From 55174040f1aaf1311afa6cb28c28ad0b489b65d1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9C=80=E8=90=8C=E5=B0=8F=E6=B1=90?= <sumneko@hotmail.com>
Date: Wed, 15 Jan 2020 15:32:33 +0800
Subject: =?UTF-8?q?=E6=9B=B4=E6=96=B0luaparser?=
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---
 script-beta/parser/ast.lua | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'script-beta/parser')

diff --git a/script-beta/parser/ast.lua b/script-beta/parser/ast.lua
index 43335950..4227cb88 100644
--- a/script-beta/parser/ast.lua
+++ b/script-beta/parser/ast.lua
@@ -1615,7 +1615,12 @@ local Defs = {
             start = start,
             finish = finish - 1,
         }
-        return exp
+        -- 当exp为nil时，不能返回任何值，否则会产生带洞的actionlist
+        if exp then
+            return exp
+        else
+            return
+        end
     end,
     MissIf = function (start, block)
         PushError {
-- 
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