Re: [Vala] Strangeness with sorting using Gee ArrayList

[Ali Sabil <ali sabil gmail com>]

On Sun, Jun 13, 2010 at 12:45 PM, Christer <christer nissen gmail com> wrote:
> Hi all,
>
> Ive been stuck with this problem for a week now. I have been asking on the
> irc channel as well but nobody so far has been able to see a problem with
> the code. I have gotten the suggestion to compile gee with debug info to dig
> deeper but I dont know how to do that. Im just a newbie using prebuilt
> packages. Im providing a test case below so anyone can compile and run it
> and maybe help me spot the problem. Could this be a bug in Gee?
>
> TEST CASE CODE
> =====================
> http://pastebin.com/ufnyXdpg
>
> - Replace directory path at line 93 with your own testing paths.
> - Try folders with many files and folders, it tends to cause the crash.
> - If you comment out the sorting at line 71, the program will not crash, so
> it seems to be the bad guy.
>
>
> COMPILER WARNINGS
> ==================
> gui.vala:22.1-22.25: warning: method `GUI.abort_started' never used
> gui.vala:28.1-28.26: warning: method `GUI.abort_complete' never used
> Test.vala.c: In function ‘file2_gee_comparable_interface_init’:
> Test.vala.c:323:20: warning: assignment from incompatible pointer type
> DirList.vala.c: In function
> ‘file_info_collection_file_gee_comparable_interface_init’:
> DirList.vala.c:318:20: warning: assignment from incompatible pointer type
> <b>Process return 0  execution time: 1.42 s</b>
>
>
> GDB OUTPUT:
> ===========
> (gdb) run
> Starting program: /home/chriniss/Code/Vala_Workspace/Static/Static
> [Thread debugging using libthread_db enabled]
> (process:4250): GLib-GObject-WARNING **: invalid uninstantiatable type
> `(null)' in cast to `GeeComparable'
> (process:4250): GLib-GObject-WARNING **: gtype.c:3097: invalid class pointer
> `0x8088790'
> Program received signal SIGSEGV, Segmentation fault.
> 0xb78cdc67 in gee_comparable_compare_to () from /usr/lib/libgee.so.2
>
>
>
> Im hopeful somebody can spot the problem with the code or Gee itself and I
> would really, really appreciate some pointers on how to fix this. Im
> stuck...
>
> Kind regards,
> Christer

Hi Christer,

I just tried your code and it works perfectly here using Vala 0.8.1
and libgee 0.5.0

Cheers,

Ali