File: diag_ownership_incompatibility.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 (27 lines) | stat: -rw-r--r-- 1,248 bytes parent folder | download | duplicates (2)
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
// REQUIRES: objc_interop

// RUN: %target-typecheck-verify-swift -enable-objc-interop -import-objc-header %S/Inputs/diag_ownership_incompatibility.h

class C {
  weak var weakVar: NoWeakClass? = nil // expected-error {{'NoWeakClass' is incompatible with 'weak' references}}
  unowned var unownedVar = NoWeakClass() // expected-error {{'NoWeakClass' is incompatible with 'unowned' references}}
}

_ = C()

weak var weakVar: NoWeakClass? = nil // expected-error {{'NoWeakClass' is incompatible with 'weak' references}}
unowned var unownedVar = NoWeakClass() // expected-error {{'NoWeakClass' is incompatible with 'unowned' references}}

// Subclasses are also incompatible.

class SwiftNoWeakClass: NoWeakClass { }

class D {
  weak var weakVar: SwiftNoWeakClass? = nil // expected-error {{'SwiftNoWeakClass' is incompatible with 'weak' references}}
  unowned var unownedVar = SwiftNoWeakClass() // expected-error {{'SwiftNoWeakClass' is incompatible with 'unowned' references}}
}

_ = D()

weak var weakSwiftVar: SwiftNoWeakClass? = nil // expected-error {{'SwiftNoWeakClass' is incompatible with 'weak' references}}
unowned var unownedSwiftVar = SwiftNoWeakClass() // expected-error {{'SwiftNoWeakClass' is incompatible with 'unowned' references}}