when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String description,
    2. Map<String, MediaType>? content,
    3. Map<String, Header>? headers,
    4. Map<String, Link>? links,
    5. @JsonKey.new(includeIfNull: false, includeFromJson: false, includeToJson: false) Map<String, dynamic>? extensions,
    )
)

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 description,  Map<String, MediaType>? content,  Map<String, Header>? headers,  Map<String, Link>? links, @JsonKey(includeIfNull: false, includeFromJson: false, includeToJson: false)  Map<String, dynamic>? extensions)  $default,) {final _that = this;
switch (_that) {
case _Response():
return $default(_that.description,_that.content,_that.headers,_that.links,_that.extensions);case _:
  throw StateError('Unexpected subclass');

}
}