Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 43 insertions, 0 deletions

diff --git a/tests/ui/variance/variance-issue-20533.rs b/tests/ui/variance/variance-issue-20533.rs
new file mode 100644
index 000000000..a2459f873
--- /dev/null
+++ b/tests/ui/variance/variance-issue-20533.rs
@@ -0,0 +1,43 @@
+// Regression test for issue #20533. At some point, only 1 out of the
+// 3 errors below were being reported.
+
+use std::marker::PhantomData;
+
+fn foo<'a, T>(_x: &'a T) -> PhantomData<&'a ()> {
+    PhantomData
+}
+
+struct Wrap<T>(T);
+
+fn bar<'a, T>(_x: &'a T) -> Wrap<PhantomData<&'a ()>> {
+    Wrap(PhantomData)
+}
+
+struct Baked<'a>(PhantomData<&'a ()>);
+
+fn baz<'a, T>(_x: &'a T) -> Baked<'a> {
+    Baked(PhantomData)
+}
+
+struct AffineU32(u32);
+
+fn main() {
+    {
+        let a = AffineU32(1);
+        let x = foo(&a);
+        drop(a); //~ ERROR cannot move out of `a`
+        drop(x);
+    }
+    {
+        let a = AffineU32(1);
+        let x = bar(&a);
+        drop(a); //~ ERROR cannot move out of `a`
+        drop(x);
+    }
+    {
+        let a = AffineU32(1);
+        let x = baz(&a);
+        drop(a); //~ ERROR cannot move out of `a`
+        drop(x);
+    }
+}