note
	description: "Call record"
	status: "See notice at end of class."
	legal: "See notice at end of class."
	date: "$Date: 2018-11-14 14:54:22 +0000 (Wed, 14 Nov 2018) $"
	revision: "$Revision: 102461 $"

class interface
	RT_DBG_CALL_RECORD

create 
	make (rec: like recorder; ref: ANY; cid, fid: INTEGER_32; dep: INTEGER_32)
			-- Make as call {cid}.fid for object ref and depth dep
		require
			rec_attached: rec /= Void
			ref_attached: ref /= Void

feature -- Access

	generating_type: TYPE [detachable RT_DBG_CALL_RECORD]
			-- 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

	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 (other: RT_DBG_CALL_RECORD): 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: RT_DBG_CALL_RECORD): 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 (other: RT_DBG_CALL_RECORD): 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: RT_DBG_CALL_RECORD)
			-- 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: RT_DBG_CALL_RECORD)
			-- 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: RT_DBG_CALL_RECORD
			-- 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: RT_DBG_CALL_RECORD)
			-- 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: RT_DBG_CALL_RECORD
			-- 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: RT_DBG_CALL_RECORD
			-- 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 RT_DBG_CALL_RECORD
			-- 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 -- Change

	register_position (a_line, a_nested: INTEGER_32)
			-- Set last position
		require
			a_line_valid: a_line > 0
			a_nested_valid: a_nested >= 0

	set_breakable_info (v: like breakable_info)
			-- Set breakable_info

	wipe_out_value_records
			-- Wipe out value records
	
feature -- Measure

	last_position: TUPLE [line: INTEGER_32; nested: INTEGER_32]
			-- Last position

	rt_information_available: BOOLEAN
			-- Is Runtime information available for this call ?

	same_object_type (ref: detachable ANY): BOOLEAN
			-- Is ref representing the same value as object ?
	
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
	
feature -- Properties

	breakable_info: detachable TUPLE [line: INTEGER_32; nested: INTEGER_32]
			-- Breakable info when call occurred.

	call_records: detachable ARRAYED_LIST [like Current]
			-- Sub call records.

	class_type_id: INTEGER_32
			-- Related written class type id.

	depth: INTEGER_32
			-- Call stack depth of Current's call

	dynamic_class_type_id: INTEGER_32
			-- Related dynamic class type id.

	feature_rout_id: INTEGER_32
			-- Related feature routine id.

	flat_value_records_has_local: BOOLEAN
			-- Does value_records has local values ?
		require
			is_flat: is_flat

	object: detachable ANY
			-- Target object.

	parent: detachable like Current
			-- Parent's call record.

	steps: ARRAYED_LIST [BOOLEAN]
			-- Steps data

	value_records: detachable ARRAYED_LIST [RT_DBG_VALUE_RECORD]
			-- Recorded values (assignment...)
	
feature -- Status

	call_records_closed: BOOLEAN
			-- Is call_records entries closed?
		require
			is_not_closed: not is_closed

	is_closed: BOOLEAN
			-- Is Current record closed ?

	is_expanded: BOOLEAN
			-- Is object an expanded value ?

	is_flat: BOOLEAN
			-- Is Current record flat ?
	
feature -- debug

	debug_display_steps
			-- Display steps for debugging purpose.

	debug_output: STRING_8
			-- Debug output as string representation.
		ensure -- from DEBUG_OUTPUT
			result_not_void: Result /= Void
	
invariant
	recorder_attached: recorder /= Void
	steps_attached: steps /= Void
	last_position_attached: last_position /= Void
	non_empty_call_records: attached call_records as crecs implies not crecs.is_empty
	value_records_not_void_if_flat: is_flat implies value_records /= Void

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

note
	library: "EiffelBase: Library of reusable components for Eiffel."
	copyright: "Copyright (c) 1984-2018, 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 RT_DBG_CALL_RECORD

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