Has anyone else noticed how much the Preview macro slows down your builds?
github.com[Sema] Skip redeclaration checking for unique macro names by kylebshr · Pull Request #93290 · swiftlang/swiftResolves #93287.
#93287 has the full details, but in short: when a file has a top-level freestanding declaration macro like #Preview, the redeclaration check on the declaration it expands to looks ...
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