1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
// RUN: %target-build-swift %s -Xfrontend -disable-objc-attr-requires-foundation-module -o %t-main
// RUN: %target-codesign %t-main
// RUN: %target-run %t-main | %FileCheck %s
// REQUIRES: executable_test
// REQUIRES: objc_interop
import Foundation
protocol Protocol : class {
func noop()
}
//========================== Test ObjC classes ==========================
@objc
class ObjCClassBase : Protocol {
func noop() { print("noop") }
}
@objc
class ObjCClass : ObjCClassBase {
override init() {
print("ObjCClass Created")
}
deinit {
print("ObjCClass Destroyed")
}
}
func printState(_ x : ObjCClassBase?) {
print((x != nil) ? "is present" : "is nil")
}
func testObjCClass() {
print("testObjCClass") // CHECK: testObjCClass
unowned var w : ObjCClassBase?
printState(w) // CHECK-NEXT: is nil
var c : ObjCClassBase = ObjCClass() // CHECK: ObjCClass Created
printState(w) // CHECK-NEXT: is nil
w = c
printState(w) // CHECK-NEXT: is present
c.noop() // CHECK-NEXT: noop
c = ObjCClassBase() // CHECK-NEXT: ObjCClass Destroyed
}
testObjCClass()
|
