From d3d14d6a41141c4780b9d0ddcdfa3748036de570 Mon Sep 17 00:00:00 2001
From: wickerwaka <martin.donlon@gmail.com>
Date: Fri, 29 Aug 2014 21:11:34 -0700
Subject: [PATCH] Added cfail test Changed error to 'use of trait `{}` as a
 struct constructor'

---
 src/librustc/middle/typeck/check/mod.rs         |  2 +-
 .../compile-fail/trait-as-struct-constructor.rs | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 src/test/compile-fail/trait-as-struct-constructor.rs

diff --git a/src/librustc/middle/typeck/check/mod.rs b/src/librustc/middle/typeck/check/mod.rs
index d26aa2be0a41..d4640019cdf9 100644
--- a/src/librustc/middle/typeck/check/mod.rs
+++ b/src/librustc/middle/typeck/check/mod.rs
@@ -4000,7 +4000,7 @@ fn check_expr_with_unifier(fcx: &FnCtxt,
             }
             Some(def::DefTrait(def_id)) => {
                 span_err!(tcx.sess, path.span, E0159,
-                    "`{}` is a trait not a structure",
+                    "use of trait `{}` as a struct constructor",
                     pprust::path_to_string(path));
                 check_struct_fields_on_error(fcx,
                                              id,
diff --git a/src/test/compile-fail/trait-as-struct-constructor.rs b/src/test/compile-fail/trait-as-struct-constructor.rs
new file mode 100644
index 000000000000..a1fcab002e13
--- /dev/null
+++ b/src/test/compile-fail/trait-as-struct-constructor.rs
@@ -0,0 +1,17 @@
+// 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.
+
+trait TraitNotAStruct { }
+
+fn main() {
+    TraitNotAStruct{ value: 0 };
+    //~^ ERROR: use of trait `TraitNotAStruct` as a struct constructor [E0159]
+}
+