Re: Calling autoloaded dictionary functions
- Christian Brabandt wrote:
> On Sa, 23 Mär 2013, Bram Moolenaar wrote:Thanks, I'll check it out later.
> > Christian Brabandt wrote:
> > > On Fr, 22 Mär 2013, Jim Stewart wrote:
> > >
> > > > This is an old post, but I'm glad I ran into it.
> > > >
> > > > I'm fairly sure you're right about this, and that it's a bug in Vim rather than intentional behavior. I think it's a side-effect of the intended behavior that references a variable won't trigger an autoload.
> > > >
> > > > I've been going nuts trying to debug something, and this is the exact behavior I see. I'm not going to dive into the yak shaving hole and check the Vim source tonight, but this warrants some investigation. If it's intentional, I'm not sure why; powerful things could be done with this working.
> > > >
> > > > If I fix it I'll try to remember to update here. This is the only comment on the net about it that I've run across so far.
> > >
> > > What Vim version does that happen. I don't see the error with vim
> > > 7.3.854
> > It's actually in the todo list:
> > Using ":call foo#d.f()" doesn't autoload the "foo.vim" file.
> > That is, calling a dictionary function on an autoloaded dict.
> > Works OK for echo, just not for ":call" and ":call call()". (Ted, 2011 Mar
> > 17)
> I see the problem:
> get_lval() calls find_var() with the hashtab argument set. find_var()
> then calls find_var_in_ht() with the third argument being not null (e.g.
> writing flag is true). But autoloading only happens, when writing flag
> is false.
> This simple patch fixes it, but I don't know if this is correct (but at
> least the testsuite runs successfully)
> diff --git a/src/eval.c b/src/eval.c
> --- a/src/eval.c
> +++ b/src/eval.c
> @@ -2551,7 +2551,6 @@
> listitem_T *ni;
> char_u *key = NULL;
> int len;
> - hashtab_T *ht;
> /* Clear everything in "lp". */
> vim_memset(lp, 0, sizeof(lval_T));
> @@ -2599,7 +2598,7 @@
> cc = *p;
> *p = NUL;
> - v = find_var(lp->ll_name, &ht);
> + v = find_var(lp->ll_name, NULL);
> if (v == NULL && !quiet)
> EMSG2(_(e_undefvar), lp->ll_name);
> *p = cc;
> It could be possible, that this patch makes vim always source an
> autoload script, even if it did before. I am not 100 percent sure on
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