From e48188b42931b34dbc753b47aca3b5f198e9eac6 Mon Sep 17 00:00:00 2001
From: melex750 <melex750@users.noreply.github.com>
Date: Sat, 6 Aug 2016 04:56:57 -0400
Subject: [PATCH] Fix failed assert when literal null is returned

---
 src/CBot/CBotInstr/CBotExprRetVar.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/CBot/CBotInstr/CBotExprRetVar.cpp b/src/CBot/CBotInstr/CBotExprRetVar.cpp
index 28b0fa83..223058eb 100644
--- a/src/CBot/CBotInstr/CBotExprRetVar.cpp
+++ b/src/CBot/CBotInstr/CBotExprRetVar.cpp
@@ -135,9 +135,14 @@ bool CBotExprRetVar::Execute(CBotStack* &pj)
     {
         pVar = pj->GetVar();
         pVar->Update(pj->GetUserPtr());
+        if (pVar->GetType(CBotVar::GetTypeMode::CLASS_AS_POINTER) == CBotTypNullPointer)
+        {
+            pile1->SetError(CBotErrNull, &m_token);
+            return pj->Return(pile1);
+        }
 
         if ( !m_next3->ExecuteVar(pVar, pile, &m_token, true, false) )
-                return false;
+            return false;
 
         if (pVar)
             pile1->SetCopyVar(pVar);