1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT COMPILER COMPONENTS                         --
4--                                                                          --
5--                              S E M _ C H 2                               --
6--                                                                          --
7--                                 B o d y                                  --
8--                                                                          --
9--          Copyright (C) 1992-2012, 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
26with Atree;    use Atree;
27with Namet;    use Namet;
28with Opt;      use Opt;
29with Restrict; use Restrict;
30with Rident;   use Rident;
31with Sem_Ch8;  use Sem_Ch8;
32with Sem_Dim;  use Sem_Dim;
33with Sinfo;    use Sinfo;
34with Stand;    use Stand;
35with Uintp;    use Uintp;
36
37package body Sem_Ch2 is
38
39   -------------------------------
40   -- Analyze_Character_Literal --
41   -------------------------------
42
43   procedure Analyze_Character_Literal (N : Node_Id) is
44   begin
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 (UI_To_CC (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      --  Ignore call if prior errors, and identifier has no name, since
68      --  this is the result of some kind of previous error generating a
69      --  junk identifier.
70
71      if Chars (N) in Error_Name_Or_No_Name
72        and then Total_Errors_Detected /= 0
73      then
74         return;
75      else
76         Find_Direct_Name (N);
77      end if;
78
79      Analyze_Dimension (N);
80   end Analyze_Identifier;
81
82   -----------------------------
83   -- Analyze_Integer_Literal --
84   -----------------------------
85
86   procedure Analyze_Integer_Literal (N : Node_Id) is
87   begin
88      Set_Etype (N, Universal_Integer);
89      Set_Is_Static_Expression (N);
90   end Analyze_Integer_Literal;
91
92   --------------------------
93   -- Analyze_Real_Literal --
94   --------------------------
95
96   procedure Analyze_Real_Literal (N : Node_Id) is
97   begin
98      Set_Etype (N, Universal_Real);
99      Set_Is_Static_Expression (N);
100   end Analyze_Real_Literal;
101
102   ----------------------------
103   -- Analyze_String_Literal --
104   ----------------------------
105
106   procedure Analyze_String_Literal (N : Node_Id) is
107   begin
108      --  The type is eventually inherited from the context. If expansion
109      --  has already established the proper type, do not modify it.
110
111      if No (Etype (N)) then
112         Set_Etype (N, Any_String);
113      end if;
114
115      --  String literals are static in Ada 95. Note that if the subtype
116      --  turns out to be non-static, then the Is_Static_Expression flag
117      --  will be reset in Eval_String_Literal.
118
119      if Ada_Version >= Ada_95 then
120         Set_Is_Static_Expression (N);
121      end if;
122
123      if Comes_From_Source (N) and then Has_Wide_Character (N) then
124         Check_Restriction (No_Wide_Characters, N);
125      end if;
126   end Analyze_String_Literal;
127
128end Sem_Ch2;
129