On Tue, 18 Apr 2017 20:34:15 -0700, david.warring wrote:
> AFAIK there's currently no way of introspecting the shape of a Class
> attribute that's a native shaped array.
>
> I'd like this feature for the Native::Packing module. For example to
> interpret:
>
> class C {
> has byte @.gif-header[6];
> has uint16 $.width;
> has uint16 $height;
> }
>
> At the moment, I just can't determine the size of shaped native arrays,
> such as @.gif-header above:
>
> say .type, .container
> for C.^attributes;
>
> (Positional[byte])(array[byte])
> (uint16)(uint16)
> (uint16)(uint16)
Seems .container does have method .shape, but it returns a Whatever:
class C {
has byte @.gif-header[6];
has uint16 $.width;
has uint16 $height;
}
say .container.shape for C.^attributes[0]; # (*)
dd C.new.gif-header.shape; # (6,)
my byte @z[6];
dd @z.shape; # (6,)
