Macro dot_generator::stmt

macro_rules! stmt {
    ($k:expr) => { ... };
}

represents an element of graph or subgraph which is, in turn, just a wrapper for the underlying structure as node,edge, subgraph etc. #Example:

    fn stmt_test() {
        use dot_generator::*;
        use dot_structures::*;

        assert_eq!(stmt!(node!()), Stmt::Node(Node::new(NodeId(id!(), None), vec![])));
    }