Function init_autoloads

modules/gdscript/tests/gdscript_test_runner.cpp:59–119

namespace GDScriptTests {

void init_autoloads() {
	HashMap<StringName, ProjectSettings::AutoloadInfo> autoloads = ProjectSettings::get_singleton()->get_autoload_list();

	// First pass, add the constants so they exist before any script is loaded.
	for (const KeyValue<StringName, ProjectSettings::AutoloadInfo> &E : ProjectSettings::get_singleton()->get_autoload_list()) {
		const ProjectSettings::AutoloadInfo &info = E.value;

		if (info.is_singleton) {
			for (int i = 0; i < ScriptServer::get_language_count(); i++) {
				ScriptServer::get_language(i)->add_global_constant(info.name, Variant());
			}
		}
	}

	// Second pass, load into global constants.
	for (const KeyValue<StringName, ProjectSettings::AutoloadInfo> &E : ProjectSettings::get_singleton()->get_autoload_list()) {
		const ProjectSettings::AutoloadInfo &info = E.value;

		if (!info.is_singleton) {
			// Skip non-singletons since we don't have a scene tree here anyway.
			continue;
		}

		Node *n = nullptr;
		if (ResourceLoader::get_resource_type(info.path) == "PackedScene") {
			// Cache the scene reference before loading it (for cyclic references)
			Ref<PackedScene> scn;
			scn.instantiate();
			scn->set_path(info.path);
			scn->reload_from_file();
			ERR_CONTINUE_MSG(scn.is_null(), vformat("Failed to instantiate an autoload, can't load from path: %s.", info.path));

			if (scn.is_valid()) {
				n = scn->instantiate();
			}
		} else {
			Ref<Resource> res = ResourceLoader::load(info.path);
			ERR_CONTINUE_MSG(res.is_null(), vformat("Failed to instantiate an autoload, can't load from path: %s.", info.path));

			Ref<Script> scr = res;
			if (scr.is_valid()) {
				StringName ibt = scr->get_instance_base_type();
				bool valid_type = ClassDB::is_parent_class(ibt, "Node");
				ERR_CONTINUE_MSG(!valid_type, vformat("Failed to instantiate an autoload, script '%s' does not inherit from 'Node'.", info.path));

				Object *obj = ClassDB::instantiate(ibt);
				ERR_CONTINUE_MSG(!obj, vformat("Failed to instantiate an autoload, cannot instantiate '%s'.", ibt));

				n = Object::cast_to<Node>(obj);
				n->set_script(scr);
			}
		}

		ERR_CONTINUE_MSG(!n, vformat("Failed to instantiate an autoload, path is not pointing to a scene or a script: %s.", info.path));
		n->set_name(info.name);

		for (int i = 0; i < ScriptServer::get_language_count(); i++) {
			ScriptServer::get_language(i)->add_global_constant(info.name, n);