macro_availability_macos.swift

// REQUIRES: swift_swift_parser, asserts
// REQUIRES: OS=macosx

// RUN: %target-typecheck-verify-swift -swift-version 5 -module-name MacrosTest -target %target-cpu-apple-macos50

@freestanding(expression)
macro overloadedOnAvailability(_:Any)->Int= #externalMacro(module:"MacroLibrary", type:"MyOldMacro")
//expected-warning@-1{{external macro implementation type 'MacroLibrary.MyOldMacro'}}
// expected-note@-2 2{{'overloadedOnAvailability' declared here}}

@available(macOS 60,*)
@freestanding(expression)
macro overloadedOnAvailability(_:Int)->Double= #externalMacro(module:"MacroLibrary", type:"MyNewMacro")
//expected-warning@-1{{external macro implementation type 'MacroLibrary.MyNewMacro'}}
// expected-note@-2{{'overloadedOnAvailability' declared here}}


func mutateInt(_:inoutInt){}
func mutateDouble(_:inoutDouble){}

func testAvailabilityOld(){
vara= #overloadedOnAvailability(1)
mutateInt(&a)
 // expected-error@-2{{external macro implementation type 'MacroLibrary.MyOldMacro'}}
}

@available(macOS 60,*)
func testAvailabilitNew(a:Any){
vara= #overloadedOnAvailability(1)
mutateDouble(&a)
 // expected-error@-2{{external macro implementation type 'MacroLibrary.MyNewMa}}

varb= #overloadedOnAvailability(a)
mutateInt(&b)
 // expected-error@-2{{external macro implementation type 'MacroLibrary.MyOldMacro'}}
}