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-rw-r--r--tests/ui/regions/regions-adjusted-lvalue-op.rs16
1 files changed, 16 insertions, 0 deletions
diff --git a/tests/ui/regions/regions-adjusted-lvalue-op.rs b/tests/ui/regions/regions-adjusted-lvalue-op.rs
new file mode 100644
index 000000000..5aa5a3ecb
--- /dev/null
+++ b/tests/ui/regions/regions-adjusted-lvalue-op.rs
@@ -0,0 +1,16 @@
+// check that we link regions in mutable place ops correctly - issue #41774
+
+struct Data(i32);
+
+trait OhNo {
+ fn oh_no(&mut self, other: &Vec<Data>) { loop {} }
+}
+
+impl OhNo for Data {}
+impl OhNo for [Data] {}
+
+fn main() {
+ let mut v = vec![Data(0)];
+ v[0].oh_no(&v); //~ ERROR cannot borrow `v` as immutable because
+ (*v).oh_no(&v); //~ ERROR cannot borrow `v` as immutable because
+}