/usr/include/thunderbird/mozilla/dom/UnionMember.h is in thunderbird-dev 1:52.8.0-1~deb8u1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* A class for holding the members of a union. */
#ifndef mozilla_dom_UnionMember_h
#define mozilla_dom_UnionMember_h
#include "mozilla/Alignment.h"
namespace mozilla {
namespace dom {
// The union type has an enum to keep track of which of its UnionMembers has
// been constructed.
template<class T>
class UnionMember
{
AlignedStorage2<T> mStorage;
public:
T& SetValue()
{
new (mStorage.addr()) T();
return *mStorage.addr();
}
template <typename T1>
T& SetValue(const T1& aValue)
{
new (mStorage.addr()) T(aValue);
return *mStorage.addr();
}
template<typename T1, typename T2>
T& SetValue(const T1& aValue1, const T2& aValue2)
{
new (mStorage.addr()) T(aValue1, aValue2);
return *mStorage.addr();
}
T& Value()
{
return *mStorage.addr();
}
const T& Value() const
{
return *mStorage.addr();
}
void Destroy()
{
mStorage.addr()->~T();
}
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_UnionMember_h
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