From 798da237725a8b1292dfbcee6847bb297586eb44 Mon Sep 17 00:00:00 2001
From: Alexander Light <scialexlight@gmail.com>
Date: Sun, 30 Nov 2014 09:51:15 -0500
Subject: allow macro expansions in attributes

---
 src/libsyntax/parse/parser.rs | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/libsyntax/parse/parser.rs')

diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index 447f2a376e1..b9fd28ecfc8 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -1669,6 +1669,12 @@ impl<'a> Parser<'a> {
     /// Matches token_lit = LIT_INTEGER | ...
     pub fn lit_from_token(&mut self, tok: &token::Token) -> Lit_ {
         match *tok {
+            token::Interpolated(token::NtExpr(ref v)) => {
+                match v.node {
+                    ExprLit(ref lit) => { lit.node.clone() }
+                    _ => { self.unexpected_last(tok); }
+                }
+            }
             token::Literal(lit, suf) => {
                 let (suffix_illegal, out) = match lit {
                     token::Byte(i) => (true, LitByte(parse::byte_lit(i.as_str()).val0())),
-- 
cgit 1.4.1-3-g733a5