------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S I N F O . C N -- -- -- -- B o d y -- -- -- -- 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. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- 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;