[dmd-beta] D2 2.058 alpha

[David Simcha]

Ok, I think I understand where you're coming from.  The intended use for
this was to add member functions depending on the result of the static if,
not member variables.  Adding member functions should in theory be legal,
but figuring out whether an instantiation could add member functions is
non-trivial and I think equivalent to the Halting Problem.

On Wed, Feb 8, 2012 at 9:59 AM, Don Clugston <dclugston at googlemail.com>wrote:

> I don't think that should compile.  If there was anything inside the
> 'static if' body, it'd be wrong code.
> To me, that looks like an accepts-invalid bug that's been fixed.
>
> On 8 February 2012 14:56, David Simcha <dsimcha at gmail.com> wrote:
> > On 2/8/2012 5:50 AM, Walter Bright wrote:
> >>
> >> http://ftp.digitalmars.com/dmd2beta.zip
> >>
> >> I'm calling it an alpha because we haven't resolved the associative
> array
> >> issue. But I want to see if there are any others before we do a release.
> >> _______________________________________________
> >> dmd-beta mailing list
> >> dmd-beta at puremagic.com
> >> http://lists.puremagic.com/mailman/listinfo/dmd-beta
> >>
> >
> > Bug 7426 is still broken in cases that worked in 2.057.
> >
> > struct S {
> >    static if(hasIndirections!(typeof(this))) {}
> > }
> >
> > template hasIndirections(T)
> > {
> >    enum hasIndirections = hasIndirectionsImpl!(typeof(T.init.tupleof));
> > }
> >
> > template hasIndirectionsImpl(T...)
> > {
> >    static if (!T.length)
> >    {
> >        enum hasIndirectionsImpl = false;
> >    }
> >    else
> >    {
> >        enum hasIndirectionsImpl = true;
> >
> >    }
> > }
> >
> > _______________________________________________
> > dmd-beta mailing list
> > dmd-beta at puremagic.com
> > http://lists.puremagic.com/mailman/listinfo/dmd-beta
> _______________________________________________
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> dmd-beta at puremagic.com
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>
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