I may have come across a KVO-related bug in MacRuby. In my project I
have an Objective-C subclass of NSObject that uses @property and
@synthesize to set up instance variable accessors.
In the init method I set a key-value observer for one of those
variables ('text') using:
[self addObserver:self forKeyPath:@"text"
options:NSKeyValueObservingOptionNew context:NULL];
The class also has the required observing method:
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object
change:(NSDictionary *)change context:(void *)context
When I set a new value for 'text' from Objective-C code using
something like instance.text = @"Hello", the observing method is
called as expected and everything is fine.
When I set a new value from MacRuby code using
instance.setText("Hello"), it also works fine.
However, when I set a new value from MacRuby code using dot notation,
e.g. instance.text = "Hello", it fails and the debugger is activated.
The error log is lengthy, but it begins with these statements:
warning: Could not find object file "/private/tmp/trunk/array.o" - no
debug information available for "array.c".
warning: Could not find object file "/private/tmp/trunk/bignum.o" - no
debug information available for "bignum.c".
Assigning values to the other instance variables of the Obj-C class
works fine from MacRuby using dot notation, but those other variables
do not have observers assigned. In fact, if I remove the
'observeValue...' method from the Obj-C class, the dot notation
assignment works fine again for that 'text' variable.
Sure seems like a bug to me. Any ideas?
Jim
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