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// RUN: %target-run-simple-swift | %FileCheck %s
// REQUIRES: executable_test
// UNSUPPORTED: use_os_stdlib
// UNSUPPORTED: back_deployment_runtime
class MyLabel {
var text = "label"
}
class Controller {
fileprivate let label = MyLabel()
fileprivate var secondLabel: MyLabel? = MyLabel()
public var thirdLabel: MyLabel? = MyLabel()
subscript(string: String) -> String {
get {
""
}
set {
}
}
subscript(int int: Int, str str: String, otherInt: Int) -> Int {
get {
0
}
set {
}
}
subscript() -> Int {
0
}
subscript<T>(array: [T]) -> T? {
array.first
}
subscript<T, U>(array: [T], array2: [U]) -> T? {
array.first
}
subscript<T>(array array: [T]) -> T? {
array.first
}
subscript<T, U>(array array: [T], array2 array2: [U]) -> T? {
array.first
}
}
struct S {
var a: Int
}
struct Container<V> {
var v : V
init(_ v: V) {
self.v = v
}
func useKeyPath<V2: AnyObject>(_ keyPath: KeyPath<V, V2>) -> String {
return (v[keyPath: keyPath] as! MyLabel).text
}
}
extension Container where V: Controller {
func test() -> String {
return useKeyPath(\.label)
}
}
// CHECK: label
print(Container(Controller()).test())
public class GenericController<U> {
init(_ u: U) {
self.u = u
}
var u : U
fileprivate let label = MyLabel()
}
public func generic_class_constrained_keypath<U, V>(_ c: V) where V : GenericController<U> {
let kp = \V.label
print(kp)
print(c[keyPath: kp].text)
}
// CHECK: GenericController<Int>.label
// CHECK: label
generic_class_constrained_keypath(GenericController(5))
// CHECK: {{\\Controller\.secondLabel!\.text|\\Controller\.<computed 0x.* \(Optional<MyLabel>\)>!\.<computed 0x.* \(String\)>}}
print(\Controller.secondLabel!.text)
// CHECK: {{\\Controller\.subscript\(_: String\)|\\Controller\.<computed 0x.* \(String\)>}}
print(\Controller["abc"])
// CHECK: \S.a
print(\S.a)
// CHECK: {{\\Controller\.subscript\(int: Int, str: String, _: Int\)|\\Controller\.<computed 0x.* \(Int\)>}}
print(\Controller[int: 0, str: "", 0])
// CHECK: {{\\Controller\.thirdLabel|\\Controller\.<computed 0x.* \(Optional<MyLabel>\)>}}
print(\Controller.thirdLabel)
// CHECK: {{\\Controller\.subscript\(\)|\\Controller\.<computed 0x.* \(Int\)>}}
print(\Controller.[])
// CHECK: \Controller.self
print(\Controller.self)
// Subscripts with dependent generic types don't produce good output currently,
// so we're just checking to make sure they don't crash.
// CHECK: \Controller.
print(\Controller[[42]])
// CHECK: Controller.
print(\Controller[[42], [42]])
// CHECK: \Controller.
print(\Controller[array: [42]])
// CHECK: \Controller.
print(\Controller[array: [42], array2: [42]])
do {
struct S {
var i: Int
}
func test<T, U>(v: T, _ kp: any KeyPath<T, U> & Sendable) {
print(v[keyPath: kp])
}
// CHECK: 42
test(v: S(i: 42), \.i)
}
do {
@dynamicMemberLookup
struct Test<T> {
var obj: T
subscript<U>(dynamicMember member: KeyPath<T, U> & Sendable) -> U {
get { obj[keyPath: member] }
}
}
// CHECK: 5
print(Test(obj: "Hello").utf8.count)
}
do {
struct S1: Hashable {}
struct S2 {
subscript(param: S1) -> String { "Subscript with private type" }
}
let kp = \S2[S1()]
// CHECK: Subscript with private type
print(S2()[keyPath: kp])
// CHECK: {{\\S2\.subscript\(_: S1 #[0-9]+\)|\S2\.<computed 0x.* \(String\)>}}
print(kp)
}
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