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8sa1-gcc/gcc/ada/scans.adb
Thomas Quinot 68e2ea2757 ali-util.adb (Get_File_Checksum): Update to account for change in profile of Initialize_Scanner. 
2006-02-13  Thomas Quinot  <quinot@adacore.com>
	    Vincent Celier  <celier@adacore.com>
	    Robert Dewar  <dewar@adacore.com>

	* ali-util.adb (Get_File_Checksum): Update to account for change in
	profile of Initialize_Scanner.

	* gprep.adb (Gnatprep): Update to account for change in profile of
	Initialize_Scanner.
	(Process_One_File): Same.

	* lib.adb (Get_Code_Or_Source_Unit): New subprogram factoring the
	common code between Get_Code_Unit and Get_Source_Unit. Reimplement
	that behaviour using the new Unit information recorded in the source
	files table, rather than going through all units every time.
	(Get_Code_Unit): Reimplement in terms of Get_Code_Or_Source_Unit.
	(Get_Source_Unit): Same.

	* prepcomp.adb (Parse_Preprocessing_Data_File): Update to account for
	change in profile of Initialize_Scanner.
	(Prepare_To_Preprocess): Same.

	* lib.ads: Fix typo in comment (templace -> template).

	* prj-part.adb (Parse_Single_Project): Update to account for change in
	profile of Initialize_Scanner.

	* scn.adb (Initialize_Scanner): Account for change in profile of
	Scng.Initialize_Scanner: set Current_Source_Unit in Scn instead of Scng.
	Also record the association of the given Source_File_Index to the
	corresponding Unit_Number_Type.

	* scng.ads, scng.adb (Initialize_Scanner.Set_Reserved): Remove
	procedure.
	(Initialize_Scanner): Call Scans.Initialize_Ada_Keywords.
	Remove Unit formal for generic scanner: this formal
	is only relevant to Scn (the scanner instance used to parse Ada source
	files), not to other instances. Update comment accordingly.
	(Scan): Use new function Snames.Is_Keyword_Name.

	* sinfo-cn.adb: Fix typo in comment.

	* sinput.adb (Unit, Set_Unit): Accessors for new source file attribute
	Unit.

	* sinput.ads (Source_File_Record): New component Unit, used to capture
	the unit identifier (if any) associated to a source file.

	* sinput-c.adb, sinput-l.adb (Load_File): Initialize new component
	Unit in Source_File_Record.

	* sinput-p.adb (Source_File_Is_Subunit): Update to account for change
	in profile of Initialize_Scanner.

	* scans.adb (Initialize_Ada_Keywords): New procedure

	* scans.ads (Initialize_Ada_Keywords): New procedure to initialize the
	Ada keywords in the Namet table, without the need to call
	Initialize_Scanner.

	* snames.adb: Add pragma Ada_2005 (synonym for Ada_05)
	(Is_Keyword_Name): New function

	* snames.ads: Add subtype Configuration_Pragma_Names
	Add pragma Ada_2005 (synonym for Ada_05)
	(Is_Keyword_Name): New function

	* snames.h: Add pragma Ada_2005 (synonym for Ada_05)

From-SVN: r111032
2006-02-15 10:32:12 +01:00

184 lines
8.7 KiB
Ada
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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- S C A N S --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2006, 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, 51 Franklin Street, Fifth Floor, --
-- Boston, MA 02110-1301, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Namet; use Namet;
with Snames; use Snames;
package body Scans is
-----------------------------
-- Initialize_Ada_Keywords --
-----------------------------
procedure Initialize_Ada_Keywords is
procedure Set_Reserved (N : Name_Id; T : Token_Type);
pragma Inline (Set_Reserved);
-- Set given name as a reserved word (T is the corresponding token)
------------------
-- Set_Reserved --
------------------
procedure Set_Reserved (N : Name_Id; T : Token_Type) is
begin
-- Set up Token_Type values in Names table entries for reserved
-- words. We use the Pos value of the Token_Type value. Note that
-- Is_Keyword_Name relies on the fact that Token_Type'Val (0) is not
-- a reserved word!
Set_Name_Table_Byte (N, Token_Type'Pos (T));
end Set_Reserved;
-- Start of processing for Initialize_Ada_Keywords
begin
-- Establish reserved words
Set_Reserved (Name_Abort, Tok_Abort);
Set_Reserved (Name_Abs, Tok_Abs);
Set_Reserved (Name_Abstract, Tok_Abstract);
Set_Reserved (Name_Accept, Tok_Accept);
Set_Reserved (Name_Access, Tok_Access);
Set_Reserved (Name_And, Tok_And);
Set_Reserved (Name_Aliased, Tok_Aliased);
Set_Reserved (Name_All, Tok_All);
Set_Reserved (Name_Array, Tok_Array);
Set_Reserved (Name_At, Tok_At);
Set_Reserved (Name_Begin, Tok_Begin);
Set_Reserved (Name_Body, Tok_Body);
Set_Reserved (Name_Case, Tok_Case);
Set_Reserved (Name_Constant, Tok_Constant);
Set_Reserved (Name_Declare, Tok_Declare);
Set_Reserved (Name_Delay, Tok_Delay);
Set_Reserved (Name_Delta, Tok_Delta);
Set_Reserved (Name_Digits, Tok_Digits);
Set_Reserved (Name_Do, Tok_Do);
Set_Reserved (Name_Else, Tok_Else);
Set_Reserved (Name_Elsif, Tok_Elsif);
Set_Reserved (Name_End, Tok_End);
Set_Reserved (Name_Entry, Tok_Entry);
Set_Reserved (Name_Exception, Tok_Exception);
Set_Reserved (Name_Exit, Tok_Exit);
Set_Reserved (Name_For, Tok_For);
Set_Reserved (Name_Function, Tok_Function);
Set_Reserved (Name_Generic, Tok_Generic);
Set_Reserved (Name_Goto, Tok_Goto);
Set_Reserved (Name_If, Tok_If);
Set_Reserved (Name_In, Tok_In);
Set_Reserved (Name_Is, Tok_Is);
Set_Reserved (Name_Limited, Tok_Limited);
Set_Reserved (Name_Loop, Tok_Loop);
Set_Reserved (Name_Mod, Tok_Mod);
Set_Reserved (Name_New, Tok_New);
Set_Reserved (Name_Not, Tok_Not);
Set_Reserved (Name_Null, Tok_Null);
Set_Reserved (Name_Of, Tok_Of);
Set_Reserved (Name_Or, Tok_Or);
Set_Reserved (Name_Others, Tok_Others);
Set_Reserved (Name_Out, Tok_Out);
Set_Reserved (Name_Package, Tok_Package);
Set_Reserved (Name_Pragma, Tok_Pragma);
Set_Reserved (Name_Private, Tok_Private);
Set_Reserved (Name_Procedure, Tok_Procedure);
Set_Reserved (Name_Protected, Tok_Protected);
Set_Reserved (Name_Raise, Tok_Raise);
Set_Reserved (Name_Range, Tok_Range);
Set_Reserved (Name_Record, Tok_Record);
Set_Reserved (Name_Rem, Tok_Rem);
Set_Reserved (Name_Renames, Tok_Renames);
Set_Reserved (Name_Requeue, Tok_Requeue);
Set_Reserved (Name_Return, Tok_Return);
Set_Reserved (Name_Reverse, Tok_Reverse);
Set_Reserved (Name_Select, Tok_Select);
Set_Reserved (Name_Separate, Tok_Separate);
Set_Reserved (Name_Subtype, Tok_Subtype);
Set_Reserved (Name_Tagged, Tok_Tagged);
Set_Reserved (Name_Task, Tok_Task);
Set_Reserved (Name_Terminate, Tok_Terminate);
Set_Reserved (Name_Then, Tok_Then);
Set_Reserved (Name_Type, Tok_Type);
Set_Reserved (Name_Until, Tok_Until);
Set_Reserved (Name_Use, Tok_Use);
Set_Reserved (Name_When, Tok_When);
Set_Reserved (Name_While, Tok_While);
Set_Reserved (Name_With, Tok_With);
Set_Reserved (Name_Xor, Tok_Xor);
-- Ada 2005 reserved words
Set_Reserved (Name_Interface, Tok_Interface);
Set_Reserved (Name_Overriding, Tok_Overriding);
Set_Reserved (Name_Synchronized, Tok_Synchronized);
end Initialize_Ada_Keywords;
------------------------
-- Restore_Scan_State --
------------------------
procedure Restore_Scan_State (Saved_State : Saved_Scan_State) is
begin
Scan_Ptr := Saved_State.Save_Scan_Ptr;
Token := Saved_State.Save_Token;
Token_Ptr := Saved_State.Save_Token_Ptr;
Current_Line_Start := Saved_State.Save_Current_Line_Start;
Start_Column := Saved_State.Save_Start_Column;
Checksum := Saved_State.Save_Checksum;
First_Non_Blank_Location := Saved_State.Save_First_Non_Blank_Location;
Token_Node := Saved_State.Save_Token_Node;
Token_Name := Saved_State.Save_Token_Name;
Prev_Token := Saved_State.Save_Prev_Token;
Prev_Token_Ptr := Saved_State.Save_Prev_Token_Ptr;
end Restore_Scan_State;
---------------------
-- Save_Scan_State --
---------------------
procedure Save_Scan_State (Saved_State : out Saved_Scan_State) is
begin
Saved_State.Save_Scan_Ptr := Scan_Ptr;
Saved_State.Save_Token := Token;
Saved_State.Save_Token_Ptr := Token_Ptr;
Saved_State.Save_Current_Line_Start := Current_Line_Start;
Saved_State.Save_Start_Column := Start_Column;
Saved_State.Save_Checksum := Checksum;
Saved_State.Save_First_Non_Blank_Location := First_Non_Blank_Location;
Saved_State.Save_Token_Node := Token_Node;
Saved_State.Save_Token_Name := Token_Name;
Saved_State.Save_Prev_Token := Prev_Token;
Saved_State.Save_Prev_Token_Ptr := Prev_Token_Ptr;
end Save_Scan_State;
end Scans;
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