File: weak_objc_interop.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 (28 lines) | stat: -rw-r--r-- 843 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
 
// RUN: %empty-directory(%t)
//
// RUN: cp %s %t/main.swift
// RUN: %target-clang -fno-objc-arc %S/Inputs/ObjCWeak/ObjCWeak.m -c -o %t/ObjCWeak.o
// RUN: %target-build-swift %t/main.swift -I %S/Inputs/ObjCWeak/ -Xlinker %t/ObjCWeak.o -o %t/weak_objc_interop -Xfrontend -disable-access-control
// RUN: %target-codesign %t/weak_objc_interop
// RUN: %target-run %t/weak_objc_interop 2>&1 | %FileCheck %s
// REQUIRES: executable_test

// REQUIRES: objc_interop

import Foundation
import ObjCWeak

// Test that instances of pure Swift classes can be referenced using ObjC
// weak references.

class C {
  @objc var description: String {
    return "Swift Object"
  }
}

tryWeakReferencing { C() }
// CHECK:       before giving up strong reference:
// CHECK-NEXT:  Swift Object
// CHECK-NEXT:  after giving up strong reference:
// CHECK-NEXT:  Gone