From 97e0dc330fb4dfc3fc5161fbba1f0b4193d80bc9 Mon Sep 17 00:00:00 2001
From: tinaun <tinagma@gmail.com>
Date: Sat, 3 Mar 2018 17:32:47 -0500
Subject: [PATCH] added test

---
 .../ui/impl-trait/universal-issue-48703.rs    | 19 +++++++++++++++++++
 .../impl-trait/universal-issue-48703.stderr   |  9 +++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 src/test/ui/impl-trait/universal-issue-48703.rs
 create mode 100644 src/test/ui/impl-trait/universal-issue-48703.stderr

diff --git a/src/test/ui/impl-trait/universal-issue-48703.rs b/src/test/ui/impl-trait/universal-issue-48703.rs
new file mode 100644
index 0000000000000..e017b37b7b733
--- /dev/null
+++ b/src/test/ui/impl-trait/universal-issue-48703.rs
@@ -0,0 +1,19 @@
+// Copyright 2017 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.
+
+#![feature(universal_impl_trait)]
+
+use std::fmt::Debug;
+
+fn foo<T>(x: impl Debug) { }
+
+fn main() {
+    foo::<String>('a'); //~ ERROR cannot provide explicit type parameters
+}
diff --git a/src/test/ui/impl-trait/universal-issue-48703.stderr b/src/test/ui/impl-trait/universal-issue-48703.stderr
new file mode 100644
index 0000000000000..ea509684f9efc
--- /dev/null
+++ b/src/test/ui/impl-trait/universal-issue-48703.stderr
@@ -0,0 +1,9 @@
+error[E0632]: cannot provide explicit type parameters when `impl Trait` is used in argument position.
+  --> $DIR/universal-issue-48703.rs:18:5
+   |
+LL |     foo::<String>('a'); //~ ERROR cannot provide explicit type parameters
+   |     ^^^^^^^^^^^^^
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0632`.