Start a best-effort warning cycle.

1 files changed, 22 insertions, 0 deletions

diff --git a/src/test/compile-fail/missing-semicolon-warning.rs b/src/test/compile-fail/missing-semicolon-warning.rs
new file mode 100644
index 00000000000..bbc958b87a5
--- /dev/null
+++ b/src/test/compile-fail/missing-semicolon-warning.rs
@@ -0,0 +1,22 @@
+// Copyright 2016 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(rustc_attrs)]
+#![allow(unused)]
+
+macro_rules! m {
+    ($($e1:expr),*; $($e2:expr),*) => {
+        $( let x = $e1 )*; //~ WARN expected `;`
+        $( println!("{}", $e2) )*; //~ WARN expected `;`
+    }
+}
+
+#[rustc_error]
+fn main() { m!(0, 0; 0, 0); } //~ ERROR compilation successful