lint もいいけど、もっと進んでまともな formatter が Xcode にインテグレートされて欲しい。 これが育っていけばいずれは… https://github.com/apple/swift/pull/11320
️ Do Not Merge ️ This patch is an initial implementation of the Swift libSyntax API. It aims to provide all features of the C++ API but exposed to Swift. It currently resides in SwiftExperimental...