g$ddlmZGddZy))unpackc~eZdZdZdZdZdZdZeZdZ dZ dZ dd Z d Z d Zd Zd ZdZeZeZdZdZdZy) BinaryDecoderzDecoder for the avro binary format. NOTE: All attributes and methods on this class should be considered private. Parameters ---------- fo: file-like Input stream c||_yN)fo)selfrs O/var/www/openai/venv/lib/python3.12/site-packages/fastavro/io/binary_decoder.py__init__zBinaryDecoder.__init__s cy)znull is written as zero bytes.Nr s r read_nullzBinaryDecoder.read_nullsr cXtd|jjdddk7S)zcA boolean is written as a single byte whose value is either 0 (false) or 1 (true). Brrrreadrs r read_booleanzBinaryDecoder.read_booleans'c477<<?+A.!33r c|jjd}|stt|}|dz}d}|dzdk7r=t|jjd}||dz|zz}|dz }|dzdk7r=|dz |dz z S)zNint and long values are written using variable-length, zig-zag coding.rr)rrEOFErrorord)r cbnshifts r read_longzBinaryDecoder.read_long!s GGLLON F H4xAoDGGLLO$A !d(u$ $A QJE4xAo QAE(""r cRtd|jjddS)zA float is written as 4 bytes. The float is converted into a 32-bit integer using a method equivalent to Java's floatToIntBits and then encoded in little-endian format. zrArF iter_arrayiter_maprHrJrLrr r rrsk 4#(H00F  - 1($J!H-  r rN)structrrrr r rVsJ J r