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1 | ------------------------------------------------------------------------------ |
2 | -- -- | |
3 | -- GNAT COMPILER COMPONENTS -- | |
4 | -- -- | |
5 | -- S E M _ P R A G -- | |
6 | -- -- | |
7 | -- B o d y -- | |
996ae0b0 | 8 | -- -- |
e8374e7a | 9 | -- Copyright (C) 1992-2011, Free Software Foundation, Inc. -- |
996ae0b0 RK |
10 | -- -- |
11 | -- GNAT is free software; you can redistribute it and/or modify it under -- | |
12 | -- terms of the GNU General Public License as published by the Free Soft- -- | |
b5c84c3c | 13 | -- ware Foundation; either version 3, or (at your option) any later ver- -- |
996ae0b0 RK |
14 | -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
15 | -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- | |
16 | -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- | |
17 | -- for more details. You should have received a copy of the GNU General -- | |
b5c84c3c RD |
18 | -- Public License distributed with GNAT; see file COPYING3. If not, go to -- |
19 | -- http://www.gnu.org/licenses for a complete copy of the license. -- | |
996ae0b0 RK |
20 | -- -- |
21 | -- GNAT was originally developed by the GNAT team at New York University. -- | |
71ff80dc | 22 | -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
996ae0b0 RK |
23 | -- -- |
24 | ------------------------------------------------------------------------------ | |
25 | ||
26 | -- This unit contains the semantic processing for all pragmas, both language | |
27 | -- and implementation defined. For most pragmas, the parser only does the | |
28 | -- most basic job of checking the syntax, so Sem_Prag also contains the code | |
29 | -- to complete the syntax checks. Certain pragmas are handled partially or | |
30 | -- completely by the parser (see Par.Prag for further details). | |
31 | ||
e7fceebc | 32 | with Aspects; use Aspects; |
ba759acd AC |
33 | with Atree; use Atree; |
34 | with Casing; use Casing; | |
35 | with Checks; use Checks; | |
36 | with Csets; use Csets; | |
37 | with Debug; use Debug; | |
38 | with Einfo; use Einfo; | |
39 | with Elists; use Elists; | |
40 | with Errout; use Errout; | |
41 | with Exp_Dist; use Exp_Dist; | |
42 | with Exp_Util; use Exp_Util; | |
43 | with Freeze; use Freeze; | |
44 | with Lib; use Lib; | |
45 | with Lib.Writ; use Lib.Writ; | |
46 | with Lib.Xref; use Lib.Xref; | |
47 | with Namet.Sp; use Namet.Sp; | |
48 | with Nlists; use Nlists; | |
49 | with Nmake; use Nmake; | |
50 | with Opt; use Opt; | |
51 | with Output; use Output; | |
52 | with Par_SCO; use Par_SCO; | |
53 | with Restrict; use Restrict; | |
54 | with Rident; use Rident; | |
55 | with Rtsfind; use Rtsfind; | |
56 | with Sem; use Sem; | |
57 | with Sem_Aux; use Sem_Aux; | |
58 | with Sem_Ch3; use Sem_Ch3; | |
59 | with Sem_Ch6; use Sem_Ch6; | |
60 | with Sem_Ch8; use Sem_Ch8; | |
61 | with Sem_Ch12; use Sem_Ch12; | |
62 | with Sem_Ch13; use Sem_Ch13; | |
63 | with Sem_Disp; use Sem_Disp; | |
64 | with Sem_Dist; use Sem_Dist; | |
65 | with Sem_Elim; use Sem_Elim; | |
66 | with Sem_Eval; use Sem_Eval; | |
67 | with Sem_Intr; use Sem_Intr; | |
68 | with Sem_Mech; use Sem_Mech; | |
69 | with Sem_Res; use Sem_Res; | |
70 | with Sem_Type; use Sem_Type; | |
71 | with Sem_Util; use Sem_Util; | |
72 | with Sem_VFpt; use Sem_VFpt; | |
73 | with Sem_Warn; use Sem_Warn; | |
74 | with Stand; use Stand; | |
75 | with Sinfo; use Sinfo; | |
76 | with Sinfo.CN; use Sinfo.CN; | |
77 | with Sinput; use Sinput; | |
78 | with Snames; use Snames; | |
79 | with Stringt; use Stringt; | |
80 | with Stylesw; use Stylesw; | |
523456db | 81 | with Table; |
ba759acd AC |
82 | with Targparm; use Targparm; |
83 | with Tbuild; use Tbuild; | |
996ae0b0 | 84 | with Ttypes; |
ba759acd AC |
85 | with Uintp; use Uintp; |
86 | with Uname; use Uname; | |
87 | with Urealp; use Urealp; | |
88 | with Validsw; use Validsw; | |
89 | with Warnsw; use Warnsw; | |
996ae0b0 RK |
90 | |
91 | package body Sem_Prag is | |
92 | ||
93 | ---------------------------------------------- | |
94 | -- Common Handling of Import-Export Pragmas -- | |
95 | ---------------------------------------------- | |
96 | ||
beacce02 AC |
97 | -- In the following section, a number of Import_xxx and Export_xxx pragmas |
98 | -- are defined by GNAT. These are compatible with the DEC pragmas of the | |
99 | -- same name, and all have the following common form and processing: | |
996ae0b0 RK |
100 | |
101 | -- pragma Export_xxx | |
470cd9e9 | 102 | -- [Internal =>] LOCAL_NAME |
996ae0b0 RK |
103 | -- [, [External =>] EXTERNAL_SYMBOL] |
104 | -- [, other optional parameters ]); | |
105 | ||
106 | -- pragma Import_xxx | |
470cd9e9 | 107 | -- [Internal =>] LOCAL_NAME |
996ae0b0 RK |
108 | -- [, [External =>] EXTERNAL_SYMBOL] |
109 | -- [, other optional parameters ]); | |
110 | ||
111 | -- EXTERNAL_SYMBOL ::= | |
112 | -- IDENTIFIER | |
113 | -- | static_string_EXPRESSION | |
114 | ||
115 | -- The internal LOCAL_NAME designates the entity that is imported or | |
116 | -- exported, and must refer to an entity in the current declarative | |
117 | -- part (as required by the rules for LOCAL_NAME). | |
118 | ||
b3b9865d AC |
119 | -- The external linker name is designated by the External parameter if |
120 | -- given, or the Internal parameter if not (if there is no External | |
996ae0b0 RK |
121 | -- parameter, the External parameter is a copy of the Internal name). |
122 | ||
b3b9865d AC |
123 | -- If the External parameter is given as a string, then this string is |
124 | -- treated as an external name (exactly as though it had been given as an | |
125 | -- External_Name parameter for a normal Import pragma). | |
996ae0b0 RK |
126 | |
127 | -- If the External parameter is given as an identifier (or there is no | |
128 | -- External parameter, so that the Internal identifier is used), then | |
129 | -- the external name is the characters of the identifier, translated | |
130 | -- to all upper case letters for OpenVMS versions of GNAT, and to all | |
131 | -- lower case letters for all other versions | |
132 | ||
133 | -- Note: the external name specified or implied by any of these special | |
134 | -- Import_xxx or Export_xxx pragmas override an external or link name | |
135 | -- specified in a previous Import or Export pragma. | |
136 | ||
b3b9865d AC |
137 | -- Note: these and all other DEC-compatible GNAT pragmas allow full use of |
138 | -- named notation, following the standard rules for subprogram calls, i.e. | |
139 | -- parameters can be given in any order if named notation is used, and | |
140 | -- positional and named notation can be mixed, subject to the rule that all | |
141 | -- positional parameters must appear first. | |
996ae0b0 | 142 | |
b3b9865d AC |
143 | -- Note: All these pragmas are implemented exactly following the DEC design |
144 | -- and implementation and are intended to be fully compatible with the use | |
145 | -- of these pragmas in the DEC Ada compiler. | |
996ae0b0 | 146 | |
523456db AC |
147 | -------------------------------------------- |
148 | -- Checking for Duplicated External Names -- | |
149 | -------------------------------------------- | |
150 | ||
151 | -- It is suspicious if two separate Export pragmas use the same external | |
152 | -- name. The following table is used to diagnose this situation so that | |
153 | -- an appropriate warning can be issued. | |
154 | ||
b3b9865d AC |
155 | -- The Node_Id stored is for the N_String_Literal node created to hold |
156 | -- the value of the external name. The Sloc of this node is used to | |
157 | -- cross-reference the location of the duplication. | |
523456db AC |
158 | |
159 | package Externals is new Table.Table ( | |
160 | Table_Component_Type => Node_Id, | |
161 | Table_Index_Type => Int, | |
162 | Table_Low_Bound => 0, | |
163 | Table_Initial => 100, | |
164 | Table_Increment => 100, | |
165 | Table_Name => "Name_Externals"); | |
166 | ||
996ae0b0 RK |
167 | ------------------------------------- |
168 | -- Local Subprograms and Variables -- | |
169 | ------------------------------------- | |
170 | ||
171 | function Adjust_External_Name_Case (N : Node_Id) return Node_Id; | |
172 | -- This routine is used for possible casing adjustment of an explicit | |
b3b9865d AC |
173 | -- external name supplied as a string literal (the node N), according to |
174 | -- the casing requirement of Opt.External_Name_Casing. If this is set to | |
175 | -- As_Is, then the string literal is returned unchanged, but if it is set | |
176 | -- to Uppercase or Lowercase, then a new string literal with appropriate | |
177 | -- casing is constructed. | |
996ae0b0 | 178 | |
996ae0b0 | 179 | function Get_Base_Subprogram (Def_Id : Entity_Id) return Entity_Id; |
b3b9865d AC |
180 | -- If Def_Id refers to a renamed subprogram, then the base subprogram (the |
181 | -- original one, following the renaming chain) is returned. Otherwise the | |
182 | -- entity is returned unchanged. Should be in Einfo??? | |
996ae0b0 | 183 | |
8c18a165 | 184 | procedure Preanalyze_TC_Args (N, Arg_Req, Arg_Ens : Node_Id); |
dac3bede YM |
185 | -- Preanalyze the boolean expressions in the Requires and Ensures arguments |
186 | -- of a Test_Case pragma if present (possibly Empty). We treat these as | |
187 | -- spec expressions (i.e. similar to a default expression). | |
188 | ||
2fa9443e ES |
189 | procedure rv; |
190 | -- This is a dummy function called by the processing for pragma Reviewable. | |
191 | -- It is there for assisting front end debugging. By placing a Reviewable | |
192 | -- pragma in the source program, a breakpoint on rv catches this place in | |
193 | -- the source, allowing convenient stepping to the point of interest. | |
194 | ||
996ae0b0 | 195 | procedure Set_Unit_Name (N : Node_Id; With_Item : Node_Id); |
b3b9865d AC |
196 | -- Place semantic information on the argument of an Elaborate/Elaborate_All |
197 | -- pragma. Entity name for unit and its parents is taken from item in | |
198 | -- previous with_clause that mentions the unit. | |
996ae0b0 | 199 | |
996ae0b0 RK |
200 | ------------------------------- |
201 | -- Adjust_External_Name_Case -- | |
202 | ------------------------------- | |
203 | ||
204 | function Adjust_External_Name_Case (N : Node_Id) return Node_Id is | |
205 | CC : Char_Code; | |
206 | ||
207 | begin | |
208 | -- Adjust case of literal if required | |
209 | ||
210 | if Opt.External_Name_Exp_Casing = As_Is then | |
211 | return N; | |
212 | ||
213 | else | |
214 | -- Copy existing string | |
215 | ||
216 | Start_String; | |
217 | ||
218 | -- Set proper casing | |
219 | ||
220 | for J in 1 .. String_Length (Strval (N)) loop | |
221 | CC := Get_String_Char (Strval (N), J); | |
222 | ||
223 | if Opt.External_Name_Exp_Casing = Uppercase | |
224 | and then CC >= Get_Char_Code ('a') | |
225 | and then CC <= Get_Char_Code ('z') | |
226 | then | |
227 | Store_String_Char (CC - 32); | |
228 | ||
229 | elsif Opt.External_Name_Exp_Casing = Lowercase | |
230 | and then CC >= Get_Char_Code ('A') | |
231 | and then CC <= Get_Char_Code ('Z') | |
232 | then | |
233 | Store_String_Char (CC + 32); | |
234 | ||
235 | else | |
236 | Store_String_Char (CC); | |
237 | end if; | |
238 | end loop; | |
239 | ||
240 | return | |
241 | Make_String_Literal (Sloc (N), | |
242 | Strval => End_String); | |
243 | end if; | |
244 | end Adjust_External_Name_Case; | |
245 | ||
21d27997 RD |
246 | ------------------------------ |
247 | -- Analyze_PPC_In_Decl_Part -- | |
248 | ------------------------------ | |
249 | ||
250 | procedure Analyze_PPC_In_Decl_Part (N : Node_Id; S : Entity_Id) is | |
1fb00064 | 251 | Arg1 : constant Node_Id := First (Pragma_Argument_Associations (N)); |
21d27997 RD |
252 | |
253 | begin | |
b3b9865d AC |
254 | -- Install formals and push subprogram spec onto scope stack so that we |
255 | -- can see the formals from the pragma. | |
21d27997 RD |
256 | |
257 | Install_Formals (S); | |
258 | Push_Scope (S); | |
259 | ||
b3b9865d AC |
260 | -- Preanalyze the boolean expression, we treat this as a spec expression |
261 | -- (i.e. similar to a default expression). | |
21d27997 | 262 | |
8c18a165 AC |
263 | Preanalyze_Spec_Expression (Get_Pragma_Arg (Arg1), Standard_Boolean); |
264 | ||
265 | -- In ASIS mode, for a pragma generated from a source aspect, also | |
266 | -- analyze the original aspect expression. | |
267 | ||
268 | if ASIS_Mode | |
269 | and then Present (Corresponding_Aspect (N)) | |
270 | then | |
271 | Preanalyze_Spec_Expression | |
272 | (Expression (Corresponding_Aspect (N)), Standard_Boolean); | |
273 | end if; | |
21d27997 | 274 | |
bd603506 RD |
275 | -- For a class-wide condition, a reference to a controlling formal must |
276 | -- be interpreted as having the class-wide type (or an access to such) | |
277 | -- so that the inherited condition can be properly applied to any | |
278 | -- overriding operation (see ARM12 6.6.1 (7)). | |
279 | ||
24a120ac AC |
280 | if Class_Present (N) then |
281 | declare | |
282 | T : constant Entity_Id := Find_Dispatching_Type (S); | |
283 | ||
284 | ACW : Entity_Id := Empty; | |
285 | -- Access to T'class, created if there is a controlling formal | |
286 | -- that is an access parameter. | |
287 | ||
288 | function Get_ACW return Entity_Id; | |
289 | -- If the expression has a reference to an controlling access | |
290 | -- parameter, create an access to T'class for the necessary | |
291 | -- conversions if one does not exist. | |
292 | ||
293 | function Process (N : Node_Id) return Traverse_Result; | |
294 | -- ARM 6.1.1: Within the expression for a Pre'Class or Post'Class | |
295 | -- aspect for a primitive subprogram of a tagged type T, a name | |
296 | -- that denotes a formal parameter of type T is interpreted as | |
297 | -- having type T'Class. Similarly, a name that denotes a formal | |
298 | -- accessparameter of type access-to-T is interpreted as having | |
299 | -- type access-to-T'Class. This ensures the expression is well- | |
300 | -- defined for a primitive subprogram of a type descended from T. | |
301 | ||
302 | ------------- | |
303 | -- Get_ACW -- | |
304 | ------------- | |
305 | ||
306 | function Get_ACW return Entity_Id is | |
307 | Loc : constant Source_Ptr := Sloc (N); | |
308 | Decl : Node_Id; | |
309 | ||
310 | begin | |
311 | if No (ACW) then | |
312 | Decl := Make_Full_Type_Declaration (Loc, | |
313 | Defining_Identifier => Make_Temporary (Loc, 'T'), | |
314 | Type_Definition => | |
315 | Make_Access_To_Object_Definition (Loc, | |
316 | Subtype_Indication => | |
317 | New_Occurrence_Of (Class_Wide_Type (T), Loc), | |
318 | All_Present => True)); | |
319 | ||
320 | Insert_Before (Unit_Declaration_Node (S), Decl); | |
321 | Analyze (Decl); | |
322 | ACW := Defining_Identifier (Decl); | |
323 | Freeze_Before (Unit_Declaration_Node (S), ACW); | |
324 | end if; | |
325 | ||
326 | return ACW; | |
327 | end Get_ACW; | |
328 | ||
329 | ------------- | |
330 | -- Process -- | |
331 | ------------- | |
332 | ||
333 | function Process (N : Node_Id) return Traverse_Result is | |
334 | Loc : constant Source_Ptr := Sloc (N); | |
335 | Typ : Entity_Id; | |
336 | ||
337 | begin | |
338 | if Is_Entity_Name (N) | |
339 | and then Is_Formal (Entity (N)) | |
340 | and then Nkind (Parent (N)) /= N_Type_Conversion | |
341 | then | |
342 | if Etype (Entity (N)) = T then | |
343 | Typ := Class_Wide_Type (T); | |
344 | ||
345 | elsif Is_Access_Type (Etype (Entity (N))) | |
346 | and then Designated_Type (Etype (Entity (N))) = T | |
347 | then | |
348 | Typ := Get_ACW; | |
349 | else | |
350 | Typ := Empty; | |
351 | end if; | |
352 | ||
353 | if Present (Typ) then | |
354 | Rewrite (N, | |
355 | Make_Type_Conversion (Loc, | |
356 | Subtype_Mark => | |
357 | New_Occurrence_Of (Typ, Loc), | |
358 | Expression => New_Occurrence_Of (Entity (N), Loc))); | |
359 | Set_Etype (N, Typ); | |
360 | end if; | |
361 | end if; | |
362 | ||
363 | return OK; | |
364 | end Process; | |
365 | ||
366 | procedure Replace_Type is new Traverse_Proc (Process); | |
367 | ||
368 | begin | |
369 | Replace_Type (Get_Pragma_Arg (Arg1)); | |
370 | end; | |
371 | end if; | |
372 | ||
b3b9865d AC |
373 | -- Remove the subprogram from the scope stack now that the pre-analysis |
374 | -- of the precondition/postcondition is done. | |
21d27997 RD |
375 | |
376 | End_Scope; | |
377 | end Analyze_PPC_In_Decl_Part; | |
378 | ||
996ae0b0 RK |
379 | -------------------- |
380 | -- Analyze_Pragma -- | |
381 | -------------------- | |
382 | ||
383 | procedure Analyze_Pragma (N : Node_Id) is | |
384 | Loc : constant Source_Ptr := Sloc (N); | |
385 | Prag_Id : Pragma_Id; | |
386 | ||
ba759acd AC |
387 | Pname : Name_Id; |
388 | -- Name of the source pragma, or name of the corresponding aspect for | |
389 | -- pragmas which originate in a source aspect. In the latter case, the | |
390 | -- name may be different from the pragma name. | |
391 | ||
996ae0b0 | 392 | Pragma_Exit : exception; |
b3b9865d AC |
393 | -- This exception is used to exit pragma processing completely. It is |
394 | -- used when an error is detected, and no further processing is | |
395 | -- required. It is also used if an earlier error has left the tree in | |
396 | -- a state where the pragma should not be processed. | |
996ae0b0 RK |
397 | |
398 | Arg_Count : Nat; | |
399 | -- Number of pragma argument associations | |
400 | ||
401 | Arg1 : Node_Id; | |
402 | Arg2 : Node_Id; | |
403 | Arg3 : Node_Id; | |
404 | Arg4 : Node_Id; | |
b3b9865d AC |
405 | -- First four pragma arguments (pragma argument association nodes, or |
406 | -- Empty if the corresponding argument does not exist). | |
996ae0b0 | 407 | |
59e5fbe0 RD |
408 | type Name_List is array (Natural range <>) of Name_Id; |
409 | type Args_List is array (Natural range <>) of Node_Id; | |
410 | -- Types used for arguments to Check_Arg_Order and Gather_Associations | |
411 | ||
2fa9443e ES |
412 | procedure Ada_2005_Pragma; |
413 | -- Called for pragmas defined in Ada 2005, that are not in Ada 95. In | |
414 | -- Ada 95 mode, these are implementation defined pragmas, so should be | |
bfae1846 AC |
415 | -- caught by the No_Implementation_Pragmas restriction. |
416 | ||
417 | procedure Ada_2012_Pragma; | |
418 | -- Called for pragmas defined in Ada 2012, that are not in Ada 95 or 05. | |
419 | -- In Ada 95 or 05 mode, these are implementation defined pragmas, so | |
420 | -- should be caught by the No_Implementation_Pragmas restriction. | |
2fa9443e | 421 | |
996ae0b0 RK |
422 | procedure Check_Ada_83_Warning; |
423 | -- Issues a warning message for the current pragma if operating in Ada | |
424 | -- 83 mode (used for language pragmas that are not a standard part of | |
425 | -- Ada 83). This procedure does not raise Error_Pragma. Also notes use | |
426 | -- of 95 pragma. | |
427 | ||
428 | procedure Check_Arg_Count (Required : Nat); | |
b3b9865d AC |
429 | -- Check argument count for pragma is equal to given parameter. If not, |
430 | -- then issue an error message and raise Pragma_Exit. | |
996ae0b0 | 431 | |
b3b9865d AC |
432 | -- Note: all routines whose name is Check_Arg_Is_xxx take an argument |
433 | -- Arg which can either be a pragma argument association, in which case | |
434 | -- the check is applied to the expression of the association or an | |
435 | -- expression directly. | |
996ae0b0 | 436 | |
cc335f43 AC |
437 | procedure Check_Arg_Is_External_Name (Arg : Node_Id); |
438 | -- Check that an argument has the right form for an EXTERNAL_NAME | |
b3b9865d AC |
439 | -- parameter of an extended import/export pragma. The rule is that the |
440 | -- name must be an identifier or string literal (in Ada 83 mode) or a | |
441 | -- static string expression (in Ada 95 mode). | |
cc335f43 | 442 | |
996ae0b0 RK |
443 | procedure Check_Arg_Is_Identifier (Arg : Node_Id); |
444 | -- Check the specified argument Arg to make sure that it is an | |
445 | -- identifier. If not give error and raise Pragma_Exit. | |
446 | ||
447 | procedure Check_Arg_Is_Integer_Literal (Arg : Node_Id); | |
b3b9865d AC |
448 | -- Check the specified argument Arg to make sure that it is an integer |
449 | -- literal. If not give error and raise Pragma_Exit. | |
996ae0b0 RK |
450 | |
451 | procedure Check_Arg_Is_Library_Level_Local_Name (Arg : Node_Id); | |
b3b9865d AC |
452 | -- Check the specified argument Arg to make sure that it has the proper |
453 | -- syntactic form for a local name and meets the semantic requirements | |
454 | -- for a local name. The local name is analyzed as part of the | |
455 | -- processing for this call. In addition, the local name is required | |
456 | -- to represent an entity at the library level. | |
996ae0b0 RK |
457 | |
458 | procedure Check_Arg_Is_Local_Name (Arg : Node_Id); | |
b3b9865d AC |
459 | -- Check the specified argument Arg to make sure that it has the proper |
460 | -- syntactic form for a local name and meets the semantic requirements | |
461 | -- for a local name. The local name is analyzed as part of the | |
462 | -- processing for this call. | |
996ae0b0 RK |
463 | |
464 | procedure Check_Arg_Is_Locking_Policy (Arg : Node_Id); | |
465 | -- Check the specified argument Arg to make sure that it is a valid | |
466 | -- locking policy name. If not give error and raise Pragma_Exit. | |
467 | ||
9b3956dd RD |
468 | procedure Check_Arg_Is_One_Of |
469 | (Arg : Node_Id; | |
470 | N1, N2 : Name_Id); | |
471 | procedure Check_Arg_Is_One_Of | |
472 | (Arg : Node_Id; | |
473 | N1, N2, N3 : Name_Id); | |
474 | procedure Check_Arg_Is_One_Of | |
475 | (Arg : Node_Id; | |
476 | N1, N2, N3, N4, N5 : Name_Id); | |
996ae0b0 | 477 | -- Check the specified argument Arg to make sure that it is an |
9b3956dd RD |
478 | -- identifier whose name matches either N1 or N2 (or N3, N4, N5 if |
479 | -- present). If not then give error and raise Pragma_Exit. | |
996ae0b0 RK |
480 | |
481 | procedure Check_Arg_Is_Queuing_Policy (Arg : Node_Id); | |
482 | -- Check the specified argument Arg to make sure that it is a valid | |
483 | -- queuing policy name. If not give error and raise Pragma_Exit. | |
484 | ||
485 | procedure Check_Arg_Is_Static_Expression | |
486 | (Arg : Node_Id; | |
d81b4c61 | 487 | Typ : Entity_Id := Empty); |
996ae0b0 RK |
488 | -- Check the specified argument Arg to make sure that it is a static |
489 | -- expression of the given type (i.e. it will be analyzed and resolved | |
490 | -- using this type, which can be any valid argument to Resolve, e.g. | |
d81b4c61 RD |
491 | -- Any_Integer is OK). If not, given error and raise Pragma_Exit. If |
492 | -- Typ is left Empty, then any static expression is allowed. | |
996ae0b0 | 493 | |
996ae0b0 | 494 | procedure Check_Arg_Is_Task_Dispatching_Policy (Arg : Node_Id); |
b3b9865d AC |
495 | -- Check the specified argument Arg to make sure that it is a valid task |
496 | -- dispatching policy name. If not give error and raise Pragma_Exit. | |
996ae0b0 | 497 | |
59e5fbe0 RD |
498 | procedure Check_Arg_Order (Names : Name_List); |
499 | -- Checks for an instance of two arguments with identifiers for the | |
500 | -- current pragma which are not in the sequence indicated by Names, | |
501 | -- and if so, generates a fatal message about bad order of arguments. | |
502 | ||
996ae0b0 RK |
503 | procedure Check_At_Least_N_Arguments (N : Nat); |
504 | -- Check there are at least N arguments present | |
505 | ||
506 | procedure Check_At_Most_N_Arguments (N : Nat); | |
507 | -- Check there are no more than N arguments present | |
508 | ||
72e9f2b9 AC |
509 | procedure Check_Component |
510 | (Comp : Node_Id; | |
511 | UU_Typ : Entity_Id; | |
512 | In_Variant_Part : Boolean := False); | |
513 | -- Examine an Unchecked_Union component for correct use of per-object | |
57193e09 | 514 | -- constrained subtypes, and for restrictions on finalizable components. |
72e9f2b9 AC |
515 | -- UU_Typ is the related Unchecked_Union type. Flag In_Variant_Part |
516 | -- should be set when Comp comes from a record variant. | |
5d09245e | 517 | |
af31bffb AC |
518 | procedure Check_Duplicate_Pragma (E : Entity_Id); |
519 | -- Check if a pragma of the same name as the current pragma is already | |
c159409f | 520 | -- chained as a rep pragma to the given entity. If so give a message |
0f1a6a0b | 521 | -- about the duplicate, and then raise Pragma_Exit so does not return. |
c159409f | 522 | -- Also checks for delayed aspect specification node in the chain. |
af31bffb | 523 | |
523456db | 524 | procedure Check_Duplicated_Export_Name (Nam : Node_Id); |
b3b9865d AC |
525 | -- Nam is an N_String_Literal node containing the external name set by |
526 | -- an Import or Export pragma (or extended Import or Export pragma). | |
527 | -- This procedure checks for possible duplications if this is the export | |
528 | -- case, and if found, issues an appropriate error message. | |
523456db | 529 | |
8c18a165 | 530 | procedure Check_Expr_Is_Static_Expression |
4c318253 | 531 | (Expr : Node_Id; |
8c18a165 | 532 | Typ : Entity_Id := Empty); |
4c318253 | 533 | -- Check the specified expression Expr to make sure that it is a static |
8c18a165 AC |
534 | -- expression of the given type (i.e. it will be analyzed and resolved |
535 | -- using this type, which can be any valid argument to Resolve, e.g. | |
536 | -- Any_Integer is OK). If not, given error and raise Pragma_Exit. If | |
537 | -- Typ is left Empty, then any static expression is allowed. | |
538 | ||
996ae0b0 | 539 | procedure Check_First_Subtype (Arg : Node_Id); |
b4ca2d2c AC |
540 | -- Checks that Arg, whose expression is an entity name, references a |
541 | -- first subtype. | |
996ae0b0 | 542 | |
dac3bede YM |
543 | procedure Check_Identifier (Arg : Node_Id; Id : Name_Id); |
544 | -- Checks that the given argument has an identifier, and if so, requires | |
545 | -- it to match the given identifier name. If there is no identifier, or | |
546 | -- a non-matching identifier, then an error message is given and | |
1bf773bb AC |
547 | -- Pragma_Exit is raised. |
548 | ||
549 | procedure Check_Identifier_Is_One_Of (Arg : Node_Id; N1, N2 : Name_Id); | |
550 | -- Checks that the given argument has an identifier, and if so, requires | |
551 | -- it to match one of the given identifier names. If there is no | |
552 | -- identifier, or a non-matching identifier, then an error message is | |
a54d0eb4 | 553 | -- given and Pragma_Exit is raised. |
dac3bede | 554 | |
996ae0b0 RK |
555 | procedure Check_In_Main_Program; |
556 | -- Common checks for pragmas that appear within a main program | |
8918fe18 | 557 | -- (Priority, Main_Storage, Time_Slice, Relative_Deadline, CPU). |
996ae0b0 RK |
558 | |
559 | procedure Check_Interrupt_Or_Attach_Handler; | |
b3b9865d AC |
560 | -- Common processing for first argument of pragma Interrupt_Handler or |
561 | -- pragma Attach_Handler. | |
996ae0b0 RK |
562 | |
563 | procedure Check_Is_In_Decl_Part_Or_Package_Spec; | |
564 | -- Check that pragma appears in a declarative part, or in a package | |
565 | -- specification, i.e. that it does not occur in a statement sequence | |
566 | -- in a body. | |
567 | ||
568 | procedure Check_No_Identifier (Arg : Node_Id); | |
569 | -- Checks that the given argument does not have an identifier. If | |
570 | -- an identifier is present, then an error message is issued, and | |
571 | -- Pragma_Exit is raised. | |
572 | ||
573 | procedure Check_No_Identifiers; | |
574 | -- Checks that none of the arguments to the pragma has an identifier. | |
575 | -- If any argument has an identifier, then an error message is issued, | |
576 | -- and Pragma_Exit is raised. | |
577 | ||
9eea4346 GB |
578 | procedure Check_No_Link_Name; |
579 | -- Checks that no link name is specified | |
580 | ||
996ae0b0 RK |
581 | procedure Check_Optional_Identifier (Arg : Node_Id; Id : Name_Id); |
582 | -- Checks if the given argument has an identifier, and if so, requires | |
583 | -- it to match the given identifier name. If there is a non-matching | |
1bf773bb | 584 | -- identifier, then an error message is given and Pragma_Exit is raised. |
996ae0b0 RK |
585 | |
586 | procedure Check_Optional_Identifier (Arg : Node_Id; Id : String); | |
587 | -- Checks if the given argument has an identifier, and if so, requires | |
588 | -- it to match the given identifier name. If there is a non-matching | |
1bf773bb | 589 | -- identifier, then an error message is given and Pragma_Exit is raised. |
996ae0b0 RK |
590 | -- In this version of the procedure, the identifier name is given as |
591 | -- a string with lower case letters. | |
592 | ||
21d27997 RD |
593 | procedure Check_Precondition_Postcondition (In_Body : out Boolean); |
594 | -- Called to process a precondition or postcondition pragma. There are | |
595 | -- three cases: | |
596 | -- | |
597 | -- The pragma appears after a subprogram spec | |
598 | -- | |
599 | -- If the corresponding check is not enabled, the pragma is analyzed | |
600 | -- but otherwise ignored and control returns with In_Body set False. | |
601 | -- | |
602 | -- If the check is enabled, then the first step is to analyze the | |
603 | -- pragma, but this is skipped if the subprogram spec appears within | |
604 | -- a package specification (because this is the case where we delay | |
605 | -- analysis till the end of the spec). Then (whether or not it was | |
606 | -- analyzed), the pragma is chained to the subprogram in question | |
607 | -- (using Spec_PPC_List and Next_Pragma) and control returns to the | |
608 | -- caller with In_Body set False. | |
609 | -- | |
610 | -- The pragma appears at the start of subprogram body declarations | |
611 | -- | |
612 | -- In this case an immediate return to the caller is made with | |
613 | -- In_Body set True, and the pragma is NOT analyzed. | |
614 | -- | |
615 | -- In all other cases, an error message for bad placement is given | |
616 | ||
996ae0b0 RK |
617 | procedure Check_Static_Constraint (Constr : Node_Id); |
618 | -- Constr is a constraint from an N_Subtype_Indication node from a | |
619 | -- component constraint in an Unchecked_Union type. This routine checks | |
620 | -- that the constraint is static as required by the restrictions for | |
621 | -- Unchecked_Union. | |
622 | ||
dac3bede YM |
623 | procedure Check_Test_Case; |
624 | -- Called to process a test-case pragma. The treatment is similar to the | |
5accd7b6 AC |
625 | -- one for pre- and postcondition in Check_Precondition_Postcondition, |
626 | -- except the placement rules for the test-case pragma are stricter. | |
627 | -- This pragma may only occur after a subprogram spec declared directly | |
628 | -- in a package spec unit. In this case, the pragma is chained to the | |
629 | -- subprogram in question (using Spec_TC_List and Next_Pragma) and | |
630 | -- analysis of the pragma is delayed till the end of the spec. In | |
631 | -- all other cases, an error message for bad placement is given. | |
dac3bede | 632 | |
996ae0b0 RK |
633 | procedure Check_Valid_Configuration_Pragma; |
634 | -- Legality checks for placement of a configuration pragma | |
635 | ||
636 | procedure Check_Valid_Library_Unit_Pragma; | |
637 | -- Legality checks for library unit pragmas. A special case arises for | |
638 | -- pragmas in generic instances that come from copies of the original | |
639 | -- library unit pragmas in the generic templates. In the case of other | |
640 | -- than library level instantiations these can appear in contexts which | |
641 | -- would normally be invalid (they only apply to the original template | |
642 | -- and to library level instantiations), and they are simply ignored, | |
643 | -- which is implemented by rewriting them as null statements. | |
644 | ||
72e9f2b9 AC |
645 | procedure Check_Variant (Variant : Node_Id; UU_Typ : Entity_Id); |
646 | -- Check an Unchecked_Union variant for lack of nested variants and | |
647 | -- presence of at least one component. UU_Typ is the related Unchecked_ | |
648 | -- Union type. | |
5d09245e | 649 | |
996ae0b0 RK |
650 | procedure Error_Pragma (Msg : String); |
651 | pragma No_Return (Error_Pragma); | |
470cd9e9 | 652 | -- Outputs error message for current pragma. The message contains a % |
996ae0b0 RK |
653 | -- that will be replaced with the pragma name, and the flag is placed |
654 | -- on the pragma itself. Pragma_Exit is then raised. | |
655 | ||
656 | procedure Error_Pragma_Arg (Msg : String; Arg : Node_Id); | |
657 | pragma No_Return (Error_Pragma_Arg); | |
658 | -- Outputs error message for current pragma. The message may contain | |
659 | -- a % that will be replaced with the pragma name. The parameter Arg | |
660 | -- may either be a pragma argument association, in which case the flag | |
661 | -- is placed on the expression of this association, or an expression, | |
662 | -- in which case the flag is placed directly on the expression. The | |
663 | -- message is placed using Error_Msg_N, so the message may also contain | |
664 | -- an & insertion character which will reference the given Arg value. | |
665 | -- After placing the message, Pragma_Exit is raised. | |
666 | ||
667 | procedure Error_Pragma_Arg (Msg1, Msg2 : String; Arg : Node_Id); | |
668 | pragma No_Return (Error_Pragma_Arg); | |
669 | -- Similar to above form of Error_Pragma_Arg except that two messages | |
670 | -- are provided, the second is a continuation comment starting with \. | |
671 | ||
672 | procedure Error_Pragma_Arg_Ident (Msg : String; Arg : Node_Id); | |
673 | pragma No_Return (Error_Pragma_Arg_Ident); | |
674 | -- Outputs error message for current pragma. The message may contain | |
675 | -- a % that will be replaced with the pragma name. The parameter Arg | |
676 | -- must be a pragma argument association with a non-empty identifier | |
677 | -- (i.e. its Chars field must be set), and the error message is placed | |
678 | -- on the identifier. The message is placed using Error_Msg_N so | |
679 | -- the message may also contain an & insertion character which will | |
680 | -- reference the identifier. After placing the message, Pragma_Exit | |
681 | -- is raised. | |
682 | ||
b039b10e ST |
683 | procedure Error_Pragma_Ref (Msg : String; Ref : Entity_Id); |
684 | pragma No_Return (Error_Pragma_Ref); | |
685 | -- Outputs error message for current pragma. The message may contain | |
686 | -- a % that will be replaced with the pragma name. The parameter Ref | |
687 | -- must be an entity whose name can be referenced by & and sloc by #. | |
688 | -- After placing the message, Pragma_Exit is raised. | |
689 | ||
996ae0b0 RK |
690 | function Find_Lib_Unit_Name return Entity_Id; |
691 | -- Used for a library unit pragma to find the entity to which the | |
692 | -- library unit pragma applies, returns the entity found. | |
693 | ||
694 | procedure Find_Program_Unit_Name (Id : Node_Id); | |
695 | -- If the pragma is a compilation unit pragma, the id must denote the | |
696 | -- compilation unit in the same compilation, and the pragma must appear | |
697 | -- in the list of preceding or trailing pragmas. If it is a program | |
698 | -- unit pragma that is not a compilation unit pragma, then the | |
699 | -- identifier must be visible. | |
700 | ||
d9e0a587 EB |
701 | function Find_Unique_Parameterless_Procedure |
702 | (Name : Entity_Id; | |
703 | Arg : Node_Id) return Entity_Id; | |
704 | -- Used for a procedure pragma to find the unique parameterless | |
705 | -- procedure identified by Name, returns it if it exists, otherwise | |
706 | -- errors out and uses Arg as the pragma argument for the message. | |
707 | ||
0f1a6a0b AC |
708 | procedure Fix_Error (Msg : in out String); |
709 | -- This is called prior to issuing an error message. Msg is a string | |
710 | -- which typically contains the substring pragma. If the current pragma | |
711 | -- comes from an aspect, each such "pragma" substring is replaced with | |
811ef5ba RD |
712 | -- the characters "aspect", and if Error_Msg_Name_1 is Name_Precondition |
713 | -- (resp Name_Postcondition) it is changed to Name_Pre (resp Name_Post). | |
0f1a6a0b | 714 | |
996ae0b0 RK |
715 | procedure Gather_Associations |
716 | (Names : Name_List; | |
717 | Args : out Args_List); | |
718 | -- This procedure is used to gather the arguments for a pragma that | |
719 | -- permits arbitrary ordering of parameters using the normal rules | |
720 | -- for named and positional parameters. The Names argument is a list | |
721 | -- of Name_Id values that corresponds to the allowed pragma argument | |
722 | -- association identifiers in order. The result returned in Args is | |
723 | -- a list of corresponding expressions that are the pragma arguments. | |
724 | -- Note that this is a list of expressions, not of pragma argument | |
725 | -- associations (Gather_Associations has completely checked all the | |
726 | -- optional identifiers when it returns). An entry in Args is Empty | |
727 | -- on return if the corresponding argument is not present. | |
728 | ||
996ae0b0 | 729 | procedure GNAT_Pragma; |
2fa9443e ES |
730 | -- Called for all GNAT defined pragmas to check the relevant restriction |
731 | -- (No_Implementation_Pragmas). | |
996ae0b0 RK |
732 | |
733 | function Is_Before_First_Decl | |
734 | (Pragma_Node : Node_Id; | |
a9f4e3d2 | 735 | Decls : List_Id) return Boolean; |
996ae0b0 RK |
736 | -- Return True if Pragma_Node is before the first declarative item in |
737 | -- Decls where Decls is the list of declarative items. | |
738 | ||
739 | function Is_Configuration_Pragma return Boolean; | |
f3d57416 | 740 | -- Determines if the placement of the current pragma is appropriate |
1b24ada5 | 741 | -- for a configuration pragma. |
ac9e9918 RD |
742 | |
743 | function Is_In_Context_Clause return Boolean; | |
744 | -- Returns True if pragma appears within the context clause of a unit, | |
745 | -- and False for any other placement (does not generate any messages). | |
746 | ||
747 | function Is_Static_String_Expression (Arg : Node_Id) return Boolean; | |
748 | -- Analyzes the argument, and determines if it is a static string | |
749 | -- expression, returns True if so, False if non-static or not String. | |
996ae0b0 RK |
750 | |
751 | procedure Pragma_Misplaced; | |
3023ce42 | 752 | pragma No_Return (Pragma_Misplaced); |
996ae0b0 RK |
753 | -- Issue fatal error message for misplaced pragma |
754 | ||
755 | procedure Process_Atomic_Shared_Volatile; | |
756 | -- Common processing for pragmas Atomic, Shared, Volatile. Note that | |
757 | -- Shared is an obsolete Ada 83 pragma, treated as being identical | |
758 | -- in effect to pragma Atomic. | |
759 | ||
874a0341 RD |
760 | procedure Process_Compile_Time_Warning_Or_Error; |
761 | -- Common processing for Compile_Time_Error and Compile_Time_Warning | |
762 | ||
9fe2f33e | 763 | procedure Process_Convention |
9cf032ef RD |
764 | (C : out Convention_Id; |
765 | Ent : out Entity_Id); | |
f3d57416 | 766 | -- Common processing for Convention, Interface, Import and Export. |
996ae0b0 RK |
767 | -- Checks first two arguments of pragma, and sets the appropriate |
768 | -- convention value in the specified entity or entities. On return | |
9fe2f33e | 769 | -- C is the convention, Ent is the referenced entity. |
996ae0b0 | 770 | |
12b4d338 AC |
771 | procedure Process_Disable_Enable_Atomic_Sync (Nam : Name_Id); |
772 | -- Common processing for Disable/Enable_Atomic_Synchronization. Nam is | |
773 | -- Name_Suppress for Disable and Name_Unsuppress for Enable. | |
774 | ||
996ae0b0 RK |
775 | procedure Process_Extended_Import_Export_Exception_Pragma |
776 | (Arg_Internal : Node_Id; | |
777 | Arg_External : Node_Id; | |
778 | Arg_Form : Node_Id; | |
779 | Arg_Code : Node_Id); | |
b3b9865d AC |
780 | -- Common processing for the pragmas Import/Export_Exception. The three |
781 | -- arguments correspond to the three named parameters of the pragma. An | |
782 | -- argument is empty if the corresponding parameter is not present in | |
783 | -- the pragma. | |
996ae0b0 RK |
784 | |
785 | procedure Process_Extended_Import_Export_Object_Pragma | |
786 | (Arg_Internal : Node_Id; | |
787 | Arg_External : Node_Id; | |
788 | Arg_Size : Node_Id); | |
b3b9865d AC |
789 | -- Common processing for the pragmas Import/Export_Object. The three |
790 | -- arguments correspond to the three named parameters of the pragmas. An | |
791 | -- argument is empty if the corresponding parameter is not present in | |
792 | -- the pragma. | |
996ae0b0 RK |
793 | |
794 | procedure Process_Extended_Import_Export_Internal_Arg | |
795 | (Arg_Internal : Node_Id := Empty); | |
796 | -- Common processing for all extended Import and Export pragmas. The | |
797 | -- argument is the pragma parameter for the Internal argument. If | |
798 | -- Arg_Internal is empty or inappropriate, an error message is posted. | |
799 | -- Otherwise, on normal return, the Entity_Field of Arg_Internal is | |
800 | -- set to identify the referenced entity. | |
801 | ||
802 | procedure Process_Extended_Import_Export_Subprogram_Pragma | |
803 | (Arg_Internal : Node_Id; | |
804 | Arg_External : Node_Id; | |
805 | Arg_Parameter_Types : Node_Id; | |
806 | Arg_Result_Type : Node_Id := Empty; | |
807 | Arg_Mechanism : Node_Id; | |
808 | Arg_Result_Mechanism : Node_Id := Empty; | |
809 | Arg_First_Optional_Parameter : Node_Id := Empty); | |
b3b9865d AC |
810 | -- Common processing for all extended Import and Export pragmas applying |
811 | -- to subprograms. The caller omits any arguments that do not apply to | |
812 | -- the pragma in question (for example, Arg_Result_Type can be non-Empty | |
813 | -- only in the Import_Function and Export_Function cases). The argument | |
814 | -- names correspond to the allowed pragma association identifiers. | |
996ae0b0 RK |
815 | |
816 | procedure Process_Generic_List; | |
817 | -- Common processing for Share_Generic and Inline_Generic | |
818 | ||
819 | procedure Process_Import_Or_Interface; | |
820 | -- Common processing for Import of Interface | |
821 | ||
15b682ca GB |
822 | procedure Process_Import_Predefined_Type; |
823 | -- Processing for completing a type with pragma Import. This is used | |
824 | -- to declare types that match predefined C types, especially for cases | |
825 | -- without corresponding Ada predefined type. | |
826 | ||
996ae0b0 RK |
827 | procedure Process_Inline (Active : Boolean); |
828 | -- Common processing for Inline and Inline_Always. The parameter | |
b3b9865d AC |
829 | -- indicates if the inline pragma is active, i.e. if it should actually |
830 | -- cause inlining to occur. | |
996ae0b0 RK |
831 | |
832 | procedure Process_Interface_Name | |
833 | (Subprogram_Def : Entity_Id; | |
834 | Ext_Arg : Node_Id; | |
835 | Link_Arg : Node_Id); | |
836 | -- Given the last two arguments of pragma Import, pragma Export, or | |
837 | -- pragma Interface_Name, performs validity checks and sets the | |
838 | -- Interface_Name field of the given subprogram entity to the | |
b3b9865d AC |
839 | -- appropriate external or link name, depending on the arguments given. |
840 | -- Ext_Arg is always present, but Link_Arg may be missing. Note that | |
841 | -- Ext_Arg may represent the Link_Name if Link_Arg is missing, and | |
842 | -- appropriate named notation is used for Ext_Arg. If neither Ext_Arg | |
843 | -- nor Link_Arg is present, the interface name is set to the default | |
844 | -- from the subprogram name. | |
996ae0b0 RK |
845 | |
846 | procedure Process_Interrupt_Or_Attach_Handler; | |
6e937c1c AC |
847 | -- Common processing for Interrupt and Attach_Handler pragmas |
848 | ||
ac9e9918 RD |
849 | procedure Process_Restrictions_Or_Restriction_Warnings (Warn : Boolean); |
850 | -- Common processing for Restrictions and Restriction_Warnings pragmas. | |
23e6615e RD |
851 | -- Warn is True for Restriction_Warnings, or for Restrictions if the |
852 | -- flag Treat_Restrictions_As_Warnings is set, and False if this flag | |
853 | -- is not set in the Restrictions case. | |
996ae0b0 RK |
854 | |
855 | procedure Process_Suppress_Unsuppress (Suppress_Case : Boolean); | |
856 | -- Common processing for Suppress and Unsuppress. The boolean parameter | |
857 | -- Suppress_Case is True for the Suppress case, and False for the | |
858 | -- Unsuppress case. | |
859 | ||
860 | procedure Set_Exported (E : Entity_Id; Arg : Node_Id); | |
861 | -- This procedure sets the Is_Exported flag for the given entity, | |
862 | -- checking that the entity was not previously imported. Arg is | |
fbf5a39b AC |
863 | -- the argument that specified the entity. A check is also made |
864 | -- for exporting inappropriate entities. | |
996ae0b0 RK |
865 | |
866 | procedure Set_Extended_Import_Export_External_Name | |
867 | (Internal_Ent : Entity_Id; | |
868 | Arg_External : Node_Id); | |
869 | -- Common processing for all extended import export pragmas. The first | |
870 | -- argument, Internal_Ent, is the internal entity, which has already | |
871 | -- been checked for validity by the caller. Arg_External is from the | |
872 | -- Import or Export pragma, and may be null if no External parameter | |
873 | -- was present. If Arg_External is present and is a non-null string | |
874 | -- (a null string is treated as the default), then the Interface_Name | |
875 | -- field of Internal_Ent is set appropriately. | |
876 | ||
877 | procedure Set_Imported (E : Entity_Id); | |
878 | -- This procedure sets the Is_Imported flag for the given entity, | |
879 | -- checking that it is not previously exported or imported. | |
880 | ||
881 | procedure Set_Mechanism_Value (Ent : Entity_Id; Mech_Name : Node_Id); | |
882 | -- Mech is a parameter passing mechanism (see Import_Function syntax | |
883 | -- for MECHANISM_NAME). This routine checks that the mechanism argument | |
884 | -- has the right form, and if not issues an error message. If the | |
885 | -- argument has the right form then the Mechanism field of Ent is | |
886 | -- set appropriately. | |
887 | ||
8a36a0cc | 888 | procedure Set_Ravenscar_Profile (N : Node_Id); |
b3b9865d AC |
889 | -- Activate the set of configuration pragmas and restrictions that make |
890 | -- up the Ravenscar Profile. N is the corresponding pragma node, which | |
891 | -- is used for error messages on any constructs that violate the | |
892 | -- profile. | |
8a36a0cc | 893 | |
2fa9443e ES |
894 | --------------------- |
895 | -- Ada_2005_Pragma -- | |
896 | --------------------- | |
897 | ||
898 | procedure Ada_2005_Pragma is | |
899 | begin | |
900 | if Ada_Version <= Ada_95 then | |
901 | Check_Restriction (No_Implementation_Pragmas, N); | |
902 | end if; | |
903 | end Ada_2005_Pragma; | |
904 | ||
bfae1846 AC |
905 | --------------------- |
906 | -- Ada_2012_Pragma -- | |
907 | --------------------- | |
908 | ||
909 | procedure Ada_2012_Pragma is | |
910 | begin | |
0791fbe9 | 911 | if Ada_Version <= Ada_2005 then |
bfae1846 AC |
912 | Check_Restriction (No_Implementation_Pragmas, N); |
913 | end if; | |
914 | end Ada_2012_Pragma; | |
915 | ||
996ae0b0 RK |
916 | -------------------------- |
917 | -- Check_Ada_83_Warning -- | |
918 | -------------------------- | |
919 | ||
920 | procedure Check_Ada_83_Warning is | |
921 | begin | |
0ab80019 | 922 | if Ada_Version = Ada_83 and then Comes_From_Source (N) then |
996ae0b0 RK |
923 | Error_Msg_N ("(Ada 83) pragma& is non-standard?", N); |
924 | end if; | |
925 | end Check_Ada_83_Warning; | |
926 | ||
927 | --------------------- | |
928 | -- Check_Arg_Count -- | |
929 | --------------------- | |
930 | ||
931 | procedure Check_Arg_Count (Required : Nat) is | |
932 | begin | |
933 | if Arg_Count /= Required then | |
934 | Error_Pragma ("wrong number of arguments for pragma%"); | |
935 | end if; | |
936 | end Check_Arg_Count; | |
937 | ||
cc335f43 AC |
938 | -------------------------------- |
939 | -- Check_Arg_Is_External_Name -- | |
940 | -------------------------------- | |
941 | ||
942 | procedure Check_Arg_Is_External_Name (Arg : Node_Id) is | |
943 | Argx : constant Node_Id := Get_Pragma_Arg (Arg); | |
944 | ||
945 | begin | |
946 | if Nkind (Argx) = N_Identifier then | |
947 | return; | |
948 | ||
949 | else | |
950 | Analyze_And_Resolve (Argx, Standard_String); | |
951 | ||
952 | if Is_OK_Static_Expression (Argx) then | |
953 | return; | |
954 | ||
955 | elsif Etype (Argx) = Any_Type then | |
956 | raise Pragma_Exit; | |
957 | ||
958 | -- An interesting special case, if we have a string literal and | |
959 | -- we are in Ada 83 mode, then we allow it even though it will | |
960 | -- not be flagged as static. This allows expected Ada 83 mode | |
961 | -- use of external names which are string literals, even though | |
962 | -- technically these are not static in Ada 83. | |
963 | ||
964 | elsif Ada_Version = Ada_83 | |
965 | and then Nkind (Argx) = N_String_Literal | |
966 | then | |
967 | return; | |
968 | ||
969 | -- Static expression that raises Constraint_Error. This has | |
970 | -- already been flagged, so just exit from pragma processing. | |
971 | ||
972 | elsif Is_Static_Expression (Argx) then | |
973 | raise Pragma_Exit; | |
974 | ||
975 | -- Here we have a real error (non-static expression) | |
976 | ||
977 | else | |
1b24ada5 | 978 | Error_Msg_Name_1 := Pname; |
0f1a6a0b AC |
979 | |
980 | declare | |
981 | Msg : String := | |
982 | "argument for pragma% must be a identifier or " | |
983 | & "static string expression!"; | |
984 | begin | |
985 | Fix_Error (Msg); | |
986 | Flag_Non_Static_Expr (Msg, Argx); | |
987 | raise Pragma_Exit; | |
988 | end; | |
cc335f43 AC |
989 | end if; |
990 | end if; | |
991 | end Check_Arg_Is_External_Name; | |
992 | ||
996ae0b0 RK |
993 | ----------------------------- |
994 | -- Check_Arg_Is_Identifier -- | |
995 | ----------------------------- | |
996 | ||
997 | procedure Check_Arg_Is_Identifier (Arg : Node_Id) is | |
998 | Argx : constant Node_Id := Get_Pragma_Arg (Arg); | |
996ae0b0 RK |
999 | begin |
1000 | if Nkind (Argx) /= N_Identifier then | |
1001 | Error_Pragma_Arg | |
1002 | ("argument for pragma% must be identifier", Argx); | |
1003 | end if; | |
1004 | end Check_Arg_Is_Identifier; | |
1005 | ||
1006 | ---------------------------------- | |
1007 | -- Check_Arg_Is_Integer_Literal -- | |
1008 | ---------------------------------- | |
1009 | ||
1010 | procedure Check_Arg_Is_Integer_Literal (Arg : Node_Id) is | |
1011 | Argx : constant Node_Id := Get_Pragma_Arg (Arg); | |
996ae0b0 RK |
1012 | begin |
1013 | if Nkind (Argx) /= N_Integer_Literal then | |
1014 | Error_Pragma_Arg | |
1015 | ("argument for pragma% must be integer literal", Argx); | |
1016 | end if; | |
1017 | end Check_Arg_Is_Integer_Literal; | |
1018 | ||
1019 | ------------------------------------------- | |
1020 | -- Check_Arg_Is_Library_Level_Local_Name -- | |
1021 | ------------------------------------------- | |
1022 | ||
1023 | -- LOCAL_NAME ::= | |
1024 | -- DIRECT_NAME | |
1025 | -- | DIRECT_NAME'ATTRIBUTE_DESIGNATOR | |
1026 | -- | library_unit_NAME | |
1027 | ||
1028 | procedure Check_Arg_Is_Library_Level_Local_Name (Arg : Node_Id) is | |
1029 | begin | |
1030 | Check_Arg_Is_Local_Name (Arg); | |
1031 | ||
0f1a6a0b | 1032 | if not Is_Library_Level_Entity (Entity (Get_Pragma_Arg (Arg))) |
996ae0b0 RK |
1033 | and then Comes_From_Source (N) |
1034 | then | |
1035 | Error_Pragma_Arg | |
1036 | ("argument for pragma% must be library level entity", Arg); | |
1037 | end if; | |
1038 | end Check_Arg_Is_Library_Level_Local_Name; | |
1039 | ||
1040 | ----------------------------- | |
1041 | -- Check_Arg_Is_Local_Name -- | |
1042 | ----------------------------- | |
1043 | ||
1044 | -- LOCAL_NAME ::= | |
1045 | -- DIRECT_NAME | |
1046 | -- | DIRECT_NAME'ATTRIBUTE_DESIGNATOR | |
1047 | -- | library_unit_NAME | |
1048 | ||
1049 | procedure Check_Arg_Is_Local_Name (Arg : Node_Id) is | |
1050 | Argx : constant Node_Id := Get_Pragma_Arg (Arg); | |
1051 | ||
1052 | begin | |
1053 | Analyze (Argx); | |
1054 | ||
1055 | if Nkind (Argx) not in N_Direct_Name | |
1056 | and then (Nkind (Argx) /= N_Attribute_Reference | |
1057 | or else Present (Expressions (Argx)) | |
1058 | or else Nkind (Prefix (Argx)) /= N_Identifier) | |
1059 | and then (not Is_Entity_Name (Argx) | |
1060 | or else not Is_Compilation_Unit (Entity (Argx))) | |
1061 | then | |
1062 | Error_Pragma_Arg ("argument for pragma% must be local name", Argx); | |
1063 | end if; | |
1064 | ||
c3ad80f0 TQ |
1065 | -- No further check required if not an entity name |
1066 | ||
1067 | if not Is_Entity_Name (Argx) then | |
1068 | null; | |
1069 | ||
1070 | else | |
1071 | declare | |
1072 | OK : Boolean; | |
1073 | Ent : constant Entity_Id := Entity (Argx); | |
1074 | Scop : constant Entity_Id := Scope (Ent); | |
1075 | begin | |
1076 | -- Case of a pragma applied to a compilation unit: pragma must | |
1077 | -- occur immediately after the program unit in the compilation. | |
1078 | ||
1079 | if Is_Compilation_Unit (Ent) then | |
1080 | declare | |
1081 | Decl : constant Node_Id := Unit_Declaration_Node (Ent); | |
df177175 | 1082 | |
c3ad80f0 TQ |
1083 | begin |
1084 | -- Case of pragma placed immediately after spec | |
1085 | ||
1086 | if Parent (N) = Aux_Decls_Node (Parent (Decl)) then | |
1087 | OK := True; | |
1088 | ||
1089 | -- Case of pragma placed immediately after body | |
1090 | ||
1091 | elsif Nkind (Decl) = N_Subprogram_Declaration | |
1092 | and then Present (Corresponding_Body (Decl)) | |
1093 | then | |
1094 | OK := Parent (N) = | |
1095 | Aux_Decls_Node | |
1096 | (Parent (Unit_Declaration_Node | |
1097 | (Corresponding_Body (Decl)))); | |
1098 | ||
1099 | -- All other cases are illegal | |
1100 | ||
1101 | else | |
1102 | OK := False; | |
1103 | end if; | |
1104 | end; | |
1105 | ||
1106 | -- Special restricted placement rule from 10.2.1(11.8/2) | |
1107 | ||
1108 | elsif Is_Generic_Formal (Ent) | |
1109 | and then Prag_Id = Pragma_Preelaborable_Initialization | |
1110 | then | |
1111 | OK := List_Containing (N) = | |
1112 | Generic_Formal_Declarations | |
1113 | (Unit_Declaration_Node (Scop)); | |
1114 | ||
1115 | -- Default case, just check that the pragma occurs in the scope | |
1116 | -- of the entity denoted by the name. | |
1117 | ||
1118 | else | |
1119 | OK := Current_Scope = Scop; | |
1120 | end if; | |
1121 | ||
1122 | if not OK then | |
1123 | Error_Pragma_Arg | |
1124 | ("pragma% argument must be in same declarative part", Arg); | |
1125 | end if; | |
1126 | end; | |
996ae0b0 RK |
1127 | end if; |
1128 | end Check_Arg_Is_Local_Name; | |
1129 | ||
1130 | --------------------------------- | |
1131 | -- Check_Arg_Is_Locking_Policy -- | |
1132 | --------------------------------- | |
1133 | ||
1134 | procedure Check_Arg_Is_Locking_Policy (Arg : Node_Id) is | |
1135 | Argx : constant Node_Id := Get_Pragma_Arg (Arg); | |
1136 | ||
1137 | begin | |
1138 | Check_Arg_Is_Identifier (Argx); | |
1139 | ||
1140 | if not Is_Locking_Policy_Name (Chars (Argx)) then | |
b4ca2d2c | 1141 | Error_Pragma_Arg ("& is not a valid locking policy name", Argx); |
996ae0b0 RK |
1142 | end if; |
1143 | end Check_Arg_Is_Locking_Policy; | |
1144 | ||
1145 | ------------------------- | |
1146 | -- Check_Arg_Is_One_Of -- | |
1147 | ------------------------- | |
1148 | ||
1149 | procedure Check_Arg_Is_One_Of (Arg : Node_Id; N1, N2 : Name_Id) is | |
1150 | Argx : constant Node_Id := Get_Pragma_Arg (Arg); | |
1151 | ||
1152 | begin | |
1153 | Check_Arg_Is_Identifier (Argx); | |
1154 | ||
1155 | if Chars (Argx) /= N1 and then Chars (Argx) /= N2 then | |
1156 | Error_Msg_Name_2 := N1; | |
1157 | Error_Msg_Name_3 := N2; | |
1158 | Error_Pragma_Arg ("argument for pragma% must be% or%", Argx); | |
1159 | end if; | |
1160 | end Check_Arg_Is_One_Of; | |
1161 | ||
1162 | procedure Check_Arg_Is_One_Of | |
1163 | (Arg : Node_Id; | |
1164 | N1, N2, N3 : Name_Id) | |
1165 | is | |
1166 | Argx : constant Node_Id := Get_Pragma_Arg (Arg); | |
1167 | ||
1168 | begin | |
1169 | Check_Arg_Is_Identifier (Argx); | |
1170 | ||
1171 | if Chars (Argx) /= N1 | |
1172 | and then Chars (Argx) /= N2 | |
1173 | and then Chars (Argx) /= N3 | |
1174 | then | |
1175 | Error_Pragma_Arg ("invalid argument for pragma%", Argx); | |
1176 | end if; | |
1177 | end Check_Arg_Is_One_Of; | |
1178 | ||
21d27997 | 1179 | procedure Check_Arg_Is_One_Of |
9b3956dd RD |
1180 | (Arg : Node_Id; |
1181 | N1, N2, N3, N4, N5 : Name_Id) | |
21d27997 RD |
1182 | is |
1183 | Argx : constant Node_Id := Get_Pragma_Arg (Arg); | |
1184 | ||
1185 | begin | |
1186 | Check_Arg_Is_Identifier (Argx); | |
1187 | ||
1188 | if Chars (Argx) /= N1 | |
1189 | and then Chars (Argx) /= N2 | |
1190 | and then Chars (Argx) /= N3 | |
1191 | and then Chars (Argx) /= N4 | |
9b3956dd | 1192 | and then Chars (Argx) /= N5 |
21d27997 RD |
1193 | then |
1194 | Error_Pragma_Arg ("invalid argument for pragma%", Argx); | |
1195 | end if; | |
1196 | end Check_Arg_Is_One_Of; | |
996ae0b0 RK |
1197 | --------------------------------- |
1198 | -- Check_Arg_Is_Queuing_Policy -- | |
1199 | --------------------------------- | |
1200 | ||
1201 | procedure Check_Arg_Is_Queuing_Policy (Arg : Node_Id) is | |
1202 | Argx : constant Node_Id := Get_Pragma_Arg (Arg); | |
1203 | ||
1204 | begin | |
1205 | Check_Arg_Is_Identifier (Argx); | |
1206 | ||
1207 | if not Is_Queuing_Policy_Name (Chars (Argx)) then | |
b4ca2d2c | 1208 | Error_Pragma_Arg ("& is not a valid queuing policy name", Argx); |
996ae0b0 RK |
1209 | end if; |
1210 | end Check_Arg_Is_Queuing_Policy; | |
1211 | ||
1212 | ------------------------------------ | |
1213 | -- Check_Arg_Is_Static_Expression -- | |
1214 | ------------------------------------ | |
1215 | ||
1216 | procedure Check_Arg_Is_Static_Expression | |
1217 | (Arg : Node_Id; | |
37765e95 RD |
1218 | Typ : Entity_Id := Empty) |
1219 | is | |
996ae0b0 | 1220 | begin |
8c18a165 | 1221 | Check_Expr_Is_Static_Expression (Get_Pragma_Arg (Arg), Typ); |
996ae0b0 RK |
1222 | end Check_Arg_Is_Static_Expression; |
1223 | ||
996ae0b0 RK |
1224 | ------------------------------------------ |
1225 | -- Check_Arg_Is_Task_Dispatching_Policy -- | |
1226 | ------------------------------------------ | |
1227 | ||
1228 | procedure Check_Arg_Is_Task_Dispatching_Policy (Arg : Node_Id) is | |
1229 | Argx : constant Node_Id := Get_Pragma_Arg (Arg); | |
1230 | ||
1231 | begin | |
1232 | Check_Arg_Is_Identifier (Argx); | |
1233 | ||
1234 | if not Is_Task_Dispatching_Policy_Name (Chars (Argx)) then | |
1235 | Error_Pragma_Arg | |
1236 | ("& is not a valid task dispatching policy name", Argx); | |
1237 | end if; | |
1238 | end Check_Arg_Is_Task_Dispatching_Policy; | |
1239 | ||
59e5fbe0 RD |
1240 | --------------------- |
1241 | -- Check_Arg_Order -- | |
1242 | --------------------- | |
1243 | ||
1244 | procedure Check_Arg_Order (Names : Name_List) is | |
1245 | Arg : Node_Id; | |
1246 | ||
1247 | Highest_So_Far : Natural := 0; | |
1248 | -- Highest index in Names seen do far | |
1249 | ||
1250 | begin | |
1251 | Arg := Arg1; | |
1252 | for J in 1 .. Arg_Count loop | |
1253 | if Chars (Arg) /= No_Name then | |
1254 | for K in Names'Range loop | |
1255 | if Chars (Arg) = Names (K) then | |
1256 | if K < Highest_So_Far then | |
1b24ada5 | 1257 | Error_Msg_Name_1 := Pname; |
59e5fbe0 RD |
1258 | Error_Msg_N |
1259 | ("parameters out of order for pragma%", Arg); | |
1260 | Error_Msg_Name_1 := Names (K); | |
1261 | Error_Msg_Name_2 := Names (Highest_So_Far); | |
ed2233dc | 1262 | Error_Msg_N ("\% must appear before %", Arg); |
59e5fbe0 RD |
1263 | raise Pragma_Exit; |
1264 | ||
1265 | else | |
1266 | Highest_So_Far := K; | |
1267 | end if; | |
1268 | end if; | |
1269 | end loop; | |
1270 | end if; | |
1271 | ||
1272 | Arg := Next (Arg); | |
1273 | end loop; | |
1274 | end Check_Arg_Order; | |
1275 | ||
996ae0b0 RK |
1276 | -------------------------------- |
1277 | -- Check_At_Least_N_Arguments -- | |
1278 | -------------------------------- | |
1279 | ||
1280 | procedure Check_At_Least_N_Arguments (N : Nat) is | |
1281 | begin | |
1282 | if Arg_Count < N then | |
1283 | Error_Pragma ("too few arguments for pragma%"); | |
1284 | end if; | |
1285 | end Check_At_Least_N_Arguments; | |
1286 | ||
1287 | ------------------------------- | |
1288 | -- Check_At_Most_N_Arguments -- | |
1289 | ------------------------------- | |
1290 | ||
1291 | procedure Check_At_Most_N_Arguments (N : Nat) is | |
1292 | Arg : Node_Id; | |
996ae0b0 RK |
1293 | begin |
1294 | if Arg_Count > N then | |
1295 | Arg := Arg1; | |
996ae0b0 RK |
1296 | for J in 1 .. N loop |
1297 | Next (Arg); | |
1298 | Error_Pragma_Arg ("too many arguments for pragma%", Arg); | |
1299 | end loop; | |
1300 | end if; | |
1301 | end Check_At_Most_N_Arguments; | |
1302 | ||
5d09245e AC |
1303 | --------------------- |
1304 | -- Check_Component -- | |
1305 | --------------------- | |
1306 | ||
72e9f2b9 AC |
1307 | procedure Check_Component |
1308 | (Comp : Node_Id; | |
1309 | UU_Typ : Entity_Id; | |
1310 | In_Variant_Part : Boolean := False) | |
1311 | is | |
1312 | Comp_Id : constant Entity_Id := Defining_Identifier (Comp); | |
1313 | Sindic : constant Node_Id := | |
1314 | Subtype_Indication (Component_Definition (Comp)); | |
1315 | Typ : constant Entity_Id := Etype (Comp_Id); | |
5d09245e | 1316 | |
72e9f2b9 | 1317 | function Inside_Generic_Body (Id : Entity_Id) return Boolean; |
229db351 AC |
1318 | -- Determine whether entity Id appears inside a generic body. |
1319 | -- Shouldn't this be in a more general place ??? | |
5d09245e | 1320 | |
72e9f2b9 AC |
1321 | ------------------------- |
1322 | -- Inside_Generic_Body -- | |
1323 | ------------------------- | |
57193e09 | 1324 | |
72e9f2b9 | 1325 | function Inside_Generic_Body (Id : Entity_Id) return Boolean is |
229db351 | 1326 | S : Entity_Id; |
57193e09 | 1327 | |
72e9f2b9 | 1328 | begin |
229db351 | 1329 | S := Id; |
b4ca2d2c | 1330 | while Present (S) and then S /= Standard_Standard loop |
72e9f2b9 AC |
1331 | if Ekind (S) = E_Generic_Package |
1332 | and then In_Package_Body (S) | |
1333 | then | |
1334 | return True; | |
57193e09 | 1335 | end if; |
72e9f2b9 AC |
1336 | |
1337 | S := Scope (S); | |
1338 | end loop; | |
1339 | ||
1340 | return False; | |
1341 | end Inside_Generic_Body; | |
1342 | ||
1343 | -- Start of processing for Check_Component | |
1344 | ||
1345 | begin | |
1346 | -- Ada 2005 (AI-216): If a component subtype is subject to a per- | |
1347 | -- object constraint, then the component type shall be an Unchecked_ | |
1348 | -- Union. | |
1349 | ||
1350 | if Nkind (Sindic) = N_Subtype_Indication | |
1351 | and then Has_Per_Object_Constraint (Comp_Id) | |
1352 | and then not Is_Unchecked_Union (Etype (Subtype_Mark (Sindic))) | |
1353 | then | |
1354 | Error_Msg_N | |
1355 | ("component subtype subject to per-object constraint " & | |
1356 | "must be an Unchecked_Union", Comp); | |
1357 | ||
1358 | -- Ada 2012 (AI05-0026): For an unchecked union type declared within | |
1359 | -- the body of a generic unit, or within the body of any of its | |
1360 | -- descendant library units, no part of the type of a component | |
1361 | -- declared in a variant_part of the unchecked union type shall be of | |
1362 | -- a formal private type or formal private extension declared within | |
1363 | -- the formal part of the generic unit. | |
1364 | ||
1365 | elsif Ada_Version >= Ada_2012 | |
1366 | and then Inside_Generic_Body (UU_Typ) | |
1367 | and then In_Variant_Part | |
1368 | and then Is_Private_Type (Typ) | |
1369 | and then Is_Generic_Type (Typ) | |
1370 | then | |
1371 | Error_Msg_N | |
1372 | ("component of Unchecked_Union cannot be of generic type", Comp); | |
1373 | ||
1374 | elsif Needs_Finalization (Typ) then | |
1375 | Error_Msg_N | |
1376 | ("component of Unchecked_Union cannot be controlled", Comp); | |
1377 | ||
1378 | elsif Has_Task (Typ) then | |
1379 | Error_Msg_N | |
1380 | ("component of Unchecked_Union cannot have tasks", Comp); | |
5d09245e AC |
1381 | end if; |
1382 | end Check_Component; | |
1383 | ||
40f07b4b AC |
1384 | ---------------------------- |
1385 | -- Check_Duplicate_Pragma -- | |
1386 | ---------------------------- | |
1387 | ||
af31bffb | 1388 | procedure Check_Duplicate_Pragma (E : Entity_Id) is |
c159409f | 1389 | P : Node_Id; |
40f07b4b | 1390 | |
af31bffb | 1391 | begin |
0f1a6a0b AC |
1392 | -- Nothing to do if this pragma comes from an aspect specification, |
1393 | -- since we could not be duplicating a pragma, and we dealt with the | |
1394 | -- case of duplicated aspects in Analyze_Aspect_Specifications. | |
1395 | ||
1396 | if From_Aspect_Specification (N) then | |
1397 | return; | |
1398 | end if; | |
1399 | ||
1400 | -- Otherwise current pragma may duplicate previous pragma or a | |
1401 | -- previously given aspect specification for the same pragma. | |
1402 | ||
c159409f | 1403 | P := Get_Rep_Item_For_Entity (E, Pragma_Name (N)); |
40f07b4b | 1404 | |
c159409f AC |
1405 | if Present (P) then |
1406 | Error_Msg_Name_1 := Pragma_Name (N); | |
1407 | Error_Msg_Sloc := Sloc (P); | |
40f07b4b | 1408 | |
c159409f AC |
1409 | if Nkind (P) = N_Aspect_Specification |
1410 | or else From_Aspect_Specification (P) | |
40f07b4b | 1411 | then |
beacce02 | 1412 | Error_Msg_NE ("aspect% for & previously given#", N, E); |
c159409f AC |
1413 | else |
1414 | Error_Msg_NE ("pragma% for & duplicates pragma#", N, E); | |
40f07b4b | 1415 | end if; |
c159409f AC |
1416 | |
1417 | raise Pragma_Exit; | |
af31bffb AC |
1418 | end if; |
1419 | end Check_Duplicate_Pragma; | |
1420 | ||
523456db AC |
1421 | ---------------------------------- |
1422 | -- Check_Duplicated_Export_Name -- | |
1423 | ---------------------------------- | |
1424 | ||
1425 | procedure Check_Duplicated_Export_Name (Nam : Node_Id) is | |
1426 | String_Val : constant String_Id := Strval (Nam); | |
1427 | ||
1428 | begin | |
1429 | -- We are only interested in the export case, and in the case of | |
1430 | -- generics, it is the instance, not the template, that is the | |
1431 | -- problem (the template will generate a warning in any case). | |
1432 | ||
1433 | if not Inside_A_Generic | |
1434 | and then (Prag_Id = Pragma_Export | |
1435 | or else | |
1436 | Prag_Id = Pragma_Export_Procedure | |
1437 | or else | |
1438 | Prag_Id = Pragma_Export_Valued_Procedure | |
1439 | or else | |
1440 | Prag_Id = Pragma_Export_Function) | |
1441 | then | |
1442 | for J in Externals.First .. Externals.Last loop | |
1443 | if String_Equal (String_Val, Strval (Externals.Table (J))) then | |
1444 | Error_Msg_Sloc := Sloc (Externals.Table (J)); | |
1445 | Error_Msg_N ("external name duplicates name given#", Nam); | |
1446 | exit; | |
1447 | end if; | |
1448 | end loop; | |
1449 | ||
1450 | Externals.Append (Nam); | |
1451 | end if; | |
1452 | end Check_Duplicated_Export_Name; | |
1453 | ||
8c18a165 AC |
1454 | ------------------------------------- |
1455 | -- Check_Expr_Is_Static_Expression -- | |
1456 | ------------------------------------- | |
1457 | ||
1458 | procedure Check_Expr_Is_Static_Expression | |
4c318253 | 1459 | (Expr : Node_Id; |
37765e95 RD |
1460 | Typ : Entity_Id := Empty) |
1461 | is | |
8c18a165 AC |
1462 | begin |
1463 | if Present (Typ) then | |
4c318253 | 1464 | Analyze_And_Resolve (Expr, Typ); |
8c18a165 | 1465 | else |
4c318253 | 1466 | Analyze_And_Resolve (Expr); |
8c18a165 AC |
1467 | end if; |
1468 | ||
4c318253 | 1469 | if Is_OK_Static_Expression (Expr) then |
8c18a165 AC |
1470 | return; |
1471 | ||
4c318253 | 1472 | elsif Etype (Expr) = Any_Type then |
8c18a165 AC |
1473 | raise Pragma_Exit; |
1474 | ||
1475 | -- An interesting special case, if we have a string literal and we | |
1476 | -- are in Ada 83 mode, then we allow it even though it will not be | |
1477 | -- flagged as static. This allows the use of Ada 95 pragmas like | |
1478 | -- Import in Ada 83 mode. They will of course be flagged with | |
1479 | -- warnings as usual, but will not cause errors. | |
1480 | ||
1481 | elsif Ada_Version = Ada_83 | |
4c318253 | 1482 | and then Nkind (Expr) = N_String_Literal |
8c18a165 AC |
1483 | then |
1484 | return; | |
1485 | ||
1486 | -- Static expression that raises Constraint_Error. This has already | |
1487 | -- been flagged, so just exit from pragma processing. | |
1488 | ||
4c318253 | 1489 | elsif Is_Static_Expression (Expr) then |
8c18a165 AC |
1490 | raise Pragma_Exit; |
1491 | ||
1492 | -- Finally, we have a real error | |
1493 | ||
1494 | else | |
1495 | Error_Msg_Name_1 := Pname; | |
1496 | ||
1497 | declare | |
1498 | Msg : String := | |
1499 | "argument for pragma% must be a static expression!"; | |
1500 | begin | |
1501 | Fix_Error (Msg); | |
4c318253 | 1502 | Flag_Non_Static_Expr (Msg, Expr); |
8c18a165 AC |
1503 | end; |
1504 | ||
1505 | raise Pragma_Exit; | |
1506 | end if; | |
1507 | end Check_Expr_Is_Static_Expression; | |
1508 | ||
996ae0b0 RK |
1509 | ------------------------- |
1510 | -- Check_First_Subtype -- | |
1511 | ------------------------- | |
1512 | ||
1513 | procedure Check_First_Subtype (Arg : Node_Id) is | |
1514 | Argx : constant Node_Id := Get_Pragma_Arg (Arg); | |
b4ca2d2c | 1515 | Ent : constant Entity_Id := Entity (Argx); |
229db351 | 1516 | |
996ae0b0 | 1517 | begin |
b4ca2d2c AC |
1518 | if Is_First_Subtype (Ent) then |
1519 | null; | |
1520 | ||
1521 | elsif Is_Type (Ent) then | |
996ae0b0 RK |
1522 | Error_Pragma_Arg |
1523 | ("pragma% cannot apply to subtype", Argx); | |
b4ca2d2c AC |
1524 | |
1525 | elsif Is_Object (Ent) then | |
1526 | Error_Pragma_Arg | |
1527 | ("pragma% cannot apply to object, requires a type", Argx); | |
1528 | ||
1529 | else | |
1530 | Error_Pragma_Arg | |
1531 | ("pragma% cannot apply to&, requires a type", Argx); | |
996ae0b0 RK |
1532 | end if; |
1533 | end Check_First_Subtype; | |
1534 | ||
dac3bede YM |
1535 | ---------------------- |
1536 | -- Check_Identifier -- | |
1537 | ---------------------- | |
1538 | ||
1539 | procedure Check_Identifier (Arg : Node_Id; Id : Name_Id) is | |
1540 | begin | |
1541 | if Present (Arg) | |
1542 | and then Nkind (Arg) = N_Pragma_Argument_Association | |
1543 | then | |
1544 | if Chars (Arg) = No_Name or else Chars (Arg) /= Id then | |
1545 | Error_Msg_Name_1 := Pname; | |
1546 | Error_Msg_Name_2 := Id; | |
1547 | Error_Msg_N ("pragma% argument expects identifier%", Arg); | |
1548 | raise Pragma_Exit; | |
1549 | end if; | |
1550 | end if; | |
1551 | end Check_Identifier; | |
1552 | ||
1bf773bb AC |
1553 | -------------------------------- |
1554 | -- Check_Identifier_Is_One_Of -- | |
1555 | -------------------------------- | |
1556 | ||
1557 | procedure Check_Identifier_Is_One_Of (Arg : Node_Id; N1, N2 : Name_Id) is | |
1558 | begin | |
1559 | if Present (Arg) | |
1560 | and then Nkind (Arg) = N_Pragma_Argument_Association | |
1561 | then | |
1562 | if Chars (Arg) = No_Name then | |
1563 | Error_Msg_Name_1 := Pname; | |
1564 | Error_Msg_N ("pragma% argument expects an identifier", Arg); | |
1565 | raise Pragma_Exit; | |
1566 | ||
1567 | elsif Chars (Arg) /= N1 | |
1568 | and then Chars (Arg) /= N2 | |
1569 | then | |
1570 | Error_Msg_Name_1 := Pname; | |
1571 | Error_Msg_N ("invalid identifier for pragma% argument", Arg); | |
1572 | raise Pragma_Exit; | |
1573 | end if; | |
1574 | end if; | |
1575 | end Check_Identifier_Is_One_Of; | |
1576 | ||
996ae0b0 RK |
1577 | --------------------------- |
1578 | -- Check_In_Main_Program -- | |
1579 | --------------------------- | |
1580 | ||
1581 | procedure Check_In_Main_Program is | |
1582 | P : constant Node_Id := Parent (N); | |
1583 | ||
1584 | begin | |
1585 | -- Must be at in subprogram body | |
1586 | ||
1587 | if Nkind (P) /= N_Subprogram_Body then | |
1588 | Error_Pragma ("% pragma allowed only in subprogram"); | |
1589 | ||
1590 | -- Otherwise warn if obviously not main program | |
1591 | ||
1592 | elsif Present (Parameter_Specifications (Specification (P))) | |
fbf5a39b | 1593 | or else not Is_Compilation_Unit (Defining_Entity (P)) |
996ae0b0 | 1594 | then |
1b24ada5 | 1595 | Error_Msg_Name_1 := Pname; |
996ae0b0 RK |
1596 | Error_Msg_N |
1597 | ("?pragma% is only effective in main program", N); | |
1598 | end if; | |
1599 | end Check_In_Main_Program; | |
1600 | ||
1601 | --------------------------------------- | |
1602 | -- Check_Interrupt_Or_Attach_Handler -- | |
1603 | --------------------------------------- | |
1604 | ||
1605 | procedure Check_Interrupt_Or_Attach_Handler is | |
0f1a6a0b | 1606 | Arg1_X : constant Node_Id := Get_Pragma_Arg (Arg1); |
d9e0a587 | 1607 | Handler_Proc, Proc_Scope : Entity_Id; |
996ae0b0 RK |
1608 | |
1609 | begin | |
1610 | Analyze (Arg1_X); | |
1611 | ||
d9e0a587 | 1612 | if Prag_Id = Pragma_Interrupt_Handler then |
9f4fd324 | 1613 | Check_Restriction (No_Dynamic_Attachment, N); |
996ae0b0 RK |
1614 | end if; |
1615 | ||
d9e0a587 EB |
1616 | Handler_Proc := Find_Unique_Parameterless_Procedure (Arg1_X, Arg1); |
1617 | Proc_Scope := Scope (Handler_Proc); | |
fbf5a39b | 1618 | |
d9e0a587 EB |
1619 | -- On AAMP only, a pragma Interrupt_Handler is supported for |
1620 | -- nonprotected parameterless procedures. | |
fbf5a39b | 1621 | |
d9e0a587 EB |
1622 | if not AAMP_On_Target |
1623 | or else Prag_Id = Pragma_Attach_Handler | |
1624 | then | |
1625 | if Ekind (Proc_Scope) /= E_Protected_Type then | |
996ae0b0 | 1626 | Error_Pragma_Arg |
fbf5a39b AC |
1627 | ("argument of pragma% must be protected procedure", Arg1); |
1628 | end if; | |
1629 | ||
d9e0a587 EB |
1630 | if Parent (N) /= Protected_Definition (Parent (Proc_Scope)) then |
1631 | Error_Pragma ("pragma% must be in protected definition"); | |
996ae0b0 | 1632 | end if; |
d9e0a587 | 1633 | end if; |
996ae0b0 | 1634 | |
d9e0a587 EB |
1635 | if not Is_Library_Level_Entity (Proc_Scope) |
1636 | or else (AAMP_On_Target | |
1637 | and then not Is_Library_Level_Entity (Handler_Proc)) | |
1638 | then | |
1639 | Error_Pragma_Arg | |
1640 | ("argument for pragma% must be library level entity", Arg1); | |
1641 | end if; | |
6f123e48 | 1642 | |
313d6f2c | 1643 | -- AI05-0033: A pragma cannot appear within a generic body, because |
af31bffb AC |
1644 | -- instance can be in a nested scope. The check that protected type |
1645 | -- is itself a library-level declaration is done elsewhere. | |
1646 | ||
313d6f2c AC |
1647 | -- Note: we omit this check in Codepeer mode to properly handle code |
1648 | -- prior to AI-0033 (pragmas don't matter to codepeer in any case). | |
1649 | ||
6f123e48 | 1650 | if Inside_A_Generic then |
af31bffb | 1651 | if Ekind (Scope (Current_Scope)) = E_Generic_Package |
313d6f2c AC |
1652 | and then In_Package_Body (Scope (Current_Scope)) |
1653 | and then not CodePeer_Mode | |
af31bffb AC |
1654 | then |
1655 | Error_Pragma ("pragma% cannot be used inside a generic"); | |
1656 | end if; | |
6f123e48 | 1657 | end if; |
996ae0b0 RK |
1658 | end Check_Interrupt_Or_Attach_Handler; |
1659 | ||
1660 | ------------------------------------------- | |
1661 | -- Check_Is_In_Decl_Part_Or_Package_Spec -- | |
1662 | ------------------------------------------- | |
1663 | ||
1664 | procedure Check_Is_In_Decl_Part_Or_Package_Spec is | |
1665 | P : Node_Id; | |
1666 | ||
1667 | begin | |
1668 | P := Parent (N); | |
1669 | loop | |
1670 | if No (P) then | |
1671 | exit; | |
1672 | ||
1673 | elsif Nkind (P) = N_Handled_Sequence_Of_Statements then | |
1674 | exit; | |
1675 | ||
d7ba4df4 RD |
1676 | elsif Nkind_In (P, N_Package_Specification, |
1677 | N_Block_Statement) | |
1678 | then | |
996ae0b0 RK |
1679 | return; |
1680 | ||
1681 | -- Note: the following tests seem a little peculiar, because | |
1682 | -- they test for bodies, but if we were in the statement part | |
1683 | -- of the body, we would already have hit the handled statement | |
1684 | -- sequence, so the only way we get here is by being in the | |
1685 | -- declarative part of the body. | |
1686 | ||
f2131422 JM |
1687 | elsif Nkind_In (P, N_Subprogram_Body, |
1688 | N_Package_Body, | |
1689 | N_Task_Body, | |
1690 | N_Entry_Body) | |
996ae0b0 RK |
1691 | then |
1692 | return; | |
1693 | end if; | |
1694 | ||
1695 | P := Parent (P); | |
1696 | end loop; | |
1697 | ||
1698 | Error_Pragma ("pragma% is not in declarative part or package spec"); | |
996ae0b0 RK |
1699 | end Check_Is_In_Decl_Part_Or_Package_Spec; |
1700 | ||
1701 | ------------------------- | |
1702 | -- Check_No_Identifier -- | |
1703 | ------------------------- | |
1704 | ||
1705 | procedure Check_No_Identifier (Arg : Node_Id) is | |
1706 | begin | |
0f1a6a0b AC |
1707 | if Nkind (Arg) = N_Pragma_Argument_Association |
1708 | and then Chars (Arg) /= No_Name | |
1709 | then | |
996ae0b0 RK |
1710 | Error_Pragma_Arg_Ident |
1711 | ("pragma% does not permit identifier& here", Arg); | |
1712 | end if; | |
1713 | end Check_No_Identifier; | |
1714 | ||
1715 | -------------------------- | |
1716 | -- Check_No_Identifiers -- | |
1717 | -------------------------- | |
1718 | ||
1719 | procedure Check_No_Identifiers is | |
1720 | Arg_Node : Node_Id; | |
996ae0b0 RK |
1721 | begin |
1722 | if Arg_Count > 0 then | |
1723 | Arg_Node := Arg1; | |
996ae0b0 RK |
1724 | while Present (Arg_Node) loop |
1725 | Check_No_Identifier (Arg_Node); | |
1726 | Next (Arg_Node); | |
1727 | end loop; | |
1728 | end if; | |
1729 | end Check_No_Identifiers; | |
1730 | ||
9eea4346 GB |
1731 | ------------------------ |
1732 | -- Check_No_Link_Name -- | |
1733 | ------------------------ | |
1734 | ||
1735 | procedure Check_No_Link_Name is | |
1736 | begin | |
1737 | if Present (Arg3) | |
1738 | and then Chars (Arg3) = Name_Link_Name | |
1739 | then | |
1740 | Arg4 := Arg3; | |
1741 | end if; | |
1742 | ||
1743 | if Present (Arg4) then | |
1744 | Error_Pragma_Arg | |
1745 | ("Link_Name argument not allowed for Import Intrinsic", Arg4); | |
1746 | end if; | |
1747 | end Check_No_Link_Name; | |
1748 | ||
996ae0b0 RK |
1749 | ------------------------------- |
1750 | -- Check_Optional_Identifier -- | |
1751 | ------------------------------- | |
1752 | ||
1753 | procedure Check_Optional_Identifier (Arg : Node_Id; Id : Name_Id) is | |
1754 | begin | |
811ef5ba RD |
1755 | if Present (Arg) |
1756 | and then Nkind (Arg) = N_Pragma_Argument_Association | |
1757 | and then Chars (Arg) /= No_Name | |
1758 | then | |
996ae0b0 | 1759 | if Chars (Arg) /= Id then |
1b24ada5 | 1760 | Error_Msg_Name_1 := Pname; |
996ae0b0 RK |
1761 | Error_Msg_Name_2 := Id; |
1762 | Error_Msg_N ("pragma% argument expects identifier%", Arg); | |
1763 | raise Pragma_Exit; | |
1764 | end if; | |
1765 | end if; | |
1766 | end Check_Optional_Identifier; | |
1767 | ||
1768 | procedure Check_Optional_Identifier (Arg : Node_Id; Id : String) is | |
1769 | begin | |
1770 | Name_Buffer (1 .. Id'Length) := Id; | |
1771 | Name_Len := Id'Length; | |
1772 | Check_Optional_Identifier (Arg, Name_Find); | |
1773 | end Check_Optional_Identifier; | |
1774 | ||
21d27997 RD |
1775 | -------------------------------------- |
1776 | -- Check_Precondition_Postcondition -- | |
1777 | -------------------------------------- | |
1778 | ||
1779 | procedure Check_Precondition_Postcondition (In_Body : out Boolean) is | |
1780 | P : Node_Id; | |
21d27997 RD |
1781 | PO : Node_Id; |
1782 | ||
3023ce42 | 1783 | procedure Chain_PPC (PO : Node_Id); |
dac3bede YM |
1784 | -- If PO is an entry or a [generic] subprogram declaration node, then |
1785 | -- the precondition/postcondition applies to this subprogram and the | |
1786 | -- processing for the pragma is completed. Otherwise the pragma is | |
1787 | -- misplaced. | |
3023ce42 ES |
1788 | |
1789 | --------------- | |
1790 | -- Chain_PPC -- | |
1791 | --------------- | |
1792 | ||
1793 | procedure Chain_PPC (PO : Node_Id) is | |
811ef5ba RD |
1794 | S : Entity_Id; |
1795 | P : Node_Id; | |
3023ce42 ES |
1796 | |
1797 | begin | |
811ef5ba RD |
1798 | if Nkind (PO) = N_Abstract_Subprogram_Declaration then |
1799 | if not From_Aspect_Specification (N) then | |
1800 | Error_Pragma | |
1801 | ("pragma% cannot be applied to abstract subprogram"); | |
1802 | ||
1803 | elsif Class_Present (N) then | |
1fb00064 | 1804 | null; |
811ef5ba RD |
1805 | |
1806 | else | |
1807 | Error_Pragma | |
1808 | ("aspect % requires ''Class for abstract subprogram"); | |
1809 | end if; | |
1810 | ||
5ad4969d RD |
1811 | -- AI05-0230: The same restriction applies to null procedures. For |
1812 | -- compatibility with earlier uses of the Ada pragma, apply this | |
1813 | -- rule only to aspect specifications. | |
1814 | ||
1815 | -- The above discrpency needs documentation. Robert is dubious | |
1816 | -- about whether it is a good idea ??? | |
8c4ee6f5 AC |
1817 | |
1818 | elsif Nkind (PO) = N_Subprogram_Declaration | |
1819 | and then Nkind (Specification (PO)) = N_Procedure_Specification | |
1820 | and then Null_Present (Specification (PO)) | |
1821 | and then From_Aspect_Specification (N) | |
1822 | and then not Class_Present (N) | |
1823 | then | |
1824 | Error_Pragma | |
1825 | ("aspect % requires ''Class for null procedure"); | |
1826 | ||
811ef5ba | 1827 | elsif not Nkind_In (PO, N_Subprogram_Declaration, |
1fb00064 AC |
1828 | N_Generic_Subprogram_Declaration, |
1829 | N_Entry_Declaration) | |
393e63ce RD |
1830 | then |
1831 | Pragma_Misplaced; | |
1832 | end if; | |
1833 | ||
1fb00064 | 1834 | -- Here if we have [generic] subprogram or entry declaration |
393e63ce | 1835 | |
1fb00064 AC |
1836 | if Nkind (PO) = N_Entry_Declaration then |
1837 | S := Defining_Entity (PO); | |
1838 | else | |
1839 | S := Defining_Unit_Name (Specification (PO)); | |
1840 | end if; | |
3023ce42 | 1841 | |
beacce02 AC |
1842 | -- Make sure we do not have the case of a precondition pragma when |
1843 | -- the Pre'Class aspect is present. | |
811ef5ba RD |
1844 | |
1845 | -- We do this by looking at pragmas already chained to the entity | |
1846 | -- since the aspect derived pragma will be put on this list first. | |
1847 | ||
beacce02 AC |
1848 | if Pragma_Name (N) = Name_Precondition then |
1849 | if not From_Aspect_Specification (N) then | |
dac3bede | 1850 | P := Spec_PPC_List (Contract (S)); |
beacce02 AC |
1851 | while Present (P) loop |
1852 | if Pragma_Name (P) = Name_Precondition | |
1853 | and then From_Aspect_Specification (P) | |
1854 | and then Class_Present (P) | |
1855 | then | |
1856 | Error_Msg_Sloc := Sloc (P); | |
1857 | Error_Pragma | |
1858 | ("pragma% not allowed, `Pre''Class` aspect given#"); | |
811ef5ba RD |
1859 | end if; |
1860 | ||
beacce02 AC |
1861 | P := Next_Pragma (P); |
1862 | end loop; | |
1863 | end if; | |
1864 | end if; | |
811ef5ba | 1865 | |
beacce02 AC |
1866 | -- Similarly check for Pre with inherited Pre'Class. Note that |
1867 | -- we cover the aspect case as well here. | |
1868 | ||
1869 | if Pragma_Name (N) = Name_Precondition | |
1870 | and then not Class_Present (N) | |
1871 | then | |
1872 | declare | |
1873 | Inherited : constant Subprogram_List := | |
1874 | Inherited_Subprograms (S); | |
1875 | P : Node_Id; | |
1876 | ||
1877 | begin | |
1878 | for J in Inherited'Range loop | |
dac3bede | 1879 | P := Spec_PPC_List (Contract (Inherited (J))); |
beacce02 AC |
1880 | while Present (P) loop |
1881 | if Pragma_Name (P) = Name_Precondition | |
1882 | and then Class_Present (P) | |
1883 | then | |
1884 | Error_Msg_Sloc := Sloc (P); | |
1885 | Error_Pragma | |
1886 | ("pragma% not allowed, `Pre''Class` " | |
1887 | & "aspect inherited from#"); | |
1888 | end if; | |
1889 | ||
1890 | P := Next_Pragma (P); | |
1891 | end loop; | |
1892 | end loop; | |
1893 | end; | |
811ef5ba RD |
1894 | end if; |
1895 | ||
308e6f3a | 1896 | -- Note: we do not analyze the pragma at this point. Instead we |
1fb00064 AC |
1897 | -- delay this analysis until the end of the declarative part in |
1898 | -- which the pragma appears. This implements the required delay | |
1899 | -- in this analysis, allowing forward references. The analysis | |
1900 | -- happens at the end of Analyze_Declarations. | |
3023ce42 ES |
1901 | |
1902 | -- Chain spec PPC pragma to list for subprogram | |
1903 | ||
dac3bede YM |
1904 | Set_Next_Pragma (N, Spec_PPC_List (Contract (S))); |
1905 | Set_Spec_PPC_List (Contract (S), N); | |
3023ce42 ES |
1906 | |
1907 | -- Return indicating spec case | |
1908 | ||
1909 | In_Body := False; | |
1910 | return; | |
1911 | end Chain_PPC; | |
1912 | ||
c2873f74 | 1913 | -- Start of processing for Check_Precondition_Postcondition |
3023ce42 | 1914 | |
21d27997 RD |
1915 | begin |
1916 | if not Is_List_Member (N) then | |
1917 | Pragma_Misplaced; | |
1918 | end if; | |
1919 | ||
1fb00064 AC |
1920 | -- Preanalyze message argument if present. Visibility in this |
1921 | -- argument is established at the point of pragma occurrence. | |
1922 | ||
1923 | if Arg_Count = 2 then | |
1924 | Check_Optional_Identifier (Arg2, Name_Message); | |
1925 | Preanalyze_Spec_Expression | |
1926 | (Get_Pragma_Arg (Arg2), Standard_String); | |
1927 | end if; | |
1928 | ||
44a10091 | 1929 | -- Record if pragma is disabled |
21d27997 | 1930 | |
b26be063 | 1931 | if Check_Enabled (Pname) then |
b26be063 AC |
1932 | Set_SCO_Pragma_Enabled (Loc); |
1933 | end if; | |
21d27997 | 1934 | |
3023ce42 ES |
1935 | -- If we are within an inlined body, the legality of the pragma |
1936 | -- has been checked already. | |
1937 | ||
1938 | if In_Inlined_Body then | |
1939 | In_Body := True; | |
1940 | return; | |
1941 | end if; | |
1942 | ||
21d27997 RD |
1943 | -- Search prior declarations |
1944 | ||
1945 | P := N; | |
1946 | while Present (Prev (P)) loop | |
1947 | P := Prev (P); | |
75bee270 | 1948 | |
b3b9865d AC |
1949 | -- If the previous node is a generic subprogram, do not go to to |
1950 | -- the original node, which is the unanalyzed tree: we need to | |
1951 | -- attach the pre/postconditions to the analyzed version at this | |
1952 | -- point. They get propagated to the original tree when analyzing | |
1953 | -- the corresponding body. | |
75bee270 ES |
1954 | |
1955 | if Nkind (P) not in N_Generic_Declaration then | |
1956 | PO := Original_Node (P); | |
1957 | else | |
1958 | PO := P; | |
1959 | end if; | |
21d27997 RD |
1960 | |
1961 | -- Skip past prior pragma | |
1962 | ||
1963 | if Nkind (PO) = N_Pragma then | |
1964 | null; | |
1965 | ||
1966 | -- Skip stuff not coming from source | |
1967 | ||
1968 | elsif not Comes_From_Source (PO) then | |
0b3d16c0 | 1969 | |
5ad4969d | 1970 | -- The condition may apply to a subprogram instantiation |
0b3d16c0 AC |
1971 | |
1972 | if Nkind (PO) = N_Subprogram_Declaration | |
1973 | and then Present (Generic_Parent (Specification (PO))) | |
1974 | then | |
1975 | Chain_PPC (PO); | |
1976 | return; | |
1977 | ||
24a120ac AC |
1978 | elsif Nkind (PO) = N_Subprogram_Declaration |
1979 | and then In_Instance | |
1980 | then | |
1981 | Chain_PPC (PO); | |
1982 | return; | |
1983 | ||
5ad4969d RD |
1984 | -- For all other cases of non source code, do nothing |
1985 | ||
0b3d16c0 AC |
1986 | else |
1987 | null; | |
1988 | end if; | |
21d27997 | 1989 | |
393e63ce | 1990 | -- Only remaining possibility is subprogram declaration |
21d27997 | 1991 | |
393e63ce | 1992 | else |
3023ce42 | 1993 | Chain_PPC (PO); |
21d27997 | 1994 | return; |
21d27997 RD |
1995 | end if; |
1996 | end loop; | |
1997 | ||
b3b9865d AC |
1998 | -- If we fall through loop, pragma is at start of list, so see if it |
1999 | -- is at the start of declarations of a subprogram body. | |
21d27997 RD |
2000 | |
2001 | if Nkind (Parent (N)) = N_Subprogram_Body | |
2002 | and then List_Containing (N) = Declarations (Parent (N)) | |
2003 | then | |
934a3a25 AC |
2004 | if Operating_Mode /= Generate_Code |
2005 | or else Inside_A_Generic | |
2006 | then | |
beacce02 | 2007 | -- Analyze pragma expression for correctness and for ASIS use |
14037bbc ES |
2008 | |
2009 | Preanalyze_Spec_Expression | |
2010 | (Get_Pragma_Arg (Arg1), Standard_Boolean); | |
8c18a165 AC |
2011 | |
2012 | -- In ASIS mode, for a pragma generated from a source aspect, | |
2013 | -- also analyze the original aspect expression. | |
2014 | ||
2015 | if ASIS_Mode | |
2016 | and then Present (Corresponding_Aspect (N)) | |
2017 | then | |
2018 | Preanalyze_Spec_Expression | |
2019 | (Expression (Corresponding_Aspect (N)), Standard_Boolean); | |
2020 | end if; | |
14037bbc ES |
2021 | end if; |
2022 | ||
21d27997 RD |
2023 | In_Body := True; |
2024 | return; | |
2025 | ||
3023ce42 | 2026 | -- See if it is in the pragmas after a library level subprogram |
21d27997 | 2027 | |
3023ce42 | 2028 | elsif Nkind (Parent (N)) = N_Compilation_Unit_Aux then |
9b20e59b AC |
2029 | |
2030 | -- In formal verification mode, analyze pragma expression for | |
2031 | -- correctness, as it is not expanded later. | |
2032 | ||
56812278 | 2033 | if Alfa_Mode then |
9b20e59b AC |
2034 | Analyze_PPC_In_Decl_Part |
2035 | (N, Defining_Entity (Unit (Parent (Parent (N))))); | |
2036 | end if; | |
2037 | ||
393e63ce RD |
2038 | Chain_PPC (Unit (Parent (Parent (N)))); |
2039 | return; | |
21d27997 | 2040 | end if; |
3023ce42 ES |
2041 | |
2042 | -- If we fall through, pragma was misplaced | |
2043 | ||
2044 | Pragma_Misplaced; | |
21d27997 RD |
2045 | end Check_Precondition_Postcondition; |
2046 | ||
996ae0b0 RK |
2047 | ----------------------------- |
2048 | -- Check_Static_Constraint -- | |
2049 | ----------------------------- | |
2050 | ||
2051 | -- Note: for convenience in writing this procedure, in addition to | |
b3b9865d AC |
2052 | -- the officially (i.e. by spec) allowed argument which is always a |
2053 | -- constraint, it also allows ranges and discriminant associations. | |
fbf5a39b | 2054 | -- Above is not clear ??? |
996ae0b0 RK |
2055 | |
2056 | procedure Check_Static_Constraint (Constr : Node_Id) is | |
2057 | ||
21d27997 RD |
2058 | procedure Require_Static (E : Node_Id); |
2059 | -- Require given expression to be static expression | |
2060 | ||
996ae0b0 RK |
2061 | -------------------- |
2062 | -- Require_Static -- | |
2063 | -------------------- | |
2064 | ||
996ae0b0 RK |
2065 | procedure Require_Static (E : Node_Id) is |
2066 | begin | |
2067 | if not Is_OK_Static_Expression (E) then | |
fbf5a39b AC |
2068 | Flag_Non_Static_Expr |
2069 | ("non-static constraint not allowed in Unchecked_Union!", E); | |
996ae0b0 RK |
2070 | raise Pragma_Exit; |
2071 | end if; | |
2072 | end Require_Static; | |
2073 | ||
2074 | -- Start of processing for Check_Static_Constraint | |
2075 | ||
2076 | begin | |
2077 | case Nkind (Constr) is | |
2078 | when N_Discriminant_Association => | |
2079 | Require_Static (Expression (Constr)); | |
2080 | ||
2081 | when N_Range => | |
2082 | Require_Static (Low_Bound (Constr)); | |
2083 | Require_Static (High_Bound (Constr)); | |
2084 | ||
2085 | when N_Attribute_Reference => | |
2086 | Require_Static (Type_Low_Bound (Etype (Prefix (Constr)))); | |
2087 | Require_Static (Type_High_Bound (Etype (Prefix (Constr)))); | |
2088 | ||
2089 | when N_Range_Constraint => | |
2090 | Check_Static_Constraint (Range_Expression (Constr)); | |
2091 | ||
2092 | when N_Index_Or_Discriminant_Constraint => | |
2093 | declare | |
1d571f3b | 2094 | IDC : Entity_Id; |
996ae0b0 | 2095 | begin |
1d571f3b | 2096 | IDC := First (Constraints (Constr)); |
996ae0b0 RK |
2097 | while Present (IDC) loop |
2098 | Check_Static_Constraint (IDC); | |
2099 | Next (IDC); | |
2100 | end loop; | |
2101 | end; | |
2102 | ||
2103 | when others => | |
2104 | null; | |
2105 | end case; | |
2106 | end Check_Static_Constraint; | |
2107 | ||
dac3bede YM |
2108 | --------------------- |
2109 | -- Check_Test_Case -- | |
2110 | --------------------- | |
2111 | ||
2112 | procedure Check_Test_Case is | |
2113 | P : Node_Id; | |
2114 | PO : Node_Id; | |
2115 | ||
2116 | procedure Chain_TC (PO : Node_Id); | |
5accd7b6 AC |
2117 | -- If PO is a [generic] subprogram declaration node, then the |
2118 | -- test-case applies to this subprogram and the processing for the | |
2119 | -- pragma is completed. Otherwise the pragma is misplaced. | |
dac3bede YM |
2120 | |
2121 | -------------- | |
2122 | -- Chain_TC -- | |
2123 | -------------- | |
2124 | ||
2125 | procedure Chain_TC (PO : Node_Id) is | |
2126 | S : Entity_Id; | |
2127 | ||
2128 | begin | |
2129 | if Nkind (PO) = N_Abstract_Subprogram_Declaration then | |
2130 | if From_Aspect_Specification (N) then | |
2131 | Error_Pragma | |
2132 | ("aspect% cannot be applied to abstract subprogram"); | |
2133 | else | |
2134 | Error_Pragma | |
2135 | ("pragma% cannot be applied to abstract subprogram"); | |
2136 | end if; | |
2137 | ||
5accd7b6 AC |
2138 | elsif Nkind (PO) = N_Entry_Declaration then |
2139 | if From_Aspect_Specification (N) then | |
2140 | Error_Pragma ("aspect% cannot be applied to entry"); | |
2141 | else | |
2142 | Error_Pragma ("pragma% cannot be applied to entry"); | |
2143 | end if; | |
2144 | ||
dac3bede | 2145 | elsif not Nkind_In (PO, N_Subprogram_Declaration, |
5accd7b6 | 2146 | N_Generic_Subprogram_Declaration) |
dac3bede YM |
2147 | then |
2148 | Pragma_Misplaced; | |
2149 | end if; | |
2150 | ||
5accd7b6 | 2151 | -- Here if we have [generic] subprogram declaration |
dac3bede | 2152 | |
5accd7b6 | 2153 | S := Defining_Unit_Name (Specification (PO)); |
dac3bede YM |
2154 | |
2155 | -- Note: we do not analyze the pragma at this point. Instead we | |
2156 | -- delay this analysis until the end of the declarative part in | |
2157 | -- which the pragma appears. This implements the required delay | |
2158 | -- in this analysis, allowing forward references. The analysis | |
2159 | -- happens at the end of Analyze_Declarations. | |
2160 | ||
1bf773bb AC |
2161 | -- There should not be another test case with the same name |
2162 | -- associated to this subprogram. | |
2163 | ||
2164 | declare | |
2165 | Name : constant String_Id := Get_Name_From_Test_Case_Pragma (N); | |
2166 | TC : Node_Id; | |
2167 | ||
2168 | begin | |
2169 | TC := Spec_TC_List (Contract (S)); | |
2170 | while Present (TC) loop | |
2171 | ||
2172 | if String_Equal | |
2173 | (Name, Get_Name_From_Test_Case_Pragma (TC)) | |
2174 | then | |
2175 | Error_Msg_Sloc := Sloc (TC); | |
2176 | ||
2177 | if From_Aspect_Specification (N) then | |
2178 | Error_Pragma ("name for aspect% is already used#"); | |
2179 | else | |
2180 | Error_Pragma ("name for pragma% is already used#"); | |
2181 | end if; | |
2182 | end if; | |
2183 | ||
2184 | TC := Next_Pragma (TC); | |
2185 | end loop; | |
2186 | end; | |
2187 | ||
dac3bede YM |
2188 | -- Chain spec TC pragma to list for subprogram |
2189 | ||
2190 | Set_Next_Pragma (N, Spec_TC_List (Contract (S))); | |
2191 | Set_Spec_TC_List (Contract (S), N); | |
2192 | end Chain_TC; | |
2193 | ||
2194 | -- Start of processing for Check_Test_Case | |
2195 | ||
2196 | begin | |
2197 | if not Is_List_Member (N) then | |
2198 | Pragma_Misplaced; | |
2199 | end if; | |
2200 | ||
5accd7b6 AC |
2201 | -- Test cases should only appear in package spec unit |
2202 | ||
2203 | if Get_Source_Unit (N) = No_Unit | |
2204 | or else not Nkind_In (Sinfo.Unit (Cunit (Get_Source_Unit (N))), | |
2205 | N_Package_Declaration, | |
2206 | N_Generic_Package_Declaration) | |
2207 | then | |
2208 | Pragma_Misplaced; | |
2209 | end if; | |
2210 | ||
dac3bede YM |
2211 | -- Search prior declarations |
2212 | ||
2213 | P := N; | |
2214 | while Present (Prev (P)) loop | |
2215 | P := Prev (P); | |
2216 | ||
2217 | -- If the previous node is a generic subprogram, do not go to to | |
2218 | -- the original node, which is the unanalyzed tree: we need to | |
2219 | -- attach the test-case to the analyzed version at this point. | |
2220 | -- They get propagated to the original tree when analyzing the | |
2221 | -- corresponding body. | |
2222 | ||
2223 | if Nkind (P) not in N_Generic_Declaration then | |
2224 | PO := Original_Node (P); | |
2225 | else | |
2226 | PO := P; | |
2227 | end if; | |
2228 | ||
2229 | -- Skip past prior pragma | |
2230 | ||
2231 | if Nkind (PO) = N_Pragma then | |
2232 | null; | |
2233 | ||
2234 | -- Skip stuff not coming from source | |
2235 | ||
2236 | elsif not Comes_From_Source (PO) then | |
2237 | null; | |
2238 | ||
5accd7b6 AC |
2239 | -- Only remaining possibility is subprogram declaration. First |
2240 | -- check that it is declared directly in a package declaration. | |
2241 | -- This may be either the package declaration for the current unit | |
2242 | -- being defined or a local package declaration. | |
2243 | ||
2244 | elsif not Present (Parent (Parent (PO))) | |
2245 | or else not Present (Parent (Parent (Parent (PO)))) | |
2246 | or else not Nkind_In (Parent (Parent (PO)), | |
2247 | N_Package_Declaration, | |
2248 | N_Generic_Package_Declaration) | |
2249 | then | |
2250 | Pragma_Misplaced; | |
dac3bede YM |
2251 | |
2252 | else | |
2253 | Chain_TC (PO); | |
2254 | return; | |
2255 | end if; | |
2256 | end loop; | |
2257 | ||
dac3bede YM |
2258 | -- If we fall through, pragma was misplaced |
2259 | ||
2260 | Pragma_Misplaced; | |
2261 | end Check_Test_Case; | |
2262 | ||
996ae0b0 RK |
2263 | -------------------------------------- |
2264 | -- Check_Valid_Configuration_Pragma -- | |
2265 | -------------------------------------- | |
2266 | ||
1b24ada5 | 2267 | -- A configuration pragma must appear in the context clause of a |
f3d57416 | 2268 | -- compilation unit, and only other pragmas may precede it. Note that |
1b24ada5 | 2269 | -- the test also allows use in a configuration pragma file. |
996ae0b0 RK |
2270 | |
2271 | procedure Check_Valid_Configuration_Pragma is | |
2272 | begin | |
2273 | if not Is_Configuration_Pragma then | |
2274 | Error_Pragma ("incorrect placement for configuration pragma%"); | |
2275 | end if; | |
2276 | end Check_Valid_Configuration_Pragma; | |
2277 | ||
2278 | ------------------------------------- | |
2279 | -- Check_Valid_Library_Unit_Pragma -- | |
2280 | ------------------------------------- | |
2281 | ||
2282 | procedure Check_Valid_Library_Unit_Pragma is | |
2283 | Plist : List_Id; | |
2284 | Parent_Node : Node_Id; | |
2285 | Unit_Name : Entity_Id; | |
996ae0b0 RK |
2286 | Unit_Kind : Node_Kind; |
2287 | Unit_Node : Node_Id; | |
2288 | Sindex : Source_File_Index; | |
2289 | ||
2290 | begin | |
2291 | if not Is_List_Member (N) then | |
2292 | Pragma_Misplaced; | |
996ae0b0 RK |
2293 | |
2294 | else | |
2295 | Plist := List_Containing (N); | |
2296 | Parent_Node := Parent (Plist); | |
2297 | ||
2298 | if Parent_Node = Empty then | |
2299 | Pragma_Misplaced; | |
2300 | ||
b3b9865d AC |
2301 | -- Case of pragma appearing after a compilation unit. In this case |
2302 | -- it must have an argument with the corresponding name and must | |
2303 | -- be part of the following pragmas of its parent. | |
996ae0b0 RK |
2304 | |
2305 | elsif Nkind (Parent_Node) = N_Compilation_Unit_Aux then | |
2306 | if Plist /= Pragmas_After (Parent_Node) then | |
2307 | Pragma_Misplaced; | |
2308 | ||
2309 | elsif Arg_Count = 0 then | |
2310 | Error_Pragma | |
2311 | ("argument required if outside compilation unit"); | |
2312 | ||
2313 | else | |
2314 | Check_No_Identifiers; | |
2315 | Check_Arg_Count (1); | |
2316 | Unit_Node := Unit (Parent (Parent_Node)); | |
2317 | Unit_Kind := Nkind (Unit_Node); | |
2318 | ||
0f1a6a0b | 2319 | Analyze (Get_Pragma_Arg (Arg1)); |
996ae0b0 | 2320 | |
f02b8bb8 | 2321 | if Unit_Kind = N_Generic_Subprogram_Declaration |
996ae0b0 RK |
2322 | or else Unit_Kind = N_Subprogram_Declaration |
2323 | then | |
2324 | Unit_Name := Defining_Entity (Unit_Node); | |
2325 | ||
f02b8bb8 | 2326 | elsif Unit_Kind in N_Generic_Instantiation then |
996ae0b0 RK |
2327 | Unit_Name := Defining_Entity (Unit_Node); |
2328 | ||
2329 | else | |
2330 | Unit_Name := Cunit_Entity (Current_Sem_Unit); | |
2331 | end if; | |
2332 | ||
2333 | if Chars (Unit_Name) /= | |
0f1a6a0b | 2334 | Chars (Entity (Get_Pragma_Arg (Arg1))) |
996ae0b0 RK |
2335 | then |
2336 | Error_Pragma_Arg | |
2337 | ("pragma% argument is not current unit name", Arg1); | |
2338 | end if; | |
2339 | ||
2340 | if Ekind (Unit_Name) = E_Package | |
2341 | and then Present (Renamed_Entity (Unit_Name)) | |
2342 | then | |
2343 | Error_Pragma ("pragma% not allowed for renamed package"); | |
2344 | end if; | |
2345 | end if; | |
2346 | ||
2347 | -- Pragma appears other than after a compilation unit | |
2348 | ||
2349 | else | |
2350 | -- Here we check for the generic instantiation case and also | |
2351 | -- for the case of processing a generic formal package. We | |
2352 | -- detect these cases by noting that the Sloc on the node | |
2353 | -- does not belong to the current compilation unit. | |
2354 | ||
2355 | Sindex := Source_Index (Current_Sem_Unit); | |
2356 | ||
2357 | if Loc not in Source_First (Sindex) .. Source_Last (Sindex) then | |
2358 | Rewrite (N, Make_Null_Statement (Loc)); | |
2359 | return; | |
2360 | ||
2361 | -- If before first declaration, the pragma applies to the | |
2362 | -- enclosing unit, and the name if present must be this name. | |
2363 | ||
2364 | elsif Is_Before_First_Decl (N, Plist) then | |
2365 | Unit_Node := Unit_Declaration_Node (Current_Scope); | |
2366 | Unit_Kind := Nkind (Unit_Node); | |
2367 | ||
2368 | if Nkind (Parent (Unit_Node)) /= N_Compilation_Unit then | |
2369 | Pragma_Misplaced; | |
2370 | ||
2371 | elsif Unit_Kind = N_Subprogram_Body | |
2372 | and then not Acts_As_Spec (Unit_Node) | |
2373 | then | |
2374 | Pragma_Misplaced; | |
2375 | ||
2376 | elsif Nkind (Parent_Node) = N_Package_Body then | |
2377 | Pragma_Misplaced; | |
2378 | ||
2379 | elsif Nkind (Parent_Node) = N_Package_Specification | |
2380 | and then Plist = Private_Declarations (Parent_Node) | |
2381 | then | |
2382 | Pragma_Misplaced; | |
2383 | ||
2384 | elsif (Nkind (Parent_Node) = N_Generic_Package_Declaration | |
2fa9443e ES |
2385 | or else Nkind (Parent_Node) = |
2386 | N_Generic_Subprogram_Declaration) | |
996ae0b0 RK |
2387 | and then Plist = Generic_Formal_Declarations (Parent_Node) |
2388 | then | |
2389 | Pragma_Misplaced; | |
2390 | ||
2391 | elsif Arg_Count > 0 then | |
0f1a6a0b | 2392 | Analyze (Get_Pragma_Arg (Arg1)); |
996ae0b0 | 2393 | |
0f1a6a0b | 2394 | if Entity (Get_Pragma_Arg (Arg1)) /= Current_Scope then |
996ae0b0 RK |
2395 | Error_Pragma_Arg |
2396 | ("name in pragma% must be enclosing unit", Arg1); | |
2397 | end if; | |
2398 | ||
2399 | -- It is legal to have no argument in this context | |
2400 | ||
2401 | else | |
2402 | return; | |
2403 | end if; | |
2404 | ||
2405 | -- Error if not before first declaration. This is because a | |
2406 | -- library unit pragma argument must be the name of a library | |
2407 | -- unit (RM 10.1.5(7)), but the only names permitted in this | |
2408 | -- context are (RM 10.1.5(6)) names of subprogram declarations, | |
2409 | -- generic subprogram declarations or generic instantiations. | |
2410 | ||
2411 | else | |
2412 | Error_Pragma | |
2413 | ("pragma% misplaced, must be before first declaration"); | |
2414 | end if; | |
2415 | end if; | |
2416 | end if; | |
996ae0b0 RK |
2417 | end Check_Valid_Library_Unit_Pragma; |
2418 | ||
5d09245e AC |
2419 | ------------------- |
2420 | -- Check_Variant -- | |
2421 | ------------------- | |
2422 | ||
72e9f2b9 | 2423 | procedure Check_Variant (Variant : Node_Id; UU_Typ : Entity_Id) is |
5d09245e AC |
2424 | Clist : constant Node_Id := Component_List (Variant); |
2425 | Comp : Node_Id; | |
2426 | ||
2427 | begin | |
5d09245e AC |
2428 | if not Is_Non_Empty_List (Component_Items (Clist)) then |
2429 | Error_Msg_N | |
2430 | ("Unchecked_Union may not have empty component list", | |
2431 | Variant); | |
2432 | return; | |
2433 | end if; | |
2434 | ||
2435 | Comp := First (Component_Items (Clist)); | |
2436 | while Present (Comp) loop | |
72e9f2b9 | 2437 | Check_Component (Comp, UU_Typ, In_Variant_Part => True); |
5d09245e | 2438 | Next (Comp); |
5d09245e AC |
2439 | end loop; |
2440 | end Check_Variant; | |
2441 | ||
996ae0b0 RK |
2442 | ------------------ |
2443 | -- Error_Pragma -- | |
2444 | ------------------ | |
2445 | ||
2446 | procedure Error_Pragma (Msg : String) is | |
0f1a6a0b | 2447 | MsgF : String := Msg; |
996ae0b0 | 2448 | begin |
1b24ada5 | 2449 | Error_Msg_Name_1 := Pname; |
0f1a6a0b AC |
2450 | Fix_Error (MsgF); |
2451 | Error_Msg_N (MsgF, N); | |
996ae0b0 RK |
2452 | raise Pragma_Exit; |
2453 | end Error_Pragma; | |
2454 | ||
2455 | ---------------------- | |
2456 | -- Error_Pragma_Arg -- | |
2457 | ---------------------- | |
2458 | ||
2459 | procedure Error_Pragma_Arg (Msg : String; Arg : Node_Id) is | |
0f1a6a0b | 2460 | MsgF : String := Msg; |
996ae0b0 | 2461 | begin |
1b24ada5 | 2462 | Error_Msg_Name_1 := Pname; |
0f1a6a0b AC |
2463 | Fix_Error (MsgF); |
2464 | Error_Msg_N (MsgF, Get_Pragma_Arg (Arg)); | |
996ae0b0 RK |
2465 | raise Pragma_Exit; |
2466 | end Error_Pragma_Arg; | |
2467 | ||
2468 | procedure Error_Pragma_Arg (Msg1, Msg2 : String; Arg : Node_Id) is | |
0f1a6a0b | 2469 | MsgF : String := Msg1; |
996ae0b0 | 2470 | begin |
1b24ada5 | 2471 | Error_Msg_Name_1 := Pname; |
0f1a6a0b AC |
2472 | Fix_Error (MsgF); |
2473 | Error_Msg_N (MsgF, Get_Pragma_Arg (Arg)); | |
996ae0b0 RK |
2474 | Error_Pragma_Arg (Msg2, Arg); |
2475 | end Error_Pragma_Arg; | |
2476 | ||
2477 | ---------------------------- | |
2478 | -- Error_Pragma_Arg_Ident -- | |
2479 | ---------------------------- | |
2480 | ||
2481 | procedure Error_Pragma_Arg_Ident (Msg : String; Arg : Node_Id) is | |
0f1a6a0b | 2482 | MsgF : String := Msg; |
996ae0b0 | 2483 | begin |
1b24ada5 | 2484 | Error_Msg_Name_1 := Pname; |
0f1a6a0b AC |
2485 | Fix_Error (MsgF); |
2486 | Error_Msg_N (MsgF, Arg); | |
996ae0b0 RK |
2487 | raise Pragma_Exit; |
2488 | end Error_Pragma_Arg_Ident; | |
2489 | ||
b039b10e ST |
2490 | ---------------------- |
2491 | -- Error_Pragma_Ref -- | |
2492 | ---------------------- | |
2493 | ||
2494 | procedure Error_Pragma_Ref (Msg : String; Ref : Entity_Id) is | |
0f1a6a0b | 2495 | MsgF : String := Msg; |
b039b10e ST |
2496 | begin |
2497 | Error_Msg_Name_1 := Pname; | |
0f1a6a0b | 2498 | Fix_Error (MsgF); |
b039b10e | 2499 | Error_Msg_Sloc := Sloc (Ref); |
0f1a6a0b | 2500 | Error_Msg_NE (MsgF, N, Ref); |
b039b10e ST |
2501 | raise Pragma_Exit; |
2502 | end Error_Pragma_Ref; | |
2503 | ||
996ae0b0 RK |
2504 | ------------------------ |
2505 | -- Find_Lib_Unit_Name -- | |
2506 | ------------------------ | |
2507 | ||
2508 | function Find_Lib_Unit_Name return Entity_Id is | |
2509 | begin | |
2510 | -- Return inner compilation unit entity, for case of nested | |
2511 | -- categorization pragmas. This happens in generic unit. | |
2512 | ||
2513 | if Nkind (Parent (N)) = N_Package_Specification | |
2514 | and then Defining_Entity (Parent (N)) /= Current_Scope | |
2515 | then | |
2516 | return Defining_Entity (Parent (N)); | |
996ae0b0 RK |
2517 | else |
2518 | return Current_Scope; | |
2519 | end if; | |
2520 | end Find_Lib_Unit_Name; | |
2521 | ||
2522 | ---------------------------- | |
2523 | -- Find_Program_Unit_Name -- | |
2524 | ---------------------------- | |
2525 | ||
2526 | procedure Find_Program_Unit_Name (Id : Node_Id) is | |
2527 | Unit_Name : Entity_Id; | |
2528 | Unit_Kind : Node_Kind; | |
2529 | P : constant Node_Id := Parent (N); | |
2530 | ||
2531 | begin | |
2532 | if Nkind (P) = N_Compilation_Unit then | |
2533 | Unit_Kind := Nkind (Unit (P)); | |
2534 | ||
2535 | if Unit_Kind = N_Subprogram_Declaration | |
2536 | or else Unit_Kind = N_Package_Declaration | |
2537 | or else Unit_Kind in N_Generic_Declaration | |
2538 | then | |
2539 | Unit_Name := Defining_Entity (Unit (P)); | |
2540 | ||
2541 | if Chars (Id) = Chars (Unit_Name) then | |
2542 | Set_Entity (Id, Unit_Name); | |
2543 | Set_Etype (Id, Etype (Unit_Name)); | |
2544 | else | |
2545 | Set_Etype (Id, Any_Type); | |
2546 | Error_Pragma | |
2547 | ("cannot find program unit referenced by pragma%"); | |
2548 | end if; | |
2549 | ||
2550 | else | |
2551 | Set_Etype (Id, Any_Type); | |
2552 | Error_Pragma ("pragma% inapplicable to this unit"); | |
2553 | end if; | |
2554 | ||
2555 | else | |
2556 | Analyze (Id); | |
2557 | end if; | |
996ae0b0 RK |
2558 | end Find_Program_Unit_Name; |
2559 | ||
d9e0a587 EB |
2560 | ----------------------------------------- |
2561 | -- Find_Unique_Parameterless_Procedure -- | |
2562 | ----------------------------------------- | |
2563 | ||
2564 | function Find_Unique_Parameterless_Procedure | |
2565 | (Name : Entity_Id; | |
2566 | Arg : Node_Id) return Entity_Id | |
2567 | is | |
2568 | Proc : Entity_Id := Empty; | |
2569 | ||
2570 | begin | |
2571 | -- The body of this procedure needs some comments ??? | |
2572 | ||
2573 | if not Is_Entity_Name (Name) then | |
2574 | Error_Pragma_Arg | |
2575 | ("argument of pragma% must be entity name", Arg); | |
2576 | ||
2577 | elsif not Is_Overloaded (Name) then | |
2578 | Proc := Entity (Name); | |
2579 | ||
2580 | if Ekind (Proc) /= E_Procedure | |
8a95f4e8 RD |
2581 | or else Present (First_Formal (Proc)) |
2582 | then | |
d9e0a587 EB |
2583 | Error_Pragma_Arg |
2584 | ("argument of pragma% must be parameterless procedure", Arg); | |
2585 | end if; | |
2586 | ||
2587 | else | |
2588 | declare | |
2589 | Found : Boolean := False; | |
2590 | It : Interp; | |
2591 | Index : Interp_Index; | |
2592 | ||
2593 | begin | |
2594 | Get_First_Interp (Name, Index, It); | |
2595 | while Present (It.Nam) loop | |
2596 | Proc := It.Nam; | |
2597 | ||
2598 | if Ekind (Proc) = E_Procedure | |
2599 | and then No (First_Formal (Proc)) | |
2600 | then | |
2601 | if not Found then | |
2602 | Found := True; | |
2603 | Set_Entity (Name, Proc); | |
2604 | Set_Is_Overloaded (Name, False); | |
2605 | else | |
2606 | Error_Pragma_Arg | |
2607 | ("ambiguous handler name for pragma% ", Arg); | |
2608 | end if; | |
2609 | end if; | |
2610 | ||
2611 | Get_Next_Interp (Index, It); | |
2612 | end loop; | |
2613 | ||
2614 | if not Found then | |
2615 | Error_Pragma_Arg | |
2616 | ("argument of pragma% must be parameterless procedure", | |
2617 | Arg); | |
2618 | else | |
2619 | Proc := Entity (Name); | |
2620 | end if; | |
2621 | end; | |
2622 | end if; | |
2623 | ||
2624 | return Proc; | |
2625 | end Find_Unique_Parameterless_Procedure; | |
2626 | ||
0f1a6a0b AC |
2627 | --------------- |
2628 | -- Fix_Error -- | |
2629 | --------------- | |
2630 | ||
2631 | procedure Fix_Error (Msg : in out String) is | |
2632 | begin | |
2633 | if From_Aspect_Specification (N) then | |
2634 | for J in Msg'First .. Msg'Last - 5 loop | |
2635 | if Msg (J .. J + 5) = "pragma" then | |
2636 | Msg (J .. J + 5) := "aspect"; | |
2637 | end if; | |
2638 | end loop; | |
0f1a6a0b | 2639 | |
811ef5ba RD |
2640 | if Error_Msg_Name_1 = Name_Precondition then |
2641 | Error_Msg_Name_1 := Name_Pre; | |
2642 | elsif Error_Msg_Name_1 = Name_Postcondition then | |
2643 | Error_Msg_Name_1 := Name_Post; | |
2644 | end if; | |
0f1a6a0b AC |
2645 | end if; |
2646 | end Fix_Error; | |
2647 | ||
996ae0b0 RK |
2648 | ------------------------- |
2649 | -- Gather_Associations -- | |
2650 | ------------------------- | |
2651 | ||
2652 | procedure Gather_Associations | |
2653 | (Names : Name_List; | |
2654 | Args : out Args_List) | |
2655 | is | |
2656 | Arg : Node_Id; | |
2657 | ||
2658 | begin | |
2659 | -- Initialize all parameters to Empty | |
2660 | ||
2661 | for J in Args'Range loop | |
2662 | Args (J) := Empty; | |
2663 | end loop; | |
2664 | ||
2665 | -- That's all we have to do if there are no argument associations | |
2666 | ||
2667 | if No (Pragma_Argument_Associations (N)) then | |
2668 | return; | |
2669 | end if; | |
2670 | ||
2671 | -- Otherwise first deal with any positional parameters present | |
2672 | ||
2673 | Arg := First (Pragma_Argument_Associations (N)); | |
996ae0b0 RK |
2674 | for Index in Args'Range loop |
2675 | exit when No (Arg) or else Chars (Arg) /= No_Name; | |
0f1a6a0b | 2676 | Args (Index) := Get_Pragma_Arg (Arg); |
996ae0b0 RK |
2677 | Next (Arg); |
2678 | end loop; | |
2679 | ||
2680 | -- Positional parameters all processed, if any left, then we | |
2681 | -- have too many positional parameters. | |
2682 | ||
2683 | if Present (Arg) and then Chars (Arg) = No_Name then | |
2684 | Error_Pragma_Arg | |
2685 | ("too many positional associations for pragma%", Arg); | |
2686 | end if; | |
2687 | ||
2688 | -- Process named parameters if any are present | |
2689 | ||
2690 | while Present (Arg) loop | |
2691 | if Chars (Arg) = No_Name then | |
2692 | Error_Pragma_Arg | |
2693 | ("positional association cannot follow named association", | |
2694 | Arg); | |
2695 | ||
2696 | else | |
2697 | for Index in Names'Range loop | |
2698 | if Names (Index) = Chars (Arg) then | |
2699 | if Present (Args (Index)) then | |
2700 | Error_Pragma_Arg | |
2701 | ("duplicate argument association for pragma%", Arg); | |
2702 | else | |
0f1a6a0b | 2703 | Args (Index) := Get_Pragma_Arg (Arg); |
996ae0b0 RK |
2704 | exit; |
2705 | end if; | |
2706 | end if; | |
2707 | ||
2708 | if Index = Names'Last then | |
1b24ada5 | 2709 | Error_Msg_Name_1 := Pname; |
07fc65c4 GB |
2710 | Error_Msg_N ("pragma% does not allow & argument", Arg); |
2711 | ||
2712 | -- Check for possible misspelling | |
2713 | ||
2714 | for Index1 in Names'Range loop | |
2715 | if Is_Bad_Spelling_Of | |
470cd9e9 | 2716 | (Chars (Arg), Names (Index1)) |
07fc65c4 GB |
2717 | then |
2718 | Error_Msg_Name_1 := Names (Index1); | |
0c020dde AC |
2719 | Error_Msg_N -- CODEFIX |
2720 | ("\possible misspelling of%", Arg); | |
07fc65c4 GB |
2721 | exit; |
2722 | end if; | |
2723 | end loop; | |
2724 | ||
2725 | raise Pragma_Exit; | |
996ae0b0 RK |
2726 | end if; |
2727 | end loop; | |
2728 | end if; | |
2729 | ||
2730 | Next (Arg); | |
2731 | end loop; | |
2732 | end Gather_Associations; | |
2733 | ||
996ae0b0 RK |
2734 | ----------------- |
2735 | -- GNAT_Pragma -- | |
2736 | ----------------- | |
2737 | ||
2738 | procedure GNAT_Pragma is | |
2739 | begin | |
2740 | Check_Restriction (No_Implementation_Pragmas, N); | |
2741 | end GNAT_Pragma; | |
2742 | ||
2743 | -------------------------- | |
2744 | -- Is_Before_First_Decl -- | |
2745 | -------------------------- | |
2746 | ||
2747 | function Is_Before_First_Decl | |
2748 | (Pragma_Node : Node_Id; | |
a9f4e3d2 | 2749 | Decls : List_Id) return Boolean |
996ae0b0 RK |
2750 | is |
2751 | Item : Node_Id := First (Decls); | |
2752 | ||
2753 | begin | |
2754 | -- Only other pragmas can come before this pragma | |
2755 | ||
2756 | loop | |
2757 | if No (Item) or else Nkind (Item) /= N_Pragma then | |
2758 | return False; | |
2759 | ||
2760 | elsif Item = Pragma_Node then | |
2761 | return True; | |
2762 | end if; | |
2763 | ||
2764 | Next (Item); | |
2765 | end loop; | |
996ae0b0 RK |
2766 | end Is_Before_First_Decl; |
2767 | ||
2768 | ----------------------------- | |
2769 | -- Is_Configuration_Pragma -- | |
2770 | ----------------------------- | |
2771 | ||
1b24ada5 RD |
2772 | -- A configuration pragma must appear in the context clause of a |
2773 | -- compilation unit, and only other pragmas may precede it. Note that | |
2774 | -- the test below also permits use in a configuration pragma file. | |
996ae0b0 RK |
2775 | |
2776 | function Is_Configuration_Pragma return Boolean is | |
2777 | Lis : constant List_Id := List_Containing (N); | |
2778 | Par : constant Node_Id := Parent (N); | |
2779 | Prg : Node_Id; | |
2780 | ||
2781 | begin | |
2782 | -- If no parent, then we are in the configuration pragma file, | |
2783 | -- so the placement is definitely appropriate. | |
2784 | ||
2785 | if No (Par) then | |
2786 | return True; | |
2787 | ||
2788 | -- Otherwise we must be in the context clause of a compilation unit | |
2789 | -- and the only thing allowed before us in the context list is more | |
2790 | -- configuration pragmas. | |
2791 | ||
2792 | elsif Nkind (Par) = N_Compilation_Unit | |
2793 | and then Context_Items (Par) = Lis | |
2794 | then | |
2795 | Prg := First (Lis); | |
2796 | ||
2797 | loop | |
2798 | if Prg = N then | |
2799 | return True; | |
2800 | elsif Nkind (Prg) /= N_Pragma then | |
2801 | return False; | |
2802 | end if; | |
2803 | ||
2804 | Next (Prg); | |
2805 | end loop; | |
2806 | ||
2807 | else | |
2808 | return False; | |
2809 | end if; | |
996ae0b0 RK |
2810 | end Is_Configuration_Pragma; |
2811 | ||
ac9e9918 RD |
2812 | -------------------------- |
2813 | -- Is_In_Context_Clause -- | |
2814 | -------------------------- | |
2815 | ||
2816 | function Is_In_Context_Clause return Boolean is | |
2817 | Plist : List_Id; | |
2818 | Parent_Node : Node_Id; | |
2819 | ||
2820 | begin | |
2821 | if not Is_List_Member (N) then | |
2822 | return False; | |
2823 | ||
2824 | else | |
2825 | Plist := List_Containing (N); | |
2826 | Parent_Node := Parent (Plist); | |
2827 | ||
2828 | if Parent_Node = Empty | |
2829 | or else Nkind (Parent_Node) /= N_Compilation_Unit | |
2830 | or else Context_Items (Parent_Node) /= Plist | |
2831 | then | |
2832 | return False; | |
2833 | end if; | |
2834 | end if; | |
2835 | ||
2836 | return True; | |
2837 | end Is_In_Context_Clause; | |
2838 | ||
2839 | --------------------------------- | |
2840 | -- Is_Static_String_Expression -- | |
2841 | --------------------------------- | |
2842 | ||
2843 | function Is_Static_String_Expression (Arg : Node_Id) return Boolean is | |
2844 | Argx : constant Node_Id := Get_Pragma_Arg (Arg); | |
2845 | ||
2846 | begin | |
2847 | Analyze_And_Resolve (Argx); | |
2848 | return Is_OK_Static_Expression (Argx) | |
2849 | and then Nkind (Argx) = N_String_Literal; | |
2850 | end Is_Static_String_Expression; | |
2851 | ||
996ae0b0 RK |
2852 | ---------------------- |
2853 | -- Pragma_Misplaced -- | |
2854 | ---------------------- | |
2855 | ||
2856 | procedure Pragma_Misplaced is | |
2857 | begin | |
2858 | Error_Pragma ("incorrect placement of pragma%"); | |
2859 | end Pragma_Misplaced; | |
2860 | ||
2861 | ------------------------------------ | |
2862 | -- Process Atomic_Shared_Volatile -- | |
2863 | ------------------------------------ | |
2864 | ||
2865 | procedure Process_Atomic_Shared_Volatile is | |
2866 | E_Id : Node_Id; | |
2867 | E : Entity_Id; | |
2868 | D : Node_Id; | |
2869 | K : Node_Kind; | |
07fc65c4 | 2870 | Utyp : Entity_Id; |
996ae0b0 | 2871 | |
0da2c8ac | 2872 | procedure Set_Atomic (E : Entity_Id); |
21d27997 RD |
2873 | -- Set given type as atomic, and if no explicit alignment was given, |
2874 | -- set alignment to unknown, since back end knows what the alignment | |
2875 | -- requirements are for atomic arrays. Note: this step is necessary | |
2876 | -- for derived types. | |
0da2c8ac AC |
2877 | |
2878 | ---------------- | |
2879 | -- Set_Atomic -- | |
2880 | ---------------- | |
2881 | ||
2882 | procedure Set_Atomic (E : Entity_Id) is | |
2883 | begin | |
eaba57fb | 2884 | Set_Is_Atomic (E); |
0da2c8ac | 2885 | |
eaba57fb | 2886 | if not Has_Alignment_Clause (E) then |
0da2c8ac AC |
2887 | Set_Alignment (E, Uint_0); |
2888 | end if; | |
2889 | end Set_Atomic; | |
2890 | ||
2891 | -- Start of processing for Process_Atomic_Shared_Volatile | |
2892 | ||
996ae0b0 | 2893 | begin |
996ae0b0 RK |
2894 | Check_Ada_83_Warning; |
2895 | Check_No_Identifiers; | |
2896 | Check_Arg_Count (1); | |
2897 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 2898 | E_Id := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
2899 | |
2900 | if Etype (E_Id) = Any_Type then | |
2901 | return; | |
2902 | end if; | |
2903 | ||
2904 | E := Entity (E_Id); | |
2905 | D := Declaration_Node (E); | |
2906 | K := Nkind (D); | |
2907 | ||
af31bffb AC |
2908 | -- Check duplicate before we chain ourselves! |
2909 | ||
2910 | Check_Duplicate_Pragma (E); | |
2911 | ||
2912 | -- Now check appropriateness of the entity | |
2913 | ||
996ae0b0 RK |
2914 | if Is_Type (E) then |
2915 | if Rep_Item_Too_Early (E, N) | |
2916 | or else | |
2917 | Rep_Item_Too_Late (E, N) | |
2918 | then | |
2919 | return; | |
2920 | else | |
2921 | Check_First_Subtype (Arg1); | |
2922 | end if; | |
2923 | ||
2924 | if Prag_Id /= Pragma_Volatile then | |
0da2c8ac AC |
2925 | Set_Atomic (E); |
2926 | Set_Atomic (Underlying_Type (E)); | |
2927 | Set_Atomic (Base_Type (E)); | |
996ae0b0 RK |
2928 | end if; |
2929 | ||
21d27997 RD |
2930 | -- Attribute belongs on the base type. If the view of the type is |
2931 | -- currently private, it also belongs on the underlying type. | |
fbf5a39b | 2932 | |
eaba57fb RD |
2933 | Set_Is_Volatile (Base_Type (E)); |
2934 | Set_Is_Volatile (Underlying_Type (E)); | |
996ae0b0 | 2935 | |
eaba57fb RD |
2936 | Set_Treat_As_Volatile (E); |
2937 | Set_Treat_As_Volatile (Underlying_Type (E)); | |
fbf5a39b | 2938 | |
996ae0b0 RK |
2939 | elsif K = N_Object_Declaration |
2940 | or else (K = N_Component_Declaration | |
2941 | and then Original_Record_Component (E) = E) | |
2942 | then | |
2943 | if Rep_Item_Too_Late (E, N) then | |
2944 | return; | |
2945 | end if; | |
2946 | ||
2947 | if Prag_Id /= Pragma_Volatile then | |
eaba57fb | 2948 | Set_Is_Atomic (E); |
07fc65c4 | 2949 | |
21d27997 RD |
2950 | -- If the object declaration has an explicit initialization, a |
2951 | -- temporary may have to be created to hold the expression, to | |
2952 | -- ensure that access to the object remain atomic. | |
fbf5a39b AC |
2953 | |
2954 | if Nkind (Parent (E)) = N_Object_Declaration | |
2955 | and then Present (Expression (Parent (E))) | |
2956 | then | |
2957 | Set_Has_Delayed_Freeze (E); | |
2958 | end if; | |
2959 | ||
b3b9865d AC |
2960 | -- An interesting improvement here. If an object of type X is |
2961 | -- declared atomic, and the type X is not atomic, that's a | |
2962 | -- pity, since it may not have appropriate alignment etc. We | |
2963 | -- can rescue this in the special case where the object and | |
2964 | -- type are in the same unit by just setting the type as | |
2965 | -- atomic, so that the back end will process it as atomic. | |
07fc65c4 GB |
2966 | |
2967 | Utyp := Underlying_Type (Etype (E)); | |
2968 | ||
2969 | if Present (Utyp) | |
2970 | and then Sloc (E) > No_Location | |
2971 | and then Sloc (Utyp) > No_Location | |
2972 | and then | |
2973 | Get_Source_File_Index (Sloc (E)) = | |
2974 | Get_Source_File_Index (Sloc (Underlying_Type (Etype (E)))) | |
2975 | then | |
eaba57fb | 2976 | Set_Is_Atomic (Underlying_Type (Etype (E))); |
07fc65c4 | 2977 | end if; |
996ae0b0 RK |
2978 | end if; |
2979 | ||
2980 | Set_Is_Volatile (E); | |
fbf5a39b | 2981 | Set_Treat_As_Volatile (E); |
996ae0b0 RK |
2982 | |
2983 | else | |
2984 | Error_Pragma_Arg | |
2985 | ("inappropriate entity for pragma%", Arg1); | |
2986 | end if; | |
2987 | end Process_Atomic_Shared_Volatile; | |
2988 | ||
874a0341 RD |
2989 | ------------------------------------------- |
2990 | -- Process_Compile_Time_Warning_Or_Error -- | |
2991 | ------------------------------------------- | |
2992 | ||
2993 | procedure Process_Compile_Time_Warning_Or_Error is | |
2994 | Arg1x : constant Node_Id := Get_Pragma_Arg (Arg1); | |
2995 | ||
2996 | begin | |
874a0341 RD |
2997 | Check_Arg_Count (2); |
2998 | Check_No_Identifiers; | |
2999 | Check_Arg_Is_Static_Expression (Arg2, Standard_String); | |
3000 | Analyze_And_Resolve (Arg1x, Standard_Boolean); | |
3001 | ||
3002 | if Compile_Time_Known_Value (Arg1x) then | |
3003 | if Is_True (Expr_Value (Get_Pragma_Arg (Arg1))) then | |
3004 | declare | |
3005 | Str : constant String_Id := | |
3006 | Strval (Get_Pragma_Arg (Arg2)); | |
3007 | Len : constant Int := String_Length (Str); | |
3008 | Cont : Boolean; | |
3009 | Ptr : Nat; | |
3010 | CC : Char_Code; | |
3011 | C : Character; | |
1b24ada5 RD |
3012 | Cent : constant Entity_Id := |
3013 | Cunit_Entity (Current_Sem_Unit); | |
3014 | ||
3015 | Force : constant Boolean := | |
3016 | Prag_Id = Pragma_Compile_Time_Warning | |
3017 | and then | |
3018 | Is_Spec_Name (Unit_Name (Current_Sem_Unit)) | |
3019 | and then (Ekind (Cent) /= E_Package | |
3020 | or else not In_Private_Part (Cent)); | |
3021 | -- Set True if this is the warning case, and we are in the | |
3022 | -- visible part of a package spec, or in a subprogram spec, | |
3023 | -- in which case we want to force the client to see the | |
3024 | -- warning, even though it is not in the main unit. | |
874a0341 RD |
3025 | |
3026 | begin | |
b3b9865d AC |
3027 | -- Loop through segments of message separated by line feeds. |
3028 | -- We output these segments as separate messages with | |
3029 | -- continuation marks for all but the first. | |
874a0341 | 3030 | |
1b24ada5 RD |
3031 | Cont := False; |
3032 | Ptr := 1; | |
874a0341 RD |
3033 | loop |
3034 | Error_Msg_Strlen := 0; | |
3035 | ||
b3b9865d AC |
3036 | -- Loop to copy characters from argument to error message |
3037 | -- string buffer. | |
874a0341 RD |
3038 | |
3039 | loop | |
3040 | exit when Ptr > Len; | |
3041 | CC := Get_String_Char (Str, Ptr); | |
3042 | Ptr := Ptr + 1; | |
3043 | ||
3044 | -- Ignore wide chars ??? else store character | |
3045 | ||
3046 | if In_Character_Range (CC) then | |
3047 | C := Get_Character (CC); | |
3048 | exit when C = ASCII.LF; | |
3049 | Error_Msg_Strlen := Error_Msg_Strlen + 1; | |
3050 | Error_Msg_String (Error_Msg_Strlen) := C; | |
3051 | end if; | |
3052 | end loop; | |
3053 | ||
3054 | -- Here with one line ready to go | |
3055 | ||
3056 | Error_Msg_Warn := Prag_Id = Pragma_Compile_Time_Warning; | |
3057 | ||
1b24ada5 RD |
3058 | -- If this is a warning in a spec, then we want clients |
3059 | -- to see the warning, so mark the message with the | |
3060 | -- special sequence !! to force the warning. In the case | |
3061 | -- of a package spec, we do not force this if we are in | |
3062 | -- the private part of the spec. | |
3063 | ||
3064 | if Force then | |
3065 | if Cont = False then | |
3066 | Error_Msg_N ("<~!!", Arg1); | |
3067 | Cont := True; | |
3068 | else | |
3069 | Error_Msg_N ("\<~!!", Arg1); | |
3070 | end if; | |
3071 | ||
3072 | -- Error, rather than warning, or in a body, so we do not | |
3073 | -- need to force visibility for client (error will be | |
3074 | -- output in any case, and this is the situation in which | |
3075 | -- we do not want a client to get a warning, since the | |
0b89eea8 | 3076 | -- warning is in the body or the spec private part). |
1b24ada5 | 3077 | |
874a0341 | 3078 | else |
1b24ada5 RD |
3079 | if Cont = False then |
3080 | Error_Msg_N ("<~", Arg1); | |
3081 | Cont := True; | |
3082 | else | |
3083 | Error_Msg_N ("\<~", Arg1); | |
3084 | end if; | |
874a0341 RD |
3085 | end if; |
3086 | ||
3087 | exit when Ptr > Len; | |
3088 | end loop; | |
3089 | end; | |
3090 | end if; | |
3091 | end if; | |
3092 | end Process_Compile_Time_Warning_Or_Error; | |
3093 | ||
996ae0b0 RK |
3094 | ------------------------ |
3095 | -- Process_Convention -- | |
3096 | ------------------------ | |
3097 | ||
3098 | procedure Process_Convention | |
9fe2f33e AC |
3099 | (C : out Convention_Id; |
3100 | Ent : out Entity_Id) | |
996ae0b0 RK |
3101 | is |
3102 | Id : Node_Id; | |
9fe2f33e | 3103 | E : Entity_Id; |
996ae0b0 | 3104 | E1 : Entity_Id; |
996ae0b0 | 3105 | Cname : Name_Id; |
7324bf49 | 3106 | Comp_Unit : Unit_Number_Type; |
996ae0b0 | 3107 | |
c28408b7 RD |
3108 | procedure Diagnose_Multiple_Pragmas (S : Entity_Id); |
3109 | -- Called if we have more than one Export/Import/Convention pragma. | |
3110 | -- This is generally illegal, but we have a special case of allowing | |
3111 | -- Import and Interface to coexist if they specify the convention in | |
3112 | -- a consistent manner. We are allowed to do this, since Interface is | |
3113 | -- an implementation defined pragma, and we choose to do it since we | |
3114 | -- know Rational allows this combination. S is the entity id of the | |
3115 | -- subprogram in question. This procedure also sets the special flag | |
3116 | -- Import_Interface_Present in both pragmas in the case where we do | |
3117 | -- have matching Import and Interface pragmas. | |
3118 | ||
996ae0b0 RK |
3119 | procedure Set_Convention_From_Pragma (E : Entity_Id); |
3120 | -- Set convention in entity E, and also flag that the entity has a | |
3121 | -- convention pragma. If entity is for a private or incomplete type, | |
3122 | -- also set convention and flag on underlying type. This procedure | |
3123 | -- also deals with the special case of C_Pass_By_Copy convention. | |
3124 | ||
c28408b7 RD |
3125 | ------------------------------- |
3126 | -- Diagnose_Multiple_Pragmas -- | |
3127 | ------------------------------- | |
3128 | ||
3129 | procedure Diagnose_Multiple_Pragmas (S : Entity_Id) is | |
3130 | Pdec : constant Node_Id := Declaration_Node (S); | |
3131 | Decl : Node_Id; | |
3132 | Err : Boolean; | |
3133 | ||
3134 | function Same_Convention (Decl : Node_Id) return Boolean; | |
3135 | -- Decl is a pragma node. This function returns True if this | |
3136 | -- pragma has a first argument that is an identifier with a | |
3137 | -- Chars field corresponding to the Convention_Id C. | |
3138 | ||
3139 | function Same_Name (Decl : Node_Id) return Boolean; | |
3140 | -- Decl is a pragma node. This function returns True if this | |
3141 | -- pragma has a second argument that is an identifier with a | |
3142 | -- Chars field that matches the Chars of the current subprogram. | |
3143 | ||
3144 | --------------------- | |
3145 | -- Same_Convention -- | |
3146 | --------------------- | |
3147 | ||
3148 | function Same_Convention (Decl : Node_Id) return Boolean is | |
3149 | Arg1 : constant Node_Id := | |
3150 | First (Pragma_Argument_Associations (Decl)); | |
3151 | ||
3152 | begin | |
3153 | if Present (Arg1) then | |
3154 | declare | |
3155 | Arg : constant Node_Id := Get_Pragma_Arg (Arg1); | |
3156 | begin | |
3157 | if Nkind (Arg) = N_Identifier | |
3158 | and then Is_Convention_Name (Chars (Arg)) | |
3159 | and then Get_Convention_Id (Chars (Arg)) = C | |
3160 | then | |
3161 | return True; | |
3162 | end if; | |
3163 | end; | |
3164 | end if; | |
3165 | ||
3166 | return False; | |
3167 | end Same_Convention; | |
3168 | ||
3169 | --------------- | |
3170 | -- Same_Name -- | |
3171 | --------------- | |
3172 | ||
3173 | function Same_Name (Decl : Node_Id) return Boolean is | |
3174 | Arg1 : constant Node_Id := | |
3175 | First (Pragma_Argument_Associations (Decl)); | |
3176 | Arg2 : Node_Id; | |
3177 | ||
3178 | begin | |
3179 | if No (Arg1) then | |
3180 | return False; | |
3181 | end if; | |
3182 | ||
3183 | Arg2 := Next (Arg1); | |
3184 | ||
3185 | if No (Arg2) then | |
3186 | return False; | |
3187 | end if; | |
3188 | ||
3189 | declare | |
3190 | Arg : constant Node_Id := Get_Pragma_Arg (Arg2); | |
3191 | begin | |
3192 | if Nkind (Arg) = N_Identifier | |
3193 | and then Chars (Arg) = Chars (S) | |
3194 | then | |
3195 | return True; | |
3196 | end if; | |
3197 | end; | |
3198 | ||
3199 | return False; | |
3200 | end Same_Name; | |
3201 | ||
3202 | -- Start of processing for Diagnose_Multiple_Pragmas | |
3203 | ||
3204 | begin | |
3205 | Err := True; | |
3206 | ||
3207 | -- Definitely give message if we have Convention/Export here | |
3208 | ||
3209 | if Prag_Id = Pragma_Convention or else Prag_Id = Pragma_Export then | |
3210 | null; | |
3211 | ||
3212 | -- If we have an Import or Export, scan back from pragma to | |
3213 | -- find any previous pragma applying to the same procedure. | |
3214 | -- The scan will be terminated by the start of the list, or | |
3215 | -- hitting the subprogram declaration. This won't allow one | |
3216 | -- pragma to appear in the public part and one in the private | |
3217 | -- part, but that seems very unlikely in practice. | |
3218 | ||
3219 | else | |
3220 | Decl := Prev (N); | |
3221 | while Present (Decl) and then Decl /= Pdec loop | |
3222 | ||
3223 | -- Look for pragma with same name as us | |
3224 | ||
3225 | if Nkind (Decl) = N_Pragma | |
3226 | and then Same_Name (Decl) | |
3227 | then | |
3228 | -- Give error if same as our pragma or Export/Convention | |
3229 | ||
3230 | if Pragma_Name (Decl) = Name_Export | |
3231 | or else | |
3232 | Pragma_Name (Decl) = Name_Convention | |
3233 | or else | |
3234 | Pragma_Name (Decl) = Pragma_Name (N) | |
3235 | then | |
3236 | exit; | |
3237 | ||
3238 | -- Case of Import/Interface or the other way round | |
3239 | ||
3240 | elsif Pragma_Name (Decl) = Name_Interface | |
3241 | or else | |
3242 | Pragma_Name (Decl) = Name_Import | |
3243 | then | |
3244 | -- Here we know that we have Import and Interface. It | |
3245 | -- doesn't matter which way round they are. See if | |
3246 | -- they specify the same convention. If so, all OK, | |
3247 | -- and set special flags to stop other messages | |
3248 | ||
3249 | if Same_Convention (Decl) then | |
3250 | Set_Import_Interface_Present (N); | |
3251 | Set_Import_Interface_Present (Decl); | |
3252 | Err := False; | |
3253 | ||
3254 | -- If different conventions, special message | |
3255 | ||
3256 | else | |
3257 | Error_Msg_Sloc := Sloc (Decl); | |
3258 | Error_Pragma_Arg | |
3259 | ("convention differs from that given#", Arg1); | |
3260 | return; | |
3261 | end if; | |
3262 | end if; | |
3263 | end if; | |
3264 | ||
3265 | Next (Decl); | |
3266 | end loop; | |
3267 | end if; | |
3268 | ||
3269 | -- Give message if needed if we fall through those tests | |
3270 | ||
3271 | if Err then | |
3272 | Error_Pragma_Arg | |
3273 | ("at most one Convention/Export/Import pragma is allowed", | |
3274 | Arg2); | |
3275 | end if; | |
3276 | end Diagnose_Multiple_Pragmas; | |
3277 | ||
996ae0b0 RK |
3278 | -------------------------------- |
3279 | -- Set_Convention_From_Pragma -- | |
3280 | -------------------------------- | |
3281 | ||
3282 | procedure Set_Convention_From_Pragma (E : Entity_Id) is | |
3283 | begin | |
ac9e9918 RD |
3284 | -- Ada 2005 (AI-430): Check invalid attempt to change convention |
3285 | -- for an overridden dispatching operation. Technically this is | |
c690a2ec RD |
3286 | -- an amendment and should only be done in Ada 2005 mode. However, |
3287 | -- this is clearly a mistake, since the problem that is addressed | |
3288 | -- by this AI is that there is a clear gap in the RM! | |
57193e09 TQ |
3289 | |
3290 | if Is_Dispatching_Operation (E) | |
3291 | and then Present (Overridden_Operation (E)) | |
3292 | and then C /= Convention (Overridden_Operation (E)) | |
3293 | then | |
3294 | Error_Pragma_Arg | |
3295 | ("cannot change convention for " & | |
3296 | "overridden dispatching operation", | |
3297 | Arg1); | |
3298 | end if; | |
3299 | ||
3300 | -- Set the convention | |
3301 | ||
996ae0b0 RK |
3302 | Set_Convention (E, C); |
3303 | Set_Has_Convention_Pragma (E); | |
3304 | ||
15b682ca GB |
3305 | if Is_Incomplete_Or_Private_Type (E) |
3306 | and then Present (Underlying_Type (E)) | |
3307 | then | |
996ae0b0 RK |
3308 | Set_Convention (Underlying_Type (E), C); |
3309 | Set_Has_Convention_Pragma (Underlying_Type (E), True); | |
3310 | end if; | |
3311 | ||
b3b9865d AC |
3312 | -- A class-wide type should inherit the convention of the specific |
3313 | -- root type (although this isn't specified clearly by the RM). | |
996ae0b0 RK |
3314 | |
3315 | if Is_Type (E) and then Present (Class_Wide_Type (E)) then | |
3316 | Set_Convention (Class_Wide_Type (E), C); | |
3317 | end if; | |
3318 | ||
c690a2ec RD |
3319 | -- If the entity is a record type, then check for special case of |
3320 | -- C_Pass_By_Copy, which is treated the same as C except that the | |
3321 | -- special record flag is set. This convention is only permitted | |
3322 | -- on record types (see AI95-00131). | |
996ae0b0 RK |
3323 | |
3324 | if Cname = Name_C_Pass_By_Copy then | |
3325 | if Is_Record_Type (E) then | |
3326 | Set_C_Pass_By_Copy (Base_Type (E)); | |
3327 | elsif Is_Incomplete_Or_Private_Type (E) | |
3328 | and then Is_Record_Type (Underlying_Type (E)) | |
3329 | then | |
3330 | Set_C_Pass_By_Copy (Base_Type (Underlying_Type (E))); | |
3331 | else | |
3332 | Error_Pragma_Arg | |
3333 | ("C_Pass_By_Copy convention allowed only for record type", | |
3334 | Arg2); | |
3335 | end if; | |
3336 | end if; | |
3337 | ||
b3b9865d AC |
3338 | -- If the entity is a derived boolean type, check for the special |
3339 | -- case of convention C, C++, or Fortran, where we consider any | |
3340 | -- nonzero value to represent true. | |
996ae0b0 RK |
3341 | |
3342 | if Is_Discrete_Type (E) | |
3343 | and then Root_Type (Etype (E)) = Standard_Boolean | |
3344 | and then | |
3345 | (C = Convention_C | |
3346 | or else | |
3347 | C = Convention_CPP | |
3348 | or else | |
3349 | C = Convention_Fortran) | |
3350 | then | |
3351 | Set_Nonzero_Is_True (Base_Type (E)); | |
3352 | end if; | |
3353 | end Set_Convention_From_Pragma; | |
3354 | ||
3355 | -- Start of processing for Process_Convention | |
3356 | ||
3357 | begin | |
3358 | Check_At_Least_N_Arguments (2); | |
996ae0b0 | 3359 | Check_Optional_Identifier (Arg1, Name_Convention); |
59e5fbe0 | 3360 | Check_Arg_Is_Identifier (Arg1); |
0f1a6a0b | 3361 | Cname := Chars (Get_Pragma_Arg (Arg1)); |
996ae0b0 | 3362 | |
b3b9865d AC |
3363 | -- C_Pass_By_Copy is treated as a synonym for convention C (this is |
3364 | -- tested again below to set the critical flag). | |
23b86353 | 3365 | |
996ae0b0 RK |
3366 | if Cname = Name_C_Pass_By_Copy then |
3367 | C := Convention_C; | |
3368 | ||
3369 | -- Otherwise we must have something in the standard convention list | |
3370 | ||
3371 | elsif Is_Convention_Name (Cname) then | |
0f1a6a0b | 3372 | C := Get_Convention_Id (Chars (Get_Pragma_Arg (Arg1))); |
996ae0b0 | 3373 | |
c690a2ec RD |
3374 | -- In DEC VMS, it seems that there is an undocumented feature that |
3375 | -- any unrecognized convention is treated as the default, which for | |
3376 | -- us is convention C. It does not seem so terrible to do this | |
3377 | -- unconditionally, silently in the VMS case, and with a warning | |
3378 | -- in the non-VMS case. | |
996ae0b0 RK |
3379 | |
3380 | else | |
fbf5a39b | 3381 | if Warn_On_Export_Import and not OpenVMS_On_Target then |
ed2233dc | 3382 | Error_Msg_N |
996ae0b0 | 3383 | ("?unrecognized convention name, C assumed", |
0f1a6a0b | 3384 | Get_Pragma_Arg (Arg1)); |
996ae0b0 RK |
3385 | end if; |
3386 | ||
3387 | C := Convention_C; | |
3388 | end if; | |
3389 | ||
996ae0b0 | 3390 | Check_Optional_Identifier (Arg2, Name_Entity); |
59e5fbe0 | 3391 | Check_Arg_Is_Local_Name (Arg2); |
996ae0b0 | 3392 | |
0f1a6a0b | 3393 | Id := Get_Pragma_Arg (Arg2); |
996ae0b0 RK |
3394 | Analyze (Id); |
3395 | ||
3396 | if not Is_Entity_Name (Id) then | |
3397 | Error_Pragma_Arg ("entity name required", Arg2); | |
3398 | end if; | |
3399 | ||
3400 | E := Entity (Id); | |
3401 | ||
9fe2f33e AC |
3402 | -- Set entity to return |
3403 | ||
3404 | Ent := E; | |
3405 | ||
e917aec2 RD |
3406 | -- Ada_Pass_By_Copy special checking |
3407 | ||
3408 | if C = Convention_Ada_Pass_By_Copy then | |
3409 | if not Is_First_Subtype (E) then | |
3410 | Error_Pragma_Arg | |
3411 | ("convention `Ada_Pass_By_Copy` only " | |
3412 | & "allowed for types", Arg2); | |
3413 | end if; | |
3414 | ||
3415 | if Is_By_Reference_Type (E) then | |
3416 | Error_Pragma_Arg | |
3417 | ("convention `Ada_Pass_By_Copy` not allowed for " | |
3418 | & "by-reference type", Arg1); | |
3419 | end if; | |
3420 | end if; | |
3421 | ||
3422 | -- Ada_Pass_By_Reference special checking | |
3423 | ||
3424 | if C = Convention_Ada_Pass_By_Reference then | |
3425 | if not Is_First_Subtype (E) then | |
3426 | Error_Pragma_Arg | |
3427 | ("convention `Ada_Pass_By_Reference` only " | |
3428 | & "allowed for types", Arg2); | |
3429 | end if; | |
3430 | ||
3431 | if Is_By_Copy_Type (E) then | |
3432 | Error_Pragma_Arg | |
3433 | ("convention `Ada_Pass_By_Reference` not allowed for " | |
3434 | & "by-copy type", Arg1); | |
3435 | end if; | |
3436 | end if; | |
3437 | ||
c690a2ec RD |
3438 | -- Go to renamed subprogram if present, since convention applies to |
3439 | -- the actual renamed entity, not to the renaming entity. If the | |
3440 | -- subprogram is inherited, go to parent subprogram. | |
996ae0b0 RK |
3441 | |
3442 | if Is_Subprogram (E) | |
3443 | and then Present (Alias (E)) | |
996ae0b0 | 3444 | then |
2fa9443e ES |
3445 | if Nkind (Parent (Declaration_Node (E))) = |
3446 | N_Subprogram_Renaming_Declaration | |
c71c53a8 | 3447 | then |
b039b10e ST |
3448 | if Scope (E) /= Scope (Alias (E)) then |
3449 | Error_Pragma_Ref | |
c27f2f15 | 3450 | ("cannot apply pragma% to non-local entity&#", E); |
b039b10e | 3451 | end if; |
c27f2f15 | 3452 | |
c71c53a8 ES |
3453 | E := Alias (E); |
3454 | ||
f2131422 JM |
3455 | elsif Nkind_In (Parent (E), N_Full_Type_Declaration, |
3456 | N_Private_Extension_Declaration) | |
c71c53a8 ES |
3457 | and then Scope (E) = Scope (Alias (E)) |
3458 | then | |
3459 | E := Alias (E); | |
9fe2f33e AC |
3460 | |
3461 | -- Return the parent subprogram the entity was inherited from | |
3462 | ||
3463 | Ent := E; | |
c71c53a8 | 3464 | end if; |
996ae0b0 RK |
3465 | end if; |
3466 | ||
c71c53a8 | 3467 | -- Check that we are not applying this to a specless body |
996ae0b0 RK |
3468 | |
3469 | if Is_Subprogram (E) | |
3470 | and then Nkind (Parent (Declaration_Node (E))) = N_Subprogram_Body | |
3471 | then | |
3472 | Error_Pragma | |
3473 | ("pragma% requires separate spec and must come before body"); | |
3474 | end if; | |
3475 | ||
3476 | -- Check that we are not applying this to a named constant | |
3477 | ||
8a95f4e8 | 3478 | if Ekind_In (E, E_Named_Integer, E_Named_Real) then |
1b24ada5 | 3479 | Error_Msg_Name_1 := Pname; |
996ae0b0 RK |
3480 | Error_Msg_N |
3481 | ("cannot apply pragma% to named constant!", | |
3482 | Get_Pragma_Arg (Arg2)); | |
3483 | Error_Pragma_Arg | |
3484 | ("\supply appropriate type for&!", Arg2); | |
3485 | end if; | |
3486 | ||
66beb09b ST |
3487 | if Ekind (E) = E_Enumeration_Literal then |
3488 | Error_Pragma ("enumeration literal not allowed for pragma%"); | |
3489 | end if; | |
3490 | ||
470cd9e9 RD |
3491 | -- Check for rep item appearing too early or too late |
3492 | ||
996ae0b0 RK |
3493 | if Etype (E) = Any_Type |
3494 | or else Rep_Item_Too_Early (E, N) | |
3495 | then | |
3496 | raise Pragma_Exit; | |
15b682ca GB |
3497 | |
3498 | elsif Present (Underlying_Type (E)) then | |
996ae0b0 RK |
3499 | E := Underlying_Type (E); |
3500 | end if; | |
3501 | ||
3502 | if Rep_Item_Too_Late (E, N) then | |
3503 | raise Pragma_Exit; | |
3504 | end if; | |
3505 | ||
3506 | if Has_Convention_Pragma (E) then | |
c28408b7 | 3507 | Diagnose_Multiple_Pragmas (E); |
996ae0b0 RK |
3508 | |
3509 | elsif Convention (E) = Convention_Protected | |
3510 | or else Ekind (Scope (E)) = E_Protected_Type | |
3511 | then | |
3512 | Error_Pragma_Arg | |
3513 | ("a protected operation cannot be given a different convention", | |
3514 | Arg2); | |
3515 | end if; | |
3516 | ||
3517 | -- For Intrinsic, a subprogram is required | |
3518 | ||
3519 | if C = Convention_Intrinsic | |
3520 | and then not Is_Subprogram (E) | |
3521 | and then not Is_Generic_Subprogram (E) | |
3522 | then | |
3523 | Error_Pragma_Arg | |
3524 | ("second argument of pragma% must be a subprogram", Arg2); | |
3525 | end if; | |
3526 | ||
3527 | -- For Stdcall, a subprogram, variable or subprogram type is required | |
3528 | ||
3529 | if C = Convention_Stdcall | |
3530 | and then not Is_Subprogram (E) | |
3531 | and then not Is_Generic_Subprogram (E) | |
3532 | and then Ekind (E) /= E_Variable | |
3533 | and then not | |
3534 | (Is_Access_Type (E) | |
e074d476 | 3535 | and then Ekind (Designated_Type (E)) = E_Subprogram_Type) |
996ae0b0 RK |
3536 | then |
3537 | Error_Pragma_Arg | |
3538 | ("second argument of pragma% must be subprogram (type)", | |
3539 | Arg2); | |
3540 | end if; | |
3541 | ||
3542 | if not Is_Subprogram (E) | |
3543 | and then not Is_Generic_Subprogram (E) | |
3544 | then | |
3545 | Set_Convention_From_Pragma (E); | |
3546 | ||
3547 | if Is_Type (E) then | |
996ae0b0 RK |
3548 | Check_First_Subtype (Arg2); |
3549 | Set_Convention_From_Pragma (Base_Type (E)); | |
3550 | ||
3551 | -- For subprograms, we must set the convention on the | |
3552 | -- internally generated directly designated type as well. | |
3553 | ||
3554 | if Ekind (E) = E_Access_Subprogram_Type then | |
3555 | Set_Convention_From_Pragma (Directly_Designated_Type (E)); | |
3556 | end if; | |
3557 | end if; | |
3558 | ||
3559 | -- For the subprogram case, set proper convention for all homonyms | |
7324bf49 AC |
3560 | -- in same scope and the same declarative part, i.e. the same |
3561 | -- compilation unit. | |
996ae0b0 RK |
3562 | |
3563 | else | |
7324bf49 | 3564 | Comp_Unit := Get_Source_Unit (E); |
996ae0b0 RK |
3565 | Set_Convention_From_Pragma (E); |
3566 | ||
d9e0a587 | 3567 | -- Treat a pragma Import as an implicit body, for GPS use |
fbf5a39b AC |
3568 | |
3569 | if Prag_Id = Pragma_Import then | |
874a0341 | 3570 | Generate_Reference (E, Id, 'b'); |
fbf5a39b AC |
3571 | end if; |
3572 | ||
9fe2f33e AC |
3573 | -- Loop through the homonyms of the pragma argument's entity |
3574 | ||
3575 | E1 := Ent; | |
996ae0b0 RK |
3576 | loop |
3577 | E1 := Homonym (E1); | |
3578 | exit when No (E1) or else Scope (E1) /= Current_Scope; | |
3579 | ||
b3b9865d AC |
3580 | -- Do not set the pragma on inherited operations or on formal |
3581 | -- subprograms. | |
21d27997 | 3582 | |
2820d220 | 3583 | if Comes_From_Source (E1) |
7324bf49 | 3584 | and then Comp_Unit = Get_Source_Unit (E1) |
21d27997 | 3585 | and then not Is_Formal_Subprogram (E1) |
2820d220 | 3586 | and then Nkind (Original_Node (Parent (E1))) /= |
f2131422 | 3587 | N_Full_Type_Declaration |
2820d220 | 3588 | then |
b039b10e ST |
3589 | if Present (Alias (E1)) |
3590 | and then Scope (E1) /= Scope (Alias (E1)) | |
3591 | then | |
3592 | Error_Pragma_Ref | |
c27f2f15 RD |
3593 | ("cannot apply pragma% to non-local entity& declared#", |
3594 | E1); | |
b039b10e | 3595 | end if; |
c27f2f15 | 3596 | |
996ae0b0 | 3597 | Set_Convention_From_Pragma (E1); |
fbf5a39b AC |
3598 | |
3599 | if Prag_Id = Pragma_Import then | |
9fe2f33e | 3600 | Generate_Reference (E1, Id, 'b'); |
fbf5a39b | 3601 | end if; |
996ae0b0 | 3602 | end if; |
0f1a6a0b AC |
3603 | |
3604 | -- For aspect case, do NOT apply to homonyms | |
3605 | ||
3606 | exit when From_Aspect_Specification (N); | |
996ae0b0 RK |
3607 | end loop; |
3608 | end if; | |
996ae0b0 RK |
3609 | end Process_Convention; |
3610 | ||
12b4d338 AC |
3611 | ---------------------------------------- |
3612 | -- Process_Disable_Enable_Atomic_Sync -- | |
3613 | ---------------------------------------- | |
3614 | ||
3615 | procedure Process_Disable_Enable_Atomic_Sync (Nam : Name_Id) is | |
3616 | begin | |
3617 | GNAT_Pragma; | |
3618 | Check_No_Identifiers; | |
3619 | Check_At_Most_N_Arguments (1); | |
3620 | ||
3621 | -- Modeled internally as | |
3622 | -- pragma Unsuppress (Atomic_Synchronization [,Entity]) | |
3623 | ||
3624 | Rewrite (N, | |
3625 | Make_Pragma (Loc, | |
3626 | Pragma_Identifier => | |
3627 | Make_Identifier (Loc, Nam), | |
3628 | Pragma_Argument_Associations => New_List ( | |
3629 | Make_Pragma_Argument_Association (Loc, | |
3630 | Expression => | |
3631 | Make_Identifier (Loc, Name_Atomic_Synchronization))))); | |
3632 | ||
3633 | if Present (Arg1) then | |
3634 | Append_To (Pragma_Argument_Associations (N), New_Copy (Arg1)); | |
3635 | end if; | |
3636 | ||
3637 | Analyze (N); | |
3638 | end Process_Disable_Enable_Atomic_Sync; | |
3639 | ||
996ae0b0 RK |
3640 | ----------------------------------------------------- |
3641 | -- Process_Extended_Import_Export_Exception_Pragma -- | |
3642 | ----------------------------------------------------- | |
3643 | ||
3644 | procedure Process_Extended_Import_Export_Exception_Pragma | |
3645 | (Arg_Internal : Node_Id; | |
3646 | Arg_External : Node_Id; | |
3647 | Arg_Form : Node_Id; | |
3648 | Arg_Code : Node_Id) | |
3649 | is | |
3650 | Def_Id : Entity_Id; | |
3651 | Code_Val : Uint; | |
3652 | ||
3653 | begin | |
fbf5a39b AC |
3654 | if not OpenVMS_On_Target then |
3655 | Error_Pragma | |
3656 | ("?pragma% ignored (applies only to Open'V'M'S)"); | |
3657 | end if; | |
3658 | ||
996ae0b0 RK |
3659 | Process_Extended_Import_Export_Internal_Arg (Arg_Internal); |
3660 | Def_Id := Entity (Arg_Internal); | |
3661 | ||
3662 | if Ekind (Def_Id) /= E_Exception then | |
3663 | Error_Pragma_Arg | |
3664 | ("pragma% must refer to declared exception", Arg_Internal); | |
3665 | end if; | |
3666 | ||
3667 | Set_Extended_Import_Export_External_Name (Def_Id, Arg_External); | |
3668 | ||
3669 | if Present (Arg_Form) then | |
3670 | Check_Arg_Is_One_Of (Arg_Form, Name_Ada, Name_VMS); | |
3671 | end if; | |
3672 | ||
3673 | if Present (Arg_Form) | |
3674 | and then Chars (Arg_Form) = Name_Ada | |
3675 | then | |
3676 | null; | |
3677 | else | |
3678 | Set_Is_VMS_Exception (Def_Id); | |
3679 | Set_Exception_Code (Def_Id, No_Uint); | |
3680 | end if; | |
3681 | ||
3682 | if Present (Arg_Code) then | |
3683 | if not Is_VMS_Exception (Def_Id) then | |
3684 | Error_Pragma_Arg | |
3685 | ("Code option for pragma% not allowed for Ada case", | |
3686 | Arg_Code); | |
3687 | end if; | |
3688 | ||
3689 | Check_Arg_Is_Static_Expression (Arg_Code, Any_Integer); | |
3690 | Code_Val := Expr_Value (Arg_Code); | |
3691 | ||
3692 | if not UI_Is_In_Int_Range (Code_Val) then | |
3693 | Error_Pragma_Arg | |
3694 | ("Code option for pragma% must be in 32-bit range", | |
3695 | Arg_Code); | |
3696 | ||
3697 | else | |
3698 | Set_Exception_Code (Def_Id, Code_Val); | |
3699 | end if; | |
3700 | end if; | |
996ae0b0 RK |
3701 | end Process_Extended_Import_Export_Exception_Pragma; |
3702 | ||
3703 | ------------------------------------------------- | |
3704 | -- Process_Extended_Import_Export_Internal_Arg -- | |
3705 | ------------------------------------------------- | |
3706 | ||
3707 | procedure Process_Extended_Import_Export_Internal_Arg | |
3708 | (Arg_Internal : Node_Id := Empty) | |
3709 | is | |
3710 | begin | |
996ae0b0 RK |
3711 | if No (Arg_Internal) then |
3712 | Error_Pragma ("Internal parameter required for pragma%"); | |
3713 | end if; | |
3714 | ||
3715 | if Nkind (Arg_Internal) = N_Identifier then | |
3716 | null; | |
3717 | ||
3718 | elsif Nkind (Arg_Internal) = N_Operator_Symbol | |
3719 | and then (Prag_Id = Pragma_Import_Function | |
3720 | or else | |
3721 | Prag_Id = Pragma_Export_Function) | |
3722 | then | |
3723 | null; | |
3724 | ||
3725 | else | |
3726 | Error_Pragma_Arg | |
3727 | ("wrong form for Internal parameter for pragma%", Arg_Internal); | |
3728 | end if; | |
3729 | ||
3730 | Check_Arg_Is_Local_Name (Arg_Internal); | |
996ae0b0 RK |
3731 | end Process_Extended_Import_Export_Internal_Arg; |
3732 | ||
3733 | -------------------------------------------------- | |
3734 | -- Process_Extended_Import_Export_Object_Pragma -- | |
3735 | -------------------------------------------------- | |
3736 | ||
3737 | procedure Process_Extended_Import_Export_Object_Pragma | |
3738 | (Arg_Internal : Node_Id; | |
3739 | Arg_External : Node_Id; | |
3740 | Arg_Size : Node_Id) | |
3741 | is | |
fbf5a39b | 3742 | Def_Id : Entity_Id; |
996ae0b0 RK |
3743 | |
3744 | begin | |
3745 | Process_Extended_Import_Export_Internal_Arg (Arg_Internal); | |
3746 | Def_Id := Entity (Arg_Internal); | |
3747 | ||
8a95f4e8 | 3748 | if not Ekind_In (Def_Id, E_Constant, E_Variable) then |
996ae0b0 RK |
3749 | Error_Pragma_Arg |
3750 | ("pragma% must designate an object", Arg_Internal); | |
3751 | end if; | |
3752 | ||
1d571f3b AC |
3753 | if Has_Rep_Pragma (Def_Id, Name_Common_Object) |
3754 | or else | |
3755 | Has_Rep_Pragma (Def_Id, Name_Psect_Object) | |
3756 | then | |
996ae0b0 | 3757 | Error_Pragma_Arg |
1d571f3b | 3758 | ("previous Common/Psect_Object applies, pragma % not permitted", |
996ae0b0 RK |
3759 | Arg_Internal); |
3760 | end if; | |
3761 | ||
3762 | if Rep_Item_Too_Late (Def_Id, N) then | |
3763 | raise Pragma_Exit; | |
3764 | end if; | |
3765 | ||
3766 | Set_Extended_Import_Export_External_Name (Def_Id, Arg_External); | |
3767 | ||
cc335f43 AC |
3768 | if Present (Arg_Size) then |
3769 | Check_Arg_Is_External_Name (Arg_Size); | |
996ae0b0 RK |
3770 | end if; |
3771 | ||
3772 | -- Export_Object case | |
3773 | ||
3774 | if Prag_Id = Pragma_Export_Object then | |
996ae0b0 RK |
3775 | if not Is_Library_Level_Entity (Def_Id) then |
3776 | Error_Pragma_Arg | |
3777 | ("argument for pragma% must be library level entity", | |
3778 | Arg_Internal); | |
3779 | end if; | |
3780 | ||
3781 | if Ekind (Current_Scope) = E_Generic_Package then | |
3782 | Error_Pragma ("pragma& cannot appear in a generic unit"); | |
3783 | end if; | |
3784 | ||
3785 | if not Size_Known_At_Compile_Time (Etype (Def_Id)) then | |
3786 | Error_Pragma_Arg | |
3787 | ("exported object must have compile time known size", | |
3788 | Arg_Internal); | |
3789 | end if; | |
3790 | ||
fbf5a39b | 3791 | if Warn_On_Export_Import and then Is_Exported (Def_Id) then |
5afaf827 | 3792 | Error_Msg_N ("?duplicate Export_Object pragma", N); |
996ae0b0 RK |
3793 | else |
3794 | Set_Exported (Def_Id, Arg_Internal); | |
3795 | end if; | |
3796 | ||
3797 | -- Import_Object case | |
3798 | ||
3799 | else | |
3800 | if Is_Concurrent_Type (Etype (Def_Id)) then | |
3801 | Error_Pragma_Arg | |
3802 | ("cannot use pragma% for task/protected object", | |
3803 | Arg_Internal); | |
3804 | end if; | |
3805 | ||
3806 | if Ekind (Def_Id) = E_Constant then | |
3807 | Error_Pragma_Arg | |
3808 | ("cannot import a constant", Arg_Internal); | |
3809 | end if; | |
3810 | ||
fbf5a39b AC |
3811 | if Warn_On_Export_Import |
3812 | and then Has_Discriminants (Etype (Def_Id)) | |
3813 | then | |
996ae0b0 RK |
3814 | Error_Msg_N |
3815 | ("imported value must be initialized?", Arg_Internal); | |
3816 | end if; | |
3817 | ||
fbf5a39b AC |
3818 | if Warn_On_Export_Import |
3819 | and then Is_Access_Type (Etype (Def_Id)) | |
3820 | then | |
996ae0b0 RK |
3821 | Error_Pragma_Arg |
3822 | ("cannot import object of an access type?", Arg_Internal); | |
3823 | end if; | |
3824 | ||
fbf5a39b AC |
3825 | if Warn_On_Export_Import |
3826 | and then Is_Imported (Def_Id) | |
3827 | then | |
996ae0b0 RK |
3828 | Error_Msg_N |
3829 | ("?duplicate Import_Object pragma", N); | |
fbf5a39b AC |
3830 | |
3831 | -- Check for explicit initialization present. Note that an | |
5afaf827 AC |
3832 | -- initialization generated by the code generator, e.g. for an |
3833 | -- access type, does not count here. | |
fbf5a39b AC |
3834 | |
3835 | elsif Present (Expression (Parent (Def_Id))) | |
3836 | and then | |
3837 | Comes_From_Source | |
3838 | (Original_Node (Expression (Parent (Def_Id)))) | |
3839 | then | |
3840 | Error_Msg_Sloc := Sloc (Def_Id); | |
3841 | Error_Pragma_Arg | |
c690a2ec RD |
3842 | ("imported entities cannot be initialized (RM B.1(24))", |
3843 | "\no initialization allowed for & declared#", Arg1); | |
996ae0b0 RK |
3844 | else |
3845 | Set_Imported (Def_Id); | |
21d27997 | 3846 | Note_Possible_Modification (Arg_Internal, Sure => False); |
996ae0b0 RK |
3847 | end if; |
3848 | end if; | |
996ae0b0 RK |
3849 | end Process_Extended_Import_Export_Object_Pragma; |
3850 | ||
3851 | ------------------------------------------------------ | |
3852 | -- Process_Extended_Import_Export_Subprogram_Pragma -- | |
3853 | ------------------------------------------------------ | |
3854 | ||
3855 | procedure Process_Extended_Import_Export_Subprogram_Pragma | |
3856 | (Arg_Internal : Node_Id; | |
3857 | Arg_External : Node_Id; | |
3858 | Arg_Parameter_Types : Node_Id; | |
3859 | Arg_Result_Type : Node_Id := Empty; | |
3860 | Arg_Mechanism : Node_Id; | |
3861 | Arg_Result_Mechanism : Node_Id := Empty; | |
3862 | Arg_First_Optional_Parameter : Node_Id := Empty) | |
3863 | is | |
3864 | Ent : Entity_Id; | |
3865 | Def_Id : Entity_Id; | |
3866 | Hom_Id : Entity_Id; | |
3867 | Formal : Entity_Id; | |
3868 | Ambiguous : Boolean; | |
3869 | Match : Boolean; | |
3870 | Dval : Node_Id; | |
3871 | ||
fbf5a39b AC |
3872 | function Same_Base_Type |
3873 | (Ptype : Node_Id; | |
a9f4e3d2 | 3874 | Formal : Entity_Id) return Boolean; |
b3b9865d AC |
3875 | -- Determines if Ptype references the type of Formal. Note that only |
3876 | -- the base types need to match according to the spec. Ptype here is | |
3877 | -- the argument from the pragma, which is either a type name, or an | |
3878 | -- access attribute. | |
fbf5a39b AC |
3879 | |
3880 | -------------------- | |
3881 | -- Same_Base_Type -- | |
3882 | -------------------- | |
996ae0b0 | 3883 | |
a9f4e3d2 AC |
3884 | function Same_Base_Type |
3885 | (Ptype : Node_Id; | |
3886 | Formal : Entity_Id) return Boolean | |
3887 | is | |
fbf5a39b AC |
3888 | Ftyp : constant Entity_Id := Base_Type (Etype (Formal)); |
3889 | Pref : Node_Id; | |
3890 | ||
996ae0b0 | 3891 | begin |
fbf5a39b | 3892 | -- Case where pragma argument is typ'Access |
996ae0b0 | 3893 | |
fbf5a39b AC |
3894 | if Nkind (Ptype) = N_Attribute_Reference |
3895 | and then Attribute_Name (Ptype) = Name_Access | |
996ae0b0 | 3896 | then |
fbf5a39b AC |
3897 | Pref := Prefix (Ptype); |
3898 | Find_Type (Pref); | |
3899 | ||
3900 | if not Is_Entity_Name (Pref) | |
3901 | or else Entity (Pref) = Any_Type | |
3902 | then | |
3903 | raise Pragma_Exit; | |
3904 | end if; | |
3905 | ||
3906 | -- We have a match if the corresponding argument is of an | |
b3b9865d AC |
3907 | -- anonymous access type, and its designated type matches the |
3908 | -- type of the prefix of the access attribute | |
fbf5a39b AC |
3909 | |
3910 | return Ekind (Ftyp) = E_Anonymous_Access_Type | |
3911 | and then Base_Type (Entity (Pref)) = | |
3912 | Base_Type (Etype (Designated_Type (Ftyp))); | |
3913 | ||
3914 | -- Case where pragma argument is a type name | |
3915 | ||
3916 | else | |
3917 | Find_Type (Ptype); | |
3918 | ||
3919 | if not Is_Entity_Name (Ptype) | |
3920 | or else Entity (Ptype) = Any_Type | |
3921 | then | |
3922 | raise Pragma_Exit; | |
3923 | end if; | |
996ae0b0 | 3924 | |
b3b9865d AC |
3925 | -- We have a match if the corresponding argument is of the type |
3926 | -- given in the pragma (comparing base types) | |
fbf5a39b AC |
3927 | |
3928 | return Base_Type (Entity (Ptype)) = Ftyp; | |
3929 | end if; | |
996ae0b0 RK |
3930 | end Same_Base_Type; |
3931 | ||
3932 | -- Start of processing for | |
3933 | -- Process_Extended_Import_Export_Subprogram_Pragma | |
3934 | ||
3935 | begin | |
3936 | Process_Extended_Import_Export_Internal_Arg (Arg_Internal); | |
996ae0b0 RK |
3937 | Ent := Empty; |
3938 | Ambiguous := False; | |
3939 | ||
1d571f3b | 3940 | -- Loop through homonyms (overloadings) of the entity |
996ae0b0 | 3941 | |
1d571f3b | 3942 | Hom_Id := Entity (Arg_Internal); |
996ae0b0 RK |
3943 | while Present (Hom_Id) loop |
3944 | Def_Id := Get_Base_Subprogram (Hom_Id); | |
3945 | ||
3946 | -- We need a subprogram in the current scope | |
3947 | ||
3948 | if not Is_Subprogram (Def_Id) | |
3949 | or else Scope (Def_Id) /= Current_Scope | |
3950 | then | |
3951 | null; | |
3952 | ||
3953 | else | |
3954 | Match := True; | |
3955 | ||
3956 | -- Pragma cannot apply to subprogram body | |
3957 | ||
3958 | if Is_Subprogram (Def_Id) | |
f2131422 JM |
3959 | and then Nkind (Parent (Declaration_Node (Def_Id))) = |
3960 | N_Subprogram_Body | |
996ae0b0 RK |
3961 | then |
3962 | Error_Pragma | |
3963 | ("pragma% requires separate spec" | |
3964 | & " and must come before body"); | |
3965 | end if; | |
3966 | ||
3967 | -- Test result type if given, note that the result type | |
3968 | -- parameter can only be present for the function cases. | |
3969 | ||
3970 | if Present (Arg_Result_Type) | |
3971 | and then not Same_Base_Type (Arg_Result_Type, Def_Id) | |
3972 | then | |
3973 | Match := False; | |
3974 | ||
fbf5a39b AC |
3975 | elsif Etype (Def_Id) /= Standard_Void_Type |
3976 | and then | |
1b24ada5 RD |
3977 | (Pname = Name_Export_Procedure |
3978 | or else | |
3979 | Pname = Name_Import_Procedure) | |
fbf5a39b AC |
3980 | then |
3981 | Match := False; | |
3982 | ||
996ae0b0 RK |
3983 | -- Test parameter types if given. Note that this parameter |
3984 | -- has not been analyzed (and must not be, since it is | |
3985 | -- semantic nonsense), so we get it as the parser left it. | |
3986 | ||
3987 | elsif Present (Arg_Parameter_Types) then | |
3988 | Check_Matching_Types : declare | |
3989 | Formal : Entity_Id; | |
3990 | Ptype : Node_Id; | |
3991 | ||
3992 | begin | |
3993 | Formal := First_Formal (Def_Id); | |
3994 | ||
3995 | if Nkind (Arg_Parameter_Types) = N_Null then | |
3996 | if Present (Formal) then | |
3997 | Match := False; | |
3998 | end if; | |
3999 | ||
4000 | -- A list of one type, e.g. (List) is parsed as | |
4001 | -- a parenthesized expression. | |
4002 | ||
4003 | elsif Nkind (Arg_Parameter_Types) /= N_Aggregate | |
4004 | and then Paren_Count (Arg_Parameter_Types) = 1 | |
4005 | then | |
4006 | if No (Formal) | |
4007 | or else Present (Next_Formal (Formal)) | |
4008 | then | |
4009 | Match := False; | |
4010 | else | |
4011 | Match := | |
4012 | Same_Base_Type (Arg_Parameter_Types, Formal); | |
4013 | end if; | |
4014 | ||
4015 | -- A list of more than one type is parsed as a aggregate | |
4016 | ||
4017 | elsif Nkind (Arg_Parameter_Types) = N_Aggregate | |
4018 | and then Paren_Count (Arg_Parameter_Types) = 0 | |
4019 | then | |
4020 | Ptype := First (Expressions (Arg_Parameter_Types)); | |
996ae0b0 RK |
4021 | while Present (Ptype) or else Present (Formal) loop |
4022 | if No (Ptype) | |
4023 | or else No (Formal) | |
4024 | or else not Same_Base_Type (Ptype, Formal) | |
4025 | then | |
4026 | Match := False; | |
4027 | exit; | |
4028 | else | |
4029 | Next_Formal (Formal); | |
4030 | Next (Ptype); | |
4031 | end if; | |
4032 | end loop; | |
4033 | ||
4034 | -- Anything else is of the wrong form | |
4035 | ||
4036 | else | |
4037 | Error_Pragma_Arg | |
4038 | ("wrong form for Parameter_Types parameter", | |
4039 | Arg_Parameter_Types); | |
4040 | end if; | |
4041 | end Check_Matching_Types; | |
4042 | end if; | |
4043 | ||
4044 | -- Match is now False if the entry we found did not match | |
4045 | -- either a supplied Parameter_Types or Result_Types argument | |
4046 | ||
4047 | if Match then | |
4048 | if No (Ent) then | |
4049 | Ent := Def_Id; | |
4050 | ||
4051 | -- Ambiguous case, the flag Ambiguous shows if we already | |
4052 | -- detected this and output the initial messages. | |
4053 | ||
4054 | else | |
4055 | if not Ambiguous then | |
4056 | Ambiguous := True; | |
1b24ada5 | 4057 | Error_Msg_Name_1 := Pname; |
996ae0b0 RK |
4058 | Error_Msg_N |
4059 | ("pragma% does not uniquely identify subprogram!", | |
4060 | N); | |
4061 | Error_Msg_Sloc := Sloc (Ent); | |
4062 | Error_Msg_N ("matching subprogram #!", N); | |
4063 | Ent := Empty; | |
4064 | end if; | |
4065 | ||
4066 | Error_Msg_Sloc := Sloc (Def_Id); | |
4067 | Error_Msg_N ("matching subprogram #!", N); | |
4068 | end if; | |
4069 | end if; | |
4070 | end if; | |
4071 | ||
4072 | Hom_Id := Homonym (Hom_Id); | |
4073 | end loop; | |
4074 | ||
4075 | -- See if we found an entry | |
4076 | ||
4077 | if No (Ent) then | |
4078 | if not Ambiguous then | |
4079 | if Is_Generic_Subprogram (Entity (Arg_Internal)) then | |
4080 | Error_Pragma | |
4081 | ("pragma% cannot be given for generic subprogram"); | |
996ae0b0 RK |
4082 | else |
4083 | Error_Pragma | |
4084 | ("pragma% does not identify local subprogram"); | |
4085 | end if; | |
4086 | end if; | |
4087 | ||
4088 | return; | |
4089 | end if; | |
4090 | ||
16b05213 | 4091 | -- Import pragmas must be for imported entities |
996ae0b0 | 4092 | |
fbf5a39b AC |
4093 | if Prag_Id = Pragma_Import_Function |
4094 | or else | |
4095 | Prag_Id = Pragma_Import_Procedure | |
4096 | or else | |
4097 | Prag_Id = Pragma_Import_Valued_Procedure | |
996ae0b0 RK |
4098 | then |
4099 | if not Is_Imported (Ent) then | |
ed2233dc | 4100 | Error_Pragma |
996ae0b0 RK |
4101 | ("pragma Import or Interface must precede pragma%"); |
4102 | end if; | |
4103 | ||
fbf5a39b AC |
4104 | -- Here we have the Export case which can set the entity as exported |
4105 | ||
c690a2ec RD |
4106 | -- But does not do so if the specified external name is null, since |
4107 | -- that is taken as a signal in DEC Ada 83 (with which we want to be | |
4108 | -- compatible) to request no external name. | |
fbf5a39b AC |
4109 | |
4110 | elsif Nkind (Arg_External) = N_String_Literal | |
4111 | and then String_Length (Strval (Arg_External)) = 0 | |
4112 | then | |
4113 | null; | |
4114 | ||
f3d57416 | 4115 | -- In all other cases, set entity as exported |
996ae0b0 RK |
4116 | |
4117 | else | |
4118 | Set_Exported (Ent, Arg_Internal); | |
4119 | end if; | |
4120 | ||
4121 | -- Special processing for Valued_Procedure cases | |
4122 | ||
4123 | if Prag_Id = Pragma_Import_Valued_Procedure | |
4124 | or else | |
4125 | Prag_Id = Pragma_Export_Valued_Procedure | |
4126 | then | |
4127 | Formal := First_Formal (Ent); | |
4128 | ||
4129 | if No (Formal) then | |
5afaf827 | 4130 | Error_Pragma ("at least one parameter required for pragma%"); |
996ae0b0 RK |
4131 | |
4132 | elsif Ekind (Formal) /= E_Out_Parameter then | |
5afaf827 | 4133 | Error_Pragma ("first parameter must have mode out for pragma%"); |
996ae0b0 RK |
4134 | |
4135 | else | |
4136 | Set_Is_Valued_Procedure (Ent); | |
4137 | end if; | |
4138 | end if; | |
4139 | ||
4140 | Set_Extended_Import_Export_External_Name (Ent, Arg_External); | |
4141 | ||
4142 | -- Process Result_Mechanism argument if present. We have already | |
4143 | -- checked that this is only allowed for the function case. | |
4144 | ||
4145 | if Present (Arg_Result_Mechanism) then | |
4146 | Set_Mechanism_Value (Ent, Arg_Result_Mechanism); | |
4147 | end if; | |
4148 | ||
4149 | -- Process Mechanism parameter if present. Note that this parameter | |
4150 | -- is not analyzed, and must not be analyzed since it is semantic | |
4151 | -- nonsense, so we get it in exactly as the parser left it. | |
4152 | ||
4153 | if Present (Arg_Mechanism) then | |
996ae0b0 RK |
4154 | declare |
4155 | Formal : Entity_Id; | |
4156 | Massoc : Node_Id; | |
4157 | Mname : Node_Id; | |
4158 | Choice : Node_Id; | |
4159 | ||
4160 | begin | |
4161 | -- A single mechanism association without a formal parameter | |
4162 | -- name is parsed as a parenthesized expression. All other | |
4163 | -- cases are parsed as aggregates, so we rewrite the single | |
4164 | -- parameter case as an aggregate for consistency. | |
4165 | ||
4166 | if Nkind (Arg_Mechanism) /= N_Aggregate | |
4167 | and then Paren_Count (Arg_Mechanism) = 1 | |
4168 | then | |
4169 | Rewrite (Arg_Mechanism, | |
4170 | Make_Aggregate (Sloc (Arg_Mechanism), | |
4171 | Expressions => New_List ( | |
4172 | Relocate_Node (Arg_Mechanism)))); | |
4173 | end if; | |
4174 | ||
4175 | -- Case of only mechanism name given, applies to all formals | |
4176 | ||
4177 | if Nkind (Arg_Mechanism) /= N_Aggregate then | |
4178 | Formal := First_Formal (Ent); | |
4179 | while Present (Formal) loop | |
4180 | Set_Mechanism_Value (Formal, Arg_Mechanism); | |
4181 | Next_Formal (Formal); | |
4182 | end loop; | |
4183 | ||
4184 | -- Case of list of mechanism associations given | |
4185 | ||
4186 | else | |
4187 | if Null_Record_Present (Arg_Mechanism) then | |
4188 | Error_Pragma_Arg | |
4189 | ("inappropriate form for Mechanism parameter", | |
4190 | Arg_Mechanism); | |
4191 | end if; | |
4192 | ||
4193 | -- Deal with positional ones first | |
4194 | ||
4195 | Formal := First_Formal (Ent); | |
2c9beb8a | 4196 | |
996ae0b0 RK |
4197 | if Present (Expressions (Arg_Mechanism)) then |
4198 | Mname := First (Expressions (Arg_Mechanism)); | |
996ae0b0 RK |
4199 | while Present (Mname) loop |
4200 | if No (Formal) then | |
4201 | Error_Pragma_Arg | |
4202 | ("too many mechanism associations", Mname); | |
4203 | end if; | |
4204 | ||
4205 | Set_Mechanism_Value (Formal, Mname); | |
4206 | Next_Formal (Formal); | |
4207 | Next (Mname); | |
4208 | end loop; | |
4209 | end if; | |
4210 | ||
4211 | -- Deal with named entries | |
4212 | ||
4213 | if Present (Component_Associations (Arg_Mechanism)) then | |
4214 | Massoc := First (Component_Associations (Arg_Mechanism)); | |
996ae0b0 RK |
4215 | while Present (Massoc) loop |
4216 | Choice := First (Choices (Massoc)); | |
4217 | ||
4218 | if Nkind (Choice) /= N_Identifier | |
4219 | or else Present (Next (Choice)) | |
4220 | then | |
4221 | Error_Pragma_Arg | |
4222 | ("incorrect form for mechanism association", | |
4223 | Massoc); | |
4224 | end if; | |
4225 | ||
4226 | Formal := First_Formal (Ent); | |
4227 | loop | |
4228 | if No (Formal) then | |
4229 | Error_Pragma_Arg | |
4230 | ("parameter name & not present", Choice); | |
4231 | end if; | |
4232 | ||
4233 | if Chars (Choice) = Chars (Formal) then | |
4234 | Set_Mechanism_Value | |
4235 | (Formal, Expression (Massoc)); | |
bf8b6bfc | 4236 | |
beacce02 | 4237 | -- Set entity on identifier (needed by ASIS) |
a168f519 | 4238 | |
bf8b6bfc SR |
4239 | Set_Entity (Choice, Formal); |
4240 | ||
996ae0b0 RK |
4241 | exit; |
4242 | end if; | |
4243 | ||
4244 | Next_Formal (Formal); | |
4245 | end loop; | |
4246 | ||
4247 | Next (Massoc); | |
4248 | end loop; | |
4249 | end if; | |
4250 | end if; | |
4251 | end; | |
4252 | end if; | |
4253 | ||
4254 | -- Process First_Optional_Parameter argument if present. We have | |
4255 | -- already checked that this is only allowed for the Import case. | |
4256 | ||
4257 | if Present (Arg_First_Optional_Parameter) then | |
4258 | if Nkind (Arg_First_Optional_Parameter) /= N_Identifier then | |
4259 | Error_Pragma_Arg | |
4260 | ("first optional parameter must be formal parameter name", | |
4261 | Arg_First_Optional_Parameter); | |
4262 | end if; | |
4263 | ||
4264 | Formal := First_Formal (Ent); | |
4265 | loop | |
4266 | if No (Formal) then | |
4267 | Error_Pragma_Arg | |
4268 | ("specified formal parameter& not found", | |
4269 | Arg_First_Optional_Parameter); | |
4270 | end if; | |
4271 | ||
4272 | exit when Chars (Formal) = | |
4273 | Chars (Arg_First_Optional_Parameter); | |
4274 | ||
4275 | Next_Formal (Formal); | |
4276 | end loop; | |
4277 | ||
4278 | Set_First_Optional_Parameter (Ent, Formal); | |
4279 | ||
4280 | -- Check specified and all remaining formals have right form | |
4281 | ||
4282 | while Present (Formal) loop | |
4283 | if Ekind (Formal) /= E_In_Parameter then | |
4284 | Error_Msg_NE | |
4285 | ("optional formal& is not of mode in!", | |
4286 | Arg_First_Optional_Parameter, Formal); | |
4287 | ||
4288 | else | |
4289 | Dval := Default_Value (Formal); | |
4290 | ||
57193e09 | 4291 | if No (Dval) then |
996ae0b0 RK |
4292 | Error_Msg_NE |
4293 | ("optional formal& does not have default value!", | |
4294 | Arg_First_Optional_Parameter, Formal); | |
4295 | ||
4296 | elsif Compile_Time_Known_Value_Or_Aggr (Dval) then | |
4297 | null; | |
4298 | ||
4299 | else | |
fbf5a39b | 4300 | Error_Msg_FE |
996ae0b0 RK |
4301 | ("default value for optional formal& is non-static!", |
4302 | Arg_First_Optional_Parameter, Formal); | |
4303 | end if; | |
4304 | end if; | |
4305 | ||
4306 | Set_Is_Optional_Parameter (Formal); | |
4307 | Next_Formal (Formal); | |
4308 | end loop; | |
4309 | end if; | |
996ae0b0 RK |
4310 | end Process_Extended_Import_Export_Subprogram_Pragma; |
4311 | ||
4312 | -------------------------- | |
4313 | -- Process_Generic_List -- | |
4314 | -------------------------- | |
4315 | ||
4316 | procedure Process_Generic_List is | |
4317 | Arg : Node_Id; | |
4318 | Exp : Node_Id; | |
4319 | ||
4320 | begin | |
996ae0b0 RK |
4321 | Check_No_Identifiers; |
4322 | Check_At_Least_N_Arguments (1); | |
4323 | ||
4324 | Arg := Arg1; | |
4325 | while Present (Arg) loop | |
0f1a6a0b | 4326 | Exp := Get_Pragma_Arg (Arg); |
996ae0b0 RK |
4327 | Analyze (Exp); |
4328 | ||
4329 | if not Is_Entity_Name (Exp) | |
4330 | or else | |
4331 | (not Is_Generic_Instance (Entity (Exp)) | |
4332 | and then | |
4333 | not Is_Generic_Unit (Entity (Exp))) | |
4334 | then | |
4335 | Error_Pragma_Arg | |
4336 | ("pragma% argument must be name of generic unit/instance", | |
4337 | Arg); | |
4338 | end if; | |
4339 | ||
4340 | Next (Arg); | |
4341 | end loop; | |
4342 | end Process_Generic_List; | |
4343 | ||
15b682ca GB |
4344 | ------------------------------------ |
4345 | -- Process_Import_Predefined_Type -- | |
4346 | ------------------------------------ | |
4347 | ||
4348 | procedure Process_Import_Predefined_Type is | |
4349 | Loc : constant Source_Ptr := Sloc (N); | |
ded8909b | 4350 | Elmt : Elmt_Id; |
70c34e1c | 4351 | Ftyp : Node_Id := Empty; |
15b682ca GB |
4352 | Decl : Node_Id; |
4353 | Def : Node_Id; | |
4354 | Nam : Name_Id; | |
ded8909b | 4355 | |
15b682ca GB |
4356 | begin |
4357 | String_To_Name_Buffer (Strval (Expression (Arg3))); | |
4358 | Nam := Name_Find; | |
4359 | ||
ded8909b | 4360 | Elmt := First_Elmt (Predefined_Float_Types); |
70c34e1c AC |
4361 | while Present (Elmt) and then Chars (Node (Elmt)) /= Nam loop |
4362 | Next_Elmt (Elmt); | |
15b682ca GB |
4363 | end loop; |
4364 | ||
70c34e1c AC |
4365 | Ftyp := Node (Elmt); |
4366 | ||
15b682ca | 4367 | if Present (Ftyp) then |
ded8909b | 4368 | |
15b682ca GB |
4369 | -- Don't build a derived type declaration, because predefined C |
4370 | -- types have no declaration anywhere, so cannot really be named. | |
4371 | -- Instead build a full type declaration, starting with an | |
4372 | -- appropriate type definition is built | |
4373 | ||
4374 | if Is_Floating_Point_Type (Ftyp) then | |
4375 | Def := Make_Floating_Point_Definition (Loc, | |
4376 | Make_Integer_Literal (Loc, Digits_Value (Ftyp)), | |
4377 | Make_Real_Range_Specification (Loc, | |
4378 | Make_Real_Literal (Loc, Realval (Type_Low_Bound (Ftyp))), | |
4379 | Make_Real_Literal (Loc, Realval (Type_High_Bound (Ftyp))))); | |
4380 | ||
ded8909b AC |
4381 | -- Should never have a predefined type we cannot handle |
4382 | ||
15b682ca | 4383 | else |
15b682ca GB |
4384 | raise Program_Error; |
4385 | end if; | |
4386 | ||
4387 | -- Build and insert a Full_Type_Declaration, which will be | |
4388 | -- analyzed as soon as this list entry has been analyzed. | |
4389 | ||
4390 | Decl := Make_Full_Type_Declaration (Loc, | |
4391 | Make_Defining_Identifier (Loc, Chars (Expression (Arg2))), | |
4392 | Type_Definition => Def); | |
4393 | ||
4394 | Insert_After (N, Decl); | |
4395 | Mark_Rewrite_Insertion (Decl); | |
4396 | ||
4397 | else | |
4398 | Error_Pragma_Arg ("no matching type found for pragma%", | |
4399 | Arg2); | |
4400 | end if; | |
4401 | end Process_Import_Predefined_Type; | |
4402 | ||
996ae0b0 RK |
4403 | --------------------------------- |
4404 | -- Process_Import_Or_Interface -- | |
4405 | --------------------------------- | |
4406 | ||
4407 | procedure Process_Import_Or_Interface is | |
4408 | C : Convention_Id; | |
4409 | Def_Id : Entity_Id; | |
4410 | Hom_Id : Entity_Id; | |
4411 | ||
4412 | begin | |
4413 | Process_Convention (C, Def_Id); | |
4414 | Kill_Size_Check_Code (Def_Id); | |
0f1a6a0b | 4415 | Note_Possible_Modification (Get_Pragma_Arg (Arg2), Sure => False); |
996ae0b0 | 4416 | |
8a95f4e8 RD |
4417 | if Ekind_In (Def_Id, E_Variable, E_Constant) then |
4418 | ||
2fa9443e ES |
4419 | -- We do not permit Import to apply to a renaming declaration |
4420 | ||
4421 | if Present (Renamed_Object (Def_Id)) then | |
4422 | Error_Pragma_Arg | |
4423 | ("pragma% not allowed for object renaming", Arg2); | |
4424 | ||
996ae0b0 RK |
4425 | -- User initialization is not allowed for imported object, but |
4426 | -- the object declaration may contain a default initialization, | |
fbf5a39b AC |
4427 | -- that will be discarded. Note that an explicit initialization |
4428 | -- only counts if it comes from source, otherwise it is simply | |
4429 | -- the code generator making an implicit initialization explicit. | |
996ae0b0 | 4430 | |
2fa9443e ES |
4431 | elsif Present (Expression (Parent (Def_Id))) |
4432 | and then Comes_From_Source (Expression (Parent (Def_Id))) | |
996ae0b0 RK |
4433 | then |
4434 | Error_Msg_Sloc := Sloc (Def_Id); | |
4435 | Error_Pragma_Arg | |
4436 | ("no initialization allowed for declaration of& #", | |
c690a2ec | 4437 | "\imported entities cannot be initialized (RM B.1(24))", |
996ae0b0 RK |
4438 | Arg2); |
4439 | ||
4440 | else | |
4441 | Set_Imported (Def_Id); | |
996ae0b0 | 4442 | Process_Interface_Name (Def_Id, Arg3, Arg4); |
fbf5a39b | 4443 | |
2c9beb8a | 4444 | -- Note that we do not set Is_Public here. That's because we |
16b05213 | 4445 | -- only want to set it if there is no address clause, and we |
2c9beb8a RD |
4446 | -- don't know that yet, so we delay that processing till |
4447 | -- freeze time. | |
4448 | ||
5453d5bd AC |
4449 | -- pragma Import completes deferred constants |
4450 | ||
4451 | if Ekind (Def_Id) = E_Constant then | |
4452 | Set_Has_Completion (Def_Id); | |
4453 | end if; | |
4454 | ||
fbf5a39b AC |
4455 | -- It is not possible to import a constant of an unconstrained |
4456 | -- array type (e.g. string) because there is no simple way to | |
4457 | -- write a meaningful subtype for it. | |
4458 | ||
4459 | if Is_Array_Type (Etype (Def_Id)) | |
4460 | and then not Is_Constrained (Etype (Def_Id)) | |
4461 | then | |
4462 | Error_Msg_NE | |
4463 | ("imported constant& must have a constrained subtype", | |
4464 | N, Def_Id); | |
4465 | end if; | |
996ae0b0 RK |
4466 | end if; |
4467 | ||
4468 | elsif Is_Subprogram (Def_Id) | |
4469 | or else Is_Generic_Subprogram (Def_Id) | |
4470 | then | |
beacce02 AC |
4471 | -- If the name is overloaded, pragma applies to all of the denoted |
4472 | -- entities in the same declarative part. | |
996ae0b0 RK |
4473 | |
4474 | Hom_Id := Def_Id; | |
996ae0b0 RK |
4475 | while Present (Hom_Id) loop |
4476 | Def_Id := Get_Base_Subprogram (Hom_Id); | |
4477 | ||
beacce02 AC |
4478 | -- Ignore inherited subprograms because the pragma will apply |
4479 | -- to the parent operation, which is the one called. | |
996ae0b0 RK |
4480 | |
4481 | if Is_Overloadable (Def_Id) | |
4482 | and then Present (Alias (Def_Id)) | |
4483 | then | |
4484 | null; | |
4485 | ||
b3b9865d AC |
4486 | -- If it is not a subprogram, it must be in an outer scope and |
4487 | -- pragma does not apply. | |
fbf5a39b AC |
4488 | |
4489 | elsif not Is_Subprogram (Def_Id) | |
4490 | and then not Is_Generic_Subprogram (Def_Id) | |
4491 | then | |
4492 | null; | |
4493 | ||
0592046e AC |
4494 | -- The pragma does not apply to primitives of interfaces |
4495 | ||
4496 | elsif Is_Dispatching_Operation (Def_Id) | |
4497 | and then Present (Find_Dispatching_Type (Def_Id)) | |
4498 | and then Is_Interface (Find_Dispatching_Type (Def_Id)) | |
4499 | then | |
4500 | null; | |
4501 | ||
b3b9865d AC |
4502 | -- Verify that the homonym is in the same declarative part (not |
4503 | -- just the same scope). | |
996ae0b0 RK |
4504 | |
4505 | elsif Parent (Unit_Declaration_Node (Def_Id)) /= Parent (N) | |
4506 | and then Nkind (Parent (N)) /= N_Compilation_Unit_Aux | |
4507 | then | |
4508 | exit; | |
4509 | ||
4510 | else | |
4511 | Set_Imported (Def_Id); | |
4512 | ||
9fe2f33e AC |
4513 | -- Reject an Import applied to an abstract subprogram |
4514 | ||
6fa30ef2 ST |
4515 | if Is_Subprogram (Def_Id) |
4516 | and then Is_Abstract_Subprogram (Def_Id) | |
4517 | then | |
4518 | Error_Msg_Sloc := Sloc (Def_Id); | |
4519 | Error_Msg_NE | |
4520 | ("cannot import abstract subprogram& declared#", | |
4521 | Arg2, Def_Id); | |
4522 | end if; | |
4523 | ||
98f01d53 | 4524 | -- Special processing for Convention_Intrinsic |
996ae0b0 RK |
4525 | |
4526 | if C = Convention_Intrinsic then | |
98f01d53 AC |
4527 | |
4528 | -- Link_Name argument not allowed for intrinsic | |
4529 | ||
9eea4346 | 4530 | Check_No_Link_Name; |
98f01d53 | 4531 | |
996ae0b0 | 4532 | Set_Is_Intrinsic_Subprogram (Def_Id); |
98f01d53 | 4533 | |
b3b9865d AC |
4534 | -- If no external name is present, then check that this |
4535 | -- is a valid intrinsic subprogram. If an external name | |
4536 | -- is present, then this is handled by the back end. | |
98f01d53 AC |
4537 | |
4538 | if No (Arg3) then | |
0f1a6a0b AC |
4539 | Check_Intrinsic_Subprogram |
4540 | (Def_Id, Get_Pragma_Arg (Arg2)); | |
98f01d53 | 4541 | end if; |
996ae0b0 RK |
4542 | end if; |
4543 | ||
b3b9865d AC |
4544 | -- All interfaced procedures need an external symbol created |
4545 | -- for them since they are always referenced from another | |
4546 | -- object file. | |
996ae0b0 RK |
4547 | |
4548 | Set_Is_Public (Def_Id); | |
fbf5a39b AC |
4549 | |
4550 | -- Verify that the subprogram does not have a completion | |
b3b9865d AC |
4551 | -- through a renaming declaration. For other completions the |
4552 | -- pragma appears as a too late representation. | |
fbf5a39b AC |
4553 | |
4554 | declare | |
4555 | Decl : constant Node_Id := Unit_Declaration_Node (Def_Id); | |
91b1417d | 4556 | |
fbf5a39b AC |
4557 | begin |
4558 | if Present (Decl) | |
4559 | and then Nkind (Decl) = N_Subprogram_Declaration | |
4560 | and then Present (Corresponding_Body (Decl)) | |
f2131422 JM |
4561 | and then Nkind (Unit_Declaration_Node |
4562 | (Corresponding_Body (Decl))) = | |
fbf5a39b AC |
4563 | N_Subprogram_Renaming_Declaration |
4564 | then | |
4565 | Error_Msg_Sloc := Sloc (Def_Id); | |
c690a2ec RD |
4566 | Error_Msg_NE |
4567 | ("cannot import&, renaming already provided for " & | |
4568 | "declaration #", N, Def_Id); | |
fbf5a39b AC |
4569 | end if; |
4570 | end; | |
4571 | ||
996ae0b0 RK |
4572 | Set_Has_Completion (Def_Id); |
4573 | Process_Interface_Name (Def_Id, Arg3, Arg4); | |
4574 | end if; | |
4575 | ||
4576 | if Is_Compilation_Unit (Hom_Id) then | |
4577 | ||
4578 | -- Its possible homonyms are not affected by the pragma. | |
4579 | -- Such homonyms might be present in the context of other | |
4580 | -- units being compiled. | |
4581 | ||
4582 | exit; | |
4583 | ||
4584 | else | |
4585 | Hom_Id := Homonym (Hom_Id); | |
4586 | end if; | |
4587 | end loop; | |
4588 | ||
2fa9443e | 4589 | -- When the convention is Java or CIL, we also allow Import to be |
7e8ed0a6 AC |
4590 | -- given for packages, generic packages, exceptions, record |
4591 | -- components, and access to subprograms. | |
996ae0b0 | 4592 | |
2fa9443e | 4593 | elsif (C = Convention_Java or else C = Convention_CIL) |
6e937c1c | 4594 | and then |
b9b2405f | 4595 | (Is_Package_Or_Generic_Package (Def_Id) |
d7ba4df4 | 4596 | or else Ekind (Def_Id) = E_Exception |
7e8ed0a6 | 4597 | or else Ekind (Def_Id) = E_Access_Subprogram_Type |
d7ba4df4 | 4598 | or else Nkind (Parent (Def_Id)) = N_Component_Declaration) |
996ae0b0 RK |
4599 | then |
4600 | Set_Imported (Def_Id); | |
4601 | Set_Is_Public (Def_Id); | |
4602 | Process_Interface_Name (Def_Id, Arg3, Arg4); | |
4603 | ||
874a0341 RD |
4604 | -- Import a CPP class |
4605 | ||
4606 | elsif Is_Record_Type (Def_Id) | |
4607 | and then C = Convention_CPP | |
4608 | then | |
56e94186 AC |
4609 | -- Types treated as CPP classes must be declared limited (note: |
4610 | -- this used to be a warning but there is no real benefit to it | |
4611 | -- since we did effectively intend to treat the type as limited | |
4612 | -- anyway). | |
2fa9443e | 4613 | |
7b4db06c | 4614 | if not Is_Limited_Type (Def_Id) then |
ed2233dc | 4615 | Error_Msg_N |
56e94186 | 4616 | ("imported 'C'P'P type must be limited", |
7b4db06c JM |
4617 | Get_Pragma_Arg (Arg2)); |
4618 | end if; | |
2fa9443e | 4619 | |
7b4db06c | 4620 | Set_Is_CPP_Class (Def_Id); |
0c020dde | 4621 | |
7b4db06c JM |
4622 | -- Imported CPP types must not have discriminants (because C++ |
4623 | -- classes do not have discriminants). | |
0c020dde | 4624 | |
7b4db06c JM |
4625 | if Has_Discriminants (Def_Id) then |
4626 | Error_Msg_N | |
4627 | ("imported 'C'P'P type cannot have discriminants", | |
4628 | First (Discriminant_Specifications | |
4629 | (Declaration_Node (Def_Id)))); | |
4630 | end if; | |
0c020dde | 4631 | |
7b4db06c | 4632 | -- Components of imported CPP types must not have default |
3c92a2b8 | 4633 | -- expressions because the constructor (if any) is on the |
7b4db06c | 4634 | -- C++ side. |
0c020dde | 4635 | |
7b4db06c JM |
4636 | declare |
4637 | Tdef : constant Node_Id := | |
4638 | Type_Definition (Declaration_Node (Def_Id)); | |
4639 | Clist : Node_Id; | |
4640 | Comp : Node_Id; | |
0c020dde | 4641 | |
7b4db06c JM |
4642 | begin |
4643 | if Nkind (Tdef) = N_Record_Definition then | |
4644 | Clist := Component_List (Tdef); | |
0c020dde | 4645 | |
7b4db06c JM |
4646 | else |
4647 | pragma Assert (Nkind (Tdef) = N_Derived_Type_Definition); | |
4648 | Clist := Component_List (Record_Extension_Part (Tdef)); | |
4649 | end if; | |
0c020dde | 4650 | |
7b4db06c JM |
4651 | if Present (Clist) then |
4652 | Comp := First (Component_Items (Clist)); | |
4653 | while Present (Comp) loop | |
4654 | if Present (Expression (Comp)) then | |
4655 | Error_Msg_N | |
4656 | ("component of imported 'C'P'P type cannot have" & | |
4657 | " default expression", Expression (Comp)); | |
4658 | end if; | |
0c020dde | 4659 | |
7b4db06c JM |
4660 | Next (Comp); |
4661 | end loop; | |
4662 | end if; | |
4663 | end; | |
874a0341 | 4664 | |
15b682ca GB |
4665 | elsif Nkind (Parent (Def_Id)) = N_Incomplete_Type_Declaration then |
4666 | Check_No_Link_Name; | |
4667 | Check_Arg_Count (3); | |
4668 | Check_Arg_Is_Static_Expression (Arg3, Standard_String); | |
4669 | ||
4670 | Process_Import_Predefined_Type; | |
4671 | ||
996ae0b0 RK |
4672 | else |
4673 | Error_Pragma_Arg | |
15b682ca GB |
4674 | ("second argument of pragma% must be object, subprogram" & |
4675 | " or incomplete type", | |
996ae0b0 RK |
4676 | Arg2); |
4677 | end if; | |
4678 | ||
b3b9865d AC |
4679 | -- If this pragma applies to a compilation unit, then the unit, which |
4680 | -- is a subprogram, does not require (or allow) a body. We also do | |
4681 | -- not need to elaborate imported procedures. | |
996ae0b0 RK |
4682 | |
4683 | if Nkind (Parent (N)) = N_Compilation_Unit_Aux then | |
4684 | declare | |
4685 | Cunit : constant Node_Id := Parent (Parent (N)); | |
996ae0b0 | 4686 | begin |
a9f4e3d2 | 4687 | Set_Body_Required (Cunit, False); |
996ae0b0 RK |
4688 | end; |
4689 | end if; | |
996ae0b0 RK |
4690 | end Process_Import_Or_Interface; |
4691 | ||
4692 | -------------------- | |
4693 | -- Process_Inline -- | |
4694 | -------------------- | |
4695 | ||
4696 | procedure Process_Inline (Active : Boolean) is | |
6e937c1c AC |
4697 | Assoc : Node_Id; |
4698 | Decl : Node_Id; | |
4699 | Subp_Id : Node_Id; | |
4700 | Subp : Entity_Id; | |
4701 | Applies : Boolean; | |
eaba57fb | 4702 | |
6e937c1c | 4703 | Effective : Boolean := False; |
eaba57fb RD |
4704 | -- Set True if inline has some effect, i.e. if there is at least one |
4705 | -- subprogram set as inlined as a result of the use of the pragma. | |
996ae0b0 RK |
4706 | |
4707 | procedure Make_Inline (Subp : Entity_Id); | |
b3b9865d AC |
4708 | -- Subp is the defining unit name of the subprogram declaration. Set |
4709 | -- the flag, as well as the flag in the corresponding body, if there | |
4710 | -- is one present. | |
996ae0b0 RK |
4711 | |
4712 | procedure Set_Inline_Flags (Subp : Entity_Id); | |
470cd9e9 RD |
4713 | -- Sets Is_Inlined and Has_Pragma_Inline flags for Subp and also |
4714 | -- Has_Pragma_Inline_Always for the Inline_Always case. | |
996ae0b0 | 4715 | |
98f01d53 AC |
4716 | function Inlining_Not_Possible (Subp : Entity_Id) return Boolean; |
4717 | -- Returns True if it can be determined at this stage that inlining | |
f3d57416 | 4718 | -- is not possible, for example if the body is available and contains |
98f01d53 AC |
4719 | -- exception handlers, we prevent inlining, since otherwise we can |
4720 | -- get undefined symbols at link time. This function also emits a | |
4721 | -- warning if front-end inlining is enabled and the pragma appears | |
4722 | -- too late. | |
470cd9e9 | 4723 | -- |
98f01d53 AC |
4724 | -- ??? is business with link symbols still valid, or does it relate |
4725 | -- to front end ZCX which is being phased out ??? | |
fbf5a39b | 4726 | |
98f01d53 AC |
4727 | --------------------------- |
4728 | -- Inlining_Not_Possible -- | |
4729 | --------------------------- | |
fbf5a39b | 4730 | |
98f01d53 AC |
4731 | function Inlining_Not_Possible (Subp : Entity_Id) return Boolean is |
4732 | Decl : constant Node_Id := Unit_Declaration_Node (Subp); | |
4733 | Stats : Node_Id; | |
fbf5a39b AC |
4734 | |
4735 | begin | |
4736 | if Nkind (Decl) = N_Subprogram_Body then | |
98f01d53 AC |
4737 | Stats := Handled_Statement_Sequence (Decl); |
4738 | return Present (Exception_Handlers (Stats)) | |
4739 | or else Present (At_End_Proc (Stats)); | |
fbf5a39b AC |
4740 | |
4741 | elsif Nkind (Decl) = N_Subprogram_Declaration | |
4742 | and then Present (Corresponding_Body (Decl)) | |
4743 | then | |
c37bb106 AC |
4744 | if Front_End_Inlining |
4745 | and then Analyzed (Corresponding_Body (Decl)) | |
4746 | then | |
ed2233dc | 4747 | Error_Msg_N ("pragma appears too late, ignored?", N); |
c37bb106 AC |
4748 | return True; |
4749 | ||
b3b9865d AC |
4750 | -- If the subprogram is a renaming as body, the body is just a |
4751 | -- call to the renamed subprogram, and inlining is trivially | |
4752 | -- possible. | |
a9f4e3d2 | 4753 | |
c37bb106 | 4754 | elsif |
2fa9443e ES |
4755 | Nkind (Unit_Declaration_Node (Corresponding_Body (Decl))) = |
4756 | N_Subprogram_Renaming_Declaration | |
a9f4e3d2 AC |
4757 | then |
4758 | return False; | |
4759 | ||
4760 | else | |
98f01d53 AC |
4761 | Stats := |
4762 | Handled_Statement_Sequence | |
4763 | (Unit_Declaration_Node (Corresponding_Body (Decl))); | |
4764 | ||
a9f4e3d2 | 4765 | return |
98f01d53 AC |
4766 | Present (Exception_Handlers (Stats)) |
4767 | or else Present (At_End_Proc (Stats)); | |
a9f4e3d2 | 4768 | end if; |
98f01d53 | 4769 | |
fbf5a39b AC |
4770 | else |
4771 | -- If body is not available, assume the best, the check is | |
4772 | -- performed again when compiling enclosing package bodies. | |
4773 | ||
4774 | return False; | |
4775 | end if; | |
98f01d53 | 4776 | end Inlining_Not_Possible; |
fbf5a39b | 4777 | |
996ae0b0 RK |
4778 | ----------------- |
4779 | -- Make_Inline -- | |
4780 | ----------------- | |
4781 | ||
4782 | procedure Make_Inline (Subp : Entity_Id) is | |
fbf5a39b | 4783 | Kind : constant Entity_Kind := Ekind (Subp); |
996ae0b0 RK |
4784 | Inner_Subp : Entity_Id := Subp; |
4785 | ||
4786 | begin | |
470cd9e9 RD |
4787 | -- Ignore if bad type, avoid cascaded error |
4788 | ||
996ae0b0 | 4789 | if Etype (Subp) = Any_Type then |
470cd9e9 RD |
4790 | Applies := True; |
4791 | return; | |
4792 | ||
4793 | -- Ignore if all inlining is suppressed | |
4794 | ||
4795 | elsif Suppress_All_Inlining then | |
4796 | Applies := True; | |
996ae0b0 RK |
4797 | return; |
4798 | ||
98f01d53 AC |
4799 | -- If inlining is not possible, for now do not treat as an error |
4800 | ||
4801 | elsif Inlining_Not_Possible (Subp) then | |
4802 | Applies := True; | |
fbf5a39b AC |
4803 | return; |
4804 | ||
996ae0b0 | 4805 | -- Here we have a candidate for inlining, but we must exclude |
21d27997 RD |
4806 | -- derived operations. Otherwise we would end up trying to inline |
4807 | -- a phantom declaration, and the result would be to drag in a | |
4808 | -- body which has no direct inlining associated with it. That | |
4809 | -- would not only be inefficient but would also result in the | |
4810 | -- backend doing cross-unit inlining in cases where it was | |
4811 | -- definitely inappropriate to do so. | |
4812 | ||
4813 | -- However, a simple Comes_From_Source test is insufficient, since | |
4814 | -- we do want to allow inlining of generic instances which also do | |
b3b9865d AC |
4815 | -- not come from source. We also need to recognize specs generated |
4816 | -- by the front-end for bodies that carry the pragma. Finally, | |
4817 | -- predefined operators do not come from source but are not | |
4818 | -- inlineable either. | |
21d27997 RD |
4819 | |
4820 | elsif Is_Generic_Instance (Subp) | |
4821 | or else Nkind (Parent (Parent (Subp))) = N_Subprogram_Declaration | |
4822 | then | |
4823 | null; | |
996ae0b0 RK |
4824 | |
4825 | elsif not Comes_From_Source (Subp) | |
996ae0b0 RK |
4826 | and then Scope (Subp) /= Standard_Standard |
4827 | then | |
4828 | Applies := True; | |
4829 | return; | |
21d27997 | 4830 | end if; |
996ae0b0 | 4831 | |
b3b9865d AC |
4832 | -- The referenced entity must either be the enclosing entity, or |
4833 | -- an entity declared within the current open scope. | |
996ae0b0 | 4834 | |
21d27997 | 4835 | if Present (Scope (Subp)) |
996ae0b0 RK |
4836 | and then Scope (Subp) /= Current_Scope |
4837 | and then Subp /= Current_Scope | |
4838 | then | |
4839 | Error_Pragma_Arg | |
4840 | ("argument of% must be entity in current scope", Assoc); | |
4841 | return; | |
4842 | end if; | |
4843 | ||
b3b9865d AC |
4844 | -- Processing for procedure, operator or function. If subprogram |
4845 | -- is aliased (as for an instance) indicate that the renamed | |
4846 | -- entity (if declared in the same unit) is inlined. | |
996ae0b0 | 4847 | |
fbf5a39b | 4848 | if Is_Subprogram (Subp) then |
b81a5940 | 4849 | Inner_Subp := Ultimate_Alias (Inner_Subp); |
996ae0b0 | 4850 | |
af4b9434 AC |
4851 | if In_Same_Source_Unit (Subp, Inner_Subp) then |
4852 | Set_Inline_Flags (Inner_Subp); | |
996ae0b0 | 4853 | |
af4b9434 | 4854 | Decl := Parent (Parent (Inner_Subp)); |
996ae0b0 | 4855 | |
af4b9434 AC |
4856 | if Nkind (Decl) = N_Subprogram_Declaration |
4857 | and then Present (Corresponding_Body (Decl)) | |
4858 | then | |
4859 | Set_Inline_Flags (Corresponding_Body (Decl)); | |
cfb02ad1 AC |
4860 | |
4861 | elsif Is_Generic_Instance (Subp) then | |
4862 | ||
4863 | -- Indicate that the body needs to be created for | |
b3b9865d AC |
4864 | -- inlining subsequent calls. The instantiation node |
4865 | -- follows the declaration of the wrapper package | |
4866 | -- created for it. | |
cfb02ad1 AC |
4867 | |
4868 | if Scope (Subp) /= Standard_Standard | |
4869 | and then | |
4870 | Need_Subprogram_Instance_Body | |
4871 | (Next (Unit_Declaration_Node (Scope (Alias (Subp)))), | |
4872 | Subp) | |
4873 | then | |
4874 | null; | |
4875 | end if; | |
79e705d6 AC |
4876 | |
4877 | -- Inline is a program unit pragma (RM 10.1.5) and cannot | |
4878 | -- appear in a formal part to apply to a formal subprogram. | |
25ebc085 AC |
4879 | -- Do not apply check within an instance or a formal package |
4880 | -- the test will have been applied to the original generic. | |
79e705d6 AC |
4881 | |
4882 | elsif Nkind (Decl) in N_Formal_Subprogram_Declaration | |
4883 | and then List_Containing (Decl) = List_Containing (N) | |
25ebc085 | 4884 | and then not In_Instance |
79e705d6 AC |
4885 | then |
4886 | Error_Msg_N | |
4887 | ("Inline cannot apply to a formal subprogram", N); | |
af4b9434 | 4888 | end if; |
996ae0b0 RK |
4889 | end if; |
4890 | ||
4891 | Applies := True; | |
4892 | ||
b3b9865d AC |
4893 | -- For a generic subprogram set flag as well, for use at the point |
4894 | -- of instantiation, to determine whether the body should be | |
4895 | -- generated. | |
996ae0b0 | 4896 | |
fbf5a39b | 4897 | elsif Is_Generic_Subprogram (Subp) then |
996ae0b0 RK |
4898 | Set_Inline_Flags (Subp); |
4899 | Applies := True; | |
4900 | ||
fbf5a39b | 4901 | -- Literals are by definition inlined |
996ae0b0 RK |
4902 | |
4903 | elsif Kind = E_Enumeration_Literal then | |
4904 | null; | |
4905 | ||
4906 | -- Anything else is an error | |
4907 | ||
4908 | else | |
4909 | Error_Pragma_Arg | |
4910 | ("expect subprogram name for pragma%", Assoc); | |
4911 | end if; | |
4912 | end Make_Inline; | |
4913 | ||
4914 | ---------------------- | |
4915 | -- Set_Inline_Flags -- | |
4916 | ---------------------- | |
4917 | ||
4918 | procedure Set_Inline_Flags (Subp : Entity_Id) is | |
4919 | begin | |
4920 | if Active then | |
eaba57fb | 4921 | Set_Is_Inlined (Subp); |
996ae0b0 RK |
4922 | end if; |
4923 | ||
4924 | if not Has_Pragma_Inline (Subp) then | |
eaba57fb | 4925 | Set_Has_Pragma_Inline (Subp); |
6e937c1c | 4926 | Effective := True; |
996ae0b0 | 4927 | end if; |
470cd9e9 RD |
4928 | |
4929 | if Prag_Id = Pragma_Inline_Always then | |
eaba57fb | 4930 | Set_Has_Pragma_Inline_Always (Subp); |
470cd9e9 | 4931 | end if; |
996ae0b0 RK |
4932 | end Set_Inline_Flags; |
4933 | ||
4934 | -- Start of processing for Process_Inline | |
4935 | ||
4936 | begin | |
4937 | Check_No_Identifiers; | |
4938 | Check_At_Least_N_Arguments (1); | |
4939 | ||
4940 | if Active then | |
4941 | Inline_Processing_Required := True; | |
4942 | end if; | |
4943 | ||
4944 | Assoc := Arg1; | |
4945 | while Present (Assoc) loop | |
0f1a6a0b | 4946 | Subp_Id := Get_Pragma_Arg (Assoc); |
996ae0b0 RK |
4947 | Analyze (Subp_Id); |
4948 | Applies := False; | |
4949 | ||
4950 | if Is_Entity_Name (Subp_Id) then | |
4951 | Subp := Entity (Subp_Id); | |
4952 | ||
4953 | if Subp = Any_Id then | |
59e5fbe0 RD |
4954 | |
4955 | -- If previous error, avoid cascaded errors | |
4956 | ||
996ae0b0 | 4957 | Applies := True; |
59e5fbe0 | 4958 | Effective := True; |
996ae0b0 RK |
4959 | |
4960 | else | |
4961 | Make_Inline (Subp); | |
4962 | ||
9f90d123 AC |
4963 | -- For the pragma case, climb homonym chain. This is |
4964 | -- what implements allowing the pragma in the renaming | |
df177175 RD |
4965 | -- case, with the result applying to the ancestors, and |
4966 | -- also allows Inline to apply to all previous homonyms. | |
9f90d123 | 4967 | |
0f1a6a0b AC |
4968 | if not From_Aspect_Specification (N) then |
4969 | while Present (Homonym (Subp)) | |
4970 | and then Scope (Homonym (Subp)) = Current_Scope | |
4971 | loop | |
4972 | Make_Inline (Homonym (Subp)); | |
4973 | Subp := Homonym (Subp); | |
4974 | end loop; | |
4975 | end if; | |
996ae0b0 RK |
4976 | end if; |
4977 | end if; | |
4978 | ||
4979 | if not Applies then | |
4980 | Error_Pragma_Arg | |
4981 | ("inappropriate argument for pragma%", Assoc); | |
6e937c1c AC |
4982 | |
4983 | elsif not Effective | |
4984 | and then Warn_On_Redundant_Constructs | |
470cd9e9 | 4985 | and then not Suppress_All_Inlining |
6e937c1c | 4986 | then |
98f01d53 | 4987 | if Inlining_Not_Possible (Subp) then |
ed2233dc | 4988 | Error_Msg_NE |
98f01d53 AC |
4989 | ("pragma Inline for& is ignored?", N, Entity (Subp_Id)); |
4990 | else | |
ed2233dc | 4991 | Error_Msg_NE |
98f01d53 AC |
4992 | ("pragma Inline for& is redundant?", N, Entity (Subp_Id)); |
4993 | end if; | |
996ae0b0 RK |
4994 | end if; |
4995 | ||
4996 | Next (Assoc); | |
4997 | end loop; | |
996ae0b0 RK |
4998 | end Process_Inline; |
4999 | ||
5000 | ---------------------------- | |
5001 | -- Process_Interface_Name -- | |
5002 | ---------------------------- | |
5003 | ||
5004 | procedure Process_Interface_Name | |
5005 | (Subprogram_Def : Entity_Id; | |
5006 | Ext_Arg : Node_Id; | |
5007 | Link_Arg : Node_Id) | |
5008 | is | |
5009 | Ext_Nam : Node_Id; | |
5010 | Link_Nam : Node_Id; | |
5011 | String_Val : String_Id; | |
5012 | ||
7406fc15 RD |
5013 | procedure Check_Form_Of_Interface_Name |
5014 | (SN : Node_Id; | |
5015 | Ext_Name_Case : Boolean); | |
996ae0b0 RK |
5016 | -- SN is a string literal node for an interface name. This routine |
5017 | -- performs some minimal checks that the name is reasonable. In | |
5018 | -- particular that no spaces or other obviously incorrect characters | |
5019 | -- appear. This is only a warning, since any characters are allowed. | |
7406fc15 | 5020 | -- Ext_Name_Case is True for an External_Name, False for a Link_Name. |
996ae0b0 | 5021 | |
2c9beb8a RD |
5022 | ---------------------------------- |
5023 | -- Check_Form_Of_Interface_Name -- | |
5024 | ---------------------------------- | |
5025 | ||
7406fc15 RD |
5026 | procedure Check_Form_Of_Interface_Name |
5027 | (SN : Node_Id; | |
5028 | Ext_Name_Case : Boolean) | |
5029 | is | |
996ae0b0 RK |
5030 | S : constant String_Id := Strval (Expr_Value_S (SN)); |
5031 | SL : constant Nat := String_Length (S); | |
5032 | C : Char_Code; | |
5033 | ||
5034 | begin | |
5035 | if SL = 0 then | |
5036 | Error_Msg_N ("interface name cannot be null string", SN); | |
5037 | end if; | |
5038 | ||
5039 | for J in 1 .. SL loop | |
5040 | C := Get_String_Char (S, J); | |
5041 | ||
7406fc15 RD |
5042 | -- Look for dubious character and issue unconditional warning. |
5043 | -- Definitely dubious if not in character range. | |
5044 | ||
5045 | if not In_Character_Range (C) | |
5046 | ||
a7a3cf5c | 5047 | -- For all cases except CLI target, |
57eb1cf5 | 5048 | -- commas, spaces and slashes are dubious (in CLI, we use |
a7a3cf5c AC |
5049 | -- commas and backslashes in external names to specify |
5050 | -- assembly version and public key, while slashes and spaces | |
5051 | -- can be used in names to mark nested classes and | |
5052 | -- valuetypes). | |
7406fc15 | 5053 | |
57eb1cf5 | 5054 | or else ((not Ext_Name_Case or else VM_Target /= CLI_Target) |
a7a3cf5c | 5055 | and then (Get_Character (C) = ',' |
57eb1cf5 | 5056 | or else |
7406fc15 | 5057 | Get_Character (C) = '\')) |
7e8ed0a6 | 5058 | or else (VM_Target /= CLI_Target |
a7a3cf5c AC |
5059 | and then (Get_Character (C) = ' ' |
5060 | or else | |
5061 | Get_Character (C) = '/')) | |
996ae0b0 | 5062 | then |
ed2233dc | 5063 | Error_Msg |
7406fc15 RD |
5064 | ("?interface name contains illegal character", |
5065 | Sloc (SN) + Source_Ptr (J)); | |
996ae0b0 RK |
5066 | end if; |
5067 | end loop; | |
5068 | end Check_Form_Of_Interface_Name; | |
5069 | ||
5070 | -- Start of processing for Process_Interface_Name | |
5071 | ||
5072 | begin | |
5073 | if No (Link_Arg) then | |
5074 | if No (Ext_Arg) then | |
2fa9443e ES |
5075 | if VM_Target = CLI_Target |
5076 | and then Ekind (Subprogram_Def) = E_Package | |
5077 | and then Nkind (Parent (Subprogram_Def)) = | |
5078 | N_Package_Specification | |
5079 | and then Present (Generic_Parent (Parent (Subprogram_Def))) | |
5080 | then | |
5081 | Set_Interface_Name | |
5082 | (Subprogram_Def, | |
5083 | Interface_Name | |
5084 | (Generic_Parent (Parent (Subprogram_Def)))); | |
5085 | end if; | |
5086 | ||
996ae0b0 RK |
5087 | return; |
5088 | ||
5089 | elsif Chars (Ext_Arg) = Name_Link_Name then | |
5090 | Ext_Nam := Empty; | |
5091 | Link_Nam := Expression (Ext_Arg); | |
5092 | ||
5093 | else | |
5094 | Check_Optional_Identifier (Ext_Arg, Name_External_Name); | |
5095 | Ext_Nam := Expression (Ext_Arg); | |
5096 | Link_Nam := Empty; | |
5097 | end if; | |
5098 | ||
5099 | else | |
5100 | Check_Optional_Identifier (Ext_Arg, Name_External_Name); | |
5101 | Check_Optional_Identifier (Link_Arg, Name_Link_Name); | |
5102 | Ext_Nam := Expression (Ext_Arg); | |
5103 | Link_Nam := Expression (Link_Arg); | |
5104 | end if; | |
5105 | ||
5106 | -- Check expressions for external name and link name are static | |
5107 | ||
5108 | if Present (Ext_Nam) then | |
5109 | Check_Arg_Is_Static_Expression (Ext_Nam, Standard_String); | |
7406fc15 | 5110 | Check_Form_Of_Interface_Name (Ext_Nam, Ext_Name_Case => True); |
996ae0b0 | 5111 | |
7406fc15 RD |
5112 | -- Verify that external name is not the name of a local entity, |
5113 | -- which would hide the imported one and could lead to run-time | |
5114 | -- surprises. The problem can only arise for entities declared in | |
5115 | -- a package body (otherwise the external name is fully qualified | |
5116 | -- and will not conflict). | |
996ae0b0 RK |
5117 | |
5118 | declare | |
5119 | Nam : Name_Id; | |
5120 | E : Entity_Id; | |
5121 | Par : Node_Id; | |
5122 | ||
5123 | begin | |
5124 | if Prag_Id = Pragma_Import then | |
5125 | String_To_Name_Buffer (Strval (Expr_Value_S (Ext_Nam))); | |
5126 | Nam := Name_Find; | |
5127 | E := Entity_Id (Get_Name_Table_Info (Nam)); | |
5128 | ||
5129 | if Nam /= Chars (Subprogram_Def) | |
5130 | and then Present (E) | |
5131 | and then not Is_Overloadable (E) | |
5132 | and then Is_Immediately_Visible (E) | |
5133 | and then not Is_Imported (E) | |
5134 | and then Ekind (Scope (E)) = E_Package | |
5135 | then | |
5136 | Par := Parent (E); | |
996ae0b0 RK |
5137 | while Present (Par) loop |
5138 | if Nkind (Par) = N_Package_Body then | |
7406fc15 | 5139 | Error_Msg_Sloc := Sloc (E); |
996ae0b0 RK |
5140 | Error_Msg_NE |
5141 | ("imported entity is hidden by & declared#", | |
7406fc15 | 5142 | Ext_Arg, E); |
996ae0b0 RK |
5143 | exit; |
5144 | end if; | |
5145 | ||
5146 | Par := Parent (Par); | |
5147 | end loop; | |
5148 | end if; | |
5149 | end if; | |
5150 | end; | |
5151 | end if; | |
5152 | ||
5153 | if Present (Link_Nam) then | |
5154 | Check_Arg_Is_Static_Expression (Link_Nam, Standard_String); | |
7406fc15 | 5155 | Check_Form_Of_Interface_Name (Link_Nam, Ext_Name_Case => False); |
996ae0b0 RK |
5156 | end if; |
5157 | ||
5158 | -- If there is no link name, just set the external name | |
5159 | ||
5160 | if No (Link_Nam) then | |
523456db | 5161 | Link_Nam := Adjust_External_Name_Case (Expr_Value_S (Ext_Nam)); |
996ae0b0 RK |
5162 | |
5163 | -- For the Link_Name case, the given literal is preceded by an | |
b3b9865d AC |
5164 | -- asterisk, which indicates to GCC that the given name should be |
5165 | -- taken literally, and in particular that no prepending of | |
996ae0b0 RK |
5166 | -- underlines should occur, even in systems where this is the |
5167 | -- normal default. | |
5168 | ||
5169 | else | |
5170 | Start_String; | |
2fa9443e ES |
5171 | |
5172 | if VM_Target = No_VM then | |
5173 | Store_String_Char (Get_Char_Code ('*')); | |
5174 | end if; | |
5175 | ||
996ae0b0 | 5176 | String_Val := Strval (Expr_Value_S (Link_Nam)); |
b54ddf5a | 5177 | Store_String_Chars (String_Val); |
996ae0b0 | 5178 | Link_Nam := |
b54ddf5a BD |
5179 | Make_String_Literal (Sloc (Link_Nam), |
5180 | Strval => End_String); | |
996ae0b0 | 5181 | end if; |
523456db | 5182 | |
53f29d4f AC |
5183 | -- Set the interface name. If the entity is a generic instance, use |
5184 | -- its alias, which is the callable entity. | |
5185 | ||
5186 | if Is_Generic_Instance (Subprogram_Def) then | |
5187 | Set_Encoded_Interface_Name | |
5188 | (Alias (Get_Base_Subprogram (Subprogram_Def)), Link_Nam); | |
53f29d4f AC |
5189 | else |
5190 | Set_Encoded_Interface_Name | |
5191 | (Get_Base_Subprogram (Subprogram_Def), Link_Nam); | |
5192 | end if; | |
8255bc9d | 5193 | |
f9ad6b62 | 5194 | -- We allow duplicated export names in CIL/Java, as they are always |
8255bc9d AC |
5195 | -- enclosed in a namespace that differentiates them, and overloaded |
5196 | -- entities are supported by the VM. | |
5197 | ||
f9ad6b62 | 5198 | if Convention (Subprogram_Def) /= Convention_CIL |
2c1b72d7 AC |
5199 | and then |
5200 | Convention (Subprogram_Def) /= Convention_Java | |
f9ad6b62 | 5201 | then |
8255bc9d AC |
5202 | Check_Duplicated_Export_Name (Link_Nam); |
5203 | end if; | |
996ae0b0 RK |
5204 | end Process_Interface_Name; |
5205 | ||
5206 | ----------------------------------------- | |
5207 | -- Process_Interrupt_Or_Attach_Handler -- | |
5208 | ----------------------------------------- | |
5209 | ||
5210 | procedure Process_Interrupt_Or_Attach_Handler is | |
0f1a6a0b | 5211 | Arg1_X : constant Node_Id := Get_Pragma_Arg (Arg1); |
fbf5a39b AC |
5212 | Handler_Proc : constant Entity_Id := Entity (Arg1_X); |
5213 | Proc_Scope : constant Entity_Id := Scope (Handler_Proc); | |
996ae0b0 RK |
5214 | |
5215 | begin | |
fbf5a39b | 5216 | Set_Is_Interrupt_Handler (Handler_Proc); |
996ae0b0 | 5217 | |
b3b9865d AC |
5218 | -- If the pragma is not associated with a handler procedure within a |
5219 | -- protected type, then it must be for a nonprotected procedure for | |
5220 | -- the AAMP target, in which case we don't associate a representation | |
5221 | -- item with the procedure's scope. | |
996ae0b0 | 5222 | |
fbf5a39b AC |
5223 | if Ekind (Proc_Scope) = E_Protected_Type then |
5224 | if Prag_Id = Pragma_Interrupt_Handler | |
6e937c1c AC |
5225 | or else |
5226 | Prag_Id = Pragma_Attach_Handler | |
fbf5a39b AC |
5227 | then |
5228 | Record_Rep_Item (Proc_Scope, N); | |
5229 | end if; | |
5230 | end if; | |
996ae0b0 RK |
5231 | end Process_Interrupt_Or_Attach_Handler; |
5232 | ||
6e937c1c AC |
5233 | -------------------------------------------------- |
5234 | -- Process_Restrictions_Or_Restriction_Warnings -- | |
5235 | -------------------------------------------------- | |
5236 | ||
5f3ab6fb AC |
5237 | -- Note: some of the simple identifier cases were handled in par-prag, |
5238 | -- but it is harmless (and more straightforward) to simply handle all | |
5239 | -- cases here, even if it means we repeat a bit of work in some cases. | |
5240 | ||
ac9e9918 RD |
5241 | procedure Process_Restrictions_Or_Restriction_Warnings |
5242 | (Warn : Boolean) | |
5243 | is | |
6e937c1c AC |
5244 | Arg : Node_Id; |
5245 | R_Id : Restriction_Id; | |
5246 | Id : Name_Id; | |
5247 | Expr : Node_Id; | |
5248 | Val : Uint; | |
5249 | ||
5f3ab6fb AC |
5250 | procedure Check_Unit_Name (N : Node_Id); |
5251 | -- Checks unit name parameter for No_Dependence. Returns if it has | |
5252 | -- an appropriate form, otherwise raises pragma argument error. | |
5253 | ||
5f3ab6fb AC |
5254 | --------------------- |
5255 | -- Check_Unit_Name -- | |
5256 | --------------------- | |
5257 | ||
5258 | procedure Check_Unit_Name (N : Node_Id) is | |
5259 | begin | |
5260 | if Nkind (N) = N_Selected_Component then | |
5261 | Check_Unit_Name (Prefix (N)); | |
5262 | Check_Unit_Name (Selector_Name (N)); | |
5263 | ||
5264 | elsif Nkind (N) = N_Identifier then | |
5265 | return; | |
5266 | ||
5267 | else | |
5268 | Error_Pragma_Arg | |
5269 | ("wrong form for unit name for No_Dependence", N); | |
5270 | end if; | |
5271 | end Check_Unit_Name; | |
5272 | ||
6e937c1c AC |
5273 | -- Start of processing for Process_Restrictions_Or_Restriction_Warnings |
5274 | ||
5275 | begin | |
36b8f95f | 5276 | -- Ignore all Restrictions pragma in CodePeer mode |
2551782d | 5277 | |
36b8f95f | 5278 | if CodePeer_Mode then |
2551782d AC |
5279 | return; |
5280 | end if; | |
5281 | ||
6e937c1c AC |
5282 | Check_Ada_83_Warning; |
5283 | Check_At_Least_N_Arguments (1); | |
5284 | Check_Valid_Configuration_Pragma; | |
5285 | ||
5286 | Arg := Arg1; | |
5287 | while Present (Arg) loop | |
5288 | Id := Chars (Arg); | |
0f1a6a0b | 5289 | Expr := Get_Pragma_Arg (Arg); |
6e937c1c | 5290 | |
b5e792e2 | 5291 | -- Case of no restriction identifier present |
6e937c1c AC |
5292 | |
5293 | if Id = No_Name then | |
5294 | if Nkind (Expr) /= N_Identifier then | |
5295 | Error_Pragma_Arg | |
5296 | ("invalid form for restriction", Arg); | |
b5e792e2 | 5297 | end if; |
6e937c1c | 5298 | |
b5e792e2 AC |
5299 | R_Id := |
5300 | Get_Restriction_Id | |
cc335f43 | 5301 | (Process_Restriction_Synonyms (Expr)); |
6e937c1c | 5302 | |
b5e792e2 | 5303 | if R_Id not in All_Boolean_Restrictions then |
21d27997 RD |
5304 | Error_Msg_Name_1 := Pname; |
5305 | Error_Msg_N | |
5306 | ("invalid restriction identifier&", Get_Pragma_Arg (Arg)); | |
5307 | ||
5308 | -- Check for possible misspelling | |
5309 | ||
5310 | for J in Restriction_Id loop | |
5311 | declare | |
5312 | Rnm : constant String := Restriction_Id'Image (J); | |
5313 | ||
5314 | begin | |
5315 | Name_Buffer (1 .. Rnm'Length) := Rnm; | |
5316 | Name_Len := Rnm'Length; | |
5317 | Set_Casing (All_Lower_Case); | |
5318 | ||
5319 | if Is_Bad_Spelling_Of (Chars (Expr), Name_Enter) then | |
5320 | Set_Casing | |
5321 | (Identifier_Casing (Current_Source_File)); | |
5322 | Error_Msg_String (1 .. Rnm'Length) := | |
5323 | Name_Buffer (1 .. Name_Len); | |
5324 | Error_Msg_Strlen := Rnm'Length; | |
0c020dde | 5325 | Error_Msg_N -- CODEFIX |
21d27997 RD |
5326 | ("\possible misspelling of ""~""", |
5327 | Get_Pragma_Arg (Arg)); | |
5328 | exit; | |
5329 | end if; | |
5330 | end; | |
5331 | end loop; | |
5332 | ||
5333 | raise Pragma_Exit; | |
b5e792e2 | 5334 | end if; |
6e937c1c | 5335 | |
b5e792e2 | 5336 | if Implementation_Restriction (R_Id) then |
21d27997 | 5337 | Check_Restriction (No_Implementation_Restrictions, Arg); |
b5e792e2 | 5338 | end if; |
6e937c1c | 5339 | |
ac9e9918 RD |
5340 | -- If this is a warning, then set the warning unless we already |
5341 | -- have a real restriction active (we never want a warning to | |
5342 | -- override a real restriction). | |
6e937c1c | 5343 | |
ac9e9918 RD |
5344 | if Warn then |
5345 | if not Restriction_Active (R_Id) then | |
5346 | Set_Restriction (R_Id, N); | |
5347 | Restriction_Warnings (R_Id) := True; | |
5348 | end if; | |
5349 | ||
5350 | -- If real restriction case, then set it and make sure that the | |
5351 | -- restriction warning flag is off, since a real restriction | |
5352 | -- always overrides a warning. | |
6e937c1c | 5353 | |
ac9e9918 RD |
5354 | else |
5355 | Set_Restriction (R_Id, N); | |
5356 | Restriction_Warnings (R_Id) := False; | |
5357 | end if; | |
5358 | ||
b5c739f9 RD |
5359 | -- Check for obsolescent restrictions in Ada 2005 mode |
5360 | ||
5361 | if not Warn | |
5362 | and then Ada_Version >= Ada_2005 | |
5363 | and then (R_Id = No_Asynchronous_Control | |
5364 | or else | |
5365 | R_Id = No_Unchecked_Deallocation | |
5366 | or else | |
5367 | R_Id = No_Unchecked_Conversion) | |
5368 | then | |
5369 | Check_Restriction (No_Obsolescent_Features, N); | |
5370 | end if; | |
5371 | ||
ac9e9918 RD |
5372 | -- A very special case that must be processed here: pragma |
5373 | -- Restrictions (No_Exceptions) turns off all run-time | |
5374 | -- checking. This is a bit dubious in terms of the formal | |
5375 | -- language definition, but it is what is intended by RM | |
5376 | -- H.4(12). Restriction_Warnings never affects generated code | |
5377 | -- so this is done only in the real restriction case. | |
5378 | ||
12b4d338 AC |
5379 | -- Atomic_Synchronization is not a real check, so it is not |
5380 | -- affected by this processing). | |
5381 | ||
ac9e9918 | 5382 | if R_Id = No_Exceptions and then not Warn then |
12b4d338 AC |
5383 | for J in Scope_Suppress'Range loop |
5384 | if J /= Atomic_Synchronization then | |
5385 | Scope_Suppress (J) := True; | |
5386 | end if; | |
5387 | end loop; | |
6e937c1c AC |
5388 | end if; |
5389 | ||
5f3ab6fb AC |
5390 | -- Case of No_Dependence => unit-name. Note that the parser |
5391 | -- already made the necessary entry in the No_Dependence table. | |
5392 | ||
5393 | elsif Id = Name_No_Dependence then | |
5394 | Check_Unit_Name (Expr); | |
5395 | ||
e7fceebc AC |
5396 | -- Case of No_Specification_Of_Aspect => Identifier. |
5397 | ||
5398 | elsif Id = Name_No_Specification_Of_Aspect then | |
5399 | declare | |
5400 | A_Id : Aspect_Id; | |
5401 | ||
5402 | begin | |
5403 | if Nkind (Expr) /= N_Identifier then | |
5404 | A_Id := No_Aspect; | |
5405 | else | |
5406 | A_Id := Get_Aspect_Id (Chars (Expr)); | |
5407 | end if; | |
5408 | ||
5409 | if A_Id = No_Aspect then | |
5410 | Error_Pragma_Arg ("invalid restriction name", Arg); | |
5411 | else | |
5412 | Set_Restriction_No_Specification_Of_Aspect (Expr, Warn); | |
5413 | end if; | |
5414 | end; | |
5415 | ||
5f3ab6fb | 5416 | -- All other cases of restriction identifier present |
6e937c1c AC |
5417 | |
5418 | else | |
cc335f43 | 5419 | R_Id := Get_Restriction_Id (Process_Restriction_Synonyms (Arg)); |
6e937c1c AC |
5420 | Analyze_And_Resolve (Expr, Any_Integer); |
5421 | ||
5422 | if R_Id not in All_Parameter_Restrictions then | |
5423 | Error_Pragma_Arg | |
5424 | ("invalid restriction parameter identifier", Arg); | |
5425 | ||
5426 | elsif not Is_OK_Static_Expression (Expr) then | |
5427 | Flag_Non_Static_Expr | |
5428 | ("value must be static expression!", Expr); | |
5429 | raise Pragma_Exit; | |
5430 | ||
5431 | elsif not Is_Integer_Type (Etype (Expr)) | |
5432 | or else Expr_Value (Expr) < 0 | |
5433 | then | |
5434 | Error_Pragma_Arg | |
5435 | ("value must be non-negative integer", Arg); | |
ac9e9918 | 5436 | end if; |
6e937c1c | 5437 | |
ac9e9918 | 5438 | -- Restriction pragma is active |
6e937c1c | 5439 | |
ac9e9918 | 5440 | Val := Expr_Value (Expr); |
6e937c1c | 5441 | |
ac9e9918 RD |
5442 | if not UI_Is_In_Int_Range (Val) then |
5443 | Error_Pragma_Arg | |
5444 | ("pragma ignored, value too large?", Arg); | |
5445 | end if; | |
5446 | ||
5447 | -- Warning case. If the real restriction is active, then we | |
5448 | -- ignore the request, since warning never overrides a real | |
5449 | -- restriction. Otherwise we set the proper warning. Note that | |
5450 | -- this circuit sets the warning again if it is already set, | |
5451 | -- which is what we want, since the constant may have changed. | |
5452 | ||
5453 | if Warn then | |
5454 | if not Restriction_Active (R_Id) then | |
5455 | Set_Restriction | |
5456 | (R_Id, N, Integer (UI_To_Int (Val))); | |
5457 | Restriction_Warnings (R_Id) := True; | |
6e937c1c | 5458 | end if; |
ac9e9918 RD |
5459 | |
5460 | -- Real restriction case, set restriction and make sure warning | |
5461 | -- flag is off since real restriction always overrides warning. | |
5462 | ||
5463 | else | |
5464 | Set_Restriction (R_Id, N, Integer (UI_To_Int (Val))); | |
5465 | Restriction_Warnings (R_Id) := False; | |
6e937c1c AC |
5466 | end if; |
5467 | end if; | |
5468 | ||
5469 | Next (Arg); | |
5470 | end loop; | |
5471 | end Process_Restrictions_Or_Restriction_Warnings; | |
5472 | ||
996ae0b0 RK |
5473 | --------------------------------- |
5474 | -- Process_Suppress_Unsuppress -- | |
5475 | --------------------------------- | |
5476 | ||
fbf5a39b AC |
5477 | -- Note: this procedure makes entries in the check suppress data |
5478 | -- structures managed by Sem. See spec of package Sem for full | |
5479 | -- details on how we handle recording of check suppression. | |
5480 | ||
996ae0b0 | 5481 | procedure Process_Suppress_Unsuppress (Suppress_Case : Boolean) is |
fbf5a39b AC |
5482 | C : Check_Id; |
5483 | E_Id : Node_Id; | |
5484 | E : Entity_Id; | |
5485 | ||
5486 | In_Package_Spec : constant Boolean := | |
b9b2405f | 5487 | Is_Package_Or_Generic_Package (Current_Scope) |
fbf5a39b | 5488 | and then not In_Package_Body (Current_Scope); |
996ae0b0 RK |
5489 | |
5490 | procedure Suppress_Unsuppress_Echeck (E : Entity_Id; C : Check_Id); | |
5491 | -- Used to suppress a single check on the given entity | |
5492 | ||
fbf5a39b AC |
5493 | -------------------------------- |
5494 | -- Suppress_Unsuppress_Echeck -- | |
5495 | -------------------------------- | |
5496 | ||
996ae0b0 | 5497 | procedure Suppress_Unsuppress_Echeck (E : Entity_Id; C : Check_Id) is |
fbf5a39b | 5498 | begin |
12b4d338 AC |
5499 | -- Check for error of trying to set atomic synchronization for |
5500 | -- a non-atomic variable. | |
5501 | ||
5502 | if C = Atomic_Synchronization | |
5972791c | 5503 | and then not (Is_Atomic (E) or else Has_Atomic_Components (E)) |
12b4d338 AC |
5504 | then |
5505 | Error_Msg_N | |
fb5d63c6 | 5506 | ("pragma & requires atomic type or variable", |
12b4d338 AC |
5507 | Pragma_Identifier (Original_Node (N))); |
5508 | end if; | |
5509 | ||
fbf5a39b | 5510 | Set_Checks_May_Be_Suppressed (E); |
996ae0b0 | 5511 | |
fbf5a39b | 5512 | if In_Package_Spec then |
c690a2ec RD |
5513 | Push_Global_Suppress_Stack_Entry |
5514 | (Entity => E, | |
5515 | Check => C, | |
5516 | Suppress => Suppress_Case); | |
fbf5a39b | 5517 | else |
c690a2ec RD |
5518 | Push_Local_Suppress_Stack_Entry |
5519 | (Entity => E, | |
5520 | Check => C, | |
5521 | Suppress => Suppress_Case); | |
996ae0b0 RK |
5522 | end if; |
5523 | ||
5524 | -- If this is a first subtype, and the base type is distinct, | |
5525 | -- then also set the suppress flags on the base type. | |
5526 | ||
5527 | if Is_First_Subtype (E) | |
5528 | and then Etype (E) /= E | |
5529 | then | |
5530 | Suppress_Unsuppress_Echeck (Etype (E), C); | |
5531 | end if; | |
5532 | end Suppress_Unsuppress_Echeck; | |
5533 | ||
5534 | -- Start of processing for Process_Suppress_Unsuppress | |
5535 | ||
5536 | begin | |
56812278 | 5537 | -- Ignore pragma Suppress/Unsuppress in CodePeer and Alfa modes on |
406935b6 AC |
5538 | -- user code: we want to generate checks for analysis purposes, as |
5539 | -- set respectively by -gnatC and -gnatd.F | |
ddc1515a | 5540 | |
56812278 | 5541 | if (CodePeer_Mode or Alfa_Mode) |
406935b6 AC |
5542 | and then Comes_From_Source (N) |
5543 | then | |
ddc1515a AC |
5544 | return; |
5545 | end if; | |
5546 | ||
b3b9865d AC |
5547 | -- Suppress/Unsuppress can appear as a configuration pragma, or in a |
5548 | -- declarative part or a package spec (RM 11.5(5)). | |
996ae0b0 RK |
5549 | |
5550 | if not Is_Configuration_Pragma then | |
5551 | Check_Is_In_Decl_Part_Or_Package_Spec; | |
5552 | end if; | |
5553 | ||
5554 | Check_At_Least_N_Arguments (1); | |
5555 | Check_At_Most_N_Arguments (2); | |
5556 | Check_No_Identifier (Arg1); | |
5557 | Check_Arg_Is_Identifier (Arg1); | |
5558 | ||
0f1a6a0b | 5559 | C := Get_Check_Id (Chars (Get_Pragma_Arg (Arg1))); |
c690a2ec RD |
5560 | |
5561 | if C = No_Check_Id then | |
996ae0b0 RK |
5562 | Error_Pragma_Arg |
5563 | ("argument of pragma% is not valid check name", Arg1); | |
996ae0b0 RK |
5564 | end if; |
5565 | ||
2fa9443e ES |
5566 | if not Suppress_Case |
5567 | and then (C = All_Checks or else C = Overflow_Check) | |
5568 | then | |
5569 | Opt.Overflow_Checks_Unsuppressed := True; | |
5570 | end if; | |
5571 | ||
996ae0b0 | 5572 | if Arg_Count = 1 then |
996ae0b0 | 5573 | |
fbf5a39b AC |
5574 | -- Make an entry in the local scope suppress table. This is the |
5575 | -- table that directly shows the current value of the scope | |
5576 | -- suppress check for any check id value. | |
996ae0b0 | 5577 | |
fbf5a39b | 5578 | if C = All_Checks then |
f02b8bb8 | 5579 | |
c690a2ec RD |
5580 | -- For All_Checks, we set all specific predefined checks with |
5581 | -- the exception of Elaboration_Check, which is handled | |
5582 | -- specially because of not wanting All_Checks to have the | |
5583 | -- effect of deactivating static elaboration order processing. | |
12b4d338 AC |
5584 | -- Atomic_Synchronization is also not affected, since this is |
5585 | -- not a real check. | |
f02b8bb8 | 5586 | |
dbee7ab9 | 5587 | for J in Scope_Suppress'Range loop |
12b4d338 AC |
5588 | if J /= Elaboration_Check |
5589 | and then J /= Atomic_Synchronization | |
5590 | then | |
f02b8bb8 RD |
5591 | Scope_Suppress (J) := Suppress_Case; |
5592 | end if; | |
dbee7ab9 | 5593 | end loop; |
f02b8bb8 | 5594 | |
c690a2ec RD |
5595 | -- If not All_Checks, and predefined check, then set appropriate |
5596 | -- scope entry. Note that we will set Elaboration_Check if this | |
12b4d338 AC |
5597 | -- is explicitly specified. Atomic_Synchronization is allowed |
5598 | -- only if internally generated and entity is atomic. | |
f02b8bb8 | 5599 | |
12b4d338 AC |
5600 | elsif C in Predefined_Check_Id |
5601 | and then (not Comes_From_Source (N) | |
5602 | or else C /= Atomic_Synchronization) | |
5603 | then | |
fbf5a39b AC |
5604 | Scope_Suppress (C) := Suppress_Case; |
5605 | end if; | |
996ae0b0 | 5606 | |
c690a2ec | 5607 | -- Also make an entry in the Local_Entity_Suppress table |
996ae0b0 | 5608 | |
c690a2ec RD |
5609 | Push_Local_Suppress_Stack_Entry |
5610 | (Entity => Empty, | |
5611 | Check => C, | |
5612 | Suppress => Suppress_Case); | |
996ae0b0 | 5613 | |
c690a2ec RD |
5614 | -- Case of two arguments present, where the check is suppressed for |
5615 | -- a specified entity (given as the second argument of the pragma) | |
996ae0b0 RK |
5616 | |
5617 | else | |
b5c739f9 RD |
5618 | -- This is obsolescent in Ada 2005 mode |
5619 | ||
5620 | if Ada_Version >= Ada_2005 then | |
5621 | Check_Restriction (No_Obsolescent_Features, Arg2); | |
5622 | end if; | |
5623 | ||
996ae0b0 | 5624 | Check_Optional_Identifier (Arg2, Name_On); |
0f1a6a0b | 5625 | E_Id := Get_Pragma_Arg (Arg2); |
996ae0b0 RK |
5626 | Analyze (E_Id); |
5627 | ||
5628 | if not Is_Entity_Name (E_Id) then | |
5629 | Error_Pragma_Arg | |
5630 | ("second argument of pragma% must be entity name", Arg2); | |
5631 | end if; | |
5632 | ||
5633 | E := Entity (E_Id); | |
5634 | ||
5635 | if E = Any_Id then | |
5636 | return; | |
fbf5a39b | 5637 | end if; |
996ae0b0 | 5638 | |
fbf5a39b AC |
5639 | -- Enforce RM 11.5(7) which requires that for a pragma that |
5640 | -- appears within a package spec, the named entity must be | |
5641 | -- within the package spec. We allow the package name itself | |
5642 | -- to be mentioned since that makes sense, although it is not | |
5643 | -- strictly allowed by 11.5(7). | |
996ae0b0 | 5644 | |
fbf5a39b AC |
5645 | if In_Package_Spec |
5646 | and then E /= Current_Scope | |
5647 | and then Scope (E) /= Current_Scope | |
5648 | then | |
5649 | Error_Pragma_Arg | |
c690a2ec | 5650 | ("entity in pragma% is not in package spec (RM 11.5(7))", |
fbf5a39b AC |
5651 | Arg2); |
5652 | end if; | |
996ae0b0 | 5653 | |
fbf5a39b AC |
5654 | -- Loop through homonyms. As noted below, in the case of a package |
5655 | -- spec, only homonyms within the package spec are considered. | |
996ae0b0 | 5656 | |
fbf5a39b AC |
5657 | loop |
5658 | Suppress_Unsuppress_Echeck (E, C); | |
996ae0b0 | 5659 | |
fbf5a39b AC |
5660 | if Is_Generic_Instance (E) |
5661 | and then Is_Subprogram (E) | |
5662 | and then Present (Alias (E)) | |
5663 | then | |
5664 | Suppress_Unsuppress_Echeck (Alias (E), C); | |
5665 | end if; | |
5666 | ||
0f1a6a0b | 5667 | -- Move to next homonym if not aspect spec case |
996ae0b0 | 5668 | |
0f1a6a0b | 5669 | exit when From_Aspect_Specification (N); |
fbf5a39b AC |
5670 | E := Homonym (E); |
5671 | exit when No (E); | |
5672 | ||
b3b9865d AC |
5673 | -- If we are within a package specification, the pragma only |
5674 | -- applies to homonyms in the same scope. | |
fbf5a39b AC |
5675 | |
5676 | exit when In_Package_Spec | |
5677 | and then Scope (E) /= Current_Scope; | |
5678 | end loop; | |
5679 | end if; | |
996ae0b0 RK |
5680 | end Process_Suppress_Unsuppress; |
5681 | ||
5682 | ------------------ | |
5683 | -- Set_Exported -- | |
5684 | ------------------ | |
5685 | ||
5686 | procedure Set_Exported (E : Entity_Id; Arg : Node_Id) is | |
5687 | begin | |
5688 | if Is_Imported (E) then | |
ed2233dc | 5689 | Error_Pragma_Arg |
996ae0b0 RK |
5690 | ("cannot export entity& that was previously imported", Arg); |
5691 | ||
a780db15 | 5692 | elsif Present (Address_Clause (E)) and then not CodePeer_Mode then |
ed2233dc | 5693 | Error_Pragma_Arg |
996ae0b0 RK |
5694 | ("cannot export entity& that has an address clause", Arg); |
5695 | end if; | |
5696 | ||
5697 | Set_Is_Exported (E); | |
5698 | ||
fbf5a39b AC |
5699 | -- Generate a reference for entity explicitly, because the |
5700 | -- identifier may be overloaded and name resolution will not | |
5701 | -- generate one. | |
5702 | ||
5703 | Generate_Reference (E, Arg); | |
5704 | ||
996ae0b0 RK |
5705 | -- Deal with exporting non-library level entity |
5706 | ||
5707 | if not Is_Library_Level_Entity (E) then | |
5708 | ||
5709 | -- Not allowed at all for subprograms | |
5710 | ||
5711 | if Is_Subprogram (E) then | |
ed2233dc | 5712 | Error_Pragma_Arg ("local subprogram& cannot be exported", Arg); |
996ae0b0 RK |
5713 | |
5714 | -- Otherwise set public and statically allocated | |
5715 | ||
5716 | else | |
5717 | Set_Is_Public (E); | |
5718 | Set_Is_Statically_Allocated (E); | |
fbf5a39b | 5719 | |
b3b9865d AC |
5720 | -- Warn if the corresponding W flag is set and the pragma comes |
5721 | -- from source. The latter may not be true e.g. on VMS where we | |
5722 | -- expand export pragmas for exception codes associated with | |
5723 | -- imported or exported exceptions. We do not want to generate | |
5724 | -- a warning for something that the user did not write. | |
af152989 AC |
5725 | |
5726 | if Warn_On_Export_Import | |
5727 | and then Comes_From_Source (Arg) | |
5728 | then | |
fbf5a39b AC |
5729 | Error_Msg_NE |
5730 | ("?& has been made static as a result of Export", Arg, E); | |
5731 | Error_Msg_N | |
5732 | ("\this usage is non-standard and non-portable", Arg); | |
5733 | end if; | |
996ae0b0 RK |
5734 | end if; |
5735 | end if; | |
5736 | ||
fbf5a39b | 5737 | if Warn_On_Export_Import and then Is_Type (E) then |
ed2233dc | 5738 | Error_Msg_NE ("exporting a type has no effect?", Arg, E); |
996ae0b0 RK |
5739 | end if; |
5740 | ||
fbf5a39b AC |
5741 | if Warn_On_Export_Import and Inside_A_Generic then |
5742 | Error_Msg_NE | |
5743 | ("all instances of& will have the same external name?", Arg, E); | |
5744 | end if; | |
996ae0b0 RK |
5745 | end Set_Exported; |
5746 | ||
5747 | ---------------------------------------------- | |
5748 | -- Set_Extended_Import_Export_External_Name -- | |
5749 | ---------------------------------------------- | |
5750 | ||
5751 | procedure Set_Extended_Import_Export_External_Name | |
5752 | (Internal_Ent : Entity_Id; | |
5753 | Arg_External : Node_Id) | |
5754 | is | |
5755 | Old_Name : constant Node_Id := Interface_Name (Internal_Ent); | |
5756 | New_Name : Node_Id; | |
5757 | ||
5758 | begin | |
5759 | if No (Arg_External) then | |
5760 | return; | |
cc335f43 AC |
5761 | end if; |
5762 | ||
5763 | Check_Arg_Is_External_Name (Arg_External); | |
996ae0b0 | 5764 | |
cc335f43 | 5765 | if Nkind (Arg_External) = N_String_Literal then |
996ae0b0 RK |
5766 | if String_Length (Strval (Arg_External)) = 0 then |
5767 | return; | |
5768 | else | |
5769 | New_Name := Adjust_External_Name_Case (Arg_External); | |
5770 | end if; | |
5771 | ||
5772 | elsif Nkind (Arg_External) = N_Identifier then | |
5773 | New_Name := Get_Default_External_Name (Arg_External); | |
5774 | ||
b3b9865d AC |
5775 | -- Check_Arg_Is_External_Name should let through only identifiers and |
5776 | -- string literals or static string expressions (which are folded to | |
5777 | -- string literals). | |
cc335f43 | 5778 | |
996ae0b0 | 5779 | else |
cc335f43 | 5780 | raise Program_Error; |
996ae0b0 RK |
5781 | end if; |
5782 | ||
b3b9865d AC |
5783 | -- If we already have an external name set (by a prior normal Import |
5784 | -- or Export pragma), then the external names must match | |
996ae0b0 RK |
5785 | |
5786 | if Present (Interface_Name (Internal_Ent)) then | |
2c9beb8a | 5787 | Check_Matching_Internal_Names : declare |
996ae0b0 RK |
5788 | S1 : constant String_Id := Strval (Old_Name); |
5789 | S2 : constant String_Id := Strval (New_Name); | |
5790 | ||
5791 | procedure Mismatch; | |
5792 | -- Called if names do not match | |
5793 | ||
2c9beb8a RD |
5794 | -------------- |
5795 | -- Mismatch -- | |
5796 | -------------- | |
5797 | ||
996ae0b0 RK |
5798 | procedure Mismatch is |
5799 | begin | |
5800 | Error_Msg_Sloc := Sloc (Old_Name); | |
5801 | Error_Pragma_Arg | |
5802 | ("external name does not match that given #", | |
5803 | Arg_External); | |
5804 | end Mismatch; | |
5805 | ||
2c9beb8a RD |
5806 | -- Start of processing for Check_Matching_Internal_Names |
5807 | ||
996ae0b0 RK |
5808 | begin |
5809 | if String_Length (S1) /= String_Length (S2) then | |
5810 | Mismatch; | |
5811 | ||
5812 | else | |
5813 | for J in 1 .. String_Length (S1) loop | |
5814 | if Get_String_Char (S1, J) /= Get_String_Char (S2, J) then | |
5815 | Mismatch; | |
5816 | end if; | |
5817 | end loop; | |
5818 | end if; | |
2c9beb8a | 5819 | end Check_Matching_Internal_Names; |
996ae0b0 RK |
5820 | |
5821 | -- Otherwise set the given name | |
5822 | ||
5823 | else | |
5824 | Set_Encoded_Interface_Name (Internal_Ent, New_Name); | |
523456db | 5825 | Check_Duplicated_Export_Name (New_Name); |
996ae0b0 | 5826 | end if; |
996ae0b0 RK |
5827 | end Set_Extended_Import_Export_External_Name; |
5828 | ||
5829 | ------------------ | |
5830 | -- Set_Imported -- | |
5831 | ------------------ | |
5832 | ||
5833 | procedure Set_Imported (E : Entity_Id) is | |
5834 | begin | |
c690a2ec | 5835 | -- Error message if already imported or exported |
996ae0b0 RK |
5836 | |
5837 | if Is_Exported (E) or else Is_Imported (E) then | |
c28408b7 RD |
5838 | |
5839 | -- Error if being set Exported twice | |
5840 | ||
996ae0b0 | 5841 | if Is_Exported (E) then |
c690a2ec | 5842 | Error_Msg_NE ("entity& was previously exported", N, E); |
c28408b7 RD |
5843 | |
5844 | -- OK if Import/Interface case | |
5845 | ||
5846 | elsif Import_Interface_Present (N) then | |
5847 | goto OK; | |
5848 | ||
5849 | -- Error if being set Imported twice | |
5850 | ||
996ae0b0 | 5851 | else |
c690a2ec | 5852 | Error_Msg_NE ("entity& was previously imported", N, E); |
996ae0b0 RK |
5853 | end if; |
5854 | ||
1b24ada5 | 5855 | Error_Msg_Name_1 := Pname; |
c690a2ec RD |
5856 | Error_Msg_N |
5857 | ("\(pragma% applies to all previous entities)", N); | |
5858 | ||
5859 | Error_Msg_Sloc := Sloc (E); | |
ed2233dc | 5860 | Error_Msg_NE ("\import not allowed for& declared#", N, E); |
c690a2ec RD |
5861 | |
5862 | -- Here if not previously imported or exported, OK to import | |
996ae0b0 RK |
5863 | |
5864 | else | |
5865 | Set_Is_Imported (E); | |
5866 | ||
b3b9865d AC |
5867 | -- If the entity is an object that is not at the library level, |
5868 | -- then it is statically allocated. We do not worry about objects | |
5869 | -- with address clauses in this context since they are not really | |
5870 | -- imported in the linker sense. | |
996ae0b0 RK |
5871 | |
5872 | if Is_Object (E) | |
5873 | and then not Is_Library_Level_Entity (E) | |
5874 | and then No (Address_Clause (E)) | |
5875 | then | |
5876 | Set_Is_Statically_Allocated (E); | |
5877 | end if; | |
5878 | end if; | |
c28408b7 RD |
5879 | |
5880 | <<OK>> null; | |
996ae0b0 RK |
5881 | end Set_Imported; |
5882 | ||
5883 | ------------------------- | |
5884 | -- Set_Mechanism_Value -- | |
5885 | ------------------------- | |
5886 | ||
b3b9865d AC |
5887 | -- Note: the mechanism name has not been analyzed (and cannot indeed be |
5888 | -- analyzed, since it is semantic nonsense), so we get it in the exact | |
5889 | -- form created by the parser. | |
996ae0b0 RK |
5890 | |
5891 | procedure Set_Mechanism_Value (Ent : Entity_Id; Mech_Name : Node_Id) is | |
292beb8f AC |
5892 | Class : Node_Id; |
5893 | Param : Node_Id; | |
d628c015 | 5894 | Mech_Name_Id : Name_Id; |
996ae0b0 RK |
5895 | |
5896 | procedure Bad_Class; | |
5897 | -- Signal bad descriptor class name | |
5898 | ||
5899 | procedure Bad_Mechanism; | |
5900 | -- Signal bad mechanism name | |
5901 | ||
2c9beb8a RD |
5902 | --------------- |
5903 | -- Bad_Class -- | |
5904 | --------------- | |
5905 | ||
996ae0b0 RK |
5906 | procedure Bad_Class is |
5907 | begin | |
5908 | Error_Pragma_Arg ("unrecognized descriptor class name", Class); | |
5909 | end Bad_Class; | |
5910 | ||
2c9beb8a RD |
5911 | ------------------------- |
5912 | -- Bad_Mechanism_Value -- | |
5913 | ------------------------- | |
5914 | ||
996ae0b0 RK |
5915 | procedure Bad_Mechanism is |
5916 | begin | |
5917 | Error_Pragma_Arg ("unrecognized mechanism name", Mech_Name); | |
5918 | end Bad_Mechanism; | |
5919 | ||
5920 | -- Start of processing for Set_Mechanism_Value | |
5921 | ||
5922 | begin | |
5923 | if Mechanism (Ent) /= Default_Mechanism then | |
5924 | Error_Msg_NE | |
5925 | ("mechanism for & has already been set", Mech_Name, Ent); | |
5926 | end if; | |
5927 | ||
d628c015 DR |
5928 | -- MECHANISM_NAME ::= value | reference | descriptor | |
5929 | -- short_descriptor | |
996ae0b0 RK |
5930 | |
5931 | if Nkind (Mech_Name) = N_Identifier then | |
5932 | if Chars (Mech_Name) = Name_Value then | |
5933 | Set_Mechanism (Ent, By_Copy); | |
5934 | return; | |
5935 | ||
5936 | elsif Chars (Mech_Name) = Name_Reference then | |
5937 | Set_Mechanism (Ent, By_Reference); | |
5938 | return; | |
5939 | ||
5940 | elsif Chars (Mech_Name) = Name_Descriptor then | |
5941 | Check_VMS (Mech_Name); | |
292beb8f AC |
5942 | |
5943 | -- Descriptor => Short_Descriptor if pragma was given | |
5944 | ||
5945 | if Short_Descriptors then | |
5946 | Set_Mechanism (Ent, By_Short_Descriptor); | |
5947 | else | |
5948 | Set_Mechanism (Ent, By_Descriptor); | |
5949 | end if; | |
5950 | ||
996ae0b0 RK |
5951 | return; |
5952 | ||
d628c015 DR |
5953 | elsif Chars (Mech_Name) = Name_Short_Descriptor then |
5954 | Check_VMS (Mech_Name); | |
5955 | Set_Mechanism (Ent, By_Short_Descriptor); | |
5956 | return; | |
5957 | ||
996ae0b0 RK |
5958 | elsif Chars (Mech_Name) = Name_Copy then |
5959 | Error_Pragma_Arg | |
5960 | ("bad mechanism name, Value assumed", Mech_Name); | |
5961 | ||
5962 | else | |
5963 | Bad_Mechanism; | |
5964 | end if; | |
5965 | ||
d628c015 DR |
5966 | -- MECHANISM_NAME ::= descriptor (CLASS_NAME) | |
5967 | -- short_descriptor (CLASS_NAME) | |
996ae0b0 RK |
5968 | -- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca |
5969 | ||
5970 | -- Note: this form is parsed as an indexed component | |
5971 | ||
5972 | elsif Nkind (Mech_Name) = N_Indexed_Component then | |
5973 | Class := First (Expressions (Mech_Name)); | |
5974 | ||
5975 | if Nkind (Prefix (Mech_Name)) /= N_Identifier | |
d628c015 DR |
5976 | or else not (Chars (Prefix (Mech_Name)) = Name_Descriptor or else |
5977 | Chars (Prefix (Mech_Name)) = Name_Short_Descriptor) | |
5978 | or else Present (Next (Class)) | |
996ae0b0 RK |
5979 | then |
5980 | Bad_Mechanism; | |
d628c015 DR |
5981 | else |
5982 | Mech_Name_Id := Chars (Prefix (Mech_Name)); | |
292beb8f AC |
5983 | |
5984 | -- Change Descriptor => Short_Descriptor if pragma was given | |
5985 | ||
5986 | if Mech_Name_Id = Name_Descriptor | |
5987 | and then Short_Descriptors | |
5988 | then | |
5989 | Mech_Name_Id := Name_Short_Descriptor; | |
5990 | end if; | |
996ae0b0 RK |
5991 | end if; |
5992 | ||
d628c015 DR |
5993 | -- MECHANISM_NAME ::= descriptor (Class => CLASS_NAME) | |
5994 | -- short_descriptor (Class => CLASS_NAME) | |
996ae0b0 RK |
5995 | -- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca |
5996 | ||
5997 | -- Note: this form is parsed as a function call | |
5998 | ||
5999 | elsif Nkind (Mech_Name) = N_Function_Call then | |
996ae0b0 RK |
6000 | Param := First (Parameter_Associations (Mech_Name)); |
6001 | ||
6002 | if Nkind (Name (Mech_Name)) /= N_Identifier | |
d628c015 DR |
6003 | or else not (Chars (Name (Mech_Name)) = Name_Descriptor or else |
6004 | Chars (Name (Mech_Name)) = Name_Short_Descriptor) | |
996ae0b0 RK |
6005 | or else Present (Next (Param)) |
6006 | or else No (Selector_Name (Param)) | |
6007 | or else Chars (Selector_Name (Param)) /= Name_Class | |
6008 | then | |
6009 | Bad_Mechanism; | |
6010 | else | |
6011 | Class := Explicit_Actual_Parameter (Param); | |
d628c015 | 6012 | Mech_Name_Id := Chars (Name (Mech_Name)); |
996ae0b0 RK |
6013 | end if; |
6014 | ||
6015 | else | |
6016 | Bad_Mechanism; | |
6017 | end if; | |
6018 | ||
6019 | -- Fall through here with Class set to descriptor class name | |
6020 | ||
6021 | Check_VMS (Mech_Name); | |
6022 | ||
6023 | if Nkind (Class) /= N_Identifier then | |
6024 | Bad_Class; | |
6025 | ||
d628c015 | 6026 | elsif Mech_Name_Id = Name_Descriptor |
292beb8f | 6027 | and then Chars (Class) = Name_UBS |
d628c015 | 6028 | then |
996ae0b0 RK |
6029 | Set_Mechanism (Ent, By_Descriptor_UBS); |
6030 | ||
d628c015 | 6031 | elsif Mech_Name_Id = Name_Descriptor |
292beb8f | 6032 | and then Chars (Class) = Name_UBSB |
d628c015 | 6033 | then |
996ae0b0 RK |
6034 | Set_Mechanism (Ent, By_Descriptor_UBSB); |
6035 | ||
d628c015 | 6036 | elsif Mech_Name_Id = Name_Descriptor |
292beb8f | 6037 | and then Chars (Class) = Name_UBA |
d628c015 | 6038 | then |
996ae0b0 RK |
6039 | Set_Mechanism (Ent, By_Descriptor_UBA); |
6040 | ||
d628c015 | 6041 | elsif Mech_Name_Id = Name_Descriptor |
292beb8f | 6042 | and then Chars (Class) = Name_S |
d628c015 | 6043 | then |
996ae0b0 RK |
6044 | Set_Mechanism (Ent, By_Descriptor_S); |
6045 | ||
d628c015 | 6046 | elsif Mech_Name_Id = Name_Descriptor |
292beb8f | 6047 | and then Chars (Class) = Name_SB |
d628c015 | 6048 | then |
996ae0b0 RK |
6049 | Set_Mechanism (Ent, By_Descriptor_SB); |
6050 | ||
d628c015 | 6051 | elsif Mech_Name_Id = Name_Descriptor |
292beb8f | 6052 | and then Chars (Class) = Name_A |
d628c015 | 6053 | then |
996ae0b0 RK |
6054 | Set_Mechanism (Ent, By_Descriptor_A); |
6055 | ||
d628c015 | 6056 | elsif Mech_Name_Id = Name_Descriptor |
292beb8f | 6057 | and then Chars (Class) = Name_NCA |
d628c015 | 6058 | then |
996ae0b0 RK |
6059 | Set_Mechanism (Ent, By_Descriptor_NCA); |
6060 | ||
d628c015 | 6061 | elsif Mech_Name_Id = Name_Short_Descriptor |
292beb8f | 6062 | and then Chars (Class) = Name_UBS |
d628c015 DR |
6063 | then |
6064 | Set_Mechanism (Ent, By_Short_Descriptor_UBS); | |
6065 | ||
6066 | elsif Mech_Name_Id = Name_Short_Descriptor | |
292beb8f | 6067 | and then Chars (Class) = Name_UBSB |
d628c015 DR |
6068 | then |
6069 | Set_Mechanism (Ent, By_Short_Descriptor_UBSB); | |
6070 | ||
6071 | elsif Mech_Name_Id = Name_Short_Descriptor | |
292beb8f | 6072 | and then Chars (Class) = Name_UBA |
d628c015 DR |
6073 | then |
6074 | Set_Mechanism (Ent, By_Short_Descriptor_UBA); | |
6075 | ||
6076 | elsif Mech_Name_Id = Name_Short_Descriptor | |
292beb8f | 6077 | and then Chars (Class) = Name_S |
d628c015 DR |
6078 | then |
6079 | Set_Mechanism (Ent, By_Short_Descriptor_S); | |
6080 | ||
6081 | elsif Mech_Name_Id = Name_Short_Descriptor | |
292beb8f | 6082 | and then Chars (Class) = Name_SB |
d628c015 DR |
6083 | then |
6084 | Set_Mechanism (Ent, By_Short_Descriptor_SB); | |
6085 | ||
6086 | elsif Mech_Name_Id = Name_Short_Descriptor | |
292beb8f | 6087 | and then Chars (Class) = Name_A |
d628c015 DR |
6088 | then |
6089 | Set_Mechanism (Ent, By_Short_Descriptor_A); | |
6090 | ||
6091 | elsif Mech_Name_Id = Name_Short_Descriptor | |
292beb8f | 6092 | and then Chars (Class) = Name_NCA |
d628c015 DR |
6093 | then |
6094 | Set_Mechanism (Ent, By_Short_Descriptor_NCA); | |
6095 | ||
996ae0b0 RK |
6096 | else |
6097 | Bad_Class; | |
6098 | end if; | |
996ae0b0 RK |
6099 | end Set_Mechanism_Value; |
6100 | ||
8a36a0cc AC |
6101 | --------------------------- |
6102 | -- Set_Ravenscar_Profile -- | |
6103 | --------------------------- | |
6104 | ||
6105 | -- The tasks to be done here are | |
6106 | ||
6107 | -- Set required policies | |
6108 | ||
6109 | -- pragma Task_Dispatching_Policy (FIFO_Within_Priorities) | |
6110 | -- pragma Locking_Policy (Ceiling_Locking) | |
6111 | ||
0da2c8ac | 6112 | -- Set Detect_Blocking mode |
8a36a0cc | 6113 | |
cc335f43 | 6114 | -- Set required restrictions (see System.Rident for detailed list) |
8a36a0cc | 6115 | |
7fc53871 AC |
6116 | -- Set the No_Dependence rules |
6117 | -- No_Dependence => Ada.Asynchronous_Task_Control | |
6118 | -- No_Dependence => Ada.Calendar | |
6119 | -- No_Dependence => Ada.Execution_Time.Group_Budget | |
6120 | -- No_Dependence => Ada.Execution_Time.Timers | |
6121 | -- No_Dependence => Ada.Task_Attributes | |
6122 | -- No_Dependence => System.Multiprocessors.Dispatching_Domains | |
6123 | ||
8a36a0cc | 6124 | procedure Set_Ravenscar_Profile (N : Node_Id) is |
7fc53871 AC |
6125 | Prefix_Entity : Entity_Id; |
6126 | Selector_Entity : Entity_Id; | |
6127 | Prefix_Node : Node_Id; | |
6128 | Node : Node_Id; | |
6129 | ||
8a36a0cc AC |
6130 | begin |
6131 | -- pragma Task_Dispatching_Policy (FIFO_Within_Priorities) | |
6132 | ||
6133 | if Task_Dispatching_Policy /= ' ' | |
6134 | and then Task_Dispatching_Policy /= 'F' | |
6135 | then | |
6136 | Error_Msg_Sloc := Task_Dispatching_Policy_Sloc; | |
6137 | Error_Pragma ("Profile (Ravenscar) incompatible with policy#"); | |
6138 | ||
57193e09 TQ |
6139 | -- Set the FIFO_Within_Priorities policy, but always preserve |
6140 | -- System_Location since we like the error message with the run time | |
6141 | -- name. | |
8a36a0cc AC |
6142 | |
6143 | else | |
6144 | Task_Dispatching_Policy := 'F'; | |
6145 | ||
6146 | if Task_Dispatching_Policy_Sloc /= System_Location then | |
6147 | Task_Dispatching_Policy_Sloc := Loc; | |
6148 | end if; | |
6149 | end if; | |
6150 | ||
6151 | -- pragma Locking_Policy (Ceiling_Locking) | |
6152 | ||
6153 | if Locking_Policy /= ' ' | |
6154 | and then Locking_Policy /= 'C' | |
6155 | then | |
6156 | Error_Msg_Sloc := Locking_Policy_Sloc; | |
6157 | Error_Pragma ("Profile (Ravenscar) incompatible with policy#"); | |
6158 | ||
57193e09 TQ |
6159 | -- Set the Ceiling_Locking policy, but preserve System_Location since |
6160 | -- we like the error message with the run time name. | |
8a36a0cc AC |
6161 | |
6162 | else | |
6163 | Locking_Policy := 'C'; | |
6164 | ||
6165 | if Locking_Policy_Sloc /= System_Location then | |
6166 | Locking_Policy_Sloc := Loc; | |
6167 | end if; | |
6168 | end if; | |
6169 | ||
0da2c8ac AC |
6170 | -- pragma Detect_Blocking |
6171 | ||
6172 | Detect_Blocking := True; | |
8a36a0cc AC |
6173 | |
6174 | -- Set the corresponding restrictions | |
6175 | ||
23e6615e RD |
6176 | Set_Profile_Restrictions |
6177 | (Ravenscar, N, Warn => Treat_Restrictions_As_Warnings); | |
7fc53871 AC |
6178 | |
6179 | -- Set the No_Dependence restrictions | |
6180 | ||
6181 | -- The following No_Dependence restrictions: | |
6182 | -- No_Dependence => Ada.Asynchronous_Task_Control | |
6183 | -- No_Dependence => Ada.Calendar | |
6184 | -- No_Dependence => Ada.Task_Attributes | |
6185 | -- are already set by previous call to Set_Profile_Restrictions. | |
6186 | ||
6187 | -- Set the following restrictions which were added to Ada 2005: | |
6188 | -- No_Dependence => Ada.Execution_Time.Group_Budget | |
6189 | -- No_Dependence => Ada.Execution_Time.Timers | |
6190 | ||
6191 | if Ada_Version >= Ada_2005 then | |
6192 | Name_Buffer (1 .. 3) := "ada"; | |
6193 | Name_Len := 3; | |
6194 | ||
6195 | Prefix_Entity := Make_Identifier (Loc, Name_Find); | |
6196 | ||
6197 | Name_Buffer (1 .. 14) := "execution_time"; | |
6198 | Name_Len := 14; | |
6199 | ||
6200 | Selector_Entity := Make_Identifier (Loc, Name_Find); | |
6201 | ||
6202 | Prefix_Node := | |
6203 | Make_Selected_Component | |
6204 | (Sloc => Loc, | |
6205 | Prefix => Prefix_Entity, | |
6206 | Selector_Name => Selector_Entity); | |
6207 | ||
6208 | Name_Buffer (1 .. 13) := "group_budgets"; | |
6209 | Name_Len := 13; | |
6210 | ||
6211 | Selector_Entity := Make_Identifier (Loc, Name_Find); | |
6212 | ||
6213 | Node := | |
6214 | Make_Selected_Component | |
6215 | (Sloc => Loc, | |
6216 | Prefix => Prefix_Node, | |
6217 | Selector_Name => Selector_Entity); | |
6218 | ||
6219 | Set_Restriction_No_Dependence | |
6220 | (Unit => Node, | |
6221 | Warn => Treat_Restrictions_As_Warnings, | |
6222 | Profile => Ravenscar); | |
6223 | ||
6224 | Name_Buffer (1 .. 6) := "timers"; | |
6225 | Name_Len := 6; | |
6226 | ||
6227 | Selector_Entity := Make_Identifier (Loc, Name_Find); | |
6228 | ||
6229 | Node := | |
6230 | Make_Selected_Component | |
6231 | (Sloc => Loc, | |
6232 | Prefix => Prefix_Node, | |
6233 | Selector_Name => Selector_Entity); | |
6234 | ||
6235 | Set_Restriction_No_Dependence | |
6236 | (Unit => Node, | |
6237 | Warn => Treat_Restrictions_As_Warnings, | |
6238 | Profile => Ravenscar); | |
6239 | end if; | |
6240 | ||
6241 | -- Set the following restrictions which was added to Ada 2012 (see | |
6242 | -- AI-0171): | |
6243 | -- No_Dependence => System.Multiprocessors.Dispatching_Domains | |
6244 | ||
6245 | if Ada_Version >= Ada_2012 then | |
6246 | Name_Buffer (1 .. 6) := "system"; | |
6247 | Name_Len := 6; | |
6248 | ||
6249 | Prefix_Entity := Make_Identifier (Loc, Name_Find); | |
6250 | ||
6251 | Name_Buffer (1 .. 15) := "multiprocessors"; | |
6252 | Name_Len := 15; | |
6253 | ||
6254 | Selector_Entity := Make_Identifier (Loc, Name_Find); | |
6255 | ||
6256 | Prefix_Node := | |
6257 | Make_Selected_Component | |
6258 | (Sloc => Loc, | |
6259 | Prefix => Prefix_Entity, | |
6260 | Selector_Name => Selector_Entity); | |
6261 | ||
6262 | Name_Buffer (1 .. 19) := "dispatching_domains"; | |
6263 | Name_Len := 19; | |
6264 | ||
6265 | Selector_Entity := Make_Identifier (Loc, Name_Find); | |
6266 | ||
6267 | Node := | |
6268 | Make_Selected_Component | |
6269 | (Sloc => Loc, | |
6270 | Prefix => Prefix_Node, | |
6271 | Selector_Name => Selector_Entity); | |
6272 | ||
6273 | Set_Restriction_No_Dependence | |
6274 | (Unit => Node, | |
6275 | Warn => Treat_Restrictions_As_Warnings, | |
6276 | Profile => Ravenscar); | |
6277 | end if; | |
8a36a0cc AC |
6278 | end Set_Ravenscar_Profile; |
6279 | ||
996ae0b0 RK |
6280 | -- Start of processing for Analyze_Pragma |
6281 | ||
6282 | begin | |
d8b962d8 AC |
6283 | -- The following code is a defense against recursion. Not clear that |
6284 | -- this can happen legitimately, but perhaps some error situations | |
6285 | -- can cause it, and we did see this recursion during testing. | |
6286 | ||
6287 | if Analyzed (N) then | |
6288 | return; | |
6289 | else | |
6290 | Set_Analyzed (N, True); | |
6291 | end if; | |
6292 | ||
c690a2ec RD |
6293 | -- Deal with unrecognized pragma |
6294 | ||
ba759acd AC |
6295 | Pname := Pragma_Name (N); |
6296 | ||
1b24ada5 | 6297 | if not Is_Pragma_Name (Pname) then |
fbf5a39b | 6298 | if Warn_On_Unrecognized_Pragma then |
1b24ada5 | 6299 | Error_Msg_Name_1 := Pname; |
470cd9e9 | 6300 | Error_Msg_N ("?unrecognized pragma%!", Pragma_Identifier (N)); |
c690a2ec RD |
6301 | |
6302 | for PN in First_Pragma_Name .. Last_Pragma_Name loop | |
1b24ada5 | 6303 | if Is_Bad_Spelling_Of (Pname, PN) then |
c690a2ec | 6304 | Error_Msg_Name_1 := PN; |
0c020dde | 6305 | Error_Msg_N -- CODEFIX |
470cd9e9 | 6306 | ("\?possible misspelling of %!", Pragma_Identifier (N)); |
c690a2ec RD |
6307 | exit; |
6308 | end if; | |
6309 | end loop; | |
fbf5a39b | 6310 | end if; |
c690a2ec RD |
6311 | |
6312 | return; | |
996ae0b0 RK |
6313 | end if; |
6314 | ||
c690a2ec RD |
6315 | -- Here to start processing for recognized pragma |
6316 | ||
1b24ada5 | 6317 | Prag_Id := Get_Pragma_Id (Pname); |
c690a2ec | 6318 | |
ba759acd AC |
6319 | if Present (Corresponding_Aspect (N)) then |
6320 | Pname := Chars (Identifier (Corresponding_Aspect (N))); | |
6321 | end if; | |
6322 | ||
996ae0b0 RK |
6323 | -- Preset arguments |
6324 | ||
3d6c3bd7 | 6325 | Arg_Count := 0; |
1c54829e AC |
6326 | Arg1 := Empty; |
6327 | Arg2 := Empty; | |
6328 | Arg3 := Empty; | |
6329 | Arg4 := Empty; | |
996ae0b0 RK |
6330 | |
6331 | if Present (Pragma_Argument_Associations (N)) then | |
3d6c3bd7 | 6332 | Arg_Count := List_Length (Pragma_Argument_Associations (N)); |
996ae0b0 RK |
6333 | Arg1 := First (Pragma_Argument_Associations (N)); |
6334 | ||
6335 | if Present (Arg1) then | |
6336 | Arg2 := Next (Arg1); | |
6337 | ||
6338 | if Present (Arg2) then | |
6339 | Arg3 := Next (Arg2); | |
6340 | ||
6341 | if Present (Arg3) then | |
6342 | Arg4 := Next (Arg3); | |
6343 | end if; | |
6344 | end if; | |
6345 | end if; | |
6346 | end if; | |
6347 | ||
996ae0b0 | 6348 | -- An enumeration type defines the pragmas that are supported by the |
f3d57416 | 6349 | -- implementation. Get_Pragma_Id (in package Prag) transforms a name |
996ae0b0 RK |
6350 | -- into the corresponding enumeration value for the following case. |
6351 | ||
6352 | case Prag_Id is | |
6353 | ||
6354 | ----------------- | |
6355 | -- Abort_Defer -- | |
6356 | ----------------- | |
6357 | ||
6358 | -- pragma Abort_Defer; | |
6359 | ||
6360 | when Pragma_Abort_Defer => | |
6361 | GNAT_Pragma; | |
6362 | Check_Arg_Count (0); | |
6363 | ||
6364 | -- The only required semantic processing is to check the | |
6365 | -- placement. This pragma must appear at the start of the | |
6366 | -- statement sequence of a handled sequence of statements. | |
6367 | ||
6368 | if Nkind (Parent (N)) /= N_Handled_Sequence_Of_Statements | |
6369 | or else N /= First (Statements (Parent (N))) | |
6370 | then | |
6371 | Pragma_Misplaced; | |
6372 | end if; | |
6373 | ||
6374 | ------------ | |
6375 | -- Ada_83 -- | |
6376 | ------------ | |
6377 | ||
6378 | -- pragma Ada_83; | |
6379 | ||
6380 | -- Note: this pragma also has some specific processing in Par.Prag | |
0ab80019 | 6381 | -- because we want to set the Ada version mode during parsing. |
996ae0b0 RK |
6382 | |
6383 | when Pragma_Ada_83 => | |
6384 | GNAT_Pragma; | |
c690a2ec RD |
6385 | Check_Arg_Count (0); |
6386 | ||
6387 | -- We really should check unconditionally for proper configuration | |
6388 | -- pragma placement, since we really don't want mixed Ada modes | |
6389 | -- within a single unit, and the GNAT reference manual has always | |
6390 | -- said this was a configuration pragma, but we did not check and | |
6391 | -- are hesitant to add the check now. | |
6392 | ||
0eed45bb AC |
6393 | -- However, we really cannot tolerate mixing Ada 2005 or Ada 2012 |
6394 | -- with Ada 83 or Ada 95, so we must check if we are in Ada 2005 | |
6395 | -- or Ada 2012 mode. | |
c690a2ec | 6396 | |
0791fbe9 | 6397 | if Ada_Version >= Ada_2005 then |
c690a2ec RD |
6398 | Check_Valid_Configuration_Pragma; |
6399 | end if; | |
6400 | ||
6401 | -- Now set Ada 83 mode | |
6402 | ||
0ab80019 | 6403 | Ada_Version := Ada_83; |
59e5fbe0 | 6404 | Ada_Version_Explicit := Ada_Version; |
996ae0b0 RK |
6405 | |
6406 | ------------ | |
6407 | -- Ada_95 -- | |
6408 | ------------ | |
6409 | ||
6410 | -- pragma Ada_95; | |
6411 | ||
6412 | -- Note: this pragma also has some specific processing in Par.Prag | |
0ab80019 | 6413 | -- because we want to set the Ada 83 version mode during parsing. |
996ae0b0 RK |
6414 | |
6415 | when Pragma_Ada_95 => | |
6416 | GNAT_Pragma; | |
c690a2ec RD |
6417 | Check_Arg_Count (0); |
6418 | ||
6419 | -- We really should check unconditionally for proper configuration | |
6420 | -- pragma placement, since we really don't want mixed Ada modes | |
6421 | -- within a single unit, and the GNAT reference manual has always | |
6422 | -- said this was a configuration pragma, but we did not check and | |
6423 | -- are hesitant to add the check now. | |
6424 | ||
6425 | -- However, we really cannot tolerate mixing Ada 2005 with Ada 83 | |
6426 | -- or Ada 95, so we must check if we are in Ada 2005 mode. | |
6427 | ||
0791fbe9 | 6428 | if Ada_Version >= Ada_2005 then |
c690a2ec RD |
6429 | Check_Valid_Configuration_Pragma; |
6430 | end if; | |
6431 | ||
6432 | -- Now set Ada 95 mode | |
6433 | ||
0ab80019 | 6434 | Ada_Version := Ada_95; |
59e5fbe0 | 6435 | Ada_Version_Explicit := Ada_Version; |
0ab80019 | 6436 | |
57193e09 TQ |
6437 | --------------------- |
6438 | -- Ada_05/Ada_2005 -- | |
6439 | --------------------- | |
0ab80019 AC |
6440 | |
6441 | -- pragma Ada_05; | |
82c80734 | 6442 | -- pragma Ada_05 (LOCAL_NAME); |
0ab80019 | 6443 | |
57193e09 TQ |
6444 | -- pragma Ada_2005; |
6445 | -- pragma Ada_2005 (LOCAL_NAME): | |
6446 | ||
599a7411 | 6447 | -- Note: these pragmas also have some specific processing in Par.Prag |
82c80734 RD |
6448 | -- because we want to set the Ada 2005 version mode during parsing. |
6449 | ||
57193e09 | 6450 | when Pragma_Ada_05 | Pragma_Ada_2005 => declare |
82c80734 | 6451 | E_Id : Node_Id; |
0ab80019 | 6452 | |
82c80734 | 6453 | begin |
0ab80019 | 6454 | GNAT_Pragma; |
82c80734 RD |
6455 | |
6456 | if Arg_Count = 1 then | |
6457 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 6458 | E_Id := Get_Pragma_Arg (Arg1); |
82c80734 RD |
6459 | |
6460 | if Etype (E_Id) = Any_Type then | |
6461 | return; | |
6462 | end if; | |
6463 | ||
ac9e9918 | 6464 | Set_Is_Ada_2005_Only (Entity (E_Id)); |
82c80734 RD |
6465 | |
6466 | else | |
82c80734 | 6467 | Check_Arg_Count (0); |
c690a2ec RD |
6468 | |
6469 | -- For Ada_2005 we unconditionally enforce the documented | |
6470 | -- configuration pragma placement, since we do not want to | |
6471 | -- tolerate mixed modes in a unit involving Ada 2005. That | |
6472 | -- would cause real difficulties for those cases where there | |
6473 | -- are incompatibilities between Ada 95 and Ada 2005. | |
6474 | ||
6475 | Check_Valid_Configuration_Pragma; | |
6476 | ||
0f1a6a0b AC |
6477 | -- Now set appropriate Ada mode |
6478 | ||
eaba57fb | 6479 | Ada_Version := Ada_2005; |
0791fbe9 | 6480 | Ada_Version_Explicit := Ada_2005; |
82c80734 RD |
6481 | end if; |
6482 | end; | |
996ae0b0 | 6483 | |
0eed45bb AC |
6484 | --------------------- |
6485 | -- Ada_12/Ada_2012 -- | |
6486 | --------------------- | |
6487 | ||
6488 | -- pragma Ada_12; | |
599a7411 AC |
6489 | -- pragma Ada_12 (LOCAL_NAME); |
6490 | ||
0eed45bb | 6491 | -- pragma Ada_2012; |
599a7411 | 6492 | -- pragma Ada_2012 (LOCAL_NAME): |
0eed45bb | 6493 | |
599a7411 | 6494 | -- Note: these pragmas also have some specific processing in Par.Prag |
0eed45bb AC |
6495 | -- because we want to set the Ada 2012 version mode during parsing. |
6496 | ||
599a7411 AC |
6497 | when Pragma_Ada_12 | Pragma_Ada_2012 => declare |
6498 | E_Id : Node_Id; | |
6499 | ||
6500 | begin | |
0eed45bb | 6501 | GNAT_Pragma; |
0eed45bb | 6502 | |
599a7411 AC |
6503 | if Arg_Count = 1 then |
6504 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 6505 | E_Id := Get_Pragma_Arg (Arg1); |
599a7411 AC |
6506 | |
6507 | if Etype (E_Id) = Any_Type then | |
6508 | return; | |
6509 | end if; | |
6510 | ||
6511 | Set_Is_Ada_2012_Only (Entity (E_Id)); | |
0eed45bb | 6512 | |
599a7411 AC |
6513 | else |
6514 | Check_Arg_Count (0); | |
0eed45bb | 6515 | |
599a7411 AC |
6516 | -- For Ada_2012 we unconditionally enforce the documented |
6517 | -- configuration pragma placement, since we do not want to | |
6518 | -- tolerate mixed modes in a unit involving Ada 2012. That | |
6519 | -- would cause real difficulties for those cases where there | |
6520 | -- are incompatibilities between Ada 95 and Ada 2012. We could | |
6521 | -- allow mixing of Ada 2005 and Ada 2012 but it's not worth it. | |
0eed45bb | 6522 | |
599a7411 AC |
6523 | Check_Valid_Configuration_Pragma; |
6524 | ||
0f1a6a0b AC |
6525 | -- Now set appropriate Ada mode |
6526 | ||
eaba57fb | 6527 | Ada_Version := Ada_2012; |
dbe945f1 | 6528 | Ada_Version_Explicit := Ada_2012; |
599a7411 AC |
6529 | end if; |
6530 | end; | |
0eed45bb | 6531 | |
996ae0b0 RK |
6532 | ---------------------- |
6533 | -- All_Calls_Remote -- | |
6534 | ---------------------- | |
6535 | ||
6536 | -- pragma All_Calls_Remote [(library_package_NAME)]; | |
6537 | ||
6538 | when Pragma_All_Calls_Remote => All_Calls_Remote : declare | |
6539 | Lib_Entity : Entity_Id; | |
6540 | ||
6541 | begin | |
6542 | Check_Ada_83_Warning; | |
6543 | Check_Valid_Library_Unit_Pragma; | |
6544 | ||
6545 | if Nkind (N) = N_Null_Statement then | |
6546 | return; | |
6547 | end if; | |
6548 | ||
6549 | Lib_Entity := Find_Lib_Unit_Name; | |
6550 | ||
d9e0a587 | 6551 | -- This pragma should only apply to a RCI unit (RM E.2.3(23)) |
996ae0b0 RK |
6552 | |
6553 | if Present (Lib_Entity) | |
6554 | and then not Debug_Flag_U | |
6555 | then | |
6556 | if not Is_Remote_Call_Interface (Lib_Entity) then | |
6557 | Error_Pragma ("pragma% only apply to rci unit"); | |
6558 | ||
6559 | -- Set flag for entity of the library unit | |
6560 | ||
6561 | else | |
6562 | Set_Has_All_Calls_Remote (Lib_Entity); | |
6563 | end if; | |
6564 | ||
6565 | end if; | |
6566 | end All_Calls_Remote; | |
6567 | ||
6568 | -------------- | |
6569 | -- Annotate -- | |
6570 | -------------- | |
6571 | ||
d0995fa2 | 6572 | -- pragma Annotate (IDENTIFIER [, IDENTIFIER {, ARG}]); |
996ae0b0 | 6573 | -- ARG ::= NAME | EXPRESSION |
d0995fa2 RD |
6574 | |
6575 | -- The first two arguments are by convention intended to refer to an | |
6576 | -- external tool and a tool-specific function. These arguments are | |
6577 | -- not analyzed. | |
996ae0b0 | 6578 | |
a4640a39 AC |
6579 | when Pragma_Annotate => Annotate : declare |
6580 | Arg : Node_Id; | |
6581 | Exp : Node_Id; | |
6582 | ||
6583 | begin | |
996ae0b0 RK |
6584 | GNAT_Pragma; |
6585 | Check_At_Least_N_Arguments (1); | |
6586 | Check_Arg_Is_Identifier (Arg1); | |
7eaa7cdf RD |
6587 | Check_No_Identifiers; |
6588 | Store_Note (N); | |
996ae0b0 | 6589 | |
a4640a39 | 6590 | -- Second parameter is optional, it is never analyzed |
9534ab17 | 6591 | |
ad05f2e9 | 6592 | if No (Arg2) then |
a4640a39 | 6593 | null; |
9534ab17 | 6594 | |
a4640a39 | 6595 | -- Here if we have a second parameter |
996ae0b0 | 6596 | |
a4640a39 AC |
6597 | else |
6598 | -- Second parameter must be identifier | |
996ae0b0 | 6599 | |
a4640a39 | 6600 | Check_Arg_Is_Identifier (Arg2); |
996ae0b0 | 6601 | |
a4640a39 | 6602 | -- Process remaining parameters if any |
3bb3f6d6 | 6603 | |
a4640a39 AC |
6604 | Arg := Next (Arg2); |
6605 | while Present (Arg) loop | |
6606 | Exp := Get_Pragma_Arg (Arg); | |
6607 | Analyze (Exp); | |
996ae0b0 | 6608 | |
a4640a39 AC |
6609 | if Is_Entity_Name (Exp) then |
6610 | null; | |
996ae0b0 | 6611 | |
a4640a39 AC |
6612 | -- For string literals, we assume Standard_String as the |
6613 | -- type, unless the string contains wide or wide_wide | |
6614 | -- characters. | |
6615 | ||
6616 | elsif Nkind (Exp) = N_String_Literal then | |
6617 | if Has_Wide_Wide_Character (Exp) then | |
6618 | Resolve (Exp, Standard_Wide_Wide_String); | |
6619 | elsif Has_Wide_Character (Exp) then | |
6620 | Resolve (Exp, Standard_Wide_String); | |
226e989e | 6621 | else |
a4640a39 | 6622 | Resolve (Exp, Standard_String); |
226e989e AC |
6623 | end if; |
6624 | ||
a4640a39 AC |
6625 | elsif Is_Overloaded (Exp) then |
6626 | Error_Pragma_Arg | |
6627 | ("ambiguous argument for pragma%", Exp); | |
6628 | ||
6629 | else | |
6630 | Resolve (Exp); | |
6631 | end if; | |
6632 | ||
6633 | Next (Arg); | |
6634 | end loop; | |
6635 | end if; | |
996ae0b0 RK |
6636 | end Annotate; |
6637 | ||
6638 | ------------ | |
6639 | -- Assert -- | |
6640 | ------------ | |
6641 | ||
59e5fbe0 RD |
6642 | -- pragma Assert ([Check =>] Boolean_EXPRESSION |
6643 | -- [, [Message =>] Static_String_EXPRESSION]); | |
996ae0b0 | 6644 | |
ac9e9918 RD |
6645 | when Pragma_Assert => Assert : declare |
6646 | Expr : Node_Id; | |
21d27997 | 6647 | Newa : List_Id; |
ac9e9918 RD |
6648 | |
6649 | begin | |
2fa9443e | 6650 | Ada_2005_Pragma; |
59e5fbe0 RD |
6651 | Check_At_Least_N_Arguments (1); |
6652 | Check_At_Most_N_Arguments (2); | |
6653 | Check_Arg_Order ((Name_Check, Name_Message)); | |
6654 | Check_Optional_Identifier (Arg1, Name_Check); | |
996ae0b0 | 6655 | |
21d27997 | 6656 | -- We treat pragma Assert as equivalent to: |
996ae0b0 | 6657 | |
21d27997 | 6658 | -- pragma Check (Assertion, condition [, msg]); |
996ae0b0 | 6659 | |
21d27997 | 6660 | -- So rewrite pragma in this manner, and analyze the result |
470cd9e9 | 6661 | |
21d27997 RD |
6662 | Expr := Get_Pragma_Arg (Arg1); |
6663 | Newa := New_List ( | |
6664 | Make_Pragma_Argument_Association (Loc, | |
7675ad4f | 6665 | Expression => Make_Identifier (Loc, Name_Assertion)), |
996ae0b0 | 6666 | |
21d27997 RD |
6667 | Make_Pragma_Argument_Association (Sloc (Expr), |
6668 | Expression => Expr)); | |
ac9e9918 | 6669 | |
21d27997 RD |
6670 | if Arg_Count > 1 then |
6671 | Check_Optional_Identifier (Arg2, Name_Message); | |
6672 | Analyze_And_Resolve (Get_Pragma_Arg (Arg2), Standard_String); | |
6673 | Append_To (Newa, Relocate_Node (Arg2)); | |
996ae0b0 RK |
6674 | end if; |
6675 | ||
21d27997 RD |
6676 | Rewrite (N, |
6677 | Make_Pragma (Loc, | |
9b3956dd | 6678 | Chars => Name_Check, |
21d27997 RD |
6679 | Pragma_Argument_Associations => Newa)); |
6680 | Analyze (N); | |
ac9e9918 RD |
6681 | end Assert; |
6682 | ||
59e5fbe0 RD |
6683 | ---------------------- |
6684 | -- Assertion_Policy -- | |
6685 | ---------------------- | |
6686 | ||
9b3956dd | 6687 | -- pragma Assertion_Policy (Check | Disable |Ignore) |
59e5fbe0 | 6688 | |
21d27997 RD |
6689 | when Pragma_Assertion_Policy => Assertion_Policy : declare |
6690 | Policy : Node_Id; | |
6691 | ||
6692 | begin | |
2fa9443e | 6693 | Ada_2005_Pragma; |
21d27997 | 6694 | Check_Valid_Configuration_Pragma; |
59e5fbe0 | 6695 | Check_Arg_Count (1); |
21d27997 | 6696 | Check_No_Identifiers; |
9b3956dd | 6697 | Check_Arg_Is_One_Of (Arg1, Name_Check, Name_Disable, Name_Ignore); |
21d27997 RD |
6698 | |
6699 | -- We treat pragma Assertion_Policy as equivalent to: | |
6700 | ||
6701 | -- pragma Check_Policy (Assertion, policy) | |
6702 | ||
6703 | -- So rewrite the pragma in that manner and link on to the chain | |
6704 | -- of Check_Policy pragmas, marking the pragma as analyzed. | |
6705 | ||
6706 | Policy := Get_Pragma_Arg (Arg1); | |
6707 | ||
6708 | Rewrite (N, | |
6709 | Make_Pragma (Loc, | |
6710 | Chars => Name_Check_Policy, | |
6711 | ||
6712 | Pragma_Argument_Associations => New_List ( | |
6713 | Make_Pragma_Argument_Association (Loc, | |
7675ad4f | 6714 | Expression => Make_Identifier (Loc, Name_Assertion)), |
21d27997 RD |
6715 | |
6716 | Make_Pragma_Argument_Association (Loc, | |
6717 | Expression => | |
7675ad4f | 6718 | Make_Identifier (Sloc (Policy), Chars (Policy)))))); |
21d27997 RD |
6719 | |
6720 | Set_Analyzed (N); | |
6721 | Set_Next_Pragma (N, Opt.Check_Policy_List); | |
6722 | Opt.Check_Policy_List := N; | |
6723 | end Assertion_Policy; | |
59e5fbe0 | 6724 | |
4351c21b AC |
6725 | ------------------------------ |
6726 | -- Assume_No_Invalid_Values -- | |
6727 | ------------------------------ | |
6728 | ||
6729 | -- pragma Assume_No_Invalid_Values (On | Off); | |
6730 | ||
6731 | when Pragma_Assume_No_Invalid_Values => | |
6732 | GNAT_Pragma; | |
6733 | Check_Valid_Configuration_Pragma; | |
6734 | Check_Arg_Count (1); | |
6735 | Check_No_Identifiers; | |
6736 | Check_Arg_Is_One_Of (Arg1, Name_On, Name_Off); | |
6737 | ||
0f1a6a0b | 6738 | if Chars (Get_Pragma_Arg (Arg1)) = Name_On then |
4351c21b AC |
6739 | Assume_No_Invalid_Values := True; |
6740 | else | |
6741 | Assume_No_Invalid_Values := False; | |
6742 | end if; | |
6743 | ||
996ae0b0 RK |
6744 | --------------- |
6745 | -- AST_Entry -- | |
6746 | --------------- | |
6747 | ||
6748 | -- pragma AST_Entry (entry_IDENTIFIER); | |
6749 | ||
6750 | when Pragma_AST_Entry => AST_Entry : declare | |
6751 | Ent : Node_Id; | |
6752 | ||
6753 | begin | |
6754 | GNAT_Pragma; | |
6755 | Check_VMS (N); | |
6756 | Check_Arg_Count (1); | |
6757 | Check_No_Identifiers; | |
6758 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 6759 | Ent := Entity (Get_Pragma_Arg (Arg1)); |
996ae0b0 RK |
6760 | |
6761 | -- Note: the implementation of the AST_Entry pragma could handle | |
6762 | -- the entry family case fine, but for now we are consistent with | |
6763 | -- the DEC rules, and do not allow the pragma, which of course | |
6764 | -- has the effect of also forbidding the attribute. | |
6765 | ||
6766 | if Ekind (Ent) /= E_Entry then | |
6767 | Error_Pragma_Arg | |
6768 | ("pragma% argument must be simple entry name", Arg1); | |
6769 | ||
6770 | elsif Is_AST_Entry (Ent) then | |
6771 | Error_Pragma_Arg | |
6772 | ("duplicate % pragma for entry", Arg1); | |
6773 | ||
6774 | elsif Has_Homonym (Ent) then | |
6775 | Error_Pragma_Arg | |
6776 | ("pragma% argument cannot specify overloaded entry", Arg1); | |
6777 | ||
6778 | else | |
6779 | declare | |
6780 | FF : constant Entity_Id := First_Formal (Ent); | |
6781 | ||
6782 | begin | |
6783 | if Present (FF) then | |
6784 | if Present (Next_Formal (FF)) then | |
6785 | Error_Pragma_Arg | |
6786 | ("entry for pragma% can have only one argument", | |
6787 | Arg1); | |
6788 | ||
6789 | elsif Parameter_Mode (FF) /= E_In_Parameter then | |
6790 | Error_Pragma_Arg | |
6791 | ("entry parameter for pragma% must have mode IN", | |
6792 | Arg1); | |
6793 | end if; | |
6794 | end if; | |
6795 | end; | |
6796 | ||
6797 | Set_Is_AST_Entry (Ent); | |
6798 | end if; | |
6799 | end AST_Entry; | |
6800 | ||
6801 | ------------------ | |
6802 | -- Asynchronous -- | |
6803 | ------------------ | |
6804 | ||
6805 | -- pragma Asynchronous (LOCAL_NAME); | |
6806 | ||
6807 | when Pragma_Asynchronous => Asynchronous : declare | |
6808 | Nm : Entity_Id; | |
6809 | C_Ent : Entity_Id; | |
6810 | L : List_Id; | |
6811 | S : Node_Id; | |
6812 | N : Node_Id; | |
6813 | Formal : Entity_Id; | |
6814 | ||
6815 | procedure Process_Async_Pragma; | |
6816 | -- Common processing for procedure and access-to-procedure case | |
6817 | ||
6818 | -------------------------- | |
6819 | -- Process_Async_Pragma -- | |
6820 | -------------------------- | |
6821 | ||
6822 | procedure Process_Async_Pragma is | |
6823 | begin | |
57193e09 | 6824 | if No (L) then |
996ae0b0 RK |
6825 | Set_Is_Asynchronous (Nm); |
6826 | return; | |
6827 | end if; | |
6828 | ||
6829 | -- The formals should be of mode IN (RM E.4.1(6)) | |
6830 | ||
6831 | S := First (L); | |
6832 | while Present (S) loop | |
6833 | Formal := Defining_Identifier (S); | |
6834 | ||
6835 | if Nkind (Formal) = N_Defining_Identifier | |
6836 | and then Ekind (Formal) /= E_In_Parameter | |
6837 | then | |
6838 | Error_Pragma_Arg | |
6839 | ("pragma% procedure can only have IN parameter", | |
6840 | Arg1); | |
6841 | end if; | |
6842 | ||
6843 | Next (S); | |
6844 | end loop; | |
6845 | ||
6846 | Set_Is_Asynchronous (Nm); | |
6847 | end Process_Async_Pragma; | |
6848 | ||
6849 | -- Start of processing for pragma Asynchronous | |
6850 | ||
6851 | begin | |
6852 | Check_Ada_83_Warning; | |
6853 | Check_No_Identifiers; | |
6854 | Check_Arg_Count (1); | |
6855 | Check_Arg_Is_Local_Name (Arg1); | |
6856 | ||
6857 | if Debug_Flag_U then | |
6858 | return; | |
6859 | end if; | |
6860 | ||
6861 | C_Ent := Cunit_Entity (Current_Sem_Unit); | |
0f1a6a0b AC |
6862 | Analyze (Get_Pragma_Arg (Arg1)); |
6863 | Nm := Entity (Get_Pragma_Arg (Arg1)); | |
996ae0b0 RK |
6864 | |
6865 | if not Is_Remote_Call_Interface (C_Ent) | |
6866 | and then not Is_Remote_Types (C_Ent) | |
6867 | then | |
6868 | -- This pragma should only appear in an RCI or Remote Types | |
b3b9865d | 6869 | -- unit (RM E.4.1(4)). |
996ae0b0 RK |
6870 | |
6871 | Error_Pragma | |
6872 | ("pragma% not in Remote_Call_Interface or " & | |
6873 | "Remote_Types unit"); | |
6874 | end if; | |
6875 | ||
6876 | if Ekind (Nm) = E_Procedure | |
6877 | and then Nkind (Parent (Nm)) = N_Procedure_Specification | |
6878 | then | |
6879 | if not Is_Remote_Call_Interface (Nm) then | |
6880 | Error_Pragma_Arg | |
6881 | ("pragma% cannot be applied on non-remote procedure", | |
6882 | Arg1); | |
6883 | end if; | |
6884 | ||
6885 | L := Parameter_Specifications (Parent (Nm)); | |
6886 | Process_Async_Pragma; | |
6887 | return; | |
6888 | ||
6889 | elsif Ekind (Nm) = E_Function then | |
6890 | Error_Pragma_Arg | |
6891 | ("pragma% cannot be applied to function", Arg1); | |
6892 | ||
c857f5ed | 6893 | elsif Is_Remote_Access_To_Subprogram_Type (Nm) then |
b3b9865d | 6894 | if Is_Record_Type (Nm) then |
c857f5ed | 6895 | |
b3b9865d AC |
6896 | -- A record type that is the Equivalent_Type for a remote |
6897 | -- access-to-subprogram type. | |
c885d7a1 | 6898 | |
b3b9865d | 6899 | N := Declaration_Node (Corresponding_Remote_Type (Nm)); |
c857f5ed | 6900 | |
b3b9865d AC |
6901 | else |
6902 | -- A non-expanded RAS type (distribution is not enabled) | |
6903 | ||
6904 | N := Declaration_Node (Nm); | |
6905 | end if; | |
996ae0b0 RK |
6906 | |
6907 | if Nkind (N) = N_Full_Type_Declaration | |
6908 | and then Nkind (Type_Definition (N)) = | |
6909 | N_Access_Procedure_Definition | |
6910 | then | |
6911 | L := Parameter_Specifications (Type_Definition (N)); | |
6912 | Process_Async_Pragma; | |
6913 | ||
c885d7a1 AC |
6914 | if Is_Asynchronous (Nm) |
6915 | and then Expander_Active | |
c857f5ed | 6916 | and then Get_PCS_Name /= Name_No_DSA |
c885d7a1 | 6917 | then |
c857f5ed | 6918 | RACW_Type_Is_Asynchronous (Underlying_RACW_Type (Nm)); |
c885d7a1 AC |
6919 | end if; |
6920 | ||
996ae0b0 RK |
6921 | else |
6922 | Error_Pragma_Arg | |
6923 | ("pragma% cannot reference access-to-function type", | |
6924 | Arg1); | |
6925 | end if; | |
6926 | ||
6927 | -- Only other possibility is Access-to-class-wide type | |
6928 | ||
6929 | elsif Is_Access_Type (Nm) | |
6930 | and then Is_Class_Wide_Type (Designated_Type (Nm)) | |
6931 | then | |
6932 | Check_First_Subtype (Arg1); | |
6933 | Set_Is_Asynchronous (Nm); | |
6934 | if Expander_Active then | |
6935 | RACW_Type_Is_Asynchronous (Nm); | |
6936 | end if; | |
6937 | ||
6938 | else | |
6939 | Error_Pragma_Arg ("inappropriate argument for pragma%", Arg1); | |
6940 | end if; | |
996ae0b0 RK |
6941 | end Asynchronous; |
6942 | ||
6943 | ------------ | |
6944 | -- Atomic -- | |
6945 | ------------ | |
6946 | ||
6947 | -- pragma Atomic (LOCAL_NAME); | |
6948 | ||
6949 | when Pragma_Atomic => | |
6950 | Process_Atomic_Shared_Volatile; | |
6951 | ||
6952 | ----------------------- | |
6953 | -- Atomic_Components -- | |
6954 | ----------------------- | |
6955 | ||
6956 | -- pragma Atomic_Components (array_LOCAL_NAME); | |
6957 | ||
6958 | -- This processing is shared by Volatile_Components | |
6959 | ||
6960 | when Pragma_Atomic_Components | | |
6961 | Pragma_Volatile_Components => | |
6962 | ||
6963 | Atomic_Components : declare | |
6964 | E_Id : Node_Id; | |
6965 | E : Entity_Id; | |
6966 | D : Node_Id; | |
6967 | K : Node_Kind; | |
6968 | ||
6969 | begin | |
996ae0b0 RK |
6970 | Check_Ada_83_Warning; |
6971 | Check_No_Identifiers; | |
6972 | Check_Arg_Count (1); | |
6973 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 6974 | E_Id := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
6975 | |
6976 | if Etype (E_Id) = Any_Type then | |
6977 | return; | |
6978 | end if; | |
6979 | ||
6980 | E := Entity (E_Id); | |
6981 | ||
af31bffb AC |
6982 | Check_Duplicate_Pragma (E); |
6983 | ||
996ae0b0 RK |
6984 | if Rep_Item_Too_Early (E, N) |
6985 | or else | |
6986 | Rep_Item_Too_Late (E, N) | |
6987 | then | |
6988 | return; | |
6989 | end if; | |
6990 | ||
6991 | D := Declaration_Node (E); | |
6992 | K := Nkind (D); | |
6993 | ||
6994 | if (K = N_Full_Type_Declaration and then Is_Array_Type (E)) | |
6995 | or else | |
6996 | ((Ekind (E) = E_Constant or else Ekind (E) = E_Variable) | |
6997 | and then Nkind (D) = N_Object_Declaration | |
6998 | and then Nkind (Object_Definition (D)) = | |
6999 | N_Constrained_Array_Definition) | |
7000 | then | |
7001 | -- The flag is set on the object, or on the base type | |
7002 | ||
7003 | if Nkind (D) /= N_Object_Declaration then | |
7004 | E := Base_Type (E); | |
7005 | end if; | |
7006 | ||
eaba57fb | 7007 | Set_Has_Volatile_Components (E); |
996ae0b0 RK |
7008 | |
7009 | if Prag_Id = Pragma_Atomic_Components then | |
eaba57fb | 7010 | Set_Has_Atomic_Components (E); |
996ae0b0 RK |
7011 | end if; |
7012 | ||
7013 | else | |
7014 | Error_Pragma_Arg ("inappropriate entity for pragma%", Arg1); | |
7015 | end if; | |
7016 | end Atomic_Components; | |
996ae0b0 RK |
7017 | -------------------- |
7018 | -- Attach_Handler -- | |
7019 | -------------------- | |
7020 | ||
7021 | -- pragma Attach_Handler (handler_NAME, EXPRESSION); | |
7022 | ||
7023 | when Pragma_Attach_Handler => | |
7024 | Check_Ada_83_Warning; | |
7025 | Check_No_Identifiers; | |
7026 | Check_Arg_Count (2); | |
fbf5a39b AC |
7027 | |
7028 | if No_Run_Time_Mode then | |
7029 | Error_Msg_CRT ("Attach_Handler pragma", N); | |
7030 | else | |
7031 | Check_Interrupt_Or_Attach_Handler; | |
7032 | ||
0f1a6a0b AC |
7033 | -- The expression that designates the attribute may depend on a |
7034 | -- discriminant, and is therefore a per- object expression, to | |
7035 | -- be expanded in the init proc. If expansion is enabled, then | |
7036 | -- perform semantic checks on a copy only. | |
fbf5a39b AC |
7037 | |
7038 | if Expander_Active then | |
7039 | declare | |
91b1417d | 7040 | Temp : constant Node_Id := |
0f1a6a0b | 7041 | New_Copy_Tree (Get_Pragma_Arg (Arg2)); |
fbf5a39b AC |
7042 | begin |
7043 | Set_Parent (Temp, N); | |
21d27997 | 7044 | Preanalyze_And_Resolve (Temp, RTE (RE_Interrupt_ID)); |
fbf5a39b AC |
7045 | end; |
7046 | ||
7047 | else | |
0f1a6a0b AC |
7048 | Analyze (Get_Pragma_Arg (Arg2)); |
7049 | Resolve (Get_Pragma_Arg (Arg2), RTE (RE_Interrupt_ID)); | |
fbf5a39b AC |
7050 | end if; |
7051 | ||
7052 | Process_Interrupt_Or_Attach_Handler; | |
7053 | end if; | |
996ae0b0 RK |
7054 | |
7055 | -------------------- | |
7056 | -- C_Pass_By_Copy -- | |
7057 | -------------------- | |
7058 | ||
7059 | -- pragma C_Pass_By_Copy ([Max_Size =>] static_integer_EXPRESSION); | |
7060 | ||
7061 | when Pragma_C_Pass_By_Copy => C_Pass_By_Copy : declare | |
7062 | Arg : Node_Id; | |
7063 | Val : Uint; | |
7064 | ||
7065 | begin | |
7066 | GNAT_Pragma; | |
7067 | Check_Valid_Configuration_Pragma; | |
7068 | Check_Arg_Count (1); | |
7069 | Check_Optional_Identifier (Arg1, "max_size"); | |
7070 | ||
0f1a6a0b | 7071 | Arg := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
7072 | Check_Arg_Is_Static_Expression (Arg, Any_Integer); |
7073 | ||
7074 | Val := Expr_Value (Arg); | |
7075 | ||
7076 | if Val <= 0 then | |
7077 | Error_Pragma_Arg | |
7078 | ("maximum size for pragma% must be positive", Arg1); | |
7079 | ||
7080 | elsif UI_Is_In_Int_Range (Val) then | |
7081 | Default_C_Record_Mechanism := UI_To_Int (Val); | |
7082 | ||
7083 | -- If a giant value is given, Int'Last will do well enough. | |
7084 | -- If sometime someone complains that a record larger than | |
7085 | -- two gigabytes is not copied, we will worry about it then! | |
7086 | ||
7087 | else | |
7088 | Default_C_Record_Mechanism := Mechanism_Type'Last; | |
7089 | end if; | |
7090 | end C_Pass_By_Copy; | |
7091 | ||
21d27997 RD |
7092 | ----------- |
7093 | -- Check -- | |
7094 | ----------- | |
7095 | ||
15d8a51d AC |
7096 | -- pragma Check ([Name =>] IDENTIFIER, |
7097 | -- [Check =>] Boolean_EXPRESSION | |
7098 | -- [,[Message =>] String_EXPRESSION]); | |
21d27997 RD |
7099 | |
7100 | when Pragma_Check => Check : declare | |
7101 | Expr : Node_Id; | |
7102 | Eloc : Source_Ptr; | |
7103 | ||
7104 | Check_On : Boolean; | |
7105 | -- Set True if category of assertions referenced by Name enabled | |
7106 | ||
7107 | begin | |
7108 | GNAT_Pragma; | |
7109 | Check_At_Least_N_Arguments (2); | |
7110 | Check_At_Most_N_Arguments (3); | |
7111 | Check_Optional_Identifier (Arg1, Name_Name); | |
7112 | Check_Optional_Identifier (Arg2, Name_Check); | |
7113 | ||
7114 | if Arg_Count = 3 then | |
7115 | Check_Optional_Identifier (Arg3, Name_Message); | |
7116 | Analyze_And_Resolve (Get_Pragma_Arg (Arg3), Standard_String); | |
7117 | end if; | |
7118 | ||
7119 | Check_Arg_Is_Identifier (Arg1); | |
51bf9bdf | 7120 | |
9b3956dd RD |
7121 | -- Completely ignore if disabled |
7122 | ||
7123 | if Check_Disabled (Chars (Get_Pragma_Arg (Arg1))) then | |
7124 | Rewrite (N, Make_Null_Statement (Loc)); | |
7125 | Analyze (N); | |
7126 | return; | |
7127 | end if; | |
7128 | ||
51bf9bdf AC |
7129 | -- Indicate if pragma is enabled. The Original_Node reference here |
7130 | -- is to deal with pragma Assert rewritten as a Check pragma. | |
7131 | ||
21d27997 | 7132 | Check_On := Check_Enabled (Chars (Get_Pragma_Arg (Arg1))); |
b26be063 AC |
7133 | |
7134 | if Check_On then | |
b26be063 AC |
7135 | Set_SCO_Pragma_Enabled (Loc); |
7136 | end if; | |
21d27997 RD |
7137 | |
7138 | -- If expansion is active and the check is not enabled then we | |
7139 | -- rewrite the Check as: | |
7140 | ||
7141 | -- if False and then condition then | |
7142 | -- null; | |
7143 | -- end if; | |
7144 | ||
7145 | -- The reason we do this rewriting during semantic analysis rather | |
7146 | -- than as part of normal expansion is that we cannot analyze and | |
7147 | -- expand the code for the boolean expression directly, or it may | |
7148 | -- cause insertion of actions that would escape the attempt to | |
7149 | -- suppress the check code. | |
7150 | ||
4fdebd93 | 7151 | -- Note that the Sloc for the if statement corresponds to the |
21d27997 RD |
7152 | -- argument condition, not the pragma itself. The reason for this |
7153 | -- is that we may generate a warning if the condition is False at | |
7154 | -- compile time, and we do not want to delete this warning when we | |
4fdebd93 | 7155 | -- delete the if statement. |
21d27997 | 7156 | |
0f1a6a0b | 7157 | Expr := Get_Pragma_Arg (Arg2); |
21d27997 RD |
7158 | |
7159 | if Expander_Active and then not Check_On then | |
7160 | Eloc := Sloc (Expr); | |
7161 | ||
7162 | Rewrite (N, | |
7163 | Make_If_Statement (Eloc, | |
7164 | Condition => | |
7165 | Make_And_Then (Eloc, | |
7166 | Left_Opnd => New_Occurrence_Of (Standard_False, Eloc), | |
7167 | Right_Opnd => Expr), | |
7168 | Then_Statements => New_List ( | |
7169 | Make_Null_Statement (Eloc)))); | |
7170 | ||
7171 | Analyze (N); | |
7172 | ||
7173 | -- Check is active | |
7174 | ||
7175 | else | |
7176 | Analyze_And_Resolve (Expr, Any_Boolean); | |
7177 | end if; | |
21d27997 RD |
7178 | end Check; |
7179 | ||
c690a2ec RD |
7180 | ---------------- |
7181 | -- Check_Name -- | |
7182 | ---------------- | |
7183 | ||
7184 | -- pragma Check_Name (check_IDENTIFIER); | |
7185 | ||
7186 | when Pragma_Check_Name => | |
7187 | Check_No_Identifiers; | |
7188 | GNAT_Pragma; | |
7189 | Check_Valid_Configuration_Pragma; | |
7190 | Check_Arg_Count (1); | |
7191 | Check_Arg_Is_Identifier (Arg1); | |
7192 | ||
7193 | declare | |
0f1a6a0b | 7194 | Nam : constant Name_Id := Chars (Get_Pragma_Arg (Arg1)); |
c690a2ec RD |
7195 | |
7196 | begin | |
7197 | for J in Check_Names.First .. Check_Names.Last loop | |
7198 | if Check_Names.Table (J) = Nam then | |
7199 | return; | |
7200 | end if; | |
7201 | end loop; | |
7202 | ||
7203 | Check_Names.Append (Nam); | |
7204 | end; | |
7205 | ||
21d27997 RD |
7206 | ------------------ |
7207 | -- Check_Policy -- | |
7208 | ------------------ | |
7209 | ||
ef7c5692 AC |
7210 | -- pragma Check_Policy ( |
7211 | -- [Name =>] IDENTIFIER, | |
7212 | -- [Policy =>] POLICY_IDENTIFIER); | |
21d27997 | 7213 | |
9b3956dd | 7214 | -- POLICY_IDENTIFIER ::= ON | OFF | CHECK | DISABLE | IGNORE |
21d27997 | 7215 | |
b3b9865d AC |
7216 | -- Note: this is a configuration pragma, but it is allowed to appear |
7217 | -- anywhere else. | |
21d27997 RD |
7218 | |
7219 | when Pragma_Check_Policy => | |
7220 | GNAT_Pragma; | |
7221 | Check_Arg_Count (2); | |
21d27997 | 7222 | Check_Optional_Identifier (Arg1, Name_Name); |
ef7c5692 | 7223 | Check_Optional_Identifier (Arg2, Name_Policy); |
21d27997 | 7224 | Check_Arg_Is_One_Of |
9b3956dd | 7225 | (Arg2, Name_On, Name_Off, Name_Check, Name_Disable, Name_Ignore); |
21d27997 RD |
7226 | |
7227 | -- A Check_Policy pragma can appear either as a configuration | |
7228 | -- pragma, or in a declarative part or a package spec (see RM | |
7229 | -- 11.5(5) for rules for Suppress/Unsuppress which are also | |
7230 | -- followed for Check_Policy). | |
7231 | ||
7232 | if not Is_Configuration_Pragma then | |
7233 | Check_Is_In_Decl_Part_Or_Package_Spec; | |
7234 | end if; | |
7235 | ||
7236 | Set_Next_Pragma (N, Opt.Check_Policy_List); | |
7237 | Opt.Check_Policy_List := N; | |
7238 | ||
c690a2ec RD |
7239 | --------------------- |
7240 | -- CIL_Constructor -- | |
7241 | --------------------- | |
7242 | ||
7243 | -- pragma CIL_Constructor ([Entity =>] LOCAL_NAME); | |
7244 | ||
7245 | -- Processing for this pragma is shared with Java_Constructor | |
7246 | ||
996ae0b0 RK |
7247 | ------------- |
7248 | -- Comment -- | |
7249 | ------------- | |
7250 | ||
7251 | -- pragma Comment (static_string_EXPRESSION) | |
7252 | ||
a30a01fe RD |
7253 | -- Processing for pragma Comment shares the circuitry for pragma |
7254 | -- Ident. The only differences are that Ident enforces a limit of 31 | |
7255 | -- characters on its argument, and also enforces limitations on | |
7256 | -- placement for DEC compatibility. Pragma Comment shares neither of | |
7257 | -- these restrictions. | |
996ae0b0 RK |
7258 | |
7259 | ------------------- | |
7260 | -- Common_Object -- | |
7261 | ------------------- | |
7262 | ||
7263 | -- pragma Common_Object ( | |
470cd9e9 | 7264 | -- [Internal =>] LOCAL_NAME |
996ae0b0 RK |
7265 | -- [, [External =>] EXTERNAL_SYMBOL] |
7266 | -- [, [Size =>] EXTERNAL_SYMBOL]); | |
7267 | ||
7268 | -- Processing for this pragma is shared with Psect_Object | |
7269 | ||
874a0341 RD |
7270 | ------------------------ |
7271 | -- Compile_Time_Error -- | |
7272 | ------------------------ | |
7273 | ||
7274 | -- pragma Compile_Time_Error | |
7275 | -- (boolean_EXPRESSION, static_string_EXPRESSION); | |
7276 | ||
7277 | when Pragma_Compile_Time_Error => | |
a30a01fe | 7278 | GNAT_Pragma; |
874a0341 RD |
7279 | Process_Compile_Time_Warning_Or_Error; |
7280 | ||
fbf5a39b AC |
7281 | -------------------------- |
7282 | -- Compile_Time_Warning -- | |
7283 | -------------------------- | |
7284 | ||
7285 | -- pragma Compile_Time_Warning | |
7286 | -- (boolean_EXPRESSION, static_string_EXPRESSION); | |
7287 | ||
874a0341 | 7288 | when Pragma_Compile_Time_Warning => |
a30a01fe | 7289 | GNAT_Pragma; |
874a0341 | 7290 | Process_Compile_Time_Warning_Or_Error; |
fbf5a39b | 7291 | |
2d9ea47f RD |
7292 | ------------------- |
7293 | -- Compiler_Unit -- | |
7294 | ------------------- | |
7295 | ||
7296 | when Pragma_Compiler_Unit => | |
7297 | GNAT_Pragma; | |
7298 | Check_Arg_Count (0); | |
7299 | Set_Is_Compiler_Unit (Get_Source_Unit (N)); | |
7300 | ||
c3217dac RD |
7301 | ----------------------------- |
7302 | -- Complete_Representation -- | |
7303 | ----------------------------- | |
7304 | ||
7305 | -- pragma Complete_Representation; | |
7306 | ||
7307 | when Pragma_Complete_Representation => | |
7308 | GNAT_Pragma; | |
7309 | Check_Arg_Count (0); | |
7310 | ||
7311 | if Nkind (Parent (N)) /= N_Record_Representation_Clause then | |
7312 | Error_Pragma | |
7313 | ("pragma & must appear within record representation clause"); | |
7314 | end if; | |
7315 | ||
996ae0b0 RK |
7316 | ---------------------------- |
7317 | -- Complex_Representation -- | |
7318 | ---------------------------- | |
7319 | ||
7320 | -- pragma Complex_Representation ([Entity =>] LOCAL_NAME); | |
7321 | ||
7322 | when Pragma_Complex_Representation => Complex_Representation : declare | |
7323 | E_Id : Entity_Id; | |
7324 | E : Entity_Id; | |
7325 | Ent : Entity_Id; | |
7326 | ||
7327 | begin | |
7328 | GNAT_Pragma; | |
7329 | Check_Arg_Count (1); | |
7330 | Check_Optional_Identifier (Arg1, Name_Entity); | |
7331 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 7332 | E_Id := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
7333 | |
7334 | if Etype (E_Id) = Any_Type then | |
7335 | return; | |
7336 | end if; | |
7337 | ||
7338 | E := Entity (E_Id); | |
7339 | ||
7340 | if not Is_Record_Type (E) then | |
7341 | Error_Pragma_Arg | |
7342 | ("argument for pragma% must be record type", Arg1); | |
7343 | end if; | |
7344 | ||
7345 | Ent := First_Entity (E); | |
7346 | ||
7347 | if No (Ent) | |
7348 | or else No (Next_Entity (Ent)) | |
7349 | or else Present (Next_Entity (Next_Entity (Ent))) | |
7350 | or else not Is_Floating_Point_Type (Etype (Ent)) | |
7351 | or else Etype (Ent) /= Etype (Next_Entity (Ent)) | |
7352 | then | |
7353 | Error_Pragma_Arg | |
470cd9e9 RD |
7354 | ("record for pragma% must have two fields of the same " |
7355 | & "floating-point type", Arg1); | |
996ae0b0 RK |
7356 | |
7357 | else | |
7358 | Set_Has_Complex_Representation (Base_Type (E)); | |
c690a2ec RD |
7359 | |
7360 | -- We need to treat the type has having a non-standard | |
7361 | -- representation, for back-end purposes, even though in | |
7362 | -- general a complex will have the default representation | |
7363 | -- of a record with two real components. | |
7364 | ||
7365 | Set_Has_Non_Standard_Rep (Base_Type (E)); | |
996ae0b0 RK |
7366 | end if; |
7367 | end Complex_Representation; | |
7368 | ||
7369 | ------------------------- | |
7370 | -- Component_Alignment -- | |
7371 | ------------------------- | |
7372 | ||
7373 | -- pragma Component_Alignment ( | |
7374 | -- [Form =>] ALIGNMENT_CHOICE | |
7375 | -- [, [Name =>] type_LOCAL_NAME]); | |
7376 | -- | |
7377 | -- ALIGNMENT_CHOICE ::= | |
7378 | -- Component_Size | |
7379 | -- | Component_Size_4 | |
7380 | -- | Storage_Unit | |
7381 | -- | Default | |
7382 | ||
7383 | when Pragma_Component_Alignment => Component_AlignmentP : declare | |
7384 | Args : Args_List (1 .. 2); | |
fbf5a39b | 7385 | Names : constant Name_List (1 .. 2) := ( |
996ae0b0 RK |
7386 | Name_Form, |
7387 | Name_Name); | |
7388 | ||
7389 | Form : Node_Id renames Args (1); | |
7390 | Name : Node_Id renames Args (2); | |
7391 | ||
7392 | Atype : Component_Alignment_Kind; | |
7393 | Typ : Entity_Id; | |
7394 | ||
7395 | begin | |
7396 | GNAT_Pragma; | |
7397 | Gather_Associations (Names, Args); | |
7398 | ||
7399 | if No (Form) then | |
7400 | Error_Pragma ("missing Form argument for pragma%"); | |
7401 | end if; | |
7402 | ||
7403 | Check_Arg_Is_Identifier (Form); | |
7404 | ||
b3b9865d AC |
7405 | -- Get proper alignment, note that Default = Component_Size on all |
7406 | -- machines we have so far, and we want to set this value rather | |
7407 | -- than the default value to indicate that it has been explicitly | |
7408 | -- set (and thus will not get overridden by the default component | |
7409 | -- alignment for the current scope) | |
996ae0b0 RK |
7410 | |
7411 | if Chars (Form) = Name_Component_Size then | |
7412 | Atype := Calign_Component_Size; | |
7413 | ||
7414 | elsif Chars (Form) = Name_Component_Size_4 then | |
7415 | Atype := Calign_Component_Size_4; | |
7416 | ||
7417 | elsif Chars (Form) = Name_Default then | |
7418 | Atype := Calign_Component_Size; | |
7419 | ||
7420 | elsif Chars (Form) = Name_Storage_Unit then | |
7421 | Atype := Calign_Storage_Unit; | |
7422 | ||
7423 | else | |
7424 | Error_Pragma_Arg | |
7425 | ("invalid Form parameter for pragma%", Form); | |
7426 | end if; | |
7427 | ||
7428 | -- Case with no name, supplied, affects scope table entry | |
7429 | ||
7430 | if No (Name) then | |
7431 | Scope_Stack.Table | |
7432 | (Scope_Stack.Last).Component_Alignment_Default := Atype; | |
7433 | ||
7434 | -- Case of name supplied | |
7435 | ||
7436 | else | |
7437 | Check_Arg_Is_Local_Name (Name); | |
7438 | Find_Type (Name); | |
7439 | Typ := Entity (Name); | |
7440 | ||
7441 | if Typ = Any_Type | |
7442 | or else Rep_Item_Too_Early (Typ, N) | |
7443 | then | |
7444 | return; | |
7445 | else | |
7446 | Typ := Underlying_Type (Typ); | |
7447 | end if; | |
7448 | ||
7449 | if not Is_Record_Type (Typ) | |
7450 | and then not Is_Array_Type (Typ) | |
7451 | then | |
7452 | Error_Pragma_Arg | |
7453 | ("Name parameter of pragma% must identify record or " & | |
7454 | "array type", Name); | |
7455 | end if; | |
7456 | ||
7457 | -- An explicit Component_Alignment pragma overrides an | |
7458 | -- implicit pragma Pack, but not an explicit one. | |
7459 | ||
7460 | if not Has_Pragma_Pack (Base_Type (Typ)) then | |
7461 | Set_Is_Packed (Base_Type (Typ), False); | |
7462 | Set_Component_Alignment (Base_Type (Typ), Atype); | |
7463 | end if; | |
7464 | end if; | |
996ae0b0 RK |
7465 | end Component_AlignmentP; |
7466 | ||
7467 | ---------------- | |
7468 | -- Controlled -- | |
7469 | ---------------- | |
7470 | ||
7471 | -- pragma Controlled (first_subtype_LOCAL_NAME); | |
7472 | ||
7473 | when Pragma_Controlled => Controlled : declare | |
7474 | Arg : Node_Id; | |
7475 | ||
7476 | begin | |
7477 | Check_No_Identifiers; | |
7478 | Check_Arg_Count (1); | |
7479 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 7480 | Arg := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
7481 | |
7482 | if not Is_Entity_Name (Arg) | |
7483 | or else not Is_Access_Type (Entity (Arg)) | |
7484 | then | |
7485 | Error_Pragma_Arg ("pragma% requires access type", Arg1); | |
7486 | else | |
7487 | Set_Has_Pragma_Controlled (Base_Type (Entity (Arg))); | |
7488 | end if; | |
7489 | end Controlled; | |
7490 | ||
7491 | ---------------- | |
7492 | -- Convention -- | |
7493 | ---------------- | |
7494 | ||
7495 | -- pragma Convention ([Convention =>] convention_IDENTIFIER, | |
7496 | -- [Entity =>] LOCAL_NAME); | |
7497 | ||
7498 | when Pragma_Convention => Convention : declare | |
7499 | C : Convention_Id; | |
7500 | E : Entity_Id; | |
67ce0d7e RD |
7501 | pragma Warnings (Off, C); |
7502 | pragma Warnings (Off, E); | |
996ae0b0 | 7503 | begin |
59e5fbe0 | 7504 | Check_Arg_Order ((Name_Convention, Name_Entity)); |
996ae0b0 RK |
7505 | Check_Ada_83_Warning; |
7506 | Check_Arg_Count (2); | |
7507 | Process_Convention (C, E); | |
7508 | end Convention; | |
7509 | ||
07fc65c4 GB |
7510 | --------------------------- |
7511 | -- Convention_Identifier -- | |
7512 | --------------------------- | |
7513 | ||
7514 | -- pragma Convention_Identifier ([Name =>] IDENTIFIER, | |
7515 | -- [Convention =>] convention_IDENTIFIER); | |
7516 | ||
7517 | when Pragma_Convention_Identifier => Convention_Identifier : declare | |
7518 | Idnam : Name_Id; | |
7519 | Cname : Name_Id; | |
7520 | ||
7521 | begin | |
7522 | GNAT_Pragma; | |
59e5fbe0 | 7523 | Check_Arg_Order ((Name_Name, Name_Convention)); |
07fc65c4 GB |
7524 | Check_Arg_Count (2); |
7525 | Check_Optional_Identifier (Arg1, Name_Name); | |
7526 | Check_Optional_Identifier (Arg2, Name_Convention); | |
7527 | Check_Arg_Is_Identifier (Arg1); | |
c690a2ec | 7528 | Check_Arg_Is_Identifier (Arg2); |
0f1a6a0b AC |
7529 | Idnam := Chars (Get_Pragma_Arg (Arg1)); |
7530 | Cname := Chars (Get_Pragma_Arg (Arg2)); | |
07fc65c4 GB |
7531 | |
7532 | if Is_Convention_Name (Cname) then | |
7533 | Record_Convention_Identifier | |
7534 | (Idnam, Get_Convention_Id (Cname)); | |
7535 | else | |
7536 | Error_Pragma_Arg | |
7537 | ("second arg for % pragma must be convention", Arg2); | |
7538 | end if; | |
7539 | end Convention_Identifier; | |
7540 | ||
996ae0b0 RK |
7541 | --------------- |
7542 | -- CPP_Class -- | |
7543 | --------------- | |
7544 | ||
7545 | -- pragma CPP_Class ([Entity =>] local_NAME) | |
7546 | ||
7547 | when Pragma_CPP_Class => CPP_Class : declare | |
874a0341 RD |
7548 | Arg : Node_Id; |
7549 | Typ : Entity_Id; | |
996ae0b0 RK |
7550 | |
7551 | begin | |
874a0341 | 7552 | if Warn_On_Obsolescent_Feature then |
ed2233dc | 7553 | Error_Msg_N |
874a0341 RD |
7554 | ("'G'N'A'T pragma cpp'_class is now obsolete; replace it" & |
7555 | " by pragma import?", N); | |
7556 | end if; | |
7557 | ||
996ae0b0 RK |
7558 | GNAT_Pragma; |
7559 | Check_Arg_Count (1); | |
7560 | Check_Optional_Identifier (Arg1, Name_Entity); | |
7561 | Check_Arg_Is_Local_Name (Arg1); | |
7562 | ||
0f1a6a0b | 7563 | Arg := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
7564 | Analyze (Arg); |
7565 | ||
7566 | if Etype (Arg) = Any_Type then | |
7567 | return; | |
7568 | end if; | |
7569 | ||
7570 | if not Is_Entity_Name (Arg) | |
7571 | or else not Is_Type (Entity (Arg)) | |
7572 | then | |
7573 | Error_Pragma_Arg ("pragma% requires a type mark", Arg1); | |
7574 | end if; | |
7575 | ||
7576 | Typ := Entity (Arg); | |
7577 | ||
996ae0b0 | 7578 | if not Is_Tagged_Type (Typ) then |
874a0341 | 7579 | Error_Pragma_Arg ("pragma% applicable to tagged types ", Arg1); |
996ae0b0 | 7580 | end if; |
874a0341 | 7581 | |
56e94186 AC |
7582 | -- Types treated as CPP classes must be declared limited (note: |
7583 | -- this used to be a warning but there is no real benefit to it | |
7584 | -- since we did effectively intend to treat the type as limited | |
7585 | -- anyway). | |
2fa9443e ES |
7586 | |
7587 | if not Is_Limited_Type (Typ) then | |
ed2233dc | 7588 | Error_Msg_N |
56e94186 | 7589 | ("imported 'C'P'P type must be limited", |
2fa9443e ES |
7590 | Get_Pragma_Arg (Arg1)); |
7591 | end if; | |
7592 | ||
874a0341 | 7593 | Set_Is_CPP_Class (Typ); |
874a0341 | 7594 | Set_Convention (Typ, Convention_CPP); |
0c020dde AC |
7595 | |
7596 | -- Imported CPP types must not have discriminants (because C++ | |
7597 | -- classes do not have discriminants). | |
7598 | ||
7599 | if Has_Discriminants (Typ) then | |
7600 | Error_Msg_N | |
7601 | ("imported 'C'P'P type cannot have discriminants", | |
7602 | First (Discriminant_Specifications | |
7603 | (Declaration_Node (Typ)))); | |
7604 | end if; | |
7605 | ||
7606 | -- Components of imported CPP types must not have default | |
7607 | -- expressions because the constructor (if any) is in the | |
7608 | -- C++ side. | |
7609 | ||
7610 | if Is_Incomplete_Or_Private_Type (Typ) | |
7611 | and then No (Underlying_Type (Typ)) | |
7612 | then | |
7613 | -- It should be an error to apply pragma CPP to a private | |
7614 | -- type if the underlying type is not visible (as it is | |
7615 | -- for any representation item). For now, for backward | |
7616 | -- compatibility we do nothing but we cannot check components | |
7617 | -- because they are not available at this stage. All this code | |
7618 | -- will be removed when we cleanup this obsolete GNAT pragma??? | |
7619 | ||
7620 | null; | |
7621 | ||
7622 | else | |
7623 | declare | |
7624 | Tdef : constant Node_Id := | |
7625 | Type_Definition (Declaration_Node (Typ)); | |
7626 | Clist : Node_Id; | |
7627 | Comp : Node_Id; | |
7628 | ||
7629 | begin | |
7630 | if Nkind (Tdef) = N_Record_Definition then | |
7631 | Clist := Component_List (Tdef); | |
7632 | else | |
7633 | pragma Assert (Nkind (Tdef) = N_Derived_Type_Definition); | |
7634 | Clist := Component_List (Record_Extension_Part (Tdef)); | |
7635 | end if; | |
7636 | ||
7637 | if Present (Clist) then | |
7638 | Comp := First (Component_Items (Clist)); | |
7639 | while Present (Comp) loop | |
7640 | if Present (Expression (Comp)) then | |
7641 | Error_Msg_N | |
7642 | ("component of imported 'C'P'P type cannot have" & | |
7643 | " default expression", Expression (Comp)); | |
7644 | end if; | |
7645 | ||
7646 | Next (Comp); | |
7647 | end loop; | |
7648 | end if; | |
7649 | end; | |
7650 | end if; | |
996ae0b0 RK |
7651 | end CPP_Class; |
7652 | ||
7653 | --------------------- | |
7654 | -- CPP_Constructor -- | |
7655 | --------------------- | |
7656 | ||
874a0341 RD |
7657 | -- pragma CPP_Constructor ([Entity =>] LOCAL_NAME |
7658 | -- [, [External_Name =>] static_string_EXPRESSION ] | |
7659 | -- [, [Link_Name =>] static_string_EXPRESSION ]); | |
996ae0b0 RK |
7660 | |
7661 | when Pragma_CPP_Constructor => CPP_Constructor : declare | |
7b4db06c JM |
7662 | Elmt : Elmt_Id; |
7663 | Id : Entity_Id; | |
7664 | Def_Id : Entity_Id; | |
7665 | Tag_Typ : Entity_Id; | |
996ae0b0 RK |
7666 | |
7667 | begin | |
7668 | GNAT_Pragma; | |
874a0341 RD |
7669 | Check_At_Least_N_Arguments (1); |
7670 | Check_At_Most_N_Arguments (3); | |
996ae0b0 RK |
7671 | Check_Optional_Identifier (Arg1, Name_Entity); |
7672 | Check_Arg_Is_Local_Name (Arg1); | |
7673 | ||
0f1a6a0b | 7674 | Id := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
7675 | Find_Program_Unit_Name (Id); |
7676 | ||
7677 | -- If we did not find the name, we are done | |
7678 | ||
7679 | if Etype (Id) = Any_Type then | |
7680 | return; | |
7681 | end if; | |
7682 | ||
7683 | Def_Id := Entity (Id); | |
7684 | ||
cefce34c JM |
7685 | -- Check if already defined as constructor |
7686 | ||
7687 | if Is_Constructor (Def_Id) then | |
7688 | Error_Msg_N | |
7689 | ("?duplicate argument for pragma 'C'P'P_Constructor", Arg1); | |
7690 | return; | |
7691 | end if; | |
7692 | ||
996ae0b0 | 7693 | if Ekind (Def_Id) = E_Function |
7b4db06c JM |
7694 | and then (Is_CPP_Class (Etype (Def_Id)) |
7695 | or else (Is_Class_Wide_Type (Etype (Def_Id)) | |
7696 | and then | |
7697 | Is_CPP_Class (Root_Type (Etype (Def_Id))))) | |
996ae0b0 | 7698 | then |
996ae0b0 | 7699 | if Arg_Count >= 2 then |
874a0341 RD |
7700 | Set_Imported (Def_Id); |
7701 | Set_Is_Public (Def_Id); | |
996ae0b0 RK |
7702 | Process_Interface_Name (Def_Id, Arg2, Arg3); |
7703 | end if; | |
7704 | ||
236fecbf JM |
7705 | Set_Has_Completion (Def_Id); |
7706 | Set_Is_Constructor (Def_Id); | |
996ae0b0 | 7707 | |
7b4db06c JM |
7708 | -- Imported C++ constructors are not dispatching primitives |
7709 | -- because in C++ they don't have a dispatch table slot. | |
7710 | -- However, in Ada the constructor has the profile of a | |
7711 | -- function that returns a tagged type and therefore it has | |
3c92a2b8 AC |
7712 | -- been treated as a primitive operation during semantic |
7713 | -- analysis. We now remove it from the list of primitive | |
7714 | -- operations of the type. | |
7b4db06c JM |
7715 | |
7716 | if Is_Tagged_Type (Etype (Def_Id)) | |
7717 | and then not Is_Class_Wide_Type (Etype (Def_Id)) | |
7718 | then | |
7719 | pragma Assert (Is_Dispatching_Operation (Def_Id)); | |
7720 | Tag_Typ := Etype (Def_Id); | |
7721 | ||
7722 | Elmt := First_Elmt (Primitive_Operations (Tag_Typ)); | |
3c92a2b8 | 7723 | while Present (Elmt) and then Node (Elmt) /= Def_Id loop |
7b4db06c JM |
7724 | Next_Elmt (Elmt); |
7725 | end loop; | |
7726 | ||
7727 | Remove_Elmt (Primitive_Operations (Tag_Typ), Elmt); | |
7728 | Set_Is_Dispatching_Operation (Def_Id, False); | |
7729 | end if; | |
7730 | ||
7731 | -- For backward compatibility, if the constructor returns a | |
3c92a2b8 AC |
7732 | -- class wide type, and we internally change the return type to |
7733 | -- the corresponding root type. | |
7b4db06c JM |
7734 | |
7735 | if Is_Class_Wide_Type (Etype (Def_Id)) then | |
7736 | Set_Etype (Def_Id, Root_Type (Etype (Def_Id))); | |
7737 | end if; | |
996ae0b0 RK |
7738 | else |
7739 | Error_Pragma_Arg | |
7740 | ("pragma% requires function returning a 'C'P'P_Class type", | |
7741 | Arg1); | |
7742 | end if; | |
7743 | end CPP_Constructor; | |
7744 | ||
7745 | ----------------- | |
7746 | -- CPP_Virtual -- | |
7747 | ----------------- | |
7748 | ||
996ae0b0 | 7749 | when Pragma_CPP_Virtual => CPP_Virtual : declare |
996ae0b0 | 7750 | begin |
a30a01fe RD |
7751 | GNAT_Pragma; |
7752 | ||
874a0341 | 7753 | if Warn_On_Obsolescent_Feature then |
ed2233dc | 7754 | Error_Msg_N |
874a0341 RD |
7755 | ("'G'N'A'T pragma cpp'_virtual is now obsolete and has " & |
7756 | "no effect?", N); | |
996ae0b0 RK |
7757 | end if; |
7758 | end CPP_Virtual; | |
7759 | ||
7760 | ---------------- | |
7761 | -- CPP_Vtable -- | |
7762 | ---------------- | |
7763 | ||
996ae0b0 | 7764 | when Pragma_CPP_Vtable => CPP_Vtable : declare |
996ae0b0 | 7765 | begin |
a30a01fe RD |
7766 | GNAT_Pragma; |
7767 | ||
874a0341 | 7768 | if Warn_On_Obsolescent_Feature then |
ed2233dc | 7769 | Error_Msg_N |
874a0341 RD |
7770 | ("'G'N'A'T pragma cpp'_vtable is now obsolete and has " & |
7771 | "no effect?", N); | |
996ae0b0 | 7772 | end if; |
996ae0b0 RK |
7773 | end CPP_Vtable; |
7774 | ||
8918fe18 AC |
7775 | --------- |
7776 | -- CPU -- | |
7777 | --------- | |
7778 | ||
7779 | -- pragma CPU (EXPRESSION); | |
7780 | ||
7781 | when Pragma_CPU => CPU : declare | |
7782 | P : constant Node_Id := Parent (N); | |
7783 | Arg : Node_Id; | |
7784 | ||
7785 | begin | |
7786 | Ada_2012_Pragma; | |
7787 | Check_No_Identifiers; | |
7788 | Check_Arg_Count (1); | |
7789 | ||
7790 | -- Subprogram case | |
7791 | ||
7792 | if Nkind (P) = N_Subprogram_Body then | |
7793 | Check_In_Main_Program; | |
7794 | ||
7795 | Arg := Get_Pragma_Arg (Arg1); | |
7796 | Analyze_And_Resolve (Arg, Any_Integer); | |
7797 | ||
7798 | -- Must be static | |
7799 | ||
7800 | if not Is_Static_Expression (Arg) then | |
7801 | Flag_Non_Static_Expr | |
7802 | ("main subprogram affinity is not static!", Arg); | |
7803 | raise Pragma_Exit; | |
7804 | ||
7805 | -- If constraint error, then we already signalled an error | |
7806 | ||
7807 | elsif Raises_Constraint_Error (Arg) then | |
7808 | null; | |
7809 | ||
7810 | -- Otherwise check in range | |
7811 | ||
7812 | else | |
7813 | declare | |
7814 | CPU_Id : constant Entity_Id := RTE (RE_CPU_Range); | |
7815 | -- This is the entity System.Multiprocessors.CPU_Range; | |
7816 | ||
7817 | Val : constant Uint := Expr_Value (Arg); | |
7818 | ||
7819 | begin | |
7820 | if Val < Expr_Value (Type_Low_Bound (CPU_Id)) | |
7821 | or else | |
7822 | Val > Expr_Value (Type_High_Bound (CPU_Id)) | |
7823 | then | |
7824 | Error_Pragma_Arg | |
7825 | ("main subprogram CPU is out of range", Arg1); | |
7826 | end if; | |
7827 | end; | |
7828 | end if; | |
7829 | ||
7830 | Set_Main_CPU | |
7831 | (Current_Sem_Unit, UI_To_Int (Expr_Value (Arg))); | |
7832 | ||
7833 | -- Task case | |
7834 | ||
7835 | elsif Nkind (P) = N_Task_Definition then | |
7836 | Arg := Get_Pragma_Arg (Arg1); | |
7837 | ||
7838 | -- The expression must be analyzed in the special manner | |
7839 | -- described in "Handling of Default and Per-Object | |
7840 | -- Expressions" in sem.ads. | |
7841 | ||
7842 | Preanalyze_Spec_Expression (Arg, RTE (RE_CPU_Range)); | |
7843 | ||
7844 | -- Anything else is incorrect | |
7845 | ||
7846 | else | |
7847 | Pragma_Misplaced; | |
7848 | end if; | |
7849 | ||
7850 | if Has_Pragma_CPU (P) then | |
7851 | Error_Pragma ("duplicate pragma% not allowed"); | |
7852 | else | |
7853 | Set_Has_Pragma_CPU (P, True); | |
7854 | ||
7855 | if Nkind (P) = N_Task_Definition then | |
7856 | Record_Rep_Item (Defining_Identifier (Parent (P)), N); | |
7857 | end if; | |
7858 | end if; | |
7859 | end CPU; | |
7860 | ||
996ae0b0 RK |
7861 | ----------- |
7862 | -- Debug -- | |
7863 | ----------- | |
7864 | ||
c3217dac RD |
7865 | -- pragma Debug ([boolean_EXPRESSION,] PROCEDURE_CALL_STATEMENT); |
7866 | ||
7867 | when Pragma_Debug => Debug : declare | |
7ab4d95a AC |
7868 | Cond : Node_Id; |
7869 | Call : Node_Id; | |
996ae0b0 | 7870 | |
c3217dac | 7871 | begin |
996ae0b0 RK |
7872 | GNAT_Pragma; |
7873 | ||
9b3956dd RD |
7874 | -- Skip analysis if disabled |
7875 | ||
7876 | if Debug_Pragmas_Disabled then | |
7877 | Rewrite (N, Make_Null_Statement (Loc)); | |
7878 | Analyze (N); | |
7879 | return; | |
7880 | end if; | |
7881 | ||
c3217dac RD |
7882 | Cond := |
7883 | New_Occurrence_Of | |
7884 | (Boolean_Literals (Debug_Pragmas_Enabled and Expander_Active), | |
7885 | Loc); | |
7886 | ||
44a10091 AC |
7887 | if Debug_Pragmas_Enabled then |
7888 | Set_SCO_Pragma_Enabled (Loc); | |
7889 | end if; | |
7890 | ||
c3217dac RD |
7891 | if Arg_Count = 2 then |
7892 | Cond := | |
7893 | Make_And_Then (Loc, | |
7ab4d95a AC |
7894 | Left_Opnd => Relocate_Node (Cond), |
7895 | Right_Opnd => Get_Pragma_Arg (Arg1)); | |
7896 | Call := Get_Pragma_Arg (Arg2); | |
7897 | else | |
7898 | Call := Get_Pragma_Arg (Arg1); | |
7899 | end if; | |
7900 | ||
7901 | if Nkind_In (Call, | |
7902 | N_Indexed_Component, | |
7903 | N_Function_Call, | |
7904 | N_Identifier, | |
7905 | N_Selected_Component) | |
7906 | then | |
7907 | -- If this pragma Debug comes from source, its argument was | |
7908 | -- parsed as a name form (which is syntactically identical). | |
7909 | -- Change it to a procedure call statement now. | |
7910 | ||
7911 | Change_Name_To_Procedure_Call_Statement (Call); | |
7912 | ||
7913 | elsif Nkind (Call) = N_Procedure_Call_Statement then | |
7914 | ||
7915 | -- Already in the form of a procedure call statement: nothing | |
7916 | -- to do (could happen in case of an internally generated | |
7917 | -- pragma Debug). | |
7918 | ||
7919 | null; | |
7920 | ||
7921 | else | |
7922 | -- All other cases: diagnose error | |
7923 | ||
7924 | Error_Msg | |
b3c33641 AC |
7925 | ("argument of pragma ""Debug"" is not procedure call", |
7926 | Sloc (Call)); | |
7ab4d95a | 7927 | return; |
c3217dac RD |
7928 | end if; |
7929 | ||
7930 | -- Rewrite into a conditional with an appropriate condition. We | |
7931 | -- wrap the procedure call in a block so that overhead from e.g. | |
7932 | -- use of the secondary stack does not generate execution overhead | |
7933 | -- for suppressed conditions. | |
996ae0b0 | 7934 | |
6cdb2c6e | 7935 | Rewrite (N, Make_Implicit_If_Statement (N, |
c3217dac RD |
7936 | Condition => Cond, |
7937 | Then_Statements => New_List ( | |
7938 | Make_Block_Statement (Loc, | |
7939 | Handled_Statement_Sequence => | |
7940 | Make_Handled_Sequence_Of_Statements (Loc, | |
7ab4d95a | 7941 | Statements => New_List (Relocate_Node (Call))))))); |
6cdb2c6e | 7942 | Analyze (N); |
996ae0b0 RK |
7943 | end Debug; |
7944 | ||
6e18b0e5 RD |
7945 | ------------------ |
7946 | -- Debug_Policy -- | |
7947 | ------------------ | |
7948 | ||
7949 | -- pragma Debug_Policy (Check | Ignore) | |
7950 | ||
7951 | when Pragma_Debug_Policy => | |
7952 | GNAT_Pragma; | |
7953 | Check_Arg_Count (1); | |
9b3956dd | 7954 | Check_Arg_Is_One_Of (Arg1, Name_Check, Name_Disable, Name_Ignore); |
0f1a6a0b AC |
7955 | Debug_Pragmas_Enabled := |
7956 | Chars (Get_Pragma_Arg (Arg1)) = Name_Check; | |
9b3956dd RD |
7957 | Debug_Pragmas_Disabled := |
7958 | Chars (Get_Pragma_Arg (Arg1)) = Name_Disable; | |
6e18b0e5 | 7959 | |
0da2c8ac AC |
7960 | --------------------- |
7961 | -- Detect_Blocking -- | |
7962 | --------------------- | |
7963 | ||
7964 | -- pragma Detect_Blocking; | |
7965 | ||
7966 | when Pragma_Detect_Blocking => | |
2fa9443e | 7967 | Ada_2005_Pragma; |
0da2c8ac AC |
7968 | Check_Arg_Count (0); |
7969 | Check_Valid_Configuration_Pragma; | |
7970 | Detect_Blocking := True; | |
7971 | ||
fab2daeb AC |
7972 | -------------------------- |
7973 | -- Default_Storage_Pool -- | |
7974 | -------------------------- | |
7975 | ||
7976 | -- pragma Default_Storage_Pool (storage_pool_NAME | null); | |
7977 | ||
7978 | when Pragma_Default_Storage_Pool => | |
7979 | Ada_2012_Pragma; | |
7980 | Check_Arg_Count (1); | |
7981 | ||
7982 | -- Default_Storage_Pool can appear as a configuration pragma, or | |
7983 | -- in a declarative part or a package spec. | |
7984 | ||
7985 | if not Is_Configuration_Pragma then | |
7986 | Check_Is_In_Decl_Part_Or_Package_Spec; | |
7987 | end if; | |
7988 | ||
7989 | -- Case of Default_Storage_Pool (null); | |
7990 | ||
7991 | if Nkind (Expression (Arg1)) = N_Null then | |
7992 | Analyze (Expression (Arg1)); | |
e606088a AC |
7993 | |
7994 | -- This is an odd case, this is not really an expression, so | |
7995 | -- we don't have a type for it. So just set the type to Empty. | |
7996 | ||
fab2daeb | 7997 | Set_Etype (Expression (Arg1), Empty); |
fab2daeb AC |
7998 | |
7999 | -- Case of Default_Storage_Pool (storage_pool_NAME); | |
8000 | ||
8001 | else | |
8002 | -- If it's a configuration pragma, then the only allowed | |
8003 | -- argument is "null". | |
8004 | ||
8005 | if Is_Configuration_Pragma then | |
8006 | Error_Pragma_Arg ("NULL expected", Arg1); | |
8007 | end if; | |
8008 | ||
8009 | -- The expected type for a non-"null" argument is | |
8010 | -- Root_Storage_Pool'Class. | |
8011 | ||
8012 | Analyze_And_Resolve | |
8013 | (Get_Pragma_Arg (Arg1), | |
8014 | Typ => Class_Wide_Type (RTE (RE_Root_Storage_Pool))); | |
8015 | end if; | |
8016 | ||
8017 | -- Finally, record the pool name (or null). Freeze.Freeze_Entity | |
8018 | -- for an access type will use this information to set the | |
8019 | -- appropriate attributes of the access type. | |
8020 | ||
8021 | Default_Pool := Expression (Arg1); | |
8022 | ||
95cb33a5 AC |
8023 | --------------- |
8024 | -- Dimension -- | |
8025 | --------------- | |
8026 | ||
8027 | when Pragma_Dimension => | |
8028 | GNAT_Pragma; | |
8029 | Check_Arg_Count (4); | |
8030 | Check_No_Identifiers; | |
8031 | Check_Arg_Is_Local_Name (Arg1); | |
8032 | ||
8033 | if not Is_Type (Arg1) then | |
8034 | Error_Pragma ("first argument for pragma% must be subtype"); | |
8035 | end if; | |
8036 | ||
8037 | Check_Arg_Is_Static_Expression (Arg2, Standard_Integer); | |
8038 | Check_Arg_Is_Static_Expression (Arg3, Standard_Integer); | |
8039 | Check_Arg_Is_Static_Expression (Arg4, Standard_Integer); | |
8040 | ||
12b4d338 AC |
8041 | ------------------------------------ |
8042 | -- Disable_Atomic_Synchronization -- | |
8043 | ------------------------------------ | |
8044 | ||
8045 | -- pragma Disable_Atomic_Synchronization [(Entity)]; | |
8046 | ||
8047 | when Pragma_Disable_Atomic_Synchronization => | |
8048 | Process_Disable_Enable_Atomic_Sync (Name_Suppress); | |
8049 | ||
996ae0b0 RK |
8050 | ------------------- |
8051 | -- Discard_Names -- | |
8052 | ------------------- | |
8053 | ||
8054 | -- pragma Discard_Names [([On =>] LOCAL_NAME)]; | |
8055 | ||
8056 | when Pragma_Discard_Names => Discard_Names : declare | |
996ae0b0 | 8057 | E : Entity_Id; |
4351c21b | 8058 | E_Id : Entity_Id; |
996ae0b0 RK |
8059 | |
8060 | begin | |
996ae0b0 RK |
8061 | Check_Ada_83_Warning; |
8062 | ||
8063 | -- Deal with configuration pragma case | |
8064 | ||
8065 | if Arg_Count = 0 and then Is_Configuration_Pragma then | |
8066 | Global_Discard_Names := True; | |
8067 | return; | |
8068 | ||
8069 | -- Otherwise, check correct appropriate context | |
8070 | ||
8071 | else | |
8072 | Check_Is_In_Decl_Part_Or_Package_Spec; | |
8073 | ||
8074 | if Arg_Count = 0 then | |
8075 | ||
8076 | -- If there is no parameter, then from now on this pragma | |
8077 | -- applies to any enumeration, exception or tagged type | |
2fa9443e ES |
8078 | -- defined in the current declarative part, and recursively |
8079 | -- to any nested scope. | |
996ae0b0 | 8080 | |
eaba57fb | 8081 | Set_Discard_Names (Current_Scope); |
996ae0b0 RK |
8082 | return; |
8083 | ||
8084 | else | |
8085 | Check_Arg_Count (1); | |
8086 | Check_Optional_Identifier (Arg1, Name_On); | |
8087 | Check_Arg_Is_Local_Name (Arg1); | |
4351c21b | 8088 | |
0f1a6a0b | 8089 | E_Id := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
8090 | |
8091 | if Etype (E_Id) = Any_Type then | |
8092 | return; | |
8093 | else | |
8094 | E := Entity (E_Id); | |
8095 | end if; | |
8096 | ||
8097 | if (Is_First_Subtype (E) | |
4351c21b AC |
8098 | and then |
8099 | (Is_Enumeration_Type (E) or else Is_Tagged_Type (E))) | |
996ae0b0 RK |
8100 | or else Ekind (E) = E_Exception |
8101 | then | |
eaba57fb | 8102 | Set_Discard_Names (E); |
996ae0b0 RK |
8103 | else |
8104 | Error_Pragma_Arg | |
8105 | ("inappropriate entity for pragma%", Arg1); | |
8106 | end if; | |
4351c21b | 8107 | |
996ae0b0 RK |
8108 | end if; |
8109 | end if; | |
8110 | end Discard_Names; | |
8111 | ||
67645bde AC |
8112 | ------------------------ |
8113 | -- Dispatching_Domain -- | |
8114 | ------------------------ | |
8115 | ||
8116 | -- pragma Dispatching_Domain (EXPRESSION); | |
8117 | ||
8118 | when Pragma_Dispatching_Domain => Dispatching_Domain : declare | |
8119 | P : constant Node_Id := Parent (N); | |
8120 | Arg : Node_Id; | |
8121 | ||
8122 | begin | |
8123 | Ada_2012_Pragma; | |
8124 | Check_No_Identifiers; | |
8125 | Check_Arg_Count (1); | |
8126 | ||
8127 | -- This pragma is born obsolete, but not the aspect | |
8128 | ||
8129 | if not From_Aspect_Specification (N) then | |
8130 | Check_Restriction | |
8131 | (No_Obsolescent_Features, Pragma_Identifier (N)); | |
8132 | end if; | |
8133 | ||
8134 | if Nkind (P) = N_Task_Definition then | |
8135 | Arg := Get_Pragma_Arg (Arg1); | |
8136 | ||
8137 | -- The expression must be analyzed in the special manner | |
8138 | -- described in "Handling of Default and Per-Object | |
8139 | -- Expressions" in sem.ads. | |
8140 | ||
8141 | Preanalyze_Spec_Expression (Arg, RTE (RE_Dispatching_Domain)); | |
8142 | ||
8143 | -- Anything else is incorrect | |
8144 | ||
8145 | else | |
8146 | Pragma_Misplaced; | |
8147 | end if; | |
8148 | ||
8149 | if Has_Pragma_Dispatching_Domain (P) then | |
8150 | Error_Pragma ("duplicate pragma% not allowed"); | |
8151 | else | |
8152 | Set_Has_Pragma_Dispatching_Domain (P, True); | |
8153 | ||
8154 | if Nkind (P) = N_Task_Definition then | |
8155 | Record_Rep_Item (Defining_Identifier (Parent (P)), N); | |
8156 | end if; | |
8157 | end if; | |
8158 | end Dispatching_Domain; | |
8159 | ||
996ae0b0 RK |
8160 | --------------- |
8161 | -- Elaborate -- | |
8162 | --------------- | |
8163 | ||
8164 | -- pragma Elaborate (library_unit_NAME {, library_unit_NAME}); | |
8165 | ||
8166 | when Pragma_Elaborate => Elaborate : declare | |
ac9e9918 RD |
8167 | Arg : Node_Id; |
8168 | Citem : Node_Id; | |
996ae0b0 RK |
8169 | |
8170 | begin | |
8171 | -- Pragma must be in context items list of a compilation unit | |
8172 | ||
ac9e9918 | 8173 | if not Is_In_Context_Clause then |
996ae0b0 | 8174 | Pragma_Misplaced; |
996ae0b0 RK |
8175 | end if; |
8176 | ||
8177 | -- Must be at least one argument | |
8178 | ||
8179 | if Arg_Count = 0 then | |
8180 | Error_Pragma ("pragma% requires at least one argument"); | |
8181 | end if; | |
8182 | ||
8183 | -- In Ada 83 mode, there can be no items following it in the | |
8184 | -- context list except other pragmas and implicit with clauses | |
8185 | -- (e.g. those added by use of Rtsfind). In Ada 95 mode, this | |
8186 | -- placement rule does not apply. | |
8187 | ||
0ab80019 | 8188 | if Ada_Version = Ada_83 and then Comes_From_Source (N) then |
996ae0b0 | 8189 | Citem := Next (N); |
996ae0b0 RK |
8190 | while Present (Citem) loop |
8191 | if Nkind (Citem) = N_Pragma | |
8192 | or else (Nkind (Citem) = N_With_Clause | |
8193 | and then Implicit_With (Citem)) | |
8194 | then | |
8195 | null; | |
8196 | else | |
8197 | Error_Pragma | |
8198 | ("(Ada 83) pragma% must be at end of context clause"); | |
8199 | end if; | |
8200 | ||
8201 | Next (Citem); | |
8202 | end loop; | |
8203 | end if; | |
8204 | ||
8205 | -- Finally, the arguments must all be units mentioned in a with | |
ac9e9918 RD |
8206 | -- clause in the same context clause. Note we already checked (in |
8207 | -- Par.Prag) that the arguments are all identifiers or selected | |
8208 | -- components. | |
996ae0b0 RK |
8209 | |
8210 | Arg := Arg1; | |
8211 | Outer : while Present (Arg) loop | |
ac9e9918 | 8212 | Citem := First (List_Containing (N)); |
996ae0b0 RK |
8213 | Inner : while Citem /= N loop |
8214 | if Nkind (Citem) = N_With_Clause | |
0f1a6a0b | 8215 | and then Same_Name (Name (Citem), Get_Pragma_Arg (Arg)) |
996ae0b0 RK |
8216 | then |
8217 | Set_Elaborate_Present (Citem, True); | |
0f1a6a0b | 8218 | Set_Unit_Name (Get_Pragma_Arg (Arg), Name (Citem)); |
0b3d16c0 | 8219 | Generate_Reference (Entity (Name (Citem)), Citem); |
82c80734 RD |
8220 | |
8221 | -- With the pragma present, elaboration calls on | |
8222 | -- subprograms from the named unit need no further | |
8223 | -- checks, as long as the pragma appears in the current | |
8224 | -- compilation unit. If the pragma appears in some unit | |
8225 | -- in the context, there might still be a need for an | |
8226 | -- Elaborate_All_Desirable from the current compilation | |
f3d57416 | 8227 | -- to the named unit, so we keep the check enabled. |
82c80734 RD |
8228 | |
8229 | if In_Extended_Main_Source_Unit (N) then | |
8230 | Set_Suppress_Elaboration_Warnings | |
8231 | (Entity (Name (Citem))); | |
8232 | end if; | |
ac9e9918 | 8233 | |
996ae0b0 RK |
8234 | exit Inner; |
8235 | end if; | |
8236 | ||
8237 | Next (Citem); | |
8238 | end loop Inner; | |
8239 | ||
8240 | if Citem = N then | |
8241 | Error_Pragma_Arg | |
8242 | ("argument of pragma% is not with'ed unit", Arg); | |
8243 | end if; | |
8244 | ||
8245 | Next (Arg); | |
8246 | end loop Outer; | |
fbf5a39b AC |
8247 | |
8248 | -- Give a warning if operating in static mode with -gnatwl | |
f3d57416 | 8249 | -- (elaboration warnings enabled) switch set. |
fbf5a39b AC |
8250 | |
8251 | if Elab_Warnings and not Dynamic_Elaboration_Checks then | |
8252 | Error_Msg_N | |
8253 | ("?use of pragma Elaborate may not be safe", N); | |
ed2233dc | 8254 | Error_Msg_N |
fbf5a39b AC |
8255 | ("?use pragma Elaborate_All instead if possible", N); |
8256 | end if; | |
996ae0b0 RK |
8257 | end Elaborate; |
8258 | ||
8259 | ------------------- | |
8260 | -- Elaborate_All -- | |
8261 | ------------------- | |
8262 | ||
8263 | -- pragma Elaborate_All (library_unit_NAME {, library_unit_NAME}); | |
8264 | ||
8265 | when Pragma_Elaborate_All => Elaborate_All : declare | |
ac9e9918 RD |
8266 | Arg : Node_Id; |
8267 | Citem : Node_Id; | |
996ae0b0 RK |
8268 | |
8269 | begin | |
8270 | Check_Ada_83_Warning; | |
8271 | ||
8272 | -- Pragma must be in context items list of a compilation unit | |
8273 | ||
ac9e9918 | 8274 | if not Is_In_Context_Clause then |
996ae0b0 | 8275 | Pragma_Misplaced; |
996ae0b0 RK |
8276 | end if; |
8277 | ||
8278 | -- Must be at least one argument | |
8279 | ||
8280 | if Arg_Count = 0 then | |
8281 | Error_Pragma ("pragma% requires at least one argument"); | |
8282 | end if; | |
8283 | ||
8284 | -- Note: unlike pragma Elaborate, pragma Elaborate_All does not | |
8285 | -- have to appear at the end of the context clause, but may | |
8286 | -- appear mixed in with other items, even in Ada 83 mode. | |
8287 | ||
8288 | -- Final check: the arguments must all be units mentioned in | |
8289 | -- a with clause in the same context clause. Note that we | |
8290 | -- already checked (in Par.Prag) that all the arguments are | |
8291 | -- either identifiers or selected components. | |
8292 | ||
8293 | Arg := Arg1; | |
8294 | Outr : while Present (Arg) loop | |
ac9e9918 | 8295 | Citem := First (List_Containing (N)); |
996ae0b0 RK |
8296 | Innr : while Citem /= N loop |
8297 | if Nkind (Citem) = N_With_Clause | |
0f1a6a0b | 8298 | and then Same_Name (Name (Citem), Get_Pragma_Arg (Arg)) |
996ae0b0 RK |
8299 | then |
8300 | Set_Elaborate_All_Present (Citem, True); | |
0f1a6a0b | 8301 | Set_Unit_Name (Get_Pragma_Arg (Arg), Name (Citem)); |
82c80734 RD |
8302 | |
8303 | -- Suppress warnings and elaboration checks on the named | |
8304 | -- unit if the pragma is in the current compilation, as | |
8305 | -- for pragma Elaborate. | |
8306 | ||
8307 | if In_Extended_Main_Source_Unit (N) then | |
8308 | Set_Suppress_Elaboration_Warnings | |
8309 | (Entity (Name (Citem))); | |
8310 | end if; | |
996ae0b0 RK |
8311 | exit Innr; |
8312 | end if; | |
8313 | ||
8314 | Next (Citem); | |
8315 | end loop Innr; | |
8316 | ||
8317 | if Citem = N then | |
fbf5a39b | 8318 | Set_Error_Posted (N); |
996ae0b0 RK |
8319 | Error_Pragma_Arg |
8320 | ("argument of pragma% is not with'ed unit", Arg); | |
8321 | end if; | |
8322 | ||
8323 | Next (Arg); | |
8324 | end loop Outr; | |
8325 | end Elaborate_All; | |
8326 | ||
8327 | -------------------- | |
8328 | -- Elaborate_Body -- | |
8329 | -------------------- | |
8330 | ||
8331 | -- pragma Elaborate_Body [( library_unit_NAME )]; | |
8332 | ||
8333 | when Pragma_Elaborate_Body => Elaborate_Body : declare | |
8334 | Cunit_Node : Node_Id; | |
8335 | Cunit_Ent : Entity_Id; | |
8336 | ||
8337 | begin | |
8338 | Check_Ada_83_Warning; | |
8339 | Check_Valid_Library_Unit_Pragma; | |
8340 | ||
8341 | if Nkind (N) = N_Null_Statement then | |
8342 | return; | |
8343 | end if; | |
8344 | ||
8345 | Cunit_Node := Cunit (Current_Sem_Unit); | |
8346 | Cunit_Ent := Cunit_Entity (Current_Sem_Unit); | |
8347 | ||
d7ba4df4 RD |
8348 | if Nkind_In (Unit (Cunit_Node), N_Package_Body, |
8349 | N_Subprogram_Body) | |
996ae0b0 RK |
8350 | then |
8351 | Error_Pragma ("pragma% must refer to a spec, not a body"); | |
8352 | else | |
8353 | Set_Body_Required (Cunit_Node, True); | |
f02b8bb8 | 8354 | Set_Has_Pragma_Elaborate_Body (Cunit_Ent); |
996ae0b0 RK |
8355 | |
8356 | -- If we are in dynamic elaboration mode, then we suppress | |
8357 | -- elaboration warnings for the unit, since it is definitely | |
8358 | -- fine NOT to do dynamic checks at the first level (and such | |
8359 | -- checks will be suppressed because no elaboration boolean | |
8360 | -- is created for Elaborate_Body packages). | |
8361 | ||
8362 | -- But in the static model of elaboration, Elaborate_Body is | |
8363 | -- definitely NOT good enough to ensure elaboration safety on | |
8364 | -- its own, since the body may WITH other units that are not | |
8365 | -- safe from an elaboration point of view, so a client must | |
8366 | -- still do an Elaborate_All on such units. | |
8367 | ||
b3b9865d AC |
8368 | -- Debug flag -gnatdD restores the old behavior of 3.13, where |
8369 | -- Elaborate_Body always suppressed elab warnings. | |
996ae0b0 RK |
8370 | |
8371 | if Dynamic_Elaboration_Checks or Debug_Flag_DD then | |
8372 | Set_Suppress_Elaboration_Warnings (Cunit_Ent); | |
8373 | end if; | |
8374 | end if; | |
8375 | end Elaborate_Body; | |
8376 | ||
8377 | ------------------------ | |
8378 | -- Elaboration_Checks -- | |
8379 | ------------------------ | |
8380 | ||
8381 | -- pragma Elaboration_Checks (Static | Dynamic); | |
8382 | ||
8383 | when Pragma_Elaboration_Checks => | |
8384 | GNAT_Pragma; | |
8385 | Check_Arg_Count (1); | |
8386 | Check_Arg_Is_One_Of (Arg1, Name_Static, Name_Dynamic); | |
8387 | Dynamic_Elaboration_Checks := | |
8388 | (Chars (Get_Pragma_Arg (Arg1)) = Name_Dynamic); | |
8389 | ||
8390 | --------------- | |
8391 | -- Eliminate -- | |
8392 | --------------- | |
8393 | ||
8394 | -- pragma Eliminate ( | |
ef7c5692 AC |
8395 | -- [Unit_Name =>] IDENTIFIER | SELECTED_COMPONENT, |
8396 | -- [,[Entity =>] IDENTIFIER | | |
8397 | -- SELECTED_COMPONENT | | |
8398 | -- STRING_LITERAL] | |
8399 | -- [, OVERLOADING_RESOLUTION]); | |
7324bf49 AC |
8400 | |
8401 | -- OVERLOADING_RESOLUTION ::= PARAMETER_AND_RESULT_TYPE_PROFILE | | |
8402 | -- SOURCE_LOCATION | |
8403 | ||
8404 | -- PARAMETER_AND_RESULT_TYPE_PROFILE ::= PROCEDURE_PROFILE | | |
8405 | -- FUNCTION_PROFILE | |
8406 | ||
8407 | -- PROCEDURE_PROFILE ::= Parameter_Types => PARAMETER_TYPES | |
8408 | ||
8409 | -- FUNCTION_PROFILE ::= [Parameter_Types => PARAMETER_TYPES,] | |
8410 | -- Result_Type => result_SUBTYPE_NAME] | |
996ae0b0 | 8411 | |
07fc65c4 GB |
8412 | -- PARAMETER_TYPES ::= (SUBTYPE_NAME {, SUBTYPE_NAME}) |
8413 | -- SUBTYPE_NAME ::= STRING_LITERAL | |
996ae0b0 | 8414 | |
7324bf49 AC |
8415 | -- SOURCE_LOCATION ::= Source_Location => SOURCE_TRACE |
8416 | -- SOURCE_TRACE ::= STRING_LITERAL | |
8417 | ||
07fc65c4 GB |
8418 | when Pragma_Eliminate => Eliminate : declare |
8419 | Args : Args_List (1 .. 5); | |
fbf5a39b | 8420 | Names : constant Name_List (1 .. 5) := ( |
07fc65c4 GB |
8421 | Name_Unit_Name, |
8422 | Name_Entity, | |
8423 | Name_Parameter_Types, | |
8424 | Name_Result_Type, | |
7324bf49 | 8425 | Name_Source_Location); |
07fc65c4 GB |
8426 | |
8427 | Unit_Name : Node_Id renames Args (1); | |
8428 | Entity : Node_Id renames Args (2); | |
8429 | Parameter_Types : Node_Id renames Args (3); | |
8430 | Result_Type : Node_Id renames Args (4); | |
7324bf49 | 8431 | Source_Location : Node_Id renames Args (5); |
07fc65c4 GB |
8432 | |
8433 | begin | |
996ae0b0 | 8434 | GNAT_Pragma; |
996ae0b0 | 8435 | Check_Valid_Configuration_Pragma; |
07fc65c4 | 8436 | Gather_Associations (Names, Args); |
996ae0b0 | 8437 | |
07fc65c4 GB |
8438 | if No (Unit_Name) then |
8439 | Error_Pragma ("missing Unit_Name argument for pragma%"); | |
8440 | end if; | |
996ae0b0 | 8441 | |
07fc65c4 GB |
8442 | if No (Entity) |
8443 | and then (Present (Parameter_Types) | |
8444 | or else | |
8445 | Present (Result_Type) | |
8446 | or else | |
7324bf49 | 8447 | Present (Source_Location)) |
07fc65c4 GB |
8448 | then |
8449 | Error_Pragma ("missing Entity argument for pragma%"); | |
996ae0b0 RK |
8450 | end if; |
8451 | ||
7324bf49 | 8452 | if (Present (Parameter_Types) |
e8374e7a | 8453 | or else |
7324bf49 AC |
8454 | Present (Result_Type)) |
8455 | and then | |
8456 | Present (Source_Location) | |
8457 | then | |
8458 | Error_Pragma | |
f02b8bb8 | 8459 | ("parameter profile and source location cannot " & |
7324bf49 AC |
8460 | "be used together in pragma%"); |
8461 | end if; | |
8462 | ||
07fc65c4 | 8463 | Process_Eliminate_Pragma |
91b1417d AC |
8464 | (N, |
8465 | Unit_Name, | |
07fc65c4 GB |
8466 | Entity, |
8467 | Parameter_Types, | |
8468 | Result_Type, | |
7324bf49 | 8469 | Source_Location); |
996ae0b0 RK |
8470 | end Eliminate; |
8471 | ||
12b4d338 AC |
8472 | ----------------------------------- |
8473 | -- Enable_Atomic_Synchronization -- | |
8474 | ----------------------------------- | |
8475 | ||
8476 | -- pragma Enable_Atomic_Synchronization [(Entity)]; | |
8477 | ||
8478 | when Pragma_Enable_Atomic_Synchronization => | |
8479 | Process_Disable_Enable_Atomic_Sync (Name_Unsuppress); | |
8480 | ||
996ae0b0 RK |
8481 | ------------ |
8482 | -- Export -- | |
8483 | ------------ | |
8484 | ||
8485 | -- pragma Export ( | |
8486 | -- [ Convention =>] convention_IDENTIFIER, | |
8487 | -- [ Entity =>] local_NAME | |
8488 | -- [, [External_Name =>] static_string_EXPRESSION ] | |
8489 | -- [, [Link_Name =>] static_string_EXPRESSION ]); | |
8490 | ||
8491 | when Pragma_Export => Export : declare | |
8492 | C : Convention_Id; | |
8493 | Def_Id : Entity_Id; | |
8494 | ||
67ce0d7e RD |
8495 | pragma Warnings (Off, C); |
8496 | ||
996ae0b0 RK |
8497 | begin |
8498 | Check_Ada_83_Warning; | |
59e5fbe0 RD |
8499 | Check_Arg_Order |
8500 | ((Name_Convention, | |
8501 | Name_Entity, | |
8502 | Name_External_Name, | |
8503 | Name_Link_Name)); | |
996ae0b0 RK |
8504 | Check_At_Least_N_Arguments (2); |
8505 | Check_At_Most_N_Arguments (4); | |
8506 | Process_Convention (C, Def_Id); | |
662e57b4 ES |
8507 | |
8508 | if Ekind (Def_Id) /= E_Constant then | |
0f1a6a0b AC |
8509 | Note_Possible_Modification |
8510 | (Get_Pragma_Arg (Arg2), Sure => False); | |
662e57b4 ES |
8511 | end if; |
8512 | ||
996ae0b0 RK |
8513 | Process_Interface_Name (Def_Id, Arg3, Arg4); |
8514 | Set_Exported (Def_Id, Arg2); | |
21d27997 | 8515 | |
b3b9865d AC |
8516 | -- If the entity is a deferred constant, propagate the information |
8517 | -- to the full view, because gigi elaborates the full view only. | |
21d27997 RD |
8518 | |
8519 | if Ekind (Def_Id) = E_Constant | |
8520 | and then Present (Full_View (Def_Id)) | |
8521 | then | |
8522 | declare | |
8523 | Id2 : constant Entity_Id := Full_View (Def_Id); | |
8524 | begin | |
8525 | Set_Is_Exported (Id2, Is_Exported (Def_Id)); | |
8526 | Set_First_Rep_Item (Id2, First_Rep_Item (Def_Id)); | |
8527 | Set_Interface_Name (Id2, Einfo.Interface_Name (Def_Id)); | |
8528 | end; | |
8529 | end if; | |
996ae0b0 RK |
8530 | end Export; |
8531 | ||
8532 | ---------------------- | |
8533 | -- Export_Exception -- | |
8534 | ---------------------- | |
8535 | ||
8536 | -- pragma Export_Exception ( | |
470cd9e9 RD |
8537 | -- [Internal =>] LOCAL_NAME |
8538 | -- [, [External =>] EXTERNAL_SYMBOL] | |
996ae0b0 RK |
8539 | -- [, [Form =>] Ada | VMS] |
8540 | -- [, [Code =>] static_integer_EXPRESSION]); | |
8541 | ||
8542 | when Pragma_Export_Exception => Export_Exception : declare | |
8543 | Args : Args_List (1 .. 4); | |
fbf5a39b | 8544 | Names : constant Name_List (1 .. 4) := ( |
996ae0b0 RK |
8545 | Name_Internal, |
8546 | Name_External, | |
8547 | Name_Form, | |
8548 | Name_Code); | |
8549 | ||
8550 | Internal : Node_Id renames Args (1); | |
8551 | External : Node_Id renames Args (2); | |
8552 | Form : Node_Id renames Args (3); | |
8553 | Code : Node_Id renames Args (4); | |
8554 | ||
8555 | begin | |
a30a01fe RD |
8556 | GNAT_Pragma; |
8557 | ||
996ae0b0 RK |
8558 | if Inside_A_Generic then |
8559 | Error_Pragma ("pragma% cannot be used for generic entities"); | |
8560 | end if; | |
8561 | ||
8562 | Gather_Associations (Names, Args); | |
8563 | Process_Extended_Import_Export_Exception_Pragma ( | |
8564 | Arg_Internal => Internal, | |
8565 | Arg_External => External, | |
8566 | Arg_Form => Form, | |
8567 | Arg_Code => Code); | |
8568 | ||
8569 | if not Is_VMS_Exception (Entity (Internal)) then | |
8570 | Set_Exported (Entity (Internal), Internal); | |
8571 | end if; | |
996ae0b0 RK |
8572 | end Export_Exception; |
8573 | ||
8574 | --------------------- | |
8575 | -- Export_Function -- | |
8576 | --------------------- | |
8577 | ||
8578 | -- pragma Export_Function ( | |
470cd9e9 RD |
8579 | -- [Internal =>] LOCAL_NAME |
8580 | -- [, [External =>] EXTERNAL_SYMBOL] | |
996ae0b0 | 8581 | -- [, [Parameter_Types =>] (PARAMETER_TYPES)] |
fbf5a39b | 8582 | -- [, [Result_Type =>] TYPE_DESIGNATOR] |
996ae0b0 RK |
8583 | -- [, [Mechanism =>] MECHANISM] |
8584 | -- [, [Result_Mechanism =>] MECHANISM_NAME]); | |
8585 | ||
fbf5a39b AC |
8586 | -- EXTERNAL_SYMBOL ::= |
8587 | -- IDENTIFIER | |
8588 | -- | static_string_EXPRESSION | |
8589 | ||
8590 | -- PARAMETER_TYPES ::= | |
8591 | -- null | |
8592 | -- | TYPE_DESIGNATOR @{, TYPE_DESIGNATOR@} | |
8593 | ||
8594 | -- TYPE_DESIGNATOR ::= | |
8595 | -- subtype_NAME | |
8596 | -- | subtype_Name ' Access | |
8597 | ||
8598 | -- MECHANISM ::= | |
8599 | -- MECHANISM_NAME | |
8600 | -- | (MECHANISM_ASSOCIATION @{, MECHANISM_ASSOCIATION@}) | |
8601 | ||
8602 | -- MECHANISM_ASSOCIATION ::= | |
8603 | -- [formal_parameter_NAME =>] MECHANISM_NAME | |
8604 | ||
8605 | -- MECHANISM_NAME ::= | |
8606 | -- Value | |
8607 | -- | Reference | |
8608 | -- | Descriptor [([Class =>] CLASS_NAME)] | |
8609 | ||
8610 | -- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca | |
8611 | ||
996ae0b0 RK |
8612 | when Pragma_Export_Function => Export_Function : declare |
8613 | Args : Args_List (1 .. 6); | |
fbf5a39b | 8614 | Names : constant Name_List (1 .. 6) := ( |
996ae0b0 RK |
8615 | Name_Internal, |
8616 | Name_External, | |
8617 | Name_Parameter_Types, | |
8618 | Name_Result_Type, | |
8619 | Name_Mechanism, | |
8620 | Name_Result_Mechanism); | |
8621 | ||
8622 | Internal : Node_Id renames Args (1); | |
8623 | External : Node_Id renames Args (2); | |
8624 | Parameter_Types : Node_Id renames Args (3); | |
8625 | Result_Type : Node_Id renames Args (4); | |
8626 | Mechanism : Node_Id renames Args (5); | |
8627 | Result_Mechanism : Node_Id renames Args (6); | |
8628 | ||
8629 | begin | |
8630 | GNAT_Pragma; | |
8631 | Gather_Associations (Names, Args); | |
8632 | Process_Extended_Import_Export_Subprogram_Pragma ( | |
8633 | Arg_Internal => Internal, | |
8634 | Arg_External => External, | |
8635 | Arg_Parameter_Types => Parameter_Types, | |
8636 | Arg_Result_Type => Result_Type, | |
8637 | Arg_Mechanism => Mechanism, | |
8638 | Arg_Result_Mechanism => Result_Mechanism); | |
8639 | end Export_Function; | |
8640 | ||
8641 | ------------------- | |
8642 | -- Export_Object -- | |
8643 | ------------------- | |
8644 | ||
8645 | -- pragma Export_Object ( | |
470cd9e9 | 8646 | -- [Internal =>] LOCAL_NAME |
996ae0b0 RK |
8647 | -- [, [External =>] EXTERNAL_SYMBOL] |
8648 | -- [, [Size =>] EXTERNAL_SYMBOL]); | |
8649 | ||
fbf5a39b AC |
8650 | -- EXTERNAL_SYMBOL ::= |
8651 | -- IDENTIFIER | |
8652 | -- | static_string_EXPRESSION | |
8653 | ||
8654 | -- PARAMETER_TYPES ::= | |
8655 | -- null | |
8656 | -- | TYPE_DESIGNATOR @{, TYPE_DESIGNATOR@} | |
8657 | ||
8658 | -- TYPE_DESIGNATOR ::= | |
8659 | -- subtype_NAME | |
8660 | -- | subtype_Name ' Access | |
8661 | ||
8662 | -- MECHANISM ::= | |
8663 | -- MECHANISM_NAME | |
8664 | -- | (MECHANISM_ASSOCIATION @{, MECHANISM_ASSOCIATION@}) | |
8665 | ||
8666 | -- MECHANISM_ASSOCIATION ::= | |
8667 | -- [formal_parameter_NAME =>] MECHANISM_NAME | |
8668 | ||
8669 | -- MECHANISM_NAME ::= | |
8670 | -- Value | |
8671 | -- | Reference | |
8672 | -- | Descriptor [([Class =>] CLASS_NAME)] | |
8673 | ||
8674 | -- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca | |
8675 | ||
8676 | when Pragma_Export_Object => Export_Object : declare | |
996ae0b0 | 8677 | Args : Args_List (1 .. 3); |
fbf5a39b | 8678 | Names : constant Name_List (1 .. 3) := ( |
996ae0b0 RK |
8679 | Name_Internal, |
8680 | Name_External, | |
8681 | Name_Size); | |
8682 | ||
8683 | Internal : Node_Id renames Args (1); | |
8684 | External : Node_Id renames Args (2); | |
8685 | Size : Node_Id renames Args (3); | |
8686 | ||
8687 | begin | |
8688 | GNAT_Pragma; | |
8689 | Gather_Associations (Names, Args); | |
8690 | Process_Extended_Import_Export_Object_Pragma ( | |
8691 | Arg_Internal => Internal, | |
8692 | Arg_External => External, | |
8693 | Arg_Size => Size); | |
8694 | end Export_Object; | |
8695 | ||
8696 | ---------------------- | |
8697 | -- Export_Procedure -- | |
8698 | ---------------------- | |
8699 | ||
8700 | -- pragma Export_Procedure ( | |
470cd9e9 RD |
8701 | -- [Internal =>] LOCAL_NAME |
8702 | -- [, [External =>] EXTERNAL_SYMBOL] | |
996ae0b0 RK |
8703 | -- [, [Parameter_Types =>] (PARAMETER_TYPES)] |
8704 | -- [, [Mechanism =>] MECHANISM]); | |
8705 | ||
fbf5a39b AC |
8706 | -- EXTERNAL_SYMBOL ::= |
8707 | -- IDENTIFIER | |
8708 | -- | static_string_EXPRESSION | |
8709 | ||
8710 | -- PARAMETER_TYPES ::= | |
8711 | -- null | |
8712 | -- | TYPE_DESIGNATOR @{, TYPE_DESIGNATOR@} | |
8713 | ||
8714 | -- TYPE_DESIGNATOR ::= | |
8715 | -- subtype_NAME | |
8716 | -- | subtype_Name ' Access | |
8717 | ||
8718 | -- MECHANISM ::= | |
8719 | -- MECHANISM_NAME | |
8720 | -- | (MECHANISM_ASSOCIATION @{, MECHANISM_ASSOCIATION@}) | |
8721 | ||
8722 | -- MECHANISM_ASSOCIATION ::= | |
8723 | -- [formal_parameter_NAME =>] MECHANISM_NAME | |
8724 | ||
8725 | -- MECHANISM_NAME ::= | |
8726 | -- Value | |
8727 | -- | Reference | |
8728 | -- | Descriptor [([Class =>] CLASS_NAME)] | |
8729 | ||
8730 | -- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca | |
8731 | ||
996ae0b0 RK |
8732 | when Pragma_Export_Procedure => Export_Procedure : declare |
8733 | Args : Args_List (1 .. 4); | |
fbf5a39b | 8734 | Names : constant Name_List (1 .. 4) := ( |
996ae0b0 RK |
8735 | Name_Internal, |
8736 | Name_External, | |
8737 | Name_Parameter_Types, | |
8738 | Name_Mechanism); | |
8739 | ||
8740 | Internal : Node_Id renames Args (1); | |
8741 | External : Node_Id renames Args (2); | |
8742 | Parameter_Types : Node_Id renames Args (3); | |
8743 | Mechanism : Node_Id renames Args (4); | |
8744 | ||
8745 | begin | |
8746 | GNAT_Pragma; | |
8747 | Gather_Associations (Names, Args); | |
8748 | Process_Extended_Import_Export_Subprogram_Pragma ( | |
8749 | Arg_Internal => Internal, | |
8750 | Arg_External => External, | |
8751 | Arg_Parameter_Types => Parameter_Types, | |
8752 | Arg_Mechanism => Mechanism); | |
8753 | end Export_Procedure; | |
8754 | ||
fbf5a39b AC |
8755 | ------------------ |
8756 | -- Export_Value -- | |
8757 | ------------------ | |
8758 | ||
8759 | -- pragma Export_Value ( | |
8760 | -- [Value =>] static_integer_EXPRESSION, | |
8761 | -- [Link_Name =>] static_string_EXPRESSION); | |
8762 | ||
8763 | when Pragma_Export_Value => | |
8764 | GNAT_Pragma; | |
59e5fbe0 | 8765 | Check_Arg_Order ((Name_Value, Name_Link_Name)); |
fbf5a39b AC |
8766 | Check_Arg_Count (2); |
8767 | ||
8768 | Check_Optional_Identifier (Arg1, Name_Value); | |
8769 | Check_Arg_Is_Static_Expression (Arg1, Any_Integer); | |
8770 | ||
8771 | Check_Optional_Identifier (Arg2, Name_Link_Name); | |
8772 | Check_Arg_Is_Static_Expression (Arg2, Standard_String); | |
8773 | ||
996ae0b0 RK |
8774 | ----------------------------- |
8775 | -- Export_Valued_Procedure -- | |
8776 | ----------------------------- | |
8777 | ||
8778 | -- pragma Export_Valued_Procedure ( | |
470cd9e9 | 8779 | -- [Internal =>] LOCAL_NAME |
996ae0b0 RK |
8780 | -- [, [External =>] EXTERNAL_SYMBOL,] |
8781 | -- [, [Parameter_Types =>] (PARAMETER_TYPES)] | |
8782 | -- [, [Mechanism =>] MECHANISM]); | |
8783 | ||
fbf5a39b AC |
8784 | -- EXTERNAL_SYMBOL ::= |
8785 | -- IDENTIFIER | |
8786 | -- | static_string_EXPRESSION | |
8787 | ||
8788 | -- PARAMETER_TYPES ::= | |
8789 | -- null | |
8790 | -- | TYPE_DESIGNATOR @{, TYPE_DESIGNATOR@} | |
8791 | ||
8792 | -- TYPE_DESIGNATOR ::= | |
8793 | -- subtype_NAME | |
8794 | -- | subtype_Name ' Access | |
8795 | ||
8796 | -- MECHANISM ::= | |
8797 | -- MECHANISM_NAME | |
8798 | -- | (MECHANISM_ASSOCIATION @{, MECHANISM_ASSOCIATION@}) | |
8799 | ||
8800 | -- MECHANISM_ASSOCIATION ::= | |
8801 | -- [formal_parameter_NAME =>] MECHANISM_NAME | |
8802 | ||
8803 | -- MECHANISM_NAME ::= | |
8804 | -- Value | |
8805 | -- | Reference | |
8806 | -- | Descriptor [([Class =>] CLASS_NAME)] | |
8807 | ||
8808 | -- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca | |
8809 | ||
996ae0b0 RK |
8810 | when Pragma_Export_Valued_Procedure => |
8811 | Export_Valued_Procedure : declare | |
8812 | Args : Args_List (1 .. 4); | |
fbf5a39b | 8813 | Names : constant Name_List (1 .. 4) := ( |
996ae0b0 RK |
8814 | Name_Internal, |
8815 | Name_External, | |
8816 | Name_Parameter_Types, | |
8817 | Name_Mechanism); | |
8818 | ||
8819 | Internal : Node_Id renames Args (1); | |
8820 | External : Node_Id renames Args (2); | |
8821 | Parameter_Types : Node_Id renames Args (3); | |
8822 | Mechanism : Node_Id renames Args (4); | |
8823 | ||
8824 | begin | |
8825 | GNAT_Pragma; | |
8826 | Gather_Associations (Names, Args); | |
8827 | Process_Extended_Import_Export_Subprogram_Pragma ( | |
8828 | Arg_Internal => Internal, | |
8829 | Arg_External => External, | |
8830 | Arg_Parameter_Types => Parameter_Types, | |
8831 | Arg_Mechanism => Mechanism); | |
8832 | end Export_Valued_Procedure; | |
8833 | ||
8834 | ------------------- | |
8835 | -- Extend_System -- | |
8836 | ------------------- | |
8837 | ||
8838 | -- pragma Extend_System ([Name =>] Identifier); | |
8839 | ||
8840 | when Pragma_Extend_System => Extend_System : declare | |
8841 | begin | |
8842 | GNAT_Pragma; | |
8843 | Check_Valid_Configuration_Pragma; | |
8844 | Check_Arg_Count (1); | |
8845 | Check_Optional_Identifier (Arg1, Name_Name); | |
8846 | Check_Arg_Is_Identifier (Arg1); | |
8847 | ||
0f1a6a0b | 8848 | Get_Name_String (Chars (Get_Pragma_Arg (Arg1))); |
996ae0b0 RK |
8849 | |
8850 | if Name_Len > 4 | |
8851 | and then Name_Buffer (1 .. 4) = "aux_" | |
8852 | then | |
8853 | if Present (System_Extend_Pragma_Arg) then | |
0f1a6a0b | 8854 | if Chars (Get_Pragma_Arg (Arg1)) = |
996ae0b0 RK |
8855 | Chars (Expression (System_Extend_Pragma_Arg)) |
8856 | then | |
8857 | null; | |
8858 | else | |
8859 | Error_Msg_Sloc := Sloc (System_Extend_Pragma_Arg); | |
c690a2ec | 8860 | Error_Pragma ("pragma% conflicts with that #"); |
996ae0b0 RK |
8861 | end if; |
8862 | ||
8863 | else | |
8864 | System_Extend_Pragma_Arg := Arg1; | |
fbf5a39b AC |
8865 | |
8866 | if not GNAT_Mode then | |
8867 | System_Extend_Unit := Arg1; | |
8868 | end if; | |
996ae0b0 RK |
8869 | end if; |
8870 | else | |
8871 | Error_Pragma ("incorrect name for pragma%, must be Aux_xxx"); | |
8872 | end if; | |
8873 | end Extend_System; | |
8874 | ||
8875 | ------------------------ | |
8876 | -- Extensions_Allowed -- | |
8877 | ------------------------ | |
8878 | ||
8879 | -- pragma Extensions_Allowed (ON | OFF); | |
8880 | ||
8881 | when Pragma_Extensions_Allowed => | |
8882 | GNAT_Pragma; | |
8883 | Check_Arg_Count (1); | |
8884 | Check_No_Identifiers; | |
8885 | Check_Arg_Is_One_Of (Arg1, Name_On, Name_Off); | |
0ab80019 | 8886 | |
0f1a6a0b | 8887 | if Chars (Get_Pragma_Arg (Arg1)) = Name_On then |
0ab80019 | 8888 | Extensions_Allowed := True; |
0eed45bb AC |
8889 | Ada_Version := Ada_Version_Type'Last; |
8890 | ||
0ab80019 AC |
8891 | else |
8892 | Extensions_Allowed := False; | |
0eed45bb | 8893 | Ada_Version := Ada_Version_Explicit; |
0ab80019 | 8894 | end if; |
996ae0b0 | 8895 | |
72e4357f RD |
8896 | -------------- |
8897 | -- External -- | |
8898 | -------------- | |
8899 | ||
8900 | -- pragma External ( | |
8901 | -- [ Convention =>] convention_IDENTIFIER, | |
8902 | -- [ Entity =>] local_NAME | |
8903 | -- [, [External_Name =>] static_string_EXPRESSION ] | |
8904 | -- [, [Link_Name =>] static_string_EXPRESSION ]); | |
8905 | ||
8906 | when Pragma_External => External : declare | |
67ce0d7e RD |
8907 | Def_Id : Entity_Id; |
8908 | ||
8909 | C : Convention_Id; | |
8910 | pragma Warnings (Off, C); | |
8911 | ||
72e4357f RD |
8912 | begin |
8913 | GNAT_Pragma; | |
59e5fbe0 RD |
8914 | Check_Arg_Order |
8915 | ((Name_Convention, | |
8916 | Name_Entity, | |
8917 | Name_External_Name, | |
8918 | Name_Link_Name)); | |
72e4357f RD |
8919 | Check_At_Least_N_Arguments (2); |
8920 | Check_At_Most_N_Arguments (4); | |
8921 | Process_Convention (C, Def_Id); | |
0f1a6a0b AC |
8922 | Note_Possible_Modification |
8923 | (Get_Pragma_Arg (Arg2), Sure => False); | |
72e4357f RD |
8924 | Process_Interface_Name (Def_Id, Arg3, Arg4); |
8925 | Set_Exported (Def_Id, Arg2); | |
8926 | end External; | |
8927 | ||
996ae0b0 RK |
8928 | -------------------------- |
8929 | -- External_Name_Casing -- | |
8930 | -------------------------- | |
8931 | ||
8932 | -- pragma External_Name_Casing ( | |
8933 | -- UPPERCASE | LOWERCASE | |
8934 | -- [, AS_IS | UPPERCASE | LOWERCASE]); | |
8935 | ||
2c9beb8a | 8936 | when Pragma_External_Name_Casing => External_Name_Casing : declare |
996ae0b0 RK |
8937 | begin |
8938 | GNAT_Pragma; | |
8939 | Check_No_Identifiers; | |
8940 | ||
8941 | if Arg_Count = 2 then | |
8942 | Check_Arg_Is_One_Of | |
8943 | (Arg2, Name_As_Is, Name_Uppercase, Name_Lowercase); | |
8944 | ||
8945 | case Chars (Get_Pragma_Arg (Arg2)) is | |
8946 | when Name_As_Is => | |
8947 | Opt.External_Name_Exp_Casing := As_Is; | |
8948 | ||
8949 | when Name_Uppercase => | |
8950 | Opt.External_Name_Exp_Casing := Uppercase; | |
8951 | ||
8952 | when Name_Lowercase => | |
8953 | Opt.External_Name_Exp_Casing := Lowercase; | |
8954 | ||
8955 | when others => | |
8956 | null; | |
8957 | end case; | |
8958 | ||
8959 | else | |
8960 | Check_Arg_Count (1); | |
8961 | end if; | |
8962 | ||
8963 | Check_Arg_Is_One_Of (Arg1, Name_Uppercase, Name_Lowercase); | |
8964 | ||
8965 | case Chars (Get_Pragma_Arg (Arg1)) is | |
8966 | when Name_Uppercase => | |
8967 | Opt.External_Name_Imp_Casing := Uppercase; | |
8968 | ||
8969 | when Name_Lowercase => | |
8970 | Opt.External_Name_Imp_Casing := Lowercase; | |
8971 | ||
8972 | when others => | |
8973 | null; | |
8974 | end case; | |
996ae0b0 RK |
8975 | end External_Name_Casing; |
8976 | ||
470cd9e9 RD |
8977 | -------------------------- |
8978 | -- Favor_Top_Level -- | |
8979 | -------------------------- | |
8980 | ||
8981 | -- pragma Favor_Top_Level (type_NAME); | |
8982 | ||
8983 | when Pragma_Favor_Top_Level => Favor_Top_Level : declare | |
8984 | Named_Entity : Entity_Id; | |
8985 | ||
8986 | begin | |
8987 | GNAT_Pragma; | |
8988 | Check_No_Identifiers; | |
8989 | Check_Arg_Count (1); | |
8990 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 8991 | Named_Entity := Entity (Get_Pragma_Arg (Arg1)); |
470cd9e9 RD |
8992 | |
8993 | -- If it's an access-to-subprogram type (in particular, not a | |
8994 | -- subtype), set the flag on that type. | |
8995 | ||
1b24ada5 | 8996 | if Is_Access_Subprogram_Type (Named_Entity) then |
eaba57fb | 8997 | Set_Can_Use_Internal_Rep (Named_Entity, False); |
470cd9e9 RD |
8998 | |
8999 | -- Otherwise it's an error (name denotes the wrong sort of entity) | |
9000 | ||
9001 | else | |
9002 | Error_Pragma_Arg | |
0f1a6a0b AC |
9003 | ("access-to-subprogram type expected", |
9004 | Get_Pragma_Arg (Arg1)); | |
470cd9e9 RD |
9005 | end if; |
9006 | end Favor_Top_Level; | |
9007 | ||
9008 | --------------- | |
9009 | -- Fast_Math -- | |
9010 | --------------- | |
9011 | ||
9012 | -- pragma Fast_Math; | |
9013 | ||
9014 | when Pragma_Fast_Math => | |
9015 | GNAT_Pragma; | |
9016 | Check_No_Identifiers; | |
9017 | Check_Valid_Configuration_Pragma; | |
9018 | Fast_Math := True; | |
9019 | ||
996ae0b0 RK |
9020 | --------------------------- |
9021 | -- Finalize_Storage_Only -- | |
9022 | --------------------------- | |
9023 | ||
9024 | -- pragma Finalize_Storage_Only (first_subtype_LOCAL_NAME); | |
9025 | ||
9026 | when Pragma_Finalize_Storage_Only => Finalize_Storage : declare | |
fbf5a39b | 9027 | Assoc : constant Node_Id := Arg1; |
0f1a6a0b | 9028 | Type_Id : constant Node_Id := Get_Pragma_Arg (Assoc); |
996ae0b0 RK |
9029 | Typ : Entity_Id; |
9030 | ||
9031 | begin | |
a30a01fe | 9032 | GNAT_Pragma; |
996ae0b0 RK |
9033 | Check_No_Identifiers; |
9034 | Check_Arg_Count (1); | |
9035 | Check_Arg_Is_Local_Name (Arg1); | |
9036 | ||
9037 | Find_Type (Type_Id); | |
9038 | Typ := Entity (Type_Id); | |
9039 | ||
9040 | if Typ = Any_Type | |
9041 | or else Rep_Item_Too_Early (Typ, N) | |
9042 | then | |
9043 | return; | |
9044 | else | |
9045 | Typ := Underlying_Type (Typ); | |
9046 | end if; | |
9047 | ||
9048 | if not Is_Controlled (Typ) then | |
9049 | Error_Pragma ("pragma% must specify controlled type"); | |
9050 | end if; | |
9051 | ||
9052 | Check_First_Subtype (Arg1); | |
9053 | ||
9054 | if Finalize_Storage_Only (Typ) then | |
9055 | Error_Pragma ("duplicate pragma%, only one allowed"); | |
9056 | ||
9057 | elsif not Rep_Item_Too_Late (Typ, N) then | |
07fc65c4 | 9058 | Set_Finalize_Storage_Only (Base_Type (Typ), True); |
996ae0b0 RK |
9059 | end if; |
9060 | end Finalize_Storage; | |
9061 | ||
9062 | -------------------------- | |
9063 | -- Float_Representation -- | |
9064 | -------------------------- | |
9065 | ||
6e18b0e5 RD |
9066 | -- pragma Float_Representation (FLOAT_REP[, float_type_LOCAL_NAME]); |
9067 | ||
9068 | -- FLOAT_REP ::= VAX_Float | IEEE_Float | |
996ae0b0 RK |
9069 | |
9070 | when Pragma_Float_Representation => Float_Representation : declare | |
9071 | Argx : Node_Id; | |
9072 | Digs : Nat; | |
9073 | Ent : Entity_Id; | |
9074 | ||
9075 | begin | |
9076 | GNAT_Pragma; | |
9077 | ||
9078 | if Arg_Count = 1 then | |
9079 | Check_Valid_Configuration_Pragma; | |
9080 | else | |
9081 | Check_Arg_Count (2); | |
9082 | Check_Optional_Identifier (Arg2, Name_Entity); | |
9083 | Check_Arg_Is_Local_Name (Arg2); | |
9084 | end if; | |
9085 | ||
9086 | Check_No_Identifier (Arg1); | |
9087 | Check_Arg_Is_One_Of (Arg1, Name_VAX_Float, Name_IEEE_Float); | |
9088 | ||
9089 | if not OpenVMS_On_Target then | |
0f1a6a0b | 9090 | if Chars (Get_Pragma_Arg (Arg1)) = Name_VAX_Float then |
996ae0b0 RK |
9091 | Error_Pragma |
9092 | ("?pragma% ignored (applies only to Open'V'M'S)"); | |
9093 | end if; | |
9094 | ||
9095 | return; | |
9096 | end if; | |
9097 | ||
9098 | -- One argument case | |
9099 | ||
9100 | if Arg_Count = 1 then | |
0f1a6a0b | 9101 | if Chars (Get_Pragma_Arg (Arg1)) = Name_VAX_Float then |
996ae0b0 RK |
9102 | if Opt.Float_Format = 'I' then |
9103 | Error_Pragma ("'I'E'E'E format previously specified"); | |
9104 | end if; | |
9105 | ||
9106 | Opt.Float_Format := 'V'; | |
9107 | ||
9108 | else | |
9109 | if Opt.Float_Format = 'V' then | |
9110 | Error_Pragma ("'V'A'X format previously specified"); | |
9111 | end if; | |
9112 | ||
9113 | Opt.Float_Format := 'I'; | |
9114 | end if; | |
9115 | ||
9116 | Set_Standard_Fpt_Formats; | |
9117 | ||
9118 | -- Two argument case | |
9119 | ||
9120 | else | |
9121 | Argx := Get_Pragma_Arg (Arg2); | |
9122 | ||
9123 | if not Is_Entity_Name (Argx) | |
9124 | or else not Is_Floating_Point_Type (Entity (Argx)) | |
9125 | then | |
9126 | Error_Pragma_Arg | |
9127 | ("second argument of% pragma must be floating-point type", | |
9128 | Arg2); | |
9129 | end if; | |
9130 | ||
9131 | Ent := Entity (Argx); | |
9132 | Digs := UI_To_Int (Digits_Value (Ent)); | |
9133 | ||
9134 | -- Two arguments, VAX_Float case | |
9135 | ||
0f1a6a0b | 9136 | if Chars (Get_Pragma_Arg (Arg1)) = Name_VAX_Float then |
996ae0b0 RK |
9137 | case Digs is |
9138 | when 6 => Set_F_Float (Ent); | |
9139 | when 9 => Set_D_Float (Ent); | |
9140 | when 15 => Set_G_Float (Ent); | |
9141 | ||
9142 | when others => | |
9143 | Error_Pragma_Arg | |
9144 | ("wrong digits value, must be 6,9 or 15", Arg2); | |
9145 | end case; | |
9146 | ||
9147 | -- Two arguments, IEEE_Float case | |
9148 | ||
9149 | else | |
9150 | case Digs is | |
9151 | when 6 => Set_IEEE_Short (Ent); | |
9152 | when 15 => Set_IEEE_Long (Ent); | |
9153 | ||
9154 | when others => | |
9155 | Error_Pragma_Arg | |
9156 | ("wrong digits value, must be 6 or 15", Arg2); | |
9157 | end case; | |
9158 | end if; | |
9159 | end if; | |
996ae0b0 RK |
9160 | end Float_Representation; |
9161 | ||
9162 | ----------- | |
9163 | -- Ident -- | |
9164 | ----------- | |
9165 | ||
9166 | -- pragma Ident (static_string_EXPRESSION) | |
9167 | ||
b3b9865d AC |
9168 | -- Note: pragma Comment shares this processing. Pragma Comment is |
9169 | -- identical to Ident, except that the restriction of the argument to | |
9170 | -- 31 characters and the placement restrictions are not enforced for | |
9171 | -- pragma Comment. | |
996ae0b0 RK |
9172 | |
9173 | when Pragma_Ident | Pragma_Comment => Ident : declare | |
9174 | Str : Node_Id; | |
9175 | ||
9176 | begin | |
9177 | GNAT_Pragma; | |
9178 | Check_Arg_Count (1); | |
9179 | Check_No_Identifiers; | |
9180 | Check_Arg_Is_Static_Expression (Arg1, Standard_String); | |
7eaa7cdf | 9181 | Store_Note (N); |
996ae0b0 | 9182 | |
b3b9865d AC |
9183 | -- For pragma Ident, preserve DEC compatibility by requiring the |
9184 | -- pragma to appear in a declarative part or package spec. | |
996ae0b0 RK |
9185 | |
9186 | if Prag_Id = Pragma_Ident then | |
9187 | Check_Is_In_Decl_Part_Or_Package_Spec; | |
9188 | end if; | |
9189 | ||
0f1a6a0b | 9190 | Str := Expr_Value_S (Get_Pragma_Arg (Arg1)); |
996ae0b0 | 9191 | |
996ae0b0 RK |
9192 | declare |
9193 | CS : Node_Id; | |
9194 | GP : Node_Id; | |
9195 | ||
9196 | begin | |
9197 | GP := Parent (Parent (N)); | |
9198 | ||
d7ba4df4 RD |
9199 | if Nkind_In (GP, N_Package_Declaration, |
9200 | N_Generic_Package_Declaration) | |
996ae0b0 RK |
9201 | then |
9202 | GP := Parent (GP); | |
9203 | end if; | |
9204 | ||
b3b9865d AC |
9205 | -- If we have a compilation unit, then record the ident value, |
9206 | -- checking for improper duplication. | |
996ae0b0 RK |
9207 | |
9208 | if Nkind (GP) = N_Compilation_Unit then | |
9209 | CS := Ident_String (Current_Sem_Unit); | |
9210 | ||
9211 | if Present (CS) then | |
9212 | ||
9213 | -- For Ident, we do not permit multiple instances | |
9214 | ||
9215 | if Prag_Id = Pragma_Ident then | |
9216 | Error_Pragma ("duplicate% pragma not permitted"); | |
9217 | ||
b3b9865d AC |
9218 | -- For Comment, we concatenate the string, unless we want |
9219 | -- to preserve the tree structure for ASIS. | |
996ae0b0 | 9220 | |
fbf5a39b | 9221 | elsif not ASIS_Mode then |
996ae0b0 RK |
9222 | Start_String (Strval (CS)); |
9223 | Store_String_Char (' '); | |
9224 | Store_String_Chars (Strval (Str)); | |
9225 | Set_Strval (CS, End_String); | |
9226 | end if; | |
9227 | ||
9228 | else | |
9229 | -- In VMS, the effect of IDENT is achieved by passing | |
7425962b | 9230 | -- --identification=name as a --for-linker switch. |
996ae0b0 RK |
9231 | |
9232 | if OpenVMS_On_Target then | |
9233 | Start_String; | |
9234 | Store_String_Chars | |
7425962b | 9235 | ("--for-linker=--identification="); |
996ae0b0 RK |
9236 | String_To_Name_Buffer (Strval (Str)); |
9237 | Store_String_Chars (Name_Buffer (1 .. Name_Len)); | |
9238 | ||
9239 | -- Only the last processed IDENT is saved. The main | |
9240 | -- purpose is so an IDENT associated with a main | |
9241 | -- procedure will be used in preference to an IDENT | |
9242 | -- associated with a with'd package. | |
9243 | ||
9244 | Replace_Linker_Option_String | |
7425962b | 9245 | (End_String, "--for-linker=--identification="); |
996ae0b0 RK |
9246 | end if; |
9247 | ||
9248 | Set_Ident_String (Current_Sem_Unit, Str); | |
9249 | end if; | |
9250 | ||
b3b9865d AC |
9251 | -- For subunits, we just ignore the Ident, since in GNAT these |
9252 | -- are not separate object files, and hence not separate units | |
9253 | -- in the unit table. | |
996ae0b0 RK |
9254 | |
9255 | elsif Nkind (GP) = N_Subunit then | |
9256 | null; | |
9257 | ||
9258 | -- Otherwise we have a misplaced pragma Ident, but we ignore | |
9259 | -- this if we are in an instantiation, since it comes from | |
9260 | -- a generic, and has no relevance to the instantiation. | |
9261 | ||
9262 | elsif Prag_Id = Pragma_Ident then | |
9263 | if Instantiation_Location (Loc) = No_Location then | |
9264 | Error_Pragma ("pragma% only allowed at outer level"); | |
9265 | end if; | |
9266 | end if; | |
9267 | end; | |
9268 | end Ident; | |
9269 | ||
df177175 RD |
9270 | ---------------------------- |
9271 | -- Implementation_Defined -- | |
9272 | ---------------------------- | |
9273 | ||
9274 | -- pragma Implementation_Defined (local_NAME); | |
9275 | ||
9276 | -- Marks previously declared entity as implementation defined. For | |
9277 | -- an overloaded entity, applies to the most recent homonym. | |
9278 | ||
9279 | -- pragma Implementation_Defined; | |
9280 | ||
9281 | -- The form with no arguments appears anywhere within a scope, most | |
9282 | -- typically a package spec, and indicates that all entities that are | |
9283 | -- defined within the package spec are Implementation_Defined. | |
9284 | ||
9285 | when Pragma_Implementation_Defined => Implementation_Defined : declare | |
9286 | Ent : Entity_Id; | |
9287 | ||
9288 | begin | |
9289 | Check_No_Identifiers; | |
9290 | ||
9291 | -- Form with no arguments | |
9292 | ||
9293 | if Arg_Count = 0 then | |
9294 | Set_Is_Implementation_Defined (Current_Scope); | |
9295 | ||
9296 | -- Form with one argument | |
9297 | ||
9298 | else | |
9299 | Check_Arg_Count (1); | |
9300 | Check_Arg_Is_Local_Name (Arg1); | |
9301 | Ent := Entity (Get_Pragma_Arg (Arg1)); | |
9302 | Set_Is_Implementation_Defined (Ent); | |
9303 | end if; | |
9304 | end Implementation_Defined; | |
9305 | ||
bfae1846 AC |
9306 | ----------------- |
9307 | -- Implemented -- | |
9308 | ----------------- | |
470cd9e9 | 9309 | |
bfae1846 AC |
9310 | -- pragma Implemented (procedure_LOCAL_NAME, implementation_kind); |
9311 | -- implementation_kind ::= By_Entry | By_Protected_Procedure | By_Any | |
470cd9e9 | 9312 | |
bfae1846 AC |
9313 | when Pragma_Implemented => Implemented : declare |
9314 | Proc_Id : Entity_Id; | |
9315 | Typ : Entity_Id; | |
470cd9e9 RD |
9316 | |
9317 | begin | |
bfae1846 AC |
9318 | Ada_2012_Pragma; |
9319 | Check_Arg_Count (2); | |
470cd9e9 RD |
9320 | Check_No_Identifiers; |
9321 | Check_Arg_Is_Identifier (Arg1); | |
9322 | Check_Arg_Is_Local_Name (Arg1); | |
bfae1846 AC |
9323 | Check_Arg_Is_One_Of |
9324 | (Arg2, Name_By_Any, Name_By_Entry, Name_By_Protected_Procedure); | |
9325 | ||
9326 | -- Extract the name of the local procedure | |
470cd9e9 | 9327 | |
0f1a6a0b | 9328 | Proc_Id := Entity (Get_Pragma_Arg (Arg1)); |
470cd9e9 | 9329 | |
bfae1846 AC |
9330 | -- Ada 2012 (AI05-0030): The procedure_LOCAL_NAME must denote a |
9331 | -- primitive procedure of a synchronized tagged type. | |
9332 | ||
9333 | if Ekind (Proc_Id) = E_Procedure | |
9334 | and then Is_Primitive (Proc_Id) | |
9335 | and then Present (First_Formal (Proc_Id)) | |
470cd9e9 | 9336 | then |
bfae1846 | 9337 | Typ := Etype (First_Formal (Proc_Id)); |
470cd9e9 | 9338 | |
bfae1846 AC |
9339 | if Is_Tagged_Type (Typ) |
9340 | and then | |
9341 | ||
9342 | -- Check for a protected, a synchronized or a task interface | |
9343 | ||
9344 | ((Is_Interface (Typ) | |
9345 | and then Is_Synchronized_Interface (Typ)) | |
9346 | ||
9347 | -- Check for a protected type or a task type that implements | |
9348 | -- an interface. | |
9349 | ||
9350 | or else | |
9351 | (Is_Concurrent_Record_Type (Typ) | |
9352 | and then Present (Interfaces (Typ))) | |
9353 | ||
9354 | -- Check for a private record extension with keyword | |
9355 | -- "synchronized". | |
9356 | ||
9357 | or else | |
9358 | (Ekind_In (Typ, E_Record_Type_With_Private, | |
9359 | E_Record_Subtype_With_Private) | |
9360 | and then Synchronized_Present (Parent (Typ)))) | |
470cd9e9 | 9361 | then |
bfae1846 | 9362 | null; |
470cd9e9 | 9363 | else |
bfae1846 AC |
9364 | Error_Pragma_Arg |
9365 | ("controlling formal must be of synchronized " & | |
9366 | "tagged type", Arg1); | |
9367 | return; | |
470cd9e9 | 9368 | end if; |
bfae1846 AC |
9369 | |
9370 | -- Procedures declared inside a protected type must be accepted | |
9371 | ||
9372 | elsif Ekind (Proc_Id) = E_Procedure | |
9373 | and then Is_Protected_Type (Scope (Proc_Id)) | |
9374 | then | |
9375 | null; | |
9376 | ||
9377 | -- The first argument is not a primitive procedure | |
9378 | ||
9379 | else | |
9380 | Error_Pragma_Arg | |
9381 | ("pragma % must be applied to a primitive procedure", Arg1); | |
9382 | return; | |
470cd9e9 | 9383 | end if; |
bfae1846 | 9384 | |
2604ec03 AC |
9385 | -- Ada 2012 (AI05-0030): Cannot apply the implementation_kind |
9386 | -- By_Protected_Procedure to the primitive procedure of a task | |
9387 | -- interface. | |
bfae1846 AC |
9388 | |
9389 | if Chars (Arg2) = Name_By_Protected_Procedure | |
9390 | and then Is_Interface (Typ) | |
9391 | and then Is_Task_Interface (Typ) | |
9392 | then | |
9393 | Error_Pragma_Arg | |
9394 | ("implementation kind By_Protected_Procedure cannot be " & | |
9395 | "applied to a task interface primitive", Arg2); | |
9396 | return; | |
9397 | end if; | |
9398 | ||
9399 | Record_Rep_Item (Proc_Id, N); | |
9400 | end Implemented; | |
470cd9e9 | 9401 | |
094cefda | 9402 | ---------------------- |
c690a2ec | 9403 | -- Implicit_Packing -- |
094cefda | 9404 | ---------------------- |
c690a2ec RD |
9405 | |
9406 | -- pragma Implicit_Packing; | |
9407 | ||
9408 | when Pragma_Implicit_Packing => | |
9409 | GNAT_Pragma; | |
9410 | Check_Arg_Count (0); | |
9411 | Implicit_Packing := True; | |
9412 | ||
996ae0b0 RK |
9413 | ------------ |
9414 | -- Import -- | |
9415 | ------------ | |
9416 | ||
9417 | -- pragma Import ( | |
470cd9e9 RD |
9418 | -- [Convention =>] convention_IDENTIFIER, |
9419 | -- [Entity =>] local_NAME | |
996ae0b0 RK |
9420 | -- [, [External_Name =>] static_string_EXPRESSION ] |
9421 | -- [, [Link_Name =>] static_string_EXPRESSION ]); | |
9422 | ||
9423 | when Pragma_Import => | |
9424 | Check_Ada_83_Warning; | |
59e5fbe0 RD |
9425 | Check_Arg_Order |
9426 | ((Name_Convention, | |
9427 | Name_Entity, | |
9428 | Name_External_Name, | |
9429 | Name_Link_Name)); | |
996ae0b0 RK |
9430 | Check_At_Least_N_Arguments (2); |
9431 | Check_At_Most_N_Arguments (4); | |
9432 | Process_Import_Or_Interface; | |
9433 | ||
9434 | ---------------------- | |
9435 | -- Import_Exception -- | |
9436 | ---------------------- | |
9437 | ||
9438 | -- pragma Import_Exception ( | |
470cd9e9 RD |
9439 | -- [Internal =>] LOCAL_NAME |
9440 | -- [, [External =>] EXTERNAL_SYMBOL] | |
996ae0b0 RK |
9441 | -- [, [Form =>] Ada | VMS] |
9442 | -- [, [Code =>] static_integer_EXPRESSION]); | |
9443 | ||
9444 | when Pragma_Import_Exception => Import_Exception : declare | |
9445 | Args : Args_List (1 .. 4); | |
fbf5a39b | 9446 | Names : constant Name_List (1 .. 4) := ( |
996ae0b0 RK |
9447 | Name_Internal, |
9448 | Name_External, | |
9449 | Name_Form, | |
9450 | Name_Code); | |
9451 | ||
9452 | Internal : Node_Id renames Args (1); | |
9453 | External : Node_Id renames Args (2); | |
9454 | Form : Node_Id renames Args (3); | |
9455 | Code : Node_Id renames Args (4); | |
9456 | ||
9457 | begin | |
a30a01fe | 9458 | GNAT_Pragma; |
996ae0b0 RK |
9459 | Gather_Associations (Names, Args); |
9460 | ||
9461 | if Present (External) and then Present (Code) then | |
9462 | Error_Pragma | |
9463 | ("cannot give both External and Code options for pragma%"); | |
9464 | end if; | |
9465 | ||
9466 | Process_Extended_Import_Export_Exception_Pragma ( | |
9467 | Arg_Internal => Internal, | |
9468 | Arg_External => External, | |
9469 | Arg_Form => Form, | |
9470 | Arg_Code => Code); | |
9471 | ||
9472 | if not Is_VMS_Exception (Entity (Internal)) then | |
9473 | Set_Imported (Entity (Internal)); | |
9474 | end if; | |
996ae0b0 RK |
9475 | end Import_Exception; |
9476 | ||
9477 | --------------------- | |
9478 | -- Import_Function -- | |
9479 | --------------------- | |
9480 | ||
9481 | -- pragma Import_Function ( | |
9482 | -- [Internal =>] LOCAL_NAME, | |
9483 | -- [, [External =>] EXTERNAL_SYMBOL] | |
9484 | -- [, [Parameter_Types =>] (PARAMETER_TYPES)] | |
9485 | -- [, [Result_Type =>] SUBTYPE_MARK] | |
9486 | -- [, [Mechanism =>] MECHANISM] | |
9487 | -- [, [Result_Mechanism =>] MECHANISM_NAME] | |
9488 | -- [, [First_Optional_Parameter =>] IDENTIFIER]); | |
9489 | ||
fbf5a39b AC |
9490 | -- EXTERNAL_SYMBOL ::= |
9491 | -- IDENTIFIER | |
9492 | -- | static_string_EXPRESSION | |
9493 | ||
9494 | -- PARAMETER_TYPES ::= | |
9495 | -- null | |
9496 | -- | TYPE_DESIGNATOR @{, TYPE_DESIGNATOR@} | |
9497 | ||
9498 | -- TYPE_DESIGNATOR ::= | |
9499 | -- subtype_NAME | |
9500 | -- | subtype_Name ' Access | |
9501 | ||
9502 | -- MECHANISM ::= | |
9503 | -- MECHANISM_NAME | |
9504 | -- | (MECHANISM_ASSOCIATION @{, MECHANISM_ASSOCIATION@}) | |
9505 | ||
9506 | -- MECHANISM_ASSOCIATION ::= | |
9507 | -- [formal_parameter_NAME =>] MECHANISM_NAME | |
9508 | ||
9509 | -- MECHANISM_NAME ::= | |
9510 | -- Value | |
9511 | -- | Reference | |
9512 | -- | Descriptor [([Class =>] CLASS_NAME)] | |
9513 | ||
9514 | -- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca | |
9515 | ||
996ae0b0 RK |
9516 | when Pragma_Import_Function => Import_Function : declare |
9517 | Args : Args_List (1 .. 7); | |
fbf5a39b | 9518 | Names : constant Name_List (1 .. 7) := ( |
996ae0b0 RK |
9519 | Name_Internal, |
9520 | Name_External, | |
9521 | Name_Parameter_Types, | |
9522 | Name_Result_Type, | |
9523 | Name_Mechanism, | |
9524 | Name_Result_Mechanism, | |
9525 | Name_First_Optional_Parameter); | |
9526 | ||
9527 | Internal : Node_Id renames Args (1); | |
9528 | External : Node_Id renames Args (2); | |
9529 | Parameter_Types : Node_Id renames Args (3); | |
9530 | Result_Type : Node_Id renames Args (4); | |
9531 | Mechanism : Node_Id renames Args (5); | |
9532 | Result_Mechanism : Node_Id renames Args (6); | |
9533 | First_Optional_Parameter : Node_Id renames Args (7); | |
9534 | ||
9535 | begin | |
9536 | GNAT_Pragma; | |
9537 | Gather_Associations (Names, Args); | |
9538 | Process_Extended_Import_Export_Subprogram_Pragma ( | |
9539 | Arg_Internal => Internal, | |
9540 | Arg_External => External, | |
9541 | Arg_Parameter_Types => Parameter_Types, | |
9542 | Arg_Result_Type => Result_Type, | |
9543 | Arg_Mechanism => Mechanism, | |
9544 | Arg_Result_Mechanism => Result_Mechanism, | |
9545 | Arg_First_Optional_Parameter => First_Optional_Parameter); | |
9546 | end Import_Function; | |
9547 | ||
9548 | ------------------- | |
9549 | -- Import_Object -- | |
9550 | ------------------- | |
9551 | ||
9552 | -- pragma Import_Object ( | |
470cd9e9 | 9553 | -- [Internal =>] LOCAL_NAME |
996ae0b0 RK |
9554 | -- [, [External =>] EXTERNAL_SYMBOL] |
9555 | -- [, [Size =>] EXTERNAL_SYMBOL]); | |
9556 | ||
fbf5a39b AC |
9557 | -- EXTERNAL_SYMBOL ::= |
9558 | -- IDENTIFIER | |
9559 | -- | static_string_EXPRESSION | |
9560 | ||
996ae0b0 RK |
9561 | when Pragma_Import_Object => Import_Object : declare |
9562 | Args : Args_List (1 .. 3); | |
fbf5a39b | 9563 | Names : constant Name_List (1 .. 3) := ( |
996ae0b0 RK |
9564 | Name_Internal, |
9565 | Name_External, | |
9566 | Name_Size); | |
9567 | ||
9568 | Internal : Node_Id renames Args (1); | |
9569 | External : Node_Id renames Args (2); | |
9570 | Size : Node_Id renames Args (3); | |
9571 | ||
9572 | begin | |
9573 | GNAT_Pragma; | |
9574 | Gather_Associations (Names, Args); | |
9575 | Process_Extended_Import_Export_Object_Pragma ( | |
9576 | Arg_Internal => Internal, | |
9577 | Arg_External => External, | |
9578 | Arg_Size => Size); | |
9579 | end Import_Object; | |
9580 | ||
9581 | ---------------------- | |
9582 | -- Import_Procedure -- | |
9583 | ---------------------- | |
9584 | ||
9585 | -- pragma Import_Procedure ( | |
470cd9e9 | 9586 | -- [Internal =>] LOCAL_NAME |
996ae0b0 RK |
9587 | -- [, [External =>] EXTERNAL_SYMBOL] |
9588 | -- [, [Parameter_Types =>] (PARAMETER_TYPES)] | |
9589 | -- [, [Mechanism =>] MECHANISM] | |
9590 | -- [, [First_Optional_Parameter =>] IDENTIFIER]); | |
9591 | ||
fbf5a39b AC |
9592 | -- EXTERNAL_SYMBOL ::= |
9593 | -- IDENTIFIER | |
9594 | -- | static_string_EXPRESSION | |
9595 | ||
9596 | -- PARAMETER_TYPES ::= | |
9597 | -- null | |
9598 | -- | TYPE_DESIGNATOR @{, TYPE_DESIGNATOR@} | |
9599 | ||
9600 | -- TYPE_DESIGNATOR ::= | |
9601 | -- subtype_NAME | |
9602 | -- | subtype_Name ' Access | |
9603 | ||
9604 | -- MECHANISM ::= | |
9605 | -- MECHANISM_NAME | |
9606 | -- | (MECHANISM_ASSOCIATION @{, MECHANISM_ASSOCIATION@}) | |
9607 | ||
9608 | -- MECHANISM_ASSOCIATION ::= | |
9609 | -- [formal_parameter_NAME =>] MECHANISM_NAME | |
9610 | ||
9611 | -- MECHANISM_NAME ::= | |
9612 | -- Value | |
9613 | -- | Reference | |
9614 | -- | Descriptor [([Class =>] CLASS_NAME)] | |
9615 | ||
9616 | -- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca | |
9617 | ||
996ae0b0 RK |
9618 | when Pragma_Import_Procedure => Import_Procedure : declare |
9619 | Args : Args_List (1 .. 5); | |
fbf5a39b | 9620 | Names : constant Name_List (1 .. 5) := ( |
996ae0b0 RK |
9621 | Name_Internal, |
9622 | Name_External, | |
9623 | Name_Parameter_Types, | |
9624 | Name_Mechanism, | |
9625 | Name_First_Optional_Parameter); | |
9626 | ||
9627 | Internal : Node_Id renames Args (1); | |
9628 | External : Node_Id renames Args (2); | |
9629 | Parameter_Types : Node_Id renames Args (3); | |
9630 | Mechanism : Node_Id renames Args (4); | |
9631 | First_Optional_Parameter : Node_Id renames Args (5); | |
9632 | ||
9633 | begin | |
9634 | GNAT_Pragma; | |
9635 | Gather_Associations (Names, Args); | |
9636 | Process_Extended_Import_Export_Subprogram_Pragma ( | |
9637 | Arg_Internal => Internal, | |
9638 | Arg_External => External, | |
9639 | Arg_Parameter_Types => Parameter_Types, | |
9640 | Arg_Mechanism => Mechanism, | |
9641 | Arg_First_Optional_Parameter => First_Optional_Parameter); | |
9642 | end Import_Procedure; | |
9643 | ||
9644 | ----------------------------- | |
9645 | -- Import_Valued_Procedure -- | |
9646 | ----------------------------- | |
9647 | ||
9648 | -- pragma Import_Valued_Procedure ( | |
470cd9e9 | 9649 | -- [Internal =>] LOCAL_NAME |
996ae0b0 RK |
9650 | -- [, [External =>] EXTERNAL_SYMBOL] |
9651 | -- [, [Parameter_Types =>] (PARAMETER_TYPES)] | |
9652 | -- [, [Mechanism =>] MECHANISM] | |
9653 | -- [, [First_Optional_Parameter =>] IDENTIFIER]); | |
9654 | ||
fbf5a39b AC |
9655 | -- EXTERNAL_SYMBOL ::= |
9656 | -- IDENTIFIER | |
9657 | -- | static_string_EXPRESSION | |
9658 | ||
9659 | -- PARAMETER_TYPES ::= | |
9660 | -- null | |
9661 | -- | TYPE_DESIGNATOR @{, TYPE_DESIGNATOR@} | |
9662 | ||
9663 | -- TYPE_DESIGNATOR ::= | |
9664 | -- subtype_NAME | |
9665 | -- | subtype_Name ' Access | |
9666 | ||
9667 | -- MECHANISM ::= | |
9668 | -- MECHANISM_NAME | |
9669 | -- | (MECHANISM_ASSOCIATION @{, MECHANISM_ASSOCIATION@}) | |
9670 | ||
9671 | -- MECHANISM_ASSOCIATION ::= | |
9672 | -- [formal_parameter_NAME =>] MECHANISM_NAME | |
9673 | ||
9674 | -- MECHANISM_NAME ::= | |
9675 | -- Value | |
9676 | -- | Reference | |
9677 | -- | Descriptor [([Class =>] CLASS_NAME)] | |
9678 | ||
9679 | -- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca | |
9680 | ||
996ae0b0 RK |
9681 | when Pragma_Import_Valued_Procedure => |
9682 | Import_Valued_Procedure : declare | |
9683 | Args : Args_List (1 .. 5); | |
fbf5a39b | 9684 | Names : constant Name_List (1 .. 5) := ( |
996ae0b0 RK |
9685 | Name_Internal, |
9686 | Name_External, | |
9687 | Name_Parameter_Types, | |
9688 | Name_Mechanism, | |
9689 | Name_First_Optional_Parameter); | |
9690 | ||
9691 | Internal : Node_Id renames Args (1); | |
9692 | External : Node_Id renames Args (2); | |
9693 | Parameter_Types : Node_Id renames Args (3); | |
9694 | Mechanism : Node_Id renames Args (4); | |
9695 | First_Optional_Parameter : Node_Id renames Args (5); | |
9696 | ||
9697 | begin | |
9698 | GNAT_Pragma; | |
9699 | Gather_Associations (Names, Args); | |
9700 | Process_Extended_Import_Export_Subprogram_Pragma ( | |
9701 | Arg_Internal => Internal, | |
9702 | Arg_External => External, | |
9703 | Arg_Parameter_Types => Parameter_Types, | |
9704 | Arg_Mechanism => Mechanism, | |
9705 | Arg_First_Optional_Parameter => First_Optional_Parameter); | |
9706 | end Import_Valued_Procedure; | |
9707 | ||
105b5e65 AC |
9708 | ----------------- |
9709 | -- Independent -- | |
9710 | ----------------- | |
9711 | ||
9712 | -- pragma Independent (LOCAL_NAME); | |
9713 | ||
9714 | when Pragma_Independent => Independent : declare | |
9715 | E_Id : Node_Id; | |
9716 | E : Entity_Id; | |
9717 | D : Node_Id; | |
9718 | K : Node_Kind; | |
9719 | ||
9720 | begin | |
9721 | Check_Ada_83_Warning; | |
9722 | Ada_2012_Pragma; | |
9723 | Check_No_Identifiers; | |
9724 | Check_Arg_Count (1); | |
9725 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 9726 | E_Id := Get_Pragma_Arg (Arg1); |
105b5e65 AC |
9727 | |
9728 | if Etype (E_Id) = Any_Type then | |
9729 | return; | |
9730 | end if; | |
9731 | ||
9732 | E := Entity (E_Id); | |
9733 | D := Declaration_Node (E); | |
9734 | K := Nkind (D); | |
9735 | ||
af31bffb AC |
9736 | -- Check duplicate before we chain ourselves! |
9737 | ||
9738 | Check_Duplicate_Pragma (E); | |
9739 | ||
9740 | -- Check appropriate entity | |
9741 | ||
105b5e65 AC |
9742 | if Is_Type (E) then |
9743 | if Rep_Item_Too_Early (E, N) | |
9744 | or else | |
9745 | Rep_Item_Too_Late (E, N) | |
9746 | then | |
9747 | return; | |
9748 | else | |
9749 | Check_First_Subtype (Arg1); | |
9750 | end if; | |
9751 | ||
9752 | elsif K = N_Object_Declaration | |
9753 | or else (K = N_Component_Declaration | |
9754 | and then Original_Record_Component (E) = E) | |
9755 | then | |
9756 | if Rep_Item_Too_Late (E, N) then | |
9757 | return; | |
9758 | end if; | |
9759 | ||
9760 | else | |
9761 | Error_Pragma_Arg | |
9762 | ("inappropriate entity for pragma%", Arg1); | |
9763 | end if; | |
9764 | ||
9765 | Independence_Checks.Append ((N, E)); | |
9766 | end Independent; | |
9767 | ||
9768 | ---------------------------- | |
9769 | -- Independent_Components -- | |
9770 | ---------------------------- | |
9771 | ||
9772 | -- pragma Atomic_Components (array_LOCAL_NAME); | |
9773 | ||
9774 | -- This processing is shared by Volatile_Components | |
9775 | ||
9776 | when Pragma_Independent_Components => Independent_Components : declare | |
9777 | E_Id : Node_Id; | |
9778 | E : Entity_Id; | |
9779 | D : Node_Id; | |
9780 | K : Node_Kind; | |
9781 | ||
9782 | begin | |
9783 | Check_Ada_83_Warning; | |
9784 | Ada_2012_Pragma; | |
9785 | Check_No_Identifiers; | |
9786 | Check_Arg_Count (1); | |
9787 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 9788 | E_Id := Get_Pragma_Arg (Arg1); |
105b5e65 AC |
9789 | |
9790 | if Etype (E_Id) = Any_Type then | |
9791 | return; | |
9792 | end if; | |
9793 | ||
9794 | E := Entity (E_Id); | |
9795 | ||
af31bffb AC |
9796 | -- Check duplicate before we chain ourselves! |
9797 | ||
9798 | Check_Duplicate_Pragma (E); | |
9799 | ||
9800 | -- Check appropriate entity | |
9801 | ||
105b5e65 AC |
9802 | if Rep_Item_Too_Early (E, N) |
9803 | or else | |
9804 | Rep_Item_Too_Late (E, N) | |
9805 | then | |
9806 | return; | |
9807 | end if; | |
9808 | ||
9809 | D := Declaration_Node (E); | |
9810 | K := Nkind (D); | |
9811 | ||
9812 | if (K = N_Full_Type_Declaration | |
9813 | and then (Is_Array_Type (E) or else Is_Record_Type (E))) | |
9814 | or else | |
9815 | ((Ekind (E) = E_Constant or else Ekind (E) = E_Variable) | |
9816 | and then Nkind (D) = N_Object_Declaration | |
9817 | and then Nkind (Object_Definition (D)) = | |
9818 | N_Constrained_Array_Definition) | |
9819 | then | |
9820 | Independence_Checks.Append ((N, E)); | |
9821 | ||
9822 | else | |
9823 | Error_Pragma_Arg ("inappropriate entity for pragma%", Arg1); | |
9824 | end if; | |
9825 | end Independent_Components; | |
9826 | ||
996ae0b0 RK |
9827 | ------------------------ |
9828 | -- Initialize_Scalars -- | |
9829 | ------------------------ | |
9830 | ||
9831 | -- pragma Initialize_Scalars; | |
9832 | ||
9833 | when Pragma_Initialize_Scalars => | |
9834 | GNAT_Pragma; | |
9835 | Check_Arg_Count (0); | |
9836 | Check_Valid_Configuration_Pragma; | |
fbf5a39b AC |
9837 | Check_Restriction (No_Initialize_Scalars, N); |
9838 | ||
406935b6 | 9839 | -- Initialize_Scalars creates false positives in CodePeer, and |
56812278 | 9840 | -- incorrect negative results in Alfa mode, so ignore this pragma |
406935b6 | 9841 | -- in these modes. |
5a989c6b AC |
9842 | |
9843 | if not Restriction_Active (No_Initialize_Scalars) | |
56812278 | 9844 | and then not (CodePeer_Mode or Alfa_Mode) |
5a989c6b | 9845 | then |
fbf5a39b AC |
9846 | Init_Or_Norm_Scalars := True; |
9847 | Initialize_Scalars := True; | |
9848 | end if; | |
996ae0b0 RK |
9849 | |
9850 | ------------ | |
9851 | -- Inline -- | |
9852 | ------------ | |
9853 | ||
9854 | -- pragma Inline ( NAME {, NAME} ); | |
9855 | ||
9856 | when Pragma_Inline => | |
9857 | ||
9858 | -- Pragma is active if inlining option is active | |
9859 | ||
c71c53a8 | 9860 | Process_Inline (Inline_Active); |
996ae0b0 RK |
9861 | |
9862 | ------------------- | |
9863 | -- Inline_Always -- | |
9864 | ------------------- | |
9865 | ||
9866 | -- pragma Inline_Always ( NAME {, NAME} ); | |
9867 | ||
9868 | when Pragma_Inline_Always => | |
a30a01fe | 9869 | GNAT_Pragma; |
3c1ecd7e | 9870 | |
56812278 | 9871 | -- Pragma always active unless in CodePeer or Alfa mode, since |
406935b6 | 9872 | -- this causes walk order issues. |
3c1ecd7e | 9873 | |
56812278 | 9874 | if not (CodePeer_Mode or Alfa_Mode) then |
3c1ecd7e AC |
9875 | Process_Inline (True); |
9876 | end if; | |
996ae0b0 RK |
9877 | |
9878 | -------------------- | |
9879 | -- Inline_Generic -- | |
9880 | -------------------- | |
9881 | ||
9882 | -- pragma Inline_Generic (NAME {, NAME}); | |
9883 | ||
9884 | when Pragma_Inline_Generic => | |
a30a01fe | 9885 | GNAT_Pragma; |
996ae0b0 RK |
9886 | Process_Generic_List; |
9887 | ||
9888 | ---------------------- | |
9889 | -- Inspection_Point -- | |
9890 | ---------------------- | |
9891 | ||
9892 | -- pragma Inspection_Point [(object_NAME {, object_NAME})]; | |
9893 | ||
9894 | when Pragma_Inspection_Point => Inspection_Point : declare | |
9895 | Arg : Node_Id; | |
9896 | Exp : Node_Id; | |
9897 | ||
9898 | begin | |
9899 | if Arg_Count > 0 then | |
9900 | Arg := Arg1; | |
9901 | loop | |
0f1a6a0b | 9902 | Exp := Get_Pragma_Arg (Arg); |
996ae0b0 RK |
9903 | Analyze (Exp); |
9904 | ||
9905 | if not Is_Entity_Name (Exp) | |
9906 | or else not Is_Object (Entity (Exp)) | |
9907 | then | |
9908 | Error_Pragma_Arg ("object name required", Arg); | |
9909 | end if; | |
9910 | ||
9911 | Next (Arg); | |
9912 | exit when No (Arg); | |
9913 | end loop; | |
9914 | end if; | |
9915 | end Inspection_Point; | |
9916 | ||
9917 | --------------- | |
9918 | -- Interface -- | |
9919 | --------------- | |
9920 | ||
9921 | -- pragma Interface ( | |
ac9e9918 RD |
9922 | -- [ Convention =>] convention_IDENTIFIER, |
9923 | -- [ Entity =>] local_NAME | |
9924 | -- [, [External_Name =>] static_string_EXPRESSION ] | |
9925 | -- [, [Link_Name =>] static_string_EXPRESSION ]); | |
996ae0b0 RK |
9926 | |
9927 | when Pragma_Interface => | |
9928 | GNAT_Pragma; | |
ac9e9918 RD |
9929 | Check_Arg_Order |
9930 | ((Name_Convention, | |
9931 | Name_Entity, | |
9932 | Name_External_Name, | |
9933 | Name_Link_Name)); | |
9934 | Check_At_Least_N_Arguments (2); | |
9935 | Check_At_Most_N_Arguments (4); | |
996ae0b0 RK |
9936 | Process_Import_Or_Interface; |
9937 | ||
b5c739f9 RD |
9938 | -- In Ada 2005, the permission to use Interface (a reserved word) |
9939 | -- as a pragma name is considered an obsolescent feature. | |
9940 | ||
9941 | if Ada_Version >= Ada_2005 then | |
9942 | Check_Restriction | |
9943 | (No_Obsolescent_Features, Pragma_Identifier (N)); | |
9944 | end if; | |
9945 | ||
996ae0b0 RK |
9946 | -------------------- |
9947 | -- Interface_Name -- | |
9948 | -------------------- | |
9949 | ||
9950 | -- pragma Interface_Name ( | |
9951 | -- [ Entity =>] local_NAME | |
9952 | -- [,[External_Name =>] static_string_EXPRESSION ] | |
9953 | -- [,[Link_Name =>] static_string_EXPRESSION ]); | |
9954 | ||
9955 | when Pragma_Interface_Name => Interface_Name : declare | |
9956 | Id : Node_Id; | |
9957 | Def_Id : Entity_Id; | |
9958 | Hom_Id : Entity_Id; | |
9959 | Found : Boolean; | |
9960 | ||
9961 | begin | |
9962 | GNAT_Pragma; | |
59e5fbe0 RD |
9963 | Check_Arg_Order |
9964 | ((Name_Entity, Name_External_Name, Name_Link_Name)); | |
996ae0b0 RK |
9965 | Check_At_Least_N_Arguments (2); |
9966 | Check_At_Most_N_Arguments (3); | |
0f1a6a0b | 9967 | Id := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
9968 | Analyze (Id); |
9969 | ||
9970 | if not Is_Entity_Name (Id) then | |
9971 | Error_Pragma_Arg | |
9972 | ("first argument for pragma% must be entity name", Arg1); | |
9973 | elsif Etype (Id) = Any_Type then | |
9974 | return; | |
9975 | else | |
9976 | Def_Id := Entity (Id); | |
9977 | end if; | |
9978 | ||
21d27997 RD |
9979 | -- Special DEC-compatible processing for the object case, forces |
9980 | -- object to be imported. | |
996ae0b0 RK |
9981 | |
9982 | if Ekind (Def_Id) = E_Variable then | |
9983 | Kill_Size_Check_Code (Def_Id); | |
21d27997 | 9984 | Note_Possible_Modification (Id, Sure => False); |
996ae0b0 RK |
9985 | |
9986 | -- Initialization is not allowed for imported variable | |
9987 | ||
9988 | if Present (Expression (Parent (Def_Id))) | |
9989 | and then Comes_From_Source (Expression (Parent (Def_Id))) | |
9990 | then | |
9991 | Error_Msg_Sloc := Sloc (Def_Id); | |
9992 | Error_Pragma_Arg | |
9993 | ("no initialization allowed for declaration of& #", | |
9994 | Arg2); | |
9995 | ||
9996 | else | |
9997 | -- For compatibility, support VADS usage of providing both | |
9998 | -- pragmas Interface and Interface_Name to obtain the effect | |
9999 | -- of a single Import pragma. | |
10000 | ||
10001 | if Is_Imported (Def_Id) | |
10002 | and then Present (First_Rep_Item (Def_Id)) | |
10003 | and then Nkind (First_Rep_Item (Def_Id)) = N_Pragma | |
1b24ada5 RD |
10004 | and then |
10005 | Pragma_Name (First_Rep_Item (Def_Id)) = Name_Interface | |
996ae0b0 RK |
10006 | then |
10007 | null; | |
10008 | else | |
10009 | Set_Imported (Def_Id); | |
10010 | end if; | |
10011 | ||
10012 | Set_Is_Public (Def_Id); | |
10013 | Process_Interface_Name (Def_Id, Arg2, Arg3); | |
10014 | end if; | |
10015 | ||
10016 | -- Otherwise must be subprogram | |
10017 | ||
10018 | elsif not Is_Subprogram (Def_Id) then | |
10019 | Error_Pragma_Arg | |
10020 | ("argument of pragma% is not subprogram", Arg1); | |
10021 | ||
10022 | else | |
10023 | Check_At_Most_N_Arguments (3); | |
10024 | Hom_Id := Def_Id; | |
10025 | Found := False; | |
10026 | ||
10027 | -- Loop through homonyms | |
10028 | ||
10029 | loop | |
10030 | Def_Id := Get_Base_Subprogram (Hom_Id); | |
10031 | ||
10032 | if Is_Imported (Def_Id) then | |
10033 | Process_Interface_Name (Def_Id, Arg2, Arg3); | |
10034 | Found := True; | |
10035 | end if; | |
10036 | ||
0f1a6a0b | 10037 | exit when From_Aspect_Specification (N); |
996ae0b0 RK |
10038 | Hom_Id := Homonym (Hom_Id); |
10039 | ||
10040 | exit when No (Hom_Id) | |
10041 | or else Scope (Hom_Id) /= Current_Scope; | |
10042 | end loop; | |
10043 | ||
10044 | if not Found then | |
10045 | Error_Pragma_Arg | |
10046 | ("argument of pragma% is not imported subprogram", | |
10047 | Arg1); | |
10048 | end if; | |
10049 | end if; | |
10050 | end Interface_Name; | |
10051 | ||
10052 | ----------------------- | |
10053 | -- Interrupt_Handler -- | |
10054 | ----------------------- | |
10055 | ||
10056 | -- pragma Interrupt_Handler (handler_NAME); | |
10057 | ||
10058 | when Pragma_Interrupt_Handler => | |
10059 | Check_Ada_83_Warning; | |
10060 | Check_Arg_Count (1); | |
10061 | Check_No_Identifiers; | |
fbf5a39b AC |
10062 | |
10063 | if No_Run_Time_Mode then | |
10064 | Error_Msg_CRT ("Interrupt_Handler pragma", N); | |
10065 | else | |
10066 | Check_Interrupt_Or_Attach_Handler; | |
10067 | Process_Interrupt_Or_Attach_Handler; | |
10068 | end if; | |
996ae0b0 RK |
10069 | |
10070 | ------------------------ | |
10071 | -- Interrupt_Priority -- | |
10072 | ------------------------ | |
10073 | ||
10074 | -- pragma Interrupt_Priority [(EXPRESSION)]; | |
10075 | ||
10076 | when Pragma_Interrupt_Priority => Interrupt_Priority : declare | |
10077 | P : constant Node_Id := Parent (N); | |
10078 | Arg : Node_Id; | |
10079 | ||
10080 | begin | |
10081 | Check_Ada_83_Warning; | |
10082 | ||
10083 | if Arg_Count /= 0 then | |
0f1a6a0b | 10084 | Arg := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
10085 | Check_Arg_Count (1); |
10086 | Check_No_Identifiers; | |
10087 | ||
fbf5a39b AC |
10088 | -- The expression must be analyzed in the special manner |
10089 | -- described in "Handling of Default and Per-Object | |
10090 | -- Expressions" in sem.ads. | |
996ae0b0 | 10091 | |
21d27997 | 10092 | Preanalyze_Spec_Expression (Arg, RTE (RE_Interrupt_Priority)); |
996ae0b0 RK |
10093 | end if; |
10094 | ||
d7ba4df4 | 10095 | if not Nkind_In (P, N_Task_Definition, N_Protected_Definition) then |
996ae0b0 RK |
10096 | Pragma_Misplaced; |
10097 | return; | |
10098 | ||
c775c209 | 10099 | elsif Has_Pragma_Priority (P) then |
996ae0b0 RK |
10100 | Error_Pragma ("duplicate pragma% not allowed"); |
10101 | ||
10102 | else | |
c775c209 | 10103 | Set_Has_Pragma_Priority (P, True); |
996ae0b0 RK |
10104 | Record_Rep_Item (Defining_Identifier (Parent (P)), N); |
10105 | end if; | |
10106 | end Interrupt_Priority; | |
10107 | ||
fbf5a39b AC |
10108 | --------------------- |
10109 | -- Interrupt_State -- | |
10110 | --------------------- | |
10111 | ||
10112 | -- pragma Interrupt_State ( | |
10113 | -- [Name =>] INTERRUPT_ID, | |
10114 | -- [State =>] INTERRUPT_STATE); | |
10115 | ||
10116 | -- INTERRUPT_ID => IDENTIFIER | static_integer_EXPRESSION | |
10117 | -- INTERRUPT_STATE => System | Runtime | User | |
10118 | ||
b3b9865d AC |
10119 | -- Note: if the interrupt id is given as an identifier, then it must |
10120 | -- be one of the identifiers in Ada.Interrupts.Names. Otherwise it is | |
10121 | -- given as a static integer expression which must be in the range of | |
10122 | -- Ada.Interrupts.Interrupt_ID. | |
fbf5a39b AC |
10123 | |
10124 | when Pragma_Interrupt_State => Interrupt_State : declare | |
10125 | ||
10126 | Int_Id : constant Entity_Id := RTE (RE_Interrupt_ID); | |
10127 | -- This is the entity Ada.Interrupts.Interrupt_ID; | |
10128 | ||
10129 | State_Type : Character; | |
10130 | -- Set to 's'/'r'/'u' for System/Runtime/User | |
10131 | ||
10132 | IST_Num : Pos; | |
10133 | -- Index to entry in Interrupt_States table | |
10134 | ||
10135 | Int_Val : Uint; | |
10136 | -- Value of interrupt | |
10137 | ||
10138 | Arg1X : constant Node_Id := Get_Pragma_Arg (Arg1); | |
10139 | -- The first argument to the pragma | |
10140 | ||
10141 | Int_Ent : Entity_Id; | |
10142 | -- Interrupt entity in Ada.Interrupts.Names | |
10143 | ||
10144 | begin | |
10145 | GNAT_Pragma; | |
59e5fbe0 | 10146 | Check_Arg_Order ((Name_Name, Name_State)); |
fbf5a39b AC |
10147 | Check_Arg_Count (2); |
10148 | ||
10149 | Check_Optional_Identifier (Arg1, Name_Name); | |
59e5fbe0 | 10150 | Check_Optional_Identifier (Arg2, Name_State); |
fbf5a39b AC |
10151 | Check_Arg_Is_Identifier (Arg2); |
10152 | ||
10153 | -- First argument is identifier | |
10154 | ||
10155 | if Nkind (Arg1X) = N_Identifier then | |
10156 | ||
10157 | -- Search list of names in Ada.Interrupts.Names | |
10158 | ||
10159 | Int_Ent := First_Entity (RTE (RE_Names)); | |
10160 | loop | |
10161 | if No (Int_Ent) then | |
10162 | Error_Pragma_Arg ("invalid interrupt name", Arg1); | |
10163 | ||
10164 | elsif Chars (Int_Ent) = Chars (Arg1X) then | |
10165 | Int_Val := Expr_Value (Constant_Value (Int_Ent)); | |
10166 | exit; | |
10167 | end if; | |
10168 | ||
10169 | Next_Entity (Int_Ent); | |
10170 | end loop; | |
10171 | ||
b3b9865d AC |
10172 | -- First argument is not an identifier, so it must be a static |
10173 | -- expression of type Ada.Interrupts.Interrupt_ID. | |
fbf5a39b AC |
10174 | |
10175 | else | |
10176 | Check_Arg_Is_Static_Expression (Arg1, Any_Integer); | |
10177 | Int_Val := Expr_Value (Arg1X); | |
10178 | ||
10179 | if Int_Val < Expr_Value (Type_Low_Bound (Int_Id)) | |
10180 | or else | |
10181 | Int_Val > Expr_Value (Type_High_Bound (Int_Id)) | |
10182 | then | |
10183 | Error_Pragma_Arg | |
10184 | ("value not in range of type " & | |
10185 | """Ada.Interrupts.Interrupt_'I'D""", Arg1); | |
10186 | end if; | |
10187 | end if; | |
10188 | ||
10189 | -- Check OK state | |
10190 | ||
10191 | case Chars (Get_Pragma_Arg (Arg2)) is | |
10192 | when Name_Runtime => State_Type := 'r'; | |
10193 | when Name_System => State_Type := 's'; | |
10194 | when Name_User => State_Type := 'u'; | |
10195 | ||
10196 | when others => | |
10197 | Error_Pragma_Arg ("invalid interrupt state", Arg2); | |
10198 | end case; | |
10199 | ||
10200 | -- Check if entry is already stored | |
10201 | ||
10202 | IST_Num := Interrupt_States.First; | |
10203 | loop | |
10204 | -- If entry not found, add it | |
10205 | ||
10206 | if IST_Num > Interrupt_States.Last then | |
10207 | Interrupt_States.Append | |
10208 | ((Interrupt_Number => UI_To_Int (Int_Val), | |
10209 | Interrupt_State => State_Type, | |
10210 | Pragma_Loc => Loc)); | |
10211 | exit; | |
10212 | ||
10213 | -- Case of entry for the same entry | |
10214 | ||
10215 | elsif Int_Val = Interrupt_States.Table (IST_Num). | |
10216 | Interrupt_Number | |
10217 | then | |
10218 | -- If state matches, done, no need to make redundant entry | |
10219 | ||
10220 | exit when | |
10221 | State_Type = Interrupt_States.Table (IST_Num). | |
10222 | Interrupt_State; | |
10223 | ||
10224 | -- Otherwise if state does not match, error | |
10225 | ||
10226 | Error_Msg_Sloc := | |
10227 | Interrupt_States.Table (IST_Num).Pragma_Loc; | |
10228 | Error_Pragma_Arg | |
2fa9443e | 10229 | ("state conflicts with that given #", Arg2); |
fbf5a39b AC |
10230 | exit; |
10231 | end if; | |
10232 | ||
10233 | IST_Num := IST_Num + 1; | |
10234 | end loop; | |
10235 | end Interrupt_State; | |
10236 | ||
e606088a AC |
10237 | --------------- |
10238 | -- Invariant -- | |
10239 | --------------- | |
10240 | ||
10241 | -- pragma Invariant | |
10242 | -- ([Entity =>] type_LOCAL_NAME, | |
10243 | -- [Check =>] EXPRESSION | |
10244 | -- [,[Message =>] String_Expression]); | |
10245 | ||
10246 | when Pragma_Invariant => Invariant : declare | |
10247 | Type_Id : Node_Id; | |
10248 | Typ : Entity_Id; | |
10249 | ||
10250 | Discard : Boolean; | |
10251 | pragma Unreferenced (Discard); | |
10252 | ||
10253 | begin | |
10254 | GNAT_Pragma; | |
10255 | Check_At_Least_N_Arguments (2); | |
10256 | Check_At_Most_N_Arguments (3); | |
10257 | Check_Optional_Identifier (Arg1, Name_Entity); | |
10258 | Check_Optional_Identifier (Arg2, Name_Check); | |
10259 | ||
10260 | if Arg_Count = 3 then | |
10261 | Check_Optional_Identifier (Arg3, Name_Message); | |
10262 | Check_Arg_Is_Static_Expression (Arg3, Standard_String); | |
10263 | end if; | |
10264 | ||
10265 | Check_Arg_Is_Local_Name (Arg1); | |
10266 | ||
10267 | Type_Id := Get_Pragma_Arg (Arg1); | |
10268 | Find_Type (Type_Id); | |
10269 | Typ := Entity (Type_Id); | |
10270 | ||
10271 | if Typ = Any_Type then | |
10272 | return; | |
10273 | ||
516785cc AC |
10274 | -- An invariant must apply to a private type, or appear in the |
10275 | -- private part of a package spec and apply to a completion. | |
10276 | ||
10277 | elsif Ekind_In (Typ, E_Private_Type, | |
df177175 RD |
10278 | E_Record_Type_With_Private, |
10279 | E_Limited_Private_Type) | |
e606088a | 10280 | then |
516785cc AC |
10281 | null; |
10282 | ||
10283 | elsif In_Private_Part (Current_Scope) | |
10284 | and then Has_Private_Declaration (Typ) | |
10285 | then | |
10286 | null; | |
10287 | ||
f4f92d9d | 10288 | elsif In_Private_Part (Current_Scope) then |
ba759acd | 10289 | Error_Pragma_Arg |
f4f92d9d | 10290 | ("pragma% only allowed for private type " & |
ba759acd | 10291 | "declared in visible part", Arg1); |
f4f92d9d | 10292 | |
516785cc | 10293 | else |
ba759acd AC |
10294 | Error_Pragma_Arg |
10295 | ("pragma% only allowed for private type", Arg1); | |
e606088a AC |
10296 | end if; |
10297 | ||
10298 | -- Note that the type has at least one invariant, and also that | |
10299 | -- it has inheritable invariants if we have Invariant'Class. | |
10300 | ||
10301 | Set_Has_Invariants (Typ); | |
10302 | ||
10303 | if Class_Present (N) then | |
10304 | Set_Has_Inheritable_Invariants (Typ); | |
10305 | end if; | |
10306 | ||
10307 | -- The remaining processing is simply to link the pragma on to | |
10308 | -- the rep item chain, for processing when the type is frozen. | |
10309 | -- This is accomplished by a call to Rep_Item_Too_Late. | |
10310 | ||
10311 | Discard := Rep_Item_Too_Late (Typ, N, FOnly => True); | |
10312 | end Invariant; | |
10313 | ||
996ae0b0 RK |
10314 | ---------------------- |
10315 | -- Java_Constructor -- | |
10316 | ---------------------- | |
10317 | ||
10318 | -- pragma Java_Constructor ([Entity =>] LOCAL_NAME); | |
10319 | ||
c690a2ec RD |
10320 | -- Also handles pragma CIL_Constructor |
10321 | ||
2fa9443e ES |
10322 | when Pragma_CIL_Constructor | Pragma_Java_Constructor => |
10323 | Java_Constructor : declare | |
0b89eea8 AC |
10324 | Convention : Convention_Id; |
10325 | Def_Id : Entity_Id; | |
10326 | Hom_Id : Entity_Id; | |
10327 | Id : Entity_Id; | |
10328 | This_Formal : Entity_Id; | |
996ae0b0 RK |
10329 | |
10330 | begin | |
10331 | GNAT_Pragma; | |
10332 | Check_Arg_Count (1); | |
10333 | Check_Optional_Identifier (Arg1, Name_Entity); | |
10334 | Check_Arg_Is_Local_Name (Arg1); | |
10335 | ||
0f1a6a0b | 10336 | Id := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
10337 | Find_Program_Unit_Name (Id); |
10338 | ||
10339 | -- If we did not find the name, we are done | |
10340 | ||
10341 | if Etype (Id) = Any_Type then | |
10342 | return; | |
10343 | end if; | |
10344 | ||
bcae2eaa JM |
10345 | -- Check wrong use of pragma in wrong VM target |
10346 | ||
10347 | if VM_Target = No_VM then | |
10348 | return; | |
10349 | ||
10350 | elsif VM_Target = CLI_Target | |
10351 | and then Prag_Id = Pragma_Java_Constructor | |
10352 | then | |
10353 | Error_Pragma ("must use pragma 'C'I'L_'Constructor"); | |
10354 | ||
10355 | elsif VM_Target = JVM_Target | |
10356 | and then Prag_Id = Pragma_CIL_Constructor | |
10357 | then | |
10358 | Error_Pragma ("must use pragma 'Java_'Constructor"); | |
10359 | end if; | |
10360 | ||
2fa9443e ES |
10361 | case Prag_Id is |
10362 | when Pragma_CIL_Constructor => Convention := Convention_CIL; | |
10363 | when Pragma_Java_Constructor => Convention := Convention_Java; | |
10364 | when others => null; | |
10365 | end case; | |
10366 | ||
996ae0b0 RK |
10367 | Hom_Id := Entity (Id); |
10368 | ||
10369 | -- Loop through homonyms | |
10370 | ||
10371 | loop | |
10372 | Def_Id := Get_Base_Subprogram (Hom_Id); | |
10373 | ||
bcae2eaa | 10374 | -- The constructor is required to be a function |
996ae0b0 | 10375 | |
bcae2eaa JM |
10376 | if Ekind (Def_Id) /= E_Function then |
10377 | if VM_Target = JVM_Target then | |
2fa9443e ES |
10378 | Error_Pragma_Arg |
10379 | ("pragma% requires function returning a " & | |
bcae2eaa | 10380 | "'Java access type", Def_Id); |
2fa9443e | 10381 | else |
2fa9443e ES |
10382 | Error_Pragma_Arg |
10383 | ("pragma% requires function returning a " & | |
bcae2eaa | 10384 | "'C'I'L access type", Def_Id); |
2fa9443e | 10385 | end if; |
996ae0b0 RK |
10386 | end if; |
10387 | ||
bcae2eaa JM |
10388 | -- Check arguments: For tagged type the first formal must be |
10389 | -- named "this" and its type must be a named access type | |
10390 | -- designating a class-wide tagged type that has convention | |
10391 | -- CIL/Java. The first formal must also have a null default | |
10392 | -- value. For example: | |
10393 | ||
10394 | -- type Typ is tagged ... | |
10395 | -- type Ref is access all Typ; | |
10396 | -- pragma Convention (CIL, Typ); | |
10397 | ||
10398 | -- function New_Typ (This : Ref) return Ref; | |
10399 | -- function New_Typ (This : Ref; I : Integer) return Ref; | |
10400 | -- pragma Cil_Constructor (New_Typ); | |
10401 | ||
10402 | -- Reason: The first formal must NOT be a primitive of the | |
10403 | -- tagged type. | |
10404 | ||
10405 | -- This rule also applies to constructors of delegates used | |
10406 | -- to interface with standard target libraries. For example: | |
10407 | ||
10408 | -- type Delegate is access procedure ... | |
10409 | -- pragma Import (CIL, Delegate, ...); | |
10410 | ||
10411 | -- function new_Delegate | |
10412 | -- (This : Delegate := null; ... ) return Delegate; | |
10413 | ||
10414 | -- For value-types this rule does not apply. | |
10415 | ||
10416 | if not Is_Value_Type (Etype (Def_Id)) then | |
10417 | if No (First_Formal (Def_Id)) then | |
10418 | Error_Msg_Name_1 := Pname; | |
0b89eea8 AC |
10419 | Error_Msg_N ("% function must have parameters", Def_Id); |
10420 | return; | |
10421 | end if; | |
10422 | ||
10423 | -- In the JRE library we have several occurrences in which | |
10424 | -- the "this" parameter is not the first formal. | |
bcae2eaa | 10425 | |
0b89eea8 AC |
10426 | This_Formal := First_Formal (Def_Id); |
10427 | ||
10428 | -- In the JRE library we have several occurrences in which | |
10429 | -- the "this" parameter is not the first formal. Search for | |
10430 | -- it. | |
10431 | ||
10432 | if VM_Target = JVM_Target then | |
10433 | while Present (This_Formal) | |
10434 | and then Get_Name_String (Chars (This_Formal)) /= "this" | |
10435 | loop | |
10436 | Next_Formal (This_Formal); | |
10437 | end loop; | |
10438 | ||
10439 | if No (This_Formal) then | |
10440 | This_Formal := First_Formal (Def_Id); | |
10441 | end if; | |
10442 | end if; | |
10443 | ||
10444 | -- Warning: The first parameter should be named "this". | |
10445 | -- We temporarily allow it because we have the following | |
10446 | -- case in the Java runtime (file s-osinte.ads) ??? | |
10447 | ||
10448 | -- function new_Thread | |
10449 | -- (Self_Id : System.Address) return Thread_Id; | |
10450 | -- pragma Java_Constructor (new_Thread); | |
10451 | ||
10452 | if VM_Target = JVM_Target | |
10453 | and then Get_Name_String (Chars (First_Formal (Def_Id))) | |
10454 | = "self_id" | |
10455 | and then Etype (First_Formal (Def_Id)) = RTE (RE_Address) | |
bcae2eaa | 10456 | then |
0b89eea8 AC |
10457 | null; |
10458 | ||
10459 | elsif Get_Name_String (Chars (This_Formal)) /= "this" then | |
bcae2eaa JM |
10460 | Error_Msg_Name_1 := Pname; |
10461 | Error_Msg_N | |
10462 | ("first formal of % function must be named `this`", | |
0b89eea8 | 10463 | Parent (This_Formal)); |
bcae2eaa | 10464 | |
0b89eea8 | 10465 | elsif not Is_Access_Type (Etype (This_Formal)) then |
bd622b64 AC |
10466 | Error_Msg_Name_1 := Pname; |
10467 | Error_Msg_N | |
10468 | ("first formal of % function must be an access type", | |
0b89eea8 | 10469 | Parameter_Type (Parent (This_Formal))); |
bd622b64 AC |
10470 | |
10471 | -- For delegates the type of the first formal must be a | |
10472 | -- named access-to-subprogram type (see previous example) | |
10473 | ||
10474 | elsif Ekind (Etype (Def_Id)) = E_Access_Subprogram_Type | |
0b89eea8 | 10475 | and then Ekind (Etype (This_Formal)) |
bd622b64 AC |
10476 | /= E_Access_Subprogram_Type |
10477 | then | |
10478 | Error_Msg_Name_1 := Pname; | |
10479 | Error_Msg_N | |
10480 | ("first formal of % function must be a named access" & | |
10481 | " to subprogram type", | |
0b89eea8 | 10482 | Parameter_Type (Parent (This_Formal))); |
bd622b64 | 10483 | |
bcae2eaa JM |
10484 | -- Warning: We should reject anonymous access types because |
10485 | -- the constructor must not be handled as a primitive of the | |
10486 | -- tagged type. We temporarily allow it because this profile | |
10487 | -- is currently generated by cil2ada??? | |
10488 | ||
bd622b64 | 10489 | elsif Ekind (Etype (Def_Id)) /= E_Access_Subprogram_Type |
0b89eea8 AC |
10490 | and then not Ekind_In (Etype (This_Formal), |
10491 | E_Access_Type, | |
10492 | E_General_Access_Type, | |
10493 | E_Anonymous_Access_Type) | |
bcae2eaa JM |
10494 | then |
10495 | Error_Msg_Name_1 := Pname; | |
10496 | Error_Msg_N | |
10497 | ("first formal of % function must be a named access" & | |
10498 | " type", | |
0b89eea8 | 10499 | Parameter_Type (Parent (This_Formal))); |
bcae2eaa JM |
10500 | |
10501 | elsif Atree.Convention | |
0b89eea8 | 10502 | (Designated_Type (Etype (This_Formal))) /= Convention |
bcae2eaa JM |
10503 | then |
10504 | Error_Msg_Name_1 := Pname; | |
10505 | ||
10506 | if Convention = Convention_Java then | |
10507 | Error_Msg_N | |
10508 | ("pragma% requires convention 'Cil in designated" & | |
10509 | " type", | |
0b89eea8 | 10510 | Parameter_Type (Parent (This_Formal))); |
bcae2eaa JM |
10511 | else |
10512 | Error_Msg_N | |
10513 | ("pragma% requires convention 'Java in designated" & | |
10514 | " type", | |
0b89eea8 | 10515 | Parameter_Type (Parent (This_Formal))); |
bcae2eaa JM |
10516 | end if; |
10517 | ||
0b89eea8 AC |
10518 | elsif No (Expression (Parent (This_Formal))) |
10519 | or else Nkind (Expression (Parent (This_Formal))) /= N_Null | |
bcae2eaa JM |
10520 | then |
10521 | Error_Msg_Name_1 := Pname; | |
10522 | Error_Msg_N | |
10523 | ("pragma% requires first formal with default `null`", | |
0b89eea8 | 10524 | Parameter_Type (Parent (This_Formal))); |
bcae2eaa JM |
10525 | end if; |
10526 | end if; | |
10527 | ||
10528 | -- Check result type: the constructor must be a function | |
10529 | -- returning: | |
10530 | -- * a value type (only allowed in the CIL compiler) | |
10531 | -- * an access-to-subprogram type with convention Java/CIL | |
10532 | -- * an access-type designating a type that has convention | |
10533 | -- Java/CIL. | |
10534 | ||
10535 | if Is_Value_Type (Etype (Def_Id)) then | |
10536 | null; | |
10537 | ||
10538 | -- Access-to-subprogram type with convention Java/CIL | |
10539 | ||
10540 | elsif Ekind (Etype (Def_Id)) = E_Access_Subprogram_Type then | |
10541 | if Atree.Convention (Etype (Def_Id)) /= Convention then | |
10542 | if Convention = Convention_Java then | |
10543 | Error_Pragma_Arg | |
10544 | ("pragma% requires function returning a " & | |
10545 | "'Java access type", Arg1); | |
10546 | else | |
10547 | pragma Assert (Convention = Convention_CIL); | |
10548 | Error_Pragma_Arg | |
10549 | ("pragma% requires function returning a " & | |
10550 | "'C'I'L access type", Arg1); | |
10551 | end if; | |
10552 | end if; | |
10553 | ||
10554 | elsif Ekind (Etype (Def_Id)) in Access_Kind then | |
10555 | if not Ekind_In (Etype (Def_Id), E_Access_Type, | |
10556 | E_General_Access_Type) | |
10557 | or else | |
10558 | Atree.Convention | |
10559 | (Designated_Type (Etype (Def_Id))) /= Convention | |
10560 | then | |
10561 | Error_Msg_Name_1 := Pname; | |
10562 | ||
10563 | if Convention = Convention_Java then | |
10564 | Error_Pragma_Arg | |
10565 | ("pragma% requires function returning a named" & | |
10566 | "'Java access type", Arg1); | |
10567 | else | |
10568 | Error_Pragma_Arg | |
10569 | ("pragma% requires function returning a named" & | |
10570 | "'C'I'L access type", Arg1); | |
10571 | end if; | |
10572 | end if; | |
10573 | end if; | |
10574 | ||
10575 | Set_Is_Constructor (Def_Id); | |
10576 | Set_Convention (Def_Id, Convention); | |
10577 | Set_Is_Imported (Def_Id); | |
10578 | ||
0f1a6a0b | 10579 | exit when From_Aspect_Specification (N); |
996ae0b0 RK |
10580 | Hom_Id := Homonym (Hom_Id); |
10581 | ||
10582 | exit when No (Hom_Id) or else Scope (Hom_Id) /= Current_Scope; | |
10583 | end loop; | |
10584 | end Java_Constructor; | |
10585 | ||
10586 | ---------------------- | |
10587 | -- Java_Interface -- | |
10588 | ---------------------- | |
10589 | ||
10590 | -- pragma Java_Interface ([Entity =>] LOCAL_NAME); | |
10591 | ||
10592 | when Pragma_Java_Interface => Java_Interface : declare | |
10593 | Arg : Node_Id; | |
10594 | Typ : Entity_Id; | |
10595 | ||
10596 | begin | |
10597 | GNAT_Pragma; | |
10598 | Check_Arg_Count (1); | |
10599 | Check_Optional_Identifier (Arg1, Name_Entity); | |
10600 | Check_Arg_Is_Local_Name (Arg1); | |
10601 | ||
0f1a6a0b | 10602 | Arg := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
10603 | Analyze (Arg); |
10604 | ||
10605 | if Etype (Arg) = Any_Type then | |
10606 | return; | |
10607 | end if; | |
10608 | ||
10609 | if not Is_Entity_Name (Arg) | |
10610 | or else not Is_Type (Entity (Arg)) | |
10611 | then | |
10612 | Error_Pragma_Arg ("pragma% requires a type mark", Arg1); | |
10613 | end if; | |
10614 | ||
10615 | Typ := Underlying_Type (Entity (Arg)); | |
10616 | ||
b3b9865d AC |
10617 | -- For now simply check some of the semantic constraints on the |
10618 | -- type. This currently leaves out some restrictions on interface | |
10619 | -- types, namely that the parent type must be java.lang.Object.Typ | |
10620 | -- and that all primitives of the type should be declared | |
10621 | -- abstract. ??? | |
996ae0b0 | 10622 | |
874a0341 | 10623 | if not Is_Tagged_Type (Typ) or else not Is_Abstract_Type (Typ) then |
996ae0b0 RK |
10624 | Error_Pragma_Arg ("pragma% requires an abstract " |
10625 | & "tagged type", Arg1); | |
10626 | ||
10627 | elsif not Has_Discriminants (Typ) | |
10628 | or else Ekind (Etype (First_Discriminant (Typ))) | |
10629 | /= E_Anonymous_Access_Type | |
10630 | or else | |
10631 | not Is_Class_Wide_Type | |
10632 | (Designated_Type (Etype (First_Discriminant (Typ)))) | |
10633 | then | |
10634 | Error_Pragma_Arg | |
10635 | ("type must have a class-wide access discriminant", Arg1); | |
10636 | end if; | |
10637 | end Java_Interface; | |
10638 | ||
fbf5a39b AC |
10639 | ---------------- |
10640 | -- Keep_Names -- | |
10641 | ---------------- | |
10642 | ||
10643 | -- pragma Keep_Names ([On => ] local_NAME); | |
10644 | ||
10645 | when Pragma_Keep_Names => Keep_Names : declare | |
10646 | Arg : Node_Id; | |
10647 | ||
10648 | begin | |
10649 | GNAT_Pragma; | |
10650 | Check_Arg_Count (1); | |
10651 | Check_Optional_Identifier (Arg1, Name_On); | |
10652 | Check_Arg_Is_Local_Name (Arg1); | |
10653 | ||
0f1a6a0b | 10654 | Arg := Get_Pragma_Arg (Arg1); |
fbf5a39b AC |
10655 | Analyze (Arg); |
10656 | ||
10657 | if Etype (Arg) = Any_Type then | |
10658 | return; | |
10659 | end if; | |
10660 | ||
10661 | if not Is_Entity_Name (Arg) | |
10662 | or else Ekind (Entity (Arg)) /= E_Enumeration_Type | |
10663 | then | |
10664 | Error_Pragma_Arg | |
10665 | ("pragma% requires a local enumeration type", Arg1); | |
10666 | end if; | |
10667 | ||
10668 | Set_Discard_Names (Entity (Arg), False); | |
10669 | end Keep_Names; | |
10670 | ||
996ae0b0 RK |
10671 | ------------- |
10672 | -- License -- | |
10673 | ------------- | |
10674 | ||
59e5fbe0 | 10675 | -- pragma License (RESTRICTED | UNRESTRICTED | GPL | MODIFIED_GPL); |
996ae0b0 RK |
10676 | |
10677 | when Pragma_License => | |
10678 | GNAT_Pragma; | |
10679 | Check_Arg_Count (1); | |
10680 | Check_No_Identifiers; | |
10681 | Check_Valid_Configuration_Pragma; | |
10682 | Check_Arg_Is_Identifier (Arg1); | |
10683 | ||
10684 | declare | |
10685 | Sind : constant Source_File_Index := | |
10686 | Source_Index (Current_Sem_Unit); | |
10687 | ||
10688 | begin | |
10689 | case Chars (Get_Pragma_Arg (Arg1)) is | |
10690 | when Name_GPL => | |
10691 | Set_License (Sind, GPL); | |
10692 | ||
10693 | when Name_Modified_GPL => | |
10694 | Set_License (Sind, Modified_GPL); | |
10695 | ||
10696 | when Name_Restricted => | |
10697 | Set_License (Sind, Restricted); | |
10698 | ||
10699 | when Name_Unrestricted => | |
10700 | Set_License (Sind, Unrestricted); | |
10701 | ||
10702 | when others => | |
10703 | Error_Pragma_Arg ("invalid license name", Arg1); | |
10704 | end case; | |
10705 | end; | |
10706 | ||
10707 | --------------- | |
10708 | -- Link_With -- | |
10709 | --------------- | |
10710 | ||
10711 | -- pragma Link_With (string_EXPRESSION {, string_EXPRESSION}); | |
10712 | ||
10713 | when Pragma_Link_With => Link_With : declare | |
10714 | Arg : Node_Id; | |
10715 | ||
10716 | begin | |
10717 | GNAT_Pragma; | |
10718 | ||
10719 | if Operating_Mode = Generate_Code | |
10720 | and then In_Extended_Main_Source_Unit (N) | |
10721 | then | |
10722 | Check_At_Least_N_Arguments (1); | |
10723 | Check_No_Identifiers; | |
10724 | Check_Is_In_Decl_Part_Or_Package_Spec; | |
10725 | Check_Arg_Is_Static_Expression (Arg1, Standard_String); | |
10726 | Start_String; | |
10727 | ||
10728 | Arg := Arg1; | |
10729 | while Present (Arg) loop | |
10730 | Check_Arg_Is_Static_Expression (Arg, Standard_String); | |
10731 | ||
b3b9865d AC |
10732 | -- Store argument, converting sequences of spaces to a |
10733 | -- single null character (this is one of the differences | |
10734 | -- in processing between Link_With and Linker_Options). | |
996ae0b0 | 10735 | |
c690a2ec | 10736 | Arg_Store : declare |
996ae0b0 RK |
10737 | C : constant Char_Code := Get_Char_Code (' '); |
10738 | S : constant String_Id := | |
0f1a6a0b | 10739 | Strval (Expr_Value_S (Get_Pragma_Arg (Arg))); |
fbf5a39b | 10740 | L : constant Nat := String_Length (S); |
996ae0b0 | 10741 | F : Nat := 1; |
996ae0b0 RK |
10742 | |
10743 | procedure Skip_Spaces; | |
10744 | -- Advance F past any spaces | |
10745 | ||
c690a2ec RD |
10746 | ----------------- |
10747 | -- Skip_Spaces -- | |
10748 | ----------------- | |
10749 | ||
996ae0b0 RK |
10750 | procedure Skip_Spaces is |
10751 | begin | |
10752 | while F <= L and then Get_String_Char (S, F) = C loop | |
10753 | F := F + 1; | |
10754 | end loop; | |
10755 | end Skip_Spaces; | |
10756 | ||
c690a2ec RD |
10757 | -- Start of processing for Arg_Store |
10758 | ||
996ae0b0 RK |
10759 | begin |
10760 | Skip_Spaces; -- skip leading spaces | |
10761 | ||
10762 | -- Loop through characters, changing any embedded | |
b3b9865d AC |
10763 | -- sequence of spaces to a single null character (this |
10764 | -- is how Link_With/Linker_Options differ) | |
996ae0b0 RK |
10765 | |
10766 | while F <= L loop | |
10767 | if Get_String_Char (S, F) = C then | |
10768 | Skip_Spaces; | |
10769 | exit when F > L; | |
10770 | Store_String_Char (ASCII.NUL); | |
10771 | ||
10772 | else | |
10773 | Store_String_Char (Get_String_Char (S, F)); | |
10774 | F := F + 1; | |
10775 | end if; | |
10776 | end loop; | |
c690a2ec | 10777 | end Arg_Store; |
996ae0b0 RK |
10778 | |
10779 | Arg := Next (Arg); | |
10780 | ||
10781 | if Present (Arg) then | |
10782 | Store_String_Char (ASCII.NUL); | |
10783 | end if; | |
10784 | end loop; | |
10785 | ||
10786 | Store_Linker_Option_String (End_String); | |
10787 | end if; | |
10788 | end Link_With; | |
10789 | ||
10790 | ------------------ | |
10791 | -- Linker_Alias -- | |
10792 | ------------------ | |
10793 | ||
10794 | -- pragma Linker_Alias ( | |
10795 | -- [Entity =>] LOCAL_NAME | |
d9e0a587 | 10796 | -- [Target =>] static_string_EXPRESSION); |
996ae0b0 RK |
10797 | |
10798 | when Pragma_Linker_Alias => | |
10799 | GNAT_Pragma; | |
d9e0a587 | 10800 | Check_Arg_Order ((Name_Entity, Name_Target)); |
996ae0b0 RK |
10801 | Check_Arg_Count (2); |
10802 | Check_Optional_Identifier (Arg1, Name_Entity); | |
d9e0a587 | 10803 | Check_Optional_Identifier (Arg2, Name_Target); |
996ae0b0 RK |
10804 | Check_Arg_Is_Library_Level_Local_Name (Arg1); |
10805 | Check_Arg_Is_Static_Expression (Arg2, Standard_String); | |
10806 | ||
10807 | -- The only processing required is to link this item on to the | |
10808 | -- list of rep items for the given entity. This is accomplished | |
10809 | -- by the call to Rep_Item_Too_Late (when no error is detected | |
10810 | -- and False is returned). | |
10811 | ||
0f1a6a0b | 10812 | if Rep_Item_Too_Late (Entity (Get_Pragma_Arg (Arg1)), N) then |
996ae0b0 RK |
10813 | return; |
10814 | else | |
0f1a6a0b | 10815 | Set_Has_Gigi_Rep_Item (Entity (Get_Pragma_Arg (Arg1))); |
996ae0b0 RK |
10816 | end if; |
10817 | ||
d9e0a587 EB |
10818 | ------------------------ |
10819 | -- Linker_Constructor -- | |
10820 | ------------------------ | |
10821 | ||
10822 | -- pragma Linker_Constructor (procedure_LOCAL_NAME); | |
10823 | ||
10824 | -- Code is shared with Linker_Destructor | |
10825 | ||
10826 | ----------------------- | |
10827 | -- Linker_Destructor -- | |
10828 | ----------------------- | |
10829 | ||
10830 | -- pragma Linker_Destructor (procedure_LOCAL_NAME); | |
10831 | ||
10832 | when Pragma_Linker_Constructor | | |
10833 | Pragma_Linker_Destructor => | |
10834 | Linker_Constructor : declare | |
10835 | Arg1_X : Node_Id; | |
10836 | Proc : Entity_Id; | |
10837 | ||
10838 | begin | |
10839 | GNAT_Pragma; | |
10840 | Check_Arg_Count (1); | |
10841 | Check_No_Identifiers; | |
10842 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 10843 | Arg1_X := Get_Pragma_Arg (Arg1); |
d9e0a587 EB |
10844 | Analyze (Arg1_X); |
10845 | Proc := Find_Unique_Parameterless_Procedure (Arg1_X, Arg1); | |
10846 | ||
10847 | if not Is_Library_Level_Entity (Proc) then | |
10848 | Error_Pragma_Arg | |
10849 | ("argument for pragma% must be library level entity", Arg1); | |
10850 | end if; | |
10851 | ||
10852 | -- The only processing required is to link this item on to the | |
10853 | -- list of rep items for the given entity. This is accomplished | |
10854 | -- by the call to Rep_Item_Too_Late (when no error is detected | |
10855 | -- and False is returned). | |
10856 | ||
10857 | if Rep_Item_Too_Late (Proc, N) then | |
10858 | return; | |
10859 | else | |
10860 | Set_Has_Gigi_Rep_Item (Proc); | |
10861 | end if; | |
10862 | end Linker_Constructor; | |
10863 | ||
996ae0b0 RK |
10864 | -------------------- |
10865 | -- Linker_Options -- | |
10866 | -------------------- | |
10867 | ||
10868 | -- pragma Linker_Options (string_EXPRESSION {, string_EXPRESSION}); | |
10869 | ||
996ae0b0 RK |
10870 | when Pragma_Linker_Options => Linker_Options : declare |
10871 | Arg : Node_Id; | |
10872 | ||
10873 | begin | |
07fc65c4 GB |
10874 | Check_Ada_83_Warning; |
10875 | Check_No_Identifiers; | |
10876 | Check_Arg_Count (1); | |
10877 | Check_Is_In_Decl_Part_Or_Package_Spec; | |
21d27997 | 10878 | Check_Arg_Is_Static_Expression (Arg1, Standard_String); |
0f1a6a0b | 10879 | Start_String (Strval (Expr_Value_S (Get_Pragma_Arg (Arg1)))); |
21d27997 RD |
10880 | |
10881 | Arg := Arg2; | |
10882 | while Present (Arg) loop | |
10883 | Check_Arg_Is_Static_Expression (Arg, Standard_String); | |
10884 | Store_String_Char (ASCII.NUL); | |
0f1a6a0b AC |
10885 | Store_String_Chars |
10886 | (Strval (Expr_Value_S (Get_Pragma_Arg (Arg)))); | |
21d27997 RD |
10887 | Arg := Next (Arg); |
10888 | end loop; | |
07fc65c4 | 10889 | |
996ae0b0 RK |
10890 | if Operating_Mode = Generate_Code |
10891 | and then In_Extended_Main_Source_Unit (N) | |
10892 | then | |
996ae0b0 RK |
10893 | Store_Linker_Option_String (End_String); |
10894 | end if; | |
10895 | end Linker_Options; | |
10896 | ||
10897 | -------------------- | |
10898 | -- Linker_Section -- | |
10899 | -------------------- | |
10900 | ||
10901 | -- pragma Linker_Section ( | |
10902 | -- [Entity =>] LOCAL_NAME | |
10903 | -- [Section =>] static_string_EXPRESSION); | |
10904 | ||
10905 | when Pragma_Linker_Section => | |
10906 | GNAT_Pragma; | |
59e5fbe0 | 10907 | Check_Arg_Order ((Name_Entity, Name_Section)); |
996ae0b0 RK |
10908 | Check_Arg_Count (2); |
10909 | Check_Optional_Identifier (Arg1, Name_Entity); | |
10910 | Check_Optional_Identifier (Arg2, Name_Section); | |
10911 | Check_Arg_Is_Library_Level_Local_Name (Arg1); | |
10912 | Check_Arg_Is_Static_Expression (Arg2, Standard_String); | |
10913 | ||
2efcad9f | 10914 | -- This pragma applies only to objects |
32f7efe1 | 10915 | |
0f1a6a0b | 10916 | if not Is_Object (Entity (Get_Pragma_Arg (Arg1))) then |
2efcad9f | 10917 | Error_Pragma_Arg ("pragma% applies only to objects", Arg1); |
32f7efe1 ST |
10918 | end if; |
10919 | ||
996ae0b0 RK |
10920 | -- The only processing required is to link this item on to the |
10921 | -- list of rep items for the given entity. This is accomplished | |
10922 | -- by the call to Rep_Item_Too_Late (when no error is detected | |
10923 | -- and False is returned). | |
10924 | ||
0f1a6a0b | 10925 | if Rep_Item_Too_Late (Entity (Get_Pragma_Arg (Arg1)), N) then |
996ae0b0 RK |
10926 | return; |
10927 | else | |
0f1a6a0b | 10928 | Set_Has_Gigi_Rep_Item (Entity (Get_Pragma_Arg (Arg1))); |
996ae0b0 RK |
10929 | end if; |
10930 | ||
10931 | ---------- | |
10932 | -- List -- | |
10933 | ---------- | |
10934 | ||
10935 | -- pragma List (On | Off) | |
10936 | ||
b3b9865d AC |
10937 | -- There is nothing to do here, since we did all the processing for |
10938 | -- this pragma in Par.Prag (so that it works properly even in syntax | |
10939 | -- only mode). | |
996ae0b0 RK |
10940 | |
10941 | when Pragma_List => | |
10942 | null; | |
10943 | ||
10944 | -------------------- | |
10945 | -- Locking_Policy -- | |
10946 | -------------------- | |
10947 | ||
10948 | -- pragma Locking_Policy (policy_IDENTIFIER); | |
10949 | ||
10950 | when Pragma_Locking_Policy => declare | |
343250a6 PO |
10951 | subtype LP_Range is Name_Id |
10952 | range First_Locking_Policy_Name .. Last_Locking_Policy_Name; | |
10953 | LP_Val : LP_Range; | |
10954 | LP : Character; | |
996ae0b0 RK |
10955 | begin |
10956 | Check_Ada_83_Warning; | |
10957 | Check_Arg_Count (1); | |
10958 | Check_No_Identifiers; | |
10959 | Check_Arg_Is_Locking_Policy (Arg1); | |
10960 | Check_Valid_Configuration_Pragma; | |
343250a6 PO |
10961 | LP_Val := Chars (Get_Pragma_Arg (Arg1)); |
10962 | ||
10963 | case LP_Val is | |
10964 | when Name_Ceiling_Locking => LP := 'C'; | |
10965 | when Name_Inheritance_Locking => LP := 'I'; | |
10966 | when Name_Concurrent_Readers_Locking => LP := 'R'; | |
10967 | end case; | |
996ae0b0 RK |
10968 | |
10969 | if Locking_Policy /= ' ' | |
10970 | and then Locking_Policy /= LP | |
10971 | then | |
10972 | Error_Msg_Sloc := Locking_Policy_Sloc; | |
10973 | Error_Pragma ("locking policy incompatible with policy#"); | |
fbf5a39b | 10974 | |
b3b9865d AC |
10975 | -- Set new policy, but always preserve System_Location since we |
10976 | -- like the error message with the run time name. | |
fbf5a39b | 10977 | |
996ae0b0 RK |
10978 | else |
10979 | Locking_Policy := LP; | |
fbf5a39b AC |
10980 | |
10981 | if Locking_Policy_Sloc /= System_Location then | |
10982 | Locking_Policy_Sloc := Loc; | |
10983 | end if; | |
996ae0b0 RK |
10984 | end if; |
10985 | end; | |
10986 | ||
10987 | ---------------- | |
10988 | -- Long_Float -- | |
10989 | ---------------- | |
10990 | ||
10991 | -- pragma Long_Float (D_Float | G_Float); | |
10992 | ||
a51cd0ec AC |
10993 | when Pragma_Long_Float => Long_Float : declare |
10994 | begin | |
996ae0b0 RK |
10995 | GNAT_Pragma; |
10996 | Check_Valid_Configuration_Pragma; | |
10997 | Check_Arg_Count (1); | |
10998 | Check_No_Identifier (Arg1); | |
10999 | Check_Arg_Is_One_Of (Arg1, Name_D_Float, Name_G_Float); | |
11000 | ||
11001 | if not OpenVMS_On_Target then | |
11002 | Error_Pragma ("?pragma% ignored (applies only to Open'V'M'S)"); | |
11003 | end if; | |
11004 | ||
11005 | -- D_Float case | |
11006 | ||
0f1a6a0b | 11007 | if Chars (Get_Pragma_Arg (Arg1)) = Name_D_Float then |
996ae0b0 | 11008 | if Opt.Float_Format_Long = 'G' then |
a51cd0ec AC |
11009 | Error_Pragma_Arg |
11010 | ("G_Float previously specified", Arg1); | |
11011 | ||
11012 | elsif Current_Sem_Unit /= Main_Unit | |
11013 | and then Opt.Float_Format_Long /= 'D' | |
11014 | then | |
11015 | Error_Pragma_Arg | |
11016 | ("main unit not compiled with pragma Long_Float (D_Float)", | |
11017 | "\pragma% must be used consistently for whole partition", | |
11018 | Arg1); | |
996ae0b0 | 11019 | |
a51cd0ec AC |
11020 | else |
11021 | Opt.Float_Format_Long := 'D'; | |
11022 | end if; | |
996ae0b0 RK |
11023 | |
11024 | -- G_Float case (this is the default, does not need overriding) | |
11025 | ||
11026 | else | |
11027 | if Opt.Float_Format_Long = 'D' then | |
11028 | Error_Pragma ("D_Float previously specified"); | |
996ae0b0 | 11029 | |
a51cd0ec AC |
11030 | elsif Current_Sem_Unit /= Main_Unit |
11031 | and then Opt.Float_Format_Long /= 'G' | |
11032 | then | |
11033 | Error_Pragma_Arg | |
11034 | ("main unit not compiled with pragma Long_Float (G_Float)", | |
11035 | "\pragma% must be used consistently for whole partition", | |
11036 | Arg1); | |
11037 | ||
11038 | else | |
11039 | Opt.Float_Format_Long := 'G'; | |
11040 | end if; | |
996ae0b0 RK |
11041 | end if; |
11042 | ||
11043 | Set_Standard_Fpt_Formats; | |
a51cd0ec | 11044 | end Long_Float; |
996ae0b0 RK |
11045 | |
11046 | ----------------------- | |
11047 | -- Machine_Attribute -- | |
11048 | ----------------------- | |
11049 | ||
11050 | -- pragma Machine_Attribute ( | |
470cd9e9 RD |
11051 | -- [Entity =>] LOCAL_NAME, |
11052 | -- [Attribute_Name =>] static_string_EXPRESSION | |
d81b4c61 | 11053 | -- [, [Info =>] static_EXPRESSION] ); |
996ae0b0 RK |
11054 | |
11055 | when Pragma_Machine_Attribute => Machine_Attribute : declare | |
11056 | Def_Id : Entity_Id; | |
11057 | ||
11058 | begin | |
11059 | GNAT_Pragma; | |
59e5fbe0 | 11060 | Check_Arg_Order ((Name_Entity, Name_Attribute_Name, Name_Info)); |
996ae0b0 RK |
11061 | |
11062 | if Arg_Count = 3 then | |
59e5fbe0 | 11063 | Check_Optional_Identifier (Arg3, Name_Info); |
d81b4c61 | 11064 | Check_Arg_Is_Static_Expression (Arg3); |
996ae0b0 RK |
11065 | else |
11066 | Check_Arg_Count (2); | |
11067 | end if; | |
11068 | ||
996ae0b0 | 11069 | Check_Optional_Identifier (Arg1, Name_Entity); |
59e5fbe0 RD |
11070 | Check_Optional_Identifier (Arg2, Name_Attribute_Name); |
11071 | Check_Arg_Is_Local_Name (Arg1); | |
996ae0b0 | 11072 | Check_Arg_Is_Static_Expression (Arg2, Standard_String); |
0f1a6a0b | 11073 | Def_Id := Entity (Get_Pragma_Arg (Arg1)); |
996ae0b0 RK |
11074 | |
11075 | if Is_Access_Type (Def_Id) then | |
11076 | Def_Id := Designated_Type (Def_Id); | |
11077 | end if; | |
11078 | ||
11079 | if Rep_Item_Too_Early (Def_Id, N) then | |
11080 | return; | |
11081 | end if; | |
11082 | ||
11083 | Def_Id := Underlying_Type (Def_Id); | |
11084 | ||
11085 | -- The only processing required is to link this item on to the | |
11086 | -- list of rep items for the given entity. This is accomplished | |
11087 | -- by the call to Rep_Item_Too_Late (when no error is detected | |
11088 | -- and False is returned). | |
11089 | ||
11090 | if Rep_Item_Too_Late (Def_Id, N) then | |
11091 | return; | |
11092 | else | |
0f1a6a0b | 11093 | Set_Has_Gigi_Rep_Item (Entity (Get_Pragma_Arg (Arg1))); |
996ae0b0 RK |
11094 | end if; |
11095 | end Machine_Attribute; | |
11096 | ||
11097 | ---------- | |
11098 | -- Main -- | |
11099 | ---------- | |
11100 | ||
c690a2ec RD |
11101 | -- pragma Main |
11102 | -- (MAIN_OPTION [, MAIN_OPTION]); | |
996ae0b0 | 11103 | |
c690a2ec RD |
11104 | -- MAIN_OPTION ::= |
11105 | -- [STACK_SIZE =>] static_integer_EXPRESSION | |
11106 | -- | [TASK_STACK_SIZE_DEFAULT =>] static_integer_EXPRESSION | |
11107 | -- | [TIME_SLICING_ENABLED =>] static_boolean_EXPRESSION | |
996ae0b0 RK |
11108 | |
11109 | when Pragma_Main => Main : declare | |
11110 | Args : Args_List (1 .. 3); | |
fbf5a39b | 11111 | Names : constant Name_List (1 .. 3) := ( |
996ae0b0 RK |
11112 | Name_Stack_Size, |
11113 | Name_Task_Stack_Size_Default, | |
11114 | Name_Time_Slicing_Enabled); | |
11115 | ||
11116 | Nod : Node_Id; | |
11117 | ||
11118 | begin | |
11119 | GNAT_Pragma; | |
11120 | Gather_Associations (Names, Args); | |
11121 | ||
11122 | for J in 1 .. 2 loop | |
11123 | if Present (Args (J)) then | |
11124 | Check_Arg_Is_Static_Expression (Args (J), Any_Integer); | |
11125 | end if; | |
11126 | end loop; | |
11127 | ||
11128 | if Present (Args (3)) then | |
11129 | Check_Arg_Is_Static_Expression (Args (3), Standard_Boolean); | |
11130 | end if; | |
11131 | ||
11132 | Nod := Next (N); | |
11133 | while Present (Nod) loop | |
11134 | if Nkind (Nod) = N_Pragma | |
1b24ada5 | 11135 | and then Pragma_Name (Nod) = Name_Main |
996ae0b0 | 11136 | then |
1b24ada5 | 11137 | Error_Msg_Name_1 := Pname; |
996ae0b0 RK |
11138 | Error_Msg_N ("duplicate pragma% not permitted", Nod); |
11139 | end if; | |
11140 | ||
11141 | Next (Nod); | |
11142 | end loop; | |
11143 | end Main; | |
11144 | ||
11145 | ------------------ | |
11146 | -- Main_Storage -- | |
11147 | ------------------ | |
11148 | ||
11149 | -- pragma Main_Storage | |
11150 | -- (MAIN_STORAGE_OPTION [, MAIN_STORAGE_OPTION]); | |
11151 | ||
11152 | -- MAIN_STORAGE_OPTION ::= | |
11153 | -- [WORKING_STORAGE =>] static_SIMPLE_EXPRESSION | |
11154 | -- | [TOP_GUARD =>] static_SIMPLE_EXPRESSION | |
11155 | ||
11156 | when Pragma_Main_Storage => Main_Storage : declare | |
11157 | Args : Args_List (1 .. 2); | |
fbf5a39b | 11158 | Names : constant Name_List (1 .. 2) := ( |
996ae0b0 RK |
11159 | Name_Working_Storage, |
11160 | Name_Top_Guard); | |
11161 | ||
11162 | Nod : Node_Id; | |
11163 | ||
11164 | begin | |
11165 | GNAT_Pragma; | |
11166 | Gather_Associations (Names, Args); | |
11167 | ||
11168 | for J in 1 .. 2 loop | |
11169 | if Present (Args (J)) then | |
11170 | Check_Arg_Is_Static_Expression (Args (J), Any_Integer); | |
11171 | end if; | |
11172 | end loop; | |
11173 | ||
11174 | Check_In_Main_Program; | |
11175 | ||
11176 | Nod := Next (N); | |
11177 | while Present (Nod) loop | |
11178 | if Nkind (Nod) = N_Pragma | |
1b24ada5 | 11179 | and then Pragma_Name (Nod) = Name_Main_Storage |
996ae0b0 | 11180 | then |
1b24ada5 | 11181 | Error_Msg_Name_1 := Pname; |
996ae0b0 RK |
11182 | Error_Msg_N ("duplicate pragma% not permitted", Nod); |
11183 | end if; | |
11184 | ||
11185 | Next (Nod); | |
11186 | end loop; | |
996ae0b0 RK |
11187 | end Main_Storage; |
11188 | ||
11189 | ----------------- | |
11190 | -- Memory_Size -- | |
11191 | ----------------- | |
11192 | ||
11193 | -- pragma Memory_Size (NUMERIC_LITERAL) | |
11194 | ||
11195 | when Pragma_Memory_Size => | |
11196 | GNAT_Pragma; | |
11197 | ||
11198 | -- Memory size is simply ignored | |
11199 | ||
11200 | Check_No_Identifiers; | |
11201 | Check_Arg_Count (1); | |
11202 | Check_Arg_Is_Integer_Literal (Arg1); | |
11203 | ||
2fa9443e ES |
11204 | ------------- |
11205 | -- No_Body -- | |
11206 | ------------- | |
11207 | ||
11208 | -- pragma No_Body; | |
11209 | ||
11210 | -- The only correct use of this pragma is on its own in a file, in | |
11211 | -- which case it is specially processed (see Gnat1drv.Check_Bad_Body | |
11212 | -- and Frontend, which use Sinput.L.Source_File_Is_Pragma_No_Body to | |
11213 | -- check for a file containing nothing but a No_Body pragma). If we | |
11214 | -- attempt to process it during normal semantics processing, it means | |
11215 | -- it was misplaced. | |
11216 | ||
11217 | when Pragma_No_Body => | |
a30a01fe | 11218 | GNAT_Pragma; |
21d27997 | 11219 | Pragma_Misplaced; |
2fa9443e | 11220 | |
996ae0b0 RK |
11221 | --------------- |
11222 | -- No_Return -- | |
11223 | --------------- | |
11224 | ||
57193e09 | 11225 | -- pragma No_Return (procedure_LOCAL_NAME {, procedure_Local_Name}); |
996ae0b0 | 11226 | |
fbf5a39b | 11227 | when Pragma_No_Return => No_Return : declare |
996ae0b0 RK |
11228 | Id : Node_Id; |
11229 | E : Entity_Id; | |
11230 | Found : Boolean; | |
57193e09 | 11231 | Arg : Node_Id; |
996ae0b0 RK |
11232 | |
11233 | begin | |
1c5c721a | 11234 | Ada_2005_Pragma; |
57193e09 | 11235 | Check_At_Least_N_Arguments (1); |
996ae0b0 | 11236 | |
57193e09 | 11237 | -- Loop through arguments of pragma |
996ae0b0 | 11238 | |
57193e09 TQ |
11239 | Arg := Arg1; |
11240 | while Present (Arg) loop | |
11241 | Check_Arg_Is_Local_Name (Arg); | |
0f1a6a0b | 11242 | Id := Get_Pragma_Arg (Arg); |
57193e09 | 11243 | Analyze (Id); |
996ae0b0 | 11244 | |
57193e09 TQ |
11245 | if not Is_Entity_Name (Id) then |
11246 | Error_Pragma_Arg ("entity name required", Arg); | |
11247 | end if; | |
996ae0b0 | 11248 | |
57193e09 TQ |
11249 | if Etype (Id) = Any_Type then |
11250 | raise Pragma_Exit; | |
996ae0b0 RK |
11251 | end if; |
11252 | ||
57193e09 | 11253 | -- Loop to find matching procedures |
996ae0b0 | 11254 | |
57193e09 TQ |
11255 | E := Entity (Id); |
11256 | Found := False; | |
11257 | while Present (E) | |
11258 | and then Scope (E) = Current_Scope | |
11259 | loop | |
8a95f4e8 | 11260 | if Ekind_In (E, E_Procedure, E_Generic_Procedure) then |
57193e09 | 11261 | Set_No_Return (E); |
470cd9e9 RD |
11262 | |
11263 | -- Set flag on any alias as well | |
11264 | ||
11265 | if Is_Overloadable (E) and then Present (Alias (E)) then | |
11266 | Set_No_Return (Alias (E)); | |
11267 | end if; | |
11268 | ||
57193e09 TQ |
11269 | Found := True; |
11270 | end if; | |
11271 | ||
0f1a6a0b | 11272 | exit when From_Aspect_Specification (N); |
57193e09 TQ |
11273 | E := Homonym (E); |
11274 | end loop; | |
11275 | ||
11276 | if not Found then | |
11277 | Error_Pragma_Arg ("no procedure & found for pragma%", Arg); | |
11278 | end if; | |
11279 | ||
11280 | Next (Arg); | |
11281 | end loop; | |
fbf5a39b AC |
11282 | end No_Return; |
11283 | ||
a30a01fe RD |
11284 | ----------------- |
11285 | -- No_Run_Time -- | |
11286 | ----------------- | |
11287 | ||
11288 | -- pragma No_Run_Time; | |
11289 | ||
b3b9865d AC |
11290 | -- Note: this pragma is retained for backwards compatibility. See |
11291 | -- body of Rtsfind for full details on its handling. | |
a30a01fe RD |
11292 | |
11293 | when Pragma_No_Run_Time => | |
11294 | GNAT_Pragma; | |
11295 | Check_Valid_Configuration_Pragma; | |
11296 | Check_Arg_Count (0); | |
11297 | ||
11298 | No_Run_Time_Mode := True; | |
11299 | Configurable_Run_Time_Mode := True; | |
11300 | ||
11301 | -- Set Duration to 32 bits if word size is 32 | |
11302 | ||
11303 | if Ttypes.System_Word_Size = 32 then | |
11304 | Duration_32_Bits_On_Target := True; | |
11305 | end if; | |
11306 | ||
11307 | -- Set appropriate restrictions | |
11308 | ||
11309 | Set_Restriction (No_Finalization, N); | |
11310 | Set_Restriction (No_Exception_Handlers, N); | |
11311 | Set_Restriction (Max_Tasks, N, 0); | |
11312 | Set_Restriction (No_Tasking, N); | |
11313 | ||
8a6a52dc AC |
11314 | ------------------------ |
11315 | -- No_Strict_Aliasing -- | |
11316 | ------------------------ | |
11317 | ||
6e18b0e5 RD |
11318 | -- pragma No_Strict_Aliasing [([Entity =>] type_LOCAL_NAME)]; |
11319 | ||
a30a01fe | 11320 | when Pragma_No_Strict_Aliasing => No_Strict_Aliasing : declare |
8a6a52dc AC |
11321 | E_Id : Entity_Id; |
11322 | ||
11323 | begin | |
11324 | GNAT_Pragma; | |
11325 | Check_At_Most_N_Arguments (1); | |
11326 | ||
11327 | if Arg_Count = 0 then | |
11328 | Check_Valid_Configuration_Pragma; | |
11329 | Opt.No_Strict_Aliasing := True; | |
11330 | ||
11331 | else | |
11332 | Check_Optional_Identifier (Arg2, Name_Entity); | |
11333 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 11334 | E_Id := Entity (Get_Pragma_Arg (Arg1)); |
8a6a52dc AC |
11335 | |
11336 | if E_Id = Any_Type then | |
11337 | return; | |
11338 | elsif No (E_Id) or else not Is_Access_Type (E_Id) then | |
11339 | Error_Pragma_Arg ("pragma% requires access type", Arg1); | |
11340 | end if; | |
11341 | ||
e6f69614 | 11342 | Set_No_Strict_Aliasing (Implementation_Base_Type (E_Id)); |
8a6a52dc | 11343 | end if; |
a30a01fe RD |
11344 | end No_Strict_Aliasing; |
11345 | ||
11346 | ----------------------- | |
11347 | -- Normalize_Scalars -- | |
11348 | ----------------------- | |
11349 | ||
11350 | -- pragma Normalize_Scalars; | |
11351 | ||
11352 | when Pragma_Normalize_Scalars => | |
11353 | Check_Ada_83_Warning; | |
11354 | Check_Arg_Count (0); | |
11355 | Check_Valid_Configuration_Pragma; | |
5a989c6b | 11356 | |
406935b6 | 11357 | -- Normalize_Scalars creates false positives in CodePeer, and |
56812278 | 11358 | -- incorrect negative results in Alfa mode, so ignore this pragma |
406935b6 | 11359 | -- in these modes. |
5a989c6b | 11360 | |
56812278 | 11361 | if not (CodePeer_Mode or Alfa_Mode) then |
5a989c6b AC |
11362 | Normalize_Scalars := True; |
11363 | Init_Or_Norm_Scalars := True; | |
11364 | end if; | |
8a6a52dc | 11365 | |
fbf5a39b AC |
11366 | ----------------- |
11367 | -- Obsolescent -- | |
11368 | ----------------- | |
11369 | ||
ed57136d AC |
11370 | -- pragma Obsolescent; |
11371 | ||
11372 | -- pragma Obsolescent ( | |
11373 | -- [Message =>] static_string_EXPRESSION | |
11374 | -- [,[Version =>] Ada_05]]); | |
11375 | ||
11376 | -- pragma Obsolescent ( | |
11377 | -- [Entity =>] NAME | |
11378 | -- [,[Message =>] static_string_EXPRESSION | |
11379 | -- [,[Version =>] Ada_05]] ); | |
fbf5a39b AC |
11380 | |
11381 | when Pragma_Obsolescent => Obsolescent : declare | |
ac9e9918 RD |
11382 | Ename : Node_Id; |
11383 | Decl : Node_Id; | |
11384 | ||
11385 | procedure Set_Obsolescent (E : Entity_Id); | |
11386 | -- Given an entity Ent, mark it as obsolescent if appropriate | |
82c80734 | 11387 | |
ac9e9918 RD |
11388 | --------------------- |
11389 | -- Set_Obsolescent -- | |
11390 | --------------------- | |
f02b8bb8 | 11391 | |
ac9e9918 RD |
11392 | procedure Set_Obsolescent (E : Entity_Id) is |
11393 | Active : Boolean; | |
11394 | Ent : Entity_Id; | |
11395 | S : String_Id; | |
f02b8bb8 | 11396 | |
f02b8bb8 | 11397 | begin |
ac9e9918 RD |
11398 | Active := True; |
11399 | Ent := E; | |
11400 | ||
11401 | -- Entity name was given | |
11402 | ||
11403 | if Present (Ename) then | |
11404 | ||
b3b9865d AC |
11405 | -- If entity name matches, we are fine. Save entity in |
11406 | -- pragma argument, for ASIS use. | |
ac9e9918 RD |
11407 | |
11408 | if Chars (Ename) = Chars (Ent) then | |
bb83ec2f ES |
11409 | Set_Entity (Ename, Ent); |
11410 | Generate_Reference (Ent, Ename); | |
ac9e9918 RD |
11411 | |
11412 | -- If entity name does not match, only possibility is an | |
11413 | -- enumeration literal from an enumeration type declaration. | |
11414 | ||
11415 | elsif Ekind (Ent) /= E_Enumeration_Type then | |
11416 | Error_Pragma | |
11417 | ("pragma % entity name does not match declaration"); | |
11418 | ||
11419 | else | |
11420 | Ent := First_Literal (E); | |
11421 | loop | |
11422 | if No (Ent) then | |
11423 | Error_Pragma | |
11424 | ("pragma % entity name does not match any " & | |
11425 | "enumeration literal"); | |
11426 | ||
11427 | elsif Chars (Ent) = Chars (Ename) then | |
bb83ec2f ES |
11428 | Set_Entity (Ename, Ent); |
11429 | Generate_Reference (Ent, Ename); | |
ac9e9918 RD |
11430 | exit; |
11431 | ||
11432 | else | |
11433 | Ent := Next_Literal (Ent); | |
11434 | end if; | |
11435 | end loop; | |
11436 | end if; | |
f02b8bb8 | 11437 | end if; |
ac9e9918 RD |
11438 | |
11439 | -- Ent points to entity to be marked | |
11440 | ||
11441 | if Arg_Count >= 1 then | |
11442 | ||
11443 | -- Deal with static string argument | |
11444 | ||
11445 | Check_Arg_Is_Static_Expression (Arg1, Standard_String); | |
0f1a6a0b | 11446 | S := Strval (Get_Pragma_Arg (Arg1)); |
ac9e9918 RD |
11447 | |
11448 | for J in 1 .. String_Length (S) loop | |
11449 | if not In_Character_Range (Get_String_Char (S, J)) then | |
11450 | Error_Pragma_Arg | |
11451 | ("pragma% argument does not allow wide characters", | |
11452 | Arg1); | |
11453 | end if; | |
11454 | end loop; | |
11455 | ||
21d27997 | 11456 | Obsolescent_Warnings.Append |
0f1a6a0b | 11457 | ((Ent => Ent, Msg => Strval (Get_Pragma_Arg (Arg1)))); |
ac9e9918 RD |
11458 | |
11459 | -- Check for Ada_05 parameter | |
11460 | ||
11461 | if Arg_Count /= 1 then | |
11462 | Check_Arg_Count (2); | |
11463 | ||
11464 | declare | |
11465 | Argx : constant Node_Id := Get_Pragma_Arg (Arg2); | |
11466 | ||
11467 | begin | |
11468 | Check_Arg_Is_Identifier (Argx); | |
11469 | ||
11470 | if Chars (Argx) /= Name_Ada_05 then | |
11471 | Error_Msg_Name_2 := Name_Ada_05; | |
11472 | Error_Pragma_Arg | |
11473 | ("only allowed argument for pragma% is %", Argx); | |
11474 | end if; | |
11475 | ||
0791fbe9 | 11476 | if Ada_Version_Explicit < Ada_2005 |
ac9e9918 RD |
11477 | or else not Warn_On_Ada_2005_Compatibility |
11478 | then | |
11479 | Active := False; | |
11480 | end if; | |
11481 | end; | |
11482 | end if; | |
11483 | end if; | |
11484 | ||
11485 | -- Set flag if pragma active | |
11486 | ||
11487 | if Active then | |
11488 | Set_Is_Obsolescent (Ent); | |
11489 | end if; | |
11490 | ||
11491 | return; | |
11492 | end Set_Obsolescent; | |
f02b8bb8 RD |
11493 | |
11494 | -- Start of processing for pragma Obsolescent | |
11495 | ||
fbf5a39b AC |
11496 | begin |
11497 | GNAT_Pragma; | |
fbf5a39b | 11498 | |
ac9e9918 | 11499 | Check_At_Most_N_Arguments (3); |
fbf5a39b | 11500 | |
ac9e9918 | 11501 | -- See if first argument specifies an entity name |
82c80734 | 11502 | |
ac9e9918 | 11503 | if Arg_Count >= 1 |
ed57136d AC |
11504 | and then |
11505 | (Chars (Arg1) = Name_Entity | |
11506 | or else | |
11507 | Nkind_In (Get_Pragma_Arg (Arg1), N_Character_Literal, | |
11508 | N_Identifier, | |
11509 | N_Operator_Symbol)) | |
ac9e9918 RD |
11510 | then |
11511 | Ename := Get_Pragma_Arg (Arg1); | |
82c80734 | 11512 | |
ac9e9918 | 11513 | -- Eliminate first argument, so we can share processing |
82c80734 | 11514 | |
ac9e9918 RD |
11515 | Arg1 := Arg2; |
11516 | Arg2 := Arg3; | |
11517 | Arg_Count := Arg_Count - 1; | |
82c80734 | 11518 | |
ac9e9918 | 11519 | -- No Entity name argument given |
82c80734 | 11520 | |
ac9e9918 RD |
11521 | else |
11522 | Ename := Empty; | |
59e5fbe0 | 11523 | end if; |
82c80734 | 11524 | |
ef7c5692 AC |
11525 | if Arg_Count >= 1 then |
11526 | Check_Optional_Identifier (Arg1, Name_Message); | |
11527 | ||
11528 | if Arg_Count = 2 then | |
11529 | Check_Optional_Identifier (Arg2, Name_Version); | |
11530 | end if; | |
11531 | end if; | |
82c80734 | 11532 | |
ac9e9918 | 11533 | -- Get immediately preceding declaration |
59e5fbe0 | 11534 | |
ac9e9918 RD |
11535 | Decl := Prev (N); |
11536 | while Present (Decl) and then Nkind (Decl) = N_Pragma loop | |
11537 | Prev (Decl); | |
11538 | end loop; | |
59e5fbe0 | 11539 | |
ac9e9918 | 11540 | -- Cases where we do not follow anything other than another pragma |
59e5fbe0 | 11541 | |
ac9e9918 | 11542 | if No (Decl) then |
59e5fbe0 | 11543 | |
ac9e9918 RD |
11544 | -- First case: library level compilation unit declaration with |
11545 | -- the pragma immediately following the declaration. | |
59e5fbe0 | 11546 | |
ac9e9918 RD |
11547 | if Nkind (Parent (N)) = N_Compilation_Unit_Aux then |
11548 | Set_Obsolescent | |
11549 | (Defining_Entity (Unit (Parent (Parent (N))))); | |
11550 | return; | |
82c80734 | 11551 | |
ac9e9918 | 11552 | -- Case 2: library unit placement for package |
82c80734 | 11553 | |
ac9e9918 | 11554 | else |
59e5fbe0 | 11555 | declare |
ac9e9918 | 11556 | Ent : constant Entity_Id := Find_Lib_Unit_Name; |
59e5fbe0 | 11557 | begin |
b9b2405f | 11558 | if Is_Package_Or_Generic_Package (Ent) then |
ac9e9918 RD |
11559 | Set_Obsolescent (Ent); |
11560 | return; | |
59e5fbe0 RD |
11561 | end if; |
11562 | end; | |
82c80734 | 11563 | end if; |
59e5fbe0 | 11564 | |
ac9e9918 | 11565 | -- Cases where we must follow a declaration |
59e5fbe0 | 11566 | |
ac9e9918 | 11567 | else |
361effb1 | 11568 | if Nkind (Decl) not in N_Declaration |
ac9e9918 RD |
11569 | and then Nkind (Decl) not in N_Later_Decl_Item |
11570 | and then Nkind (Decl) not in N_Generic_Declaration | |
f7ca1d04 | 11571 | and then Nkind (Decl) not in N_Renaming_Declaration |
ac9e9918 RD |
11572 | then |
11573 | Error_Pragma | |
d7ba4df4 RD |
11574 | ("pragma% misplaced, " |
11575 | & "must immediately follow a declaration"); | |
ac9e9918 RD |
11576 | |
11577 | else | |
11578 | Set_Obsolescent (Defining_Entity (Decl)); | |
11579 | return; | |
11580 | end if; | |
59e5fbe0 | 11581 | end if; |
fbf5a39b | 11582 | end Obsolescent; |
996ae0b0 | 11583 | |
996ae0b0 RK |
11584 | -------------- |
11585 | -- Optimize -- | |
11586 | -------------- | |
11587 | ||
1b24ada5 | 11588 | -- pragma Optimize (Time | Space | Off); |
996ae0b0 RK |
11589 | |
11590 | -- The actual check for optimize is done in Gigi. Note that this | |
11591 | -- pragma does not actually change the optimization setting, it | |
11592 | -- simply checks that it is consistent with the pragma. | |
11593 | ||
11594 | when Pragma_Optimize => | |
11595 | Check_No_Identifiers; | |
11596 | Check_Arg_Count (1); | |
11597 | Check_Arg_Is_One_Of (Arg1, Name_Time, Name_Space, Name_Off); | |
11598 | ||
1b24ada5 RD |
11599 | ------------------------ |
11600 | -- Optimize_Alignment -- | |
11601 | ------------------------ | |
11602 | ||
11603 | -- pragma Optimize_Alignment (Time | Space | Off); | |
11604 | ||
bd29d519 | 11605 | when Pragma_Optimize_Alignment => Optimize_Alignment : begin |
1b24ada5 RD |
11606 | GNAT_Pragma; |
11607 | Check_No_Identifiers; | |
11608 | Check_Arg_Count (1); | |
11609 | Check_Valid_Configuration_Pragma; | |
11610 | ||
11611 | declare | |
11612 | Nam : constant Name_Id := Chars (Get_Pragma_Arg (Arg1)); | |
11613 | begin | |
11614 | case Nam is | |
11615 | when Name_Time => | |
11616 | Opt.Optimize_Alignment := 'T'; | |
11617 | when Name_Space => | |
11618 | Opt.Optimize_Alignment := 'S'; | |
11619 | when Name_Off => | |
11620 | Opt.Optimize_Alignment := 'O'; | |
11621 | when others => | |
11622 | Error_Pragma_Arg ("invalid argument for pragma%", Arg1); | |
11623 | end case; | |
11624 | end; | |
11625 | ||
21d27997 RD |
11626 | -- Set indication that mode is set locally. If we are in fact in a |
11627 | -- configuration pragma file, this setting is harmless since the | |
11628 | -- switch will get reset anyway at the start of each unit. | |
11629 | ||
11630 | Optimize_Alignment_Local := True; | |
bd29d519 AC |
11631 | end Optimize_Alignment; |
11632 | ||
11633 | ------------- | |
11634 | -- Ordered -- | |
11635 | ------------- | |
11636 | ||
11637 | -- pragma Ordered (first_enumeration_subtype_LOCAL_NAME); | |
11638 | ||
11639 | when Pragma_Ordered => Ordered : declare | |
11640 | Assoc : constant Node_Id := Arg1; | |
11641 | Type_Id : Node_Id; | |
11642 | Typ : Entity_Id; | |
11643 | ||
11644 | begin | |
11645 | GNAT_Pragma; | |
11646 | Check_No_Identifiers; | |
11647 | Check_Arg_Count (1); | |
11648 | Check_Arg_Is_Local_Name (Arg1); | |
11649 | ||
0f1a6a0b | 11650 | Type_Id := Get_Pragma_Arg (Assoc); |
bd29d519 AC |
11651 | Find_Type (Type_Id); |
11652 | Typ := Entity (Type_Id); | |
11653 | ||
11654 | if Typ = Any_Type then | |
11655 | return; | |
11656 | else | |
11657 | Typ := Underlying_Type (Typ); | |
11658 | end if; | |
11659 | ||
11660 | if not Is_Enumeration_Type (Typ) then | |
11661 | Error_Pragma ("pragma% must specify enumeration type"); | |
11662 | end if; | |
11663 | ||
11664 | Check_First_Subtype (Arg1); | |
11665 | Set_Has_Pragma_Ordered (Base_Type (Typ)); | |
11666 | end Ordered; | |
21d27997 | 11667 | |
996ae0b0 RK |
11668 | ---------- |
11669 | -- Pack -- | |
11670 | ---------- | |
11671 | ||
11672 | -- pragma Pack (first_subtype_LOCAL_NAME); | |
11673 | ||
11674 | when Pragma_Pack => Pack : declare | |
fbf5a39b | 11675 | Assoc : constant Node_Id := Arg1; |
996ae0b0 RK |
11676 | Type_Id : Node_Id; |
11677 | Typ : Entity_Id; | |
ffdb3d3b AC |
11678 | Ctyp : Entity_Id; |
11679 | Ignore : Boolean := False; | |
996ae0b0 RK |
11680 | |
11681 | begin | |
11682 | Check_No_Identifiers; | |
11683 | Check_Arg_Count (1); | |
11684 | Check_Arg_Is_Local_Name (Arg1); | |
11685 | ||
0f1a6a0b | 11686 | Type_Id := Get_Pragma_Arg (Assoc); |
996ae0b0 RK |
11687 | Find_Type (Type_Id); |
11688 | Typ := Entity (Type_Id); | |
11689 | ||
11690 | if Typ = Any_Type | |
11691 | or else Rep_Item_Too_Early (Typ, N) | |
11692 | then | |
11693 | return; | |
11694 | else | |
11695 | Typ := Underlying_Type (Typ); | |
11696 | end if; | |
11697 | ||
11698 | if not Is_Array_Type (Typ) and then not Is_Record_Type (Typ) then | |
11699 | Error_Pragma ("pragma% must specify array or record type"); | |
11700 | end if; | |
11701 | ||
11702 | Check_First_Subtype (Arg1); | |
0f1a6a0b | 11703 | Check_Duplicate_Pragma (Typ); |
996ae0b0 | 11704 | |
6e18b0e5 | 11705 | -- Array type |
996ae0b0 | 11706 | |
0f1a6a0b | 11707 | if Is_Array_Type (Typ) then |
ffdb3d3b | 11708 | Ctyp := Component_Type (Typ); |
6e18b0e5 | 11709 | |
ffdb3d3b | 11710 | -- Ignore pack that does nothing |
6e18b0e5 | 11711 | |
ffdb3d3b AC |
11712 | if Known_Static_Esize (Ctyp) |
11713 | and then Known_Static_RM_Size (Ctyp) | |
11714 | and then Esize (Ctyp) = RM_Size (Ctyp) | |
094cefda | 11715 | and then Addressable (Esize (Ctyp)) |
ffdb3d3b AC |
11716 | then |
11717 | Ignore := True; | |
6e18b0e5 | 11718 | end if; |
996ae0b0 | 11719 | |
094cefda AC |
11720 | -- Process OK pragma Pack. Note that if there is a separate |
11721 | -- component clause present, the Pack will be cancelled. This | |
11722 | -- processing is in Freeze. | |
6e18b0e5 | 11723 | |
094cefda | 11724 | if not Rep_Item_Too_Late (Typ, N) then |
6e18b0e5 | 11725 | |
094cefda AC |
11726 | -- In the context of static code analysis, we do not need |
11727 | -- complex front-end expansions related to pragma Pack, | |
406935b6 | 11728 | -- so disable handling of pragma Pack in these cases. |
6e18b0e5 | 11729 | |
56812278 | 11730 | if CodePeer_Mode or Alfa_Mode then |
094cefda | 11731 | null; |
d58b9515 | 11732 | |
0f1a6a0b AC |
11733 | -- Don't attempt any packing for VM targets. We possibly |
11734 | -- could deal with some cases of array bit-packing, but we | |
11735 | -- don't bother, since this is not a typical kind of | |
11736 | -- representation in the VM context anyway (and would not | |
11737 | -- for example work nicely with the debugger). | |
11738 | ||
11739 | elsif VM_Target /= No_VM then | |
11740 | if not GNAT_Mode then | |
11741 | Error_Pragma | |
11742 | ("?pragma% ignored in this configuration"); | |
11743 | end if; | |
ce14c577 | 11744 | |
0f1a6a0b AC |
11745 | -- Normal case where we do the pack action |
11746 | ||
11747 | else | |
094cefda | 11748 | if not Ignore then |
eaba57fb RD |
11749 | Set_Is_Packed (Base_Type (Typ)); |
11750 | Set_Has_Non_Standard_Rep (Base_Type (Typ)); | |
094cefda | 11751 | end if; |
ffdb3d3b | 11752 | |
eaba57fb | 11753 | Set_Has_Pragma_Pack (Base_Type (Typ)); |
6e18b0e5 | 11754 | end if; |
996ae0b0 RK |
11755 | end if; |
11756 | ||
6e18b0e5 | 11757 | -- For record types, the pack is always effective |
996ae0b0 | 11758 | |
fbf5a39b | 11759 | else pragma Assert (Is_Record_Type (Typ)); |
996ae0b0 | 11760 | if not Rep_Item_Too_Late (Typ, N) then |
540b5d9c | 11761 | |
0f1a6a0b AC |
11762 | -- Ignore pack request with warning in VM mode (skip warning |
11763 | -- if we are compiling GNAT run time library). | |
11764 | ||
11765 | if VM_Target /= No_VM then | |
11766 | if not GNAT_Mode then | |
11767 | Error_Pragma | |
11768 | ("?pragma% ignored in this configuration"); | |
11769 | end if; | |
11770 | ||
11771 | -- Normal case of pack request active | |
11772 | ||
11773 | else | |
eaba57fb RD |
11774 | Set_Is_Packed (Base_Type (Typ)); |
11775 | Set_Has_Pragma_Pack (Base_Type (Typ)); | |
11776 | Set_Has_Non_Standard_Rep (Base_Type (Typ)); | |
2fa9443e | 11777 | end if; |
996ae0b0 RK |
11778 | end if; |
11779 | end if; | |
11780 | end Pack; | |
11781 | ||
11782 | ---------- | |
11783 | -- Page -- | |
11784 | ---------- | |
11785 | ||
11786 | -- pragma Page; | |
11787 | ||
b3b9865d AC |
11788 | -- There is nothing to do here, since we did all the processing for |
11789 | -- this pragma in Par.Prag (so that it works properly even in syntax | |
11790 | -- only mode). | |
996ae0b0 RK |
11791 | |
11792 | when Pragma_Page => | |
11793 | null; | |
11794 | ||
11795 | ------------- | |
11796 | -- Passive -- | |
11797 | ------------- | |
11798 | ||
11799 | -- pragma Passive [(PASSIVE_FORM)]; | |
11800 | ||
2b3d67a5 | 11801 | -- PASSIVE_FORM ::= Semaphore | No |
996ae0b0 RK |
11802 | |
11803 | when Pragma_Passive => | |
11804 | GNAT_Pragma; | |
11805 | ||
11806 | if Nkind (Parent (N)) /= N_Task_Definition then | |
11807 | Error_Pragma ("pragma% must be within task definition"); | |
11808 | end if; | |
11809 | ||
11810 | if Arg_Count /= 0 then | |
11811 | Check_Arg_Count (1); | |
11812 | Check_Arg_Is_One_Of (Arg1, Name_Semaphore, Name_No); | |
11813 | end if; | |
11814 | ||
ac9e9918 RD |
11815 | ---------------------------------- |
11816 | -- Preelaborable_Initialization -- | |
11817 | ---------------------------------- | |
11818 | ||
11819 | -- pragma Preelaborable_Initialization (DIRECT_NAME); | |
11820 | ||
11821 | when Pragma_Preelaborable_Initialization => Preelab_Init : declare | |
11822 | Ent : Entity_Id; | |
11823 | ||
11824 | begin | |
2fa9443e | 11825 | Ada_2005_Pragma; |
ac9e9918 RD |
11826 | Check_Arg_Count (1); |
11827 | Check_No_Identifiers; | |
11828 | Check_Arg_Is_Identifier (Arg1); | |
11829 | Check_Arg_Is_Local_Name (Arg1); | |
11830 | Check_First_Subtype (Arg1); | |
0f1a6a0b | 11831 | Ent := Entity (Get_Pragma_Arg (Arg1)); |
ac9e9918 | 11832 | |
c3ad80f0 TQ |
11833 | if not (Is_Private_Type (Ent) |
11834 | or else | |
11835 | Is_Protected_Type (Ent) | |
11836 | or else | |
11837 | (Is_Generic_Type (Ent) and then Is_Derived_Type (Ent))) | |
470cd9e9 | 11838 | then |
ac9e9918 | 11839 | Error_Pragma_Arg |
c3ad80f0 TQ |
11840 | ("pragma % can only be applied to private, formal derived or " |
11841 | & "protected type", | |
470cd9e9 | 11842 | Arg1); |
ac9e9918 RD |
11843 | end if; |
11844 | ||
470cd9e9 RD |
11845 | -- Give an error if the pragma is applied to a protected type that |
11846 | -- does not qualify (due to having entries, or due to components | |
11847 | -- that do not qualify). | |
11848 | ||
11849 | if Is_Protected_Type (Ent) | |
11850 | and then not Has_Preelaborable_Initialization (Ent) | |
11851 | then | |
11852 | Error_Msg_N | |
11853 | ("protected type & does not have preelaborable " & | |
11854 | "initialization", Ent); | |
11855 | ||
11856 | -- Otherwise mark the type as definitely having preelaborable | |
11857 | -- initialization. | |
11858 | ||
11859 | else | |
11860 | Set_Known_To_Have_Preelab_Init (Ent); | |
11861 | end if; | |
c690a2ec RD |
11862 | |
11863 | if Has_Pragma_Preelab_Init (Ent) | |
11864 | and then Warn_On_Redundant_Constructs | |
11865 | then | |
11866 | Error_Pragma ("?duplicate pragma%!"); | |
11867 | else | |
11868 | Set_Has_Pragma_Preelab_Init (Ent); | |
11869 | end if; | |
ac9e9918 RD |
11870 | end Preelab_Init; |
11871 | ||
59e5fbe0 RD |
11872 | -------------------- |
11873 | -- Persistent_BSS -- | |
11874 | -------------------- | |
fbf5a39b | 11875 | |
2b3d67a5 AC |
11876 | -- pragma Persistent_BSS [(object_NAME)]; |
11877 | ||
59e5fbe0 | 11878 | when Pragma_Persistent_BSS => Persistent_BSS : declare |
fbf5a39b AC |
11879 | Decl : Node_Id; |
11880 | Ent : Entity_Id; | |
59e5fbe0 | 11881 | Prag : Node_Id; |
fbf5a39b AC |
11882 | |
11883 | begin | |
11884 | GNAT_Pragma; | |
59e5fbe0 | 11885 | Check_At_Most_N_Arguments (1); |
2e071734 | 11886 | |
59e5fbe0 | 11887 | -- Case of application to specific object (one argument) |
fbf5a39b | 11888 | |
59e5fbe0 RD |
11889 | if Arg_Count = 1 then |
11890 | Check_Arg_Is_Library_Level_Local_Name (Arg1); | |
fbf5a39b | 11891 | |
0f1a6a0b AC |
11892 | if not Is_Entity_Name (Get_Pragma_Arg (Arg1)) |
11893 | or else not | |
11894 | Ekind_In (Entity (Get_Pragma_Arg (Arg1)), E_Variable, | |
11895 | E_Constant) | |
59e5fbe0 RD |
11896 | then |
11897 | Error_Pragma_Arg ("pragma% only applies to objects", Arg1); | |
11898 | end if; | |
fbf5a39b | 11899 | |
0f1a6a0b | 11900 | Ent := Entity (Get_Pragma_Arg (Arg1)); |
59e5fbe0 | 11901 | Decl := Parent (Ent); |
fbf5a39b | 11902 | |
59e5fbe0 RD |
11903 | if Rep_Item_Too_Late (Ent, N) then |
11904 | return; | |
11905 | end if; | |
fbf5a39b | 11906 | |
59e5fbe0 RD |
11907 | if Present (Expression (Decl)) then |
11908 | Error_Pragma_Arg | |
11909 | ("object for pragma% cannot have initialization", Arg1); | |
11910 | end if; | |
fbf5a39b | 11911 | |
59e5fbe0 RD |
11912 | if not Is_Potentially_Persistent_Type (Etype (Ent)) then |
11913 | Error_Pragma_Arg | |
11914 | ("object type for pragma% is not potentially persistent", | |
11915 | Arg1); | |
fbf5a39b AC |
11916 | end if; |
11917 | ||
0f1a6a0b AC |
11918 | Check_Duplicate_Pragma (Ent); |
11919 | ||
eaba57fb RD |
11920 | Prag := |
11921 | Make_Linker_Section_Pragma | |
11922 | (Ent, Sloc (N), ".persistent.bss"); | |
11923 | Insert_After (N, Prag); | |
11924 | Analyze (Prag); | |
59e5fbe0 RD |
11925 | |
11926 | -- Case of use as configuration pragma with no arguments | |
11927 | ||
11928 | else | |
11929 | Check_Valid_Configuration_Pragma; | |
11930 | Persistent_BSS_Mode := True; | |
11931 | end if; | |
11932 | end Persistent_BSS; | |
fbf5a39b | 11933 | |
a30a01fe RD |
11934 | ------------- |
11935 | -- Polling -- | |
11936 | ------------- | |
11937 | ||
11938 | -- pragma Polling (ON | OFF); | |
11939 | ||
11940 | when Pragma_Polling => | |
11941 | GNAT_Pragma; | |
11942 | Check_Arg_Count (1); | |
11943 | Check_No_Identifiers; | |
11944 | Check_Arg_Is_One_Of (Arg1, Name_On, Name_Off); | |
0f1a6a0b | 11945 | Polling_Required := (Chars (Get_Pragma_Arg (Arg1)) = Name_On); |
a30a01fe | 11946 | |
21d27997 RD |
11947 | ------------------- |
11948 | -- Postcondition -- | |
11949 | ------------------- | |
11950 | ||
15d8a51d AC |
11951 | -- pragma Postcondition ([Check =>] Boolean_EXPRESSION |
11952 | -- [,[Message =>] String_EXPRESSION]); | |
21d27997 RD |
11953 | |
11954 | when Pragma_Postcondition => Postcondition : declare | |
11955 | In_Body : Boolean; | |
11956 | pragma Warnings (Off, In_Body); | |
11957 | ||
11958 | begin | |
11959 | GNAT_Pragma; | |
11960 | Check_At_Least_N_Arguments (1); | |
11961 | Check_At_Most_N_Arguments (2); | |
11962 | Check_Optional_Identifier (Arg1, Name_Check); | |
11963 | ||
11964 | -- All we need to do here is call the common check procedure, | |
11965 | -- the remainder of the processing is found in Sem_Ch6/Sem_Ch7. | |
11966 | ||
11967 | Check_Precondition_Postcondition (In_Body); | |
11968 | end Postcondition; | |
11969 | ||
11970 | ------------------ | |
11971 | -- Precondition -- | |
11972 | ------------------ | |
11973 | ||
15d8a51d AC |
11974 | -- pragma Precondition ([Check =>] Boolean_EXPRESSION |
11975 | -- [,[Message =>] String_EXPRESSION]); | |
21d27997 RD |
11976 | |
11977 | when Pragma_Precondition => Precondition : declare | |
11978 | In_Body : Boolean; | |
11979 | ||
11980 | begin | |
11981 | GNAT_Pragma; | |
11982 | Check_At_Least_N_Arguments (1); | |
11983 | Check_At_Most_N_Arguments (2); | |
11984 | Check_Optional_Identifier (Arg1, Name_Check); | |
21d27997 RD |
11985 | Check_Precondition_Postcondition (In_Body); |
11986 | ||
fad0600d AC |
11987 | -- If in spec, nothing more to do. If in body, then we convert the |
11988 | -- pragma to pragma Check (Precondition, cond [, msg]). Note we do | |
11989 | -- this whether or not precondition checks are enabled. That works | |
3f92c93b AC |
11990 | -- fine since pragma Check will do this check, and will also |
11991 | -- analyze the condition itself in the proper context. | |
21d27997 RD |
11992 | |
11993 | if In_Body then | |
21d27997 RD |
11994 | Rewrite (N, |
11995 | Make_Pragma (Loc, | |
11996 | Chars => Name_Check, | |
11997 | Pragma_Argument_Associations => New_List ( | |
11998 | Make_Pragma_Argument_Association (Loc, | |
7675ad4f | 11999 | Expression => Make_Identifier (Loc, Name_Precondition)), |
21d27997 RD |
12000 | |
12001 | Make_Pragma_Argument_Association (Sloc (Arg1), | |
12002 | Expression => Relocate_Node (Get_Pragma_Arg (Arg1)))))); | |
12003 | ||
12004 | if Arg_Count = 2 then | |
12005 | Append_To (Pragma_Argument_Associations (N), | |
12006 | Make_Pragma_Argument_Association (Sloc (Arg2), | |
12007 | Expression => Relocate_Node (Get_Pragma_Arg (Arg2)))); | |
12008 | end if; | |
12009 | ||
12010 | Analyze (N); | |
12011 | end if; | |
12012 | end Precondition; | |
12013 | ||
fd0ff1cf RD |
12014 | --------------- |
12015 | -- Predicate -- | |
12016 | --------------- | |
12017 | ||
12018 | -- pragma Predicate | |
47e11d08 AC |
12019 | -- ([Entity =>] type_LOCAL_NAME, |
12020 | -- [Check =>] EXPRESSION); | |
fd0ff1cf RD |
12021 | |
12022 | when Pragma_Predicate => Predicate : declare | |
12023 | Type_Id : Node_Id; | |
12024 | Typ : Entity_Id; | |
12025 | ||
12026 | Discard : Boolean; | |
12027 | pragma Unreferenced (Discard); | |
12028 | ||
12029 | begin | |
12030 | GNAT_Pragma; | |
4818e7b9 | 12031 | Check_Arg_Count (2); |
fd0ff1cf RD |
12032 | Check_Optional_Identifier (Arg1, Name_Entity); |
12033 | Check_Optional_Identifier (Arg2, Name_Check); | |
12034 | ||
fd0ff1cf RD |
12035 | Check_Arg_Is_Local_Name (Arg1); |
12036 | ||
12037 | Type_Id := Get_Pragma_Arg (Arg1); | |
12038 | Find_Type (Type_Id); | |
12039 | Typ := Entity (Type_Id); | |
12040 | ||
12041 | if Typ = Any_Type then | |
12042 | return; | |
12043 | end if; | |
12044 | ||
12045 | -- The remaining processing is simply to link the pragma on to | |
12046 | -- the rep item chain, for processing when the type is frozen. | |
4818e7b9 RD |
12047 | -- This is accomplished by a call to Rep_Item_Too_Late. We also |
12048 | -- mark the type as having predicates. | |
fd0ff1cf | 12049 | |
4818e7b9 | 12050 | Set_Has_Predicates (Typ); |
fd0ff1cf RD |
12051 | Discard := Rep_Item_Too_Late (Typ, N, FOnly => True); |
12052 | end Predicate; | |
12053 | ||
996ae0b0 RK |
12054 | ------------------ |
12055 | -- Preelaborate -- | |
12056 | ------------------ | |
12057 | ||
12058 | -- pragma Preelaborate [(library_unit_NAME)]; | |
12059 | ||
12060 | -- Set the flag Is_Preelaborated of program unit name entity | |
12061 | ||
12062 | when Pragma_Preelaborate => Preelaborate : declare | |
fbf5a39b AC |
12063 | Pa : constant Node_Id := Parent (N); |
12064 | Pk : constant Node_Kind := Nkind (Pa); | |
996ae0b0 | 12065 | Ent : Entity_Id; |
996ae0b0 RK |
12066 | |
12067 | begin | |
12068 | Check_Ada_83_Warning; | |
12069 | Check_Valid_Library_Unit_Pragma; | |
12070 | ||
12071 | if Nkind (N) = N_Null_Statement then | |
12072 | return; | |
12073 | end if; | |
12074 | ||
12075 | Ent := Find_Lib_Unit_Name; | |
0f1a6a0b | 12076 | Check_Duplicate_Pragma (Ent); |
996ae0b0 RK |
12077 | |
12078 | -- This filters out pragmas inside generic parent then | |
12079 | -- show up inside instantiation | |
12080 | ||
12081 | if Present (Ent) | |
12082 | and then not (Pk = N_Package_Specification | |
eaba57fb | 12083 | and then Present (Generic_Parent (Pa))) |
996ae0b0 RK |
12084 | then |
12085 | if not Debug_Flag_U then | |
eaba57fb RD |
12086 | Set_Is_Preelaborated (Ent); |
12087 | Set_Suppress_Elaboration_Warnings (Ent); | |
996ae0b0 RK |
12088 | end if; |
12089 | end if; | |
12090 | end Preelaborate; | |
12091 | ||
59e5fbe0 RD |
12092 | --------------------- |
12093 | -- Preelaborate_05 -- | |
12094 | --------------------- | |
12095 | ||
12096 | -- pragma Preelaborate_05 [(library_unit_NAME)]; | |
12097 | ||
12098 | -- This pragma is useable only in GNAT_Mode, where it is used like | |
12099 | -- pragma Preelaborate but it is only effective in Ada 2005 mode | |
12100 | -- (otherwise it is ignored). This is used to implement AI-362 which | |
12101 | -- recategorizes some run-time packages in Ada 2005 mode. | |
12102 | ||
12103 | when Pragma_Preelaborate_05 => Preelaborate_05 : declare | |
12104 | Ent : Entity_Id; | |
12105 | ||
12106 | begin | |
12107 | GNAT_Pragma; | |
12108 | Check_Valid_Library_Unit_Pragma; | |
12109 | ||
12110 | if not GNAT_Mode then | |
12111 | Error_Pragma ("pragma% only available in GNAT mode"); | |
12112 | end if; | |
12113 | ||
12114 | if Nkind (N) = N_Null_Statement then | |
12115 | return; | |
12116 | end if; | |
12117 | ||
12118 | -- This is one of the few cases where we need to test the value of | |
12119 | -- Ada_Version_Explicit rather than Ada_Version (which is always | |
dbe945f1 | 12120 | -- set to Ada_2012 in a predefined unit), we need to know the |
59e5fbe0 RD |
12121 | -- explicit version set to know if this pragma is active. |
12122 | ||
0791fbe9 | 12123 | if Ada_Version_Explicit >= Ada_2005 then |
59e5fbe0 RD |
12124 | Ent := Find_Lib_Unit_Name; |
12125 | Set_Is_Preelaborated (Ent); | |
12126 | Set_Suppress_Elaboration_Warnings (Ent); | |
12127 | end if; | |
12128 | end Preelaborate_05; | |
12129 | ||
996ae0b0 RK |
12130 | -------------- |
12131 | -- Priority -- | |
12132 | -------------- | |
12133 | ||
12134 | -- pragma Priority (EXPRESSION); | |
12135 | ||
12136 | when Pragma_Priority => Priority : declare | |
12137 | P : constant Node_Id := Parent (N); | |
12138 | Arg : Node_Id; | |
12139 | ||
12140 | begin | |
12141 | Check_No_Identifiers; | |
12142 | Check_Arg_Count (1); | |
12143 | ||
996ae0b0 RK |
12144 | -- Subprogram case |
12145 | ||
12146 | if Nkind (P) = N_Subprogram_Body then | |
12147 | Check_In_Main_Program; | |
12148 | ||
0f1a6a0b | 12149 | Arg := Get_Pragma_Arg (Arg1); |
fbf5a39b AC |
12150 | Analyze_And_Resolve (Arg, Standard_Integer); |
12151 | ||
996ae0b0 RK |
12152 | -- Must be static |
12153 | ||
12154 | if not Is_Static_Expression (Arg) then | |
fbf5a39b AC |
12155 | Flag_Non_Static_Expr |
12156 | ("main subprogram priority is not static!", Arg); | |
12157 | raise Pragma_Exit; | |
996ae0b0 RK |
12158 | |
12159 | -- If constraint error, then we already signalled an error | |
12160 | ||
12161 | elsif Raises_Constraint_Error (Arg) then | |
12162 | null; | |
12163 | ||
12164 | -- Otherwise check in range | |
12165 | ||
12166 | else | |
12167 | declare | |
12168 | Val : constant Uint := Expr_Value (Arg); | |
12169 | ||
12170 | begin | |
12171 | if Val < 0 | |
12172 | or else Val > Expr_Value (Expression | |
12173 | (Parent (RTE (RE_Max_Priority)))) | |
12174 | then | |
12175 | Error_Pragma_Arg | |
12176 | ("main subprogram priority is out of range", Arg1); | |
12177 | end if; | |
12178 | end; | |
12179 | end if; | |
12180 | ||
12181 | Set_Main_Priority | |
874a0341 RD |
12182 | (Current_Sem_Unit, UI_To_Int (Expr_Value (Arg))); |
12183 | ||
12184 | -- Load an arbitrary entity from System.Tasking to make sure | |
12185 | -- this package is implicitly with'ed, since we need to have | |
12186 | -- the tasking run-time active for the pragma Priority to have | |
12187 | -- any effect. | |
12188 | ||
12189 | declare | |
12190 | Discard : Entity_Id; | |
12191 | pragma Warnings (Off, Discard); | |
12192 | begin | |
12193 | Discard := RTE (RE_Task_List); | |
12194 | end; | |
996ae0b0 RK |
12195 | |
12196 | -- Task or Protected, must be of type Integer | |
12197 | ||
d7ba4df4 | 12198 | elsif Nkind_In (P, N_Protected_Definition, N_Task_Definition) then |
0f1a6a0b | 12199 | Arg := Get_Pragma_Arg (Arg1); |
fbf5a39b AC |
12200 | |
12201 | -- The expression must be analyzed in the special manner | |
12202 | -- described in "Handling of Default and Per-Object | |
12203 | -- Expressions" in sem.ads. | |
12204 | ||
21d27997 | 12205 | Preanalyze_Spec_Expression (Arg, Standard_Integer); |
fbf5a39b AC |
12206 | |
12207 | if not Is_Static_Expression (Arg) then | |
12208 | Check_Restriction (Static_Priorities, Arg); | |
996ae0b0 RK |
12209 | end if; |
12210 | ||
12211 | -- Anything else is incorrect | |
12212 | ||
12213 | else | |
12214 | Pragma_Misplaced; | |
12215 | end if; | |
12216 | ||
c775c209 | 12217 | if Has_Pragma_Priority (P) then |
996ae0b0 RK |
12218 | Error_Pragma ("duplicate pragma% not allowed"); |
12219 | else | |
c775c209 | 12220 | Set_Has_Pragma_Priority (P, True); |
996ae0b0 | 12221 | |
d7ba4df4 | 12222 | if Nkind_In (P, N_Protected_Definition, N_Task_Definition) then |
996ae0b0 RK |
12223 | Record_Rep_Item (Defining_Identifier (Parent (P)), N); |
12224 | -- exp_ch9 should use this ??? | |
12225 | end if; | |
12226 | end if; | |
996ae0b0 RK |
12227 | end Priority; |
12228 | ||
ac9e9918 RD |
12229 | ----------------------------------- |
12230 | -- Priority_Specific_Dispatching -- | |
12231 | ----------------------------------- | |
12232 | ||
12233 | -- pragma Priority_Specific_Dispatching ( | |
12234 | -- policy_IDENTIFIER, | |
12235 | -- first_priority_EXPRESSION, | |
12236 | -- last_priority_EXPRESSION); | |
12237 | ||
12238 | when Pragma_Priority_Specific_Dispatching => | |
12239 | Priority_Specific_Dispatching : declare | |
12240 | Prio_Id : constant Entity_Id := RTE (RE_Any_Priority); | |
12241 | -- This is the entity System.Any_Priority; | |
12242 | ||
12243 | DP : Character; | |
12244 | Lower_Bound : Node_Id; | |
12245 | Upper_Bound : Node_Id; | |
12246 | Lower_Val : Uint; | |
12247 | Upper_Val : Uint; | |
12248 | ||
12249 | begin | |
2fa9443e | 12250 | Ada_2005_Pragma; |
ac9e9918 RD |
12251 | Check_Arg_Count (3); |
12252 | Check_No_Identifiers; | |
12253 | Check_Arg_Is_Task_Dispatching_Policy (Arg1); | |
12254 | Check_Valid_Configuration_Pragma; | |
0f1a6a0b | 12255 | Get_Name_String (Chars (Get_Pragma_Arg (Arg1))); |
ac9e9918 RD |
12256 | DP := Fold_Upper (Name_Buffer (1)); |
12257 | ||
0f1a6a0b | 12258 | Lower_Bound := Get_Pragma_Arg (Arg2); |
ac9e9918 RD |
12259 | Check_Arg_Is_Static_Expression (Lower_Bound, Standard_Integer); |
12260 | Lower_Val := Expr_Value (Lower_Bound); | |
12261 | ||
0f1a6a0b | 12262 | Upper_Bound := Get_Pragma_Arg (Arg3); |
ac9e9918 RD |
12263 | Check_Arg_Is_Static_Expression (Upper_Bound, Standard_Integer); |
12264 | Upper_Val := Expr_Value (Upper_Bound); | |
12265 | ||
12266 | -- It is not allowed to use Task_Dispatching_Policy and | |
12267 | -- Priority_Specific_Dispatching in the same partition. | |
12268 | ||
12269 | if Task_Dispatching_Policy /= ' ' then | |
12270 | Error_Msg_Sloc := Task_Dispatching_Policy_Sloc; | |
12271 | Error_Pragma | |
12272 | ("pragma% incompatible with Task_Dispatching_Policy#"); | |
12273 | ||
12274 | -- Check lower bound in range | |
12275 | ||
12276 | elsif Lower_Val < Expr_Value (Type_Low_Bound (Prio_Id)) | |
12277 | or else | |
12278 | Lower_Val > Expr_Value (Type_High_Bound (Prio_Id)) | |
12279 | then | |
12280 | Error_Pragma_Arg | |
12281 | ("first_priority is out of range", Arg2); | |
12282 | ||
12283 | -- Check upper bound in range | |
12284 | ||
12285 | elsif Upper_Val < Expr_Value (Type_Low_Bound (Prio_Id)) | |
12286 | or else | |
12287 | Upper_Val > Expr_Value (Type_High_Bound (Prio_Id)) | |
12288 | then | |
12289 | Error_Pragma_Arg | |
12290 | ("last_priority is out of range", Arg3); | |
12291 | ||
12292 | -- Check that the priority range is valid | |
12293 | ||
12294 | elsif Lower_Val > Upper_Val then | |
12295 | Error_Pragma | |
12296 | ("last_priority_expression must be greater than" & | |
12297 | " or equal to first_priority_expression"); | |
12298 | ||
12299 | -- Store the new policy, but always preserve System_Location since | |
12300 | -- we like the error message with the run-time name. | |
12301 | ||
12302 | else | |
12303 | -- Check overlapping in the priority ranges specified in other | |
12304 | -- Priority_Specific_Dispatching pragmas within the same | |
12305 | -- partition. We can only check those we know about! | |
12306 | ||
12307 | for J in | |
12308 | Specific_Dispatching.First .. Specific_Dispatching.Last | |
12309 | loop | |
12310 | if Specific_Dispatching.Table (J).First_Priority in | |
12311 | UI_To_Int (Lower_Val) .. UI_To_Int (Upper_Val) | |
12312 | or else Specific_Dispatching.Table (J).Last_Priority in | |
12313 | UI_To_Int (Lower_Val) .. UI_To_Int (Upper_Val) | |
12314 | then | |
12315 | Error_Msg_Sloc := | |
12316 | Specific_Dispatching.Table (J).Pragma_Loc; | |
c690a2ec RD |
12317 | Error_Pragma |
12318 | ("priority range overlaps with " | |
12319 | & "Priority_Specific_Dispatching#"); | |
ac9e9918 RD |
12320 | end if; |
12321 | end loop; | |
12322 | ||
12323 | -- The use of Priority_Specific_Dispatching is incompatible | |
12324 | -- with Task_Dispatching_Policy. | |
12325 | ||
12326 | if Task_Dispatching_Policy /= ' ' then | |
12327 | Error_Msg_Sloc := Task_Dispatching_Policy_Sloc; | |
c690a2ec RD |
12328 | Error_Pragma |
12329 | ("Priority_Specific_Dispatching incompatible " | |
12330 | & "with Task_Dispatching_Policy#"); | |
ac9e9918 RD |
12331 | end if; |
12332 | ||
12333 | -- The use of Priority_Specific_Dispatching forces ceiling | |
12334 | -- locking policy. | |
12335 | ||
12336 | if Locking_Policy /= ' ' and then Locking_Policy /= 'C' then | |
12337 | Error_Msg_Sloc := Locking_Policy_Sloc; | |
c690a2ec RD |
12338 | Error_Pragma |
12339 | ("Priority_Specific_Dispatching incompatible " | |
12340 | & "with Locking_Policy#"); | |
ac9e9918 RD |
12341 | |
12342 | -- Set the Ceiling_Locking policy, but preserve System_Location | |
12343 | -- since we like the error message with the run time name. | |
12344 | ||
12345 | else | |
12346 | Locking_Policy := 'C'; | |
12347 | ||
12348 | if Locking_Policy_Sloc /= System_Location then | |
12349 | Locking_Policy_Sloc := Loc; | |
12350 | end if; | |
12351 | end if; | |
12352 | ||
12353 | -- Add entry in the table | |
12354 | ||
12355 | Specific_Dispatching.Append | |
12356 | ((Dispatching_Policy => DP, | |
12357 | First_Priority => UI_To_Int (Lower_Val), | |
12358 | Last_Priority => UI_To_Int (Upper_Val), | |
12359 | Pragma_Loc => Loc)); | |
12360 | end if; | |
12361 | end Priority_Specific_Dispatching; | |
12362 | ||
2e071734 AC |
12363 | ------------- |
12364 | -- Profile -- | |
12365 | ------------- | |
12366 | ||
12367 | -- pragma Profile (profile_IDENTIFIER); | |
12368 | ||
21d27997 | 12369 | -- profile_IDENTIFIER => Restricted | Ravenscar |
2e071734 AC |
12370 | |
12371 | when Pragma_Profile => | |
2fa9443e | 12372 | Ada_2005_Pragma; |
2e071734 AC |
12373 | Check_Arg_Count (1); |
12374 | Check_Valid_Configuration_Pragma; | |
12375 | Check_No_Identifiers; | |
2e071734 AC |
12376 | |
12377 | declare | |
12378 | Argx : constant Node_Id := Get_Pragma_Arg (Arg1); | |
df177175 | 12379 | |
2e071734 AC |
12380 | begin |
12381 | if Chars (Argx) = Name_Ravenscar then | |
8a36a0cc | 12382 | Set_Ravenscar_Profile (N); |
df177175 | 12383 | |
cc335f43 | 12384 | elsif Chars (Argx) = Name_Restricted then |
23e6615e | 12385 | Set_Profile_Restrictions |
df177175 RD |
12386 | (Restricted, |
12387 | N, Warn => Treat_Restrictions_As_Warnings); | |
12388 | ||
12389 | elsif Chars (Argx) = Name_No_Implementation_Extensions then | |
12390 | Set_Profile_Restrictions | |
12391 | (No_Implementation_Extensions, | |
12392 | N, Warn => Treat_Restrictions_As_Warnings); | |
12393 | ||
cc335f43 AC |
12394 | else |
12395 | Error_Pragma_Arg ("& is not a valid profile", Argx); | |
12396 | end if; | |
12397 | end; | |
12398 | ||
12399 | ---------------------- | |
12400 | -- Profile_Warnings -- | |
12401 | ---------------------- | |
12402 | ||
12403 | -- pragma Profile_Warnings (profile_IDENTIFIER); | |
12404 | ||
21d27997 | 12405 | -- profile_IDENTIFIER => Restricted | Ravenscar |
cc335f43 AC |
12406 | |
12407 | when Pragma_Profile_Warnings => | |
12408 | GNAT_Pragma; | |
12409 | Check_Arg_Count (1); | |
12410 | Check_Valid_Configuration_Pragma; | |
12411 | Check_No_Identifiers; | |
12412 | ||
12413 | declare | |
12414 | Argx : constant Node_Id := Get_Pragma_Arg (Arg1); | |
df177175 | 12415 | |
cc335f43 AC |
12416 | begin |
12417 | if Chars (Argx) = Name_Ravenscar then | |
12418 | Set_Profile_Restrictions (Ravenscar, N, Warn => True); | |
df177175 | 12419 | |
cc335f43 AC |
12420 | elsif Chars (Argx) = Name_Restricted then |
12421 | Set_Profile_Restrictions (Restricted, N, Warn => True); | |
df177175 RD |
12422 | |
12423 | elsif Chars (Argx) = Name_No_Implementation_Extensions then | |
12424 | Set_Profile_Restrictions | |
12425 | (No_Implementation_Extensions, N, Warn => True); | |
12426 | ||
2e071734 AC |
12427 | else |
12428 | Error_Pragma_Arg ("& is not a valid profile", Argx); | |
12429 | end if; | |
12430 | end; | |
12431 | ||
996ae0b0 RK |
12432 | -------------------------- |
12433 | -- Propagate_Exceptions -- | |
12434 | -------------------------- | |
12435 | ||
12436 | -- pragma Propagate_Exceptions; | |
12437 | ||
57193e09 TQ |
12438 | -- Note: this pragma is obsolete and has no effect |
12439 | ||
996ae0b0 RK |
12440 | when Pragma_Propagate_Exceptions => |
12441 | GNAT_Pragma; | |
12442 | Check_Arg_Count (0); | |
12443 | ||
12444 | if In_Extended_Main_Source_Unit (N) then | |
12445 | Propagate_Exceptions := True; | |
12446 | end if; | |
12447 | ||
12448 | ------------------ | |
12449 | -- Psect_Object -- | |
12450 | ------------------ | |
12451 | ||
12452 | -- pragma Psect_Object ( | |
12453 | -- [Internal =>] LOCAL_NAME, | |
12454 | -- [, [External =>] EXTERNAL_SYMBOL] | |
12455 | -- [, [Size =>] EXTERNAL_SYMBOL]); | |
12456 | ||
12457 | when Pragma_Psect_Object | Pragma_Common_Object => | |
12458 | Psect_Object : declare | |
12459 | Args : Args_List (1 .. 3); | |
fbf5a39b | 12460 | Names : constant Name_List (1 .. 3) := ( |
996ae0b0 RK |
12461 | Name_Internal, |
12462 | Name_External, | |
12463 | Name_Size); | |
12464 | ||
12465 | Internal : Node_Id renames Args (1); | |
12466 | External : Node_Id renames Args (2); | |
12467 | Size : Node_Id renames Args (3); | |
12468 | ||
1d571f3b | 12469 | Def_Id : Entity_Id; |
996ae0b0 RK |
12470 | |
12471 | procedure Check_Too_Long (Arg : Node_Id); | |
12472 | -- Posts message if the argument is an identifier with more | |
12473 | -- than 31 characters, or a string literal with more than | |
12474 | -- 31 characters, and we are operating under VMS | |
12475 | ||
07fc65c4 GB |
12476 | -------------------- |
12477 | -- Check_Too_Long -- | |
12478 | -------------------- | |
12479 | ||
996ae0b0 | 12480 | procedure Check_Too_Long (Arg : Node_Id) is |
fbf5a39b | 12481 | X : constant Node_Id := Original_Node (Arg); |
996ae0b0 RK |
12482 | |
12483 | begin | |
d7ba4df4 | 12484 | if not Nkind_In (X, N_String_Literal, N_Identifier) then |
996ae0b0 RK |
12485 | Error_Pragma_Arg |
12486 | ("inappropriate argument for pragma %", Arg); | |
12487 | end if; | |
12488 | ||
12489 | if OpenVMS_On_Target then | |
12490 | if (Nkind (X) = N_String_Literal | |
12491 | and then String_Length (Strval (X)) > 31) | |
12492 | or else | |
12493 | (Nkind (X) = N_Identifier | |
12494 | and then Length_Of_Name (Chars (X)) > 31) | |
12495 | then | |
12496 | Error_Pragma_Arg | |
12497 | ("argument for pragma % is longer than 31 characters", | |
12498 | Arg); | |
12499 | end if; | |
12500 | end if; | |
12501 | end Check_Too_Long; | |
12502 | ||
12503 | -- Start of processing for Common_Object/Psect_Object | |
12504 | ||
12505 | begin | |
12506 | GNAT_Pragma; | |
12507 | Gather_Associations (Names, Args); | |
12508 | Process_Extended_Import_Export_Internal_Arg (Internal); | |
12509 | ||
1d571f3b | 12510 | Def_Id := Entity (Internal); |
996ae0b0 | 12511 | |
8a95f4e8 | 12512 | if not Ekind_In (Def_Id, E_Constant, E_Variable) then |
996ae0b0 RK |
12513 | Error_Pragma_Arg |
12514 | ("pragma% must designate an object", Internal); | |
12515 | end if; | |
12516 | ||
1d571f3b | 12517 | Check_Too_Long (Internal); |
996ae0b0 RK |
12518 | |
12519 | if Is_Imported (Def_Id) or else Is_Exported (Def_Id) then | |
ed2233dc | 12520 | Error_Pragma_Arg |
996ae0b0 | 12521 | ("cannot use pragma% for imported/exported object", |
1d571f3b | 12522 | Internal); |
996ae0b0 RK |
12523 | end if; |
12524 | ||
1d571f3b | 12525 | if Is_Concurrent_Type (Etype (Internal)) then |
ed2233dc | 12526 | Error_Pragma_Arg |
996ae0b0 | 12527 | ("cannot specify pragma % for task/protected object", |
1d571f3b | 12528 | Internal); |
996ae0b0 RK |
12529 | end if; |
12530 | ||
1d571f3b AC |
12531 | if Has_Rep_Pragma (Def_Id, Name_Common_Object) |
12532 | or else | |
12533 | Has_Rep_Pragma (Def_Id, Name_Psect_Object) | |
12534 | then | |
12535 | Error_Msg_N ("?duplicate Common/Psect_Object pragma", N); | |
996ae0b0 RK |
12536 | end if; |
12537 | ||
12538 | if Ekind (Def_Id) = E_Constant then | |
ed2233dc | 12539 | Error_Pragma_Arg |
1d571f3b | 12540 | ("cannot specify pragma % for a constant", Internal); |
996ae0b0 RK |
12541 | end if; |
12542 | ||
1d571f3b | 12543 | if Is_Record_Type (Etype (Internal)) then |
996ae0b0 RK |
12544 | declare |
12545 | Ent : Entity_Id; | |
12546 | Decl : Entity_Id; | |
12547 | ||
12548 | begin | |
1d571f3b | 12549 | Ent := First_Entity (Etype (Internal)); |
996ae0b0 RK |
12550 | while Present (Ent) loop |
12551 | Decl := Declaration_Node (Ent); | |
12552 | ||
12553 | if Ekind (Ent) = E_Component | |
12554 | and then Nkind (Decl) = N_Component_Declaration | |
12555 | and then Present (Expression (Decl)) | |
fbf5a39b | 12556 | and then Warn_On_Export_Import |
996ae0b0 RK |
12557 | then |
12558 | Error_Msg_N | |
1d571f3b | 12559 | ("?object for pragma % has defaults", Internal); |
996ae0b0 RK |
12560 | exit; |
12561 | ||
12562 | else | |
12563 | Next_Entity (Ent); | |
12564 | end if; | |
12565 | end loop; | |
12566 | end; | |
12567 | end if; | |
12568 | ||
12569 | if Present (Size) then | |
12570 | Check_Too_Long (Size); | |
12571 | end if; | |
12572 | ||
996ae0b0 | 12573 | if Present (External) then |
5f3ab6fb | 12574 | Check_Arg_Is_External_Name (External); |
996ae0b0 | 12575 | Check_Too_Long (External); |
996ae0b0 RK |
12576 | end if; |
12577 | ||
1d571f3b | 12578 | -- If all error tests pass, link pragma on to the rep item chain |
fbf5a39b | 12579 | |
1d571f3b | 12580 | Record_Rep_Item (Def_Id, N); |
996ae0b0 RK |
12581 | end Psect_Object; |
12582 | ||
12583 | ---------- | |
12584 | -- Pure -- | |
12585 | ---------- | |
12586 | ||
12587 | -- pragma Pure [(library_unit_NAME)]; | |
12588 | ||
12589 | when Pragma_Pure => Pure : declare | |
12590 | Ent : Entity_Id; | |
59e5fbe0 | 12591 | |
996ae0b0 RK |
12592 | begin |
12593 | Check_Ada_83_Warning; | |
12594 | Check_Valid_Library_Unit_Pragma; | |
12595 | ||
12596 | if Nkind (N) = N_Null_Statement then | |
12597 | return; | |
12598 | end if; | |
12599 | ||
12600 | Ent := Find_Lib_Unit_Name; | |
12601 | Set_Is_Pure (Ent); | |
57193e09 | 12602 | Set_Has_Pragma_Pure (Ent); |
996ae0b0 RK |
12603 | Set_Suppress_Elaboration_Warnings (Ent); |
12604 | end Pure; | |
12605 | ||
59e5fbe0 RD |
12606 | ------------- |
12607 | -- Pure_05 -- | |
12608 | ------------- | |
12609 | ||
12610 | -- pragma Pure_05 [(library_unit_NAME)]; | |
12611 | ||
12612 | -- This pragma is useable only in GNAT_Mode, where it is used like | |
12613 | -- pragma Pure but it is only effective in Ada 2005 mode (otherwise | |
12614 | -- it is ignored). It may be used after a pragma Preelaborate, in | |
12615 | -- which case it overrides the effect of the pragma Preelaborate. | |
12616 | -- This is used to implement AI-362 which recategorizes some run-time | |
12617 | -- packages in Ada 2005 mode. | |
12618 | ||
12619 | when Pragma_Pure_05 => Pure_05 : declare | |
12620 | Ent : Entity_Id; | |
12621 | ||
12622 | begin | |
12623 | GNAT_Pragma; | |
12624 | Check_Valid_Library_Unit_Pragma; | |
12625 | ||
12626 | if not GNAT_Mode then | |
12627 | Error_Pragma ("pragma% only available in GNAT mode"); | |
12628 | end if; | |
d7ba4df4 | 12629 | |
59e5fbe0 RD |
12630 | if Nkind (N) = N_Null_Statement then |
12631 | return; | |
12632 | end if; | |
12633 | ||
12634 | -- This is one of the few cases where we need to test the value of | |
12635 | -- Ada_Version_Explicit rather than Ada_Version (which is always | |
dbe945f1 | 12636 | -- set to Ada_2012 in a predefined unit), we need to know the |
59e5fbe0 RD |
12637 | -- explicit version set to know if this pragma is active. |
12638 | ||
0791fbe9 | 12639 | if Ada_Version_Explicit >= Ada_2005 then |
59e5fbe0 RD |
12640 | Ent := Find_Lib_Unit_Name; |
12641 | Set_Is_Preelaborated (Ent, False); | |
12642 | Set_Is_Pure (Ent); | |
12643 | Set_Suppress_Elaboration_Warnings (Ent); | |
12644 | end if; | |
12645 | end Pure_05; | |
12646 | ||
996ae0b0 RK |
12647 | ------------------- |
12648 | -- Pure_Function -- | |
12649 | ------------------- | |
12650 | ||
12651 | -- pragma Pure_Function ([Entity =>] function_LOCAL_NAME); | |
12652 | ||
12653 | when Pragma_Pure_Function => Pure_Function : declare | |
6e937c1c AC |
12654 | E_Id : Node_Id; |
12655 | E : Entity_Id; | |
12656 | Def_Id : Entity_Id; | |
12657 | Effective : Boolean := False; | |
996ae0b0 RK |
12658 | |
12659 | begin | |
12660 | GNAT_Pragma; | |
12661 | Check_Arg_Count (1); | |
12662 | Check_Optional_Identifier (Arg1, Name_Entity); | |
12663 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 12664 | E_Id := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
12665 | |
12666 | if Error_Posted (E_Id) then | |
12667 | return; | |
12668 | end if; | |
12669 | ||
12670 | -- Loop through homonyms (overloadings) of referenced entity | |
12671 | ||
12672 | E := Entity (E_Id); | |
996ae0b0 | 12673 | |
fbf5a39b AC |
12674 | if Present (E) then |
12675 | loop | |
12676 | Def_Id := Get_Base_Subprogram (E); | |
996ae0b0 | 12677 | |
8a95f4e8 RD |
12678 | if not Ekind_In (Def_Id, E_Function, |
12679 | E_Generic_Function, | |
12680 | E_Operator) | |
fbf5a39b AC |
12681 | then |
12682 | Error_Pragma_Arg | |
12683 | ("pragma% requires a function name", Arg1); | |
12684 | end if; | |
12685 | ||
eaba57fb | 12686 | Set_Is_Pure (Def_Id); |
6e937c1c AC |
12687 | |
12688 | if not Has_Pragma_Pure_Function (Def_Id) then | |
eaba57fb RD |
12689 | Set_Has_Pragma_Pure_Function (Def_Id); |
12690 | Effective := True; | |
6e937c1c | 12691 | end if; |
fbf5a39b | 12692 | |
0f1a6a0b | 12693 | exit when From_Aspect_Specification (N); |
fbf5a39b AC |
12694 | E := Homonym (E); |
12695 | exit when No (E) or else Scope (E) /= Current_Scope; | |
12696 | end loop; | |
6e937c1c | 12697 | |
eaba57fb | 12698 | if not Effective |
6e937c1c AC |
12699 | and then Warn_On_Redundant_Constructs |
12700 | then | |
ed2233dc | 12701 | Error_Msg_NE |
19d846a0 RD |
12702 | ("pragma Pure_Function on& is redundant?", |
12703 | N, Entity (E_Id)); | |
6e937c1c | 12704 | end if; |
fbf5a39b | 12705 | end if; |
996ae0b0 RK |
12706 | end Pure_Function; |
12707 | ||
12708 | -------------------- | |
12709 | -- Queuing_Policy -- | |
12710 | -------------------- | |
12711 | ||
12712 | -- pragma Queuing_Policy (policy_IDENTIFIER); | |
12713 | ||
12714 | when Pragma_Queuing_Policy => declare | |
12715 | QP : Character; | |
12716 | ||
12717 | begin | |
12718 | Check_Ada_83_Warning; | |
12719 | Check_Arg_Count (1); | |
12720 | Check_No_Identifiers; | |
12721 | Check_Arg_Is_Queuing_Policy (Arg1); | |
12722 | Check_Valid_Configuration_Pragma; | |
0f1a6a0b | 12723 | Get_Name_String (Chars (Get_Pragma_Arg (Arg1))); |
996ae0b0 RK |
12724 | QP := Fold_Upper (Name_Buffer (1)); |
12725 | ||
12726 | if Queuing_Policy /= ' ' | |
12727 | and then Queuing_Policy /= QP | |
12728 | then | |
12729 | Error_Msg_Sloc := Queuing_Policy_Sloc; | |
12730 | Error_Pragma ("queuing policy incompatible with policy#"); | |
fbf5a39b | 12731 | |
b3b9865d AC |
12732 | -- Set new policy, but always preserve System_Location since we |
12733 | -- like the error message with the run time name. | |
fbf5a39b | 12734 | |
996ae0b0 RK |
12735 | else |
12736 | Queuing_Policy := QP; | |
fbf5a39b AC |
12737 | |
12738 | if Queuing_Policy_Sloc /= System_Location then | |
12739 | Queuing_Policy_Sloc := Loc; | |
12740 | end if; | |
996ae0b0 RK |
12741 | end if; |
12742 | end; | |
12743 | ||
21d27997 RD |
12744 | ----------------------- |
12745 | -- Relative_Deadline -- | |
12746 | ----------------------- | |
12747 | ||
12748 | -- pragma Relative_Deadline (time_span_EXPRESSION); | |
12749 | ||
12750 | when Pragma_Relative_Deadline => Relative_Deadline : declare | |
12751 | P : constant Node_Id := Parent (N); | |
12752 | Arg : Node_Id; | |
12753 | ||
12754 | begin | |
12755 | Ada_2005_Pragma; | |
12756 | Check_No_Identifiers; | |
12757 | Check_Arg_Count (1); | |
12758 | ||
0f1a6a0b | 12759 | Arg := Get_Pragma_Arg (Arg1); |
21d27997 RD |
12760 | |
12761 | -- The expression must be analyzed in the special manner described | |
12762 | -- in "Handling of Default and Per-Object Expressions" in sem.ads. | |
12763 | ||
12764 | Preanalyze_Spec_Expression (Arg, RTE (RE_Time_Span)); | |
12765 | ||
12766 | -- Subprogram case | |
12767 | ||
12768 | if Nkind (P) = N_Subprogram_Body then | |
12769 | Check_In_Main_Program; | |
12770 | ||
12771 | -- Tasks | |
12772 | ||
12773 | elsif Nkind (P) = N_Task_Definition then | |
12774 | null; | |
12775 | ||
12776 | -- Anything else is incorrect | |
12777 | ||
12778 | else | |
12779 | Pragma_Misplaced; | |
12780 | end if; | |
12781 | ||
12782 | if Has_Relative_Deadline_Pragma (P) then | |
12783 | Error_Pragma ("duplicate pragma% not allowed"); | |
12784 | else | |
12785 | Set_Has_Relative_Deadline_Pragma (P, True); | |
12786 | ||
12787 | if Nkind (P) = N_Task_Definition then | |
12788 | Record_Rep_Item (Defining_Identifier (Parent (P)), N); | |
12789 | end if; | |
12790 | end if; | |
12791 | end Relative_Deadline; | |
12792 | ||
996ae0b0 RK |
12793 | --------------------------- |
12794 | -- Remote_Call_Interface -- | |
12795 | --------------------------- | |
12796 | ||
12797 | -- pragma Remote_Call_Interface [(library_unit_NAME)]; | |
12798 | ||
12799 | when Pragma_Remote_Call_Interface => Remote_Call_Interface : declare | |
12800 | Cunit_Node : Node_Id; | |
12801 | Cunit_Ent : Entity_Id; | |
12802 | K : Node_Kind; | |
12803 | ||
12804 | begin | |
12805 | Check_Ada_83_Warning; | |
12806 | Check_Valid_Library_Unit_Pragma; | |
12807 | ||
12808 | if Nkind (N) = N_Null_Statement then | |
12809 | return; | |
12810 | end if; | |
12811 | ||
12812 | Cunit_Node := Cunit (Current_Sem_Unit); | |
12813 | K := Nkind (Unit (Cunit_Node)); | |
12814 | Cunit_Ent := Cunit_Entity (Current_Sem_Unit); | |
12815 | ||
12816 | if K = N_Package_Declaration | |
12817 | or else K = N_Generic_Package_Declaration | |
12818 | or else K = N_Subprogram_Declaration | |
12819 | or else K = N_Generic_Subprogram_Declaration | |
12820 | or else (K = N_Subprogram_Body | |
12821 | and then Acts_As_Spec (Unit (Cunit_Node))) | |
12822 | then | |
12823 | null; | |
12824 | else | |
12825 | Error_Pragma ( | |
12826 | "pragma% must apply to package or subprogram declaration"); | |
12827 | end if; | |
12828 | ||
12829 | Set_Is_Remote_Call_Interface (Cunit_Ent); | |
12830 | end Remote_Call_Interface; | |
12831 | ||
12832 | ------------------ | |
12833 | -- Remote_Types -- | |
12834 | ------------------ | |
12835 | ||
12836 | -- pragma Remote_Types [(library_unit_NAME)]; | |
12837 | ||
12838 | when Pragma_Remote_Types => Remote_Types : declare | |
12839 | Cunit_Node : Node_Id; | |
12840 | Cunit_Ent : Entity_Id; | |
12841 | ||
12842 | begin | |
12843 | Check_Ada_83_Warning; | |
12844 | Check_Valid_Library_Unit_Pragma; | |
12845 | ||
12846 | if Nkind (N) = N_Null_Statement then | |
12847 | return; | |
12848 | end if; | |
12849 | ||
12850 | Cunit_Node := Cunit (Current_Sem_Unit); | |
12851 | Cunit_Ent := Cunit_Entity (Current_Sem_Unit); | |
12852 | ||
d7ba4df4 RD |
12853 | if not Nkind_In (Unit (Cunit_Node), N_Package_Declaration, |
12854 | N_Generic_Package_Declaration) | |
996ae0b0 | 12855 | then |
d7ba4df4 RD |
12856 | Error_Pragma |
12857 | ("pragma% can only apply to a package declaration"); | |
996ae0b0 RK |
12858 | end if; |
12859 | ||
12860 | Set_Is_Remote_Types (Cunit_Ent); | |
12861 | end Remote_Types; | |
12862 | ||
12863 | --------------- | |
12864 | -- Ravenscar -- | |
12865 | --------------- | |
12866 | ||
fbf5a39b AC |
12867 | -- pragma Ravenscar; |
12868 | ||
996ae0b0 RK |
12869 | when Pragma_Ravenscar => |
12870 | GNAT_Pragma; | |
12871 | Check_Arg_Count (0); | |
12872 | Check_Valid_Configuration_Pragma; | |
8a36a0cc | 12873 | Set_Ravenscar_Profile (N); |
996ae0b0 | 12874 | |
cc335f43 | 12875 | if Warn_On_Obsolescent_Feature then |
ed2233dc AC |
12876 | Error_Msg_N ("pragma Ravenscar is an obsolescent feature?", N); |
12877 | Error_Msg_N ("|use pragma Profile (Ravenscar) instead", N); | |
cc335f43 AC |
12878 | end if; |
12879 | ||
996ae0b0 RK |
12880 | ------------------------- |
12881 | -- Restricted_Run_Time -- | |
12882 | ------------------------- | |
12883 | ||
fbf5a39b AC |
12884 | -- pragma Restricted_Run_Time; |
12885 | ||
996ae0b0 RK |
12886 | when Pragma_Restricted_Run_Time => |
12887 | GNAT_Pragma; | |
12888 | Check_Arg_Count (0); | |
12889 | Check_Valid_Configuration_Pragma; | |
23e6615e RD |
12890 | Set_Profile_Restrictions |
12891 | (Restricted, N, Warn => Treat_Restrictions_As_Warnings); | |
cc335f43 AC |
12892 | |
12893 | if Warn_On_Obsolescent_Feature then | |
ed2233dc | 12894 | Error_Msg_N |
cc335f43 | 12895 | ("pragma Restricted_Run_Time is an obsolescent feature?", N); |
ed2233dc | 12896 | Error_Msg_N ("|use pragma Profile (Restricted) instead", N); |
cc335f43 | 12897 | end if; |
996ae0b0 RK |
12898 | |
12899 | ------------------ | |
12900 | -- Restrictions -- | |
12901 | ------------------ | |
12902 | ||
12903 | -- pragma Restrictions (RESTRICTION {, RESTRICTION}); | |
12904 | ||
12905 | -- RESTRICTION ::= | |
12906 | -- restriction_IDENTIFIER | |
12907 | -- | restriction_parameter_IDENTIFIER => EXPRESSION | |
12908 | ||
6e937c1c | 12909 | when Pragma_Restrictions => |
23e6615e RD |
12910 | Process_Restrictions_Or_Restriction_Warnings |
12911 | (Warn => Treat_Restrictions_As_Warnings); | |
996ae0b0 | 12912 | |
fbf5a39b AC |
12913 | -------------------------- |
12914 | -- Restriction_Warnings -- | |
12915 | -------------------------- | |
12916 | ||
12917 | -- pragma Restriction_Warnings (RESTRICTION {, RESTRICTION}); | |
12918 | ||
6e937c1c AC |
12919 | -- RESTRICTION ::= |
12920 | -- restriction_IDENTIFIER | |
12921 | -- | restriction_parameter_IDENTIFIER => EXPRESSION | |
fbf5a39b | 12922 | |
6e937c1c | 12923 | when Pragma_Restriction_Warnings => |
21d27997 | 12924 | GNAT_Pragma; |
ac9e9918 | 12925 | Process_Restrictions_Or_Restriction_Warnings (Warn => True); |
fbf5a39b | 12926 | |
996ae0b0 RK |
12927 | ---------------- |
12928 | -- Reviewable -- | |
12929 | ---------------- | |
12930 | ||
12931 | -- pragma Reviewable; | |
12932 | ||
12933 | when Pragma_Reviewable => | |
12934 | Check_Ada_83_Warning; | |
12935 | Check_Arg_Count (0); | |
6a2afd13 AC |
12936 | |
12937 | -- Call dummy debugging function rv. This is done to assist front | |
12938 | -- end debugging. By placing a Reviewable pragma in the source | |
12939 | -- program, a breakpoint on rv catches this place in the source, | |
12940 | -- allowing convenient stepping to the point of interest. | |
12941 | ||
2fa9443e | 12942 | rv; |
996ae0b0 | 12943 | |
6a2afd13 AC |
12944 | -------------------------- |
12945 | -- Short_Circuit_And_Or -- | |
12946 | -------------------------- | |
12947 | ||
12948 | when Pragma_Short_Circuit_And_Or => | |
12949 | GNAT_Pragma; | |
12950 | Check_Arg_Count (0); | |
12951 | Check_Valid_Configuration_Pragma; | |
12952 | Short_Circuit_And_Or := True; | |
12953 | ||
996ae0b0 RK |
12954 | ------------------- |
12955 | -- Share_Generic -- | |
12956 | ------------------- | |
12957 | ||
12958 | -- pragma Share_Generic (NAME {, NAME}); | |
12959 | ||
12960 | when Pragma_Share_Generic => | |
12961 | GNAT_Pragma; | |
12962 | Process_Generic_List; | |
12963 | ||
12964 | ------------ | |
12965 | -- Shared -- | |
12966 | ------------ | |
12967 | ||
12968 | -- pragma Shared (LOCAL_NAME); | |
12969 | ||
12970 | when Pragma_Shared => | |
07fc65c4 | 12971 | GNAT_Pragma; |
996ae0b0 RK |
12972 | Process_Atomic_Shared_Volatile; |
12973 | ||
12974 | -------------------- | |
12975 | -- Shared_Passive -- | |
12976 | -------------------- | |
12977 | ||
12978 | -- pragma Shared_Passive [(library_unit_NAME)]; | |
12979 | ||
12980 | -- Set the flag Is_Shared_Passive of program unit name entity | |
12981 | ||
12982 | when Pragma_Shared_Passive => Shared_Passive : declare | |
12983 | Cunit_Node : Node_Id; | |
12984 | Cunit_Ent : Entity_Id; | |
12985 | ||
12986 | begin | |
12987 | Check_Ada_83_Warning; | |
12988 | Check_Valid_Library_Unit_Pragma; | |
12989 | ||
12990 | if Nkind (N) = N_Null_Statement then | |
12991 | return; | |
12992 | end if; | |
12993 | ||
12994 | Cunit_Node := Cunit (Current_Sem_Unit); | |
12995 | Cunit_Ent := Cunit_Entity (Current_Sem_Unit); | |
12996 | ||
d7ba4df4 RD |
12997 | if not Nkind_In (Unit (Cunit_Node), N_Package_Declaration, |
12998 | N_Generic_Package_Declaration) | |
996ae0b0 | 12999 | then |
d7ba4df4 RD |
13000 | Error_Pragma |
13001 | ("pragma% can only apply to a package declaration"); | |
996ae0b0 RK |
13002 | end if; |
13003 | ||
13004 | Set_Is_Shared_Passive (Cunit_Ent); | |
13005 | end Shared_Passive; | |
13006 | ||
292beb8f AC |
13007 | ----------------------- |
13008 | -- Short_Descriptors -- | |
13009 | ----------------------- | |
13010 | ||
13011 | -- pragma Short_Descriptors; | |
13012 | ||
13013 | when Pragma_Short_Descriptors => | |
13014 | GNAT_Pragma; | |
13015 | Check_Arg_Count (0); | |
13016 | Check_Valid_Configuration_Pragma; | |
13017 | Short_Descriptors := True; | |
13018 | ||
996ae0b0 RK |
13019 | ---------------------- |
13020 | -- Source_File_Name -- | |
13021 | ---------------------- | |
13022 | ||
2820d220 AC |
13023 | -- There are five forms for this pragma: |
13024 | ||
13025 | -- pragma Source_File_Name ( | |
13026 | -- [UNIT_NAME =>] unit_NAME, | |
13027 | -- BODY_FILE_NAME => STRING_LITERAL | |
13028 | -- [, [INDEX =>] INTEGER_LITERAL]); | |
13029 | ||
996ae0b0 | 13030 | -- pragma Source_File_Name ( |
2820d220 AC |
13031 | -- [UNIT_NAME =>] unit_NAME, |
13032 | -- SPEC_FILE_NAME => STRING_LITERAL | |
13033 | -- [, [INDEX =>] INTEGER_LITERAL]); | |
13034 | ||
13035 | -- pragma Source_File_Name ( | |
13036 | -- BODY_FILE_NAME => STRING_LITERAL | |
13037 | -- [, DOT_REPLACEMENT => STRING_LITERAL] | |
13038 | -- [, CASING => CASING_SPEC]); | |
13039 | ||
13040 | -- pragma Source_File_Name ( | |
13041 | -- SPEC_FILE_NAME => STRING_LITERAL | |
13042 | -- [, DOT_REPLACEMENT => STRING_LITERAL] | |
13043 | -- [, CASING => CASING_SPEC]); | |
13044 | ||
13045 | -- pragma Source_File_Name ( | |
13046 | -- SUBUNIT_FILE_NAME => STRING_LITERAL | |
13047 | -- [, DOT_REPLACEMENT => STRING_LITERAL] | |
13048 | -- [, CASING => CASING_SPEC]); | |
13049 | ||
13050 | -- CASING_SPEC ::= Uppercase | Lowercase | Mixedcase | |
13051 | ||
13052 | -- Pragma Source_File_Name_Project (SFNP) is equivalent to pragma | |
b3b9865d AC |
13053 | -- Source_File_Name (SFN), however their usage is exclusive: SFN can |
13054 | -- only be used when no project file is used, while SFNP can only be | |
13055 | -- used when a project file is used. | |
996ae0b0 | 13056 | |
b3b9865d AC |
13057 | -- No processing here. Processing was completed during parsing, since |
13058 | -- we need to have file names set as early as possible. Units are | |
13059 | -- loaded well before semantic processing starts. | |
996ae0b0 | 13060 | |
b3b9865d AC |
13061 | -- The only processing we defer to this point is the check for |
13062 | -- correct placement. | |
996ae0b0 RK |
13063 | |
13064 | when Pragma_Source_File_Name => | |
13065 | GNAT_Pragma; | |
13066 | Check_Valid_Configuration_Pragma; | |
13067 | ||
fbf5a39b AC |
13068 | ------------------------------ |
13069 | -- Source_File_Name_Project -- | |
13070 | ------------------------------ | |
13071 | ||
2820d220 | 13072 | -- See Source_File_Name for syntax |
fbf5a39b | 13073 | |
b3b9865d AC |
13074 | -- No processing here. Processing was completed during parsing, since |
13075 | -- we need to have file names set as early as possible. Units are | |
13076 | -- loaded well before semantic processing starts. | |
fbf5a39b | 13077 | |
b3b9865d AC |
13078 | -- The only processing we defer to this point is the check for |
13079 | -- correct placement. | |
fbf5a39b AC |
13080 | |
13081 | when Pragma_Source_File_Name_Project => | |
13082 | GNAT_Pragma; | |
13083 | Check_Valid_Configuration_Pragma; | |
13084 | ||
b3b9865d AC |
13085 | -- Check that a pragma Source_File_Name_Project is used only in a |
13086 | -- configuration pragmas file. | |
2820d220 | 13087 | |
b3b9865d AC |
13088 | -- Pragmas Source_File_Name_Project should only be generated by |
13089 | -- the Project Manager in configuration pragmas files. | |
fbf5a39b AC |
13090 | |
13091 | -- This is really an ugly test. It seems to depend on some | |
b3b9865d AC |
13092 | -- accidental and undocumented property. At the very least it |
13093 | -- needs to be documented, but it would be better to have a | |
13094 | -- clean way of testing if we are in a configuration file??? | |
fbf5a39b AC |
13095 | |
13096 | if Present (Parent (N)) then | |
13097 | Error_Pragma | |
13098 | ("pragma% can only appear in a configuration pragmas file"); | |
13099 | end if; | |
13100 | ||
996ae0b0 RK |
13101 | ---------------------- |
13102 | -- Source_Reference -- | |
13103 | ---------------------- | |
13104 | ||
13105 | -- pragma Source_Reference (INTEGER_LITERAL [, STRING_LITERAL]); | |
13106 | ||
b3b9865d AC |
13107 | -- Nothing to do, all processing completed in Par.Prag, since we need |
13108 | -- the information for possible parser messages that are output. | |
996ae0b0 RK |
13109 | |
13110 | when Pragma_Source_Reference => | |
13111 | GNAT_Pragma; | |
13112 | ||
2fa9443e ES |
13113 | -------------------------------- |
13114 | -- Static_Elaboration_Desired -- | |
13115 | -------------------------------- | |
13116 | ||
c690a2ec | 13117 | -- pragma Static_Elaboration_Desired (DIRECT_NAME); |
2fa9443e ES |
13118 | |
13119 | when Pragma_Static_Elaboration_Desired => | |
c690a2ec RD |
13120 | GNAT_Pragma; |
13121 | Check_At_Most_N_Arguments (1); | |
2fa9443e ES |
13122 | |
13123 | if Is_Compilation_Unit (Current_Scope) | |
13124 | and then Ekind (Current_Scope) = E_Package | |
13125 | then | |
13126 | Set_Static_Elaboration_Desired (Current_Scope, True); | |
13127 | else | |
13128 | Error_Pragma ("pragma% must apply to a library-level package"); | |
13129 | end if; | |
13130 | ||
996ae0b0 RK |
13131 | ------------------ |
13132 | -- Storage_Size -- | |
13133 | ------------------ | |
13134 | ||
13135 | -- pragma Storage_Size (EXPRESSION); | |
13136 | ||
13137 | when Pragma_Storage_Size => Storage_Size : declare | |
fbf5a39b AC |
13138 | P : constant Node_Id := Parent (N); |
13139 | Arg : Node_Id; | |
996ae0b0 RK |
13140 | |
13141 | begin | |
13142 | Check_No_Identifiers; | |
13143 | Check_Arg_Count (1); | |
13144 | ||
21d27997 RD |
13145 | -- The expression must be analyzed in the special manner described |
13146 | -- in "Handling of Default Expressions" in sem.ads. | |
996ae0b0 | 13147 | |
0f1a6a0b | 13148 | Arg := Get_Pragma_Arg (Arg1); |
21d27997 | 13149 | Preanalyze_Spec_Expression (Arg, Any_Integer); |
996ae0b0 | 13150 | |
fbf5a39b AC |
13151 | if not Is_Static_Expression (Arg) then |
13152 | Check_Restriction (Static_Storage_Size, Arg); | |
996ae0b0 RK |
13153 | end if; |
13154 | ||
13155 | if Nkind (P) /= N_Task_Definition then | |
13156 | Pragma_Misplaced; | |
13157 | return; | |
13158 | ||
13159 | else | |
13160 | if Has_Storage_Size_Pragma (P) then | |
13161 | Error_Pragma ("duplicate pragma% not allowed"); | |
13162 | else | |
13163 | Set_Has_Storage_Size_Pragma (P, True); | |
13164 | end if; | |
13165 | ||
13166 | Record_Rep_Item (Defining_Identifier (Parent (P)), N); | |
13167 | -- ??? exp_ch9 should use this! | |
13168 | end if; | |
13169 | end Storage_Size; | |
13170 | ||
13171 | ------------------ | |
13172 | -- Storage_Unit -- | |
13173 | ------------------ | |
13174 | ||
13175 | -- pragma Storage_Unit (NUMERIC_LITERAL); | |
13176 | ||
13177 | -- Only permitted argument is System'Storage_Unit value | |
13178 | ||
13179 | when Pragma_Storage_Unit => | |
13180 | Check_No_Identifiers; | |
13181 | Check_Arg_Count (1); | |
13182 | Check_Arg_Is_Integer_Literal (Arg1); | |
13183 | ||
0f1a6a0b | 13184 | if Intval (Get_Pragma_Arg (Arg1)) /= |
996ae0b0 RK |
13185 | UI_From_Int (Ttypes.System_Storage_Unit) |
13186 | then | |
13187 | Error_Msg_Uint_1 := UI_From_Int (Ttypes.System_Storage_Unit); | |
13188 | Error_Pragma_Arg | |
13189 | ("the only allowed argument for pragma% is ^", Arg1); | |
13190 | end if; | |
13191 | ||
13192 | -------------------- | |
13193 | -- Stream_Convert -- | |
13194 | -------------------- | |
13195 | ||
13196 | -- pragma Stream_Convert ( | |
13197 | -- [Entity =>] type_LOCAL_NAME, | |
13198 | -- [Read =>] function_NAME, | |
13199 | -- [Write =>] function NAME); | |
13200 | ||
07fc65c4 GB |
13201 | when Pragma_Stream_Convert => Stream_Convert : declare |
13202 | ||
13203 | procedure Check_OK_Stream_Convert_Function (Arg : Node_Id); | |
b3b9865d AC |
13204 | -- Check that the given argument is the name of a local function |
13205 | -- of one argument that is not overloaded earlier in the current | |
13206 | -- local scope. A check is also made that the argument is a | |
13207 | -- function with one parameter. | |
07fc65c4 GB |
13208 | |
13209 | -------------------------------------- | |
13210 | -- Check_OK_Stream_Convert_Function -- | |
13211 | -------------------------------------- | |
13212 | ||
13213 | procedure Check_OK_Stream_Convert_Function (Arg : Node_Id) is | |
13214 | Ent : Entity_Id; | |
13215 | ||
13216 | begin | |
13217 | Check_Arg_Is_Local_Name (Arg); | |
0f1a6a0b | 13218 | Ent := Entity (Get_Pragma_Arg (Arg)); |
07fc65c4 GB |
13219 | |
13220 | if Has_Homonym (Ent) then | |
13221 | Error_Pragma_Arg | |
13222 | ("argument for pragma% may not be overloaded", Arg); | |
13223 | end if; | |
13224 | ||
13225 | if Ekind (Ent) /= E_Function | |
13226 | or else No (First_Formal (Ent)) | |
13227 | or else Present (Next_Formal (First_Formal (Ent))) | |
13228 | then | |
13229 | Error_Pragma_Arg | |
13230 | ("argument for pragma% must be" & | |
13231 | " function of one argument", Arg); | |
13232 | end if; | |
13233 | end Check_OK_Stream_Convert_Function; | |
13234 | ||
f3d57416 | 13235 | -- Start of processing for Stream_Convert |
07fc65c4 GB |
13236 | |
13237 | begin | |
996ae0b0 | 13238 | GNAT_Pragma; |
59e5fbe0 | 13239 | Check_Arg_Order ((Name_Entity, Name_Read, Name_Write)); |
996ae0b0 RK |
13240 | Check_Arg_Count (3); |
13241 | Check_Optional_Identifier (Arg1, Name_Entity); | |
13242 | Check_Optional_Identifier (Arg2, Name_Read); | |
13243 | Check_Optional_Identifier (Arg3, Name_Write); | |
13244 | Check_Arg_Is_Local_Name (Arg1); | |
07fc65c4 GB |
13245 | Check_OK_Stream_Convert_Function (Arg2); |
13246 | Check_OK_Stream_Convert_Function (Arg3); | |
996ae0b0 RK |
13247 | |
13248 | declare | |
13249 | Typ : constant Entity_Id := | |
0f1a6a0b AC |
13250 | Underlying_Type (Entity (Get_Pragma_Arg (Arg1))); |
13251 | Read : constant Entity_Id := Entity (Get_Pragma_Arg (Arg2)); | |
13252 | Write : constant Entity_Id := Entity (Get_Pragma_Arg (Arg3)); | |
996ae0b0 RK |
13253 | |
13254 | begin | |
21d27997 RD |
13255 | Check_First_Subtype (Arg1); |
13256 | ||
13257 | -- Check for too early or too late. Note that we don't enforce | |
13258 | -- the rule about primitive operations in this case, since, as | |
13259 | -- is the case for explicit stream attributes themselves, these | |
13260 | -- restrictions are not appropriate. Note that the chaining of | |
13261 | -- the pragma by Rep_Item_Too_Late is actually the critical | |
13262 | -- processing done for this pragma. | |
13263 | ||
13264 | if Rep_Item_Too_Early (Typ, N) | |
996ae0b0 | 13265 | or else |
21d27997 | 13266 | Rep_Item_Too_Late (Typ, N, FOnly => True) |
996ae0b0 RK |
13267 | then |
13268 | return; | |
13269 | end if; | |
13270 | ||
21d27997 | 13271 | -- Return if previous error |
996ae0b0 | 13272 | |
21d27997 RD |
13273 | if Etype (Typ) = Any_Type |
13274 | or else | |
13275 | Etype (Read) = Any_Type | |
996ae0b0 | 13276 | or else |
21d27997 | 13277 | Etype (Write) = Any_Type |
996ae0b0 RK |
13278 | then |
13279 | return; | |
13280 | end if; | |
13281 | ||
21d27997 RD |
13282 | -- Error checks |
13283 | ||
996ae0b0 RK |
13284 | if Underlying_Type (Etype (Read)) /= Typ then |
13285 | Error_Pragma_Arg | |
13286 | ("incorrect return type for function&", Arg2); | |
13287 | end if; | |
13288 | ||
13289 | if Underlying_Type (Etype (First_Formal (Write))) /= Typ then | |
13290 | Error_Pragma_Arg | |
13291 | ("incorrect parameter type for function&", Arg3); | |
13292 | end if; | |
13293 | ||
13294 | if Underlying_Type (Etype (First_Formal (Read))) /= | |
13295 | Underlying_Type (Etype (Write)) | |
13296 | then | |
13297 | Error_Pragma_Arg | |
13298 | ("result type of & does not match Read parameter type", | |
13299 | Arg3); | |
13300 | end if; | |
13301 | end; | |
13302 | end Stream_Convert; | |
13303 | ||
13304 | ------------------------- | |
13305 | -- Style_Checks (GNAT) -- | |
13306 | ------------------------- | |
13307 | ||
13308 | -- pragma Style_Checks (On | Off | ALL_CHECKS | STRING_LITERAL); | |
13309 | ||
b3b9865d AC |
13310 | -- This is processed by the parser since some of the style checks |
13311 | -- take place during source scanning and parsing. This means that | |
13312 | -- we don't need to issue error messages here. | |
996ae0b0 RK |
13313 | |
13314 | when Pragma_Style_Checks => Style_Checks : declare | |
0f1a6a0b | 13315 | A : constant Node_Id := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
13316 | S : String_Id; |
13317 | C : Char_Code; | |
13318 | ||
13319 | begin | |
13320 | GNAT_Pragma; | |
13321 | Check_No_Identifiers; | |
13322 | ||
13323 | -- Two argument form | |
13324 | ||
13325 | if Arg_Count = 2 then | |
13326 | Check_Arg_Is_One_Of (Arg1, Name_On, Name_Off); | |
13327 | ||
13328 | declare | |
13329 | E_Id : Node_Id; | |
13330 | E : Entity_Id; | |
13331 | ||
13332 | begin | |
0f1a6a0b | 13333 | E_Id := Get_Pragma_Arg (Arg2); |
996ae0b0 RK |
13334 | Analyze (E_Id); |
13335 | ||
13336 | if not Is_Entity_Name (E_Id) then | |
13337 | Error_Pragma_Arg | |
13338 | ("second argument of pragma% must be entity name", | |
13339 | Arg2); | |
13340 | end if; | |
13341 | ||
13342 | E := Entity (E_Id); | |
13343 | ||
13344 | if E = Any_Id then | |
13345 | return; | |
13346 | else | |
13347 | loop | |
13348 | Set_Suppress_Style_Checks (E, | |
0f1a6a0b | 13349 | (Chars (Get_Pragma_Arg (Arg1)) = Name_Off)); |
996ae0b0 RK |
13350 | exit when No (Homonym (E)); |
13351 | E := Homonym (E); | |
13352 | end loop; | |
13353 | end if; | |
13354 | end; | |
13355 | ||
13356 | -- One argument form | |
13357 | ||
13358 | else | |
13359 | Check_Arg_Count (1); | |
13360 | ||
13361 | if Nkind (A) = N_String_Literal then | |
13362 | S := Strval (A); | |
13363 | ||
13364 | declare | |
fbf5a39b | 13365 | Slen : constant Natural := Natural (String_Length (S)); |
996ae0b0 RK |
13366 | Options : String (1 .. Slen); |
13367 | J : Natural; | |
13368 | ||
13369 | begin | |
13370 | J := 1; | |
13371 | loop | |
13372 | C := Get_String_Char (S, Int (J)); | |
13373 | exit when not In_Character_Range (C); | |
13374 | Options (J) := Get_Character (C); | |
13375 | ||
c3217dac RD |
13376 | -- If at end of string, set options. As per discussion |
13377 | -- above, no need to check for errors, since we issued | |
13378 | -- them in the parser. | |
13379 | ||
996ae0b0 RK |
13380 | if J = Slen then |
13381 | Set_Style_Check_Options (Options); | |
13382 | exit; | |
996ae0b0 | 13383 | end if; |
c3217dac RD |
13384 | |
13385 | J := J + 1; | |
996ae0b0 RK |
13386 | end loop; |
13387 | end; | |
13388 | ||
13389 | elsif Nkind (A) = N_Identifier then | |
996ae0b0 | 13390 | if Chars (A) = Name_All_Checks then |
19d846a0 RD |
13391 | if GNAT_Mode then |
13392 | Set_GNAT_Style_Check_Options; | |
13393 | else | |
13394 | Set_Default_Style_Check_Options; | |
13395 | end if; | |
996ae0b0 RK |
13396 | |
13397 | elsif Chars (A) = Name_On then | |
13398 | Style_Check := True; | |
13399 | ||
13400 | elsif Chars (A) = Name_Off then | |
13401 | Style_Check := False; | |
996ae0b0 RK |
13402 | end if; |
13403 | end if; | |
13404 | end if; | |
13405 | end Style_Checks; | |
13406 | ||
13407 | -------------- | |
13408 | -- Subtitle -- | |
13409 | -------------- | |
13410 | ||
13411 | -- pragma Subtitle ([Subtitle =>] STRING_LITERAL); | |
13412 | ||
13413 | when Pragma_Subtitle => | |
13414 | GNAT_Pragma; | |
13415 | Check_Arg_Count (1); | |
13416 | Check_Optional_Identifier (Arg1, Name_Subtitle); | |
7eaa7cdf RD |
13417 | Check_Arg_Is_Static_Expression (Arg1, Standard_String); |
13418 | Store_Note (N); | |
996ae0b0 RK |
13419 | |
13420 | -------------- | |
13421 | -- Suppress -- | |
13422 | -------------- | |
13423 | ||
13424 | -- pragma Suppress (IDENTIFIER [, [On =>] NAME]); | |
13425 | ||
13426 | when Pragma_Suppress => | |
13427 | Process_Suppress_Unsuppress (True); | |
13428 | ||
13429 | ------------------ | |
13430 | -- Suppress_All -- | |
13431 | ------------------ | |
13432 | ||
13433 | -- pragma Suppress_All; | |
13434 | ||
c775c209 AC |
13435 | -- The only check made here is that the pragma has no arguments. |
13436 | -- There are no placement rules, and the processing required (setting | |
13437 | -- the Has_Pragma_Suppress_All flag in the compilation unit node was | |
13438 | -- taken care of by the parser). Process_Compilation_Unit_Pragmas | |
13439 | -- then creates and inserts a pragma Suppress (All_Checks). | |
996ae0b0 RK |
13440 | |
13441 | when Pragma_Suppress_All => | |
13442 | GNAT_Pragma; | |
13443 | Check_Arg_Count (0); | |
13444 | ||
996ae0b0 RK |
13445 | ------------------------- |
13446 | -- Suppress_Debug_Info -- | |
13447 | ------------------------- | |
13448 | ||
13449 | -- pragma Suppress_Debug_Info ([Entity =>] LOCAL_NAME); | |
13450 | ||
13451 | when Pragma_Suppress_Debug_Info => | |
13452 | GNAT_Pragma; | |
13453 | Check_Arg_Count (1); | |
996ae0b0 | 13454 | Check_Optional_Identifier (Arg1, Name_Entity); |
59e5fbe0 | 13455 | Check_Arg_Is_Local_Name (Arg1); |
eaba57fb | 13456 | Set_Debug_Info_Off (Entity (Get_Pragma_Arg (Arg1))); |
996ae0b0 | 13457 | |
fbf5a39b AC |
13458 | ---------------------------------- |
13459 | -- Suppress_Exception_Locations -- | |
13460 | ---------------------------------- | |
13461 | ||
13462 | -- pragma Suppress_Exception_Locations; | |
13463 | ||
13464 | when Pragma_Suppress_Exception_Locations => | |
13465 | GNAT_Pragma; | |
13466 | Check_Arg_Count (0); | |
13467 | Check_Valid_Configuration_Pragma; | |
13468 | Exception_Locations_Suppressed := True; | |
13469 | ||
996ae0b0 RK |
13470 | ----------------------------- |
13471 | -- Suppress_Initialization -- | |
13472 | ----------------------------- | |
13473 | ||
13474 | -- pragma Suppress_Initialization ([Entity =>] type_Name); | |
13475 | ||
13476 | when Pragma_Suppress_Initialization => Suppress_Init : declare | |
13477 | E_Id : Node_Id; | |
13478 | E : Entity_Id; | |
13479 | ||
13480 | begin | |
13481 | GNAT_Pragma; | |
13482 | Check_Arg_Count (1); | |
13483 | Check_Optional_Identifier (Arg1, Name_Entity); | |
13484 | Check_Arg_Is_Local_Name (Arg1); | |
13485 | ||
0f1a6a0b | 13486 | E_Id := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
13487 | |
13488 | if Etype (E_Id) = Any_Type then | |
13489 | return; | |
13490 | end if; | |
13491 | ||
13492 | E := Entity (E_Id); | |
13493 | ||
5b1e6aca RD |
13494 | if not Is_Type (E) then |
13495 | Error_Pragma_Arg ("pragma% requires type or subtype", Arg1); | |
13496 | end if; | |
13497 | ||
13498 | if Rep_Item_Too_Early (E, N) | |
13499 | or else | |
13500 | Rep_Item_Too_Late (E, N, FOnly => True) | |
13501 | then | |
13502 | return; | |
13503 | end if; | |
13504 | ||
13505 | -- For incomplete/private type, set flag on full view | |
13506 | ||
13507 | if Is_Incomplete_Or_Private_Type (E) then | |
13508 | if No (Full_View (Base_Type (E))) then | |
13509 | Error_Pragma_Arg | |
13510 | ("argument of pragma% cannot be an incomplete type", Arg1); | |
996ae0b0 | 13511 | else |
5b1e6aca | 13512 | Set_Suppress_Initialization (Full_View (Base_Type (E))); |
996ae0b0 RK |
13513 | end if; |
13514 | ||
5b1e6aca RD |
13515 | -- For first subtype, set flag on base type |
13516 | ||
13517 | elsif Is_First_Subtype (E) then | |
13518 | Set_Suppress_Initialization (Base_Type (E)); | |
13519 | ||
13520 | -- For other than first subtype, set flag on subtype itself | |
13521 | ||
996ae0b0 | 13522 | else |
5b1e6aca | 13523 | Set_Suppress_Initialization (E); |
996ae0b0 RK |
13524 | end if; |
13525 | end Suppress_Init; | |
13526 | ||
13527 | ----------------- | |
13528 | -- System_Name -- | |
13529 | ----------------- | |
13530 | ||
13531 | -- pragma System_Name (DIRECT_NAME); | |
13532 | ||
b3b9865d AC |
13533 | -- Syntax check: one argument, which must be the identifier GNAT or |
13534 | -- the identifier GCC, no other identifiers are acceptable. | |
996ae0b0 RK |
13535 | |
13536 | when Pragma_System_Name => | |
a30a01fe | 13537 | GNAT_Pragma; |
996ae0b0 RK |
13538 | Check_No_Identifiers; |
13539 | Check_Arg_Count (1); | |
13540 | Check_Arg_Is_One_Of (Arg1, Name_Gcc, Name_Gnat); | |
13541 | ||
13542 | ----------------------------- | |
13543 | -- Task_Dispatching_Policy -- | |
13544 | ----------------------------- | |
13545 | ||
13546 | -- pragma Task_Dispatching_Policy (policy_IDENTIFIER); | |
13547 | ||
13548 | when Pragma_Task_Dispatching_Policy => declare | |
13549 | DP : Character; | |
13550 | ||
13551 | begin | |
13552 | Check_Ada_83_Warning; | |
13553 | Check_Arg_Count (1); | |
13554 | Check_No_Identifiers; | |
13555 | Check_Arg_Is_Task_Dispatching_Policy (Arg1); | |
13556 | Check_Valid_Configuration_Pragma; | |
0f1a6a0b | 13557 | Get_Name_String (Chars (Get_Pragma_Arg (Arg1))); |
996ae0b0 RK |
13558 | DP := Fold_Upper (Name_Buffer (1)); |
13559 | ||
13560 | if Task_Dispatching_Policy /= ' ' | |
13561 | and then Task_Dispatching_Policy /= DP | |
13562 | then | |
13563 | Error_Msg_Sloc := Task_Dispatching_Policy_Sloc; | |
13564 | Error_Pragma | |
13565 | ("task dispatching policy incompatible with policy#"); | |
fbf5a39b | 13566 | |
b3b9865d AC |
13567 | -- Set new policy, but always preserve System_Location since we |
13568 | -- like the error message with the run time name. | |
fbf5a39b | 13569 | |
996ae0b0 RK |
13570 | else |
13571 | Task_Dispatching_Policy := DP; | |
fbf5a39b AC |
13572 | |
13573 | if Task_Dispatching_Policy_Sloc /= System_Location then | |
13574 | Task_Dispatching_Policy_Sloc := Loc; | |
13575 | end if; | |
996ae0b0 RK |
13576 | end if; |
13577 | end; | |
13578 | ||
dac3bede | 13579 | --------------- |
996ae0b0 | 13580 | -- Task_Info -- |
dac3bede | 13581 | --------------- |
996ae0b0 RK |
13582 | |
13583 | -- pragma Task_Info (EXPRESSION); | |
13584 | ||
13585 | when Pragma_Task_Info => Task_Info : declare | |
13586 | P : constant Node_Id := Parent (N); | |
13587 | ||
13588 | begin | |
13589 | GNAT_Pragma; | |
13590 | ||
13591 | if Nkind (P) /= N_Task_Definition then | |
13592 | Error_Pragma ("pragma% must appear in task definition"); | |
13593 | end if; | |
13594 | ||
13595 | Check_No_Identifiers; | |
13596 | Check_Arg_Count (1); | |
13597 | ||
0f1a6a0b AC |
13598 | Analyze_And_Resolve |
13599 | (Get_Pragma_Arg (Arg1), RTE (RE_Task_Info_Type)); | |
996ae0b0 | 13600 | |
0f1a6a0b | 13601 | if Etype (Get_Pragma_Arg (Arg1)) = Any_Type then |
996ae0b0 RK |
13602 | return; |
13603 | end if; | |
13604 | ||
13605 | if Has_Task_Info_Pragma (P) then | |
13606 | Error_Pragma ("duplicate pragma% not allowed"); | |
13607 | else | |
13608 | Set_Has_Task_Info_Pragma (P, True); | |
13609 | end if; | |
996ae0b0 RK |
13610 | end Task_Info; |
13611 | ||
13612 | --------------- | |
13613 | -- Task_Name -- | |
13614 | --------------- | |
13615 | ||
13616 | -- pragma Task_Name (string_EXPRESSION); | |
13617 | ||
13618 | when Pragma_Task_Name => Task_Name : declare | |
996ae0b0 RK |
13619 | P : constant Node_Id := Parent (N); |
13620 | Arg : Node_Id; | |
13621 | ||
13622 | begin | |
13623 | Check_No_Identifiers; | |
13624 | Check_Arg_Count (1); | |
13625 | ||
0f1a6a0b | 13626 | Arg := Get_Pragma_Arg (Arg1); |
4017021b | 13627 | |
b3b9865d | 13628 | -- The expression is used in the call to Create_Task, and must be |
c5326593 ES |
13629 | -- expanded there, not in the context of the current spec. It must |
13630 | -- however be analyzed to capture global references, in case it | |
13631 | -- appears in a generic context. | |
4017021b | 13632 | |
c5326593 | 13633 | Preanalyze_And_Resolve (Arg, Standard_String); |
996ae0b0 RK |
13634 | |
13635 | if Nkind (P) /= N_Task_Definition then | |
13636 | Pragma_Misplaced; | |
13637 | end if; | |
13638 | ||
13639 | if Has_Task_Name_Pragma (P) then | |
13640 | Error_Pragma ("duplicate pragma% not allowed"); | |
13641 | else | |
13642 | Set_Has_Task_Name_Pragma (P, True); | |
13643 | Record_Rep_Item (Defining_Identifier (Parent (P)), N); | |
13644 | end if; | |
996ae0b0 RK |
13645 | end Task_Name; |
13646 | ||
13647 | ------------------ | |
13648 | -- Task_Storage -- | |
13649 | ------------------ | |
13650 | ||
13651 | -- pragma Task_Storage ( | |
13652 | -- [Task_Type =>] LOCAL_NAME, | |
13653 | -- [Top_Guard =>] static_integer_EXPRESSION); | |
13654 | ||
13655 | when Pragma_Task_Storage => Task_Storage : declare | |
13656 | Args : Args_List (1 .. 2); | |
fbf5a39b | 13657 | Names : constant Name_List (1 .. 2) := ( |
996ae0b0 RK |
13658 | Name_Task_Type, |
13659 | Name_Top_Guard); | |
13660 | ||
13661 | Task_Type : Node_Id renames Args (1); | |
13662 | Top_Guard : Node_Id renames Args (2); | |
13663 | ||
13664 | Ent : Entity_Id; | |
13665 | ||
13666 | begin | |
13667 | GNAT_Pragma; | |
13668 | Gather_Associations (Names, Args); | |
fbf5a39b AC |
13669 | |
13670 | if No (Task_Type) then | |
13671 | Error_Pragma | |
13672 | ("missing task_type argument for pragma%"); | |
13673 | end if; | |
13674 | ||
996ae0b0 RK |
13675 | Check_Arg_Is_Local_Name (Task_Type); |
13676 | ||
13677 | Ent := Entity (Task_Type); | |
13678 | ||
13679 | if not Is_Task_Type (Ent) then | |
13680 | Error_Pragma_Arg | |
13681 | ("argument for pragma% must be task type", Task_Type); | |
13682 | end if; | |
13683 | ||
13684 | if No (Top_Guard) then | |
13685 | Error_Pragma_Arg | |
13686 | ("pragma% takes two arguments", Task_Type); | |
13687 | else | |
13688 | Check_Arg_Is_Static_Expression (Top_Guard, Any_Integer); | |
13689 | end if; | |
13690 | ||
13691 | Check_First_Subtype (Task_Type); | |
13692 | ||
13693 | if Rep_Item_Too_Late (Ent, N) then | |
13694 | raise Pragma_Exit; | |
13695 | end if; | |
996ae0b0 RK |
13696 | end Task_Storage; |
13697 | ||
dac3bede YM |
13698 | --------------- |
13699 | -- Test_Case -- | |
13700 | --------------- | |
13701 | ||
a54d0eb4 AC |
13702 | -- pragma Test_Case ([Name =>] Static_String_EXPRESSION |
13703 | -- ,[Mode =>] MODE_TYPE | |
15d8a51d AC |
13704 | -- [, Requires => Boolean_EXPRESSION] |
13705 | -- [, Ensures => Boolean_EXPRESSION]); | |
13706 | ||
5accd7b6 | 13707 | -- MODE_TYPE ::= Nominal | Robustness |
a54d0eb4 | 13708 | |
dac3bede | 13709 | when Pragma_Test_Case => Test_Case : declare |
dac3bede YM |
13710 | begin |
13711 | GNAT_Pragma; | |
e0296583 | 13712 | Check_At_Least_N_Arguments (2); |
dac3bede YM |
13713 | Check_At_Most_N_Arguments (4); |
13714 | Check_Arg_Order | |
a54d0eb4 | 13715 | ((Name_Name, Name_Mode, Name_Requires, Name_Ensures)); |
dac3bede YM |
13716 | |
13717 | Check_Optional_Identifier (Arg1, Name_Name); | |
1f9939b5 | 13718 | Check_Arg_Is_Static_Expression (Arg1, Standard_String); |
8c18a165 AC |
13719 | |
13720 | -- In ASIS mode, for a pragma generated from a source aspect, also | |
13721 | -- analyze the original aspect expression. | |
13722 | ||
13723 | if ASIS_Mode | |
13724 | and then Present (Corresponding_Aspect (N)) | |
13725 | then | |
13726 | Check_Expr_Is_Static_Expression | |
13727 | (Original_Node (Get_Pragma_Arg (Arg1)), Standard_String); | |
13728 | end if; | |
13729 | ||
dac3bede | 13730 | Check_Optional_Identifier (Arg2, Name_Mode); |
5accd7b6 | 13731 | Check_Arg_Is_One_Of (Arg2, Name_Nominal, Name_Robustness); |
15d8a51d | 13732 | |
dac3bede YM |
13733 | if Arg_Count = 4 then |
13734 | Check_Identifier (Arg3, Name_Requires); | |
13735 | Check_Identifier (Arg4, Name_Ensures); | |
3ddd922e | 13736 | |
e0296583 | 13737 | elsif Arg_Count = 3 then |
1bf773bb | 13738 | Check_Identifier_Is_One_Of (Arg3, Name_Requires, Name_Ensures); |
dac3bede YM |
13739 | end if; |
13740 | ||
13741 | Check_Test_Case; | |
13742 | end Test_Case; | |
13743 | ||
4c8a5bb8 AC |
13744 | -------------------------- |
13745 | -- Thread_Local_Storage -- | |
13746 | -------------------------- | |
13747 | ||
13748 | -- pragma Thread_Local_Storage ([Entity =>] LOCAL_NAME); | |
13749 | ||
13750 | when Pragma_Thread_Local_Storage => Thread_Local_Storage : declare | |
13751 | Id : Node_Id; | |
13752 | E : Entity_Id; | |
13753 | ||
13754 | begin | |
13755 | GNAT_Pragma; | |
13756 | Check_Arg_Count (1); | |
13757 | Check_Optional_Identifier (Arg1, Name_Entity); | |
812f574f | 13758 | Check_Arg_Is_Library_Level_Local_Name (Arg1); |
4c8a5bb8 | 13759 | |
0f1a6a0b | 13760 | Id := Get_Pragma_Arg (Arg1); |
4c8a5bb8 AC |
13761 | Analyze (Id); |
13762 | ||
13763 | if not Is_Entity_Name (Id) | |
13764 | or else Ekind (Entity (Id)) /= E_Variable | |
13765 | then | |
13766 | Error_Pragma_Arg ("local variable name required", Arg1); | |
13767 | end if; | |
13768 | ||
13769 | E := Entity (Id); | |
13770 | ||
13771 | if Rep_Item_Too_Early (E, N) | |
13772 | or else Rep_Item_Too_Late (E, N) | |
13773 | then | |
13774 | raise Pragma_Exit; | |
13775 | end if; | |
13776 | ||
13777 | Set_Has_Pragma_Thread_Local_Storage (E); | |
812f574f | 13778 | Set_Has_Gigi_Rep_Item (E); |
4c8a5bb8 AC |
13779 | end Thread_Local_Storage; |
13780 | ||
996ae0b0 RK |
13781 | ---------------- |
13782 | -- Time_Slice -- | |
13783 | ---------------- | |
13784 | ||
13785 | -- pragma Time_Slice (static_duration_EXPRESSION); | |
13786 | ||
13787 | when Pragma_Time_Slice => Time_Slice : declare | |
13788 | Val : Ureal; | |
13789 | Nod : Node_Id; | |
13790 | ||
13791 | begin | |
13792 | GNAT_Pragma; | |
13793 | Check_Arg_Count (1); | |
13794 | Check_No_Identifiers; | |
13795 | Check_In_Main_Program; | |
13796 | Check_Arg_Is_Static_Expression (Arg1, Standard_Duration); | |
13797 | ||
13798 | if not Error_Posted (Arg1) then | |
13799 | Nod := Next (N); | |
13800 | while Present (Nod) loop | |
13801 | if Nkind (Nod) = N_Pragma | |
1b24ada5 | 13802 | and then Pragma_Name (Nod) = Name_Time_Slice |
996ae0b0 | 13803 | then |
1b24ada5 | 13804 | Error_Msg_Name_1 := Pname; |
996ae0b0 RK |
13805 | Error_Msg_N ("duplicate pragma% not permitted", Nod); |
13806 | end if; | |
13807 | ||
13808 | Next (Nod); | |
13809 | end loop; | |
13810 | end if; | |
13811 | ||
13812 | -- Process only if in main unit | |
13813 | ||
13814 | if Get_Source_Unit (Loc) = Main_Unit then | |
13815 | Opt.Time_Slice_Set := True; | |
0f1a6a0b | 13816 | Val := Expr_Value_R (Get_Pragma_Arg (Arg1)); |
996ae0b0 RK |
13817 | |
13818 | if Val <= Ureal_0 then | |
13819 | Opt.Time_Slice_Value := 0; | |
13820 | ||
13821 | elsif Val > UR_From_Uint (UI_From_Int (1000)) then | |
13822 | Opt.Time_Slice_Value := 1_000_000_000; | |
13823 | ||
13824 | else | |
13825 | Opt.Time_Slice_Value := | |
13826 | UI_To_Int (UR_To_Uint (Val * UI_From_Int (1_000_000))); | |
13827 | end if; | |
13828 | end if; | |
13829 | end Time_Slice; | |
13830 | ||
13831 | ----------- | |
13832 | -- Title -- | |
13833 | ----------- | |
13834 | ||
13835 | -- pragma Title (TITLING_OPTION [, TITLING OPTION]); | |
13836 | ||
13837 | -- TITLING_OPTION ::= | |
13838 | -- [Title =>] STRING_LITERAL | |
13839 | -- | [Subtitle =>] STRING_LITERAL | |
13840 | ||
13841 | when Pragma_Title => Title : declare | |
13842 | Args : Args_List (1 .. 2); | |
fbf5a39b | 13843 | Names : constant Name_List (1 .. 2) := ( |
996ae0b0 RK |
13844 | Name_Title, |
13845 | Name_Subtitle); | |
13846 | ||
13847 | begin | |
13848 | GNAT_Pragma; | |
13849 | Gather_Associations (Names, Args); | |
7eaa7cdf | 13850 | Store_Note (N); |
996ae0b0 RK |
13851 | |
13852 | for J in 1 .. 2 loop | |
13853 | if Present (Args (J)) then | |
7eaa7cdf | 13854 | Check_Arg_Is_Static_Expression (Args (J), Standard_String); |
996ae0b0 RK |
13855 | end if; |
13856 | end loop; | |
13857 | end Title; | |
13858 | ||
13859 | --------------------- | |
13860 | -- Unchecked_Union -- | |
13861 | --------------------- | |
13862 | ||
13863 | -- pragma Unchecked_Union (first_subtype_LOCAL_NAME) | |
13864 | ||
13865 | when Pragma_Unchecked_Union => Unchecked_Union : declare | |
fbf5a39b | 13866 | Assoc : constant Node_Id := Arg1; |
0f1a6a0b | 13867 | Type_Id : constant Node_Id := Get_Pragma_Arg (Assoc); |
996ae0b0 RK |
13868 | Typ : Entity_Id; |
13869 | Discr : Entity_Id; | |
13870 | Tdef : Node_Id; | |
13871 | Clist : Node_Id; | |
13872 | Vpart : Node_Id; | |
13873 | Comp : Node_Id; | |
13874 | Variant : Node_Id; | |
13875 | ||
13876 | begin | |
a30a01fe | 13877 | Ada_2005_Pragma; |
996ae0b0 RK |
13878 | Check_No_Identifiers; |
13879 | Check_Arg_Count (1); | |
13880 | Check_Arg_Is_Local_Name (Arg1); | |
13881 | ||
13882 | Find_Type (Type_Id); | |
13883 | Typ := Entity (Type_Id); | |
13884 | ||
13885 | if Typ = Any_Type | |
13886 | or else Rep_Item_Too_Early (Typ, N) | |
13887 | then | |
13888 | return; | |
13889 | else | |
13890 | Typ := Underlying_Type (Typ); | |
13891 | end if; | |
13892 | ||
13893 | if Rep_Item_Too_Late (Typ, N) then | |
13894 | return; | |
13895 | end if; | |
13896 | ||
13897 | Check_First_Subtype (Arg1); | |
13898 | ||
13899 | -- Note remaining cases are references to a type in the current | |
13900 | -- declarative part. If we find an error, we post the error on | |
13901 | -- the relevant type declaration at an appropriate point. | |
13902 | ||
13903 | if not Is_Record_Type (Typ) then | |
13904 | Error_Msg_N ("Unchecked_Union must be record type", Typ); | |
13905 | return; | |
13906 | ||
13907 | elsif Is_Tagged_Type (Typ) then | |
13908 | Error_Msg_N ("Unchecked_Union must not be tagged", Typ); | |
13909 | return; | |
13910 | ||
3e7302c3 AC |
13911 | elsif not Has_Discriminants (Typ) then |
13912 | Error_Msg_N | |
13913 | ("Unchecked_Union must have one discriminant", Typ); | |
13914 | return; | |
13915 | ||
13916 | -- Note: in previous versions of GNAT we used to check for limited | |
13917 | -- types and give an error, but in fact the standard does allow | |
13918 | -- Unchecked_Union on limited types, so this check was removed. | |
996ae0b0 | 13919 | |
3e7302c3 AC |
13920 | -- Proceed with basic error checks completed |
13921 | ||
13922 | else | |
996ae0b0 | 13923 | Discr := First_Discriminant (Typ); |
57193e09 TQ |
13924 | while Present (Discr) loop |
13925 | if No (Discriminant_Default_Value (Discr)) then | |
13926 | Error_Msg_N | |
13927 | ("Unchecked_Union discriminant must have default value", | |
13928 | Discr); | |
13929 | end if; | |
0f1a6a0b | 13930 | |
57193e09 TQ |
13931 | Next_Discriminant (Discr); |
13932 | end loop; | |
996ae0b0 RK |
13933 | |
13934 | Tdef := Type_Definition (Declaration_Node (Typ)); | |
13935 | Clist := Component_List (Tdef); | |
13936 | ||
5d09245e AC |
13937 | Comp := First (Component_Items (Clist)); |
13938 | while Present (Comp) loop | |
72e9f2b9 | 13939 | Check_Component (Comp, Typ); |
5d09245e | 13940 | Next (Comp); |
5d09245e AC |
13941 | end loop; |
13942 | ||
996ae0b0 RK |
13943 | if No (Clist) or else No (Variant_Part (Clist)) then |
13944 | Error_Msg_N | |
13945 | ("Unchecked_Union must have variant part", | |
13946 | Tdef); | |
13947 | return; | |
13948 | end if; | |
13949 | ||
13950 | Vpart := Variant_Part (Clist); | |
1d571f3b | 13951 | |
996ae0b0 RK |
13952 | Variant := First (Variants (Vpart)); |
13953 | while Present (Variant) loop | |
72e9f2b9 | 13954 | Check_Variant (Variant, Typ); |
996ae0b0 RK |
13955 | Next (Variant); |
13956 | end loop; | |
13957 | end if; | |
13958 | ||
eaba57fb RD |
13959 | Set_Is_Unchecked_Union (Typ); |
13960 | Set_Convention (Typ, Convention_C); | |
13961 | Set_Has_Unchecked_Union (Base_Type (Typ)); | |
13962 | Set_Is_Unchecked_Union (Base_Type (Typ)); | |
996ae0b0 RK |
13963 | end Unchecked_Union; |
13964 | ||
13965 | ------------------------ | |
13966 | -- Unimplemented_Unit -- | |
13967 | ------------------------ | |
13968 | ||
13969 | -- pragma Unimplemented_Unit; | |
13970 | ||
b3b9865d AC |
13971 | -- Note: this only gives an error if we are generating code, or if |
13972 | -- we are in a generic library unit (where the pragma appears in the | |
13973 | -- body, not in the spec). | |
996ae0b0 RK |
13974 | |
13975 | when Pragma_Unimplemented_Unit => Unimplemented_Unit : declare | |
fbf5a39b AC |
13976 | Cunitent : constant Entity_Id := |
13977 | Cunit_Entity (Get_Source_Unit (Loc)); | |
13978 | Ent_Kind : constant Entity_Kind := | |
13979 | Ekind (Cunitent); | |
996ae0b0 RK |
13980 | |
13981 | begin | |
13982 | GNAT_Pragma; | |
13983 | Check_Arg_Count (0); | |
13984 | ||
13985 | if Operating_Mode = Generate_Code | |
13986 | or else Ent_Kind = E_Generic_Function | |
13987 | or else Ent_Kind = E_Generic_Procedure | |
13988 | or else Ent_Kind = E_Generic_Package | |
13989 | then | |
13990 | Get_Name_String (Chars (Cunitent)); | |
13991 | Set_Casing (Mixed_Case); | |
13992 | Write_Str (Name_Buffer (1 .. Name_Len)); | |
874a0341 | 13993 | Write_Str (" is not supported in this configuration"); |
996ae0b0 RK |
13994 | Write_Eol; |
13995 | raise Unrecoverable_Error; | |
13996 | end if; | |
13997 | end Unimplemented_Unit; | |
13998 | ||
2fa9443e ES |
13999 | ------------------------ |
14000 | -- Universal_Aliasing -- | |
14001 | ------------------------ | |
14002 | ||
14003 | -- pragma Universal_Aliasing [([Entity =>] type_LOCAL_NAME)]; | |
14004 | ||
14005 | when Pragma_Universal_Aliasing => Universal_Alias : declare | |
14006 | E_Id : Entity_Id; | |
14007 | ||
14008 | begin | |
14009 | GNAT_Pragma; | |
14010 | Check_Arg_Count (1); | |
14011 | Check_Optional_Identifier (Arg2, Name_Entity); | |
14012 | Check_Arg_Is_Local_Name (Arg1); | |
0f1a6a0b | 14013 | E_Id := Entity (Get_Pragma_Arg (Arg1)); |
2fa9443e ES |
14014 | |
14015 | if E_Id = Any_Type then | |
14016 | return; | |
14017 | elsif No (E_Id) or else not Is_Type (E_Id) then | |
14018 | Error_Pragma_Arg ("pragma% requires type", Arg1); | |
14019 | end if; | |
14020 | ||
eaba57fb | 14021 | Set_Universal_Aliasing (Implementation_Base_Type (E_Id)); |
2fa9443e ES |
14022 | end Universal_Alias; |
14023 | ||
07fc65c4 GB |
14024 | -------------------- |
14025 | -- Universal_Data -- | |
14026 | -------------------- | |
14027 | ||
fbf5a39b | 14028 | -- pragma Universal_Data [(library_unit_NAME)]; |
07fc65c4 GB |
14029 | |
14030 | when Pragma_Universal_Data => | |
14031 | GNAT_Pragma; | |
fbf5a39b AC |
14032 | |
14033 | -- If this is a configuration pragma, then set the universal | |
b3b9865d AC |
14034 | -- addressing option, otherwise confirm that the pragma satisfies |
14035 | -- the requirements of library unit pragma placement and leave it | |
14036 | -- to the GNAAMP back end to detect the pragma (avoids transitive | |
14037 | -- setting of the option due to withed units). | |
fbf5a39b AC |
14038 | |
14039 | if Is_Configuration_Pragma then | |
14040 | Universal_Addressing_On_AAMP := True; | |
14041 | else | |
14042 | Check_Valid_Library_Unit_Pragma; | |
14043 | end if; | |
07fc65c4 GB |
14044 | |
14045 | if not AAMP_On_Target then | |
14046 | Error_Pragma ("?pragma% ignored (applies only to AAMP)"); | |
14047 | end if; | |
14048 | ||
9d77af56 RD |
14049 | ---------------- |
14050 | -- Unmodified -- | |
14051 | ---------------- | |
14052 | ||
14053 | -- pragma Unmodified (local_Name {, local_Name}); | |
14054 | ||
14055 | when Pragma_Unmodified => Unmodified : declare | |
14056 | Arg_Node : Node_Id; | |
14057 | Arg_Expr : Node_Id; | |
14058 | Arg_Ent : Entity_Id; | |
14059 | ||
14060 | begin | |
14061 | GNAT_Pragma; | |
14062 | Check_At_Least_N_Arguments (1); | |
14063 | ||
14064 | -- Loop through arguments | |
14065 | ||
14066 | Arg_Node := Arg1; | |
14067 | while Present (Arg_Node) loop | |
14068 | Check_No_Identifier (Arg_Node); | |
14069 | ||
b3b9865d AC |
14070 | -- Note: the analyze call done by Check_Arg_Is_Local_Name will |
14071 | -- in fact generate reference, so that the entity will have a | |
14072 | -- reference, which will inhibit any warnings about it not | |
14073 | -- being referenced, and also properly show up in the ali file | |
14074 | -- as a reference. But this reference is recorded before the | |
14075 | -- Has_Pragma_Unreferenced flag is set, so that no warning is | |
14076 | -- generated for this reference. | |
9d77af56 RD |
14077 | |
14078 | Check_Arg_Is_Local_Name (Arg_Node); | |
14079 | Arg_Expr := Get_Pragma_Arg (Arg_Node); | |
14080 | ||
14081 | if Is_Entity_Name (Arg_Expr) then | |
14082 | Arg_Ent := Entity (Arg_Expr); | |
14083 | ||
14084 | if not Is_Assignable (Arg_Ent) then | |
14085 | Error_Pragma_Arg | |
14086 | ("pragma% can only be applied to a variable", | |
14087 | Arg_Expr); | |
14088 | else | |
eaba57fb | 14089 | Set_Has_Pragma_Unmodified (Arg_Ent); |
9d77af56 RD |
14090 | end if; |
14091 | end if; | |
14092 | ||
14093 | Next (Arg_Node); | |
14094 | end loop; | |
14095 | end Unmodified; | |
14096 | ||
07fc65c4 GB |
14097 | ------------------ |
14098 | -- Unreferenced -- | |
14099 | ------------------ | |
14100 | ||
14101 | -- pragma Unreferenced (local_Name {, local_Name}); | |
14102 | ||
ac9e9918 RD |
14103 | -- or when used in a context clause: |
14104 | ||
14105 | -- pragma Unreferenced (library_unit_NAME {, library_unit_NAME} | |
14106 | ||
07fc65c4 GB |
14107 | when Pragma_Unreferenced => Unreferenced : declare |
14108 | Arg_Node : Node_Id; | |
14109 | Arg_Expr : Node_Id; | |
fbf5a39b | 14110 | Arg_Ent : Entity_Id; |
ac9e9918 | 14111 | Citem : Node_Id; |
07fc65c4 GB |
14112 | |
14113 | begin | |
14114 | GNAT_Pragma; | |
14115 | Check_At_Least_N_Arguments (1); | |
14116 | ||
ac9e9918 | 14117 | -- Check case of appearing within context clause |
07fc65c4 | 14118 | |
ac9e9918 | 14119 | if Is_In_Context_Clause then |
07fc65c4 | 14120 | |
c690a2ec RD |
14121 | -- The arguments must all be units mentioned in a with clause |
14122 | -- in the same context clause. Note we already checked (in | |
14123 | -- Par.Prag) that the arguments are either identifiers or | |
14124 | -- selected components. | |
07fc65c4 | 14125 | |
ac9e9918 RD |
14126 | Arg_Node := Arg1; |
14127 | while Present (Arg_Node) loop | |
14128 | Citem := First (List_Containing (N)); | |
14129 | while Citem /= N loop | |
14130 | if Nkind (Citem) = N_With_Clause | |
0f1a6a0b AC |
14131 | and then |
14132 | Same_Name (Name (Citem), Get_Pragma_Arg (Arg_Node)) | |
ac9e9918 RD |
14133 | then |
14134 | Set_Has_Pragma_Unreferenced | |
14135 | (Cunit_Entity | |
14136 | (Get_Source_Unit | |
14137 | (Library_Unit (Citem)))); | |
0f1a6a0b AC |
14138 | Set_Unit_Name |
14139 | (Get_Pragma_Arg (Arg_Node), Name (Citem)); | |
ac9e9918 RD |
14140 | exit; |
14141 | end if; | |
fbf5a39b | 14142 | |
ac9e9918 RD |
14143 | Next (Citem); |
14144 | end loop; | |
fbf5a39b | 14145 | |
ac9e9918 RD |
14146 | if Citem = N then |
14147 | Error_Pragma_Arg | |
14148 | ("argument of pragma% is not with'ed unit", Arg_Node); | |
fbf5a39b AC |
14149 | end if; |
14150 | ||
ac9e9918 RD |
14151 | Next (Arg_Node); |
14152 | end loop; | |
07fc65c4 | 14153 | |
ac9e9918 RD |
14154 | -- Case of not in list of context items |
14155 | ||
14156 | else | |
14157 | Arg_Node := Arg1; | |
14158 | while Present (Arg_Node) loop | |
14159 | Check_No_Identifier (Arg_Node); | |
14160 | ||
14161 | -- Note: the analyze call done by Check_Arg_Is_Local_Name | |
14162 | -- will in fact generate reference, so that the entity will | |
14163 | -- have a reference, which will inhibit any warnings about | |
14164 | -- it not being referenced, and also properly show up in the | |
14165 | -- ali file as a reference. But this reference is recorded | |
14166 | -- before the Has_Pragma_Unreferenced flag is set, so that | |
14167 | -- no warning is generated for this reference. | |
14168 | ||
14169 | Check_Arg_Is_Local_Name (Arg_Node); | |
14170 | Arg_Expr := Get_Pragma_Arg (Arg_Node); | |
14171 | ||
14172 | if Is_Entity_Name (Arg_Expr) then | |
14173 | Arg_Ent := Entity (Arg_Expr); | |
14174 | ||
14175 | -- If the entity is overloaded, the pragma applies to the | |
14176 | -- most recent overloading, as documented. In this case, | |
14177 | -- name resolution does not generate a reference, so it | |
14178 | -- must be done here explicitly. | |
14179 | ||
14180 | if Is_Overloaded (Arg_Expr) then | |
14181 | Generate_Reference (Arg_Ent, N); | |
14182 | end if; | |
14183 | ||
eaba57fb | 14184 | Set_Has_Pragma_Unreferenced (Arg_Ent); |
ac9e9918 RD |
14185 | end if; |
14186 | ||
14187 | Next (Arg_Node); | |
14188 | end loop; | |
14189 | end if; | |
07fc65c4 GB |
14190 | end Unreferenced; |
14191 | ||
874a0341 RD |
14192 | -------------------------- |
14193 | -- Unreferenced_Objects -- | |
14194 | -------------------------- | |
14195 | ||
14196 | -- pragma Unreferenced_Objects (local_Name {, local_Name}); | |
14197 | ||
14198 | when Pragma_Unreferenced_Objects => Unreferenced_Objects : declare | |
14199 | Arg_Node : Node_Id; | |
14200 | Arg_Expr : Node_Id; | |
14201 | ||
14202 | begin | |
14203 | GNAT_Pragma; | |
14204 | Check_At_Least_N_Arguments (1); | |
14205 | ||
14206 | Arg_Node := Arg1; | |
14207 | while Present (Arg_Node) loop | |
14208 | Check_No_Identifier (Arg_Node); | |
14209 | Check_Arg_Is_Local_Name (Arg_Node); | |
14210 | Arg_Expr := Get_Pragma_Arg (Arg_Node); | |
14211 | ||
14212 | if not Is_Entity_Name (Arg_Expr) | |
14213 | or else not Is_Type (Entity (Arg_Expr)) | |
14214 | then | |
14215 | Error_Pragma_Arg | |
14216 | ("argument for pragma% must be type or subtype", Arg_Node); | |
14217 | end if; | |
14218 | ||
eaba57fb | 14219 | Set_Has_Pragma_Unreferenced_Objects (Entity (Arg_Expr)); |
874a0341 RD |
14220 | Next (Arg_Node); |
14221 | end loop; | |
14222 | end Unreferenced_Objects; | |
14223 | ||
996ae0b0 RK |
14224 | ------------------------------ |
14225 | -- Unreserve_All_Interrupts -- | |
14226 | ------------------------------ | |
14227 | ||
14228 | -- pragma Unreserve_All_Interrupts; | |
14229 | ||
14230 | when Pragma_Unreserve_All_Interrupts => | |
14231 | GNAT_Pragma; | |
14232 | Check_Arg_Count (0); | |
14233 | ||
14234 | if In_Extended_Main_Code_Unit (Main_Unit_Entity) then | |
14235 | Unreserve_All_Interrupts := True; | |
14236 | end if; | |
14237 | ||
14238 | ---------------- | |
14239 | -- Unsuppress -- | |
14240 | ---------------- | |
14241 | ||
14242 | -- pragma Unsuppress (IDENTIFIER [, [On =>] NAME]); | |
14243 | ||
14244 | when Pragma_Unsuppress => | |
a30a01fe | 14245 | Ada_2005_Pragma; |
996ae0b0 RK |
14246 | Process_Suppress_Unsuppress (False); |
14247 | ||
14248 | ------------------- | |
14249 | -- Use_VADS_Size -- | |
14250 | ------------------- | |
14251 | ||
14252 | -- pragma Use_VADS_Size; | |
14253 | ||
14254 | when Pragma_Use_VADS_Size => | |
14255 | GNAT_Pragma; | |
14256 | Check_Arg_Count (0); | |
14257 | Check_Valid_Configuration_Pragma; | |
14258 | Use_VADS_Size := True; | |
14259 | ||
14260 | --------------------- | |
14261 | -- Validity_Checks -- | |
14262 | --------------------- | |
14263 | ||
14264 | -- pragma Validity_Checks (On | Off | ALL_CHECKS | STRING_LITERAL); | |
14265 | ||
14266 | when Pragma_Validity_Checks => Validity_Checks : declare | |
0f1a6a0b | 14267 | A : constant Node_Id := Get_Pragma_Arg (Arg1); |
996ae0b0 RK |
14268 | S : String_Id; |
14269 | C : Char_Code; | |
14270 | ||
14271 | begin | |
14272 | GNAT_Pragma; | |
14273 | Check_Arg_Count (1); | |
996ae0b0 RK |
14274 | Check_No_Identifiers; |
14275 | ||
14276 | if Nkind (A) = N_String_Literal then | |
14277 | S := Strval (A); | |
14278 | ||
14279 | declare | |
fbf5a39b | 14280 | Slen : constant Natural := Natural (String_Length (S)); |
996ae0b0 RK |
14281 | Options : String (1 .. Slen); |
14282 | J : Natural; | |
14283 | ||
14284 | begin | |
14285 | J := 1; | |
14286 | loop | |
14287 | C := Get_String_Char (S, Int (J)); | |
14288 | exit when not In_Character_Range (C); | |
14289 | Options (J) := Get_Character (C); | |
14290 | ||
14291 | if J = Slen then | |
14292 | Set_Validity_Check_Options (Options); | |
14293 | exit; | |
14294 | else | |
14295 | J := J + 1; | |
14296 | end if; | |
14297 | end loop; | |
14298 | end; | |
14299 | ||
14300 | elsif Nkind (A) = N_Identifier then | |
996ae0b0 RK |
14301 | if Chars (A) = Name_All_Checks then |
14302 | Set_Validity_Check_Options ("a"); | |
996ae0b0 RK |
14303 | elsif Chars (A) = Name_On then |
14304 | Validity_Checks_On := True; | |
996ae0b0 RK |
14305 | elsif Chars (A) = Name_Off then |
14306 | Validity_Checks_On := False; | |
996ae0b0 RK |
14307 | end if; |
14308 | end if; | |
14309 | end Validity_Checks; | |
14310 | ||
14311 | -------------- | |
14312 | -- Volatile -- | |
14313 | -------------- | |
14314 | ||
14315 | -- pragma Volatile (LOCAL_NAME); | |
14316 | ||
14317 | when Pragma_Volatile => | |
14318 | Process_Atomic_Shared_Volatile; | |
14319 | ||
14320 | ------------------------- | |
14321 | -- Volatile_Components -- | |
14322 | ------------------------- | |
14323 | ||
14324 | -- pragma Volatile_Components (array_LOCAL_NAME); | |
14325 | ||
14326 | -- Volatile is handled by the same circuit as Atomic_Components | |
14327 | ||
14328 | -------------- | |
14329 | -- Warnings -- | |
14330 | -------------- | |
14331 | ||
ac9e9918 RD |
14332 | -- pragma Warnings (On | Off); |
14333 | -- pragma Warnings (On | Off, LOCAL_NAME); | |
f02b8bb8 | 14334 | -- pragma Warnings (static_string_EXPRESSION); |
ac9e9918 | 14335 | -- pragma Warnings (On | Off, STRING_LITERAL); |
996ae0b0 | 14336 | |
fbf5a39b | 14337 | when Pragma_Warnings => Warnings : begin |
996ae0b0 RK |
14338 | GNAT_Pragma; |
14339 | Check_At_Least_N_Arguments (1); | |
996ae0b0 RK |
14340 | Check_No_Identifiers; |
14341 | ||
cca5ded0 AC |
14342 | -- If debug flag -gnatd.i is set, pragma is ignored |
14343 | ||
14344 | if Debug_Flag_Dot_I then | |
14345 | return; | |
14346 | end if; | |
14347 | ||
14348 | -- Process various forms of the pragma | |
14349 | ||
ac9e9918 RD |
14350 | declare |
14351 | Argx : constant Node_Id := Get_Pragma_Arg (Arg1); | |
996ae0b0 | 14352 | |
ac9e9918 RD |
14353 | begin |
14354 | -- One argument case | |
14355 | ||
14356 | if Arg_Count = 1 then | |
f02b8bb8 | 14357 | |
f02b8bb8 RD |
14358 | -- On/Off one argument case was processed by parser |
14359 | ||
14360 | if Nkind (Argx) = N_Identifier | |
14361 | and then | |
14362 | (Chars (Argx) = Name_On | |
14363 | or else | |
14364 | Chars (Argx) = Name_Off) | |
14365 | then | |
14366 | null; | |
14367 | ||
ac9e9918 RD |
14368 | -- One argument case must be ON/OFF or static string expr |
14369 | ||
14370 | elsif not Is_Static_String_Expression (Arg1) then | |
14371 | Error_Pragma_Arg | |
14372 | ("argument of pragma% must be On/Off or " & | |
6e1ee5c3 | 14373 | "static string expression", Arg1); |
f02b8bb8 | 14374 | |
ac9e9918 RD |
14375 | -- One argument string expression case |
14376 | ||
14377 | else | |
f02b8bb8 RD |
14378 | declare |
14379 | Lit : constant Node_Id := Expr_Value_S (Argx); | |
14380 | Str : constant String_Id := Strval (Lit); | |
874a0341 | 14381 | Len : constant Nat := String_Length (Str); |
f02b8bb8 | 14382 | C : Char_Code; |
874a0341 RD |
14383 | J : Nat; |
14384 | OK : Boolean; | |
14385 | Chr : Character; | |
f02b8bb8 RD |
14386 | |
14387 | begin | |
874a0341 RD |
14388 | J := 1; |
14389 | while J <= Len loop | |
f02b8bb8 | 14390 | C := Get_String_Char (Str, J); |
874a0341 | 14391 | OK := In_Character_Range (C); |
f02b8bb8 | 14392 | |
874a0341 RD |
14393 | if OK then |
14394 | Chr := Get_Character (C); | |
14395 | ||
14396 | -- Dot case | |
14397 | ||
14398 | if J < Len and then Chr = '.' then | |
14399 | J := J + 1; | |
14400 | C := Get_String_Char (Str, J); | |
14401 | Chr := Get_Character (C); | |
14402 | ||
14403 | if not Set_Dot_Warning_Switch (Chr) then | |
14404 | Error_Pragma_Arg | |
14405 | ("invalid warning switch character " & | |
14406 | '.' & Chr, Arg1); | |
14407 | end if; | |
14408 | ||
14409 | -- Non-Dot case | |
14410 | ||
14411 | else | |
14412 | OK := Set_Warning_Switch (Chr); | |
14413 | end if; | |
14414 | end if; | |
14415 | ||
14416 | if not OK then | |
f02b8bb8 | 14417 | Error_Pragma_Arg |
874a0341 RD |
14418 | ("invalid warning switch character " & Chr, |
14419 | Arg1); | |
f02b8bb8 | 14420 | end if; |
874a0341 RD |
14421 | |
14422 | J := J + 1; | |
f02b8bb8 RD |
14423 | end loop; |
14424 | end; | |
14425 | end if; | |
f02b8bb8 | 14426 | |
ac9e9918 | 14427 | -- Two or more arguments (must be two) |
f02b8bb8 | 14428 | |
ac9e9918 RD |
14429 | else |
14430 | Check_Arg_Is_One_Of (Arg1, Name_On, Name_Off); | |
14431 | Check_At_Most_N_Arguments (2); | |
996ae0b0 | 14432 | |
ac9e9918 RD |
14433 | declare |
14434 | E_Id : Node_Id; | |
14435 | E : Entity_Id; | |
14436 | Err : Boolean; | |
996ae0b0 | 14437 | |
ac9e9918 | 14438 | begin |
0f1a6a0b | 14439 | E_Id := Get_Pragma_Arg (Arg2); |
ac9e9918 | 14440 | Analyze (E_Id); |
996ae0b0 | 14441 | |
ac9e9918 RD |
14442 | -- In the expansion of an inlined body, a reference to |
14443 | -- the formal may be wrapped in a conversion if the | |
14444 | -- actual is a conversion. Retrieve the real entity name. | |
5b4994bc | 14445 | |
ac9e9918 | 14446 | if (In_Instance_Body |
8751a35c | 14447 | or else In_Inlined_Body) |
ac9e9918 RD |
14448 | and then Nkind (E_Id) = N_Unchecked_Type_Conversion |
14449 | then | |
14450 | E_Id := Expression (E_Id); | |
14451 | end if; | |
efdfd311 | 14452 | |
ac9e9918 | 14453 | -- Entity name case |
996ae0b0 | 14454 | |
ac9e9918 RD |
14455 | if Is_Entity_Name (E_Id) then |
14456 | E := Entity (E_Id); | |
996ae0b0 | 14457 | |
ac9e9918 RD |
14458 | if E = Any_Id then |
14459 | return; | |
14460 | else | |
14461 | loop | |
14462 | Set_Warnings_Off | |
0f1a6a0b AC |
14463 | (E, (Chars (Get_Pragma_Arg (Arg1)) = |
14464 | Name_Off)); | |
ac9e9918 | 14465 | |
0f1a6a0b | 14466 | if Chars (Get_Pragma_Arg (Arg1)) = Name_Off |
1b24ada5 RD |
14467 | and then Warn_On_Warnings_Off |
14468 | then | |
14469 | Warnings_Off_Pragmas.Append ((N, E)); | |
14470 | end if; | |
14471 | ||
ac9e9918 RD |
14472 | if Is_Enumeration_Type (E) then |
14473 | declare | |
14474 | Lit : Entity_Id; | |
14475 | begin | |
14476 | Lit := First_Literal (E); | |
14477 | while Present (Lit) loop | |
14478 | Set_Warnings_Off (Lit); | |
14479 | Next_Literal (Lit); | |
14480 | end loop; | |
14481 | end; | |
14482 | end if; | |
14483 | ||
14484 | exit when No (Homonym (E)); | |
14485 | E := Homonym (E); | |
14486 | end loop; | |
996ae0b0 RK |
14487 | end if; |
14488 | ||
ac9e9918 | 14489 | -- Error if not entity or static string literal case |
f02b8bb8 | 14490 | |
ac9e9918 RD |
14491 | elsif not Is_Static_String_Expression (Arg2) then |
14492 | Error_Pragma_Arg | |
14493 | ("second argument of pragma% must be entity " & | |
14494 | "name or static string expression", Arg2); | |
14495 | ||
14496 | -- String literal case | |
14497 | ||
14498 | else | |
14499 | String_To_Name_Buffer | |
0f1a6a0b | 14500 | (Strval (Expr_Value_S (Get_Pragma_Arg (Arg2)))); |
ac9e9918 | 14501 | |
c690a2ec RD |
14502 | -- Note on configuration pragma case: If this is a |
14503 | -- configuration pragma, then for an OFF pragma, we | |
14504 | -- just set Config True in the call, which is all | |
14505 | -- that needs to be done. For the case of ON, this | |
14506 | -- is normally an error, unless it is canceling the | |
14507 | -- effect of a previous OFF pragma in the same file. | |
14508 | -- In any other case, an error will be signalled (ON | |
14509 | -- with no matching OFF). | |
14510 | ||
14511 | if Chars (Argx) = Name_Off then | |
14512 | Set_Specific_Warning_Off | |
14513 | (Loc, Name_Buffer (1 .. Name_Len), | |
14514 | Config => Is_Configuration_Pragma); | |
14515 | ||
14516 | elsif Chars (Argx) = Name_On then | |
14517 | Set_Specific_Warning_On | |
14518 | (Loc, Name_Buffer (1 .. Name_Len), Err); | |
14519 | ||
14520 | if Err then | |
14521 | Error_Msg | |
14522 | ("?pragma Warnings On with no " & | |
14523 | "matching Warnings Off", | |
14524 | Loc); | |
ac9e9918 RD |
14525 | end if; |
14526 | end if; | |
14527 | end if; | |
14528 | end; | |
14529 | end if; | |
14530 | end; | |
fbf5a39b | 14531 | end Warnings; |
996ae0b0 RK |
14532 | |
14533 | ------------------- | |
14534 | -- Weak_External -- | |
14535 | ------------------- | |
14536 | ||
14537 | -- pragma Weak_External ([Entity =>] LOCAL_NAME); | |
14538 | ||
14539 | when Pragma_Weak_External => Weak_External : declare | |
14540 | Ent : Entity_Id; | |
14541 | ||
14542 | begin | |
14543 | GNAT_Pragma; | |
14544 | Check_Arg_Count (1); | |
14545 | Check_Optional_Identifier (Arg1, Name_Entity); | |
14546 | Check_Arg_Is_Library_Level_Local_Name (Arg1); | |
0f1a6a0b | 14547 | Ent := Entity (Get_Pragma_Arg (Arg1)); |
996ae0b0 RK |
14548 | |
14549 | if Rep_Item_Too_Early (Ent, N) then | |
14550 | return; | |
14551 | else | |
14552 | Ent := Underlying_Type (Ent); | |
14553 | end if; | |
14554 | ||
14555 | -- The only processing required is to link this item on to the | |
14556 | -- list of rep items for the given entity. This is accomplished | |
14557 | -- by the call to Rep_Item_Too_Late (when no error is detected | |
14558 | -- and False is returned). | |
14559 | ||
14560 | if Rep_Item_Too_Late (Ent, N) then | |
14561 | return; | |
14562 | else | |
14563 | Set_Has_Gigi_Rep_Item (Ent); | |
14564 | end if; | |
14565 | end Weak_External; | |
14566 | ||
ac9e9918 RD |
14567 | ----------------------------- |
14568 | -- Wide_Character_Encoding -- | |
14569 | ----------------------------- | |
14570 | ||
14571 | -- pragma Wide_Character_Encoding (IDENTIFIER); | |
14572 | ||
14573 | when Pragma_Wide_Character_Encoding => | |
a30a01fe | 14574 | GNAT_Pragma; |
ac9e9918 RD |
14575 | |
14576 | -- Nothing to do, handled in parser. Note that we do not enforce | |
14577 | -- configuration pragma placement, this pragma can appear at any | |
14578 | -- place in the source, allowing mixed encodings within a single | |
14579 | -- source program. | |
14580 | ||
14581 | null; | |
14582 | ||
fbf5a39b AC |
14583 | -------------------- |
14584 | -- Unknown_Pragma -- | |
14585 | -------------------- | |
14586 | ||
14587 | -- Should be impossible, since the case of an unknown pragma is | |
14588 | -- separately processed before the case statement is entered. | |
14589 | ||
14590 | when Unknown_Pragma => | |
14591 | raise Program_Error; | |
996ae0b0 RK |
14592 | end case; |
14593 | ||
6e1ee5c3 AC |
14594 | -- AI05-0144: detect dangerous order dependence. Disabled for now, |
14595 | -- until AI is formally approved. | |
14596 | ||
14597 | -- Check_Order_Dependence; | |
14598 | ||
996ae0b0 RK |
14599 | exception |
14600 | when Pragma_Exit => null; | |
996ae0b0 RK |
14601 | end Analyze_Pragma; |
14602 | ||
dac3bede YM |
14603 | ----------------------------- |
14604 | -- Analyze_TC_In_Decl_Part -- | |
14605 | ----------------------------- | |
14606 | ||
14607 | procedure Analyze_TC_In_Decl_Part (N : Node_Id; S : Entity_Id) is | |
14608 | begin | |
14609 | -- Install formals and push subprogram spec onto scope stack so that we | |
14610 | -- can see the formals from the pragma. | |
14611 | ||
14612 | Install_Formals (S); | |
14613 | Push_Scope (S); | |
14614 | ||
14615 | -- Preanalyze the boolean expressions, we treat these as spec | |
14616 | -- expressions (i.e. similar to a default expression). | |
14617 | ||
8c18a165 AC |
14618 | Preanalyze_TC_Args (N, |
14619 | Get_Requires_From_Test_Case_Pragma (N), | |
dac3bede YM |
14620 | Get_Ensures_From_Test_Case_Pragma (N)); |
14621 | ||
14622 | -- Remove the subprogram from the scope stack now that the pre-analysis | |
14623 | -- of the expressions in the test-case is done. | |
14624 | ||
14625 | End_Scope; | |
14626 | end Analyze_TC_In_Decl_Part; | |
14627 | ||
9b3956dd RD |
14628 | -------------------- |
14629 | -- Check_Disabled -- | |
14630 | -------------------- | |
14631 | ||
14632 | function Check_Disabled (Nam : Name_Id) return Boolean is | |
14633 | PP : Node_Id; | |
14634 | ||
14635 | begin | |
14636 | -- Loop through entries in check policy list | |
14637 | ||
14638 | PP := Opt.Check_Policy_List; | |
14639 | loop | |
14640 | -- If there are no specific entries that matched, then nothing is | |
14641 | -- disabled, so return False. | |
14642 | ||
14643 | if No (PP) then | |
14644 | return False; | |
14645 | ||
14646 | -- Here we have an entry see if it matches | |
14647 | ||
14648 | else | |
14649 | declare | |
14650 | PPA : constant List_Id := Pragma_Argument_Associations (PP); | |
14651 | begin | |
14652 | if Nam = Chars (Get_Pragma_Arg (First (PPA))) then | |
14653 | return Chars (Get_Pragma_Arg (Last (PPA))) = Name_Disable; | |
14654 | else | |
14655 | PP := Next_Pragma (PP); | |
14656 | end if; | |
14657 | end; | |
14658 | end if; | |
14659 | end loop; | |
14660 | end Check_Disabled; | |
14661 | ||
21d27997 RD |
14662 | ------------------- |
14663 | -- Check_Enabled -- | |
14664 | ------------------- | |
14665 | ||
14666 | function Check_Enabled (Nam : Name_Id) return Boolean is | |
14667 | PP : Node_Id; | |
14668 | ||
14669 | begin | |
8110ee3b RD |
14670 | -- Loop through entries in check policy list |
14671 | ||
21d27997 RD |
14672 | PP := Opt.Check_Policy_List; |
14673 | loop | |
8110ee3b RD |
14674 | -- If there are no specific entries that matched, then we let the |
14675 | -- setting of assertions govern. Note that this provides the needed | |
14676 | -- compatibility with the RM for the cases of assertion, invariant, | |
14677 | -- precondition, predicate, and postcondition. | |
14678 | ||
21d27997 RD |
14679 | if No (PP) then |
14680 | return Assertions_Enabled; | |
14681 | ||
8110ee3b | 14682 | -- Here we have an entry see if it matches |
21d27997 RD |
14683 | |
14684 | else | |
8110ee3b RD |
14685 | declare |
14686 | PPA : constant List_Id := Pragma_Argument_Associations (PP); | |
14687 | ||
14688 | begin | |
14689 | if Nam = Chars (Get_Pragma_Arg (First (PPA))) then | |
14690 | case (Chars (Get_Pragma_Arg (Last (PPA)))) is | |
14691 | when Name_On | Name_Check => | |
14692 | return True; | |
14693 | when Name_Off | Name_Ignore => | |
14694 | return False; | |
14695 | when others => | |
14696 | raise Program_Error; | |
14697 | end case; | |
14698 | ||
14699 | else | |
14700 | PP := Next_Pragma (PP); | |
14701 | end if; | |
14702 | end; | |
21d27997 RD |
14703 | end if; |
14704 | end loop; | |
14705 | end Check_Enabled; | |
14706 | ||
fbf5a39b AC |
14707 | --------------------------------- |
14708 | -- Delay_Config_Pragma_Analyze -- | |
14709 | --------------------------------- | |
14710 | ||
14711 | function Delay_Config_Pragma_Analyze (N : Node_Id) return Boolean is | |
14712 | begin | |
1b24ada5 | 14713 | return Pragma_Name (N) = Name_Interrupt_State |
ac9e9918 | 14714 | or else |
1b24ada5 | 14715 | Pragma_Name (N) = Name_Priority_Specific_Dispatching; |
fbf5a39b AC |
14716 | end Delay_Config_Pragma_Analyze; |
14717 | ||
996ae0b0 RK |
14718 | ------------------------- |
14719 | -- Get_Base_Subprogram -- | |
14720 | ------------------------- | |
14721 | ||
14722 | function Get_Base_Subprogram (Def_Id : Entity_Id) return Entity_Id is | |
14723 | Result : Entity_Id; | |
14724 | ||
14725 | begin | |
996ae0b0 RK |
14726 | -- Follow subprogram renaming chain |
14727 | ||
1d571f3b | 14728 | Result := Def_Id; |
996ae0b0 RK |
14729 | while Is_Subprogram (Result) |
14730 | and then | |
53f29d4f AC |
14731 | Nkind (Parent (Declaration_Node (Result))) = |
14732 | N_Subprogram_Renaming_Declaration | |
996ae0b0 RK |
14733 | and then Present (Alias (Result)) |
14734 | loop | |
14735 | Result := Alias (Result); | |
14736 | end loop; | |
14737 | ||
14738 | return Result; | |
14739 | end Get_Base_Subprogram; | |
14740 | ||
21d27997 RD |
14741 | ---------------- |
14742 | -- Initialize -- | |
14743 | ---------------- | |
14744 | ||
14745 | procedure Initialize is | |
14746 | begin | |
14747 | Externals.Init; | |
14748 | end Initialize; | |
14749 | ||
5950a3ac AC |
14750 | ----------------------------- |
14751 | -- Is_Config_Static_String -- | |
14752 | ----------------------------- | |
14753 | ||
14754 | function Is_Config_Static_String (Arg : Node_Id) return Boolean is | |
14755 | ||
14756 | function Add_Config_Static_String (Arg : Node_Id) return Boolean; | |
b3b9865d AC |
14757 | -- This is an internal recursive function that is just like the outer |
14758 | -- function except that it adds the string to the name buffer rather | |
14759 | -- than placing the string in the name buffer. | |
5950a3ac AC |
14760 | |
14761 | ------------------------------ | |
14762 | -- Add_Config_Static_String -- | |
14763 | ------------------------------ | |
14764 | ||
14765 | function Add_Config_Static_String (Arg : Node_Id) return Boolean is | |
14766 | N : Node_Id; | |
14767 | C : Char_Code; | |
14768 | ||
14769 | begin | |
14770 | N := Arg; | |
14771 | ||
14772 | if Nkind (N) = N_Op_Concat then | |
14773 | if Add_Config_Static_String (Left_Opnd (N)) then | |
14774 | N := Right_Opnd (N); | |
14775 | else | |
14776 | return False; | |
14777 | end if; | |
14778 | end if; | |
14779 | ||
14780 | if Nkind (N) /= N_String_Literal then | |
14781 | Error_Msg_N ("string literal expected for pragma argument", N); | |
14782 | return False; | |
14783 | ||
14784 | else | |
14785 | for J in 1 .. String_Length (Strval (N)) loop | |
14786 | C := Get_String_Char (Strval (N), J); | |
14787 | ||
14788 | if not In_Character_Range (C) then | |
14789 | Error_Msg | |
14790 | ("string literal contains invalid wide character", | |
14791 | Sloc (N) + 1 + Source_Ptr (J)); | |
14792 | return False; | |
14793 | end if; | |
14794 | ||
14795 | Add_Char_To_Name_Buffer (Get_Character (C)); | |
14796 | end loop; | |
14797 | end if; | |
14798 | ||
14799 | return True; | |
14800 | end Add_Config_Static_String; | |
14801 | ||
f3d57416 | 14802 | -- Start of processing for Is_Config_Static_String |
5950a3ac AC |
14803 | |
14804 | begin | |
8a36a0cc | 14805 | |
5950a3ac AC |
14806 | Name_Len := 0; |
14807 | return Add_Config_Static_String (Arg); | |
14808 | end Is_Config_Static_String; | |
14809 | ||
fbf5a39b AC |
14810 | ----------------------------------------- |
14811 | -- Is_Non_Significant_Pragma_Reference -- | |
14812 | ----------------------------------------- | |
14813 | ||
14814 | -- This function makes use of the following static table which indicates | |
95cb33a5 | 14815 | -- whether a given pragma is significant. |
fbf5a39b | 14816 | |
95cb33a5 | 14817 | -- -1 indicates that references in any argument position are significant |
308e6f3a RW |
14818 | -- 0 indicates that appearance in any argument is not significant |
14819 | -- +n indicates that appearance as argument n is significant, but all | |
95cb33a5 AC |
14820 | -- other arguments are not significant |
14821 | -- 99 special processing required (e.g. for pragma Check) | |
8a36a0cc | 14822 | |
21d27997 | 14823 | Sig_Flags : constant array (Pragma_Id) of Int := |
12b4d338 AC |
14824 | (Pragma_AST_Entry => -1, |
14825 | Pragma_Abort_Defer => -1, | |
14826 | Pragma_Ada_83 => -1, | |
14827 | Pragma_Ada_95 => -1, | |
14828 | Pragma_Ada_05 => -1, | |
14829 | Pragma_Ada_2005 => -1, | |
14830 | Pragma_Ada_12 => -1, | |
14831 | Pragma_Ada_2012 => -1, | |
14832 | Pragma_All_Calls_Remote => -1, | |
14833 | Pragma_Annotate => -1, | |
14834 | Pragma_Assert => -1, | |
14835 | Pragma_Assertion_Policy => 0, | |
14836 | Pragma_Assume_No_Invalid_Values => 0, | |
14837 | Pragma_Asynchronous => -1, | |
14838 | Pragma_Atomic => 0, | |
14839 | Pragma_Atomic_Components => 0, | |
14840 | Pragma_Attach_Handler => -1, | |
14841 | Pragma_Check => 99, | |
14842 | Pragma_Check_Name => 0, | |
14843 | Pragma_Check_Policy => 0, | |
14844 | Pragma_CIL_Constructor => -1, | |
14845 | Pragma_CPP_Class => 0, | |
14846 | Pragma_CPP_Constructor => 0, | |
14847 | Pragma_CPP_Virtual => 0, | |
14848 | Pragma_CPP_Vtable => 0, | |
14849 | Pragma_CPU => -1, | |
14850 | Pragma_C_Pass_By_Copy => 0, | |
14851 | Pragma_Comment => 0, | |
14852 | Pragma_Common_Object => -1, | |
14853 | Pragma_Compile_Time_Error => -1, | |
14854 | Pragma_Compile_Time_Warning => -1, | |
14855 | Pragma_Compiler_Unit => 0, | |
14856 | Pragma_Complete_Representation => 0, | |
14857 | Pragma_Complex_Representation => 0, | |
14858 | Pragma_Component_Alignment => -1, | |
14859 | Pragma_Controlled => 0, | |
14860 | Pragma_Convention => 0, | |
14861 | Pragma_Convention_Identifier => 0, | |
14862 | Pragma_Debug => -1, | |
14863 | Pragma_Debug_Policy => 0, | |
14864 | Pragma_Detect_Blocking => -1, | |
14865 | Pragma_Default_Storage_Pool => -1, | |
14866 | Pragma_Dimension => -1, | |
14867 | Pragma_Disable_Atomic_Synchronization => -1, | |
14868 | Pragma_Discard_Names => 0, | |
14869 | Pragma_Dispatching_Domain => -1, | |
14870 | Pragma_Elaborate => -1, | |
14871 | Pragma_Elaborate_All => -1, | |
14872 | Pragma_Elaborate_Body => -1, | |
14873 | Pragma_Elaboration_Checks => -1, | |
14874 | Pragma_Eliminate => -1, | |
14875 | Pragma_Enable_Atomic_Synchronization => -1, | |
14876 | Pragma_Export => -1, | |
14877 | Pragma_Export_Exception => -1, | |
14878 | Pragma_Export_Function => -1, | |
14879 | Pragma_Export_Object => -1, | |
14880 | Pragma_Export_Procedure => -1, | |
14881 | Pragma_Export_Value => -1, | |
14882 | Pragma_Export_Valued_Procedure => -1, | |
14883 | Pragma_Extend_System => -1, | |
14884 | Pragma_Extensions_Allowed => -1, | |
14885 | Pragma_External => -1, | |
14886 | Pragma_Favor_Top_Level => -1, | |
14887 | Pragma_External_Name_Casing => -1, | |
14888 | Pragma_Fast_Math => -1, | |
14889 | Pragma_Finalize_Storage_Only => 0, | |
14890 | Pragma_Float_Representation => 0, | |
14891 | Pragma_Ident => -1, | |
14892 | Pragma_Implementation_Defined => -1, | |
14893 | Pragma_Implemented => -1, | |
14894 | Pragma_Implicit_Packing => 0, | |
14895 | Pragma_Import => +2, | |
14896 | Pragma_Import_Exception => 0, | |
14897 | Pragma_Import_Function => 0, | |
14898 | Pragma_Import_Object => 0, | |
14899 | Pragma_Import_Procedure => 0, | |
14900 | Pragma_Import_Valued_Procedure => 0, | |
14901 | Pragma_Independent => 0, | |
14902 | Pragma_Independent_Components => 0, | |
14903 | Pragma_Initialize_Scalars => -1, | |
14904 | Pragma_Inline => 0, | |
14905 | Pragma_Inline_Always => 0, | |
14906 | Pragma_Inline_Generic => 0, | |
14907 | Pragma_Inspection_Point => -1, | |
14908 | Pragma_Interface => +2, | |
14909 | Pragma_Interface_Name => +2, | |
14910 | Pragma_Interrupt_Handler => -1, | |
14911 | Pragma_Interrupt_Priority => -1, | |
14912 | Pragma_Interrupt_State => -1, | |
14913 | Pragma_Invariant => -1, | |
14914 | Pragma_Java_Constructor => -1, | |
14915 | Pragma_Java_Interface => -1, | |
14916 | Pragma_Keep_Names => 0, | |
14917 | Pragma_License => -1, | |
14918 | Pragma_Link_With => -1, | |
14919 | Pragma_Linker_Alias => -1, | |
14920 | Pragma_Linker_Constructor => -1, | |
14921 | Pragma_Linker_Destructor => -1, | |
14922 | Pragma_Linker_Options => -1, | |
14923 | Pragma_Linker_Section => -1, | |
14924 | Pragma_List => -1, | |
14925 | Pragma_Locking_Policy => -1, | |
14926 | Pragma_Long_Float => -1, | |
14927 | Pragma_Machine_Attribute => -1, | |
14928 | Pragma_Main => -1, | |
14929 | Pragma_Main_Storage => -1, | |
14930 | Pragma_Memory_Size => -1, | |
14931 | Pragma_No_Return => 0, | |
14932 | Pragma_No_Body => 0, | |
14933 | Pragma_No_Run_Time => -1, | |
14934 | Pragma_No_Strict_Aliasing => -1, | |
14935 | Pragma_Normalize_Scalars => -1, | |
14936 | Pragma_Obsolescent => 0, | |
14937 | Pragma_Optimize => -1, | |
14938 | Pragma_Optimize_Alignment => -1, | |
14939 | Pragma_Ordered => 0, | |
14940 | Pragma_Pack => 0, | |
14941 | Pragma_Page => -1, | |
14942 | Pragma_Passive => -1, | |
14943 | Pragma_Preelaborable_Initialization => -1, | |
14944 | Pragma_Polling => -1, | |
14945 | Pragma_Persistent_BSS => 0, | |
14946 | Pragma_Postcondition => -1, | |
14947 | Pragma_Precondition => -1, | |
14948 | Pragma_Predicate => -1, | |
14949 | Pragma_Preelaborate => -1, | |
14950 | Pragma_Preelaborate_05 => -1, | |
14951 | Pragma_Priority => -1, | |
14952 | Pragma_Priority_Specific_Dispatching => -1, | |
14953 | Pragma_Profile => 0, | |
14954 | Pragma_Profile_Warnings => 0, | |
14955 | Pragma_Propagate_Exceptions => -1, | |
14956 | Pragma_Psect_Object => -1, | |
14957 | Pragma_Pure => -1, | |
14958 | Pragma_Pure_05 => -1, | |
14959 | Pragma_Pure_Function => -1, | |
14960 | Pragma_Queuing_Policy => -1, | |
14961 | Pragma_Ravenscar => -1, | |
14962 | Pragma_Relative_Deadline => -1, | |
14963 | Pragma_Remote_Call_Interface => -1, | |
14964 | Pragma_Remote_Types => -1, | |
14965 | Pragma_Restricted_Run_Time => -1, | |
14966 | Pragma_Restriction_Warnings => -1, | |
14967 | Pragma_Restrictions => -1, | |
14968 | Pragma_Reviewable => -1, | |
14969 | Pragma_Short_Circuit_And_Or => -1, | |
14970 | Pragma_Share_Generic => -1, | |
14971 | Pragma_Shared => -1, | |
14972 | Pragma_Shared_Passive => -1, | |
14973 | Pragma_Short_Descriptors => 0, | |
14974 | Pragma_Source_File_Name => -1, | |
14975 | Pragma_Source_File_Name_Project => -1, | |
14976 | Pragma_Source_Reference => -1, | |
14977 | Pragma_Storage_Size => -1, | |
14978 | Pragma_Storage_Unit => -1, | |
14979 | Pragma_Static_Elaboration_Desired => -1, | |
14980 | Pragma_Stream_Convert => -1, | |
14981 | Pragma_Style_Checks => -1, | |
14982 | Pragma_Subtitle => -1, | |
14983 | Pragma_Suppress => 0, | |
14984 | Pragma_Suppress_Exception_Locations => 0, | |
14985 | Pragma_Suppress_All => -1, | |
14986 | Pragma_Suppress_Debug_Info => 0, | |
14987 | Pragma_Suppress_Initialization => 0, | |
14988 | Pragma_System_Name => -1, | |
14989 | Pragma_Task_Dispatching_Policy => -1, | |
14990 | Pragma_Task_Info => -1, | |
14991 | Pragma_Task_Name => -1, | |
14992 | Pragma_Task_Storage => 0, | |
14993 | Pragma_Test_Case => -1, | |
14994 | Pragma_Thread_Local_Storage => 0, | |
14995 | Pragma_Time_Slice => -1, | |
14996 | Pragma_Title => -1, | |
14997 | Pragma_Unchecked_Union => 0, | |
14998 | Pragma_Unimplemented_Unit => -1, | |
14999 | Pragma_Universal_Aliasing => -1, | |
15000 | Pragma_Universal_Data => -1, | |
15001 | Pragma_Unmodified => -1, | |
15002 | Pragma_Unreferenced => -1, | |
15003 | Pragma_Unreferenced_Objects => -1, | |
15004 | Pragma_Unreserve_All_Interrupts => -1, | |
15005 | Pragma_Unsuppress => 0, | |
15006 | Pragma_Use_VADS_Size => -1, | |
15007 | Pragma_Validity_Checks => -1, | |
15008 | Pragma_Volatile => 0, | |
15009 | Pragma_Volatile_Components => 0, | |
15010 | Pragma_Warnings => -1, | |
15011 | Pragma_Weak_External => -1, | |
15012 | Pragma_Wide_Character_Encoding => 0, | |
15013 | Unknown_Pragma => 0); | |
fbf5a39b AC |
15014 | |
15015 | function Is_Non_Significant_Pragma_Reference (N : Node_Id) return Boolean is | |
21d27997 RD |
15016 | Id : Pragma_Id; |
15017 | P : Node_Id; | |
15018 | C : Int; | |
15019 | A : Node_Id; | |
996ae0b0 | 15020 | |
996ae0b0 | 15021 | begin |
fbf5a39b AC |
15022 | P := Parent (N); |
15023 | ||
15024 | if Nkind (P) /= N_Pragma_Argument_Association then | |
15025 | return False; | |
15026 | ||
15027 | else | |
21d27997 RD |
15028 | Id := Get_Pragma_Id (Parent (P)); |
15029 | C := Sig_Flags (Id); | |
fbf5a39b AC |
15030 | |
15031 | case C is | |
15032 | when -1 => | |
15033 | return False; | |
15034 | ||
15035 | when 0 => | |
15036 | return True; | |
15037 | ||
21d27997 RD |
15038 | when 99 => |
15039 | case Id is | |
15040 | ||
15041 | -- For pragma Check, the first argument is not significant, | |
15042 | -- the second and the third (if present) arguments are | |
15043 | -- significant. | |
15044 | ||
15045 | when Pragma_Check => | |
15046 | return | |
15047 | P = First (Pragma_Argument_Associations (Parent (P))); | |
15048 | ||
15049 | when others => | |
15050 | raise Program_Error; | |
15051 | end case; | |
15052 | ||
fbf5a39b AC |
15053 | when others => |
15054 | A := First (Pragma_Argument_Associations (Parent (P))); | |
15055 | for J in 1 .. C - 1 loop | |
15056 | if No (A) then | |
15057 | return False; | |
15058 | end if; | |
15059 | ||
15060 | Next (A); | |
15061 | end loop; | |
15062 | ||
21d27997 | 15063 | return A = P; -- is this wrong way round ??? |
fbf5a39b AC |
15064 | end case; |
15065 | end if; | |
15066 | end Is_Non_Significant_Pragma_Reference; | |
996ae0b0 RK |
15067 | |
15068 | ------------------------------ | |
15069 | -- Is_Pragma_String_Literal -- | |
15070 | ------------------------------ | |
15071 | ||
b3b9865d AC |
15072 | -- This function returns true if the corresponding pragma argument is a |
15073 | -- static string expression. These are the only cases in which string | |
15074 | -- literals can appear as pragma arguments. We also allow a string literal | |
15075 | -- as the first argument to pragma Assert (although it will of course | |
15076 | -- always generate a type error). | |
996ae0b0 RK |
15077 | |
15078 | function Is_Pragma_String_Literal (Par : Node_Id) return Boolean is | |
15079 | Pragn : constant Node_Id := Parent (Par); | |
15080 | Assoc : constant List_Id := Pragma_Argument_Associations (Pragn); | |
1b24ada5 | 15081 | Pname : constant Name_Id := Pragma_Name (Pragn); |
996ae0b0 RK |
15082 | Argn : Natural; |
15083 | N : Node_Id; | |
15084 | ||
15085 | begin | |
15086 | Argn := 1; | |
15087 | N := First (Assoc); | |
15088 | loop | |
15089 | exit when N = Par; | |
15090 | Argn := Argn + 1; | |
15091 | Next (N); | |
15092 | end loop; | |
15093 | ||
15094 | if Pname = Name_Assert then | |
15095 | return True; | |
15096 | ||
15097 | elsif Pname = Name_Export then | |
15098 | return Argn > 2; | |
15099 | ||
15100 | elsif Pname = Name_Ident then | |
15101 | return Argn = 1; | |
15102 | ||
15103 | elsif Pname = Name_Import then | |
15104 | return Argn > 2; | |
15105 | ||
15106 | elsif Pname = Name_Interface_Name then | |
15107 | return Argn > 1; | |
15108 | ||
15109 | elsif Pname = Name_Linker_Alias then | |
15110 | return Argn = 2; | |
15111 | ||
15112 | elsif Pname = Name_Linker_Section then | |
15113 | return Argn = 2; | |
15114 | ||
15115 | elsif Pname = Name_Machine_Attribute then | |
15116 | return Argn = 2; | |
15117 | ||
15118 | elsif Pname = Name_Source_File_Name then | |
15119 | return True; | |
15120 | ||
15121 | elsif Pname = Name_Source_Reference then | |
15122 | return Argn = 2; | |
15123 | ||
15124 | elsif Pname = Name_Title then | |
15125 | return True; | |
15126 | ||
15127 | elsif Pname = Name_Subtitle then | |
15128 | return True; | |
15129 | ||
15130 | else | |
15131 | return False; | |
15132 | end if; | |
996ae0b0 RK |
15133 | end Is_Pragma_String_Literal; |
15134 | ||
dac3bede YM |
15135 | ------------------------ |
15136 | -- Preanalyze_TC_Args -- | |
15137 | ------------------------ | |
15138 | ||
8c18a165 | 15139 | procedure Preanalyze_TC_Args (N, Arg_Req, Arg_Ens : Node_Id) is |
dac3bede YM |
15140 | begin |
15141 | -- Preanalyze the boolean expressions, we treat these as spec | |
15142 | -- expressions (i.e. similar to a default expression). | |
15143 | ||
15144 | if Present (Arg_Req) then | |
15145 | Preanalyze_Spec_Expression | |
15146 | (Get_Pragma_Arg (Arg_Req), Standard_Boolean); | |
8c18a165 AC |
15147 | |
15148 | -- In ASIS mode, for a pragma generated from a source aspect, also | |
15149 | -- analyze the original aspect expression. | |
15150 | ||
15151 | if ASIS_Mode | |
15152 | and then Present (Corresponding_Aspect (N)) | |
15153 | then | |
15154 | Preanalyze_Spec_Expression | |
15155 | (Original_Node (Get_Pragma_Arg (Arg_Req)), Standard_Boolean); | |
15156 | end if; | |
dac3bede YM |
15157 | end if; |
15158 | ||
15159 | if Present (Arg_Ens) then | |
15160 | Preanalyze_Spec_Expression | |
15161 | (Get_Pragma_Arg (Arg_Ens), Standard_Boolean); | |
8c18a165 AC |
15162 | |
15163 | -- In ASIS mode, for a pragma generated from a source aspect, also | |
15164 | -- analyze the original aspect expression. | |
15165 | ||
15166 | if ASIS_Mode | |
15167 | and then Present (Corresponding_Aspect (N)) | |
15168 | then | |
15169 | Preanalyze_Spec_Expression | |
15170 | (Original_Node (Get_Pragma_Arg (Arg_Ens)), Standard_Boolean); | |
15171 | end if; | |
dac3bede YM |
15172 | end if; |
15173 | end Preanalyze_TC_Args; | |
15174 | ||
996ae0b0 RK |
15175 | -------------------------------------- |
15176 | -- Process_Compilation_Unit_Pragmas -- | |
15177 | -------------------------------------- | |
15178 | ||
15179 | procedure Process_Compilation_Unit_Pragmas (N : Node_Id) is | |
15180 | begin | |
b3b9865d | 15181 | -- A special check for pragma Suppress_All, a very strange DEC pragma, |
c775c209 AC |
15182 | -- strange because it comes at the end of the unit. Rational has the |
15183 | -- same name for a pragma, but treats it as a program unit pragma, In | |
15184 | -- GNAT we just decide to allow it anywhere at all. If it appeared then | |
15185 | -- the flag Has_Pragma_Suppress_All was set on the compilation unit | |
15186 | -- node, and we insert a pragma Suppress (All_Checks) at the start of | |
15187 | -- the context clause to ensure the correct processing. | |
15188 | ||
15189 | if Has_Pragma_Suppress_All (N) then | |
15190 | Prepend_To (Context_Items (N), | |
15191 | Make_Pragma (Sloc (N), | |
15192 | Chars => Name_Suppress, | |
15193 | Pragma_Argument_Associations => New_List ( | |
15194 | Make_Pragma_Argument_Association (Sloc (N), | |
7675ad4f | 15195 | Expression => Make_Identifier (Sloc (N), Name_All_Checks))))); |
c775c209 | 15196 | end if; |
996ae0b0 | 15197 | |
c775c209 | 15198 | -- Nothing else to do at the current time! |
996ae0b0 | 15199 | |
996ae0b0 RK |
15200 | end Process_Compilation_Unit_Pragmas; |
15201 | ||
2fa9443e ES |
15202 | -------- |
15203 | -- rv -- | |
15204 | -------- | |
15205 | ||
15206 | procedure rv is | |
15207 | begin | |
15208 | null; | |
15209 | end rv; | |
15210 | ||
996ae0b0 RK |
15211 | -------------------------------- |
15212 | -- Set_Encoded_Interface_Name -- | |
15213 | -------------------------------- | |
15214 | ||
15215 | procedure Set_Encoded_Interface_Name (E : Entity_Id; S : Node_Id) is | |
15216 | Str : constant String_Id := Strval (S); | |
15217 | Len : constant Int := String_Length (Str); | |
15218 | CC : Char_Code; | |
15219 | C : Character; | |
15220 | J : Int; | |
15221 | ||
15222 | Hex : constant array (0 .. 15) of Character := "0123456789abcdef"; | |
15223 | ||
15224 | procedure Encode; | |
b3b9865d AC |
15225 | -- Stores encoded value of character code CC. The encoding we use an |
15226 | -- underscore followed by four lower case hex digits. | |
996ae0b0 | 15227 | |
2c9beb8a RD |
15228 | ------------ |
15229 | -- Encode -- | |
15230 | ------------ | |
15231 | ||
996ae0b0 RK |
15232 | procedure Encode is |
15233 | begin | |
15234 | Store_String_Char (Get_Char_Code ('_')); | |
15235 | Store_String_Char | |
15236 | (Get_Char_Code (Hex (Integer (CC / 2 ** 12)))); | |
15237 | Store_String_Char | |
15238 | (Get_Char_Code (Hex (Integer (CC / 2 ** 8 and 16#0F#)))); | |
15239 | Store_String_Char | |
15240 | (Get_Char_Code (Hex (Integer (CC / 2 ** 4 and 16#0F#)))); | |
15241 | Store_String_Char | |
15242 | (Get_Char_Code (Hex (Integer (CC and 16#0F#)))); | |
15243 | end Encode; | |
15244 | ||
15245 | -- Start of processing for Set_Encoded_Interface_Name | |
15246 | ||
15247 | begin | |
b3b9865d AC |
15248 | -- If first character is asterisk, this is a link name, and we leave it |
15249 | -- completely unmodified. We also ignore null strings (the latter case | |
15250 | -- happens only in error cases) and no encoding should occur for Java or | |
15251 | -- AAMP interface names. | |
996ae0b0 RK |
15252 | |
15253 | if Len = 0 | |
15254 | or else Get_String_Char (Str, 1) = Get_Char_Code ('*') | |
2fa9443e ES |
15255 | or else VM_Target /= No_VM |
15256 | or else AAMP_On_Target | |
996ae0b0 RK |
15257 | then |
15258 | Set_Interface_Name (E, S); | |
15259 | ||
15260 | else | |
15261 | J := 1; | |
15262 | loop | |
15263 | CC := Get_String_Char (Str, J); | |
15264 | ||
15265 | exit when not In_Character_Range (CC); | |
15266 | ||
15267 | C := Get_Character (CC); | |
15268 | ||
15269 | exit when C /= '_' and then C /= '$' | |
15270 | and then C not in '0' .. '9' | |
15271 | and then C not in 'a' .. 'z' | |
15272 | and then C not in 'A' .. 'Z'; | |
15273 | ||
15274 | if J = Len then | |
15275 | Set_Interface_Name (E, S); | |
15276 | return; | |
15277 | ||
15278 | else | |
15279 | J := J + 1; | |
15280 | end if; | |
15281 | end loop; | |
15282 | ||
15283 | -- Here we need to encode. The encoding we use as follows: | |
15284 | -- three underscores + four hex digits (lower case) | |
15285 | ||
15286 | Start_String; | |
15287 | ||
15288 | for J in 1 .. String_Length (Str) loop | |
15289 | CC := Get_String_Char (Str, J); | |
15290 | ||
15291 | if not In_Character_Range (CC) then | |
15292 | Encode; | |
15293 | else | |
15294 | C := Get_Character (CC); | |
15295 | ||
15296 | if C = '_' or else C = '$' | |
15297 | or else C in '0' .. '9' | |
15298 | or else C in 'a' .. 'z' | |
15299 | or else C in 'A' .. 'Z' | |
15300 | then | |
15301 | Store_String_Char (CC); | |
15302 | else | |
15303 | Encode; | |
15304 | end if; | |
15305 | end if; | |
15306 | end loop; | |
15307 | ||
15308 | Set_Interface_Name (E, | |
15309 | Make_String_Literal (Sloc (S), | |
15310 | Strval => End_String)); | |
15311 | end if; | |
15312 | end Set_Encoded_Interface_Name; | |
15313 | ||
15314 | ------------------- | |
15315 | -- Set_Unit_Name -- | |
15316 | ------------------- | |
15317 | ||
15318 | procedure Set_Unit_Name (N : Node_Id; With_Item : Node_Id) is | |
15319 | Pref : Node_Id; | |
15320 | Scop : Entity_Id; | |
15321 | ||
15322 | begin | |
15323 | if Nkind (N) = N_Identifier | |
15324 | and then Nkind (With_Item) = N_Identifier | |
15325 | then | |
15326 | Set_Entity (N, Entity (With_Item)); | |
15327 | ||
15328 | elsif Nkind (N) = N_Selected_Component then | |
15329 | Change_Selected_Component_To_Expanded_Name (N); | |
15330 | Set_Entity (N, Entity (With_Item)); | |
15331 | Set_Entity (Selector_Name (N), Entity (N)); | |
15332 | ||
15333 | Pref := Prefix (N); | |
15334 | Scop := Scope (Entity (N)); | |
996ae0b0 RK |
15335 | while Nkind (Pref) = N_Selected_Component loop |
15336 | Change_Selected_Component_To_Expanded_Name (Pref); | |
15337 | Set_Entity (Selector_Name (Pref), Scop); | |
15338 | Set_Entity (Pref, Scop); | |
15339 | Pref := Prefix (Pref); | |
15340 | Scop := Scope (Scop); | |
15341 | end loop; | |
15342 | ||
15343 | Set_Entity (Pref, Scop); | |
15344 | end if; | |
15345 | end Set_Unit_Name; | |
21d27997 | 15346 | |
996ae0b0 | 15347 | end Sem_Prag; |