Recent changes to iwidgets-bugs

#117 Mac OS X: random crashes of wish (tcl/tk 8.6.6) using Iwidgets (4.1.0) radiobox class

Don Porter — Wed, 08 Aug 2018 22:45:29 -0000

Once I set up a testbed with all those outdated releases on an OSX High Sierra system, my testing shows no failure running the test script.

Sorry, but there continues to be nothing I can do when I cannot reproduce the failure.

#119 Throwing an error from within an itcl::ensemble causes a segmentation fault (core dump)

Don Porter — Wed, 14 Feb 2018 20:06:32 -0000

status: open --> closed-fixed
assigned_to: Don Porter

#119 Throwing an error from within an itcl::ensemble causes a segmentation fault (core dump)

Don Porter — Tue, 13 Feb 2018 19:23:34 -0000

By all appearances, in the entire Itcl 4 development history, this just hasn't been done. I suspect it's not hard to do, but I'm not ready to predict a completion date.

You can keep using Itcl 3.4.4 with Tcl 8.6 in the meantime.

#119 Throwing an error from within an itcl::ensemble causes a segmentation fault (core dump)

Trey Jackson — Tue, 13 Feb 2018 18:46:22 -0000

Is there a way to work around this issue temporarily?

#119 Throwing an error from within an itcl::ensemble causes a segmentation fault (core dump)

Don Porter — Tue, 13 Feb 2018 17:06:00 -0000

Itcl_InvokeEnsembleMethod is failing to set a ProcErrorProc.

Throwing an error from within an itcl::ensemble causes a segmentation fault (core dump)

Trey Jackson — Mon, 12 Feb 2018 23:33:17 -0000

Using a build from ActiveState, if I throw an error from inside an itcl::ensemble, the interpreter core dumps. This is very easy to reproduce - simply source this file and you get a crash.

!/bin/sh

--Tcl-- the next line restarts using tclsh \

exec tclsh  "$0" "$@"

package require Tcl 8.6.7
package require Itcl 4.1.0

itcl::ensemble myensemble part dothing {args} {
error "wait, what?"
}

myensemble dothing here

core dump

Yes, I realize that [namespace ensemble] is now a thing, but I am transitioning from Tcl 8.4 to 8.6, and I do not have namespace ensemble available. Our entire code base is now subject to this crazy bug.

Throwing an error from within an itcl::ensemble causes a segmentation fault (core dump)

Trey Jackson — Mon, 12 Feb 2018 23:33:17 -0000

Ticket 119 has been modified: Throwing an error from within an itcl::ensemble causes a segmentation fault (core dump)
Edited By: Don Porter (dgp)
Status updated: u'open' => u'closed-fixed'
Owner updated: None => u'dgp'

#118 application error when using combobox dropdown

Don Porter — Mon, 18 Dec 2017 17:52:42 -0000

status: open --> closed-duplicate
assigned_to: Don Porter

#118 application error when using combobox dropdown

Don Porter — Mon, 18 Dec 2017 17:52:22 -0000

Dup of bug 115. Already fixed.

application error when using combobox dropdown

Trey Jackson — Fri, 15 Dec 2017 21:48:12 -0000

To reproduce (using iwidgets 4.1 in Tcl/Tk 8.6.7)

set tl [toplevel .tl]
pack [iwidgets::combobox $tl.cb]

now, click on the down arrow in the combo box.
then click anywhere in the empty listbox that appears an you'll get this traceback

invalid command name "namespace inscope ::iwidgets::Combobox {::.tl.cb _selectCmd}"
while executing
"[itcl::code $this _selectCmd]"
(object "::.tl.cb" method "::iwidgets::Combobox::_stateSelect" body line 4)
invoked from within
"_stateSelect"
(object "::.tl.cb" method "::iwidgets::Combobox::_dropdownBtnRelease" body line 18)
invoked from within
"::.tl.cb _dropdownBtnRelease .tl.cb.lwchildsite.efchildsite.popup.list.lwchildsite.listbox 136 21"
(in namespace inscope "::iwidgets::Combobox" script line 1)
invoked from within
"namespace inscope ::iwidgets::Combobox {::.tl.cb _dropdownBtnRelease .tl.cb.lwchildsite.efchildsite.popup.list.lwchildsite.listbox 136 21}"
(command bound to event)