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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- G N A T . C P P _ E X C E P T I O N S --
-- --
-- S p e c --
-- --
-- Copyright (C) 2013-2025, AdaCore --
-- --
-- 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. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- This package provides an interface for raising and handling C++ exceptions
with System;
with Ada.Exceptions; use Ada.Exceptions;
with GNAT.CPP.Std; use GNAT.CPP.Std;
package GNAT.CPP_Exceptions is
generic
type T is private;
procedure Raise_Cpp_Exception (Id : Exception_Id; Value : T);
-- Raise a C++ exception identified by Id. Associate Value with this
-- occurrence. Id must refer to an exception that has the Cpp convention.
function Get_Object_Address
(X : Exception_Occurrence) return System.Address;
-- Extract the address of the object associated with X. The
-- exception of the occurrence X must have a Cpp Convention. When
-- the exception handler catches a base type of the raised object,
-- the returned address is that of the base type part of the
-- object, the type explicitly expected by the handler.
generic
type T is private;
function Get_Object (X : Exception_Occurrence) return T;
-- Extract the object associated with X. The exception of the
-- occurrence X must have a Cpp Convention. When the exception
-- handler catches a base type of the raised object, the returned
-- object is (a copy of) the base type portion of the object.
generic
type T is limited private;
function Get_Access_To_Object (X : Exception_Occurrence)
return access T;
-- Extract the object associated with X. The exception of the
-- occurrence X must have a Cpp Convention. When the exception
-- handler catches a base type of the raised object, access is
-- returned to the base type part of the object, the type
-- explicitly expected by the handler.
generic
type T is abstract tagged limited private;
function Get_Access_To_Tagged_Object (X : Exception_Occurrence)
return access T'Class;
-- Extract the object associated with X. The exception of the
-- occurrence X must have a Cpp Convention. When the exception
-- handler catches a base type of the raised object, access is
-- returned to the base type part of the object, the type
-- explicitly expected by the handler.
function Get_Type_Info (X : Exception_Occurrence) return Type_Info_Ptr;
-- Obtain the type information of the full C++ object raised as X.
-- When the exception is caught using a base-type match exception,
-- this may be a derived class from that named for the exception.
function Get_Type_Info (Id : Exception_Id) return Type_Info_Ptr;
-- Obtain the type information of a C++ exception type. This will
-- be the std::type_info object named in the exception
-- declaration, even if ID is taken from an exception occurrence
-- containing an object of a derived type.
end GNAT.CPP_Exceptions;
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