UTILS: Update DKMap

lektor_utils/src/dkmap.rs

@@ -7,12 +7,8 @@ use std::mem;
 
 #[derive(Debug, Serialize, Deserialize, Default, Clone)]
 pub struct DKMap<K1: Hash + Eq, K2: Hash + Eq, Values> {
-    #[serde(skip)]
     primary_key_mapping: HashMap<K1, usize>,
-
-    #[serde(skip)]
     secondary_key_mapping: HashMap<K2, Vec<usize>>,
-
     values: Vec<Values>,
 }
 
@@ -65,18 +61,11 @@ where
                 self.values.push(value);
                 let index = self.values.len() - 1;
                 self.primary_key_mapping.insert(k1, index);
-                self.add_secondary_key_mapping(index, &k2);
-                None
-            }
-        }
-    }
-
-    fn add_secondary_key_mapping(&mut self, index: usize, secondary_key: &K2) {
-        match self.secondary_key_mapping.get_mut(secondary_key) {
-            Some(indexes) => indexes.push(index),
-            None => {
                 self.secondary_key_mapping
-                    .insert(secondary_key.clone(), vec![index]);
+                    .entry(k2)
+                    .or_default()
+                    .push(index);
+                None
             }
         }
     }