mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
35f1370f6e
Also stop suggesting a '?' fix-it for casts, where it is not likely to be helpful because the common intention is either to force the optional or declare an IUO.
421 lines
21 KiB
Swift
421 lines
21 KiB
Swift
// RUN: %target-typecheck-verify-swift -swift-version 5 -verify-additional-prefix swift5-
|
|
// RUN: %target-typecheck-verify-swift -swift-version 4 -verify-additional-prefix swift4-
|
|
|
|
// These are all legal uses of '!'.
|
|
struct Fine {
|
|
var value: Int!
|
|
|
|
func m(_ unnamed: Int!, named: Int!) -> Int! { return unnamed }
|
|
static func s(_ unnamed: Int!, named: Int!) -> Int! { return named }
|
|
|
|
init(_ value: Int) { self.value = value }
|
|
init!() { return nil }
|
|
|
|
subscript (
|
|
index: Int!
|
|
) -> Int! {
|
|
return index
|
|
}
|
|
|
|
subscript<T> (
|
|
index: T!
|
|
) -> T! {
|
|
return index
|
|
}
|
|
}
|
|
let _: ImplicitlyUnwrappedOptional<Int> = 1 // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{8-35=Optional}}
|
|
let _: ImplicitlyUnwrappedOptional = 1 // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}
|
|
|
|
extension ImplicitlyUnwrappedOptional {} // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}
|
|
|
|
func functionSpelling(
|
|
_: ImplicitlyUnwrappedOptional<Int> // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{6-33=Optional}}
|
|
) -> ImplicitlyUnwrappedOptional<Int> { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{6-33=Optional}}
|
|
return 1
|
|
}
|
|
|
|
// Okay, like in the method case.
|
|
func functionSigil(
|
|
_: Int!
|
|
) -> Int! {
|
|
return 1
|
|
}
|
|
|
|
// Not okay because '!' is not at the top level of the type.
|
|
func functionSigilArray(
|
|
_: [Int!]
|
|
// expected-swift4-warning@-1:10 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:10 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:10 {{use '?' instead}}{{10-11=?}}
|
|
) -> [Int!] {
|
|
// expected-swift4-warning@-1:10 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:10 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:10 {{use '?' instead}}{{10-11=?}}
|
|
return [1]
|
|
}
|
|
|
|
func genericFunction<T>(
|
|
iuo: ImplicitlyUnwrappedOptional<T> // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{8-35=Optional}}
|
|
) -> ImplicitlyUnwrappedOptional<T> { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{6-33=Optional}}
|
|
return iuo
|
|
}
|
|
|
|
// Okay, like in the non-generic case.
|
|
func genericFunctionSigil<T>(
|
|
iuo: T!
|
|
) -> T! {
|
|
return iuo
|
|
}
|
|
|
|
// FIXME: Duplicate diagnostics in -swift-version 4
|
|
func genericFunctionSigilArray<T>(
|
|
iuo: [T!]
|
|
// expected-swift4-warning@-1:10 2 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:10 {{'!' is not allowed here}}{{none}}
|
|
// expected-swift4-note@-3:10 2 {{use '?' instead}}{{10-11=?}}
|
|
// expected-swift5-note@-4:10 {{use '?' instead}}{{10-11=?}}
|
|
) -> [T!] {
|
|
// expected-swift4-warning@-1:8 2 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:8 {{'!' is not allowed here}}{{none}}
|
|
// expected-swift4-note@-3:8 2 {{use '?' instead}}{{8-9=?}}
|
|
// expected-swift5-note@-4:8 {{use '?' instead}}{{8-9=?}}
|
|
return iuo
|
|
}
|
|
|
|
protocol P {
|
|
associatedtype T
|
|
associatedtype U
|
|
}
|
|
|
|
struct S : P {
|
|
typealias T = ImplicitlyUnwrappedOptional<Int> // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{17-44=Optional}}
|
|
typealias U = Optional<ImplicitlyUnwrappedOptional<Int>> // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{26-53=Optional}}
|
|
|
|
typealias V = Int!
|
|
// expected-swift4-warning@-1:20 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:20 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:20 {{use '?' instead}}{{20-21=?}}
|
|
typealias W = Int!?
|
|
// expected-swift4-warning@-1:20 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:20 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:20 {{use '?' instead}}{{20-21=?}}
|
|
|
|
var x: V
|
|
var y: W
|
|
var fn1: (Int!) -> Int
|
|
// expected-swift4-warning@-1:16 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:16 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:16 {{use '?' instead}}{{16-17=?}}
|
|
var fn2: (Int) -> Int!
|
|
// expected-swift4-warning@-1:24 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:24 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:24 {{use '?' instead}}{{24-25=?}}
|
|
|
|
subscript (
|
|
index: ImplicitlyUnwrappedOptional<Int> // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{12-39=Optional}}
|
|
) -> ImplicitlyUnwrappedOptional<Int> { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{12-39=Optional}}
|
|
return index
|
|
}
|
|
|
|
subscript<T> (
|
|
index: ImplicitlyUnwrappedOptional<T> // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{12-39=Optional}}
|
|
) -> ImplicitlyUnwrappedOptional<T> { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{12-39=Optional}}
|
|
return index
|
|
}
|
|
}
|
|
|
|
func generic<T : P>(_: T) where T.T == ImplicitlyUnwrappedOptional<Int> { } // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{40-67=Optional}}
|
|
func genericOptIUO<T : P>(_: T) where T.U == Optional<ImplicitlyUnwrappedOptional<Int>> {} // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{55-82=Optional}}
|
|
|
|
func testClosure() -> Int {
|
|
return {
|
|
(i: ImplicitlyUnwrappedOptional<Int>) // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{9-36=Optional}}
|
|
-> ImplicitlyUnwrappedOptional<Int> in // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{9-36=Optional}}
|
|
return i
|
|
}(1)!
|
|
}
|
|
|
|
_ = Array<Int!>()
|
|
// expected-swift4-warning@-1:14 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:14 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:14 {{use '?' instead}}{{14-15=?}}
|
|
let _: Array<Int!> = [1]
|
|
// expected-swift4-warning@-1:17 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:17 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:17 {{use '?' instead}}{{17-18=?}}
|
|
_ = [Int!]()
|
|
// expected-swift4-warning@-1:9 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:9 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:9 {{use '?' instead}}{{9-10=?}}
|
|
// <rdar://problem/21684837> typeexpr not being formed for postfix !
|
|
let _ = [Int!](repeating: nil, count: 2)
|
|
// expected-swift4-warning@-1:13 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:13 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:13 {{use '?' instead}}{{13-14=?}}
|
|
let _: [Int!] = [1]
|
|
// expected-swift4-warning@-1:12 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:12 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:12 {{use '?' instead}}{{12-13=?}}
|
|
|
|
// FIXME: Duplicate diagnostics in -swift-version 4
|
|
_ = Optional<Int!>(nil)
|
|
// expected-swift4-warning@-1:17 2 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:17 {{'!' is not allowed here}}{{none}}
|
|
// expected-swift4-note@-3:17 2 {{use '?' instead}}{{17-18=?}}
|
|
// expected-swift5-note@-4:17 {{use '?' instead}}{{17-18=?}}
|
|
let _: Optional<Int!> = nil
|
|
// expected-swift4-warning@-1:20 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:20 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:20 {{use '?' instead}}{{20-21=?}}
|
|
|
|
// FIXME: Duplicate diagnostics in -swift-version 4
|
|
_ = Int!?(0)
|
|
// expected-swift4-warning@-1:8 2 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:8 {{'!' is not allowed here}}{{none}}
|
|
// expected-swift4-note@-3:8 2 {{use '?' instead}}{{8-9=?}}
|
|
// expected-swift5-note@-4:8 {{use '?' instead}}{{8-9=?}}
|
|
let _: Int!? = 0
|
|
// expected-swift4-warning@-1:11 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:11 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:11 {{use '?' instead}}{{11-12=?}}
|
|
_ = (
|
|
Int!,
|
|
// expected-swift4-warning@-1:6 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:6 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:6 {{use '?' instead}}{{6-7=?}}
|
|
Float!,
|
|
// expected-swift4-warning@-1:8 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:8 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:8 {{use '?' instead}}{{8-9=?}}
|
|
String!
|
|
// expected-swift4-warning@-1:9 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:9 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:9 {{use '?' instead}}{{9-10=?}}
|
|
)(1, 2.0, "3")
|
|
let _: (
|
|
Int!,
|
|
// expected-swift4-warning@-1:6 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:6 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:6 {{use '?' instead}}{{6-7=?}}
|
|
Float!,
|
|
// expected-swift4-warning@-1:8 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:8 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:8 {{use '?' instead}}{{8-9=?}}
|
|
String!
|
|
// expected-swift4-warning@-1:9 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:9 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:9 {{use '?' instead}}{{9-10=?}}
|
|
) = (1, 2.0, "3")
|
|
|
|
struct Generic<T, U, C> {
|
|
init(_ t: T, _ u: U, _ c: C) {}
|
|
}
|
|
_ = Generic<Int!,
|
|
// expected-swift4-warning@-1:16 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:16 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:16 {{use '?' instead}}{{16-17=?}}
|
|
Float!,
|
|
// expected-swift4-warning@-1:18 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:18 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:18 {{use '?' instead}}{{18-19=?}}
|
|
String!>(1, 2.0, "3")
|
|
// expected-swift4-warning@-1:19 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:19 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:19 {{use '?' instead}}{{19-20=?}}
|
|
let _: Generic<Int!,
|
|
// expected-swift4-warning@-1:19 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:19 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:19 {{use '?' instead}}{{19-20=?}}
|
|
Float!,
|
|
// expected-swift4-warning@-1:21 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:21 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:21 {{use '?' instead}}{{21-22=?}}
|
|
String!> = Generic(1, 2.0, "3")
|
|
// expected-swift4-warning@-1:22 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:22 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:22 {{use '?' instead}}{{22-23=?}}
|
|
|
|
extension Optional {
|
|
typealias Wrapped = Wrapped
|
|
}
|
|
let _: Int!.Wrapped
|
|
// expected-swift4-warning@-1:11 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:11 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:11 {{use '?' instead}}{{11-12=?}}
|
|
let _: (Int!).Wrapped
|
|
// expected-swift4-warning@-1:12 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:12 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:12 {{use '?' instead}}{{12-13=?}}
|
|
|
|
func vararg(_ first: Int, more: Int!...) {
|
|
// expected-swift4-warning@-1:36 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:36 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:36 {{use '?' instead}}{{36-37=?}}
|
|
}
|
|
|
|
func varargIdentifier(_ first: Int, more: ImplicitlyUnwrappedOptional<Int>...) { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{43-70=Optional}}
|
|
}
|
|
|
|
func iuoInTuple() -> (Int!) {
|
|
// expected-swift4-warning@-1:26 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:26 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:26 {{use '?' instead}}{{26-27=?}}
|
|
return 1
|
|
}
|
|
|
|
func iuoInTupleIdentifier() -> (ImplicitlyUnwrappedOptional<Int>) { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{33-60=Optional}}
|
|
return 1
|
|
}
|
|
|
|
func iuoInTuple2() -> (Float, Int!) {
|
|
// expected-swift4-warning@-1:34 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:34 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:34 {{use '?' instead}}{{34-35=?}}
|
|
return (1.0, 1)
|
|
}
|
|
|
|
func iuoInTuple2Identifier() -> (Float, ImplicitlyUnwrappedOptional<Int>) { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{41-68=Optional}}
|
|
return (1.0, 1)
|
|
}
|
|
|
|
func takesFunc(_ fn: (Int!) -> Int) -> Int {
|
|
// expected-swift4-warning@-1:26 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:26 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:26 {{use '?' instead}}{{26-27=?}}
|
|
return fn(0)
|
|
}
|
|
|
|
func takesFuncIdentifier(_ fn: (ImplicitlyUnwrappedOptional<Int>) -> Int) -> Int { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{33-60=Optional}}
|
|
return fn(0)
|
|
}
|
|
|
|
func takesFunc2(_ fn: (Int) -> Int!) -> Int {
|
|
// expected-swift4-warning@-1:35 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:35 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:35 {{use '?' instead}}{{35-36=?}}
|
|
return fn(0)!
|
|
}
|
|
|
|
func takesFunc2Identifier(_ fn: (Int) -> ImplicitlyUnwrappedOptional<Int>) -> Int { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{42-69=Optional}}
|
|
return fn(0)!
|
|
}
|
|
|
|
func returnsFunc() -> (Int!) -> Int {
|
|
// expected-swift4-warning@-1:27 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:27 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:27 {{use '?' instead}}{{27-28=?}}
|
|
return { $0! }
|
|
}
|
|
|
|
func returnsFuncIdentifier() -> (ImplicitlyUnwrappedOptional<Int>) -> Int { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{34-61=Optional}}
|
|
return { $0! }
|
|
}
|
|
|
|
func returnsFunc2() -> (Int) -> Int! {
|
|
// expected-swift4-warning@-1:36 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:36 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:36 {{use '?' instead}}{{36-37=?}}
|
|
return { $0 }
|
|
}
|
|
|
|
func returnsFunc2Identifier() -> (Int) -> ImplicitlyUnwrappedOptional<Int> { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{43-70=Optional}}
|
|
return { $0 }
|
|
}
|
|
|
|
func opaqueResult() -> (some Equatable)! { return 1 }
|
|
// expected-swift4-warning@-1:40 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:40 {{'!' is not allowed here}}{{none}}
|
|
// expected-note@-3:40 {{use '?' instead}}{{40-41=?}}
|
|
|
|
let x0 = 1 as ImplicitlyUnwrappedOptional // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{15-42=Optional}}
|
|
|
|
let x: Int? = 1
|
|
let y0: Int = x as Int!
|
|
// expected-swift4-warning@-1:23 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:23 {{'!' is not allowed here}}{{none}}
|
|
let y1: Int = (x as Int!)!
|
|
// expected-swift4-warning@-1:24 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:24 {{'!' is not allowed here}}{{none}}
|
|
let z0: Int = x as! Int!
|
|
// expected-swift4-warning@-1:24 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:24 {{'!' is not allowed here}}{{none}}
|
|
// expected-warning@-3 {{forced cast from 'Int?' to 'Int' only unwraps optionals; did you mean to use '!'?}}
|
|
let z1: Int = (x as! Int!)!
|
|
// expected-swift4-warning@-1:25 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:25 {{'!' is not allowed here}}{{none}}
|
|
// expected-warning@-3 {{forced cast from 'Int?' to 'Int' only unwraps optionals; did you mean to use '!'?}}
|
|
let w0: Int = (x as? Int!)!
|
|
// expected-swift4-warning@-1:25 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:25 {{'!' is not allowed here}}{{none}}
|
|
// expected-warning@-3 {{conditional cast from 'Int?' to 'Int?' always succeeds}}
|
|
let w1: Int = (x as? Int!)!!
|
|
// expected-swift4-warning@-1:25 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:25 {{'!' is not allowed here}}{{none}}
|
|
// expected-warning@-3 {{conditional cast from 'Int?' to 'Int?' always succeeds}}
|
|
|
|
func overloadedByOptionality(_ a: inout Int!) {}
|
|
// expected-note@-1 {{'overloadedByOptionality' previously declared here}}
|
|
func overloadedByOptionality(_ a: inout Int?) {}
|
|
// expected-error@-1 {{invalid redeclaration of 'overloadedByOptionality'}}
|
|
// expected-note@-2 {{optional parameter is of same type as implicitly unwrapped optional parameter}}
|
|
|
|
struct T {
|
|
let i: Int!
|
|
var j: Int!
|
|
let k: Int
|
|
}
|
|
|
|
func select(i: Int!, m: Int, t: T) {
|
|
let _ = i ? i : m // expected-error {{optional type 'Int?' cannot be used as a boolean; test for '!= nil' instead}} {{11-11=(}} {{12-12= != nil)}}
|
|
let _ = t.i ? t.j : t.k // expected-error {{optional type 'Int?' cannot be used as a boolean; test for '!= nil' instead}} {{11-11=(}} {{14-14= != nil)}}
|
|
}
|
|
|
|
class B {}
|
|
class D : B {
|
|
var i: Int!
|
|
}
|
|
|
|
func coerceToIUO(d: D?) -> B {
|
|
return d as B!
|
|
// expected-swift4-warning@-1:16 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:16 {{using '!' is not allowed here}}
|
|
}
|
|
|
|
func forcedDowncastToOptional(b: B?) -> D? {
|
|
return b as! D!
|
|
// expected-swift4-warning@-1:17 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:17 {{using '!' is not allowed here}}
|
|
}
|
|
|
|
func forcedDowncastToObject(b: B?) -> D {
|
|
return b as! D!
|
|
// expected-swift4-warning@-1:17 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:17 {{using '!' is not allowed here}}
|
|
}
|
|
|
|
func forcedDowncastToObjectIUOMember(b: B?) -> Int {
|
|
return (b as! D!).i
|
|
// expected-swift4-warning@-1:18 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:18 {{using '!' is not allowed here}}
|
|
}
|
|
|
|
func forcedUnwrapViaForcedCast(b: B?) -> B {
|
|
return b as! B! // expected-warning {{forced cast from 'B?' to 'B' only unwraps optionals; did you mean to use '!'?}}
|
|
// expected-swift4-warning@-1:17 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:17 {{using '!' is not allowed here}}
|
|
}
|
|
|
|
func conditionalDowncastToOptional(b: B?) -> D? {
|
|
return b as? D!
|
|
// expected-swift4-warning@-1:17 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-2:17 {{using '!' is not allowed here}}
|
|
}
|
|
|
|
func conditionalDowncastToObject(b: B?) -> D {
|
|
return b as? D! // expected-error {{value of optional type 'D?' must be unwrapped to a value of type 'D'}}
|
|
// expected-note@-1 {{coalesce using '??' to provide a default when the optional value contains 'nil'}}
|
|
// expected-note@-2 {{force-unwrap using '!' to abort execution if the optional value contains 'nil'}}
|
|
// expected-swift4-warning@-3:17 {{using '!' here is deprecated; this is an error in the Swift 5 language mode}}{{none}}
|
|
// expected-swift5-error@-4:17 {{using '!' is not allowed here}}
|
|
}
|