Boo.Lang.Compiler.Steps.ProcessMethodBodies.BindEventSubscription C# (CSharp) Метод

        void BindEventSubscription(BinaryExpression node)
        {
            IEntity entity = GetEntity(node.Left);
            if (entity.IsAmbiguous())
            {
                IList found = ((Ambiguous) entity).Select(IsPublicEvent);
                if (found.Count != 1)
                {
                    Error(node);
                    return;
                }

                entity = (IEntity) found[0];
                Bind(node.Left, entity);
            }

            IEvent eventInfo = (IEvent)entity;
            IType rtype = GetExpressionType(node.Right);
            if (!AssertDelegateArgument(node, eventInfo, rtype))
            {
                Error(node);
                return;
            }

            BindExpressionType(node, TypeSystemServices.VoidType);
        }