Extension method

Elements Oxygene
1

Hello,
when creating an extension class, the extension class is not defined as static, but the C# documentation indicates that a class implementing extension methods should be static.

2

What do you mean?

I tried:

 extension method String.Test: String;



implementation

extension method String.Test: String;

begin

end;

and got this out of it:

using System;

using System.Runtime.CompilerServices;

using System.Runtime.InteropServices;

namespace issueextmtest
{
    [CompilerGenerated]
    [StructLayout(LayoutKind.Auto, CharSet = CharSet.Auto)]
    public static class __Extensions
    {
        public static string Test(this string self)
        {
            string Result;
            return Result;
        }
    }
}
3

Carlo,
I’m talking about an extension class:

StringExtension = public extension class (String);
public
  method test : String;
end;
4

hrmm it should be sealed. But note that extension classes are not the same as standalone extension methods. They’re an Elements specific feature.

5

Carlo,
from the Elements documentation, I though that defining an extension method inside an extension class would be about the same as defining a stand-alone extension method. The only difference being that we control the name of the defining class, so it is more documentation-friendly.
If it’s not the same, perhaps the documentation should point the differences.