Function normalizeRegister

libs/echarts/echarts-en.simple.js:29403–29426

* @param {Object|Function} fn: {seriesType, createOnAllSeries, performRawSeries, reset}

(targetList, priority, fn, defaultPriority, visualType)

 * @param {Object|Function} fn: {seriesType, createOnAllSeries, performRawSeries, reset}
 */
function normalizeRegister(targetList, priority, fn, defaultPriority, visualType) {
    if (isFunction(priority) || isObject(priority)) {
        fn = priority;
        priority = defaultPriority;
    }

    if (__DEV__) {
        if (isNaN(priority) || priority == null) {
            throw new Error('Illegal priority');
        }
        // Check duplicate
        each(targetList, function (wrap) {
            assert(wrap.__raw !== fn);
        });
    }

    var stageHandler = Scheduler.wrapStageHandler(fn, visualType);

    stageHandler.__prio = priority;
    stageHandler.__raw = fn;
    targetList.push(stageHandler);

    return stageHandler;
}

/**
 * @param {string} name