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POTrying to add entries in NSArray to NSDictionary, but values in NSDictionary are getting deallocated
 

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  1. POTrying to add entries in NSArray to NSDictionary, but values in NSDictionary are getting deallocated
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    <p>I have three Deck Objects which are mostly just wrappers around NSArray objects containing Card objects. Initially, all the Card objects are in deck1, and eventually move through deck2 and deck3.</p> <p>I also have an NSDictionary object that maps NSString objects to Card objects. I use the cards in deck1 to build this lookup table at the beginning of the game like this...</p> <pre><code>-(NSDictionary *)buildLookupTable { NSMutableDictionary *lookup = [[NSMutableDictionary alloc] init]; for (Card *card in self.cards) { NSString *lookupCode = [self buildCode:card]; [lookup setObject:card forKey:lookupCode]; } return lookup; } </code></pre> <p>I then pass the NSDictionary and the Decks to a layer object, but when I attempt to lookup a given Card based on a NSString, I get "-[CFString hash]: message sent to deallocated instance", but I can easily find the Card I'm looking for, not deallocated, in deck1 or deck2.</p> <p>The NSString I'm using as a key to retrieve the desired value isn't deallocated, nor is the NSDictionary itself. I have even iterated over the return from the NSDictionary object's allValues method, and none of those are deallocated either. </p> <p>What other deallocated objects could there be?</p> <p>Edit-version2: I've narrowed it down a bit.</p> <p>In the lookup code this works</p> <pre><code>NSString *key = @"4-0"; //(NSString *)sprite.userData; return [self.cardLookup objectForKey:key]; </code></pre> <p>but this doesn't</p> <pre><code>NSString *key = (NSString *)sprite.userData; // value is @"4-0" return [self.cardLookup objectForKey:key]; </code></pre> <p>In the debugger sprite.userData looks fine.</p> <p>sprite.userData is defined in the Card class buildSprite method as...</p> <pre><code>sprite.userData = [NSString stringWithFormat:@"%i-%i",self.x, self.y]; </code></pre> <p>It looks like calling copyWithZone on key doesn't work (like it would for any other NSString).</p>
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    1. PTQuestion
    1. USuser467384
    1. USuser467384
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    1. COIt does this already, there is an error in your code somewhere (not the posted code). Also specify if you are using ARC.
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      1. POTrying to add entries in NSArray to NSDictionary, but values in NSDictionary are getting deallocated
      1. USJoe
    2. COthe posted code is fine
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      1. POTrying to add entries in NSArray to NSDictionary, but values in NSDictionary are getting deallocated
      1. USDaij-Djan
    3. COyou should post the other parts of your code that may be causing the bug
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      1. POTrying to add entries in NSArray to NSDictionary, but values in NSDictionary are getting deallocated
      1. USGabriele Petronella
 

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