File: inverse_extensions.swift

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (22 lines) | stat: -rw-r--r-- 963 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
 
// RUN: %target-typecheck-verify-swift \
// RUN:   -enable-experimental-feature NonescapableTypes \
// RUN:   -enable-experimental-feature SuppressedAssociatedTypes

struct Turtle<T> {}
extension Turtle where T: ~Copyable {} // expected-error {{'T' required to be 'Copyable' but is marked with '~Copyable'}}

struct Rabbit<T> where T: ~Copyable {}
extension Rabbit where T: ~Escapable {} // expected-error {{'T' required to be 'Escapable' but is marked with '~Escapable'}}

protocol P {}
extension P where Self: ~Escapable {} // expected-error {{'Self' required to be 'Escapable' but is marked with '~Escapable'}}

protocol HasAssoc {
  associatedtype A
}
extension HasAssoc where Self.A: ~Copyable {}
// expected-error@-1 {{cannot suppress '~Copyable' on generic parameter 'Self.A' defined in outer scope}}
// expected-error@-2 {{'Self.A' required to be 'Copyable' but is marked with '~Copyable'}}

class Box<T: ~Copyable> {}
extension Box where T: ~Copyable {}