std.concurrency & immutable classes...

[Michel Fortin]

On 2011-02-06 16:55:36 -0500, Tomek Sowiński <just at ask.me> said:

> ... doesn't work.
> 
> class C {}
> thisTid.send(new immutable(C)());
> receive((immutable C) { writeln("got it!"); });
> 
> This throws: 
> core.exception.AssertError@/usr/include/d/dmd/phobos/std/variant.d(285): 
> immutable(C)
> 
> And when I go for Rebindable, I get "Aliases to mutable thread-local 
> data not allowed.".
> 
> Is there anything I can do?
> 
> Overall, I think that's another reason D needs native tail const badly. 
> Polymorphic classes are close to being second class citizens just as 
> soon const enters. :(

I just made this pull request today:
<https://github.com/D-Programming-Language/dmd/pull/>

If you want to test it, you're very welcome. Here is my development 
branch for this feature:
<https://github.com/michelf/dmd/tree/const-object-ref>

-- 
Michel Fortin
michel.fortin at michelf.com
http://michelf.com/