Our AutoMapperProfileConvention. Finds AutoMapper Profiles and checks if they have accessible contstructors. We have been searching for hours why a certain profile was not registered in the AutoMapper configuration until we saw that for some reason it had a private constructor :-)

AutoMapperProfileConvention

/// <summary>
/// Finds all automapper profile type and checks if the profile type has accessible constructors, if not it will throw an exception. 
/// Accesible constructors are needed for IoC.
/// </summary>
public class AutoMapperProfileConvention : IRegistrationConvention
{
	private Func<Type, string> _getName = type => PluginCache.GetPlugin(type).ConcreteKey;
	private readonly Type _pluginType;

	public AutoMapperProfileConvention()
	{
		_pluginType = typeof(Profile);
	}

	public void Process(Type type, Registry registry)
	{
		if (type == _pluginType)
			return;

		if (!type.CanBeCastTo(_pluginType))
			return;

		if (!Constructor.HasConstructors(type))
		{
			throw new InvalidProgramException(String.Format("The profile of type: {0} has no accessible constructor!", type));
		}

		string name = _getName(type);

		registry.AddType(GetLeastSpecificButValidType(_pluginType, type), type, name);
	}

	private Type GetLeastSpecificButValidType(Type pluginType, Type type)
	{
		if (pluginType.IsGenericTypeDefinition)
			return type.FindFirstInterfaceThatCloses(pluginType);
		
		return pluginType;
	}
}

Where is PluginCache defined?