public static long PeekInt64(this RailBitBuffer buffer, RailInt64Compressor compressor)
{
if (compressor.RequiredBits > RailConfig.VARINT_FALLBACK_SIZE)
{
return(compressor.Unpack(buffer.PeekUInt64()));
}
return(compressor.Unpack(buffer.Peek(compressor.RequiredBits)));
}