when<B> abstract method

B when<B>({
  1. required B data(
    1. A a
    ),
  2. required B error(
    1. dynamic error,
    2. StackTrace stackTrace
    ),
  3. required B loading(
    1. A? previousData
    ),
})

Implementation

B when<B>({
  required B Function(A a) data,
  required B Function(dynamic error, StackTrace stackTrace) error,
  required B Function(A? previousData) loading,
});