}

    @Override
    public boolean hasPendingPreExecutionNodes() {
        return !hasVisitedPreExecutionNode && action.getPreExecutionNode() != null;
    }

    @Override
    public void visitPreExecutionNodes(Consumer<? super Node> visitor) {
        if (!hasVisitedPreExecutionNode) {
            WorkNodeAction preExecutionNode = action.getPreExecutionNode();
            if (preExecutionNode != null) {

    }

    @Override
    public boolean hasPendingPreExecutionNodes() {
        return !hasVisitedMutationsNode;
    }

    @Override
    public void visitPreExecutionNodes(Consumer<? super Node> visitor) {
        if (!hasVisitedMutationsNode) {
            visitor.accept(resolveMutationsNode);
            hasVisitedMutationsNode = true;
        }
    }

     * <p>Note: there is currently no cycle detection applied to these dynamically added nodes or their dependencies.
     * Support for this is not implemented yet and will be added later.
     */
    public void visitPreExecutionNodes(Consumer<? super Node> visitor) {
    }

    public boolean hasPendingPreExecutionNodes() {
        return false;
    }

    /**

                if (node.hasPendingPreExecutionNodes()) {
                    // The node is ready to execute and its pre-execution nodes have not been scheduled, so do this now
                    node.visitPreExecutionNodes(prepareNode -> {
                        prepareNode.setIndex(node.getIndex());
                        prepareNode.require();
                        prepareNode.updateAllDependenciesComplete();

        }

        @Override
        boolean hasPendingPreExecutionNodes() {
            return !preExecuteNodes.isEmpty()
        }

        @Override
        void visitPreExecutionNodes(Consumer<? super Node> visitor) {
            for (final node in preExecuteNodes) {
                visitor.accept(node)
            }
            preExecuteNodes.clear()
        }