wxruby development - May 2011 - [ wxruby-Bugs-29218 ] Risk of incorrect deletion of Wx::Menu

Bugs item #29218, was opened at 2011-05-21 19:34
You can respond by visiting: 
http://rubyforge.org/tracker/?func=detail&atid=218&aid=29218&group_id=35

Category: Incorrect behavior
Group: None
Status: Open
Resolution: None
Priority: 2
Submitted By: Alex Fenton (brokentoy)
Assigned to: Alex Fenton (brokentoy)
Summary: Risk of incorrect deletion of Wx::Menu

Initial Comment:
wxRuby protects MenuBar and its associated Menus from GC by marking them via
their associated frame. It is possible that a partially-created menu might be
incorrectly destroyed before it''s associated with a Frame, if GC is
triggered during the set-up of the menu and the Menus are not connected by
instance variables.

For example

menubar = Wx::MenuBar.new(...)
menubar.append(SomeMenuSubClass.new)
# GC can be triggered here
frame.menubar = menubar

Tricky to fix in GC without being over-conservative and always preserving menus.
Workaround is to connect the MenuBar to the frame early using menubar


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You can respond by visiting: 
http://rubyforge.org/tracker/?func=detail&atid=218&aid=29218&group_id=35