Re: [Vala] Bug with cleared Gee.ArrayList

[Jim Nelson <jim yorba org>]

My bet is that it's a bounds error, i.e. you called ArrayList.get() 
with index < 0 or index >= ArrayList.size.  (Note that the [] operator 
is actually a call to the .get() method.)

-- Jim

On Mon, Nov 11, 2013 at 11:15 AM, Daniel Brendle 
<grindhold skarphed org> wrote:
> Hi, fellow vala-people.
>
> My project "nostril" is growing well. But again i ran into a bug that 
> i
> don't know how to fix.
> I offer an "clear list"-feature. Which empties an ArrayList as in [0]
> If i already selected an entry in the list for viewing it in detail, 
> the
> program crashes with an error like this:
>
> ERROR:arraylist.c:518:gee_array_list_real_get: assertion failed: 
> (_tmp1_
> < _tmp2_)
> Using a search-engine on that errormessage was not very effective.
>
> My first thought was, that it happens because something that should be
> rendered hits an empty or invalid reference. But according to my
> debugging output the error happens _after_ the GUI-renderfunction 
> passed
> through.
>
> More Strange: The User can also delete a selection of list-entries my
> multi-selection. The function that does that takes a list of Entry-IDs
> and processes them as in [1]. This works.
>
> I already tried to delete every entry on its own like in [1] instead 
> of
> using the clear()-Method of the ArrayList. In this case the error 
> still
> occurs.
>
> The full code can still be cloned an seen here [2]
> I use valac-0.22
>
> Hope someone can bring some light into the darkness here.
>
>
> Thanks in advance,
>         Grindhold
>
>
> [0] http://pastebin.com/LH8T4z30
> [1] http://pastebin.com/2sFAdFX4
> [2] https://github.com/grindhold/nostril
>
>
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