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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#pragma once
#include "smallstringiterator.h"
#include "smallstringlayout.h"
#include "smallstringview.h"
namespace Utils {
template <int Size>
class BasicSmallStringLiteral
{
template<uint>
friend class BasicSmallString;
public:
using const_iterator = Internal::SmallStringIterator<std::random_access_iterator_tag, const char>;
using const_reverse_iterator = std::reverse_iterator<const_iterator>;
using size_type = std::size_t;
template<size_type ArraySize>
constexpr
BasicSmallStringLiteral(const char(&string)[ArraySize]) noexcept
: m_data(string)
{
static_assert(ArraySize >= 1, "Invalid string literal! Length is zero!");
}
constexpr
BasicSmallStringLiteral(const char *string, const size_type size) noexcept
: m_data(string, size)
{
}
const char *data() const noexcept
{
return Q_LIKELY(isShortString()) ? m_data.shortString : m_data.reference.constPointer;
}
size_type size() const noexcept
{
return Q_LIKELY(isShortString()) ? m_data.control.shortStringSize() : m_data.reference.size;
}
constexpr
const_iterator begin() const noexcept
{
return data();
}
constexpr
const_iterator end() const noexcept
{
return data() + size();
}
const_reverse_iterator rbegin() const noexcept
{
return const_reverse_iterator(end());
}
const_reverse_iterator rend() const noexcept
{
return const_reverse_iterator(begin());
}
constexpr static
size_type shortStringCapacity() noexcept
{
return Internal::StringDataLayout<Size>::shortStringCapacity();
}
constexpr bool isShortString() const noexcept { return m_data.control.isShortString(); }
constexpr
bool isReadOnlyReference() const noexcept
{
return m_data.control.isReadOnlyReference();
}
constexpr
operator SmallStringView() const
{
return SmallStringView(data(), size());
}
private:
BasicSmallStringLiteral(const Internal::StringDataLayout<Size> &data) noexcept
: m_data(data)
{
}
private:
Internal::StringDataLayout<Size> m_data;
};
using SmallStringLiteral = BasicSmallStringLiteral<31>;
} // namespace Utils
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