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2014-10-10 Robert Dewar <dewar@adacore.com>
[official-gcc.git] / gcc / ada / prj-dect.adb
blob672c45419a9551e19c18c2a006029397ab149144
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT COMPILER COMPONENTS --
4 -- --
5 -- P R J . D E C T --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 2001-2014, Free Software Foundation, Inc. --
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- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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 --
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. --
20 -- --
21 -- GNAT was originally developed by the GNAT team at New York University. --
22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
23 -- --
24 ------------------------------------------------------------------------------
25
26 with Err_Vars; use Err_Vars;
27 with Opt; use Opt;
28 with Prj.Attr; use Prj.Attr;
29 with Prj.Attr.PM; use Prj.Attr.PM;
30 with Prj.Err; use Prj.Err;
31 with Prj.Strt; use Prj.Strt;
32 with Prj.Tree; use Prj.Tree;
33 with Snames;
34 with Uintp; use Uintp;
35
36 with GNAT; use GNAT;
37 with GNAT.Case_Util; use GNAT.Case_Util;
38 with GNAT.Spelling_Checker; use GNAT.Spelling_Checker;
39 with GNAT.Strings;
40
41 package body Prj.Dect is
42
43 type Zone is (In_Project, In_Package, In_Case_Construction);
44 -- Used to indicate if we are parsing a package (In_Package), a case
45 -- construction (In_Case_Construction) or none of those two (In_Project).
46
47 procedure Rename_Obsolescent_Attributes
48 (In_Tree : Project_Node_Tree_Ref;
49 Attribute : Project_Node_Id;
50 Current_Package : Project_Node_Id);
51 -- Rename obsolescent attributes in the tree. When the attribute has been
52 -- renamed since its initial introduction in the design of projects, we
53 -- replace the old name in the tree with the new name, so that the code
54 -- does not have to check both names forever.
55
56 procedure Check_Attribute_Allowed
57 (In_Tree : Project_Node_Tree_Ref;
58 Project : Project_Node_Id;
59 Attribute : Project_Node_Id;
60 Flags : Processing_Flags);
61 -- Check whether the attribute is valid in this project. In particular,
62 -- depending on the type of project (qualifier), some attributes might
63 -- be disabled.
64
65 procedure Check_Package_Allowed
66 (In_Tree : Project_Node_Tree_Ref;
67 Project : Project_Node_Id;
68 Current_Package : Project_Node_Id;
69 Flags : Processing_Flags);
70 -- Check whether the package is valid in this project
71
72 procedure Parse_Attribute_Declaration
73 (In_Tree : Project_Node_Tree_Ref;
74 Attribute : out Project_Node_Id;
75 First_Attribute : Attribute_Node_Id;
76 Current_Project : Project_Node_Id;
77 Current_Package : Project_Node_Id;
78 Packages_To_Check : String_List_Access;
79 Flags : Processing_Flags);
80 -- Parse an attribute declaration
81
82 procedure Parse_Case_Construction
83 (In_Tree : Project_Node_Tree_Ref;
84 Case_Construction : out Project_Node_Id;
85 First_Attribute : Attribute_Node_Id;
86 Current_Project : Project_Node_Id;
87 Current_Package : Project_Node_Id;
88 Packages_To_Check : String_List_Access;
89 Is_Config_File : Boolean;
90 Flags : Processing_Flags);
91 -- Parse a case construction
92
93 procedure Parse_Declarative_Items
94 (In_Tree : Project_Node_Tree_Ref;
95 Declarations : out Project_Node_Id;
96 In_Zone : Zone;
97 First_Attribute : Attribute_Node_Id;
98 Current_Project : Project_Node_Id;
99 Current_Package : Project_Node_Id;
100 Packages_To_Check : String_List_Access;
101 Is_Config_File : Boolean;
102 Flags : Processing_Flags);
103 -- Parse declarative items. Depending on In_Zone, some declarative items
104 -- may be forbidden. Is_Config_File should be set to True if the project
105 -- represents a config file (.cgpr) since some specific checks apply.
106
107 procedure Parse_Package_Declaration
108 (In_Tree : Project_Node_Tree_Ref;
109 Package_Declaration : out Project_Node_Id;
110 Current_Project : Project_Node_Id;
111 Packages_To_Check : String_List_Access;
112 Is_Config_File : Boolean;
113 Flags : Processing_Flags);
114 -- Parse a package declaration.
115 -- Is_Config_File should be set to True if the project represents a config
116 -- file (.cgpr) since some specific checks apply.
117
118 procedure Parse_String_Type_Declaration
119 (In_Tree : Project_Node_Tree_Ref;
120 String_Type : out Project_Node_Id;
121 Current_Project : Project_Node_Id;
122 Flags : Processing_Flags);
123 -- type <name> is ( <literal_string> { , <literal_string> } ) ;
124
125 procedure Parse_Variable_Declaration
126 (In_Tree : Project_Node_Tree_Ref;
127 Variable : out Project_Node_Id;
128 Current_Project : Project_Node_Id;
129 Current_Package : Project_Node_Id;
130 Flags : Processing_Flags);
131 -- Parse a variable assignment
132 -- <variable_Name> := <expression>; OR
133 -- <variable_Name> : <string_type_Name> := <string_expression>;
134
135 -----------
136 -- Parse --
137 -----------
138
139 procedure Parse
140 (In_Tree : Project_Node_Tree_Ref;
141 Declarations : out Project_Node_Id;
142 Current_Project : Project_Node_Id;
143 Extends : Project_Node_Id;
144 Packages_To_Check : String_List_Access;
145 Is_Config_File : Boolean;
146 Flags : Processing_Flags)
147 is
148 First_Declarative_Item : Project_Node_Id := Empty_Node;
149
150 begin
151 Declarations :=
152 Default_Project_Node
153 (Of_Kind => N_Project_Declaration, In_Tree => In_Tree);
154 Set_Location_Of (Declarations, In_Tree, To => Token_Ptr);
155 Set_Extended_Project_Of (Declarations, In_Tree, To => Extends);
156 Set_Project_Declaration_Of (Current_Project, In_Tree, Declarations);
157 Parse_Declarative_Items
158 (Declarations => First_Declarative_Item,
159 In_Tree => In_Tree,
160 In_Zone => In_Project,
161 First_Attribute => Prj.Attr.Attribute_First,
162 Current_Project => Current_Project,
163 Current_Package => Empty_Node,
164 Packages_To_Check => Packages_To_Check,
165 Is_Config_File => Is_Config_File,
166 Flags => Flags);
167 Set_First_Declarative_Item_Of
168 (Declarations, In_Tree, To => First_Declarative_Item);
169 end Parse;
170
171 -----------------------------------
172 -- Rename_Obsolescent_Attributes --
173 -----------------------------------
174
175 procedure Rename_Obsolescent_Attributes
176 (In_Tree : Project_Node_Tree_Ref;
177 Attribute : Project_Node_Id;
178 Current_Package : Project_Node_Id)
179 is
180 begin
181 if Present (Current_Package)
182 and then Expression_Kind_Of (Current_Package, In_Tree) /= Ignored
183 then
184 case Name_Of (Attribute, In_Tree) is
185 when Snames.Name_Specification =>
186 Set_Name_Of (Attribute, In_Tree, To => Snames.Name_Spec);
187
188 when Snames.Name_Specification_Suffix =>
189 Set_Name_Of (Attribute, In_Tree, To => Snames.Name_Spec_Suffix);
190
191 when Snames.Name_Implementation =>
192 Set_Name_Of (Attribute, In_Tree, To => Snames.Name_Body);
193
194 when Snames.Name_Implementation_Suffix =>
195 Set_Name_Of (Attribute, In_Tree, To => Snames.Name_Body_Suffix);
196
197 when others =>
198 null;
199 end case;
200 end if;
201 end Rename_Obsolescent_Attributes;
202
203 ---------------------------
204 -- Check_Package_Allowed --
205 ---------------------------
206
207 procedure Check_Package_Allowed
208 (In_Tree : Project_Node_Tree_Ref;
209 Project : Project_Node_Id;
210 Current_Package : Project_Node_Id;
211 Flags : Processing_Flags)
212 is
213 Qualif : constant Project_Qualifier :=
214 Project_Qualifier_Of (Project, In_Tree);
215 Name : constant Name_Id := Name_Of (Current_Package, In_Tree);
216 begin
217 if Name /= Snames.Name_Ide
218 and then
219 ((Qualif = Aggregate and then Name /= Snames.Name_Builder)
220 or else
221 (Qualif = Aggregate_Library and then Name /= Snames.Name_Builder
222 and then Name /= Snames.Name_Install))
223 then
224 Error_Msg_Name_1 := Name;
225 Error_Msg
226 (Flags,
227 "package %% is forbidden in aggregate projects",
228 Location_Of (Current_Package, In_Tree));
229 end if;
230 end Check_Package_Allowed;
231
232 -----------------------------
233 -- Check_Attribute_Allowed --
234 -----------------------------
235
236 procedure Check_Attribute_Allowed
237 (In_Tree : Project_Node_Tree_Ref;
238 Project : Project_Node_Id;
239 Attribute : Project_Node_Id;
240 Flags : Processing_Flags)
241 is
242 Qualif : constant Project_Qualifier :=
243 Project_Qualifier_Of (Project, In_Tree);
244 Name : constant Name_Id := Name_Of (Attribute, In_Tree);
245
246 begin
247 case Qualif is
248 when Aggregate | Aggregate_Library =>
249 if Name = Snames.Name_Languages
250 or else Name = Snames.Name_Source_Files
251 or else Name = Snames.Name_Source_List_File
252 or else Name = Snames.Name_Locally_Removed_Files
253 or else Name = Snames.Name_Excluded_Source_Files
254 or else Name = Snames.Name_Excluded_Source_List_File
255 or else Name = Snames.Name_Interfaces
256 or else Name = Snames.Name_Object_Dir
257 or else Name = Snames.Name_Exec_Dir
258 or else Name = Snames.Name_Source_Dirs
259 or else Name = Snames.Name_Inherit_Source_Path
260 or else
261 (Qualif = Aggregate and then Name = Snames.Name_Library_Dir)
262 or else
263 (Qualif = Aggregate and then Name = Snames.Name_Library_Name)
264 or else Name = Snames.Name_Main
265 or else Name = Snames.Name_Roots
266 or else Name = Snames.Name_Externally_Built
267 or else Name = Snames.Name_Executable
268 or else Name = Snames.Name_Executable_Suffix
269 or else Name = Snames.Name_Default_Switches
270 then
271 Error_Msg_Name_1 := Name;
272 Error_Msg
273 (Flags,
274 "%% is not valid in aggregate projects",
275 Location_Of (Attribute, In_Tree));
276 end if;
277
278 when others =>
279 if Name = Snames.Name_Project_Files
280 or else Name = Snames.Name_Project_Path
281 or else Name = Snames.Name_External
282 then
283 Error_Msg_Name_1 := Name;
284 Error_Msg
285 (Flags,
286 "%% is only valid in aggregate projects",
287 Location_Of (Attribute, In_Tree));
288 end if;
289 end case;
290 end Check_Attribute_Allowed;
291
292 ---------------------------------
293 -- Parse_Attribute_Declaration --
294 ---------------------------------
295
296 procedure Parse_Attribute_Declaration
297 (In_Tree : Project_Node_Tree_Ref;
298 Attribute : out Project_Node_Id;
299 First_Attribute : Attribute_Node_Id;
300 Current_Project : Project_Node_Id;
301 Current_Package : Project_Node_Id;
302 Packages_To_Check : String_List_Access;
303 Flags : Processing_Flags)
304 is
305 Current_Attribute : Attribute_Node_Id := First_Attribute;
306 Full_Associative_Array : Boolean := False;
307 Attribute_Name : Name_Id := No_Name;
308 Optional_Index : Boolean := False;
309 Pkg_Id : Package_Node_Id := Empty_Package;
310
311 procedure Process_Attribute_Name;
312 -- Read the name of the attribute, and check its type
313
314 procedure Process_Associative_Array_Index;
315 -- Read the index of the associative array and check its validity
316
317 ----------------------------
318 -- Process_Attribute_Name --
319 ----------------------------
320
321 procedure Process_Attribute_Name is
322 Ignore : Boolean;
323
324 begin
325 Attribute_Name := Token_Name;
326 Set_Name_Of (Attribute, In_Tree, To => Attribute_Name);
327 Set_Location_Of (Attribute, In_Tree, To => Token_Ptr);
328
329 -- Find the attribute
330
331 Current_Attribute :=
332 Attribute_Node_Id_Of (Attribute_Name, First_Attribute);
333
334 -- If the attribute cannot be found, create the attribute if inside
335 -- an unknown package.
336
337 if Current_Attribute = Empty_Attribute then
338 if Present (Current_Package)
339 and then Expression_Kind_Of (Current_Package, In_Tree) = Ignored
340 then
341 Pkg_Id := Package_Id_Of (Current_Package, In_Tree);
342 Add_Attribute (Pkg_Id, Token_Name, Current_Attribute);
343
344 else
345 -- If not a valid attribute name, issue an error if inside
346 -- a package that need to be checked.
347
348 Ignore := Present (Current_Package) and then
349 Packages_To_Check /= All_Packages;
350
351 if Ignore then
352
353 -- Check that we are not in a package to check
354
355 Get_Name_String (Name_Of (Current_Package, In_Tree));
356
357 for Index in Packages_To_Check'Range loop
358 if Name_Buffer (1 .. Name_Len) =
359 Packages_To_Check (Index).all
360 then
361 Ignore := False;
362 exit;
363 end if;
364 end loop;
365 end if;
366
367 if not Ignore then
368 Error_Msg_Name_1 := Token_Name;
369 Error_Msg (Flags, "undefined attribute %%", Token_Ptr);
370 end if;
371 end if;
372
373 -- Set, if appropriate the index case insensitivity flag
374
375 else
376 if Is_Read_Only (Current_Attribute) then
377 Error_Msg_Name_1 := Token_Name;
378 Error_Msg
379 (Flags, "read-only attribute %% cannot be given a value",
380 Token_Ptr);
381 end if;
382
383 if Attribute_Kind_Of (Current_Attribute) in
384 All_Case_Insensitive_Associative_Array
385 then
386 Set_Case_Insensitive (Attribute, In_Tree, To => True);
387 end if;
388 end if;
389
390 Scan (In_Tree); -- past the attribute name
391
392 -- Set the expression kind of the attribute
393
394 if Current_Attribute /= Empty_Attribute then
395 Set_Expression_Kind_Of
396 (Attribute, In_Tree, To => Variable_Kind_Of (Current_Attribute));
397 Optional_Index := Optional_Index_Of (Current_Attribute);
398 end if;
399 end Process_Attribute_Name;
400
401 -------------------------------------
402 -- Process_Associative_Array_Index --
403 -------------------------------------
404
405 procedure Process_Associative_Array_Index is
406 begin
407 -- If the attribute is not an associative array attribute, report
408 -- an error. If this information is still unknown, set the kind
409 -- to Associative_Array.
410
411 if Current_Attribute /= Empty_Attribute
412 and then Attribute_Kind_Of (Current_Attribute) = Single
413 then
414 Error_Msg (Flags,
415 "the attribute """ &
416 Get_Name_String (Attribute_Name_Of (Current_Attribute))
417 & """ cannot be an associative array",
418 Location_Of (Attribute, In_Tree));
419
420 elsif Attribute_Kind_Of (Current_Attribute) = Unknown then
421 Set_Attribute_Kind_Of (Current_Attribute, To => Associative_Array);
422 end if;
423
424 Scan (In_Tree); -- past the left parenthesis
425
426 if Others_Allowed_For (Current_Attribute)
427 and then Token = Tok_Others
428 then
429 Set_Associative_Array_Index_Of
430 (Attribute, In_Tree, All_Other_Names);
431 Scan (In_Tree); -- past others
432
433 else
434 if Others_Allowed_For (Current_Attribute) then
435 Expect (Tok_String_Literal, "literal string or others");
436 else
437 Expect (Tok_String_Literal, "literal string");
438 end if;
439
440 if Token = Tok_String_Literal then
441 Get_Name_String (Token_Name);
442
443 if Case_Insensitive (Attribute, In_Tree) then
444 To_Lower (Name_Buffer (1 .. Name_Len));
445 end if;
446
447 Set_Associative_Array_Index_Of (Attribute, In_Tree, Name_Find);
448 Scan (In_Tree); -- past the literal string index
449
450 if Token = Tok_At then
451 case Attribute_Kind_Of (Current_Attribute) is
452 when Optional_Index_Associative_Array |
453 Optional_Index_Case_Insensitive_Associative_Array =>
454 Scan (In_Tree);
455 Expect (Tok_Integer_Literal, "integer literal");
456
457 if Token = Tok_Integer_Literal then
458
459 -- Set the source index value from given literal
460
461 declare
462 Index : constant Int :=
463 UI_To_Int (Int_Literal_Value);
464 begin
465 if Index = 0 then
466 Error_Msg
467 (Flags, "index cannot be zero", Token_Ptr);
468 else
469 Set_Source_Index_Of
470 (Attribute, In_Tree, To => Index);
471 end if;
472 end;
473
474 Scan (In_Tree);
475 end if;
476
477 when others =>
478 Error_Msg (Flags, "index not allowed here", Token_Ptr);
479 Scan (In_Tree);
480
481 if Token = Tok_Integer_Literal then
482 Scan (In_Tree);
483 end if;
484 end case;
485 end if;
486 end if;
487 end if;
488
489 Expect (Tok_Right_Paren, "`)`");
490
491 if Token = Tok_Right_Paren then
492 Scan (In_Tree); -- past the right parenthesis
493 end if;
494 end Process_Associative_Array_Index;
495
496 begin
497 Attribute :=
498 Default_Project_Node
499 (Of_Kind => N_Attribute_Declaration, In_Tree => In_Tree);
500 Set_Location_Of (Attribute, In_Tree, To => Token_Ptr);
501 Set_Previous_Line_Node (Attribute);
502
503 -- Scan past "for"
504
505 Scan (In_Tree);
506
507 -- Body or External may be an attribute name
508
509 if Token = Tok_Body then
510 Token := Tok_Identifier;
511 Token_Name := Snames.Name_Body;
512 end if;
513
514 if Token = Tok_External then
515 Token := Tok_Identifier;
516 Token_Name := Snames.Name_External;
517 end if;
518
519 Expect (Tok_Identifier, "identifier");
520 Process_Attribute_Name;
521 Rename_Obsolescent_Attributes (In_Tree, Attribute, Current_Package);
522 Check_Attribute_Allowed (In_Tree, Current_Project, Attribute, Flags);
523
524 -- Associative array attributes
525
526 if Token = Tok_Left_Paren then
527 Process_Associative_Array_Index;
528
529 else
530 -- If it is an associative array attribute and there are no left
531 -- parenthesis, then this is a full associative array declaration.
532 -- Flag it as such for later processing of its value.
533
534 if Current_Attribute /= Empty_Attribute
535 and then
536 Attribute_Kind_Of (Current_Attribute) /= Single
537 then
538 if Attribute_Kind_Of (Current_Attribute) = Unknown then
539 Set_Attribute_Kind_Of (Current_Attribute, To => Single);
540
541 else
542 Full_Associative_Array := True;
543 end if;
544 end if;
545 end if;
546
547 Expect (Tok_Use, "USE");
548
549 if Token = Tok_Use then
550 Scan (In_Tree);
551
552 if Full_Associative_Array then
553
554 -- Expect <project>'<same_attribute_name>, or
555 -- <project>.<same_package_name>'<same_attribute_name>
556
557 declare
558 The_Project : Project_Node_Id := Empty_Node;
559 -- The node of the project where the associative array is
560 -- declared.
561
562 The_Package : Project_Node_Id := Empty_Node;
563 -- The node of the package where the associative array is
564 -- declared, if any.
565
566 Project_Name : Name_Id := No_Name;
567 -- The name of the project where the associative array is
568 -- declared.
569
570 Location : Source_Ptr := No_Location;
571 -- The location of the project name
572
573 begin
574 Expect (Tok_Identifier, "identifier");
575
576 if Token = Tok_Identifier then
577 Location := Token_Ptr;
578
579 -- Find the project node in the imported project or
580 -- in the project being extended.
581
582 The_Project := Imported_Or_Extended_Project_Of
583 (Current_Project, In_Tree, Token_Name);
584
585 if No (The_Project) then
586 Error_Msg (Flags, "unknown project", Location);
587 Scan (In_Tree); -- past the project name
588
589 else
590 Project_Name := Token_Name;
591 Scan (In_Tree); -- past the project name
592
593 -- If this is inside a package, a dot followed by the
594 -- name of the package must followed the project name.
595
596 if Present (Current_Package) then
597 Expect (Tok_Dot, "`.`");
598
599 if Token /= Tok_Dot then
600 The_Project := Empty_Node;
601
602 else
603 Scan (In_Tree); -- past the dot
604 Expect (Tok_Identifier, "identifier");
605
606 if Token /= Tok_Identifier then
607 The_Project := Empty_Node;
608
609 -- If it is not the same package name, issue error
610
611 elsif
612 Token_Name /= Name_Of (Current_Package, In_Tree)
613 then
614 The_Project := Empty_Node;
615 Error_Msg
616 (Flags, "not the same package as " &
617 Get_Name_String
618 (Name_Of (Current_Package, In_Tree)),
619 Token_Ptr);
620
621 else
622 The_Package :=
623 First_Package_Of (The_Project, In_Tree);
624
625 -- Look for the package node
626
627 while Present (The_Package)
628 and then
629 Name_Of (The_Package, In_Tree) /= Token_Name
630 loop
631 The_Package :=
632 Next_Package_In_Project
633 (The_Package, In_Tree);
634 end loop;
635
636 -- If the package cannot be found in the
637 -- project, issue an error.
638
639 if No (The_Package) then
640 The_Project := Empty_Node;
641 Error_Msg_Name_2 := Project_Name;
642 Error_Msg_Name_1 := Token_Name;
643 Error_Msg
644 (Flags,
645 "package % not declared in project %",
646 Token_Ptr);
647 end if;
648
649 Scan (In_Tree); -- past the package name
650 end if;
651 end if;
652 end if;
653 end if;
654 end if;
655
656 if Present (The_Project) then
657
658 -- Looking for '<same attribute name>
659
660 Expect (Tok_Apostrophe, "`''`");
661
662 if Token /= Tok_Apostrophe then
663 The_Project := Empty_Node;
664
665 else
666 Scan (In_Tree); -- past the apostrophe
667 Expect (Tok_Identifier, "identifier");
668
669 if Token /= Tok_Identifier then
670 The_Project := Empty_Node;
671
672 else
673 -- If it is not the same attribute name, issue error
674
675 if Token_Name /= Attribute_Name then
676 The_Project := Empty_Node;
677 Error_Msg_Name_1 := Attribute_Name;
678 Error_Msg
679 (Flags, "invalid name, should be %", Token_Ptr);
680 end if;
681
682 Scan (In_Tree); -- past the attribute name
683 end if;
684 end if;
685 end if;
686
687 if No (The_Project) then
688
689 -- If there were any problem, set the attribute id to null,
690 -- so that the node will not be recorded.
691
692 Current_Attribute := Empty_Attribute;
693
694 else
695 -- Set the appropriate field in the node.
696 -- Note that the index and the expression are nil. This
697 -- characterizes full associative array attribute
698 -- declarations.
699
700 Set_Associative_Project_Of (Attribute, In_Tree, The_Project);
701 Set_Associative_Package_Of (Attribute, In_Tree, The_Package);
702 end if;
703 end;
704
705 -- Other attribute declarations (not full associative array)
706
707 else
708 declare
709 Expression_Location : constant Source_Ptr := Token_Ptr;
710 -- The location of the first token of the expression
711
712 Expression : Project_Node_Id := Empty_Node;
713 -- The expression, value for the attribute declaration
714
715 begin
716 -- Get the expression value and set it in the attribute node
717
718 Parse_Expression
719 (In_Tree => In_Tree,
720 Expression => Expression,
721 Flags => Flags,
722 Current_Project => Current_Project,
723 Current_Package => Current_Package,
724 Optional_Index => Optional_Index);
725 Set_Expression_Of (Attribute, In_Tree, To => Expression);
726
727 -- If the expression is legal, but not of the right kind
728 -- for the attribute, issue an error.
729
730 if Current_Attribute /= Empty_Attribute
731 and then Present (Expression)
732 and then Variable_Kind_Of (Current_Attribute) /=
733 Expression_Kind_Of (Expression, In_Tree)
734 then
735 if Variable_Kind_Of (Current_Attribute) = Undefined then
736 Set_Variable_Kind_Of
737 (Current_Attribute,
738 To => Expression_Kind_Of (Expression, In_Tree));
739
740 else
741 Error_Msg
742 (Flags, "wrong expression kind for attribute """ &
743 Get_Name_String
744 (Attribute_Name_Of (Current_Attribute)) &
745 """",
746 Expression_Location);
747 end if;
748 end if;
749 end;
750 end if;
751 end if;
752
753 -- If the attribute was not recognized, return an empty node.
754 -- It may be that it is not in a package to check, and the node will
755 -- not be added to the tree.
756
757 if Current_Attribute = Empty_Attribute then
758 Attribute := Empty_Node;
759 end if;
760
761 Set_End_Of_Line (Attribute);
762 Set_Previous_Line_Node (Attribute);
763 end Parse_Attribute_Declaration;
764
765 -----------------------------
766 -- Parse_Case_Construction --
767 -----------------------------
768
769 procedure Parse_Case_Construction
770 (In_Tree : Project_Node_Tree_Ref;
771 Case_Construction : out Project_Node_Id;
772 First_Attribute : Attribute_Node_Id;
773 Current_Project : Project_Node_Id;
774 Current_Package : Project_Node_Id;
775 Packages_To_Check : String_List_Access;
776 Is_Config_File : Boolean;
777 Flags : Processing_Flags)
778 is
779 Current_Item : Project_Node_Id := Empty_Node;
780 Next_Item : Project_Node_Id := Empty_Node;
781 First_Case_Item : Boolean := True;
782
783 Variable_Location : Source_Ptr := No_Location;
784
785 String_Type : Project_Node_Id := Empty_Node;
786
787 Case_Variable : Project_Node_Id := Empty_Node;
788
789 First_Declarative_Item : Project_Node_Id := Empty_Node;
790
791 First_Choice : Project_Node_Id := Empty_Node;
792
793 When_Others : Boolean := False;
794 -- Set to True when there is a "when others =>" clause
795
796 begin
797 Case_Construction :=
798 Default_Project_Node
799 (Of_Kind => N_Case_Construction, In_Tree => In_Tree);
800 Set_Location_Of (Case_Construction, In_Tree, To => Token_Ptr);
801
802 -- Scan past "case"
803
804 Scan (In_Tree);
805
806 -- Get the switch variable
807
808 Expect (Tok_Identifier, "identifier");
809
810 if Token = Tok_Identifier then
811 Variable_Location := Token_Ptr;
812 Parse_Variable_Reference
813 (In_Tree => In_Tree,
814 Variable => Case_Variable,
815 Flags => Flags,
816 Current_Project => Current_Project,
817 Current_Package => Current_Package);
818 Set_Case_Variable_Reference_Of
819 (Case_Construction, In_Tree, To => Case_Variable);
820
821 else
822 if Token /= Tok_Is then
823 Scan (In_Tree);
824 end if;
825 end if;
826
827 if Present (Case_Variable) then
828 String_Type := String_Type_Of (Case_Variable, In_Tree);
829
830 if Expression_Kind_Of (Case_Variable, In_Tree) /= Single then
831 Error_Msg (Flags,
832 "variable """ &
833 Get_Name_String (Name_Of (Case_Variable, In_Tree)) &
834 """ is not a single string",
835 Variable_Location);
836 end if;
837 end if;
838
839 Expect (Tok_Is, "IS");
840
841 if Token = Tok_Is then
842 Set_End_Of_Line (Case_Construction);
843 Set_Previous_Line_Node (Case_Construction);
844 Set_Next_End_Node (Case_Construction);
845
846 -- Scan past "is"
847
848 Scan (In_Tree);
849 end if;
850
851 Start_New_Case_Construction (In_Tree, String_Type);
852
853 When_Loop :
854
855 while Token = Tok_When loop
856
857 if First_Case_Item then
858 Current_Item :=
859 Default_Project_Node
860 (Of_Kind => N_Case_Item, In_Tree => In_Tree);
861 Set_First_Case_Item_Of
862 (Case_Construction, In_Tree, To => Current_Item);
863 First_Case_Item := False;
864
865 else
866 Next_Item :=
867 Default_Project_Node
868 (Of_Kind => N_Case_Item, In_Tree => In_Tree);
869 Set_Next_Case_Item (Current_Item, In_Tree, To => Next_Item);
870 Current_Item := Next_Item;
871 end if;
872
873 Set_Location_Of (Current_Item, In_Tree, To => Token_Ptr);
874
875 -- Scan past "when"
876
877 Scan (In_Tree);
878
879 if Token = Tok_Others then
880 When_Others := True;
881
882 -- Scan past "others"
883
884 Scan (In_Tree);
885
886 Expect (Tok_Arrow, "`=>`");
887 Set_End_Of_Line (Current_Item);
888 Set_Previous_Line_Node (Current_Item);
889
890 -- Empty_Node in Field1 of a Case_Item indicates
891 -- the "when others =>" branch.
892
893 Set_First_Choice_Of (Current_Item, In_Tree, To => Empty_Node);
894
895 Parse_Declarative_Items
896 (In_Tree => In_Tree,
897 Declarations => First_Declarative_Item,
898 In_Zone => In_Case_Construction,
899 First_Attribute => First_Attribute,
900 Current_Project => Current_Project,
901 Current_Package => Current_Package,
902 Packages_To_Check => Packages_To_Check,
903 Is_Config_File => Is_Config_File,
904 Flags => Flags);
905
906 -- "when others =>" must be the last branch, so save the
907 -- Case_Item and exit
908
909 Set_First_Declarative_Item_Of
910 (Current_Item, In_Tree, To => First_Declarative_Item);
911 exit When_Loop;
912
913 else
914 Parse_Choice_List
915 (In_Tree => In_Tree,
916 First_Choice => First_Choice,
917 Flags => Flags,
918 String_Type => Present (String_Type));
919 Set_First_Choice_Of (Current_Item, In_Tree, To => First_Choice);
920
921 Expect (Tok_Arrow, "`=>`");
922 Set_End_Of_Line (Current_Item);
923 Set_Previous_Line_Node (Current_Item);
924
925 Parse_Declarative_Items
926 (In_Tree => In_Tree,
927 Declarations => First_Declarative_Item,
928 In_Zone => In_Case_Construction,
929 First_Attribute => First_Attribute,
930 Current_Project => Current_Project,
931 Current_Package => Current_Package,
932 Packages_To_Check => Packages_To_Check,
933 Is_Config_File => Is_Config_File,
934 Flags => Flags);
935
936 Set_First_Declarative_Item_Of
937 (Current_Item, In_Tree, To => First_Declarative_Item);
938
939 end if;
940 end loop When_Loop;
941
942 End_Case_Construction
943 (Check_All_Labels => not When_Others and not Quiet_Output,
944 Case_Location => Location_Of (Case_Construction, In_Tree),
945 Flags => Flags,
946 String_Type => Present (String_Type));
947
948 Expect (Tok_End, "`END CASE`");
949 Remove_Next_End_Node;
950
951 if Token = Tok_End then
952
953 -- Scan past "end"
954
955 Scan (In_Tree);
956
957 Expect (Tok_Case, "CASE");
958
959 end if;
960
961 -- Scan past "case"
962
963 Scan (In_Tree);
964
965 Expect (Tok_Semicolon, "`;`");
966 Set_Previous_End_Node (Case_Construction);
967
968 end Parse_Case_Construction;
969
970 -----------------------------
971 -- Parse_Declarative_Items --
972 -----------------------------
973
974 procedure Parse_Declarative_Items
975 (In_Tree : Project_Node_Tree_Ref;
976 Declarations : out Project_Node_Id;
977 In_Zone : Zone;
978 First_Attribute : Attribute_Node_Id;
979 Current_Project : Project_Node_Id;
980 Current_Package : Project_Node_Id;
981 Packages_To_Check : String_List_Access;
982 Is_Config_File : Boolean;
983 Flags : Processing_Flags)
984 is
985 Current_Declarative_Item : Project_Node_Id := Empty_Node;
986 Next_Declarative_Item : Project_Node_Id := Empty_Node;
987 Current_Declaration : Project_Node_Id := Empty_Node;
988 Item_Location : Source_Ptr := No_Location;
989
990 begin
991 Declarations := Empty_Node;
992
993 loop
994 -- We are always positioned at the token that precedes the first
995 -- token of the declarative element. Scan past it.
996
997 Scan (In_Tree);
998
999 Item_Location := Token_Ptr;
1000
1001 case Token is
1002 when Tok_Identifier =>
1003
1004 if In_Zone = In_Case_Construction then
1005
1006 -- Check if the variable has already been declared
1007
1008 declare
1009 The_Variable : Project_Node_Id := Empty_Node;
1010
1011 begin
1012 if Present (Current_Package) then
1013 The_Variable :=
1014 First_Variable_Of (Current_Package, In_Tree);
1015 elsif Present (Current_Project) then
1016 The_Variable :=
1017 First_Variable_Of (Current_Project, In_Tree);
1018 end if;
1019
1020 while Present (The_Variable)
1021 and then Name_Of (The_Variable, In_Tree) /=
1022 Token_Name
1023 loop
1024 The_Variable := Next_Variable (The_Variable, In_Tree);
1025 end loop;
1026
1027 -- It is an error to declare a variable in a case
1028 -- construction for the first time.
1029
1030 if No (The_Variable) then
1031 Error_Msg
1032 (Flags,
1033 "a variable cannot be declared " &
1034 "for the first time here",
1035 Token_Ptr);
1036 end if;
1037 end;
1038 end if;
1039
1040 Parse_Variable_Declaration
1041 (In_Tree,
1042 Current_Declaration,
1043 Current_Project => Current_Project,
1044 Current_Package => Current_Package,
1045 Flags => Flags);
1046
1047 Set_End_Of_Line (Current_Declaration);
1048 Set_Previous_Line_Node (Current_Declaration);
1049
1050 when Tok_For =>
1051
1052 Parse_Attribute_Declaration
1053 (In_Tree => In_Tree,
1054 Attribute => Current_Declaration,
1055 First_Attribute => First_Attribute,
1056 Current_Project => Current_Project,
1057 Current_Package => Current_Package,
1058 Packages_To_Check => Packages_To_Check,
1059 Flags => Flags);
1060
1061 Set_End_Of_Line (Current_Declaration);
1062 Set_Previous_Line_Node (Current_Declaration);
1063
1064 when Tok_Null =>
1065
1066 Scan (In_Tree); -- past "null"
1067
1068 when Tok_Package =>
1069
1070 -- Package declaration
1071
1072 if In_Zone /= In_Project then
1073 Error_Msg
1074 (Flags, "a package cannot be declared here", Token_Ptr);
1075 end if;
1076
1077 Parse_Package_Declaration
1078 (In_Tree => In_Tree,
1079 Package_Declaration => Current_Declaration,
1080 Current_Project => Current_Project,
1081 Packages_To_Check => Packages_To_Check,
1082 Is_Config_File => Is_Config_File,
1083 Flags => Flags);
1084
1085 Set_Previous_End_Node (Current_Declaration);
1086
1087 when Tok_Type =>
1088
1089 -- Type String Declaration
1090
1091 if In_Zone /= In_Project then
1092 Error_Msg (Flags,
1093 "a string type cannot be declared here",
1094 Token_Ptr);
1095 end if;
1096
1097 Parse_String_Type_Declaration
1098 (In_Tree => In_Tree,
1099 String_Type => Current_Declaration,
1100 Current_Project => Current_Project,
1101 Flags => Flags);
1102
1103 Set_End_Of_Line (Current_Declaration);
1104 Set_Previous_Line_Node (Current_Declaration);
1105
1106 when Tok_Case =>
1107
1108 -- Case construction
1109
1110 Parse_Case_Construction
1111 (In_Tree => In_Tree,
1112 Case_Construction => Current_Declaration,
1113 First_Attribute => First_Attribute,
1114 Current_Project => Current_Project,
1115 Current_Package => Current_Package,
1116 Packages_To_Check => Packages_To_Check,
1117 Is_Config_File => Is_Config_File,
1118 Flags => Flags);
1119
1120 Set_Previous_End_Node (Current_Declaration);
1121
1122 when others =>
1123 exit;
1124
1125 -- We are leaving Parse_Declarative_Items positioned
1126 -- at the first token after the list of declarative items.
1127 -- It could be "end" (for a project, a package declaration or
1128 -- a case construction) or "when" (for a case construction)
1129
1130 end case;
1131
1132 Expect (Tok_Semicolon, "`;` after declarative items");
1133
1134 -- Insert an N_Declarative_Item in the tree, but only if
1135 -- Current_Declaration is not an empty node.
1136
1137 if Present (Current_Declaration) then
1138 if No (Current_Declarative_Item) then
1139 Current_Declarative_Item :=
1140 Default_Project_Node
1141 (Of_Kind => N_Declarative_Item, In_Tree => In_Tree);
1142 Declarations := Current_Declarative_Item;
1143
1144 else
1145 Next_Declarative_Item :=
1146 Default_Project_Node
1147 (Of_Kind => N_Declarative_Item, In_Tree => In_Tree);
1148 Set_Next_Declarative_Item
1149 (Current_Declarative_Item, In_Tree,
1150 To => Next_Declarative_Item);
1151 Current_Declarative_Item := Next_Declarative_Item;
1152 end if;
1153
1154 Set_Current_Item_Node
1155 (Current_Declarative_Item, In_Tree,
1156 To => Current_Declaration);
1157 Set_Location_Of
1158 (Current_Declarative_Item, In_Tree, To => Item_Location);
1159 end if;
1160 end loop;
1161 end Parse_Declarative_Items;
1162
1163 -------------------------------
1164 -- Parse_Package_Declaration --
1165 -------------------------------
1166
1167 procedure Parse_Package_Declaration
1168 (In_Tree : Project_Node_Tree_Ref;
1169 Package_Declaration : out Project_Node_Id;
1170 Current_Project : Project_Node_Id;
1171 Packages_To_Check : String_List_Access;
1172 Is_Config_File : Boolean;
1173 Flags : Processing_Flags)
1174 is
1175 First_Attribute : Attribute_Node_Id := Empty_Attribute;
1176 Current_Package : Package_Node_Id := Empty_Package;
1177 First_Declarative_Item : Project_Node_Id := Empty_Node;
1178 Package_Location : constant Source_Ptr := Token_Ptr;
1179 Renaming : Boolean := False;
1180 Extending : Boolean := False;
1181
1182 begin
1183 Package_Declaration :=
1184 Default_Project_Node
1185 (Of_Kind => N_Package_Declaration, In_Tree => In_Tree);
1186 Set_Location_Of (Package_Declaration, In_Tree, To => Package_Location);
1187
1188 -- Scan past "package"
1189
1190 Scan (In_Tree);
1191 Expect (Tok_Identifier, "identifier");
1192
1193 if Token = Tok_Identifier then
1194 Set_Name_Of (Package_Declaration, In_Tree, To => Token_Name);
1195
1196 Current_Package := Package_Node_Id_Of (Token_Name);
1197
1198 if Current_Package = Empty_Package then
1199 if not Quiet_Output then
1200 declare
1201 List : constant Strings.String_List := Package_Name_List;
1202 Index : Natural;
1203 Name : constant String := Get_Name_String (Token_Name);
1204
1205 begin
1206 -- Check for possible misspelling of a known package name
1207
1208 Index := 0;
1209 loop
1210 if Index >= List'Last then
1211 Index := 0;
1212 exit;
1213 end if;
1214
1215 Index := Index + 1;
1216 exit when
1217 GNAT.Spelling_Checker.Is_Bad_Spelling_Of
1218 (Name, List (Index).all);
1219 end loop;
1220
1221 -- Issue warning(s) in verbose mode or when a possible
1222 -- misspelling has been found.
1223
1224 if Verbose_Mode or else Index /= 0 then
1225 Error_Msg (Flags,
1226 "?""" &
1227 Get_Name_String
1228 (Name_Of (Package_Declaration, In_Tree)) &
1229 """ is not a known package name",
1230 Token_Ptr);
1231 end if;
1232
1233 if Index /= 0 then
1234 Error_Msg -- CODEFIX
1235 (Flags,
1236 "\?possible misspelling of """ &
1237 List (Index).all & """", Token_Ptr);
1238 end if;
1239 end;
1240 end if;
1241
1242 -- Set the package declaration to "ignored" so that it is not
1243 -- processed by Prj.Proc.Process.
1244
1245 Set_Expression_Kind_Of (Package_Declaration, In_Tree, Ignored);
1246
1247 -- Add the unknown package in the list of packages
1248
1249 Add_Unknown_Package (Token_Name, Current_Package);
1250
1251 elsif Current_Package = Unknown_Package then
1252
1253 -- Set the package declaration to "ignored" so that it is not
1254 -- processed by Prj.Proc.Process.
1255
1256 Set_Expression_Kind_Of (Package_Declaration, In_Tree, Ignored);
1257
1258 else
1259 First_Attribute := First_Attribute_Of (Current_Package);
1260 end if;
1261
1262 Set_Package_Id_Of
1263 (Package_Declaration, In_Tree, To => Current_Package);
1264
1265 declare
1266 Current : Project_Node_Id :=
1267 First_Package_Of (Current_Project, In_Tree);
1268
1269 begin
1270 while Present (Current)
1271 and then Name_Of (Current, In_Tree) /= Token_Name
1272 loop
1273 Current := Next_Package_In_Project (Current, In_Tree);
1274 end loop;
1275
1276 if Present (Current) then
1277 Error_Msg
1278 (Flags,
1279 "package """ &
1280 Get_Name_String (Name_Of (Package_Declaration, In_Tree)) &
1281 """ is declared twice in the same project",
1282 Token_Ptr);
1283
1284 else
1285 -- Add the package to the project list
1286
1287 Set_Next_Package_In_Project
1288 (Package_Declaration, In_Tree,
1289 To => First_Package_Of (Current_Project, In_Tree));
1290 Set_First_Package_Of
1291 (Current_Project, In_Tree, To => Package_Declaration);
1292 end if;
1293 end;
1294
1295 -- Scan past the package name
1296
1297 Scan (In_Tree);
1298 end if;
1299
1300 Check_Package_Allowed
1301 (In_Tree, Current_Project, Package_Declaration, Flags);
1302
1303 if Token = Tok_Renames then
1304 Renaming := True;
1305 elsif Token = Tok_Extends then
1306 Extending := True;
1307 end if;
1308
1309 if Renaming or else Extending then
1310 if Is_Config_File then
1311 Error_Msg
1312 (Flags,
1313 "no package rename or extension in configuration projects",
1314 Token_Ptr);
1315 end if;
1316
1317 -- Scan past "renames" or "extends"
1318
1319 Scan (In_Tree);
1320
1321 Expect (Tok_Identifier, "identifier");
1322
1323 if Token = Tok_Identifier then
1324 declare
1325 Project_Name : constant Name_Id := Token_Name;
1326
1327 Clause : Project_Node_Id :=
1328 First_With_Clause_Of (Current_Project, In_Tree);
1329 The_Project : Project_Node_Id := Empty_Node;
1330 Extended : constant Project_Node_Id :=
1331 Extended_Project_Of
1332 (Project_Declaration_Of
1333 (Current_Project, In_Tree),
1334 In_Tree);
1335 begin
1336 while Present (Clause) loop
1337 -- Only non limited imported projects may be used in a
1338 -- renames declaration.
1339
1340 The_Project :=
1341 Non_Limited_Project_Node_Of (Clause, In_Tree);
1342 exit when Present (The_Project)
1343 and then Name_Of (The_Project, In_Tree) = Project_Name;
1344 Clause := Next_With_Clause_Of (Clause, In_Tree);
1345 end loop;
1346
1347 if No (Clause) then
1348 -- As we have not found the project in the imports, we check
1349 -- if it's the name of an eventual extended project.
1350
1351 if Present (Extended)
1352 and then Name_Of (Extended, In_Tree) = Project_Name
1353 then
1354 Set_Project_Of_Renamed_Package_Of
1355 (Package_Declaration, In_Tree, To => Extended);
1356 else
1357 Error_Msg_Name_1 := Project_Name;
1358 Error_Msg
1359 (Flags,
1360 "% is not an imported or extended project", Token_Ptr);
1361 end if;
1362 else
1363 Set_Project_Of_Renamed_Package_Of
1364 (Package_Declaration, In_Tree, To => The_Project);
1365 end if;
1366 end;
1367
1368 Scan (In_Tree);
1369 Expect (Tok_Dot, "`.`");
1370
1371 if Token = Tok_Dot then
1372 Scan (In_Tree);
1373 Expect (Tok_Identifier, "identifier");
1374
1375 if Token = Tok_Identifier then
1376 if Name_Of (Package_Declaration, In_Tree) /= Token_Name then
1377 Error_Msg (Flags, "not the same package name", Token_Ptr);
1378 elsif
1379 Present (Project_Of_Renamed_Package_Of
1380 (Package_Declaration, In_Tree))
1381 then
1382 declare
1383 Current : Project_Node_Id :=
1384 First_Package_Of
1385 (Project_Of_Renamed_Package_Of
1386 (Package_Declaration, In_Tree),
1387 In_Tree);
1388
1389 begin
1390 while Present (Current)
1391 and then Name_Of (Current, In_Tree) /= Token_Name
1392 loop
1393 Current :=
1394 Next_Package_In_Project (Current, In_Tree);
1395 end loop;
1396
1397 if No (Current) then
1398 Error_Msg
1399 (Flags, """" &
1400 Get_Name_String (Token_Name) &
1401 """ is not a package declared by the project",
1402 Token_Ptr);
1403 end if;
1404 end;
1405 end if;
1406
1407 Scan (In_Tree);
1408 end if;
1409 end if;
1410 end if;
1411 end if;
1412
1413 if Renaming then
1414 Expect (Tok_Semicolon, "`;`");
1415 Set_End_Of_Line (Package_Declaration);
1416 Set_Previous_Line_Node (Package_Declaration);
1417
1418 elsif Token = Tok_Is then
1419 Set_End_Of_Line (Package_Declaration);
1420 Set_Previous_Line_Node (Package_Declaration);
1421 Set_Next_End_Node (Package_Declaration);
1422
1423 Parse_Declarative_Items
1424 (In_Tree => In_Tree,
1425 Declarations => First_Declarative_Item,
1426 In_Zone => In_Package,
1427 First_Attribute => First_Attribute,
1428 Current_Project => Current_Project,
1429 Current_Package => Package_Declaration,
1430 Packages_To_Check => Packages_To_Check,
1431 Is_Config_File => Is_Config_File,
1432 Flags => Flags);
1433
1434 Set_First_Declarative_Item_Of
1435 (Package_Declaration, In_Tree, To => First_Declarative_Item);
1436
1437 Expect (Tok_End, "END");
1438
1439 if Token = Tok_End then
1440
1441 -- Scan past "end"
1442
1443 Scan (In_Tree);
1444 end if;
1445
1446 -- We should have the name of the package after "end"
1447
1448 Expect (Tok_Identifier, "identifier");
1449
1450 if Token = Tok_Identifier
1451 and then Name_Of (Package_Declaration, In_Tree) /= No_Name
1452 and then Token_Name /= Name_Of (Package_Declaration, In_Tree)
1453 then
1454 Error_Msg_Name_1 := Name_Of (Package_Declaration, In_Tree);
1455 Error_Msg (Flags, "expected %%", Token_Ptr);
1456 end if;
1457
1458 if Token /= Tok_Semicolon then
1459
1460 -- Scan past the package name
1461
1462 Scan (In_Tree);
1463 end if;
1464
1465 Expect (Tok_Semicolon, "`;`");
1466 Remove_Next_End_Node;
1467
1468 else
1469 Error_Msg (Flags, "expected IS", Token_Ptr);
1470 end if;
1471
1472 end Parse_Package_Declaration;
1473
1474 -----------------------------------
1475 -- Parse_String_Type_Declaration --
1476 -----------------------------------
1477
1478 procedure Parse_String_Type_Declaration
1479 (In_Tree : Project_Node_Tree_Ref;
1480 String_Type : out Project_Node_Id;
1481 Current_Project : Project_Node_Id;
1482 Flags : Processing_Flags)
1483 is
1484 Current : Project_Node_Id := Empty_Node;
1485 First_String : Project_Node_Id := Empty_Node;
1486
1487 begin
1488 String_Type :=
1489 Default_Project_Node
1490 (Of_Kind => N_String_Type_Declaration, In_Tree => In_Tree);
1491
1492 Set_Location_Of (String_Type, In_Tree, To => Token_Ptr);
1493
1494 -- Scan past "type"
1495
1496 Scan (In_Tree);
1497
1498 Expect (Tok_Identifier, "identifier");
1499
1500 if Token = Tok_Identifier then
1501 Set_Name_Of (String_Type, In_Tree, To => Token_Name);
1502
1503 Current := First_String_Type_Of (Current_Project, In_Tree);
1504 while Present (Current)
1505 and then
1506 Name_Of (Current, In_Tree) /= Token_Name
1507 loop
1508 Current := Next_String_Type (Current, In_Tree);
1509 end loop;
1510
1511 if Present (Current) then
1512 Error_Msg (Flags,
1513 "duplicate string type name """ &
1514 Get_Name_String (Token_Name) &
1515 """",
1516 Token_Ptr);
1517 else
1518 Current := First_Variable_Of (Current_Project, In_Tree);
1519 while Present (Current)
1520 and then Name_Of (Current, In_Tree) /= Token_Name
1521 loop
1522 Current := Next_Variable (Current, In_Tree);
1523 end loop;
1524
1525 if Present (Current) then
1526 Error_Msg (Flags,
1527 """" &
1528 Get_Name_String (Token_Name) &
1529 """ is already a variable name", Token_Ptr);
1530 else
1531 Set_Next_String_Type
1532 (String_Type, In_Tree,
1533 To => First_String_Type_Of (Current_Project, In_Tree));
1534 Set_First_String_Type_Of
1535 (Current_Project, In_Tree, To => String_Type);
1536 end if;
1537 end if;
1538
1539 -- Scan past the name
1540
1541 Scan (In_Tree);
1542 end if;
1543
1544 Expect (Tok_Is, "IS");
1545
1546 if Token = Tok_Is then
1547 Scan (In_Tree);
1548 end if;
1549
1550 Expect (Tok_Left_Paren, "`(`");
1551
1552 if Token = Tok_Left_Paren then
1553 Scan (In_Tree);
1554 end if;
1555
1556 Parse_String_Type_List
1557 (In_Tree => In_Tree, First_String => First_String, Flags => Flags);
1558 Set_First_Literal_String (String_Type, In_Tree, To => First_String);
1559
1560 Expect (Tok_Right_Paren, "`)`");
1561
1562 if Token = Tok_Right_Paren then
1563 Scan (In_Tree);
1564 end if;
1565 end Parse_String_Type_Declaration;
1566
1567 --------------------------------
1568 -- Parse_Variable_Declaration --
1569 --------------------------------
1570
1571 procedure Parse_Variable_Declaration
1572 (In_Tree : Project_Node_Tree_Ref;
1573 Variable : out Project_Node_Id;
1574 Current_Project : Project_Node_Id;
1575 Current_Package : Project_Node_Id;
1576 Flags : Processing_Flags)
1577 is
1578 Expression_Location : Source_Ptr;
1579 String_Type_Name : Name_Id := No_Name;
1580 Project_String_Type_Name : Name_Id := No_Name;
1581 Type_Location : Source_Ptr := No_Location;
1582 Project_Location : Source_Ptr := No_Location;
1583 Expression : Project_Node_Id := Empty_Node;
1584 Variable_Name : constant Name_Id := Token_Name;
1585 OK : Boolean := True;
1586
1587 begin
1588 Variable :=
1589 Default_Project_Node
1590 (Of_Kind => N_Variable_Declaration, In_Tree => In_Tree);
1591 Set_Name_Of (Variable, In_Tree, To => Variable_Name);
1592 Set_Location_Of (Variable, In_Tree, To => Token_Ptr);
1593
1594 -- Scan past the variable name
1595
1596 Scan (In_Tree);
1597
1598 if Token = Tok_Colon then
1599
1600 -- Typed string variable declaration
1601
1602 Scan (In_Tree);
1603 Set_Kind_Of (Variable, In_Tree, N_Typed_Variable_Declaration);
1604 Expect (Tok_Identifier, "identifier");
1605
1606 OK := Token = Tok_Identifier;
1607
1608 if OK then
1609 String_Type_Name := Token_Name;
1610 Type_Location := Token_Ptr;
1611 Scan (In_Tree);
1612
1613 if Token = Tok_Dot then
1614 Project_String_Type_Name := String_Type_Name;
1615 Project_Location := Type_Location;
1616
1617 -- Scan past the dot
1618
1619 Scan (In_Tree);
1620 Expect (Tok_Identifier, "identifier");
1621
1622 if Token = Tok_Identifier then
1623 String_Type_Name := Token_Name;
1624 Type_Location := Token_Ptr;
1625 Scan (In_Tree);
1626 else
1627 OK := False;
1628 end if;
1629 end if;
1630
1631 if OK then
1632 declare
1633 Proj : Project_Node_Id := Current_Project;
1634 Current : Project_Node_Id := Empty_Node;
1635
1636 begin
1637 if Project_String_Type_Name /= No_Name then
1638 declare
1639 The_Project_Name_And_Node : constant
1640 Tree_Private_Part.Project_Name_And_Node :=
1641 Tree_Private_Part.Projects_Htable.Get
1642 (In_Tree.Projects_HT, Project_String_Type_Name);
1643
1644 use Tree_Private_Part;
1645
1646 begin
1647 if The_Project_Name_And_Node =
1648 Tree_Private_Part.No_Project_Name_And_Node
1649 then
1650 Error_Msg (Flags,
1651 "unknown project """ &
1652 Get_Name_String
1653 (Project_String_Type_Name) &
1654 """",
1655 Project_Location);
1656 Current := Empty_Node;
1657 else
1658 Current :=
1659 First_String_Type_Of
1660 (The_Project_Name_And_Node.Node, In_Tree);
1661 while
1662 Present (Current)
1663 and then
1664 Name_Of (Current, In_Tree) /= String_Type_Name
1665 loop
1666 Current := Next_String_Type (Current, In_Tree);
1667 end loop;
1668 end if;
1669 end;
1670
1671 else
1672 -- Look for a string type with the correct name in this
1673 -- project or in any of its ancestors.
1674
1675 loop
1676 Current :=
1677 First_String_Type_Of (Proj, In_Tree);
1678 while
1679 Present (Current)
1680 and then
1681 Name_Of (Current, In_Tree) /= String_Type_Name
1682 loop
1683 Current := Next_String_Type (Current, In_Tree);
1684 end loop;
1685
1686 exit when Present (Current);
1687
1688 Proj := Parent_Project_Of (Proj, In_Tree);
1689 exit when No (Proj);
1690 end loop;
1691 end if;
1692
1693 if No (Current) then
1694 Error_Msg (Flags,
1695 "unknown string type """ &
1696 Get_Name_String (String_Type_Name) &
1697 """",
1698 Type_Location);
1699 OK := False;
1700
1701 else
1702 Set_String_Type_Of
1703 (Variable, In_Tree, To => Current);
1704 end if;
1705 end;
1706 end if;
1707 end if;
1708 end if;
1709
1710 Expect (Tok_Colon_Equal, "`:=`");
1711
1712 OK := OK and then Token = Tok_Colon_Equal;
1713
1714 if Token = Tok_Colon_Equal then
1715 Scan (In_Tree);
1716 end if;
1717
1718 -- Get the single string or string list value
1719
1720 Expression_Location := Token_Ptr;
1721
1722 Parse_Expression
1723 (In_Tree => In_Tree,
1724 Expression => Expression,
1725 Flags => Flags,
1726 Current_Project => Current_Project,
1727 Current_Package => Current_Package,
1728 Optional_Index => False);
1729 Set_Expression_Of (Variable, In_Tree, To => Expression);
1730
1731 if Present (Expression) then
1732 -- A typed string must have a single string value, not a list
1733
1734 if Kind_Of (Variable, In_Tree) = N_Typed_Variable_Declaration
1735 and then Expression_Kind_Of (Expression, In_Tree) = List
1736 then
1737 Error_Msg
1738 (Flags,
1739 "expression must be a single string", Expression_Location);
1740 end if;
1741
1742 Set_Expression_Kind_Of
1743 (Variable, In_Tree,
1744 To => Expression_Kind_Of (Expression, In_Tree));
1745 end if;
1746
1747 if OK then
1748 declare
1749 The_Variable : Project_Node_Id := Empty_Node;
1750
1751 begin
1752 if Present (Current_Package) then
1753 The_Variable := First_Variable_Of (Current_Package, In_Tree);
1754 elsif Present (Current_Project) then
1755 The_Variable := First_Variable_Of (Current_Project, In_Tree);
1756 end if;
1757
1758 while Present (The_Variable)
1759 and then Name_Of (The_Variable, In_Tree) /= Variable_Name
1760 loop
1761 The_Variable := Next_Variable (The_Variable, In_Tree);
1762 end loop;
1763
1764 if No (The_Variable) then
1765 if Present (Current_Package) then
1766 Set_Next_Variable
1767 (Variable, In_Tree,
1768 To => First_Variable_Of (Current_Package, In_Tree));
1769 Set_First_Variable_Of
1770 (Current_Package, In_Tree, To => Variable);
1771
1772 elsif Present (Current_Project) then
1773 Set_Next_Variable
1774 (Variable, In_Tree,
1775 To => First_Variable_Of (Current_Project, In_Tree));
1776 Set_First_Variable_Of
1777 (Current_Project, In_Tree, To => Variable);
1778 end if;
1779
1780 else
1781 if Expression_Kind_Of (Variable, In_Tree) /= Undefined then
1782 if Expression_Kind_Of (The_Variable, In_Tree) =
1783 Undefined
1784 then
1785 Set_Expression_Kind_Of
1786 (The_Variable, In_Tree,
1787 To => Expression_Kind_Of (Variable, In_Tree));
1788
1789 else
1790 if Expression_Kind_Of (The_Variable, In_Tree) /=
1791 Expression_Kind_Of (Variable, In_Tree)
1792 then
1793 Error_Msg (Flags,
1794 "wrong expression kind for variable """ &
1795 Get_Name_String
1796 (Name_Of (The_Variable, In_Tree)) &
1797 """",
1798 Expression_Location);
1799 end if;
1800 end if;
1801 end if;
1802 end if;
1803 end;
1804 end if;
1805 end Parse_Variable_Declaration;
1806
1807 end Prj.Dect;
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