[swift-evolution] struct subtyping

Tino Heth 2th at gmx.de
Thu Mar 24 09:16:25 CDT 2016

> Could we accomplish something similar to `newtype` by making the `typealias` declaration more powerful?
It's the first thing I tried, but afair someone from the Core Team opposed extending typealias - and I had to agree that an "alias" should be just a synonym.

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