WhatsNewInSwift.md

What's New in Swift

@ WWDC19

Performance

• ABI Stability, Module Stability

  • ABI: Application Binary Interface
  • ABI stability 이전에는 executable과 framework가 동일한 컴파일러에서 빌드되어야 했지만 Swift 5 or later 버전 컴파일러를 이용하면 다른 컴파일러에서 빌드가 가능하다.
  • Swift 5.1에서 module interface 파일 도입
  • Module + ABI stability = Binary frameworks

• Apps and the Shared Swift Runtime in the OS

  • Swift 5 or later, Apps use the runtime from OS when it is available

• SourceKit

Language and Standard Library

• Implicit return from single expressions
• Synthesized default values for the memberwise initializer
• SIMD vectors API
• New design for String interpolation
• Opaque result types
• Property Wrapper types
• DSLs