constructing module level immutable variables at runtime?

[Sönke Ludwig via Digitalmars-d]

Am 22.02.2016 um 07:55 schrieb Danni Coy via Digitalmars-d:
> I am trying to port a heavily multithreaded C++ application to D.
>
> I have a lot of variables that are set once from a config file at
> runtime and then never change.
> It seems that something like the following would be a very clean design.
>
> module config;
>
> static this()
> {
>      num_triggers = to!int(getValueFromConfigFile());
> }
>
> private:
> immutable(int) num_triggers = void;
>
> Is there any reason that allowing this would be a bad idea?
>

This actually works already, if you use "shared static this". "static 
this" is invoked for each thread that is started, thus it would 
overwrite the existing value of num_triggers, potentially multiple times.