when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String? type,
    2. String? dir,
    3. String? url,
    4. bool? rewriteHost,
    5. bool? insecure,
    6. String? content,
    7. Map<String, String>? headers,
    8. int? statusCode,
    )
)

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( String? type,  String? dir,  String? url,  bool? rewriteHost,  bool? insecure,  String? content,  Map<String, String>? headers,  int? statusCode)  $default,) {final _that = this;
switch (_that) {
case _Masquerade():
return $default(_that.type,_that.dir,_that.url,_that.rewriteHost,_that.insecure,_that.content,_that.headers,_that.statusCode);case _:
  throw StateError('Unexpected subclass');

}
}