コード例 #1
0
        public override DbExpression Visit(DbQuantifierExpression expression)
        {
            EntityUtil.CheckArgumentNull(expression, "expression");

            DbExpression result = expression;

            DbExpressionBinding input     = this.VisitExpressionBindingEnterScope(expression.Input);
            DbExpression        predicate = this.VisitExpression(expression.Predicate);

            this.ExitScope();

            if (!object.ReferenceEquals(expression.Input, input) ||
                !object.ReferenceEquals(expression.Predicate, predicate))
            {
                if (DbExpressionKind.All == expression.ExpressionKind)
                {
                    result = CqtBuilder.All(input, predicate);
                }
                else
                {
                    Debug.Assert(expression.ExpressionKind == DbExpressionKind.Any, "DbQuantifierExpression had ExpressionKind other than All or Any?");
                    result = CqtBuilder.Any(input, predicate);
                }
            }
            NotifyIfChanged(expression, result);
            return(result);
        }