New Language: Ada

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@45959 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 114 insertions, 0 deletions

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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                             S I N F O . C N                              --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--                            $Revision: 1.7 $
+--                                                                          --
+--          Copyright (C) 1992-2001 Free Software Foundation, Inc.          --
+--                                                                          --
+-- GNAT is free software;  you can  redistribute it  and/or modify it under --
+-- terms of the  GNU General Public License as published  by the Free Soft- --
+-- ware  Foundation;  either version 2,  or (at your option) any later ver- --
+-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
+-- for  more details.  You should have  received  a copy of the GNU General --
+-- Public License  distributed with GNAT;  see file COPYING.  If not, write --
+-- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
+-- MA 02111-1307, USA.                                                      --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This child package of Sinfo contains some routines that permit in place
+--  alteration of existing tree nodes by changing the value in the Nkind
+--  field. Since Nkind functions logically in a manner similart to a variant
+--  record discriminant part, such alterations cannot be permitted in a
+--  general manner, but in some specific cases, the fields of related nodes
+--  have been deliberately layed out in a manner that permits such alteration.
+--  that determin
+
+with Atree; use Atree;
+
+package body Sinfo.CN is
+
+   use Atree.Unchecked_Access;
+   --  This package is one of the few packages which is allowed to make direct
+   --  references to tree nodes (since it is in the business of providing a
+   --  higher level of tree access which other clients are expected to use and
+   --  which implements checks).
+
+   ------------------------------------------------------------
+   -- Change_Character_Literal_To_Defining_Character_Literal --
+   ------------------------------------------------------------
+
+   procedure Change_Character_Literal_To_Defining_Character_Literal
+     (N : in out Node_Id)
+   is
+   begin
+      Set_Nkind (N, N_Defining_Character_Literal);
+      N := Extend_Node (N);
+   end Change_Character_Literal_To_Defining_Character_Literal;
+
+   ------------------------------------
+   -- Change_Conversion_To_Unchecked --
+   ------------------------------------
+
+   procedure Change_Conversion_To_Unchecked (N : Node_Id) is
+   begin
+      Set_Do_Overflow_Check (N, False);
+      Set_Do_Tag_Check (N, False);
+      Set_Do_Length_Check (N, False);
+      Set_Nkind (N, N_Unchecked_Type_Conversion);
+   end Change_Conversion_To_Unchecked;
+
+   ----------------------------------------------
+   -- Change_Identifier_To_Defining_Identifier --
+   ----------------------------------------------
+
+   procedure Change_Identifier_To_Defining_Identifier (N : in out Node_Id) is
+   begin
+      Set_Nkind (N, N_Defining_Identifier);
+      N := Extend_Node (N);
+   end Change_Identifier_To_Defining_Identifier;
+
+   --------------------------------------------------------
+   -- Change_Operator_Symbol_To_Defining_Operator_Symbol --
+   --------------------------------------------------------
+
+   procedure Change_Operator_Symbol_To_Defining_Operator_Symbol
+     (N : in out Node_Id)
+   is
+   begin
+      Set_Nkind (N, N_Defining_Operator_Symbol);
+      Set_Node2 (N, Empty); -- Clear unused Str2 field
+      N := Extend_Node (N);
+   end Change_Operator_Symbol_To_Defining_Operator_Symbol;
+
+   ----------------------------------------------
+   -- Change_Operator_Symbol_To_String_Literal --
+   ----------------------------------------------
+
+   procedure Change_Operator_Symbol_To_String_Literal (N : Node_Id) is
+   begin
+      Set_Nkind (N, N_String_Literal);
+      Set_Node1 (N, Empty); -- clear Name1 field
+   end Change_Operator_Symbol_To_String_Literal;
+
+   ------------------------------------------------
+   -- Change_Selected_Component_To_Expanded_Name --
+   ------------------------------------------------
+
+   procedure Change_Selected_Component_To_Expanded_Name (N : Node_Id) is
+   begin
+      Set_Nkind (N, N_Expanded_Name);
+      Set_Chars (N, Chars (Selector_Name (N)));
+   end Change_Selected_Component_To_Expanded_Name;
+
+end Sinfo.CN;