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// RUN: %target-typecheck-verify-swift
// REQUIRES: objc_interop
import Foundation
@objc class LightSaber {
init() {
caloriesBurned = 5
}
@objc func defeatEnemy(_ b: Bool) -> Bool { // expected-note {{'defeatEnemy' previously declared here}}
return !b
}
// Make sure we can overload a method with @nonobjc methods
@nonobjc func defeatEnemy(_ i: Int) -> Bool {
return (i > 0)
}
// This is not allowed, though
@objc func defeatEnemy(_ s: String) -> Bool { // expected-error {{method 'defeatEnemy' with Objective-C selector 'defeatEnemy:' conflicts with previous declaration with the same Objective-C selector}}
return s != ""
}
@nonobjc subscript(index: Int) -> Int {
return index
}
@nonobjc var caloriesBurned: Float
}
class BlueLightSaber : LightSaber {
@nonobjc override func defeatEnemy(_ b: Bool) -> Bool { }
}
@objc class InchoateToad {
@objc init(x: Int) {} // expected-note {{previously declared}}
@nonobjc init(x: Float) {}
@objc init(x: String) {} // expected-error {{conflicts with previous declaration with the same Objective-C selector}}
}
@nonobjc class NonObjCClassNotAllowed { } // expected-error {{'@nonobjc' attribute cannot be applied to this declaration}} {{1-10=}}
class NonObjCDeallocNotAllowed {
@nonobjc deinit { // expected-error {{'@nonobjc' attribute cannot be applied to this declaration}} {{3-12=}}
}
}
@objc protocol ObjCProtocol {
func protocolMethod() // expected-note {{}}
@nonobjc func nonObjCProtocolMethodNotAllowed() // expected-error {{declaration is a member of an @objc protocol, and cannot be marked @nonobjc}}
@nonobjc subscript(index: Int) -> Int { get } // expected-error {{declaration is a member of an @objc protocol, and cannot be marked @nonobjc}}
var surfaceArea: Float { @nonobjc get } // expected-error {{declaration is implicitly @objc, and cannot be marked @nonobjc}}
var displacement: Float { get }
}
class SillyClass {
@objc var description: String { @nonobjc get { return "" } } // expected-error {{declaration is implicitly @objc, and cannot be marked @nonobjc}}
}
class ObjCAndNonObjCNotAllowed {
@objc @nonobjc func redundantAttributes() { } // expected-error {{declaration is marked @objc, and cannot be marked @nonobjc}}
}
class DynamicAndNonObjCAreFineNow {
@nonobjc dynamic func someAttributes() { }
}
class IBOutletAndNonObjCNotAllowed {
@nonobjc @IBOutlet var leeloo : String? = "Hello world" // expected-error {{declaration is marked @IBOutlet, and cannot be marked @nonobjc}}
}
class NSManagedAndNonObjCNotAllowed {
@nonobjc @NSManaged var rosie : NSObject // expected-error {{declaration is marked @NSManaged, and cannot be marked @nonobjc}}
}
@nonobjc func nonObjCTopLevelFuncNotAllowed() { } // expected-error {{only class members and extensions of classes can be declared @nonobjc}} {{1-10=}}
@objc class NonObjCPropertyObjCProtocolNotAllowed : ObjCProtocol { // expected-error {{does not conform to protocol}} expected-note {{add stubs for conformance}}
@nonobjc func protocolMethod() { } // expected-note {{candidate is explicitly '@nonobjc'}}
func nonObjCProtocolMethodNotAllowed() { }
subscript(index: Int) -> Int {
return index
}
var displacement: Float {
@nonobjc get { // expected-error {{declaration is implicitly @objc, and cannot be marked @nonobjc}}
return Float(self[10])
}
}
var surfaceArea: Float {
get {
return Float(100)
}
}
}
struct SomeStruct { }
@nonobjc extension SomeStruct { } // expected-error{{only extensions of classes can be declared @nonobjc}}
// https://github.com/apple/swift/issues/46809
protocol P_46809 : class {}
extension P_46809 {
@nonobjc func function() {} // expected-error {{only class members and extensions of classes can be declared @nonobjc}}
}
@objc enum SomeEnum: Int {
@nonobjc case what // expected-error {{'@nonobjc' attribute cannot be applied to this declaration}}
}
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