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use super::{breadth_first::Bfs, depth_first::Dfs, post_order::PostOrder};
/// Type with methods allowing to create different [`Traverser`] types with
/// different walk strategies, such as depth-first, breadth-first or post-order.
///
/// [`Traverser`]: crate::traversal::Traverser
#[derive(Clone, Copy)]
pub struct Traversal;
impl Traversal {
/// Creates the default (pre-order) depth-first-search traverser
/// ([Wikipedia](https://en.wikipedia.org/wiki/Depth-first_search)).
///
/// The default traverser creates iterators that yield references or mutable references
/// to the node data; i.e., [`OverData`].
///
/// However, item type of the iterators that the traverser creates can be transformed
/// any time using the transformation methods:
///
/// * [`over_data`]
/// * [`over_nodes`]
/// * [`with_depth`]
/// * [`with_sibling_idx`]
///
/// [`OverData`]: crate::traversal::OverData
/// [`over_data`]: crate::traversal::Traverser::over_data
/// [`over_nodes`]: crate::traversal::Traverser::over_nodes
/// [`with_depth`]: crate::traversal::Traverser::with_depth
/// [`with_sibling_idx`]: crate::traversal::Traverser::with_sibling_idx
pub fn dfs(self) -> Dfs {
Default::default()
}
/// Creates the default breadth-first-search traverser, also known as level-order
/// ([wikipedia](https://en.wikipedia.org/wiki/Tree_traversal#Breadth-first_search))
///
/// The default traverser creates iterators that yield references or mutable references
/// to the node data; i.e., [`OverData`].
///
/// However, item type of the iterators that the traverser creates can be transformed
/// any time using the transformation methods:
///
/// * [`over_data`]
/// * [`over_nodes`]
/// * [`with_depth`]
/// * [`with_sibling_idx`]
///
/// [`OverData`]: crate::traversal::OverData
/// [`over_data`]: crate::traversal::Traverser::over_data
/// [`over_nodes`]: crate::traversal::Traverser::over_nodes
/// [`with_depth`]: crate::traversal::Traverser::with_depth
/// [`with_sibling_idx`]: crate::traversal::Traverser::with_sibling_idx
pub fn bfs(self) -> Bfs {
Default::default()
}
/// Creates the default post-order traverser
/// ([Wikipedia](https://en.wikipedia.org/wiki/Tree_traversal#Post-order,_LRN)).
///
/// The default traverser creates iterators that yield references or mutable references
/// to the node data; i.e., [`OverData`].
///
/// However, item type of the iterators that the traverser creates can be transformed
/// any time using the transformation methods:
///
/// * [`over_data`]
/// * [`over_nodes`]
/// * [`with_depth`]
/// * [`with_sibling_idx`]
///
/// [`OverData`]: crate::traversal::OverData
/// [`over_data`]: crate::traversal::Traverser::over_data
/// [`over_nodes`]: crate::traversal::Traverser::over_nodes
/// [`with_depth`]: crate::traversal::Traverser::with_depth
/// [`with_sibling_idx`]: crate::traversal::Traverser::with_sibling_idx
pub fn post_order(self) -> PostOrder {
Default::default()
}
}