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by hota_mazi 3147 days ago
> though I wish you could re-open 3rd party classes to make them conform to additional interfaces which you can do with Swift protocols.

Mmmh really? I just reread the Protocol section of the Swift documentation and I didn't find this.

If I have a class I can't modify and that doesn't conform to protocol `Foo`, can I make it conform to that protocol?

A similar feature is being considered for Kotlin since this opens up all kinds of interesting mechanisms (notably, ad hoc polymorphism) but I don't see how to do that in Swift right now.
1 comments
faical 3147 days ago
> If I have a class I can't modify and that doesn't conform to protocol `Foo`, can I make it conform to that protocol?

Yes, you can.

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fauigerzigerk 3146 days ago
Not sure if that's a good thing though. I read some of the Swift standard library source code and found it very difficult to piece together all the stuff added by extensions, where they come from and where the original class definition is.

Obviously, it's going to be easier if you have written the code yourself, but what if someone else needs to read it?

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hota_mazi 3146 days ago
Can you point to the relevant documentation section? I couldn't find it.
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