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;
}

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

// For testNanoOptionalGroupWithUnknownFieldsEnabled;
// not part of the extensions tests.
message MessageWithGroup {
  optional group Group = 1 {
    optional int32 a = 2;
  }
}