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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 | ||
2c88d156 | 173 | if (ctype_isElips (c) || ctype_isMissingParamsMarker (c)) |
174 | { | |
175 | return c; | |
176 | } | |
177 | ||
616915dd | 178 | if (ctype_isUA (c)) |
179 | { | |
180 | r = uentry_getRealType (usymtab_getTypeEntry (ctype_typeId (c))); | |
181 | } | |
182 | ||
183 | if (ctype_isManifestBool (r)) | |
184 | { | |
185 | if (context_canAccessBool ()) | |
186 | { | |
187 | r = context_boolImplementationType (); | |
188 | } | |
189 | } | |
190 | ||
191 | return r; | |
192 | } | |
193 | ||
194 | bool | |
195 | ctype_isSimple (ctype c) | |
196 | { | |
197 | return (!(ctype_isPointer (c) | |
198 | || ctype_isArray (c) | |
199 | || ctype_isFunction (c))); | |
200 | } | |
201 | ||
202 | ctype | |
203 | ctype_forceRealType (ctype c) | |
204 | { | |
205 | ctype r = c; | |
206 | ||
207 | if (ctype_isUA (c)) | |
208 | { | |
209 | r = uentry_getForceRealType (usymtab_getTypeEntry (ctype_typeId (c))); | |
210 | } | |
211 | ||
212 | return r; | |
213 | } | |
214 | ||
215 | ctype | |
216 | ctype_realishType (ctype c) | |
217 | { | |
218 | if (ctype_isUA (c)) | |
219 | { | |
220 | if (ctype_isManifestBool (c)) | |
221 | { | |
222 | return ctype_bool; | |
223 | } | |
224 | else | |
225 | { | |
226 | ctype r = uentry_getRealType (usymtab_getTypeEntry | |
227 | (ctype_typeId (c))); | |
228 | return (r); | |
229 | } | |
230 | } | |
231 | ||
232 | return c; | |
233 | } | |
234 | ||
235 | bool | |
236 | ctype_isUA (ctype c) | |
237 | { | |
28bf4b0b | 238 | return (!ctype_isUnknown (c) && ctbase_isUA (ctype_getCtbase (c))); |
616915dd | 239 | } |
240 | ||
241 | bool | |
242 | ctype_isUser (ctype c) | |
243 | { | |
28bf4b0b | 244 | return (!ctype_isUnknown (c) && ctbase_isUser (ctype_getCtbase (c))); |
616915dd | 245 | } |
246 | ||
247 | bool | |
248 | ctype_isAbstract (ctype c) | |
249 | { | |
28bf4b0b | 250 | return (!ctype_isUnknown (c) |
251 | && ((ctype_isPlain (c) && ctbase_isAbstract (ctype_getCtbaseSafe (c))) || | |
252 | (ctype_isConj (c) && | |
253 | (ctype_isAbstract (ctype_getConjA (c)) | |
254 | || ctype_isAbstract (ctype_getConjB (c)))))); | |
255 | } | |
256 | ||
257 | bool | |
258 | ctype_isImmutableAbstract (ctype t) | |
259 | { | |
260 | return (ctype_isAbstract (t) && !ctype_isMutable (t)); | |
616915dd | 261 | } |
262 | ||
263 | bool | |
264 | ctype_isRealAbstract (ctype c) | |
265 | { | |
266 | return (ctype_isAbstract (ctype_realType (c)) || | |
267 | (ctype_isConj (c) && | |
268 | (ctype_isRealAbstract (ctype_getConjA (c)) || | |
269 | ctype_isRealAbstract (ctype_getConjB (c))))); | |
270 | } | |
271 | ||
272 | /* | |
273 | ** primitive creators | |
274 | */ | |
275 | ||
276 | /* | |
277 | ** createPrim not necessary --- subsumed by ctype_int, etc. | |
278 | */ | |
279 | ||
280 | /* | |
281 | ** ctbase_unknown --- removed argument | |
282 | */ | |
283 | ||
284 | /* | |
285 | ** derived types: | |
286 | ** requires: if DerivedType (T) exists in cttable, then T->derivedType is it. | |
287 | */ | |
288 | ||
289 | ctype | |
290 | ctype_makePointer (ctype c) | |
291 | { | |
292 | if (c == ctype_char) | |
293 | { | |
294 | return ctype_string; | |
295 | } | |
296 | else if (c == ctype_void) | |
297 | { | |
298 | return ctype_voidPointer; | |
299 | } | |
300 | else | |
301 | { | |
302 | ctentry cte = ctype_getCtentry (c); | |
303 | ctype clp = ctentry_getPtr (cte); | |
304 | ||
305 | if /*@+enumint@*/ (clp == CTK_DNE) /*@=enumint@*/ | |
306 | { | |
307 | ctype cnew = cttable_addDerived (CTK_PTR, ctbase_makePointer (c), c); | |
308 | ctentry_setPtr (cte, cnew); | |
28bf4b0b | 309 | return (cnew); |
616915dd | 310 | } |
311 | else | |
312 | { | |
28bf4b0b | 313 | return clp; |
616915dd | 314 | } |
315 | } | |
316 | } | |
317 | ||
318 | ctype ctype_makeFixedArray (ctype c, long size) | |
319 | { | |
320 | return (cttable_addDerived (CTK_ARRAY, ctbase_makeFixedArray (c, size), c)); | |
321 | } | |
322 | ||
323 | ctype | |
324 | ctype_makeArray (ctype c) | |
325 | { | |
326 | ctentry cte = ctype_getCtentry (c); | |
327 | ctype clp = ctentry_getArray (cte); | |
328 | ||
329 | if /*@+enumint@*/ (clp == CTK_DNE) /*@=enumint@*/ | |
330 | { | |
331 | ctype cnew = cttable_addDerived (CTK_ARRAY, ctbase_makeArray (c), c); | |
332 | ctentry_setArray (cte, cnew); | |
333 | return (cnew); | |
334 | } | |
335 | else | |
336 | return clp; | |
337 | } | |
338 | ||
339 | /* | |
340 | ** requires c is a pointer of array | |
341 | */ | |
342 | ||
343 | ctype | |
344 | ctype_baseArrayPtr (ctype c) | |
345 | { | |
346 | ctentry cte = ctype_getCtentry (ctype_realType (c)); | |
347 | ||
348 | if (ctype_isConj (c)) | |
349 | { | |
350 | if (ctype_isAP (ctype_getConjA (c))) | |
351 | { | |
352 | if (ctype_isAP (ctype_getConjB (c))) | |
353 | { | |
354 | return (ctype_makeConj (ctype_baseArrayPtr (ctype_getConjA (c)), | |
355 | ctype_baseArrayPtr (ctype_getConjB (c)))); | |
356 | } | |
357 | else | |
358 | { | |
359 | return (ctype_baseArrayPtr (ctype_getConjA (c))); | |
360 | } | |
361 | } | |
362 | else | |
363 | { | |
364 | return (ctype_baseArrayPtr (ctype_getConjB (c))); | |
365 | } | |
366 | } | |
367 | else if (ctype_isInt (c)) /* could be NULL */ | |
368 | { | |
369 | return ctype_unknown; | |
370 | } | |
371 | else | |
372 | { | |
373 | ctype clp = ctentry_getBase (cte); | |
374 | ||
375 | if (ctype_isBroken (clp)) | |
376 | { | |
377 | llbuglit ("ctype_baseArrayPtr: bogus ctype"); | |
378 | } | |
379 | ||
380 | return clp; | |
381 | } | |
382 | } | |
383 | ||
384 | ctype | |
28bf4b0b | 385 | ctype_getReturnType (ctype c) |
616915dd | 386 | { |
28bf4b0b | 387 | if (ctype_isUnknown (c)) |
388 | { | |
389 | return ctype_unknown; | |
390 | } | |
391 | ||
616915dd | 392 | return (ctbase_baseFunction (ctype_getCtbaseSafe (c))); |
393 | } | |
394 | ||
395 | /* | |
396 | ** must be a shared pointer | |
397 | */ | |
398 | ||
399 | /*@observer@*/ uentryList | |
400 | ctype_argsFunction (ctype c) | |
401 | { | |
28bf4b0b | 402 | if (ctype_isUnknown (c)) |
403 | { | |
404 | return uentryList_undefined; | |
405 | } | |
406 | ||
616915dd | 407 | return (ctbase_argsFunction (ctype_getCtbaseSafe (c))); |
408 | } | |
409 | ||
410 | /* | |
411 | ** Returns type with base type p and compound types from c. | |
412 | ** | |
413 | ** i.e., c = char *[]; p = int | |
414 | ** => int *[] | |
415 | */ | |
416 | ||
417 | ctype | |
418 | ctype_newBase (ctype c, ctype p) | |
419 | { | |
420 | return (ctbase_newBase (c, p)); | |
421 | } | |
422 | ||
423 | bool | |
424 | ctype_sameAltTypes (ctype c1, ctype c2) | |
425 | { | |
426 | ctype c1a, c2a; | |
427 | ctype c1b, c2b; | |
428 | ||
429 | llassert (ctype_isConj (c1) && ctype_isConj (c2)); | |
430 | ||
431 | c1a = ctype_getConjA (c1); | |
432 | c2a = ctype_getConjA (c2); | |
433 | ||
434 | c1b = ctype_getConjB (c1); | |
435 | c2b = ctype_getConjB (c2); | |
436 | ||
437 | if (ctype_compare (c1a, c2a) == 0) | |
438 | { | |
439 | if (ctype_compare (c1b, c2b) == 0) | |
440 | { | |
441 | return TRUE; | |
442 | } | |
443 | else | |
444 | { | |
445 | if (ctype_isConj (c1b) && ctype_isConj (c2b)) | |
446 | { | |
447 | return ctype_sameAltTypes (c1b, c2b); | |
448 | } | |
449 | else | |
450 | { | |
451 | return FALSE; | |
452 | } | |
453 | } | |
454 | } | |
455 | else | |
456 | { | |
457 | if (ctype_compare (c1a, c2b) == 0) | |
458 | { | |
459 | if (ctype_compare (c1b, c2a) == 0) | |
460 | { | |
461 | return TRUE; | |
462 | } | |
463 | else | |
464 | { | |
465 | if (ctype_isConj (c1b) && ctype_isConj (c2a)) | |
466 | { | |
467 | return ctype_sameAltTypes (c1b, c2a); | |
468 | } | |
469 | else | |
470 | { | |
471 | return FALSE; | |
472 | } | |
473 | } | |
474 | } | |
475 | else | |
476 | { | |
477 | return FALSE; | |
478 | } | |
479 | } | |
480 | } | |
481 | ||
482 | int | |
483 | ctype_compare (ctype c1, ctype c2) | |
484 | { | |
485 | ctentry ce1; | |
486 | ctentry ce2; | |
487 | ||
28bf4b0b | 488 | if (ctype_isUnknown (c1)) |
489 | { | |
490 | if (ctype_isUnknown (c2)) | |
491 | { | |
492 | return 0; | |
493 | } | |
494 | else | |
495 | { | |
496 | return 1; | |
497 | } | |
498 | } | |
499 | ||
500 | if (ctype_isUnknown (c2)) | |
501 | { | |
502 | return -1; | |
503 | } | |
504 | ||
616915dd | 505 | /* Can't get entries for special ctypes (elips marker) */ |
506 | ||
507 | if (ctype_isElips (c1) || ctype_isElips (c2) | |
508 | || ctype_isMissingParamsMarker (c1) || ctype_isMissingParamsMarker (c2)) { | |
509 | return int_compare (c1, c2); | |
510 | } | |
511 | ||
512 | ce1 = ctype_getCtentry (c1); | |
513 | ce2 = ctype_getCtentry (c2); | |
514 | ||
515 | if (ctentry_isComplex (ce1)) | |
516 | { | |
517 | if (ctentry_isComplex (ce2)) | |
518 | { | |
519 | return (ctbase_compare (ctype_getCtbase (c1), | |
520 | ctype_getCtbase (c2), FALSE)); | |
521 | } | |
522 | else | |
523 | { | |
524 | return 1; | |
525 | } | |
526 | } | |
527 | else if (ctentry_isComplex (ce2)) | |
528 | { | |
529 | return -1; | |
530 | } | |
531 | else | |
532 | { | |
533 | return (int_compare (c1, c2)); | |
534 | } | |
535 | } | |
536 | ||
537 | /* | |
538 | ** complex types | |
539 | */ | |
540 | ||
541 | /* | |
542 | ** makeFunction: pointer to function returning base | |
543 | */ | |
544 | ||
545 | ctype | |
546 | ctype_makeParamsFunction (ctype base, /*@only@*/ uentryList p) | |
547 | { | |
548 | uentryList_fixImpParams (p); | |
549 | return (ctype_makeFunction (base, p)); | |
550 | } | |
551 | ||
552 | ctype | |
553 | ctype_makeNFParamsFunction (ctype base, /*@only@*/ uentryList p) | |
554 | { | |
555 | uentryList_fixImpParams (p); | |
556 | return (ctbase_makeNFFunction (base, p)); | |
557 | } | |
558 | ||
559 | ctype | |
560 | ctype_makeFunction (ctype base, /*@only@*/ uentryList p) | |
561 | { | |
562 | ctype ret; | |
563 | ret = ctbase_makeFunction (base, p); | |
564 | return (ret); | |
565 | } | |
566 | ||
567 | ctype ctype_expectFunction (ctype c) | |
568 | { | |
569 | /* handle parenthesized declarations */ | |
570 | ||
571 | if (!ctype_isAP (c)) | |
572 | { | |
573 | c = ctype_makePointer (c); | |
574 | } | |
575 | ||
576 | return (cttable_addComplex (ctbase_expectFunction (c))); | |
577 | } | |
578 | ||
579 | /* | |
580 | ** makeRealFunction: function returning base | |
581 | */ | |
582 | ||
28bf4b0b | 583 | ctype ctype_makeRawFunction (ctype base, uentryList p) |
616915dd | 584 | { |
28bf4b0b | 585 | return (cttable_addComplex (ctbase_makeLiveFunction (base, p))); |
616915dd | 586 | } |
587 | ||
588 | /* | |
589 | ** plain predicates | |
590 | */ | |
591 | ||
592 | /*** | |
593 | **** this is very poorly defined | |
594 | **** | |
595 | **** need to unify function/function pointer meaning | |
596 | ***/ | |
597 | ||
598 | bool | |
599 | ctype_isFunction (ctype c) | |
600 | { | |
28bf4b0b | 601 | if (ctype_isKnown (c) && ctype_isDefined (c)) |
602 | { | |
603 | return (ctbase_isFunction (ctype_getCtbase (c))); | |
604 | } | |
605 | else | |
606 | { | |
607 | return FALSE; | |
608 | } | |
616915dd | 609 | } |
610 | ||
611 | bool | |
612 | ctype_isExpFcn (ctype c) | |
613 | { | |
28bf4b0b | 614 | return (ctype_isKnown (c) && ctbase_isExpFcn (ctype_getCtbase (c))); |
616915dd | 615 | } |
616 | ||
617 | bool | |
618 | ctype_isVoid (ctype c) | |
619 | { | |
620 | return (c == CTX_VOID); | |
621 | } | |
622 | ||
623 | bool | |
624 | ctype_isArbitraryIntegral (ctype c) | |
625 | { | |
626 | ctype cr = ctype_realType (c); | |
627 | ||
628 | return (cr == ctype_anyintegral || cr == ctype_unsignedintegral | |
629 | || cr == ctype_signedintegral); | |
630 | } | |
631 | ||
632 | bool | |
633 | ctype_isUnsignedIntegral (ctype c) | |
634 | { | |
635 | ctype cr = ctype_realType (c); | |
636 | ||
637 | return (cr == ctype_unsignedintegral); | |
638 | } | |
639 | ||
640 | bool | |
641 | ctype_isSignedIntegral (ctype c) | |
642 | { | |
643 | ctype cr = ctype_realType (c); | |
644 | ||
645 | return (cr == ctype_signedintegral); | |
646 | } | |
647 | ||
648 | bool | |
649 | ctype_isInt (ctype c) | |
650 | { | |
651 | cprim cp = ctype_toCprim (c); | |
652 | ||
653 | return (c == ctype_unknown || cprim_isAnyInt (cp) | |
654 | || (cprim_isAnyChar (cp) && context_msgCharInt ()) | |
655 | || (c == ctype_bool && context_msgBoolInt ()) | |
656 | || (ctype_isEnum (c) && context_msgEnumInt ())); | |
657 | } | |
658 | ||
659 | bool | |
660 | ctype_isRegularInt (ctype c) | |
661 | { | |
662 | cprim cp = ctype_toCprim (c); | |
663 | ||
664 | return (c == ctype_unknown | |
665 | || cprim_closeEnough (cprim_int, cp) | |
666 | || (cprim_isAnyChar (cp) && context_msgCharInt ()) | |
667 | || (c == ctype_bool && context_msgBoolInt ()) | |
668 | || (ctype_isEnum (c) && context_msgEnumInt ())); | |
669 | } | |
670 | ||
671 | bool | |
672 | ctype_isString (ctype c) | |
673 | { | |
674 | return (c == ctype_string | |
675 | || (ctype_isPointer (c) | |
676 | && ctype_isChar (ctype_baseArrayPtr (c)))); | |
677 | } | |
678 | ||
679 | bool | |
680 | ctype_isChar (ctype c) | |
681 | { | |
682 | return ((c == ctype_unknown) || (cprim_isAnyChar (ctype_toCprim (c))) | |
683 | || (context_getFlag (FLG_CHARINT) && ctype_isInt (c))); | |
684 | } | |
685 | ||
686 | bool | |
687 | ctype_isUnsignedChar (ctype c) | |
688 | { | |
689 | return ((c == ctype_unknown) || (cprim_isUnsignedChar (ctype_toCprim (c)))); | |
690 | } | |
691 | ||
692 | bool | |
693 | ctype_isSignedChar (ctype c) | |
694 | { | |
695 | return ((c == ctype_unknown) || (cprim_isSignedChar (ctype_toCprim (c)))); | |
696 | } | |
697 | ||
698 | /* | |
699 | ** Returns true if c matches the name -booltype <bool> | |
700 | */ | |
701 | ||
702 | bool | |
703 | ctype_isManifestBool (ctype c) | |
704 | { | |
705 | /* | |
706 | ** Changed the meaning of ctype_isBool - evs 2000-07-24 | |
707 | ** The old meaning was very convoluted! | |
708 | ** | |
709 | ** c is a bool if: | |
710 | ** c == CTX_BOOL - its a direct bool | |
711 | ** c is a user/abstract type matching the bool name | |
712 | ** (should never occur?) | |
713 | */ | |
714 | ||
715 | if (ctype_isDirectBool (c)) { | |
716 | return TRUE; | |
717 | } else if (ctype_isUA (c)) { | |
718 | return ctype_isUserBool (c); | |
719 | } else { | |
720 | return FALSE; | |
721 | } | |
722 | } | |
723 | ||
724 | bool | |
725 | ctype_isBool (ctype c) | |
726 | { | |
727 | /* | |
728 | ** Changed the meaning of ctype_isBool - evs 2000-07-24 | |
729 | ** The old meaning was very convoluted! | |
730 | ** | |
731 | ** c is a bool if: | |
732 | ** its a manifest bool | |
733 | ** +boolint and ctype_isInt (c) | |
734 | */ | |
735 | ||
736 | if (ctype_isManifestBool (c)) { | |
737 | return TRUE; | |
738 | } else if (context_msgBoolInt ()) { | |
739 | return ctype_isInt (c); | |
740 | } else { | |
741 | return FALSE; | |
742 | } | |
743 | ||
744 | # if 0 | |
745 | if (context_getFlag (FLG_ABSTRACTBOOL)) | |
746 | { | |
747 | if (typeId_isInvalid (boolType)) | |
748 | { | |
749 | boolType = usymtab_getTypeId (context_getBoolName ()); | |
750 | } | |
751 | ||
752 | if (context_hasAccess (boolType)) | |
753 | { | |
754 | return (((c == CTX_UNKNOWN) || (c == CTX_BOOL) | |
755 | || (context_msgBoolInt () | |
756 | && (c == CTX_INT | |
757 | || (c == CTX_CHAR && context_msgCharInt ())))) | |
758 | || ctype_isInt (c)); | |
759 | } | |
760 | } | |
761 | ||
762 | return ((c == CTX_UNKNOWN) || (c == CTX_BOOL) | |
763 | || (context_msgBoolInt () | |
764 | && (c == CTX_INT || (c == CTX_CHAR && context_msgCharInt ())))); | |
765 | # endif | |
766 | } | |
767 | ||
768 | bool | |
769 | ctype_isDirectBool (ctype c) | |
770 | { | |
771 | return (c == CTX_BOOL); | |
772 | } | |
773 | ||
774 | bool | |
775 | ctype_isReal (ctype c) | |
776 | { | |
777 | return (cprim_isAnyReal (ctype_toCprim (c))); | |
778 | } | |
779 | ||
780 | bool | |
781 | ctype_isFloat (ctype c) | |
782 | { | |
783 | return (c == ctype_float); | |
784 | } | |
785 | ||
786 | bool | |
787 | ctype_isDouble (ctype c) | |
788 | { | |
789 | return (c == ctype_double || c == ctype_ldouble); | |
790 | } | |
791 | ||
792 | bool | |
793 | ctype_isSigned (ctype c) | |
794 | { | |
795 | return (!ctype_isUnsigned (c)); | |
796 | } | |
797 | ||
798 | bool | |
799 | ctype_isNumeric (ctype c) | |
800 | { | |
801 | return (ctype_isInt (c) || ctype_isReal (c) || ctype_isEnum (c)); | |
802 | } | |
803 | ||
804 | ||
805 | /* | |
806 | ** real predicates | |
807 | ** | |
808 | ** work on actual type in current context | |
809 | */ | |
810 | ||
811 | bool | |
812 | ctype_isRealNumeric (ctype c) | |
813 | { | |
814 | if (ctype_isPlain (c)) | |
815 | return (ctype_isNumeric (ctype_realType (c))); | |
816 | if (ctype_isConj (c)) | |
817 | return (ctype_isRealNumeric (ctype_getConjA (c)) || | |
818 | ctype_isRealNumeric (ctype_getConjB (c))); | |
819 | else | |
820 | return FALSE; | |
821 | } | |
822 | ||
823 | bool | |
824 | ctype_isRealInt (ctype c) | |
825 | { | |
826 | if (ctype_isPlain (c)) | |
827 | return (ctype_isInt (ctype_realType (c))); | |
828 | else if (ctype_isConj (c)) | |
829 | return (ctype_isRealInt (ctype_getConjA (c)) || | |
830 | ctype_isRealInt (ctype_getConjB (c))); | |
831 | else | |
832 | { | |
833 | if (ctype_isEnum (c) && context_msgEnumInt ()) return TRUE; | |
834 | return FALSE; | |
835 | } | |
836 | } | |
837 | ||
838 | bool | |
839 | ctype_isRealVoid (ctype c) | |
840 | { | |
841 | if (ctype_isPlain (c)) | |
842 | { | |
843 | return (ctype_isVoid (ctype_realType (c))); | |
844 | } | |
845 | else if (ctype_isConj (c)) | |
846 | { | |
847 | return (ctype_isRealVoid (ctype_getConjA (c)) || | |
848 | ctype_isRealVoid (ctype_getConjB (c))); | |
849 | } | |
850 | else | |
851 | { | |
852 | return FALSE; | |
853 | } | |
854 | } | |
855 | ||
856 | bool | |
857 | ctype_isRealBool (ctype c) | |
858 | { | |
859 | if (ctype_isPlain (c)) | |
860 | { | |
861 | return (ctype_isBool (ctype_realishType (c))); | |
862 | } | |
863 | else if (ctype_isConj (c)) | |
864 | { | |
865 | return (ctype_isRealBool (ctype_getConjA (c)) || | |
866 | ctype_isRealBool (ctype_getConjB (c))); | |
867 | } | |
868 | else | |
869 | { | |
870 | return FALSE; | |
871 | } | |
872 | } | |
873 | ||
874 | bool | |
875 | ctype_isRealPointer (ctype c) | |
876 | { | |
877 | if (ctype_isConj (c)) | |
878 | return (ctype_isRealPointer (ctype_getConjA (c)) || | |
879 | ctype_isRealPointer (ctype_getConjB (c))); | |
880 | return (ctype_isPointer (ctype_realType (c))); | |
881 | } | |
882 | ||
883 | bool | |
884 | ctype_isRealSU (ctype c) | |
885 | { | |
886 | if (ctype_isConj (c)) | |
887 | { | |
888 | return (ctype_isRealSU (ctype_getConjA (c)) || | |
889 | ctype_isRealSU (ctype_getConjB (c))); | |
890 | } | |
28bf4b0b | 891 | |
892 | DPRINTF (("Real su: %s / %s", ctype_unparse (c), ctype_unparse (ctype_realType (c)))); | |
616915dd | 893 | return (ctype_isStructorUnion (ctype_realType (c))); |
894 | } | |
895 | ||
896 | bool | |
897 | ctype_isRealArray (ctype c) | |
898 | { | |
899 | if (ctype_isConj (c)) | |
900 | return (ctype_isRealArray (ctype_getConjA (c)) || | |
901 | ctype_isRealArray (ctype_getConjB (c))); | |
902 | return (ctype_isArray (ctype_realType (c))); | |
903 | } | |
904 | ||
905 | bool | |
906 | ctype_isRealAP (ctype c) | |
907 | { | |
908 | if (ctype_isConj (c)) | |
909 | return (ctype_isRealAP (ctype_getConjA (c)) || | |
910 | ctype_isRealAP (ctype_getConjB (c))); | |
911 | return (ctype_isAP (ctype_realType (c))); | |
912 | } | |
913 | ||
914 | bool | |
915 | ctype_isRealFunction (ctype c) | |
916 | { | |
917 | if (ctype_isConj (c)) | |
918 | return (ctype_isRealFunction (ctype_getConjA (c)) || | |
919 | ctype_isRealFunction (ctype_getConjB (c))); | |
920 | return (ctype_isFunction (ctype_realType (c))); | |
921 | } | |
922 | ||
923 | bool | |
924 | ctype_isDirectInt (ctype c) | |
925 | { | |
926 | return (c == CTX_INT || c == CTX_UINT || c == CTX_SINT || c == CTX_ULINT || c == CTX_USINT); | |
927 | } | |
928 | ||
929 | /* | |
930 | ** forceful predicates | |
931 | ** | |
932 | ** take *ctype; if its a conjunct, and there is a match replace with match only. | |
933 | ** if both match, still conjunct | |
934 | */ | |
935 | ||
936 | static bool | |
937 | ctype_isForcePred (ctype * c, bool (pred) (ctype)) | |
938 | { | |
939 | if (ctype_isConj (*c)) | |
940 | { | |
941 | ctype cbr = ctype_getConjA (*c); | |
942 | ||
943 | if ((*pred) (cbr)) | |
944 | { | |
945 | if ((*pred) (ctype_getConjB (*c))) | |
946 | { | |
947 | ; | |
948 | } | |
949 | else | |
950 | { | |
951 | *c = cbr; | |
952 | } | |
953 | ||
954 | return TRUE; | |
955 | } | |
956 | else | |
957 | { | |
958 | if ((*pred) (cbr = ctype_getConjB (*c))) | |
959 | { | |
960 | *c = cbr; | |
961 | return TRUE; | |
962 | } | |
963 | } | |
964 | } | |
965 | ||
966 | return ((*pred) (*c)); | |
967 | } | |
968 | ||
969 | bool | |
970 | ctype_isForceRealNumeric (ctype * c) | |
971 | { | |
972 | return (ctype_isForcePred (c, ctype_isRealNumeric)); | |
973 | } | |
974 | ||
975 | bool | |
976 | ctype_isForceRealInt (ctype * c) | |
977 | { | |
978 | return (ctype_isForcePred (c, ctype_isRealInt)); | |
979 | } | |
980 | ||
981 | bool | |
982 | ctype_isForceRealBool (ctype * c) | |
983 | { | |
984 | return (ctype_isForcePred (c, ctype_isRealBool)); | |
985 | } | |
986 | ||
987 | /* | |
988 | ** conjuncts | |
989 | ** | |
990 | ** save int/char, int/bool, other random conjuncts | |
991 | */ | |
992 | ||
993 | static ctype | |
994 | ctype_makeConjAux (ctype c1, ctype c2, bool isExplicit) | |
995 | { | |
996 | if (ctype_isBogus (c1) || ctype_isUndefined (c1)) | |
997 | { | |
998 | return c2; | |
999 | } | |
1000 | else if (ctype_isBogus (c2) || ctype_isUndefined (c2)) | |
1001 | { | |
1002 | return c1; | |
1003 | } | |
1004 | else | |
1005 | { | |
1006 | if (isExplicit) | |
1007 | { | |
1008 | return (ctype_makeExplicitConj (c1, c2)); | |
1009 | } | |
1010 | else | |
1011 | { | |
1012 | return (ctype_makeConj (c1, c2)); | |
1013 | } | |
1014 | } | |
1015 | } | |
1016 | ||
1017 | ctype | |
1018 | ctype_makeExplicitConj (ctype c1, ctype c2) | |
1019 | { | |
1020 | if (ctype_isFunction (c1) && !ctype_isFunction (c2)) | |
1021 | { | |
28bf4b0b | 1022 | ctype ret = ctype_makeExplicitConj (ctype_getReturnType (c1), c2); |
616915dd | 1023 | |
1024 | return ctype_makeFunction (ret, uentryList_copy (ctype_getParams (c1))); | |
1025 | } | |
1026 | else if (ctype_isFunction (c2) && !ctype_isFunction (c1)) | |
1027 | { | |
28bf4b0b | 1028 | ctype ret = ctype_makeExplicitConj (c1, ctype_getReturnType (c2)); |
616915dd | 1029 | |
1030 | return ctype_makeFunction (ret, uentryList_copy (ctype_getParams (c2))); | |
1031 | } | |
1032 | else | |
1033 | { | |
1034 | return (cttable_addComplex (ctbase_makeConj (c1, c2, TRUE))); | |
1035 | } | |
1036 | } | |
1037 | ||
1038 | static ctype ic = ctype_unknown; /* int | char */ | |
1039 | static ctype ib = ctype_unknown; /* int | bool */ | |
1040 | static ctype ifl = ctype_unknown; /* int | float */ | |
1041 | static ctype ibf = ctype_unknown; /* int | bool | float */ | |
1042 | static ctype ibc = ctype_unknown; /* int | bool | char */ | |
1043 | static ctype iv = ctype_unknown; /* int | void * */ | |
1044 | static ctype ivf = ctype_unknown; /* int | void * | float */ | |
1045 | static ctype ivb = ctype_unknown; /* int | void * | bool */ | |
1046 | static ctype ivbf = ctype_unknown; /* int | void * | bool | float */ | |
1047 | static ctype cuc = ctype_unknown; /* char | unsigned char */ | |
1048 | ||
1049 | static void | |
1050 | ctype_recordConj (ctype c) | |
1051 | { | |
1052 | ctype c1, c2; | |
1053 | ||
1054 | llassert (ctype_isConj (c)); | |
1055 | ||
1056 | c1 = ctype_getConjA (c); | |
1057 | c2 = ctype_getConjB (c); | |
1058 | ||
1059 | /* No, can't swap! | |
1060 | if (c2 == ctype_int && c1 != ctype_int) | |
1061 | { | |
1062 | ctype tmp; | |
1063 | ||
1064 | tmp = c1; | |
1065 | c1 = c2; | |
1066 | c2 = tmp; | |
1067 | } | |
1068 | */ | |
1069 | ||
1070 | if (c1 == ctype_int) | |
1071 | { | |
1072 | if (c2 == ctype_char) | |
1073 | { | |
1074 | llassert (ic == ctype_unknown); | |
1075 | ic = c; | |
1076 | } | |
1077 | else if (c2 == ctype_bool) | |
1078 | { | |
1079 | llassert (ib == ctype_unknown); | |
1080 | ib = c; | |
1081 | } | |
1082 | else if (c2 == ctype_float) | |
1083 | { | |
1084 | llassert (ifl == ctype_unknown); | |
1085 | ifl = c; | |
1086 | } | |
1087 | else if (c2 == CTP_VOID) | |
1088 | { | |
1089 | llassert (iv == ctype_unknown); | |
1090 | iv = c; | |
1091 | } | |
1092 | else | |
1093 | { | |
1094 | /* not special */ | |
1095 | } | |
1096 | } | |
1097 | else if (c1 == ib && ib != ctype_unknown) | |
1098 | { | |
1099 | if (c2 == ctype_float) | |
1100 | { | |
1101 | llassert (ibf == ctype_unknown); | |
1102 | ibf = c; | |
1103 | } | |
1104 | else if (c2 == ctype_char) | |
1105 | { | |
1106 | llassert (ibc == ctype_unknown); | |
1107 | ibc = c; | |
1108 | } | |
1109 | else | |
1110 | { | |
1111 | /* not special */ | |
1112 | } | |
1113 | } | |
1114 | else if (c1 == iv) | |
1115 | { | |
1116 | if (c2 == ctype_bool) | |
1117 | { | |
1118 | llassert (ivb == ctype_unknown); | |
1119 | ivb = c; | |
1120 | } | |
1121 | else if (c2 == ctype_float) | |
1122 | { | |
1123 | llassert (ivf == ctype_unknown); | |
1124 | ivf = c; | |
1125 | } | |
1126 | else | |
1127 | { | |
1128 | /* not special */ | |
1129 | } | |
1130 | } | |
1131 | else if (c1 == ivf) | |
1132 | { | |
1133 | if (c2 == ctype_bool) | |
1134 | { | |
1135 | llassert (ivbf == ctype_unknown); | |
1136 | ivbf = c; | |
1137 | } | |
1138 | } | |
1139 | else if (c1 == ivb) | |
1140 | { | |
1141 | if (c2 == ctype_float) | |
1142 | { | |
1143 | llassert (ivbf == ctype_unknown); | |
1144 | ivbf = c; | |
1145 | } | |
1146 | } | |
1147 | else if (c1 == ctype_char) | |
1148 | { | |
1149 | if (c2 == ctype_uchar) | |
1150 | { | |
1151 | llassert (cuc == ctype_unknown); | |
1152 | ||
1153 | cuc = c; | |
1154 | } | |
1155 | } | |
1156 | else | |
1157 | { | |
1158 | /* not special */ | |
1159 | } | |
1160 | } | |
1161 | ||
1162 | ctype | |
1163 | ctype_makeConj (ctype c1, ctype c2) | |
1164 | { | |
1165 | /* no: can have unsigned long @alt long@: llassert (c1 != c2); */ | |
1166 | ||
1167 | DPRINTF (("Make conj: %s / %s", ctype_unparse (c1), ctype_unparse (c2))); | |
1168 | ||
28bf4b0b | 1169 | if (ctype_isUnknown (c1)) |
616915dd | 1170 | { |
28bf4b0b | 1171 | return c2; |
1172 | } | |
1173 | else if (ctype_isUnknown (c2)) | |
1174 | { | |
1175 | return c1; | |
1176 | } | |
1177 | else if (ctype_isFunction (c1) && !ctype_isFunction (c2)) | |
1178 | { | |
1179 | ctype ret = ctype_makeConj (ctype_getReturnType (c1), c2); | |
616915dd | 1180 | return ctype_makeFunction (ret, uentryList_copy (ctype_getParams (c1))); |
1181 | } | |
1182 | else if (ctype_isFunction (c2) && !ctype_isFunction (c1)) | |
1183 | { | |
28bf4b0b | 1184 | ctype ret = ctype_makeConj (c1, ctype_getReturnType (c2)); |
616915dd | 1185 | return ctype_makeFunction (ret, uentryList_copy (ctype_getParams (c2))); |
1186 | } | |
1187 | else | |
1188 | { | |
1189 | if (ctype_isManifestBool (c1)) | |
1190 | { | |
1191 | c1 = ctype_bool; | |
1192 | } | |
1193 | ||
1194 | if (ctype_isManifestBool (c2)) | |
1195 | { | |
1196 | c2 = ctype_bool; | |
1197 | } | |
1198 | ||
1199 | if (ctbase_isVoidPointer (ctype_getCtbaseSafe (c1))) | |
1200 | { | |
1201 | c1 = ctype_voidPointer; | |
1202 | } | |
1203 | ||
1204 | if (ctbase_isVoidPointer (ctype_getCtbaseSafe (c2))) | |
1205 | { | |
1206 | c2 = ctype_voidPointer; | |
1207 | } | |
1208 | ||
1209 | /* | |
1210 | ** Ouch, can't do this. unsigned, etc. modifiers might | |
1211 | ** apply to wrong type! | |
1212 | ** | |
1213 | ** if (c2 == ctype_int && c1 != ctype_int) | |
1214 | ** { | |
1215 | ** ctype tmp; | |
1216 | ** | |
1217 | ** tmp = c1; | |
1218 | ** c1 = c2; | |
1219 | ** c2 = tmp; | |
1220 | ** } | |
1221 | ** | |
1222 | */ | |
1223 | ||
1224 | if (c1 == ctype_int) | |
1225 | { | |
1226 | if (c2 == ctype_char) | |
1227 | { | |
1228 | if (ic == ctype_unknown) | |
1229 | { | |
1230 | ic = cttable_addComplex (ctbase_makeConj (ctype_int, ctype_char, FALSE)); | |
1231 | } | |
1232 | ||
1233 | return ic; | |
1234 | } | |
1235 | else if (c2 == ctype_bool) | |
1236 | { | |
1237 | if (ib == ctype_unknown) | |
1238 | { | |
1239 | ib = cttable_addComplex | |
1240 | (ctbase_makeConj (ctype_int, ctype_bool, FALSE)); | |
1241 | } | |
1242 | ||
1243 | return ib; | |
1244 | } | |
1245 | else if (c2 == ctype_float) | |
1246 | { | |
1247 | if (ifl == ctype_unknown) | |
1248 | { | |
1249 | ifl = cttable_addComplex (ctbase_makeConj (ctype_int, ctype_float, FALSE)); | |
1250 | } | |
1251 | ||
1252 | return ifl; | |
1253 | } | |
1254 | else | |
1255 | { | |
1256 | if (c2 == ctype_voidPointer) | |
1257 | { | |
1258 | if (iv == ctype_unknown) | |
1259 | { | |
1260 | iv = cttable_addComplex | |
1261 | (ctbase_makeConj (ctype_int, | |
1262 | ctype_voidPointer, | |
1263 | FALSE)); | |
1264 | } | |
1265 | ||
1266 | return iv; | |
1267 | } | |
1268 | } | |
1269 | } | |
1270 | else if (c1 == ib && ib != ctype_unknown) | |
1271 | { | |
1272 | if (c2 == ctype_float) | |
1273 | { | |
1274 | if (ibf == ctype_unknown) | |
1275 | { | |
1276 | ibf = cttable_addComplex (ctbase_makeConj (ib, ctype_float, FALSE)); | |
1277 | } | |
1278 | ||
1279 | return ibf; | |
1280 | } | |
1281 | else if (c2 == ctype_char) | |
1282 | { | |
1283 | if (ibc == ctype_unknown) | |
1284 | { | |
1285 | ibc = cttable_addComplex (ctbase_makeConj (ib, ctype_char, FALSE)); | |
1286 | } | |
1287 | ||
1288 | return ibc; | |
1289 | } | |
1290 | else | |
1291 | { | |
1292 | ; | |
1293 | } | |
1294 | } | |
1295 | else if (c1 == iv) | |
1296 | { | |
1297 | if (c2 == ctype_bool) | |
1298 | { | |
1299 | if (ivb == ctype_unknown) | |
1300 | { | |
1301 | ivb = cttable_addComplex (ctbase_makeConj (c1, c2, FALSE)); | |
1302 | } | |
1303 | ||
1304 | return ivb; | |
1305 | } | |
1306 | else if (c2 == ctype_float) | |
1307 | { | |
1308 | if (ivf == ctype_unknown) | |
1309 | { | |
1310 | ivf = cttable_addComplex (ctbase_makeConj (c1, c2, FALSE)); | |
1311 | } | |
1312 | ||
1313 | return ivf; | |
1314 | } | |
1315 | else | |
1316 | { | |
1317 | ; | |
1318 | } | |
1319 | } | |
1320 | else if (c1 == ivf) | |
1321 | { | |
1322 | if (c2 == ctype_bool) | |
1323 | { | |
1324 | if (ivbf == ctype_unknown) | |
1325 | { | |
1326 | ivbf = cttable_addComplex (ctbase_makeConj (c1, c2, FALSE)); | |
1327 | } | |
1328 | ||
1329 | return ivbf; | |
1330 | } | |
1331 | } | |
1332 | else if (c1 == ivb) | |
1333 | { | |
1334 | if (c2 == ctype_float) | |
1335 | { | |
1336 | if (ivbf == ctype_unknown) | |
1337 | { | |
1338 | ivbf = cttable_addComplex (ctbase_makeConj (c1, c2, FALSE)); | |
1339 | } | |
1340 | ||
1341 | return ivbf; | |
1342 | } | |
1343 | } | |
1344 | else if (c1 == ctype_char) | |
1345 | { | |
1346 | if (c2 == ctype_uchar) | |
1347 | { | |
1348 | if (cuc == ctype_unknown) | |
1349 | { | |
1350 | cuc = cttable_addComplex (ctbase_makeConj (c1, c2, FALSE)); | |
1351 | } | |
1352 | ||
1353 | return cuc; | |
1354 | } | |
1355 | } | |
1356 | else | |
1357 | { | |
1358 | ; | |
1359 | } | |
1360 | ||
1361 | ||
1362 | return (cttable_addComplex (ctbase_makeConj (c1, c2, FALSE))); | |
1363 | } | |
1364 | } | |
1365 | ||
1366 | ||
1367 | bool | |
1368 | ctype_isConj (ctype c) | |
1369 | { | |
1370 | return (ctype_isComplex (c) && ctbase_isConj (ctype_getCtbase (c))); | |
1371 | } | |
1372 | ||
1373 | static ctype | |
1374 | ctype_getConjA (ctype c) | |
1375 | { | |
1376 | if (!ctype_isConj (c)) | |
1377 | llbuglit ("ctype_getConjA: not a conj"); | |
1378 | return (ctbase_getConjA (ctype_getCtbaseSafe (c))); | |
1379 | } | |
1380 | ||
1381 | static ctype | |
1382 | ctype_getConjB (ctype c) | |
1383 | { | |
1384 | if (!ctype_isConj (c)) | |
1385 | llbuglit ("ctype_getConjB: not a conj"); | |
1386 | return (ctbase_getConjB (ctype_getCtbaseSafe (c))); | |
1387 | } | |
1388 | ||
1389 | static bool | |
1390 | ctype_isExplicitConj (ctype c) | |
1391 | { | |
1392 | return (ctype_isConj (c) && ctbase_isExplicitConj (ctype_getCtbaseSafe (c))); | |
1393 | } | |
1394 | ||
1395 | /** << need to fix resolveConj >> **/ | |
1396 | ||
1397 | /* | |
1398 | ** structs and unions | |
1399 | */ | |
1400 | ||
1401 | ctype | |
1402 | ctype_createStruct (/*@only@*/ cstring n, /*@only@*/ uentryList f) | |
1403 | { | |
1404 | ctype ct; | |
1405 | ||
1406 | DPRINTF (("Creating a struct: %s / %s", | |
1407 | n, uentryList_unparse (f))); | |
1408 | ||
1409 | ct = cttable_addComplex (ctbase_createStruct (n, f)); | |
1410 | DPRINTF (("ct: %s", ctype_unparse (ct))); | |
1411 | return (ct); | |
1412 | } | |
1413 | ||
1414 | uentryList | |
1415 | ctype_getFields (ctype c) | |
1416 | { | |
1417 | return (ctbase_getuentryList (ctype_getCtbaseSafe (c))); | |
1418 | } | |
1419 | ||
1420 | ctype | |
1421 | ctype_createUnion (/*@only@*/ cstring n, /*@only@*/ uentryList f) | |
1422 | { | |
1423 | ctype ret; | |
1424 | ||
1425 | ret = cttable_addComplex (ctbase_createUnion (n, f)); | |
1426 | return ret; | |
1427 | } | |
1428 | ||
1429 | /* | |
1430 | ** matching | |
1431 | ** | |
1432 | ** if ctype's are same, definite match. | |
1433 | ** else, need to call ctbase_match. | |
1434 | ** | |
1435 | ** if necessary context can memoize matches | |
1436 | */ | |
1437 | ||
1438 | static bool | |
1439 | quickMatch (ctype c1, ctype c2) | |
1440 | { | |
1441 | if (c1 == c2) | |
1442 | return TRUE; | |
1443 | ||
1444 | return FALSE; | |
1445 | } | |
1446 | ||
1447 | bool | |
1448 | ctype_genMatch (ctype c1, ctype c2, bool force, bool arg, bool def, bool deep) | |
1449 | { | |
1450 | bool match; | |
1451 | ||
1452 | DPRINTF (("Gen match: %s / %s arg: %s", ctype_unparse (c1), ctype_unparse (c2), bool_unparse (arg))); | |
1453 | ||
1454 | if (quickMatch (c1, c2)) | |
1455 | { | |
1456 | return TRUE; | |
1457 | } | |
1458 | ||
1459 | if (ctype_isElips (c1) || ctype_isElips (c2)) | |
1460 | { | |
1461 | return FALSE; | |
1462 | } | |
1463 | else | |
1464 | { | |
1465 | match = ctbase_genMatch (ctype_getCtbase (c1), ctype_getCtbase (c2), force, arg, def, deep); | |
1466 | return (match); | |
1467 | } | |
1468 | } | |
1469 | ||
1470 | bool | |
1471 | ctype_sameName (ctype c1, ctype c2) | |
1472 | { | |
1473 | if (quickMatch (c1, c2)) | |
1474 | return TRUE; | |
1475 | else | |
1476 | return (cstring_equal (ctype_unparse (c1), ctype_unparse (c2))); | |
1477 | } | |
1478 | ||
1479 | bool | |
1480 | ctype_almostEqual (ctype c1, ctype c2) | |
1481 | { | |
1482 | if (ctype_equal (c1, c2)) | |
1483 | { | |
1484 | return TRUE; | |
1485 | } | |
1486 | else | |
1487 | { | |
28bf4b0b | 1488 | if (ctype_isUnknown (c1)) |
1489 | { | |
1490 | return ctype_isUnknown (c2); | |
1491 | } | |
1492 | else if (ctype_isUnknown (c2)) | |
1493 | { | |
1494 | return FALSE; | |
1495 | } | |
1496 | else | |
1497 | { | |
1498 | return (ctbase_almostEqual (ctype_getCtbase (c1), ctype_getCtbase (c2))); | |
1499 | } | |
616915dd | 1500 | } |
1501 | } | |
1502 | ||
1503 | bool | |
1504 | ctype_matchDef (ctype c1, ctype c2) | |
1505 | { | |
1506 | DPRINTF (("Match def: %s / %s", ctype_unparse (c1), ctype_unparse (c2))); | |
1507 | ||
1508 | if (quickMatch (c1, c2)) | |
1509 | return TRUE; | |
1510 | ||
1511 | if (ctype_isElips (c1)) | |
1512 | return (ctype_isElips (c2) || ctype_isUnknown (c2)); | |
1513 | ||
1514 | if (ctype_isElips (c2)) | |
28bf4b0b | 1515 | { |
1516 | return (ctype_isUnknown (c2)); | |
1517 | } | |
616915dd | 1518 | else |
1519 | { | |
1520 | bool oldrelax = context_getFlag (FLG_RELAXQUALS); | |
1521 | bool res; | |
1522 | ||
1523 | context_setFlagTemp (FLG_RELAXQUALS, FALSE); | |
1524 | res = ctbase_matchDef (ctype_getCtbase (c1), ctype_getCtbase (c2)); | |
1525 | context_setFlagTemp (FLG_RELAXQUALS, oldrelax); | |
1526 | return res; | |
1527 | } | |
1528 | } | |
1529 | ||
1530 | bool ctype_match (ctype c1, ctype c2) | |
1531 | { | |
1532 | if (quickMatch (c1, c2)) | |
1533 | return TRUE; | |
1534 | ||
1535 | if (ctype_isElips (c1)) | |
1536 | return (ctype_isElips (c2) || ctype_isUnknown (c2)); | |
1537 | ||
1538 | if (ctype_isElips (c2)) | |
1539 | return (ctype_isUnknown (c2)); | |
1540 | ||
1541 | return (ctbase_match (ctype_getCtbase (c1), ctype_getCtbase (c2))); | |
1542 | } | |
1543 | ||
1544 | bool | |
1545 | ctype_forceMatch (ctype c1, ctype c2) | |
1546 | { | |
1547 | if (quickMatch (c1, c2)) | |
1548 | return TRUE; | |
1549 | ||
1550 | if (ctype_isElips (c1)) | |
1551 | return (ctype_isElips (c2)); | |
1552 | ||
1553 | if (ctype_isElips (c2)) | |
1554 | return FALSE; | |
1555 | ||
1556 | /*@-modobserver@*/ | |
1557 | /* The call forceMatch may modify the observer params, but, we don't care. */ | |
1558 | return (ctbase_forceMatch (ctype_getCtbase (c1), ctype_getCtbase (c2))); | |
1559 | /*@=modobserver@*/ | |
1560 | } | |
1561 | ||
1562 | bool | |
1563 | ctype_matchArg (ctype c1, ctype c2) | |
1564 | { | |
1565 | if (quickMatch (c1, c2)) | |
1566 | { | |
1567 | return TRUE; | |
1568 | } | |
1569 | else | |
1570 | { | |
1571 | return (ctbase_matchArg (ctype_getCtbase (c1), ctype_getCtbase (c2))); | |
1572 | } | |
1573 | } | |
1574 | ||
1575 | /* | |
1576 | ** simple ctype_is operations. | |
1577 | ** DO NOT use real type of c, only direct type. | |
1578 | */ | |
1579 | ||
1580 | /* | |
1581 | ** ctype_isVoidPointer | |
1582 | ** | |
1583 | ** void * | |
1584 | */ | |
1585 | ||
1586 | bool | |
1587 | ctype_isVoidPointer (ctype c) | |
1588 | { | |
1589 | if (ctype_isComplex (c)) | |
1590 | { | |
1591 | return ctbase_isVoidPointer (ctype_getCtbaseSafe (c)); | |
1592 | } | |
1593 | if (ctype_isConj (c)) | |
1594 | { | |
1595 | return (ctype_isVoidPointer (ctype_getConjA (c)) || | |
1596 | ctype_isVoidPointer (ctype_getConjB (c))); | |
1597 | } | |
1598 | else | |
1599 | { | |
1600 | return (c == ctype_voidPointer | |
1601 | || (ctype_isRealPointer (c) | |
1602 | && ctype_isVoid (ctype_baseArrayPtr (c)))); | |
1603 | } | |
1604 | } | |
1605 | ||
1606 | /* | |
1607 | ** ctype_isPointer | |
1608 | ** | |
1609 | ** true for C and LCL pointers | |
1610 | */ | |
1611 | ||
1612 | bool | |
1613 | ctype_isPointer (ctype c) | |
1614 | { | |
1615 | if (ctype_isElips (c)) return FALSE; | |
1616 | ||
1617 | if (ctype_isComplex (c)) | |
1618 | { | |
1619 | ctbase ctb = ctype_getCtbaseSafe (c); | |
1620 | bool res = ctbase_isPointer (ctb); | |
1621 | ||
1622 | return res; | |
1623 | } | |
1624 | else | |
1625 | { | |
1626 | bool res = ctentry_isPointer (ctype_getCtentry (c)); | |
1627 | ||
1628 | return res; | |
1629 | } | |
1630 | } | |
1631 | ||
1632 | /* | |
1633 | ** ctype_isArray | |
1634 | ** | |
1635 | ** true for C and LCL array's | |
1636 | */ | |
1637 | ||
1638 | bool | |
1639 | ctype_isArray (ctype c) | |
1640 | { | |
1641 | if (ctype_isElips (c)) return FALSE; | |
1642 | ||
1643 | if (ctype_isComplex (c)) | |
1644 | return (ctbase_isEitherArray (ctype_getCtbaseSafe (c))); | |
1645 | else | |
1646 | return (ctentry_isArray (ctype_getCtentry (c))); | |
1647 | } | |
1648 | ||
1649 | bool ctype_isIncompleteArray (ctype c) | |
1650 | { | |
1651 | return (ctype_isArray (c) && !ctype_isFixedArray (c)); | |
1652 | } | |
1653 | ||
1654 | bool ctype_isFixedArray (ctype c) | |
1655 | { | |
1656 | if (ctype_isElips (c)) return FALSE; | |
1657 | ||
1658 | return (ctbase_isFixedArray (ctype_getCtbaseSafe (c))); | |
1659 | } | |
1660 | ||
1661 | bool | |
1662 | ctype_isArrayPtr (ctype c) | |
1663 | { | |
1664 | return ((ctype_isArray (c)) || (ctype_isPointer (c))); | |
1665 | } | |
1666 | ||
1667 | typeId | |
1668 | ctype_typeId (ctype c) | |
1669 | { | |
1670 | return (ctbase_typeId (ctype_getCtbase (c))); | |
1671 | } | |
1672 | ||
1673 | cstring | |
1674 | ctype_unparseDeclaration (ctype c, /*@only@*/ cstring name) | |
1675 | { | |
1676 | llassert (!(ctype_isElips (c) || ctype_isMissingParamsMarker (c))); | |
28bf4b0b | 1677 | |
1678 | if (ctype_isUnknown (c)) | |
1679 | { | |
1680 | return message ("? %q", name); | |
1681 | } | |
1682 | else | |
1683 | { | |
1684 | return (ctbase_unparseDeclaration (ctype_getCtbase (c), name)); | |
1685 | } | |
616915dd | 1686 | } |
1687 | ||
1688 | cstring | |
1689 | ctype_unparse (ctype c) | |
1690 | { | |
1691 | if (ctype_isElips (c)) | |
1692 | { | |
1693 | return cstring_makeLiteralTemp ("..."); | |
1694 | } | |
1695 | else if (ctype_isMissingParamsMarker (c)) | |
1696 | { | |
1697 | return cstring_makeLiteralTemp ("-"); | |
1698 | } | |
28bf4b0b | 1699 | else if (ctype_isUnknown (c)) |
1700 | { | |
1701 | return cstring_makeLiteralTemp ("?"); | |
1702 | } | |
616915dd | 1703 | else |
1704 | { | |
1705 | /*@-modobserver@*/ | |
1706 | return (ctentry_doUnparse (ctype_getCtentry (c))); | |
1707 | /*@=modobserver@*/ | |
1708 | } | |
1709 | } | |
1710 | ||
1711 | cstring | |
1712 | ctype_unparseSafe (ctype c) | |
1713 | { | |
1714 | if (ctype_isElips (c)) | |
1715 | { | |
1716 | return cstring_makeLiteralTemp ("..."); | |
1717 | } | |
1718 | else if (ctype_isMissingParamsMarker (c)) | |
1719 | { | |
1720 | return cstring_makeLiteralTemp ("-"); | |
1721 | } | |
1722 | else | |
1723 | { | |
1724 | cstring ret; | |
1725 | ||
1726 | if /*@+enumint@*/ (c >= CTK_PLAIN && c < cttab.size) /*@=enumint@*/ | |
1727 | { | |
1728 | ctentry cte = ctype_getCtentry (c); | |
1729 | ||
1730 | if (cstring_isDefined (cte->unparse)) | |
1731 | { | |
1732 | return (cte->unparse); | |
1733 | } | |
1734 | } | |
1735 | ||
1736 | ret = message ("[%d]", (int) c); | |
1737 | cstring_markOwned (ret); | |
1738 | return ret; | |
1739 | } | |
1740 | } | |
1741 | ||
1742 | cstring | |
1743 | ctype_unparseDeep (ctype c) | |
1744 | { | |
1745 | if (ctype_isElips (c)) | |
1746 | { | |
1747 | return cstring_makeLiteralTemp ("..."); | |
1748 | } | |
1749 | if (ctype_isMissingParamsMarker (c)) | |
1750 | { | |
1751 | return cstring_makeLiteralTemp ("-"); | |
1752 | } | |
1753 | ||
1754 | return (ctentry_doUnparseDeep (ctype_getCtentry (c))); | |
1755 | } | |
1756 | ||
1757 | ctype | |
1758 | ctype_undump (char **c) | |
1759 | { | |
28bf4b0b | 1760 | return ((ctype) reader_getInt (c)); /* check its valid? */ |
616915dd | 1761 | } |
1762 | ||
1763 | cstring | |
1764 | ctype_dump (ctype c) | |
1765 | { | |
1766 | DPRINTF (("Ctype dump: %s", ctype_unparse (c))); | |
1767 | ||
1768 | if (c < 0) | |
1769 | { | |
1770 | /* Handle invalid types in a kludgey way. */ | |
1771 | return (message ("0")); | |
1772 | } | |
1773 | ||
1774 | if (ctype_isUA (c)) | |
1775 | { | |
1776 | cstring tname = usymtab_getTypeEntryName | |
1777 | (usymtab_convertId (ctype_typeId (c))); | |
1778 | ||
1779 | if (cstring_equal (tname, context_getBoolName ())) | |
1780 | { | |
1781 | cstring_free (tname); | |
1782 | return (message ("%d", ctype_bool)); | |
1783 | } | |
1784 | ||
1785 | cstring_free (tname); | |
1786 | } | |
1787 | ||
1788 | DPRINTF (("Returning: %d", c)); | |
1789 | return (message ("%d", c)); | |
1790 | } | |
1791 | ||
1792 | ctype | |
1793 | ctype_getBaseType (ctype c) | |
1794 | { | |
1795 | ctentry cte = ctype_getCtentry (c); | |
1796 | ||
1797 | switch (ctentry_getKind (cte)) | |
1798 | { | |
1799 | case CTK_UNKNOWN: | |
616915dd | 1800 | case CTK_INVALID: |
616915dd | 1801 | case CTK_PLAIN: |
1802 | return c; | |
1803 | case CTK_PTR: | |
1804 | case CTK_ARRAY: | |
1805 | return (ctype_getBaseType (ctype_baseArrayPtr (c))); | |
1806 | case CTK_COMPLEX: | |
1807 | { | |
1808 | ctbase ctb = cte->ctbase; | |
1809 | ||
1810 | if (ctbase_isDefined (ctb)) | |
1811 | { | |
28bf4b0b | 1812 | /*@access ctbase@*/ |
616915dd | 1813 | switch (ctb->type) |
1814 | { | |
1815 | case CT_UNKNOWN: | |
1816 | case CT_PRIM: | |
1817 | case CT_USER: | |
1818 | case CT_ENUM: | |
1819 | case CT_ENUMLIST: | |
1820 | case CT_BOOL: | |
1821 | case CT_ABST: | |
1822 | case CT_FCN: | |
1823 | case CT_STRUCT: | |
1824 | case CT_UNION: | |
1825 | case CT_EXPFCN: | |
1826 | return c; | |
1827 | case CT_PTR: | |
1828 | case CT_ARRAY: | |
1829 | return (ctype_getBaseType (ctb->contents.base)); | |
1830 | case CT_FIXEDARRAY: | |
1831 | return (ctype_getBaseType (ctb->contents.farray->base)); | |
1832 | case CT_CONJ: /* base type of A conj branch? */ | |
1833 | return (ctype_getBaseType (ctb->contents.conj->a)); | |
1834 | } | |
28bf4b0b | 1835 | /*@noaccess ctbase@*/ |
616915dd | 1836 | } |
1837 | else | |
1838 | { | |
1839 | return c; | |
1840 | } | |
1841 | } | |
1842 | default: | |
1843 | llbuglit ("ctype_newBase: bad case"); | |
1844 | } | |
1845 | llcontbuglit ("ctype_getBaseType: unreachable code"); | |
1846 | return ((ctype)NULL); | |
1847 | } | |
1848 | ||
1849 | ctype | |
1850 | ctype_adjustPointers (int np, ctype c) | |
1851 | { | |
1852 | ||
1853 | if (ctype_isFunction (c)) | |
1854 | { | |
1855 | c = ctype_makeParamsFunction | |
28bf4b0b | 1856 | (ctype_adjustPointers (np, ctype_getReturnType (c)), |
616915dd | 1857 | uentryList_copy (ctype_argsFunction (c))); |
1858 | } | |
1859 | else | |
1860 | { | |
1861 | /* fix this should not use getBaseType ??? */ | |
1862 | ctype cb = ctype_getBaseType (c); | |
1863 | ||
1864 | while (np > 0) | |
1865 | { | |
1866 | cb = ctype_makePointer (cb); | |
1867 | np--; | |
1868 | } | |
1869 | c = ctype_newBase (c, cb); | |
1870 | } | |
1871 | ||
1872 | return (c); | |
1873 | } | |
1874 | ||
1875 | ||
1876 | enumNameList | |
1877 | ctype_elist (ctype c) | |
1878 | { | |
1879 | return (ctbase_elist (ctype_getCtbase (c))); | |
1880 | } | |
1881 | ||
1882 | bool | |
1883 | ctype_isFirstVoid (ctype c) | |
1884 | { | |
1885 | return (c == CTX_VOID || (ctype_isConj (c) && ctype_isFirstVoid (ctype_getConjA (c)))); | |
1886 | } | |
1887 | ||
1888 | ctype | |
1889 | ctype_createEnum (/*@keep@*/ cstring tag, /*@keep@*/ enumNameList el) | |
1890 | { | |
1891 | return (cttable_addComplex (ctbase_createEnum (tag, el))); | |
1892 | } | |
1893 | ||
1894 | bool | |
1895 | ctype_isEnum (ctype c) | |
1896 | { | |
1897 | return (ctype_isComplex (c) && ctbase_isEnum (ctype_getCtbase (c))); | |
1898 | } | |
1899 | ||
1900 | cstring | |
1901 | ctype_enumTag (ctype c) | |
1902 | { | |
1903 | llassert (ctype_isEnum (c)); | |
1904 | ||
1905 | return (ctbase_enumTag (ctype_getCtbaseSafe (c))); | |
1906 | } | |
1907 | ||
1908 | bool | |
1909 | ctype_isStruct (ctype c) | |
1910 | { | |
1911 | return (ctype_isComplex (c) && ctbase_isStruct (ctype_getCtbaseSafe (c))); | |
1912 | } | |
1913 | ||
1914 | bool | |
1915 | ctype_isUnion (ctype c) | |
1916 | { | |
1917 | return (ctype_isComplex (c) && ctbase_isUnion (ctype_getCtbaseSafe (c))); | |
1918 | } | |
1919 | ||
1920 | ctype | |
1921 | ctype_resolveNumerics (ctype c1, ctype c2) | |
1922 | { | |
1923 | /* | |
1924 | ** returns longest type of c1 and c2 | |
1925 | */ | |
1926 | ||
1927 | if (c1 == c2) return c1; | |
1928 | ||
1929 | c1 = ctype_realType (c1); | |
1930 | c2 = ctype_realType (c2); | |
1931 | ||
1932 | if (ctype_isEnum (c1)) c1 = ctype_unknown; | |
1933 | if (ctype_isEnum (c2)) c2 = ctype_int; | |
1934 | ||
1935 | if (c1 == ctype_ldouble || c2 == ctype_ldouble) return ctype_ldouble; | |
28bf4b0b | 1936 | |
1937 | /* 2001-06-08: This fix provided by Jim Zelenka. */ | |
1938 | if (c1 == ctype_llint || c2 == ctype_llint) return ctype_llint; | |
1939 | if (c1 == ctype_ullint || c2 == ctype_ullint) return ctype_ullint; | |
1940 | ||
616915dd | 1941 | if (c1 == ctype_ulint || c2 == ctype_ulint) return ctype_ulint; |
1942 | if (c1 == ctype_lint || c2 == ctype_lint) return ctype_lint; | |
1943 | if (c1 == ctype_uint || c2 == ctype_uint) return ctype_uint; | |
1944 | if (c1 == ctype_int || c2 == ctype_int) return ctype_int; | |
28bf4b0b | 1945 | |
1946 | /* 2001-06-08: This fix provided by Jim Zelenka. */ | |
1947 | if (c1 == ctype_usint || c2 == ctype_usint) return ctype_usint; | |
1948 | ||
616915dd | 1949 | if (c1 == ctype_sint || c2 == ctype_sint) return ctype_sint; |
28bf4b0b | 1950 | |
616915dd | 1951 | if (c1 == ctype_uchar || c2 == ctype_uchar) return ctype_uchar; |
1952 | if (c1 == ctype_char || c2 == ctype_char) return ctype_char; | |
1953 | ||
1954 | if (ctype_isKnown (c1)) return c1; | |
1955 | else return c2; | |
1956 | } | |
1957 | ||
1958 | bool | |
1959 | ctype_isStructorUnion (ctype c) | |
1960 | { | |
1961 | return (ctype_isStruct (c) || ctype_isUnion (c)); | |
1962 | } | |
1963 | ||
1964 | ctype | |
1965 | ctype_fixArrayPtr (ctype c) | |
1966 | { | |
1967 | if (ctype_isArray (c)) | |
1968 | { | |
1969 | return (ctype_makePointer (ctype_baseArrayPtr (c))); | |
1970 | } | |
1971 | else | |
1972 | return c; | |
1973 | } | |
1974 | ||
1975 | /* | |
1976 | ** createUnnamedStruct/Union | |
1977 | ** | |
1978 | ** check if it corresponds to an existing LCL-specified unnamed struct | |
1979 | ** otherwise, give it a new tag | |
1980 | */ | |
1981 | ||
1982 | ctype | |
1983 | ctype_createUnnamedStruct (/*@only@*/ uentryList f) | |
1984 | { | |
1985 | ctype ret = usymtab_structFieldsType (f); | |
1986 | ||
28bf4b0b | 1987 | DPRINTF (("unnamed struct: %s", ctype_unparse (ret))); |
1988 | ||
616915dd | 1989 | if (ctype_isDefined (ret)) |
1990 | { | |
1991 | uentryList_free (f); | |
1992 | return ret; | |
1993 | } | |
1994 | else | |
1995 | { | |
1996 | cstring ft = fakeTag (); | |
1997 | ctype ct = ctype_createStruct (cstring_copy (ft), f); | |
1998 | uentry ue = uentry_makeStructTagLoc (ft, ct); | |
28bf4b0b | 1999 | |
2000 | DPRINTF (("Unnamed struct: %s", uentry_unparseFull (ue))); | |
2001 | ue = usymtab_supGlobalEntryReturn (ue); | |
2002 | DPRINTF (("After Unnamed struct: %s", uentry_unparseFull (ue))); | |
2003 | ||
616915dd | 2004 | cstring_free (ft); |
2005 | return (ct); | |
2006 | } | |
2007 | } | |
2008 | ||
2009 | ctype | |
2010 | ctype_createUnnamedUnion (/*@only@*/ uentryList f) | |
2011 | { | |
2012 | ctype ret = usymtab_unionFieldsType (f); | |
2013 | ||
2014 | if (ctype_isDefined (ret)) | |
2015 | { | |
2016 | uentryList_free (f); | |
2017 | return ret; | |
2018 | } | |
2019 | else | |
2020 | { | |
2021 | cstring ft = fakeTag (); | |
2022 | ctype ct = ctype_createUnion (cstring_copy (ft), f); | |
2023 | uentry ue = uentry_makeUnionTagLoc (ft, ct); | |
2024 | ||
2025 | usymtab_supGlobalEntry (ue); | |
2026 | cstring_free (ft); | |
2027 | return (ct); | |
2028 | } | |
2029 | } | |
2030 | ||
28bf4b0b | 2031 | bool |
2032 | ctype_isUnnamedSU (ctype c) | |
2033 | { | |
2034 | if (ctype_isSU (c)) | |
2035 | { | |
2036 | return ctbase_isUnnamedSU (ctype_getCtbase (c)); | |
2037 | } | |
2038 | else | |
2039 | { | |
2040 | return FALSE; | |
2041 | } | |
2042 | } | |
2043 | ||
616915dd | 2044 | ctype |
2045 | ctype_createForwardStruct (cstring n) | |
2046 | { | |
2047 | uentry ue = uentry_makeStructTag (n, ctype_unknown, fileloc_undefined); | |
2048 | ctype ct = usymtab_supForwardTypeEntry (ue); | |
2049 | ||
2050 | cstring_free (n); | |
2051 | return (ct); | |
2052 | } | |
2053 | ||
2054 | ctype | |
2055 | ctype_createForwardUnion (cstring n) | |
2056 | { | |
2057 | uentry ue = uentry_makeUnionTag (n, ctype_unknown, fileloc_undefined); | |
2058 | ctype ct = usymtab_supForwardTypeEntry (ue); | |
2059 | ||
2060 | cstring_free (n); | |
2061 | return (ct); | |
2062 | } | |
2063 | ||
2064 | ctype | |
2065 | ctype_removePointers (ctype c) | |
2066 | { | |
2067 | ctype oldc; | |
2068 | ||
28bf4b0b | 2069 | while (ctype_isKnown (c) && ctype_isArrayPtr (c)) |
616915dd | 2070 | { |
2071 | oldc = c; | |
2072 | c = ctype_baseArrayPtr (c); | |
2073 | llassert (c != oldc); | |
2074 | } | |
2075 | ||
2076 | return (c); | |
2077 | } | |
2078 | ||
2079 | bool ctype_isMutable (ctype t) | |
2080 | { | |
2081 | if (ctype_isUA (t)) | |
2082 | { | |
2083 | return (uentry_isMutableDatatype | |
2084 | (usymtab_getTypeEntry (ctype_typeId (t)))); | |
2085 | } | |
2086 | else | |
2087 | { | |
2088 | return (ctype_isPointer (ctype_realType (t))); | |
28bf4b0b | 2089 | /*!! || ctype_isStructorUnion (ctype_realType (t))); */ |
616915dd | 2090 | } |
2091 | } | |
2092 | ||
2093 | bool ctype_isRefCounted (ctype t) | |
2094 | { | |
2095 | if (ctype_isUA (t)) | |
2096 | { | |
2097 | return (uentry_isRefCountedDatatype | |
2098 | (usymtab_getTypeEntry (ctype_typeId (t)))); | |
2099 | } | |
2100 | ||
2101 | return FALSE; | |
2102 | } | |
2103 | ||
2104 | bool ctype_isVisiblySharable (ctype t) | |
2105 | { | |
2106 | if (ctype_isUnknown (t)) return TRUE; | |
2107 | ||
2108 | if (ctype_isConj (t)) | |
2109 | { | |
2110 | return (ctype_isVisiblySharable (ctype_getConjA (t)) | |
2111 | || ctype_isVisiblySharable (ctype_getConjB (t))); | |
2112 | } | |
2113 | ||
2114 | if (ctype_isMutable (t)) | |
2115 | { | |
2116 | if (ctype_isUA (t)) | |
2117 | { | |
2118 | ctype rt = ctype_realType (t); | |
2119 | ||
2120 | if (rt == t) | |
2121 | { | |
2122 | return TRUE; | |
2123 | } | |
2124 | else | |
2125 | { | |
2126 | return ctype_isVisiblySharable (rt); | |
28bf4b0b | 2127 | |
616915dd | 2128 | } |
2129 | } | |
2130 | else | |
2131 | { | |
2132 | return TRUE; | |
2133 | } | |
2134 | } | |
2135 | ||
2136 | return FALSE; | |
2137 | } | |
2138 | ||
2139 | # if 0 | |
2140 | /* Replaced by ctype_isMutable (more sensible) */ | |
2141 | bool ctype_canAlias (ctype ct) | |
2142 | { | |
2143 | /* can ct refer to memory locations? | |
2144 | ** ==> a pointer or a mutable abstract type | |
2145 | ** arrays? | |
2146 | */ | |
2147 | ||
2148 | ctype tr = ctype_realType (ct); | |
2149 | ||
2150 | return (ctype_isPointer (tr) || ctype_isMutable (ct) || ctype_isStructorUnion (tr)); | |
2151 | } | |
2152 | # endif | |
2153 | ||
2154 | /* | |
2155 | ** c1 is the dominant type; c2 is the modifier type | |
2156 | ** | |
2157 | ** eg. double + long int => long double | |
2158 | */ | |
2159 | ||
2160 | ctype ctype_combine (ctype dominant, ctype modifier) | |
2161 | { | |
2162 | DPRINTF (("Combine: %s + %s", | |
2163 | ctype_unparse (dominant), | |
2164 | ctype_unparse (modifier))); | |
2165 | ||
2166 | if (ctype_isConj (dominant)) | |
2167 | { | |
2168 | ctype res; | |
2169 | ||
2170 | if (ctype_isExplicitConj (dominant)) | |
2171 | { | |
2172 | res = ctype_makeExplicitConj (ctype_combine (ctype_getConjA (dominant), | |
2173 | modifier), | |
2174 | ctype_getConjB (dominant)); | |
2175 | } | |
2176 | else | |
2177 | { | |
2178 | res = ctype_makeConj (ctype_combine (ctype_getConjA (dominant), | |
2179 | modifier), | |
2180 | ctype_getConjB (dominant)); | |
2181 | } | |
2182 | ||
2183 | return res; | |
2184 | } | |
2185 | ||
2186 | if (ctype_isUnknown (modifier)) | |
2187 | { | |
2188 | return dominant; | |
2189 | } | |
2190 | else if (ctype_isUnknown (dominant)) | |
2191 | { | |
2192 | return modifier; | |
2193 | } | |
2194 | else | |
2195 | { | |
2196 | if (ctype_isEnum (dominant)) dominant = ctype_int; | |
2197 | if (ctype_isEnum (modifier)) modifier = ctype_int; | |
2198 | ||
2199 | if (modifier == ctype_uint) | |
2200 | { | |
2201 | if (dominant == ctype_int) return ctype_uint; | |
2202 | if (dominant == ctype_lint) return ctype_ulint; | |
2203 | if (dominant == ctype_sint) return ctype_usint; | |
2204 | if (dominant == ctype_char) return ctype_uchar; | |
2205 | ||
2206 | /* evs 2000-07-28: added this line */ | |
2207 | if (dominant == ctype_llint) return ctype_ullint; | |
2208 | ||
2209 | if ((dominant == ctype_uint) || dominant == ctype_uchar) | |
2210 | { | |
2211 | voptgenerror (FLG_DUPLICATEQUALS, | |
2212 | message ("Duplicate unsigned qualifier"), | |
2213 | g_currentloc); | |
2214 | ||
2215 | return ctype_uint; | |
2216 | } | |
2217 | else | |
2218 | { | |
2219 | voptgenerror (FLG_DUPLICATEQUALS, | |
2220 | message ("Type qualifier unsigned used with %s", | |
2221 | ctype_unparse (dominant)), | |
2222 | g_currentloc); | |
2223 | ||
2224 | return dominant; | |
2225 | } | |
2226 | } | |
2227 | else if (modifier == ctype_llint) | |
2228 | { | |
2229 | if (dominant == ctype_int) | |
2230 | { | |
2231 | return ctype_llint; | |
2232 | } | |
2233 | ||
2234 | voptgenerror (FLG_DUPLICATEQUALS, | |
2235 | message ("Duplicate long qualifier on non-int"), | |
2236 | g_currentloc); | |
2237 | } | |
2238 | else if (modifier == ctype_lint) | |
2239 | { | |
2240 | if (dominant == ctype_int) return ctype_lint; | |
2241 | if (dominant == ctype_uint) return ctype_ulint; | |
2242 | if (dominant == ctype_double) return ctype_ldouble; | |
2243 | ||
2244 | if (dominant == ctype_lint || dominant == ctype_ulint | |
2245 | || dominant == ctype_sint || dominant == ctype_usint | |
2246 | || dominant == ctype_ldouble) | |
2247 | { | |
2248 | if (dominant == ctype_lint) | |
2249 | { | |
2250 | /* long long not supported by ANSI */ | |
2251 | return ctype_llint; | |
2252 | } | |
2253 | ||
28bf4b0b | 2254 | /* ++jimz */ |
2255 | if (dominant == ctype_ulint) | |
2256 | { | |
2257 | /* unsigned long long not supported by ANSI */ | |
2258 | return ctype_ullint; | |
2259 | } | |
2260 | /* ==jimz */ | |
2261 | ||
616915dd | 2262 | if (dominant == ctype_sint || dominant == ctype_usint) |
2263 | { | |
2264 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2265 | { | |
2266 | llerrorlit (FLG_SYNTAX, | |
2267 | "Contradictory long and short type qualifiers"); | |
2268 | } | |
2269 | } | |
2270 | else | |
2271 | { | |
2272 | voptgenerror (FLG_DUPLICATEQUALS, | |
2273 | message ("Duplicate long qualifier"), | |
2274 | g_currentloc); | |
2275 | } | |
2276 | ||
2277 | return ctype_lint; | |
2278 | } | |
2279 | } | |
2280 | else if (modifier == ctype_sint) | |
2281 | { | |
2282 | if (dominant == ctype_int) return ctype_sint; | |
2283 | if (dominant == ctype_uint) return ctype_usint; | |
2284 | ||
2285 | if (dominant == ctype_sint || dominant == ctype_usint) | |
2286 | { | |
2287 | voptgenerror (FLG_DUPLICATEQUALS, | |
2288 | message ("Duplicate short qualifier"), | |
2289 | g_currentloc); | |
2290 | return ctype_uint; | |
2291 | } | |
2292 | else if (dominant == ctype_lint) | |
2293 | { | |
2294 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2295 | { | |
2296 | llerrorlit (FLG_SYNTAX, | |
2297 | "Contradictory long and short type qualifiers"); | |
2298 | } | |
2299 | ||
2300 | return dominant; | |
2301 | } | |
28bf4b0b | 2302 | /* ++jimz */ |
2303 | else if (dominant == ctype_llint) | |
2304 | { | |
2305 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2306 | { | |
2307 | llerrorlit (FLG_SYNTAX, | |
2308 | "Contradictory long long and short type qualifiers"); | |
2309 | } | |
2310 | ||
2311 | return dominant; | |
2312 | } | |
2313 | /* ==jimz */ | |
616915dd | 2314 | else |
2315 | { | |
2316 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2317 | { | |
2318 | llerror (FLG_SYNTAX, | |
2319 | message ("Type qualifier short used with %s", | |
2320 | ctype_unparse (dominant))); | |
2321 | } | |
2322 | ||
2323 | return dominant; | |
2324 | } | |
2325 | } | |
2326 | else if (modifier == ctype_ulint) | |
2327 | { | |
2328 | if (dominant == ctype_int) return modifier; | |
2329 | ||
2330 | if (dominant == ctype_lint || dominant == ctype_ulint) | |
2331 | { | |
2332 | voptgenerror (FLG_DUPLICATEQUALS, | |
2333 | message ("Duplicate long qualifier"), | |
2334 | g_currentloc); | |
2335 | ||
2336 | return modifier; | |
2337 | } | |
2338 | ||
2339 | if (dominant == ctype_uint || dominant == ctype_usint) | |
2340 | { | |
2341 | voptgenerror (FLG_DUPLICATEQUALS, | |
2342 | message ("Duplicate unsigned qualifier"), | |
2343 | g_currentloc); | |
2344 | ||
2345 | return modifier; | |
2346 | } | |
2347 | ||
2348 | if (dominant == ctype_sint || dominant == ctype_usint) | |
2349 | { | |
2350 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2351 | { | |
2352 | llerrorlit (FLG_SYNTAX, | |
2353 | "Contradictory long and short type qualifiers"); | |
2354 | } | |
2355 | ||
2356 | return dominant; | |
2357 | } | |
2358 | ||
2359 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2360 | { | |
2361 | llerror (FLG_SYNTAX, | |
2362 | message ("Type qualifiers unsigned long used with %s", | |
2363 | ctype_unparse (dominant))); | |
2364 | } | |
2365 | ||
2366 | return dominant; | |
2367 | } | |
2368 | else if (modifier == ctype_usint) | |
2369 | { | |
2370 | if (dominant == ctype_int) return modifier; | |
2371 | ||
2372 | if (dominant == ctype_sint || dominant == ctype_usint) | |
2373 | { | |
2374 | voptgenerror (FLG_DUPLICATEQUALS, | |
2375 | message ("Duplicate short qualifier"), | |
2376 | g_currentloc); | |
2377 | return modifier; | |
2378 | } | |
2379 | ||
2380 | if (dominant == ctype_uint) | |
2381 | { | |
2382 | voptgenerror (FLG_DUPLICATEQUALS, | |
2383 | message ("Duplicate unsigned qualifier"), | |
2384 | g_currentloc); | |
2385 | ||
2386 | return modifier; | |
2387 | } | |
2388 | ||
2389 | if (dominant == ctype_lint || dominant == ctype_ulint | |
2390 | || dominant == ctype_llint) | |
2391 | { | |
2392 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2393 | { | |
2394 | llerrorlit (FLG_SYNTAX, | |
2395 | "Contradictory long and short type qualifiers"); | |
2396 | } | |
2397 | ||
2398 | return dominant; | |
2399 | } | |
2400 | ||
2401 | if (!context_getFlag (FLG_IGNOREQUALS)) | |
2402 | { | |
2403 | llerror (FLG_SYNTAX, | |
2404 | message ("Type qualifiers unsigned short used with %s", | |
2405 | ctype_unparse (dominant))); | |
2406 | } | |
2407 | ||
2408 | return dominant; | |
2409 | } | |
2410 | else | |
2411 | { | |
2412 | ; | |
2413 | } | |
2414 | ||
2415 | return dominant; | |
2416 | } | |
2417 | } | |
2418 | ||
2419 | ctype ctype_resolve (ctype c) | |
2420 | { | |
2421 | if (ctype_isUnknown (c)) return ctype_int; | |
2422 | return c; | |
2423 | } | |
2424 | ||
2425 | ctype ctype_fromQual (qual q) | |
2426 | { | |
2427 | if (qual_isSigned (q)) return ctype_int; | |
2428 | if (qual_isUnsigned (q)) return ctype_uint; | |
2429 | if (qual_isLong (q)) return ctype_lint; | |
2430 | if (qual_isShort (q)) return ctype_sint; | |
2431 | ||
2432 | llcontbug (message ("ctype_fromQual: invalid qualifier: %s", qual_unparse (q))); | |
2433 | return ctype_unknown; | |
2434 | } | |
2435 | ||
2436 | bool | |
2437 | ctype_isAnyFloat (ctype c) | |
2438 | { | |
2439 | return (cprim_isAnyReal (ctype_toCprim (c))); | |
2440 | } | |
2441 | ||
2442 | bool | |
2443 | ctype_isUnsigned (ctype c) | |
2444 | { | |
2445 | if (ctype_isConj (c)) | |
2446 | return (ctype_isUnsigned (ctype_getConjA (c)) || | |
2447 | ctype_isUnsigned (ctype_getConjB (c))); | |
2448 | ||
2449 | return (c == ctype_uint || c == ctype_uchar | |
2450 | || c == ctype_usint || c == ctype_ulint | |
28bf4b0b | 2451 | || c == ctype_ullint |
616915dd | 2452 | || c == ctype_unsignedintegral); |
2453 | } | |
2454 | ||
28bf4b0b | 2455 | /* ++jimz */ |
2456 | static bool | |
2457 | ctype_isLongLong (ctype c) | |
2458 | { | |
2459 | if (ctype_isConj (c)) | |
2460 | return (ctype_isLongLong (ctype_getConjA (c)) || | |
2461 | ctype_isLongLong (ctype_getConjB (c))); | |
2462 | ||
2463 | return (c == ctype_llint || c == ctype_ullint); | |
2464 | } | |
2465 | /* ==jimz */ | |
2466 | ||
616915dd | 2467 | static bool |
2468 | ctype_isLong (ctype c) | |
2469 | { | |
2470 | if (ctype_isConj (c)) | |
2471 | return (ctype_isLong (ctype_getConjA (c)) || | |
2472 | ctype_isLong (ctype_getConjB (c))); | |
2473 | ||
2474 | return (c == ctype_lint || c == ctype_ulint); | |
2475 | } | |
2476 | ||
2477 | static bool | |
2478 | ctype_isShort (ctype c) | |
2479 | { | |
2480 | if (ctype_isConj (c)) | |
2481 | return (ctype_isShort (ctype_getConjA (c)) || | |
2482 | ctype_isShort (ctype_getConjB (c))); | |
2483 | ||
2484 | return (c == ctype_sint || c == ctype_usint); | |
2485 | } | |
2486 | ||
2487 | bool | |
2488 | ctype_isStackAllocated (ctype c) | |
2489 | { | |
2490 | ctype ct = ctype_realType (c); | |
2491 | ||
2492 | if (ctype_isConj (ct)) | |
2493 | return (ctype_isStackAllocated (ctype_getConjA (ct)) || | |
2494 | ctype_isStackAllocated (ctype_getConjB (ct))); | |
2495 | ||
2496 | return (ctype_isArray (c) || ctype_isSU (c)); | |
2497 | } | |
2498 | ||
2499 | static bool ctype_isMoreUnsigned (ctype c1, ctype c2) | |
2500 | { | |
2501 | return (ctype_isUnsigned (c1) && !ctype_isUnsigned (c2)); | |
2502 | } | |
2503 | ||
2504 | static bool ctype_isLonger (ctype c1, ctype c2) | |
2505 | { | |
28bf4b0b | 2506 | /* 2001-06-10: Fix for long long's provided by Jim Zelenka */ |
616915dd | 2507 | return ((ctype_isDouble (c1) && !ctype_isDouble (c2)) |
28bf4b0b | 2508 | || (ctype_isLongLong (c1) && !ctype_isLongLong (c2)) |
2509 | || (ctype_isLong (c1) | |
2510 | && (!ctype_isLong (c2)) && (!ctype_isLongLong (c2))) | |
616915dd | 2511 | || (ctype_isShort (c2) && !ctype_isShort (c1))); |
2512 | } | |
2513 | ||
2514 | ctype | |
2515 | ctype_widest (ctype c1, ctype c2) | |
2516 | { | |
28bf4b0b | 2517 | if (ctype_isMoreUnsigned (c2, c1) || ctype_isLonger (c2, c1)) |
616915dd | 2518 | { |
2519 | return c2; | |
2520 | } | |
2521 | else | |
2522 | { | |
2523 | return c1; | |
2524 | } | |
2525 | } | |
2526 | ||
28bf4b0b | 2527 | static /*@observer@*/ ctbase ctype_getCtbase (ctype c) |
2528 | { | |
2529 | /*@+enumint@*/ | |
2530 | if (c >= 0 && c < cttab.size) | |
2531 | { | |
2532 | return (cttab.entries[c]->ctbase); | |
2533 | } | |
2534 | else | |
2535 | { | |
2536 | if (c == ctype_unknown) | |
2537 | llbuglit ("ctype_getCtbase: ctype unknown"); | |
2538 | if (c == ctype_undefined) | |
2539 | llbuglit ("ctype_getCtbase: ctype undefined"); | |
2540 | if (c == ctype_dne) | |
2541 | llbuglit ("ctype_getCtbase: ctype dne"); | |
2542 | if (c == ctype_elipsMarker) | |
2543 | llbuglit ("ctype_getCtbase: elips marker"); | |
2544 | ||
2545 | llfatalbug (message ("ctype_getCtbase: ctype out of range: %d", c)); | |
2546 | BADEXIT; | |
2547 | } | |
2548 | ||
2549 | /*@=enumint@*/ | |
2550 | } | |
2551 | ||
2552 | static /*@notnull@*/ /*@observer@*/ ctbase | |
2553 | ctype_getCtbaseSafe (ctype c) | |
2554 | { | |
2555 | ctbase res = ctype_getCtbase (c); | |
2556 | ||
2557 | llassert (ctbase_isDefined (res)); | |
2558 | return res; | |
2559 | } | |
2560 | ||
2561 | /* | |
2562 | ** ctentry | |
2563 | */ | |
2564 | ||
2565 | static ctentry | |
2566 | ctype_getCtentry (ctype c) | |
2567 | { | |
2568 | static /*@only@*/ ctentry errorEntry = NULL; | |
2569 | ||
2570 | if (cttab.size == 0) | |
2571 | { | |
2572 | if (errorEntry == NULL) | |
2573 | { | |
2574 | errorEntry = ctentry_makeNew (CTK_UNKNOWN, ctbase_undefined); | |
2575 | } | |
2576 | ||
2577 | return errorEntry; | |
2578 | } | |
2579 | ||
2580 | /*@+enumint@*/ | |
2581 | if (c >= CTK_PLAIN && c < cttab.size) | |
2582 | { | |
2583 | return (cttab.entries[c]); | |
2584 | } | |
2585 | else if (c == CTK_UNKNOWN) | |
2586 | llcontbuglit ("ctype_getCtentry: ctype unknown"); | |
2587 | else if (c == CTK_INVALID) | |
2588 | llcontbuglit ("ctype_getCtentry: ctype invalid (ctype_undefined)"); | |
2589 | else if (c == CTK_DNE) | |
2590 | llcontbuglit ("ctype_getCtentry: ctype dne"); | |
2591 | else if (c == CTK_ELIPS) | |
2592 | llcontbuglit ("ctype_getCtentry: ctype elipsis"); | |
2593 | else if (c == CTK_MISSINGPARAMS) | |
2594 | llcontbuglit ("ctype_getCtentry: ctype missing params"); | |
2595 | else | |
2596 | llbug (message ("ctype_getCtentry: ctype out of range: %d", c)); | |
2597 | ||
2598 | return (cttab.entries[ctype_unknown]); | |
2599 | /*@=enumint@*/ | |
2600 | } | |
2601 | ||
616915dd | 2602 | /*drl 11/28/2000 */ |
2603 | /* requires that the type is an fixed array */ | |
2604 | /* return the size of the array */ | |
2605 | ||
2606 | long int ctype_getArraySize (ctype c) | |
2607 | { | |
28bf4b0b | 2608 | long int size; |
616915dd | 2609 | ctentry cte = ctype_getCtentry (c); |
2610 | ctbase ctb; | |
2611 | llassert ( (ctentry_getKind (cte) == CTK_COMPLEX) || (ctentry_getKind(cte) == CTK_ARRAY) ); | |
2612 | ||
2613 | ctb = cte->ctbase; | |
2614 | ||
28bf4b0b | 2615 | size = ctbase_getArraySize (ctb); |
616915dd | 2616 | |
28bf4b0b | 2617 | DPRINTF(( message("ctype_getArraySize: got fixed array size of %d ", (int)size) )); |
2618 | return size; | |
616915dd | 2619 | } |
28bf4b0b | 2620 |