I wrote up the following draft proposal around attempting to clarify protocol
implementation and protocol extensions, via annotating methods and properties
meant to satisfy protocol requirements with additional keywords:
"Types implementing protocols with optional features (either through default
implementations on extensions, or optional methods on objective-C protocols) do
not have a way to detect either local typos or later upstream changes to the
protocol method signatures will result in behavioral changes. This proposal
attempts to rectify that in a manner similar to override on subclassed types."
I’d appreciate feedback from the list! This is very much a first draft, likely
filled with tyops.
https://gist.github.com/dwaite/5a10e759a0efd0d9d16e066db4291552
<https://gist.github.com/dwaite/5a10e759a0efd0d9d16e066db4291552>
-DW
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