all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Paul Pogonyshev <pogonyshev@gmail.com>
To: 26073@debbugs.gnu.org
Subject: bug#26073: bug in generator function with nested dash anaphoric macros
Date: Sun, 12 Mar 2017 14:25:06 +0100	[thread overview]
Message-ID: <CAG7Bpao-E1pn1H-wgfCoJHqO4wHF1NFzw8W13--pVhVY_Sr1Sg@mail.gmail.com> (raw)

To reproduce:

(iter-do (y (funcall (iter-lambda (x)
                       (--each x
                          (let ((y (--map (- it) it)))
                            (iter-yield y))))
                     '((1 2) ( 3 4))))
  (print y))

This should print (-1 -2) and (-3 -4), but instead results in an error.
If you comment out the `iter-yield' form, the example evaluates---
producing different output, of course, but at least without errors.

This looks related to bug #26068, but is not fixed by the patch in
that bug. It is likely related to that both nested dash forms use
`it' variable, and it looks like the wrong (outer) `it' is passed to (- it).

Paul





             reply	other threads:[~2017-03-12 13:25 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-12 13:25 Paul Pogonyshev [this message]
2017-03-12 14:05 ` bug#26073: Simplified testcase Paul Pogonyshev
2017-03-19 19:31 ` bug#26073: workaround Paul Pogonyshev
2017-03-20  0:49   ` Stefan Monnier
2017-03-20  9:04     ` Paul Pogonyshev
2017-03-20  9:22       ` Paul Pogonyshev
2017-09-26 14:38         ` Stefan Monnier
2017-09-28 17:18           ` Paul Pogonyshev
2017-09-28 20:07             ` Stefan Monnier
2017-09-28 19:39           ` Philipp Stephani
2017-09-28 20:09             ` Stefan Monnier
2017-11-27 20:34             ` Stefan Monnier
2018-02-09  0:34               ` Noam Postavsky
2018-02-09  2:43                 ` Stefan Monnier
2018-02-15  2:37                   ` Noam Postavsky
2017-03-20 13:25       ` Stefan Monnier
2017-03-20 14:20         ` Paul Pogonyshev

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAG7Bpao-E1pn1H-wgfCoJHqO4wHF1NFzw8W13--pVhVY_Sr1Sg@mail.gmail.com \
    --to=pogonyshev@gmail.com \
    --cc=26073@debbugs.gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.