ClaiR/Rascal: Best way to list public functions?

I am parsing an C++ header file using ClaiR and want to get a list of the public functions.

visit(ast) {
    case \class(_, name(n), _, decs): {
        println("class name: <n>");
        isPublic = true;
        for (dec <- decs) {
            switch(dec) {
                case \visibilityLabel(\public()): {
                    println("Public functions");
                    isPublic = true;
                }
                case \visibilityLabel(\protected()): {
                    println("Protected functions");
                    isPublic = false;
                }
                case \visibilityLabel(\private()): {
                    println("Private functions");
                    isPublic = false;
                }
                case \simpleDeclaration(_, [\functionDeclarator([*_], [*_], name(na), [*_], [*_])]): {
                    if (isPublic) {
                        println("public function: <na>");
                    }
                }
            }
        }
    }
}

The above code works. But is there a better (smaller) way of acquiring the public functions?

There's an M3 modifiers relation which might have the info you're looking for:

• https://github.com/usethesource/rascal/blob/1514b30341525fe66cf99a64ed995052293f09d5/src/org/rascalmpl/library/analysis/m3/Core.rsc#L61
• that relation can be composed with the o operator with the qualified names of your methods to see which modifiers are declared on which method

However, that relation must be extracted of course. Perhaps that still needs to be added to ClaiR?