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
49
50
51
52
53
54
55
56
57
58
59
60
|
public func getVersion() -> Int {
#if BEFORE
return 0
#else
return 1
#endif
}
public protocol OtherProtocol {
init()
}
#if AFTER
// Protocol is always available, type is weak-linked
@_weakLinked public struct OtherConforms : OtherProtocol {
public init() {}
}
#endif
public protocol OldProtocol {
#if AFTER
@_weakLinked associatedtype NewType: OtherProtocol = OtherConforms
@_weakLinked func newMethod() -> NewType
#endif
}
#if AFTER
extension OldProtocol {
@_weakLinked public func newMethod() -> NewType {
return NewType()
}
}
#endif
// Protocol is weak-linked, type is always available
#if AFTER
@_weakLinked public protocol NewProtocol {
func newMethod()
}
#endif
public struct NewConforms {
public init() {}
}
#if AFTER
@_weakLinked extension NewConforms : NewProtocol {
public func newMethod() {}
}
#endif
// Protocol and type are always available, conformance is weak-linked
public struct NewConformanceConforms {
public init() {}
}
public protocol NewConformanceProtocol {}
#if AFTER
@_weakLinked extension NewConformanceConforms : NewConformanceProtocol {}
#endif
|
