From 4efc2a9df21f796b71588d0ae8b14ca29f4a1919 Mon Sep 17 00:00:00 2001
From: Jake Heinz <jh@discordapp.com>
Date: Sun, 15 May 2022 07:55:13 +0000
Subject: [PATCH] ide: insert whitespace between 'mut' and 'self' in macro
 expansion

---
 .../ide-db/src/syntax_helpers/insert_whitespace_into_node.rs   | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crates/ide-db/src/syntax_helpers/insert_whitespace_into_node.rs b/crates/ide-db/src/syntax_helpers/insert_whitespace_into_node.rs
index e389eaf0478..16e609b1a7e 100644
--- a/crates/ide-db/src/syntax_helpers/insert_whitespace_into_node.rs
+++ b/crates/ide-db/src/syntax_helpers/insert_whitespace_into_node.rs
@@ -88,6 +88,9 @@ pub fn insert_ws_into(syn: SyntaxNode) -> SyntaxNode {
             LIFETIME_IDENT if is_next(is_text, true) => {
                 mods.push(do_ws(after, tok));
             }
+            MUT_KW if is_next(|it| it == SELF_KW, false) => {
+                mods.push(do_ws(after, tok));
+            }
             AS_KW | DYN_KW | IMPL_KW | CONST_KW => {
                 mods.push(do_ws(after, tok));
             }