问题
Has anyone ever tried to generate extension methods using System.CodeDom under .NET 4.0? There doesn't seem to be any way to specify a CodeMemberMethod or CodeParameterDeclarationExpression as being an extension method/parameter.
If this isn't possible, are there any good workarounds?
Thanks
回答1:
Apparently CodeDom isn't able to generate the correct code for the first parameter of an extension method, but you can cheat it like this:
var param = new CodeParameterDeclarationExpression("this string", "s");
It will blissfully ignore the fact that "this string" is not a valid type...
回答2:
See Extension Attribute
Quote:
In Visual Basic, you should use this attribute to create an extension method. For more information, see Extension Methods (Visual Basic).
In C#, you do not need to use this attribute; you should use the this (C# Reference) modifier for the first parameter to create an extension method. The compiler automatically emits ExtensionAttribute for extension methods. For more information, see Extension Methods (C# Programming Guide).
If you are writing a compiler that supports extension methods, your compiler should emit this attribute on each extension method and on each class and assembly that contains one or more extension methods.
来源:https://stackoverflow.com/questions/6011269/generate-extension-methods-using-system-codedom