1 files changed, 45 insertions, 0 deletions
diff --git a/src/test/compile-fail/object-lifetime-default-from-box-error.rs b/src/test/compile-fail/object-lifetime-default-from-box-error.rs
new file mode 100644
index 00000000000..70752cbfda1
--- /dev/null
+++ b/src/test/compile-fail/object-lifetime-default-from-box-error.rs
@@ -0,0 +1,45 @@
+// Copyright 2015 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.
+
+// Test various cases where the defaults should lead to errors being
+// reported.
+
+#![allow(dead_code)]
+
+trait SomeTrait {
+    fn dummy(&self) { }
+}
+
+struct SomeStruct<'a> {
+    r: Box<SomeTrait+'a>
+}
+
+fn load(ss: &mut SomeStruct) -> Box<SomeTrait> {
+    // `Box<SomeTrait>` defaults to a `'static` bound, so this return
+    // is illegal.
+
+    ss.r //~ ERROR mismatched types
+}
+
+fn store(ss: &mut SomeStruct, b: Box<SomeTrait>) {
+    // No error: b is bounded by 'static which outlives the
+    // (anonymous) lifetime on the struct.
+
+    ss.r = b;
+}
+
+fn store1<'b>(ss: &mut SomeStruct, b: Box<SomeTrait+'b>) {
+    // Here we override the lifetimes explicitly, and so naturally we get an error.
+
+    ss.r = b; //~ ERROR mismatched types
+}
+
+fn main() {
+}