51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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 MOZILLA_GFX_ARRAY_VIEW_H_
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#define MOZILLA_GFX_ARRAY_VIEW_H_
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#include "nsTArray.h"
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/* This is similar to mfbt/Range.h but has implicit conversion
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* from nsTArray and less bounds checking.
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* For now, prefer Range over ArrayView */
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namespace mozilla {
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namespace gfx {
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template<typename T>
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class ArrayView
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{
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public:
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MOZ_IMPLICIT ArrayView(const nsTArray<T>& aData) :
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mData(aData.Elements()), mLength(aData.Length())
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{
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}
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ArrayView(const T* aData, const size_t aLength) :
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mData(aData), mLength(aLength)
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{
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}
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const T& operator[](const size_t aIdx) const
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{
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return mData[aIdx];
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}
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size_t Length() const
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{
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return mLength;
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}
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const T* Data() const
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{
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return mData;
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}
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private:
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const T* mData;
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const size_t mLength;
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};
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} // namespace gfx
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} // namespace mozilla
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#endif /* MOZILLA_GFX_ARRAY_VIEW_H_ */
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