From 484cd75b8c23b5d2e2345b43b5e21c9724760466 Mon Sep 17 00:00:00 2001
From: zhuxiujie <zhuxiujia@qq.com>
Date: Fri, 9 Apr 2021 10:45:06 +0800
Subject: [PATCH] fix when node

---
 ast/NodeChoose.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ast/NodeChoose.go b/ast/NodeChoose.go
index 0447e38..2a1aaab 100644
--- a/ast/NodeChoose.go
+++ b/ast/NodeChoose.go
@@ -21,7 +21,7 @@ func (it *NodeChoose) Eval(env map[string]interface{}, arg_array *[]interface{},
 		if e != nil {
 			return nil, e
 		}
-		if r != nil {
+		if v.Type() == NWhen && r != nil {
 			return r, nil
 		}
 	}