Flutter InheritedWidget sharing static state

inherited_static.dart

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      home: MyHomePage(),
    );
  }
}

// InheritedWidget with unchanging state

class User {
  User(this.name);
  final String name;
}
var currentUser = User("Frodo Baggins");

class InheritedUser extends InheritedWidget {
  InheritedUser({Key key, @required this.user, @required Widget child})
      : super(key: key, child: child);

  final User user;

  @override
  bool updateShouldNotify(InheritedUser old) => user != old.user;
}

class MyHomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return InheritedUser(
      user: currentUser,
      child: Scaffold(
        appBar: AppBar(
          title: Builder(builder: (context) {
            final inherited = context.ancestorWidgetOfExactType(InheritedUser)
                as InheritedUser;
            return Text("Page for ${inherited.user.name}");
          }),
        ),
        body: MyWidget(),
      ),
    );
  }
}

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Center(
      child: Builder(builder: (context) {
        final inherited =
            context.ancestorWidgetOfExactType(InheritedUser) as InheritedUser;
        return Text(
          'User: ${inherited.user.name}',
          style: Theme.of(context).textTheme.display1,
        );
      }),
    );
  }
}