Eliminating code duplication for static/nonstatic functions

[Andrei Alexandrescu]

On 9/20/13 8:52 AM, Simen Kjaeraas wrote:
>> I see no way to extract the scaffolding into a library.
>
> Like this?
>
>
> import std.stdio;
>
> mixin template maybeStatic(bool isStatic, alias funDef, args...) {
>      static if (isStatic) {
>          static mixin funDef!args;
>      } else {
>          mixin funDef!args;
>      }
> }
>
> struct A
> {
>      enum hasState = false;
>      private mixin template funDef()
>      {
>          void fun(int x) { writeln(x); }
>      }
>      mixin maybeStatic!(!hasState, funDef);
> }
>
> void main()
> {
>      A a;
>      a.fun(42);
> }
>

This is nice. Works with shared, too.

Andrei