-- --
-- S p e c --
-- --
--- Copyright (C) 1996-1999 Free Software Foundation, Inc. --
+-- Copyright (C) 1996-2005 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- --
-- 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. --
+-- 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 package implements the interface used to maintain a table of
+-- registered exception names, for the implementation of the mapping
+-- of names to exceptions (used for exception streams and attributes)
+
with System.Standard_Library;
package System.Exception_Table is
-pragma Elaborate_Body;
+ pragma Elaborate_Body;
package SSL renames System.Standard_Library;
procedure Register_Exception (X : SSL.Exception_Data_Ptr);
pragma Inline (Register_Exception);
- -- Register an exception in the hash table mapping
+ -- Register an exception in the hash table mapping. This function is
+ -- called during elaboration of library packages. For exceptions that
+ -- are declared within subprograms, the registration occurs the first
+ -- time that an exception is elaborated during a call of the subprogram.
+ --
+ -- Note: all calls to Register_Exception other than those to register the
+ -- predefined exceptions are suppressed if the application is compiled
+ -- with pragma Restrictions (No_Exception_Registration).
- function Internal_Exception (X : String) return SSL.Exception_Data_Ptr;
+ function Internal_Exception
+ (X : String;
+ Create_If_Not_Exist : Boolean := True) return SSL.Exception_Data_Ptr;
-- Given an exception_name X, returns a pointer to the actual internal
- -- exception data.
+ -- exception data. A new entry is created in the table if X does not
+ -- exist yet and Create_If_Not_Exist is True. If it is false and X
+ -- does not exist yet, null is returned.
+
+ function Registered_Exceptions_Count return Natural;
+ -- Return the number of currently registered exceptions.
+
+ type Exception_Data_Array is array (Natural range <>)
+ of SSL.Exception_Data_Ptr;
+
+ procedure Get_Registered_Exceptions
+ (List : out Exception_Data_Array;
+ Last : out Integer);
+ -- Return the list of registered exceptions.
end System.Exception_Table;
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