• Brian White (11/11) Mar 17 2008 I want to create a module/global variable as the result of a template
• Jarrett Billingsley (24/29) Mar 17 2008 It should be.
• Brian White (3/13) Mar 19 2008 That makes sense and I got it to work just fine.

Brian White <bcwhite pobox.com> writes:

I want to create a module/global variable as the result of a template 
mixin.  However, this variable needs some sort of "static this" 
initialization.

Is this possible with a single mixin?  (i.e. declare the variable AND 
create a static initializer for it)

In C++, I'd do this with a global static instance of a class with a 
constructor that initializes the instance.  I can't seem to do this with 
D because only classes have constructors and they're always created via 
"new".

Thanks!

-- Brian

"Jarrett Billingsley" <kb3ctd2 yahoo.com> writes:

"Brian White" <bcwhite pobox.com> wrote in message 
news:frlpm6$3km$1 digitalmars.com...
I want to create a module/global variable as the result of a template 
mixin.  However, this variable needs some sort of "static this" 
initialization.

 Is this possible with a single mixin?  (i.e. declare the variable AND 
 create a static initializer for it)

It should be.

If you're using a template mixin:

template foo(T)
{
    T bar;
    static this()
    {
        bar = something();
    }
}

mixin foo!(int);

If you're using a string mixin:

template foo(T)
{
    const char[] foo =
    T.stringof ~ ` bar;
    static this()
    {
        bar = something();
    }`;
}

mixin(foo!(int));

Brian White <bcwhite pobox.com> writes:

 template foo(T)
 {
     T bar;
     static this()
     {
         bar = something();
     }
 }
 
 mixin foo!(int);

That makes sense and I got it to work just fine.

Thanks!

-- Brian