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 
14 namespace mcld {
15 
16 class 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  */
22 class NullFragment : public Fragment {
23  public:
24   explicit NullFragment(SectionData* pSD = NULL);
25 
26   /// size -
size()27   size_t size() const { return 0x0; }
28 
classof(const Fragment * F)29   static bool classof(const Fragment* F) {
30     return F->getKind() == Fragment::Null;
31   }
32 
classof(const NullFragment *)33   static bool classof(const NullFragment*) { return true; }
34 };
35 
36 }  // namespace mcld
37 
38 #endif  // MCLD_FRAGMENT_NULLFRAGMENT_H_
39