gcc/ada/exp_prag.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             E X P _ P R A G                              --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2024, 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 --  Expand routines for pragmas
  27
  28 with Types; use Types;
  29
  30 package Exp_Prag is
  31
  32    procedure Expand_N_Pragma (N : Node_Id);
  33
  34    procedure Expand_Pragma_Always_Terminates (Prag : Node_Id);
  35    --  This routine only exists for consistency with other pragmas, since
  36    --  Always_Terminates has no meaningful expansion.
  37
  38    procedure Expand_Pragma_Contract_Cases
  39      (CCs     : Node_Id;
  40       Subp_Id : Entity_Id;
  41       Decls   : List_Id;
  42       Stmts   : in out List_Id);
  43    --  Given pragma Contract_Cases CCs, create the circuitry needed to evaluate
  44    --  case guards and trigger consequence expressions. Subp_Id is the related
  45    --  subprogram for which the pragma applies. Decls are the declarations of
  46    --  Subp_Id's body. All generated code is added to list Stmts. If Stmts is
  47    --  No_List on entry, a new list is created.
  48
  49    procedure Expand_Pragma_Exceptional_Cases (Prag : Node_Id);
  50    --  Given pragma Exceptional_Cases Prag, create the circuitry needed to
  51    --  catch exceptions and evaluate consequence expressions.
  52
  53    procedure Expand_Pragma_Initial_Condition
  54      (Pack_Id : Entity_Id;
  55       N       : Node_Id);
  56    --  Verify the run-time semantics of pragma Initial_Condition when it
  57    --  applies to package Pack_Id. N denotes the related package spec or
  58    --  body.
  59
  60    procedure Expand_Pragma_Subprogram_Variant
  61      (Prag       : Node_Id;
  62       Subp_Id    : Entity_Id;
  63       Body_Decls : List_Id);
  64    --  Given pragma Subprogram_Variant Prag, create the circuitry needed
  65    --  to evaluate variant expressions at the subprogram entry and at the
  66    --  recursive call. Subp_Id is the related subprogram for which the pragma
  67    --  applies and Body_Decls are its body declarations. On exit, the argument
  68    --  of Prag is replaced with a reference to procedure with checks for the
  69    --  variant expressions.
  70
  71 end Exp_Prag;