Last night I was speaking at the Milton Keynes Perl Mongers technical meeting. I gave a new talk about how Moose (and, in particular, Moose traits) make Perlanet easier to maintain and enhance. The slides are available on Slideshare.
Evolving Software with Moose
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4 responses to “Evolving Software with Moose”
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The start, with ‘Overriding this is hard’, reminds me ‘Constructor should not do any real work’ as in http://misko.hevery.com/code-reviewers-guide/flaw-constructor-does-real-work/ . Granted your constructor sometimes still does real work – with the _build_scrubber method – but you can easily sidestep that by providing ready made objects to the constructor.
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Any chance of putting the slides up as a PDF-file somewhere? (You can’t download the PDF from slideshare without an account.)
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I only read the slides, so I might have missed something in the talk, but I’m not quite sure you got this right. A role can implement methods and still be a role. And a trait is a plain ol’ role that’s used in a very specific circumstance (applied to a metaclass). For reference:
http://search.cpan.org/perldoc?Moose::Cookbook::Meta::Recipe3
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