[bug #24978] Selector types conflict with a -setName: method that returns void

[Quentin Mathé]

URL:
  <http://savannah.gnu.org/bugs/?24978>

                 Summary: Selector types conflict with a -setName: method
that returns void
                 Project: GNUstep
            Submitted by: qmathe
            Submitted on: lun 01 déc 2008 18:02:45 GMT
                Category: Base/Foundation
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

GNUstep base, gui, back r27168 and gnustep-make a bit older 
Ubuntu Gutsy Gibbon, GCC 4.1.3, libffi 4.2.1 

When running an application, I get an assertion that looks similar to the
distributed notification bug reported as #24939

<NSException: 0x848f028> NAME:NSInternalInconsistencyException
REASON:[ETLayoutItem-setName:] selector types (C12@0:4@8) don't match method
types (v12@0:4@8)

The same code runs fine on Mac OS X and also ran on GNUstep the last time I
check it (around one month ago). It looks like there is a -setName; method
somewhere that returns an unsigned char... I have checked that -setName is:
always declared as  returning void in my code.

Here is the backtrace:
#0  -[NSException raise] (self=0x848f028, _cmd=0xb7a8e1c0) at
NSException.m:831
#1  0xb784e2d7 in +[NSException raise:format:arguments:] (self=0xb7a8dfa0, 
    _cmd=0xb7a8e1a8, name=0xb7a8dd24, format=0xb7aa1a34, 
    argList=0xbfe24c30 "\220�H\b-") at NSException.m:781
#2  0xb784e20f in +[NSException raise:format:] (self=0xb7a8dfa0, 
    _cmd=0xb7aa2410, name=0xb7a8dd24, format=0xb7aa1a34) at
NSException.m:767
#3  0xb78992f3 in -[NSObject methodSignatureForSelector:] (self=0x848de28, 
    _cmd=0xb7adf4a8, aSelector=0xb7e95f18) at NSObject.m:1670
#4  0xb795470e in GSObjCSetVal (self=0x848de28, key=0xbfe24e80 "name", 
    val=0x804aa98, sel=0xb7e95f18, type=0x0, size=4, offset=134523628)
    at GSObjCRuntime.m:1879
#5  0xb7879335 in SetValueForKey (self=0x848de28, anObject=0x804aa98, 
    key=0xbfe24e80 "name", size=4) at NSKeyValueCoding.m:154
#6  0xb787a025 in -[NSObject(KeyValueCoding) setValue:forKey:] (
    self=0x848de28, _cmd=0xb7f52488, anObject=0x804aa98, aKey=0x804aaec)
    at NSKeyValueCoding.m:352
#7  0xb7efd3c8 in -[ETLayoutItem setValue:forProperty:] (self=0x848de28, 
    _cmd=0x804b040, value=0x804aa98, key=0x804aaec) at ETLayoutItem.m:839
#8  0x08049065 in -[TableController awakeFromNib] (self=0x843ee50, 
    _cmd=0xb7ea89b0) at TableController.m:88
#9  0xb7d9e58c in -[GSNibContainer awakeWithContext:] (self=0x832ba18, 
    _cmd=0xb7eb7020, context=0x8306348) at GSNibTemplates.m:261
#10 0xb7dbe8ab in -[GSGormLoader loadModelData:externalNameTable:withZone:]
(
    self=0x8192998, _cmd=0xb7eb7060, data=0x8328958, context=0x8306348, 
    zone=0xb7acc280) at GSGormLoader.m:80
#11 0xb7dbeb8b in -[GSGormLoader loadModelFile:externalNameTable:withZone:]
(
    self=0x8192998, _cmd=0xb7df91a8, fileName=0x832ac48, context=0x8306348, 
    zone=0xb7acc280) at GSGormLoader.m:134
#12 0xb7bd57e0 in +[NSBundle(NSBundleAdditions)
loadNibFile:externalNameTable:withZone:] (self=0xb7a7a960, _cmd=0xb7df9228,
fileName=0x832ac48, 
    context=0x8306348, zone=0xb7acc280) at NSBundleAdditions.m:243
#13 0xb7bd5ea0 in -[NSBundle(NSBundleAdditions)
loadNibFile:externalNameTable:withZone:] (self=0x818ab10, _cmd=0xb7df91d0,
fileName=0x818c250, 
    context=0x8306348, zone=0xb7acc280) at NSBundleAdditions.m:344
#14 0xb7bd59bb in +[NSBundle(NSBundleAdditions) loadNibNamed:owner:] (
    self=0xb7a7a960, _cmd=0xb7debab8, aNibName=0x818c250, owner=0x81929d8)
    at NSBundleAdditions.m:282
#15 0xb7ba188c in -[NSApplication finishLaunching] (self=0x81929d8, 
    _cmd=0xb7f48d38) at NSApplication.m:952
#16 0xb7edc5d4 in -[ETApplication finishLaunching] (self=0x81929d8, 
    _cmd=0xb7debc28) at ETApplication.m:70
#17 0xb7ba35eb in -[NSApplication run] (self=0x81929d8, _cmd=0xb7de1300)
    at NSApplication.m:1382
#18 0xb7b852e1 in NSApplicationMain (argc=1, argv=0xbfe25414) at
Functions.m:74
#19 0x080498a6 in main (argc=Cannot access memory at address 0x19

The line 88 that triggers the exception is the following one from
TableController:
        [item setValue: @"Red" forProperty: @"name"];

-[ETLayoutItem setValue:forProperty:] calls -[ETlayoutItem setName:] through
KVC.

Quentin.






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