note
	description: "Abstraction for a conversion."
	legal: "See notice at end of class."
	status: "See notice at end of class."
	date: "$Date$"
	revision: "$Revision$"

deferred class
	CONVERSION_INFO

feature {NONE} -- Initialization

	make (a_target_type: like target_type)
			-- New instance of ANY to SYSTEM_OBJECT conversion.
		require
			a_target_type_not_void: a_target_type /= Void
		do
			target_type := a_target_type
		ensure
			target_type_set: target_type = a_target_type
		end

feature -- Access

	target_type: TYPE_A
			-- Target type of a conversion

feature -- Properties

	depend_unit: DEPEND_UNIT
			-- Associated depend unit used for incrementality
		require
			has_depend_unit: has_depend_unit
		do
		ensure
			depend_unit_not_void: Result /= Void
		end

feature -- Status report

	has_depend_unit: BOOLEAN
			-- Can `depend_unit' be accessed?
		do
		end

feature -- Byte code generation

	byte_node (an_expr: EXPR_B): EXPR_B
			-- Generate byte node needed to convert `an_expr' to `target_type'
		require
			an_expr_not_void: an_expr /= Void
		deferred
		ensure
			byte_node_not_void: Result /= Void
		end

invariant
	target_type_not_void: target_type /= Void

note
	copyright:	"Copyright (c) 1984-2015, 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
			5949 Hollister Ave., 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 CONVERSION_INFO