Feature gate `#[static_assert]`.

The API this exposes is a little strange (being attached to `static`s),
so it makes sense to conservatively feature gate it. If it is highly
popular, it is possible to reverse this gating.

1 files changed, 14 insertions, 0 deletions

diff --git a/src/test/compile-fail/feature-gate-static-assert.rs b/src/test/compile-fail/feature-gate-static-assert.rs
new file mode 100644
index 00000000000..25740397d7a
--- /dev/null
+++ b/src/test/compile-fail/feature-gate-static-assert.rs
@@ -0,0 +1,14 @@
+// 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.
+
+#[static_assert] //~ ERROR `#[static_assert]` is an experimental feature
+static X: bool = true;
+
+fn main() {}