syntax: Use `ast::MacArgs` for attributes

[rust.git] / src / libsyntax / visit.rs

diff --git a/src/libsyntax/visit.rs b/src/libsyntax/visit.rs
index f7b06c55a3a2eb9ee7851a11f91466075196ba0c..4ee09b4b87afac146575b0d9ee10bb7f4fda96a5 100644 (file)
--- a/src/libsyntax/visit.rs
+++ b/src/libsyntax/visit.rs
@@ -708,7 +708,7 @@ pub fn walk_expr<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a Expr) {
             visitor.visit_expr(left_expression);
             visitor.visit_expr(right_expression)
         }
-        ExprKind::AddrOf(_, ref subexpression) | ExprKind::Unary(_, ref subexpression) => {
+        ExprKind::AddrOf(_, _, ref subexpression) | ExprKind::Unary(_, ref subexpression) => {
             visitor.visit_expr(subexpression)
         }
         ExprKind::Cast(ref subexpression, ref typ) | ExprKind::Type(ref subexpression, ref typ) => {
@@ -841,11 +841,19 @@ pub fn walk_vis<'a, V: Visitor<'a>>(visitor: &mut V, vis: &'a Visibility) {
 
 pub fn walk_attribute<'a, V: Visitor<'a>>(visitor: &mut V, attr: &'a Attribute) {
     match attr.kind {
-        AttrKind::Normal(ref item) => visitor.visit_tts(item.tokens.clone()),
+        AttrKind::Normal(ref item) => walk_mac_args(visitor, &item.args),
         AttrKind::DocComment(_) => {}
     }
 }
 
+pub fn walk_mac_args<'a, V: Visitor<'a>>(visitor: &mut V, args: &'a MacArgs) {
+    match args {
+        MacArgs::Empty => {}
+        MacArgs::Delimited(_dspan, _delim, tokens) => visitor.visit_tts(tokens.clone()),
+        MacArgs::Eq(_eq_span, tokens) => visitor.visit_tts(tokens.clone()),
+    }
+}
+
 pub fn walk_tt<'a, V: Visitor<'a>>(visitor: &mut V, tt: TokenTree) {
     match tt {
         TokenTree::Token(token) => visitor.visit_token(token),