Fix nested binding

NomicFoundation · Mar 24, 2024 · bb92384 · bb92384
1 parent 54f405a
commit bb92384
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diff --git a/crates/codegen/parser/treestuff/src/query/engine.rs b/crates/codegen/parser/treestuff/src/query/engine.rs
@@ -190,6 +190,7 @@ impl<T: ModuleInputs> Combinator<T> for BindingCombinator<T> {
             .entry(self.matcher.name.clone())
             .or_default()
             .push(self.cursor.clone());
+        self.child.accumulate_bindings(bindings);
     }
 }
 

diff --git a/crates/testlang/outputs/cargo/tests/src/query/engine_tests.rs b/crates/testlang/outputs/cargo/tests/src/query/engine_tests.rs
@@ -251,6 +251,17 @@ fn test_optional() {
     );
 }
 
+#[test]
+fn test_nested() {
+    run_query_test(
+        &common_test_tree(),
+        "@root [TreeNode ... @z [DelimitedIdentifier] [_] ]",
+        query_results! {
+            {root: ["ABCDE"], z: ["C"]}
+        },
+    );
+}
+
 // #[test]
 // fn test_query_and_apply_actions() {
 //     type Context = String;