Automatic generation produced by ISE Eiffel
note description: "To use with Gobo comparison facilities but implemented using agents instead." legal: "See notice at end of class." status: "See notice at end of class." date: "$Date: 2017-04-11 15:29:39 -0800 (Tue, 11 Apr 2017) $" revision: "$Revision: 100143 $" class interface AGENT_BASED_EQUALITY_TESTER [G -> ] create make (an_action: like action) -- Use an_action to compare two elements of type G. require an_action_not_void: an_action /= Void ensure action_set: action = an_action feature -- Access action: FUNCTION [G, G, BOOLEAN] -- Action performed to compare two non-void items. generating_type: TYPE [detachable AGENT_BASED_EQUALITY_TESTER [G]] -- Type of current object -- (type of which it is a direct instance) -- (from ANY) ensure -- from ANY generating_type_not_void: Result /= Void generator: STRING_8 -- Name of current object's generating class -- (base class of the type of which it is a direct instance) -- (from ANY) ensure -- from ANY generator_not_void: Result /= Void generator_not_empty: not Result.is_empty feature -- Comparison attached_less_than (u, v: attached G): BOOLEAN -- Is u considered less than v? require -- from KL_PART_COMPARATOR u_not_void: u /= Void v_not_void: v /= Void ensure -- from KL_PART_COMPARATOR asymmetric: Result implies not attached_less_than (v, u) 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) ensure -- from ANY instance_free: class 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) 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) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.is_equal (b)) frozen is_deep_equal alias "≡≡≡" (other: AGENT_BASED_EQUALITY_TESTER [G]): BOOLEAN -- Are Current and other attached to isomorphic object structures? -- (from ANY) require -- from ANY other_not_void: other /= Void 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) is_equal (other: like Current): BOOLEAN -- Is other attached to an object considered -- equal to current object? require -- from ANY other_not_void: other /= Void ensure -- from ANY symmetric: Result implies other ~ Current consistent: standard_is_equal (other) implies Result 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) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.standard_is_equal (b)) frozen standard_is_equal alias "≜" (other: AGENT_BASED_EQUALITY_TESTER [G]): 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 attached_greater_than (u, v: attached G): BOOLEAN -- Is u considered greater than v? -- (from KL_PART_COMPARATOR) require -- from KL_PART_COMPARATOR u_not_void: u /= Void v_not_void: v /= Void ensure -- from KL_PART_COMPARATOR definition: Result = attached_less_than (v, u) 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 detachable_greater_than (u, v: detachable G): BOOLEAN -- Is u considered greater than v? -- Void is considered less than non-Void values. -- (from KL_PART_COMPARATOR) ensure -- from KL_PART_COMPARATOR definition: Result = detachable_less_than (v, u) detachable_less_than (u, v: detachable G): BOOLEAN -- Is u considered less than v? -- Void is considered less than non-Void values. -- (from KL_PART_COMPARATOR) ensure -- from KL_PART_COMPARATOR asymmetric: Result implies not detachable_less_than (v, u) greater_than (u, v: G): BOOLEAN -- Is u considered greater than v? -- (from KL_PART_COMPARATOR) ensure -- from KL_PART_COMPARATOR definition: Result = less_than (v, u) less_than (u, v: G): BOOLEAN -- Is u considered less than v? -- (from KL_PART_COMPARATOR) ensure -- from KL_PART_COMPARATOR asymmetric: Result implies not less_than (v, u) 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)) test (v, u: G): BOOLEAN -- Are v and u considered equal? -- (Use `equal` by default.) require -- from EQUALITY_TESTER True require -- from KL_EQUALITY_TESTER True feature -- Duplication copy (other: AGENT_BASED_EQUALITY_TESTER [G]) -- 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) ensure -- from ANY is_equal: Current ~ other frozen deep_copy (other: AGENT_BASED_EQUALITY_TESTER [G]) -- 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: AGENT_BASED_EQUALITY_TESTER [G] -- New object structure recursively duplicated from Current. -- (from ANY) ensure -- from ANY deep_twin_not_void: Result /= Void deep_equal: deep_equal (Current, Result) frozen standard_copy (other: AGENT_BASED_EQUALITY_TESTER [G]) -- 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: AGENT_BASED_EQUALITY_TESTER [G] -- 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: AGENT_BASED_EQUALITY_TESTER [G] -- New object equal to Current -- `twin` calls `copy`; to change copying/twinning semantics, redefine `copy`. -- (from ANY) ensure -- from ANY twin_not_void: Result /= Void is_equal: Result ~ Current feature -- Basic operations frozen default: detachable AGENT_BASED_EQUALITY_TESTER [G] -- 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) ensure -- from ANY instance_free: class default_rescue -- Process exception for routines with no Rescue clause. -- (Default: do nothing.) -- (from ANY) frozen do_nothing -- Execute a null action. -- (from ANY) ensure -- from ANY instance_free: class feature -- Output Io: STD_FILES -- Handle to standard file setup -- (from ANY) ensure -- from ANY instance_free: class io_not_void: Result /= Void out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY out_not_void: Result /= Void print (o: detachable ANY) -- Write terse external representation of o -- on standard output. -- (from ANY) ensure -- from ANY instance_free: class frozen tagged_out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY tagged_out_not_void: Result /= Void feature -- Platform Operating_environment: OPERATING_ENVIRONMENT -- Objects available from the operating system -- (from ANY) ensure -- from ANY instance_free: class operating_environment_not_void: Result /= Void invariant action_not_void: action /= Void -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) note copyright: "Copyright (c) 1984-2017, 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 AGENT_BASED_EQUALITY_TESTER -- Generated by Eiffel Studio --
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