Merge tag 'debian/1.52.1+dfsg1-1_exp2' into proxmox/buster

[rustc.git] / src / test / ui / borrowck / issue-81365-3.rs

diff --git a/src/test/ui/borrowck/issue-81365-3.rs b/src/test/ui/borrowck/issue-81365-3.rs
new file mode 100644 (file)
index 0000000..9a9e3a3
--- /dev/null
+++ b/src/test/ui/borrowck/issue-81365-3.rs
@@ -0,0 +1,37 @@
+use std::ops::Deref;
+
+struct DerefTarget {
+    target_field: bool,
+}
+struct Container {
+    target: DerefTarget,
+    container_field: bool,
+}
+
+impl Deref for Container {
+    type Target = DerefTarget;
+    fn deref(&self) -> &Self::Target {
+        &self.target
+    }
+}
+
+struct Outer {
+    container: Container,
+}
+
+impl Deref for Outer {
+    type Target = Container;
+    fn deref(&self) -> &Self::Target {
+        &self.container
+    }
+}
+
+impl Outer {
+    fn bad_borrow(&mut self) {
+        let first = &self.target_field;
+        self.container.container_field = true; //~ ERROR E0506
+        first;
+    }
+}
+
+fn main() {}