---

yaml
---
r: 47465
b: refs/heads/try
c: e94465c
h: refs/heads/master
i:
  47463: d0d24c8
v: v3

Author: bors

[refs]

@@ -2,7 +2,7 @@
 refs/heads/master: 3bbcac322669cff3abde5be937cc4ec3860f3985
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: a6d9689399d091c3265f00434a69c551a61c28dc
-refs/heads/try: afd6196d7b87401d20dc5149c6955e2c9758657f
+refs/heads/try: e94465c053b06a5e4e0394812a12f4f6e027a98e
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
 refs/heads/try2: 147ecfdd8221e4a4d4e090486829a06da1e0ca3c

branches/try/src/libsyntax/ext/expand.rs

@@ -37,10 +37,14 @@ pub fn expand_expr(extsbox: @mut SyntaxEnv,
         // entry-point for all syntax extensions.
         expr_mac(ref mac) => {
             match (*mac).node {
-                // Token-tree macros, these will be the only case when we're
-                // finished transitioning.
+                // Token-tree macros:
                 mac_invoc_tt(pth, ref tts) => {
-                    assert (vec::len(pth.idents) == 1u);
+                    if (pth.idents.len() > 1u) {
+                        cx.span_fatal(
+                            pth.span,
+                            fmt!("expected macro name without module \
+                                  separators"));
+                    }
                     /* using idents and token::special_idents would make the
                     the macro names be hygienic */
                     let extname = cx.parse_sess().interner.get(pth.idents[0]);
@@ -319,8 +323,12 @@ pub fn expand_stmt(extsbox: @mut SyntaxEnv,
         }
         _ => return orig(s, sp, fld)
     };
-
-    assert(vec::len(pth.idents) == 1u);
+    if (pth.idents.len() > 1u) {
+        cx.span_fatal(
+            pth.span,
+            fmt!("expected macro name without module \
+                  separators"));
+    }
     let extname = cx.parse_sess().interner.get(pth.idents[0]);
     let (fully_expanded, sp) = match (*extsbox).find(&extname) {
         None =>

branches/try/src/test/compile-fail/macro-with-seps-err-msg.rs

@@ -0,0 +1,17 @@
+// Copyright 2012 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.
+
+// error-pattern:expected macro name without module separators
+
+fn main() {
+    globnar::brotz!();
+}
+
+