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POMovieClip isn't removed from Dictionary
 

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  1. POMovieClip isn't removed from Dictionary
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    <p>I have a Dictionary where I hold data for movieclips, and I want the data to be garbage collected if I stop using the movieclips. I'm using the weak keys parameters, and it works perfectly with other data, however I've run into a problem. </p> <p>This code works great:</p> <pre><code>var mc = new MovieClip(); var dic = new Dictionary(true); dic[mc] = 12; mc = null; System.gc(); System.gc(); for (var obj in dic) trace(obj); //this doesn't execute </code></pre> <p>But when I actually use the movieclip, it stops working:</p> <pre><code>var mc = new MovieClip(); var dic = new Dictionary(true); dic[mc] = 12; addChild(mc); removeChild(mc); mc = null; System.gc(); System.gc(); for (var obj in dic) trace(obj); //this prints [object Movieclip] </code></pre> <p>Why does this happen? Is it something I'm doing wrong? Is there a workaround?</p> <p>Edit: I know that for this specific example I can use <code>delete dic[mc]</code>, but of course this is a simplified case. In general, I don't want to manually have to remove the movieclip from the dictionary, but it should be automatic when I don't reference it anymore in the rest of the application.</p> <p>Edit2: I tried testing what Aaron said, and came up with just weird stuff... just iterating the dictionary (without doing anything) changes the behaviour:</p> <pre><code>var mc = new MovieClip(); var dic = new Dictionary(true); dic[mc] = 12; addChild(mc); removeChild(mc); mc = null; for (var objeto in dic) {} // &lt;-- try commenting out this line addEventListener('enterFrame', f); // I print the contents every frame, to see if // it gets removed after awhile function f(evento) { System.gc(); System.gc(); for (var objeto in dic) trace(objeto); } </code></pre> <p>This keeps printing [object Movieclip] every frame, unless I comment out the indicated line, where it doesn't print anything.</p>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
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    1. USTurambar
    1. USTurambar
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    2. PO
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      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
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      1. VTUpMod
    1. COWell, so I don't think this fixes your reference count issue... You are setting the object to null, right after removing it. If the reference count gets decremented later, it might cause some strange behavior if the object is already null...?
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      1. POMovieClip isn't removed from Dictionary
      1. USAaron H.
    2. COIn your second example the line you comment out creates a new reference to mc (objecto) that you forget to set to null. try: for(var objecto in dic){};objecto = null;
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      1. USJames Fassett
    3. COThat was it! Thanks!
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      1. USTurambar
 

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