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author | Richard M. Stallman <rms@gnu.org> | 1995-03-03 06:49:59 +0000 |
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committer | Richard M. Stallman <rms@gnu.org> | 1995-03-03 06:49:59 +0000 |
commit | 681f0d9557e976a6045d986565fe7464a1bcc0e5 (patch) | |
tree | 4d8d0d25254f9d7e11b96244a2cb3d495f067539 | |
parent | a819c7d7ecaddc3e4fa860992b72b215c5e04b9b (diff) | |
download | emacs-681f0d9557e976a6045d986565fe7464a1bcc0e5.tar.gz |
Change in eval-after-load; advise not using it.
-rw-r--r-- | lispref/loading.texi | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/lispref/loading.texi b/lispref/loading.texi index 01b648d0026..8254107e710 100644 --- a/lispref/loading.texi +++ b/lispref/loading.texi @@ -583,7 +583,8 @@ loaded, by calling @code{eval-after-load}. @defun eval-after-load library form This function arranges to evaluate @var{form} at the end of loading the -library @var{library}, if and when @var{library} is loaded. +library @var{library}, if and when @var{library} is loaded. If +@var{library} is already loaded, it evaluates @var{form} right away. The library name @var{library} must exactly match the argument of @code{load}. To get the proper results when an installed library is @@ -594,6 +595,18 @@ An error in @var{form} does not undo the load, but does prevent execution of the rest of @var{form}. @end defun +In general, well-designed Lisp programs should not use this feature. +The clean and modular ways to interact with a Lisp library are (1) +examine and set the library's variables (those which are meant for +outside use), and and (2) call the library's functions. If you wish to +do (1), you can do it immediately---there is no need to wait for when +the library is loaded. To do (2), you must load the library (preferably +with @code{require}). + +But it is to use @code{eval-after-load} in your personal customizations +if you don't feel they must meet the design standards of programs to be +released. + @defvar after-load-alist An alist of expressions to evaluate if and when particular libraries are loaded. Each element looks like this: |