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Optional chain and unresolved member chain should consider a generic specialization as a chain expression. rdar://140378864
74 lines
2.8 KiB
Swift
74 lines
2.8 KiB
Swift
// RUN: %target-typecheck-verify-swift -verify-additional-prefix swift5-
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// RUN: %target-typecheck-verify-swift -swift-version 6 -verify-additional-prefix swift6-
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extension Int {
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func foo() -> Int {} // expected-note 3 {{'foo()' declared here}}
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var bar: Int {
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get {}
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}
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func baz() -> Int {}
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func baz(_ x: Int = 0) -> Int {}
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func gen<T>() -> T {} // expected-note 2 {{in call to function 'gen()'}} expected-note 2 {{'gen()' declared here}}
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}
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// https://github.com/swiftlang/swift/issues/74857
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func test(i: Int) {
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let _ = i.foo<Int>()
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// expected-swift5-warning@-1 {{cannot explicitly specialize instance method 'foo()'}}
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// expected-swift6-error@-2 {{cannot explicitly specialize instance method 'foo()'}}
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let _ = i.gen<Int>()
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// expected-swift5-warning@-1 {{cannot explicitly specialize instance method 'gen()'}}
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// expected-swift6-error@-2 {{cannot explicitly specialize instance method 'gen()'}}
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// expected-error@-3 {{generic parameter 'T' could not be inferred}}
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let _ = 0.foo<Int>()
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// expected-swift5-warning@-1 {{cannot explicitly specialize instance method 'foo()'}}
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// expected-swift6-error@-2 {{cannot explicitly specialize instance method 'foo()'}}
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let _ = i.gen<Int>
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// expected-swift5-warning@-1 {{cannot explicitly specialize instance method 'gen()'}}
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// expected-swift6-error@-2 {{cannot explicitly specialize instance method 'gen()'}}
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// expected-error@-3 {{generic parameter 'T' could not be inferred}}
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let _ = i.bar<Int>
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// expected-swift5-error@-1 {{cannot specialize non-generic type 'Int'}}
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// expected-swift6-error@-2 {{cannot specialize non-generic type 'Int'}}
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let _ = 0.bar<Int>
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// expected-swift5-error@-1 {{cannot specialize non-generic type 'Int'}}
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// expected-swift6-error@-2 {{cannot specialize non-generic type 'Int'}}
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}
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func testOptionalChain(i: Int?) {
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let _ = i?.foo<Int>()
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// expected-swift5-warning@-1 {{cannot explicitly specialize instance method 'foo()'}}
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// expected-swift6-error@-2 {{cannot explicitly specialize instance method 'foo()'}}
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}
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extension Bool {
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func foo<T>() -> T {} // expected-note {{'foo()' declared here}}
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}
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let _: () -> Bool = false.foo<Int>
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// expected-swift5-warning@-1 {{cannot explicitly specialize instance method 'foo()'}}
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// expected-swift6-error@-2 {{cannot explicitly specialize instance method 'foo()'}}
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func foo(_ x: Int) {
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_ = {
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_ = x<String>
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// expected-swift5-error@-1 {{cannot specialize non-generic type 'Int'}}
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// expected-swift6-error@-2 {{cannot specialize non-generic type 'Int'}}
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}
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}
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do {
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struct Test<T> {
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init(_: (T) -> Void) {} // expected-note {{'init(_:)' declared here}}
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}
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_ = Test.init<Int>({ (_: Int) -> Void in })
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// expected-swift5-warning@-1 {{cannot explicitly specialize initializer 'init(_:)'}}
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// expected-swift6-error@-2 {{cannot explicitly specialize initializer 'init(_:)'}}
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}
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