use_case library

Classes

UseCase<T>

The result of running a use case: either a UseCaseSuccess holding T, or a UseCaseFailure holding a UseCaseException.

UseCaseFailure<T>

A failed use case carrying a UseCaseException.

UseCaseSuccess<T>

A successful use case carrying a value of type T.

Functions

cast<T>(dynamic x) → T?

Casts x to T if it is of that type, otherwise returns null.

useCase<T>(Future<T> request()) → Future<UseCase<T>>

Executes the given async request and returns a UseCase with the result.

useCaseSync<T>(T request()) → UseCase<T>

Executes the given sync request and returns a UseCase with the result.

Exceptions / Errors

UnexpectedUseCaseException

Exception raised when an unexpected error escapes a useCase body.

UseCaseException

Base class for exceptions surfaced through a UseCase.