Method clj

chapter24/src/test/java/com/seaofnodes/simple/Eval2.java:300–300

(Node n)

    static TypeFunPtr tfp(Node n) { return (TypeFunPtr)F.get(n); }
    // Fetch and unbox a closure
    static Closure clj(Node n) { return (Closure)F.get(n); }

    // Java box ints and floats.  Other things can just be null or some informative string
    private static Object con( Type t ) {