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| author | Adam Porter <adam@alphapapa.net> | 2024-03-08 23:43:14 -0600 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2024-03-21 12:41:44 +0200 |
| commit | 393f58c85aeb78f814866ccaad9ae7efd3fa6766 (patch) | |
| tree | 741c23c6956027a84692a93428f432ef9b1d5f02 /etc | |
| parent | fe24a8c3c091c1e051fe6a8c1ec4fd30ca052ca7 (diff) | |
| download | emacs-393f58c85aeb78f814866ccaad9ae7efd3fa6766.tar.gz | |
'vtable-update-object' can now be called with one argument
It's often necessary to update the representation of a single
object in a table (e.g a struct, whose identity does not change
when its slots'
values are changed). To do so, now the function may be called
like this:
(vtable-update-object table object)
Instead of like this:
(vtable-update-object table object object)
This also documents the behavior of the just-discovered limitation filed
as bug#69837.
* lisp/emacs-lisp/vtable.el (vtable-update-object): Make 'old-object'
argument optional. (Bug#69666)
* doc/misc/vtable.texi (Interface Functions): Update documentation.
* etc/NEWS: Add news entry.
Diffstat (limited to 'etc')
| -rw-r--r-- | etc/NEWS | 9 |
1 files changed, 9 insertions, 0 deletions
@@ -2197,6 +2197,15 @@ aforementioned functions: (and (arrayp executing-kbd-macro) (>= executing-kbd-macro-index (length executing-kbd-macro)))) ++++ +** 'vtable-update-object' updates an existing object with just two arguments. +It is now possible to update the representation of an object in a vtable +by calling 'vtable-update-object' with just the vtable and the object as +arguments. (Previously the 'old-object' argument was required which, in +this case, would mean repeating the object in the argument list.) When +replacing an object with a different one, passing both the new and old +objects is still necessary. + * Changes in Emacs 30.1 on Non-Free Operating Systems |