class ResettableEnumerator[of T](IEnumerator[of T]):
	_source as T*
	_delegate as IEnumerator[of T]
	
	def constructor([required] source as T*):
		_source = source
		_delegate = _source.GetEnumerator()

	def MoveNext():
		return _delegate.MoveNext()
	
	def Reset():
		_delegate = _source.GetEnumerator()
	
	IEnumerator.Current as object:
		get: return _delegate.Current
		
	Current as T:
		get: return _delegate.Current