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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Lynn Winebarger <owinebar@gmail.com>
Cc: Andrea Corallo <akrl@sdf.org>,  emacs-devel@gnu.org
Subject: Re: native compilation units
Date: Sun, 12 Jun 2022 14:47:08 -0400	[thread overview]
Message-ID: <jwvo7yxafng.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <CAM=F=bD_iXDWpFi_RRBHWtGLyWV8xVhNgQx=AyVUzM2QOtVkwQ@mail.gmail.com> (Lynn Winebarger's message of "Sun, 12 Jun 2022 13:38:40 -0400")

>> >> In which sense would it be different from:
>> >>
>> >>     (cl-flet
>> >>         ...
>> >>       (defun ...)
>> >>       (defun ...)
>> >>       ...)
>> >>
>> >>
>> > Good point - it's my scheme background confusing me.  I was thinking defun
>> > would operate with similar scoping rules as defvar and establish a local
>> > binding, where fset (like setq) would not create any new bindings.
>>
>> I was not talking about performance but about semantics (under the
>> assumption that if the semantics is the same then it should be possible
>> to get the same performance somehow).
>
> I'm trying to determine if there's a set of expressions for which it
> is semantically sound to perform the intraprocedural optimizations

The cl-flet above is such an example, AFAIK.  Or maybe I don't
understand what you mean.

> I'm trying to capture a function as a first class value.

Functions are first class values and they can be trivially captured via
things like (setq foo (lambda ...)), (defalias 'foo (lambda ...)) and
a lot more, so I there's some additional constraint you're expecting but
I don't know what that is.

> This was not expected with lexical scope.

You explicitly write `(require 'cl-lib)` but I don't see any

    -*- lexical-binding:t -*-

anywhere, so I suspect you forgot to add those cookies that are needed
to get proper lexical scoping.

> With the current byte-codes, there's just no way to express a call to
> an offset in the current byte-vector.

Indeed, but you can call a byte-code object instead.


        Stefan




  reply	other threads:[~2022-06-12 18:47 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-31  1:02 native compilation units Lynn Winebarger
2022-06-01 13:50 ` Andrea Corallo
2022-06-03 14:17   ` Lynn Winebarger
2022-06-03 16:05     ` Eli Zaretskii
     [not found]       ` <CAM=F=bDxxyHurxM_xdbb7XJtP8rdK16Cwp30ti52Ox4nv19J_w@mail.gmail.com>
2022-06-04  5:57         ` Eli Zaretskii
2022-06-05 13:53           ` Lynn Winebarger
2022-06-03 18:15     ` Stefan Monnier
2022-06-04  2:43       ` Lynn Winebarger
2022-06-04 14:32         ` Stefan Monnier
2022-06-05 12:16           ` Lynn Winebarger
2022-06-05 14:08             ` Lynn Winebarger
2022-06-05 14:46               ` Stefan Monnier
2022-06-05 14:20             ` Stefan Monnier
2022-06-06  4:12               ` Lynn Winebarger
2022-06-06  6:12                 ` Stefan Monnier
2022-06-06 10:39                   ` Eli Zaretskii
2022-06-06 16:23                     ` Lynn Winebarger
2022-06-06 16:58                       ` Eli Zaretskii
2022-06-07  2:14                         ` Lynn Winebarger
2022-06-07 10:53                           ` Eli Zaretskii
2022-06-06 16:13                   ` Lynn Winebarger
2022-06-07  2:39                     ` Lynn Winebarger
2022-06-07 11:50                       ` Stefan Monnier
2022-06-07 13:11                         ` Eli Zaretskii
2022-06-14  4:19               ` Lynn Winebarger
2022-06-14 12:23                 ` Stefan Monnier
2022-06-14 14:55                   ` Lynn Winebarger
2022-06-08  6:56           ` Andrea Corallo
2022-06-11 16:13             ` Lynn Winebarger
2022-06-11 16:37               ` Stefan Monnier
2022-06-11 17:49                 ` Lynn Winebarger
2022-06-11 20:34                   ` Stefan Monnier
2022-06-12 17:38                     ` Lynn Winebarger
2022-06-12 18:47                       ` Stefan Monnier [this message]
2022-06-13 16:33                         ` Lynn Winebarger
2022-06-13 17:15                           ` Stefan Monnier
2022-06-15  3:03                             ` Lynn Winebarger
2022-06-15 12:23                               ` Stefan Monnier
2022-06-19 17:52                                 ` Lynn Winebarger
2022-06-19 23:02                                   ` Stefan Monnier
2022-06-20  1:39                                     ` Lynn Winebarger
2022-06-20 12:14                                       ` Lynn Winebarger
2022-06-20 12:34                                       ` Lynn Winebarger
2022-06-25 18:12                                       ` Lynn Winebarger
2022-06-26 14:14                                         ` Lynn Winebarger
2022-06-08  6:46         ` Andrea Corallo

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