gistfile1.rs

fn linked_face(vertexes: &[Rc<RefCell<Vertex>>], face: UnlinkedFace) -> Option<RefCell<Face>> {
    Some(RefCell::new(Face {
        a: match vertexes.get(face.a) {
            Some(x) => x.clone(),
            None => return None
        },
        b: match vertexes.get(face.b) {
            Some(x) => x.clone(),
            None => return None
        },
        c: match vertexes.get(face.c) {
            Some(x) => x.clone(),
            None => return None
        },
        d: match vertexes.get(face.d) {
            Some(x) => x.clone(),
            None => return None
        }
    }))
}

fn linked_face(vertexes: &[Rc<RefCell<Vertex>>], face: UnlinkedFace) -> Option<RefCell<Face>> {
    let a = match vertexes.get(face.a) {
        Some(x) => x.clone(),
        None => return None
    };
    let b = match vertexes.get(face.b) {
        Some(x) => x.clone(),
        None => return None
    };
    let c = match vertexes.get(face.c) {
        Some(x) => x.clone(),
        None => return None
    };
    let d = match vertexes.get(face.d) {
        Some(x) => x.clone(),
        None => return None
    };
    Some(RefCell::new(Face { a: a, b: b, c: c, d: d }))
}

fn linked_face(vertexes: &[Rc<RefCell<Vertex>>], face: UnlinkedFace) -> Option<RefCell<Face>> {
    macro_rules! face {
        ($field:ident) => (match vertexes.get(face.$field) {
            Some(x) => x.clone(),
            None => return None
        })
    }
    Some(RefCell::new(Face {
        a: face!(a),
        b: face!(b),
        c: face!(c),
        d: face!(d)
    }))
}

fn linked_face(vertexes: &[Rc<RefCell<Vertex>>], face: UnlinkedFace) -> Option<RefCell<Face>> {
    macro_rules! face {
        ($($field:ident),+) => (Face {$(
            $field: match vertexes.get(face.$field) {
                Some(x) => x.clone(),
                None => return None
            }
        ),*})
    }
    Some(RefCell::new(face!(a, b, c, d)))
}