note
	description: "Constant class for IL operators"
	legal: "See notice at end of class."
	status: "See notice at end of class."
	author: ""
	date: "$Date$"
	revision: "$Revision$"

class
	IL_CONST

feature -- Property

	valid_type_kind (i: INTEGER): BOOLEAN
			-- Is `i' on of the following values `il_i1', `il_i2', `il_i4', `il_i8',
			-- `il_r4', `il_r8', `il_ref'?
		do
			Result := i = il_i1 or i = il_i2 or i = il_i4 or i = il_i8 or
					 i = il_r4 or i = il_r8 or i = il_ref
		end

feature -- Constants for binary expression

		-- Comparisons operators on numeric and characters.
	Il_lt: INTEGER = 0
	Il_le: INTEGER = 1
	Il_gt: INTEGER = 2
	Il_ge: INTEGER = 3

		-- Numeric operators.
	Il_star: INTEGER = 4
	Il_slash: INTEGER = 5
	Il_power: INTEGER = 6
	Il_plus: INTEGER = 7
	Il_mod: INTEGER = 8
	Il_minus: INTEGER = 9
	Il_div: INTEGER = 10

		-- Boolean comparisons operators.
	Il_xor: INTEGER = 11
	Il_or: INTEGER = 12
	Il_and: INTEGER = 13

		-- Equality operators.
	Il_ne: INTEGER = 14
	Il_eq: INTEGER = 15

		-- Shifting operator
	Il_shl: INTEGER = 20
	Il_shr: INTEGER = 21

feature -- Constants for unary expression

	Il_uplus: INTEGER = 16
	Il_not: INTEGER = 17
	Il_uminus: INTEGER = 18
	Il_old: INTEGER = 19
	Il_bitwise_not: INTEGER = 22

feature -- Constants for variable kind

	il_i1: INTEGER = 30
	il_i2: INTEGER = 31
	il_i4: INTEGER = 32
	il_i8: INTEGER = 33
	il_r4: INTEGER = 34
	il_r8: INTEGER = 35
	il_ref: INTEGER = 36
	il_i: INTEGER = 37
	il_u1: INTEGER = 38
	il_u2: INTEGER = 39
	il_u4: INTEGER = 40
	il_u8: INTEGER = 41
	il_expanded: INTEGER = 42

feature -- Constants for comparison

	il_min: INTEGER = 43
	il_max: INTEGER = 44
	il_three_way_comparison: INTEGER = 45

;note
	copyright:	"Copyright (c) 1984-2010, 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 IL_CONST