Allow attributes to appear as macro arguments

Fixes #8393

1 files changed, 2 insertions, 0 deletions

diff --git a/src/libsyntax/ext/tt/macro_parser.rs b/src/libsyntax/ext/tt/macro_parser.rs
index 5a1317034b2..918949113ad 100644
--- a/src/libsyntax/ext/tt/macro_parser.rs
+++ b/src/libsyntax/ext/tt/macro_parser.rs
@@ -17,6 +17,7 @@ use codemap;
 use parse::lexer::*; //resolve bug?
 use parse::ParseSess;
 use parse::parser::Parser;
+use parse::attr::parser_attr;
 use parse::token::{Token, EOF, to_str, nonterminal, get_ident_interner, ident_to_str};
 use parse::token;
 
@@ -430,6 +431,7 @@ pub fn parse_nt(p: &Parser, name: &str) -> nonterminal {
                      + token::to_str(get_ident_interner(), p.token))
       },
       "path" => token::nt_path(p.parse_path_with_tps(false)),
+      "attr" => token::nt_attr(@p.parse_attribute(false)),
       "tt" => {
         *p.quote_depth += 1u; //but in theory, non-quoted tts might be useful
         let res = token::nt_tt(@p.parse_token_tree());