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A parse-only option is needed for parse performance tracking and the current option also includes semantic analysis.
21 lines
624 B
Swift
21 lines
624 B
Swift
// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2016 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 -typecheck
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// REQUIRES: asserts
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// Issue found by https://github.com/robrix (Rob Rix)
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// http://www.openradar.me/19924870
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func unit<T>(x: T) -> T? {
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return x
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}
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func f() -> Int? {
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return unit(1) ?? unit(2).map { 1 } ?? nil
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}
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