refactor: make LimitedCollection an implementation detail (#3872)

src/index.js

@@ -17,7 +17,6 @@ module.exports = {
   Collection: require('./util/Collection'),
   Constants: require('./util/Constants'),
   DataResolver: require('./util/DataResolver'),
-  LimitedCollection: require('./util/LimitedCollection'),
   BaseManager: require('./managers/BaseManager'),
   DiscordAPIError: require('./rest/DiscordAPIError'),
   HTTPError: require('./rest/HTTPError'),

src/managers/MessageManager.js

@@ -21,7 +21,7 @@ class MessageManager extends BaseManager {
 
   /**
    * The cache of Messages
-   * @type {LimitedCollection<Snowflake, Message>}
+   * @type {Collection<Snowflake, Message>}
    * @name MessageManager#cache
    */
 

src/util/LimitedCollection.js

@@ -8,6 +8,7 @@ const Collection = require('./Collection.js');
  * @extends {Collection}
  * @param {number} [maxSize=0] The maximum size of the Collection
  * @param {Iterable} [iterable=null] Optional entries passed to the Map constructor.
+ * @private
  */
 class LimitedCollection extends Collection {
   constructor(maxSize = 0, iterable = null) {
@@ -24,6 +25,10 @@ class LimitedCollection extends Collection {
     if (this.size >= this.maxSize && !this.has(key)) this.delete(this.firstKey());
     return super.set(key, value);
   }
+
+  static get [Symbol.species]() {
+    return Collection;
+  }
 }
 
 module.exports = LimitedCollection;