Files
swift-mirror/test/RemoteAST/existentials_objc.swift
Slava Pestov 82f8d3f2e9 RemoteAST: Try to fix a use-after-free in swift-remoteast-test
Fixes <rdar://problem/48067187>.

We keep a global context alive now, but we have to destroy it before
Swift's ASTContext is torn down.
2019-02-21 16:39:58 -05:00

48 lines
1.3 KiB
Swift

// RUN: %target-swift-remoteast-test-with-sdk %s | %FileCheck %s
// REQUIRES: swift-remoteast-test
// REQUIRES: objc_interop
import Foundation
@_silgen_name("printDynamicTypeAndAddressForExistential")
func printDynamicTypeAndAddressForExistential<T>(_: T)
@_silgen_name("stopRemoteAST")
func stopRemoteAST()
// CHECK: NSObject
printDynamicTypeAndAddressForExistential(NSObject() as AnyObject)
// Print tagged pointer types three times to ensure the caching works.
// CHECK: NSNumber
printDynamicTypeAndAddressForExistential(NSNumber(123) as AnyObject)
// CHECK: NSNumber
printDynamicTypeAndAddressForExistential(NSNumber(123) as AnyObject)
// CHECK: NSNumber
printDynamicTypeAndAddressForExistential(NSNumber(123) as AnyObject)
// CHECK: NSString
printDynamicTypeAndAddressForExistential(NSString("hello") as AnyObject)
// CHECK: NSString
printDynamicTypeAndAddressForExistential(NSString("hello") as AnyObject)
// CHECK: NSString
printDynamicTypeAndAddressForExistential(NSString("hello") as AnyObject)
// Bridged NSError.
class ClassError : NSError {
required init(coder: NSCoder) { fatalError() }
init() {
super.init(domain: "ClassError", code: 10, userInfo: [:])
}
}
// CHECK: ClassError
printDynamicTypeAndAddressForExistential(ClassError() as Error)
stopRemoteAST()