Re: What's missing in ELisp that makes people want to use cl-lib?

[Michael Heerdegen]

João Távora <joaotavora@gmail.com> writes:

> The only way you are eventually going to get to equal performance
> with cl-lib's fastest variants (but only the non-destructive, of course)
> is if you start every seq.el entry point with sth like
>
>    (if (sequence-p seq) (call-equivalent-cl-lib-version seq) ...)
>
> But then I don't see how that fits in with the cl-defgeneric,
> which does dispatching before that if.  The only way I see this
> is to invent a new kind of specializer in cl-generic.el like
> 'definitely-not-sequence'.  There could be some other solution,
> maybe Michael as a clue.

I'm a bit lost I must admit.  I don't understand the use of your
`sequence-p' test (all we use seq.el for are sequences...?).

Sorry if I missed something obvious,

Michael.