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#pragma once
#include "nes/common/types.hh"
#include "nes/common/span.hh"
#include "nes/common/path-view.hh"
#include "nes/common/status.hh"
#include <string_view>
namespace nes
{
/// A mutable path with a fixed-length buffer.
class path_builder
{
template<u32 Capacity>
friend class path_buffer;
span<char> buffer_;
u32 length_{ 0 };
public:
explicit path_builder(span<char>);
auto get_components() const -> path_view { return path_view{ get_path() }; }
auto get_path() const -> std::string_view { return std::string_view{ buffer_.get_data(), length_ }; }
auto push(std::string_view) -> status;
auto pop() -> status;
};
/// A path builder with a buffer embedded into it.
template<u32 Capacity>
class path_buffer : public path_builder
{
char buffer_[Capacity];
public:
explicit path_buffer()
: path_builder{ buffer_ }
{
}
path_buffer(path_buffer const& other)
: path_builder{ buffer_ }
{
std::copy_n(other.buffer_, Capacity, buffer_);
length_ = other.length_;
}
auto operator=(path_buffer const& other)
{
std::copy_n(other.buffer_, Capacity, buffer_);
length_ = other.length_;
}
};
} // namespace nes
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