From 40a9d539048f7019cad389037056fec7fffb0eca Mon Sep 17 00:00:00 2001
From: York Yao <me@yorkyao.com>
Date: Wed, 7 Oct 2020 21:57:30 +0800
Subject: [PATCH] fix: vue3 slot

---
 packages/vue/src/index.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/vue/src/index.ts b/packages/vue/src/index.ts
index 5ec62d5..ee1394c 100644
--- a/packages/vue/src/index.ts
+++ b/packages/vue/src/index.ts
@@ -49,7 +49,8 @@ export const Node = defineComponent({
       }
     },
     nodeClassName(): string {
-      return common.getNodeClassName(this.data, this.last, !!this.$slots.default)
+      const hasChildren = typeof this.$slots.default === 'function' ? this.$slots.default().length > 0 : !!this.$slots.default
+      return common.getNodeClassName(this.data, this.last, hasChildren)
     },
     anchorClassName(): string {
       return common.getAnchorClassName(this.data, this.hovered, this.path)