From 5fd95628cc8c0f2b014ab8897b3f29cf34eccb80 Mon Sep 17 00:00:00 2001
From: fxy060608 <fxy060608@gmail.com>
Date: Thu, 7 Apr 2022 16:20:59 +0800
Subject: [PATCH] fix(mp): fix edge case when slot is undefined (#3346)

---
 packages/uni-mp-vue/src/helpers/withScopedSlot.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/uni-mp-vue/src/helpers/withScopedSlot.ts b/packages/uni-mp-vue/src/helpers/withScopedSlot.ts
index dc3396f61..a9162f393 100644
--- a/packages/uni-mp-vue/src/helpers/withScopedSlot.ts
+++ b/packages/uni-mp-vue/src/helpers/withScopedSlot.ts
@@ -57,6 +57,10 @@ function createScopedSlotInvoker(instance: ComponentInternalInstance) {
     index?: number
   ) => {
     const slot = invoker.slots[slotName]
+    if (!slot) {
+      // slot 可能不存在 https://github.com/dcloudio/uni-app/issues/3346
+      return
+    }
     const hasIndex = typeof index !== 'undefined'
     index = index || 0
     // 确保当前 slot 的上下文，类似 withCtx
-- 
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