SwiftUI を理解するために必要な Swift 5.1 の新機能 (some View編)2019/08/07 Bonfire iOS #6 https://yj-meetup.connpass.com/event/136285/ apple/swift-evolution: SE-0255: Implicit return from single expressions https://github.com/apple/swift-evolution/blob/master/proposals/0255-omit-return.md SE-XXXX: Function Builders https://github.com/apple/swift-evolution/blob/9992cf3c11c2d5e0ea20bee98657d93902d5b174/proposals/XXXX-function-builders.md SE-0244: Opaque Result T
