From 814d617d348c23507fd444e58515c9bff6b73105 Mon Sep 17 00:00:00 2001
From: Lukas Wirth <lukastw97@gmail.com>
Date: Tue, 9 Mar 2021 16:33:41 +0100
Subject: Show whether a binding is mutable or not on hover

---
 crates/hir/src/lib.rs | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

(limited to 'crates/hir')

diff --git a/crates/hir/src/lib.rs b/crates/hir/src/lib.rs
index d5a3d9034..caf4c3395 100644
--- a/crates/hir/src/lib.rs
+++ b/crates/hir/src/lib.rs
@@ -1296,13 +1296,7 @@ impl Local {
 
     pub fn is_mut(self, db: &dyn HirDatabase) -> bool {
         let body = db.body(self.parent.into());
-        match &body[self.pat_id] {
-            Pat::Bind { mode, .. } => match mode {
-                BindingAnnotation::Mutable | BindingAnnotation::RefMut => true,
-                _ => false,
-            },
-            _ => false,
-        }
+        matches!(&body[self.pat_id], Pat::Bind { mode: BindingAnnotation::Mutable, .. })
     }
 
     pub fn parent(self, _db: &dyn HirDatabase) -> DefWithBody {
-- 
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