implicit

Can I turn a method which takes an implicit parameter into a function? trait Tx def foo(bar: Any)(implicit tx: Tx) {} foo _ // error: could not find implicit value for parameter tx: Tx I am trying to achieve the following, preferably if I can somehow make it work with the plain call withSelection(deleteObjects) : trait Test { def atomic[A](fun: Tx => A): A def selection: Iterable[Any] def withSelection(fun: Iterable[Any] => Tx => Unit) { val sel = selection if (sel.nonEmpty) atomic { implicit tx => fun(sel)(tx) } } object deleteAction { def apply() { withSelection(deleteObjects) // ! } } def

When browsing ASP.NET MVC source code in codeplex , I found it is common to have a class explicitly implementing interface. The explicitly implemented method/property then invoke another "protected virtual" method/property with same name. For example, public class MvcHandler : IHttpHandler, IRequiresSessionState { protected virtual bool IsReusable { get { return false; } } bool IHttpHandler.IsReusable { get { return IsReusable; } } } I'm now sure what's the benefit of this kind of programming. For me, I prefer to just implicitly implement the interface IHttpHandler. I guess the author just don

Consider the following code: object foo { trait Bar[Q[_]] implicit object OptionBar extends Bar[Option] def test[T, C[_]](c: C[T])(implicit bar: Bar[C]) = () def main(args: Array[String]) { test(Some(42): Option[Int]) //??? } } This works, but I need to type the Some(42) as Option[Int], else the implicit object OptionBar won't be resolved (because a Bar[Some] is expected instead). Is there a way to avoid the explicit typing, so that I get the implicit OptionBar object in test even if I feed test with a Some or None? [Clarification] I used Option here just as example, it should also work if I

Find root of implicit function in Mathematica I have an implicit function, for example: f(x,y) = x^3 + x*y + y^2 - 36 I want to find the root, ie solutions to the equation f(x,y) = 0 Drawing the solution is easy: ContourPlot[x^3 + x*y + y^2 - 36 == 0, {x, -2 Pi, 2 Pi}, {y, -3 Pi, 3 Pi}] however I would like to have the data that is in the plot and not only the visual plot. So how do I find the data of the plot? tomd I'm not sure if I am interpreting your second question properly, but assuming you require a list of (x,y) points from the generated ContourPlot, one way of doing this might be the