syntax = "proto2";

option java_outer_classname = "Extensions";
option java_package = "com.google.protobuf.nano";

message ExtendableMessage {
  optional int32 field = 1;
  extensions 10 to max;
}

enum AnEnum {
  FIRST_VALUE = 1;
  SECOND_VALUE = 2;
}

message AnotherMessage {
  optional string string = 1;
  optional bool value = 2;
}

extend ExtendableMessage {
  optional string some_string = 10;
  optional int32 some_int = 11;
  optional int64 some_long = 12;
  optional float some_float = 13;
  optional double some_double = 14;
  optional bool some_bool = 15;
  optional AnEnum some_enum = 16;
  optional AnotherMessage some_message = 17;
  repeated string some_repeated_string = 18;
  repeated int32 some_repeated_int = 19;
  repeated int64 some_repeated_long = 20;
  repeated float some_repeated_float = 21;
  repeated double some_repeated_double = 22;
  repeated bool some_repeated_bool = 23;
  repeated AnEnum some_repeated_enum = 24;
  repeated AnotherMessage some_repeated_message = 25;
}

message ContainerMessage {
  extend ExtendableMessage {
    optional bool another_thing = 100;
  }
}