2 ** Copyright (C) University of Virginia, Massachusetts Institue of Technology 1994-2001.
3 ** See ../LICENSE for license information.
12 /*@constant null usymtab GLOBAL_ENV; @*/
13 # define GLOBAL_ENV usymtab_undefined
18 US_TBRANCH, US_FBRANCH,
22 typedef struct s_usentry
24 /*@only@*/ uentry entry;
28 ** Trace entries have a level and index that identify the original entry.
29 ** Not used for normal entries.
44 /*@reldef@*/ /*@only@*/ usentry *entries;
46 /* Optional. Used for the global environment to speed lookups. */
47 /*@null@*/ /*@only@*/ cstringTable htable;
49 /* Guarded references - these references are not null along this path. */
50 /*@i32 This seems unnecessary - the trace entries should cover it...? */
51 /*@only@*/ guardSet guards;
55 /*@owned@*/ usymtab env;
61 ** (left as exercise to reader) ;)
64 extern void usymtab_printTypes (void)
65 /*@globals internalState@*/
66 /*@modifies g_warningstream@*/ ;
68 extern void usymtab_setMustBreak (void) /*@modifies internalState@*/ ;
70 extern bool usymtab_inGlobalScope (void) /*@globals internalState@*/ ;
71 extern bool usymtab_inFunctionScope (void) /*@globals internalState@*/ ;
72 extern bool usymtab_inFileScope (void) /*@globals internalState@*/ ;
73 extern void usymtab_checkFinalScope (bool p_isReturn)
74 /*@globals internalState@*/
75 /*@modifies *g_warningstream@*/ ;
77 extern void usymtab_allUsed (void)
78 /*@globals internalState@*/
79 /*@modifies *g_warningstream@*/ ;
81 extern void usymtab_allDefined (void)
82 /*@globals internalState@*/
83 /*@modifies *g_warningstream@*/ ;
85 extern void usymtab_prepareDump (void)
86 /*@modifies internalState@*/ ;
88 extern void usymtab_dump (FILE *p_fout)
89 /*@globals internalState@*/
90 /*@modifies *p_fout@*/ ;
93 extern void usymtab_load (FILE *p_f) /*@modifies p_f, internalState@*/ ;
95 extern /*@exposed@*/ /*@dependent@*/ uentry
96 usymtab_getRefQuiet (int p_level, usymId p_index)
97 /*@globals internalState@*/ ;
99 extern void usymtab_printLocal (void)
100 /*@globals internalState@*/
101 /*@modifies stdout@*/ ;
103 extern /*@exposed@*/ /*@dependent@*/ uentry usymtab_getParam (int p_paramno)
104 /*@globals internalState@*/;
105 extern void usymtab_free (void) /*@modifies internalState@*/ ;
106 extern bool usymtab_inDeepScope (void) /*@globals internalState@*/ ;
108 extern /*@exposed@*/ uentry usymtab_lookupExpose (cstring p_k)
109 /*@globals internalState@*/ ;
111 extern /*@observer@*/ uentry usymtab_lookup (cstring p_k)
112 /*@globals internalState@*/ ;
114 # define usymtab_lookup(s) (usymtab_lookupExpose (s))
116 extern /*@observer@*/ uentry usymtab_lookupGlob (cstring p_k)
117 /*@globals internalState@*/ ;
118 extern /*@exposed@*/ uentry usymtab_lookupExposeGlob (cstring p_k)
119 /*@globals internalState@*/ ;
120 extern /*@observer@*/ uentry usymtab_lookupUnionTag (cstring p_k)
121 /*@globals internalState@*/ ;
122 extern /*@observer@*/ uentry usymtab_lookupStructTag (cstring p_k)
123 /*@globals internalState@*/ ;
124 extern /*@observer@*/ uentry usymtab_lookupEither (cstring p_k)
125 /*@globals internalState@*/ ;
127 extern ctype usymtab_lookupType (cstring p_k)
128 /*@globals internalState@*/ ;
130 extern bool usymtab_isDefinitelyNull (sRef p_s)
131 /*@globals internalState@*/ ;
132 extern bool usymtab_isDefinitelyNullDeep (sRef p_s)
133 /*@globals internalState@*/ ;
135 extern usymId usymtab_supExposedTypeEntry (/*@only@*/ uentry p_e, bool p_dodef)
136 /*@modifies internalState, p_e@*/ ;
138 extern ctype usymtab_supTypeEntry (/*@only@*/ uentry p_e)
139 /*@modifies internalState, p_e@*/ ;
141 extern /*@exposed@*/ uentry usymtab_supReturnTypeEntry (/*@only@*/ uentry p_e)
142 /*@modifies internalState@*/ ;
144 extern /*@observer@*/ uentry usymtab_lookupSafe (cstring p_k)
145 /*@globals internalState@*/ ;
147 extern /*@observer@*/ uentry usymtab_getGlobalEntry (usymId p_uid)
148 /*@globals internalState@*/ ;
150 extern bool usymtab_exists (cstring p_k)
151 /*@globals internalState@*/ ;
153 extern bool usymtab_existsVar (cstring p_k)
154 /*@globals internalState@*/ ;
156 extern bool usymtab_existsGlob (cstring p_k)
157 /*@globals internalState@*/ ;
159 extern bool usymtab_existsType (cstring p_k)
160 /*@globals internalState@*/ ;
162 extern bool usymtab_existsEither (cstring p_k)
163 /*@globals internalState@*/ ;
165 extern bool usymtab_existsTypeEither (cstring p_k)
166 /*@globals internalState@*/ ;
168 extern usymId usymtab_getId (cstring p_k) /*@globals internalState@*/ ;
169 extern usymId usymtab_getTypeId (cstring p_k) /*@globals internalState@*/ ;
171 extern void usymtab_supEntry (/*@only@*/ uentry p_e)
172 /*@modifies internalState, p_e@*/ ;
174 extern void usymtab_replaceEntry (/*@only@*/ uentry p_s)
175 /*@modifies internalState, p_s@*/ ;
177 extern void usymtab_supEntrySref (/*@only@*/ uentry p_e)
178 /*@modifies internalState, p_e@*/ ;
180 extern void usymtab_supGlobalEntry (/*@only@*/ uentry p_e)
181 /*@modifies internalState@*/ ;
183 extern void usymtab_addGlobalEntry (/*@only@*/ uentry p_e)
184 /*@modifies internalState, p_e@*/ ;
186 extern /*@exposed@*/ uentry
187 usymtab_supEntryReturn (/*@only@*/ uentry p_e)
188 /*@modifies internalState, p_e@*/ ;
190 extern usymId usymtab_addEntry (/*@only@*/ uentry p_e)
191 /*@modifies internalState, p_e@*/ ;
193 extern ctype usymtab_lookupAbstractType (cstring p_k)
194 /*@globals internalState@*/ /*@modifies nothing@*/ ;
196 extern bool usymtab_matchForwardStruct (usymId p_u1, usymId p_u2)
197 /*@globals internalState@*/ ;
199 extern bool usymtab_existsEnumTag (cstring p_k)
200 /*@globals internalState@*/ ;
201 extern bool usymtab_existsUnionTag (cstring p_k)
202 /*@globals internalState@*/ ;
203 extern bool usymtab_existsStructTag (cstring p_k)
204 /*@globals internalState@*/ ;
206 extern usymId usymId_fromInt (int p_i) /*@*/ ;
207 # define usymId_fromInt(i) ((usymId)(i))
209 extern bool usymId_isInvalid (usymId p_u) /*@*/ ;
210 # define usymId_isInvalid(u) ((u) == USYMIDINVALID)
212 extern bool usymId_isValid (usymId p_u) /*@*/ ;
213 # define usymId_isValid(u) ((u) != USYMIDINVALID)
215 extern bool typeId_isInvalid (typeId p_u) /*@*/ ;
216 # define typeId_isInvalid(u) ((u) == typeId_invalid)
218 extern bool typeId_isValid (typeId p_u) /*@*/ ;
219 # define typeId_isValid(u) ((u) != typeId_invalid)
221 extern bool typeId_equal (typeId p_u1, typeId p_u2) /*@*/ ;
222 # define typeId_equal(u1,u2) ((u1) == (u2))
224 extern typeId typeId_fromInt (int p_i);
225 # define typeId_fromInt(i) ((typeId)(i))
227 /*@iter usymtab_entries (sef usymtab u, yield exposed uentry el); @*/
228 # define usymtab_entries(x, m_i) \
230 if (usymtab_isDefined (x)) \
231 for (m_ind = 0; m_ind < (x)->nentries; m_ind++) \
232 { uentry m_i = (x)->entries[m_ind];
234 # define end_usymtab_entries }}
236 extern /*@unused@*/ void usymtab_displayAllUses (void)
237 /*@globals internalState@*/
238 /*@modifies *g_warningstream@*/ ;
240 extern /*@unused@*/ void usymtab_printOut (void)
241 /*@globals internalState@*/
242 /*@modifies *g_warningstream@*/ ;
244 extern /*@unused@*/ void usymtab_printAll (void)
245 /*@globals internalState@*/
246 /*@modifies *g_warningstream@*/ ;
248 extern void usymtab_enterScope (void)
249 /*@modifies internalState;@*/ ;
250 extern void usymtab_enterFunctionScope (uentry p_fcn)
251 /*@modifies internalState;@*/ ;
252 extern void usymtab_quietExitScope (fileloc p_loc)
253 /*@modifies internalState;@*/ ;
254 extern void usymtab_exitScope (exprNode p_expr) /*@modifies internalState@*/ ;
255 extern void usymtab_addGuards (guardSet p_guards) /*@modifies internalState@*/ ;
256 extern void usymtab_setExitCode (exitkind p_ex) /*@modifies internalState@*/ ;
257 extern void usymtab_exitFile (void) /*@modifies internalState@*/ ;
258 extern void usymtab_enterFile (void) /*@modifies internalState@*/ ;
260 extern /*@observer@*/ uentry usymtab_lookupEnumTag (cstring p_k)
261 /*@globals internalState@*/ ;
263 extern usymId usymtab_convertId (usymId p_uid) /*@globals internalState@*/ ;
264 extern void usymtab_initMod (void) /*@modifies internalState@*/ ;
265 extern void usymtab_initBool (void) /*@modifies internalState@*/ ;
266 extern void usymtab_initGlobalMarker (void) /*@modifies internalState@*/ ;
268 extern void usymtab_exportHeader (void)
269 /*@modifies internalState@*/ ;
271 extern ctype usymtab_structFieldsType (uentryList p_f)
272 /*@globals internalState@*/ ;
274 extern ctype usymtab_unionFieldsType (uentryList p_f)
275 /*@globals internalState@*/ ;
277 extern ctype usymtab_enumEnumNameListType (enumNameList p_f)
278 /*@globals internalState@*/ ;
280 extern /*@exposed@*/ uentry usymtab_getTypeEntrySafe (usymId p_uid)
281 /*@globals internalState@*/ ;
283 extern void usymtab_popOrBranch (exprNode p_pred, exprNode p_expr)
284 /*@modifies internalState@*/ ;
285 extern void usymtab_popAndBranch (exprNode p_pred, exprNode p_expr)
286 /*@modifies internalState@*/ ;
288 extern void usymtab_trueBranch (/*@only@*/ guardSet p_guards)
289 /*@modifies internalState@*/ ;
290 extern void usymtab_altBranch (/*@only@*/ guardSet p_guards)
291 /*@modifies internalState@*/ ;
293 extern void usymtab_popTrueBranch (exprNode p_pred, exprNode p_expr, clause p_cl)
294 /*@modifies internalState@*/ ;
297 usymtab_popTrueExecBranch (exprNode p_pred, exprNode p_expr, clause p_cl)
298 /*@modifies internalState@*/ ;
301 usymtab_popBranches (exprNode p_pred, exprNode p_tbranch, exprNode p_fbranch,
302 bool p_isOpt, clause p_cl)
303 /*@modifies internalState@*/ ;
305 extern void usymtab_unguard (sRef p_s) /*@modifies internalState@*/ ;
306 extern bool usymtab_isGuarded (sRef p_s) /*@globals internalState@*/ ;
307 extern void usymtab_printGuards (void) /*@globals internalState@*/ /*@modifies *g_warningstream@*/ ;
308 extern void usymtab_quietPlainExitScope (void) /*@modifies internalState@*/ ;
309 extern void usymtab_printComplete (void) /*@globals internalState@*/ /*@modifies *stdout@*/ ;
311 extern bool usymtab_existsGlobEither (cstring p_k) /*@globals internalState@*/ ;
313 extern bool usymtab_isBoolType (usymId p_uid) /*@globals internalState@*/ ;
314 extern /*@only@*/ cstring
315 usymtab_getTypeEntryName (usymId p_uid)
316 /*@globals internalState@*/ ;
317 extern /*@exposed@*/ uentry usymtab_getTypeEntry (usymId p_uid)
318 /*@globals internalState@*/ ;
321 usymtab_supAbstractTypeEntry (/*@only@*/ uentry p_e, bool p_dodef)
322 /*@modifies internalState, p_e@*/ ;
323 extern ctype usymtab_supForwardTypeEntry (/*@only@*/ uentry p_e)
324 /*@modifies internalState, p_e@*/ ;
326 extern /*@exposed@*/ uentry
327 usymtab_supGlobalEntryReturn (/*@only@*/ uentry p_e)
328 /*@modifies internalState, p_e@*/ ;
330 extern /*@exposed@*/ uentry
331 usymtab_supEntrySrefReturn (/*@only@*/ uentry p_e)
332 /*@modifies internalState, p_e@*/ ;
334 extern int uentry_directParamNo (uentry p_ue)
335 /*@globals internalState@*/ ;
337 extern bool usymtab_newCase (exprNode p_pred, exprNode p_last)
338 /*@modifies internalState@*/ ;
340 extern void usymtab_switchBranch (exprNode p_s)
341 /*@modifies internalState@*/ ;
343 extern /*@only@*/ cstring usymtab_unparseStack (void)
344 /*@globals internalState@*/ ;
345 extern void usymtab_exitSwitch (exprNode p_sw, bool p_allpaths)
346 /*@modifies internalState@*/ ;
348 extern /*@observer@*/ uentry usymtab_lookupGlobSafe (cstring p_k)
349 /*@globals internalState@*/ ;
351 extern /*@only@*/ sRefSet usymtab_aliasedBy (sRef p_s)
352 /*@globals internalState@*/ ;
354 extern /*@only@*/ sRefSet usymtab_canAlias (sRef p_s)
355 /*@globals internalState@*/ ;
357 extern void usymtab_clearAlias (sRef p_s)
358 /*@modifies internalState, p_s@*/ ;
360 extern void usymtab_addMustAlias (/*@exposed@*/ sRef p_s, /*@exposed@*/ sRef p_al)
361 /*@modifies internalState@*/ ;
363 extern void usymtab_addForceMustAlias (/*@exposed@*/ sRef p_s, /*@exposed@*/ sRef p_al)
364 /*@modifies internalState@*/ ;
366 extern /*@only@*/ cstring usymtab_unparseAliases (void)
367 /*@globals internalState@*/ ;
369 extern /*@exposed@*/ uentry
370 usymtab_supReturnFileEntry (/*@only@*/ uentry p_e)
371 /*@modifies internalState@*/ ;
373 extern bool usymtab_isAltDefinitelyNullDeep (sRef p_s)
374 /*@globals internalState@*/ ;
376 extern bool usymtab_existsReal (cstring p_k)
377 /*@globals internalState@*/ ;
379 extern /*@only@*/ sRefSet usymtab_allAliases (sRef p_s)
380 /*@globals internalState@*/ ;
382 extern void usymtab_exportLocal (void)
383 /*@modifies internalState@*/ ;
385 extern void usymtab_popCaseBranch (void)
386 /*@modifies internalState@*/ ;
390 /*@constant int invalidScope;@*/
391 # define invalidScope -1 /* invalid scope */
393 /*@constant int globScope;@*/
394 # define globScope 0 /* global variables */
396 /*@constant int fileScope;@*/
397 # define fileScope 1 /* file-level static variables */
399 /*@constant int paramsScope;@*/
400 # define paramsScope 2 /* function parameters */
402 /*@constant int functionScope;@*/
403 # define functionScope 3
405 extern /*@falsewhennull@*/ bool usymtab_isDefined (usymtab p_u) /*@*/ ;
407 /*@constant null usymtab usymtab_undefined; @*/
408 # define usymtab_undefined ((usymtab)NULL)
409 # define usymtab_isDefined(u) ((u) != usymtab_undefined)
411 extern void usymtab_checkDistinctName (uentry p_e, int p_scope)
412 /*@globals internalState@*/
413 /*@modifies *g_warningstream, p_e@*/ ;
415 extern /*@exposed@*/ sRef usymtab_lookupGlobalMarker (void) /*@globals internalState@*/ ;
417 extern int usymtab_getCurrentDepth (void) /*@globals internalState@*/ ;
420 # error "Multiple include"