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//===--- subclass_existentials_objc.swift ---------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// RUN: %empty-directory(%t)
// RUN: %target-build-swift %s -o %t/a.out
// RUN: %target-codesign %t/a.out
// RUN: %target-run %t/a.out
// REQUIRES: executable_test
// REQUIRES: objc_interop
//
import StdlibUnittest
import Foundation
// FIXME: Actually write proper tests here.
func cast<T, U>(_ t: T, to: U.Type) -> U? {
return t as? U
}
protocol CP : class {}
@objc protocol OP {}
class C {}
class D : C, OP {}
var SubclassExistentialsTestSuite = TestSuite("SubclassExistentials")
SubclassExistentialsTestSuite.test("Metatype self-conformance") {
expectFalse(CP.self is AnyObject.Type)
expectEqual(OP.self, OP.self as AnyObject.Type)
expectNil(cast(CP.self, to: AnyObject.Type.self))
// FIXME
expectNil(cast(OP.self, to: AnyObject.Type.self))
// FIXME: Sema says 'always true', runtime says false.
//
// Runtime code had a FIXME in it already, so I think Sema is right.
expectFalse(OP.self is AnyObject.Type)
expectFalse((C & OP).self is AnyObject.Type)
expectFalse((C & OP).self is OP.Type)
expectTrue(D.self is (C & OP).Type)
expectFalse(OP.self is (C & OP).Type)
}
runAllTests()
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