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