From c86a261bca6176b0ca82319a102e0d8861a49903 Mon Sep 17 00:00:00 2001
From: tanjinzhou <415800467@qq.com>
Date: Fri, 6 Dec 2019 18:18:52 +0800
Subject: [PATCH] fix: tooltip throws exception in some cases #1519

---
 components/tooltip/Tooltip.jsx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/components/tooltip/Tooltip.jsx b/components/tooltip/Tooltip.jsx
index 0f050afe3..cdd076eed 100644
--- a/components/tooltip/Tooltip.jsx
+++ b/components/tooltip/Tooltip.jsx
@@ -82,7 +82,10 @@ export default {
         (isAntBtn &&
           (ele.componentOptions.propsData.disabled ||
             ele.componentOptions.propsData.disabled === '')) ||
-        (ele.tag === 'button' && ele.data && ele.data.attrs.disabled !== false)
+        (ele.tag === 'button' &&
+          ele.data &&
+          ele.data.attrs &&
+          ele.data.attrs.disabled !== undefined)
       ) {
         // Pick some layout related style properties up to span
         // Prevent layout bugs like https://github.com/ant-design/ant-design/issues/5254