I run into exact same problem here:
- Is this a function builder bug or is my builder incorrect?
- (incomplete function builder) swift-legacy-user-interface/LayoutBuilder.swift at master 路 UndefinedAlgorithm/swift-legacy-user-interface 路 GitHub
- (workaround overload ) swift-legacy-user-interface/HStackLayout.swift at master 路 UndefinedAlgorithm/swift-legacy-user-interface 路 GitHub
I pinged @Douglas_Gregor on twitter in that regard, but have not received any answer yet.