include/mcld/Script/RpnEvaluator.h

//===- RpnEvaluator.h -----------------------------------------------------===//
//
//                     The MCLinker Project
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef MCLD_SCRIPT_RPNEVALUATOR_H_
#define MCLD_SCRIPT_RPNEVALUATOR_H_

#include <cstdint>

namespace mcld {

class Module;
class RpnExpr;
class TargetLDBackend;

/** \class RpnEvaluator
 *  \brief RpnEvaluator evaluate a rpn expression
 */
class RpnEvaluator {
 public:
  RpnEvaluator(const Module& pModule, const TargetLDBackend& pBackend);

  // evaluate a valid expression and set the value in the second parameter
  bool eval(const RpnExpr& pExpr, uint64_t& pResult);

 private:
  const Module& m_Module;
  const TargetLDBackend& m_Backend;
};

}  // namespace mcld

#endif  // MCLD_SCRIPT_RPNEVALUATOR_H_