gcc/ada/exp_ch2.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                              E X P _ C H 2                               --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2019, 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 chapter 2 constructs
  27
  28 with Types; use Types;
  29 package Exp_Ch2 is
  30
  31    procedure Expand_N_Expanded_Name  (N : Node_Id);
  32    procedure Expand_N_Identifier     (N : Node_Id);
  33    procedure Expand_N_Real_Literal   (N : Node_Id);
  34
  35    function Param_Entity (N : Node_Id) return Entity_Id;
  36    --  Given an expression N, determines if the expression is a reference
  37    --  to a formal (of a subprogram or entry), and if so returns the Id
  38    --  of the corresponding formal entity, otherwise returns Empty. The
  39    --  reason that this is in Exp_Ch2 is that it has to deal with the case
  40    --  where the reference is to an entry formal, and has been expanded
  41    --  already. Since Exp_Ch2 is in charge of the expansion, it is best
  42    --  suited to knowing how to detect this case. Also handles the case
  43    --  of references to renamings of formals.
  44
  45 end Exp_Ch2;