template <typename Key, typename Value, WireFormatLite::FieldType kKeyFieldType, WireFormatLite::FieldType kValueFieldType>

class MapEntry

Defined at line 67 of file ../../third_party/protobuf/src/google/protobuf/map_entry.h

MapEntry is the returned google::protobuf::Message when calling AddMessage of

google::protobuf::Reflection. In order to let it work with generated message

reflection, its in-memory type is the same as generated message with the same

fields. However, in order to decide the in-memory type of key/value, we need

to know both their cpp type in generated api and proto type. In

implementation, all in-memory types have related wire format functions to

support except ArenaStringPtr. Therefore, we need to define another type with

supporting wire format functions. Since this type is only used as return type

of MapEntry accessors, it's named MapEntry accessor type.

cpp type: the type visible to users in public API.

proto type: WireFormatLite::FieldType of the field.

in-memory type: type of the data member used to stored this field.

MapEntry accessor type: type used in MapEntry getters/mutators to access the

field.

cpp type | proto type | in-memory type | MapEntry accessor type

int32_t TYPE_INT32 int32_t int32_t

int32_t TYPE_FIXED32 int32_t int32_t

string TYPE_STRING ArenaStringPtr string

FooEnum TYPE_ENUM int int

FooMessage TYPE_MESSAGE FooMessage* FooMessage

The in-memory types of primitive types can be inferred from its proto type,

while we need to explicitly specify the cpp type if proto type is

TYPE_MESSAGE to infer the in-memory type.

Protected Members

 _impl_

void MapEntry<Key, Value, kKeyFieldType, kValueFieldType> ()

Defined at line 80 of file ../../third_party/protobuf/src/google/protobuf/map_entry.h

void MapEntry<Key, Value, kKeyFieldType, kValueFieldType> (const MapEntry<Key, Value, kKeyFieldType, kValueFieldType> & )

Defined at line 84 of file ../../third_party/protobuf/src/google/protobuf/map_entry.h

MapEntry<Key, Value, kKeyFieldType, kValueFieldType> & operator= (const MapEntry<Key, Value, kKeyFieldType, kValueFieldType> & )

Defined at line 85 of file ../../third_party/protobuf/src/google/protobuf/map_entry.h

void ~MapEntry<Key, Value, kKeyFieldType, kValueFieldType> ()

Defined at line 87 of file ../../third_party/protobuf/src/google/protobuf/map_entry.h

void SharedDtor (MessageLite & msg)

Defined at line 108 of file ../../third_party/protobuf/src/google/protobuf/map_entry.h

template <typename Keytypename ValueWireFormatLite::FieldType kKeyFieldTypeWireFormatLite::FieldType kValueFieldType>

class Arena