1------------------------------------------------------------------------------ 2-- -- 3-- GNAT COMPILER COMPONENTS -- 4-- -- 5-- P A R . P R A G -- 6-- -- 7-- B o d y -- 8-- -- 9-- Copyright (C) 1992-2015, 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-- Generally the parser checks the basic syntax of pragmas, but does not 27-- do specialized syntax checks for individual pragmas, these are deferred 28-- to semantic analysis time (see unit Sem_Prag). There are some pragmas 29-- which require recognition and either partial or complete processing 30-- during parsing, and this unit performs this required processing. 31 32with Fname.UF; use Fname.UF; 33with Osint; use Osint; 34with Rident; use Rident; 35with Restrict; use Restrict; 36with Stringt; use Stringt; 37with Stylesw; use Stylesw; 38with Uintp; use Uintp; 39with Uname; use Uname; 40 41with System.WCh_Con; use System.WCh_Con; 42 43separate (Par) 44 45function Prag (Pragma_Node : Node_Id; Semi : Source_Ptr) return Node_Id is 46 Prag_Name : constant Name_Id := Pragma_Name (Pragma_Node); 47 Prag_Id : constant Pragma_Id := Get_Pragma_Id (Prag_Name); 48 Pragma_Sloc : constant Source_Ptr := Sloc (Pragma_Node); 49 Arg_Count : Nat; 50 Arg_Node : Node_Id; 51 52 ----------------------- 53 -- Local Subprograms -- 54 ----------------------- 55 56 procedure Add_List_Pragma_Entry (PT : List_Pragma_Type; Loc : Source_Ptr); 57 -- Make a new entry in the List_Pragmas table if this entry is not already 58 -- in the table (it will always be the last one if there is a duplication 59 -- resulting from the use of Save/Restore_Scan_State). 60 61 function Arg1 return Node_Id; 62 function Arg2 return Node_Id; 63 function Arg3 return Node_Id; 64 -- Obtain specified Pragma_Argument_Association. It is allowable to call 65 -- the routine for the argument one past the last present argument, but 66 -- that is the only case in which a non-present argument can be referenced. 67 68 procedure Check_Arg_Count (Required : Int); 69 -- Check argument count for pragma = Required. If not give error and raise 70 -- Error_Resync. 71 72 procedure Check_Arg_Is_String_Literal (Arg : Node_Id); 73 -- Check the expression of the specified argument to make sure that it 74 -- is a string literal. If not give error and raise Error_Resync. 75 76 procedure Check_Arg_Is_On_Or_Off (Arg : Node_Id); 77 -- Check the expression of the specified argument to make sure that it 78 -- is an identifier which is either ON or OFF, and if not, then issue 79 -- an error message and raise Error_Resync. 80 81 procedure Check_No_Identifier (Arg : Node_Id); 82 -- Checks that the given argument does not have an identifier. If 83 -- an identifier is present, then an error message is issued, and 84 -- Error_Resync is raised. 85 86 procedure Check_Optional_Identifier (Arg : Node_Id; Id : Name_Id); 87 -- Checks if the given argument has an identifier, and if so, requires 88 -- it to match the given identifier name. If there is a non-matching 89 -- identifier, then an error message is given and Error_Resync raised. 90 91 procedure Check_Required_Identifier (Arg : Node_Id; Id : Name_Id); 92 -- Same as Check_Optional_Identifier, except that the name is required 93 -- to be present and to match the given Id value. 94 95 procedure Process_Restrictions_Or_Restriction_Warnings; 96 -- Common processing for Restrictions and Restriction_Warnings pragmas. 97 -- For the most part, restrictions need not be processed at parse time, 98 -- since they only affect semantic processing. This routine handles the 99 -- exceptions as follows 100 -- 101 -- No_Obsolescent_Features must be processed at parse time, since there 102 -- are some obsolescent features (e.g. character replacements) which are 103 -- handled at parse time. 104 -- 105 -- SPARK must be processed at parse time, since this restriction controls 106 -- whether the scanner recognizes a spark HIDE directive formatted as an 107 -- Ada comment (and generates a Tok_SPARK_Hide token for the directive). 108 -- 109 -- No_Dependence must be processed at parse time, since otherwise it gets 110 -- handled too late. 111 -- 112 -- Note that we don't need to do full error checking for badly formed cases 113 -- of restrictions, since these will be caught during semantic analysis. 114 115 --------------------------- 116 -- Add_List_Pragma_Entry -- 117 --------------------------- 118 119 procedure Add_List_Pragma_Entry (PT : List_Pragma_Type; Loc : Source_Ptr) is 120 begin 121 if List_Pragmas.Last < List_Pragmas.First 122 or else (List_Pragmas.Table (List_Pragmas.Last)) /= ((PT, Loc)) 123 then 124 List_Pragmas.Append ((PT, Loc)); 125 end if; 126 end Add_List_Pragma_Entry; 127 128 ---------- 129 -- Arg1 -- 130 ---------- 131 132 function Arg1 return Node_Id is 133 begin 134 return First (Pragma_Argument_Associations (Pragma_Node)); 135 end Arg1; 136 137 ---------- 138 -- Arg2 -- 139 ---------- 140 141 function Arg2 return Node_Id is 142 begin 143 return Next (Arg1); 144 end Arg2; 145 146 ---------- 147 -- Arg3 -- 148 ---------- 149 150 function Arg3 return Node_Id is 151 begin 152 return Next (Arg2); 153 end Arg3; 154 155 --------------------- 156 -- Check_Arg_Count -- 157 --------------------- 158 159 procedure Check_Arg_Count (Required : Int) is 160 begin 161 if Arg_Count /= Required then 162 Error_Msg ("wrong number of arguments for pragma%", Pragma_Sloc); 163 raise Error_Resync; 164 end if; 165 end Check_Arg_Count; 166 167 ---------------------------- 168 -- Check_Arg_Is_On_Or_Off -- 169 ---------------------------- 170 171 procedure Check_Arg_Is_On_Or_Off (Arg : Node_Id) is 172 Argx : constant Node_Id := Expression (Arg); 173 174 begin 175 if Nkind (Expression (Arg)) /= N_Identifier 176 or else not Nam_In (Chars (Argx), Name_On, Name_Off) 177 then 178 Error_Msg_Name_2 := Name_On; 179 Error_Msg_Name_3 := Name_Off; 180 181 Error_Msg ("argument for pragma% must be% or%", Sloc (Argx)); 182 raise Error_Resync; 183 end if; 184 end Check_Arg_Is_On_Or_Off; 185 186 --------------------------------- 187 -- Check_Arg_Is_String_Literal -- 188 --------------------------------- 189 190 procedure Check_Arg_Is_String_Literal (Arg : Node_Id) is 191 begin 192 if Nkind (Expression (Arg)) /= N_String_Literal then 193 Error_Msg 194 ("argument for pragma% must be string literal", 195 Sloc (Expression (Arg))); 196 raise Error_Resync; 197 end if; 198 end Check_Arg_Is_String_Literal; 199 200 ------------------------- 201 -- Check_No_Identifier -- 202 ------------------------- 203 204 procedure Check_No_Identifier (Arg : Node_Id) is 205 begin 206 if Chars (Arg) /= No_Name then 207 Error_Msg_N ("pragma% does not permit named arguments", Arg); 208 raise Error_Resync; 209 end if; 210 end Check_No_Identifier; 211 212 ------------------------------- 213 -- Check_Optional_Identifier -- 214 ------------------------------- 215 216 procedure Check_Optional_Identifier (Arg : Node_Id; Id : Name_Id) is 217 begin 218 if Present (Arg) and then Chars (Arg) /= No_Name then 219 if Chars (Arg) /= Id then 220 Error_Msg_Name_2 := Id; 221 Error_Msg_N ("pragma% argument expects identifier%", Arg); 222 end if; 223 end if; 224 end Check_Optional_Identifier; 225 226 ------------------------------- 227 -- Check_Required_Identifier -- 228 ------------------------------- 229 230 procedure Check_Required_Identifier (Arg : Node_Id; Id : Name_Id) is 231 begin 232 if Chars (Arg) /= Id then 233 Error_Msg_Name_2 := Id; 234 Error_Msg_N ("pragma% argument must have identifier%", Arg); 235 end if; 236 end Check_Required_Identifier; 237 238 -------------------------------------------------- 239 -- Process_Restrictions_Or_Restriction_Warnings -- 240 -------------------------------------------------- 241 242 procedure Process_Restrictions_Or_Restriction_Warnings is 243 Arg : Node_Id; 244 Id : Name_Id; 245 Expr : Node_Id; 246 247 begin 248 Arg := Arg1; 249 while Present (Arg) loop 250 Id := Chars (Arg); 251 Expr := Expression (Arg); 252 253 if Id = No_Name and then Nkind (Expr) = N_Identifier then 254 case Chars (Expr) is 255 when Name_No_Obsolescent_Features => 256 Set_Restriction (No_Obsolescent_Features, Pragma_Node); 257 Restriction_Warnings (No_Obsolescent_Features) := 258 Prag_Id = Pragma_Restriction_Warnings; 259 260 when Name_SPARK | Name_SPARK_05 => 261 Set_Restriction (SPARK_05, Pragma_Node); 262 Restriction_Warnings (SPARK_05) := 263 Prag_Id = Pragma_Restriction_Warnings; 264 265 when others => 266 null; 267 end case; 268 269 elsif Id = Name_No_Dependence then 270 Set_Restriction_No_Dependence 271 (Unit => Expr, 272 Warn => Prag_Id = Pragma_Restriction_Warnings 273 or else Treat_Restrictions_As_Warnings); 274 end if; 275 276 Next (Arg); 277 end loop; 278 end Process_Restrictions_Or_Restriction_Warnings; 279 280-- Start of processing for Prag 281 282begin 283 Error_Msg_Name_1 := Prag_Name; 284 285 -- Ignore unrecognized pragma. We let Sem post the warning for this, since 286 -- it is a semantic error, not a syntactic one (we have already checked 287 -- the syntax for the unrecognized pragma as required by (RM 2.8(11)). 288 289 if Prag_Id = Unknown_Pragma then 290 return Pragma_Node; 291 end if; 292 293 -- Ignore pragma previously flagged by Ignore_Pragma 294 295 if Get_Name_Table_Boolean3 (Prag_Name) then 296 return Pragma_Node; 297 end if; 298 299 -- Count number of arguments. This loop also checks if any of the arguments 300 -- are Error, indicating a syntax error as they were parsed. If so, we 301 -- simply return, because we get into trouble with cascaded errors if we 302 -- try to perform our error checks on junk arguments. 303 304 Arg_Count := 0; 305 306 if Present (Pragma_Argument_Associations (Pragma_Node)) then 307 Arg_Node := Arg1; 308 while Arg_Node /= Empty loop 309 Arg_Count := Arg_Count + 1; 310 311 if Expression (Arg_Node) = Error then 312 return Error; 313 end if; 314 315 Next (Arg_Node); 316 end loop; 317 end if; 318 319 -- Remaining processing is pragma dependent 320 321 case Prag_Id is 322 323 ------------ 324 -- Ada_83 -- 325 ------------ 326 327 -- This pragma must be processed at parse time, since we want to set 328 -- the Ada version properly at parse time to recognize the appropriate 329 -- Ada version syntax. 330 331 when Pragma_Ada_83 => 332 Ada_Version := Ada_83; 333 Ada_Version_Explicit := Ada_83; 334 Ada_Version_Pragma := Pragma_Node; 335 336 ------------ 337 -- Ada_95 -- 338 ------------ 339 340 -- This pragma must be processed at parse time, since we want to set 341 -- the Ada version properly at parse time to recognize the appropriate 342 -- Ada version syntax. 343 344 when Pragma_Ada_95 => 345 Ada_Version := Ada_95; 346 Ada_Version_Explicit := Ada_95; 347 Ada_Version_Pragma := Pragma_Node; 348 349 --------------------- 350 -- Ada_05/Ada_2005 -- 351 --------------------- 352 353 -- These pragmas must be processed at parse time, since we want to set 354 -- the Ada version properly at parse time to recognize the appropriate 355 -- Ada version syntax. However, it is only the zero argument form that 356 -- must be processed at parse time. 357 358 when Pragma_Ada_05 | Pragma_Ada_2005 => 359 if Arg_Count = 0 then 360 Ada_Version := Ada_2005; 361 Ada_Version_Explicit := Ada_2005; 362 Ada_Version_Pragma := Pragma_Node; 363 end if; 364 365 --------------------- 366 -- Ada_12/Ada_2012 -- 367 --------------------- 368 369 -- These pragmas must be processed at parse time, since we want to set 370 -- the Ada version properly at parse time to recognize the appropriate 371 -- Ada version syntax. However, it is only the zero argument form that 372 -- must be processed at parse time. 373 374 when Pragma_Ada_12 | Pragma_Ada_2012 => 375 if Arg_Count = 0 then 376 Ada_Version := Ada_2012; 377 Ada_Version_Explicit := Ada_2012; 378 Ada_Version_Pragma := Pragma_Node; 379 end if; 380 381 --------------------------- 382 -- Compiler_Unit_Warning -- 383 --------------------------- 384 385 -- This pragma must be processed at parse time, since the resulting 386 -- status may be tested during the parsing of the program. 387 388 when Pragma_Compiler_Unit | Pragma_Compiler_Unit_Warning => 389 Check_Arg_Count (0); 390 391 -- Only recognized in main unit 392 393 if Current_Source_Unit = Main_Unit then 394 Compiler_Unit := True; 395 end if; 396 397 ----------- 398 -- Debug -- 399 ----------- 400 401 -- pragma Debug ([boolean_EXPRESSION,] PROCEDURE_CALL_STATEMENT); 402 403 when Pragma_Debug => 404 Check_No_Identifier (Arg1); 405 406 if Arg_Count = 2 then 407 Check_No_Identifier (Arg2); 408 else 409 Check_Arg_Count (1); 410 end if; 411 412 ------------------------------- 413 -- Extensions_Allowed (GNAT) -- 414 ------------------------------- 415 416 -- pragma Extensions_Allowed (Off | On) 417 418 -- The processing for pragma Extensions_Allowed must be done at 419 -- parse time, since extensions mode may affect what is accepted. 420 421 when Pragma_Extensions_Allowed => 422 Check_Arg_Count (1); 423 Check_No_Identifier (Arg1); 424 Check_Arg_Is_On_Or_Off (Arg1); 425 426 if Chars (Expression (Arg1)) = Name_On then 427 Extensions_Allowed := True; 428 Ada_Version := Ada_2012; 429 else 430 Extensions_Allowed := False; 431 Ada_Version := Ada_Version_Explicit; 432 end if; 433 434 ------------------- 435 -- Ignore_Pragma -- 436 ------------------- 437 438 -- Processing for this pragma must be done at parse time, since we want 439 -- be able to ignore pragmas that are otherwise processed at parse time. 440 441 when Pragma_Ignore_Pragma => Ignore_Pragma : declare 442 A : Node_Id; 443 444 begin 445 Check_Arg_Count (1); 446 Check_No_Identifier (Arg1); 447 A := Expression (Arg1); 448 449 if Nkind (A) /= N_Identifier then 450 Error_Msg ("incorrect argument for pragma %", Sloc (A)); 451 else 452 Set_Name_Table_Boolean3 (Chars (A), True); 453 end if; 454 end Ignore_Pragma; 455 456 ---------------- 457 -- List (2.8) -- 458 ---------------- 459 460 -- pragma List (Off | On) 461 462 -- The processing for pragma List must be done at parse time, since a 463 -- listing can be generated in parse only mode. 464 465 when Pragma_List => 466 Check_Arg_Count (1); 467 Check_No_Identifier (Arg1); 468 Check_Arg_Is_On_Or_Off (Arg1); 469 470 -- We unconditionally make a List_On entry for the pragma, so that 471 -- in the List (Off) case, the pragma will print even in a region 472 -- of code with listing turned off (this is required). 473 474 Add_List_Pragma_Entry (List_On, Sloc (Pragma_Node)); 475 476 -- Now generate the list off entry for pragma List (Off) 477 478 if Chars (Expression (Arg1)) = Name_Off then 479 Add_List_Pragma_Entry (List_Off, Semi); 480 end if; 481 482 ---------------- 483 -- Page (2.8) -- 484 ---------------- 485 486 -- pragma Page; 487 488 -- Processing for this pragma must be done at parse time, since a 489 -- listing can be generated in parse only mode with semantics off. 490 491 when Pragma_Page => 492 Check_Arg_Count (0); 493 Add_List_Pragma_Entry (Page, Semi); 494 495 ------------------ 496 -- Restrictions -- 497 ------------------ 498 499 -- pragma Restrictions (RESTRICTION {, RESTRICTION}); 500 501 -- RESTRICTION ::= 502 -- restriction_IDENTIFIER 503 -- | restriction_parameter_IDENTIFIER => EXPRESSION 504 505 -- We process the case of No_Obsolescent_Features, since this has 506 -- a syntactic effect that we need to detect at parse time (the use 507 -- of replacement characters such as colon for pound sign). 508 509 when Pragma_Restrictions => 510 Process_Restrictions_Or_Restriction_Warnings; 511 512 -------------------------- 513 -- Restriction_Warnings -- 514 -------------------------- 515 516 -- pragma Restriction_Warnings (RESTRICTION {, RESTRICTION}); 517 518 -- RESTRICTION ::= 519 -- restriction_IDENTIFIER 520 -- | restriction_parameter_IDENTIFIER => EXPRESSION 521 522 -- See above comment for pragma Restrictions 523 524 when Pragma_Restriction_Warnings => 525 Process_Restrictions_Or_Restriction_Warnings; 526 527 ---------------------------------------------------------- 528 -- Source_File_Name and Source_File_Name_Project (GNAT) -- 529 ---------------------------------------------------------- 530 531 -- These two pragmas have the same syntax and semantics. 532 -- There are five forms of these pragmas: 533 534 -- pragma Source_File_Name[_Project] ( 535 -- [UNIT_NAME =>] unit_NAME, 536 -- BODY_FILE_NAME => STRING_LITERAL 537 -- [, [INDEX =>] INTEGER_LITERAL]); 538 539 -- pragma Source_File_Name[_Project] ( 540 -- [UNIT_NAME =>] unit_NAME, 541 -- SPEC_FILE_NAME => STRING_LITERAL 542 -- [, [INDEX =>] INTEGER_LITERAL]); 543 544 -- pragma Source_File_Name[_Project] ( 545 -- BODY_FILE_NAME => STRING_LITERAL 546 -- [, DOT_REPLACEMENT => STRING_LITERAL] 547 -- [, CASING => CASING_SPEC]); 548 549 -- pragma Source_File_Name[_Project] ( 550 -- SPEC_FILE_NAME => STRING_LITERAL 551 -- [, DOT_REPLACEMENT => STRING_LITERAL] 552 -- [, CASING => CASING_SPEC]); 553 554 -- pragma Source_File_Name[_Project] ( 555 -- SUBUNIT_FILE_NAME => STRING_LITERAL 556 -- [, DOT_REPLACEMENT => STRING_LITERAL] 557 -- [, CASING => CASING_SPEC]); 558 559 -- CASING_SPEC ::= Uppercase | Lowercase | Mixedcase 560 561 -- Pragma Source_File_Name_Project (SFNP) is equivalent to pragma 562 -- Source_File_Name (SFN), however their usage is exclusive: 563 -- SFN can only be used when no project file is used, while 564 -- SFNP can only be used when a project file is used. 565 566 -- The Project Manager produces a configuration pragmas file that 567 -- is communicated to the compiler with -gnatec switch. This file 568 -- contains only SFNP pragmas (at least two for the default naming 569 -- scheme. As this configuration pragmas file is always the first 570 -- processed by the compiler, it prevents the use of pragmas SFN in 571 -- other config files when a project file is in use. 572 573 -- Note: we process this during parsing, since we need to have the 574 -- source file names set well before the semantic analysis starts, 575 -- since we load the spec and with'ed packages before analysis. 576 577 when Pragma_Source_File_Name | Pragma_Source_File_Name_Project => 578 Source_File_Name : declare 579 Unam : Unit_Name_Type; 580 Expr1 : Node_Id; 581 Pat : String_Ptr; 582 Typ : Character; 583 Dot : String_Ptr; 584 Cas : Casing_Type; 585 Nast : Nat; 586 Expr : Node_Id; 587 Index : Nat; 588 589 function Get_Fname (Arg : Node_Id) return File_Name_Type; 590 -- Process file name from unit name form of pragma 591 592 function Get_String_Argument (Arg : Node_Id) return String_Ptr; 593 -- Process string literal value from argument 594 595 procedure Process_Casing (Arg : Node_Id); 596 -- Process Casing argument of pattern form of pragma 597 598 procedure Process_Dot_Replacement (Arg : Node_Id); 599 -- Process Dot_Replacement argument of pattern form of pragma 600 601 --------------- 602 -- Get_Fname -- 603 --------------- 604 605 function Get_Fname (Arg : Node_Id) return File_Name_Type is 606 begin 607 String_To_Name_Buffer (Strval (Expression (Arg))); 608 609 for J in 1 .. Name_Len loop 610 if Is_Directory_Separator (Name_Buffer (J)) then 611 Error_Msg 612 ("directory separator character not allowed", 613 Sloc (Expression (Arg)) + Source_Ptr (J)); 614 end if; 615 end loop; 616 617 return Name_Find; 618 end Get_Fname; 619 620 ------------------------- 621 -- Get_String_Argument -- 622 ------------------------- 623 624 function Get_String_Argument (Arg : Node_Id) return String_Ptr is 625 Str : String_Id; 626 627 begin 628 if Nkind (Expression (Arg)) /= N_String_Literal 629 and then 630 Nkind (Expression (Arg)) /= N_Operator_Symbol 631 then 632 Error_Msg_N 633 ("argument for pragma% must be string literal", Arg); 634 raise Error_Resync; 635 end if; 636 637 Str := Strval (Expression (Arg)); 638 639 -- Check string has no wide chars 640 641 for J in 1 .. String_Length (Str) loop 642 if Get_String_Char (Str, J) > 255 then 643 Error_Msg 644 ("wide character not allowed in pattern for pragma%", 645 Sloc (Expression (Arg2)) + Text_Ptr (J) - 1); 646 end if; 647 end loop; 648 649 -- Acquire string 650 651 String_To_Name_Buffer (Str); 652 return new String'(Name_Buffer (1 .. Name_Len)); 653 end Get_String_Argument; 654 655 -------------------- 656 -- Process_Casing -- 657 -------------------- 658 659 procedure Process_Casing (Arg : Node_Id) is 660 Expr : constant Node_Id := Expression (Arg); 661 662 begin 663 Check_Required_Identifier (Arg, Name_Casing); 664 665 if Nkind (Expr) = N_Identifier then 666 if Chars (Expr) = Name_Lowercase then 667 Cas := All_Lower_Case; 668 return; 669 elsif Chars (Expr) = Name_Uppercase then 670 Cas := All_Upper_Case; 671 return; 672 elsif Chars (Expr) = Name_Mixedcase then 673 Cas := Mixed_Case; 674 return; 675 end if; 676 end if; 677 678 Error_Msg_N 679 ("Casing argument for pragma% must be " & 680 "one of Mixedcase, Lowercase, Uppercase", 681 Arg); 682 end Process_Casing; 683 684 ----------------------------- 685 -- Process_Dot_Replacement -- 686 ----------------------------- 687 688 procedure Process_Dot_Replacement (Arg : Node_Id) is 689 begin 690 Check_Required_Identifier (Arg, Name_Dot_Replacement); 691 Dot := Get_String_Argument (Arg); 692 end Process_Dot_Replacement; 693 694 -- Start of processing for Source_File_Name and 695 -- Source_File_Name_Project pragmas. 696 697 begin 698 if Prag_Id = Pragma_Source_File_Name then 699 if Project_File_In_Use = In_Use then 700 Error_Msg 701 ("pragma Source_File_Name cannot be used " & 702 "with a project file", Pragma_Sloc); 703 704 else 705 Project_File_In_Use := Not_In_Use; 706 end if; 707 708 else 709 if Project_File_In_Use = Not_In_Use then 710 Error_Msg 711 ("pragma Source_File_Name_Project should only be used " & 712 "with a project file", Pragma_Sloc); 713 else 714 Project_File_In_Use := In_Use; 715 end if; 716 end if; 717 718 -- We permit from 1 to 3 arguments 719 720 if Arg_Count not in 1 .. 3 then 721 Check_Arg_Count (1); 722 end if; 723 724 Expr1 := Expression (Arg1); 725 726 -- If first argument is identifier or selected component, then 727 -- we have the specific file case of the Source_File_Name pragma, 728 -- and the first argument is a unit name. 729 730 if Nkind (Expr1) = N_Identifier 731 or else 732 (Nkind (Expr1) = N_Selected_Component 733 and then 734 Nkind (Selector_Name (Expr1)) = N_Identifier) 735 then 736 if Nkind (Expr1) = N_Identifier 737 and then Chars (Expr1) = Name_System 738 then 739 Error_Msg_N 740 ("pragma Source_File_Name may not be used for System", 741 Arg1); 742 return Error; 743 end if; 744 745 -- Process index argument if present 746 747 if Arg_Count = 3 then 748 Expr := Expression (Arg3); 749 750 if Nkind (Expr) /= N_Integer_Literal 751 or else not UI_Is_In_Int_Range (Intval (Expr)) 752 or else Intval (Expr) > 999 753 or else Intval (Expr) <= 0 754 then 755 Error_Msg 756 ("pragma% index must be integer literal" & 757 " in range 1 .. 999", Sloc (Expr)); 758 raise Error_Resync; 759 else 760 Index := UI_To_Int (Intval (Expr)); 761 end if; 762 763 -- No index argument present 764 765 else 766 Check_Arg_Count (2); 767 Index := 0; 768 end if; 769 770 Check_Optional_Identifier (Arg1, Name_Unit_Name); 771 Unam := Get_Unit_Name (Expr1); 772 773 Check_Arg_Is_String_Literal (Arg2); 774 775 if Chars (Arg2) = Name_Spec_File_Name then 776 Set_File_Name 777 (Get_Spec_Name (Unam), Get_Fname (Arg2), Index); 778 779 elsif Chars (Arg2) = Name_Body_File_Name then 780 Set_File_Name 781 (Unam, Get_Fname (Arg2), Index); 782 783 else 784 Error_Msg_N 785 ("pragma% argument has incorrect identifier", Arg2); 786 return Pragma_Node; 787 end if; 788 789 -- If the first argument is not an identifier, then we must have 790 -- the pattern form of the pragma, and the first argument must be 791 -- the pattern string with an appropriate name. 792 793 else 794 if Chars (Arg1) = Name_Spec_File_Name then 795 Typ := 's'; 796 797 elsif Chars (Arg1) = Name_Body_File_Name then 798 Typ := 'b'; 799 800 elsif Chars (Arg1) = Name_Subunit_File_Name then 801 Typ := 'u'; 802 803 elsif Chars (Arg1) = Name_Unit_Name then 804 Error_Msg_N 805 ("Unit_Name parameter for pragma% must be an identifier", 806 Arg1); 807 raise Error_Resync; 808 809 else 810 Error_Msg_N 811 ("pragma% argument has incorrect identifier", Arg1); 812 raise Error_Resync; 813 end if; 814 815 Pat := Get_String_Argument (Arg1); 816 817 -- Check pattern has exactly one asterisk 818 819 Nast := 0; 820 for J in Pat'Range loop 821 if Pat (J) = '*' then 822 Nast := Nast + 1; 823 end if; 824 end loop; 825 826 if Nast /= 1 then 827 Error_Msg_N 828 ("file name pattern must have exactly one * character", 829 Arg1); 830 return Pragma_Node; 831 end if; 832 833 -- Set defaults for Casing and Dot_Separator parameters 834 835 Cas := All_Lower_Case; 836 Dot := new String'("."); 837 838 -- Process second and third arguments if present 839 840 if Arg_Count > 1 then 841 if Chars (Arg2) = Name_Casing then 842 Process_Casing (Arg2); 843 844 if Arg_Count = 3 then 845 Process_Dot_Replacement (Arg3); 846 end if; 847 848 else 849 Process_Dot_Replacement (Arg2); 850 851 if Arg_Count = 3 then 852 Process_Casing (Arg3); 853 end if; 854 end if; 855 end if; 856 857 Set_File_Name_Pattern (Pat, Typ, Dot, Cas); 858 end if; 859 end Source_File_Name; 860 861 ----------------------------- 862 -- Source_Reference (GNAT) -- 863 ----------------------------- 864 865 -- pragma Source_Reference 866 -- (INTEGER_LITERAL [, STRING_LITERAL] ); 867 868 -- Processing for this pragma must be done at parse time, since error 869 -- messages needing the proper line numbers can be generated in parse 870 -- only mode with semantic checking turned off, and indeed we usually 871 -- turn off semantic checking anyway if any parse errors are found. 872 873 when Pragma_Source_Reference => Source_Reference : declare 874 Fname : File_Name_Type; 875 876 begin 877 if Arg_Count /= 1 then 878 Check_Arg_Count (2); 879 Check_No_Identifier (Arg2); 880 end if; 881 882 -- Check that this is first line of file. We skip this test if 883 -- we are in syntax check only mode, since we may be dealing with 884 -- multiple compilation units. 885 886 if Get_Physical_Line_Number (Pragma_Sloc) /= 1 887 and then Num_SRef_Pragmas (Current_Source_File) = 0 888 and then Operating_Mode /= Check_Syntax 889 then 890 Error_Msg -- CODEFIX 891 ("first % pragma must be first line of file", Pragma_Sloc); 892 raise Error_Resync; 893 end if; 894 895 Check_No_Identifier (Arg1); 896 897 if Arg_Count = 1 then 898 if Num_SRef_Pragmas (Current_Source_File) = 0 then 899 Error_Msg 900 ("file name required for first % pragma in file", 901 Pragma_Sloc); 902 raise Error_Resync; 903 else 904 Fname := No_File; 905 end if; 906 907 -- File name present 908 909 else 910 Check_Arg_Is_String_Literal (Arg2); 911 String_To_Name_Buffer (Strval (Expression (Arg2))); 912 Fname := Name_Find; 913 914 if Num_SRef_Pragmas (Current_Source_File) > 0 then 915 if Fname /= Full_Ref_Name (Current_Source_File) then 916 Error_Msg 917 ("file name must be same in all % pragmas", Pragma_Sloc); 918 raise Error_Resync; 919 end if; 920 end if; 921 end if; 922 923 if Nkind (Expression (Arg1)) /= N_Integer_Literal then 924 Error_Msg 925 ("argument for pragma% must be integer literal", 926 Sloc (Expression (Arg1))); 927 raise Error_Resync; 928 929 -- OK, this source reference pragma is effective, however, we 930 -- ignore it if it is not in the first unit in the multiple unit 931 -- case. This is because the only purpose in this case is to 932 -- provide source pragmas for subsequent use by gnatchop. 933 934 else 935 if Num_Library_Units = 1 then 936 Register_Source_Ref_Pragma 937 (Fname, 938 Strip_Directory (Fname), 939 UI_To_Int (Intval (Expression (Arg1))), 940 Get_Physical_Line_Number (Pragma_Sloc) + 1); 941 end if; 942 end if; 943 end Source_Reference; 944 945 ------------------------- 946 -- Style_Checks (GNAT) -- 947 ------------------------- 948 949 -- pragma Style_Checks (On | Off | ALL_CHECKS | STRING_LITERAL); 950 951 -- This is processed by the parser since some of the style 952 -- checks take place during source scanning and parsing. 953 954 when Pragma_Style_Checks => Style_Checks : declare 955 A : Node_Id; 956 S : String_Id; 957 C : Char_Code; 958 OK : Boolean := True; 959 960 begin 961 -- Two argument case is only for semantics 962 963 if Arg_Count = 2 then 964 null; 965 966 else 967 Check_Arg_Count (1); 968 Check_No_Identifier (Arg1); 969 A := Expression (Arg1); 970 971 if Nkind (A) = N_String_Literal then 972 S := Strval (A); 973 974 declare 975 Slen : constant Natural := Natural (String_Length (S)); 976 Options : String (1 .. Slen); 977 J : Natural; 978 Ptr : Natural; 979 980 begin 981 J := 1; 982 loop 983 C := Get_String_Char (S, Int (J)); 984 985 if not In_Character_Range (C) then 986 OK := False; 987 Ptr := J; 988 exit; 989 990 else 991 Options (J) := Get_Character (C); 992 end if; 993 994 if J = Slen then 995 if not Ignore_Style_Checks_Pragmas then 996 Set_Style_Check_Options (Options, OK, Ptr); 997 end if; 998 999 exit; 1000 1001 else 1002 J := J + 1; 1003 end if; 1004 end loop; 1005 1006 if not OK then 1007 Error_Msg 1008 (Style_Msg_Buf (1 .. Style_Msg_Len), 1009 Sloc (Expression (Arg1)) + Source_Ptr (Ptr)); 1010 raise Error_Resync; 1011 end if; 1012 end; 1013 1014 elsif Nkind (A) /= N_Identifier then 1015 OK := False; 1016 1017 elsif Chars (A) = Name_All_Checks then 1018 if not Ignore_Style_Checks_Pragmas then 1019 if GNAT_Mode then 1020 Stylesw.Set_GNAT_Style_Check_Options; 1021 else 1022 Stylesw.Set_Default_Style_Check_Options; 1023 end if; 1024 end if; 1025 1026 elsif Chars (A) = Name_On then 1027 if not Ignore_Style_Checks_Pragmas then 1028 Style_Check := True; 1029 end if; 1030 1031 elsif Chars (A) = Name_Off then 1032 if not Ignore_Style_Checks_Pragmas then 1033 Style_Check := False; 1034 end if; 1035 1036 else 1037 OK := False; 1038 end if; 1039 1040 if not OK then 1041 Error_Msg ("incorrect argument for pragma%", Sloc (A)); 1042 raise Error_Resync; 1043 end if; 1044 end if; 1045 end Style_Checks; 1046 1047 ------------------------- 1048 -- Suppress_All (GNAT) -- 1049 ------------------------- 1050 1051 -- pragma Suppress_All 1052 1053 -- This is a rather odd pragma, because other compilers allow it in 1054 -- strange places. DEC allows it at the end of units, and Rational 1055 -- allows it as a program unit pragma, when it would be more natural 1056 -- if it were a configuration pragma. 1057 1058 -- Since the reason we provide this pragma is for compatibility with 1059 -- these other compilers, we want to accommodate these strange placement 1060 -- rules, and the easiest thing is simply to allow it anywhere in a 1061 -- unit. If this pragma appears anywhere within a unit, then the effect 1062 -- is as though a pragma Suppress (All_Checks) had appeared as the first 1063 -- line of the current file, i.e. as the first configuration pragma in 1064 -- the current unit. 1065 1066 -- To get this effect, we set the flag Has_Pragma_Suppress_All in the 1067 -- compilation unit node for the current source file then in the last 1068 -- stage of parsing a file, if this flag is set, we materialize the 1069 -- Suppress (All_Checks) pragma, marked as not coming from Source. 1070 1071 when Pragma_Suppress_All => 1072 Set_Has_Pragma_Suppress_All (Cunit (Current_Source_Unit)); 1073 1074 --------------------- 1075 -- Warnings (GNAT) -- 1076 --------------------- 1077 1078 -- pragma Warnings ([TOOL_NAME,] DETAILS [, REASON]); 1079 1080 -- DETAILS ::= On | Off 1081 -- DETAILS ::= On | Off, local_NAME 1082 -- DETAILS ::= static_string_EXPRESSION 1083 -- DETAILS ::= On | Off, static_string_EXPRESSION 1084 1085 -- TOOL_NAME ::= GNAT | GNATProve 1086 1087 -- REASON ::= Reason => STRING_LITERAL {& STRING_LITERAL} 1088 1089 -- Note: If the first argument matches an allowed tool name, it is 1090 -- always considered to be a tool name, even if there is a string 1091 -- variable of that name. 1092 1093 -- The one argument ON/OFF case is processed by the parser, since it may 1094 -- control parser warnings as well as semantic warnings, and in any case 1095 -- we want to be absolutely sure that the range in the warnings table is 1096 -- set well before any semantic analysis is performed. Note that we 1097 -- ignore this pragma if debug flag -gnatd.i is set. 1098 1099 -- Also note that the "one argument" case may have two or three 1100 -- arguments if the first one is a tool name, and/or the last one is a 1101 -- reason argument. 1102 1103 when Pragma_Warnings => Warnings : declare 1104 function First_Arg_Is_Matching_Tool_Name return Boolean; 1105 -- Returns True if the first argument is a tool name matching the 1106 -- current tool being run. 1107 1108 function Last_Arg return Node_Id; 1109 -- Returns the last argument 1110 1111 function Last_Arg_Is_Reason return Boolean; 1112 -- Returns True if the last argument is a reason argument 1113 1114 function Get_Reason return String_Id; 1115 -- Analyzes Reason argument and returns corresponding String_Id 1116 -- value, or null if there is no Reason argument, or if the 1117 -- argument is not of the required form. 1118 1119 ------------------------------------- 1120 -- First_Arg_Is_Matching_Tool_Name -- 1121 ------------------------------------- 1122 1123 function First_Arg_Is_Matching_Tool_Name return Boolean is 1124 begin 1125 return Nkind (Arg1) = N_Identifier 1126 1127 -- Return True if the tool name is GNAT, and we're not in 1128 -- GNATprove or CodePeer or ASIS mode... 1129 1130 and then ((Chars (Arg1) = Name_Gnat 1131 and then not 1132 (CodePeer_Mode or GNATprove_Mode or ASIS_Mode)) 1133 1134 -- or if the tool name is GNATprove, and we're in GNATprove 1135 -- mode. 1136 1137 or else 1138 (Chars (Arg1) = Name_Gnatprove 1139 and then GNATprove_Mode)); 1140 end First_Arg_Is_Matching_Tool_Name; 1141 1142 ---------------- 1143 -- Get_Reason -- 1144 ---------------- 1145 1146 function Get_Reason return String_Id is 1147 Arg : constant Node_Id := Last_Arg; 1148 begin 1149 if Last_Arg_Is_Reason then 1150 Start_String; 1151 Get_Reason_String (Expression (Arg)); 1152 return End_String; 1153 else 1154 return Null_String_Id; 1155 end if; 1156 end Get_Reason; 1157 1158 -------------- 1159 -- Last_Arg -- 1160 -------------- 1161 1162 function Last_Arg return Node_Id is 1163 Last_Arg : Node_Id; 1164 1165 begin 1166 if Arg_Count = 1 then 1167 Last_Arg := Arg1; 1168 elsif Arg_Count = 2 then 1169 Last_Arg := Arg2; 1170 elsif Arg_Count = 3 then 1171 Last_Arg := Arg3; 1172 elsif Arg_Count = 4 then 1173 Last_Arg := Next (Arg3); 1174 1175 -- Illegal case, error issued in semantic analysis 1176 1177 else 1178 Last_Arg := Empty; 1179 end if; 1180 1181 return Last_Arg; 1182 end Last_Arg; 1183 1184 ------------------------ 1185 -- Last_Arg_Is_Reason -- 1186 ------------------------ 1187 1188 function Last_Arg_Is_Reason return Boolean is 1189 Arg : constant Node_Id := Last_Arg; 1190 begin 1191 return Nkind (Arg) in N_Has_Chars 1192 and then Chars (Arg) = Name_Reason; 1193 end Last_Arg_Is_Reason; 1194 1195 The_Arg : Node_Id; -- On/Off argument 1196 Argx : Node_Id; 1197 1198 -- Start of processing for Warnings 1199 1200 begin 1201 if not Debug_Flag_Dot_I 1202 and then (Arg_Count = 1 1203 or else (Arg_Count = 2 1204 and then (First_Arg_Is_Matching_Tool_Name 1205 or else 1206 Last_Arg_Is_Reason)) 1207 or else (Arg_Count = 3 1208 and then First_Arg_Is_Matching_Tool_Name 1209 and then Last_Arg_Is_Reason)) 1210 then 1211 if First_Arg_Is_Matching_Tool_Name then 1212 The_Arg := Arg2; 1213 else 1214 The_Arg := Arg1; 1215 end if; 1216 1217 Check_No_Identifier (The_Arg); 1218 Argx := Expression (The_Arg); 1219 1220 if Nkind (Argx) = N_Identifier then 1221 if Chars (Argx) = Name_On then 1222 Set_Warnings_Mode_On (Pragma_Sloc); 1223 elsif Chars (Argx) = Name_Off then 1224 Set_Warnings_Mode_Off (Pragma_Sloc, Get_Reason); 1225 end if; 1226 end if; 1227 end if; 1228 end Warnings; 1229 1230 ----------------------------- 1231 -- Wide_Character_Encoding -- 1232 ----------------------------- 1233 1234 -- pragma Wide_Character_Encoding (IDENTIFIER | CHARACTER_LITERAL); 1235 1236 -- This is processed by the parser, since the scanner is affected 1237 1238 when Pragma_Wide_Character_Encoding => Wide_Character_Encoding : declare 1239 A : Node_Id; 1240 1241 begin 1242 Check_Arg_Count (1); 1243 Check_No_Identifier (Arg1); 1244 A := Expression (Arg1); 1245 1246 if Nkind (A) = N_Identifier then 1247 Get_Name_String (Chars (A)); 1248 Wide_Character_Encoding_Method := 1249 Get_WC_Encoding_Method (Name_Buffer (1 .. Name_Len)); 1250 1251 elsif Nkind (A) = N_Character_Literal then 1252 declare 1253 R : constant Char_Code := 1254 Char_Code (UI_To_Int (Char_Literal_Value (A))); 1255 begin 1256 if In_Character_Range (R) then 1257 Wide_Character_Encoding_Method := 1258 Get_WC_Encoding_Method (Get_Character (R)); 1259 else 1260 raise Constraint_Error; 1261 end if; 1262 end; 1263 1264 else 1265 raise Constraint_Error; 1266 end if; 1267 1268 Upper_Half_Encoding := 1269 Wide_Character_Encoding_Method in 1270 WC_Upper_Half_Encoding_Method; 1271 1272 exception 1273 when Constraint_Error => 1274 Error_Msg_N ("invalid argument for pragma%", Arg1); 1275 end Wide_Character_Encoding; 1276 1277 ----------------------- 1278 -- All Other Pragmas -- 1279 ----------------------- 1280 1281 -- For all other pragmas, checking and processing is handled 1282 -- entirely in Sem_Prag, and no further checking is done by Par. 1283 1284 when Pragma_Abort_Defer | 1285 Pragma_Abstract_State | 1286 Pragma_Async_Readers | 1287 Pragma_Async_Writers | 1288 Pragma_Assertion_Policy | 1289 Pragma_Assume | 1290 Pragma_Assume_No_Invalid_Values | 1291 Pragma_All_Calls_Remote | 1292 Pragma_Allow_Integer_Address | 1293 Pragma_Annotate | 1294 Pragma_Assert | 1295 Pragma_Assert_And_Cut | 1296 Pragma_Asynchronous | 1297 Pragma_Atomic | 1298 Pragma_Atomic_Components | 1299 Pragma_Attach_Handler | 1300 Pragma_Attribute_Definition | 1301 Pragma_Check | 1302 Pragma_Check_Float_Overflow | 1303 Pragma_Check_Name | 1304 Pragma_Check_Policy | 1305 Pragma_Compile_Time_Error | 1306 Pragma_Compile_Time_Warning | 1307 Pragma_Constant_After_Elaboration | 1308 Pragma_Contract_Cases | 1309 Pragma_Convention_Identifier | 1310 Pragma_CPP_Class | 1311 Pragma_CPP_Constructor | 1312 Pragma_CPP_Virtual | 1313 Pragma_CPP_Vtable | 1314 Pragma_CPU | 1315 Pragma_C_Pass_By_Copy | 1316 Pragma_Comment | 1317 Pragma_Common_Object | 1318 Pragma_Complete_Representation | 1319 Pragma_Complex_Representation | 1320 Pragma_Component_Alignment | 1321 Pragma_Controlled | 1322 Pragma_Convention | 1323 Pragma_Debug_Policy | 1324 Pragma_Depends | 1325 Pragma_Detect_Blocking | 1326 Pragma_Default_Initial_Condition | 1327 Pragma_Default_Scalar_Storage_Order | 1328 Pragma_Default_Storage_Pool | 1329 Pragma_Disable_Atomic_Synchronization | 1330 Pragma_Discard_Names | 1331 Pragma_Dispatching_Domain | 1332 Pragma_Effective_Reads | 1333 Pragma_Effective_Writes | 1334 Pragma_Eliminate | 1335 Pragma_Elaborate | 1336 Pragma_Elaborate_All | 1337 Pragma_Elaborate_Body | 1338 Pragma_Elaboration_Checks | 1339 Pragma_Enable_Atomic_Synchronization | 1340 Pragma_Export | 1341 Pragma_Export_Function | 1342 Pragma_Export_Object | 1343 Pragma_Export_Procedure | 1344 Pragma_Export_Value | 1345 Pragma_Export_Valued_Procedure | 1346 Pragma_Extend_System | 1347 Pragma_Extensions_Visible | 1348 Pragma_External | 1349 Pragma_External_Name_Casing | 1350 Pragma_Favor_Top_Level | 1351 Pragma_Fast_Math | 1352 Pragma_Finalize_Storage_Only | 1353 Pragma_Ghost | 1354 Pragma_Global | 1355 Pragma_Ident | 1356 Pragma_Implementation_Defined | 1357 Pragma_Implemented | 1358 Pragma_Implicit_Packing | 1359 Pragma_Import | 1360 Pragma_Import_Function | 1361 Pragma_Import_Object | 1362 Pragma_Import_Procedure | 1363 Pragma_Import_Valued_Procedure | 1364 Pragma_Independent | 1365 Pragma_Independent_Components | 1366 Pragma_Initial_Condition | 1367 Pragma_Initialize_Scalars | 1368 Pragma_Initializes | 1369 Pragma_Inline | 1370 Pragma_Inline_Always | 1371 Pragma_Inline_Generic | 1372 Pragma_Inspection_Point | 1373 Pragma_Interface | 1374 Pragma_Interface_Name | 1375 Pragma_Interrupt_Handler | 1376 Pragma_Interrupt_State | 1377 Pragma_Interrupt_Priority | 1378 Pragma_Invariant | 1379 Pragma_Keep_Names | 1380 Pragma_License | 1381 Pragma_Link_With | 1382 Pragma_Linker_Alias | 1383 Pragma_Linker_Constructor | 1384 Pragma_Linker_Destructor | 1385 Pragma_Linker_Options | 1386 Pragma_Linker_Section | 1387 Pragma_Lock_Free | 1388 Pragma_Locking_Policy | 1389 Pragma_Loop_Invariant | 1390 Pragma_Loop_Optimize | 1391 Pragma_Loop_Variant | 1392 Pragma_Machine_Attribute | 1393 Pragma_Main | 1394 Pragma_Main_Storage | 1395 Pragma_Memory_Size | 1396 Pragma_No_Body | 1397 Pragma_No_Elaboration_Code_All | 1398 Pragma_No_Inline | 1399 Pragma_No_Return | 1400 Pragma_No_Run_Time | 1401 Pragma_No_Strict_Aliasing | 1402 Pragma_No_Tagged_Streams | 1403 Pragma_Normalize_Scalars | 1404 Pragma_Obsolescent | 1405 Pragma_Ordered | 1406 Pragma_Optimize | 1407 Pragma_Optimize_Alignment | 1408 Pragma_Overflow_Mode | 1409 Pragma_Overriding_Renamings | 1410 Pragma_Pack | 1411 Pragma_Part_Of | 1412 Pragma_Partition_Elaboration_Policy | 1413 Pragma_Passive | 1414 Pragma_Preelaborable_Initialization | 1415 Pragma_Polling | 1416 Pragma_Prefix_Exception_Messages | 1417 Pragma_Persistent_BSS | 1418 Pragma_Post | 1419 Pragma_Postcondition | 1420 Pragma_Post_Class | 1421 Pragma_Pre | 1422 Pragma_Precondition | 1423 Pragma_Predicate | 1424 Pragma_Predicate_Failure | 1425 Pragma_Preelaborate | 1426 Pragma_Pre_Class | 1427 Pragma_Priority | 1428 Pragma_Priority_Specific_Dispatching | 1429 Pragma_Profile | 1430 Pragma_Profile_Warnings | 1431 Pragma_Propagate_Exceptions | 1432 Pragma_Provide_Shift_Operators | 1433 Pragma_Psect_Object | 1434 Pragma_Pure | 1435 Pragma_Pure_Function | 1436 Pragma_Queuing_Policy | 1437 Pragma_Refined_Depends | 1438 Pragma_Refined_Global | 1439 Pragma_Refined_Post | 1440 Pragma_Refined_State | 1441 Pragma_Relative_Deadline | 1442 Pragma_Remote_Access_Type | 1443 Pragma_Remote_Call_Interface | 1444 Pragma_Remote_Types | 1445 Pragma_Restricted_Run_Time | 1446 Pragma_Rational | 1447 Pragma_Ravenscar | 1448 Pragma_Reviewable | 1449 Pragma_Share_Generic | 1450 Pragma_Shared | 1451 Pragma_Shared_Passive | 1452 Pragma_Short_Circuit_And_Or | 1453 Pragma_Short_Descriptors | 1454 Pragma_Simple_Storage_Pool_Type | 1455 Pragma_SPARK_Mode | 1456 Pragma_Storage_Size | 1457 Pragma_Storage_Unit | 1458 Pragma_Static_Elaboration_Desired | 1459 Pragma_Stream_Convert | 1460 Pragma_Subtitle | 1461 Pragma_Suppress | 1462 Pragma_Suppress_Debug_Info | 1463 Pragma_Suppress_Exception_Locations | 1464 Pragma_Suppress_Initialization | 1465 Pragma_System_Name | 1466 Pragma_Task_Dispatching_Policy | 1467 Pragma_Task_Info | 1468 Pragma_Task_Name | 1469 Pragma_Task_Storage | 1470 Pragma_Test_Case | 1471 Pragma_Thread_Local_Storage | 1472 Pragma_Time_Slice | 1473 Pragma_Title | 1474 Pragma_Type_Invariant | 1475 Pragma_Type_Invariant_Class | 1476 Pragma_Unchecked_Union | 1477 Pragma_Unevaluated_Use_Of_Old | 1478 Pragma_Unimplemented_Unit | 1479 Pragma_Universal_Aliasing | 1480 Pragma_Universal_Data | 1481 Pragma_Unmodified | 1482 Pragma_Unreferenced | 1483 Pragma_Unreferenced_Objects | 1484 Pragma_Unreserve_All_Interrupts | 1485 Pragma_Unsuppress | 1486 Pragma_Use_VADS_Size | 1487 Pragma_Volatile | 1488 Pragma_Volatile_Components | 1489 Pragma_Volatile_Full_Access | 1490 Pragma_Volatile_Function | 1491 Pragma_Warning_As_Error | 1492 Pragma_Weak_External | 1493 Pragma_Validity_Checks => 1494 null; 1495 1496 -------------------- 1497 -- Unknown_Pragma -- 1498 -------------------- 1499 1500 -- Should be impossible, since we excluded this case earlier on 1501 1502 when Unknown_Pragma => 1503 raise Program_Error; 1504 1505 end case; 1506 1507 return Pragma_Node; 1508 1509 -------------------- 1510 -- Error Handling -- 1511 -------------------- 1512 1513exception 1514 when Error_Resync => 1515 return Error; 1516 1517end Prag; 1518