1 files changed, 72 insertions, 4 deletions

diff --git a/core/variant.h b/core/variant.h
index b1be95de12..c126540001 100644
--- a/core/variant.h
+++ b/core/variant.h
@@ -136,6 +136,65 @@ private:
 		Object *obj;
 	};
 
+	/* array helpers */
+	struct PackedArrayRefBase {
+		SafeRefCount refcount;
+		_FORCE_INLINE_ PackedArrayRefBase *reference() {
+			if (this->refcount.ref()) {
+				return this;
+			} else {
+				return nullptr;
+			}
+		}
+		static _FORCE_INLINE_ PackedArrayRefBase *reference_from(PackedArrayRefBase *p_base, PackedArrayRefBase *p_from) {
+			if (p_base == p_from) {
+				return p_base; //same thing, do nothing
+			}
+
+			if (p_from->reference()) {
+				if (p_base->refcount.unref()) {
+					memdelete(p_base);
+				}
+				return p_from;
+			} else {
+				return p_base; //keep, could not reference new
+			}
+		}
+		static _FORCE_INLINE_ void destroy(PackedArrayRefBase *p_array) {
+			if (p_array->refcount.unref()) {
+				memdelete(p_array);
+			}
+		}
+		_FORCE_INLINE_ virtual ~PackedArrayRefBase() {} //needs virtual destructor, but make inline
+	};
+
+	template <class T>
+	struct PackedArrayRef : public PackedArrayRefBase {
+		Vector<T> array;
+		static _FORCE_INLINE_ PackedArrayRef<T> *create() {
+			return memnew(PackedArrayRef<T>);
+		}
+		static _FORCE_INLINE_ PackedArrayRef<T> *create(const Vector<T> &p_from) {
+			return memnew(PackedArrayRef<T>(p_from));
+		}
+
+		static _FORCE_INLINE_ const Vector<T> &get_array(PackedArrayRefBase *p_base) {
+			return static_cast<PackedArrayRef<T> *>(p_base)->array;
+		}
+		static _FORCE_INLINE_ Vector<T> *get_array_ptr(const PackedArrayRefBase *p_base) {
+			return &const_cast<PackedArrayRef<T> *>(static_cast<const PackedArrayRef<T> *>(p_base))->array;
+		}
+
+		_FORCE_INLINE_ PackedArrayRef(const Vector<T> &p_from) {
+			array = p_from;
+			refcount.init();
+		}
+		_FORCE_INLINE_ PackedArrayRef() {
+			refcount.init();
+		}
+	};
+
+	/* end of array helpers */
 	_ALWAYS_INLINE_ ObjData &_get_obj();
 	_ALWAYS_INLINE_ const ObjData &_get_obj() const;
 
@@ -147,6 +206,7 @@ private:
 		::AABB *_aabb;
 		Basis *_basis;
 		Transform *_transform;
+		PackedArrayRefBase *packed_array;
 		void *_ptr; //generic pointer
 		uint8_t _mem[sizeof(ObjData) > (sizeof(real_t) * 4) ? sizeof(ObjData) : (sizeof(real_t) * 4)];
 	} _data GCC_ALIGNED_8;
@@ -155,14 +215,20 @@ private:
 	void clear();
 
 public:
-	_FORCE_INLINE_ Type get_type() const { return type; }
+	_FORCE_INLINE_ Type get_type() const {
+		return type;
+	}
 	static String get_type_name(Variant::Type p_type);
 	static bool can_convert(Type p_type_from, Type p_type_to);
 	static bool can_convert_strict(Type p_type_from, Type p_type_to);
 
 	bool is_ref() const;
-	_FORCE_INLINE_ bool is_num() const { return type == INT || type == REAL; };
-	_FORCE_INLINE_ bool is_array() const { return type >= ARRAY; };
+	_FORCE_INLINE_ bool is_num() const {
+		return type == INT || type == REAL;
+	};
+	_FORCE_INLINE_ bool is_array() const {
+		return type >= ARRAY;
+	};
 	bool is_shared() const;
 	bool is_zero() const;
 	bool is_one() const;
@@ -405,7 +471,9 @@ public:
 
 	void operator=(const Variant &p_variant); // only this is enough for all the other types
 	Variant(const Variant &p_variant);
-	_FORCE_INLINE_ Variant() { type = NIL; }
+	_FORCE_INLINE_ Variant() {
+		type = NIL;
+	}
 	_FORCE_INLINE_ ~Variant() {
 		if (type != Variant::NIL) clear();
 	}