I am going to set up darling to test this. I wrote nsclassswapper. On Saturday, June 22, 2013, Luboš Doležel wrote:
> Hi, > > I'm actually not porting the code - I'm writing a Wine-like emulation > layer called Darling to run OS X apps directly. This fact makes debugging > slightly more difficult, but you're welcome to take a look at > http://github.com/LubosD/darling. > > I find the bug straightforward, class swapping should happen before > action/target binding, but I may be wrong indeed. > > Germán, I'll mail a longer backtrace as soon as possible. > > Luboš > > Dne 22. června 2013 16:38:26 Eric Wasylishen ** napsal: > > Hi Luboš, > > I'm not too familiar with nib loading internals, but I will try to take a > look. Could you upload your work in progress code somewhere? (Or do you > have any changes to the original Mac source?) > > Cool idea to port the unarchiver. :-) > > Cheers, > Eric > On Jun 21, 2013 11:30 AM, "Luboš Doležel" <[email protected]> wrote: > > Hi, > > I'm still working on getting the latest The Unarchiver for OS X < > http://wakaba.c3.cx/s/apps/**unarchiver.html<http://wakaba.c3.cx/s/apps/unarchiver.html>> > working under GNUstep/Darling/Linux and I'm seeing crashes after the > application's NIB file is loaded. > > Now I'm sort of helpless. The crash happens when using the target of a > certain NSMenuItem. > > You can see an excerpt of the relevant NIB's source here; the NSMenuItem > clearly refers to the NSPopUpButtonCell that it is part of: > > <object class="NSPopUpButtonCell" key="NSCell" id="824605593"> > <int key="NSCellFlags">-2076180416</int> > <int key="NSCellFlags2">2048</int> > <reference key="NSSupport" ref="170887875"/> > <reference key="NSControlView" ref="790450297"/> > <int key="NSButtonFlags">109199360<**/int> > <int key="NSButtonFlags2">1</int> > <reference key="NSAlternateImage" ref="538669737"/> > <string key="NSAlternateContents"/> > <object class="NSMutableString" key="NSKeyEquivalent"> > <characters key="NS.bytes"/> > </object> > <int key="NSPeriodicDelay">400</**int> > <int key="NSPeriodicInterval">75</**int> > > <object class="NSMenuItem" key="NSMenuItem" id="444300673"> > <reference key="NSMenu" ref="552121880"/> > <string key="NSTitle">dummy</string> > <string key="NSKeyEquiv"/> > <int key="NSKeyEquivModMask">**1048576</int> > <int key="NSMnemonicLoc">2147483647</int> > <int key="NSState">1</int> > <reference key="NSOnImage" ref="1019969751"/> > <reference key="NSMixedImage" ref="16787521"/> > <string key="NSAction">_**popUpItemAction:</string> > <reference key="NSTarget" ref="824605593"/> > </object> > > (Full code can be found in The Unarchiver's source tarball in > MainMenu.nib/designable.nib) > > I can see the target being set correctly via -setTarget upon loading: > > Breakpoint 3, -[NSMenuItem setTarget:] (self=0x1845808, > _cmd=0x7ffff7a51eb0 <.objc_selector_list+176>, anObject=0x1843d58) at > NSMenuItem.m:465 > 465 if (_target == anObject) > (gdb) p anObject > $15 = (id) 0x1843d58 > (gdb) p anObject->isa > $16 = (struct objc_class *) 0x7ffff7a6bcc0 <_OBJC_CLASS_** > NSPopUpButtonCell> > > Backtrace: > > #0 -[NSMenuItem setTarget:] (self=0x189de68, _cmd=0x7ffff79f7ce0 > <.objc_selector_list+640>, anObject=0x1429f18) at NSMenuItem.m:465 > #1 0x00007ffff745354e in -[NSNibControlConnector establishConnection] > (self=0x189de38, _cmd=0x7ffff7afe330 <.objc_selector_list+1232>) at > NSBundleAdditions.m:177 > #2 0x00007ffff76cfb91 in -[NSIBObjectData > nibInstantiateWithOwner:**topLevelObjects:] > (self=0x14be778, _cmd=0x7ffff7afdf70 <.objc_selector_list+272>, > owner=0xe67488, > topLevelObjects=0x0) at GSNibLoading.m:1926 > #3 0x00007ffff76cff26 in -[NSIBObjectData awakeWithContext:] > (self=0x14be778, _cmd=0x7ffff7b1a170 <.objc_selector_list+176>, > context=0xcb09f8) at GSNibLoading.m:1982 > #4 0x00007ffff771028e in -[GSNibLoader > loadModelData:**externalNameTable:withZone:] > (self=0xde8158, _cmd=0x7ffff7a56260 <.objc_selector_list+224>, > data=0xeffb58, context=0xcb09f8, > zone=0x329060bb38 <default_zone>) at GSNibLoader.m:87 > #5 0x00007ffff753f57d in -[NSNib > instantiateNibWithExternalName**Table:withZone:] > (self=0xecf938, _cmd=0x7ffff79f7b00 <.objc_selector_list+160>, > externalNameTable=0xcb09f8, > zone=0x329060bb38 <default_zone>) at NSNib.m:153 > #6 0x000 > > -- Gregory Casamento Open Logic Corporation, Principal Consultant yahoo/skype: greg_casamento, aol: gjcasa (240)274-9630 (Cell) http://www.gnustep.org http://heronsperch.blogspot.com
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