DMD 1.038 and 2.022 releases

[John Reimer]

Hello Denis,

> On Sat, 20 Dec 2008 15:39:08 +0300, Bill Baxter <wbaxter at gmail.com>
> wrote:
> 
>> On Sat, Dec 20, 2008 at 9:11 PM, Denis Koroskin <2korden at gmail.com>
>> wrote:
>> 
>>> On Mon, 15 Dec 2008 10:58:23 +0300, Bill Baxter <wbaxter at gmail.com>
>>> wrote:
>>> 
>>>> For me, V1.038 compiles my code but takes a really really really
>>>> long time to do so.
>>>> 
>>>> It now takes  1 min 20 secs for a full build, when it used to
>>>> compile
>>>> in 13 seconds.
>>>> Forget the 60% slowdown from LDC -- this is 515% slower!
>>>> (building with DSSS and tango)
>>>> 
>>>> --bb
>>>> 
>>> I generally make all my imports private and run a command line tool
>>> that strips unnecessary imports once in a while to minimize
>>> intermodular dependencies. Maybe it could help in your case, too?
>>> 
>> I'd love to have an unnecessary import finder tool.  How does that
>> work?
>> 
>> --bb
>> 
> It's easy: remove an import and try if it still works :)
> I recompile that file only and since all the imports are private, it
> generally doesn't break other files.
> The only exception - templates. They aren't fully analyzed until
> instanciated and therefore some imports may be removed even if they
> are  necessary. A simple tag prevents an import from removal:
> 
> private import std.algorithm; // force
> 
> Works about 3 minutes to remove all redundant imports from DWT.
> 


So you've tried this with dwt?  Were you able to see if it affected the final 
binary size or speed of compilation for dwt projects?

Removing all redundant imports in DWT is something we should see happen in 
the repository. :)

-JJR