[swift-evolution] Require parameter names for ENUM Associated Types?

[Adrian Zubarev]

If we’re talking about non optional values here, then I don’t produce a possible expensive copy of my associated values (sure it depends on the type, COW etc.), but that’s my main point for excluding the the associated values.

Somewhere in my code I also have a semi schema subscript which evaluates the enum case like this:

if case .double = $0 { return true } else { return false }
There is just no better way for this check. I wish I could write something like return .double ~= $0 there.



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Adrian Zubarev
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Am 29. November 2016 um 17:19:16, Tony Allevato (allevato at google.com) schrieb:

I suppose I'm not seeing why it's important to exclude the associated values from pattern matching. What do you gain except saving a few characters?
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