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asl/asl/strings/string.hpp

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2.1 KiB
C++

// Copyright 2025 Steven Le Rouzic
//
// SPDX-License-Identifier: BSD-3-Clause
#pragma once
#include "asl/containers/buffer.hpp"
#include "asl/strings/string_view.hpp"
namespace asl
{
template<allocator Allocator = DefaultAllocator>
class string
{
buffer<char, Allocator> m_buffer;
explicit constexpr string(buffer<char, Allocator>&& buffer) :
m_buffer{std::move(buffer)}
{}
template<allocator A>
friend class StringBuilder;
public:
constexpr string() requires default_constructible<Allocator> = default;
explicit constexpr string(Allocator allocator) : m_buffer{std::move(allocator)} {}
// NOLINTNEXTLINE(*explicit*)
constexpr string(string_view sv)
requires default_constructible<Allocator>
: m_buffer{sv.as_span()}
{}
constexpr string(string_view sv, Allocator allocator)
: m_buffer{sv.as_span(), std::move(allocator)}
{}
constexpr ~string() = default;
constexpr string(const string&) requires copy_constructible<Allocator> = default;
constexpr string(string&&) = default;
constexpr string& operator=(const string&) requires copy_assignable<Allocator> = default;
constexpr string& operator=(string&&) = default;
[[nodiscard]] constexpr isize_t size() const { return m_buffer.size(); }
[[nodiscard]] constexpr const char* data() const { return m_buffer.data(); }
// NOLINTNEXTLINE(*explicit*)
constexpr operator string_view() const
{
return as_string_view();
}
[[nodiscard]] constexpr string_view as_string_view() const
{
auto span = m_buffer.as_span();
return string_view{span.data(), span.size()};
}
constexpr bool operator==(const string& other) const
{
return as_string_view() == other.as_string_view();
}
constexpr bool operator==(string_view other) const
{
return as_string_view() == other;
}
template<typename H>
friend H AslHashValue(H h, const string& str)
{
return H::combine(h, str.as_string_view());
}
};
string() -> string<>;
} // namespace asl