From 8d2d659d6f0211945d5ab6c1eacbbdcc8bcb8f6a Mon Sep 17 00:00:00 2001
From: tangjinzhou <415800467@qq.com>
Date: Sun, 7 Jun 2020 09:24:44 +0800
Subject: [PATCH] fix: function default value

---
 components/_util/vue-types/utils.js | 4 +++-
 components/affix/index.jsx          | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/components/_util/vue-types/utils.js b/components/_util/vue-types/utils.js
index b56acec0c..d1e556d91 100644
--- a/components/_util/vue-types/utils.js
+++ b/components/_util/vue-types/utils.js
@@ -81,8 +81,10 @@ export const withDefault = function(type) {
         warn(`${this._vueTypes_name} - invalid default value: "${def}"`, def);
         return this;
       }
+
+      // isFunction(def) 关注 https://github.com/vuejs/vue-next/pull/1291 合并发版本后可删除
       this.default =
-        isArray(def) || isPlainObject(def)
+        isArray(def) || isPlainObject(def) || isFunction(def)
           ? function() {
               return def;
             }
diff --git a/components/affix/index.jsx b/components/affix/index.jsx
index 2cb4519b7..afb80a820 100644
--- a/components/affix/index.jsx
+++ b/components/affix/index.jsx
@@ -31,7 +31,7 @@ const AffixProps = {
   /** 固定状态改变时触发的回调函数 */
   // onChange?: (affixed?: boolean) => void;
   /** 设置 Affix 需要监听其滚动事件的元素，值为一个返回对应 DOM 元素的函数 */
-  target: PropTypes.func.def(() => getDefaultTarget),
+  target: PropTypes.func.def(getDefaultTarget),
   prefixCls: PropTypes.string,
 };
 const AffixStatus = {