id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
2713	ByRef Copy Bug	anonymous		"In the following script, the presence of {{{ByRef}}} causes {{{$old}}} to be a reference, not a copy.
{{{
#include ""car.au3""

$car = Car () ; speed: 50

Func getAcceleratedCar (ByRef $car_speed)
	Local $old = $car
	$car_speed *= 2
	Local $new = $car

	Car_printSpeed ($car, ""car"") ; speed: 100
	Car_printSpeed ($old, ""old"") ; speed: 100, expected 50
	Car_printSpeed ($new, ""new"") ; speed: 100

	$car = $old
	return $new
EndFunc

getAcceleratedCar ($car [$Car_Speed])
}}}

car.au3:
{{{
; class Car
Func Car ($speed = 50)
	Local $__instance [$__Car__ObjectSize] = [$__Car__VTable]
	$__instance [$Car_Speed] = $speed
	return $__instance
EndFunc
Func __Car__printSpeed__Impl (ByRef $__instance, $name)
	ConsoleWrite (""speed of "" & $name & "": "" & $__instance [$Car_Speed] & @CRLF)
EndFunc
Func Car_printSpeed (ByRef $__instance, $__arg1)
	Local $function = ($__instance [$__Car__VTableIndex]) [$__Car__printSpeed__Index]
	Return $function ($__instance, $__arg1)
EndFunc
Const $__Car__VTableIndex = 0
Const $__Car__VTable = [__Car__printSpeed__Impl]
Const $__Car__printSpeed__Index = 0
Const $__Car__ObjectSize = 2
Const $Car_Speed = 1
; end class Car
}}}"	Bug	new		AutoIt	3.3.11.5	None		byRef