There is still a lot of black magic in MooseX::Declare interfering, but if you use use overload '""' => 'to_string'; instead of referencing it symbolically, it should work if to_string is defined as either a sub or a method. It will also allow subclasses to override the stringification behavior.

In reply to Re^3: MooseX::Declare and overload by Haarg
in thread MooseX::Declare and overload by FunkyMonk

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