when2<T1, T2> method
AsyncPatternMatcher<I, O>
when2<T1, T2>(
- TransformingPredicate<
I, Future< predicate,Pair< >T1, T2> > - FutureOr<
O> function(- T1 input1,
- T2 input2
Implementation
AsyncPatternMatcher<I, O> when2<T1, T2>(
TransformingPredicate<I, Future<Pair<T1, T2>>> predicate,
FutureOr<O> Function(T1 input1, T2 input2) function) {
var newCases = List<_Case<I, Future<Pair<T1, T2>>, Future<O>>>.from(_cases);
newCases.add(_Case(predicate, (Future<FutureOr<Pair<T1, T2>>> p) async {
var p2 = await (await p);
return function(p2.a, p2.b);
}));
return AsyncPatternMatcher(newCases);
}