Recursive trees in Rust!

enumtree.rs

//! Recursive enumerable types! Freaking cool!

#[derive(Debug)]
pub enum BinTree<T> {
    Value(T,
          Option<Box<BinTree<T>>>,
          Option<Box<BinTree<T>>>),
}

fn main() -> () {
    let tree: BinTree<u32> =
        BinTree::Value(1,
              Some(Box::new(BinTree::Value(2, None, None))),
              Some(
                  Box::new(BinTree::Value(3,
                        Some(Box::new(BinTree::Value(4, None, None))), None)),
              ),
          );

    println!("{:#?}", tree);
}