GNU bug report logs - #16963
A patch to create a list-with-tail primitive.

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Message #17 received at 16963 <at> debbugs.gnu.org (full text, mbox):

From: Daniel Colascione <dancol <at> dancol.org>
To: Demetrios Obenour <demetriobenour <at> gmail.com>
Cc: 16963 <at> debbugs.gnu.org, Stefan <monnier <at> IRO.UMontreal.CA>
Subject: Re: bug#16963: A patch to create a list-with-tail primitive.
Date: Thu, 27 Mar 2014 16:38:18 -0700

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On 03/27/2014 04:37 PM, Demetrios Obenour wrote:
> On Mon, 2014-03-24 at 19:45 -0700, Daniel Colascione wrote:
>> On 03/24/2014 07:10 PM, Stefan wrote:
>>>> Since a comment in backquote.el said that backquote-list* needed to be a
>>>> primitive, here is an implementation of it as one, under the name
>>>> list-with-tail.
>>>
>>> I think it would make more sense to call it `list*'.  Also it might make
>>> sense to change backquote.el so it uses this `list*' (tho probably only
>>> when passed with enough arguments).
>>
>> Agreed. On more that one occasion, I've wished we had a CL-less `list*'.
>> If you do add this feature, please make sure the existing list* compiler
>> macros keep working.
>>
> What about just deleting these compiler macros, and making cl-list* an
> alias for list*?
> 
> There seems to be little point in keeping them if list* is a primitive.

The new list* doesn't have an opcode, but cons does.

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