On 10 April 2013, Christian Brabandt <[email protected]> wrote:
> Hi LCD!
Hi!
> On Mi, 10 Apr 2013, LCD 47 wrote:
>
> > Variables local to (non-current) buffers can be read with
> > getbufvar() and written with setbufvar(). Is there a way to delete
> > variables from buffers? That is, is there a moral equivalent of
> > "unlet b:var" for non-current buffers?
>
> I think, since you only get references to variables when using
> getbufvar() you can simply modify the returned b: dict
>
> :call setbufvar(1, 'foobar', 2)
> :let var=getbufvar(1, '')
> :call filter(var, 'v:key != ''foobar''')
> :echo getbufvar(1, 'foobar')
Hmm, interesting idea, but "var" is locked:
E741: Value is locked: filter() argument
Is it safe / sane to unlock it?
Also, I presume Vim maintains reference counts and the like for
garbage collection, would this kind of manipulation do the right
adjustments?
/lcd
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