Re: Thoughts on getting correct line numbers in the byte compiler's warning messages

[Michael Heerdegen]

Alan Mackenzie <address@hidden> writes:

> > Sure.  The problem is how to find the right cons when several such
> > places exist.  Likewise for strings etc.
>
> I'm not sure I follow you, here.  Surely the "right" cons is the one
> containing the symbol occurrence whose position is known?  Or the one
> containing that, and so on.

Yes, if destructuring patterns also were able to desctructure the
position info structure.  Otherwise, matching `(,P1 ,P2 ,P3) against
(a a a) has the problem that the Pi don't know which of the a's they are
matched against.

> Right at the moment I'm trying to get SYMBOLP to recognise both normal
> symbols and "located symbols".  This is causing a segfault on building
> such a test Emacs.  :-(

Then good luck!


Michael.