[parenscript-devel] Equality issues

Vladimir Sedach vsedach at gmail.com
Tue Apr 20 21:43:55 UTC 2010

You're right, that absolutely makes sense. I've pushed a fix.

It's interesting to note that this is the only place in the code
Parenscript generates where the semantics of '==' (as opposed to
'===') make sense.


2010/4/19 Daniel Gackle <danielgackle at gmail.com>:
> The array literals fix worked, thanks. Next up: the changes around equality
> are a problem.
> Specifically, the NULL operator, which used to evaluate to true on both null
> and undefined, now applies strict equality, meaning that (null undefined) is
> false. Since we use the NULL operator in a great many places precisely to
> check whether something is null or undefined, this change breaks our code.
> In general, I've found it to be good to conflate null and undefined in most
> of our PS code; it simplifies things and works fine. So I guess we have to
> go on record as protesting this change... especially since there already
> existed ways to distinguish null from undefined in the minority case when
> it's needed.
> Others' thoughts?
> Dan
> p.s. I haven't looked closely at the other implications of the equality
> changes, because the NULL issue is such a big one that I thought I'd start
> there.
> _______________________________________________
> parenscript-devel mailing list
> parenscript-devel at common-lisp.net
> http://common-lisp.net/cgi-bin/mailman/listinfo/parenscript-devel

More information about the parenscript-devel mailing list