[Issue 8446] Can't use 'this' pointer in pure member function?

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=8446



--- Comment #2 from Dmitry Olshansky <dmitry.olsh at gmail.com> 2012-11-09 10:50:40 PST ---
(In reply to comment #1)
> (In reply to comment #0)
> 
> This is a trivial bug of the original code.
> 
> >    @property auto byInterval() pure const
> >    {
> >        static struct IntervalRange
> >        {
>              this(in RleBitSet set_) // should be pure
> >            {
> >            }            
> >        }
>          return IntervalRange(this); // needs pure constructor
> >    }

Thanks, it's indeed obvious from the perspective. But since this was a
parameter, it didn't occur to me it means constructor of IntervalRange that is
not pure. Must have been angry already.

I'd still argue that error message is not helpful.

Error: pure function 'byInterval' cannot call impure function 'this'

There is no idication of which 'this' it talks about. Would it be better if it
listed IntervalRange.this?

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