How are Scala traits compiled into Java bytecode?

Posted by Justin Ardini on Stack Overflow See other posts from Stack Overflow or by Justin Ardini
Published on 2010-03-31T23:59:28Z Indexed on 2010/04/01 0:03 UTC
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scala

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bytecode

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deeper-understanding

I have played around with Scala for a while now, and I know that traits can act as the Scala equivalent of both interfaces and abstract classes. Recently I've been wondering how exactly traits are compiled into Java bytecode. I found some short explanations that stated traits are compiled exactly like Java interfaces when possible, and interfaces with an additional class otherwise. I still don't understand, however, how Scala achieves class linearization, a feature not available in Java.

Could anyone explain or provide a good source explains how traits compile to Java bytecode?

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