On 20 Sep 2011, at 19:51, Mike Abdullah wrote: > > On 20 Sep 2011, at 10:49, Gerriet M. Denkmann wrote: > >> In my toy editor I open an existing document, modify it and click >> "Duplicate". >> >> A Sheet comes down and tells me that the duplicate will contain my latest >> modifications. >> I click the default "Duplicate" button and get: >> >> 2011-09-20 16:29:43.164 TextEditor[4062:707] *** -[NSPathStore2 >> stringByAppendingPathExtension:]: nil argument >> 2011-09-20 16:29:43.213 TextEditor[4062:707] ( >> 0 CoreFoundation 0x00007fff8742a986 >> __exceptionPreprocess + 198 >> 1 libobjc.A.dylib 0x00007fff80f84d5e >> objc_exception_throw + 43 >> 2 CoreFoundation 0x00007fff8742a7ba >> +[NSException raise:format:arguments:] + 106 >> 3 CoreFoundation 0x00007fff8742a744 >> +[NSException raise:format:] + 116 >> 4 Foundation 0x00007fff89d8a172 >> -[NSPathStore2 stringByAppendingPathExtension:] + 112 >> 5 AppKit 0x00007fff845808c3 -[NSDocument >> _preserveCurrentVersionForReason:error:] + 579 >> 6 AppKit 0x00007fff84586bc3 >> __-[NSDocument >> duplicateDocumentWithDelegate:didDuplicateSelector:contextInfo:]_block_invoke_3 >> + 119 >> 7 AppKit 0x00007fff845819a9 -[NSDocument >> _something:wasPresentedWithResult:soContinue:] + 21 >> 8 AppKit 0x00007fff84472bee -[NSAlert >> didEndAlert:returnCode:contextInfo:] + 93 >> 9 AppKit 0x00007fff8447f356 >> -[NSApplication endSheet:returnCode:] + 275 >> 10 AppKit 0x00007fff84472ab4 -[NSAlert >> buttonPressed:] + 265 >> 11 CoreFoundation 0x00007fff8741a11d -[NSObject >> performSelector:withObject:] + 61 >> 12 AppKit 0x00007fff842ce852 >> -[NSApplication sendAction:to:from:] + 139 >> 13 AppKit 0x00007fff842ce784 -[NSControl >> sendAction:to:] + 88 >> 14 AppKit 0x00007fff842ce6af -[NSCell >> _sendActionFrom:] + 137 >> 15 AppKit 0x00007fff844d758a >> -[NSButtonCell performClick:] + 594 >> 16 AppKit 0x00007fff84337afd -[NSButton >> performKeyEquivalent:] + 368 >> 17 AppKit 0x00007fff84337722 -[NSView >> _performKeyEquivalent:conditionally:] + 45 >> 18 AppKit 0x00007fff8433796d -[NSControl >> _performKeyEquivalent:conditionally:] + 119 >> 19 AppKit 0x00007fff84337850 -[NSView >> performKeyEquivalent:] + 155 >> 20 AppKit 0x00007fff84473d06 >> -[_NSAlertContentView performKeyEquivalent:] + 92 >> 21 AppKit 0x00007fff84337722 -[NSView >> _performKeyEquivalent:conditionally:] + 45 >> 22 AppKit 0x00007fff84337850 -[NSView >> performKeyEquivalent:] + 155 >> 23 AppKit 0x00007fff84337722 -[NSView >> _performKeyEquivalent:conditionally:] + 45 >> 24 AppKit 0x00007fff84337695 -[NSWindow >> performKeyEquivalent:] + 58 >> 25 AppKit 0x00007fff8485caeb -[NSWindow >> keyDown:] + 74 >> 26 AppKit 0x00007fff84297ad2 -[NSWindow >> sendEvent:] + 7404 >> 27 AppKit 0x00007fff8422ff19 >> -[NSApplication sendEvent:] + 5665 >> 28 AppKit 0x00007fff841c642b >> -[NSApplication run] + 548 >> 29 AppKit 0x00007fff8444452a >> NSApplicationMain + 867 >> 30 TextEditor 0x0000000100001bc0 main + 32 >> 31 TextEditor 0x0000000100001b94 start + 52 >> 32 ??? 0x0000000000000001 0x0 + 1 >> ) >> >> TextEdit can duplicate a modified document without any problems. >> >> So obviously my program does something not quite right. >> But as there is hardly any of my own code in this backtrace, how can I debug >> this? > > What NSDocument methods have you overridden?
Of the save stuff only: - (id)fileWrapperOfType:(NSString *)typeName error:(NSError **)outError and: + (BOOL)autosavesInPlace returns YES. > Do any of them get called during this routine? None, as seen from the backtrace. After the exception fileWrapperOfType... gets called, but then everything is already screwed up. Gerriet. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
