Method load

core/io/json.cpp:1570–1604

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Ref<Resource> ResourceFormatLoaderJSON::load(const String &p_path, const String &p_original_path, Error *r_error, bool p_use_sub_threads, float *r_progress, CacheMode p_cache_mode) {
	if (r_error) {
		*r_error = ERR_FILE_CANT_OPEN;
	}

	if (!FileAccess::exists(p_path)) {
		*r_error = ERR_FILE_NOT_FOUND;
		return Ref<Resource>();
	}

	Ref<JSON> json;
	json.instantiate();

	Error err = json->parse(FileAccess::get_file_as_string(p_path), Engine::get_singleton()->is_editor_hint());
	if (err != OK) {
		String err_text = "Error parsing JSON file at '" + p_path + "', on line " + itos(json->get_error_line()) + ": " + json->get_error_message();

		if (Engine::get_singleton()->is_editor_hint()) {
			// If running on editor, still allow opening the JSON so the code editor can edit it.
			WARN_PRINT(err_text);
		} else {
			if (r_error) {
				*r_error = err;
			}
			ERR_PRINT(err_text);
			return Ref<Resource>();
		}
	}

	if (r_error) {
		*r_error = OK;
	}

	return json;
}

void ResourceFormatLoaderJSON::get_recognized_extensions(List<String> *p_extensions) const {
	p_extensions->push_back("json");