getRegistry method Null safety

ComponentRegistry getRegistry()

Implementation

ComponentRegistry getRegistry() {
  var widget = dependOnInheritedWidgetOfExactType<InheritedRegistry>();
  if (widget == null) {
    throw FlutterError(
      'You cannot find a componentRegistry in your context '
      'if none were ever provided',
    );
  }
  return widget.componentRegistry;
}