Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

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

1 files changed, 39 insertions, 0 deletions

diff --git a/src/test/ui/object-safety/object-safety-generics.rs b/src/test/ui/object-safety/object-safety-generics.rs
new file mode 100644
index 000000000..63dcd1699
--- /dev/null
+++ b/src/test/ui/object-safety/object-safety-generics.rs
@@ -0,0 +1,39 @@
+// Check that we correctly prevent users from making trait objects
+// from traits with generic methods, unless `where Self : Sized` is
+// present.
+// revisions: curr object_safe_for_dispatch
+
+#![cfg_attr(object_safe_for_dispatch, feature(object_safe_for_dispatch))]
+
+
+trait Bar {
+    fn bar<T>(&self, t: T);
+}
+
+trait Quux {
+    fn bar<T>(&self, t: T)
+        where Self : Sized;
+}
+
+fn make_bar<T:Bar>(t: &T) -> &dyn Bar {
+    //[curr]~^ ERROR E0038
+    t
+    //[object_safe_for_dispatch]~^ ERROR E0038
+}
+
+fn make_bar_explicit<T:Bar>(t: &T) -> &dyn Bar {
+    //[curr]~^ ERROR E0038
+    t as &dyn Bar
+    //[object_safe_for_dispatch]~^ ERROR E0038
+}
+
+fn make_quux<T:Quux>(t: &T) -> &dyn Quux {
+    t
+}
+
+fn make_quux_explicit<T:Quux>(t: &T) -> &dyn Quux {
+    t as &dyn Quux
+}
+
+fn main() {
+}