From b68d3be8be46bea4b73321dd5f57e736e29e4362 Mon Sep 17 00:00:00 2001
From: Vastargazing <vebohr@gmail.com>
Date: Fri, 24 Apr 2026 11:41:52 +0300
Subject: [PATCH] Add regression test for dbg! early drop of temporaries

---
 .../dbg-macro-temp-borrow.rs                  | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 tests/ui/rfcs/rfc-2361-dbg-macro/dbg-macro-temp-borrow.rs

diff --git a/tests/ui/rfcs/rfc-2361-dbg-macro/dbg-macro-temp-borrow.rs b/tests/ui/rfcs/rfc-2361-dbg-macro/dbg-macro-temp-borrow.rs
new file mode 100644
index 0000000000000..b101dbe165d80
--- /dev/null
+++ b/tests/ui/rfcs/rfc-2361-dbg-macro/dbg-macro-temp-borrow.rs
@@ -0,0 +1,19 @@
+//@ run-pass
+
+// Regression test for <https://github.com/rust-lang/rust/issues/153850>
+// `dbg!` must not drop arguments' temporaries early in multi-arg form.
+
+fn id() -> i32 {
+    42
+}
+
+fn main() {
+    assert_eq!(*dbg!(&id()), 42);
+
+    assert_eq!(dbg!(0, &id()).0, 0);
+    assert_eq!(*dbg!(&id(), 1).0, 42);
+    assert_eq!(*dbg!(0, &id(), 2).1, 42);
+
+    let f = || *dbg!(0, &id()).1;
+    assert_eq!(f(), 42);
+}
\ No newline at end of file