Re: Anything better for delayed lexical evaluation than (lambda () ...)?

[David Kastrup]

Andy Wingo <address@hidden> writes:

> On Wed 14 Dec 2011 00:45, David Kastrup <address@hidden> writes:
>
>> Andy Wingo <address@hidden> writes:
>>
>>> On Wed 14 Dec 2011 00:00, Noah Lavine <address@hidden> writes:
>>>
>>>> I haven't really been contributing to this thread, so please take my
>>>> opinion with a grain of salt. But it does appear to me that we should
>>>> support capturing a lexical environment, as Mark and David describe.
>>>>
>>>> So I took a look at ice-9/eval.scm....
>>>
>>> There is a compiler too.
>>
>> Lilypond calls eval on the # and $ scraps (though I don't know whether
>> that would be ice-9 or not).  Actually, I have no idea what else it
>> could call.
>
> It could call `compile', in 2.0.  It probably doesn't want to though.
>
> It sounds a bit academic, but this is not a moot point: as things are
> now, one can replace any call to `eval' with `compile'.

When would that be an advantage?  I could imagine compiling a loop makes
sense, but for most things evaluated once, the effort of compiling would
not appear to offset the savings.

-- 
David Kastrup