Exemplo n.º 1
0
        public static object DefaultValue(Program program, Schema.ScalarType type)
        {
            // ScalarType level default trigger handlers
            program.Stack.Push(null);
            try
            {
                if (type.HasHandlers())
                {
                    foreach (Schema.EventHandler handler in type.EventHandlers)
                    {
                        if ((handler.EventType & EventType.Default) != 0)
                        {
                            object result = handler.PlanNode.Execute(program);
                            if ((result != null) && (bool)result)
                            {
                                return(program.Stack.Peek(0));
                            }
                        }
                    }
                }
            }
            finally
            {
                program.Stack.Pop();
            }

            if (type.Default != null)
            {
                return(type.Default.Node.Execute(program));
            }
            else
            {
                return(null);
            }
        }