Re: friends with phobos, workaround?

[Daniel N via Digitalmars-d-learn]

On Wednesday, 9 September 2015 at 23:44:14 UTC, Idan Arye wrote:
How about using a mixin 
template(http://dlang.org/template-mixin.html)?


Thanks, it's a good solution. My only reservation is I would 
prefer to find a way to directly invoke a symbol in std.* as 
otherwise different frameworks might invent their own 
conventions(well they might do that anyway). After a nights 
sleep, I actually found such a solution!

This opens the door to a new class of meta-programming; 
introspect the caller! :)

import std.typecons;

class Awesome1
{
private:
  int val;
  this(string caller = __MODULE__)(int val) if(caller == 
"std.conv") // Use scoped!Awesome
  {
        this.val = val;
  }
}

class Awesome2
{
private:
  int val;
  this(string caller = __MODULE__)(int val)
  {
  	static assert(caller == "std.conv", "Use 
scoped!Awesome(...)!");

        this.val = val;
  }
}

void main()
{
  static assert(__traits(compiles, scoped!Awesome1(1)));
  static assert(__traits(compiles, scoped!Awesome2(1)));
  static assert(!__traits(compiles, new Awesome1(1)));
  static assert(!__traits(compiles, new Awesome2(1)));
}