1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/unsized/maybe-bounds-where.rs b/src/test/ui/unsized/maybe-bounds-where.rs
new file mode 100644
index 000000000..d7af0c424
--- /dev/null
+++ b/src/test/ui/unsized/maybe-bounds-where.rs
@@ -0,0 +1,28 @@
+struct S1<T>(T) where (T): ?Sized;
+//~^ ERROR `?Trait` bounds are only permitted at the point where a type parameter is declared
+
+struct S2<T>(T) where u8: ?Sized;
+//~^ ERROR `?Trait` bounds are only permitted at the point where a type parameter is declared
+
+struct S3<T>(T) where &'static T: ?Sized;
+//~^ ERROR `?Trait` bounds are only permitted at the point where a type parameter is declared
+
+trait Trait<'a> {}
+
+struct S4<T>(T) where for<'a> T: ?Trait<'a>;
+//~^ ERROR `?Trait` bounds are only permitted at the point where a type parameter is declared
+//~| WARN default bound relaxed for a type parameter
+
+struct S5<T>(*const T) where T: ?Trait<'static> + ?Sized;
+//~^ ERROR type parameter has more than one relaxed default bound
+//~| WARN default bound relaxed for a type parameter
+
+impl<T> S1<T> {
+    fn f() where T: ?Sized {}
+    //~^ ERROR `?Trait` bounds are only permitted at the point where a type parameter is declared
+}
+
+fn main() {
+    let u = vec![1, 2, 3];
+    let _s: S5<[u8]> = S5(&u[..]); // OK
+}