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// RUN: %target-run-simple-swift | %FileCheck %s
// REQUIRES: executable_test
// REQUIRES: objc_interop
import Foundation
_ = JSONDecoder()
class Canary: NSObject {
deinit {
print("died")
}
}
var CanaryAssocObjectHandle: UInt8 = 0
// Attach an associated object with a loud deinit so we can see that the
// object died.
func hangCanary(_ o: AnyObject) {
objc_setAssociatedObject(o, &CanaryAssocObjectHandle, Canary(),
.OBJC_ASSOCIATION_RETAIN_NONATOMIC)
}
// CHECK-LABEL: NSData:
print("NSData:")
autoreleasepool {
var bytes: UnsafeMutablePointer<UInt8>
repeat {
let data = NSData(bytes: [2, 3, 5, 7] as [UInt8], length: 4)
hangCanary(data)
bytes = UnsafeMutablePointer<UInt8>(mutating: data.bytes.assumingMemoryBound(to: UInt8.self))
} while false // CHECK-NOT: died
print(bytes[0]) // CHECK: 2
print(bytes[1]) // CHECK-NEXT: 3
print(bytes[2]) // CHECK-NEXT: 5
print(bytes[3]) // CHECK-NEXT: 7
} // CHECK-NEXT: died
// CHECK-LABEL: AnyObject:
print("AnyObject:")
autoreleasepool {
var bytes: UnsafeMutablePointer<UInt8>
repeat {
let data = NSData(bytes: [11, 13, 17, 19] as [UInt8], length: 4)
hangCanary(data)
let dataAsAny: AnyObject = data
bytes = UnsafeMutablePointer<UInt8>(mutating: dataAsAny.bytes!.assumingMemoryBound(to: UInt8.self))
} while false // CHECK-NOT: died
print(bytes[0]) // CHECK: 11
print(bytes[1]) // CHECK-NEXT: 13
print(bytes[2]) // CHECK-NEXT: 17
print(bytes[3]) // CHECK-NEXT: 19
} // CHECK-NEXT: died
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