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POIs it legal to extend the Class class?
 

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    <p>I've been writing a system that <strong>at runtime</strong> generates some templates, and then generates some objects based on those templates. I had the idea that the templates could be extensions of the Class class, but that resulted in some magnificent errors:</p> <pre><code>VerifyError: Error #1107: The ABC data is corrupt, attempt to read out of bounds. </code></pre> <p>What I'm wondering is if subclassing Class is even possible, if there is perhaps some case where doing this would be appropriate, and not just a gross misuse of OOP. I believe it should be possible, as ActionScript allows you to create variables of the Class type. This use is described in the <a href="http://help.adobe.com/en_US/AS3LCR/Flash_10.0/Class.html" rel="nofollow noreferrer">LiveDocs entry for Class</a>, yet I've seen no mentions of subclassing Class.</p> <p>Here's a pseudocode example:</p> <pre><code>class Foo extends Class var A:Foo = new Foo(); // A is a class trace(A is Class); // true, right? var b = new A(); // b is an instance of class A </code></pre> <p>I have no idea what the type of <code>b</code> would be. Would it be this?</p> <pre><code>trace(b is A); // true? </code></pre> <p>But then, could you type the variable <code>b</code> to type <code>A</code>, as in <code>var b:A = new A();</code>, even though <code>A</code> doesn't exist until runtime? I have read that this is not possible as <code>A</code> is not statically resolvable, but I am doing my own tests to explore this possibility.</p> <p>Ultimately, the purpose is to generate new classes <strong>at runtime</strong>, and to then create instances of those classes.</p> <p>In summary: can you subclass the Class class? If so, how can you do it without errors, and what type are the instances of the instances of the Class subclass?</p>
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    1. COThe main question is: Is Class a Class?
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    2. COWell, I'm actually asking if you can subclass the Class class, or if that's a misuse of the class model. I already know that Class is a class; here's the Class class livedoc: http://help.adobe.com/en_US/AS3LCR/Flash_10.0/Class.html
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    3. COa instanceof b // true
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