From b8a31360a220e3d796f5381bd215d30a379ecb7c Mon Sep 17 00:00:00 2001
From: Almeida <almeidx@pm.me>
Date: Mon, 8 Aug 2022 10:10:32 +0100
Subject: [PATCH] fix(MessageMentions): infinite loop in `parsedUsers` getter
 (#8430)

---
 packages/discord.js/src/structures/MessageMentions.js | 10 +++++++++-
 packages/discord.js/typings/index.d.ts                |  3 ++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/packages/discord.js/src/structures/MessageMentions.js b/packages/discord.js/src/structures/MessageMentions.js
index b142a6c68373..a07e77fb5d70 100644
--- a/packages/discord.js/src/structures/MessageMentions.js
+++ b/packages/discord.js/src/structures/MessageMentions.js
@@ -48,6 +48,14 @@ class MessageMentions {
    */
   static GlobalChannelsPattern = new RegExp(this.ChannelsPattern.source, 'g');
 
+  /**
+   * A global regular expression variant of {@link MessageMentions.UsersPattern}.
+   * @type {RegExp}
+   * @memberof MessageMentions
+   * @private
+   */
+  static GlobalUsersPattern = new RegExp(this.UsersPattern.source, 'g');
+
   constructor(message, users, roles, everyone, crosspostedChannels, repliedUser) {
     /**
      * The client the message is from
@@ -225,7 +233,7 @@ class MessageMentions {
     if (this._parsedUsers) return this._parsedUsers;
     this._parsedUsers = new Collection();
     let matches;
-    while ((matches = this.constructor.UsersPattern.exec(this._content)) !== null) {
+    while ((matches = this.constructor.GlobalUsersPattern.exec(this._content)) !== null) {
       const user = this.client.users.cache.get(matches[1]);
       if (user) this._parsedUsers.set(user.id, user);
     }
diff --git a/packages/discord.js/typings/index.d.ts b/packages/discord.js/typings/index.d.ts
index cd8fe8804c62..617e96c90fc4 100644
--- a/packages/discord.js/typings/index.d.ts
+++ b/packages/discord.js/typings/index.d.ts
@@ -1881,8 +1881,9 @@ export class MessageMentions {
   public crosspostedChannels: Collection<Snowflake, CrosspostedChannel>;
   public toJSON(): unknown;
 
-  public static ChannelsPattern: typeof FormattingPatterns.Channel;
   private static GlobalChannelsPattern: RegExp;
+  private static GlobalUsersPattern: RegExp;
+  public static ChannelsPattern: typeof FormattingPatterns.Channel;
   public static EveryonePattern: RegExp;
   public static RolesPattern: typeof FormattingPatterns.Role;
   public static UsersPattern: typeof FormattingPatterns.User;