Slow .NET Object Cloner

SlowCloner.cs

public static class SlowCloner
{
	public static T Clone<T>(T val, int depth = 64)
	{
		return (T)CloneNonGeneric(val, typeof(T), depth);
	}
	
	static object CloneNonGeneric(object val, Type type, int depth = 64)
	{
		if (val == null) return null;
		
		switch (Type.GetTypeCode(type))
		{
			case TypeCode.Object:
				return CloneObject(val, type, depth);
			default:
				// all the other typecodes are immutable anyway
				return val;
		}
	}
	
	static object CloneObject(object val, Type type, int depth)
	{
		var fields = type.GetFields(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public);
		var clone = FormatterServices.GetUninitializedObject(type);
		
		foreach (var fi in fields)
		{
			fi.SetValue(clone, CloneNonGeneric(fi.GetValue(val), fi.FieldType, depth - 1));
		}
		
		return clone;
	}
}