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Another bit of magic with static reflection. Refer to my for a little more explanation of static reflection, and a sweet implementation (IMO) of INotifyPropertyChanged using static reflection.

In the past several years, [online viagra gel to buy] on several projects online viagra gel to buy, I've seen many lines of code at the beginning of public interface methods that look like:

    public class WebServer
    {
        public void BootstrapServer(int port,  string rootDirectory,  string serverName)
        {
            if( rootDirectory == null )
            {
                throw new ArgumentNullException( "rootDirectory" );
            }
            if( serverName == null )
            {
                throw new ArgumentNullException( "serverName" );
            }

            // Bootstrap the server
        }
    }

I realize the need, since we don't have real in . NET (yet), but I REALLY dislike this and feel it to be a pretty bad .   It feels , obscures essence, and I just plain don't like it. ;)

So, here is an implementation that makes it tolerable, if not enjoyable (because of the coolness of using static reflection), because I think it actually adds to the essence and overall readability of a given method.

This is what the above code can now look like:

    public class WebServer
    {
        public void BootstrapServer( int port,  string rootDirectory,  string serverName )
        {
            Guard. IsNotNull( () => rootDirectory );
            Guard. IsNotNull( () => serverName );

            // Bootstrap the server
        }
    }

And here is the implementation:

    public static class Guard
    {
        public static void IsNotNull<T>(Expression<Func<T>> expr)
        {
            // expression value != default of T
            if (!expr. Compile()(). Online viagra gel to buy equals(default(t)))
                return;

       online viagra gel to buy      var param = (memberexpression) expr. Body;
            throw new ArgumentNullException(param. Member. Name);
        }
    }

Lovin it!  Hope you do too.


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