diff options
Diffstat (limited to 'src/libsyntax/ext/tt/macro_parser.rs')
| -rw-r--r-- | src/libsyntax/ext/tt/macro_parser.rs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/libsyntax/ext/tt/macro_parser.rs b/src/libsyntax/ext/tt/macro_parser.rs index 0c1e619985d..46b09aca8b2 100644 --- a/src/libsyntax/ext/tt/macro_parser.rs +++ b/src/libsyntax/ext/tt/macro_parser.rs @@ -247,8 +247,8 @@ pub fn parse( let TokenAndSpan {tok: tok, sp: sp} = rdr.peek(); /* we append new items to this while we go */ - while cur_eis.len() > 0u { /* for each Earley Item */ - let mut ei = cur_eis.pop(); + while !cur_eis.is_empty() { /* for each Earley Item */ + let ei = cur_eis.pop(); let idx = ei.idx; let len = ei.elts.len(); |