safety check on empty datum LYN-2855

2021-04-20 17:33:34 -07:00
parent bfe192cce8
commit 4ae75a71d0
1 changed files with 7 additions and 1 deletions
@@ -208,7 +208,13 @@ namespace ScriptCanvas
            static const t_Value* Help(Datum& datum)
            {
                static_assert(!AZStd::is_pointer<t_Value>::value, "no pointer types in the Datum::GetAsHelper<t_Value, false>");
-                if (datum.m_type.GetType() == Data::eType::BehaviorContextObject)
+
+                if (datum.m_storage.empty())
+                {
+                    // rare, but can be caused by removals or problems with reflection to BehaviorContext, so must be checked
+                    return nullptr;
+                }
+                else if (datum.m_type.GetType() == Data::eType::BehaviorContextObject)
                {
                    return (*AZStd::any_cast<BehaviorContextObjectPtr>(&datum.m_storage))->CastConst<t_Value>();
                }