maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>(
  1. TResult $default(
    1. String url,
    2. String? alt,
    3. @JsonKey.new(name: 'aspect_ratio') String aspectRatio,
    4. bool loading,
    5. @JsonKey.new(name: 'on_tap_callback') OnTapCallback? onTapCallback,
    )?, {
  2. 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 url,  String? alt, @JsonKey(name: 'aspect_ratio')  String aspectRatio,  bool loading, @JsonKey(name: 'on_tap_callback')  OnTapCallback? onTapCallback)?  $default,{required TResult orElse(),}) {final _that = this;
switch (_that) {
case _RichImage() when $default != null:
return $default(_that.url,_that.alt,_that.aspectRatio,_that.loading,_that.onTapCallback);case _:
  return orElse();

}
}