#374: Adding a binding (in IB) prevents instance variables
-------------------------------------+--------------------------------------
Reporter: parzi...@… | Owner: lsansone...@…
Type: defect | Status: new
Priority: major | Milestone:
Component: MacRuby | Keywords:
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I've got a (MacRuby) subclass of NSWindowController. If a binding is
added using Interface Builder, it becomes impossible to have any instance
variables in my subclass. What's kind of strange, too, is that removing
the binding doesn't fix it; so far it seems necessary to delete the object
in IB and then re-create it.
I'm using r2771, on a MBP(2007) running 10.6.1. This was working at some
point in 0.4, but I think it's been broken for at least a couple weeks or
more.
Here's some code in my class to demonstrate. This gets called in
awakeFromNib, though I tried adding an instance variable in initWithWindow
and it came back nil as well :
{{{
testSPC = SourcePaneController.new
puts "testSPC:"
p testSPC
@testSPC_iv = SourcePaneController.new
puts "@testSPC_iv:"
p @testSPC_iv
testInt = 3
puts "testInt:"
p testInt
@testInt_iv = 5
puts "@testInt_iv:"
p @testInt
puts "Instance variables are :"
p self.instance_variables
}}}
And the output:
{{{
in MainWinController.initWithWindow
in SourcePaneController.init
testSPC:
#<SourcePaneController:0x2003df0a0>
in SourcePaneController.init
@testSPC_iv:
nil
testInt:
3
@testInt_iv:
nil
Instance variables are :
[]
}}}
As can be seen, the calls to my other class's initializer are working, but
it's not getting assigned to the instance variable.
A potentially revealing error occurred when I mistyped one of my test
variable names. This is what happens after ' @testSPC_iv = nothing'
(where 'nothing' is an unassigned variable) :
{{{
2009-10-09 12:22:01.975 resynch[1015:a0f] +[MainWinController
_getValue:forKey:]: unrecognized selector sent to class 0x200238940
2009-10-09 12:22:01.978 resynch[1015:a0f] +[MainWinController
_getValue:forKey:]: unrecognized selector sent to class 0x200238940
2009-10-09 12:22:01.979 resynch[1015:a0f] An uncaught exception was raised
2009-10-09 12:22:01.979 resynch[1015:a0f] +[MainWinController
_getValue:forKey:]: unrecognized selector sent to class 0x200238940
2009-10-09 12:22:01.981 resynch[1015:a0f] *** Terminating app due to
uncaught exception 'NSInvalidArgumentException', reason:
'+[MainWinController _getValue:forKey:]: unrecognized selector sent to
class 0x200238940'
*** Call stack at first throw:
(
0 CoreFoundation 0x00007fff83dbf5a4
__exceptionPreprocess + 180
1 libobjc.A.dylib 0x00007fff87c7c313
objc_exception_throw + 45
2 CoreFoundation 0x00007fff83e18330
__CFFullMethodName + 0
3 CoreFoundation 0x00007fff83d9230f
___forwarding___ + 751
4 CoreFoundation 0x00007fff83d8e458
_CF_forwarding_prep_0 + 232
5 CoreFoundation 0x00007fff83d53ffd
CFDictionaryGetValueIfPresent + 93
6 libmacruby.dylib 0x000000010010b4ee
classname + 126
7 libmacruby.dylib 0x000000010010b728
rb_class_path + 24
8 libmacruby.dylib 0x000000010010ba3e
rb_obj_classname + 46
9 libmacruby.dylib 0x000000010006f89f
rb_any_to_string + 15
10 libmacruby.dylib 0x000000010015f697
rb_vm_call_with_cache2 + 4663
11 libmacruby.dylib 0x0000000100121199
rb_funcall + 425
12 libmacruby.dylib 0x000000010015f697
rb_vm_call_with_cache2 + 4663
13 libmacruby.dylib 0x0000000100121199
rb_funcall + 425
14 libmacruby.dylib 0x000000010006a8f6
rb_inspect + 22
15 libmacruby.dylib 0x000000010003e2a1
name_err_mesg_to_str + 161
16 libmacruby.dylib 0x0000000100162d6f
rb_vm_call + 4783
17 libmacruby.dylib 0x0000000100070df9
rb_convert_type + 121
18 libmacruby.dylib 0x00000001000f010b
rb_string_value + 107
19 libmacruby.dylib 0x000000010003c62e
name_err_to_s + 78
20 libmacruby.dylib 0x000000010015f697
rb_vm_call_with_cache2 + 4663
21 libmacruby.dylib 0x0000000100121199
rb_funcall + 425
22 libmacruby.dylib 0x0000000100162d6f
rb_vm_call + 4783
23 libmacruby.dylib 0x0000000100175e23
rb_vm_print_current_exception + 99
24 libmacruby.dylib 0x0000000100176108
macruby_main + 392
25 resynch 0x0000000100000e3e main +
40
26 resynch 0x0000000100000ad8 start +
52
27 ??? 0x0000000000000001 0x0 + 1
)
terminate called after throwing an instance of 'NSException'
Program received signal: “SIGABRT”.
}}}
--
Ticket URL: <http://www.macruby.org/trac/ticket/374>
MacRuby <http://macruby.org/>
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