/*
 * Copyright (c) 2001-2008
 *     DecisionSoft Limited. All rights reserved.
 * Copyright (c) 2004-2008
 *     Oracle. 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.
 *
 * $Id: ConstantFoldingFunction.hpp 659 2008-10-06 00:11:22Z jpcs $
 */

#ifndef _CONSTANTFOLDINGFUNCTION_HPP
#define _CONSTANTFOLDINGFUNCTION_HPP

#include <xqilla/framework/XQillaExport.hpp>
#include <xqilla/ast/XQFunction.hpp>
#include <xqilla/runtime/Sequence.hpp>

class XQILLA_API ConstantFoldingFunction : public XQFunction
{

public:
  ConstantFoldingFunction(const XMLCh* name, unsigned int argsFrom, unsigned int argsTo, const char* paramDecl, const VectorOfASTNodes &args, XPath2MemoryManager* memMgr);
  virtual ~ConstantFoldingFunction();

  /**
   * Called during static analysis to determine if statically correct.
   * Performs constant folding if the arguments to the function are
   * all constant.
   */
  virtual ASTNode* staticResolution(StaticContext *context);
  virtual ASTNode *staticTypingImpl(StaticContext *context);
};

#endif
