Method callClosureForNode

src/main/java/groovy/util/Node.java:646–651

(Closure<T> closure, Object node, int level)

    }

    private static <T> T callClosureForNode(Closure<T> closure, Object node, int level) {
        if (closure.getMaximumNumberOfParameters() == 2) {
            return closure.call(node, level);
        }
        return closure.call(node);
    }

    private void depthFirstRest(boolean preorder, int level, Closure c) {
        for (Iterator iter = InvokerHelper.asIterator(value); iter.hasNext(); ) {