What is this "\t"?

[ToddAndMargo via perl6-users]

Hi All,

On

https://github.com/salortiz/NativeHelpers-Blob/blob/master/lib/NativeHelpers/Blob.pm6

Line 96

my \t = ptr.of ~~ void ?? $type.of !! ptr.of;


What is `\t`?

What of `.of`

What is `??`?

What is `!!`


Yours in confusion.

-T