Method eval

src/chap10/ArrayEvaluator.java:17–24

(Environment env)

    @Reviser public static class ArrayLitEx extends ArrayLiteral {
        public ArrayLitEx(List<ASTree> list) { super(list); }
        public Object eval(Environment env) {
            int s = numChildren();
            Object[] res = new Object[s];
            int i = 0;
            for (ASTree t: this)
                res[i++] = ((ASTreeEx)t).eval(env);
            return res;
        }
    }
    @Reviser public static class ArrayRefEx extends ArrayRef {
        public ArrayRefEx(List<ASTree> c) { super(c); }