suggest a moops version of Yanick's deduper as an example

[mokko]

I didn't talk to Yanick. Just thought the recent award-winning piece of code might might be a good demo for moops's clean code. Perhaps also for performance.

I guess the file should make better reference to original author in case you want to include it. I just wanted to run it by you to see what you think.

[tobyink]

traits    => ['Counter'],       #doesn't work in Moops?

This isn't going to work in a Moo class. Moops uses MooX::HandlesVia to implement attribute traits in Moo classes (because Moo doesn't have any native support for attribute traits). MooX::HandlesVia's documentation notes that because of the way Moo is implemented, this is only really useful for attributes where the values are references (i.e. arrayrefs, hashrefs, etc).

Also, I think the hash_size stuff is broken. (The trigger for the hash_size attribute in Deduper tries to call Deduper::File->hash_size(...) but this will fail, because it's an object method, not a class method.)

Overall, I think it might be too long to serve as a useful example.