Posts Tagged inheritance

From AS3 to C#, Part 2: Extending Classes and Implementing Interfaces

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Let’s continue the From AS3 to C# series from last time by continuing to investigate C# classes from an AS3 developer’s point of view. Today’s article will cover class inheritance, interface implementing, and interface inheritance.

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The Right Way to Check An Object’s Type

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There are lots of ways to check the type of an object in AS3. These include the is operator, the deprecated instanceof operator, the constructor field, and a combination of getQualifiedClassName and getDefinitionByName. Which is fastest, cleanest, and most effective? Today’s article puts them all to the test to find out!

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Better Ways To Check Class Inheritance

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If you want to check if one class inherits another without actually having instances of those classes, you may have read my article on Checking Class Inheritance. However, as the many comments quickly pointed out, the methods of checking this may have some flaws. There were also additional methods posted in the comments that should be added and tested. Today I’m adding them, testing them, and checking all of their validity to find the ultimate approach to check class inheritance.

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Checking Class Inheritance

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I recently received a tip about a thread discussing an interesting problem: how to tell if one Class object represents a class that subclasses another Class object. If you had an instance of the class, you could simply use the is or instanceof keywords, but that won’t do here. Today’s article shows how to solve this tricky problem.

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Runnables as Function Pointers

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Last Friday’s article expressed some longing for C-style function pointers. It attempted to use AS3’s Namespace class to fake a function pointer. Unfortunately, this resulted in far slower code than simple direct access. Today’s article shows a technique that actually results in far faster code!

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