Unity.Entities.Serialization.BinaryReader basic implementation

Binary Reader & Writer.cs

// src: https://gist.github.com/andrew-raphael-lukasik/6813fe2b8688eb3ea4e333f21d3cc02a

namespace Unity.Entities.Serialization
{
	public unsafe struct Reader : BinaryReader
	{
		System.IO.BinaryReader _reader;
		System.IO.FileStream _stream;
		public Reader ( string filePath )
		{
			_stream = System.IO.File.Open( filePath , System.IO.FileMode.Open );
			_reader = new System.IO.BinaryReader( _stream );
		}
		long BinaryReader.Position
		{
			get => _reader.BaseStream.Position;
			set => _reader.BaseStream.Position = value;
		}
		void BinaryReader.ReadBytes ( void* data , int bytes )
		{
			byte* ptr = (byte*) data;
			for( int i=0 ; i<bytes ; i++ )
				*(ptr+i) = _reader.ReadByte();
		}
		void System.IDisposable.Dispose ()
		{
			_reader.Dispose();
			_stream.Dispose();
		}
	}

	public unsafe struct Writer : BinaryWriter
	{
		System.IO.BinaryWriter _writer;
		System.IO.FileStream _stream;
		public Writer ( string filePath )
		{
			_stream = System.IO.File.Open( filePath , System.IO.FileMode.Create );
			_writer = new System.IO.BinaryWriter( _stream );
		}
		long BinaryWriter.Position
		{
			get => _writer.BaseStream.Position;
			set => _writer.BaseStream.Position = value;
		}
		void BinaryWriter.WriteBytes ( void* data , int bytes )
		{
			byte* ptr = (byte*) data;
			for( int i=0 ; i<bytes ; i++ )
				_writer.Write( *(ptr+i) );
		}
		void System.IDisposable.Dispose ()
		{
			_writer.Dispose();
			_stream.Dispose();
		}
	}
	
}