maybeMap<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeMap<TResult extends Object?>({
  1. TResult initial(
    1. _Initial value
    )?,
  2. TResult unauthenticated(
    1. _Unauthenticated value
    )?,
  3. TResult authenticated(
    1. _Authenticated 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( _Initial value)?  initial,TResult Function( _Unauthenticated value)?  unauthenticated,TResult Function( _Authenticated value)?  authenticated,required TResult orElse(),}){
final _that = this;
switch (_that) {
case _Initial() when initial != null:
return initial(_that);case _Unauthenticated() when unauthenticated != null:
return unauthenticated(_that);case _Authenticated() when authenticated != null:
return authenticated(_that);case _:
  return orElse();

}
}