Functions
def	_DecodeFixed32 (buffer, pos)

def	_DecodeFixed64 (buffer, pos)

def	_DecodeUnknownField (buffer, pos, wire_type)

def	_DecodeUnknownFieldSet (buffer, pos, end_pos=None)

def	_DoubleDecoder ()

def	_EndGroup (buffer, pos, end)

def	_FieldSkipper ()

def	_FloatDecoder ()

def	_ModifiedDecoder (wire_type, decode_value, modify_value)

def	_RaiseInvalidWireType (buffer, pos, end)

def	_SignedVarintDecoder (bits, result_type)

def	_SimpleDecoder (wire_type, decode_value)

def	_SkipFixed32 (buffer, pos, end)

def	_SkipFixed64 (buffer, pos, end)

def	_SkipGroup (buffer, pos, end)

def	_SkipLengthDelimited (buffer, pos, end)

def	_SkipVarint (buffer, pos, end)

def	_StructPackDecoder (wire_type, format)

def	_VarintDecoder (mask, result_type)

def	BytesDecoder (field_number, is_repeated, is_packed, key, new_default)

def	BytesDecoder (field_number, is_repeated, is_packed, key, new_default, clear_if_default=False)

def	EnumDecoder (field_number, is_repeated, is_packed, key, new_default)

def	EnumDecoder (field_number, is_repeated, is_packed, key, new_default, clear_if_default=False)

def	GroupDecoder (field_number, is_repeated, is_packed, key, new_default)

def	MapDecoder (field_descriptor, new_default, is_message_map)

def	MessageDecoder (field_number, is_repeated, is_packed, key, new_default)

def	MessageSetItemDecoder (descriptor)

def	ReadTag (buffer, pos)

def	StringDecoder (field_number, is_repeated, is_packed, key, new_default, is_strict_utf8=False)

Variables
string	__author__ = 'kenton@google.com (Kenton Varda)'

	_DecodeError = message.DecodeError

def	_DecodeSignedVarint = _SignedVarintDecoder(64, long)

def	_DecodeSignedVarint32 = _SignedVarintDecoder(32, int)

def	_DecodeVarint = _VarintDecoder((1 << 64) - 1, long)

def	_DecodeVarint32 = _VarintDecoder((1 << 32) - 1, int)

int	_NAN = _POS_INF * 0

int	_NEG_INF = -_POS_INF

int	_POS_INF = 1e10000

	_SURROGATE_PATTERN = re.compile(six.u(r'[\ud800-\udfff]'))

int	_UCS2_MAXUNICODE = 65535

def	BoolDecoder

def	DoubleDecoder = _DoubleDecoder()

def	Fixed32Decoder = _StructPackDecoder(wire_format.WIRETYPE_FIXED32, '<I')

def	Fixed64Decoder = _StructPackDecoder(wire_format.WIRETYPE_FIXED64, '<Q')

def	FloatDecoder = _FloatDecoder()

def	Int32Decoder

def	Int64Decoder

	long = int

	MESSAGE_SET_ITEM_TAG = encoder.TagBytes(1, wire_format.WIRETYPE_START_GROUP)

def	SFixed32Decoder = _StructPackDecoder(wire_format.WIRETYPE_FIXED32, '<i')

def	SFixed64Decoder = _StructPackDecoder(wire_format.WIRETYPE_FIXED64, '<q')

def	SInt32Decoder

def	SInt64Decoder

def	SkipField = _FieldSkipper()

def	UInt32Decoder = _SimpleDecoder(wire_format.WIRETYPE_VARINT, _DecodeVarint32)

def	UInt64Decoder = _SimpleDecoder(wire_format.WIRETYPE_VARINT, _DecodeVarint)

Function Documentation

◆ _DecodeFixed32()

def google.protobuf.internal.decoder._DecodeFixed32	(	buffer,
		pos
	)

private

Decode a fixed32.

Definition at line 992 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _DecodeFixed64()

def google.protobuf.internal.decoder._DecodeFixed64	(	buffer,
		pos
	)

private

Decode a fixed64.

Definition at line 910 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _DecodeUnknownField()

def google.protobuf.internal.decoder._DecodeUnknownField	(	buffer,
		pos,
		wire_type
	)

private

Decode a unknown field.  Returns the UnknownField and new position.

Definition at line 954 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _DecodeUnknownFieldSet()

def google.protobuf.internal.decoder._DecodeUnknownFieldSet	(	buffer,
		pos,
		end_pos = `None`
	)

private

Decode UnknownFieldSet.  Returns the UnknownFieldSet and new position.

Definition at line 937 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _DoubleDecoder()

def google.protobuf.internal.decoder._DoubleDecoder ( )

private

Returns a decoder for a double field.

This code works around a bug in struct.unpack for not-a-number.

Definition at line 346 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _EndGroup()

def google.protobuf.internal.decoder._EndGroup	(	buffer,
		pos,
		end
	)

private

Skipping an END_GROUP tag returns -1 to tell the parent loop to break.

Definition at line 977 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _FieldSkipper()

def google.protobuf.internal.decoder._FieldSkipper ( )

private

Constructs the SkipField function.

Definition at line 1004 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _FloatDecoder()

def google.protobuf.internal.decoder._FloatDecoder ( )

private

Returns a decoder for a float field.

This code works around a bug in struct.unpack for non-finite 32-bit
floating-point values.

Definition at line 301 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _ModifiedDecoder()

def google.protobuf.internal.decoder._ModifiedDecoder	(	wire_type,
		decode_value,
		modify_value
	)

private

Like SimpleDecoder but additionally invokes modify_value on every value
before storing it.  Usually modify_value is ZigZagDecode.

Definition at line 262 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _RaiseInvalidWireType()

def google.protobuf.internal.decoder._RaiseInvalidWireType	(	buffer,
		pos,
		end
	)

private

Skip function for unknown wire types.  Raises an exception.

Definition at line 999 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _SignedVarintDecoder()

def google.protobuf.internal.decoder._SignedVarintDecoder	(	bits,
		result_type
	)

private

Like _VarintDecoder() but decodes signed values.

Definition at line 139 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _SimpleDecoder()

def google.protobuf.internal.decoder._SimpleDecoder	(	wire_type,
		decode_value
	)

private

Return a constructor for a decoder for fields of a particular type.

Args:
    wire_type:  The field's wire type.
    decode_value:  A function which decodes an individual value, e.g.
      _DecodeVarint()

Definition at line 203 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _SkipFixed32()

def google.protobuf.internal.decoder._SkipFixed32	(	buffer,
		pos,
		end
	)

private

Skip a fixed32 value.  Returns the new position.

Definition at line 983 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _SkipFixed64()

def google.protobuf.internal.decoder._SkipFixed64	(	buffer,
		pos,
		end
	)

private

Skip a fixed64 value.  Returns the new position.

Definition at line 901 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _SkipGroup()

def google.protobuf.internal.decoder._SkipGroup	(	buffer,
		pos,
		end
	)

private

Skip sub-group.  Returns the new position.

Definition at line 926 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _SkipLengthDelimited()

def google.protobuf.internal.decoder._SkipLengthDelimited	(	buffer,
		pos,
		end
	)

private

Skip a length-delimited value.  Returns the new position.

Definition at line 916 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _SkipVarint()

def google.protobuf.internal.decoder._SkipVarint	(	buffer,
		pos,
		end
	)

private

Skip a varint value.  Returns the new position.

Definition at line 889 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _StructPackDecoder()

def google.protobuf.internal.decoder._StructPackDecoder	(	wire_type,
		format
	)

private

Return a constructor for a decoder for a fixed-width field.

Args:
    wire_type:  The field's wire type.
    format:  The format string to pass to struct.unpack().

Definition at line 276 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ _VarintDecoder()

def google.protobuf.internal.decoder._VarintDecoder	(	mask,
		result_type
	)

private

Return an encoder for a basic varint value (does not include tag).

Decoded values will be bitwise-anded with the given mask before being
returned, e.g. to limit them to 32 bits.  The returned decoder does not
take the usual "end" parameter -- the caller is expected to do bounds checking
after the fact (often the caller can defer such checking until later).  The
decoder returns a (value, new_pos) pair.

Definition at line 112 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ BytesDecoder() [1/2]

def google.protobuf.internal.decoder.BytesDecoder	(	field_number,
		is_repeated,
		is_packed,
		key,
		new_default
	)

Returns a decoder for a bytes field.

Definition at line 612 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ BytesDecoder() [2/2]

def google.protobuf.internal.decoder.BytesDecoder	(	field_number,
		is_repeated,
		is_packed,
		key,
		new_default,
		clear_if_default = `False`
	)

Returns a decoder for a bytes field.

Definition at line 596 of file protobuf/python/google/protobuf/internal/decoder.py.

◆ EnumDecoder() [1/2]

def google.protobuf.internal.decoder.EnumDecoder	(	field_number,
		is_repeated,
		is_packed,
		key,
		new_default
	)

Definition at line 386 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ EnumDecoder() [2/2]

def google.protobuf.internal.decoder.EnumDecoder	(	field_number,
		is_repeated,
		is_packed,
		key,
		new_default,
		clear_if_default = `False`
	)

Returns a decoder for enum field.

Definition at line 372 of file protobuf/python/google/protobuf/internal/decoder.py.

◆ GroupDecoder()

def google.protobuf.internal.decoder.GroupDecoder	(	field_number,
		is_repeated,
		is_packed,
		key,
		new_default
	)

Returns a decoder for a group field.

Definition at line 649 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ MapDecoder()

def google.protobuf.internal.decoder.MapDecoder	(	field_descriptor,
		new_default,
		is_message_map
	)

Returns a decoder for a map field.

Definition at line 843 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ MessageDecoder()

def google.protobuf.internal.decoder.MessageDecoder	(	field_number,
		is_repeated,
		is_packed,
		key,
		new_default
	)

Returns a decoder for a message field.

Definition at line 696 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ MessageSetItemDecoder()

def google.protobuf.internal.decoder.MessageSetItemDecoder ( descriptor )

Returns a decoder for a MessageSet item.

The parameter is the message Descriptor.

The message set message looks like this:
  message MessageSet {
    repeated group Item = 1 {
      required int32 type_id = 2;
      required string message = 3;
    }
  }

Definition at line 750 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.

◆ ReadTag()

def google.protobuf.internal.decoder.ReadTag	(	buffer,
		pos
	)

Read a tag from the memoryview, and return a (tag_bytes, new_pos) tuple.

We return the raw bytes of the tag rather than decoding them.  The raw
bytes can then be used to look up the proper decoder.  This effectively allows
us to trade some work that would be done in pure-python (decoding a varint)
for work that is done in C (searching for a byte string in a hash table).
In a low-level language it would be much cheaper to decode the varint and
use that, but not in Python.

Args:
  buffer: memoryview object of the encoded bytes
  pos: int of the current position to start from

Returns:
  Tuple[bytes, int] of the tag data and new position.

Definition at line 174 of file bloaty/third_party/protobuf/python/google/protobuf/internal/decoder.py.