//===- AttributeSet.h -----------------------------------------------------===//
//
//                     The MCLinker Project
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef MCLD_MC_ATTRIBUTESET_H_
#define MCLD_MC_ATTRIBUTESET_H_
#include "mcld/Support/Compiler.h"

#include <vector>

namespace mcld {

class Attribute;

/** \class AttributeSet
 *  \brief AttributeSet is a set of Attribute.
 *
 *  Clients delegates Attributes to AttributeSet. AttributeSet deletes delegated
 *  Attributes during destruction.
 */
class AttributeSet {
 private:
  typedef std::vector<Attribute*> AttrSet;

 public:
  typedef AttrSet::iterator iterator;
  typedef AttrSet::const_iterator const_iterator;

 public:
  AttributeSet(unsigned int pNum, const Attribute& pPredefined);

  ~AttributeSet();

  // -----  iterators  ----- //
  const_iterator begin() const { return m_AttrSet.begin(); }
  iterator begin() { return m_AttrSet.begin(); }
  const_iterator end() const { return m_AttrSet.end(); }
  iterator end() { return m_AttrSet.end(); }

  // exists- return the recorded attribute whose content is identical to the
  // input attribute.
  Attribute* exists(const Attribute& pAttr) const;

  // record - record the attribute no mater if it has been recorded.
  void record(Attribute& pAttr);

 private:
  AttrSet m_AttrSet;
  const Attribute& m_Predefined;

 private:
  DISALLOW_COPY_AND_ASSIGN(AttributeSet);
};

}  // namespace mcld

#endif  // MCLD_MC_ATTRIBUTESET_H_