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In Swift 4.2, this example crashed. In Swift 5, it incorrectly diagnoses a type error. Eventually, it should actually succeed. For now, let's make sure we don't backslide to crashing.
23 lines
817 B
Swift
23 lines
817 B
Swift
// This source file is part of the Swift.org open source project
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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// RUN: not %target-swift-frontend %s -emit-sil
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// One day, if we're lucky, this test will start failing by emitting SIL
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// instead of diagnosing an error. If you are reading this comment because that
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// joyous day has finally arrived, please remove the "not" in the RUN line.
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// Until then, we will at least make sure we don't regress and start crashing
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// again.
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func f() -> Int {
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return { a in
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{ [unowned a] b in
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a(b)
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}
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}(1)
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}
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