maybeWhen<TResult extends Object?> method

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult $default(String $type, String uri, String? icon, String title, String? description, @EmbedExternalViewExternalSourceThemeConverter() EmbedExternalViewExternalSourceTheme? theme, Map<String, dynamic>? $unknown,)?, { 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( String $type,  String uri,  String? icon,  String title,  String? description, @EmbedExternalViewExternalSourceThemeConverter()  EmbedExternalViewExternalSourceTheme? theme,  Map<String, dynamic>? $unknown)?  $default,{required TResult orElse(),}) {final _that = this;
switch (_that) {
case _EmbedExternalViewExternalSource() when $default != null:
return $default(_that.$type,_that.uri,_that.icon,_that.title,_that.description,_that.theme,_that.$unknown);case _:
  return orElse();

}
}