[MacRuby-devel] Problems with return code from sheet (possible regression)

[Laurent Sansonetti]

FYI, the problem should (in theory) be fixed in r2741.

Laurent

On Oct 6, 2009, at 1:28 PM, Laurent Sansonetti wrote:

> Hi Michael,
>
> It's actually a well-known bug. MacRuby trunk doesn't honor the  
> sel_of_type BridgeSupport attribute, therefore your sheet callback  
> is registered to the runtime with the default signature (where all  
> arguments and return value are Objective-C objects), and later it  
> fails to convert the returnCode argument (in this backtrace, 0x1) as  
> an Objective-C object.
>
> Laurent
>
> On Oct 6, 2009, at 12:58 PM, Michael Winterstein wrote:
>
>> I seem to have run into nearly the same problem that I had a while  
>> back, in this ticket:
>> http://www.macruby.org/trac/ticket/221
>>
>> I haven't filed it yet this time since last time it turned out to  
>> be already fixed, but I'm not certain that's the case now.  At any  
>> rate, it's being handled by different functions.
>> The same thing is happening - the return code being passed to my  
>> delegate (from [NSApplication endSheet:returnCode]) isn't being  
>> treated as the NSInteger it ought to be.  At least I think so.   
>> Here's the trace, and you can see that the value 1(NSOKButton) is  
>> being treated as id, causing problems (0/NSCancelButton doesn't  
>> crash as it's a special case) :
>>
>> Program received signal:  “EXC_BAD_ACCESS”.
>> (gdb) bt
>> #0  rb_ocid_to_rval [inlined] () at /Users/parzival/devo/buried/ 
>> MacRuby/trunk/include/ruby/ruby.h:1252
>> #1  0x0000000100130161 in rb_vm_ocval_to_rval (ocval=0x1) at  
>> compiler.cpp:6155
>> #2  0x000000010110537c in ?? ()
>> #3  0x00007fff820c29f9 in -[NSApplication endSheet:returnCode:] ()
>> #4  0x00007fff81fd523e in -[NSApplication sendAction:to:from:] ()
>> #5  0x00007fff81fd519d in -[NSControl sendAction:to:] ()
>> #6  0x00007fff8206068b in -[NSCell  
>> trackMouse:inRect:ofView:untilMouseUp:] ()
>> #7  0x00007fff820911a3 in -[NSButtonCell  
>> trackMouse:inRect:ofView:untilMouseUp:] ()
>> #8  0x00007fff8205f135 in -[NSControl mouseDown:] ()
>> #9  0x00007fff81f79967 in -[NSWindow sendEvent:] ()
>> #10 0x00007fff81eaf122 in -[NSApplication sendEvent:] ()
>> #11 0x00007fff81e45acc in -[NSApplication run] ()
>> #12 0x00007fff81e3e798 in NSApplicationMain ()
>>
>> Attached are a few files as a test case, an NSWindowController  
>> subclass and MainMenu.nib that can be dropped into a  new project  
>> to check this if anyone wants to.  I recall when I first had this  
>> problem that I could see what the change was, but unfortunately  
>> I've forgotten that now.
>> <Testfiles.zip>
>>
>>
>>
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>
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