public IPromise <U> Then <U>(Func <T, IPromise <U> > onResolved, Func <Exception, IPromise <U> > onRejected)
{
if (CurrentState == PromiseState.Resolved)
{
return(onResolved(resolveValue));
}
else if (CurrentState == PromiseState.Rejected)
{
return(Promise.Rejected <U>(rejectException));
}
var resultPromise = new Promise <U>();
if (onResolved != null)
{
void resolveAction(T _)
{
var promise = onResolved(resolveValue);
promise.Then(resultPromise.Resolve);
promise.Catch(resultPromise.Reject);
}
resolveActions.Add(new ResolveAction <T> {
action = resolveAction, rejectable = resultPromise
});
}
Action <Exception> rejectAction;
if (onRejected != null)
{
rejectAction = (e) =>
{
var promise = onRejected(e);
promise.Then(resultPromise.Resolve);
promise.Catch(resultPromise.Reject);
};
}
else
{
rejectAction = resultPromise.Reject;
}
rejectActions.Add(new RejectAction {
action = rejectAction, rejectable = resultPromise
});
return(resultPromise);
}
public IPromise Then(Func <IPromise> onResolved, Action <Exception> onRejected)
{
if (CurrentState == PromiseState.Resolved)
{
return(onResolved());
}
else if (CurrentState == PromiseState.Rejected)
{
return(Promise.Rejected(rejectException));
}
var resultPromise = new Promise();
if (onResolved != null)
{
void resolveAction()
{
var promise = onResolved();
promise.Then(resultPromise.Resolve);
promise.Catch(resultPromise.Reject);
}
resolveActions.Add(new ResolveAction {
action = resolveAction, rejectable = resultPromise
});
}
Action <Exception> rejectAction;
if (onRejected != null)
{
rejectAction = (e) =>
{
onRejected(e);
resultPromise.Reject(e);
};
}
else
{
rejectAction = resultPromise.Reject;
}
rejectActions.Add(new RejectAction {
action = rejectAction, rejectable = resultPromise
});
return(resultPromise);
}