1 files changed, 72 insertions, 0 deletions
diff --git a/tests/ui/specialization/auxiliary/specialization_cross_crate.rs b/tests/ui/specialization/auxiliary/specialization_cross_crate.rs
new file mode 100644
index 000000000..8caa8524f
--- /dev/null
+++ b/tests/ui/specialization/auxiliary/specialization_cross_crate.rs
@@ -0,0 +1,72 @@
+#![feature(specialization)]
+
+pub trait Foo {
+    fn foo(&self) -> &'static str;
+}
+
+impl<T> Foo for T {
+    default fn foo(&self) -> &'static str {
+        "generic"
+    }
+}
+
+impl<T: Clone> Foo for T {
+    default fn foo(&self) -> &'static str {
+        "generic Clone"
+    }
+}
+
+impl<T, U> Foo for (T, U) where T: Clone, U: Clone {
+    default fn foo(&self) -> &'static str {
+        "generic pair"
+    }
+}
+
+impl<T: Clone> Foo for (T, T) {
+    default fn foo(&self) -> &'static str {
+        "generic uniform pair"
+    }
+}
+
+impl Foo for (u8, u32) {
+    default fn foo(&self) -> &'static str {
+        "(u8, u32)"
+    }
+}
+
+impl Foo for (u8, u8) {
+    default fn foo(&self) -> &'static str {
+        "(u8, u8)"
+    }
+}
+
+impl<T: Clone> Foo for Vec<T> {
+    default fn foo(&self) -> &'static str {
+        "generic Vec"
+    }
+}
+
+impl Foo for Vec<i32> {
+    fn foo(&self) -> &'static str {
+        "Vec<i32>"
+    }
+}
+
+impl Foo for String {
+    fn foo(&self) -> &'static str {
+        "String"
+    }
+}
+
+impl Foo for i32 {
+    fn foo(&self) -> &'static str {
+        "i32"
+    }
+}
+
+pub trait MyMarker {}
+impl<T: Clone + MyMarker> Foo for T {
+    default fn foo(&self) -> &'static str {
+        "generic Clone + MyMarker"
+    }
+}