memory_stream.hpp

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#pragma once
#include "stream.hpp"
#include "../collections/generic/list.hpp"
#include "../new_ptr.hpp"

namespace xtd {
  namespace io {
    class core_export_ memory_stream :  public xtd::io::stream {
    public:
      
      memory_stream();
      memory_stream(xtd::size capacity);
      
      
      [[nodiscard]] auto can_read() const noexcept -> bool override;
      
      [[nodiscard]] auto can_seek() const noexcept -> bool override;
      
      [[nodiscard]] auto can_write() const noexcept -> bool override;
      
      [[nodiscard]] auto capacity() const -> xtd::size;
      auto capacity(xtd::size value) -> void;
      
      [[nodiscard]] auto length() const -> xtd::size override;
      
      [[nodiscard]] auto position() const -> xtd::size override;
      auto position(xtd::size value) -> void override;
      
      
      auto flush() -> void override;
      
      using xtd::io::stream::read;
      auto read(xtd::array<xtd::byte>& buffer, size offset, size count) -> xtd::size override;
      
      auto seek(std::streamoff offset, seek_origin loc) -> xtd::size;
      
      auto set_length(xtd::size value) -> void override;
      
      [[nodiscard]] auto to_array() const -> xtd::array<xtd::byte>;
      
      using xtd::io::stream::write;
      auto write(const xtd::array<xtd::byte>& buffer, size offset, size count) -> void override;
      
      auto write_to(std::ostream& stream) -> void;
    private:
      [[nodiscard]] auto abstract_read_byte_unchecked() -> xtd::byte;
      auto abstract_write_byte_unchecked(xtd::byte b) -> void;
      
      struct data {
        xtd::array<byte>* static_buffer = null;
        xtd::collections::generic::list<byte> dynamic_buffer;
        xtd::size position = 0;
        bool writable = true;
      };
      ptr<data> data_ = new_ptr<data>();
    };
  }
}