whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>({
  1. TResult? available(
    1. UiFieldsCompat value
    )?,
  2. TResult? notRequired(
    1. PrepareResponseNotRequiredCompat value
    )?,
})

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( UiFieldsCompat value)?  available,TResult? Function( PrepareResponseNotRequiredCompat value)?  notRequired,}) {final _that = this;
switch (_that) {
case PrepareDetailedResponseSuccessCompat_Available() when available != null:
return available(_that.value);case PrepareDetailedResponseSuccessCompat_NotRequired() when notRequired != null:
return notRequired(_that.value);case _:
  return null;

}
}