gcc/ada/sem_ch4.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                              S E M _ C H 4                               --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2023, 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
  26 with Types; use Types;
  27
  28 package Sem_Ch4  is
  29    procedure Analyze_Aggregate                 (N : Node_Id);
  30    procedure Analyze_Allocator                 (N : Node_Id);
  31    procedure Analyze_Arithmetic_Op             (N : Node_Id);
  32    procedure Analyze_Call                      (N : Node_Id);
  33    procedure Analyze_Case_Expression           (N : Node_Id);
  34    procedure Analyze_Comparison_Equality_Op    (N : Node_Id);
  35    procedure Analyze_Concatenation             (N : Node_Id);
  36    procedure Analyze_Explicit_Dereference      (N : Node_Id);
  37    procedure Analyze_Expression_With_Actions   (N : Node_Id);
  38    procedure Analyze_If_Expression             (N : Node_Id);
  39    procedure Analyze_Logical_Op                (N : Node_Id);
  40    procedure Analyze_Membership_Op             (N : Node_Id);
  41    procedure Analyze_Mod                       (N : Node_Id);
  42    procedure Analyze_Negation                  (N : Node_Id);
  43    procedure Analyze_Null                      (N : Node_Id);
  44    procedure Analyze_Qualified_Expression      (N : Node_Id);
  45    procedure Analyze_Quantified_Expression     (N : Node_Id);
  46    procedure Analyze_Range                     (N : Node_Id);
  47    procedure Analyze_Reference                 (N : Node_Id);
  48    procedure Analyze_Selected_Component        (N : Node_Id);
  49    procedure Analyze_Short_Circuit             (N : Node_Id);
  50    procedure Analyze_Slice                     (N : Node_Id);
  51    procedure Analyze_Type_Conversion           (N : Node_Id);
  52    procedure Analyze_Unary_Op                  (N : Node_Id);
  53    procedure Analyze_Unchecked_Expression      (N : Node_Id);
  54    procedure Analyze_Unchecked_Type_Conversion (N : Node_Id);
  55
  56    procedure Ambiguous_Operands (N : Node_Id);
  57    --  Give an error for comparison, equality and membership operators with
  58    --  ambiguous operands, and list possible interpretations.
  59
  60    procedure Analyze_Indexed_Component_Form    (N : Node_Id);
  61    --  Prior to semantic analysis, an indexed component node can denote any
  62    --  of the following syntactic constructs:
  63    --    a) An indexed component of an array
  64    --    b) A function call
  65    --    c) A conversion
  66    --    d) A slice
  67    --  The resolution of the construct requires some semantic information
  68    --  on the prefix and the indexes.
  69
  70    procedure Nondispatching_Call_To_Abstract_Operation
  71      (N           : Node_Id;
  72       Abstract_Op : Entity_Id);
  73    --  Give an error, or a warning and rewrite N to raise Program_Error because
  74    --  it is a nondispatching call to an abstract operation.
  75
  76    function Try_Object_Operation
  77      (N                : Node_Id;
  78       CW_Test_Only     : Boolean := False;
  79       Allow_Extensions : Boolean := False) return Boolean;
  80    --  Ada 2005 (AI-252): Support the object.operation notation. If node N is
  81    --  a call in this notation, it is transformed into a normal subprogram call
  82    --  where the prefix is a parameter, and True is returned. If node N is not
  83    --  of this form, it is unchanged, and False is returned. If CW_Test_Only is
  84    --  true then N is an N_Selected_Component node which is part of a call to
  85    --  an entry or procedure of a tagged concurrent type and this routine is
  86    --  invoked to search for class-wide subprograms conflicting with the target
  87    --  entity. If Allow_Extensions is True, then a prefixed call of a primitive
  88    --  of a non-tagged type is allowed as if Extensions_Allowed returned True.
  89    --  This is used to issue better error messages.
  90
  91    procedure Unresolved_Operator (N : Node_Id);
  92    --  Give an error for an unresolved operator
  93
  94 end Sem_Ch4;