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Re: Don't move to eol in end-of-defun?
From: |
Filipp Gunbin |
Subject: |
Re: Don't move to eol in end-of-defun? |
Date: |
Mon, 08 Aug 2022 17:29:50 +0300 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (darwin) |
On 07/08/2022 00:24 -0400, Richard Stallman wrote:
> [[[ To any NSA and FBI agents reading my email: please consider ]]]
> [[[ whether defending the US Constitution against all enemies, ]]]
> [[[ foreign or domestic, requires you to follow Snowden's example. ]]]
>
> > The problem is that e-o-d moves point somewhere else _before_ it calls
> > end-of-defun-function, and that somewhere else can easily be in a
> > different (nested) defun.
>
> Is there a case which is incorrect _now_? If so, what case is it,
> and what happens now in that case?
Yes, my example from previous messages.
> > I think Filipp is asking for the coding of end-of-defun to be revisited.
>
> Code can be changed if it is broken, but the question behind that
> needs to be, "What is the right thing in this case?"
It's not broken, but rather clearly wasn't intended for nested defuns.
AFAICS, cc-mode overrides beginning/end-of-defun completely.
In my mode, I implemented just beginning/end-of-defun-function, while
using standard beginning/end-of-defun functions, and it works well
except for this case (and, yes, one more rare bug during narrowing, I'm
yet to investigate it).
Currently cc-mode and my implementation for Java work differently: as
Alan said, cc-mode goes outside the enclosing block, while I stay
inside. I find it convenient to think about nested things in this way:
C-M-a and C-M-e should behave as if we were narrowed to the current
enclosing block, like if its contained methods/whatever were top-level.
> > In these circumstances, for C-M-a to go to the outermost "defun"
> > wouldn't be useful.
>
> Yes, we do need to be able to have outer groupings which we designate
> as "does not count as a defun", so that things inside it which look like
> defuns do count as defuns.
>
> This requires a way for the programmer to mark them so that C-M-a
> mostly ignores them.
>
> However, any old nested function definition shouldn't be treated as a
> defun.
In Java, you can have "local" classes, these are classes defined and
used inside a method:
class C {
void foo() {
class D {
void bar() {
}
}
D d = new D();
...
}
}
So I chose to "honestly" parse & handle context right from the start.
Filipp
- Re: Don't move to eol in end-of-defun?, Alan Mackenzie, 2022/08/01
- Re: Don't move to eol in end-of-defun?, Richard Stallman, 2022/08/02
- Re: Don't move to eol in end-of-defun?, Filipp Gunbin, 2022/08/03
- Re: Don't move to eol in end-of-defun?, Richard Stallman, 2022/08/04
- Re: Don't move to eol in end-of-defun?, Filipp Gunbin, 2022/08/04
- Re: Don't move to eol in end-of-defun?, Richard Stallman, 2022/08/05
- Re: Don't move to eol in end-of-defun?, Alan Mackenzie, 2022/08/06
- Re: Don't move to eol in end-of-defun?, Richard Stallman, 2022/08/07
- Re: Don't move to eol in end-of-defun?,
Filipp Gunbin <=