feat(Util): add SweptCollection for auto sweeping of caches (#6110)

Co-authored-by: DTrombett <73136330+DTrombett@users.noreply.github.com>
Co-authored-by: 1Computer1 <22125769+1Computer1@users.noreply.github.com>
Co-authored-by: Antonio Román <kyradiscord@gmail.com>
Co-authored-by: NotSugden <28943913+NotSugden@users.noreply.github.com>
Co-authored-by: Shino <shinotheshino@gmail.com>
Co-authored-by: SpaceEEC <24881032+SpaceEEC@users.noreply.github.com>
Co-authored-by: Noel <icrawltogo@gmail.com>
Co-authored-by: Vlad Frangu <kingdgrizzle@gmail.com>

src/managers/ApplicationCommandPermissionsManager.js

@@ -16,6 +16,7 @@ class ApplicationCommandPermissionsManager extends BaseManager {
     /**
      * The manager or command that this manager belongs to
      * @type {ApplicationCommandManager|ApplicationCommand}
+     * @private
      */
     this.manager = manager;
 

src/managers/CachedManager.js

@@ -1,6 +1,7 @@
 'use strict';
 
 const DataManager = require('./DataManager');
+const { _cleanupSymbol } = require('../util/Constants');
 
 /**
  * Manages the API methods of a data model with a mutable cache of instances.
@@ -13,6 +14,19 @@ class CachedManager extends DataManager {
 
     Object.defineProperty(this, '_cache', { value: this.client.options.makeCache(this.constructor, this.holds) });
 
+    let cleanup = this._cache[_cleanupSymbol];
+    if (cleanup) {
+      cleanup = cleanup.bind(this._cache);
+      client._cleanups.add(cleanup);
+      client._finalizers.register(this, {
+        cleanup,
+        message:
+          `Garbage Collection completed on ${this.constructor.name}, ` +
+          `which had a ${this._cache.constructor.name} of ${this.holds.name}.`,
+        name: this.constructor.name,
+      });
+    }
+
     if (iterable) {
       for (const item of iterable) {
         this._add(item);

src/managers/GuildEmojiRoleManager.js

@@ -72,7 +72,7 @@ class GuildEmojiRoleManager extends DataManager {
       resolvedRoleIds.push(roleId);
     }
 
-    const newRoles = this.cache.keyArray().filter(id => !resolvedRoleIds.includes(id));
+    const newRoles = [...this.cache.keys()].filter(id => !resolvedRoleIds.includes(id));
     return this.set(newRoles);
   }
 
@@ -97,7 +97,7 @@ class GuildEmojiRoleManager extends DataManager {
 
   clone() {
     const clone = new this.constructor(this.emoji);
-    clone._patch(this.cache.keyArray().slice());
+    clone._patch([...this.cache.keys()]);
     return clone;
   }
 

src/managers/GuildMemberRoleManager.js

@@ -172,7 +172,7 @@ class GuildMemberRoleManager extends DataManager {
 
   clone() {
     const clone = new this.constructor(this.member);
-    clone.member._roles = [...this.cache.keyArray()];
+    clone.member._roles = [...this.cache.keys()];
     return clone;
   }
 }