import std.stdio, std.meta, std.traits, std.conv;

​

enum _MyEnum : int { a,b,c}

​

struct _Enum(T)

{

   T value;

   alias value this;

   static foreach(e, v; EnumMembers!T) mixin("static typeof(this) "~to!string(v)~" = cast(typeof(this))(T."~to!string(v)~");");

   static auto toString()

   {

       string s;

       static foreach(e, v; EnumMembers!T) mixin(" s ~= `"~to!string(v)~":"~to!string(e)~",`;");

       return s;

   }

}

​

alias _Enum!_MyEnum MyEnum;

​

void foo(MyEnum e)

{

   writeln(to!int(e));

}

void main()

{

    foo(MyEnum.a);

    foo(MyEnum.b);

    foo(MyEnum.c);

    MyEnum e = MyEnum.b;

    writeln(MyEnum.toString);

}