make topology use points_vec

src/core.rs

@@ -89,16 +89,14 @@ pub trait Mentionable<'a, Ctx: 'a + Context>: 'a + Serializable {
     /// Used for walking over object trees to ensure two objects with different references don't collide.
     fn topology(&self) -> Hash {
         let mut vec = Vec::new();
-        let mut points = Vec::new();
-        self.points(&mut points);
-        for point in points {
+        for point in self.points_vec() {
             vec.extend(point.point);
         }
         Ctx::hash(&vec)
     }
     /// References ([Point]s) to other objects.
     fn points(&self, points: &mut Vec<Point<'a, Ctx, TypelessMentionable<'a, Ctx>>>);
-
+    /// [Vec] of [Point]s as used by [`Mentionable::topology`].
     fn points_vec(&self) -> Vec<Point<'a, Ctx, TypelessMentionable<'a, Ctx>>> {
         let mut points = Vec::new();
         self.points(&mut points);