AArrayView.h

/*
 * AUI Framework - Declarative UI toolkit for modern C++20
 * Copyright (C) 2020-2025 Alex2772 and Contributors
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * 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/.
 */
 
#pragma once
 
 
#include <cstdint>
#include <cstddef>
#include <cassert>
#include <AUI/Common/AVector.h>
#include <AUI/Common/AStaticVector.h>
 
template<typename Vector, typename T>
concept AAnyVector = requires(Vector& vector)
{
   { vector.data() } -> aui::convertible_to<const T*>;
   { vector.size() } -> aui::convertible_to<std::size_t>;
};

template<typename T>
class AArrayView {
public:
   AArrayView(const T* data, std::size_t count) noexcept : mData(data), mCount(count) {}
 
   AArrayView(const AAnyVector<T> auto& vector) noexcept: mData(vector.data()), mCount(vector.size()) {
 
   }
 
   template<std::size_t N>
   AArrayView(const T (&rawArray)[N]) noexcept: mData(rawArray), mCount(N) {}
 
   template<std::size_t N>
   AArrayView(const std::array<T, N>& array) noexcept: mData(array.data()), mCount(N) {}
 
   [[nodiscard]]
   const T* data() const noexcept {
       return mData;
   }
 
   [[nodiscard]]
   size_t size() const noexcept {
       return mCount;
   }
   [[nodiscard]]
   size_t sizeInBytes() const noexcept {
       return mCount * sizeof(T);
   }
 
   const T& operator[](std::size_t index) const noexcept {
       AUI_ASSERTX(index < mCount, "out of bounds");
       return mData[index];
   }
 
   const T* begin() const noexcept {
       return mData;
   }
 
   const T* end() const noexcept {
       return mData + mCount;
   }
 
private:
   const T* mData;
   std::size_t mCount;
};
 
template<typename Vector>
AArrayView(const Vector& vector) noexcept -> AArrayView<std::decay_t<decltype(*vector.data())>>;

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