Swift 4.1 Conditional Conformance Is Amazing

Stephen Celis:

Here’s a non-empty collection type that works with any collection.

Wrapping a MutableCollection type gives the non-empty type all those methods for free!

Previously: Conditional Conformance in the Standard Library.

Update (2018-03-23): See also: Swift Unwrapped.

Update (2018-03-27): See also: Swift Unwrapped.

Update (2018-05-01): See also: Ole Begemann.

Language Design Programming Swift Programming Language

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