File: moveonly_generics_opaque.swift

package info (click to toggle)
swiftlang 6.1.3-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,532 kB
  • sloc: cpp: 9,901,743; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (29 lines) | stat: -rw-r--r-- 772 bytes parent folder | download 
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
 
// RUN: %target-run-simple-swift(-target %target-swift-5.1-abi-triple) | %FileCheck %s
// RUN: %target-run-simple-swift(-target %target-swift-5.1-abi-triple -O) | %FileCheck %s

// REQUIRES: executable_test

// UNSUPPORTED: use_os_stdlib
// UNSUPPORTED: back_deployment_runtime

protocol Marked {
  func announce()
}
extension Marked {
  func announce() { print("\(Self.self) is Marked") }
}

struct ConcreteWrapper<Wrapped> {}
extension ConcreteWrapper: Marked where Wrapped: Marked {}

struct Hello<T: ~Copyable> {}
extension Hello: Marked {}

func makeWrapper<P>(wrapping _: P.Type) -> some Marked {
    ConcreteWrapper<Hello<P>>()
}

do {
  let markedVal = makeWrapper(wrapping: String.self)
  markedVal.announce() // CHECK: ConcreteWrapper<Hello<String>> is Marked
}