1 files changed, 46 insertions, 0 deletions
diff --git a/src/test/ui/object-safety/object-safety-by-value-self.rs b/src/test/ui/object-safety/object-safety-by-value-self.rs
new file mode 100644
index 000000000..c74a4d1cb
--- /dev/null
+++ b/src/test/ui/object-safety/object-safety-by-value-self.rs
@@ -0,0 +1,46 @@
+// Check that a trait with by-value self is considered object-safe.
+
+// build-pass (FIXME(62277): could be check-pass?)
+#![allow(dead_code)]
+#![allow(trivial_casts)]
+
+trait Bar {
+    fn bar(self);
+}
+
+trait Baz {
+    fn baz(self: Self);
+}
+
+trait Quux {
+    // Legal because of the where clause:
+    fn baz(self: Self) where Self : Sized;
+}
+
+fn make_bar<T:Bar>(t: &T) -> &dyn Bar {
+    t // legal
+}
+
+fn make_bar_explicit<T:Bar>(t: &T) -> &dyn Bar {
+    t as &dyn Bar // legal
+}
+
+fn make_baz<T:Baz>(t: &T) -> &dyn Baz {
+    t // legal
+}
+
+fn make_baz_explicit<T:Baz>(t: &T) -> &dyn Baz {
+    t as &dyn Baz // legal
+}
+
+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() {
+}