string mixin and alias

[Andre Pany via Digitalmars-d-learn]

Hi,

is there a way to alias a string mixin?
Neither foo nor foo2 compiles.

import std.meta : Alias;
alias foo = (s) => Alias!(mixin(generateCode(s)));
alias foo2(string s) = Alias!(mixin(generateCode(s)));

string generateCode(string s){return "";}

void main()
{
  enum s = "a = 2 + 3; b = 4 + a;";
  foo(s);
  foo2(s);
}

Kind regards
André