when<R> abstract method

R when<R>({
  1. required R loading(),
  2. required R data(
    1. T data
    ),
  3. required R error(
    1. Object error,
    2. StackTrace stackTrace
    ),
})

Implementation

R when<R>({
  required R Function() loading,
  required R Function(T data) data,
  required R Function(Object error, StackTrace stackTrace) error,
});