1 files changed, 20 insertions, 0 deletions
diff --git a/src/test/ui/compile-fail-migration/generic-non-trailing-defaults.rs b/src/test/ui/compile-fail-migration/generic-non-trailing-defaults.rs
new file mode 100644
index 00000000000..13b7753082c
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+++ b/src/test/ui/compile-fail-migration/generic-non-trailing-defaults.rs
@@ -0,0 +1,20 @@
+// 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.
+
+struct Heap;
+
+struct Vec<A = Heap, T>(A, T);
+//~^ ERROR type parameters with a default must be trailing
+
+struct Foo<A, B = Vec<C>, C>(A, B, C);
+//~^ ERROR type parameters with a default must be trailing
+//~| ERROR type parameters with a default cannot use forward declared identifiers
+
+fn main() {}