It does not use `Optional`, but it is semantically equivalent to `filterMap` in CwlSignal and ReactiveSwift, and the `filterMap` proposed for `Sequence` (but in the time domain instead).
Regards, Anders > On 16 Nov 2017, at 2:07 PM, Gwendal Roué via swift-evolution > <swift-evolution@swift.org> wrote: > > >> Le 16 nov. 2017 à 06:29, Matt Gallagher via swift-evolution >> <swift-evolution@swift.org <mailto:swift-evolution@swift.org>> a écrit : >> >> My opinion is that filterMap is the right choice of name. >> >> I'm completely biased, given that I already have a Swift library that uses >> filterMap, in exactly this context, for a Reactive Programming library: >> >> >> https://github.com/mattgallagher/CwlSignal/blob/22f1d47895896d7b55bc59a4ee5394071f3c84cf/Sources/CwlSignal/CwlSignalReactive.swift#L453?ts=3 >> >> <https://github.com/mattgallagher/CwlSignal/blob/22f1d47895896d7b55bc59a4ee5394071f3c84cf/Sources/CwlSignal/CwlSignalReactive.swift#L453?ts=3> > > Another popular Reactive Programming Library uses filterMap with a different > signature, and a different meaning: > https://github.com/RxSwiftCommunity/RxSwiftExt/blob/3.0.0/Source/RxSwift/filterMap.swift#L32 > > <https://github.com/RxSwiftCommunity/RxSwiftExt/blob/3.0.0/Source/RxSwift/filterMap.swift#L32> > > There are already different interpretations on "filter" in "filterMap" in the > wild. > > Gwendal Roué > > _______________________________________________ > swift-evolution mailing list > swift-evolution@swift.org > https://lists.swift.org/mailman/listinfo/swift-evolution
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