From a4b7ed7a42c716ab9f05e351f003d589124fd55d Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:18:58 +0200
Subject: Adding upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/ui/issues/issue-18783.rs | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 tests/ui/issues/issue-18783.rs

(limited to 'tests/ui/issues/issue-18783.rs')

diff --git a/tests/ui/issues/issue-18783.rs b/tests/ui/issues/issue-18783.rs
new file mode 100644
index 000000000..d4851ac14
--- /dev/null
+++ b/tests/ui/issues/issue-18783.rs
@@ -0,0 +1,28 @@
+use std::cell::RefCell;
+
+fn main() {
+    let mut y = 1;
+    let c = RefCell::new(vec![]);
+    c.push(Box::new(|| y = 0));
+    c.push(Box::new(|| y = 0));
+//~^ ERROR cannot borrow `y` as mutable more than once at a time
+}
+
+fn ufcs() {
+    let mut y = 1;
+    let c = RefCell::new(vec![]);
+
+    Push::push(&c, Box::new(|| y = 0));
+    Push::push(&c, Box::new(|| y = 0));
+//~^ ERROR cannot borrow `y` as mutable more than once at a time
+}
+
+trait Push<'c> {
+    fn push<'f: 'c>(&self, push: Box<dyn FnMut() + 'f>);
+}
+
+impl<'c> Push<'c> for RefCell<Vec<Box<dyn FnMut() + 'c>>> {
+    fn push<'f: 'c>(&self, fun: Box<dyn FnMut() + 'f>) {
+        self.borrow_mut().push(fun)
+    }
+}
-- 
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