Is it possible to define a subtype that will provide a stringify method?
I see MooseX::Exception::Base::Stringify that can be provided as a trait for an
attribute, but that gets onerous (and error-prone) when *every* time you
declare an attribute that has "... isa => MyType ..." you want to also have
"... traits => [qw{MooseX::Exception::Stringify}] ..." applied. It would be
much more convenient to have the subtype provide the stringify capability. I'm
visualizing something like either a parameter to the subtype declaration to
specify stringify (or other overloads, perhaps); or alternately a separate
mechanism (like the way coerce is done) outside the subtype declaration that
modifies it to have the overloaded stringify.
John Macdonald
Software Engineer
Ontario Institute for Cancer Research
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