public static ByteString ReadBytes(ref ReadOnlySpan <byte> buffer, ref ParserInternalState state)
{
int length = ParsingPrimitives.ParseLength(ref buffer, ref state);
return(ByteString.AttachBytes(ParsingPrimitives.ReadRawBytes(ref buffer, ref state, length)));
}
/// <summary>
/// Reads a fixed size of bytes from the input.
/// </summary>
/// <exception cref="InvalidProtocolBufferException">
/// the end of the stream or the current limit was reached
/// </exception>
internal byte[] ReadRawBytes(int size)
{
var span = new ReadOnlySpan <byte>(buffer);
return(ParsingPrimitives.ReadRawBytes(ref span, ref state, size));
}