1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT COMPILER COMPONENTS                         --
4--                                                                          --
5--                              I T Y P E S                                 --
6--                                                                          --
7--                                 B o d y                                  --
8--                                                                          --
9--          Copyright (C) 1992-2021, 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 Einfo.Utils;    use Einfo.Utils;
27with Sem;            use Sem;
28with Sinfo;          use Sinfo;
29with Sinfo.Nodes;    use Sinfo.Nodes;
30with Stand;          use Stand;
31with Targparm;       use Targparm;
32
33package body Itypes is
34
35   ------------------
36   -- Create_Itype --
37   ------------------
38
39   function Create_Itype
40     (Ekind        : Entity_Kind;
41      Related_Nod  : Node_Id;
42      Related_Id   : Entity_Id := Empty;
43      Suffix       : Character := ' ';
44      Suffix_Index : Int       := 0;
45      Scope_Id     : Entity_Id := Current_Scope) return Entity_Id
46   is
47      Typ : Entity_Id;
48
49   begin
50      --  Should comment setting of Public_Status here ???
51
52      if Related_Id = Empty then
53         Typ := New_Internal_Entity (Ekind, Scope_Id, Sloc (Related_Nod), 'T');
54         Set_Public_Status (Typ);
55
56      else
57         Typ :=
58           New_External_Entity
59             (Ekind, Scope_Id, Sloc (Related_Nod), Related_Id, Suffix,
60              Suffix_Index, 'T');
61      end if;
62
63      --  Make sure Esize (Typ) was properly initialized, it should be since
64      --  New_Internal_Entity/New_External_Entity call Reinit_Size_Align.
65
66      pragma Assert (not Known_Esize (Typ));
67
68      Set_Etype (Typ, Any_Type);
69      Set_Is_Itype (Typ);
70      Set_Associated_Node_For_Itype (Typ, Related_Nod);
71
72      if In_Deleted_Code then
73         Set_Is_Frozen (Typ);
74      end if;
75
76      if Ekind in Access_Subprogram_Kind then
77         Set_Can_Use_Internal_Rep (Typ, not Always_Compatible_Rep_On_Target);
78      end if;
79
80      return Typ;
81   end Create_Itype;
82
83   ---------------------------------
84   -- Create_Null_Excluding_Itype --
85   ---------------------------------
86
87   function Create_Null_Excluding_Itype
88      (T           : Entity_Id;
89       Related_Nod : Node_Id;
90       Scope_Id    : Entity_Id := Current_Scope) return Entity_Id
91   is
92      I_Typ        : Entity_Id;
93
94   begin
95      pragma Assert (Is_Access_Type (T));
96
97      I_Typ := Create_Itype (Ekind       => E_Access_Subtype,
98                             Related_Nod => Related_Nod,
99                             Scope_Id    => Scope_Id);
100
101      Set_Directly_Designated_Type (I_Typ, Directly_Designated_Type (T));
102      Set_Etype                    (I_Typ, Base_Type (T));
103      Set_Depends_On_Private       (I_Typ, Depends_On_Private (T));
104      Set_Is_Public                (I_Typ, Is_Public          (T));
105      Set_From_Limited_With        (I_Typ, From_Limited_With  (T));
106      Set_Is_Access_Constant       (I_Typ, Is_Access_Constant (T));
107      Set_Is_Generic_Type          (I_Typ, Is_Generic_Type    (T));
108      Set_Is_Volatile              (I_Typ, Is_Volatile        (T));
109      Set_Treat_As_Volatile        (I_Typ, Treat_As_Volatile  (T));
110      Set_Is_Atomic                (I_Typ, Is_Atomic          (T));
111      Set_Is_Ada_2005_Only         (I_Typ, Is_Ada_2005_Only   (T));
112      Set_Is_Ada_2012_Only         (I_Typ, Is_Ada_2012_Only   (T));
113      Set_Is_Ada_2022_Only         (I_Typ, Is_Ada_2022_Only   (T));
114      Set_Can_Never_Be_Null        (I_Typ);
115
116      return I_Typ;
117   end Create_Null_Excluding_Itype;
118
119end Itypes;
120