From a2c419bdc9db76666a9c9a7b6e50e6a0d1e33d55 Mon Sep 17 00:00:00 2001
From: Florian Kothmeier <floriankothmeier@web.de>
Date: Tue, 6 Oct 2020 23:22:25 +0200
Subject: [PATCH] Raise error if Resource is of wrong type as function argument

---
 core/variant/binder_common.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/core/variant/binder_common.h b/core/variant/binder_common.h
index 86bbf432660..830e0a5cbd5 100644
--- a/core/variant/binder_common.h
+++ b/core/variant/binder_common.h
@@ -122,6 +122,18 @@ struct VariantObjectClassChecker {
 	}
 };
 
+template <typename T>
+class Ref;
+
+template <typename T>
+struct VariantObjectClassChecker<const Ref<T> &> {
+	static _FORCE_INLINE_ bool check(const Variant &p_variant) {
+		Object *obj = p_variant;
+		const Ref<T> node = p_variant;
+		return node.ptr() || !obj;
+	}
+};
+
 template <>
 struct VariantObjectClassChecker<Node *> {
 	static _FORCE_INLINE_ bool check(const Variant &p_variant) {