From 577e0eb5400b1f65e71f38cce7f12d993d560f09 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9E=97=E7=86=A0?= <lianjie.lj@alibaba-inc.com>
Date: Tue, 18 Aug 2020 13:34:33 +0800
Subject: [PATCH] fix(react-renderer): fix hasLoop logic

---
 packages/react-renderer/src/engine/base.jsx | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/packages/react-renderer/src/engine/base.jsx b/packages/react-renderer/src/engine/base.jsx
index 0904cd99b..2641ddae3 100644
--- a/packages/react-renderer/src/engine/base.jsx
+++ b/packages/react-renderer/src/engine/base.jsx
@@ -234,15 +234,18 @@ export default class BaseEngine extends PureComponent {
       }
 
       if (schema.loop != null) {
-        return this.__createLoopVirtualDom(
-          {
-            ...schema,
-            loop: parseData(schema.loop, self),
-          },
-          self,
-          parentInfo,
-          idx,
-        );
+        const loop = parseData(schema.loop, self);
+        if (Array.isArray(loop) && loop.length > 0 || isJSExpression(loop)) {
+          return this.__createLoopVirtualDom(
+            {
+              ...schema,
+              loop,
+            },
+            self,
+            parentInfo,
+            idx,
+          );
+        }
       }
       const condition = schema.condition == null ? true : parseData(schema.condition, self);
       if (!condition) return null;