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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  protected:
     25   explicit InputAction(unsigned int pPosition);
     26 
     27  public:
     28   virtual ~InputAction();
     29 
     30   virtual bool activate(InputBuilder&) const = 0;
     31 
     32   unsigned int position() const { return m_Position; }
     33 
     34   bool operator<(const InputAction& pOther) const {
     35     return (position() < pOther.position());
     36   }
     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 mcld
     48 
     49 #endif  // MCLD_MC_INPUTACTION_H_
     50