maybeMap<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeMap<TResult extends Object?>({
  1. TResult server(
    1. ServerFailure value
    )?,
  2. TResult cache(
    1. CacheFailure value
    )?,
  3. TResult unexpected(
    1. UnexpectedFailure value
    )?,
  4. required TResult orElse(),
})

A variant of map that fallback to returning orElse.

It is equivalent to doing:

switch (sealedClass) {
  case final Subclass value:
    return ...;
  case _:
    return orElse();
}

Implementation

@optionalTypeArgs TResult maybeMap<TResult extends Object?>({TResult Function( ServerFailure value)?  server,TResult Function( CacheFailure value)?  cache,TResult Function( UnexpectedFailure value)?  unexpected,required TResult orElse(),}){
final _that = this;
switch (_that) {
case ServerFailure() when server != null:
return server(_that);case CacheFailure() when cache != null:
return cache(_that);case UnexpectedFailure() when unexpected != null:
return unexpected(_that);case _:
  return orElse();

}
}