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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
50 lines
1.5 KiB
Swift
50 lines
1.5 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 takesUnsafeRawPointer(_ ptr: UnsafeRawPointer) {}
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func takesUnsafeMutableRawPointer(_ ptr: UnsafeMutableRawPointer) {}
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func takesUnsafePointer<T>(_ ptr: UnsafePointer<T>) {}
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func takesUnsafeMutablePointer<T>(_ ptr: UnsafeMutablePointer<T>) {}
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func takesUnsafePointerInt8(_ ptr: UnsafePointer<Int8>) {}
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func takesUnsafePointerUInt8(_ ptr: UnsafePointer<UInt8>) {}
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func takesUnsafePointerVoid(_ ptr: UnsafePointer<Void>) {} // expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
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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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) {
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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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takesUnsafeRawPointer(&i)
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takesUnsafeMutableRawPointer(&i)
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takesUnsafeMutablePointer(&i)
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takesUnsafePointer(&i)
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takesUnsafeRawPointer(&a)
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takesUnsafeMutableRawPointer(&a)
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takesUnsafeMutablePointer(&a)
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takesUnsafePointer(&a)
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takesUnsafeRawPointer(mutPtr)
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takesUnsafeMutableRawPointer(mutPtr)
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takesUnsafePointer(mutPtr)
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takesUnsafeRawPointer(mutRawPtr)
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takesUnsafeRawPointer(a)
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takesUnsafePointer(a)
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takesAutoclosure(rawPtr, mutPtr)
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takesAutoclosure(mutRawPtr, mutPtr)
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takesAutoclosure(ptr, mutPtr)
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takesAutoclosure(rawPtr, mutRawPtr)
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takesUnsafeRawPointer(s)
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takesUnsafePointerInt8(s)
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takesUnsafePointerUInt8(s)
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takesUnsafePointerVoid(s)
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}
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