我们从Python开源项目中，提取了以下7个代码示例，用于说明如何使用google.protobuf.descriptor_pb2.FieldDescriptorProto()。
def testDescriptorProtoSupport(self): # Hand written descriptors/reflection are only supported by the pure-Python # implementation of the API. if api_implementation.Type() != 'python': return def AddDescriptorField(proto, field_name, field_type): AddDescriptorField.field_index += 1 new_field = proto.field.add() new_field.name = field_name new_field.type = field_type new_field.number = AddDescriptorField.field_index new_field.label = descriptor_pb2.FieldDescriptorProto.LABEL_OPTIONAL AddDescriptorField.field_index = 0 desc_proto = descriptor_pb2.DescriptorProto() desc_proto.name = 'Car' fdp = descriptor_pb2.FieldDescriptorProto AddDescriptorField(desc_proto, 'name', fdp.TYPE_STRING) AddDescriptorField(desc_proto, 'year', fdp.TYPE_INT64) AddDescriptorField(desc_proto, 'automatic', fdp.TYPE_BOOL) AddDescriptorField(desc_proto, 'price', fdp.TYPE_DOUBLE) # Add a repeated field AddDescriptorField.field_index += 1 new_field = desc_proto.field.add() new_field.name = 'owners' new_field.type = fdp.TYPE_STRING new_field.number = AddDescriptorField.field_index new_field.label = descriptor_pb2.FieldDescriptorProto.LABEL_REPEATED desc = descriptor.MakeDescriptor(desc_proto) self.assertTrue('name' in desc.fields_by_name) self.assertTrue('year' in desc.fields_by_name) self.assertTrue('automatic' in desc.fields_by_name) self.assertTrue('price' in desc.fields_by_name) self.assertTrue('owners' in desc.fields_by_name) class CarMessage(six.with_metaclass(reflection.GeneratedProtocolMessageType, message.Message)): DESCRIPTOR = desc prius = CarMessage() prius.name = 'prius' prius.year = 2010 prius.automatic = True prius.price = 25134.75 prius.owners.extend(['bob', 'susan']) serialized_prius = prius.SerializeToString() new_prius = reflection.ParseMessage(desc, serialized_prius) self.assertTrue(new_prius is not prius) self.assertEqual(prius, new_prius) # these are unnecessary assuming message equality works as advertised but # explicitly check to be safe since we're mucking about in metaclass foo self.assertEqual(prius.name, new_prius.name) self.assertEqual(prius.year, new_prius.year) self.assertEqual(prius.automatic, new_prius.automatic) self.assertEqual(prius.price, new_prius.price) self.assertEqual(prius.owners, new_prius.owners)
def testDescriptorProtoSupport(self): # Hand written descriptors/reflection are only supported by the pure-Python # implementation of the API. if api_implementation.Type() != 'python': return def AddDescriptorField(proto, field_name, field_type): AddDescriptorField.field_index += 1 new_field = proto.field.add() new_field.name = field_name new_field.type = field_type new_field.number = AddDescriptorField.field_index new_field.label = descriptor_pb2.FieldDescriptorProto.LABEL_OPTIONAL AddDescriptorField.field_index = 0 desc_proto = descriptor_pb2.DescriptorProto() desc_proto.name = 'Car' fdp = descriptor_pb2.FieldDescriptorProto AddDescriptorField(desc_proto, 'name', fdp.TYPE_STRING) AddDescriptorField(desc_proto, 'year', fdp.TYPE_INT64) AddDescriptorField(desc_proto, 'automatic', fdp.TYPE_BOOL) AddDescriptorField(desc_proto, 'price', fdp.TYPE_DOUBLE) # Add a repeated field AddDescriptorField.field_index += 1 new_field = desc_proto.field.add() new_field.name = 'owners' new_field.type = fdp.TYPE_STRING new_field.number = AddDescriptorField.field_index new_field.label = descriptor_pb2.FieldDescriptorProto.LABEL_REPEATED desc = descriptor.MakeDescriptor(desc_proto) self.assertTrue(desc.fields_by_name.has_key('name')) self.assertTrue(desc.fields_by_name.has_key('year')) self.assertTrue(desc.fields_by_name.has_key('automatic')) self.assertTrue(desc.fields_by_name.has_key('price')) self.assertTrue(desc.fields_by_name.has_key('owners')) class CarMessage(message.Message): __metaclass__ = reflection.GeneratedProtocolMessageType DESCRIPTOR = desc prius = CarMessage() prius.name = 'prius' prius.year = 2010 prius.automatic = True prius.price = 25134.75 prius.owners.extend(['bob', 'susan']) serialized_prius = prius.SerializeToString() new_prius = reflection.ParseMessage(desc, serialized_prius) self.assertTrue(new_prius is not prius) self.assertEqual(prius, new_prius) # these are unnecessary assuming message equality works as advertised but # explicitly check to be safe since we're mucking about in metaclass foo self.assertEqual(prius.name, new_prius.name) self.assertEqual(prius.year, new_prius.year) self.assertEqual(prius.automatic, new_prius.automatic) self.assertEqual(prius.price, new_prius.price) self.assertEqual(prius.owners, new_prius.owners)
