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2011-06-17T19:10:42.227
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2011-06-17T20:00:54.717
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2011-06-17T20:00:54.717
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Alright so <a href="http://www.c-sharpcorner.com/UploadFile/b942f9/5950/" rel="nofollow">mix-ins through extension methods</a> are going to be my preferred route. I couldn't figure out how to use dynamic proxies in vb.net (seemed to require libraries with lots of documentation that didn't cover specifically what I needed). Dynamic proxies also seems to be a bit dirtier of a solution than using extension methods. Composition would have been what I defaulted to if the previous two didn't work. So one problem with extension methods, is that the code gets a little dirtier if you want to hold variables. Not much though. Another problem is that all the extension methods must be defined in modules, so the code might look a little goofy to a new eye. I will solve this by defining my interface and module with the corresponding extension method in the same file. finally, here's some sample vb.net code if you don't want to see a full fledged example through the link. <pre><code>Imports System.Runtime.CompilerServices 'for extension methods Public Interface ISword End Interface Public Interface IThrowingStar End Interface Module ExtensionMethods <Extension()> Public Sub swingSword(ByVal hasASword As ISword) Console.WriteLine("Sword has been swung") End Sub <Extension()> Public Sub throwStar(ByVal hasAStar As IThrowingStar) Console.WriteLine("Star has been thrown") End Sub End Module Public Class RedNinja Inherits Ninja Implements IThrowingStar, ISword Public Sub New() End Sub End Class Public MustInherit Class Ninja private curHealth as Integer Public Sub New() curHealth = 100 End Sub Public Function getHP() As Integer Return curHealth End Function End Class Module Module1 Sub main() Console.WriteLine("Type any character to continue.") Console.ReadKey() Dim a As New RedNinja a.swingSword() 'prints "Sword has been swung" a.throwStar() 'prints "Star has been thrown" Console.WriteLine("End of program - Type any key to exit") Console.ReadKey() End Sub End Module </code></pre>
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