On Mon, Jun 27, 2016 at 08:13:21PM -0700, H. S. Teoh via Digitalmars-d-learn
wrote:
> On Tue, Jun 28, 2016 at 01:41:03AM +0000, Smoke Adams via Digitalmars-d-learn
> wrote:
> > I have a type
> >
> > public class SuperFunction(T)
> > {
> > T t;
> > return(T) Do() { return t(); }
> > }
> >
> > where T is a delegate or function. First, I would like to be able to
> > specify that this must be the case for SuperFunction so we can't pass
> > non-function/delegates for T.
[...]
> Maybe this?
>
> import std.traits : ReturnType, Parameters;
>
> ReturnType!T Do(Parameters!T args) { return t(args); }
[...]
Actually, we can do even better by using opCall:
ReturnType!T opCall(Parameters!T args) { return t(args); }
Then you can call the object directly:
auto sf = new SuperFunction!someFunc;
auto ret = sf(x, y, z);
T
--
Кто везде - тот нигде.
