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d55eed46e8
* [Sema] Implementing is runtime check always true diagnostic as a fix * [AST] Implement getWithoutThrows on function type * [CSSimplify] Detect that checked cast types conversion is always true and record warning fix * [test] Some additional test cases for SR-13789 * [Sema] Fixing typo on fix name * [Sema] Move and adjust the ConditionalCast diagnostics to the fix format * [Sema] Remove some checked cast diagnostics from check constraints and move to fix * [Sema] Renaming checked cast coercible types fix * [Sema] Some adjustments and rewrite on the logic for downcast record fix * [Sema] Move logic of runtime function type to AllowUnsupportedRuntimeCheckedCast::attempt * [Sema] Abstract checked cast fix logic to static function and minor adjustments * [Sema] Renamings from review
226 lines
11 KiB
Swift
226 lines
11 KiB
Swift
// RUN: %target-typecheck-verify-swift -swift-version 5
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// These are all legal uses of '!'.
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struct Fine {
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var value: Int!
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func m(_ unnamed: Int!, named: Int!) -> Int! { return unnamed }
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static func s(_ unnamed: Int!, named: Int!) -> Int! { return named }
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init(_ value: Int) { self.value = value }
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init!() { return nil }
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subscript (
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index: Int!
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) -> Int! {
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return index
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}
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subscript<T> (
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index: T!
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) -> T! {
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return index
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}
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}
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let _: ImplicitlyUnwrappedOptional<Int> = 1 // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{8-35=Optional}}
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let _: ImplicitlyUnwrappedOptional = 1 // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}
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extension ImplicitlyUnwrappedOptional {} // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}
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func functionSpelling(
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_: ImplicitlyUnwrappedOptional<Int> // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{6-33=Optional}}
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) -> ImplicitlyUnwrappedOptional<Int> { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{6-33=Optional}}
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return 1
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}
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// Okay, like in the method case.
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func functionSigil(
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_: Int!
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) -> Int! {
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return 1
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}
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// Not okay because '!' is not at the top level of the type.
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func functionSigilArray(
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_: [Int!] // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{10-11=?}}
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) -> [Int!] { // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{10-11=?}}
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return [1]
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}
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func genericFunction<T>(
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iuo: ImplicitlyUnwrappedOptional<T> // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{8-35=Optional}}
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) -> ImplicitlyUnwrappedOptional<T> { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{6-33=Optional}}
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return iuo
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}
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// Okay, like in the non-generic case.
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func genericFunctionSigil<T>(
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iuo: T!
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) -> T! {
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return iuo
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}
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func genericFunctionSigilArray<T>(
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// FIXME: We validate these types multiple times resulting in multiple diagnostics
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iuo: [T!] // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{10-11=?}}
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// expected-error@-1 {{'!' is not allowed here; perhaps '?' was intended?}}{{10-11=?}}
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) -> [T!] { // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{8-9=?}}
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// expected-error@-1 {{'!' is not allowed here; perhaps '?' was intended?}}{{8-9=?}}
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return iuo
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}
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protocol P {
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associatedtype T
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associatedtype U
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}
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struct S : P {
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typealias T = ImplicitlyUnwrappedOptional<Int> // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{17-44=Optional}}
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typealias U = Optional<ImplicitlyUnwrappedOptional<Int>> // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{26-53=Optional}}
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typealias V = Int! // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{20-21=?}}
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typealias W = Int!? // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{20-21=?}}
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var x: V
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var y: W
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var fn1: (Int!) -> Int // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{16-17=?}}
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var fn2: (Int) -> Int! // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{24-25=?}}
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subscript (
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index: ImplicitlyUnwrappedOptional<Int> // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{12-39=Optional}}
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) -> ImplicitlyUnwrappedOptional<Int> { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{12-39=Optional}}
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return index
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}
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subscript<T> (
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index: ImplicitlyUnwrappedOptional<T> // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{12-39=Optional}}
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) -> ImplicitlyUnwrappedOptional<T> { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{12-39=Optional}}
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return index
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}
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}
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func generic<T : P>(_: T) where T.T == ImplicitlyUnwrappedOptional<Int> { } // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{40-67=Optional}}
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func genericOptIUO<T : P>(_: T) where T.U == Optional<ImplicitlyUnwrappedOptional<Int>> {} // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{55-82=Optional}}
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func testClosure() -> Int {
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return {
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(i: ImplicitlyUnwrappedOptional<Int>) // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{9-36=Optional}}
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-> ImplicitlyUnwrappedOptional<Int> in // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{9-36=Optional}}
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return i
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}(1)!
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}
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_ = Array<Int!>() // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{14-15=?}}
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let _: Array<Int!> = [1] // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{17-18=?}}
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_ = [Int!]() // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{9-10=?}}
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let _: [Int!] = [1] // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{12-13=?}}
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_ = Optional<Int!>(nil) // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{17-18=?}}
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let _: Optional<Int!> = nil // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{20-21=?}}
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_ = Int!?(0) // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{8-9=?}}
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let _: Int!? = 0 // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{11-12=?}}
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_ = (
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Int!, // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{6-7=?}}
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Float!, // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{8-9=?}}
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String! // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{9-10=?}}
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)(1, 2.0, "3")
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let _: (
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Int!, // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{6-7=?}}
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Float!, // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{8-9=?}}
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String! // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{9-10=?}}
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) = (1, 2.0, "3")
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struct Generic<T, U, C> {
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init(_ t: T, _ u: U, _ c: C) {}
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}
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_ = Generic<Int!, // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{16-17=?}}
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Float!, // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{18-19=?}}
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String!>(1, 2.0, "3") // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{19-20=?}}
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let _: Generic<Int!, // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{19-20=?}}
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Float!, // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{21-22=?}}
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String!> = Generic(1, 2.0, "3") // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{22-23=?}}
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func vararg(_ first: Int, more: Int!...) { // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{36-37=?}}
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}
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func varargIdentifier(_ first: Int, more: ImplicitlyUnwrappedOptional<Int>...) { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{43-70=Optional}}
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}
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func iuoInTuple() -> (Int!) { // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{26-27=?}}
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return 1
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}
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func iuoInTupleIdentifier() -> (ImplicitlyUnwrappedOptional<Int>) { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{33-60=Optional}}
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return 1
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}
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func iuoInTuple2() -> (Float, Int!) { // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{34-35=?}}
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return (1.0, 1)
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}
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func iuoInTuple2Identifier() -> (Float, ImplicitlyUnwrappedOptional<Int>) { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{41-68=Optional}}
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return (1.0, 1)
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}
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func takesFunc(_ fn: (Int!) -> Int) -> Int { // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{26-27=?}}
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return fn(0)
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}
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func takesFuncIdentifier(_ fn: (ImplicitlyUnwrappedOptional<Int>) -> Int) -> Int { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{33-60=Optional}}
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return fn(0)
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}
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func takesFunc2(_ fn: (Int) -> Int!) -> Int { // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{35-36=?}}
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return fn(0)!
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}
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func takesFunc2Identifier(_ fn: (Int) -> ImplicitlyUnwrappedOptional<Int>) -> Int { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{42-69=Optional}}
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return fn(0)!
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}
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func returnsFunc() -> (Int!) -> Int { // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{27-28=?}}
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return { $0! }
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}
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func returnsFuncIdentifier() -> (ImplicitlyUnwrappedOptional<Int>) -> Int { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{34-61=Optional}}
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return { $0! }
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}
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func returnsFunc2() -> (Int) -> Int! { // expected-error {{'!' is not allowed here; perhaps '?' was intended?}}{{36-37=?}}
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return { $0 }
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}
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func returnsFunc2Identifier() -> (Int) -> ImplicitlyUnwrappedOptional<Int> { // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{43-70=Optional}}
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return { $0 }
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}
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let x0 = 1 as ImplicitlyUnwrappedOptional // expected-error {{'ImplicitlyUnwrappedOptional' has been renamed to 'Optional'}}{{15-42=Optional}}
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let x: Int? = 1
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let y0: Int = x as Int! // expected-error {{using '!' is not allowed here; perhaps '?' was intended?}}{{23-24=?}}
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let y1: Int = (x as Int!)! // expected-error {{using '!' is not allowed here; perhaps '?' was intended?}}{{24-25=?}}
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let z0: Int = x as! Int! // expected-error {{using '!' is not allowed here; perhaps '?' was intended?}}{{24-25=?}}
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// expected-warning@-1 {{forced cast from 'Int?' to 'Int' only unwraps optionals; did you mean to use '!'?}}
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let z1: Int = (x as! Int!)! // expected-error {{using '!' is not allowed here; perhaps '?' was intended?}}{{25-26=?}}
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// expected-warning@-1 {{forced cast from 'Int?' to 'Int' only unwraps optionals; did you mean to use '!'?}}
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let w0: Int = (x as? Int!)! // expected-warning {{conditional cast from 'Int?' to 'Int?' always succeeds}}
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// expected-error@-1 {{using '!' is not allowed here; perhaps '?' was intended?}}{{25-26=?}}
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let w1: Int = (x as? Int!)!! // expected-warning {{conditional cast from 'Int?' to 'Int?' always succeeds}}
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// expected-error@-1 {{using '!' is not allowed here; perhaps '?' was intended?}}{{25-26=?}}
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func overloadedByOptionality(_ a: inout Int!) {}
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// expected-note@-1 {{'overloadedByOptionality' previously declared here}}
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func overloadedByOptionality(_ a: inout Int?) {}
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// expected-error@-1 {{invalid redeclaration of 'overloadedByOptionality'}}
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// expected-note@-2 {{optional parameter is of same type as implicitly unwrapped optional parameter}}
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struct T {
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let i: Int!
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var j: Int!
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let k: Int
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}
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func select(i: Int!, m: Int, t: T) {
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let _ = i ? i : m // expected-error {{optional type 'Int?' cannot be used as a boolean; test for '!= nil' instead}} {{11-11=(}} {{12-12= != nil)}}
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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)}}
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}
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