byte-compile-noruntime-functions

byte-compile-noruntime-functions

[Glenn Morris]

I want to apply the following patch to bytecomp.el, but I've noticed
some things about byte-compile-noruntime-functions that I don't
understand.

1) It's a global variable. It's not buffer-local, nor does it get
   reset like byte-compile-unresolved-functions does (in
   byte-compile-from-buffer).

2) Nothing else ever seems to remove items from it, so it just grows
   and grows in any Emacs session.

Do these facts make sense?


*** bytecomp.el.~2.223.~    2007-12-02 13:40:19.000000000 -0800
--- bytecomp.el             2007-12-02 13:41:53.000000000 -0800
***************
*** 2828,2833 ****
--- 2828,2836 ----
                    (list 'declared (nth 3 form))
                  t))                     ; arglist not specified
          byte-compile-function-environment)
+   ;; We are stating that it _will_ be defined at runtime.
+   (setq byte-compile-noruntime-functions
+         (delq (nth 1 form) byte-compile-noruntime-functions))
    nil)

Re: byte-compile-noruntime-functions

[Glenn Morris]

Glenn Morris wrote:

> some things about byte-compile-noruntime-functions that I don't
> understand.
>
> 1) It's a global variable. It's not buffer-local, nor does it get
>    reset like byte-compile-unresolved-functions does (in
>    byte-compile-from-buffer).
>
> 2) Nothing else ever seems to remove items from it, so it just grows
>    and grows in any Emacs session.


I found some previous comments from you on this:

http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-01/msg00173.html

  From:   Richard Stallman
  Subject:        Re: `eval-when-compile' can cause incorrect byte-compiler warnings
  Date:         Sun, 18 Jan 2004 14:16:07 -0500

"I don't think it is correct to discard the byte-compile-noruntime
properties after each compilation."


Do you still feel that way?

Re: byte-compile-noruntime-functions

[Richard Stallman]

I don't remember any more what byte-compile-noruntime-functions
is used for.  I can study it again if necessary.

Re: byte-compile-noruntime-functions

[Glenn Morris]

Richard Stallman wrote:

> I don't remember any more what byte-compile-noruntime-functions
> is used for.  I can study it again if necessary.

I think it doesn't affect the change I wanted to make. So there's
probably no pressing need to think about it.