1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/compile-fail/trace_macros-gate.rs b/src/test/compile-fail/trace_macros-gate.rs
new file mode 100644
index 00000000000..6473bcece91
--- /dev/null
+++ b/src/test/compile-fail/trace_macros-gate.rs
@@ -0,0 +1,30 @@
+// 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 that the trace_macros feature gate is on.
+
+fn main() {
+    trace_macros!(); //~ ERROR `trace_macros` is not stable
+    trace_macros!(1); //~ ERROR `trace_macros` is not stable
+    trace_macros!(ident); //~ ERROR `trace_macros` is not stable
+    trace_macros!(for); //~ ERROR `trace_macros` is not stable
+    trace_macros!(true,); //~ ERROR `trace_macros` is not stable
+    trace_macros!(false 1); //~ ERROR `trace_macros` is not stable
+
+    // Errors are signalled early for the above, before expansion.
+    // See trace_macros-gate2 and trace_macros-gate3. for examples
+    // of the below being caught.
+
+    macro_rules! expando {
+        ($x: ident) => { trace_macros!($x) }
+    }
+
+    expando!(true);
+}