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pattern_based_code_generator.hh

/*
*  Name:      pattern_based_code_generator.hh
*  Author:    Rafael Jesus Alcantara Perez
*  Summary:   Pattern based code generator       
*  Date:      $Date: 2003/04/14 00:18:32 $
*  Revision:  $Revision: 1.1 $
*
*  Copyright (C) 1994-2002  Rafael Jesus Alcantara Perez <rafa@dedalo-ing.com>
*
*  This program is free software; you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation; either version 2 of the License, or
*  (at your option) any later version.
*
*  This program is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU General Public License for more details.
*
*  You should have received a copy of the GNU General Public License
*  along with this program; if not, write to the Free Software
*  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
*  MA 02111-1307, USA.
*/

#ifndef _MPCL_TEXT_CODEGEN_PATTERN_BASED_CODE_GENERATOR__
#define _MPCL_TEXT_CODEGEN_PATTERN_BASED_CODE_GENERATOR__

#include "../../io/streamable.hh"
#include "../../io/streamable_map.hh"
#include "../string.hh"
#include "clause_body_string.hh"
#include "defs.hh"
#include "instruction_body.hh"
#include "instruction_tag_string.hh"


namespace mpcl
{

  namespace text
  {

    namespace codegen
    {

      using io::IStreamable;
      using io::TStreamableMap;

      class TPatternBasedCodeGenerator: public IStreamable<>
      {

        private:

          typedef
            TStreamableMap<TInstructionTagString, TInstructionBody>
            TInstructionMap;

          TInstructionMap   tInstructionMap;

          TStringToVariableMap   tVariableMap;

          TString   yCdmlPath;

          TString   yDescription;

          TString   yInherit;

          TString   yPublic;

          TString   ySystem;

          TString   yTarget;


        public:

          //
          //  C O N S T R U C T O R S
          //

          TPatternBasedCodeGenerator ( const TString& rkySOURCE_CDML_FILE ,
                                       const TString& rkyCDML_PATH        );

          TPatternBasedCodeGenerator (void) :
            IStreamable<>   ()              ,
            tInstructionMap ()              ,
            tVariableMap    ()              ,
            yCdmlPath       ()              ,
            yDescription    ()              ,
            yInherit        ()              ,
            yPublic         ()              ,
            ySystem         ()              ,
            yTarget         ()
          {
            initConstants();
          }

          void clear (void);

          void clearCode (void);

          void compile (void);

          void loadFrom (const TString& rkySOURCE_CDML_FILE);

          void preprocessVariables (void);

          void setDescription (const char* pkcSOURCE_DESCRIPTION);

          void setCdmlPath (const TString& rkyCDML_PATH);


        protected:

          //
          //  C O N S T R U C T O R S
          //

          void initConstants (void) const;

          void inheritFrom (const TString& rkySOURCE_CDML_FILE);

          void read (std::basic_istream<char_type, traits_type>& rtSOURCE_STREAM);


        public:

          //
          //  S E L E C T O R S
          //

          const TStringToVariableMap& variables (void) const;

          const TClauseBodyString& codePatternFor ( const char* pkcINSTRUCTION_NAME ,
                                                    const char* pkcCLAUSE_NAME      ) const;

          TInstructionBody& instruction (const char* pkcINSTRUCTION_NAME);

          const TInstructionBody& instruction (const char* pkcINSTRUCTION_NAME) const;

          bool existsVariable (const char* pkcVARIABLE_NAME) const;

          bool existsClause (const char* pkcINSTRUCTION_NAME, const char* pkcCLAUSE_NAME) const;

          const TInstructionBody& operator [] (const char* pkcINSTRUCTION_NAME) const
          {
            return instruction (pkcINSTRUCTION_NAME);
          }

          TInstructionBody& operator [] (const char* pkcINSTRUCTION_NAME)
          {
            return instruction (pkcINSTRUCTION_NAME);
          }


        protected:

          //
          //  S E L E C T O R S
          //

          void write (std::basic_ostream<char_type, traits_type>& rtTARGET_OSTREAM) const;

      };  // class TPatternBasedCodeGenerator

    }  // namespace codegen

  }  // namespace text

}  // namespace mpcl


#endif  // not _MPCL_TEXT_CODEGEN_PATTERN_BASED_CODE_GENERATOR__

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