gcc/ada/exp_strm.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             E X P _ S T R M                              --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --                                                                          --
  10 --          Copyright (C) 1992-1999 Free Software Foundation, Inc.          --
  11 --                                                                          --
  12 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  13 -- terms of the  GNU General Public License as published  by the Free Soft- --
  14 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  15 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  16 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  17 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  18 -- for  more details.  You should have  received  a copy of the GNU General --
  19 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  20 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  21 -- MA 02111-1307, USA.                                                      --
  22 --                                                                          --
  23 -- GNAT was originally developed  by the GNAT team at  New York University. --
  24 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
  25 --                                                                          --
  26 ------------------------------------------------------------------------------
  27
  28 --  Routines to build stream subprograms for composite types
  29
  30 with Types; use Types;
  31
  32 package Exp_Strm is
  33
  34    function Build_Elementary_Input_Call (N : Node_Id) return Node_Id;
  35    --  Build call to Read attribute function for elementary type. Also used
  36    --  for Input attributes for elementary types with an appropriate extra
  37    --  assignment statement. N is the attribute reference node.
  38
  39    function Build_Elementary_Write_Call (N : Node_Id) return Node_Id;
  40    --  Build call to Write attribute function for elementary type. Also used
  41    --  for Output attributes for elementary types (since the effect of the
  42    --  two attributes is identical for elementary types). N is the attribute
  43    --  reference node.
  44
  45    function Build_Stream_Attr_Profile
  46      (Loc  : Source_Ptr;
  47       Typ  : Entity_Id;
  48       Nam  : Name_Id)
  49       return List_Id;
  50    --  Builds the parameter profile for the stream attribute identified by
  51    --  the given name (which is the underscore version, e.g. Name_uWrite to
  52    --  identify the Write attribute). This is used for the tagged case to
  53    --  build the spec for the primitive operation.
  54
  55    --  The following routines build procedures and functions for stream
  56    --  attributes applied to composite types. For each of these routines,
  57    --  Loc is used to provide the location for the constructed subprogram
  58    --  declaration. Typ is the base type to which the subprogram applies
  59    --  (i.e. the base type of the stream attribute prefix). The returned
  60    --  results are the declaration and name (entity) of the subprogram.
  61
  62    procedure Build_Array_Input_Function
  63      (Loc  : Source_Ptr;
  64       Typ  : Entity_Id;
  65       Decl : out Node_Id;
  66       Fnam : out Entity_Id);
  67    --  Build function for Input attribute for array type
  68
  69    procedure Build_Array_Output_Procedure
  70      (Loc  : Source_Ptr;
  71       Typ  : Entity_Id;
  72       Decl : out Node_Id;
  73       Pnam : out Entity_Id);
  74    --  Build procedure for Output attribute for array type
  75
  76    procedure Build_Array_Read_Procedure
  77      (Nod  : Node_Id;
  78       Typ  : Entity_Id;
  79       Decl : out Node_Id;
  80       Pnam : out Entity_Id);
  81    --  Build procedure for Read attribute for array type. Nod provides the
  82    --  Sloc value for generated code.
  83
  84    procedure Build_Array_Write_Procedure
  85      (Nod  : Node_Id;
  86       Typ  : Entity_Id;
  87       Decl : out Node_Id;
  88       Pnam : out Entity_Id);
  89    --  Build procedure for Write attribute for array type. Nod provides the
  90    --  Sloc value for generated code.
  91
  92    procedure Build_Mutable_Record_Read_Procedure
  93      (Loc  : Source_Ptr;
  94       Typ  : Entity_Id;
  95       Decl : out Node_Id;
  96       Pnam : out Entity_Id);
  97    --  Build procedure to Read a record with default discriminants.
  98    --  Discriminants must be read explicitly (RM 13.13.2(9)) in the
  99    --  same manner as is done for 'Input.
 100
 101    procedure Build_Mutable_Record_Write_Procedure
 102      (Loc  : Source_Ptr;
 103       Typ  : Entity_Id;
 104       Decl : out Node_Id;
 105       Pnam : out Entity_Id);
 106    --  Build procedure to write a record with default discriminants.
 107    --  Discriminants must be written explicitly (RM 13.13.2(9)) in
 108    --  the same manner as is done for 'Output.
 109
 110    procedure Build_Record_Or_Elementary_Input_Function
 111      (Loc  : Source_Ptr;
 112       Typ  : Entity_Id;
 113       Decl : out Node_Id;
 114       Fnam : out Entity_Id);
 115    --  Build function for Input attribute for record type or for an
 116    --  elementary type (the latter is used only in the case where a
 117    --  user defined Read routine is defined, since in other cases,
 118    --  Input calls the appropriate runtime library routine directly.
 119
 120    procedure Build_Record_Or_Elementary_Output_Procedure
 121      (Loc  : Source_Ptr;
 122       Typ  : Entity_Id;
 123       Decl : out Node_Id;
 124       Pnam : out Entity_Id);
 125    --  Build procedure for Output attribute for record type or for an
 126    --  elementary type (the latter is used only in the case where a
 127    --  user defined Write routine is defined, since in other cases,
 128    --  Output calls the appropriate runtime library routine directly.
 129
 130    procedure Build_Record_Read_Procedure
 131      (Loc  : Source_Ptr;
 132       Typ  : Entity_Id;
 133       Decl : out Node_Id;
 134       Pnam : out Entity_Id);
 135    --  Build procedure for Read attribute for record type
 136
 137    procedure Build_Record_Write_Procedure
 138      (Loc  : Source_Ptr;
 139       Typ  : Entity_Id;
 140       Decl : out Node_Id;
 141       Pnam : out Entity_Id);
 142    --  Build procedure for Write attribute for record type
 143
 144 end Exp_Strm;