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Determine if the class that will be created is a children of another

开发者 https://www.devze.com 2023-02-07 20:37 出处:网络
For this example, I will use 2 classes, Entity and CSpawner. CSpawner is a children of Entity. I want to perform the following condition:

For this example, I will use 2 classes, Entity and CSpawner. CSpawner is a children of Entity.

I want to perform the following condition:

if((new CSpawner()) is Entity)

It works just like intended.

But I want to do this test, without creating a new CSpawner object, something like this:

if(CS开发者_开发知识库pawner is Entity)

But it doesn't work, because CSpawner is a Class.

How do I perform that kind of conditional without creating a new CSpawner object?


Take a look at the describeType() function found under the flash.util package. It provides the kind of data you're looking for (both for instance objects and class objects).

http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/utils/package.html#describeType()


http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/utils/package.html#getQualifiedSuperclassName() is what you are looking for. It returns the Super class name You can check the other methods from the utils package - this is ActionScript's basic reflection :)

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