From 5c86a1e6b5be9c1106756056ad0870c4bcc17d2e Mon Sep 17 00:00:00 2001
From: "alexey.lysiuk" <alexey.lysiuk@gmail.com>
Date: Thu, 4 Apr 2019 13:23:08 +0300
Subject: [PATCH] - fixed crash with push/insert to null dynarray when JIT is
 on

https://forum.zdoom.org/viewtopic.php?t=64148
---
 src/scripting/backend/dynarrays.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/scripting/backend/dynarrays.cpp b/src/scripting/backend/dynarrays.cpp
index b95e02f4d..d01a4557b 100644
--- a/src/scripting/backend/dynarrays.cpp
+++ b/src/scripting/backend/dynarrays.cpp
@@ -783,6 +783,7 @@ DEFINE_ACTION_FUNCTION_NATIVE(FDynArray_Obj, Find, ArrayFind<FDynArray_Obj COMMA
 
 int ObjArrayPush(FDynArray_Obj *self, DObject *obj)
 {
+    if (self == nullptr) NullParam("\"self\"");
 	GC::WriteBarrier(obj);
 	return self->Push(obj);
 }
@@ -811,6 +812,7 @@ DEFINE_ACTION_FUNCTION_NATIVE(FDynArray_Obj, Delete, ArrayDelete<FDynArray_Obj>)
 
 void ObjArrayInsert(FDynArray_Obj *self,int index, DObject *obj)
 {
+    if (self == nullptr) NullParam("\"self\"");
 	GC::WriteBarrier(obj);
 	self->Insert(index, obj);
 }