From a820fb9cd6441bf82963551716c185cf2e051af3 Mon Sep 17 00:00:00 2001
From: vimcaw <vimcaw@gmail.com>
Date: Wed, 27 Mar 2019 15:35:43 +0800
Subject: [PATCH] =?UTF-8?q?feat(taro):=20=E6=94=B9=E8=BF=9B=E4=BA=8B?=
 =?UTF-8?q?=E4=BB=B6=E5=A4=84=E7=90=86=E5=87=BD=E6=95=B0=E4=B8=8D=E5=AD=98?=
 =?UTF-8?q?=E5=9C=A8=E6=97=B6=E7=9A=84=E9=94=99=E8=AF=AF=E6=8F=90=E7=A4=BA?=
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---
 packages/taro-alipay/src/create-component.js | 6 +++++-
 packages/taro-swan/src/create-component.js   | 6 +++++-
 packages/taro-tt/src/create-component.js     | 6 +++++-
 packages/taro-weapp/src/create-component.js  | 6 +++++-
 4 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/packages/taro-alipay/src/create-component.js b/packages/taro-alipay/src/create-component.js
index c0b95e448ed4..aef5e061a225 100644
--- a/packages/taro-alipay/src/create-component.js
+++ b/packages/taro-alipay/src/create-component.js
@@ -127,7 +127,11 @@ function processEvent (eventHandlerName, obj) {
       }
       realArgs = [...datasetArgs, event]
     }
-    return scope[eventHandlerName].apply(callScope, realArgs)
+    if (scope[eventHandlerName]) {
+      return scope[eventHandlerName].apply(callScope, realArgs)
+    } else {
+      throw `事件处理函数${eventHandlerName}不存在`
+    }
   }
 }
 
diff --git a/packages/taro-swan/src/create-component.js b/packages/taro-swan/src/create-component.js
index 9a1ec81ea754..f3e7360659f9 100644
--- a/packages/taro-swan/src/create-component.js
+++ b/packages/taro-swan/src/create-component.js
@@ -144,7 +144,11 @@ function processEvent (eventHandlerName, obj) {
       }
       realArgs = [_scope, ...datasetArgs, ...detailArgs, event]
     }
-    return scope[eventHandlerName].apply(callScope, realArgs)
+    if (scope[eventHandlerName]) {
+      return scope[eventHandlerName].apply(callScope, realArgs)
+    } else {
+      throw `事件处理函数${eventHandlerName}不存在`
+    }
   }
 }
 
diff --git a/packages/taro-tt/src/create-component.js b/packages/taro-tt/src/create-component.js
index 5831e12c9637..fcdd6890c5b6 100644
--- a/packages/taro-tt/src/create-component.js
+++ b/packages/taro-tt/src/create-component.js
@@ -147,7 +147,11 @@ function processEvent (eventHandlerName, obj) {
       }
       realArgs = [_scope, ...datasetArgs, ...detailArgs, event]
     }
-    return scope[eventHandlerName].apply(callScope, realArgs)
+    if (scope[eventHandlerName]) {
+      return scope[eventHandlerName].apply(callScope, realArgs)
+    } else {
+      throw `事件处理函数${eventHandlerName}不存在`
+    }
   }
 }
 
diff --git a/packages/taro-weapp/src/create-component.js b/packages/taro-weapp/src/create-component.js
index b96c29bf66da..92d90cf93c7f 100644
--- a/packages/taro-weapp/src/create-component.js
+++ b/packages/taro-weapp/src/create-component.js
@@ -176,7 +176,11 @@ function processEvent (eventHandlerName, obj) {
       }
       realArgs = [_scope, ...datasetArgs, ...detailArgs, event]
     }
-    return scope[eventHandlerName].apply(callScope, realArgs)
+    if (scope[eventHandlerName]) {
+      return scope[eventHandlerName].apply(callScope, realArgs)
+    } else {
+      throw `事件处理函数${eventHandlerName}不存在`
+    }
   }
 }