Cocoa bindings call valueForKey: instead of valueForKeyPath:

I have an NSPopUpButton that is attached to a subclass, with the following overridden methods:

- (id)valueForKeyPath:(NSString *)keyPath {
    NSLog(@"valueForKeyPath: %@", keyPath);
    if ([keyPath hasSuffix:@"availableVoices.name"]) {
        return self.availableVoiceNames;
    } else {
        return [super valueForKeyPath:keyPath];
    }
}

- (id)valueForKey:(NSString *)key {
    NSLog(@"valueForKey: %@", key);
    return [super valueForKey:key];
}

      

        
        
        
      

    

The links are as follows:

• Content -> Object .availableVoices
• Content Values ​​-> Object.availableVoices.name

Instead of being called [Object valueForKeyPath:@"availableVoices.name"]

, valueForKey:

called for every key in a key. availableVoices

has no definition for name

, so it crashes.

Shouldn't you valueForKey:

be called after valueForKeyPath:

, if at all?