SE-0294 adds a new target option for apps using Swift Package manager, allowing us to explicitly declare an executable target.
This is particularly important for folks who want to use SE-0281 (using @main to mark your program’s entry point), because it didn’t play nicely with Swift Package Manager – it would always look for a main.swift file.
With this change, we can now remove main.swift and use @main instead. Note: You must specify // swift-tools-version:5.4 in your Package.swift file in order to get this new functionality.
TAKE YOUR SKILLS TO THE NEXT LEVEL If you like Hacking with Swift, you'll love Hacking with Swift+ – it's my premium service where you can learn advanced Swift and SwiftUI, functional programming, algorithms, and more. Plus it comes with stacks of benefits, including monthly live streams, downloadable projects, a 20% discount on all books, and free gifts!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Other changes in Swift 5.4…
- Improved implicit member syntax
- Multiple variadic parameters in functions
- Local functions now support overloading
- Creating variables that call a function of the same name
- Result builders
- Property wrappers are now supported for local variables
Download all Swift 5.4 changes as a playground Link to Swift 5.4 changes
