XQuilla/include/xqilla/runtime/EmptyResult.hpp

/*
 * Copyright (c) 2001, 2008,
 *     DecisionSoft Limited. All rights reserved.
 * Copyright (c) 2004, 2018 Oracle and/or its affiliates. All rights reserved.
 *     
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef _EMPTYRESULT_HPP
#define _EMPTYRESULT_HPP

#include <xqilla/runtime/ResultImpl.hpp>

class XQILLA_API EmptyResult : public ResultImpl
{
public:
  EmptyResult(const LocationInfo *o);

  Item::Ptr next(DynamicContext *context);

  virtual Sequence toSequence(DynamicContext *context);
  virtual void toResultBuffer(unsigned int readCount, ResultBuffer &buffer);
  virtual void skip(unsigned count, DynamicContext *context);
};

#endif