diff --git a/binding_generator.py b/binding_generator.py
index e6807846..9c3284df 100644
--- a/binding_generator.py
+++ b/binding_generator.py
@@ -1556,13 +1556,13 @@ def generate_engine_class_source(class_api, used_classes, fully_used_classes, us
             f"\t\tGDExtensionObjectPtr singleton_obj = internal::gdextension_interface_global_get_singleton({class_name}::get_class_static()._native_ptr());"
         )
         result.append("#ifdef DEBUG_ENABLED")
-        result.append("\t\tERR_FAIL_COND_V(singleton_obj == nullptr, nullptr);")
+        result.append("\t\tERR_FAIL_NULL_V(singleton_obj, nullptr);")
         result.append("#endif // DEBUG_ENABLED")
         result.append(
             f"\t\tsingleton = reinterpret_cast<{class_name} *>(internal::gdextension_interface_object_get_instance_binding(singleton_obj, internal::token, &{class_name}::_gde_binding_callbacks));"
         )
         result.append("#ifdef DEBUG_ENABLED")
-        result.append("\t\tERR_FAIL_COND_V(singleton == nullptr, nullptr);")
+        result.append("\t\tERR_FAIL_NULL_V(singleton, nullptr);")
         result.append("#endif // DEBUG_ENABLED")
         result.append("\t}")
         result.append("\treturn singleton;")
diff --git a/include/godot_cpp/classes/ref.hpp b/include/godot_cpp/classes/ref.hpp
index f30928ac..f3fc3e94 100644
--- a/include/godot_cpp/classes/ref.hpp
+++ b/include/godot_cpp/classes/ref.hpp
@@ -63,7 +63,7 @@ class Ref {
 	}
 
 	void ref_pointer(T *p_ref) {
-		ERR_FAIL_COND(!p_ref);
+		ERR_FAIL_NULL(p_ref);
 
 		if (p_ref->init_ref()) {
 			reference = p_ref;
diff --git a/include/godot_cpp/core/class_db.hpp b/include/godot_cpp/core/class_db.hpp
index f23df067..930caa85 100644
--- a/include/godot_cpp/core/class_db.hpp
+++ b/include/godot_cpp/core/class_db.hpp
@@ -257,7 +257,7 @@ MethodBind *ClassDB::bind_static_method(StringName p_class, N p_method_name, M p
 template <class M>
 MethodBind *ClassDB::bind_vararg_method(uint32_t p_flags, StringName p_name, M p_method, const MethodInfo &p_info, const std::vector<Variant> &p_default_args, bool p_return_nil_is_variant) {
 	MethodBind *bind = create_vararg_method_bind(p_method, p_info, p_return_nil_is_variant);
-	ERR_FAIL_COND_V(!bind, nullptr);
+	ERR_FAIL_NULL_V(bind, nullptr);
 
 	bind->set_name(p_name);
 	bind->set_default_arguments(p_default_args);
diff --git a/include/godot_cpp/core/memory.hpp b/include/godot_cpp/core/memory.hpp
index dd4a155d..548f3301 100644
--- a/include/godot_cpp/core/memory.hpp
+++ b/include/godot_cpp/core/memory.hpp
@@ -146,7 +146,7 @@ T *memnew_arr_template(size_t p_elements, const char *p_descr = "") {
 	size_t len = sizeof(T) * p_elements;
 	uint64_t *mem = (uint64_t *)Memory::alloc_static(len, true);
 	T *failptr = nullptr; // Get rid of a warning.
-	ERR_FAIL_COND_V(!mem, failptr);
+	ERR_FAIL_NULL_V(mem, failptr);
 	*(mem - 1) = p_elements;
 
 	if (!std::is_trivially_destructible<T>::value) {
diff --git a/include/godot_cpp/templates/cowdata.hpp b/include/godot_cpp/templates/cowdata.hpp
index d3ea982b..121351b8 100644
--- a/include/godot_cpp/templates/cowdata.hpp
+++ b/include/godot_cpp/templates/cowdata.hpp
@@ -294,7 +294,7 @@ Error CowData<T>::resize(int p_size) {
 			if (current_size == 0) {
 				// alloc from scratch
 				uint32_t *ptr = (uint32_t *)Memory::alloc_static(alloc_size, true);
-				ERR_FAIL_COND_V(!ptr, ERR_OUT_OF_MEMORY);
+				ERR_FAIL_NULL_V(ptr, ERR_OUT_OF_MEMORY);
 				*(ptr - 1) = 0; // size, currently none
 				new (ptr - 2) SafeNumeric<uint32_t>(1); // refcount
 
@@ -302,7 +302,7 @@ Error CowData<T>::resize(int p_size) {
 
 			} else {
 				uint32_t *_ptrnew = (uint32_t *)Memory::realloc_static(_ptr, alloc_size, true);
-				ERR_FAIL_COND_V(!_ptrnew, ERR_OUT_OF_MEMORY);
+				ERR_FAIL_NULL_V(_ptrnew, ERR_OUT_OF_MEMORY);
 				new (_ptrnew - 2) SafeNumeric<uint32_t>(rc); // refcount
 
 				_ptr = (T *)(_ptrnew);
@@ -332,7 +332,7 @@ Error CowData<T>::resize(int p_size) {
 
 		if (alloc_size != current_alloc_size) {
 			uint32_t *_ptrnew = (uint32_t *)Memory::realloc_static(_ptr, alloc_size, true);
-			ERR_FAIL_COND_V(!_ptrnew, ERR_OUT_OF_MEMORY);
+			ERR_FAIL_NULL_V(_ptrnew, ERR_OUT_OF_MEMORY);
 			new (_ptrnew - 2) SafeNumeric<uint32_t>(rc); // refcount
 
 			_ptr = (T *)(_ptrnew);
diff --git a/include/godot_cpp/templates/list.hpp b/include/godot_cpp/templates/list.hpp
index 36285f8b..2c8a7c87 100644
--- a/include/godot_cpp/templates/list.hpp
+++ b/include/godot_cpp/templates/list.hpp
@@ -221,7 +221,7 @@ private:
 		int size_cache = 0;
 
 		bool erase(const Element *p_I) {
-			ERR_FAIL_COND_V(!p_I, false);
+			ERR_FAIL_NULL_V(p_I, false);
 			ERR_FAIL_COND_V(p_I->data != this, false);
 
 			if (first == p_I) {
diff --git a/include/godot_cpp/templates/rid_owner.hpp b/include/godot_cpp/templates/rid_owner.hpp
index 93a83567..005fc876 100644
--- a/include/godot_cpp/templates/rid_owner.hpp
+++ b/include/godot_cpp/templates/rid_owner.hpp
@@ -186,12 +186,12 @@ public:
 	}
 	void initialize_rid(RID p_rid) {
 		T *mem = get_or_null(p_rid, true);
-		ERR_FAIL_COND(!mem);
+		ERR_FAIL_NULL(mem);
 		memnew_placement(mem, T);
 	}
 	void initialize_rid(RID p_rid, const T &p_value) {
 		T *mem = get_or_null(p_rid, true);
-		ERR_FAIL_COND(!mem);
+		ERR_FAIL_NULL(mem);
 		memnew_placement(mem, T(p_value));
 	}
 
@@ -374,7 +374,7 @@ public:
 
 	_FORCE_INLINE_ void replace(const RID &p_rid, T *p_new_ptr) {
 		T **ptr = alloc.get_or_null(p_rid);
-		ERR_FAIL_COND(!ptr);
+		ERR_FAIL_NULL(ptr);
 		*ptr = p_new_ptr;
 	}
 
diff --git a/include/godot_cpp/templates/thread_work_pool.hpp b/include/godot_cpp/templates/thread_work_pool.hpp
index 85245b4f..a3efd42e 100644
--- a/include/godot_cpp/templates/thread_work_pool.hpp
+++ b/include/godot_cpp/templates/thread_work_pool.hpp
@@ -96,7 +96,7 @@ class ThreadWorkPool {
 public:
 	template <class C, class M, class U>
 	void begin_work(uint32_t p_elements, C *p_instance, M p_method, U p_userdata) {
-		ERR_FAIL_COND(!threads); // never initialized
+		ERR_FAIL_NULL(threads); // Never initialized.
 		ERR_FAIL_COND(current_work != nullptr);
 
 		index.store(0, std::memory_order_release);
@@ -123,18 +123,18 @@ public:
 	}
 
 	bool is_done_dispatching() const {
-		ERR_FAIL_COND_V(current_work == nullptr, true);
+		ERR_FAIL_NULL_V(current_work, true);
 		return index.load(std::memory_order_acquire) >= current_work->max_elements;
 	}
 
 	uint32_t get_work_index() const {
-		ERR_FAIL_COND_V(current_work == nullptr, 0);
+		ERR_FAIL_NULL_V(current_work, 0);
 		uint32_t idx = index.load(std::memory_order_acquire);
 		return Math::min(idx, current_work->max_elements);
 	}
 
 	void end_work() {
-		ERR_FAIL_COND(current_work == nullptr);
+		ERR_FAIL_NULL(current_work);
 		for (uint32_t i = 0; i < threads_working; i++) {
 			threads[i].completed.wait();
 			threads[i].work = nullptr;
diff --git a/src/core/class_db.cpp b/src/core/class_db.cpp
index 159c0314..76abd216 100644
--- a/src/core/class_db.cpp
+++ b/src/core/class_db.cpp
@@ -77,7 +77,7 @@ void ClassDB::add_property(const StringName &p_class, const PropertyInfo &p_pinf
 	if (p_setter != String("")) {
 		setter = get_method(p_class, p_setter);
 
-		ERR_FAIL_COND_MSG(!setter, String("Setter method '{0}::{1}()' not found for property '{2}::{3}'.").format(Array::make(p_class, p_setter, p_class, p_pinfo.name)));
+		ERR_FAIL_NULL_MSG(setter, String("Setter method '{0}::{1}()' not found for property '{2}::{3}'.").format(Array::make(p_class, p_setter, p_class, p_pinfo.name)));
 
 		size_t exp_args = 1 + (p_index >= 0 ? 1 : 0);
 		ERR_FAIL_COND_MSG((int)exp_args != setter->get_argument_count(), String("Setter method '{0}::{1}()' must take a single argument.").format(Array::make(p_class, p_setter)));
@@ -86,7 +86,7 @@ void ClassDB::add_property(const StringName &p_class, const PropertyInfo &p_pinf
 	ERR_FAIL_COND_MSG(p_getter == String(""), String("Getter method must be specified for '{0}::{1}'.").format(Array::make(p_class, p_pinfo.name)));
 
 	MethodBind *getter = get_method(p_class, p_getter);
-	ERR_FAIL_COND_MSG(!getter, String("Getter method '{0}::{1}()' not found for property '{2}::{3}'.").format(Array::make(p_class, p_getter, p_class, p_pinfo.name)));
+	ERR_FAIL_NULL_MSG(getter, String("Getter method '{0}::{1}()' not found for property '{2}::{3}'.").format(Array::make(p_class, p_getter, p_class, p_pinfo.name)));
 	{
 		size_t exp_args = 0 + (p_index >= 0 ? 1 : 0);
 		ERR_FAIL_COND_MSG((int)exp_args != getter->get_argument_count(), String("Getter method '{0}::{1}()' must not take any argument.").format(Array::make(p_class, p_getter)));
diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 17b06964..80e71ec5 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -42,7 +42,7 @@ void *Memory::alloc_static(size_t p_bytes, bool p_pad_align) {
 #endif
 
 	void *mem = internal::gdextension_interface_mem_alloc(p_bytes + (prepad ? PAD_ALIGN : 0));
-	ERR_FAIL_COND_V(!mem, nullptr);
+	ERR_FAIL_NULL_V(mem, nullptr);
 
 	if (prepad) {
 		uint8_t *s8 = (uint8_t *)mem;
@@ -71,7 +71,7 @@ void *Memory::realloc_static(void *p_memory, size_t p_bytes, bool p_pad_align) {
 	if (prepad) {
 		mem -= PAD_ALIGN;
 		mem = (uint8_t *)internal::gdextension_interface_mem_realloc(mem, p_bytes + PAD_ALIGN);
-		ERR_FAIL_COND_V(!mem, nullptr);
+		ERR_FAIL_NULL_V(mem, nullptr);
 		return mem + PAD_ALIGN;
 	} else {
 		return (uint8_t *)internal::gdextension_interface_mem_realloc(mem, p_bytes);
diff --git a/src/godot.cpp b/src/godot.cpp
index 69d471b2..06712213 100644
--- a/src/godot.cpp
+++ b/src/godot.cpp
@@ -411,7 +411,7 @@ GDExtensionBool GDExtensionBinding::init(GDExtensionInterfaceGetProcAddress p_ge
 	r_initialization->deinitialize = deinitialize_level;
 	r_initialization->minimum_initialization_level = minimum_initialization_level;
 
-	ERR_FAIL_COND_V_MSG(init_callback == nullptr, false, "Initialization callback must be defined.");
+	ERR_FAIL_NULL_V_MSG(init_callback, false, "Initialization callback must be defined.");
 
 	Variant::init_bindings();
 	register_engine_classes();