ctype_unparse (c), ctype_unparse (ctype_realType (c)))); | |
616915dd | 888 | return (ctype_isStructorUnion (ctype_realType (c))); |
889 | } | |
890 | ||
891 | bool | |
892 | ctype_isRealArray (ctype c) | |
893 | { | |
894 | if (ctype_isConj (c)) | |
895 | return (ctype_isRealArray (ctype_getConjA (c)) || | |
896 | ctype_isRealArray (ctype_getConjB (c))); | |
897 | return (ctype_isArray (ctype_realType (c))); | |
898 | } | |
899 | ||
900 | bool | |
901 | ctype_isRealAP (ctype c) | |
902 | { | |
903 | if (ctype_isConj (c)) | |
904 | return (ctype_isRealAP (ctype_getConjA (c)) || | |
905 | ctype_isRealAP (ctype_getConjB (c))); | |
906 | return (ctype_isAP (ctype_realType (c))); | |
907 | } | |
908 | ||
909 | bool | |
910 | ctype_isRealFunction (ctype c) | |
911 | { | |
912 | if (ctype_isConj (c)) | |
913 | return (ctype_isRealFunction (ctype_getConjA (c)) || | |
914 | ctype_isRealFunction (ctype_getConjB (c))); | |
915 | return (ctype_isFunction (ctype_realType (c))); | |
916 | } | |
917 | ||
918 | bool | |
919 | ctype_isDirectInt (ctype c) | |
920 | { | |
921 | return (c == CTX_INT || c == CTX_UINT || c == CTX_SINT || c == CTX_ULINT || c == CTX_USINT); | |
922 | } | |
923 | ||
924 | /* | |
925 | ** forceful predicates | |
926 | ** | |
927 | ** take *ctype; if its a conjunct, and there is a match replace with match only. | |
928 | ** if both match, still conjunct | |
929 | */ | |
930 | ||
931 | static bool | |
932 | ctype_isForcePred (ctype * c, bool (pred) (ctype)) | |
933 | { | |
934 | if (ctype_isConj (*c)) | |
935 | { | |
936 | ctype cbr = ctype_getConjA (*c); | |
937 | ||
938 | if ((*pred) (cbr)) | |
939 | { | |
940 | if ((*pred) (ctype_getConjB (*c))) | |
941 | { | |
942 | ; | |
943 | } | |
944 | else | |
945 | { | |
946 | *c = cbr; | |
947 | } | |
948 | ||
949 | return TRUE; | |
950 | } | |
951 | else | |
952 | { | |
953 | if ((*pred) (cbr = ctype_getConjB (*c))) | |
954 | { | |
955 | *c = cbr; | |
956 | return TRUE; | |
957 | } | |
958 | } | |
959 | } | |
960 | ||
961 | return ((*pred) (*c)); | |
962 | } | |
963 | ||
964 | bool | |
965 | ctype_isForceRealNumeric (ctype * c) | |
966 | { | |
967 | return (ctype_isForcePred (c, ctype_isRealNumeric)); | |
968 | } | |
969 | ||
970 | bool | |
971 | ctype_isForceRealInt (ctype * c) | |
972 | { | |
973 | return (ctype_isForcePred (c, ctype_isRealInt)); | |
974 | } | |
975 | ||
976 | bool | |
977 | ctype_isForceRealBool (ctype * c) | |
978 | { | |
979 | return (ctype_isForcePred (c, ctype_isRealBool)); | |
980 | } | |
981 | ||
982 | /* | |
983 | ** conjuncts | |
984 | ** | |
985 | ** save int/char, int/bool, other random conjuncts | |
986 | */ | |
987 | ||
988 | static ctype | |
989 | ctype_makeConjAux (ctype c1, ctype c2, bool isExplicit) | |
990 | { | |
991 | if (ctype_isBogus (c1) || ctype_isUndefined (c1)) | |
992 | { | |
993 | return c2; | |
994 | } | |
995 | else if (ctype_isBogus (c2) || ctype_isUndefined (c2)) | |
996 | { | |
997 | return c1; | |
998 | } | |
999 | else | |
1000 | { | |
1001 | if (isExplicit) | |
1002 | { | |
1003 | return (ctype_makeExplicitConj (c1, c2)); | |
1004 | } | |
1005 | else | |
1006 | { | |
1007 | return (ctype_makeConj (c1, c2)); | |
1008 | } | |
1009 | } | |
1010 | } | |
1011 | ||
1012 | ctype | |
1013 | ctype_makeExplicitConj (ctype c1, ctype c2) | |
1014 | { | |
1015 | if (ctype_isFunction (c1) && !ctype_isFunction (c2)) | |
1016 | { | |
28bf4b0b | 1017 | ctype ret = ctype_makeExplicitConj (ctype_getReturnType (c1), c2); |
616915dd | 1018 | |
1019 | return ctype_makeFunction (ret, uentryList_copy (ctype_getParams (c1))); | |
1020 | } | |
1021 | else if (ctype_isFunction (c2) && !ctype_isFunction (c1)) | |
1022 | { | |
28bf4b0b | 1023 | ctype ret = ctype_makeExplicitConj (c1, ctype_getReturnType (c2)); |
616915dd | 1024 | |
1025 | return ctype_makeFunction (ret, uentryList_copy (ctype_getParams (c2))); | |
1026 | } | |
1027 | else | |
1028 | { | |
1029 | return (cttable_addComplex (ctbase_makeConj (c1, c2, TRUE))); | |
1030 | } | |
1031 | } | |
1032 | ||
1033 | static ctype ic = ctype_unknown; /* int | char */ | |
1034 | static ctype ib = ctype_unknown; /* int | bool */ | |
1035 | static ctype ifl = ctype_unknown; /* int | float */ | |
1036 | static ctype ibf = ctype_unknown; /* int | bool | float */ | |
1037 | static ctype ibc = ctype_unknown; /* int | bool | char */ | |
1038 | static ctype iv = ctype_unknown; /* int | void * */ | |
1039 | static ctype ivf = ctype_unknown; /* int | void * | float */ | |
1040 | static ctype ivb = ctype_unknown; /* int | void * | bool */ | |
1041 | static ctype ivbf = ctype_unknown; /* int | void * | bool | float */ | |
1042 | static ctype cuc = ctype_unknown; /* char | unsigned char */ | |
1043 | ||
1044 | static void | |
1045 | ctype_recordConj (ctype c) | |
1046 | { | |
1047 | ctype c1, c2; | |
1048 | ||
1049 | llassert (ctype_isConj (c)); | |
1050 | ||
1051 | c1 = ctype_getConjA (c); | |
1052 | c2 = ctype_getConjB (c); | |
1053 | ||
1054 | /* No, can't swap! | |
1055 | if (c2 == ctype_int && c1 != ctype_int) | |
1056 | { | |
1057 | ctype tmp; | |
1058 | ||
1059 | tmp = c1; | |
1060 | c1 = c2; | |
1061 | c2 = tmp; | |
1062 | } | |
1063 | */ | |
1064 | ||
1065 | if (c1 == ctype_int) | |
1066 | { | |
1067 | if (c2 == ctype_char) | |
1068 | { | |
1069 | llassert (ic == ctype_unknown); | |
1070 | ic = c; | |
1071 | } | |
1072 | else if (c2 == ctype_bool) | |
1073 | { | |
1074 | llassert (ib == ctype_unknown); | |
1075 | ib = c; | |
1076 | } | |
1077 | else if (c2 == ctype_float) | |
1078 | { | |
1079 | llassert (ifl == ctype_unknown); | |
1080 | ifl = c; | |
1081 | } | |
1082 | else if (c2 == CTP_VOID) | |
1083 | { | |
1084 | llassert (iv == ctype_unknown); | |
1085 | iv = c; | |
1086 | } | |
1087 | else | |
1088 | { | |
1089 | /* not special */ | |
1090 | } | |
1091 | } | |
1092 | else if (c1 == ib && ib != ctype_unknown) | |
1093 | { | |
1094 | if (c2 == ctype_float) | |
1095 | { | |
1096 | llassert (ibf == ctype_unknown); | |
1097 | ibf = c; | |
1098 | } | |
1099 | else if (c2 == ctype_char) | |
1100 | { | |
1101 | llassert (ibc == ctype_unknown); | |
1102 | ibc = c; | |
1103 | } | |
1104 | else | |
1105 | { | |
1106 | /* not special */ | |
1107 | } | |
1108 | } | |
1109 | else if (c1 == iv) | |
1110 | { | |
1111 | if (c2 == ctype_bool) | |
1112 | { | |
1113 | llassert (ivb == ctype_unknown); | |
1114 | ivb = c; | |
1115 | } | |
1116 | else if (c2 == ctype_float) | |
1117 | { | |
1118 | llassert (ivf == ctype_unknown); | |
1119 | ivf = c; | |
1120 | } | |
1121 | else | |
1122 | { | |
1123 | /* not special */ | |
1124 | } | |
1125 | } | |
1126 | else if (c1 == ivf) | |
1127 | { | |
1128 | if (c2 == ctype_bool) | |
1129 | { | |
1130 | llassert (ivbf == ctype_unknown); | |
1131 | ivbf = c; | |
1132 | } | |
1133 | } | |
1134 | else if (c1 == ivb) | |
1135 | { | |
1136 | if (c2 == ctype_float) | |
1137 | { | |
1138 | llassert (ivbf == ctype_unknown); | |
1139 | ivbf = c; | |
1140 | } | |
1141 | } | |
1142 | else if (c1 == ctype_char) | |
1143 | { | |
1144 | if (c2 == ctype_uchar) | |
1145 | { | |
1146 | llassert (cuc == ctype_unknown); | |
1147 | ||
1148 | cuc = c; | |
1149 | } | |
1150 | } | |
1151 | else | |
1152 | { | |
1153 | /* not special */ | |
1154 | } | |
1155 | } | |
1156 | ||
1157 | ctype | |
1158 | ctype_makeConj (ctype c1, ctype c2) | |
1159 | { | |
1160 | /* no: can have unsigned long @alt long@: llassert (c1 != c2); */ | |
1161 | ||
1162 | DPRINTF (("Make conj: %s / %s", ctype_unparse (c1), ctype_unparse (c2))); | |
1163 | ||
28bf4b0b | 1164 | if (ctype_isUnknown (c1)) |
616915dd | 1165 | { |
28bf4b0b | 1166 | return c2; |
1167 | } | |
1168 | else if (ctype_isUnknown (c2)) | |
1169 | { | |
1170 | return c1; | |
1171 | } | |
1172 | else if (ctype_isFunction (c1) && !ctype_isFunction (c2)) | |
1173 | { | |
1174 | ctype ret = ctype_makeConj (ctype_getReturnType (c1), c2); | |
616915dd | 1175 | return ctype_makeFunction (ret, uentryList_copy (ctype_getParams (c1))); |
1176 | } | |
1177 | else if (ctype_isFunction (c2) && !ctype_isFunction (c1)) | |
1178 | { | |
28bf4b0b | 1179 | ctype ret = ctype_makeConj (c1, ctype_getReturnType (c2)); |
616915dd | 1180 | return ctype_makeFunction (ret, uentryList_copy (ctype_getParams (c2))); |
1181 | } | |
1182 | else | |
1183 | { | |
1184 | if (ctype_isManifestBool (c1)) | |
1185 | { | |
1186 | c1 = ctype_bool; | |
1187 | } | |
1188 | ||
1189 | if (ctype_isManifestBool (c2)) | |
1190 | { | |
1191 | c2 = ctype_bool; | |
1192 | } | |
1193 | ||
1194 | if (ctbase_isVoidPointer (ctype_getCtbaseSafe (c1))) | |
1195 | { | |
1196 | c1 = ctype_voidPointer; | |
1197 | } | |
1198 | ||
1199 | if (ctbase_isVoidPointer (ctype_getCtbaseSafe (c2))) | |
1200 | { | |
1201 | c2 = ctype_voidPointer; | |
1202 | } | |
1203 | ||
1204 | /* | |
1205 | ** Ouch, can't do this. unsigned, etc. modifiers might | |
1206 | ** apply to wrong type! | |
1207 | ** | |
1208 | ** if (c2 == ctype_int && c1 != ctype_int) | |
1209 | ** { | |
1210 | ** ctype tmp; | |
1211 | ** | |
1212 | ** tmp = c1; | |
1213 | ** c1 = c2; | |
1214 | ** c2 = tmp; | |
1215 | ** } | |
1216 | ** | |
1217 | */ | |
1218 | ||
1219 | if (c1 == ctype_int) | |
1220 | { | |
1221 | if (c2 == ctype_char) | |
1222 | { | |
1223 | if (ic == ctype_unknown) | |
1224 | { | |
1225 | ic = cttable_addComplex (ctbase_makeConj (ctype_int, ctype_char, FALSE)); | |
1226 | } | |
1227 | ||
1228 | return ic; | |
1229 | } | |
1230 | else if (c2 == ctype_bool) | |
1231 | { | |
1232 | if (ib == ctype_unknown) | |
1233 | { | |
1234 | ib = cttable_addComplex | |
1235 | (ctbase_makeConj (ctype_int, ctype_bool, FALSE)); | |
1236 | } | |
1237 | ||
1238 | return ib; | |
1239 | } | |
1240 | else if (c2 == ctype_float) | |
1241 | { | |
1242 | if (ifl == ctype_unknown) | |
1243 | { | |
1244 | ifl = cttable_addComplex (ctbase_makeConj (ctype_int, ctype_float, FALSE)); | |
1245 | } | |
1246 | ||
1247 | return ifl; | |
1248 | } | |
1249 | else | |
1250 | { | |
1251 | if (c2 == ctype_voidPointer) | |
1252 | { | |
1253 | if (iv == ctype_unknown) | |
1254 | { | |
1255 | iv = cttable_addComplex | |
1256 | (ctbase_makeConj (ctype_int, | |
1257 | ctype_voidPointer, | |
1258 | FALSE)); | |
1259 | } | |
1260 | ||
1261 | return iv; | |
1262 | } | |
1263 | } | |
1264 | } | |
1265 | else if (c1 == ib && ib != ctype_unknown) | |
1266 | { | |
1267 | if (c2 == ctype_float) | |
1268 | { | |
1269 | if (ibf == ctype_unknown) | |
1270 | { | |
1271 | ibf = cttable_addComplex (ctbase_makeConj (ib, ctype_float, FALSE)); | |
1272 | } | |
1273 | ||
1274 | return ibf; | |
1275 | } | |
1276 | else if (c2 == ctype_char) | |
1277 | { | |
1278 | if (ibc == ctype_unknown) | |
1279 | { | |
1280 | ibc = cttable_addComplex (ctbase_makeConj (ib, ctype_char, FALSE)); | |
1281 | } | |
1282 | ||
1283 | return ibc; | |
1284 | } | |
1285 | else | |
1286 | { | |
1287 | ; | |
1288 | } | |
1289 | } | |
1290 | else if (c1 == iv) | |
1291 | { | |
1292 | if (c2 == ctype_bool) | |
1293 | { | |
1294 | if (ivb == ctype_unknown) | |
1295 | { | |
1296 | ivb = cttable_addComplex (ctbase_makeConj (c1, c2, FALSE)); | |
1297 | } | |
1298 | ||
1299 | return ivb; | |
1300 | } | |
1301 | else if (c2 == ctype_float) | |
1302 | { | |
1303 | if (ivf == ctype_unknown) | |
1304 | { | |
1305 | ivf = cttable_addComplex (ctbase_makeConj (c1, c2, FALSE)); | |
1306 | } | |
1307 | ||
1308 | return ivf; | |
1309 | } | |
1310 | else | |
1311 | { | |
1312 | ; | |
1313 | } | |
1314 | } | |
1315 | else if (c1 == ivf) | |
1316 | { | |
1317 | if (c2 == ctype_bool) | |
1318 | { | |
1319 | if (ivbf == ctype_unknown) | |
1320 | { | |
1321 | ivbf = cttable_addComplex (ctbase_makeConj (c1, c2, FALSE)); | |
1322 | } | |
1323 | ||
1324 | return ivbf; | |
1325 | } | |
1326 | } | |
1327 | else if (c1 == ivb) | |
1328 | { | |
1329 | if (c2 == ctype_float) | |
1330 | { | |
1331 | if (ivbf == ctype_unknown) | |
1332 | { | |
1333 | ivbf = cttable_addComplex (ctbase_makeConj (c1, c2, FALSE)); | |
1334 | } | |
1335 | ||
1336 | return ivbf; | |
1337 | } | |
1338 | } | |
1339 | else if (c1 == ctype_char) | |
1340 | { | |
1341 | if (c2 == ctype_uchar) | |
1342 | { | |
1343 | if (cuc == ctype_unknown) | |
1344 | { | |
1345 | cuc = cttable_addComplex (ctbase_makeConj (c1, c2, FALSE)); | |
1346 | } | |
1347 | ||
1348 | return cuc; | |
1349 | } | |
1350 | } | |
1351 | else | |
1352 | { | |
1353 | ; | |
1354 | } | |
1355 | ||
1356 | ||
1357 | return (cttable_addComplex (ctbase_makeConj (c1, c2, FALSE))); | |
1358 | } | |
1359 | } | |
1360 | ||
1361 | ||
1362 | bool | |
1363 | ctype_isConj (ctype c) | |
1364 | { | |
1365 | return (ctype_isComplex (c) && ctbase_isConj (ctype_getCtbase (c))); | |
1366 | } | |
1367 | ||
1368 | static ctype | |
1369 | ctype_getConjA (ctype c) | |
1370 | { | |
1371 | if (!ctype_isConj (c)) | |
1372 | llbuglit ("ctype_getConjA: not a conj"); | |
1373 | return (ctbase_getConjA (ctype_getCtbaseSafe (c))); | |
1374 | } | |
1375 | ||
1376 | static ctype | |
1377 | ctype_getConjB (ctype c) | |
1378 | { | |
1379 | if (!ctype_isConj (c)) | |
1380 | llbuglit ("ctype_getConjB: not a conj"); | |
1381 | return (ctbase_getConjB (ctype_getCtbaseSafe (c))); | |
1382 | } | |
1383 | ||
1384 | static bool | |
1385 | ctype_isExplicitConj (ctype c) | |
1386 | { | |
1387 | return (ctype_isConj (c) && ctbase_isExplicitConj (ctype_getCtbaseSafe (c))); | |
1388 | } | |
1389 | ||
1390 | /** << need to fix resolveConj >> **/ | |
1391 | ||
1392 | /* | |
1393 | ** structs and unions | |
1394 | */ | |
1395 | ||
1396 | ctype | |
1397 | ctype_createStruct (/*@only@*/ cstring n, /*@only@*/ uentryList f) | |
1398 | { | |
1399 | ctype ct; | |
1400 | ||
1401 | DPRINTF (("Creating a struct: %s / %s", | |
1402 | n, uentryList_unparse (f))); | |
1403 | ||
1404 | ct = cttable_addComplex (ctbase_createStruct (n, f)); | |
1405 | DPRINTF (("ct: %s", ctype_unparse (ct))); | |
1406 | return (ct); | |
1407 | } | |
1408 | ||
1409 | uentryList | |
1410 | ctype_getFields (ctype c) | |
1411 | { | |
1412 | return (ctbase_getuentryList (ctype_getCtbaseSafe (c))); | |
1413 | } | |
1414 | ||
1415 | ctype | |
1416 | ctype_createUnion (/*@only@*/ cstring n, /*@only@*/ uentryList f) | |
1417 | { | |
1418 | ctype ret; | |
1419 | ||
1420 | ret = cttable_addComplex (ctbase_createUnion (n, f)); | |
1421 | return ret; | |
1422 | } | |
1423 | ||
1424 | /* | |
1425 | ** matching | |
1426 | ** | |
1427 | ** if ctype's are same, definite match. | |
1428 | ** else, need to call ctbase_match. | |
1429 | ** | |
1430 | ** if necessary context can memoize matches | |
1431 | */ | |
1432 | ||
1433 | static bool | |
1434 | quickMatch (ctype c1, ctype c2) | |
1435 | { | |
1436 | if (c1 == c2) | |
1437 | return TRUE; | |
1438 | ||
1439 | return FALSE; | |
1440 | } | |
1441 | ||
1442 | bool | |
1443 | ctype_genMatch (ctype c1, ctype c2, bool force, bool arg, bool def, bool deep) | |
1444 | { | |
1445 | bool match; | |
1446 | ||
1447 | DPRINTF (("Gen match: %s / %s arg: %s", ctype_unparse (c1), ctype_unparse (c2), bool_unparse (arg))); | |
1448 | ||
1449 | if (quickMatch (c1, c2)) | |
1450 | { | |
1451 | return TRUE; | |
1452 | } | |
1453 | ||
1454 | if (ctype_isElips (c1) || ctype_isElips (c2)) | |
1455 | { | |
1456 | return FALSE; | |
1457 | } | |
1458 | else | |
1459 | { | |
1460 | match = ctbase_genMatch (ctype_getCtbase (c1), ctype_getCtbase (c2), force, arg, def, deep); | |
1461 | return (match); | |
1462 | } | |
1463 | } | |
1464 | ||
1465 | bool | |
1466 | ctype_sameName (ctype c1, ctype c2) | |
1467 | { | |
1468 | if (quickMatch (c1, c2)) | |
1469 | return TRUE; | |
1470 | else | |
1471 | return (cstring_equal (ctype_unparse (c1), ctype_unparse (c2))); | |
1472 | } | |
1473 | ||
1474 | bool | |
1475 | ctype_almostEqual (ctype c1, ctype c2) | |
1476 | { | |
1477 | if (ctype_equal (c1, c2)) | |
1478 | { | |
1479 | return TRUE; | |
1480 | } | |
1481 | else | |
1482 | { | |
28bf4b0b | 1483 | if (ctype_isUnknown (c1)) |
1484 | { | |
1485 | return ctype_isUnknown (c2); | |
1486 | } | |
1487 | else if (ctype_isUnknown (c2)) | |
1488 | { | |
1489 | return FALSE; | |
1490 | } | |
1491 | else | |
1492 | { | |
1493 | return (ctbase_almostEqual (ctype_getCtbase (c1), ctype_getCtbase (c2))); | |
1494 | } | |
616915dd | 1495 | } |
1496 | } | |
1497 | ||
1498 | bool | |
1499 | ctype_matchDef (ctype c1, ctype c2) | |
1500 | { | |
1501 | DPRINTF (("Match def: %s / %s", ctype_unparse (c1), ctype_unparse (c2))); | |
1502 | ||
1503 | if (quickMatch (c1, c2)) | |
1504 | return TRUE; | |
1505 | ||
1506 | if (ctype_isElips (c1)) | |
1507 | return (ctype_isElips (c2) || ctype_isUnknown (c2)); | |
1508 | ||
1509 | if (ctype_isElips (c2)) | |
28bf4b0b | 1510 | { |
1511 | return (ctype_isUnknown (c2)); | |
1512 | } | |
616915dd | 1513 | else |
1514 | { | |
1515 | bool oldrelax = context_getFlag (FLG_RELAXQUALS); | |
1516 | bool res; | |
1517 | ||
1518 | context_setFlagTemp (FLG_RELAXQUALS, FALSE); | |
1519 | res = ctbase_matchDef (ctype_getCtbase (c1), ctype_getCtbase (c2)); | |
1520 | context_setFlagTemp (FLG_RELAXQUALS, oldrelax); | |
1521 | return res; | |
1522 | } | |
1523 | } | |
1524 | ||
1525 | bool ctype_match (ctype c1, ctype c2) | |
1526 | { | |
1527 | if (quickMatch (c1, c2)) | |
1528 | return TRUE; | |
1529 | ||
1530 | if (ctype_isElips (c1)) | |
1531 | return (ctype_isElips (c2) || ctype_isUnknown (c2)); | |
1532 | ||
1533 | if (ctype_isElips (c2)) | |
1534 | return (ctype_isUnknown (c2)); | |
1535 | ||
1536 | return (ctbase_match (ctype_getCtbase (c1), ctype_getCtbase (c2))); | |
1537 | } | |
1538 | ||
1539 | bool | |
1540 | ctype_forceMatch (ctype c1, ctype c2) | |
1541 | { | |
1542 | if (quickMatch (c1, c2)) | |
1543 | return TRUE; | |
1544 | ||
1545 | if (ctype_isElips (c1)) | |
1546 | return (ctype_isElips (c2)); | |
1547 | ||
1548 | if (ctype_isElips (c2)) | |
1549 | return FALSE; | |
1550 | ||
1551 | /*@-modobserver@*/ | |
1552 | /* The call forceMatch may modify the observer params, but, we don't care. */ | |
1553 | return (ctbase_forceMatch (ctype_getCtbase (c1), ctype_getCtbase (c2))); | |
1554 | /*@=modobserver@*/ | |
1555 | } | |
1556 | ||
1557 | bool | |
1558 | ctype_matchArg (ctype c1, ctype c2) | |
1559 | { | |
1560 | if (quickMatch (c1, c2)) | |
1561 | { | |
1562 | return TRUE; | |
1563 | } | |
1564 | else | |
1565 | { | |
1566 | return (ctbase_matchArg (ctype_getCtbase (c1), ctype_getCtbase (c2))); | |
1567 | } | |
1568 | } | |
1569 | ||
1570 | /* | |
1571 | ** simple ctype_is operations. | |
1572 | ** DO NOT use real type of c, only direct type. | |
1573 | */ | |
1574 | ||
1575 | /* | |
1576 | ** ctype_isVoidPointer | |
1577 | ** | |
1578 | ** void * | |
1579 | */ | |
1580 | ||
1581 | bool | |
1582 | ctype_isVoidPointer (ctype c) | |
1583 | { | |
1584 | if (ctype_isComplex (c)) | |
1585 | { | |
1586 | return ctbase_isVoidPointer (ctype_getCtbaseSafe (c)); | |
1587 | } | |
1588 | if (ctype_isConj (c)) | |
1589 | { | |
1590 | return (ctype_isVoidPointer (ctype_getConjA (c)) || | |
1591 | ctype_isVoidPointer (ctype_getConjB (c))); | |
1592 | } | |
1593 | else | |
1594 | { | |
1595 | return (c == ctype_voidPointer | |
1596 | || (ctype_isRealPointer (c) | |
1597 | && ctype_isVoid (ctype_baseArrayPtr (c)))); | |
1598 | } | |
1599 | } | |
1600 | ||
1601 | /* | |
1602 | ** ctype_isPointer | |
1603 | ** | |
1604 | ** true for C and LCL pointers | |
1605 | */ | |
1606 | ||
1607 | bool | |
1608 | ctype_isPointer (ctype c) | |
1609 | { | |
1610 | if (ctype_isElips (c)) return FALSE; | |
1611 | ||
1612 | if (ctype_isComplex (c)) | |
1613 | { | |
1614 | ctbase ctb = ctype_getCtbaseSafe (c); | |
1615 | bool res = ctbase_isPointer (ctb); | |
1616 | ||
1617 | return res; | |
1618 | } | |
1619 | else | |
1620 | { | |
1621 | bool res = ctentry_isPointer (ctype_getCtentry (c)); | |
1622 | ||
1623 | return res; | |
1624 | } | |
1625 | } | |
1626 | ||
1627 | /* | |
1628 | ** ctype_isArray | |
1629 | ** | |
1630 | ** true for C and LCL array's | |
1631 | */ | |
1632 | ||
1633 | bool | |
1634 | ctype_isArray (ctype c) | |
1635 | { | |
1636 | if (ctype_isElips (c)) return FALSE; | |
1637 | ||
1638 | if (ctype_isComplex (c)) | |
1639 | return (ctbase_isEitherArray (ctype_getCtbaseSafe (c))); | |
1640 | else | |
1641 | return (ctentry_isArray (ctype_getCtentry (c))); | |
1642 | } | |
1643 | ||
1644 | bool ctype_isIncompleteArray (ctype c) | |
1645 | { | |
1646 | return (ctype_isArray (c) && !ctype_isFixedArray (c)); | |
1647 | } | |
1648 | ||
1649 | bool ctype_isFixedArray (ctype c) | |
1650 | { | |
1651 | if (ctype_isElips (c)) return FALSE; | |
1652 | ||
1653 | return (ctbase_isFixedArray (ctype_getCtbaseSafe (c))); | |
1654 | } | |
1655 | ||
1656 | bool | |
1657 | ctype_isArrayPtr (ctype c) | |
1658 | { | |
1659 | return ((ctype_isArray (c)) || (ctype_isPointer (c))); | |
1660 | } | |
1661 | ||
1662 | typeId | |
1663 | ctype_typeId (ctype c) | |
1664 | { | |
1665 | return (ctbase_typeId (ctype_getCtbase (c))); | |
1666 | } | |
1667 | ||
1668 | cstring | |
1669 | ctype_unparseDeclaration (ctype c, /*@only@*/ cstring name) | |
1670 | { | |
1671 | llassert (!(ctype_isElips (c) || ctype_isMissingParamsMarker (c))); | |
28bf4b0b | 1672 | |
1673 | if (ctype_isUnknown (c)) | |
1674 | { | |
1675 | return message ("? %q", name); | |
1676 | } | |
1677 | else | |
1678 | { | |
1679 | return (ctbase_unparseDeclaration (ctype_getCtbase (c), name)); | |
1680 | } | |
616915dd | 1681 | } |
1682 | ||
1683 | cstring | |
1684 | ctype_unparse (ctype c) | |
1685 | { | |
1686 | if (ctype_isElips (c)) | |
1687 | { | |
1688 | return cstring_makeLiteralTemp ("..."); | |
1689 | } | |
1690 | else if (ctype_isMissingParamsMarker (c)) | |
1691 | { | |
1692 | return cstring_makeLiteralTemp ("-"); | |
1693 | } | |
28bf4b0b | 1694 | else if (ctype_isUnknown (c)) |
1695 | { | |
1696 | return cstring_makeLiteralTemp ("?"); | |
1697 | } | |
616915dd | 1698 | else |
1699 | { | |
1700 | /*@-modobserver@*/ | |
1701 | return (ctentry_doUnparse (ctype_getCtentry (c))); | |
1702 | /*@=modobserver@*/ | |
1703 | } | |
1704 | } | |
1705 | ||
1706 | cstring | |
1707 | ctype_unparseSafe (ctype c) | |
1708 | { | |
1709 | if (ctype_isElips (c)) | |
1710 | { | |
1711 | return cstring_makeLiteralTemp ("..."); | |
1712 | } | |
1713 | else if (ctype_isMissingParamsMarker (c)) | |
1714 | { | |
1715 | return cstring_makeLiteralTemp ("-"); | |
1716 | } | |
1717 | else | |
1718 | { | |
1719 | cstring ret; | |
1720 | ||
1721 | if /*@+enumint@*/ (c >= CTK_PLAIN && c < cttab.size) /*@=enumint@*/ | |
1722 | { | |
1723 | ctentry cte = ctype_getCtentry (c); | |
1724 | ||
1725 | if (cstring_isDefined (cte->unparse)) | |
1726 | { | |
1727 | return (cte->unparse); | |
1728 | } | |
1729 | } | |
1730 | ||
1731 | ret = message ("[%d]", (int) c); | |
1732 | cstring_markOwned (ret); | |
1733 | return ret; | |
1734 | } | |
1735 | } | |
1736 | ||
1737 | cstring | |
1738 | ctype_unparseDeep (ctype c) | |
1739 | { | |
1740 | if (ctype_isElips (c)) | |
1741 | { | |
1742 | return cstring_makeLiteralTemp ("..."); | |
1743 | } | |
1744 | if (ctype_isMissingParamsMarker (c)) | |
1745 | { | |
1746 | return cstring_makeLiteralTemp ("-"); | |
1747 | } | |
1748 | ||
1749 | return (ctentry_doUnparseDeep (ctype_getCtentry (c))); | |
1750 | } | |
1751 | ||
1752 | ctype | |
1753 | ctype_undump (char **c) | |
1754 | { | |
28bf4b0b | 1755 | return ((ctype) reader_getInt (c)); /* check its valid? */ |
616915dd | 1756 | } |
1757 | ||
1758 | cstring | |
1759 | ctype_dump (ctype c) | |
1760 | { | |
1761 | DPRINTF (("Ctype dump: %s", ctype_unparse (c))); | |
1762 | ||
1763 | if (c < 0) | |
1764 | { | |
1765 | /* Handle invalid types in a kludgey way. */ | |
1766 | return (message ("0")); | |
1767 | } | |
1768 | ||
1769 | if (ctype_isUA (c)) | |
1770 | { | |
1771 | cstring tname = usymtab_getTypeEntryName | |
1772 | (usymtab_convertId (ctype_typeId (c))); | |
1773 | ||
1774 | if (cstring_equal (tname, context_getBoolName ())) | |
1775 | { | |
1776 | cstring_free (tname); | |
1777 | return (message ("%d", ctype_bool)); | |
1778 | } | |
1779 | ||
1780 | cstring_free (tname); | |
1781 | } | |
1782 | ||
1783 | DPRINTF (("Returning: %d", c)); | |
1784 | return (message ("%d", c)); | |
1785 | } | |
1786 | ||
1787 | ctype | |
1788 | ctype_getBaseType (ctype c) | |
1789 | { | |
1790 | ctentry cte = ctype_getCtentry (c); | |
1791 | ||
1792 | switch (ctentry_getKind (cte)) | |
1793 | { | |
1794 | case CTK_UNKNOWN: | |
616915dd | 1795 | case CTK_INVALID: |
616915dd | 1796 | case CTK_PLAIN: |
1797 | return c; | |
1798 | case CTK_PTR: | |
1799 | case CTK_ARRAY: | |
1800 | return (ctype_getBaseType (ctype_baseArrayPtr (c))); | |
1801 | case CTK_COMPLEX: | |
1802 | { | |
1803 | ctbase ctb = cte->ctbase; | |
1804 | ||
1805 | if (ctbase_isDefined (ctb)) | |
1806 | { | |
28bf4b0b | 1807 | /*@access ctbase@*/ |
616915dd | 1808 | switch (ctb->type) |
1809 | { | |
1810 | case CT_UNKNOWN: | |
1811 | case CT_PRIM: | |
1812 | case CT_USER: | |
1813 | case CT_ENUM: | |
1814 | case CT_ENUMLIST: | |
1815 | case CT_BOOL: | |
1816 | case CT_ABST: | |
1817 | case CT_FCN: | |
1818 | case CT_STRUCT: | |
1819 | case CT_UNION: | |
1820 | case CT_EXPFCN: | |
1821 | return c; | |
1822 | case CT_PTR: | |
1823 | case CT_ARRAY: | |
1824 | return (ctype_getBaseType (ctb->contents.base)); | |
1825 | case CT_FIXEDARRAY: | |
1826 | return (ctype_getBaseType (ctb->contents.farray->base)); | |
1827 | case CT_CONJ: /* base type of A conj branch? */ | |
1828 | return (ctype_getBaseType (ctb->contents.conj->a)); | |
1829 | } | |
28bf4b0b | 1830 | /*@noaccess ctbase@*/ |
616915dd | 1831 | } |
1832 | else | |
1833 | { | |
1834 | return c; | |
1835 | } | |
1836 | } | |
1837 | default: | |
1838 | llbuglit ("ctype_newBase: bad case"); | |
1839 | } | |
1840 | llcontbuglit ("ctype_getBaseType: unreachable code"); | |
1841 | return ((ctype)NULL); | |
1842 | } | |
1843 | ||
1844 | ctype | |
1845 | ctype_adjustPointers (int np, ctype c) | |
1846 | { | |
1847 | ||
1848 | if (ctype_isFunction (c)) | |
1849 | { | |
1850 | c = ctype_makeParamsFunction | |
28bf4b0b | 1851 | (ctype_adjustPointers (np, ctype_getReturnType (c)), |
616915dd | 1852 | uentryList_copy (ctype_argsFunction (c))); |
1853 | } | |
1854 | else | |
1855 | { | |
1856 | /* fix this should not use getBaseType ??? */ | |
1857 | ctype cb = ctype_getBaseType (c); | |
1858 | ||
1859 | while (np > 0) | |
1860 | { | |
1861 | cb = ctype_makePointer (cb); | |
1862 | np--; | |
1863 | } | |
1864 | c = ctype_newBase (c, cb); | |
1865 | } | |
1866 | ||
1867 | return (c); | |
1868 | } | |
1869 | ||
1870 | ||
1871 | enumNameList | |
1872 | ctype_elist (ctype c) | |
1873 | { | |
1874 | return (ctbase_elist (ctype_getCtbase (c))); | |
1875 | } | |
1876 | ||
1877 | bool | |
1878 | ctype_isFirstVoid (ctype c) | |
1879 | { | |
1880 | return (c == CTX_VOID || (ctype_isConj (c) && ctype_isFirstVoid (ctype_getConjA (c)))); | |
1881 | } | |
1882 | ||
1883 | ctype | |
1884 | ctype_createEnum (/*@keep@*/ cstring tag, /*@keep@*/ enumNameList el) | |
1885 | { | |
1886 | return (cttable_addComplex (ctbase_createEnum (tag, el))); | |
1887 | } | |
1888 | ||
1889 | bool | |
1890 | ctype_isEnum (ctype c) | |
1891 | { | |
1892 | return (ctype_isComplex (c) && ctbase_isEnum (ctype_getCtbase (c))); | |
1893 | } | |
1894 | ||
1895 | cstring | |
1896 | ctype_enumTag (ctype c) | |
1897 | { | |
1898 | llassert (ctype_isEnum (c)); | |
1899 | ||
1900 | return (ctbase_enumTag (ctype_getCtbaseSafe (c))); | |
1901 | } | |
1902 | ||
1903 | bool | |
1904 | ctype_isStruct (ctype c) | |
1905 | { | |
1906 | return (ctype_isComplex (c) && ctbase_isStruct (ctype_getCtbaseSafe (c))); | |
1907 | } | |
1908 | ||
1909 | bool | |
1910 | ctype_isUnion (ctype c) | |
1911 | { | |
1912 | return (ctype_isComplex (c) && ctbase_isUnion (ctype_getCtbaseSafe (c))); | |
1913 | } | |
1914 | ||
1915 | ctype | |
1916 | ctype_resolveNumerics (ctype c1, ctype c2) | |
1917 | { | |
1918 | /* | |
1919 | ** returns longest type of c1 and c2 | |
1920 | */ | |
1921 | ||
1922 | if (c1 == c2) return c1; | |
1923 | ||
1924 | c1 = ctype_realType (c1); | |
1925 | c2 = ctype_realType (c2); | |
1926 | ||
1927 | if (ctype_isEnum (c1)) c1 = ctype_unknown; | |
1928 | if (ctype_isEnum (c2)) c2 = ctype_int; | |
1929 | ||
1930 | if (c1 == ctype_ldouble || c2 == ctype_ldouble) return ctype_ldouble; | |
28bf4b0b | 1931 | |
1932 | /* 2001-06-08: This fix provided by Jim Zelenka. */ | |
1933 | if (c1 == ctype_llint || c2 == ctype_llint) return ctype_llint; | |
1934 | if (c1 == ctype_ullint || c2 == ctype_ullint) return ctype_ullint; | |
1935 | ||
616915dd | 1936 | if (c1 == ctype_ulint || c2 == ctype_ulint) return ctype_ulint; |
1937 | if (c1 == ctype_lint || c2 == ctype_lint) return ctype_lint; | |
1938 | if (c1 == ctype_uint || c2 == ctype_uint) return ctype_uint; | |
1939 | if (c1 == ctype_int || c2 == ctype_int) return ctype_int; | |
28bf4b0b | 1940 | |
1941 | /* 2001-06-08: This fix provided by Jim Zelenka. */ | |
1942 | if (c1 == ctype_usint || c2 == ctype_usint) return ctype_usint; | |
1943 | ||
616915dd | 1944 | if (c1 == ctype_sint || c2 == ctype_sint) return ctype_sint; |
28bf4b0b | 1945 | |
616915dd | 1946 | if (c1 == ctype_uchar || c2 == ctype_uchar) return ctype_uchar; |
1947 | if (c1 == ctype_char || c2 == ctype_char) return ctype_char; | |
1948 | ||
1949 | if (ctype_isKnown (c1)) return c1; | |
1950 | else return c2; | |
1951 | } | |
1952 | ||
1953 | bool | |
1954 | ctype_isStructorUnion (ctype c) | |
1955 | { | |
1956 | return (ctype_isStruct (c) || ctype_isUnion (c)); | |
1957 | } | |
1958 | ||
1959 | ctype | |
1960 | ctype_fixArrayPtr (ctype c) | |
1961 | { | |
1962 | if (ctype_isArray (c)) | |
1963 | { | |
1964 | return (ctype_makePointer (ctype_baseArrayPtr (c))); | |
1965 | } | |
1966 | else | |
1967 | return c; | |
1968 | } | |
1969 | ||
1970 | /* | |
1971 | ** createUnnamedStruct/Union | |
1972 | ** | |
1973 | ** check if it corresponds to an existing LCL-specified unnamed struct | |
1974 | ** otherwise, give it a new tag | |
1975 | */ | |
1976 | ||
1977 | ctype | |
1978 | ctype_createUnnamedStruct (/*@only@*/ uentryList f) | |
1979 | { | |
1980 | ctype ret = usymtab_structFieldsType (f); | |
1981 | ||
28bf4b0b | 1982 | DPRINTF (("unnamed struct: %s", ctype_unparse (ret))); |
1983 | ||
616915dd | 1984 | if (ctype_isDefined (ret)) |
1985 | { | |
1986 | uentryList_free (f); | |
1987 | return ret; | |
1988 | } | |
1989 | else | |
1990 | { | |
1991 | cstring ft = fakeTag (); | |
1992 | ctype ct = ctype_createStruct (cstring_copy (ft), f); | |
1993 | uentry ue = uentry_makeStructTagLoc (ft, ct); | |
28bf4b0b | 1994 | |
1995 | DPRINTF (("Unnamed struct: %s", uentry_unparseFull (ue))); | |
1996 | ue = usymtab_supGlobalEntryReturn (ue); | |
1997 | DPRINTF (("After Unnamed struct: %s", uentry_unparseFull (ue))); | |
1998 | ||
616915dd | 1999 | cstring_free (ft); |
2000 | return (ct); | |
2001 | } | |
2002 | } | |
2003 | ||
2004 | ctype | |
2005 | ctype_createUnnamedUnion (/*@only@*/ uentryList f) | |
2006 | { | |
2007 | ctype ret = usymtab_unionFieldsType (f); | |
2008 | ||
2009 | if (ctype_isDefined (ret)) | |
2010 | { | |
2011 | uentryList_free (f); | |
2012 | return ret; | |
2013 | } | |
2014 | else | |
2015 | { | |
2016 | cstring ft = fakeTag (); | |
2017 | ctype ct = ctype_createUnion (cstring_copy (ft), f); | |
2018 | uentry ue = uentry_makeUnionTagLoc (ft, ct); | |
2019 | ||
2020 | usymtab_supGlobalEntry (ue); | |
2021 | cstring_free (ft); | |
2022 | return (ct); | |
2023 | } | |
2024 | } | |
2025 | ||
28bf4b0b | 2026 | bool |
2027 | ctype_isUnnamedSU (ctype c) | |
2028 | { | |
2029 | if (ctype_isSU (c)) | |
2030 | { | |
2031 | return ctbase_isUnnamedSU (ctype_getCtbase (c)); | |
2032 | } | |
2033 | else | |
2034 | { | |
2035 | return FALSE; | |
2036 | } | |
2037 | } | |
2038 | ||
616915dd | 2039 | ctype |
2040 | ctype_createForwardStruct (cstring n) | |
2041 | { | |
2042 | uentry ue = uentry_makeStructTag (n, ctype_unknown, fileloc_undefined); | |
2043 | ctype ct = usymtab_supForwardTypeEntry (ue); | |
2044 | ||
2045 | cstring_free (n); | |
2046 | return (ct); | |
2047 | } | |
2048 | ||
2049 | ctype | |
2050 | ctype_createForwardUnion (cstring n) | |
2051 | { | |
2052 | uentry ue = uentry_makeUnionTag (n, ctype_unknown, fileloc_undefined); | |
2053 | ctype ct = usymtab_supForwardTypeEntry (ue); | |
2054 | ||
2055 | cstring_free (n); | |
2056 | return (ct); | |
2057 | } | |
2058 | ||
2059 | ctype | |
2060 | ctype_removePointers (ctype c) | |
2061 | { | |
2062 | ctype oldc; | |
2063 | ||
28bf4b0b | 2064 | while (ctype_isKnown (c) && ctype_isArrayPtr (c)) |
616915dd | 2065 | { |
2066 | oldc = c; | |
2067 | c = ctype_baseArrayPtr (c); | |
2068 | llassert (c != oldc); | |
2069 | } | |
2070 | ||
2071 | return (c); | |
2072 | } | |
2073 | ||
2074 | bool ctype_isMutable (ctype t) | |
2075 | { | |
2076 | if (ctype_isUA (t)) | |
2077 | { | |
2078 | return (uentry_isMutableDatatype | |
2079 | (usymtab_getTypeEntry (ctype_typeId (t)))); | |
2080 | } | |
2081 | else | |
2082 | { | |
2083 | return (ctype_isPointer (ctype_realType (t))); | |
28bf4b0b | 2084 | /*!! || ctype_isStructorUnion (ctype_realType (t))); */ |
616915dd | 2085 | } |
2086 | } | |
2087 | ||
2088 | bool ctype_isRefCounted (ctype t) | |
2089 | { | |
2090 | if (ctype_isUA (t)) | |
2091 | { | |
2092 | return (uentry_isRefCountedDatatype | |
2093 | (usymtab_getTypeEntry (ctype_typeId (t)))); | |
2094 | } | |
2095 | ||
2096 | return FALSE; | |
2097 | } | |
2098 | ||
2099 | bool ctype_isVisiblySharable (ctype t) | |
2100 | { | |
2101 | if (ctype_isUnknown (t)) return TRUE; | |
2102 | ||
2103 | if (ctype_isConj (t)) | |
2104 | { | |
2105 | return (ctype_isVisiblySharable (ctype_getConjA (t)) | |
2106 | || ctype_isVisiblySharable (ctype_getConjB (t))); | |
2107 | } | |
2108 | ||
2109 | if (ctype_isMutable (t)) | |
2110 | { | |
2111 | if (ctype_isUA (t)) | |
2112 | { | |
2113 | ctype rt = ctype_realType (t); | |
2114 | ||
2115 | if (rt == t) | |
2116 | { | |
2117 | return TRUE; | |
2118 | } | |
2119 | else | |
2120 | { | |
2121 | return ctype_isVisiblySharable (rt); | |
28bf4b0b | 2122 | |
616915dd | 2123 | } |
2124 | } | |
2125 | else | |
2126 | { | |
2127 | return TRUE; | |
2128 | } | |
2129 | } | |
2130 | ||
2131 | return FALSE; | |
2132 | } | |
2133 | ||
2134 | # if 0 | |
2135 | /* Replaced by ctype_isMutable (more sensible) */ | |
2136 | bool ctype_canAlias (ctype ct) | |
2137 | { | |
2138 | /* can ct refer to memory locations? | |
2139 | ** ==> a pointer or a mutable abstract type | |
2140 | ** arrays? | |
2141 | */ | |
2142 | ||
2143 | ctype tr = ctype_realType (ct); | |
2144 | ||
2145 | return (ctype_isPointer (tr) || ctype_isMutable (ct) || ctype_isStructorUnion (tr)); | |
2146 | } | |
2147 | # endif | |
2148 | ||
2149 | /* | |
2150 | ** c1 is the dominant type; c2 is the modifier type | |
2151 | ** | |
2152 | ** eg. double + long int => long double | |
2153 | */ | |
2154 | ||
2155 | ctype ctype_combine (ctype dominant, ctype modifier) | |
2156 | { | |
2157 | DPRINTF (("Combine: %s + %s", | |
2158 | ctype_unparse (dominant), | |
2159 | ctype_unparse (modifier))); | |
2160 | ||
2161 | if (ctype_isConj (dominant)) | |
2162 | { | |
2163 | ctype res; | |
2164 | ||
2165 | if (ctype_isExplicitConj (dominant)) | |
2166 | { | |
2167 | res = ctype_makeExplicitConj (ctype_combine (ctype_getConjA (dominant), | |
2168 | modifier), | |
2169 | ctype_getConjB (dominant)); | |
2170 | } | |
2171 | else | |
2172 | { | |
2173 | res = ctype_makeConj (ctype_combine (ctype_getConjA (dominant), | |
2174 | modifier), | |
2175 | ctype_getConjB (dominant)); | |
2176 | } | |
2177 | ||
2178 | return res; | |
2179 | } | |
2180 | ||
2181 | if (ctype_isUnknown (modifier)) | |
2182 | { | |
2183 | return dominant; | |
2184 | } | |
2185 | else if (ctype_isUnknown (dominant)) | |
2186 | { | |
2187 | return modifier; | |
2188 | } | |
2189 | else | |
2190 | { | |
2191 | if (ctype_isEnum (dominant)) dominant = ctype_int; | |
2192 | if (ctype_isEnum (modifier)) modifier = ctype_int; | |
2193 | ||
2194 | if (modifier == ctype_uint) | |
2195 | { | |
2196 | if (dominant == ctype_int) return ctype_uint; | |
2197 | if (dominant == ctype_lint) return ctype_ulint; | |
2198 | if (dominant == ctype_sint) return ctype_usint; | |
2199 | if (dominant == ctype_char) return ctype_uchar; | |
2200 | ||
2201 | /* evs 2000-07-28: added this line */ | |
2202 | if (dominant == ctype_llint) return ctype_ullint; | |
2203 | ||
2204 | if ((dominant == ctype_uint) || dominant == ctype_uchar) | |
2205 | { | |
2206 | voptgenerror (FLG_DUPLICATEQUALS, | |
2207 | message ("Duplicate unsigned qualifier"), | |
2208 | g_currentloc); | |
2209 | ||
2210 | return ctype_uint; | |
2211 | } | |
2212 | else | |
2213 | { | |
2214 | voptgenerror (FLG_DUPLICATEQUALS, | |
2215 | message ("Type qualifier unsigned used with %s", | |
2216 | ctype_unparse (dominant)), | |
2217 | g_currentloc); | |
2218 | ||
2219 | return dominant; | |
2220 | } | |
2221 | } | |
2222 | else if (modifier == ctype_llint) | |
2223 | { | |
2224 | if (dominant == ctype_int) | |
2225 | { | |
2226 | return ctype_llint; | |
2227 | } | |
2228 | ||
2229 | voptgenerror (FLG_DUPLICATEQUALS, | |
2230 | message ("Duplicate long qualifier on non-int"), | |
2231 | g_currentloc); | |
2232 | } | |
2233 | else if (modifier == ctype_lint) | |
2234 | { | |
2235 | if (dominant == ctype_int) return ctype_lint; | |
2236 | if (dominant == ctype_uint) return ctype_ulint; | |
2237 | if (dominant == ctype_double) return ctype_ldouble; | |
2238 | ||
2239 | if (dominant == ctype_lint || dominant == ctype_ulint | |
2240 | || dominant == ctype_sint || dominant == ctype_usint | |
2241 | || dominant == ctype_ldouble) | |
2242 | { | |
2243 | if (dominant == ctype_lint) | |
2244 | { | |
2245 | /* long long not supported by ANSI */ | |
2246 | return ctype_llint; | |
2247 | } | |
2248 | ||
28bf4b0b | 2249 | /* ++jimz */ |
2250 | if (dominant == ctype_ulint) | |
2251 | { | |
2252 | /* unsigned long long not supported by ANSI */ | |
2253 | return ctype_ullint; | |
2254 | } | |
2255 | /* ==jimz */ | |
2256 | ||
616915dd | 2257 | if (dominant == ctype_sint || dominant == ctype_usint) |
2258 | { | |
2259 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2260 | { | |
2261 | llerrorlit (FLG_SYNTAX, | |
2262 | "Contradictory long and short type qualifiers"); | |
2263 | } | |
2264 | } | |
2265 | else | |
2266 | { | |
2267 | voptgenerror (FLG_DUPLICATEQUALS, | |
2268 | message ("Duplicate long qualifier"), | |
2269 | g_currentloc); | |
2270 | } | |
2271 | ||
2272 | return ctype_lint; | |
2273 | } | |
2274 | } | |
2275 | else if (modifier == ctype_sint) | |
2276 | { | |
2277 | if (dominant == ctype_int) return ctype_sint; | |
2278 | if (dominant == ctype_uint) return ctype_usint; | |
2279 | ||
2280 | if (dominant == ctype_sint || dominant == ctype_usint) | |
2281 | { | |
2282 | voptgenerror (FLG_DUPLICATEQUALS, | |
2283 | message ("Duplicate short qualifier"), | |
2284 | g_currentloc); | |
2285 | return ctype_uint; | |
2286 | } | |
2287 | else if (dominant == ctype_lint) | |
2288 | { | |
2289 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2290 | { | |
2291 | llerrorlit (FLG_SYNTAX, | |
2292 | "Contradictory long and short type qualifiers"); | |
2293 | } | |
2294 | ||
2295 | return dominant; | |
2296 | } | |
28bf4b0b | 2297 | /* ++jimz */ |
2298 | else if (dominant == ctype_llint) | |
2299 | { | |
2300 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2301 | { | |
2302 | llerrorlit (FLG_SYNTAX, | |
2303 | "Contradictory long long and short type qualifiers"); | |
2304 | } | |
2305 | ||
2306 | return dominant; | |
2307 | } | |
2308 | /* ==jimz */ | |
616915dd | 2309 | else |
2310 | { | |
2311 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2312 | { | |
2313 | llerror (FLG_SYNTAX, | |
2314 | message ("Type qualifier short used with %s", | |
2315 | ctype_unparse (dominant))); | |
2316 | } | |
2317 | ||
2318 | return dominant; | |
2319 | } | |
2320 | } | |
2321 | else if (modifier == ctype_ulint) | |
2322 | { | |
2323 | if (dominant == ctype_int) return modifier; | |
2324 | ||
2325 | if (dominant == ctype_lint || dominant == ctype_ulint) | |
2326 | { | |
2327 | voptgenerror (FLG_DUPLICATEQUALS, | |
2328 | message ("Duplicate long qualifier"), | |
2329 | g_currentloc); | |
2330 | ||
2331 | return modifier; | |
2332 | } | |
2333 | ||
2334 | if (dominant == ctype_uint || dominant == ctype_usint) | |
2335 | { | |
2336 | voptgenerror (FLG_DUPLICATEQUALS, | |
2337 | message ("Duplicate unsigned qualifier"), | |
2338 | g_currentloc); | |
2339 | ||
2340 | return modifier; | |
2341 | } | |
2342 | ||
2343 | if (dominant == ctype_sint || dominant == ctype_usint) | |
2344 | { | |
2345 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2346 | { | |
2347 | llerrorlit (FLG_SYNTAX, | |
2348 | "Contradictory long and short type qualifiers"); | |
2349 | } | |
2350 | ||
2351 | return dominant; | |
2352 | } | |
2353 | ||
2354 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2355 | { | |
2356 | llerror (FLG_SYNTAX, | |
2357 | message ("Type qualifiers unsigned long used with %s", | |
2358 | ctype_unparse (dominant))); | |
2359 | } | |
2360 | ||
2361 | return dominant; | |
2362 | } | |
2363 | else if (modifier == ctype_usint) | |
2364 | { | |
2365 | if (dominant == ctype_int) return modifier; | |
2366 | ||
2367 | if (dominant == ctype_sint || dominant == ctype_usint) | |
2368 | { | |
2369 | voptgenerror (FLG_DUPLICATEQUALS, | |
2370 | message ("Duplicate short qualifier"), | |
2371 | g_currentloc); | |
2372 | return modifier; | |
2373 | } | |
2374 | ||
2375 | if (dominant == ctype_uint) | |
2376 | { | |
2377 | voptgenerror (FLG_DUPLICATEQUALS, | |
2378 | message ("Duplicate unsigned qualifier"), | |
2379 | g_currentloc); | |
2380 | ||
2381 | return modifier; | |
2382 | } | |
2383 | ||
2384 | if (dominant == ctype_lint || dominant == ctype_ulint | |
2385 | || dominant == ctype_llint) | |
2386 | { | |
2387 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2388 | { | |
2389 | llerrorlit (FLG_SYNTAX, | |
2390 | "Contradictory long and short type qualifiers"); | |
2391 | } | |
2392 | ||
2393 | return dominant; | |
2394 | } | |
2395 | ||
2396 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2397 | { | |
2398 | llerror (FLG_SYNTAX, | |
2399 | message ("Type qualifiers unsigned short used with %s", | |
2400 | ctype_unparse (dominant))); | |
2401 | } | |
2402 | ||
2403 | return dominant; | |
2404 | } | |
2405 | else | |
2406 | { | |
2407 | ; | |
2408 | } | |
2409 | ||
2410 | return dominant; | |
2411 | } | |
2412 | } | |
2413 | ||
2414 | ctype ctype_resolve (ctype c) | |
2415 | { | |
2416 | if (ctype_isUnknown (c)) return ctype_int; | |
2417 | return c; | |
2418 | } | |
2419 | ||
2420 | ctype ctype_fromQual (qual q) | |
2421 | { | |
2422 | if (qual_isSigned (q)) return ctype_int; | |
2423 | if (qual_isUnsigned (q)) return ctype_uint; | |
2424 | if (qual_isLong (q)) return ctype_lint; | |
2425 | if (qual_isShort (q)) return ctype_sint; | |
2426 | ||
2427 | llcontbug (message ("ctype_fromQual: invalid qualifier: %s", qual_unparse (q))); | |
2428 | return ctype_unknown; | |
2429 | } | |
2430 | ||
2431 | bool | |
2432 | ctype_isAnyFloat (ctype c) | |
2433 | { | |
2434 | return (cprim_isAnyReal (ctype_toCprim (c))); | |
2435 | } | |
2436 | ||
2437 | bool | |
2438 | ctype_isUnsigned (ctype c) | |
2439 | { | |
2440 | if (ctype_isConj (c)) | |
2441 | return (ctype_isUnsigned (ctype_getConjA (c)) || | |
2442 | ctype_isUnsigned (ctype_getConjB (c))); | |
2443 | ||
2444 | return (c == ctype_uint || c == ctype_uchar | |
2445 | || c == ctype_usint || c == ctype_ulint | |
28bf4b0b | 2446 | || c == ctype_ullint |
616915dd | 2447 | || c == ctype_unsignedintegral); |
2448 | } | |
2449 | ||
28bf4b0b | 2450 | /* ++jimz */ |
2451 | static bool | |
2452 | ctype_isLongLong (ctype c) | |
2453 | { | |
2454 | if (ctype_isConj (c)) | |
2455 | return (ctype_isLongLong (ctype_getConjA (c)) || | |
2456 | ctype_isLongLong (ctype_getConjB (c))); | |
2457 | ||
2458 | return (c == ctype_llint || c == ctype_ullint); | |
2459 | } | |
2460 | /* ==jimz */ | |
2461 | ||
616915dd | 2462 | static bool |
2463 | ctype_isLong (ctype c) | |
2464 | { | |
2465 | if (ctype_isConj (c)) | |
2466 | return (ctype_isLong (ctype_getConjA (c)) || | |
2467 | ctype_isLong (ctype_getConjB (c))); | |
2468 | ||
2469 | return (c == ctype_lint || c == ctype_ulint); | |
2470 | } | |
2471 | ||
2472 | static bool | |
2473 | ctype_isShort (ctype c) | |
2474 | { | |
2475 | if (ctype_isConj (c)) | |
2476 | return (ctype_isShort (ctype_getConjA (c)) || | |
2477 | ctype_isShort (ctype_getConjB (c))); | |
2478 | ||
2479 | return (c == ctype_sint || c == ctype_usint); | |
2480 | } | |
2481 | ||
2482 | bool | |
2483 | ctype_isStackAllocated (ctype c) | |
2484 | { | |
2485 | ctype ct = ctype_realType (c); | |
2486 | ||
2487 | if (ctype_isConj (ct)) | |
2488 | return (ctype_isStackAllocated (ctype_getConjA (ct)) || | |
2489 | ctype_isStackAllocated (ctype_getConjB (ct))); | |
2490 | ||
2491 | return (ctype_isArray (c) || ctype_isSU (c)); | |
2492 | } | |
2493 | ||
2494 | static bool ctype_isMoreUnsigned (ctype c1, ctype c2) | |
2495 | { | |
2496 | return (ctype_isUnsigned (c1) && !ctype_isUnsigned (c2)); | |
2497 | } | |
2498 | ||
2499 | static bool ctype_isLonger (ctype c1, ctype c2) | |
2500 | { | |
28bf4b0b | 2501 | /* 2001-06-10: Fix for long long's provided by Jim Zelenka */ |
616915dd | 2502 | return ((ctype_isDouble (c1) && !ctype_isDouble (c2)) |
28bf4b0b | 2503 | || (ctype_isLongLong (c1) && !ctype_isLongLong (c2)) |
2504 | || (ctype_isLong (c1) | |
2505 | && (!ctype_isLong (c2)) && (!ctype_isLongLong (c2))) | |
616915dd | 2506 | || (ctype_isShort (c2) && !ctype_isShort (c1))); |
2507 | } | |
2508 | ||
2509 | ctype | |
2510 | ctype_widest (ctype c1, ctype c2) | |
2511 | { | |
28bf4b0b | 2512 | if (ctype_isMoreUnsigned (c2, c1) || ctype_isLonger (c2, c1)) |
616915dd | 2513 | { |
2514 | return c2; | |
2515 | } | |
2516 | else | |
2517 | { | |
2518 | return c1; | |
2519 | } | |
2520 | } | |
2521 | ||
28bf4b0b | 2522 | static /*@observer@*/ ctbase ctype_getCtbase (ctype c) |
2523 | { | |
2524 | /*@+enumint@*/ | |
2525 | if (c >= 0 && c < cttab.size) | |
2526 | { | |
2527 | return (cttab.entries[c]->ctbase); | |
2528 | } | |
2529 | else | |
2530 | { | |
2531 | if (c == ctype_unknown) | |
2532 | llbuglit ("ctype_getCtbase: ctype unknown"); | |
2533 | if (c == ctype_undefined) | |
2534 | llbuglit ("ctype_getCtbase: ctype undefined"); | |
2535 | if (c == ctype_dne) | |
2536 | llbuglit ("ctype_getCtbase: ctype dne"); | |
2537 | if (c == ctype_elipsMarker) | |
2538 | llbuglit ("ctype_getCtbase: elips marker"); | |
2539 | ||
2540 | llfatalbug (message ("ctype_getCtbase: ctype out of range: %d", c)); | |
2541 | BADEXIT; | |
2542 | } | |
2543 | ||
2544 | /*@=enumint@*/ | |
2545 | } | |
2546 | ||
2547 | static /*@notnull@*/ /*@observer@*/ ctbase | |
2548 | ctype_getCtbaseSafe (ctype c) | |
2549 | { | |
2550 | ctbase res = ctype_getCtbase (c); | |
2551 | ||
2552 | llassert (ctbase_isDefined (res)); | |
2553 | return res; | |
2554 | } | |
2555 | ||
2556 | /* | |
2557 | ** ctentry | |
2558 | */ | |
2559 | ||
2560 | static ctentry | |
2561 | ctype_getCtentry (ctype c) | |
2562 | { | |
2563 | static /*@only@*/ ctentry errorEntry = NULL; | |
2564 | ||
2565 | if (cttab.size == 0) | |
2566 | { | |
2567 | if (errorEntry == NULL) | |
2568 | { | |
2569 | errorEntry = ctentry_makeNew (CTK_UNKNOWN, ctbase_undefined); | |
2570 | } | |
2571 | ||
2572 | return errorEntry; | |
2573 | } | |
2574 | ||
2575 | /*@+enumint@*/ | |
2576 | if (c >= CTK_PLAIN && c < cttab.size) | |
2577 | { | |
2578 | return (cttab.entries[c]); | |
2579 | } | |
2580 | else if (c == CTK_UNKNOWN) | |
2581 | llcontbuglit ("ctype_getCtentry: ctype unknown"); | |
2582 | else if (c == CTK_INVALID) | |
2583 | llcontbuglit ("ctype_getCtentry: ctype invalid (ctype_undefined)"); | |
2584 | else if (c == CTK_DNE) | |
2585 | llcontbuglit ("ctype_getCtentry: ctype dne"); | |
2586 | else if (c == CTK_ELIPS) | |
2587 | llcontbuglit ("ctype_getCtentry: ctype elipsis"); | |
2588 | else if (c == CTK_MISSINGPARAMS) | |
2589 | llcontbuglit ("ctype_getCtentry: ctype missing params"); | |
2590 | else | |
2591 | llbug (message ("ctype_getCtentry: ctype out of range: %d", c)); | |
2592 | ||
2593 | return (cttab.entries[ctype_unknown]); | |
2594 | /*@=enumint@*/ | |
2595 | } | |
2596 | ||
616915dd | 2597 | /*drl 11/28/2000 */ |
2598 | /* requires that the type is an fixed array */ | |
2599 | /* return the size of the array */ | |
2600 | ||
2601 | long int ctype_getArraySize (ctype c) | |
2602 | { | |
28bf4b0b | 2603 | long int size; |
616915dd | 2604 | ctentry cte = ctype_getCtentry (c); |
2605 | ctbase ctb; | |
2606 | llassert ( (ctentry_getKind (cte) == CTK_COMPLEX) || (ctentry_getKind(cte) == CTK_ARRAY) ); | |
2607 | ||
2608 | ctb = cte->ctbase; | |
2609 | ||
28bf4b0b | 2610 | size = ctbase_getArraySize (ctb); |
616915dd | 2611 | |
28bf4b0b | 2612 | DPRINTF(( message("ctype_getArraySize: got fixed array size of %d ", (int)size) )); |
2613 | return size; | |
616915dd | 2614 | } |
28bf4b0b | 2615 |