Move mark & compact GC to top-level module.

src/lib.rs

@@ -13,6 +13,7 @@
 //! * [mutators](mutators/index.html) is a read-write analogue of `nav`.
 
 pub(crate) mod base;
+pub(crate) mod mark_compact;
 pub mod mutators;
 pub mod nav;
 pub mod search;

src/mutators.rs

@@ -14,8 +14,6 @@ use crate::Graph;
 use symbol_map::indexing::{Indexing, Insertion};
 use symbol_map::SymbolId;
 
-pub(crate) mod mark_compact;
-
 /// Mutable handle to a graph vertex ("node handle").
 ///
 /// This zipper-like type enables traversal of a graph along the vertex's

src/view.rs

@@ -473,7 +473,7 @@ where
 
   /// As `retain_reachable_from`, but working over raw `VertexId`s.
   fn retain_reachable_from_ids(mut self, root_ids: &[VertexId]) {
-    mutators::mark_compact::Collector::retain_reachable(&mut self.graph, root_ids);
+    crate::mark_compact::Collector::retain_reachable(&mut self.graph, root_ids);
   }
 }