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      1 //===- InputAction.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_MC_INPUTACTION_H
     10 #define MCLD_MC_INPUTACTION_H
     11 
     12 namespace mcld {
     13 
     14 class SearchDirs;
     15 class InputBuilder;
     16 
     17 //===----------------------------------------------------------------------===//
     18 // Base InputAction
     19 //===----------------------------------------------------------------------===//
     20 /** \class InputAction
     21  *  \brief InputAction is a command object to construct mcld::InputTree.
     22  */
     23 class InputAction
     24 {
     25 protected:
     26   explicit InputAction(unsigned int pPosition);
     27 
     28 public:
     29   virtual ~InputAction();
     30 
     31   virtual bool activate(InputBuilder&) const = 0;
     32 
     33   unsigned int position() const { return m_Position; }
     34 
     35   bool operator<(const InputAction& pOther) const
     36   { return (position() < pOther.position()); }
     37 
     38 private:
     39   InputAction();                               // DO_NOT_IMPLEMENT
     40   InputAction(const InputAction& );            // DO_NOT_IMPLEMENT
     41   InputAction& operator=(const InputAction& ); // DO_NOT_IMPLEMENT
     42 
     43 private:
     44   unsigned int m_Position;
     45 };
     46 
     47 } // namespace of mcld
     48 
     49 #endif
     50 
     51