blob: 41bb74d03835b7e1802a52ef52d359d75369a24b [file] [log] [blame]
// RUN: %target-run-simple-swift | %FileCheck %s
// REQUIRES: executable_test
// REQUIRES: objc_interop
import CoreFoundation
import Foundation
class SwiftClass { }
func genericCast<T>(_ x: AnyObject, _: T.Type) -> T? {
return x as? T
}
func genericCastUnconditional<T>(_ x: AnyObject, _: T.Type) -> T {
return x as! T
}
// Check _cfTypeID() on a Swift class
let nsObject = NSObject()
let swiftObject = SwiftClass()
assert(CFGetTypeID(nsObject) == CFGetTypeID(swiftObject))
// Check CFString <-> AnyObject
func testCFStringAnyObject() {
// Create a CFString
let cfStr: CFString
= CFStringCreateWithCString(nil, "Swift", CFStringBuiltInEncodings.ASCII.rawValue)
// CHECK: Swift
print(cfStr)
// Convert it to AnyObject
let anyObject: AnyObject = cfStr
// CHECK: Swift
print(anyObject)
// Convert it back to a CFString
let cfStr2 = anyObject as! CFString
// CHECK: Swift
print(cfStr2)
// Conditional cast through a generic to a CFString
if let cfStr3 = genericCast(anyObject, CFString.self) {
// CHECK: Swift
print(cfStr3)
} else {
print("Conditional cast failed")
}
// Forced cast through a generic to a CFString
let cfStr4 = genericCastUnconditional(anyObject, CFString.self)
// CHECK: Swift
print(cfStr4)
// CHECK: done
print("done")
}
testCFStringAnyObject()
// Check CFString.Type <-> AnyObject.Type
func testCFStringAnyObjectType() {
let cfStr: CFString
= CFStringCreateWithCString(nil, "Swift", CFStringBuiltInEncodings.ASCII.rawValue)
let cfStrType = type(of: cfStr)
// CHECK: [[STRING_CLASS:(NS|CF).*String]]
print(cfStrType)
// Convert to AnyObject.Type
let anyObjectType: AnyObject.Type = cfStrType
// CHECK: [[STRING_CLASS]]
print(anyObjectType)
// Convert back to CFString.Type
let cfStrType2 = anyObjectType as! CFString.Type
// CHECK: [[STRING_CLASS]]
print(cfStrType2)
// CHECK: done
print("done")
}
testCFStringAnyObjectType()