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fix for KVO: removing the last observer would trigger a setObservationInfo:nil,

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which would access the already-released observationInfo dictionary
This commit is contained in:
Johannes Fortmann 2008-05-17 13:08:22 +00:00
parent 22bbe557d3
commit eadf769593
1 changed files with 5 additions and 5 deletions
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10
Foundation/NSKeyValueCoding/NSKeyValueObserving.m
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@ -154,8 +154,8 @@ static NSLock *kvoLock=nil;
[keyPath _KVC_partBeforeDot:&key afterDot:&remainingKeyPath];
// now remove own observer
NSMutableDictionary* dict=[self observationInfo];
NSMutableArray *observers=[dict objectForKey:key];
NSMutableDictionary* observationInfo=[self observationInfo];
NSMutableArray *observers=[observationInfo objectForKey:key];
NSEnumerator *en=[observers objectEnumerator];
_NSObservationInfo *info;
@ -167,12 +167,12 @@ static NSLock *kvoLock=nil;
[observers removeObject:info];
if(![observers count])
{
[dict removeObjectForKey:key];
[observationInfo removeObjectForKey:key];
}
if(![dict count])
if(![observationInfo count])
{
[dict release];
[self setObservationInfo:nil];
[observationInfo release];
}
if(remainingKeyPath)