Re: 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