Function enableSubTypeDefaulter

libs/echarts/echarts.simple.js:18672–18693

* @inner

(entity)

 * @inner
 */
function enableSubTypeDefaulter(entity) {

    var subTypeDefaulters = {};

    entity.registerSubTypeDefaulter = function (componentType, defaulter) {
        componentType = parseClassType$1(componentType);
        subTypeDefaulters[componentType.main] = defaulter;
    };

    entity.determineSubType = function (componentType, option) {
        var type = option.type;
        if (!type) {
            var componentTypeMain = parseClassType$1(componentType).main;
            if (entity.hasSubTypes(componentType) && subTypeDefaulters[componentTypeMain]) {
                type = subTypeDefaulters[componentTypeMain](option);
            }
        }
        return type;
    };

    return entity;
}

/**
 * Topological travel on Activity Network (Activity On Vertices).