From 92e80170b01173611d0ab33fac55322d429fa89f Mon Sep 17 00:00:00 2001
From: A4-Tacks <wdsjxhno1001@163.com>
Date: Wed, 3 Sep 2025 22:27:56 +0800
Subject: [PATCH] Add `ops::AddAssign` implement for IndentLevel

---
 .../ide-diagnostics/src/handlers/remove_unnecessary_else.rs | 2 +-
 crates/syntax/src/ast/edit.rs                               | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/crates/ide-diagnostics/src/handlers/remove_unnecessary_else.rs b/crates/ide-diagnostics/src/handlers/remove_unnecessary_else.rs
index 7dc5b5b45e5f..04f48ae3db17 100644
--- a/crates/ide-diagnostics/src/handlers/remove_unnecessary_else.rs
+++ b/crates/ide-diagnostics/src/handlers/remove_unnecessary_else.rs
@@ -48,7 +48,7 @@ fn fixes(ctx: &DiagnosticsContext<'_>, d: &RemoveUnnecessaryElse) -> Option<Vec<
     let mut indent = IndentLevel::from_node(if_expr.syntax());
     let has_parent_if_expr = if_expr.syntax().parent().and_then(ast::IfExpr::cast).is_some();
     if has_parent_if_expr {
-        indent = indent + 1;
+        indent += 1;
     }
     let else_replacement = match if_expr.else_branch()? {
         ast::ElseBranch::Block(block) => block
diff --git a/crates/syntax/src/ast/edit.rs b/crates/syntax/src/ast/edit.rs
index 9b30642fe4b0..194d06900a48 100644
--- a/crates/syntax/src/ast/edit.rs
+++ b/crates/syntax/src/ast/edit.rs
@@ -43,6 +43,12 @@ impl ops::Add<u8> for IndentLevel {
     }
 }
 
+impl ops::AddAssign<u8> for IndentLevel {
+    fn add_assign(&mut self, rhs: u8) {
+        self.0 += rhs;
+    }
+}
+
 impl IndentLevel {
     pub fn single() -> IndentLevel {
         IndentLevel(0)