default implemented opAssign purity
Jonathan M Davis
jmdavisProg at gmx.com
Sun Dec 2 11:34:08 PST 2012
On Sunday, December 02, 2012 11:12:45 Ali Çehreli wrote:
> On 12/02/2012 07:50 AM, Dan wrote:
> > On Sunday, 2 December 2012 at 14:13:34 UTC, Maxim Fomin wrote:
> >> Are you looking for this http://dpaste.dzfl.pl/7ee27db2 ?
> >
> > I did not know you could call __postblit - that's cool.
>
> I did not know either. :)
>
> I was going to ask "Is __postblit a part of the language spec" but then
> I found TypeInfo.postblit:
>
> http://dlang.org/phobos/object.html#postblit
>
> I hoped the following might work:
>
> typeid(this).postblit(&this);
>
> But no, it is not pure:
>
> Error: pure function 'opAssign' cannot call impure function 'postblit'
Pretty much none of the built-in stuff like that is pure or nothrow right now.
It needs to be fixed.
- Jonathan M Davis
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