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// RUN: %empty-directory(%t)
// RUN: %target-build-swift -o %t/main %target-rpath(%t) %s -swift-version 5
// RUN: %target-codesign %t/main
// RUN: %target-run %t/main | %FileCheck %s
// RUN: %target-build-swift -o %t/main %target-rpath(%t) %s -swift-version 5 -enable-library-evolution
// RUN: %target-codesign %t/main
// RUN: %target-run %t/main | %FileCheck %s
// REQUIRES: executable_test
// REQUIRES: swift_test_mode_optimize_none
// REQUIRES: CPU=arm64 || CPU=arm64e || CPU=x86_64
public protocol Assoc {
associatedtype A = Int
@available(macOS 10.15, iOS 13, tvOS 13, watchOS 6, *)
func act() -> A
}
func testAssociatedType<T: Assoc> (_ t: T) {
print(T.A.self)
}
protocol P {
}
extension Int : P {
}
struct Pair : P {}
struct Test : Assoc {
@available(macOS 10.15, iOS 13, tvOS 13, watchOS 6, *)
dynamic func act() -> some P {
return 1
}
}
extension Test {
@available(macOS 10.15, iOS 13, tvOS 13, watchOS 6, *)
@_dynamicReplacement(for: act)
func act_r() -> some P {
return Pair()
}
}
func test() {
let t = Test()
// CHECK: Pair
if #available(macOS 10.15, iOS 13, tvOS 13, watchOS 6, *) {
testAssociatedType(t)
} else {
print("Pair")
}
}
test()
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