Bison grammar: support parsing default trait impls

rust-lang · Mar 1, 2015 · e93b2ab · e93b2ab
1 parent 1576142
commit e93b2ab
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/grammar/parser-lalr.y b/src/grammar/parser-lalr.y
@@ -582,6 +582,14 @@ item_impl
 {
   $$ = mk_node("ItemImplNeg", 7, $1, $3, $5, $7, $8, $10, $11);
 }
+| maybe_unsafe IMPL generic_params trait_ref FOR DOTDOT '{' '}'
+{
+  $$ = mk_node("ItemImplDefault", 3, $1, $3, $4);
+}
+| maybe_unsafe IMPL generic_params '!' trait_ref FOR DOTDOT '{' '}'
+{
+  $$ = mk_node("ItemImplDefaultNeg", 3, $1, $3, $4);
+}
 ;
 
 maybe_impl_items