maybeWhen<TResult extends Object?> method

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult $default(List<String>? chains, List<String> methods, List<String> events)?, { required TResult orElse(), })

A variant of when that fallback to an orElse callback.

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return orElse();
}

Implementation

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( List<String>? chains,  List<String> methods,  List<String> events)?  $default,{required TResult orElse(),}) {final _that = this;
switch (_that) {
case _RequiredNamespace() when $default != null:
return $default(_that.chains,_that.methods,_that.events);case _:
  return orElse();

}
}