[Kde-bindings] Qt::StandardItemModel#item_prototype= causes crashe in qtruby

[Stefano Crocco]

Using Qt::StandardItemModel#item_prototype= and
Qt::StandardItemModel#horizontal_header= causes ruby to crash. Here's the code causing the crash:

require 'Qt4'

app = Qt::Application.new []
m = Qt::StandardItemModel.new
proto = Qt::StandardItem.new ''
proto.flags = Qt::ItemIsEnabled
m.set_item_prototype proto
m.horizontal_header_labels = %w[x y]
app.exec

If I comment out the call to horizontal_header_labels=, everything works
correctly.

Here's a backtrace from the crash

#0  QStandardItemModel::setHorizontalHeaderLabels (this=0x820a8a8, labels=@0x8213270) at itemviews/qstandarditemmodel.h:254
#1  0xb783f6c8 in xcall_QStandardItemModel (xi=<value optimized out>, obj=0x820a8a8, args=0x8213218) at /var/tmp/paludis/kde-base-smoke-scm/work/smoke_build/smoke/qt/x_14.cpp:7507
#2  0xb75d30f7 in QtRuby::MethodCall::callMethod (this=0xbfd6c2c8) at /home/stefano/tmp/kdebindings/ruby/qtruby/src/marshall_types.h:148
#3  0xb75d0eb8 in QtRuby::MethodCallBase::next (this=0xbfd6c2c8) at /home/stefano/tmp/kdebindings/ruby/qtruby/src/marshall_types.cpp:458
#4  0xb75a2ece in marshall_QStringList (m=0xbfd6c2c8) at /home/stefano/tmp/kdebindings/ruby/qtruby/src/handlers.cpp:1220
#5  0xb75d0efe in QtRuby::MethodCallBase::next (this=0xbfd6c2c8) at /home/stefano/tmp/kdebindings/ruby/qtruby/src/marshall_types.cpp:454
#6  0xb7598811 in method_missing (argc=2, argv=0xbfd6c6c0, self=3060539400) at /home/stefano/tmp/kdebindings/ruby/qtruby/src/Qt.cpp:888
#7  0xb7fa4235 in call_cfunc (func=0xb75983f0 <method_missing(int, unsigned long*, unsigned long)>, recv=3060539400, len=136393392, argc=2, argv=0x8213270) at eval.c:5749
#8  0xb7faf018 in rb_call0 (klass=3083401740, recv=3060539400, id=4057, oid=4057, argc=2, argv=0xbfd6c6c0, body=0xb7c8f8e0, flags=<value optimized out>) at eval.c:5904
#9  0xb7faf159 in rb_call (klass=3083401740, recv=3060539400, mid=4057, argc=2, argv=0xbfd6c6c0, scope=1, self=6) at eval.c:6151
#10 0xb7fafa35 in rb_funcall2 (recv=136393392, mid=4057, argc=2, argv=0xbfd6c6c0) at eval.c:6287
#11 0xb7fb51be in method_missing (obj=3060539400, id=4994062, argc=1, argv=0xbfd6c7b0, call_status=0) at eval.c:5729
#12 0xb7faf24b in rb_call (klass=3083530020, recv=3060539400, mid=19508, argc=1, argv=0xbfd6c7b0, scope=0, self=3084507480) at eval.c:6130
#13 0xb7faa3fb in rb_eval (self=3084507480, n=<value optimized out>) at eval.c:3474
#14 0xb7fba7a3 in ruby_exec_internal () at eval.c:1641
#15 0xb7fba7e3 in ruby_exec () at eval.c:1661
#16 0xb7fba818 in ruby_run () at eval.c:1671
#17 0x080487a5 in main (argc=136393392, argv=0xb7ee116b, envp=0x7000000) at main.c:48

Stefano