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note
	description: "[
		Set of features to access ISE runtime functionality.
		To be used at your own risk.
		Interface may changed without notice.
	]"
	library: "Free implementation of ELKS library"
	status: "See notice at end of class."
	legal: "See notice at end of class."
	date: "$Date: 2015-05-25 14:12:36 -0700 (Mon, 25 May 2015) $"
	revision: "$Revision: 97362 $"

frozen class 
	ISE_RUNTIME

create 
	default_create

feature {NONE} -- Initialization

	default_create
			-- Process instances of classes with no creation clause.
			-- (Default: do nothing.)
			-- (from ANY)
		do
		end
	
feature -- Access

	generating_type: TYPE [detachable ISE_RUNTIME]
			-- Type of current object
			-- (type of which it is a direct instance)
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			generating_type_not_void: Result /= Void
		end

	generator: STRING_8
			-- Name of current object's generating class
			-- (base class of the type of which it is a direct instance)
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			generator_not_void: Result /= Void
			generator_not_empty: not Result.is_empty
		end
	
feature -- Comparison

	frozen deep_equal (a: detachable ANY; b: like arg #1): BOOLEAN
			-- Are `a' and `b' either both void
			-- or attached to isomorphic object structures?
			-- (from ANY)
		do
			if a = Void then
				Result := b = Void
			else
				Result := b /= Void and then a.is_deep_equal (b)
			end
		ensure -- from ANY
			shallow_implies_deep: standard_equal (a, b) implies Result
			both_or_none_void: (a = Void) implies (Result = (b = Void))
			same_type: (Result and (a /= Void)) implies (b /= Void and then a.same_type (b))
			symmetric: Result implies deep_equal (b, a)
		end

	frozen equal (a: detachable ANY; b: like arg #1): BOOLEAN
			-- Are `a' and `b' either both void or attached
			-- to objects considered equal?
			-- (from ANY)
		do
			if a = Void then
				Result := b = Void
			else
				Result := b /= Void and then a.is_equal (b)
			end
		ensure -- from ANY
			definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.is_equal (b))
		end

	frozen is_deep_equal (other: attached ISE_RUNTIME): BOOLEAN
			-- Are `Current' and `other' attached to isomorphic object structures?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		ensure -- from ANY
			shallow_implies_deep: standard_is_equal (other) implies Result
			same_type: Result implies same_type (other)
			symmetric: Result implies other.is_deep_equal (Current)
		end

	is_equal (other: attached ISE_RUNTIME): BOOLEAN
			-- Is `other' attached to an object considered
			-- equal to current object?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		ensure -- from ANY
			symmetric: Result implies other ~ Current
			consistent: standard_is_equal (other) implies Result
		end

	frozen standard_equal (a: detachable ANY; b: like arg #1): BOOLEAN
			-- Are `a' and `b' either both void or attached to
			-- field-by-field identical objects of the same type?
			-- Always uses default object comparison criterion.
			-- (from ANY)
		do
			if a = Void then
				Result := b = Void
			else
				Result := b /= Void and then a.standard_is_equal (b)
			end
		ensure -- from ANY
			definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.standard_is_equal (b))
		end

	frozen standard_is_equal (other: attached ISE_RUNTIME): BOOLEAN
			-- Is `other' attached to an object of the same type
			-- as current object, and field-by-field identical to it?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		ensure -- from ANY
			same_type: Result implies same_type (other)
			symmetric: Result implies other.standard_is_equal (Current)
		end
	
feature -- Status report

	conforms_to (other: ANY): BOOLEAN
			-- Does type of current object conform to type
			-- of `other' (as per Eiffel: The Language, chapter 13)?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		end

	same_type (other: ANY): BOOLEAN
			-- Is type of current object identical to type of `other'?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		ensure -- from ANY
			definition: Result = (conforms_to (other) and other.conforms_to (Current))
		end
	
feature -- Duplication

	frozen clone (other: detachable ANY): like other
		obsolete "Use `twin' instead."
			-- Void if `other' is void; otherwise new object
			-- equal to `other'
			--
			-- For non-void `other', clone calls copy;
			-- to change copying/cloning semantics, redefine copy.
			-- (from ANY)
		do
			if other /= Void then
				Result := other.twin
			end
		ensure -- from ANY
			equal: Result ~ other
		end

	copy (other: attached ISE_RUNTIME)
			-- Update current object using fields of object attached
			-- to `other', so as to yield equal objects.
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
			type_identity: same_type (other)
		external
			"built_in"
		ensure -- from ANY
			is_equal: Current ~ other
		end

	frozen deep_clone (other: detachable ANY): like other
		obsolete "Use `deep_twin' instead."
			-- Void if `other' is void: otherwise, new object structure
			-- recursively duplicated from the one attached to `other'
			-- (from ANY)
		do
			if other /= Void then
				Result := other.deep_twin
			end
		ensure -- from ANY
			deep_equal: deep_equal (other, Result)
		end

	frozen deep_copy (other: attached ISE_RUNTIME)
			-- Effect equivalent to that of:
			--		copy (`other' . deep_twin)
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		do
			copy (other.deep_twin)
		ensure -- from ANY
			deep_equal: deep_equal (Current, other)
		end

	frozen deep_twin: attached ISE_RUNTIME
			-- New object structure recursively duplicated from Current.
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			deep_twin_not_void: Result /= Void
			deep_equal: deep_equal (Current, Result)
		end

	frozen standard_clone (other: detachable ANY): like other
		obsolete "Use `standard_twin' instead."
			-- Void if `other' is void; otherwise new object
			-- field-by-field identical to `other'.
			-- Always uses default copying semantics.
			-- (from ANY)
		do
			if other /= Void then
				Result := other.standard_twin
			end
		ensure -- from ANY
			equal: standard_equal (Result, other)
		end

	frozen standard_copy (other: attached ISE_RUNTIME)
			-- Copy every field of `other' onto corresponding field
			-- of current object.
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
			type_identity: same_type (other)
		external
			"built_in"
		ensure -- from ANY
			is_standard_equal: standard_is_equal (other)
		end

	frozen standard_twin: attached ISE_RUNTIME
			-- New object field-by-field identical to `other'.
			-- Always uses default copying semantics.
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			standard_twin_not_void: Result /= Void
			equal: standard_equal (Result, Current)
		end

	frozen twin: attached ISE_RUNTIME
			-- New object equal to `Current'
			-- twin calls copy; to change copying/twinning semantics, redefine copy.
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			twin_not_void: Result /= Void
			is_equal: Result ~ Current
		end
	
feature -- Basic operations

	frozen as_attached: attached ISE_RUNTIME
			-- Attached version of Current
			-- (Can be used during transitional period to convert
			-- non-void-safe classes to void-safe ones.)
			-- (from ANY)
		do
			Result := Current
		end

	frozen default: detachable ISE_RUNTIME
			-- Default value of object's type
			-- (from ANY)
		do
		end

	frozen default_pointer: POINTER
			-- Default value of type `POINTER'
			-- (Avoid the need to write `p'.default for
			-- some `p' of type `POINTER'.)
			-- (from ANY)
		do
		end

	default_rescue
			-- Process exception for routines with no Rescue clause.
			-- (Default: do nothing.)
			-- (from ANY)
		do
		end

	frozen do_nothing
			-- Execute a null action.
			-- (from ANY)
		do
		end
	
feature -- Feature specific to ISE runtime.

	frozen check_assert (b: BOOLEAN): BOOLEAN
		external
			"C use %"eif_copy.h%""
		alias
			"c_check_assert"
		end

	frozen generating_type_of_type (a_type_id: INTEGER_32): STRING_8
		external
			"built_in static"
		end

	frozen generator_of_type (a_type_id: INTEGER_32): STRING_8
			-- Name of the generating class of current object
		external
			"C inline use %"eif_out.h%""
		alias
			"return c_generator_of_type(eif_decoded_type($a_type_id));"
		end

	frozen in_assertion: BOOLEAN
			-- Are we currently checking some assertions?
		external
			"C inline use %"eif_eiffel.h%""
		alias
			"[
				GTCX;	/* Needed in multithreaded mode as `in_assertion' is a per-thread data. */
				return EIF_TEST(in_assertion!=0);
			]"
		end

	frozen once_objects (a_result_type_id: INTEGER_32): SPECIAL [ANY]
			-- Once objects initialized in current system.
			-- `a_result_type_id' is the dynamic type of `SPECIAL [ANY]'.
		external
			"C inline use %"eif_memory_analyzer.h%""
		alias
			"return eif_once_objects_of_result_type(eif_decoded_type($a_result_type_id));"
		end
	
feature -- Internal C routines

	frozen attached_type (a_type_id: INTEGER_32): INTEGER_32
			-- Attached version of `a_type'
		external
			"C inline use %"eif_gen_conf.h%""
		alias
			"return eif_attached_type($a_type_id)"
		end

	compiler_version: INTEGER_32
		external
			"C macro use %"eif_project.h%""
		alias
			"egc_compiler_tag"
		end

	frozen detachable_type (a_type_id: INTEGER_32): INTEGER_32
			-- Detachable version of `a_type'
		external
			"C inline  use %"eif_gen_conf.h%""
		alias
			"return eif_non_attached_type($a_type_id)"
		end

	frozen dynamic_type (object: separate ANY): INTEGER_32
			-- Dynamic type of `object'.
		external
			"built_in static"
		end

	frozen is_attached_type (a_type_id: INTEGER_32): BOOLEAN
			-- Is `a_type' an attached type?
		external
			"C inline  use %"eif_gen_conf.h%""
		alias
			"return eif_is_attached_type($a_type_id)"
		end

	frozen is_field_expanded_of_type (i: INTEGER_32; a_type_id: INTEGER_32): BOOLEAN
			-- Is `i'-th field of `object' an expanded attribute?
		external
			"C inline use %"eif_eiffel.h%""
		alias
			"return ((System(To_dtype(eif_decoded_type($a_type_id).id)).cn_types[$i - 1] & SK_HEAD) == SK_EXP);"
		end

	frozen is_field_transient_of_type (i: INTEGER_32; a_type_id: INTEGER_32): BOOLEAN
			-- Is `i-th' field (zero based index) a transient field?
		external
			"C inline use %"eif_eiffel.h%""
		alias
			"return EIF_IS_TRANSIENT_ATTRIBUTE(System(To_dtype(eif_decoded_type($a_type_id).id)), $i - 1);"
		end

	frozen persistent_field_count_of_type (a_type_id: INTEGER_32): INTEGER_32
			-- Number of logical fields in dynamic type `type_id' that are not transient.
		external
			"C inline use %"eif_eiffel.h%""
		alias
			"return (System(To_dtype(eif_decoded_type($a_type_id).id)).cn_persistent_nbattr);"
		end

	frozen pre_ecma_mapping_status: BOOLEAN
			-- Do we map old name to new name by default?
		external
			"C inline use %"eif_cecil.h%""
		alias
			"return eif_pre_ecma_mapping();"
		end

	frozen set_pre_ecma_mapping (v: BOOLEAN)
			-- Set pre_ecma_mapping_status with `v'.
		external
			"C inline use %"eif_cecil.h%""
		alias
			"eif_set_pre_ecma_mapping($v)"
		end

	frozen storable_version_of_type (a_type_id: INTEGER_32): detachable STRING_8
		external
			"C inline use %"eif_eiffel.h%""
		alias
			"[
				const char *l_version = System(To_dtype(eif_decoded_type($a_type_id).id)).cn_version;
				if (l_version && (l_version[0] != (char) 0)) {
					return RTMS(l_version);
				} else {
					return NULL;
				}
			]"
		end

	frozen type_conforms_to (a_type_id_1, a_type_id_2: INTEGER_32): BOOLEAN
			-- Does `a_type_id_1' conform to `a_type_id_2'?
		external
			"C inline use %"eif_gen_conf.h%""
		alias
			"return eif_gen_conf($a_type_id_1, $a_type_id_2);"
		end

	frozen type_id_from_name (s: POINTER): INTEGER_32
			-- Dynamic type whose name is represented by `s'.
		external
			"C signature (char *): EIF_INTEGER use %"eif_cecil.h%""
		alias
			"eif_type_id"
		end
	
feature -- Internal support

	frozen boolean_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): BOOLEAN
			-- Boolean value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen boolean_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): BOOLEAN
			-- Boolean value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen character_32_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): CHARACTER_32
			-- Character value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen character_32_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): CHARACTER_32
			-- Character value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen character_8_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): CHARACTER_8
			-- Character value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen character_8_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): CHARACTER_8
			-- Character value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen dynamic_type_at_offset (a_enclosing: POINTER; a_physical_offset: INTEGER_32): INTEGER_32
			-- Dynamic type of the field at `a_physical_offset' bytes from `a_enclosing'.
		external
			"built_in static"
		end

	frozen eif_gen_param_id (a_type_id: INTEGER_32; i: INTEGER_32): INTEGER_32
			-- Type of `i'-th generic parameter for object of dynamic type `a_type_id'.
		external
			"C inline use %"eif_gen_conf.h%""
		alias
			"return eif_gen_param_id($a_type_id, $i);"
		end

	frozen field_count_of_type (a_type_id: INTEGER_32): INTEGER_32
			-- Number of logical fields in dynamic type `a_type_id'.
		external
			"C macro signature (EIF_INTEGER): EIF_INTEGER use %"eif_internal.h%""
		alias
			"ei_count_field_of_type"
		end

	frozen field_name_of_type (i: INTEGER_32; a_type_id: INTEGER_32): POINTER
			-- C pointer to name of `i'-th field of `object'
		external
			"built_in static"
		end

	frozen field_offset_of_type (i: INTEGER_32; a_type_id: INTEGER_32): INTEGER_32
			-- Physical offset of the `i'-th field for an object of dynamic type `a_type'.
		external
			"C macro use %"eif_eiffel.h%""
		alias
			"ei_offset_of_type"
		end

	frozen field_static_type_of_type (i: INTEGER_32; a_type_id: INTEGER_32): INTEGER_32
			-- Static type of `i'-th field of dynamic type `a_type_id'
		external
			"built_in static"
		end

	frozen field_type_of_type (i: INTEGER_32; a_type_id: INTEGER_32): INTEGER_32
			-- Abstract type of `i'-th field of dynamic type `a_type_id'
		external
			"built_in static"
		end

	frozen generic_parameter_count (a_type_id: INTEGER_32): INTEGER_32
			-- Number of generic parameters for object of dynamic type `a_type_id'.
		external
			"C inline use %"eif_gen_conf.h%""
		alias
			"return eif_gen_count_with_dftype(eif_decoded_type($a_type_id).id);"
		end

	frozen integer_16_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): INTEGER_16
			-- Integer value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen integer_16_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): INTEGER_16
			-- Integer value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen integer_32_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): INTEGER_32
			-- Integer value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen integer_32_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): INTEGER_32
			-- Integer value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen integer_64_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): INTEGER_64
			-- Integer value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen integer_64_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): INTEGER_64
			-- Integer value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen integer_8_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): INTEGER_8
			-- Integer value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen integer_8_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): INTEGER_8
			-- Integer value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen is_copy_semantics_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): BOOLEAN
			-- Does `i'-th field of `a_object + a_physical_offset' denote a reference with copy semantics?
		external
			"built_in static"
		end

	frozen is_expanded (a_object: POINTER): BOOLEAN
			-- Is `a_object' an instance of an expanded type?
		external
			"built_in static"
		end

	frozen is_special (a_object: POINTER): BOOLEAN
			-- Is `object' a special object?
		external
			"built_in static"
		end

	frozen is_special_copy_semantics_item (i: INTEGER_32; a_object: POINTER): BOOLEAN
			-- Does `i'-th item of specia `a_object' denote a reference with copy semantics?
		external
			"built_in static"
		end

	frozen is_special_of_expanded (a_object: POINTER): BOOLEAN
			-- Is type represented by `type_id' represent
			-- a SPECIAL [XX] where XX is a user defined expanded type.
		external
			"built_in static"
		end

	frozen is_special_of_reference (a_object: POINTER): BOOLEAN
			-- Is type represented by `type_id' represent
			-- a SPECIAL [XX] where XX is a reference type.
		external
			"built_in static"
		end

	frozen is_tuple (object: POINTER): BOOLEAN
			-- Is `object' a TUPLE object?
		external
			"built_in static"
		end

	frozen natural_16_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): NATURAL_16
			-- NATURAL_16 value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen natural_16_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): NATURAL_16
			-- NATURAL_16 value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen natural_32_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): NATURAL_32
			-- NATURAL_32 value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen natural_32_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): NATURAL_32
			-- NATURAL_32 value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen natural_64_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): NATURAL_64
			-- NATURAL_64 value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen natural_64_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): NATURAL_64
			-- NATURAL_64 value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen natural_8_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): NATURAL_8
			-- NATURAL_8 value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen natural_8_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): NATURAL_8
			-- NATURAL_8 value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen object_size (a_object: POINTER): NATURAL_64
			-- Physical size of `a_object'
		external
			"built_in static"
		end

	frozen pointer_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): POINTER
			-- Pointer value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen pointer_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): POINTER
			-- Pointer value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen raw_reference_field_at_offset (a_enclosing: POINTER; a_physical_offset: INTEGER_32): POINTER
			-- Retrieve the unprotected reference field of `a_enclosing' located at `a_physical_offset' bytes.
		external
			"built_in static"
		end

	frozen real_32_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): REAL_32
			-- Real value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen real_32_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): REAL_32
			-- Real value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen real_64_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): REAL_64
			-- Double precision value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen real_64_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): REAL_64
			-- Double precision value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen reference_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): detachable ANY
			-- Reference value of `i'-th field of `object + a_physical_offset'
		external
			"built_in static"
		end

	frozen reference_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32): detachable ANY
			-- Reference value of the field at `field_offset' in object `a_object + a_physical_offset'.
		external
			"built_in static"
		end

	frozen reference_field_at_offset (a_enclosing: POINTER; a_physical_offset: INTEGER_32): ANY
			-- Retrieve the reference field of `a_enclosing' located at `a_physical_offset' bytes.
		external
			"built_in static"
		end

	frozen set_boolean_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: BOOLEAN)
		external
			"built_in static"
		end

	frozen set_boolean_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: BOOLEAN)
		external
			"built_in static"
		end

	frozen set_character_32_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: CHARACTER_32)
		external
			"built_in static"
		end

	frozen set_character_32_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: CHARACTER_32)
		external
			"built_in static"
		end

	frozen set_character_8_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: CHARACTER_8)
		external
			"built_in static"
		end

	frozen set_character_8_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: CHARACTER_8)
		external
			"built_in static"
		end

	frozen set_integer_16_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: INTEGER_16)
		external
			"built_in static"
		end

	frozen set_integer_16_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: INTEGER_16)
		external
			"built_in static"
		end

	frozen set_integer_32_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: INTEGER_32)
		external
			"built_in static"
		end

	frozen set_integer_32_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: INTEGER_32)
		external
			"built_in static"
		end

	frozen set_integer_64_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: INTEGER_64)
		external
			"built_in static"
		end

	frozen set_integer_64_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: INTEGER_64)
		external
			"built_in static"
		end

	frozen set_integer_8_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: INTEGER_8)
		external
			"built_in static"
		end

	frozen set_integer_8_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: INTEGER_8)
		external
			"built_in static"
		end

	frozen set_natural_16_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: NATURAL_16)
		external
			"built_in static"
		end

	frozen set_natural_16_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: NATURAL_16)
		external
			"built_in static"
		end

	frozen set_natural_32_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: NATURAL_32)
		external
			"built_in static"
		end

	frozen set_natural_32_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: NATURAL_32)
		external
			"built_in static"
		end

	frozen set_natural_64_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: NATURAL_64)
		external
			"built_in static"
		end

	frozen set_natural_64_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: NATURAL_64)
		external
			"built_in static"
		end

	frozen set_natural_8_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: NATURAL_8)
		external
			"built_in static"
		end

	frozen set_natural_8_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: NATURAL_8)
		external
			"built_in static"
		end

	frozen set_pointer_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: POINTER)
		external
			"built_in static"
		end

	frozen set_pointer_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: POINTER)
		external
			"built_in static"
		end

	frozen set_real_32_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: REAL_32)
		external
			"built_in static"
		end

	frozen set_real_32_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: REAL_32)
		external
			"built_in static"
		end

	frozen set_real_64_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: REAL_64)
		external
			"built_in static"
		end

	frozen set_real_64_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: REAL_64)
		external
			"built_in static"
		end

	frozen set_reference_field (i: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: detachable ANY)
		external
			"built_in static"
		end

	frozen set_reference_field_at (field_offset: INTEGER_32; a_object: POINTER; a_physical_offset: INTEGER_32; value: detachable ANY)
		external
			"built_in static"
		end
	
feature -- Object marking

	frozen is_object_marked (obj: POINTER): BOOLEAN
		external
			"built_in static"
		end

	frozen lock_marking
			-- Get a lock on `mark' and `unmark' routine so that 2 threads cannot `mark' and
			-- `unmark' at the same time.
		external
			"C blocking use %"eif_traverse.h%""
		alias
			"eif_lock_marking"
		end

	frozen mark_object (obj: POINTER)
		external
			"built_in static"
		end

	frozen unlock_marking
			-- Release a lock on `mark' and `unmark', so that another thread can
			-- use `mark' and `unmark'.
		external
			"C use %"eif_traverse.h%""
		alias
			"eif_unlock_marking"
		end

	frozen unmark_object (obj: POINTER)
		external
			"built_in static"
		end
	
feature -- Output

	Io: STD_FILES
			-- Handle to standard file setup
			-- (from ANY)
		once
			create Result
			Result.set_output_default
		ensure -- from ANY
			io_not_void: Result /= Void
		end

	out: STRING_8
			-- New string containing terse printable representation
			-- of current object
			-- (from ANY)
		do
			Result := tagged_out
		ensure -- from ANY
			out_not_void: Result /= Void
		end

	print (o: detachable ANY)
			-- Write terse external representation of `o'
			-- on standard output.
			-- (from ANY)
		do
			if o /= Void then
				Io.put_string (o.out)
			end
		end

	frozen tagged_out: STRING_8
			-- New string containing terse printable representation
			-- of current object
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			tagged_out_not_void: Result /= Void
		end
	
feature -- Platform

	Operating_environment: OPERATING_ENVIRONMENT
			-- Objects available from the operating system
			-- (from ANY)
		once
			create Result
		ensure -- from ANY
			operating_environment_not_void: Result /= Void
		end
	
feature {NONE} -- Retrieval

	frozen internal_correct_mismatch
			-- Called from runtime to perform a proper dynamic dispatch on `correct_mismatch'
			-- from MISMATCH_CORRECTOR.
			-- (from ANY)
		local
			l_msg: STRING_8
			l_exc: EXCEPTIONS
		do
			if attached {MISMATCH_CORRECTOR} Current as l_corrector then
				l_corrector.correct_mismatch
			else
				create l_msg.make_from_string ("Mismatch: ")
				create l_exc
				l_msg.append (generating_type.name)
				l_exc.raise_retrieval_exception (l_msg)
			end
		end
	
invariant
		-- from ANY
	reflexive_equality: standard_is_equal (Current)
	reflexive_conformance: conforms_to (Current)

note
	copyright: "Copyright (c) 1984-2014, Eiffel Software and others"
	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
	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 ISE_RUNTIME


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