Rename EntityMap to ElementMap (tests not yet updated)

src/models/graph.rs

@@ -2,7 +2,7 @@
 
 use typed_generational_arena::{Arena, Index};
 
-use crate::maps::EntityMap;
+use crate::maps::ElementMap;
 use crate::traits::{
     GraphTopology, GraphTopologyAddition, GraphTopologyDeletion, Incidence, IncidenceCursor,
 };
@@ -19,11 +19,11 @@ pub type Vertex = Index<VertexIncidenceHeader, usize, usize>;
 /// deleted. Obtain via graph methods like [`Graph::add_edge`] and [`Graph::edges`].
 pub type Edge = Index<IncidenceEntry, usize, usize>;
 
-/// An [`EntityMap`] for [`Graph`] vertices.
-pub type GraphVertexMap<T> = EntityMap<Vertex, T>;
+/// An [`ElementMap`] for [`Graph`] vertices.
+pub type GraphVertexMap<T> = ElementMap<Vertex, T>;
 
-/// An [`EntityMap`] for [`Graph`] edges.
-pub type GraphEdgeMap<T> = EntityMap<Edge, T>;
+/// An [`ElementMap`] for [`Graph`] edges.
+pub type GraphEdgeMap<T> = ElementMap<Edge, T>;
 
 /// An [`Incidence`] for [`Graph`].
 pub type GraphIncidence = Incidence<Vertex, Edge>;
@@ -241,16 +241,16 @@ impl GraphTopology for Graph {
         self.vertices.len()
     }
 
-    fn vertex_map<T: Clone>(&self, default: T) -> EntityMap<Self::Vertex, T> {
-        EntityMap::new(default, |v| v.arr_idx(), self.vertex_capacity())
+    fn vertex_map<T: Clone>(&self, default: T) -> ElementMap<Self::Vertex, T> {
+        ElementMap::new(default, |v| v.arr_idx(), self.vertex_capacity())
     }
 
     fn edge_count(&self) -> usize {
         self.incidences.len() / 2
     }
 
-    fn edge_map<T: Clone>(&self, default: T) -> EntityMap<Self::Edge, T> {
-        EntityMap::new(default, |e| e.arr_idx() / 2, self.edge_capacity())
+    fn edge_map<T: Clone>(&self, default: T) -> ElementMap<Self::Edge, T> {
+        ElementMap::new(default, |e| e.arr_idx() / 2, self.edge_capacity())
     }
 
     fn degree(&self, v: Self::Vertex) -> usize {