1//===- NullFragment.h -----------------------------------------------------===// 2// 3// The MCLinker Project 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9#ifndef MCLD_FRAGMENT_NULLFRAGMENT_H 10#define MCLD_FRAGMENT_NULLFRAGMENT_H 11 12#include <mcld/Fragment/Fragment.h> 13 14namespace mcld { 15 16class SectionData; 17 18/** \class NullFragment 19 * \brief NullFragment is a kind of MCFragment that presents the "end fragment" 20 * referenced by some special symbols 21 */ 22class NullFragment : public Fragment 23{ 24public: 25 NullFragment(SectionData* pSD = NULL); 26 27 /// size - 28 size_t size() const { return 0x0; } 29 30 static bool classof(const Fragment *F) 31 { return F->getKind() == Fragment::Null; } 32 33 static bool classof(const NullFragment *) 34 { return true; } 35}; 36 37} // namespace of mcld 38 39#endif 40 41