relocate enum

Author: molpopgen

src/lib.rs

@@ -115,10 +115,11 @@ pub use node_table::{NodeDefaults, NodeDefaultsWithMetadata, NodeTable, NodeTabl
 pub use population_table::{PopulationTable, PopulationTableRow};
 pub use site_table::{SiteTable, SiteTableRow};
 pub use sys::flags::*;
+pub use sys::NodeTraversalOrder;
 pub use table_collection::TableCollection;
 pub use traits::IndividualLocation;
 pub use traits::IndividualParents;
-pub use tree_interface::{NodeTraversalOrder, TreeInterface};
+pub use tree_interface::TreeInterface;
 pub use trees::{Tree, TreeSequence};
 
 // Optional features

src/sys/mod.rs

@@ -42,6 +42,7 @@ pub use provenance_table::ProvenanceTable;
 pub use site_table::SiteTable;
 pub use table_collection::*;
 pub use tree::LLTree;
+pub use tree::NodeTraversalOrder;
 pub use treeseq::TreeSequence;
 
 use traits::TskTeardown;

src/sys/tree.rs

@@ -286,3 +286,15 @@ impl NodeIterator for SamplesIterator<'_> {
         self.current_node
     }
 }
+
+#[non_exhaustive]
+pub enum NodeTraversalOrder {
+    ///Preorder traversal, starting at the root(s) of a [`TreeInterface`].
+    ///For trees with multiple roots, start at the left root,
+    ///traverse to tips, proceeed to the next root, etc..
+    Preorder,
+    ///Postorder traversal, starting at the root(s) of a [`TreeInterface`].
+    ///For trees with multiple roots, start at the left root,
+    ///traverse to tips, proceeed to the next root, etc..
+    Postorder,
+}