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-rw-r--r--src/test/ui/nll/issue-45157.rs31
1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/nll/issue-45157.rs b/src/test/ui/nll/issue-45157.rs
new file mode 100644
index 000000000..8d2bf22a0
--- /dev/null
+++ b/src/test/ui/nll/issue-45157.rs
@@ -0,0 +1,31 @@
+#![allow(unused)]
+
+
+#[derive(Clone, Copy, Default)]
+struct S {
+ a: u8,
+ b: u8,
+}
+#[derive(Clone, Copy, Default)]
+struct Z {
+ c: u8,
+ d: u8,
+}
+
+union U {
+ s: S,
+ z: Z,
+}
+
+fn main() {
+ unsafe {
+ let mut u = U { s: Default::default() };
+
+ let mref = &mut u.s.a;
+ *mref = 22;
+
+ let nref = &u.z.c;
+ //~^ ERROR cannot borrow `u` (via `u.z.c`) as immutable because it is also borrowed as mutable (via `u.s.a`) [E0502]
+ println!("{} {}", mref, nref)
+ }
+}