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� ���hc @ sy d Z d Z d d l Z d d l Z d d l m Z d Z e Z d � Z d � Z d � Z d � Z d � Z d � Z e e � Z Z Z e e � Z Z e e e j � Z Z e d � Z Z Z e d � Z Z Z e d � Z d � Z d � Z d � Z d � Z d � Z! d � Z" d � Z# d � Z$ e# � Z% e$ � Z& d � Z' d � Z( d � Z) d � Z* d � Z+ d � Z, e) e j- e& e � Z. Z/ Z0 e) e j- e% e � Z1 Z2 e* e j- e% e e j � Z3 Z4 e+ e j5 d � Z6 e+ e j7 d � Z8 e+ e j5 d � Z9 e+ e j7 d � Z: e, e j5 d! � Z; e, e j7 d" � Z< d# � Z= d$ � Z> d% � Z? d& � Z@ d' � ZA d( � ZB d) � ZC d S(* s� Code for encoding protocol message primitives. Contains the logic for encoding every logical protocol field type into one of the 5 physical wire types. This code is designed to push the Python interpreter's performance to the limits. The basic idea is that at startup time, for every field (i.e. every FieldDescriptor) we construct two functions: a "sizer" and an "encoder". The sizer takes a value of this field's type and computes its byte size. The encoder takes a writer function and a value. It encodes the value into byte strings and invokes the writer function to write those strings. Typically the writer function is the write() method of a BytesIO. We try to do as much work as possible when constructing the writer and the sizer rather than when calling them. In particular: * We copy any needed global functions to local variables, so that we do not need to do costly global table lookups at runtime. * Similarly, we try to do any attribute lookups at startup time if possible. * Every field's tag is encoded to bytes at startup, since it can't change at runtime. * Whatever component of the field size we can compute at startup, we do. * We *avoid* sharing code if doing so would make the code slower and not sharing does not burden us too much. For example, encoders for repeated fields do not just call the encoders for singular fields in a loop because this would add an extra function call overhead for every loop iteration; instead, we manually inline the single-value encoder into the loop. * If a Python function lacks a return statement, Python actually generates instructions to pop the result of the last statement off the stack, push None onto the stack, and then return that. If we really don't care what value is returned, then we can save two instructions by returning the result of the last statement. It looks funny but it helps. * We assume that type and bounds checking has happened at a higher level. s kenton@google.com (Kenton Varda)i����N( t wire_formatg �c C s� | d k r d S| d k r d S| d k r0 d S| d k r@ d S| d k rP d S| d k r` d S| d k rp d S| d k r� d S| d k r� d Sd S( s# Compute the size of a varint value.i i i�? i i�� i i���i l �� i l ���i l ��� i l ����i l ���� i i ( ( t value( ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _VarintSizeR s& c C s� | d k r d S| d k r d S| d k r0 d S| d k r@ d S| d k rP d S| d k r` d S| d k rp d S| d k r� d S| d k r� d S| d k r� d Sd S( s* Compute the size of a signed varint value.i i i i i�? i i�� i i���i l �� i l ���i l ��� i l ����i l ���� i ( ( R ( ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _SignedVarintSize` s* c C s t t j | d � � S( sQ Returns the number of bytes required to serialize a tag with this field number.i ( R R t PackTag( t field_number( ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _TagSizeo s c s � f d � } | S( s� A sizer which uses the function compute_value_size to compute the size of each value. Typically compute_value_size is _VarintSize.c sg t | � � | r1 t � � � � f d � } | S| rM � � f d � } | S� � f d � } | Sd S( Nc s9 d } x | D] } | � | � 7} q W| � | � � S( Ni ( ( R t resultt element( t compute_value_sizet local_VarintSizet tag_size( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt PackedFieldSize� s c s5 � t | � } x | D] } | � | � 7} q W| S( N( t len( R R R ( R R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt RepeatedFieldSize� s c s � � | � S( N( ( R ( R R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt FieldSize� s ( R R ( R t is_repeatedt is_packedR R R ( R ( R R sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt SpecificSizer� s ( ( R R ( ( R sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _SimpleSizer~ s c s � � f d � } | S( s� Like SimpleSizer, but modify_value is invoked on each value before it is passed to compute_value_size. modify_value is typically ZigZagEncode.c sp t | � � | r4 t � � � � � f d � } | S| rS � � � f d � } | S� � � f d � } | Sd S( Nc s? d } x$ | D] } | � � | � � 7} q W| � | � � S( Ni ( ( R R R ( R R t modify_valueR ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR � s c s; � t | � } x$ | D] } | � � | � � 7} q W| S( N( R ( R R R ( R R R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR � s c s � � � | � � S( N( ( R ( R R R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR � s ( R R ( R R R R R R ( R R ( R R sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR � s ( ( R R R ( ( R R sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _ModifiedSizer� s c s � f d � } | S( sW Like _SimpleSizer except for a fixed-size field. The input is the size of one value.c su t | � � | r1 t � � � � f d � } | S| rT � � � � f d � } | S� � � � f d � } | Sd S( Nc s" t | � � } | � | � � S( N( R ( R R ( R R t value_size( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR � s c s t | � � S( N( R ( R ( t element_size( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR � s c s � S( N( ( R ( t field_size( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR � s ( R R ( R R R R R R ( R ( R R R R sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR � s ( ( R R ( ( R sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _FixedSizer� s i i i c sT t | � � t � t � | r7 � � � f d � } | S� � � f d � } | Sd S( s# Returns a sizer for a string field.c sN � t | � } x7 | D]/ } � | j d � � } | � | � | 7} q W| S( Ns utf-8( R t encode( R R R t l( R t local_lenR ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR � s c s' � | j d � � } � � | � | S( Ns utf-8( R ( R R ( R R R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR � s N( R R R ( R R R R R ( ( R R R sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt StringSizer� s c sT t | � � t � t � | r7 � � � f d � } | S� � � f d � } | Sd S( s" Returns a sizer for a bytes field.c sE � t | � } x. | D]& } � | � } | � | � | 7} q W| S( N( R ( R R R R ( R R R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR s c s � | � } � � | � | S( N( ( R R ( R R R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR s N( R R R ( R R R R R ( ( R R R sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt BytesSizer� s c s@ t | � d � | r) � f d � } | S� f d � } | Sd S( s" Returns a sizer for a group field.i c s5 � t | � } x | D] } | | j � 7} q W| S( N( R t ByteSize( R R R ( R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR s c s � | j � S( N( R ( R ( R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR s N( R ( R R R R R ( ( R sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt GroupSizer s c sH t | � � t � | r. � � f d � } | S� � f d � } | Sd S( s$ Returns a sizer for a message field.c sE � t | � } x. | D]& } | j � } | � | � | 7} q W| S( N( R R ( R R R R ( R R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR + s c s | j � } � � | � | S( N( R ( R R ( R R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR 3 s N( R R ( R R R R R ( ( R R sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt MessageSizer$ s c sJ t d � d t d � t | � t d � � t � � � f d � } | S( s� Returns a sizer for extensions of MessageSet. The message set message looks like this: message MessageSet { repeated group Item = 1 { required int32 type_id = 2; required string message = 3; } } i i i c s | j � } � � | � | S( N( R ( R R ( R t static_size( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR L s ( R R ( R R ( ( R R" sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt MessageSetItemSizer= s ! c s7 | j � t | j t t � � � � � f d � } | S( s Returns a sizer for a map field.c s` d } xS | D]K } | | } � j d | d | � } | � | � 7} � r | j � q q W| S( Ni t keyR ( t _concrete_classR ( t map_valuet totalR$ R t entry_msg( t is_message_mapt message_sizert message_type( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyR _ s ( R+ R! t numbert False( t field_descriptorR) R ( ( R) R* R+ sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt MapSizerW s c C s d � } | S( sB Return an encoder for a basic varint value (does not include tag).c S s_ | d @} | d L} x5 | rK | t j d | B� � | d @} | d L} q W| t j | � � S( Ni i i� ( t sixt int2byte( t writeR t unused_deterministict bits( ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt EncodeVarintw s ( ( R5 ( ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _VarintEncodert s c C s d � } | S( sK Return an encoder for a basic signed varint value (does not include tag).c S sx | d k r | d 7} n | d @} | d L} x5 | rd | t j d | B� � | d @} | d L} q0 W| t j | � � S( Ni i i@ i i i� l ( R0 R1 ( R2 R R3 R4 ( ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt EncodeSignedVarint� s ( ( R7 ( ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _SignedVarintEncoder� s c C s& g } t | j | t � d j | � S( s� Encode the given integer as a varint and return the bytes. This is only called at startup time so it doesn't need to be fast.t ( t _EncodeVarintt appendt Truet join( R t pieces( ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _VarintBytes� s c C s t j t t j | | � � � S( sC Encode the given tag and return the bytes. Only called at startup.( R0 t binary_typeR? R R ( R t wire_type( ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt TagBytes� s c s � � � f d � } | S( s_ Return a constructor for an encoder for fields of a particular type. Args: wire_type: The field's wire type, for encoding tags. encode_value: A function which encodes an individual value, e.g. _EncodeVarint(). compute_value_size: A function which computes the size of an individual value, e.g. _VarintSize(). c s� | r: t | t j � � t � � � � � f d � } | S| re t | � � � � � f d � } | St | � � � � � f d � } | Sd S( Nc sf | � � d } x | D] } | � | � 7} q W� | | | � x | D] } � | | | � qH Wd S( Ni ( ( R2 R t deterministict sizeR ( R t encode_valuet local_EncodeVarintt tag_bytes( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt EncodePackedField� s c s/ x( | D] } | � � � | | | � q Wd S( N( ( R2 R RC R ( RE RG ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt EncodeRepeatedField� s c s | � � � | | | � S( N( ( R2 R RC ( RE RG ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt EncodeField� s ( RB R t WIRETYPE_LENGTH_DELIMITEDR: ( R R R RH RI RJ ( R RE RA ( RF RG sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt SpecificEncoder� s ( ( RA RE R RL ( ( R RE RA sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _SimpleEncoder� s c s � � � � f d � } | S( s� Like SimpleEncoder but additionally invokes modify_value on every value before passing it to encode_value. Usually modify_value is ZigZagEncode.c s� | r= t | t j � � t � � � � � � f d � } | S| rk t | � � � � � � f d � } | St | � � � � � � f d � } | Sd S( Nc sr | � � d } x$ | D] } | � � | � � 7} q W� | | | � x$ | D] } � | � | � | � qN Wd S( Ni ( ( R2 R RC RD R ( R RE RF R RG ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRH � s c s5 x. | D]& } | � � � | � | � | � q Wd S( N( ( R2 R RC R ( RE R RG ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRI � s c s | � � � | � | � | � S( N( ( R2 R RC ( RE R RG ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRJ � s ( RB R RK R: ( R R R RH RI RJ ( R RE R RA ( RF RG sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRL � s ( ( RA RE R R RL ( ( R RE R RA sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _ModifiedEncoder� s c s( t j � � � � � � f d � } | S( s� Return a constructor for an encoder for a fixed-width field. Args: wire_type: The field's wire type, for encoding tags. format: The format string to pass to struct.pack(). c s� t j � | rF t | t j � � t � � � � � � f d � } | S| rt t | � � � � � � f d � } | St | � � � � � � f d � } | Sd S( Nc sL | � � � | t | � � | � x! | D] } | � � | � � q+ Wd S( N( R ( R2 R RC R ( t formatRF t local_struct_packRG R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRH s c s2 x+ | D]# } | � � | � � | � � q Wd S( N( ( R2 R R3 R ( RO RP RG ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRI s c s | � � | � � | � � S( N( ( R2 R R3 ( RO RP RG ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRJ s ( t structt packRB R RK R: ( R R R RH RI RJ ( RO R RA ( RF RP RG sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRL s ( RQ t calcsize( RA RO RL ( ( RO R RA sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _StructPackEncoder� s c sk t j � � � � d k r' d � � n( � d k r? d � � n t d � � � � � � � f d � } | S( sq Return a constructor for an encoder for float fields. This is like StructPackEncoder, but catches errors that may be due to passing non-finite floating-point values to struct.pack, and makes a second attempt to encode those values. Args: wire_type: The field's wire type, for encoding tags. format: The format string to pass to struct.pack(). i c S sR | t k r | d � n5 | t k r2 | d � n | | k rK | d � n � d S( Ns �s ��s �( t _POS_INFt _NEG_INF( R2 R ( ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt EncodeNonFiniteOrRaise+ s i c S sR | t k r | d � n5 | t k r2 | d � n | | k rK | d � n � d S( Ns �s �s �( RU RV ( R2 R ( ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRW 6 s sG Can't encode floating-point values that are %d bytes long (only 4 or 8)c s� t j � | rI t | t j � � t � � � � � � � f d � } | S| rz t | � � � � � � � f d � } | St | � � � � � � � f d � } | Sd S( Nc sq | � � � | t | � � | � xF | D]> } y | � � | � � Wq+ t k rh � | | � q+ Xq+ Wd S( N( R t SystemError( R2 R RC R ( RW RO RF RP RG R ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRH H s c sW xP | D]H } | � � y | � � | � � Wq t k rN � | | � q Xq Wd S( N( RX ( R2 R R3 R ( RW RO RP RG ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRI U s c sF | � � y | � � | � � Wn t k rA � | | � n Xd S( N( RX ( R2 R R3 ( RW RO RP RG ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRJ _ s ( RQ RR RB R RK R: ( R R R RH RI RJ ( RW RO R RA ( RF RP RG sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRL C s ( RQ RS t ValueError( RA RO RL ( ( RW RO R RA sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt _FloatingPointEncoder s $s <Is <Qs <is <qs <fs <dc s� d � d � | rF t | t j � � t � � � � � f d � } | S| rw t | t j � � � � � f d � } | St | t j � � � � � f d � } | Sd S( s' Returns an encoder for a boolean field.s s c sR | � � � | t | � | � x+ | D]# } | r@ | � � q' | � � q' Wd S( N( R ( R2 R RC R ( t false_byteRF RG t true_byte( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRH � s c s< x5 | D]- } | � � | r* | � � q | � � q Wd S( N( ( R2 R R3 R ( R[ RG R\ ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRI � s c s$ | � � | r | � � S| � � S( N( ( R2 R R3 ( R[ RG R\ ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRJ � s N( RB R RK R: t WIRETYPE_VARINT( R R R RH RI RJ ( ( R[ RF RG R\ sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt BoolEncoder� s c sZ t | t j � � t � t � | r= � � � f d � } | S� � � f d � } | Sd S( s& Returns an encoder for a string field.c sN xG | D]? } | j d � } | � � � | � | � | � | | � q Wd S( Ns utf-8( R ( R2 R RC R t encoded( RF R t tag( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRI � s c s9 | j d � } | � � � | � | � | � | | � S( Ns utf-8( R ( R2 R RC R_ ( RF R R` ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRJ � s N( RB R RK R: R ( R R R RI RJ ( ( RF R R` sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt StringEncoder� s c sZ t | t j � � t � t � | r= � � � f d � } | S� � � f d � } | Sd S( s% Returns an encoder for a bytes field.c s? x8 | D]0 } | � � � | � | � | � | | � q Wd S( N( ( R2 R RC R ( RF R R` ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRI � s c s* | � � � | � | � | � | | � S( N( ( R2 R RC ( RF R R` ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRJ � s N( RB R RK R: R ( R R R RI RJ ( ( RF R R` sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt BytesEncoder� s c sZ t | t j � � t | t j � � | r@ � � f d � } | S� � f d � } | Sd S( s% Returns an encoder for a group field.c s9 x2 | D]* } | � � | j | | � | � � q Wd S( N( t _InternalSerialize( R2 R RC R ( t end_tagt start_tag( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRI � s c s$ | � � | j | | � | � � S( N( Rc ( R2 R RC ( Rd Re ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRJ � s N( RB R t WIRETYPE_START_GROUPt WIRETYPE_END_GROUP( R R R RI RJ ( ( Rd Re sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt GroupEncoder� s c sN t | t j � � t � | r4 � � f d � } | S� � f d � } | Sd S( s' Returns an encoder for a message field.c sE x> | D]6 } | � � � | | j � | � | j | | � q Wd S( N( R Rc ( R2 R RC R ( RF R` ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRI � s c s0 | � � � | | j � | � | j | | � S( N( R Rc ( R2 R RC ( RF R` ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRJ � s N( RB R RK R: ( R R R RI RJ ( ( RF R` sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt MessageEncoder� s c sv d j t d t j � t d t j � t | � t d t j � g � � t d t j � � t � � � � f d � } | S( s� Encoder for extensions of MessageSet. The message set message looks like this: message MessageSet { repeated group Item = 1 { required int32 type_id = 2; required string message = 3; } } R9 i i i c s: | � � � | | j � | � | j | | � | � � S( N( R Rc ( R2 R RC ( t end_bytesRF t start_bytes( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRJ s ( R= RB R Rf R] R? RK Rg R: ( R RJ ( ( Rj RF Rk sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt MessageSetItemEncoder s c s4 | j � t | j t t � � � � f d � } | S( s� Encoder for extensions of MessageSet. Maps always have a wire format like this: message MapEntry { key_type key = 1; value_type value = 2; } repeated MapEntry map = N; c s_ | r t | j � � n | } x: | D]2 } � j d | d | | � } � | | | � q% Wd S( NR$ R ( t sortedt keysR% ( R2 R RC t value_keysR$ R( ( t encode_messageR+ ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyRJ 5 s ( R+ Ri R, R- ( R. RJ ( ( Rp R+ sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt MapEncoder& s (D t __doc__t __author__RQ R0 t google.protobuf.internalR RU RV R R R R R R t Int32Sizert Int64Sizert EnumSizert UInt32Sizert UInt64Sizert ZigZagEncodet SInt32Sizert SInt64Sizert Fixed32Sizert SFixed32Sizert FloatSizert Fixed64Sizert SFixed64Sizert DoubleSizert BoolSizerR R R R! R# R/ R6 R8 R: t _EncodeSignedVarintR? RB RM RN RT RZ R] t Int32Encodert Int64Encodert EnumEncodert UInt32Encodert UInt64Encodert SInt32Encodert SInt64Encodert WIRETYPE_FIXED32t Fixed32Encodert WIRETYPE_FIXED64t Fixed64Encodert SFixed32Encodert SFixed64Encodert FloatEncodert DoubleEncoderR^ Ra Rb Rh Ri Rl Rq ( ( ( sD /usr/lib/python2.7/site-packages/google/protobuf/internal/encoder.pyt <module>A sn ! ) " & R %