XQuilla/include/xqilla/operators/Range.hpp

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/*
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* Copyright (c) 2001-2008
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* DecisionSoft Limited. All rights reserved.
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* Copyright (c) 2004-2008
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* Oracle. All rights reserved.
*
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* 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
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*
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* 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.
*
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* $Id: Range.hpp 659 2008-10-06 00:11:22Z jpcs $
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*/
#ifndef _RANGE_HPP
#define _RANGE_HPP
#include <xqilla/framework/XQillaExport.hpp>
#include <xqilla/ast/XQOperator.hpp>
class Numeric;
/** Range operator function*/
class XQILLA_API Range : public XQOperator
{
public:
static const XMLCh name[];
///Constructor
Range(const VectorOfASTNodes &args, XPath2MemoryManager* memMgr);
virtual ASTNode* staticResolution(StaticContext *context);
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virtual ASTNode *staticTypingImpl(StaticContext *context);
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Result createResult(DynamicContext* context, int flags=0) const;
private:
class RangeResult : public ResultImpl
{
public:
RangeResult(const Range *op, DynamicContext *context);
Item::Ptr next(DynamicContext *context);
private:
const Range *_op;
Numeric::Ptr _last;
Numeric::Ptr _step;
Numeric::Ptr _end;
};
};
#endif // _RANGE_HPP