whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String userID,
    2. String projectSecretKey,
    3. String? welcomeMessage,
    4. String? allowedOrigins,
    5. String? name,
    6. String? fontFamily,
    7. String? color,
    8. Uint8List? avatar,
    9. String? systemInstructions,
    10. bool isPreviewMode,
    11. FabConfiguration fabConfiguration,
    )?
)

A variant of when that fallback to returning null

It is equivalent to doing:

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

Implementation

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String userID,  String projectSecretKey,  String? welcomeMessage,  String? allowedOrigins,  String? name,  String? fontFamily,  String? color, @unfreezed  Uint8List? avatar,  String? systemInstructions,  bool isPreviewMode,  FabConfiguration fabConfiguration)?  $default,) {final _that = this;
switch (_that) {
case _BotConfiguration() when $default != null:
return $default(_that.userID,_that.projectSecretKey,_that.welcomeMessage,_that.allowedOrigins,_that.name,_that.fontFamily,_that.color,_that.avatar,_that.systemInstructions,_that.isPreviewMode,_that.fabConfiguration);case _:
  return null;

}
}