when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>({
  1. required TResult resultAvailable(
    1. ResultAvailable data
    ),
  2. required TResult resultUnavailable(
    1. ResultUnavailable data
    ),
  3. required TResult unknown(
    1. Map<String, dynamic> data
    ),
})

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?>({required TResult Function( ResultAvailable data)  resultAvailable,required TResult Function( ResultUnavailable data)  resultUnavailable,required TResult Function( Map<String, dynamic> data)  unknown,}) {final _that = this;
switch (_that) {
case UTempCheckHandleAvailabilityResultResultAvailable():
return resultAvailable(_that.data);case UTempCheckHandleAvailabilityResultResultUnavailable():
return resultUnavailable(_that.data);case UTempCheckHandleAvailabilityResultUnknown():
return unknown(_that.data);}
}