Not sure what you mean by 'leaking into CORE', but I wouldn't use Metamodel::
namespace too. My suggestion would be to use Type::SumHOW or
Type::Metamodel::SumHOW. The latter is better from namespace structuring point
of view unless long names disgust you.
Best regards,
Vadim Belman
> On Apr 8, 2019, at 1:38 PM, Ben Davies wrote:
>
> I wrote a small sum type module that subclasses
> Perl6::Metamodel::SubsetHOW. I was thinking of naming it either
> Type::Sum or Metamodel::SumHOW, but Type::Sum doesn't follow the style
> Rakudo uses for naming MOP classes, and Metamodel::SumHOW may not be a
> good name because it'd leak the module into CORE. What should I call it?
>