From c87e87365db76daadca6f5e23f036e71414684f7 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Thu, 8 Sep 2022 13:30:00 +0200
Subject: [PATCH] - fixed: all script methods adding an object to a dynamic
 array must perform a write barrier.

---
 src/common/scripting/core/dynarrays.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/common/scripting/core/dynarrays.cpp b/src/common/scripting/core/dynarrays.cpp
index 8c51daa9479..1d03fe3a724 100644
--- a/src/common/scripting/core/dynarrays.cpp
+++ b/src/common/scripting/core/dynarrays.cpp
@@ -846,6 +846,7 @@ DEFINE_ACTION_FUNCTION_NATIVE(FDynArray_Obj, Copy, ArrayCopy<FDynArray_Obj>)
 {
 	PARAM_SELF_STRUCT_PROLOGUE(FDynArray_Obj);
 	PARAM_POINTER(other, FDynArray_Obj);
+	for (auto& elem : *other) GC::WriteBarrier(elem);
 	*self = *other;
 	return 0;
 }
@@ -854,6 +855,7 @@ DEFINE_ACTION_FUNCTION_NATIVE(FDynArray_Obj, Move, ArrayMove<FDynArray_Obj>)
 {
 	PARAM_SELF_STRUCT_PROLOGUE(FDynArray_Obj);
 	PARAM_POINTER(other, FDynArray_Obj);
+	for (auto& elem : *other) GC::WriteBarrier(elem);
 	*self = std::move(*other);
 	return 0;
 }
@@ -862,6 +864,7 @@ DEFINE_ACTION_FUNCTION_NATIVE(FDynArray_Obj, Append, ArrayAppend<FDynArray_Obj>)
 {
 	PARAM_SELF_STRUCT_PROLOGUE(FDynArray_Obj);
 	PARAM_POINTER(other, FDynArray_Obj);
+	for (auto& elem : *other) GC::WriteBarrier(elem);
 	self->Append(*other);
 	return 0;
 }
@@ -883,6 +886,7 @@ DEFINE_ACTION_FUNCTION_NATIVE(FDynArray_Obj, Push, ObjArrayPush)
 {
 	PARAM_SELF_STRUCT_PROLOGUE(FDynArray_Obj);
 	PARAM_OBJECT(val, DObject);
+	GC::WriteBarrier(val);
 	ACTION_RETURN_INT(ObjArrayPush(self, val));
 }