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// RUN: %target-run-simple-swift(-import-objc-header %S/Inputs/objc_implementation.h -D TOP_LEVEL_CODE -swift-version 5 -enable-experimental-feature CImplementation) %s | %FileCheck %s
// REQUIRES: executable_test
// REQUIRES: objc_interop
import Foundation
// A class whose deallocation is detectable, so we can verify that deinits
// are correctly synthesized.
class LastWords {
var text: String
init(text: String) {
self.text = text
}
deinit {
print(text, "It's better to burn out than to fade away.")
}
}
@_objcImplementation extension ImplClass {
@objc override init() {
self.implProperty = 0
self.object = LastWords(text: String(describing: type(of: self)))
super.init()
}
@objc var implProperty: Int
final var object: LastWords
final weak var defaultNilProperty: AnyObject?
@objc var defaultIntProperty: Int = 17
@objc class func runTests() {
do {
let impl = ImplClass()
print("someMethod =", impl.someMethod())
print("implProperty =", impl.implProperty)
impl.implProperty = 42
print("implProperty =", impl.implProperty)
print("defaultIntProperty =", impl.defaultIntProperty)
print("description =", impl.description)
}
do {
let swiftSub = SwiftSubclass()
print("someMethod =", swiftSub.someMethod())
print("implProperty =", swiftSub.implProperty)
swiftSub.implProperty = 42
print("implProperty =", swiftSub.implProperty)
print("defaultIntProperty =", swiftSub.defaultIntProperty)
print("otherProperty =", swiftSub.otherProperty)
swiftSub.otherProperty = 13
print("otherProperty =", swiftSub.otherProperty)
print("implProperty =", swiftSub.implProperty)
}
implFunc(2023 - 34)
}
@objc func someMethod() -> String { "ImplClass.someMethod()" }
open override var description: String {
"ImplClass(implProperty: \(implProperty), object: \(object))"
}
}
class SwiftSubclass: ImplClass {
@objc var otherProperty: Int = 1
override init() {
super.init()
}
override func someMethod() -> String { "SwiftSubclass.someMethod()" }
}
@_objcImplementation @_cdecl("implFunc") public func implFunc(_ param: Int32) {
print("implFunc(\(param))")
}
// `#if swift` to ignore the inactive branch's contents
#if swift(>=5.0) && TOP_LEVEL_CODE
ImplClass.runTests()
// CHECK: someMethod = ImplClass.someMethod()
// CHECK: implProperty = 0
// CHECK: implProperty = 42
// CHECK: defaultIntProperty = 17
// CHECK: description = ImplClass(implProperty: 42, object: main.LastWords)
// CHECK: ImplClass It's better to burn out than to fade away.
// CHECK: someMethod = SwiftSubclass.someMethod()
// CHECK: implProperty = 0
// CHECK: implProperty = 42
// CHECK: defaultIntProperty = 17
// CHECK: otherProperty = 1
// CHECK: otherProperty = 13
// CHECK: implProperty = 42
// CHECK: SwiftSubclass It's better to burn out than to fade away.
// CHECK: implFunc(1989)
#endif
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