Oneof can't use property with type of another message?

[Tsarfolk]

I have such code in my photo file, i can compile it into swift file and everything ok
message Subject {
oneof subjects {
string maths = 1;
string physics = 2;
Informatics informatics = 3;
}
}

message Informatics {
enum Themes {
CPLUSPLUS = 1;
JAVA = 2;
PASCAL = 3;
BASIC = 4;
}

optional Themes theme = 1;

}

But when i added compiled swift file i got 3 errors on Informatics (Use of undeclared type "Informatics"). Had I done smth wrong? protobuf version is 2.6.1

[alexeyxo]

For a temporary solution I can offer - rename OneOf field named "informatics":

message Subject {
    oneof subjects {
        string maths = 1;
        string physics = 2;
        Informatics informaticsField = 3;
    }
}

message Informatics {
    enum Themes {
        CPLUSPLUS = 1;
        JAVA = 2;
        PASCAL = 3;
        BASIC = 4;
    }
    optional Themes theme = 1;
}

[Tsarfolk]

It can be fixed by placing it after // oneOf declaration
public typealias inf = (Informatics)

and changing type Informatics to inf
But it's a bit harder i think then the solution above