From 253fe327ef168852af55fe6322fe215153acc8bf Mon Sep 17 00:00:00 2001
From: belliash <belliash@codingworkshop.eu.org>
Date: Sun, 31 Mar 2019 14:04:19 +0200
Subject: [PATCH] Automatically fallback mixed variable to void (NULL).

---
 engine/vm.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/engine/vm.c b/engine/vm.c
index 627ff7a..ad68062 100644
--- a/engine/vm.c
+++ b/engine/vm.c
@@ -2431,15 +2431,19 @@ static sxi32 VmByteCodeExec(
 							PH7_MemObjRelease(pTos);
 						} else {
 							pObj = VmExtractMemObj(&(*pVm), &sName, FALSE, TRUE);
-							if(pInstr->iP2 & MEMOBJ_HASHMAP) {
-								ph7_hashmap *pMap;
-								pMap = PH7_NewHashmap(&(*pVm), 0, 0);
-								if(pMap == 0) {
-									PH7_VmMemoryError(&(*pVm));
+							if(pInstr->iP2 & MEMOBJ_MIXED && (pInstr->iP2 & MEMOBJ_HASHMAP) == 0) {
+								pObj->iFlags = MEMOBJ_MIXED | MEMOBJ_VOID;
+							} else {
+								if(pInstr->iP2 & MEMOBJ_HASHMAP) {
+									ph7_hashmap *pMap;
+									pMap = PH7_NewHashmap(&(*pVm), 0, 0);
+									if(pMap == 0) {
+										PH7_VmMemoryError(&(*pVm));
+									}
+									pObj->x.pOther = pMap;
 								}
-								pObj->x.pOther = pMap;
+								MemObjSetType(pObj, pInstr->iP2);
 							}
-							MemObjSetType(pObj, pInstr->iP2);
 						}
 						pTos->nIdx = SXU32_HIGH; /* Mark as constant */
 						break;