From e9f5a099dfcb42c7f2bb38974b57bbde7042ee9c Mon Sep 17 00:00:00 2001
From: Graydon Hoare <graydon@mozilla.com>
Date: Fri, 7 Sep 2012 16:58:27 -0700
Subject: Add an ignore! macro, remove support for nested block comments, re:
 #2755.

---
 src/libsyntax/ext/expand.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/libsyntax/ext')

diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index 984ac9fb0e3..4558d0a1872 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -243,6 +243,7 @@ fn new_span(cx: ext_ctxt, sp: span) -> span {
 fn core_macros() -> ~str {
     return
 ~"{
+    macro_rules! ignore (($($x:tt)*) => (()))
     #macro[[#error[f, ...], log(core::error, #fmt[f, ...])]];
     #macro[[#warn[f, ...], log(core::warn, #fmt[f, ...])]];
     #macro[[#info[f, ...], log(core::info, #fmt[f, ...])]];
-- 
cgit 1.4.1-3-g733a5