[phobos] core.demangle replacing std.demangle?

[Benjamin Shropshire]

David Simcha wrote:
> I tried to use core.demangle to print human-readable profiling reports 
> and it still seems to fail horribly on some symbols.  The 
> un-demanglable symbols seem to  be really complicated template 
> instantiations, like randomShuffle!(chain!(... .  IIRC there's some 
> fundamental limitation where once a symbol gets huge DMD relies on 
> hashing, so the mangling no longer has an inverse.  Is this true, or 
> is it worth spending some time trying to create a decent test case?

If a symbol is to large for the object file format, it gets compressed. 
If that is to large, a hash (MD5?) is taken (I would assume of the 
uncompressed symbol). OTOH, anything that is that long is going to be 
ugly even if you could de-mangle it.

>
> On Fri, Sep 10, 2010 at 10:14 AM, Andrei Alexandrescu 
> <andrei at erdani.com <mailto:andrei at erdani.com>> wrote:
>
>     Remove std.demangle and continue maintaining core.demangle.
>
>     Andrei
>
>
>     On 9/10/10 9:01 CDT, Sean Kelly wrote:
>
>         I wasn't sure whether to fix std.demangle now that
>         core.demangle works, or to replace/deprecate it.  At the time
>         I just needed something in druntime and I didn't like how
>         std.demangle did everything via string ops. What do you all think?
>
>         Sent from my iPhone
>
>         On Sep 10, 2010, at 1:12 AM, Lars Tandle
>         Kyllingstad<lars at kyllingen.net <mailto:lars at kyllingen.net>>
>          wrote:
>
>             I've noticed that Sean has recently added the
>             core.demangle module to
>             druntime.  Does this mean we can deprecate std.demangle?
>              I've never
>             used it myself, but I seem to remember people saying on
>             the NG that it
>             is pretty outdated.
>
>             -Lars
>
>             _______________________________________________
>             phobos mailing list
>             phobos at puremagic.com <mailto:phobos at puremagic.com>
>             http://lists.puremagic.com/mailman/listinfo/phobos
>
>         _______________________________________________
>         phobos mailing list
>         phobos at puremagic.com <mailto:phobos at puremagic.com>
>         http://lists.puremagic.com/mailman/listinfo/phobos
>
>     _______________________________________________
>     phobos mailing list
>     phobos at puremagic.com <mailto:phobos at puremagic.com>
>     http://lists.puremagic.com/mailman/listinfo/phobos
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> phobos mailing list
> phobos at puremagic.com
> http://lists.puremagic.com/mailman/listinfo/phobos