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39 lines
1.4 KiB
Swift
39 lines
1.4 KiB
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 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 http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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// BooleanType
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//===----------------------------------------------------------------------===//
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@prefix public func !<T : BooleanType>(a: T) -> Bool {
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return !a.getLogicValue()
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}
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// Short circuiting logical operators.
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// FIXME: these operators should be fully generic
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// BLOCKED ON: <rdar://problem/13251236> [remapping bound function type not
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// implemented yet (deduced closure types)].
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//
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// FIXME: the generic versions of these operators probably shouldn't
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// be @transparent; ideally they will be overloaded with transparent
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// bool-specific operators. BLOCKED ON: <rdar://problem/11510876>
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// [Implement overload resolution].
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@transparent public
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func &&(lhs: BooleanType, rhs: @auto_closure () -> BooleanType) -> Bool {
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return lhs.getLogicValue() ? rhs().getLogicValue() : false
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}
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@transparent public
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func ||(lhs: BooleanType, rhs: @auto_closure () -> BooleanType) -> Bool {
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return lhs.getLogicValue() ? true : rhs().getLogicValue()
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}
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