Dynamic logger experiment. Allows writing descriptive log calls without the need to implement them by hand.

AutoLogger.cs

public class AutoLogger : DynamicObject
{
	private readonly Action<string> _logMethod;

	const string SplitterName = "splitNameBy";

	public AutoLogger(Action<string> logMethod)
	{
		_logMethod = logMethod;
	}

	public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result)
	{
		result = null;
		
		var argCount = binder.CallInfo.ArgumentCount;
		var namedCount = binder.CallInfo.ArgumentNames.Count;
		
		var paddedNames = Enumerable
			.Repeat<string>("param", argCount - namedCount)
			.Select((n, i) => string.Intern(n + i))
			.Concat(binder.CallInfo.ArgumentNames);
		
		var argsWithNames = args
			.Zip(paddedNames, (arg, name) => new {Value = arg, Name = name})
			.ToArray();
				
		var splitter = argsWithNames.FirstOrDefault(x => x.Name == SplitterName);
		
		var messageText = new StringBuilder(splitter != null
			? SplitJoinDefault(splitter.Value, binder.Name)
			: SplitJoinCamelCase(binder.Name));
		
		foreach (var arg in argsWithNames)
		{
			if (arg.Name == SplitterName) { continue; }
			
			messageText.AppendLine().AppendFormat("{0}: {1}", arg.Name, arg.Value.ToString());
		}
		
		_logMethod(messageText.ToString());
		
		return true;
	}
	
	private string SplitJoinCamelCase(string source)
	{
		return Regex.Replace(source, @"\B[A-Z]", m => " " + m.ToString().ToLower());
	}
	
	private string SplitJoinDefault(object splitter, string source)
	{
		if (splitter is char[])
		{
			return string.Join(" ", source.Split((char[])splitter));
		}
		else
		{
			throw new InvalidOperationException(SplitterName + " must be of type \"char[]\"!");
		}
	}
}

Usage.cs

dynamic log = new AutoLogger(str => str.Dump());

try
{
	log.BeforeTheBoom();
	throw new Exception("Boom!");
}
catch (Exception ex)
{
	log.FooABCHappensEveryTime(5, ex, boo: 1);
}

/* Outputs:

Before the boom
Foo a b c happens every time
param0: 5
param1: System.Exception: Boom!
   at UserQuery.Main() in c:\Users\jb185293\AppData\Local\Temp\LINQPad\_zaorlgtw\query_crclxx.cs:line 36
boo: 1

*/