From 69c27546ee37ac2d0384748a21c7dad00642a223 Mon Sep 17 00:00:00 2001
From: John Clements <clements@racket-lang.org>
Date: Mon, 7 Jul 2014 17:43:09 -0700
Subject: [PATCH] macro literals should be compared by name only

---
 src/libsyntax/ext/expand.rs          | 8 ++++++++
 src/libsyntax/ext/tt/macro_parser.rs | 3 +--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index f51002f734cd4..d5a9f34dcb922 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -1325,6 +1325,14 @@ mod test {
             "macro_rules! m((a)=>(13)) fn main(){m!(a);}".to_string());
     }
 
+    // should be able to use a bound identifier as a literal in a macro definition:
+    #[test] fn self_macro_parsing(){
+        expand_crate_str(
+            "macro_rules! foo ((zz) => (287u;))
+            fn f(zz : int) {foo!(zz);}".to_string()
+            );
+    }
+
     // renaming tests expand a crate and then check that the bindings match
     // the right varrefs. The specification of the test case includes the
     // text of the crate, and also an array of arrays.  Each element in the
diff --git a/src/libsyntax/ext/tt/macro_parser.rs b/src/libsyntax/ext/tt/macro_parser.rs
index 913e0427bda22..b30ede70f0e4b 100644
--- a/src/libsyntax/ext/tt/macro_parser.rs
+++ b/src/libsyntax/ext/tt/macro_parser.rs
@@ -354,8 +354,7 @@ pub fn parse(sess: &ParseSess,
                   MatchNonterminal(_,_,_) => { bb_eis.push(ei) }
                   MatchTok(ref t) => {
                     let mut ei_t = ei.clone();
-                    //if (token_name_eq(t,&tok)) {
-                    if token::mtwt_token_eq(t,&tok) {
+                    if token_name_eq(t,&tok) {
                         ei_t.idx += 1;
                         next_eis.push(ei_t);
                     }