indexing
	description: "Error handler that manages warning and error messages."
	legal: "See notice at end of class."
	status: "See notice at end of class."
	date: "$Date$"
	revision: "$Revision $"

class
	ERROR_HANDLER

create {SHARED_ERROR_HANDLER}
	make

feature {NONE} -- Initialization

	make is
			-- Initialization
		do
			create error_list.make
			create warning_list.make
		end

feature -- Properties		

	error_list: LINKED_LIST [ERROR]
			-- Error list

	warning_list: LINKED_LIST [SYNTAX_WARNING]
			-- Warning list

feature -- Error handling primitives

	insert_error (e: ERROR) is
			-- Insert `e' in `error_list'.
		require
			good_argument: e /= Void
		do
			error_list.extend (e)
			error_list.finish
		end

	insert_warning (w: SYNTAX_WARNING) is
			-- Insert `w' in `warning_list'.
		require
			good_argument: w /= Void
		do
			warning_list.extend (w)
			warning_list.finish
		end

	raise_error is
		do
		end

	wipe_out is
			-- Empty `error_list' and `warning_list'.
		do
			error_list.wipe_out
			warning_list.wipe_out
		end

feature -- Status

	has_error: BOOLEAN is
			-- Has error handler detected an error so far?
		do
			Result := not error_list.is_empty
		end

	has_warning: BOOLEAN is
			-- Has error handler detected a warning so far?
		do
			Result := not warning_list.is_empty
		end

indexing
	copyright:	"Copyright (c) 1984-2006, Eiffel Software"
	license:	"GPL version 2 (see http://www.eiffel.com/licensing/gpl.txt)"
	licensing_options:	"http://www.eiffel.com/licensing"
	copying: "[
			This file is part of Eiffel Software's Eiffel Development Environment.
			
			Eiffel Software's Eiffel Development Environment is free
			software; you can redistribute it and/or modify it under
			the terms of the GNU General Public License as published
			by the Free Software Foundation, version 2 of the License
			(available at the URL listed under "license" above).
			
			Eiffel Software's Eiffel Development Environment is
			distributed in the hope that it will be useful,	but
			WITHOUT 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 along with Eiffel Software's Eiffel Development
			Environment; if not, write to the Free Software Foundation,
			Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
		]"
	source: "[
			 Eiffel Software
			 356 Storke Road, Goleta, CA 93117 USA
			 Telephone 805-685-1006, Fax 805-685-6869
			 Website http://www.eiffel.com
			 Customer support http://support.eiffel.com
		]"

end -- class ERROR_HANDLER