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e5fc17843e
If they do provide it, however, it must match. So the following combinations are valid: weak var -> override weak var weak var -> override var but these are not: var -> override weak var weak var -> override unowned var To be fully correct, we should be cloning the attribute down and adjusting the type of the overriding property, but I'd rather not touch that right now. <rdar://problem/17837100> Swift SVN r20694
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
//===--- Ownership.h - Swift ASTs for Reference Ownership -------*- C++ -*-===//
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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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//
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// This file defines common structures for working with the different
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// kinds of reference ownership supported by Swift, such as 'weak' and
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// 'unowned'.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_OWNERSHIP_H
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#define SWIFT_OWNERSHIP_H
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namespace swift {
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/// Different kinds of reference ownership supported by Swift.
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// This enum is used in diagnostics. If you add a case here, the diagnostics
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// must be updated as well.
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enum class Ownership {
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/// \brief a strong reference (the default semantics)
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Strong,
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/// \brief a 'weak' reference
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Weak,
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/// \brief an 'unowned' reference
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Unowned,
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/// \brief an 'unowned(unsafe)' reference
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Unmanaged,
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};
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} // end namespace swift
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#endif
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