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RUG::B

Ruby User Group Berlin

Better Composition with Traits

this Topic will be presented by Joe Corcoran

at November Meetup 2014, hosted by Tobias Pfeiffer

This talk will explain the concept of traits, specifically the model described in the 2006 paper Traits: A Mechanism for Fine-grained Reuse by Ducasse et al.

We will take a look at differing trait implementations in some other languages, which specific everyday design problems traits solve and how they differ from Ruby modules as a method for code reuse.

Finally we will explore how some features introduced in Ruby 2 allow us to implement Ducasse's traits in Ruby and how to compose a class without touching the class hierarchy at all.

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