Adding the ?. null verification

[Etienne via Digitalmars-d]

I find myself often repeating this boilerplate:

if (obj.member !is null)
{
	if (obj.member.nested !is null)
	{
		if (obj.member.nested.val !is null)
		{
			writeln(obj.member.nested.val);
		}
	}
}

I have to admit it's a little frustrating when you see swift's ?. syntax 
notation, it would be a little more practical to be able to write

writeln(obj.member?.nested?.val);


Based on http://appventure.me/2014/06/13/swift-optionals-made-simple/


Any thoughts?