Freeze the AST by removing a couple of unused @mut ~[T] from token_tree.

2013-11-27 17:48:58 +02:00
parent 17af6f7d0c
commit f09b7b0ecd
6 changed files with 25 additions and 14 deletions
--- a/src/libsyntax/fold.rs
+++ b/src/libsyntax/fold.rs
@@ -457,10 +457,10 @@ pub fn fold_tts<T:ast_fold>(tts: &[token_tree], fld: &T) -> ~[token_tree] {
        match *tt {
            tt_tok(span, ref tok) =>
            tt_tok(span,maybe_fold_ident(tok,fld)),
-            tt_delim(ref tts) => tt_delim(@mut fold_tts(**tts, fld)),
-            tt_seq(span, ref pattern, ref sep, is_optional) =>
+            tt_delim(tts) => tt_delim(@fold_tts(*tts, fld)),
+            tt_seq(span, pattern, ref sep, is_optional) =>
            tt_seq(span,
-                   @mut fold_tts(**pattern, fld),
+                   @fold_tts(*pattern, fld),
                   sep.as_ref().map(|tok|maybe_fold_ident(tok,fld)),
                   is_optional),
            tt_nonterminal(sp,ref ident) =>