[Mono-bugs] [Bug 359733] Generic Extension methods with constraints on the generic type don' t compile

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Sun Feb 10 10:50:53 EST 2008


https://bugzilla.novell.com/show_bug.cgi?id=359733

User atsushi at ximian.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=359733#c5





--- Comment #5 from Atsushi Enomoto <atsushi at ximian.com>  2008-02-10 08:50:53 MST ---
I've cooked a similar test case, which actually compiled fine. So it does not
happen when the extension type is in the same assembly (i.e. likely reference
resolution issue).

using System;
using System.Collections.Generic;
using System.Linq;
using System.Xml;
using System.Xml.Linq;

public class Test
{
        public static void Main ()
        {
                XDocument doc = XDocument.Parse
("<root><foo/><bar/><baz/></root>");
                // replace it with Remove<XNode>() and it will fail.
                doc.Root.Nodes ().Hooray<XNode> ();
        }
}

public static class MyExtensions
{
        public static void Hooray<T> (this IEnumerable<T> source) where T :
XNode
        {
                foreach (T item in source)
                        item.Remove ();
        }
}


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