swc_ecma_transforms_base 41.0.1

function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
        throw new TypeError("Super expression must either be null or a function");
    }
    subClass.prototype = Object.create(superClass && superClass.prototype, {
        constructor: { value: subClass, writable: true, configurable: true }
    });
    if (superClass) _set_prototype_of(subClass, superClass);
}