File: attr_implicitselfcapture.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 (24 lines) | stat: -rw-r--r-- 833 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
// RUN: %target-typecheck-verify-swift

func takeFn(@_implicitSelfCapture fn: @escaping () -> Int) { }
func takeEscapingFn(fn: @escaping () -> Int) { }

class C {
  var property: Int = 0

  func method() { }

  func testMethod() {
    takeFn { // no errors
      method()
      return property
    }

    takeEscapingFn { // expected-note 2 {{capture 'self' explicitly to enable implicit 'self' in this closure}}
      method() // expected-error{{call to method 'method' in closure requires explicit use of 'self' to make capture semantics explicit}}
      // expected-note@-1{{reference 'self.' explicitly}}
      return property // expected-error{{reference to property 'property' in closure requires explicit use of 'self' to make capture semantics explicit}}
      // expected-note@-1{{reference 'self.' explicitly}}
    }
  }
}