Re: Adding the ?. null verification

[Kapps via Digitalmars-d]

On Wednesday, 18 June 2014 at 15:42:04 UTC, Etienne wrote:
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?

C# is getting the same syntax, and I remember there being some 
discussion about it here. It's somewhat useful I suppose, though 
I think it's made significantly more useful in C# with 'a ?? b' 
(a if a is not null, else b).