File: rdar80503090.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 (39 lines) | stat: -rw-r--r-- 970 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
30
31
32
33
34
35
36
37
38
39
// RUN: %target-typecheck-verify-swift
// RUN: %target-swift-frontend -typecheck -debug-generic-signatures %s 2>&1 | %FileCheck %s
// RUN: %target-swift-frontend -typecheck -debug-generic-signatures %s -disable-requirement-machine-concrete-contraction 2>&1 | %FileCheck %s

protocol P {
  associatedtype T where T == Self
}

protocol Q : P {}

extension P {
  func missing() {}
}

extension P where T : Q {
  // CHECK-LABEL: Generic signature: <Self where Self : Q>
  func test() {
    missing()
  }
}

class C : P {}
// expected-warning@-1 {{non-final class 'C' cannot safely conform to protocol 'P', which requires that 'Self.T' is exactly equal to 'Self'; this is an error in the Swift 6 language mode}}

extension P where T : C {
  // CHECK-LABEL: Generic signature: <Self where Self : C>
  func test() {
    missing()
  }
}

struct S : P {}

extension P where T == S {
  // CHECK-LABEL: Generic signature: <Self where Self == S>
  func test() {
    missing()
  }
}