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bug#2224: [PATCH] add-log.el: Modularize add-log-current-defun, new type

From: Stefan Monnier
Subject: bug#2224: [PATCH] add-log.el: Modularize add-log-current-defun, new types supported
Date: Thu, 12 Apr 2012 14:11:47 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.94 (gnu/linux)

>>>> (add-log-current-defun-type-javascript-like): New function.
>>>> (add-log-current-defun-type-shell-bourne-like): New function.
>>>> (add-log-current-defun-type-makefile-like): New function.
>>>> (add-log-current-defun-type-text-asciidoc-like): New function.
>>>> (add-log-current-defun-type-default): New function.
> [...]
>> Having them be separate functions is indeed very good.  But most of them
>> shouldn't be in add-log.el: they should be in their respective
>> major-mode instead.
> You mean just define `add-log-current-defun-type-javascript' in js.el,
> and stuff?  Doesn't that seem kinda...  I don't know.  Error-prone?

I thought you were going to say "Obvious?".

Think about it: why should add-log support be different than say,
font-lock, outline, imenu, younameit?  Oh and BTW, this same function
can/should be used for which-func-mode.

Of course in js.el it shouldn't be called
`add-log-current-defun-type-javascript' but `js--current-defun-name' or
something like that.

> Because add-log (in the patch) has a major cond up there that will call
> the functions unconditionally if there's a match with the mode (and
> other things), so there's potential for things getting out of sync if
> people are using different versions of (say) js.el that doesn't define
> the function in question...

We had the same problem when we moved the font-lock defs away from
font-lock.el.  Yes, it's a problem.  No, it's not insurmountable.


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