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// RUN: %empty-directory(%t)
// RUN: %target-swiftc_driver -emit-objc-header %S/../Inputs/objc-escape/DangerousEscaper.swift -emit-objc-header-path %t/DangerousEscaper.h
// RUN: %target-clang -c %S/../Inputs/objc-escape/Escaper.m -fobjc-arc -I %t -o %t/Escaper.o
// RUN: %target-swiftc_driver -import-objc-header %S/../Inputs/objc-escape/Escaper.h %S/../Inputs/objc-escape/DangerousEscaper.swift %s %t/Escaper.o -o %t/TestObjcProto
// RUN: %target-codesign %t/TestObjcProto
// RUN: %target-run %t/TestObjcProto 2>&1 | %FileCheck %s
// REQUIRES: executable_test
// REQUIRES: objc_interop
import Foundation
import Dispatch
import StdlibUnittest
var testSuite = TestSuite("ObjectiveCClosureEscape")
public func couldActuallyEscape(_ closure: @escaping () -> (), _ villain: DangerousEscaper) {
villain.mightBeNaughty(closure)
}
class Harmless : DangerousEscaper {
@objc
func mightBeNaughty(_ mayActuallyEscape: () -> ()) {
mayActuallyEscape()
}
}
class Printer {
func printIt() {
print("Printer")
}
}
public func test() {
var x = Printer()
couldActuallyEscape( {x.printIt() } , Harmless())
var y = Escaper()
couldActuallyEscape( {x.printIt() } , y as! DangerousEscaper)
}
testSuite.test("testEscaping") {
// CHECK: closure argument passed as @noescape to Objective-C has escaped: file {{.*}}main.swift, line 20, column 26
expectCrashLater()
test()
}
runAllTests()
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