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Re: eval-after-load causes void-variable error

From: Le Wang
Subject: Re: eval-after-load causes void-variable error
Date: Fri, 18 Jan 2013 09:35:18 +0800

On Fri, Jan 18, 2013 at 8:07 AM, Barry Margolin <address@hidden> wrote:
> When you use a feature name rather than a filename (i.e. a symbol rather
> than a string) in eval-after-load, it evals as soon as the feature is
> provided, not after the file is loaded. ffap.el contains
> (provide 'ffap)
> at the beginning of the file, so your expression gets evaluated before
> ffap-alist has been initialized. It really should be at the end, since
> the feature doesn't really exist until the whole file is loaded.

Definitely using the filename is preferred, however reading the source
of `eval-after-load' on 24.2.1 it seems like this has been "fixed".

        ;; For features, the after-load-alist elements get run when `provide' is
        ;; called rather than at the end of the file.  So add an indirection to
        ;; make sure that `form' is really run "after-load" in case the provide
        ;; call happens early.

> --
> Barry Margolin, address@hidden
> Arlington, MA
> *** PLEASE post questions in newsgroups, not directly to me ***


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