message ExtensionMessage {
extend AllTypes {
optional ExtensionMessage AllTypes_extensionfield2 = 254;
- required ExtensionMessage AllTypes_extensionfield3 = 253;
- repeated ExtensionMessage AllTypes_extensionfield4 = 252;
+ // required ExtensionMessage AllTypes_extensionfield3 = 253; // No longer allowed by protobuf 3
+ repeated ExtensionMessage AllTypes_extensionfield4 = 252;
}
required string test1 = 1;