Possible way to achieve lazy loading with const objects

[Steven Schveighoffer]

On Sat, 24 Sep 2011 07:19:33 -0400, Peter Alexander  
<peter.alexander.au at gmail.com> wrote:

> I'm happy to not have logical const in D provided that the Object  
> interface (and other similar interfaces) don't require that opEquals is  
> const or any nonsense like that. const means physical const, and  
> opEquals should not require physical const.
>
> IMO const/immutable should *only* be used when you need to pass things  
> between threads i.e. when you *really do* need physical const. If people  
> start using const like you would in C++ then every interface just  
> becomes unnecessarily restrictive.

FYI, this is a bug, not a feature.

http://d.puremagic.com/issues/show_bug.cgi?id=1824

It *will* be fixed eventually.  The fact that opEquals is not const is a  
huge problem.

-Steve