1 files changed, 10 insertions, 0 deletions
diff --git a/nfa/src/default/nfa.rs b/nfa/src/default/nfa.rs
index e38a1a9..42f7fd8 100644
--- a/nfa/src/default/nfa.rs
+++ b/nfa/src/default/nfa.rs
@@ -43,6 +43,11 @@ impl<T: GraphLabel> LabelGraph<T> for DefaultNFA<T> {
         Self: 'a,
         T: 'a;
 
+    type TupleIter<'a> = <DLGraph<T> as LabelGraph<T>>::TupleIter<'a>
+    where
+        Self: 'a,
+        T: 'a;
+
     #[inline]
     fn vertex_label(&self, node_id: usize) -> Result<Option<T>, GError> {
         if self.has_node(node_id) {
@@ -67,6 +72,11 @@ impl<T: GraphLabel> LabelGraph<T> for DefaultNFA<T> {
     }
 
     #[inline]
+    fn tuples_of(&self, node_id: usize) -> Result<Self::TupleIter<'_>, GError> {
+        self.graph.tuples_of(node_id)
+    }
+
+    #[inline]
     fn labels_of(&self, node_id: usize) -> Result<Self::LabelIter<'_>, GError> {
         self.graph.labels_of(node_id)
     }