in reply to Converting Hashes to Objects

Any code references present in the hash will become methods.
This makes it sound like you can add methods after creating the hash. (Or, if keys are locked, that you can turn an existing key into a method), but from reading the code it looks like only subref present at creation are called directly.

My original question was about whether the -meth option made it impossible to have a subref as a value, the answer would be it's impossible to have both methods and subref values at creation. Maybe the methods should be removed from the hashs' keys though, otherwise if you iterate over the hash with each it would be impossible to tell methods and subref values appart. Also if you have a method $hash->meth(), this mean you'd be able to set $hash->{meth} (to either a plain value or a subref) without any impact on the method call.