mirror of https://github.com/axmolengine/axmol.git
67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=8 sts=4 et sw=4 tw=99:
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef js_Vector_h
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#define js_Vector_h
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#include "mozilla/Vector.h"
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/* Silence dire "bugs in previous versions of MSVC have been fixed" warnings */
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#ifdef _MSC_VER
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#pragma warning(push)
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#pragma warning(disable:4345)
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#endif
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namespace js {
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class TempAllocPolicy;
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// If we had C++11 template aliases, we could just use this:
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//
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// template <typename T,
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// size_t MinInlineCapacity = 0,
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// class AllocPolicy = TempAllocPolicy>
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// using Vector = mozilla::Vector<T, MinInlineCapacity, AllocPolicy>;
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//
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// ...and get rid of all the CRTP madness in mozilla::Vector(Base). But we
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// can't because compiler support's not up to snuff. (Template aliases are in
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// gcc 4.7 and clang 3.0 and are expected to be in MSVC 2013.) Instead, have a
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// completely separate class inheriting from mozilla::Vector, and throw CRTP at
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// the problem til things work.
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//
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// This workaround presents a couple issues. First, because js::Vector is a
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// distinct type from mozilla::Vector, overload resolution, method calls, etc.
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// are affected. *Hopefully* this won't be too bad in practice. (A bunch of
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// places had to be fixed when mozilla::Vector was introduced, but it wasn't a
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// crazy number.) Second, mozilla::Vector's interface has to be made subclass-
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// ready via CRTP -- or rather, via mozilla::VectorBase, which basically no one
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// should use. :-) Third, we have to redefine the constructors and the non-
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// inherited operators. Blech. Happily there aren't too many of these, so it
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// isn't the end of the world.
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template <typename T,
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size_t MinInlineCapacity = 0,
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class AllocPolicy = TempAllocPolicy>
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class Vector
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: public mozilla::VectorBase<T,
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MinInlineCapacity,
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AllocPolicy,
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Vector<T, MinInlineCapacity, AllocPolicy> >
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{
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typedef typename mozilla::VectorBase<T, MinInlineCapacity, AllocPolicy, Vector> Base;
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public:
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Vector(AllocPolicy alloc = AllocPolicy()) : Base(alloc) {}
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Vector(mozilla::MoveRef<Vector> vec) : Base(vec) {}
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Vector &operator=(mozilla::MoveRef<Vector> vec) {
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return Base::operator=(vec);
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}
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};
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} // namespace js
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#endif /* js_Vector_h */
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