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| author | Kevin Atkinson <kevina@cs.utah.edu> | 2012-02-01 00:20:31 -0700 |
|---|---|---|
| committer | Kevin Atkinson <kevina@cs.utah.edu> | 2012-02-03 20:41:48 -0700 |
| commit | da74a7f9ca774cd8addcb00a361bb230facc3b31 (patch) | |
| tree | 56a6c60c5d6825a02e59c8934deba409334f70e0 /src/comp/syntax/visit.rs | |
| parent | 5ea04c65c151708272b92d00c8448156239affb2 (diff) | |
| download | rust-da74a7f9ca774cd8addcb00a361bb230facc3b31.tar.gz rust-da74a7f9ca774cd8addcb00a361bb230facc3b31.zip | |
Make macro arg optional in syntax, again untested.
Diffstat (limited to 'src/comp/syntax/visit.rs')
| -rw-r--r-- | src/comp/syntax/visit.rs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/comp/syntax/visit.rs b/src/comp/syntax/visit.rs index 0601e8285d4..50a4f2cfbfa 100644 --- a/src/comp/syntax/visit.rs +++ b/src/comp/syntax/visit.rs @@ -273,7 +273,8 @@ fn visit_exprs<E>(exprs: [@expr], e: E, v: vt<E>) { fn visit_mac<E>(m: mac, e: E, v: vt<E>) { alt m.node { - ast::mac_invoc(pth, arg, body) { visit_expr(arg, e, v); } + ast::mac_invoc(pth, arg, body) { + option::map(arg) {|arg| visit_expr(arg, e, v)}; } ast::mac_embed_type(ty) { v.visit_ty(ty, e, v); } ast::mac_embed_block(blk) { v.visit_block(blk, e, v); } ast::mac_ellipsis { } |