1 files changed, 47 insertions, 0 deletions
diff --git a/src/test/ui/object-safety-generics.rs b/src/test/ui/object-safety-generics.rs
new file mode 100644
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+++ b/src/test/ui/object-safety-generics.rs
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+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// Check that we correctly prevent users from making trait objects
+// from traits with generic methods, unless `where Self : Sized` is
+// present.
+
+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) -> &Bar {
+        //~^ ERROR E0038
+        //~| NOTE method `bar` has generic type parameters
+        //~| NOTE the trait `Bar` cannot be made into an object
+    t
+}
+
+fn make_bar_explicit<T:Bar>(t: &T) -> &Bar {
+    //~^ ERROR E0038
+    //~| NOTE method `bar` has generic type parameters
+    //~| NOTE the trait `Bar` cannot be made into an object
+    t as &Bar
+}
+
+fn make_quux<T:Quux>(t: &T) -> &Quux {
+    t
+}
+
+fn make_quux_explicit<T:Quux>(t: &T) -> &Quux {
+    t as &Quux
+}
+
+fn main() {
+}