2 ** Copyright (C) University of Virginia, Massachusetts Institue of Technology 1994-2003.
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 { int level; int index; } *refentry;
23 typedef /*@only@*/ refentry o_refentry;
24 typedef o_refentry *refTable;
34 /*@reldef@*/ /*@only@*/ o_uentry *entries;
35 /*@null@*/ /*@only@*/ cstringTable htable; /* for the global environment */
36 /*@null@*/ /*@only@*/ refTable reftable; /* for branched environments */
37 /*@only@*/ guardSet guards; /* guarded references (not null) */
39 /*@owned@*/ usymtab env;
45 ** (left as exercise to reader) ;)
48 extern void usymtab_printTypes (void)
49 /*@globals internalState@*/
50 /*@modifies g_warningstream@*/ ;
52 extern void usymtab_setMustBreak (void) /*@modifies internalState@*/ ;
54 extern bool usymtab_inGlobalScope (void) /*@globals internalState@*/ ;
55 extern bool usymtab_inFunctionScope (void) /*@globals internalState@*/ ;
56 extern bool usymtab_inFileScope (void) /*@globals internalState@*/ ;
57 extern void usymtab_checkFinalScope (bool p_isReturn)
58 /*@globals internalState@*/
59 /*@modifies *g_warningstream@*/ ;
61 extern void usymtab_allUsed (void)
62 /*@globals internalState@*/
63 /*@modifies *g_warningstream@*/ ;
65 extern void usymtab_allDefined (void)
66 /*@globals internalState@*/
67 /*@modifies *g_warningstream@*/ ;
69 extern void usymtab_prepareDump (void)
70 /*@modifies internalState@*/ ;
72 extern void usymtab_dump (FILE *p_fout)
73 /*@globals internalState@*/
74 /*@modifies *p_fout@*/ ;
77 extern void usymtab_load (FILE *p_f) /*@modifies p_f, internalState@*/ ;
79 extern /*@exposed@*/ /*@dependent@*/ uentry
80 usymtab_getRefQuiet (int p_level, usymId p_index)
81 /*@globals internalState@*/ ;
83 extern void usymtab_printLocal (void)
84 /*@globals internalState@*/
85 /*@modifies stdout@*/ ;
87 extern /*@exposed@*/ /*@dependent@*/ uentry usymtab_getParam (int p_paramno)
88 /*@globals internalState@*/;
89 extern void usymtab_free (void) /*@modifies internalState@*/ ;
90 extern bool usymtab_inDeepScope (void) /*@globals internalState@*/ ;
92 extern /*@exposed@*/ uentry usymtab_lookupExpose (cstring p_k)
93 /*@globals internalState@*/ ;
95 extern /*@observer@*/ uentry usymtab_lookup (cstring p_k)
96 /*@globals internalState@*/ ;
98 # define usymtab_lookup(s) (usymtab_lookupExpose (s))
100 extern /*@observer@*/ uentry usymtab_lookupGlob (cstring p_k)
101 /*@globals internalState@*/ ;
102 extern /*@exposed@*/ uentry usymtab_lookupExposeGlob (cstring p_k)
103 /*@globals internalState@*/ ;
104 extern /*@observer@*/ uentry usymtab_lookupUnionTag (cstring p_k)
105 /*@globals internalState@*/ ;
106 extern /*@observer@*/ uentry usymtab_lookupStructTag (cstring p_k)
107 /*@globals internalState@*/ ;
108 extern /*@observer@*/ uentry usymtab_lookupEither (cstring p_k)
109 /*@globals internalState@*/ ;
111 extern ctype usymtab_lookupType (cstring p_k)
112 /*@globals internalState@*/ ;
114 extern bool usymtab_isDefinitelyNull (sRef p_s)
115 /*@globals internalState@*/ ;
116 extern bool usymtab_isDefinitelyNullDeep (sRef p_s)
117 /*@globals internalState@*/ ;
119 extern usymId usymtab_supExposedTypeEntry (/*@only@*/ uentry p_e, bool p_dodef)
120 /*@modifies internalState, p_e@*/ ;
122 extern ctype usymtab_supTypeEntry (/*@only@*/ uentry p_e)
123 /*@modifies internalState, p_e@*/ ;
125 extern /*@exposed@*/ uentry usymtab_supReturnTypeEntry (/*@only@*/ uentry p_e)
126 /*@modifies internalState@*/ ;
128 extern /*@observer@*/ uentry usymtab_lookupSafe (cstring p_k)
129 /*@globals internalState@*/ ;
131 extern /*@observer@*/ uentry
132 usymtab_lookupSafeScope (cstring p_k, int p_lexlevel)
133 /*@globals internalState@*/ ;
135 extern /*@observer@*/ uentry usymtab_getGlobalEntry (usymId p_uid)
136 /*@globals internalState@*/ ;
138 extern bool usymtab_exists (cstring p_k)
139 /*@globals internalState@*/ ;
141 extern bool usymtab_existsVar (cstring p_k)
142 /*@globals internalState@*/ ;
144 extern bool usymtab_existsGlob (cstring p_k)
145 /*@globals internalState@*/ ;
147 extern bool usymtab_existsType (cstring p_k)
148 /*@globals internalState@*/ ;
150 extern bool usymtab_existsEither (cstring p_k)
151 /*@globals internalState@*/ ;
153 extern bool usymtab_existsTypeEither (cstring p_k)
154 /*@globals internalState@*/ ;
156 extern usymId usymtab_getId (cstring p_k) /*@globals internalState@*/ ;
157 extern typeId usymtab_getTypeId (cstring p_k) /*@globals internalState@*/ ;
159 extern void usymtab_supEntry (/*@only@*/ uentry p_e)
160 /*@modifies internalState, p_e@*/ ;
162 extern void usymtab_replaceEntry (/*@only@*/ uentry p_s)
163 /*@modifies internalState, p_s@*/ ;
165 extern void usymtab_supEntrySref (/*@only@*/ uentry p_e)
166 /*@modifies internalState, p_e@*/ ;
168 extern void usymtab_supGlobalEntry (/*@only@*/ uentry p_e)
169 /*@modifies internalState@*/ ;
171 extern void usymtab_addGlobalEntry (/*@only@*/ uentry p_e)
172 /*@modifies internalState, p_e@*/ ;
174 extern /*@exposed@*/ uentry
175 usymtab_supEntryReturn (/*@only@*/ uentry p_e)
176 /*@modifies internalState, p_e@*/ ;
178 extern usymId usymtab_addEntry (/*@only@*/ uentry p_e)
179 /*@modifies internalState, p_e@*/ ;
181 extern ctype usymtab_lookupAbstractType (cstring p_k)
182 /*@globals internalState@*/ /*@modifies nothing@*/ ;
184 extern bool usymtab_matchForwardStruct (typeId p_u1, typeId p_u2)
185 /*@globals internalState@*/ ;
187 extern bool usymtab_existsEnumTag (cstring p_k)
188 /*@globals internalState@*/ ;
189 extern bool usymtab_existsUnionTag (cstring p_k)
190 /*@globals internalState@*/ ;
191 extern bool usymtab_existsStructTag (cstring p_k)
192 /*@globals internalState@*/ ;
194 /*@iter usymtab_entries (sef usymtab u, yield exposed uentry el); @*/
195 # define usymtab_entries(x, m_i) \
197 if (usymtab_isDefined (x)) \
198 for (m_ind = 0; m_ind < (x)->nentries; m_ind++) \
199 { uentry m_i = (x)->entries[m_ind];
201 # define end_usymtab_entries }}
203 extern /*@unused@*/ void usymtab_displayAllUses (void)
204 /*@globals internalState@*/
205 /*@modifies *g_warningstream@*/ ;
207 extern /*@unused@*/ void usymtab_printOut (void)
208 /*@globals internalState@*/
209 /*@modifies *g_warningstream@*/ ;
211 extern /*@unused@*/ void usymtab_printAll (void)
212 /*@globals internalState@*/
213 /*@modifies *g_warningstream@*/ ;
215 extern void usymtab_enterScope (void)
216 /*@modifies internalState;@*/ ;
217 extern void usymtab_enterFunctionScope (uentry p_fcn)
218 /*@modifies internalState;@*/ ;
219 extern void usymtab_quietExitScope (fileloc p_loc)
220 /*@modifies internalState;@*/ ;
221 extern void usymtab_exitScope (exprNode p_expr) /*@modifies internalState@*/ ;
222 extern void usymtab_addGuards (guardSet p_guards) /*@modifies internalState@*/ ;
223 extern void usymtab_setExitCode (exitkind p_ex) /*@modifies internalState@*/ ;
224 extern void usymtab_exitFile (void) /*@modifies internalState@*/ ;
225 extern void usymtab_enterFile (void) /*@modifies internalState@*/ ;
227 extern /*@observer@*/ uentry usymtab_lookupEnumTag (cstring p_k)
228 /*@globals internalState@*/ ;
230 extern usymId usymtab_convertId (usymId p_uid) /*@globals internalState@*/ ;
231 extern typeId usymtab_convertTypeId (typeId p_uid) /*@globals internalState@*/ ;
232 extern void usymtab_initMod (void) /*@modifies internalState@*/ ;
233 extern void usymtab_destroyMod (void) /*@modifies internalState@*/ ;
234 extern void usymtab_initBool (void) /*@modifies internalState@*/ ;
235 extern void usymtab_initGlobalMarker (void) /*@modifies internalState@*/ ;
237 extern void usymtab_exportHeader (void)
238 /*@modifies internalState@*/ ;
240 extern ctype usymtab_structFieldsType (uentryList p_f)
241 /*@globals internalState@*/ ;
243 extern ctype usymtab_unionFieldsType (uentryList p_f)
244 /*@globals internalState@*/ ;
246 extern ctype usymtab_enumEnumNameListType (enumNameList p_f)
247 /*@globals internalState@*/ ;
249 extern /*@exposed@*/ uentry usymtab_getTypeEntrySafe (typeId p_uid)
250 /*@globals internalState@*/ ;
252 extern void usymtab_popOrBranch (exprNode p_pred, exprNode p_expr)
253 /*@modifies internalState@*/ ;
254 extern void usymtab_popAndBranch (exprNode p_pred, exprNode p_expr)
255 /*@modifies internalState@*/ ;
257 extern void usymtab_trueBranch (/*@only@*/ guardSet p_guards)
258 /*@modifies internalState@*/ ;
259 extern void usymtab_altBranch (/*@only@*/ guardSet p_guards)
260 /*@modifies internalState@*/ ;
262 extern void usymtab_popTrueBranch (exprNode p_pred, exprNode p_expr, clause p_cl)
263 /*@modifies internalState@*/ ;
266 usymtab_popTrueExecBranch (exprNode p_pred, exprNode p_expr, clause p_cl)
267 /*@modifies internalState@*/ ;
270 usymtab_popBranches (exprNode p_pred, exprNode p_tbranch, exprNode p_fbranch,
271 bool p_isOpt, clause p_cl)
272 /*@modifies internalState@*/ ;
274 extern void usymtab_unguard (sRef p_s) /*@modifies internalState@*/ ;
275 extern bool usymtab_isGuarded (sRef p_s) /*@globals internalState@*/ ;
276 extern void usymtab_printGuards (void) /*@globals internalState@*/ /*@modifies *g_warningstream@*/ ;
277 extern void usymtab_quietPlainExitScope (void) /*@modifies internalState@*/ ;
278 extern void usymtab_printComplete (void) /*@globals internalState@*/ /*@modifies *stdout@*/ ;
280 extern bool usymtab_existsGlobEither (cstring p_k) /*@globals internalState@*/ ;
282 extern bool usymtab_isBoolType (typeId p_uid) /*@globals internalState@*/ ;
283 extern /*@only@*/ cstring usymtab_getTypeEntryName (typeId p_uid)
284 /*@globals internalState@*/ ;
285 extern /*@exposed@*/ uentry usymtab_getTypeEntry (typeId p_uid)
286 /*@globals internalState@*/ ;
289 usymtab_supAbstractTypeEntry (/*@only@*/ uentry p_e, bool p_dodef)
290 /*@modifies internalState, p_e@*/ ;
291 extern ctype usymtab_supForwardTypeEntry (/*@only@*/ uentry p_e)
292 /*@modifies internalState, p_e@*/ ;
294 extern /*@exposed@*/ uentry
295 usymtab_supGlobalEntryReturn (/*@only@*/ uentry p_e)
296 /*@modifies internalState, p_e@*/ ;
298 extern /*@exposed@*/ uentry
299 usymtab_supEntrySrefReturn (/*@only@*/ uentry p_e)
300 /*@modifies internalState, p_e@*/ ;
302 extern usymId usymtab_directParamNo (uentry p_ue)
303 /*@globals internalState@*/ ;
305 extern bool usymtab_newCase (exprNode p_pred, exprNode p_last)
306 /*@modifies internalState@*/ ;
308 extern void usymtab_switchBranch (exprNode p_s)
309 /*@modifies internalState@*/ ;
311 extern /*@only@*/ cstring usymtab_unparseStack (void)
312 /*@globals internalState@*/ ;
313 extern void usymtab_exitSwitch (exprNode p_sw, bool p_allpaths)
314 /*@modifies internalState@*/ ;
316 extern /*@observer@*/ uentry usymtab_lookupGlobSafe (cstring p_k)
317 /*@globals internalState@*/ ;
319 extern /*@only@*/ sRefSet usymtab_aliasedBy (sRef p_s)
320 /*@globals internalState@*/ ;
322 extern /*@only@*/ sRefSet usymtab_canAlias (sRef p_s)
323 /*@globals internalState@*/ ;
325 extern void usymtab_clearAlias (sRef p_s)
326 /*@modifies internalState, p_s@*/ ;
328 extern void usymtab_addMustAlias (/*@exposed@*/ sRef p_s, /*@exposed@*/ sRef p_al)
329 /*@modifies internalState@*/ ;
331 extern void usymtab_addForceMustAlias (/*@exposed@*/ sRef p_s, /*@exposed@*/ sRef p_al)
332 /*@modifies internalState@*/ ;
334 extern /*@only@*/ cstring usymtab_unparseAliases (void)
335 /*@globals internalState@*/ ;
337 extern /*@exposed@*/ uentry
338 usymtab_supReturnFileEntry (/*@only@*/ uentry p_e)
339 /*@modifies internalState@*/ ;
341 extern bool usymtab_isAltDefinitelyNullDeep (sRef p_s)
342 /*@globals internalState@*/ ;
344 extern bool usymtab_existsReal (cstring p_k)
345 /*@globals internalState@*/ ;
347 extern /*@only@*/ sRefSet usymtab_allAliases (sRef p_s)
348 /*@globals internalState@*/ ;
350 extern void usymtab_exportLocal (void)
351 /*@modifies internalState@*/ ;
353 extern void usymtab_popCaseBranch (void)
354 /*@modifies internalState@*/ ;
358 /*@constant int globScope;@*/
359 # define globScope 0 /* global variables */
361 /*@constant int fileScope;@*/
362 # define fileScope 1 /* file-level static variables */
364 /*@constant int paramsScope;@*/
365 # define paramsScope 2 /* function parameters */
367 /*@constant int functionScope;@*/
368 # define functionScope 3
370 extern /*@falsewhennull@*/ bool usymtab_isDefined (usymtab p_u) /*@*/ ;
372 /*@constant null usymtab usymtab_undefined; @*/
373 # define usymtab_undefined ((usymtab)NULL)
374 # define usymtab_isDefined(u) ((u) != usymtab_undefined)
376 extern void usymtab_checkDistinctName (uentry p_e, int p_scope)
377 /*@globals internalState@*/
378 /*@modifies *g_warningstream, p_e@*/ ;
380 extern /*@exposed@*/ sRef usymtab_lookupGlobalMarker (void) /*@globals internalState@*/ ;
381 extern void usymtab_addReallyForceMustAlias (/*@exposed@*/ sRef p_s, /*@exposed@*/ sRef p_al) /*@modifies internalState@*/ ;
382 extern int usymtab_getCurrentDepth (void) /*@globals internalState@*/ ;
385 extern void usymtab_checkAllValid (void) /*@modifies g_errorstream@*/ ;
389 # error "Multiple include"