when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. List<HTTPAccount>? accounts,
    2. @JsonKey.new(name: 'allowTransparent') bool? transparent,
    3. int? userLevel
    )
)

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( List<HTTPAccount>? accounts, @JsonKey(name: 'allowTransparent')  bool? transparent,  int? userLevel)  $default,) {final _that = this;
switch (_that) {
case _HTTPServerConfig():
return $default(_that.accounts,_that.transparent,_that.userLevel);case _:
  throw StateError('Unexpected subclass');

}
}