gcc/ada/sem_ch2.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                              S E M _ C H 2                               --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --                            $Revision: 1.8 $                              --
  10 --                                                                          --
  11 --          Copyright (C) 1992-1999, Free Software Foundation, Inc.         --
  12 --                                                                          --
  13 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  14 -- terms of the  GNU General Public License as published  by the Free Soft- --
  15 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  16 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  17 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  18 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  19 -- for  more details.  You should have  received  a copy of the GNU General --
  20 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  21 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  22 -- MA 02111-1307, USA.                                                      --
  23 --                                                                          --
  24 -- GNAT was originally developed  by the GNAT team at  New York University. --
  25 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
  26 --                                                                          --
  27 ------------------------------------------------------------------------------
  28
  29 with Atree;    use Atree;
  30 with Opt;      use Opt;
  31 with Restrict; use Restrict;
  32 with Sem_Ch8;  use Sem_Ch8;
  33 with Sinfo;    use Sinfo;
  34 with Stand;    use Stand;
  35
  36 package body Sem_Ch2 is
  37
  38    -------------------------------
  39    -- Analyze_Character_Literal --
  40    -------------------------------
  41
  42    procedure Analyze_Character_Literal (N : Node_Id) is
  43    begin
  44
  45       --  The type is eventually inherited from the context. If expansion
  46       --  has already established the proper type, do not modify it.
  47
  48       if No (Etype (N)) then
  49          Set_Etype (N, Any_Character);
  50       end if;
  51
  52       Set_Is_Static_Expression (N);
  53
  54       if Comes_From_Source (N)
  55         and then not In_Character_Range (Char_Literal_Value (N))
  56       then
  57          Check_Restriction (No_Wide_Characters, N);
  58       end if;
  59    end Analyze_Character_Literal;
  60
  61    ------------------------
  62    -- Analyze_Identifier --
  63    ------------------------
  64
  65    procedure Analyze_Identifier (N : Node_Id) is
  66    begin
  67       Find_Direct_Name (N);
  68    end Analyze_Identifier;
  69
  70    -----------------------------
  71    -- Analyze_Integer_Literal --
  72    -----------------------------
  73
  74    procedure Analyze_Integer_Literal (N : Node_Id) is
  75    begin
  76       Set_Etype (N, Universal_Integer);
  77       Set_Is_Static_Expression (N);
  78    end Analyze_Integer_Literal;
  79
  80    --------------------------
  81    -- Analyze_Real_Literal --
  82    --------------------------
  83
  84    procedure Analyze_Real_Literal (N : Node_Id) is
  85    begin
  86       Set_Etype (N, Universal_Real);
  87       Set_Is_Static_Expression (N);
  88    end Analyze_Real_Literal;
  89
  90    ----------------------------
  91    -- Analyze_String_Literal --
  92    ----------------------------
  93
  94    procedure Analyze_String_Literal (N : Node_Id) is
  95    begin
  96
  97       --  The type is eventually inherited from the context. If expansion
  98       --  has already established the proper type, do not modify it.
  99
 100       if No (Etype (N)) then
 101          Set_Etype (N, Any_String);
 102       end if;
 103
 104       --  String literals are static in Ada 95. Note that if the subtype
 105       --  turns out to be non-static, then the Is_Static_Expression flag
 106       --  will be reset in Eval_String_Literal.
 107
 108       if Ada_95 then
 109          Set_Is_Static_Expression (N);
 110       end if;
 111
 112       if Comes_From_Source (N) and then Has_Wide_Character (N) then
 113          Check_Restriction (No_Wide_Characters, N);
 114       end if;
 115    end Analyze_String_Literal;
 116
 117 end Sem_Ch2;