Re: RFC 218 (v1) C<my Dog $spot> is just an assertion

Michael G Schwern <[email protected]> writes:

> On Wed, Sep 13, 2000 at 08:43:43PM -0000, Perl6 RFC Librarian wrote:
> > The behaviour of the <my Dog $spot> syntax should simply be an
> > assertion of the invariant: 
> > 
> >    (!defined($spot) || (ref($spot) && $spot->isa('Dog)))
> 
> What about the current behavior of typed pseudohashes?
> 
>     package Dog;
>     use fields qw(this night up);
> 
>     my Dog $ph = [];
>     $ph->{this} = "that";

That works? I thought you had to do:

      my Dog $self = fields::new('Dog');

(In which case, as far as I can see, the proposal makes no difference.)

-- 
Piers