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Postings from December 2019
On Fri, Nov 29, 2019 at 10:18:57AM +0000, Toby Inkster (TOBYINK) wrote:
> This is a reply to Dave Mitchell's email, but it will probably get
> threaded badly as I've only just subscribed to perl5-porters and don't
> have the original email to click "reply" on.
>
>
> This is all pretty over-engineered. It can be simplified to something
> that would work well with existing type implementations such as
> MooseX::Types, MouseX::Types, Type::Tiny, and Specio.
If you haven't see them, Toby's blog postings on Type::Tiny are worth reading:
http://blogs.perl.org/mt/mt-search.fcgi?blog_id=1019&tag=Type-Tiny&limit=20
> Second, define these:
>
> use Scalar::Util;
> sub UNIVERSAL::check {
> my ($class, $object) = @_;
> blessed($object) && !blessed($class) && $object->DOES($class);
> }
> sub UNIVERSAL::get_message {
> my ($class, $value) = @_;
> "$value is not $class";
> }
>
> Third, nothing. There is no third.
I think is should be distinct from isa, so I don't think the above is needed.
Tony
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