Code block as template argument

[Виталий Фадеев]

On Tuesday, 11 February 2020 at 11:10:44 UTC, Виталий Фадеев 
wrote:
> I want template this code
>
>     if ( state & INIT && diraction = IN )
>     {
>       Label
>         text = "text"
>     }
>
>     if ( state & OPEN && diraction = OUT )
>     {
>       delete AppsWindow
>       state &= !OPEN
>     }
>
> to
>
>     TPL( INIT, IN,
>       {
>         Label
>           text = "text"
>       }
>     )
>
>
>     TPL( OPEN, OUT,
>       {
>         delete AppsWindow
>         state &= !OPEN
>       }
>     )
>
>
> Desctiption:
> condition: "if ( state & OPEN && diraction = OUT )"
> replace to template: "TPL( M, D )"
> pass code block as argument.
>
> Analog C-code with macros:
>     #define TPL(M,D,CODE) if ( state & OPEN && diraction = OUT 
> ) CODE;
> example code
>     TPL( OPEN, OUT,
>       {
>         delete AppsWindow
>         state &= !OPEN
>       }
>     )
>
> It possible in D ?
> How pass code block to template ?
> How to solve this problem ?

Version 2 of question. more accurate.

I want template this code

     if ( state & INIT && diraction = IN )
     {
       Label
         text = "text"
     }

     if ( state & OPEN && diraction = OUT )
     {
       delete AppsWindow
       state &= !OPEN
     }

to

     TPL( INIT, IN,
       {
         Label
           text = "text"
       }
     )


     TPL( OPEN, OUT,
       {
         delete AppsWindow
         state &= !OPEN
       }
     )


Desctiption:
condition: "if ( state & OPEN && diraction = OUT )"
replace to template: "TPL( M, D, CODE )"
pass code block as argument.

Analog C-code with macros:
     #define TPL(M,D,CODE) if ( state & M && diraction = D ) CODE;
example code
     TPL( OPEN, OUT,
       {
         delete AppsWindow
         state &= !OPEN
       }
     )

It possible in D ?
How pass code block to template ?
How to solve this problem ?