when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. int sizeBytes,
    2. String mimeType,
    3. String? name,
    4. int? durationMs,
    5. int? width,
    6. int? height,
    7. Map<String, dynamic>? $unknown,
    )
)

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( int sizeBytes,  String mimeType,  String? name,  int? durationMs,  int? width,  int? height,  Map<String, dynamic>? $unknown)  $default,) {final _that = this;
switch (_that) {
case _VideoStartUploadInput():
return $default(_that.sizeBytes,_that.mimeType,_that.name,_that.durationMs,_that.width,_that.height,_that.$unknown);case _:
  throw StateError('Unexpected subclass');

}
}