when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. bool isSuccess,
    2. String sign,
    3. String liveRate,
    4. String similarity,
    5. String? error,
    6. String? errorDomain,
    7. String? errorCode,
    8. String? errorDescription,
    9. String? errorReason,
    )
)

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( bool isSuccess,  String sign,  String liveRate,  String similarity,  String? error,  String? errorDomain,  String? errorCode,  String? errorDescription,  String? errorReason)  $default,) {final _that = this;
switch (_that) {
case _FaceVerifyResult():
return $default(_that.isSuccess,_that.sign,_that.liveRate,_that.similarity,_that.error,_that.errorDomain,_that.errorCode,_that.errorDescription,_that.errorReason);case _:
  throw StateError('Unexpected subclass');

}
}