State of Play

[Walter Bright]

Steven Schveighoffer wrote:
> what needs to be done:
> 
> 1. Make Tango build on top of druntime.  I just merged from trunk 
> yesterday, which was about 300 files, so most likely there will be 
> compile issues ;)
> 2. Const-ify everything.  Some parts are already done.
> 3. Make all opApply's scoped properly.
> 
> Not sure what happens after that, but step 2 alone is a ton of work.  In 
> addition, there are some blocker bugs in DMD (1645 and 2524 right now) 
> that prevent a complete port.
> 
> When the shared/unshared paradigm is released, there's probably another 
> ton of work to do :)

You can already used shared/unshared. The semantics aren't implemented, 
but the type system support for it is.

> 
> And of course, there's the possibility of redesigns.  A lot of code can 
> probably make use of __traits and there are the new range constructs to 
> consider.  Of course, these are all probably things that would be 
> severely different from the D1 version, so they probably won't happen 
> for a while.
> 
> Note that the September or later date is based on the amount of time I 
> spend on it (which isn't a lot).  Someone who wanted to do nothing but 
> porting Tango to D2 could probably get it done in a month or two.  Note 
> also that I don't consider the port done until all the "cast to get it 
> to compile" hacks are removed.  In some cases, this requires design 
> changes, and in some of those, tough decisions.
> 
> -Steve