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43775e817d
Disallow implicit conversion or arguments from Array, String, and InOut (formed by &) to pointer types if the argument is for an @autoclosure parameter. These conversions were really only intended to be used for C/ObjC interop, and in some contexts like autoclosures they are not safe. Fixes: rdar://problem/31538995
41 lines
2.7 KiB
Swift
41 lines
2.7 KiB
Swift
// RUN: %target-typecheck-verify-swift
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func takesAutoclosure<T>(_ lhs: T, _ rhs: @autoclosure () throws -> T) {}
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func test(
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_ rawPtr: UnsafeRawPointer,
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_ mutRawPtr: UnsafeMutableRawPointer,
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_ mutPtr: UnsafeMutablePointer<Int>,
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_ ptr: UnsafePointer<Int>,
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_ ptrI8: UnsafePointer<Int8>,
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_ ptrU8: UnsafePointer<UInt8>,
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_ ptrVoid: UnsafePointer<Void> // expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
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) {
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var i: Int = 0
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var a: [Int] = [0]
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let s = "string"
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takesAutoclosure(rawPtr, &i) // expected-error {{'&' used with non-inout argument of type 'Int'}}
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takesAutoclosure(mutRawPtr, &i) // expected-error {{'&' used with non-inout argument of type 'Int'}}
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takesAutoclosure(mutPtr, &i) // expected-error {{'&' used with non-inout argument of type 'Int'}}
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takesAutoclosure(ptr, &i) // expected-error {{'&' used with non-inout argument of type 'Int'}}
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takesAutoclosure(rawPtr, &a) // expected-error {{'&' used with non-inout argument of type '[Int]'}}
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takesAutoclosure(mutRawPtr, &a) // expected-error {{'&' used with non-inout argument of type '[Int]'}}
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takesAutoclosure(mutPtr, &a) // expected-error {{'&' used with non-inout argument of type '[Int]'}}
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takesAutoclosure(ptr, &a) // expected-error {{'&' used with non-inout argument of type '[Int]'}}
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takesAutoclosure(rawPtr, a) // expected-error {{cannot invoke 'takesAutoclosure' with an argument list of type '(UnsafeRawPointer, [Int])'}}
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// expected-note@-1 {{expected an argument list of type '(T, @autoclosure () throws -> T)'}}
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takesAutoclosure(ptr, a) // expected-error {{cannot invoke 'takesAutoclosure' with an argument list of type '(UnsafePointer<Int>, [Int])'}}
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// expected-note@-1 {{expected an argument list of type '(T, @autoclosure () throws -> T)'}}
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takesAutoclosure(rawPtr, s) // expected-error {{cannot invoke 'takesAutoclosure' with an argument list of type '(UnsafeRawPointer, String)'}}
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// expected-note@-1 {{expected an argument list of type '(T, @autoclosure () throws -> T)'}}
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takesAutoclosure(ptrI8, s) // expected-error {{cannot invoke 'takesAutoclosure' with an argument list of type '(UnsafePointer<Int8>, String)'}}
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// expected-note@-1 {{expected an argument list of type '(T, @autoclosure () throws -> T)'}}
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takesAutoclosure(ptrU8, s) // expected-error {{cannot invoke 'takesAutoclosure' with an argument list of type '(UnsafePointer<UInt8>, String)'}}
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// expected-note@-1 {{expected an argument list of type '(T, @autoclosure () throws -> T)'}}
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takesAutoclosure(ptrVoid, s) // expected-error {{cannot invoke 'takesAutoclosure' with an argument list of type '(UnsafePointer<Void>, String)'}}
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// expected-note@-1 {{expected an argument list of type '(T, @autoclosure () throws -> T)'}}
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}
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