when<T> method
AsyncPatternMatcher<I, O>
when<T>(
- TransformingPredicate<
I, Future< predicate,T> > - O function(
- T input
Implementation
AsyncPatternMatcher<I, O> when<T>(
TransformingPredicate<I, Future<T>> predicate,
O Function(T input) function) {
var newCases = List<_Case<I, Future<T>, Future<O>>>.from(_cases);
newCases.add(_Case(predicate, (Future<FutureOr<T>> i) async {
return function(await (await i));
}));
return AsyncPatternMatcher(newCases);
}