| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- S I N F O . C N -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1992-2011, 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 3, 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 COPYING3. If not, go to -- |
| -- http://www.gnu.org/licenses for a complete copy of the license. -- |
| -- -- |
| -- 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 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. |
| |
| procedure Change_Name_To_Procedure_Call_Statement (N : Node_Id); |
| -- Some statements (procedure call statements) are in the form of a name |
| -- and are parsed as such. This routine takes the scanned name as input |
| -- and returns the corresponding N_Procedure_Call_Statement. |
| |
| end Sinfo.CN; |
