when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. PaymentElementLayoutType type,
    2. bool? defaultCollapsed,
    3. bool? radios,
    4. bool? spacedAccordionItems,
    5. int? visibleAccordionItemsCount,
    )
)

A switch-like method, using callbacks.

As opposed to map, this offers destructuring. It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case Subclass2(:final field2):
    return ...;
}

Implementation

@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( PaymentElementLayoutType type,  bool? defaultCollapsed,  bool? radios,  bool? spacedAccordionItems,  int? visibleAccordionItemsCount)  $default,) {final _that = this;
switch (_that) {
case _PaymentElementLayout():
return $default(_that.type,_that.defaultCollapsed,_that.radios,_that.spacedAccordionItems,_that.visibleAccordionItemsCount);case _:
  throw StateError('Unexpected subclass');

}
}