indexing
	description: "Implementation of DB_ALL_TYPES"
	legal: "See notice at end of class."
	status: "See notice at end of class."
	date: "$Date: 2006-01-22 18:25:44 -0800 (Sun, 22 Jan 2006) $"
	revision: "$Revision: 56675 $"

class interface
	DATABASE_ALL_TYPES [G -> DATABASE create default_create end]

create 
	make

feature -- Initialization

	accommodate (n: INTEGER_32)
			-- Reallocate table with enough space for `n' items;
			-- keep all current items.
			-- (from HASH_TABLE)
		require -- from HASH_TABLE
			n >= 0
		ensure -- from HASH_TABLE
			count_not_changed: count = old count
			slot_count_same_as_count: used_slot_count = count
			breathing_space: count < capacity * initial_occupation

	make

	ht_make (n: INTEGER_32)
			-- Allocate hash table for at least `n' items.
			-- The table will be resized automatically
			-- if more than `n' items are inserted.
			-- (from HASH_TABLE)
		ensure -- from HASH_TABLE
			breathing_space: n < capacity * initial_occupation
			minimum_space: minimum_capacity < capacity * initial_occupation
			more_than_minimum: capacity >= minimum_capacity
			no_status: not special_status
	
feature -- Access

	bit_type: INTEGER_32 is 8
			-- (from INTERNAL)

	boolean_field (i: INTEGER_32; object: ANY): BOOLEAN
			-- Boolean value of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			boolean_field: field_type (i, object) = boolean_type

	boolean_type: INTEGER_32 is 3
			-- (from INTERNAL)

	character_32_type: INTEGER_32 is 12
			-- Was declared in INTERNAL as synonym of Wide_character_type.
			-- (from INTERNAL)

	character_8_type: INTEGER_32 is 2
			-- Was declared in INTERNAL as synonym of Character_type.
			-- (from INTERNAL)

	character_field (i: INTEGER_32; object: ANY): CHARACTER_8
			-- Character value of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			character_field: field_type (i, object) = character_type

	character_type: INTEGER_32 is 2
			-- Was declared in INTERNAL as synonym of Character_8_type.
			-- (from INTERNAL)

	class_name (object: ANY): STRING_8
			-- Name of the class associated with `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void

	class_name_of_type (type_id: INTEGER_32): STRING_8
			-- Name of class associated with dynamic type `type_id'.
			-- (from INTERNAL)
		require -- from INTERNAL
			type_id_nonnegative: type_id >= 0

	current_keys: ARRAY [INTEGER_32]
			-- New array containing actually used keys, from 1 to count
			-- (from HASH_TABLE)
		ensure -- from HASH_TABLE
			good_count: Result.count = count

	cursor: CURSOR
			-- Current cursor position
			-- (from HASH_TABLE)
		ensure -- from HASH_TABLE
			cursor_not_void: Result /= Void

	db_type (object: ANY): DB_TYPE
			-- DB_TYPE instance associated to `object'
		ensure
			result_value: Result = item (dynamic_type (object))

	double_field (i: INTEGER_32; object: ANY): REAL_64
			-- Double precision value of `i'-th field of `object'
			-- Was declared in INTERNAL as synonym of real_64_field.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			real_64_field: field_type (i, object) = real_64_type

	double_type: INTEGER_32 is 6
			-- Was declared in INTERNAL as synonym of Real_64_type.
			-- (from INTERNAL)

	dynamic_type (object: ANY): INTEGER_32
			-- Dynamic type of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
		ensure -- from INTERNAL
			dynamic_type_nonnegative: Result >= 0

	expanded_field_type (i: INTEGER_32; object: ANY): STRING_8
			-- Class name associated with the `i'-th
			-- expanded field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			is_expanded: field_type (i, object) = expanded_type
		ensure -- from INTERNAL
			result_exists: Result /= Void

	expanded_type: INTEGER_32 is 7
			-- (from INTERNAL)

	field (i: INTEGER_32; object: ANY): ANY
			-- Object attached to the `i'-th field of `object'
			-- (directly or through a reference)
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			not_special: not is_special (object)

	field_name (i: INTEGER_32; object: ANY): STRING_8
			-- Name of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			not_special: not is_special (object)
		ensure -- from INTERNAL
			result_exists: Result /= Void

	field_name_of_type (i: INTEGER_32; type_id: INTEGER_32): STRING_8
			-- Name of `i'-th field of dynamic type `type_id'.
			-- (from INTERNAL)
		require -- from INTERNAL
			type_id_nonnegative: type_id >= 0
			index_large_enough: i >= 1
			index_small_enought: i <= field_count_of_type (type_id)

	field_offset (i: INTEGER_32; object: ANY): INTEGER_32
			-- Offset of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			not_special: not is_special (object)

	field_static_type_of_type (i: INTEGER_32; type_id: INTEGER_32): INTEGER_32
			-- Static type of declared `i'-th field of dynamic type `type_id'
			-- (from INTERNAL)
		require -- from INTERNAL
			type_id_nonnegative: type_id >= 0
			index_large_enough: i >= 1
			index_small_enough: i <= field_count_of_type (type_id)
		ensure -- from INTERNAL
			field_type_nonnegative: Result >= 0

	field_type (i: INTEGER_32; object: ANY): INTEGER_32
			-- Abstract type of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
		ensure -- from INTERNAL
			field_type_nonnegative: Result >= 0

	field_type_of_type (i: INTEGER_32; type_id: INTEGER_32): INTEGER_32
			-- Abstract type of `i'-th field of dynamic type `type_id'
			-- (from INTERNAL)
		require -- from INTERNAL
			type_id_nonnegative: type_id >= 0
			index_large_enough: i >= 1
			index_small_enough: i <= field_count_of_type (type_id)
		ensure -- from INTERNAL
			field_type_nonnegative: Result >= 0

	found_item: DB_TYPE
			-- Item, if any, yielded by last search operation
			-- (from HASH_TABLE)

	generating_type: STRING_8
			-- Name of current object's generating type
			-- (type of which it is a direct instance)
			-- (from ANY)

	generator: STRING_8
			-- Name of current object's generating class
			-- (base class of the type of which it is a direct instance)
			-- (from ANY)

	generic_count (obj: ANY): INTEGER_32
			-- Number of generic parameter in `obj'.
			-- (from INTERNAL)
		require -- from INTERNAL
			obj_not_void: obj /= Void

	generic_count_of_type (type_id: INTEGER_32): INTEGER_32
			-- Number of generic parameter in `type_id'.
			-- (from INTERNAL)
		require -- from INTERNAL
			type_id_nonnegative: type_id >= 0

	generic_dynamic_type (object: ANY; i: INTEGER_32): INTEGER_32
			-- Dynamic type of generic parameter of `object' at
			-- position `i'.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			object_generic: generic_count (object) > 0
			i_valid: i > 0 and i <= generic_count (object)
		ensure -- from INTERNAL
			dynamic_type_nonnegative: Result >= 0

	generic_dynamic_type_of_type (type_id: INTEGER_32; i: INTEGER_32): INTEGER_32
			-- Dynamic type of generic parameter of `type_id' at position `i'.
			-- (from INTERNAL)
		require -- from INTERNAL
			type_id_nonnegative: type_id >= 0
			type_id_generic: generic_count_of_type (type_id) > 0
			i_valid: i > 0 and i <= generic_count_of_type (type_id)
		ensure -- from INTERNAL
			dynamic_type_nonnegative: Result >= 0

	has (key: INTEGER_32): BOOLEAN
			-- Is there an item in the table with key `key'?
			-- (from HASH_TABLE)
		ensure then -- from HASH_TABLE
			default_case: (key = computed_default_key) implies (Result = has_default)

	has_item (v: DB_TYPE): BOOLEAN
			-- Does structure include `v'?
			-- (Reference or object equality,
			-- based on object_comparison.)
			-- (from HASH_TABLE)
		ensure -- from CONTAINER
			not_found_in_empty: Result implies not is_empty

	integer_16_field (i: INTEGER_32; object: ANY): INTEGER_16
			-- INTEGER_16 value of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			integer_16_field: field_type (i, object) = integer_16_type

	integer_16_type: INTEGER_32 is 10
			-- (from INTERNAL)

	integer_32_field (i: INTEGER_32; object: ANY): INTEGER_32
			-- INTEGER_32 value of `i'-th field of `object'
			-- Was declared in INTERNAL as synonym of integer_field.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			integer_32_field: field_type (i, object) = integer_32_type

	integer_32_type: INTEGER_32 is 4
			-- Was declared in INTERNAL as synonym of Integer_type.
			-- (from INTERNAL)

	integer_64_field (i: INTEGER_32; object: ANY): INTEGER_64
			-- INTEGER_64 value of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			integer_64_field: field_type (i, object) = integer_64_type

	integer_64_type: INTEGER_32 is 11
			-- (from INTERNAL)

	integer_8_field (i: INTEGER_32; object: ANY): INTEGER_8
			-- INTEGER_8 value of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			integer_8_field: field_type (i, object) = integer_8_type

	integer_8_type: INTEGER_32 is 9
			-- (from INTERNAL)

	integer_field (i: INTEGER_32; object: ANY): INTEGER_32
			-- INTEGER_32 value of `i'-th field of `object'
			-- Was declared in INTERNAL as synonym of integer_32_field.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			integer_32_field: field_type (i, object) = integer_32_type

	integer_type: INTEGER_32 is 4
			-- Was declared in INTERNAL as synonym of Integer_32_type.
			-- (from INTERNAL)

	item alias "[]" (key: INTEGER_32): DB_TYPE assign put
			-- Item associated with `key', if present
			-- otherwise default value of type `G'
			-- Was declared in HASH_TABLE as synonym of infix "@".
			-- (from HASH_TABLE)
		require -- from TABLE
			valid_key: valid_key (key)
		ensure then -- from HASH_TABLE
			default_value_if_not_present: (not (has (key))) implies (Result = computed_default_value)

	item_for_iteration: DB_TYPE
			-- Element at current iteration position
			-- (from HASH_TABLE)
		require -- from HASH_TABLE
			not_off: not off

	key_for_iteration: INTEGER_32
			-- Key at current iteration position
			-- (from HASH_TABLE)
		require -- from HASH_TABLE
			not_off: not off
		ensure -- from HASH_TABLE
			at_iteration_position: Result = key_at (iteration_position)

	max_predefined_type: INTEGER_32 is 16
			-- (from INTERNAL)

	natural_16_field (i: INTEGER_32; object: ANY): NATURAL_16
			-- NATURAL_16 value of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			natural_16_field: field_type (i, object) = natural_16_type

	natural_16_type: INTEGER_32 is 14
			-- (from INTERNAL)

	natural_32_field (i: INTEGER_32; object: ANY): NATURAL_32
			-- NATURAL_32 value of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			natural_32_field: field_type (i, object) = natural_32_type

	natural_32_type: INTEGER_32 is 15
			-- (from INTERNAL)

	natural_64_field (i: INTEGER_32; object: ANY): NATURAL_64
			-- NATURAL_64 value of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			natural_64_field: field_type (i, object) = natural_64_type

	natural_64_type: INTEGER_32 is 16
			-- (from INTERNAL)

	natural_8_field (i: INTEGER_32; object: ANY): NATURAL_8
			-- NATURAL_8 value of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			natural_8_field: field_type (i, object) = natural_8_type

	natural_8_type: INTEGER_32 is 13
			-- (from INTERNAL)

	none_type: INTEGER_32 is -2
			-- Type ID representation for NONE.
			-- (from INTERNAL)

	pointer_field (i: INTEGER_32; object: ANY): POINTER
			-- Pointer value of `i'-th field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			pointer_field: field_type (i, object) = pointer_type

	pointer_type: INTEGER_32 is 0
			-- (from INTERNAL)

	real_32_field (i: INTEGER_32; object: ANY): REAL_32
			-- Real value of `i'-th field of `object'
			-- Was declared in INTERNAL as synonym of real_field.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			real_32_field: field_type (i, object) = real_32_type

	real_32_type: INTEGER_32 is 5
			-- Was declared in INTERNAL as synonym of Real_type.
			-- (from INTERNAL)

	real_64_field (i: INTEGER_32; object: ANY): REAL_64
			-- Double precision value of `i'-th field of `object'
			-- Was declared in INTERNAL as synonym of double_field.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			real_64_field: field_type (i, object) = real_64_type

	real_64_type: INTEGER_32 is 6
			-- Was declared in INTERNAL as synonym of Double_type.
			-- (from INTERNAL)

	real_field (i: INTEGER_32; object: ANY): REAL_32
			-- Real value of `i'-th field of `object'
			-- Was declared in INTERNAL as synonym of real_32_field.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			real_32_field: field_type (i, object) = real_32_type

	real_type: INTEGER_32 is 5
			-- Was declared in INTERNAL as synonym of Real_32_type.
			-- (from INTERNAL)

	reference_type: INTEGER_32 is 1
			-- (from INTERNAL)

	type_name (object: ANY): STRING_8
			-- Name of `object''s generating type (type of which `object'
			-- is a direct instance).
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void

	type_name_of_type (type_id: INTEGER_32): STRING_8
			-- Name of `type_id''s generating type (type of which `type_id'
			-- is a direct instance).
			-- (from INTERNAL)
		require -- from INTERNAL
			type_id_nonnegative: type_id >= 0

	wide_character_type: INTEGER_32 is 12
			-- Was declared in INTERNAL as synonym of Character_32_type.
			-- (from INTERNAL)

	infix "@" (key: INTEGER_32): DB_TYPE assign put
			-- Item associated with `key', if present
			-- otherwise default value of type `G'
			-- Was declared in HASH_TABLE as synonym of item.
			-- (from HASH_TABLE)
		require -- from TABLE
			valid_key: valid_key (key)
		ensure then -- from HASH_TABLE
			default_value_if_not_present: (not (has (key))) implies (Result = computed_default_value)
	
feature -- Measurement

	bit_size (i: INTEGER_32; object: ANY): INTEGER_32
			-- Size (in bit) of the `i'-th bit field of `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			is_bit: field_type (i, object) = bit_type
		ensure -- from INTERNAL
			positive_result: Result > 0

	capacity: INTEGER_32
			-- Number of items that may be stored.
			-- (from HASH_TABLE)

	count: INTEGER_32
			-- Number of items in table
			-- (from HASH_TABLE)

	field_count (object: ANY): INTEGER_32
			-- Number of logical fields in `object'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void

	field_count_of_type (type_id: INTEGER_32): INTEGER_32
			-- Number of logical fields in dynamic type `type_id'.
			-- (from INTERNAL)
		require -- from INTERNAL
			type_id_nonnegative: type_id >= 0

	occurrences (v: DB_TYPE): INTEGER_32
			-- Number of table items equal to `v'.
			-- (from HASH_TABLE)
		ensure -- from BAG
			non_negative_occurrences: Result >= 0

	physical_size (object: ANY): INTEGER_32
			-- Space occupied by `object' in bytes
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
	
feature -- Comparison

	frozen deep_equal (some: ANY; other: like arg #1): BOOLEAN
			-- Are `some' and `other' either both void
			-- or attached to isomorphic object structures?
			-- (from ANY)
		ensure -- from ANY
			shallow_implies_deep: standard_equal (some, other) implies Result
			both_or_none_void: (some = Void) implies (Result = (other = Void))
			same_type: (Result and (some /= Void)) implies some.same_type (other)
			symmetric: Result implies deep_equal (other, some)

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

	is_equal (other: like Current): BOOLEAN
			-- Does table contain the same information as `other'?
			-- (from HASH_TABLE)
		require -- from ANY
			other_not_void: other /= Void
		ensure -- from ANY
			symmetric: Result implies other.is_equal (Current)
			consistent: standard_is_equal (other) implies Result

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

	frozen standard_is_equal (other: like Current): 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
		ensure -- from ANY
			same_type: Result implies same_type (other)
			symmetric: Result implies other.standard_is_equal (Current)
	
feature -- Status report

	after: BOOLEAN
			-- Is cursor past last item?
			-- Was declared in HASH_TABLE as synonym of off.
			-- (from HASH_TABLE)
		ensure -- from HASH_TABLE
			definition: Result = ((not has_default and (iteration_position >= capacity)) or (has_default and (iteration_position = (capacity + 1))))

	changeable_comparison_criterion: BOOLEAN
			-- May object_comparison be changed?
			-- (Answer: yes by default.)
			-- (from CONTAINER)

	conflict: BOOLEAN
			-- Did last operation cause a conflict?
			-- (from HASH_TABLE)

	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

	extendible: BOOLEAN is True
			-- May new items be added? (Answer: yes.)
			-- (from HASH_TABLE)

	found: BOOLEAN
			-- Did last operation find the item sought?
			-- (from HASH_TABLE)

	full: BOOLEAN is False
			-- Is structure filled to capacity? (Answer: no.)
			-- (from HASH_TABLE)

	inserted: BOOLEAN
			-- Did last operation insert an item?
			-- (from HASH_TABLE)

	is_empty: BOOLEAN
			-- Is structure empty?
			-- (from FINITE)
		require -- from  CONTAINER
			True

	is_inserted (v: DB_TYPE): BOOLEAN
			-- Has `v' been inserted by the most recent insertion?
			-- (By default, the value returned is equivalent to calling 
			-- `has (v)'. However, descendants might be able to provide more
			-- efficient implementations.)
			-- (from COLLECTION)

	is_marked (obj: ANY): BOOLEAN
			-- Is `obj' marked?
			-- (from INTERNAL)
		require -- from INTERNAL
			object_exists: obj /= Void

	is_pre_ecma_mapping_disabled: BOOLEAN
			-- Are we mapping old names to new ECMA names?
			-- False means. mapping STRING to STRING_8, INTEGER to INTEGER_32,...
			-- (from INTERNAL_HELPER)

	is_registered (object: ANY): BOOLEAN
			-- Is `object' type registered?
		require
			object_not_void: object /= Void
		ensure
			result_value: Result = has (dynamic_type (object))

	is_special (object: ANY): BOOLEAN
			-- Is `object' a special object?
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void

	is_special_any_type (type_id: INTEGER_32): BOOLEAN
			-- Is type represented by `type_id' represent
			-- a SPECIAL [XX] where XX is a reference type.
			-- (from INTERNAL)
		require -- from INTERNAL
			type_id_nonnegative: type_id >= 0

	is_special_type (type_id: INTEGER_32): BOOLEAN
			-- Is type represented by `type_id' represent
			-- a SPECIAL [XX] where XX is a reference type
			-- or a basic type.
			-- (from INTERNAL)
		require -- from INTERNAL
			type_id_nonnegative: type_id >= 0

	is_tuple (object: ANY): BOOLEAN
			-- Is `object' a TUPLE object?
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void

	is_tuple_type (type_id: INTEGER_32): BOOLEAN
			-- Is type represented by `type_id' represent a TUPLE?
			-- (from INTERNAL)
		require -- from INTERNAL
			type_id_nonnegative: type_id >= 0

	is_valid_type_string (s: STRING_8): BOOLEAN
			-- Is `s' a valid string representation for a TYPE.
			-- (from INTERNAL_HELPER)
		require -- from INTERNAL_HELPER
			s_not_void: s /= Void
			s_not_empty: not s.is_empty

	mapped_type (a_type: STRING_8): STRING_8
			-- If is_pre_ecma_mapping_disabled `a_type', otherwise
			-- the mapped typed.
			-- (from INTERNAL_HELPER)
		require -- from INTERNAL_HELPER
			a_type_not_void: a_type /= Void
		ensure -- from INTERNAL_HELPER
			mapped_type_not_void: Result /= Void

	not_found: BOOLEAN
			-- Did last operation fail to find the item sought?
			-- (from HASH_TABLE)

	object_comparison: BOOLEAN
			-- Must search operations use equal rather than `='
			-- for comparing references? (Default: no, use `='.)
			-- (from CONTAINER)

	off: BOOLEAN
			-- Is cursor past last item?
			-- Was declared in HASH_TABLE as synonym of after.
			-- (from HASH_TABLE)
		ensure -- from HASH_TABLE
			definition: Result = ((not has_default and (iteration_position >= capacity)) or (has_default and (iteration_position = (capacity + 1))))

	prunable: BOOLEAN
			-- May items be removed? (Answer: yes.)
			-- (from HASH_TABLE)

	removed: BOOLEAN
			-- Did last operation remove an item?
			-- (from HASH_TABLE)

	replaced: BOOLEAN
			-- Did last operation replace an item?
			-- (from HASH_TABLE)

	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
		ensure -- from ANY
			definition: Result = (conforms_to (other) and other.conforms_to (Current))

	valid_cursor (c: CURSOR): BOOLEAN
			-- Can cursor be moved to position `c'?
			-- (from HASH_TABLE)
		require -- from HASH_TABLE
			c_not_void: c /= Void

	valid_key (k: INTEGER_32): BOOLEAN
			-- Is `k' a valid key?
			-- (Answer: always yes for hash tables in this version)
			-- (from HASH_TABLE)
		require -- from  TABLE
			True
		ensure then -- from HASH_TABLE
			Result
	
feature -- Status setting

	compare_objects
			-- Ensure that future search operations will use equal
			-- rather than `=' for comparing references.
			-- (from CONTAINER)
		require -- from CONTAINER
			changeable_comparison_criterion: changeable_comparison_criterion
		ensure -- from CONTAINER
			object_comparison

	compare_references
			-- Ensure that future search operations will use `='
			-- rather than equal for comparing references.
			-- (from CONTAINER)
		require -- from CONTAINER
			changeable_comparison_criterion: changeable_comparison_criterion
		ensure -- from CONTAINER
			reference_comparison: not object_comparison

	disable_pre_ecma_mapping
			-- Set is_pre_ecma_mapping_disabled to True.
			-- (from INTERNAL_HELPER)
		ensure -- from INTERNAL_HELPER
			is_pre_ecma_mapping_disabled_set: is_pre_ecma_mapping_disabled

	enable_pre_ecma_mapping
			-- Set is_pre_ecma_mapping_disabled to False.
			-- (from INTERNAL_HELPER)
		ensure -- from INTERNAL_HELPER
			is_pre_ecma_mapping_disabled_set: not is_pre_ecma_mapping_disabled
	
feature -- Cursor movement

	forth
			-- Advance cursor to next occupied position,
			-- or off if no such position remains.
			-- (from HASH_TABLE)
		require -- from HASH_TABLE
			not_off: not off

	go_to (c: CURSOR)
			-- Move to position `c'.
			-- (from HASH_TABLE)
		require -- from HASH_TABLE
			c_not_void: c /= Void
			valid_cursor: valid_cursor (c)

	search (key: INTEGER_32)
			-- Search for item of key `key'.
			-- If found, set found to true, and set
			-- found_item to item associated with `key'.
			-- (from HASH_TABLE)
		ensure -- from HASH_TABLE
			found_or_not_found: found or not_found
			item_if_found: found implies (found_item = content.item (position))

	start
			-- Bring cursor to first position.
			-- (from HASH_TABLE)
	
feature -- Element change

	extend (new: DB_TYPE; key: INTEGER_32)
			-- Assuming there is no item of key `key',
			-- insert `new' with `key'.
			-- Set inserted.
			--
			-- To choose between various insert/replace procedures,
			-- see `instructions' in the Indexing clause.
			-- (from HASH_TABLE)
		require -- from HASH_TABLE
			not_present: not has (key)
		ensure -- from HASH_TABLE
			inserted: inserted
			insertion_done: item (key) = new
			one_more: count = old count + 1
			same_slot_count_or_one_more_unless_reallocated: (used_slot_count = old used_slot_count) or (used_slot_count = old used_slot_count + 1) or (used_slot_count = count)
			default_property: has_default = ((key = computed_default_key) or (old has_default))

	fill (other: CONTAINER [DB_TYPE])
			-- Fill with as many items of `other' as possible.
			-- The representations of `other' and current structure
			-- need not be the same.
			-- (from COLLECTION)
		require -- from COLLECTION
			other_not_void: other /= Void
			extendible: extendible

	force (new: DB_TYPE; key: INTEGER_32)
			-- Update table so that `new' will be the item associated
			-- with `key'.
			-- If there was an item for that key, set found
			-- and set found_item to that item.
			-- If there was none, set not_found and set
			-- found_item to the default value.
			--
			-- To choose between various insert/replace procedures,
			-- see `instructions' in the Indexing clause.
			-- (from HASH_TABLE)
		require else -- from HASH_TABLE
			True
		ensure then -- from HASH_TABLE
			insertion_done: item (key) = new
			now_present: has (key)
			found_or_not_found: found or not_found
			not_found_if_was_not_present: not_found = not (old has (key))
			same_count_or_one_more: (count = old count) or (count = old count + 1)
			same_slot_count_or_one_more_unless_reallocated: (used_slot_count = old used_slot_count) or (used_slot_count = old used_slot_count + 1) or (used_slot_count = count)
			found_item_is_old_item: found implies (found_item = old (item (key)))
			default_value_if_not_found: not_found implies (found_item = computed_default_value)
			default_property: has_default = ((key = computed_default_key) or ((key /= computed_default_key) and (old has_default)))

	merge (other: HASH_TABLE [DB_TYPE, INTEGER_32])
			-- Merge `other' into Current. If `other' has some elements
			-- with same key as in `Current', replace them by one from
			-- `other'.
			-- (from HASH_TABLE)
		require -- from HASH_TABLE
			other_not_void: other /= Void
		ensure -- from HASH_TABLE
			inserted: other.current_keys.linear_representation.for_all (agent has)

	put (new: DB_TYPE; key: INTEGER_32)
			-- Insert `new' with `key' if there is no other item
			-- associated with the same key.
			-- Set inserted if and only if an insertion has
			-- been made (i.e. `key' was not present).
			-- If so, set position to the insertion position.
			-- If not, set conflict.
			-- In either case, set found_item to the item
			-- now associated with `key' (previous item if
			-- there was one, `new' otherwise).
			--
			-- To choose between various insert/replace procedures,
			-- see `instructions' in the Indexing clause.
			-- (from HASH_TABLE)
		require -- from TABLE
			valid_key: valid_key (key)
		ensure then -- from HASH_TABLE
			conflict_or_inserted: conflict or inserted
			insertion_done: inserted implies item (key) = new
			now_present: inserted implies has (key)
			one_more_if_inserted: inserted implies (count = old count + 1)
			unchanged_if_conflict: conflict implies (count = old count)
			same_item_if_conflict: conflict implies (item (key) = old (item (key)))
			slot_count_unchanged_if_conflict: conflict implies (used_slot_count = old used_slot_count)
			found_item_associated_with_key: found_item = item (key)
			new_item_if_inserted: inserted implies (found_item = new)
			old_item_if_conflict: conflict implies (found_item = old (item (key)))
			default_property: has_default = ((inserted and (key = computed_default_key)) or ((conflict or (key /= computed_default_key)) and (old has_default)))

	register_all
			-- Register all available types.
		require
			count = 0
		ensure
			positive_count: count > 0

	register_type (type: DB_TYPE)
			-- Register a new `type'.
		require
			type_not_void: type /= Void
			type_not_register: not has_item (type)
		ensure
			incremented_count: count = old count + 1

	replace (new: DB_TYPE; key: INTEGER_32)
			-- Replace item at `key', if present,
			-- with `new'; do not change associated key.
			-- Set replaced if and only if a replacement has been made
			-- (i.e. `key' was present); otherwise set not_found.
			-- Set found_item to the item previously associated
			-- with `key' (default value if there was none).
			--
			-- To choose between various insert/replace procedures,
			-- see `instructions' in the Indexing clause.
			-- (from HASH_TABLE)
		ensure -- from HASH_TABLE
			replaced_or_not_found: replaced or not_found
			insertion_done: replaced implies item (key) = new
			no_change_if_not_found: not_found implies item (key) = old (item (key))
			found_item_is_old_item: found_item = old (item (key))

	replace_key (new_key: INTEGER_32; old_key: INTEGER_32)
			-- If there is an item of key `old_key' and no item of key
			-- `new_key', replace the former's key by `new_key',
			-- set replaced, and set found_item to the item
			-- previously associated with `old_key'.
			-- Otherwise set not_found or conflict respectively.
			-- If conflict, set found_item to the item previously
			-- associated with `new_key'.
			--
			-- To choose between various insert/replace procedures,
			-- see `instructions' in the Indexing clause.
			-- (from HASH_TABLE)
		ensure -- from HASH_TABLE
			same_count: count = old count
			replaced_or_conflict_or_not_found: replaced or conflict or not_found
			old_absent: (replaced and not equal (new_key, old_key)) implies (not has (old_key))
			new_present: (replaced or conflict) = has (new_key)
			new_item: replaced implies (item (new_key) = old (item (old_key)))
			not_found_implies_no_old_key: not_found implies old (not has (old_key))
			conflict_iff_already_present: conflict = old (has (new_key))
			not_inserted_if_conflict: conflict implies (item (new_key) = old (item (new_key)))
			default_property: has_default = ((new_key = computed_default_key) or ((new_key /= computed_default_key) and (old has_default)))

	set_boolean_field (i: INTEGER_32; object: ANY; value: BOOLEAN)
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			boolean_field: field_type (i, object) = boolean_type

	set_character_field (i: INTEGER_32; object: ANY; value: CHARACTER_8)
			-- Set character value of `i'-th field of `object' to `value'
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			character_field: field_type (i, object) = character_type

	set_double_field (i: INTEGER_32; object: ANY; value: REAL_64)
			-- Was declared in INTERNAL as synonym of set_real_64_field.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			real_64_field: field_type (i, object) = real_64_type

	set_integer_16_field (i: INTEGER_32; object: ANY; value: INTEGER_16)
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			integer_16_field: field_type (i, object) = integer_16_type

	set_integer_32_field (i: INTEGER_32; object: ANY; value: INTEGER_32)
			-- Was declared in INTERNAL as synonym of set_integer_field.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			integer_32_field: field_type (i, object) = integer_32_type

	set_integer_64_field (i: INTEGER_32; object: ANY; value: INTEGER_64)
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			integer_64_field: field_type (i, object) = integer_64_type

	set_integer_8_field (i: INTEGER_32; object: ANY; value: INTEGER_8)
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			integer_8_field: field_type (i, object) = integer_8_type

	set_integer_field (i: INTEGER_32; object: ANY; value: INTEGER_32)
			-- Was declared in INTERNAL as synonym of set_integer_32_field.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			integer_32_field: field_type (i, object) = integer_32_type

	set_natural_16_field (i: INTEGER_32; object: ANY; value: NATURAL_16)
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			natural_16_field: field_type (i, object) = natural_16_type

	set_natural_32_field (i: INTEGER_32; object: ANY; value: NATURAL_32)
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			natural_32_field: field_type (i, object) = natural_32_type

	set_natural_64_field (i: INTEGER_32; object: ANY; value: NATURAL_64)
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			natural_64_field: field_type (i, object) = natural_64_type

	set_natural_8_field (i: INTEGER_32; object: ANY; value: NATURAL_8)
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			natural_8_field: field_type (i, object) = natural_8_type

	set_pointer_field (i: INTEGER_32; object: ANY; value: POINTER)
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			pointer_field: field_type (i, object) = pointer_type

	set_real_32_field (i: INTEGER_32; object: ANY; value: REAL_32)
			-- Was declared in INTERNAL as synonym of set_real_field.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			real_32_field: field_type (i, object) = real_32_type

	set_real_64_field (i: INTEGER_32; object: ANY; value: REAL_64)
			-- Was declared in INTERNAL as synonym of set_double_field.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			real_64_field: field_type (i, object) = real_64_type

	set_real_field (i: INTEGER_32; object: ANY; value: REAL_32)
			-- Was declared in INTERNAL as synonym of set_real_32_field.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			real_32_field: field_type (i, object) = real_32_type

	set_reference_field (i: INTEGER_32; object: ANY; value: ANY)
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			index_large_enough: i >= 1
			index_small_enough: i <= field_count (object)
			reference_field: field_type (i, object) = reference_type
			value_conforms_to_field_static_type: value /= Void implies type_conforms_to (dynamic_type (value), field_static_type_of_type (i, dynamic_type (object)))
	
feature -- Removal

	clear_all
			-- Reset all items to default values; reset status.
			-- (from HASH_TABLE)
		require -- from COLLECTION
			prunable: prunable
		ensure -- from COLLECTION
			wiped_out: is_empty
		ensure then -- from HASH_TABLE
			position_equal_to_zero: position = 0
			count_equal_to_zero: count = 0
			used_slot_count_equal_to_zero: used_slot_count = 0
			has_default_set: not has_default
			no_status: not special_status

	remove (key: INTEGER_32)
			-- Remove item associated with `key', if present.
			-- Set removed if and only if an item has been
			-- removed (i.e. `key' was present);
			-- if so, set position to index of removed element.
			-- If not, set not_found.
			-- Reset found_item to its default value if removed.
			-- (from HASH_TABLE)
		ensure -- from HASH_TABLE
			removed_or_not_found: removed or not_found
			not_present: not has (key)
			one_less: found implies (count = old count - 1)
			same_slot_count: used_slot_count = old used_slot_count
			default_case: (key = computed_default_key) implies (not has_default)
			non_default_case: (key /= computed_default_key) implies (has_default = old has_default)
	
feature -- Conversion

	linear_representation: ARRAYED_LIST [DB_TYPE]
			-- Representation as a linear structure
			-- (from HASH_TABLE)
		require -- from  CONTAINER
			True
		ensure then -- from HASH_TABLE
			result_exists: Result /= Void
			good_count: Result.count = count
	
feature -- Duplication

	copy (other: like Current)
			-- Re-initialize from `other'.
			-- (from HASH_TABLE)
		require -- from ANY
			other_not_void: other /= Void
			type_identity: same_type (other)
		ensure -- from ANY
			is_equal: is_equal (other)

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

	frozen deep_twin: like Current
			-- New object structure recursively duplicated from Current.
			-- (from ANY)
		ensure -- from ANY
			deep_equal: deep_equal (Current, Result)

	frozen standard_copy (other: like Current)
			-- 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)
		ensure -- from ANY
			is_standard_equal: standard_is_equal (other)

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

	frozen twin: like Current
			-- New object equal to `Current'
			-- twin calls copy; to change copying/twining semantics, redefine copy.
			-- (from ANY)
		ensure -- from ANY
			twin_not_void: Result /= Void
			is_equal: Result.is_equal (Current)
	
feature -- Basic operations

	frozen default: like Current
			-- Default value of object's type
			-- (from ANY)

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

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

	frozen do_nothing
			-- Execute a null action.
			-- (from ANY)
	
feature -- Conformance

	is_instance_of (object: ANY; type_id: INTEGER_32): BOOLEAN
			-- Is `object' an instance of type `type_id'?
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: object /= Void
			type_id_nonnegative: type_id >= 0

	type_conforms_to (type1, type2: INTEGER_32): BOOLEAN
			-- Does `type1' conform to `type2'?
			-- (from INTERNAL)
		require -- from INTERNAL
			type1_nonnegative: type1 >= 0
			type2_nonnegative: type2 >= 0
	
feature -- Creation

	dynamic_type_from_string (class_type: STRING_8): INTEGER_32
			-- Dynamic type corresponding to `class_type'.
			-- If no dynamic type available, returns -1.
			-- (from INTERNAL)
		require -- from INTERNAL
			class_type_not_void: class_type /= Void
			class_type_not_empty: not class_type.is_empty
			is_valid_type_string: is_valid_type_string (class_type)
		ensure -- from INTERNAL
			dynamic_type_from_string_valid: Result = -1 or Result = none_type or Result >= 0

	new_instance_of (type_id: INTEGER_32): ANY
			-- New instance of dynamic `type_id'.
			-- Note: returned object is not initialized and may
			-- hence violate its invariant.
			-- `type_id' cannot represent a SPECIAL type, use
			-- new_special_any_instance instead.
			-- (from INTERNAL)
		require -- from INTERNAL
			type_id_nonnegative: type_id >= 0
			not_special_type: not is_special_type (type_id)
		ensure -- from INTERNAL
			not_special_type: not is_special (Result)
			dynamic_type_set: dynamic_type (Result) = type_id

	new_special_any_instance (type_id, count: INTEGER_32): SPECIAL [ANY]
			-- New instance of dynamic `type_id' that represents
			-- a SPECIAL with count element. To create a SPECIAL of
			-- basic type, use `SPECIAL'.
			-- (from INTERNAL)
		require -- from INTERNAL
			count_valid: count >= 0
			type_id_nonnegative: type_id >= 0
			special_type: is_special_any_type (type_id)
		ensure -- from INTERNAL
			special_type: is_special (Result)
			dynamic_type_set: dynamic_type (Result) = type_id
			count_set: Result.count = count
	
feature -- Marking

	lock_marking
			-- Get a lock on mark and unmark routine so that 2 threads cannot mark and
			-- unmark at the same time.
			-- (from INTERNAL)

	mark (obj: ANY)
			-- Mark object `obj'.
			-- To be thread safe, make sure to call this feature when you
			-- have the marking lock that you acquire using lock_marking.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: obj /= Void
			object_not_marked: not is_marked (obj)
		ensure -- from INTERNAL
			is_marked: is_marked (obj)

	unlock_marking
			-- Release a lock on mark and unmark, so that another thread can
			-- use mark and unmark.
			-- (from INTERNAL)

	unmark (obj: ANY)
			-- Unmark object `obj'.
			-- To be thread safe, make sure to call this feature when you
			-- have the marking lock that you acquire using lock_marking.
			-- (from INTERNAL)
		require -- from INTERNAL
			object_not_void: obj /= Void
			object_marked: is_marked (obj)
		ensure -- from INTERNAL
			is_not_marked: not is_marked (obj)
	
feature -- Output

	io: STD_FILES
			-- Handle to standard file setup
			-- (from ANY)

	out: STRING_8
			-- New string containing terse printable representation
			-- of current object
			-- Was declared in ANY as synonym of tagged_out.
			-- (from ANY)

	print (some: ANY)
			-- Write terse external representation of `some'
			-- on standard output.
			-- (from ANY)

	frozen tagged_out: STRING_8
			-- New string containing terse printable representation
			-- of current object
			-- Was declared in ANY as synonym of out.
			-- (from ANY)
	
feature -- Platform

	operating_environment: OPERATING_ENVIRONMENT
			-- Objects available from the operating system
			-- (from ANY)
	
feature -- Version

	compiler_version: INTEGER_32
			-- (from INTERNAL)
	
invariant
		-- from HASH_TABLE
	keys_not_void: keys /= Void
	content_not_void: content /= Void
	deleted_marks_not_void: deleted_marks /= Void
	keys_same_capacity_plus_one: keys.count = capacity + 1
	content_same_capacity_plus_one: content.count = capacity + 1
	deleted_same_capacity: deleted_marks.count = capacity + 1
	valid_iteration_position: off or truly_occupied (iteration_position)
	control_non_negative: control >= 0
	special_status: special_status = (conflict or inserted or replaced or removed or found or not_found)
	max_occupation_meaningful: (max_occupation > 0) and (max_occupation < 1)
	initial_occupation_meaningful: (initial_occupation > 0) and (initial_occupation < 1)
	sized_generously_enough: initial_occupation < max_occupation
	count_big_enough: 0 <= count
	count_small_enough: count <= capacity
	breathing_space: count <= capacity * max_occupation
	count_no_more_than_slot_count: count <= used_slot_count
	slot_count_big_enough: 0 <= count
	slot_count_small_enough: used_slot_count <= capacity

		-- from FINITE
	empty_definition: is_empty = (count = 0)
	non_negative_count: count >= 0

		-- from ANY
	reflexive_equality: standard_is_equal (Current)
	reflexive_conformance: conforms_to (Current)

indexing
	copyright: "Copyright (c) 1984-2006, Eiffel Software and others"
	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
	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 DATABASE_ALL_TYPES