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christianselig/milkshake.swift

Last active March 20, 2021 11:37
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A beautiful milkshake where the ingredients are Sean Heber, Yakov Shapovalov, and Hunter Meyer.
Raw
milkshake.swift
/// 🥤
extension Dictionary where Key: RawRepresentable {
func rawConversion<NewKey>() -> Dictionary<NewKey, Value> where NewKey == Key.RawValue {
let newDict: [NewKey: Value] = self.reduce(into: [:]) { (result, item) in
result[item.key.rawValue] = item.value
}
return newDict
}
}
@photovirus
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photovirus commented Mar 19, 2021 •
edited

You can make it an (almost) one-liner like this:

    func rawConversion<NewKey>() -> Dictionary<NewKey, Value> where NewKey == Key.RawValue {
        self.lazy.reduce(into: [:]) { (result, item) in
            result[item.key.rawValue] = item.value
        }
    }

@huntercmeyer
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To allow for type inferencing,

func rawConversion<NewKey>(to type: NewKey.Type) -> Dictionary<NewKey, Value> where NewKey == Key.RawValue

with the call site:

checklist2 = checklist1.rawConversion(to: String.self)

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