note description: "[ Constants used for exception handling. This class may be used as ancestor by classes needing its facilities. ]" library: "Free implementation of ELKS library" status: "See notice at end of class." legal: "See notice at end of class." date: "$Date: 2012-05-24 04:13:10 +0000 (Thu, 24 May 2012) $" revision: "$Revision: 91981 $" class interface EXCEP_CONST create default_create -- Process instances of classes with no creation clause. -- (Default: do nothing.) -- (from ANY) feature -- Access Check_instruction: INTEGER_32 = 7 -- Exception code for violated check Class_invariant: INTEGER_32 = 6 -- Exception code for violated class invariant Com_exception: INTEGER_32 = 28 -- Exception code for a COM error. Create_on_deferred: INTEGER_32 = 17 -- Create on deferred Developer_exception: INTEGER_32 = 24 -- Exception code for developer exception Dollar_applied_to_melted_feature: INTEGER_32 = 26 -- $ applied to melted feature Eiffel_runtime_fatal_error: INTEGER_32 = 25 -- Eiffel run-time fatal error Eiffel_runtime_panic: INTEGER_32 = 13 -- Eiffel run-time panic Exception_in_signal_handler: INTEGER_32 = 20 -- Exception in signal handler External_exception: INTEGER_32 = 18 -- Exception code for operating system error -- which does not set the errno variable -- (Unix-specific) Floating_point_exception: INTEGER_32 = 5 -- Exception code for floating point exception generating_type: TYPE [detachable EXCEP_CONST] -- 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 Incorrect_inspect_value: INTEGER_32 = 9 -- Exception code for inspect value which is not one -- of the inspect constants, if there is no Else_part Io_exception: INTEGER_32 = 21 -- Exception code for I/O error Loop_invariant: INTEGER_32 = 11 -- Exception code for violated loop invariant Loop_variant: INTEGER_32 = 10 -- Exception code for non-decreased loop variant No_more_memory: INTEGER_32 = 2 -- Exception code for failed memory allocation Number_of_codes: INTEGER_32 = 31 -- How many codes are there to represent exceptions? Old_exception: INTEGER_32 = 30 -- Old exception code. Operating_system_exception: INTEGER_32 = 22 -- Exception code for operating system error -- which sets the errno variable -- (Unix-specific) Out_of_memory: INTEGER_32 = 15 -- Out of memory (cannot be ignored) Postcondition: INTEGER_32 = 4 -- Exception code for violated postcondition Precondition: INTEGER_32 = 3 -- Exception code for violated precondition Rescue_exception: INTEGER_32 = 14 -- Exception code for exception in rescue clause Resumption_failed: INTEGER_32 = 16 -- Resumption failed (retry did not succeed) Retrieve_exception: INTEGER_32 = 23 -- Exception code for retrieval error -- may be raised by retrieved in IO_MEDIUM. Routine_failure: INTEGER_32 = 8 -- Exception code for failed routine Runtime_check_exception: INTEGER_32 = 29 -- Exception code for runtime check being violated. Runtime_io_exception: INTEGER_32 = 27 -- Exception code for I/O error raised by runtime functions -- such as store/retrieve, file access... Serialization_exception: INTEGER_32 = 31 -- Serialization exception code. Signal_exception: INTEGER_32 = 12 -- Exception code for operating system signal valid_code (c: INTEGER_32): BOOLEAN -- Is c a valid code to represent some kind of exceptions? Void_assigned_to_expanded: INTEGER_32 = 19 -- Exception code for assignment of void value -- to expanded entity Void_call_target: INTEGER_32 = 1 -- Exception code for feature applied to void reference 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) 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: EXCEP_CONST): 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: EXCEP_CONST): BOOLEAN -- Is other attached to an object considered -- equal to current object? -- (from ANY) 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: EXCEP_CONST): 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 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 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)) feature -- Duplication copy (other: EXCEP_CONST) -- 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: EXCEP_CONST) -- 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: EXCEP_CONST -- 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: EXCEP_CONST) -- 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: EXCEP_CONST -- 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: EXCEP_CONST -- 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 EXCEP_CONST -- 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 -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) note copyright: "Copyright (c) 1984-2012, 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 EXCEP_CONST
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