forwardRef.js

import React from 'react';
export default function forwardRef(renderFn, _temp) {
  var _ref = _temp === void 0 ? {} : _temp,
      propTypes = _ref.propTypes,
      defaultProps = _ref.defaultProps,
      _ref$allowFallback = _ref.allowFallback,
      allowFallback = _ref$allowFallback === void 0 ? false : _ref$allowFallback,
      _ref$displayName = _ref.displayName,
      displayName = _ref$displayName === void 0 ? renderFn.name || renderFn.displayName : _ref$displayName;

  var render = function render(props, ref) {
    return renderFn(props, ref);
  };

  return Object.assign(React.forwardRef || !allowFallback ? React.forwardRef(render) : function (props) {
    return render(props, null);
  }, {
    displayName: displayName,
    propTypes: propTypes,
    defaultProps: defaultProps
  });
}