Hi Vladimir, GET-PROPERTY is certainly a better name then SLOT-VALUE, but why not calling it PROPERTY, that is more generic and also 4 characters shorter. It would make sense in constructs like SETF. If I had the choice between : (setf (get-property foo 1 2 'bar) value) ; and (setf (property foo 1 2 'bar) value) I would pick PROPERTY because it is shorter and it says exactly what it is about ... a property of a JavaScript object. But ... if you want to go a step further, because what SLOT-VALUE is actually addressing/pointing/referring to, is either a property, a function, or an object, you can consider to call it MEMBER, which is even a shorter name and even more generic. If you would ask me, I would go for MEMBER (setf (member foo 1 2 'bar) value ; how shorter and abstracter could one go :) Regards, Wout
On Mon, 2009-11-30 at 22:56 -0500, Vladimir Sedach wrote:
This is actually a cool example. I never thought about using SLOT-VALUE that way. I'm rewriting the reference manual right now (should be done in a couple of days), I'll make sure to mention this.
The way the @ macro works is actually just by quoting all symbols it finds and passing its arguments to SLOT-VALUE.
One thing is that I renamed SLOT-VALUE to GET-PROPERTY in the repository version, since what the form did really didn't have anything in common with Common Lisp's SLOT-VALUE, as someone pointed out.
Thanks, Vladimir
2009/11/25 Wout Perquin wout.perquin@skynet.be:
Hi Red,
It works on my version too (*) It is a clean solution that I like a lot. I did some tests and the slot-value operator is quite versatile. In fact it makes aref redundant because (slot-value foo 1 2 3) renders the same as (aref foo 1 2 3).
It also allows constructs like : (slot-value foo 1 "two" three 'bar 1 2) => "foo[1]['two'][three].bar[1][2];" //not necessary meaningful but possible :)
I believe the versatility of slot-value should make it to the reference.
Many thanks. Best wishes, Wout Perquin
(*) not sure what version I have, but the changelog youngest entry is from Nov-4, 2007
On Wed, 2009-11-25 at 00:10 -0800, Red Daly wrote:
On Tue, Nov 24, 2009 at 12:43 PM, Wout Perquin wout.perquin@skynet.be wrote:
On Tue, 2009-11-24 at 19:42 +0000, Wout Perquin wrote:
Hi, I would like to generate : "var value = element[i].childNode[0].nodeValue" in one sentence.
On my local version, slot-value accepts multiple slots:
(slot-value element i 'child-node 0 'node-value) =>"element[i].childNode[0].nodeValue;"
Nested @s and the like tend to become confusing, so I prefer this solution. I don't know if it is part of the current Parenscript or not.
Best regards, Red Daly
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