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 --          Copyright (C) 1992-2003 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 2,  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 COPYING.  If not, write --
  19 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, USA.                                              --
  21 --                                                                          --
  22 -- GNAT was originally developed  by the GNAT team at  New York University. --
  23 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  24 --                                                                          --
  25 ------------------------------------------------------------------------------
  26
  27 --  Routines to build stream subprograms for composite types
  28
  29 with Exp_Tss; use Exp_Tss;
  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 : TSS_Name_Type) return List_Id;
  49    --  Builds the parameter profile for the stream attribute identified by
  50    --  the given name. This is used for the tagged case to build the spec
  51    --  for the primitive operation.
  52
  53    --  The following routines build procedures and functions for stream
  54    --  attributes applied to composite types. For each of these routines,
  55    --  Loc is used to provide the location for the constructed subprogram
  56    --  declaration. Typ is the base type to which the subprogram applies
  57    --  (i.e. the base type of the stream attribute prefix). The returned
  58    --  results are the declaration and name (entity) of the subprogram.
  59
  60    procedure Build_Array_Input_Function
  61      (Loc  : Source_Ptr;
  62       Typ  : Entity_Id;
  63       Decl : out Node_Id;
  64       Fnam : out Entity_Id);
  65    --  Build function for Input attribute for array type
  66
  67    procedure Build_Array_Output_Procedure
  68      (Loc  : Source_Ptr;
  69       Typ  : Entity_Id;
  70       Decl : out Node_Id;
  71       Pnam : out Entity_Id);
  72    --  Build procedure for Output attribute for array type
  73
  74    procedure Build_Array_Read_Procedure
  75      (Nod  : Node_Id;
  76       Typ  : Entity_Id;
  77       Decl : out Node_Id;
  78       Pnam : out Entity_Id);
  79    --  Build procedure for Read attribute for array type. Nod provides the
  80    --  Sloc value for generated code.
  81
  82    procedure Build_Array_Write_Procedure
  83      (Nod  : Node_Id;
  84       Typ  : Entity_Id;
  85       Decl : out Node_Id;
  86       Pnam : out Entity_Id);
  87    --  Build procedure for Write attribute for array type. Nod provides the
  88    --  Sloc value for generated code.
  89
  90    procedure Build_Mutable_Record_Read_Procedure
  91      (Loc  : Source_Ptr;
  92       Typ  : Entity_Id;
  93       Decl : out Node_Id;
  94       Pnam : out Entity_Id);
  95    --  Build procedure to Read a record with default discriminants.
  96    --  Discriminants must be read explicitly (RM 13.13.2(9)) in the
  97    --  same manner as is done for 'Input.
  98
  99    procedure Build_Mutable_Record_Write_Procedure
 100      (Loc  : Source_Ptr;
 101       Typ  : Entity_Id;
 102       Decl : out Node_Id;
 103       Pnam : out Entity_Id);
 104    --  Build procedure to write a record with default discriminants.
 105    --  Discriminants must be written explicitly (RM 13.13.2(9)) in
 106    --  the same manner as is done for 'Output.
 107
 108    procedure Build_Record_Or_Elementary_Input_Function
 109      (Loc  : Source_Ptr;
 110       Typ  : Entity_Id;
 111       Decl : out Node_Id;
 112       Fnam : out Entity_Id);
 113    --  Build function for Input attribute for record type or for an
 114    --  elementary type (the latter is used only in the case where a
 115    --  user defined Read routine is defined, since in other cases,
 116    --  Input calls the appropriate runtime library routine directly.
 117
 118    procedure Build_Record_Or_Elementary_Output_Procedure
 119      (Loc  : Source_Ptr;
 120       Typ  : Entity_Id;
 121       Decl : out Node_Id;
 122       Pnam : out Entity_Id);
 123    --  Build procedure for Output attribute for record type or for an
 124    --  elementary type (the latter is used only in the case where a
 125    --  user defined Write routine is defined, since in other cases,
 126    --  Output calls the appropriate runtime library routine directly.
 127
 128    procedure Build_Record_Read_Procedure
 129      (Loc  : Source_Ptr;
 130       Typ  : Entity_Id;
 131       Decl : out Node_Id;
 132       Pnam : out Entity_Id);
 133    --  Build procedure for Read attribute for record type
 134
 135    procedure Build_Record_Write_Procedure
 136      (Loc  : Source_Ptr;
 137       Typ  : Entity_Id;
 138       Decl : out Node_Id;
 139       Pnam : out Entity_Id);
 140    --  Build procedure for Write attribute for record type
 141
 142    procedure Build_Stream_Procedure
 143      (Loc  : Source_Ptr;
 144       Typ  : Entity_Id;
 145       Decl : out Node_Id;
 146       Pnam : Entity_Id;
 147       Stms : List_Id;
 148       Outp : Boolean);
 149    --  Called to build an array or record stream procedure. The first three
 150    --  arguments are the same as Build_Record_Or_Elementary_Output_Procedure.
 151    --  Stms is the list of statements for the body (the declaration list is
 152    --  always null), and Pnam is the name of the constructed procedure.
 153    --  Used by Exp_Dist to generate stream-oriented attributes for RACWs.
 154
 155 end Exp_Strm;