nextjs-router-source-example-7.tsx

// packages/next/client/with-router.tsx

// withRouter 코드
// https://github.com/vercel/next.js/blob/v12.3.4/packages/next/client/with-router.tsx#L19
import { useRouter } from './router'

export default function withRouter<
  P extends WithRouterProps,
  C extends BaseContext = NextPageContext
>(
  ComposedComponent: NextComponentType<C, any, P>
): React.ComponentType<ExcludeRouterProps<P>> {
  function WithRouterWrapper(props: any): JSX.Element {
    return <ComposedComponent router={useRouter()} {...props} />
  }
  // ...
  return WithRouterWrapper
}