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Diffstat (limited to 'gcc/ada/sinfo-cn.ads')
| -rw-r--r-- | gcc/ada/sinfo-cn.ads | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/gcc/ada/sinfo-cn.ads b/gcc/ada/sinfo-cn.ads new file mode 100644 index 0000000..03dcae3 --- /dev/null +++ b/gcc/ada/sinfo-cn.ads @@ -0,0 +1,71 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- S I N F O . C N -- +-- -- +-- S p e c -- +-- -- +-- $Revision: 1.9 $ +-- -- +-- 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 similar 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 laid out in a manner that permits such alteration. + +package Sinfo.CN is + + procedure Change_Identifier_To_Defining_Identifier (N : in out Node_Id); + -- N must refer to a node of type N_Identifier. This node is modified to + -- be of type N_Defining_Identifier. The scanner always returns identifiers + -- as N_Identifier. The parser then uses this routine to change the node + -- to be a defining identifier where the context demands it. This routine + -- also allocates the necessary extension node. Note that this procedure + -- may (but is not required to) change the Id of the node in question. + + procedure Change_Character_Literal_To_Defining_Character_Literal + (N : in out Node_Id); + -- Similar processing for a character literal + + procedure Change_Operator_Symbol_To_Defining_Operator_Symbol + (N : in out Node_Id); + -- Similar processing for an operator symbol + + procedure Change_Conversion_To_Unchecked (N : Node_Id); + -- Change checked conversion node to unchecked conversion node, clearing + -- irrelevant check flags (other fields in the two nodes are identical) + + procedure Change_Operator_Symbol_To_String_Literal (N : Node_Id); + -- The scanner returns any string that looks like an operator symbol as + -- a N_Operator_Symbol node. The parser then uses this procedure to change + -- the node to a normal N_String_Literal node if the context is not one + -- in which an operator symbol is required. There are some cases where the + -- parser cannot tell, in which case this transformation happens later on. + + procedure Change_Selected_Component_To_Expanded_Name (N : Node_Id); + -- The parser always generates Selected_Component nodes. The semantics + -- modifies these to Expanded_Name nodes where appropriate. Note that + -- on return the Chars field is set to a copy of the contents of the + -- Chars field of the Selector_Name field. + +end Sinfo.CN; |