feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

frontend/packages/data/memory/variables/src/utils/traverse.ts

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+// eslint-disable-next-line max-params
+export function traverse<
+  T extends { [key in K]?: T[] },
+  K extends string = 'children',
+>(
+  nodeOrNodes: T | T[],
+  action: (node: T) => void,
+  traverseKey: K = 'children' as K,
+  maxDepth = Infinity,
+  currentDepth = 0,
+) {
+  const nodes = Array.isArray(nodeOrNodes) ? nodeOrNodes : [nodeOrNodes];
+  nodes.forEach(node => {
+    action(node);
+    if (currentDepth < maxDepth) {
+      const children = node[traverseKey] ?? [];
+      if (children?.length > 0) {
+        traverse(children, action, traverseKey, maxDepth, currentDepth + 1);
+      }
+    }
+  });
+}