public override Promise <U> Then <U> (Func <T, Promise <U> > done, Func <Exception, Promise <U> > fail)
{
if (this.IsDisposed)
{
return(Promises.Disposed <U>());
}
var deferred = new Deferred <U>();
Done(t => {
try {
done(t)
.Done(u => deferred.Resolve(u))
.Fail(e => deferred.Reject(e))
.Disposed(() => deferred.Dispose());
}
catch (Exception e) {
deferred.Reject(e);
}
});
Fail(e => {
try {
fail(e)
.Done(u => deferred.Resolve(u))
.Fail(e2 => deferred.Reject(e2))
.Disposed(() => deferred.Dispose());
}
catch (Exception exceptionFromFail) {
deferred.Reject(exceptionFromFail);
}
});
Disposed(() => deferred.Dispose());
return(deferred);
}
public Promise <U> SelectWithCatch <U>(Func <T, U> selector) where U : class
{
var result = new Deferred <U>();
Done(t => {
try {
result.Resolve(selector(t));
}
catch (Exception e) {
result.Reject(e);
}
});
Fail(e => result.Reject(e));
Disposed(() => result.Dispose());
return(result);
}