@swift-5.6.3 @swift-main
import Foundation @propertyWrapper struct Wrapper<Value> { var wrappedValue: Value var projectedValue: Self { get { self } set { self = newValue } } init(wrappedValue: Value) { self.wrappedValue = wrappedValue } init(projectedValue: Self) { self = projectedValue } } struct Foo { init(@Wrapper val: Int) {} } func call() { @Wrapper var val = 10 Foo($val: _val) } call()
(edited)