GNU bug report logs - #24073
24.5; outline-on-heading-p sees any invisible text property as outline inviisble

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Package: emacs;

Reported by: Paul Rankin <hello <at> paulwrankin.com>

Date: Tue, 26 Jul 2016 08:13:02 UTC

Severity: normal

Merged with 28080

Found in versions 24.5, 25.2

Fixed in version 26.1

Done: Glenn Morris <rgm <at> gnu.org>

Bug is archived. No further changes may be made.

Full log

Message #17 received at 24073 <at> debbugs.gnu.org (full text, mbox):

From: Paul Rankin <hello <at> paulwrankin.com>
To: 24073 <at> debbugs.gnu.org
Subject: 24.5; outline-on-heading-p sees any invisible text property as outline
 invisible
Date: Thu, 28 Jul 2016 14:25:52 +1000

I've tried to create an advice patch for the benefit of users affected by the bug to make outline-invisible-p return t for either 'outline or t, nil otherwise...

    (advice-add 'outline-invisible-p :filter-return
                (lambda (return) (eq return (or 'outline t)))
                '((name . "fountain-mode-patch")))

However, it appears that other compiled functions in outline that call outline-invisible-p do not respect this advice, e.g.

1. navigate to heading affected by above bug
2. M-: (outline-on-heading-p)
    => nil
3. navigate to (defun outline-on-heading-p ...) in outline.el
4. C-M-x
5. repeat 1. and 2.
    => t

Do compiled functions not respect advice added to functions that they call?

-- 
Paul W. Rankin
www.paulwrankin.com
This bug report was last modified 4 years and 202 days ago.

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