TreeModel::get_path causes seg fault about gtk

[GuillaumeGomez]

I have a problem on the TreeModel too. @gkoz and I took a look but we couldn't find the problem. My problem is on the processus_viewer project. So your help is very welcome ! =D

[gkoz]

To reproduce, simply add the following line in the first for loop of the treeview example:
left_model.get_path(&iter);

Could you paste a diff so we would be on the same page here? I'm failing to reproduce this so far. I do have a feeling though that the iterators aren't always handled correctly.

[oakes]

diff --git a/src/treeview.rs b/src/treeview.rs
index 22dc6ef..81ab5ef 100644
--- a/src/treeview.rs
+++ b/src/treeview.rs
@@ -54,6 +54,7 @@ fn main() {
         let mut iter = gtk::TreeIter::new().unwrap();
         left_store.append(&mut iter);
         left_store.set_string(&iter, 0, "I'm in a list");
+        left_model.get_path(&iter);
     }

     // right pane

[GuillaumeGomez]

@gkoz: I think that's the problem we've got here.

[gkoz]

Thanks. Yeah, I see it too.

[GuillaumeGomez]

I think a g_object_ref is missing somewhere, causing the unwanted destruction of the object.

[gkoz]

Reduced failing code:

extern crate glib;
extern crate gtk;

use gtk::traits::*;

fn main() {
    gtk::init();

    let column_types = [glib::Type::String];
    let left_store = gtk::ListStore::new(&column_types).unwrap();
    let left_model = left_store.get_model().unwrap();
    let mut iter = gtk::TreeIter::new().unwrap();
    left_store.append(&mut iter);
    left_model.get_path(&iter);
}

I'll try the same in C.

[gkoz]

Okay, I guess the pointy hat goes to me for calling g_object_ref on a type that's not a GObject. :/