From 7cd5c5c256cbae63c3189f165333156205fe9b43 Mon Sep 17 00:00:00 2001
From: "zude.hzd" <zude.hzd@alibaba-inc.com>
Date: Thu, 12 Nov 2020 22:32:34 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20js=E7=BC=96=E8=BE=91=E5=99=A8=E7=A7=BB?=
 =?UTF-8?q?=E9=99=A4=E5=B0=BE=E9=80=97=E5=8F=B7?=
MIME-Version: 1.0
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---
 .../plugin-source-editor/src/transform.ts     | 27 ++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/packages/plugin-source-editor/src/transform.ts b/packages/plugin-source-editor/src/transform.ts
index 99e486925..1ee574452 100644
--- a/packages/plugin-source-editor/src/transform.ts
+++ b/packages/plugin-source-editor/src/transform.ts
@@ -24,7 +24,8 @@ const transfrom = {
     const stateStartStr = this.pickupStateStartStr(codeNew);
     if (stateStartStr != null) {
       startIndex = codeNew.indexOf(stateStartStr) + stateStartStr.length;
-      const stateBodyStr = this.pickupFunctionBody(codeNew, startIndex);
+      let stateBodyStr = this.pickupFunctionBody(codeNew, startIndex);
+      stateBodyStr = this.filterEndComma(stateBodyStr);
       const stateData = JSON.parse('{' + stateBodyStr);
       functionMap.state = stateData;
     }
@@ -78,6 +79,30 @@ const transfrom = {
     return functionMap;
   },
 
+  /**
+   * 过滤掉尾逗号
+   */
+  filterEndComma(str) {
+    let commaIndex = -1;
+    for (let i = str.length - 1; i > 0; i--) {
+      if (str[i] == ',') {
+        commaIndex = i;
+        break;
+      } else if (/^[a-zA-Z]+$/.test(str[i])) {
+        break;
+      }
+    }
+
+
+    if (commaIndex > 0) {
+      const newStr = str.substr(0, commaIndex) + str.substr(commaIndex + 1, str.length - 1);
+      return newStr;
+    }
+
+    return str;
+
+
+  },
 
   pickupFunctionName(codeStr) {
     // 函数名的正则表达式