mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
b67d5f0cf7
This converts the instances of the pattern for which we have a proper substitution in lit. This will make it easier to replace it appropriately with Windows equivalents.
43 lines
698 B
Swift
43 lines
698 B
Swift
// RUN: %empty-directory(%t)
|
|
// RUN: %target-build-swift %s -o %t/a.out
|
|
// RUN: %target-run %t/a.out
|
|
// REQUIRES: executable_test
|
|
protocol P {
|
|
func foo() -> Int
|
|
}
|
|
|
|
struct X : P {
|
|
func foo() -> Int { return 1 }
|
|
}
|
|
|
|
struct Y<T> {
|
|
var wrapped: T
|
|
}
|
|
|
|
extension Y: P where T: P {
|
|
func foo() -> Int { return wrapped.foo() + 10 }
|
|
}
|
|
|
|
func tryAsP(_ value: Any) -> Int {
|
|
if let p = value as? P {
|
|
return p.foo()
|
|
}
|
|
|
|
return 0
|
|
}
|
|
|
|
extension Dictionary: P where Value == (Key) -> Bool {
|
|
func foo() -> Int { return 2 }
|
|
}
|
|
|
|
|
|
let yx = Y(wrapped: X())
|
|
assert(tryAsP(yx) == 11)
|
|
|
|
let dict: [Int : (Int) -> Bool] = [:]
|
|
assert(tryAsP(dict) == 2)
|
|
|
|
let yDict = Y(wrapped: dict)
|
|
assert(tryAsP(yDict) == 12)
|
|
|