Abstractioning away main/winMain

[Alex Parrill via Digitalmars-d-learn]

On Saturday, 5 September 2015 at 02:29:05 UTC, Prudence wrote:
> If I use functions instead of delegates it works.
>
> I suppose the problem then is that the delegate can't create a 
> fat pointer when used in a static context. (i.e., why the 
> functions work)
>
> The question is, then, Can I construct a delegate manually and 
> supply my own context pointer?
>
> e.g.,
> class X { }
>
> void foo() { }
>
> constructDelegate(&foo, new X()) // Creates a void delegate() 
> with context X

How would the X instance get passed in?

You could try this:

class X {}
void foo(X x) {}

auto x = new X();
auto dg = () => foo(x);