lazy load 5

gistfile1.cs

public override bool CompileTimeValidate(PostSharp.Reflection.LocationInfo locationInfo)
{
    if(!locationInfo.LocationType.IsInterface)
    {
        Message.Write(SeverityType.Error, "001", "LazyLoad can only be used on Interfaces in {0}.{1}", locationInfo.DeclaringType, locationInfo.Name);
        return false;
    }

    _type = DependencyMap.GetConcreteType(locationInfo.LocationType);
    if(_type == null)
    {
        Message.Write(SeverityType.Error, "002", "A concrete type was not found for {0}.{1}", locationInfo.DeclaringType, locationInfo.Name);
        return false;
    }
    return true;
}