content: import React from 'react';
  import warning from './routerWarning';
  import invariant from 'invariant';
  import { createRouteFromReactElement as _createRouteFromReactElement } from './RouteUtils';
  import { component, components, falsy } from './InternalPropTypes';
  
  var func = React.PropTypes.func;
  
  /**
   * An <IndexRoute> is used to specify its parent's <Route indexRoute> in
   * a JSX route config.
   */
  
  var IndexRoute = React.createClass({
    displayName: 'IndexRoute',
  
  
    statics: {
      createRouteFromReactElement: function createRouteFromReactElement(element, parentRoute) {
        /* istanbul ignore else: sanity check */
        if (parentRoute) {
          parentRoute.indexRoute = _createRouteFromReactElement(element);
        } else {
          process.env.NODE_ENV !== 'production' ? warning(false, 'An <IndexRoute> does not make sense at the root of your route config') : void 0;
        }
      }
    },
  
    propTypes: {
      path: falsy,
      component: component,
      components: components,
      getComponent: func,
      getComponents: func
    },
  
    /* istanbul ignore next: sanity check */
    render: function render() {
      !false ? process.env.NODE_ENV !== 'production' ? invariant(false, '<IndexRoute> elements are for router configuration only and should not be rendered') : invariant(false) : void 0;
    }
  });
  
  export default IndexRoute;