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c s e Zd Z fddZ ZS )DescriptorMetaclassc s( t t| j|rdS t|| jr$dS dS )NTF)superr __instancecheck__
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__classcell__r r )r r r ? s r c @ s0 e Zd ZdZerf Zdd Zdd Zdd ZdS ) DescriptorBasea Descriptors base class.
This class is the base of all descriptor classes. It provides common options
related functionality.
Attributes:
has_options: True if the descriptor has non-default options. Usually it
is not necessary to read this -- just call GetOptions() which will
happily return the default instance. However, it's sometimes useful
for efficiency, and also useful inside the protobuf implementation to
avoid some bootstrapping issues.
c C s || _ || _|dk | _dS )zInitialize the descriptor given its options message and the name of the
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N)_options_options_class_name has_options)selfoptionsoptions_class_namer r r __init___ s zDescriptorBase.__init__c C s || _ || _|dk | _dS )zSets the descriptor's options
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Args:
options: Protocol message options or None
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options_class_name: (str) The class name of the above options.
name: (str) Name of this protocol message type.
full_name: (str) Fully-qualified name of this protocol message type,
which will include protocol "package" name and the name of any
enclosing types.
file: (FileDescriptor) Reference to file info.
containing_type: if provided, this is a nested descriptor, with this
descriptor as parent, otherwise None.
serialized_start: The start index (inclusive) in block in the
file.serialized_pb that describes this descriptor.
serialized_end: The end index (exclusive) in block in the
file.serialized_pb that describes this descriptor.
N) r r& r name full_namefilecontaining_type_serialized_start_serialized_end) r r r r' r( r) r* serialized_startserialized_end)r r r r s
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Nz*Descriptor does not contain serialization.)r) r+ r, ParseFromString
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ZS )
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A Descriptor instance has the following attributes:
name: (str) Name of this protocol message type.
full_name: (str) Fully-qualified name of this protocol message type,
which will include protocol "package" name and the name of any
enclosing types.
containing_type: (Descriptor) Reference to the descriptor of the
type containing us, or None if this is top-level.
fields: (list of FieldDescriptors) Field descriptors for all
fields in this type.
fields_by_number: (dict int -> FieldDescriptor) Same FieldDescriptor
objects as in |fields|, but indexed by "number" attribute in each
FieldDescriptor.
fields_by_name: (dict str -> FieldDescriptor) Same FieldDescriptor
objects as in |fields|, but indexed by "name" attribute in each
FieldDescriptor.
fields_by_camelcase_name: (dict str -> FieldDescriptor) Same
FieldDescriptor objects as in |fields|, but indexed by
"camelcase_name" attribute in each FieldDescriptor.
nested_types: (list of Descriptors) Descriptor references
for all protocol message types nested within this one.
nested_types_by_name: (dict str -> Descriptor) Same Descriptor
objects as in |nested_types|, but indexed by "name" attribute
in each Descriptor.
enum_types: (list of EnumDescriptors) EnumDescriptor references
for all enums contained within this type.
enum_types_by_name: (dict str ->EnumDescriptor) Same EnumDescriptor
objects as in |enum_types|, but indexed by "name" attribute
in each EnumDescriptor.
enum_values_by_name: (dict str -> EnumValueDescriptor) Dict mapping
from enum value name to EnumValueDescriptor for that value.
extensions: (list of FieldDescriptor) All extensions defined directly
within this message type (NOT within a nested type).
extensions_by_name: (dict, string -> FieldDescriptor) Same FieldDescriptor
objects as |extensions|, but indexed by "name" attribute of each
FieldDescriptor.
is_extendable: Does this type define any extension ranges?
oneofs: (list of OneofDescriptor) The list of descriptors for oneof fields
in this message.
oneofs_by_name: (dict str -> OneofDescriptor) Same objects as in |oneofs|,
but indexed by "name" attribute.
file: (FileDescriptor) Reference to file descriptor.
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name: (str) Name of this field, exactly as it appears in .proto.
full_name: (str) Name of this field, including containing scope. This is
particularly relevant for extensions.
camelcase_name: (str) Camelcase name of this field.
index: (int) Dense, 0-indexed index giving the order that this
field textually appears within its message in the .proto file.
number: (int) Tag number declared for this field in the .proto file.
type: (One of the TYPE_* constants below) Declared type.
cpp_type: (One of the CPPTYPE_* constants below) C++ type used to
represent this field.
label: (One of the LABEL_* constants below) Tells whether this
field is optional, required, or repeated.
has_default_value: (bool) True if this field has a default value defined,
otherwise false.
default_value: (Varies) Default value of this field. Only
meaningful for non-repeated scalar fields. Repeated fields
should always set this to [], and non-repeated composite
fields should always set this to None.
containing_type: (Descriptor) Descriptor of the protocol message
type that contains this field. Set by the Descriptor constructor
if we're passed into one.
Somewhat confusingly, for extension fields, this is the
descriptor of the EXTENDED message, not the descriptor
of the message containing this field. (See is_extension and
extension_scope below).
message_type: (Descriptor) If a composite field, a descriptor
of the message type contained in this field. Otherwise, this is None.
enum_type: (EnumDescriptor) If this field contains an enum, a
descriptor of that enum. Otherwise, this is None.
is_extension: True iff this describes an extension field.
extension_scope: (Descriptor) Only meaningful if is_extension is True.
Gives the message that immediately contains this extension field.
Will be None iff we're a top-level (file-level) extension field.
options: (descriptor_pb2.FieldOptions) Protocol message field options or
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containing_oneof: (OneofDescriptor) If the field is a member of a oneof
union, contains its descriptor. Otherwise, None.
file: (FileDescriptor) Reference to file descriptor.
i8J i N NTc C s* t jj | rt jj|S t jj|S d S )N)r r4 r5 r6 FindExtensionByNameFindFieldByName)r r' r( indexrA typecpp_typelabel
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The Python ProtocolBuffer classes specify both the 'Python' datatype and the
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Z S ) EnumDescriptora Descriptor for an enum defined in a .proto file.
An EnumDescriptor instance has the following attributes:
name: (str) Name of the enum type.
full_name: (str) Full name of the type, including package name
and any enclosing type(s).
values: (list of EnumValueDescriptors) List of the values
in this enum.
values_by_name: (dict str -> EnumValueDescriptor) Same as |values|,
but indexed by the "name" field of each EnumValueDescriptor.
values_by_number: (dict int -> EnumValueDescriptor) Same as |values|,
but indexed by the "number" field of each EnumValueDescriptor.
containing_type: (Descriptor) Descriptor of the immediate containing
type of this enum, or None if this is an enum defined at the
top level in a .proto file. Set by Descriptor's constructor
if we're passed into one.
file: (FileDescriptor) Reference to file descriptor.
options: (descriptor_pb2.EnumOptions) Enum options message or
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Nc
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name: (str) Name of this value.
index: (int) Dense, 0-indexed index giving the order that this
value appears textually within its enum in the .proto file.
number: (int) Actual number assigned to this enum value.
type: (EnumDescriptor) EnumDescriptor to which this value
belongs. Set by EnumDescriptor's constructor if we're
passed into one.
options: (descriptor_pb2.EnumValueOptions) Enum value options message or
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name: (str) Name of the oneof field.
full_name: (str) Full name of the oneof field, including package name.
index: (int) 0-based index giving the order of the oneof field inside
its containing type.
containing_type: (Descriptor) Descriptor of the protocol message
type that contains this field. Set by the Descriptor constructor
if we're passed into one.
fields: (list of FieldDescriptor) The list of field descriptors this
oneof can contain.
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zOneofDescriptor.__new__c s4 t t| j|d || _|| _|| _|| _|| _dS )z>Arguments are as described in the attribute description above.Z OneofOptionsN)r r r r' r( rp r* r8 )r r' r( rp r* r8 r )r r r r s zOneofDescriptor.__init__)N)N) r r r r
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Z Z S )
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name: (str) Name of the service.
full_name: (str) Full name of the service, including package name.
index: (int) 0-indexed index giving the order that this services
definition appears withing the .proto file.
methods: (list of MethodDescriptor) List of methods provided by this
service.
methods_by_name: (dict str -> MethodDescriptor) Same MethodDescriptor
objects as in |methods_by_name|, but indexed by "name" attribute in each
MethodDescriptor.
options: (descriptor_pb2.ServiceOptions) Service options message or
None to use default service options.
file: (FileDescriptor) Reference to file info.
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zServiceDescriptor.__init__c C s | j j|dS )z>Searches for the specified method, and returns its descriptor.N)r get)r r' r r r FindMethodByName s z"ServiceDescriptor.FindMethodByNamec s t t| j| dS )zCopies this to a descriptor_pb2.ServiceDescriptorProto.
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N)r r r2 )r r1 )r r r r2 s z ServiceDescriptor.CopyToProto)NNNN)NNNN)
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S ) MethodDescriptora Descriptor for a method in a service.
name: (str) Name of the method within the service.
full_name: (str) Full name of method.
index: (int) 0-indexed index of the method inside the service.
containing_service: (ServiceDescriptor) The service that contains this
method.
input_type: The descriptor of the message that this method accepts.
output_type: The descriptor of the message that this method returns.
options: (descriptor_pb2.MethodOptions) Method options message or
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Nc C s t jj t jj|S )N)r r4 r5 r6 r )r r' r( rp r
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zMethodDescriptor.__new__c s: t t| j|d || _|| _|| _|| _|| _|| _dS )zThe arguments are as described in the description of MethodDescriptor
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Z S ) FileDescriptora; Descriptor for a file. Mimics the descriptor_pb2.FileDescriptorProto.
Note that enum_types_by_name, extensions_by_name, and dependencies
fields are only set by the message_factory module, and not by the
generated proto code.
name: name of file, relative to root of source tree.
package: name of the package
syntax: string indicating syntax of the file (can be "proto2" or "proto3")
serialized_pb: (str) Byte string of serialized
descriptor_pb2.FileDescriptorProto.
dependencies: List of other FileDescriptors this FileDescriptor depends on.
public_dependencies: A list of FileDescriptors, subset of the dependencies
above, which were declared as "public".
message_types_by_name: Dict of message names of their descriptors.
enum_types_by_name: Dict of enum names and their descriptors.
extensions_by_name: Dict of extension names and their descriptors.
services_by_name: Dict of services names and their descriptors.
pool: the DescriptorPool this descriptor belongs to. When not passed to the
constructor, the global default pool is used.
Nc s$ |rt jj|S tt| j| S d S )N)r r6 AddSerializedFiler r r@ ) r r' packager r0 dependenciespublic_dependenciesr? pool)r r r r@ 5 s zFileDescriptor.__new__c
s t t| j|d |dkr.ddlm} | j }|| _i | _|| _|| _ |pLd| _
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This helper function is used to parse serialized options in generated
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r{ r Tc C sl t j dkr|rddlm} |j }|jj j| tt j
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j, t+| j, g t(| d S )a Make a protobuf Descriptor given a DescriptorProto protobuf.
Handles nested descriptors. Note that this is limited to the scope of defining
a message inside of another message. Composite fields can currently only be
resolved if the message is defined in the same scope as the field.
Args:
desc_proto: The descriptor_pb2.DescriptorProto protobuf message.
package: Optional package name for the new message Descriptor (string).
build_file_if_cpp: Update the C++ descriptor pool if api matches.
Set to False on recursion, so no duplicates are created.
syntax: The syntax/semantics that should be used. Set to "proto3" to get
proto3 field presence semantics.
Returns:
A Descriptor for protobuf messages.
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