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erica/with.swift

Created May 25, 2016 17:16
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with.swift
// @discardableResult to be added
// @noescape needs to move to type annotation
// needs to add _ for item
public func with<T>(item: T, @noescape update: (inout T) throws -> Void) rethrows -> T {
var this = item; try update(&this); return this
}
@catalandres
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Did this end up submitted as a Swift Evolution proposal?

@jamescmartinez
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@catalandres yup! https://github.com/brentdax/swift-evolution/blob/with-function/proposals/NNNN-introducing-with-to-stdlib.md#detailed-design

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