Add regression test for #11561

2023-10-06 11:24:35 +02:00 · 2023-10-06 11:24:35 +02:00 · 3e6db95e30
commit 3e6db95e30
parent 3b4b07c5f8
1 changed files with 5 additions and 0 deletions
--- a/tests/ui/needless_pass_by_ref_mut.rs
+++ b/tests/ui/needless_pass_by_ref_mut.rs
@ -297,6 +297,11 @@ fn true_setter(b: &mut bool) -> impl FnOnce() + '_ {
    move || set_true(b)
 }

+// Should not warn.
+fn filter_copy<T: Copy>(predicate: &mut impl FnMut(T) -> bool) -> impl FnMut(&T) -> bool + '_ {
+    move |&item| predicate(item)
+}
+
 fn main() {
    let mut u = 0;
    let mut v = vec![0];