perf: 同步完整版代码

src/utils/tree.ts

@@ -117,3 +117,59 @@ export function appendFieldByUniqueId(
   }
   return menuTree;
 }
+
+/**
+ * 构造树型结构数据
+ * @param {*} data 数据源
+ * @param {*} id id字段 默认 'id'
+ * @param {*} parentId 父节点字段 默认 'parentId'
+ * @param {*} children 孩子节点字段 默认 'children'
+ */
+export function handleTree(
+  data,
+  id?: string,
+  parentId?: string,
+  children?: string
+) {
+  const config = {
+    id: id || "id",
+    parentId: parentId || "parentId",
+    childrenList: children || "children"
+  };
+
+  const childrenListMap = {};
+  const nodeIds = {};
+  const tree = [];
+
+  for (const d of data) {
+    const parentId = d[config.parentId];
+    if (childrenListMap[parentId] == null) {
+      childrenListMap[parentId] = [];
+    }
+    nodeIds[d[config.id]] = d;
+    childrenListMap[parentId].push(d);
+  }
+
+  for (const d of data) {
+    const parentId = d[config.parentId];
+    if (nodeIds[parentId] == null) {
+      tree.push(d);
+    }
+  }
+
+  for (const t of tree) {
+    adaptToChildrenList(t);
+  }
+
+  function adaptToChildrenList(o) {
+    if (childrenListMap[o[config.id]] !== null) {
+      o[config.childrenList] = childrenListMap[o[config.id]];
+    }
+    if (o[config.childrenList]) {
+      for (const c of o[config.childrenList]) {
+        adaptToChildrenList(c);
+      }
+    }
+  }
+  return tree;
+}