function defaults must be constant

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gman

is there any way to define an initialized type as a default parameter or constant value? for example:

Framework BRL.Blitz

Type t1
	Field val1:Int
	Field val2:Int
	Field val3:Int

	Function create:t1()
		Local retval:t1=New t1
		retval.val1=5
		retval.val2=10
		retval.val3=15
		Return retval
	EndFunction
EndType

Type t2
	Method test(v:t1=t1.create())
		DebugLog(v.val1)
		DebugLog(v.val2)
		DebugLog(v.val3)
	EndMethod
EndType

i want to either be able to pass in an intialized t1 to test() or just let it use a set default. since t1.create() was a static type function i thought for sure this would work :( now i could handle this inside of test with:

	Method test(v:t1=Null)
            If Not v Then v=t1.create()
		DebugLog(v.val1)
		DebugLog(v.val2)
		DebugLog(v.val3)
	EndMethod

simple enough, but when i extend the class the "If" statement must be included in each subtyped override of test() since calling Super.test(v) wont return the initialized variable if v started off as Null. not very OOP friendly :( anyone else have some thoughts around this or have accomplished something along these lines? i have also tried Type globals and Type constants but all give the same "must be constant" compile error.

thx.