From 4df47a09a42620f018bdaed733fdbc4049a65e78 Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Mon, 2 Dec 2024 17:37:03 -0800
Subject: [PATCH] Add test of closure precedence with return type

---
 tests/ui-fulldeps/pprust-parenthesis-insertion.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/ui-fulldeps/pprust-parenthesis-insertion.rs b/tests/ui-fulldeps/pprust-parenthesis-insertion.rs
index f535db06879f..6535367927ef 100644
--- a/tests/ui-fulldeps/pprust-parenthesis-insertion.rs
+++ b/tests/ui-fulldeps/pprust-parenthesis-insertion.rs
@@ -73,6 +73,9 @@ static EXPRS: &[&str] = &[
     // Closures and jumps have equal precedence.
     "|| return break 2",
     "return break || 2",
+    // Closures with a return type have especially high precedence.
+    "(|| -> T { x }) + 1", // FIXME: no parenthesis needed.
+    "(|| { x }) + 1",
     // These mean different things.
     "if let _ = true && false {}",
     "if let _ = (true && false) {}",