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
|
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -typecheck -verify -o - -primary-file %s -I %S/Inputs/custom-modules/
// REQUIRES: objc_interop
import Foundation
import SubclassExistentialsExtra
class SwiftLaundryService : NSLaundry {
var g: (Garment & Coat)? = nil
func wash(_ g: Garment & Coat) {
self.g = g
}
func bleach(_ g: Garment & Coat & Cotton) {}
func dry() -> Garment & Coat {
return g!
}
}
// FIXME: Consider better diagnostics here.
class OldSwiftLaundryService : NSLaundry {
// expected-error@-1 {{type 'OldSwiftLaundryService' does not conform to protocol 'NSLaundry'}}
// expected-note@-2 {{add stubs for conformance}}
var g: Coat? = nil
func wash(_ g: Coat) { // expected-note {{candidate has non-matching type '(Coat) -> ()'}}
self.g = g
}
func bleach(_ g: Coat) {} // expected-note {{candidate has non-matching type '(Coat) -> ()'}}
func dry() -> Coat { // expected-note {{candidate has non-matching type '() -> Coat'}}
return g!
}
}
// Make sure the method lookup is not ambiguous
_ = Coat.fashionStatement.wear()
func testInheritanceFromComposition(_ object: CompositionSubObject, _ specific: CompositionSubSpecific) {
let _: NSObject = object
let _: NSCopying = object
let _: SomeSpecificSubclass = specific
let _: NSCopying = specific
}
|
