Method custom_load

compat/resource_loader_compat.cpp:228–272

thread_local HashSet<String> currently_loading_paths;
Ref<Resource> ResourceCompatLoader::custom_load(const String &p_path, const String &p_type_hint, ResourceInfo::LoadType p_type, Error *r_error, bool use_threads, ResourceFormatLoader::CacheMode p_cache_mode) {
	String local_path = _validate_local_path(p_path);
	String res_path = GDRESettings::get_singleton()->get_mapped_path(p_path);
	bool is_real_load = p_type == ResourceInfo::LoadType::REAL_LOAD || p_type == ResourceInfo::LoadType::GLTF_LOAD;
	if (p_cache_mode == ResourceFormatLoader::CACHE_MODE_REUSE) {
		auto res = ResourceCache::get_ref(local_path);
		if (res.is_valid()) {
			return res;
		}
	}
	ERR_FAIL_COND_V_MSG(currently_loading_paths.has(res_path), Ref<Resource>(), "Circular dependency detected: " + local_path);

	auto loader = get_loader_for_path(res_path, p_type_hint);
	if (loader.is_null() && is_real_load) {
		currently_loading_paths.insert(res_path);
		Ref<Resource> res = load_with_real_resource_loader(local_path, p_type_hint, r_error, use_threads, p_cache_mode);
		currently_loading_paths.erase(res_path);
		if (res.is_valid() && res->get_path() != local_path) {
			if (is_real_load && p_cache_mode != ResourceFormatLoader::CACHE_MODE_IGNORE_DEEP && p_cache_mode != ResourceFormatLoader::CACHE_MODE_IGNORE) {
				res->set_path(local_path, p_cache_mode == ResourceFormatLoader::CACHE_MODE_REPLACE || p_cache_mode == ResourceFormatLoader::CACHE_MODE_REPLACE_DEEP);
			} else {
				res->set_path_cache(local_path);
			}
		}
		return res;
	}
	FAIL_LOADER_NOT_FOUND(loader);

	if (!is_real_load) {
		local_path = "";
	}
	currently_loading_paths.insert(res_path);
	Ref<Resource> res = loader->custom_load(res_path, local_path, p_type, r_error, use_threads, p_cache_mode);
	currently_loading_paths.erase(res_path);
	if (res.is_valid()) {
		if (res->get_path().is_empty()) {
			if (is_real_load && p_cache_mode != ResourceFormatLoader::CACHE_MODE_IGNORE_DEEP && p_cache_mode != ResourceFormatLoader::CACHE_MODE_IGNORE) {
				res->set_path(local_path, p_cache_mode == ResourceFormatLoader::CACHE_MODE_REPLACE || p_cache_mode == ResourceFormatLoader::CACHE_MODE_REPLACE_DEEP);
			} else {
				res->set_path_cache(local_path);
			}
		}
	}
	return res;
}

Ref<Resource> ResourceCompatLoader::load_with_real_resource_loader(const String &p_path, const String &p_type_hint, Error *r_error, bool use_threads, ResourceFormatLoader::CacheMode p_cache_mode) {
	String local_path = _validate_local_path(p_path);