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885824d3 | 1 | /* ;-*-C-*-; |
1b8ae690 | 2 | ** Splint - annotation-assisted static program checker |
c59f5181 | 3 | ** Copyright (C) 1994-2003 University of Virginia, |
1b8ae690 | 4 | ** Massachusetts Institute of Technology |
885824d3 | 5 | ** |
1b8ae690 | 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. | |
885824d3 | 19 | ** |
1b8ae690 | 20 | ** For information on splint: splint@cs.virginia.edu |
21 | ** To report a bug: splint-bug@cs.virginia.edu | |
22 | ** For more information: http://www.splint.org | |
885824d3 | 23 | */ |
24 | /* | |
25 | ** ctbase.i | |
26 | ** | |
27 | ** NOTE: This is not a stand-alone source file, but is included in ctype.c. | |
28bf4b0b | 28 | ** (This is necessary because there is no other way in C to have a |
885824d3 | 29 | ** hidden scope, besides at the file level.) |
30 | */ | |
31 | ||
32 | /*@access cprim*/ | |
33 | ||
28bf4b0b | 34 | abst_typedef /*@null@*/ struct s_ctbase *ctbase; |
885824d3 | 35 | |
e5081f8c | 36 | /*@function static bool ctuid_isAnyUserType (sef ctuid p_cid) @*/ |
b73d1009 | 37 | |
16c024b5 | 38 | /*@-macrofcndecl@*/ /*@-macroparams@*/ |
e5081f8c | 39 | # define ctuid_isAnyUserType(cid) \ |
40 | ((cid) == CT_ABST || (cid) == CT_USER || (cid) == CT_NUMABST) | |
16c024b5 | 41 | /*@=macrofcndecl@*/ /*@=macroparams@*/ |
e5081f8c | 42 | |
517a2db3 | 43 | /*:private:*/ typedef struct { |
885824d3 | 44 | ctkind kind; |
28bf4b0b | 45 | ctbase ctbase; |
885824d3 | 46 | ctype base; /* type I point to (or element of array) */ |
47 | ctype ptr; /* type of pointer to me */ | |
48 | ctype array; /* type of array of me */ | |
49 | cstring unparse; /* unparse me, if memoized */ | |
50 | } *ctentry ; | |
51 | ||
52 | typedef /*@only@*/ ctentry o_ctentry; | |
53 | ||
28bf4b0b | 54 | typedef struct { |
885824d3 | 55 | int size; |
56 | int nspace; | |
57 | /*@relnull@*/ /*@only@*/ o_ctentry *entries; | |
58 | /* memoize matches...maybe in context? */ | |
59 | } cttable ; | |
60 | ||
61 | extern bool ctentry_isBogus (/*@sef@*/ ctentry p_c) /*@*/; | |
62 | # define ctentry_isBogus(c) \ | |
63 | ((c)->kind == CTK_INVALID || (c)->kind == CTK_DNE) | |
64 | ||
65 | static cttable cttab = { 0, 0, NULL }; | |
66 | ||
67 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createAbstract (typeId p_u); | |
e5081f8c | 68 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createNumAbstract (typeId p_u); |
885824d3 | 69 | static /*@observer@*/ cstring ctentry_doUnparse (ctentry p_c) /*@modifies p_c@*/; |
70 | static /*@only@*/ ctentry | |
71 | ctentry_make (ctkind p_ctk, /*@keep@*/ ctbase p_c, ctype p_base, | |
72 | ctype p_ptr, ctype p_array, /*@keep@*/ cstring p_unparse); | |
73 | static /*@only@*/ ctentry ctentry_makeNew (ctkind p_ctk, /*@only@*/ ctbase p_c); | |
74 | static /*@only@*/ cstring ctentry_unparse (ctentry p_c) /*@*/ ; | |
75 | ||
76 | static void cttable_grow (void); | |
77 | static ctype cttable_addDerived (ctkind p_ctk, /*@keep@*/ ctbase p_cnew, ctype p_base); | |
78 | static ctype cttable_addFull (/*@keep@*/ ctentry p_cnew); | |
79 | static bool ctentry_isInteresting (ctentry p_c) /*@*/; | |
37ae0b5e | 80 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_makeFixedArray (ctype p_b, size_t p_size) /*@*/ ; |
d5047b91 | 81 | static bool ctbase_isAnytype (/*@notnull@*/ ctbase p_b) /*@*/ ; |
885824d3 | 82 | |
83 | /* | |
84 | ** These are file-static macros (used in ctype.c). No way to | |
85 | ** declare them as static in C. | |
86 | */ | |
87 | ||
88 | /*@-allmacros@*/ /*@-macrospec@*/ /*@-namechecks@*/ | |
89 | # define ctentry_getBase(c) ((c)->base) | |
90 | # define ctentry_getKind(c) ((c)->kind) | |
91 | # define ctentry_getArray(c) ((c)->array) | |
92 | # define ctentry_getPtr(c) ((c)->ptr) | |
93 | # define ctentry_isArray(c) ((c)->kind == CTK_ARRAY) | |
94 | # define ctentry_isComplex(c) ((c)->kind == CTK_COMPLEX) | |
95 | # define ctentry_isPlain(c) ((c)->kind == CTK_PLAIN) | |
96 | # define ctentry_isPointer(c) ((c)->kind == CTK_PTR) | |
97 | # define ctentry_setArray(c,b) ((c)->array = (b)) | |
98 | # define ctentry_setPtr(c,b) ((c)->ptr = (b)) | |
99 | ||
100 | # define ctbase_fixUser(c) (c = ctbase_realType(c)) | |
101 | /*@=allmacros@*/ /*@=macrospec@*/ /*@=namechecks@*/ | |
102 | ||
103 | static ctype cttable_addComplex (/*@notnull@*/ /*@only@*/ ctbase p_cnew); | |
104 | static /*@observer@*/ ctbase ctype_getCtbase (ctype p_c) /*@*/ ; | |
105 | static ctype ctype_makeConjAux (ctype p_c1, ctype p_c2, bool p_isExplicit) /*@*/ ; | |
106 | static /*@notnull@*/ /*@observer@*/ ctbase ctype_getCtbaseSafe (ctype p_c) /*@*/ ; | |
107 | static /*@observer@*/ ctentry ctype_getCtentry (ctype p_c) /*@*/ ; | |
108 | static /*@observer@*/ /*@notnull@*/ ctbase | |
109 | ctbase_realType (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
110 | static bool ctbase_isPointer (/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
111 | static bool ctbase_isEitherArray (/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
112 | static /*@observer@*/ enumNameList ctbase_elist (ctbase p_c) /*@*/ ; | |
113 | static /*@only@*/ cstring ctbase_unparse (ctbase p_c) /*@*/ ; | |
114 | static /*@only@*/ cstring ctbase_unparseDeep (ctbase p_c) /*@*/ ; | |
115 | static /*@only@*/ /*@notnull@*/ ctbase ctbase_copy (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
116 | static void ctbase_free (/*@only@*/ ctbase p_c); | |
117 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createPrim (cprim p_p) /*@*/ ; | |
118 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createBool (void) /*@*/ ; | |
119 | static /*@notnull@*/ /*@observer@*/ ctbase ctbase_getBool (void) /*@*/ ; | |
120 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createUser (typeId p_u) /*@*/ ; | |
121 | ||
122 | static /*@notnull@*/ /*@only@*/ ctbase | |
123 | ctbase_createStruct (/*@only@*/ cstring p_n, /*@only@*/ uentryList p_f); | |
124 | ||
125 | static /*@notnull@*/ /*@only@*/ ctbase | |
126 | ctbase_createUnion (/*@keep@*/ cstring p_n, /*@only@*/ uentryList p_f); | |
127 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createEnum (/*@keep@*/ cstring p_etag, /*@keep@*/ enumNameList p_emembers); | |
128 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createUnknown (void); | |
129 | static bool ctbase_match (ctbase p_c1, ctbase p_c2) /*@modifies nothing@*/; | |
130 | static bool ctbase_matchDef (ctbase p_c1, ctbase p_c2) /*@modifies nothing@*/; | |
a0a162cd | 131 | static bool ctbase_genMatch (ctbase p_c1, ctbase p_c2, bool p_force, bool p_arg, bool p_def, bool p_deep); |
885824d3 | 132 | static bool ctbase_isAbstract (/*@notnull@*/ ctbase p_c) /*@*/ ; |
133 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_makePointer (ctype p_b) /*@*/ ; | |
134 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_makeArray (ctype p_b) /*@*/ ; | |
135 | static /*@notnull@*/ ctype | |
136 | ctbase_makeFunction (ctype p_b, /*@only@*/ uentryList p_p) /*@*/ ; | |
885824d3 | 137 | static /*@notnull@*/ /*@observer@*/ ctbase |
138 | ctbase_realFunction (/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
139 | static ctype ctbase_baseArrayPtr (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
140 | static ctype ctbase_baseFunction (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
141 | static /*@observer@*/ uentryList ctbase_argsFunction (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
142 | static /*@observer@*/ uentryList ctbase_getuentryList (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
143 | static ctype ctbase_newBase (ctype p_c, ctype p_p) /*@*/ ; | |
144 | static ctype ctbase_newBaseExpFcn (ctype p_c, ctype p_p) /*@*/ ; | |
145 | static bool ctbase_isFixedArray (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
146 | ||
147 | /*@-macroundef@*/ | |
148 | extern int cttable_lastIndex(); | |
149 | # define cttable_lastIndex() (cttab.size - 1) | |
150 | /*@=macroundef@*/ | |
151 | ||
28bf4b0b | 152 | typedef struct |
885824d3 | 153 | { |
154 | ctype rval; | |
28bf4b0b | 155 | /*@only@*/ uentryList params; |
885824d3 | 156 | } *cfcn; |
157 | ||
28bf4b0b | 158 | typedef struct |
885824d3 | 159 | { |
160 | cstring name; | |
161 | uentryList fields; | |
162 | } *tsu; | |
163 | ||
28bf4b0b | 164 | typedef struct |
885824d3 | 165 | { |
166 | ctype a; | |
167 | ctype b; | |
168 | bool isExplicit; | |
169 | } *tconj; | |
170 | ||
28bf4b0b | 171 | typedef struct |
885824d3 | 172 | { |
173 | cstring tag; | |
174 | enumNameList members; | |
175 | } *tenum; | |
176 | ||
28bf4b0b | 177 | typedef struct |
885824d3 | 178 | { |
179 | ctype base; | |
37ae0b5e | 180 | size_t size; |
885824d3 | 181 | } *tfixed; |
182 | ||
28bf4b0b | 183 | typedef union |
885824d3 | 184 | { |
185 | cprim prim; /* primitive */ | |
186 | typeId tid; /* abstract, user */ | |
187 | ctype base; /* ptr, array */ | |
188 | cfcn fcn; /* function */ | |
189 | tsu su; /* struct union */ | |
190 | tenum cenum; /* enum */ | |
191 | tconj conj; /* conj */ | |
192 | tfixed farray; /* fixed array */ | |
193 | } uconts; | |
194 | ||
28bf4b0b | 195 | struct s_ctbase |
885824d3 | 196 | { |
197 | ctuid type; | |
198 | uconts contents; | |
199 | } ; | |
200 | ||
201 | static /*@falsenull@*/ bool ctbase_isUA (ctbase p_c) /*@*/ ; | |
202 | static bool ctbase_isBaseUA(ctbase p_c) /*@*/ ; | |
203 | static typeId ctbase_typeBaseUid(ctbase p_c) /*@*/ ; | |
204 | static bool ctbase_isKind (/*@notnull@*/ ctbase p_c, ctuid p_kind) /*@*/ ; | |
205 | static bool ctbase_isKind2 (/*@notnull@*/ ctbase p_c, ctuid p_kind1, ctuid p_kind2) /*@*/ ; | |
206 | static /*@only@*/ /*@notnull@*/ ctbase | |
207 | ctbase_getBaseType (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
208 | ||
209 | static /*@falsenull@*/ bool ctbase_isFunction(ctbase p_c) /*@*/ ; | |
210 | ||
211 | /*@constant null ctbase ctbase_undefined; @*/ | |
212 | # define ctbase_undefined ((ctbase)0) | |
213 | ||
214 | static /*@owned@*/ ctbase ctbase_bool = ctbase_undefined; | |
215 | static /*@owned@*/ ctbase ctbase_unknown = ctbase_undefined; | |
216 | ||
217 | static /*@falsenull@*/ bool ctbase_isDefined (ctbase c) /*@*/ | |
218 | { | |
219 | return ((c) != ctbase_undefined); | |
220 | } | |
221 | ||
222 | static /*@truenull@*/ bool ctbase_isUndefined (ctbase c) | |
223 | { | |
224 | return ((c) == ctbase_undefined); | |
225 | } | |
226 | ||
227 | static ctkind ctype_getCtKind (ctype c) | |
228 | { | |
229 | ctentry ce = ctype_getCtentry (c); | |
230 | ||
231 | return ctentry_getKind (ce); | |
232 | } | |
233 | ||
234 | static bool ctbase_isUser (ctbase c) | |
235 | { | |
236 | if (ctbase_isDefined (c)) | |
237 | { | |
238 | return (ctbase_isKind (c, CT_USER)); | |
239 | } | |
240 | else | |
241 | { | |
242 | return FALSE; | |
243 | } | |
244 | } | |
245 | ||
246 | static bool ctbase_isEnum (ctbase c) | |
247 | { | |
248 | if (ctbase_isDefined (c)) | |
249 | { | |
250 | return (ctbase_isKind (c, CT_ENUM)); | |
251 | } | |
252 | else | |
253 | { | |
254 | return FALSE; | |
255 | } | |
256 | } | |
257 | ||
258 | static bool ctbase_isExpFcn (ctbase c) | |
259 | { | |
260 | if (ctbase_isDefined (c)) | |
261 | { | |
262 | return (c->type == CT_EXPFCN); | |
263 | } | |
264 | else | |
265 | { | |
266 | return FALSE; | |
267 | } | |
268 | } | |
269 | ||
270 | static /*@falsenull@*/ bool ctbase_isConj (ctbase c) | |
271 | { | |
272 | if (ctbase_isDefined (c)) | |
273 | { | |
274 | return (c->type == CT_CONJ); | |
275 | } | |
276 | else | |
277 | { | |
278 | return FALSE; | |
279 | } | |
280 | } | |
281 | ||
282 | static bool ctuid_isAP (ctuid c) /*@*/ | |
283 | { | |
284 | return (c == CT_ARRAY || c == CT_PTR); | |
285 | } | |
286 | ||
287 | static typeId ctbase_typeId (ctbase p_c); | |
288 | static /*@only@*/ cstring ctbase_dump (ctbase p_c); | |
86d93ed3 | 289 | static /*@only@*/ ctbase ctbase_undump (char **p_c) /*@requires maxRead(*p_c) >= 2 @*/; |
885824d3 | 290 | static int ctbase_compare (ctbase p_c1, ctbase p_c2, bool p_strict); |
291 | static bool ctbase_matchArg (ctbase p_c1, ctbase p_c2); | |
292 | static /*@notnull@*/ /*@only@*/ ctbase | |
293 | ctbase_makeConj (ctype p_c1, ctype p_c2, bool p_isExplicit) /*@*/ ; | |
294 | static ctype ctbase_getConjA (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
295 | static ctype ctbase_getConjB (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
296 | static bool ctbase_isExplicitConj (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
a0a162cd | 297 | static bool ctbase_forceMatch (ctbase p_c1, ctbase p_c2) /*@modifies p_c1, p_c2@*/ ; |
885824d3 | 298 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_expectFunction (ctype p_c); |
299 | static bool ctbase_isVoidPointer(/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
28bf4b0b | 300 | static bool ctbase_isUnion (/*@notnull@*/ /*@temp@*/ ctbase p_c) /*@*/ ; |
301 | static bool ctbase_isStruct (/*@notnull@*/ /*@temp@*/ ctbase p_c) /*@*/ ; | |
885824d3 | 302 | static /*@observer@*/ cstring ctbase_enumTag (/*@notnull@*/ ctbase p_ct) /*@*/ ; |
303 | static /*@only@*/ cstring ctbase_unparseNotypes (ctbase p_c) /*@*/ ; | |
304 | ||
305 | static /*@out@*/ /*@notnull@*/ /*@only@*/ ctbase ctbase_new (void) /*@*/ ; | |
306 | static int nctbases = 0; | |
307 | ||
308 | static /*@notnull@*/ /*@only@*/ | |
28bf4b0b | 309 | ctbase ctbase_makeLiveFunction (ctype p_b, /*@only@*/ uentryList p_p); |
310 | ||
311 | static bool ctbase_isUnnamedSU (ctbase c) | |
312 | { | |
313 | return (ctbase_isDefined (c) | |
314 | && (ctbase_isStruct (c) || ctbase_isUnion (c)) | |
315 | && isFakeTag (c->contents.su->name)); | |
316 | } | |
885824d3 | 317 | |
318 | static /*@observer@*/ ctbase ctbase_realType (ctbase c) | |
319 | { | |
320 | if (ctbase_isUA (c)) | |
321 | { | |
322 | typeId uid = ctbase_typeId (c); | |
323 | ||
324 | if (usymtab_isBoolType (uid)) | |
325 | { | |
326 | return ctbase_getBool (); | |
327 | } | |
328 | else | |
329 | { | |
330 | ctbase ret = ctype_getCtbase | |
331 | (uentry_getRealType (usymtab_getTypeEntry (ctbase_typeId (c)))); | |
332 | ||
333 | llassert (ret != ctbase_undefined); | |
334 | return ret; | |
335 | } | |
336 | } | |
337 | else | |
338 | { | |
339 | return c; | |
340 | } | |
341 | } | |
342 | ||
343 | static bool | |
344 | ctbase_isVoidPointer (/*@dependent@*/ /*@notnull@*/ ctbase c) | |
345 | { | |
346 | ctbase r = ctbase_realType (c); | |
347 | ||
348 | return (ctbase_isKind (r, CT_PTR) && | |
349 | ctype_isVoid (r->contents.base)); | |
350 | } | |
351 | ||
352 | static bool | |
353 | ctbase_isPointer (/*@notnull@*/ /*@dependent@*/ ctbase c) | |
354 | { | |
355 | ctbase r = ctbase_realType (c); | |
356 | ||
357 | return (ctbase_isKind (r, CT_PTR)); | |
358 | } | |
359 | ||
360 | static bool | |
361 | ctbase_isEitherArray (/*@notnull@*/ ctbase c) | |
362 | { | |
363 | ctbase r = ctbase_realType (c); | |
364 | ||
365 | return (ctbase_isKind (r, CT_ARRAY) | |
366 | || ctbase_isKind (r, CT_FIXEDARRAY)); | |
367 | } | |
368 | ||
369 | static bool | |
370 | ctbase_isFixedArray (/*@notnull@*/ ctbase c) | |
371 | { | |
372 | ctbase r = ctbase_realType (c); | |
373 | ||
374 | return (ctbase_isKind (r, CT_FIXEDARRAY)); | |
375 | } | |
376 | ||
377 | static bool | |
378 | ctbase_isStruct (/*@notnull@*/ ctbase c) | |
379 | { | |
380 | ctbase r = ctbase_realType (c); | |
381 | ||
382 | return (ctbase_isKind (r, CT_STRUCT)); | |
383 | } | |
384 | ||
385 | static bool | |
28bf4b0b | 386 | ctbase_isUnion (/*@notnull@*/ ctbase c) |
885824d3 | 387 | { |
388 | ctbase r = ctbase_realType (c); | |
389 | ||
390 | return (ctbase_isKind (r, CT_UNION)); | |
391 | } | |
392 | ||
393 | /* | |
394 | ** clean this up -> typeTable should store ctype | |
395 | */ | |
396 | ||
397 | static typeId | |
398 | ctbase_typeBaseUid (ctbase c) | |
399 | { | |
400 | ctuid ct; | |
401 | ||
402 | if (ctbase_isDefined (c)) | |
403 | { | |
404 | ct = c->type; | |
405 | ||
406 | if (ctuid_isAP (ct)) | |
407 | { | |
408 | return ctbase_typeBaseUid (ctype_getCtbase (c->contents.base)); | |
409 | } | |
e5081f8c | 410 | else if (ct == CT_USER || ct == CT_ABST || ct == CT_NUMABST) |
885824d3 | 411 | { |
412 | return c->contents.tid; | |
413 | } | |
414 | else if (ct == CT_FIXEDARRAY) | |
415 | { | |
416 | return ctbase_typeBaseUid (ctype_getCtbase (c->contents.farray->base)); | |
417 | } | |
418 | else | |
419 | { | |
420 | llcontbuglit ("ctbase_typeBaseUid: bad call"); | |
421 | return typeId_invalid; | |
422 | } | |
423 | } | |
424 | return typeId_invalid; | |
425 | } | |
426 | ||
427 | static bool | |
428 | ctbase_isBaseUA (ctbase c) | |
429 | { | |
430 | ctuid ct; | |
431 | ||
432 | if (ctbase_isDefined (c)) | |
433 | { | |
434 | ct = c->type; | |
435 | ||
436 | if (ctuid_isAP (ct)) | |
437 | { | |
438 | return ctbase_isBaseUA (ctype_getCtbase (c->contents.base)); | |
439 | } | |
440 | else if (ct == CT_FIXEDARRAY) | |
441 | { | |
442 | return ctbase_isBaseUA (ctype_getCtbase (c->contents.farray->base)); | |
443 | } | |
444 | else | |
e5081f8c | 445 | return (ct == CT_USER || ct == CT_ABST || ct == CT_NUMABST); |
885824d3 | 446 | } |
447 | return FALSE; | |
448 | } | |
449 | ||
450 | static typeId | |
451 | ctbase_typeId (ctbase c) | |
452 | { | |
453 | if (ctbase_isUA (c)) | |
454 | { | |
455 | return c->contents.tid; | |
456 | } | |
457 | else | |
458 | { | |
28bf4b0b | 459 | if (ctbase_isConj (c)) |
460 | { | |
461 | return ctbase_typeId (ctype_getCtbase (ctbase_getConjA (c))); | |
462 | } | |
463 | else | |
464 | { | |
465 | llcontbug (message ("ctbase_typeId: bad call: %q", ctbase_unparse (c))); | |
466 | return typeId_invalid; | |
467 | } | |
885824d3 | 468 | } |
469 | } | |
470 | ||
471 | static /*@only@*/ cstring | |
472 | ctbase_unparse (ctbase c) | |
473 | { | |
474 | if (ctbase_isUndefined (c)) { | |
475 | return cstring_makeLiteral ("<<undef>>"); | |
476 | } | |
477 | ||
478 | switch (c->type) | |
479 | { | |
480 | case CT_UNKNOWN: | |
481 | return cstring_makeLiteral ("?"); | |
482 | case CT_BOOL: | |
483 | return cstring_copy (context_printBoolName ()); | |
484 | case CT_PRIM: | |
485 | return (cprim_unparse (c->contents.prim)); | |
486 | case CT_USER: | |
885824d3 | 487 | case CT_ABST: |
e5081f8c | 488 | case CT_NUMABST: |
885824d3 | 489 | return (usymtab_getTypeEntryName (c->contents.tid)); |
490 | case CT_EXPFCN: | |
491 | return (message ("<expf: %t>", c->contents.base)); | |
492 | case CT_PTR: | |
493 | /* no spaces for multiple pointers */ | |
494 | ||
495 | if (ctype_isPointer (c->contents.base)) | |
496 | { | |
497 | return (cstring_appendChar (cstring_copy (ctype_unparse (c->contents.base)), '*')); | |
498 | } | |
499 | else | |
500 | { | |
501 | return (message ("%t *", c->contents.base)); | |
502 | } | |
503 | case CT_FIXEDARRAY: | |
f9e62f40 | 504 | /* |
505 | ** C prints out array declarations backwards, if | |
506 | ** base is an array need to print out in reverse order. | |
507 | */ | |
508 | ||
509 | if (ctype_isArray (c->contents.farray->base)) | |
510 | { | |
511 | ctype base = c->contents.farray->base; | |
512 | cstring res = message ("[%d]", (int) c->contents.farray->size); | |
513 | ||
514 | while (ctype_isArray (base)) | |
515 | { | |
516 | if (ctype_isFixedArray (base)) | |
517 | { | |
518 | res = message ("%q[%d]", | |
519 | res, (int) ctype_getArraySize (base)); | |
520 | } | |
521 | else | |
522 | { | |
523 | res = message ("%q[]", res); | |
524 | } | |
525 | ||
526 | base = ctype_baseArrayPtr (base); | |
527 | } | |
528 | ||
529 | return (message ("%t %q", base, res)); | |
530 | } | |
531 | else | |
532 | { | |
533 | return (message ("%t [%d]", | |
534 | c->contents.farray->base, | |
535 | (int) c->contents.farray->size)); | |
536 | } | |
885824d3 | 537 | case CT_ARRAY: |
f9e62f40 | 538 | if (ctype_isArray (c->contents.base)) |
539 | { | |
540 | ctype base = c->contents.base; | |
541 | cstring res = cstring_makeLiteral ("[]"); | |
542 | ||
543 | while (ctype_isArray (base)) | |
544 | { | |
545 | if (ctype_isFixedArray (base)) | |
546 | { | |
547 | res = message ("%q[%d]", | |
548 | res, (int) ctype_getArraySize (base)); | |
549 | } | |
550 | else | |
551 | { | |
552 | res = message ("%q[]", res); | |
553 | } | |
554 | ||
555 | base = ctype_baseArrayPtr (base); | |
556 | } | |
557 | ||
558 | return (message ("%t %q", base, res)); | |
559 | ||
560 | } | |
561 | else | |
562 | { | |
563 | return (message ("%t []", c->contents.base)); | |
564 | } | |
885824d3 | 565 | case CT_FCN: |
566 | return (message ("[function (%q) returns %t]", | |
567 | uentryList_unparseParams (c->contents.fcn->params), | |
568 | c->contents.fcn->rval)); | |
569 | case CT_STRUCT: | |
570 | if (cstring_isDefined (c->contents.su->name) && | |
571 | !cstring_isEmpty (c->contents.su->name) && | |
572 | !isFakeTag (c->contents.su->name)) | |
573 | { | |
574 | return (message ("struct %s", c->contents.su->name)); | |
575 | } | |
576 | else | |
577 | { | |
28bf4b0b | 578 | return (message ("struct { %q }", |
579 | uentryList_unparseAbbrev (c->contents.su->fields))); | |
885824d3 | 580 | } |
581 | case CT_UNION: | |
582 | if (cstring_isDefined (c->contents.su->name) && | |
583 | !cstring_isEmpty (c->contents.su->name) && | |
584 | !isFakeTag (c->contents.su->name)) | |
585 | { | |
586 | return (message ("union %s", c->contents.su->name)); | |
587 | } | |
588 | else | |
589 | { | |
590 | return (message ("union { %q }", | |
591 | uentryList_unparseAbbrev (c->contents.su->fields))); | |
592 | } | |
593 | case CT_ENUM: | |
594 | if (isFakeTag (c->contents.cenum->tag)) | |
595 | { | |
596 | return (message ("enum { %q }", | |
597 | enumNameList_unparseBrief (c->contents.cenum->members))); | |
598 | } | |
599 | else | |
600 | { | |
601 | return (message ("enum %s { %q }", | |
602 | c->contents.cenum->tag, | |
603 | enumNameList_unparseBrief (c->contents.cenum->members))); | |
604 | } | |
605 | case CT_CONJ: | |
d5047b91 | 606 | if (ctbase_isAnytype (c)) |
607 | { | |
608 | return (cstring_makeLiteral ("<any>")); | |
609 | } | |
610 | else if (c->contents.conj->isExplicit || context_getFlag (FLG_SHOWALLCONJS)) | |
885824d3 | 611 | { |
612 | if (!ctype_isSimple (c->contents.conj->a) || | |
613 | !ctype_isSimple (c->contents.conj->b)) | |
614 | { | |
615 | return (message ("<%t> | <%t>", c->contents.conj->a, c->contents.conj->b)); | |
616 | } | |
617 | else | |
618 | { | |
619 | return (message ("%t | %t", c->contents.conj->a, c->contents.conj->b)); | |
620 | } | |
621 | } | |
622 | else | |
623 | { | |
624 | return (cstring_copy (ctype_unparse (c->contents.conj->a))); | |
625 | } | |
626 | BADDEFAULT; | |
627 | } | |
628 | BADEXIT; | |
629 | } | |
630 | ||
631 | static /*@only@*/ cstring | |
632 | ctbase_unparseDeep (ctbase c) | |
633 | { | |
634 | if (ctbase_isUndefined (c)) | |
635 | { | |
636 | return cstring_makeLiteral ("<<undef>>"); | |
637 | } | |
638 | ||
639 | switch (c->type) | |
640 | { | |
641 | case CT_UNKNOWN: | |
642 | return cstring_makeLiteral ("?"); | |
643 | case CT_BOOL: | |
644 | return cstring_copy (context_printBoolName ()); | |
645 | case CT_PRIM: | |
646 | return (cprim_unparse (c->contents.prim)); | |
647 | case CT_ENUM: | |
648 | if (cstring_isNonEmpty (c->contents.cenum->tag)) | |
649 | { | |
650 | return (message ("enum %s { %q }", | |
651 | c->contents.cenum->tag, | |
652 | enumNameList_unparse (c->contents.cenum->members))); | |
653 | } | |
654 | else | |
655 | { | |
656 | return (message ("enum { %q }", | |
657 | enumNameList_unparse (c->contents.cenum->members))); | |
658 | } | |
659 | case CT_USER: | |
885824d3 | 660 | case CT_ABST: |
e5081f8c | 661 | case CT_NUMABST: |
885824d3 | 662 | return (usymtab_getTypeEntryName (c->contents.tid)); |
663 | case CT_EXPFCN: | |
664 | return (message ("<expf: %t>", c->contents.base)); | |
665 | case CT_PTR: | |
666 | return (message ("%t *", c->contents.base)); | |
667 | case CT_FIXEDARRAY: | |
668 | return (message ("%t [%d]", c->contents.farray->base, | |
669 | (int) c->contents.farray->size)); | |
670 | case CT_ARRAY: | |
671 | return (message ("%t []", c->contents.base)); | |
672 | case CT_FCN: | |
673 | return (message ("[function (%q) returns %t]", | |
674 | uentryList_unparse (c->contents.fcn->params), | |
675 | c->contents.fcn->rval)); | |
676 | case CT_STRUCT: | |
677 | return (message ("struct %s { ... } ", c->contents.su->name)); | |
678 | case CT_UNION: | |
679 | return (message ("union %s { ... }", c->contents.su->name)); | |
680 | case CT_CONJ: | |
d5047b91 | 681 | if (ctbase_isAnytype (c)) |
682 | { | |
683 | return (cstring_makeLiteral ("<any>")); | |
684 | } | |
685 | else | |
686 | { | |
687 | return (message ("%t", c->contents.conj->a)); | |
688 | } | |
885824d3 | 689 | BADDEFAULT; |
690 | } | |
691 | BADEXIT; | |
692 | } | |
693 | ||
694 | static /*@only@*/ cstring | |
695 | ctbase_unparseNotypes (ctbase c) | |
696 | { | |
697 | llassert (ctbase_isDefined (c)); | |
698 | ||
699 | switch (c->type) | |
700 | { | |
701 | case CT_UNKNOWN: | |
702 | return cstring_makeLiteral ("?"); | |
703 | case CT_BOOL: | |
704 | return cstring_copy (context_printBoolName ()); | |
705 | case CT_PRIM: | |
706 | return (cprim_unparse (c->contents.prim)); | |
707 | case CT_ENUM: | |
708 | if (typeId_isInvalid (c->contents.tid)) | |
709 | { | |
710 | return cstring_makeLiteral ("enum"); | |
711 | } | |
712 | else | |
713 | { | |
714 | return (message ("T#%d", c->contents.tid)); | |
715 | } | |
716 | case CT_USER: | |
717 | return (message ("uT#%d", c->contents.tid)); | |
718 | case CT_ABST: | |
719 | return (message ("aT#%d", c->contents.tid)); | |
e5081f8c | 720 | case CT_NUMABST: |
721 | return (message ("nT#%d", c->contents.tid)); | |
885824d3 | 722 | case CT_EXPFCN: |
723 | return (message ("<expf: %q >", ctbase_unparseNotypes (ctype_getCtbase (c->contents.base)))); | |
724 | case CT_PTR: | |
725 | return (message ("%q *", ctbase_unparseNotypes (ctype_getCtbase (c->contents.base)))); | |
726 | case CT_ARRAY: | |
727 | return (message ("%q []", ctbase_unparseNotypes (ctype_getCtbase (c->contents.base)))); | |
728 | case CT_FCN: | |
729 | return (message ("[function (%d) returns %q]", uentryList_size (c->contents.fcn->params), | |
730 | ctbase_unparseNotypes (ctype_getCtbase (c->contents.fcn->rval)))); | |
731 | case CT_STRUCT: | |
732 | return (message ("struct %s", c->contents.su->name)); | |
733 | case CT_UNION: | |
734 | return (message ("union %s", c->contents.su->name)); | |
735 | case CT_ENUMLIST: | |
736 | return (message ("[enumlist]")); | |
737 | case CT_CONJ: | |
d5047b91 | 738 | if (ctbase_isAnytype (c)) |
739 | { | |
740 | return (cstring_makeLiteral ("<any>")); | |
741 | } | |
742 | else | |
743 | { | |
744 | return (message ("%q/%q", | |
745 | ctbase_unparseNotypes (ctype_getCtbase (c->contents.conj->a)), | |
746 | ctbase_unparseNotypes (ctype_getCtbase (c->contents.conj->b)))); | |
747 | } | |
885824d3 | 748 | BADDEFAULT; |
749 | } | |
750 | BADEXIT; | |
751 | } | |
752 | ||
753 | static /*@only@*/ cstring | |
754 | ctbase_unparseDeclaration (ctbase c, /*@only@*/ cstring name) /*@*/ | |
755 | { | |
756 | if (ctbase_isUndefined (c)) | |
757 | { | |
758 | return name; | |
759 | } | |
760 | ||
761 | switch (c->type) | |
762 | { | |
763 | case CT_UNKNOWN: | |
764 | return (message ("? %q", name)); | |
765 | case CT_BOOL: | |
766 | return (message ("%s %q", context_printBoolName (), name)); | |
767 | case CT_PRIM: | |
768 | return (message ("%q %q", cprim_unparse (c->contents.prim), name)); | |
769 | case CT_USER: | |
770 | case CT_ABST: | |
e5081f8c | 771 | case CT_NUMABST: |
885824d3 | 772 | return (message ("%q %q", usymtab_getTypeEntryName (c->contents.tid), name)); |
773 | case CT_EXPFCN: | |
774 | llcontbuglit ("ctbase_unparseDeclaration: expfcn"); | |
775 | return name; | |
776 | case CT_PTR: | |
777 | if (ctype_isFunction (c->contents.base)) | |
778 | { | |
779 | return ctbase_unparseDeclaration (ctype_getCtbase (c->contents.base), name); | |
780 | } | |
781 | else | |
782 | { | |
783 | cstring s = cstring_prependChar ('*', name); | |
784 | cstring ret = ctbase_unparseDeclaration (ctype_getCtbase (c->contents.base), s); | |
785 | cstring_free (name); | |
786 | return (ret); | |
787 | } | |
788 | case CT_FIXEDARRAY: | |
789 | return (message ("%q[%d]", | |
790 | ctbase_unparseDeclaration (ctype_getCtbase (c->contents.farray->base), name), | |
791 | (int) c->contents.farray->size)); | |
792 | case CT_ARRAY: | |
793 | return (message ("%q[]", | |
794 | ctbase_unparseDeclaration (ctype_getCtbase (c->contents.base), name))); | |
795 | case CT_FCN: | |
796 | { | |
797 | cstring s = message ("%q(%q)", name, | |
798 | uentryList_unparseParams (c->contents.fcn->params)); | |
799 | ||
800 | return (ctbase_unparseDeclaration | |
801 | (ctype_getCtbase (c->contents.fcn->rval), s)); | |
802 | } | |
803 | case CT_STRUCT: | |
804 | if (cstring_isDefined (c->contents.su->name) && | |
805 | !cstring_isEmpty (c->contents.su->name) && | |
806 | !isFakeTag (c->contents.su->name)) | |
807 | { | |
808 | return (message ("struct %s %q", c->contents.su->name, name)); | |
809 | } | |
810 | else | |
811 | { | |
812 | return (message ("struct { %q } %q", | |
813 | uentryList_unparseAbbrev (c->contents.su->fields), | |
814 | name)); | |
815 | } | |
816 | case CT_UNION: | |
817 | if (cstring_isDefined (c->contents.su->name) && | |
818 | !cstring_isEmpty (c->contents.su->name) && | |
819 | !isFakeTag (c->contents.su->name)) | |
820 | { | |
821 | return (message ("union %s %q", c->contents.su->name, name)); | |
822 | } | |
823 | else | |
824 | { | |
825 | return (message ("union { %q } %q", | |
826 | uentryList_unparseAbbrev (c->contents.su->fields), | |
827 | name)); | |
828 | } | |
829 | case CT_ENUM: | |
830 | if (isFakeTag (c->contents.cenum->tag)) | |
831 | { | |
832 | return (message ("enum { %q } %q", | |
833 | enumNameList_unparseBrief (c->contents.cenum->members), | |
834 | name)); | |
835 | } | |
836 | else | |
837 | { | |
838 | return (message ("enum %s { %q } %q", | |
839 | c->contents.cenum->tag, | |
840 | enumNameList_unparseBrief (c->contents.cenum->members), | |
841 | name)); | |
842 | } | |
d5047b91 | 843 | case CT_CONJ: |
844 | if (ctbase_isAnytype (c)) | |
845 | { | |
846 | return (message ("<any> %q", name)); | |
847 | } | |
848 | else if (c->contents.conj->isExplicit || context_getFlag (FLG_SHOWALLCONJS)) | |
885824d3 | 849 | { |
850 | if (!ctype_isSimple (c->contents.conj->a) || | |
851 | !ctype_isSimple (c->contents.conj->b)) | |
852 | { | |
853 | cstring name1 = cstring_copy (name); | |
854 | ||
855 | return | |
856 | (message | |
857 | ("<%q> | <%q>", | |
858 | ctbase_unparseDeclaration | |
859 | (ctype_getCtbase (c->contents.conj->a), name1), | |
860 | ctbase_unparseDeclaration | |
861 | (ctype_getCtbase (c->contents.conj->b), name))); | |
862 | } | |
863 | else | |
864 | { | |
865 | cstring s1 = ctbase_unparseDeclaration (ctype_getCtbase (c->contents.conj->a), | |
866 | cstring_copy (name)); | |
867 | return | |
868 | (message ("%q | %q", s1, | |
869 | ctbase_unparseDeclaration (ctype_getCtbase (c->contents.conj->b), | |
870 | name))); | |
871 | } | |
872 | } | |
873 | else | |
874 | { | |
875 | cstring_free (name); | |
876 | return (cstring_copy (ctype_unparse (c->contents.conj->a))); | |
877 | } | |
878 | BADDEFAULT; | |
879 | } | |
880 | BADEXIT; | |
881 | } | |
882 | ||
86d93ed3 | 883 | static ctbase ctbase_undump (d_char *c) /*@requires maxRead(*c) >= 2 @*/ |
885824d3 | 884 | { |
885 | ctbase res; | |
886 | char p = **c; | |
887 | ||
888 | (*c)++; | |
889 | ||
890 | switch (p) | |
891 | { | |
892 | case '?': | |
893 | return (ctbase_undefined); | |
894 | case 'u': | |
895 | return (ctbase_createUnknown ()); | |
896 | case 'b': | |
897 | return (ctbase_createBool ()); | |
898 | case 'p': | |
28bf4b0b | 899 | res = ctbase_createPrim (cprim_fromInt (reader_getInt (c))); |
900 | reader_checkChar (c, '|'); | |
885824d3 | 901 | return res; |
902 | case 's': | |
28bf4b0b | 903 | res = ctbase_createUser (typeId_fromInt (reader_getInt (c))); |
904 | reader_checkChar (c, '|'); | |
885824d3 | 905 | return res; |
906 | case 'a': | |
28bf4b0b | 907 | res = ctbase_createAbstract (typeId_fromInt (reader_getInt (c))); |
908 | reader_checkChar (c, '|'); | |
885824d3 | 909 | return res; |
e5081f8c | 910 | case 'n': |
911 | res = ctbase_createNumAbstract (typeId_fromInt (reader_getInt (c))); | |
912 | reader_checkChar (c, '|'); | |
913 | return res; | |
885824d3 | 914 | case 't': |
915 | res = ctbase_makePointer (ctype_undump (c)); | |
28bf4b0b | 916 | reader_checkChar (c, '|'); |
885824d3 | 917 | return res; |
918 | case 'y': | |
919 | res = ctbase_makeArray (ctype_undump (c)); | |
28bf4b0b | 920 | reader_checkChar (c, '|'); |
885824d3 | 921 | return res; |
922 | case 'F': | |
923 | { | |
924 | ctype ct = ctype_undump (c); | |
37ae0b5e | 925 | size_t size; |
885824d3 | 926 | |
28bf4b0b | 927 | reader_checkChar (c, '/'); |
37ae0b5e | 928 | size = size_fromInt (reader_getInt (c)); |
28bf4b0b | 929 | reader_checkChar (c, '|'); |
885824d3 | 930 | return (ctbase_makeFixedArray (ct, size)); |
931 | } | |
932 | case 'f': | |
933 | { | |
934 | ctype ct; | |
935 | char *lp = strchr (*c, '('); | |
936 | ||
937 | llassertfatal (lp != NULL); | |
938 | ||
939 | *lp = '\0'; | |
940 | ct = ctype_undump (c); | |
941 | *c = lp + 1; | |
942 | ||
943 | return (ctbase_makeLiveFunction (ct, uentryList_undump (c))); | |
944 | } | |
945 | case 'S': | |
946 | { | |
947 | uentryList fields; | |
948 | ctbase ctb; | |
949 | char *sname; | |
950 | char *lc = strchr (*c, '{'); | |
951 | ||
952 | llassert (lc != NULL); | |
953 | *lc = '\0'; | |
954 | ||
955 | sname = mstring_copy (*c); | |
956 | ||
957 | *c = lc + 1; | |
958 | ||
959 | if (*sname == '!') | |
960 | { | |
961 | unsigned int i; | |
962 | ||
963 | i = (unsigned) atoi (sname + 1); | |
964 | ||
965 | setTagNo (i); | |
966 | } | |
967 | ||
968 | fields = uentryList_undumpFields (c, g_currentloc); | |
969 | ||
970 | ctb = ctbase_createStruct (cstring_fromCharsO (sname), fields); | |
971 | return ctb; | |
972 | } | |
973 | case 'U': | |
974 | { | |
975 | char *sname; | |
976 | char *lc = strchr (*c, '{'); | |
977 | ||
978 | llassert (lc != NULL); | |
979 | ||
980 | *lc = '\0'; | |
981 | sname = mstring_copy (*c); | |
982 | llassert (sname != NULL); | |
983 | ||
984 | *c = lc + 1; | |
985 | ||
986 | if (*sname == '!') | |
987 | { | |
988 | unsigned int i; | |
989 | ||
990 | i = (unsigned) atoi (sname + 1); | |
991 | setTagNo (i); | |
992 | } | |
993 | ||
994 | return (ctbase_createUnion (cstring_fromCharsO (sname), | |
995 | uentryList_undumpFields (c, g_currentloc))); | |
996 | } | |
997 | case 'e': | |
998 | { | |
999 | ctbase ret; | |
1000 | char *sname; | |
1001 | char *lc = strchr (*c, '{'); | |
1002 | ||
1003 | llassert (lc != NULL); | |
1004 | ||
1005 | *lc = '\0'; | |
1006 | sname = mstring_copy (*c); | |
1007 | *c = lc + 1; | |
1008 | ||
1009 | if (*sname == '!') | |
1010 | { | |
1011 | unsigned int i; | |
1012 | ||
1013 | i = (unsigned) atoi (sname + 1); | |
1014 | setTagNo (i); | |
1015 | } | |
1016 | ||
1017 | ret = ctbase_createEnum (cstring_fromCharsO (sname), | |
1018 | enumNameList_undump (c)); | |
1019 | return ret; | |
1020 | } | |
1021 | case 'C': | |
1022 | { | |
1023 | bool isExplicit; | |
1024 | ctype c1, c2; | |
1025 | ||
28bf4b0b | 1026 | isExplicit = bool_fromInt (reader_getInt (c)); |
1027 | reader_checkChar (c, '.'); | |
885824d3 | 1028 | c1 = ctype_undump (c); |
28bf4b0b | 1029 | reader_checkChar (c, '/'); |
885824d3 | 1030 | c2 = ctype_undump (c); |
28bf4b0b | 1031 | reader_checkChar (c, '|'); |
885824d3 | 1032 | |
1033 | return (ctbase_makeConj (c1, c2, isExplicit)); | |
1034 | } | |
1035 | ||
1036 | default: | |
1037 | (*c)--; | |
1038 | llerror (FLG_SYNTAX, | |
1039 | message ("Bad Library line (type): %s", cstring_fromChars (*c))); | |
1040 | ||
86d93ed3 | 1041 | /*drl bee: pbr*/ while (**c != '\0') |
885824d3 | 1042 | { |
1043 | (*c)++; | |
1044 | } | |
1045 | ||
1046 | return ctbase_createUnknown (); | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | /* first letter of c encodes type: */ | |
1051 | /* u unknown */ | |
1052 | /* b bool */ | |
1053 | /* p prim */ | |
1054 | /* e enum */ | |
1055 | /* l enumList */ | |
1056 | /* s uSer */ | |
1057 | /* a abstract */ | |
1058 | /* t poinTer */ | |
1059 | /* y arraY */ | |
1060 | /* F Fixed array */ | |
1061 | /* f function */ | |
1062 | /* S structure */ | |
1063 | /* U union */ | |
1064 | /* C conj */ | |
1065 | ||
1066 | static /*@only@*/ cstring | |
1067 | ctbase_dump (ctbase c) | |
1068 | { | |
1069 | if (!ctbase_isDefined (c)) | |
1070 | { | |
1071 | return cstring_makeLiteral ("?"); | |
1072 | } | |
1073 | ||
1074 | switch (c->type) | |
1075 | { | |
1076 | case CT_UNKNOWN: | |
1077 | return cstring_makeLiteral ("u"); | |
1078 | case CT_BOOL: | |
1079 | return cstring_makeLiteral ("b"); | |
1080 | case CT_PRIM: | |
1081 | return (message ("p%d|", c->contents.prim)); | |
1082 | case CT_USER: | |
b73d1009 | 1083 | return (message ("s%d|", usymtab_convertTypeId (c->contents.tid))); |
885824d3 | 1084 | case CT_ABST: |
b73d1009 | 1085 | return (message ("a%d|", usymtab_convertTypeId (c->contents.tid))); |
e5081f8c | 1086 | case CT_NUMABST: |
b73d1009 | 1087 | return (message ("n%d|", usymtab_convertTypeId (c->contents.tid))); |
885824d3 | 1088 | case CT_PTR: |
1089 | return (message ("t%q|", ctype_dump (c->contents.base))); | |
1090 | case CT_ARRAY: | |
1091 | return (message ("y%q|", ctype_dump (c->contents.base))); | |
1092 | case CT_FIXEDARRAY: | |
1093 | return (message ("F%q/%d|", | |
1094 | ctype_dump (c->contents.farray->base), | |
1095 | (int) c->contents.farray->size)); | |
1096 | case CT_FCN: | |
28bf4b0b | 1097 | DPRINTF (("Dump function: %s", ctbase_unparse (c))); |
885824d3 | 1098 | return (message ("f%q (%q)", ctype_dump (c->contents.fcn->rval), |
1099 | uentryList_dumpParams (c->contents.fcn->params))); | |
1100 | case CT_STRUCT: | |
1101 | return (message ("S%s{%q}", c->contents.su->name, | |
1102 | uentryList_dumpFields (c->contents.su->fields))); | |
1103 | case CT_UNION: | |
1104 | return (message ("U%s{%q}", c->contents.su->name, | |
1105 | uentryList_dumpFields (c->contents.su->fields))); | |
1106 | case CT_ENUM: | |
1107 | { | |
1108 | cstring s; | |
1109 | ||
1110 | if (cstring_isNonEmpty (c->contents.cenum->tag)) | |
1111 | { | |
1112 | s = message ("e%s{%q}", | |
1113 | c->contents.cenum->tag, | |
1114 | enumNameList_dump (c->contents.cenum->members)); | |
1115 | } | |
1116 | else | |
1117 | { | |
1118 | s = message ("e{%q}", | |
1119 | enumNameList_dump (c->contents.cenum->members)); | |
1120 | } | |
1121 | return (s); | |
1122 | } | |
1123 | case CT_CONJ: | |
1124 | return (message ("C%d.%q/%q|", | |
1125 | bool_toInt (c->contents.conj->isExplicit), | |
1126 | ctype_dump (c->contents.conj->a), | |
1127 | ctype_dump (c->contents.conj->b))); | |
1128 | case CT_EXPFCN: | |
1129 | /* should clean them up! */ | |
1130 | return (cstring_makeLiteral ("?")); | |
1131 | case CT_ENUMLIST: | |
1132 | llcontbug (message ("Cannot dump: %q", ctbase_unparse (c))); | |
1133 | return (message ("u")); | |
1134 | BADDEFAULT; | |
1135 | } | |
1136 | ||
1137 | BADEXIT; | |
1138 | } | |
1139 | ||
1140 | static /*@only@*/ ctbase | |
1141 | ctbase_copy (/*@notnull@*/ ctbase c) | |
1142 | { | |
1143 | switch (c->type) | |
1144 | { | |
1145 | case CT_UNKNOWN: | |
1146 | return (ctbase_createUnknown ()); | |
1147 | case CT_BOOL: | |
1148 | return (ctbase_createBool ()); | |
1149 | case CT_ENUM: | |
1150 | return (ctbase_createEnum (cstring_copy (c->contents.cenum->tag), | |
1151 | enumNameList_copy (c->contents.cenum->members))); | |
1152 | case CT_PRIM: | |
1153 | return (ctbase_createPrim (c->contents.prim)); | |
1154 | case CT_USER: | |
1155 | return (ctbase_createUser (c->contents.tid)); | |
1156 | case CT_ABST: | |
1157 | return (ctbase_createAbstract (c->contents.tid)); | |
e5081f8c | 1158 | case CT_NUMABST: |
1159 | return (ctbase_createNumAbstract (c->contents.tid)); | |
885824d3 | 1160 | case CT_EXPFCN: |
1161 | return (ctbase_expectFunction (c->contents.base)); | |
1162 | case CT_PTR: | |
1163 | return (ctbase_makePointer (c->contents.base)); | |
1164 | case CT_ARRAY: | |
1165 | return (ctbase_makeArray (c->contents.base)); | |
1166 | case CT_FCN: | |
1167 | return (ctbase_makeLiveFunction (c->contents.fcn->rval, | |
1168 | uentryList_copy (c->contents.fcn->params))); | |
1169 | case CT_STRUCT: | |
1170 | return (ctbase_createStruct (cstring_copy (c->contents.su->name), | |
1171 | uentryList_copy (c->contents.su->fields))); | |
1172 | case CT_UNION: | |
1173 | return (ctbase_createUnion (cstring_copy (c->contents.su->name), | |
1174 | uentryList_copy (c->contents.su->fields))); | |
1175 | case CT_CONJ: | |
1176 | /*@i@*/ return (c); /* not a real copy for conj's */ | |
1177 | default: | |
1178 | llbug (message ("ctbase_copy: %q", ctbase_unparse (c))); | |
1179 | } | |
1180 | ||
1181 | BADEXIT; | |
1182 | } | |
1183 | ||
1184 | static enumNameList | |
1185 | ctbase_elist (ctbase c) | |
1186 | { | |
1187 | llassert (ctbase_isDefined (c)); | |
1188 | llassert (c->type == CT_ENUM); | |
1189 | ||
1190 | return (c->contents.cenum->members); | |
1191 | } | |
1192 | ||
1193 | static void | |
1194 | ctbase_free (/*@only@*/ ctbase c) | |
1195 | { | |
1196 | if (c == ctbase_bool || c == ctbase_unknown) | |
1197 | { | |
1198 | /*@-mustfree@*/ return; /*@=mustfree@*/ | |
1199 | } | |
1200 | ||
1201 | --nctbases; | |
1202 | ||
1203 | ||
1204 | if (ctbase_isDefined (c)) | |
1205 | { | |
1206 | switch (c->type) | |
1207 | { | |
1208 | case CT_UNKNOWN: | |
1209 | sfree (c); | |
1210 | break; | |
1211 | case CT_PRIM: | |
1212 | sfree (c); | |
1213 | break; | |
1214 | case CT_ENUM: | |
1215 | sfree (c); | |
1216 | break; | |
1217 | case CT_ENUMLIST: | |
1218 | /* sfree list? */ | |
1219 | sfree (c); | |
1220 | break; | |
1221 | case CT_USER: | |
885824d3 | 1222 | case CT_ABST: |
e5081f8c | 1223 | case CT_NUMABST: |
885824d3 | 1224 | sfree (c); |
1225 | break; | |
1226 | case CT_PTR: | |
1227 | case CT_ARRAY: | |
1228 | sfree (c); | |
1229 | break; | |
1230 | case CT_FCN: | |
b73d1009 | 1231 | /* Cannot free params: uentryList_free (c->contents.fcn->params); */ |
1232 | uentryList_freeShallow (c->contents.fcn->params); | |
885824d3 | 1233 | sfree (c); |
1234 | break; | |
1235 | case CT_STRUCT: | |
1236 | case CT_UNION: | |
1237 | cstring_free (c->contents.su->name); | |
1238 | uentryList_free (c->contents.su->fields); | |
1239 | sfree (c); | |
1240 | break; | |
1241 | case CT_CONJ: | |
1242 | /* Don't bree conj's, */ | |
1243 | break; | |
1244 | default: | |
1245 | sfree (c); | |
1246 | break; | |
1247 | } | |
1248 | } | |
1249 | } | |
1250 | ||
1251 | /* | |
1252 | ** c should be * <unknown> | |
1253 | */ | |
1254 | ||
1255 | static /*@only@*/ ctbase | |
1256 | ctbase_expectFunction (ctype c) | |
1257 | { | |
1258 | ctbase f = ctbase_new (); | |
1259 | ||
1260 | f->type = CT_EXPFCN; | |
1261 | f->contents.base = c; | |
1262 | ||
1263 | return (f); | |
1264 | } | |
1265 | ||
e8b84478 | 1266 | static bool |
abd7f895 | 1267 | ctbase_isExpectFunction (/*@notnull@*/ ctbase ct) /*@*/ |
e8b84478 | 1268 | { |
1269 | return (ct->type == CT_EXPFCN); | |
1270 | } | |
1271 | ||
1272 | static ctype | |
abd7f895 | 1273 | ctbase_getExpectFunction (/*@notnull@*/ ctbase ct) |
e8b84478 | 1274 | { |
1275 | llassert (ctbase_isExpectFunction (ct)); | |
1276 | return ct->contents.base; | |
1277 | } | |
1278 | ||
885824d3 | 1279 | static bool |
a0a162cd | 1280 | ctbase_genMatch (ctbase c1, ctbase c2, bool force, bool arg, bool def, bool deep) |
885824d3 | 1281 | { |
1282 | ctuid c1tid, c2tid; | |
1283 | ||
1284 | /* undefined types never match */ | |
1285 | ||
1286 | if (ctbase_isUndefined (c1) || ctbase_isUndefined (c2)) | |
1287 | return FALSE; | |
1288 | ||
1289 | /* abstract types match user types of same name */ | |
1290 | ||
1291 | c1 = ctbase_realType (c1); | |
1292 | c2 = ctbase_realType (c2); | |
1293 | ||
a0a162cd | 1294 | DPRINTF (("Matching: %s / %s", ctbase_unparse (c1), |
1295 | ctbase_unparse (c2))); | |
1296 | ||
885824d3 | 1297 | c1tid = c1->type; |
1298 | c2tid = c2->type; | |
1299 | ||
1300 | if (c1tid == CT_CONJ) | |
1301 | { | |
1302 | return (ctbase_genMatch (ctype_getCtbase (c1->contents.conj->a), c2, | |
a0a162cd | 1303 | force, arg, def, deep) |
885824d3 | 1304 | || ctbase_genMatch (ctype_getCtbase (c1->contents.conj->b), c2, |
a0a162cd | 1305 | force, arg, def, deep)); |
885824d3 | 1306 | } |
1307 | ||
1308 | if (c2tid == CT_CONJ) | |
1309 | { | |
1310 | return (ctbase_genMatch (c1, ctype_getCtbase (c2->contents.conj->a), | |
a0a162cd | 1311 | force, arg, def, deep) |
885824d3 | 1312 | || ctbase_genMatch (c1, ctype_getCtbase (c2->contents.conj->b), |
a0a162cd | 1313 | force, arg, def, deep)); |
885824d3 | 1314 | } |
1315 | ||
1316 | /* | |
1317 | ** if the types don't match, there are some special cases... | |
1318 | */ | |
1319 | ||
1320 | if (c1tid != c2tid) | |
1321 | { | |
1322 | /* unknowns match anything */ | |
1323 | ||
1324 | if (c1tid == CT_UNKNOWN || c2tid == CT_UNKNOWN) | |
1325 | { | |
1326 | return TRUE; | |
1327 | } | |
1328 | ||
1329 | if (c1tid == CT_FIXEDARRAY | |
1330 | && (c2tid == CT_ARRAY || (!def && c2tid == CT_PTR))) | |
1331 | { | |
1332 | if (ctype_isVoid (c2->contents.base)) | |
1333 | { | |
1334 | return (context_getFlag (FLG_ABSTVOIDP) || | |
1335 | (!(ctype_isRealAbstract (c1->contents.farray->base)) && | |
1336 | !(ctype_isRealAbstract (c2->contents.base)))); | |
1337 | } | |
1338 | ||
1339 | return (ctbase_genMatch (ctype_getCtbase (c1->contents.farray->base), | |
1340 | ctype_getCtbase (c2->contents.base), | |
a0a162cd | 1341 | force, arg, def, deep)); |
885824d3 | 1342 | } |
1343 | ||
1344 | ||
1345 | if (c2tid == CT_FIXEDARRAY | |
1346 | && (c1tid == CT_ARRAY || (!def && c1tid == CT_PTR))) | |
1347 | { | |
1348 | if (ctype_isVoid (c1->contents.base)) | |
1349 | { | |
1350 | return (context_getFlag (FLG_ABSTVOIDP) || | |
1351 | (!(ctype_isRealAbstract (c2->contents.farray->base)) && | |
1352 | !(ctype_isRealAbstract (c1->contents.base)))); | |
1353 | } | |
1354 | ||
1355 | return (ctbase_genMatch (ctype_getCtbase (c1->contents.base), | |
1356 | ctype_getCtbase (c2->contents.farray->base), | |
a0a162cd | 1357 | force, arg, def, deep)); |
885824d3 | 1358 | } |
1359 | ||
a0a162cd | 1360 | /* evs 2000-07-25: Bool's may match user/abstract types */ |
1361 | ||
885824d3 | 1362 | if ((c1tid == CT_BOOL |
1363 | && (c2tid == CT_PRIM && cprim_isInt (c2->contents.prim))) || | |
1364 | (c2tid == CT_BOOL | |
1365 | && (c1tid == CT_PRIM && cprim_isInt (c1->contents.prim)))) | |
1366 | { | |
1367 | return (context_msgBoolInt ()); | |
1368 | } | |
1369 | ||
e5081f8c | 1370 | if ((c1tid == CT_BOOL && (ctuid_isAnyUserType (c2tid)))) { |
a0a162cd | 1371 | ctype t2c = c2->contents.base; |
a0a162cd | 1372 | return (ctype_isBool (t2c)); |
1373 | } | |
1374 | ||
e5081f8c | 1375 | if ((c2tid == CT_BOOL && (ctuid_isAnyUserType (c1tid)))) { |
a0a162cd | 1376 | ctype t1c = c1->contents.base; |
1377 | ||
1378 | return (ctype_isBool (t1c)); | |
1379 | } | |
1380 | ||
885824d3 | 1381 | if ((c1tid == CT_ENUM |
1382 | && (c2tid == CT_PRIM && cprim_isInt (c2->contents.prim))) || | |
1383 | (c2tid == CT_ENUM | |
1384 | && (c1tid == CT_PRIM && cprim_isInt (c1->contents.prim)))) | |
1385 | { | |
1386 | return (context_msgEnumInt ()); | |
1387 | } | |
1388 | ||
1389 | /* | |
1390 | ** arrays and pointers...yuk! | |
1391 | ** | |
1392 | ** Considered equivalent except in definitions. | |
1393 | ** (e.g., function parameters are equivalent) | |
1394 | ** | |
1395 | */ | |
1396 | ||
1397 | if (!def) | |
1398 | { | |
1399 | if (ctuid_isAP (c1tid) && ctuid_isAP (c2tid)) | |
1400 | { | |
1401 | c2tid = c1tid; | |
1402 | } | |
1403 | } | |
1404 | ||
1405 | /* | |
1406 | ** Function pointers can be removed. | |
1407 | ** | |
1408 | ** [function ..] is equivalent to [function ..] * | |
1409 | */ | |
1410 | ||
1411 | if (c1tid == CT_PTR && c2tid == CT_FCN) | |
1412 | { | |
1413 | if (ctype_isFunction (ctype_realType (c1->contents.base))) | |
1414 | { | |
1415 | c1 = ctbase_realType (ctype_getCtbaseSafe (c1->contents.base)); | |
1416 | c1tid = c1->type; | |
1417 | } | |
1418 | } | |
1419 | ||
1420 | if (c2tid == CT_PTR && c1tid == CT_FCN) | |
1421 | { | |
1422 | if (ctype_isFunction (ctype_realType (c2->contents.base))) | |
1423 | { | |
1424 | c2 = ctbase_realType (ctype_getCtbaseSafe (c2->contents.base)); | |
1425 | c2tid = c2->type; | |
1426 | } | |
1427 | } | |
1428 | ||
1429 | /* | |
1430 | ** we allow forward declarations to structures like, | |
1431 | ** | |
1432 | ** typedef struct _t *t; | |
1433 | ** | |
1434 | ** to allow, | |
1435 | ** struct _t * to match t | |
1436 | */ | |
1437 | ||
1438 | if (context_getFlag (FLG_FORWARDDECL)) | |
1439 | { | |
e5081f8c | 1440 | if (ctuid_isAnyUserType (c1tid)) |
885824d3 | 1441 | { |
1442 | if (ctuid_isAP (c2tid)) | |
1443 | { | |
1444 | ctype ts = c2->contents.base; | |
1445 | ||
1446 | if (ctype_isUA (ts)) | |
1447 | { | |
1448 | typeId ttid = ctype_typeId (ts); | |
1449 | typeId ctid = c1->contents.tid ; | |
1450 | ||
1451 | if (usymtab_matchForwardStruct (ctid, ttid)) | |
1452 | { | |
1453 | return TRUE; | |
1454 | } | |
1455 | } | |
1456 | } | |
1457 | } | |
1458 | ||
e5081f8c | 1459 | if (ctuid_isAnyUserType (c2tid)) |
885824d3 | 1460 | { |
1461 | if (ctuid_isAP (c1tid)) | |
1462 | { | |
1463 | ctype ts = c1->contents.base; | |
1464 | ||
1465 | if (ctype_isUA (ts)) | |
1466 | { | |
1467 | typeId ttid = ctype_typeId (ts); | |
1468 | typeId ctid = c2->contents.tid ; | |
1469 | ||
1470 | if (usymtab_matchForwardStruct (ctid, ttid)) | |
1471 | { | |
1472 | return TRUE; | |
1473 | } | |
1474 | } | |
1475 | } | |
1476 | } | |
1477 | } | |
1478 | } | |
1479 | ||
1480 | if (c1tid != c2tid) | |
1481 | return FALSE; | |
1482 | ||
1483 | switch (c1tid) | |
1484 | { | |
1485 | case CT_UNKNOWN: | |
1486 | return (TRUE); | |
1487 | case CT_PRIM: | |
a0a162cd | 1488 | if (deep) { |
1489 | return (cprim_closeEnoughDeep (c1->contents.prim, c2->contents.prim)); | |
1490 | } else { | |
1491 | return (cprim_closeEnough (c1->contents.prim, c2->contents.prim)); | |
1492 | } | |
885824d3 | 1493 | case CT_BOOL: |
1494 | return (TRUE); | |
1495 | case CT_ABST: | |
e5081f8c | 1496 | case CT_NUMABST: |
885824d3 | 1497 | case CT_USER: |
1498 | return (typeId_equal (c1->contents.tid, c2->contents.tid)); | |
1499 | case CT_ENUM: | |
1500 | return (cstring_equal (c1->contents.cenum->tag, c2->contents.cenum->tag)); | |
1501 | case CT_PTR: | |
1502 | if (ctype_isVoid (c1->contents.base) | |
1503 | || (ctype_isVoid (c2->contents.base))) | |
1504 | { | |
1505 | if (ctype_isFunction (ctype_realType (c1->contents.base)) | |
1506 | || ctype_isFunction (ctype_realType (c2->contents.base))) | |
1507 | { | |
1508 | return (!context_getFlag (FLG_CASTFCNPTR)); | |
1509 | } | |
1510 | else | |
1511 | { | |
1512 | return (context_getFlag (FLG_ABSTVOIDP) || | |
1513 | (!(ctype_isRealAbstract (c1->contents.base)) && | |
1514 | !(ctype_isRealAbstract (c2->contents.base)))); | |
1515 | } | |
1516 | } | |
1517 | else | |
1518 | { | |
1519 | /* Only allow one implicit function pointer. */ | |
1520 | ||
1521 | if (!bool_equal (ctype_isRealPointer (c1->contents.base), | |
1522 | ctype_isRealPointer (c2->contents.base)) | |
1523 | && (ctype_isRealFunction (c1->contents.base) | |
1524 | || ctype_isRealFunction (c2->contents.base))) | |
1525 | { | |
1526 | return FALSE; | |
1527 | } | |
a0a162cd | 1528 | |
885824d3 | 1529 | return (ctype_genMatch (c1->contents.base, |
a0a162cd | 1530 | c2->contents.base, force, arg, def, TRUE)); |
885824d3 | 1531 | } |
1532 | case CT_FIXEDARRAY: | |
1533 | if (ctype_isVoid (c1->contents.farray->base) | |
1534 | || ctype_isVoid (c2->contents.farray->base)) | |
1535 | return TRUE; | |
1536 | return (ctype_genMatch (c1->contents.farray->base, | |
1537 | c2->contents.farray->base, | |
a0a162cd | 1538 | force, arg, def, deep)); |
885824d3 | 1539 | case CT_ARRAY: |
1540 | if (ctype_isVoid (c1->contents.base) || ctype_isVoid (c2->contents.base)) | |
1541 | return TRUE; | |
a0a162cd | 1542 | return (ctype_genMatch (c1->contents.base, c2->contents.base, force, arg, def, TRUE)); |
885824d3 | 1543 | case CT_FCN: |
1544 | return (ctype_genMatch (c1->contents.fcn->rval, | |
1545 | c2->contents.fcn->rval, | |
a0a162cd | 1546 | force, arg, def, TRUE) |
885824d3 | 1547 | && uentryList_matchParams (c1->contents.fcn->params, |
1548 | c2->contents.fcn->params, | |
1549 | force, TRUE)); | |
1550 | case CT_STRUCT: | |
1551 | case CT_UNION: | |
a0a162cd | 1552 | DPRINTF (("Struct: %s / %s", |
1553 | c1->contents.su->name, | |
1554 | c2->contents.su->name)); | |
1555 | ||
28bf4b0b | 1556 | if (isFakeTag (c1->contents.su->name) |
1557 | && isFakeTag (c2->contents.su->name)) | |
885824d3 | 1558 | { |
28bf4b0b | 1559 | /* Both fake tags, check structure */ |
1560 | if (cstring_equal (c1->contents.su->name, c2->contents.su->name)) | |
1561 | { | |
1562 | return TRUE; | |
1563 | } | |
1564 | else | |
1565 | { | |
1566 | return uentryList_matchFields (c1->contents.su->fields, | |
1567 | c2->contents.su->fields); | |
1568 | } | |
885824d3 | 1569 | } |
1570 | else | |
1571 | { | |
28bf4b0b | 1572 | if (!cstring_isEmpty (c1->contents.su->name)) |
885824d3 | 1573 | { |
28bf4b0b | 1574 | return (cstring_equal (c1->contents.su->name, c2->contents.su->name)); |
1575 | } | |
1576 | else | |
1577 | { | |
1578 | if (!cstring_isEmpty (c2->contents.su->name)) | |
1579 | { | |
1580 | return FALSE; | |
1581 | } | |
1582 | ||
1583 | llcontbuglit ("ctbase_genMatch: match fields"); | |
1584 | return (FALSE); | |
885824d3 | 1585 | } |
885824d3 | 1586 | } |
1587 | default: | |
1588 | llcontbug (message ("ctbase_genMatch: unknown type: %d\n", (int)c1tid)); | |
1589 | return (FALSE); | |
1590 | } | |
1591 | } | |
1592 | ||
1593 | /* | |
1594 | ** like ctbase_match, except for conjuncts: | |
1595 | ** modifies conjuncts to match only | |
1596 | */ | |
1597 | ||
1598 | static bool | |
a0a162cd | 1599 | ctbase_forceMatch (ctbase c1, ctbase c2) /*@modifies c1, c2@*/ |
885824d3 | 1600 | { |
a0a162cd | 1601 | return (ctbase_genMatch (c1, c2, TRUE, FALSE, FALSE, FALSE)); |
885824d3 | 1602 | } |
1603 | ||
1604 | static bool | |
1605 | ctbase_match (ctbase c1, ctbase c2) /*@modifies nothing@*/ | |
1606 | { | |
a0a162cd | 1607 | return (ctbase_genMatch (c1, c2, FALSE, FALSE, FALSE, FALSE)); |
885824d3 | 1608 | } |
1609 | ||
1610 | static bool | |
1611 | ctbase_matchDef (ctbase c1, ctbase c2) /*@modifies nothing@*/ | |
1612 | { | |
a0a162cd | 1613 | return (ctbase_genMatch (c1, c2, FALSE, FALSE, TRUE, FALSE)); |
885824d3 | 1614 | } |
1615 | ||
1616 | static bool | |
1617 | ctbase_matchArg (ctbase c1, ctbase c2) | |
1618 | { | |
a0a162cd | 1619 | return (ctbase_genMatch (c1, c2, FALSE, TRUE, FALSE, FALSE)); |
885824d3 | 1620 | } |
1621 | ||
1622 | static /*@out@*/ /*@only@*/ /*@notnull@*/ ctbase | |
1623 | ctbase_new () | |
1624 | { | |
1625 | ctbase c = (ctbase) dmalloc (sizeof (*c)); | |
1626 | ||
1627 | nctbases++; | |
1628 | /* | |
1629 | if (nctbases % 100 == 0 && nctbases > lastnc) | |
1630 | { | |
1631 | llmsg (message ("ctbases: %d", nctbases)); | |
1632 | lastnc = nctbases; | |
1633 | } | |
1634 | */ | |
1635 | return (c); | |
1636 | } | |
1637 | ||
1638 | static /*@only@*/ ctbase | |
1639 | ctbase_createPrim (cprim p) | |
1640 | { | |
1641 | ctbase c = ctbase_new (); | |
1642 | ||
1643 | c->type = CT_PRIM; | |
1644 | c->contents.prim = p; | |
1645 | ||
1646 | return (c); | |
1647 | } | |
1648 | ||
1649 | static /*@observer@*/ ctbase | |
1650 | ctbase_getBool (void) | |
1651 | { | |
1652 | /*@i@*/ return ctbase_createBool (); | |
1653 | } | |
1654 | ||
1655 | static ctbase | |
1656 | ctbase_createBool () | |
1657 | { | |
1658 | if (!ctbase_isDefined (ctbase_bool)) | |
1659 | { | |
1660 | ctbase_bool = ctbase_new (); | |
1661 | ctbase_bool->type = CT_BOOL; | |
1662 | ctbase_bool->contents.prim = CTX_BOOL; | |
1663 | } | |
1664 | ||
1665 | /*@-retalias@*/ /*@-globstate@*/ | |
1666 | return ctbase_bool; | |
1667 | /*@=retalias@*/ /*@=globstate@*/ | |
1668 | } | |
1669 | ||
1670 | static /*@only@*/ ctbase | |
1671 | ctbase_createUser (typeId u) | |
1672 | { | |
1673 | ctbase c = ctbase_new (); | |
1674 | ||
1675 | c->type = CT_USER; | |
1676 | c->contents.tid = u; | |
1677 | ||
1678 | llassert (typeId_isValid (u)); | |
1679 | ||
1680 | return (c); | |
1681 | } | |
1682 | ||
1683 | static /*@only@*/ ctbase | |
1684 | ctbase_createEnum (/*@keep@*/ cstring etag, /*@keep@*/ enumNameList emembers) | |
1685 | { | |
1686 | ctbase c = ctbase_new (); | |
1687 | ||
1688 | c->type = CT_ENUM; | |
1689 | ||
1690 | if (cstring_isUndefined (etag)) | |
1691 | { | |
1692 | llcontbuglit ("Undefined enum tag!"); | |
1693 | etag = fakeTag (); | |
1694 | } | |
1695 | ||
1696 | c->contents.cenum = (tenum) dmalloc (sizeof (*c->contents.cenum)); | |
1697 | c->contents.cenum->tag = etag; | |
1698 | c->contents.cenum->members = emembers; | |
1699 | ||
1700 | return (c); | |
1701 | } | |
1702 | ||
1703 | static /*@observer@*/ cstring | |
1704 | ctbase_enumTag (/*@notnull@*/ ctbase ct) | |
1705 | { | |
1706 | return (ct->contents.cenum->tag); | |
1707 | } | |
1708 | ||
1709 | static /*@only@*/ ctbase | |
1710 | ctbase_createAbstract (typeId u) | |
1711 | { | |
1712 | ctbase c = ctbase_new (); | |
1713 | ||
1714 | c->type = CT_ABST; | |
1715 | c->contents.tid = u; | |
1716 | ||
1717 | /* also check its abstract? */ | |
1718 | ||
1719 | llassert (typeId_isValid (c->contents.tid)); | |
1720 | ||
1721 | return (c); | |
1722 | } | |
1723 | ||
e5081f8c | 1724 | static /*@only@*/ ctbase |
1725 | ctbase_createNumAbstract (typeId u) | |
1726 | { | |
1727 | ctbase c = ctbase_new (); | |
1728 | ||
1729 | c->type = CT_NUMABST; | |
1730 | c->contents.tid = u; | |
1731 | ||
1732 | /* also check its abstract? */ | |
1733 | ||
1734 | llassert (typeId_isValid (c->contents.tid)); | |
1735 | return (c); | |
1736 | } | |
1737 | ||
885824d3 | 1738 | static /*@only@*/ ctbase |
1739 | ctbase_createUnknown (void) | |
1740 | { | |
1741 | if (!ctbase_isDefined (ctbase_unknown)) | |
1742 | { | |
1743 | ctbase_unknown = ctbase_new (); | |
1744 | ctbase_unknown->type = CT_UNKNOWN; | |
1745 | ctbase_unknown->contents.prim = CTX_UNKNOWN; | |
1746 | } | |
1747 | ||
1748 | /*@-retalias@*/ /*@-globstate@*/ | |
1749 | return ctbase_unknown; | |
1750 | /*@=retalias@*/ /*@=globstate@*/ | |
1751 | } | |
1752 | ||
1753 | /* | |
1754 | ** requires: result is not assigned to b | |
1755 | ** (should copy, but no way to reclaim storage) | |
1756 | */ | |
1757 | ||
1758 | static /*@only@*/ ctbase | |
1759 | ctbase_makePointer (ctype b) | |
1760 | { | |
1761 | ctbase c = ctbase_new (); | |
1762 | ||
1763 | c->type = CT_PTR; | |
1764 | c->contents.base = b; | |
1765 | ||
1766 | return (c); | |
1767 | } | |
1768 | ||
1769 | static /*@only@*/ ctbase | |
1770 | ctbase_makeArray (ctype b) | |
1771 | { | |
1772 | ctbase c = ctbase_new (); | |
1773 | ||
1774 | c->type = CT_ARRAY; | |
1775 | c->contents.base = b; | |
1776 | ||
1777 | return (c); | |
1778 | } | |
1779 | ||
1780 | static /*@notnull@*/ /*@only@*/ ctbase | |
37ae0b5e | 1781 | ctbase_makeFixedArray (ctype b, size_t size) |
885824d3 | 1782 | { |
1783 | ctbase c = ctbase_new (); | |
1784 | ||
1785 | c->type = CT_FIXEDARRAY; | |
1786 | ||
1787 | c->contents.farray = (tfixed) dmalloc (sizeof (*c->contents.farray)); | |
1788 | c->contents.farray->base = b; | |
1789 | c->contents.farray->size = size; | |
1790 | ||
1791 | return (c); | |
1792 | } | |
1793 | ||
1794 | static ctype | |
1795 | ctbase_makeFunction (ctype b, /*@only@*/ uentryList p) | |
1796 | { | |
1797 | ctbase c = ctbase_new (); | |
1798 | ctype ct; | |
1799 | ||
1800 | c->type = CT_FCN; | |
1801 | c->contents.fcn = (cfcn) dmalloc (sizeof (*c->contents.fcn)); | |
1802 | ||
1803 | if (ctype_isFunction (b)) /* was: && ctype_isPointer (b)) */ | |
1804 | { | |
1805 | ctbase ctb; | |
1806 | ctype rval; | |
1807 | ||
1808 | if (ctype_isPointer (b)) | |
1809 | { | |
1810 | ctb = ctype_getCtbase (ctype_baseArrayPtr (b)); | |
1811 | } | |
1812 | else | |
1813 | { | |
1814 | ctb = ctype_getCtbase (b); | |
1815 | } | |
1816 | ||
1817 | llassert (ctbase_isDefined (ctb)); | |
1818 | llassert (ctb->type == CT_FCN); | |
1819 | ||
1820 | rval = ctype_makeFunction (ctb->contents.fcn->rval, p); | |
1821 | ||
1822 | c->contents.fcn->rval = rval; | |
28bf4b0b | 1823 | c->contents.fcn->params = uentryList_copy (ctb->contents.fcn->params); /* no copy before */ |
885824d3 | 1824 | } |
1825 | else | |
1826 | { | |
1827 | c->contents.fcn->rval = b; | |
28bf4b0b | 1828 | c->contents.fcn->params = uentryList_copy (p); /* no copy before */ |
885824d3 | 1829 | /*@-branchstate@*/ /* p is really released on this branch */ |
1830 | } | |
1831 | /*@=branchstate@*/ | |
1832 | ||
1833 | ct = cttable_addComplex (c); | |
1834 | return (ct); /* was: ctype_makePointer (ct)); */ | |
1835 | } | |
1836 | ||
1837 | static ctype | |
1838 | ctbase_makeNFFunction (ctype b, /*@only@*/ uentryList p) | |
1839 | { | |
1840 | ctbase c = ctbase_new (); | |
1841 | ctype ct; | |
1842 | ||
1843 | c->type = CT_FCN; | |
1844 | c->contents.fcn = (cfcn) dmalloc (sizeof (*c->contents.fcn)); | |
1845 | ||
1846 | if (ctype_isFunction (b)) /* was && ctype_isPointer (b)) */ | |
1847 | { | |
1848 | ctbase ctb; | |
1849 | ctype rval; | |
1850 | ||
1851 | if (ctype_isPointer (b)) | |
1852 | { | |
1853 | ctb = ctype_getCtbase (ctype_baseArrayPtr (b)); | |
1854 | } | |
1855 | else | |
1856 | { | |
1857 | ctb = ctype_getCtbase (b); | |
1858 | } | |
1859 | ||
1860 | llassert (ctbase_isDefined (ctb)); | |
1861 | llassert (ctb->type == CT_FCN); | |
1862 | ||
1863 | rval = ctype_makeNFParamsFunction (ctb->contents.fcn->rval, p); | |
1864 | ||
1865 | c->contents.fcn->rval = rval; | |
28bf4b0b | 1866 | c->contents.fcn->params = uentryList_copy (ctb->contents.fcn->params); |
885824d3 | 1867 | } |
1868 | else | |
1869 | { | |
1870 | c->contents.fcn->rval = b; | |
28bf4b0b | 1871 | c->contents.fcn->params = uentryList_copy (p); |
885824d3 | 1872 | /*@-branchstate@*/ |
1873 | } | |
1874 | /*@=branchstate@*/ | |
1875 | ||
1876 | ct = cttable_addComplex (c); | |
1877 | return (ct); /* was: ctype_makePointer (ct)); */ | |
1878 | } | |
1879 | ||
1880 | static /*@only@*/ ctbase | |
28bf4b0b | 1881 | ctbase_makeLiveFunction (ctype b, /*@only@*/ uentryList p) |
885824d3 | 1882 | { |
1883 | ctbase c = ctbase_new (); | |
1884 | ||
1885 | c->type = CT_FCN; | |
1886 | ||
1887 | c->contents.fcn = (cfcn) dmalloc (sizeof (*c->contents.fcn)); | |
1888 | c->contents.fcn->rval = b; | |
1889 | c->contents.fcn->params = p; | |
885824d3 | 1890 | |
1891 | /*@-mustfree@*/ return (c); /*@=mustfree@*/ | |
1892 | } | |
1893 | ||
885824d3 | 1894 | static /*@observer@*/ /*@notnull@*/ ctbase |
1895 | ctbase_realFunction (/*@dependent@*/ /*@notnull@*/ ctbase c) | |
1896 | { | |
1897 | ctbase res; | |
1898 | ||
1899 | if (c->type == CT_FCN) | |
1900 | { | |
1901 | return c; | |
1902 | } | |
1903 | ||
1904 | llassert (ctbase_isFunction (c)); | |
1905 | ||
1906 | res = ctype_getCtbase (c->contents.base); | |
1907 | ||
1908 | llassert (ctbase_isDefined (res)); | |
1909 | ||
1910 | return (res); | |
1911 | } | |
1912 | ||
1913 | static bool | |
1914 | ctbase_isFunction (ctbase c) | |
1915 | { | |
1916 | llassert (c != ctbase_undefined); | |
1917 | ||
1918 | if (c->type == CT_FCN) | |
1919 | { | |
1920 | return TRUE; | |
1921 | } | |
1922 | else | |
1923 | { | |
1924 | if (c->type == CT_PTR) | |
1925 | { | |
1926 | ctbase fcn = ctype_getCtbase (ctbase_baseArrayPtr (c)); | |
1927 | ||
1928 | return (ctbase_isDefined (fcn) && fcn->type == CT_FCN); | |
1929 | } | |
1930 | ||
1931 | return FALSE; | |
1932 | } | |
1933 | } | |
1934 | ||
1935 | /* doesn't copy c1 and c2 */ | |
1936 | ||
1937 | static /*@only@*/ ctbase | |
1938 | ctbase_makeConj (ctype c1, ctype c2, bool isExplicit) | |
1939 | { | |
1940 | ctbase c = ctbase_new (); | |
1941 | ||
1942 | c->type = CT_CONJ; | |
1943 | ||
1944 | c->contents.conj = (tconj) dmalloc (sizeof (*c->contents.conj)); | |
1945 | c->contents.conj->a = c1; | |
1946 | c->contents.conj->b = c2; | |
1947 | c->contents.conj->isExplicit = isExplicit; | |
1948 | ||
1949 | return (c); | |
1950 | } | |
1951 | ||
d5047b91 | 1952 | static bool ctbase_isAnytype (/*@notnull@*/ ctbase b) |
1953 | { | |
1954 | /* | |
1955 | ** A unknown|dne conj is a special representation for an anytype. | |
1956 | */ | |
1957 | ||
1958 | if (b->type == CT_CONJ) | |
1959 | { | |
1960 | /*@access ctype@*/ | |
1961 | return (b->contents.conj->a == ctype_unknown | |
1962 | && b->contents.conj->b == ctype_dne); | |
1963 | /*@noaccess ctype@*/ | |
1964 | } | |
1965 | ||
1966 | return FALSE; | |
1967 | } | |
1968 | ||
885824d3 | 1969 | static ctype |
1970 | ctbase_getConjA (/*@notnull@*/ ctbase c) | |
1971 | { | |
1972 | llassert (c->type == CT_CONJ); | |
1973 | return (c->contents.conj->a); | |
1974 | } | |
1975 | ||
1976 | static ctype | |
1977 | ctbase_getConjB (/*@notnull@*/ ctbase c) | |
1978 | { | |
1979 | llassert (c->type == CT_CONJ); | |
1980 | return (c->contents.conj->b); | |
1981 | } | |
1982 | ||
1983 | static bool | |
1984 | ctbase_isExplicitConj (/*@notnull@*/ ctbase c) | |
1985 | { | |
1986 | llassert (c->type == CT_CONJ); | |
1987 | return (c->contents.conj->isExplicit); | |
1988 | } | |
1989 | ||
1990 | static /*@only@*/ ctbase | |
1991 | ctbase_createStruct (/*@only@*/ cstring n, /*@only@*/ uentryList f) | |
1992 | { | |
1993 | ctbase c = ctbase_new (); | |
1994 | ||
1995 | c->type = CT_STRUCT; | |
1996 | ||
1997 | c->contents.su = (tsu) dmalloc (sizeof (*c->contents.su)); | |
1998 | c->contents.su->name = n; | |
1999 | c->contents.su->fields = f; | |
2000 | ||
2001 | return (c); | |
2002 | } | |
2003 | ||
2004 | static /*@observer@*/ uentryList | |
2005 | ctbase_getuentryList (/*@notnull@*/ ctbase c) | |
2006 | { | |
2007 | c = ctbase_realType (c); | |
2008 | ||
2009 | if (!(c->type == CT_STRUCT || c->type == CT_UNION)) | |
2010 | llfatalbug (message ("ctbase_getuentryList: bad invocation: %q", ctbase_unparse (c))); | |
2011 | ||
2012 | return (c->contents.su->fields); | |
2013 | } | |
2014 | ||
2015 | static ctbase | |
2016 | ctbase_createUnion (/*@keep@*/ cstring n, /*@only@*/ uentryList f) | |
2017 | { | |
2018 | ctbase c = ctbase_new (); | |
2019 | ||
2020 | c->type = CT_UNION; | |
2021 | ||
2022 | c->contents.su = (tsu) dmalloc (sizeof (*c->contents.su)); | |
2023 | c->contents.su->name = n; | |
2024 | c->contents.su->fields = f; | |
2025 | ||
2026 | return (c); | |
2027 | } | |
2028 | ||
2029 | static ctype | |
2030 | ctbase_baseArrayPtr (/*@notnull@*/ ctbase c) | |
2031 | { | |
2032 | ctuid ct; | |
2033 | c = ctbase_realType (c); | |
2034 | ct = c->type; | |
2035 | ||
2036 | if (ct == CT_FIXEDARRAY) | |
2037 | { | |
2038 | return c->contents.farray->base; | |
2039 | } | |
2040 | else | |
2041 | { | |
2042 | llassert (ctuid_isAP (ct)); | |
2043 | ||
2044 | return c->contents.base; | |
2045 | } | |
2046 | } | |
2047 | ||
2048 | static ctype | |
2049 | ctbase_baseFunction (/*@notnull@*/ ctbase c) | |
2050 | { | |
2051 | ctbase_fixUser (c); | |
2052 | c = ctbase_realFunction (c); | |
2053 | ||
2054 | if (c->type != CT_FCN) | |
2055 | { | |
2056 | llfatalbug (message ("ctbase_baseFunction: bad call: %q", ctbase_unparse (c))); | |
2057 | } | |
2058 | ||
2059 | return (c->contents.fcn->rval); | |
2060 | } | |
2061 | ||
2062 | static uentryList | |
2063 | ctbase_argsFunction (/*@notnull@*/ ctbase c) | |
2064 | { | |
2065 | ctbase_fixUser (c); | |
2066 | c = ctbase_realFunction (c); | |
2067 | ||
2068 | if (c->type != CT_FCN) | |
2069 | { | |
2070 | llfatalbug (message ("ctbase_argsFunction: bad call: %q", | |
2071 | ctbase_unparse (c))); | |
2072 | } | |
2073 | return (c->contents.fcn->params); | |
2074 | } | |
2075 | ||
2076 | static bool | |
2077 | ctbase_baseisExpFcn (ctype c) | |
2078 | { | |
2079 | ctbase cb; | |
2080 | c = ctype_removePointers (c); | |
2081 | ||
2082 | cb = ctype_getCtbase (c); | |
2083 | llassert (ctbase_isDefined (cb)); | |
2084 | ||
2085 | if (cb->type == CT_FCN) | |
2086 | { | |
28bf4b0b | 2087 | c = ctype_removePointers (ctype_getReturnType (c)); |
885824d3 | 2088 | |
2089 | cb = ctype_getCtbase (c); | |
2090 | llassert (ctbase_isDefined (cb)); | |
2091 | ||
2092 | return (cb->type == CT_EXPFCN); | |
2093 | } | |
2094 | return FALSE; | |
2095 | } | |
2096 | ||
2097 | /* | |
2098 | ** ctbase_newBase behaves specially when p is a CONJ: | |
2099 | ** | |
2100 | ** c -> conj (newBase (c, p.a), p.b) | |
2101 | */ | |
2102 | ||
2103 | static ctype | |
2104 | ctbase_newBase (ctype c, ctype p) | |
2105 | { | |
2106 | ctbase cb; | |
2107 | ||
2108 | DPRINTF (("New base: %s / %s", ctype_unparse (c), ctype_unparse (p))); | |
2109 | ||
28bf4b0b | 2110 | if (ctype_isUndefined (c) || ctype_isUnknown (c)) |
885824d3 | 2111 | { |
2112 | return p; | |
2113 | } | |
2114 | ||
28bf4b0b | 2115 | cb = ctype_getCtbase (c); |
2116 | ||
885824d3 | 2117 | if (ctype_isConj (p)) |
2118 | { | |
2119 | ctbase pb = ctype_getCtbase (p); | |
2120 | ||
2121 | llassert (ctbase_isDefined (pb)); | |
2122 | ||
2123 | if (pb->contents.conj->isExplicit) | |
2124 | { | |
2125 | return (ctype_makeExplicitConj (ctype_newBase (c, pb->contents.conj->a), | |
2126 | pb->contents.conj->b)); | |
2127 | ||
2128 | } | |
2129 | else | |
2130 | { | |
2131 | return (ctype_makeConj (ctype_newBase (c, pb->contents.conj->a), | |
2132 | pb->contents.conj->b)); | |
2133 | ||
2134 | } | |
2135 | } | |
2136 | ||
2137 | if (ctbase_baseisExpFcn (c)) | |
2138 | { | |
2139 | return (ctbase_newBaseExpFcn (c, p)); | |
2140 | } | |
2141 | ||
2142 | llassert (ctbase_isDefined (cb)); | |
2143 | ||
2144 | switch (cb->type) | |
2145 | { | |
2146 | case CT_UNKNOWN: | |
2147 | case CT_PRIM: | |
2148 | case CT_USER: | |
2149 | case CT_ENUM: | |
2150 | case CT_ABST: | |
e5081f8c | 2151 | case CT_NUMABST: |
885824d3 | 2152 | case CT_STRUCT: |
2153 | case CT_UNION: | |
2154 | case CT_EXPFCN: | |
2155 | return (p); | |
2156 | ||
2157 | case CT_PTR: | |
2158 | { | |
2159 | ctype ret; | |
2160 | ctype cbn; | |
2161 | ||
2162 | cbn = ctbase_newBase (cb->contents.base, p); | |
2163 | ret = ctype_makePointer (cbn); | |
2164 | ||
2165 | return ret; | |
2166 | } | |
2167 | case CT_FIXEDARRAY: | |
2168 | return (ctype_makeFixedArray (ctbase_newBase (cb->contents.farray->base, p), | |
2169 | cb->contents.farray->size)); | |
2170 | case CT_ARRAY: | |
2171 | return (ctype_makeArray (ctbase_newBase (cb->contents.base, p))); | |
2172 | case CT_FCN: | |
28bf4b0b | 2173 | return (ctype_makeRawFunction (ctbase_newBase (cb->contents.fcn->rval, p), |
885824d3 | 2174 | cb->contents.fcn->params)); |
2175 | case CT_CONJ: | |
2176 | return (ctype_makeConjAux (ctbase_newBase (cb->contents.conj->a, p), | |
2177 | ctbase_newBase (cb->contents.conj->b, p), | |
2178 | cb->contents.conj->isExplicit)); | |
2179 | default: | |
2180 | llcontbug (message ("ctbase_newBase: bad ctbase: %q", ctbase_unparse (cb))); | |
2181 | return (p); | |
2182 | } | |
2183 | BADEXIT; | |
2184 | } | |
2185 | ||
2186 | static ctype | |
2187 | ctbase_newBaseExpFcn (ctype c, ctype p) | |
2188 | { | |
2189 | ctbase cb = ctype_getCtbase (c); | |
2190 | ctbase tcb; | |
2191 | ctype ret, tmpct; | |
2192 | ctype fp = ctype_unknown; | |
2193 | uentryList ctargs = ctype_argsFunction (c); | |
2194 | ||
2195 | /* | |
2196 | ** okay, this is really ugly... | |
2197 | ** | |
2198 | ** pointers inside <expf> mean pointers to the function; | |
2199 | ** pointers outside <expf> are pointers to the return value; | |
2200 | ** because its a function there is one superfluous pointer. | |
2201 | */ | |
2202 | ||
2203 | /* | |
2204 | ** bf is a ctype, used to derived structure of cb | |
2205 | */ | |
2206 | ||
2207 | if (!ctbase_isFunction (cb)) | |
2208 | llbuglit ("ctbase_newBaseExpFcn: expFcn -> not a function"); | |
2209 | ||
28bf4b0b | 2210 | tmpct = ctype_getBaseType (ctype_getReturnType (c)); |
885824d3 | 2211 | |
2212 | /* | |
2213 | ** pointers before expfcn -> p are pointers to function, not result | |
2214 | ** | |
2215 | */ | |
2216 | ||
2217 | tcb = ctype_getCtbase (tmpct); | |
2218 | ||
2219 | llassert (ctbase_isDefined (tcb)); | |
2220 | tmpct = tcb->contents.base; | |
2221 | ||
2222 | /* | |
2223 | ** record pointers to base in fp | |
2224 | */ | |
2225 | ||
2226 | while (!ctype_isUnknown (tmpct)) | |
2227 | { | |
2228 | if (ctype_isExpFcn (tmpct)) { | |
2229 | ctbase ttcb = ctype_getCtbase (tmpct); | |
2230 | ||
2231 | /* | |
2232 | ** evs 2000-05-16: This is necessary to deal with function pointers in parens. | |
2233 | ** The whole function pointer parsing is a major kludge, but it seems to work, | |
2234 | ** and I'm only embarrassed by it when I haven't look at the C spec recently... | |
2235 | */ | |
2236 | ||
2237 | llassert (ctbase_isDefined (ttcb)); | |
2238 | tmpct = ttcb->contents.base; | |
2239 | llassert (!ctype_isUnknown (tmpct)); | |
2240 | } | |
2241 | ||
2242 | switch (ctype_getCtKind (tmpct)) | |
2243 | { | |
2244 | case CTK_PTR: | |
2245 | fp = ctype_makePointer (fp); | |
2246 | /*@switchbreak@*/ break; | |
2247 | case CTK_ARRAY: | |
2248 | fp = ctype_makeArray (fp); | |
2249 | /*@switchbreak@*/ break; | |
2250 | case CTK_COMPLEX: | |
2251 | { | |
2252 | ctbase fbase = ctype_getCtbase (tmpct); | |
2253 | ||
2254 | if (ctbase_isFunction (fbase)) | |
2255 | { | |
2256 | fp = ctype_makeFunction (fp, uentryList_copy (ctargs)); | |
2257 | ctargs = ctbase_argsFunction (fbase); | |
2258 | } | |
2259 | else | |
2260 | { | |
2261 | llbug | |
2262 | (message | |
2263 | ("ctbase_newBaseExpFcn: fixing expfunction: bad complex type: %s [base: %q]", | |
2264 | ctype_unparse (tmpct), ctbase_unparse (fbase))); | |
2265 | } | |
2266 | goto exitLoop; | |
2267 | } | |
2268 | default: | |
2269 | { | |
2270 | llcontbug | |
2271 | (message ("ctbase_newBaseExpFcn: fixing expfunction: bad type: %s", | |
2272 | ctype_unparse (tmpct))); | |
2273 | goto exitLoop; | |
2274 | } | |
2275 | } | |
2276 | tmpct = ctype_baseArrayPtr (tmpct); | |
2277 | } | |
2278 | ||
2279 | exitLoop: | |
28bf4b0b | 2280 | tmpct = ctype_getReturnType (c); |
885824d3 | 2281 | |
2282 | /* | |
2283 | ** pointers to expf are pointers to return value | |
2284 | */ | |
2285 | ||
2286 | while (!ctype_isExpFcn (tmpct)) | |
2287 | { | |
2288 | switch (ctype_getCtKind (tmpct)) | |
2289 | { | |
2290 | case CTK_PTR: | |
2291 | p = ctype_makePointer (p); | |
2292 | /*@switchbreak@*/ break; | |
2293 | case CTK_ARRAY: | |
2294 | p = ctype_makeArray (p); | |
2295 | /*@switchbreak@*/ break; | |
2296 | case CTK_COMPLEX: | |
2297 | { | |
2298 | ctbase fbase = ctype_getCtbase (tmpct); | |
2299 | ||
2300 | if (ctbase_isFunction (fbase)) | |
2301 | { | |
2302 | p = ctype_makeFunction (p, uentryList_copy (ctbase_argsFunction (fbase))); | |
2303 | } | |
2304 | else | |
2305 | { | |
2306 | llbug | |
2307 | (message | |
2308 | ("ctbase_newBaseExpFcn: fixing expfunction: bad complex type: %s", | |
2309 | ctype_unparse (tmpct))); | |
2310 | } | |
2311 | goto exitLoop2; | |
2312 | } | |
2313 | ||
2314 | default: | |
2315 | { | |
2316 | llcontbug | |
2317 | (message ("ctbase_newBaseExpFcn: fixing expfunction2: bad type: %t", | |
2318 | tmpct)); | |
2319 | goto exitLoop2; | |
2320 | } | |
2321 | } | |
2322 | tmpct = ctype_baseArrayPtr (tmpct); | |
2323 | } | |
2324 | ||
2325 | exitLoop2: | |
2326 | ||
2327 | /* | |
2328 | ** pointers to fp are pointers to function type | |
2329 | */ | |
2330 | ||
28bf4b0b | 2331 | ret = ctype_makeRawFunction (p, uentryList_copy (ctargs)); |
885824d3 | 2332 | |
2333 | while (ctype_getCtKind (fp) > CTK_PLAIN) | |
2334 | { | |
2335 | switch (ctype_getCtKind (fp)) | |
2336 | { | |
2337 | case CTK_PTR: | |
2338 | ret = ctype_makePointer (ret); | |
2339 | /*@switchbreak@*/ break; | |
2340 | case CTK_ARRAY: | |
2341 | ret = ctype_makeArray (ret); | |
2342 | /*@switchbreak@*/ break; | |
2343 | case CTK_COMPLEX: | |
2344 | { | |
2345 | ctbase fbase = ctype_getCtbase (fp); | |
2346 | ||
2347 | if (ctbase_isFunction (fbase)) | |
2348 | { | |
2349 | ret = | |
2350 | ctype_makeFunction (ret, | |
2351 | uentryList_copy (ctbase_argsFunction (fbase))); | |
2352 | } | |
2353 | else | |
2354 | { | |
2355 | BADBRANCH; | |
2356 | } | |
2357 | goto exitLoop3; | |
2358 | } | |
2359 | ||
2360 | default: | |
2361 | { | |
2362 | llcontbug (message ("post-fixing expfunction: bad type: %t", fp)); | |
2363 | goto exitLoop3; | |
2364 | } | |
2365 | } | |
2366 | fp = ctype_baseArrayPtr (fp); | |
2367 | } | |
2368 | ||
2369 | exitLoop3: | |
2370 | return (ret); | |
2371 | } | |
2372 | ||
2373 | /* | |
2374 | ** returns lowest level base of c: plain type | |
2375 | */ | |
2376 | ||
2377 | static /*@notnull@*/ /*@only@*/ ctbase | |
2378 | ctbase_getBaseType (/*@notnull@*/ ctbase c) | |
2379 | { | |
2380 | switch (c->type) | |
2381 | { | |
2382 | case CT_UNKNOWN: | |
2383 | case CT_PRIM: | |
2384 | case CT_USER: | |
2385 | case CT_ENUM: | |
2386 | case CT_ENUMLIST: | |
2387 | case CT_BOOL: | |
2388 | case CT_ABST: | |
e5081f8c | 2389 | case CT_NUMABST: |
885824d3 | 2390 | case CT_FCN: |
2391 | case CT_STRUCT: | |
2392 | case CT_UNION: | |
2393 | return (ctbase_copy (c)); | |
2394 | ||
2395 | case CT_PTR: | |
2396 | case CT_ARRAY: | |
2397 | return (ctbase_getBaseType (ctype_getCtbaseSafe (c->contents.base))); | |
2398 | ||
2399 | case CT_FIXEDARRAY: | |
2400 | return (ctbase_getBaseType (ctype_getCtbaseSafe (c->contents.farray->base))); | |
2401 | case CT_CONJ: /* base type of A conj branch? */ | |
2402 | return (ctbase_getBaseType (ctype_getCtbaseSafe (c->contents.conj->a))); | |
2403 | case CT_EXPFCN: | |
2404 | return (ctbase_copy (c)); | |
2405 | ||
2406 | default: | |
2407 | llfatalbug (message ("ctbase_getBaseType: bad ctbase: %q", ctbase_unparse (c))); | |
2408 | } | |
2409 | ||
2410 | BADEXIT; | |
2411 | } | |
2412 | ||
2413 | static int | |
2414 | ctbase_compare (ctbase c1, ctbase c2, bool strict) | |
2415 | { | |
2416 | ctuid c1tid, c2tid; | |
2417 | ||
2418 | if (ctbase_isUndefined (c1) || ctbase_isUndefined (c2)) | |
2419 | { | |
2420 | llcontbuglit ("ctbase_compare: undefined ctbase"); | |
2421 | return -1; | |
2422 | } | |
2423 | ||
2424 | c1tid = c1->type; | |
2425 | c2tid = c2->type; | |
2426 | ||
2427 | if (c1tid < c2tid) | |
2428 | return -1; | |
2429 | if (c1tid > c2tid) | |
2430 | return 1; | |
2431 | ||
2432 | switch (c1tid) | |
2433 | { | |
2434 | case CT_UNKNOWN: | |
2435 | return 0; | |
2436 | case CT_PRIM: | |
2437 | return (int_compare (c1->contents.prim, c2->contents.prim)); | |
2438 | case CT_BOOL: | |
2439 | return 0; | |
2440 | case CT_USER: | |
b73d1009 | 2441 | return (typeId_compare (c1->contents.tid, c2->contents.tid)); |
885824d3 | 2442 | case CT_ENUMLIST: |
2443 | return 1; | |
2444 | case CT_ENUM: /* for now, keep like abstract */ | |
2445 | case CT_ABST: | |
e5081f8c | 2446 | case CT_NUMABST: |
b73d1009 | 2447 | return (typeId_compare (c1->contents.tid, c2->contents.tid)); |
885824d3 | 2448 | case CT_PTR: |
2449 | return (ctype_compare (c1->contents.base, c2->contents.base)); | |
2450 | case CT_FIXEDARRAY: | |
2451 | INTCOMPARERETURN (c1->contents.farray->size, c2->contents.farray->size); | |
2452 | ||
2453 | return (ctype_compare (c1->contents.farray->base, | |
2454 | c2->contents.farray->base)); | |
2455 | case CT_ARRAY: | |
2456 | return (ctype_compare (c1->contents.base, c2->contents.base)); | |
2457 | case CT_FCN: | |
2458 | { | |
2459 | COMPARERETURN (ctype_compare (c1->contents.fcn->rval, c2->contents.fcn->rval)); | |
2460 | ||
2461 | if (strict) | |
2462 | { | |
2463 | return (uentryList_compareStrict (c1->contents.fcn->params, | |
2464 | c2->contents.fcn->params)); | |
2465 | } | |
2466 | else | |
2467 | { | |
2468 | return (uentryList_compareParams (c1->contents.fcn->params, | |
2469 | c2->contents.fcn->params)); | |
2470 | } | |
2471 | } | |
2472 | case CT_EXPFCN: | |
2473 | return (ctype_compare (c1->contents.base, c2->contents.base)); | |
2474 | case CT_STRUCT: | |
2475 | case CT_UNION: | |
a0a162cd | 2476 | /* evs 2000-07-28: this block was missing! */ |
2477 | if (strict) { | |
2478 | int ncmp = cstring_compare (c1->contents.su->name, | |
2479 | c2->contents.su->name); | |
2480 | ||
2481 | if (ncmp != 0) { | |
2482 | if (isFakeTag (c1->contents.su->name) | |
2483 | && isFakeTag (c2->contents.su->name)) { | |
2484 | ; /* If they are both fake struct tags, don't require match. */ | |
2485 | } else { | |
2486 | return ncmp; | |
2487 | } | |
2488 | } | |
2489 | } | |
2490 | ||
28bf4b0b | 2491 | DPRINTF (("Comparing fields: %s / %s", |
2492 | ctbase_unparse (c1), | |
2493 | ctbase_unparse (c2))); | |
2494 | ||
885824d3 | 2495 | return (uentryList_compareFields (c1->contents.su->fields, |
2496 | c2->contents.su->fields)); | |
2497 | case CT_CONJ: | |
2498 | { | |
2499 | COMPARERETURN (ctype_compare (c1->contents.conj->a, | |
2500 | c2->contents.conj->a)); | |
2501 | COMPARERETURN (ctype_compare (c1->contents.conj->b, | |
2502 | c2->contents.conj->b)); | |
2503 | return (bool_compare (c1->contents.conj->isExplicit, | |
2504 | c2->contents.conj->isExplicit)); | |
2505 | } | |
2506 | } | |
2507 | BADEXIT; | |
2508 | } | |
2509 | ||
2510 | static int | |
2511 | ctbase_compareStrict (/*@notnull@*/ ctbase c1, /*@notnull@*/ ctbase c2) | |
2512 | { | |
2513 | return (ctbase_compare (c1, c2, TRUE)); | |
2514 | } | |
2515 | ||
2516 | static bool ctbase_equivStrict (/*@notnull@*/ ctbase c1, /*@notnull@*/ ctbase c2) | |
2517 | { | |
2518 | return (ctbase_compareStrict (c1,c2) == 0); | |
2519 | } | |
2520 | ||
2521 | static bool ctbase_equiv (/*@notnull@*/ ctbase c1, /*@notnull@*/ ctbase c2) | |
2522 | { | |
2523 | return (ctbase_compare (c1, c2, FALSE) == 0); | |
2524 | } | |
2525 | ||
2526 | static bool | |
2527 | ctbase_isKind (/*@notnull@*/ ctbase c, ctuid kind) | |
2528 | { | |
2529 | ctuid ck = c->type; | |
2530 | ||
2531 | if (ck == kind) | |
2532 | return TRUE; | |
2533 | ||
2534 | if (ck == CT_CONJ) | |
2535 | return (ctbase_isKind (ctype_getCtbaseSafe (c->contents.conj->a), kind) || | |
2536 | ctbase_isKind (ctype_getCtbaseSafe (c->contents.conj->b), kind)); | |
2537 | ||
2538 | return FALSE; | |
2539 | } | |
2540 | ||
2541 | static bool | |
2542 | ctbase_isKind2 (/*@notnull@*/ ctbase c, ctuid kind1, ctuid kind2) | |
2543 | { | |
2544 | ctuid ck = c->type; | |
2545 | ||
2546 | if (ck == kind1 || ck == kind2) | |
2547 | return TRUE; | |
2548 | ||
2549 | if (ck == CT_CONJ) | |
2550 | return (ctbase_isKind2 (ctype_getCtbaseSafe (c->contents.conj->a), kind1, kind2) || | |
2551 | ctbase_isKind2 (ctype_getCtbaseSafe (c->contents.conj->b), kind1, kind2)); | |
2552 | ||
2553 | return FALSE; | |
2554 | } | |
2555 | ||
2556 | static bool | |
2557 | ctbase_isAbstract (/*@notnull@*/ ctbase c) | |
2558 | { | |
e5081f8c | 2559 | return (c->type == CT_ABST || c->type == CT_NUMABST); |
2560 | } | |
2561 | ||
2562 | static bool | |
2563 | ctbase_isNumAbstract (/*@notnull@*/ ctbase c) | |
2564 | { | |
2565 | return (c->type == CT_NUMABST); | |
885824d3 | 2566 | } |
2567 | ||
2568 | static bool ctbase_isUA (ctbase c) | |
2569 | { | |
e5081f8c | 2570 | return (ctbase_isDefined (c) && (ctuid_isAnyUserType (c->type))); |
885824d3 | 2571 | } |
2572 | ||
2573 | static bool | |
2574 | ctbase_almostEqual (ctbase c1, ctbase c2) | |
2575 | { | |
2576 | ctuid c1tid, c2tid; | |
2577 | ||
2578 | /* undefined types never match */ | |
2579 | ||
2580 | if (ctbase_isUndefined (c1) || ctbase_isUndefined (c2)) | |
2581 | return FALSE; | |
2582 | ||
2583 | c1tid = c1->type; | |
2584 | c2tid = c2->type; | |
2585 | ||
2586 | if (c1tid == CT_FIXEDARRAY && c2tid == CT_ARRAY) | |
2587 | { | |
2588 | return (ctbase_almostEqual (ctype_getCtbase (c1->contents.farray->base), | |
2589 | ctype_getCtbase (c2->contents.base))); | |
2590 | } | |
2591 | ||
2592 | if (c2tid == CT_FIXEDARRAY && c1tid == CT_ARRAY) | |
2593 | { | |
2594 | return (ctbase_almostEqual (ctype_getCtbase (c1->contents.base), | |
2595 | ctype_getCtbase (c2->contents.farray->base))); | |
2596 | } | |
2597 | ||
2598 | if (c1tid != c2tid) | |
2599 | return FALSE; | |
2600 | ||
2601 | switch (c1tid) | |
2602 | { | |
2603 | case CT_UNKNOWN: | |
2604 | return TRUE; | |
2605 | case CT_PRIM: | |
2606 | return (cprim_equal (c1->contents.prim, c2->contents.prim)); | |
2607 | case CT_BOOL: | |
2608 | return TRUE; | |
2609 | case CT_ABST: | |
e5081f8c | 2610 | case CT_NUMABST: |
885824d3 | 2611 | case CT_USER: |
2612 | return (typeId_equal (c1->contents.tid, c2->contents.tid)); | |
2613 | case CT_ENUM: | |
2614 | return (cstring_equal (c1->contents.cenum->tag, c2->contents.cenum->tag)); | |
2615 | case CT_PTR: | |
2616 | return (ctype_almostEqual (c1->contents.base, c2->contents.base)); | |
2617 | case CT_FIXEDARRAY: | |
2618 | return (ctype_almostEqual (c1->contents.farray->base, | |
2619 | c2->contents.farray->base)); | |
2620 | case CT_ARRAY: | |
2621 | return (ctype_almostEqual (c1->contents.base, c2->contents.base)); | |
2622 | case CT_FCN: | |
2623 | return (ctype_almostEqual (c1->contents.fcn->rval, c2->contents.fcn->rval) | |
2624 | && uentryList_matchParams (c1->contents.fcn->params, | |
2625 | c2->contents.fcn->params, FALSE, TRUE)); | |
2626 | case CT_STRUCT: | |
2627 | case CT_UNION: | |
2628 | if (!cstring_isEmpty (c1->contents.su->name)) | |
2629 | { | |
2630 | return (cstring_equal (c1->contents.su->name, c2->contents.su->name)); | |
2631 | } | |
2632 | else | |
2633 | { | |
2634 | if (!cstring_isEmpty (c2->contents.su->name)) | |
2635 | { | |
2636 | return FALSE; | |
2637 | } | |
2638 | ||
2639 | llcontbuglit ("ctbase_almostEqual: match fields"); | |
2640 | return (FALSE); | |
2641 | } | |
2642 | default: | |
2643 | llcontbug (message ("ctbase_almostEqual: unknown type: %d\n", (int)c1tid)); | |
2644 | return (FALSE); | |
2645 | } | |
2646 | } | |
28bf4b0b | 2647 | |
2648 | /*drl added July 02, 001 | |
2649 | called by ctype_getArraySize | |
2650 | */ | |
2651 | ||
37ae0b5e | 2652 | size_t ctbase_getArraySize (ctbase ctb) |
28bf4b0b | 2653 | { |
37ae0b5e | 2654 | /*drl 1/25/2002 fixed discovered by Jim Francis */ |
0e5499ac | 2655 | ctbase r; |
28bf4b0b | 2656 | |
0e5499ac | 2657 | llassert (ctbase_isDefined (ctb) ); |
2658 | r = ctbase_realType (ctb); | |
2659 | llassert (ctbase_isFixedArray(r) ); | |
2660 | ||
0e5499ac | 2661 | return (r->contents.farray->size); |
28bf4b0b | 2662 | } |
e5081f8c | 2663 | |
2664 | bool ctbase_isBigger (ctbase ct1, ctbase ct2) | |
2665 | { | |
2666 | if (ct1 != NULL && ct2 != NULL | |
2667 | && (ct1->type == CT_PRIM && ct2->type == CT_PRIM)) | |
2668 | { | |
2669 | /* Only compare sizes for primitives */ | |
2670 | cprim cp1 = ct1->contents.prim; | |
2671 | cprim cp2 = ct2->contents.prim; | |
2672 | int nbits1 = cprim_getExpectedBits (cp1); | |
2673 | int nbits2 = cprim_getExpectedBits (cp2); | |
2674 | ||
2675 | if (nbits1 > nbits2) { | |
2676 | return TRUE; | |
2677 | } else { | |
2678 | return FALSE; | |
2679 | } | |
2680 | } | |
2681 | else | |
2682 | { | |
2683 | return FALSE; | |
2684 | } | |
2685 | } | |
ae133592 | 2686 | |
2687 | int ctbase_getSize (ctbase ct) | |
2688 | { | |
2689 | if (ct == NULL) | |
2690 | { | |
2691 | return 0; | |
2692 | } | |
2693 | ||
2694 | switch (ct->type) | |
2695 | { | |
2696 | case CT_UNKNOWN: | |
2697 | case CT_BOOL: | |
2698 | case CT_PRIM: | |
2699 | { | |
2700 | cprim cp = ct->contents.prim; | |
2701 | int nbits = cprim_getExpectedBits (cp); | |
2702 | return nbits; | |
2703 | } | |
2704 | case CT_USER: | |
2705 | case CT_ABST: | |
2706 | case CT_NUMABST: | |
2707 | case CT_EXPFCN: | |
2708 | { | |
2709 | return 0; | |
2710 | } | |
2711 | case CT_PTR: | |
2712 | { | |
2713 | /* Malloc returns void *, but they are bytes. Normal void * is pointer size. */ | |
2714 | if (ctype_isVoid (ct->contents.base)) | |
2715 | { | |
2716 | return 8; | |
2717 | } | |
2718 | else | |
2719 | { | |
2720 | return ctype_getSize (ct->contents.base); | |
2721 | } | |
2722 | } | |
6317f163 | 2723 | case CT_FIXEDARRAY: |
ae133592 | 2724 | case CT_ARRAY: |
2725 | case CT_FCN: | |
2726 | case CT_STRUCT: | |
2727 | case CT_UNION: | |
2728 | case CT_ENUM: | |
2729 | case CT_CONJ: | |
2730 | break; | |
2731 | BADDEFAULT; | |
2732 | } | |
2733 | ||
2734 | return 0; | |
2735 | ||
2736 | } |