Method apply_impl

datafusion/common/src/tree_node.rs:201–206

(
            node: &'n N,
            f: &mut F,
        )

    ) -> Result<TreeNodeRecursion> {
        #[cfg_attr(feature = "recursive_protection", recursive::recursive)]
        fn apply_impl<'n, N: TreeNode, F: FnMut(&'n N) -> Result<TreeNodeRecursion>>(
            node: &'n N,
            f: &mut F,
        ) -> Result<TreeNodeRecursion> {
            f(node)?.visit_children(|| node.apply_children(|c| apply_impl(c, f)))
        }

        apply_impl(self, &mut f)
    }