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Swift 5.9 Brings a Macro System and C++ Interoperability

October 12, 2023

Via: InfoQ

In addition to an expressive macro system and a limited form of C++ interoperability, Swift 5.9, now officially available, also introduces parameter packs, ownership-based memory management, and more.

InfoQ already covered Swift’s macro system when it was first announced at last WWDC developer conference. In short, macros are Swift functions that use the SwiftSyntax library to generate code to replace the macro call.

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