Allow null-conditional access operator when accessing a pointer type

[john-h-k]

Currently, this code does not compile

class Foo
{
    public void* Bar;
}

Foo foo = ...;

void* p = foo?.Bar;

I suggest this should be legal, and return null if the left hand side is null, as is currently done with reference types

[Joe4evr]

Duplicate of #398.

[john-h-k]

That did not cover this operator explicitly 🙂 , it appeared they were suggesting ?. on pointers as ?->, rather than using ?. where the resulting type is a pointer

[yaakov-h]

This does seem like an interesting case that isn't quite covered by #323 or #398.

To be clear, is the idea here that notAPointerReference?.APointerReference would become legal, and return a null pointer if notAPointerReference evalutes to null?

[john-h-k]

Yes, exactly @yaakov-h

[DanielShuey]

Any updates on this? Due to Unity I would be using ?? ??= ?. on pointers a lot, ref returns and ref structs are a pain. Thanks.

Oh yeah and allowing pointers to be used in Generic type parameters would be great too, thanks :).