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generator/parser/rpp/pp-macro.h  view on Meta::CPAN

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  copyright notice and this permission notice appear in supporting
  documentation.

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  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
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  AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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*/

#ifndef PP_MACRO_H
#define PP_MACRO_H

//krazy:excludeall=inline

#include <QtCore/QStringList>
#include <QVector>
#include "../indexedstring.h"
#include "../cppparser_export.h"
// #include "appendedlist.h"
// #include <language/editor/hashedstring.h>
// #include <language/duchain/appendedlist.h>

#define FOREACH_CUSTOM(item, container, size) for(int a = 0, mustDo = 1; a < (int)size; ++a) if((mustDo = 1)) for(item(container[a]); mustDo; mustDo = 0)

namespace rpp {

// Q_DECL_EXPORT DECLARE_LIST_MEMBER_HASH(pp_macro, definition, IndexedString)
// Q_DECL_EXPORT DECLARE_LIST_MEMBER_HASH(pp_macro, formals, IndexedString)

  //This contains the data of a macro that can be marshalled by directly copying the memory
struct CPPPARSER_EXPORT pp_macro
{ ///@todo enable structure packing
  pp_macro(const IndexedString& name = IndexedString());
  pp_macro(const char* name);
  pp_macro(const pp_macro& rhs, bool dynamic = true);
  ~pp_macro();
  
  uint classSize() const {
    return sizeof(pp_macro);
  }
  
  /*uint itemSize() const {
    return dynamicSize();
  }*/
  
  typedef uint HashType;

  IndexedString name;
  IndexedString file;
  
  int sourceLine; //line

  bool defined: 1; // !isUndefMacro
  bool hidden: 1;
  bool function_like: 1; // hasArguments
  bool variadics: 1;
  bool fixed : 1; //If this is set, the macro can not be overridden or undefined.
  mutable bool m_valueHashValid : 1;
  
  //The valueHash is not necessarily valid
  mutable HashType m_valueHash; //Hash that represents the values of all macros
  
  bool operator==(const pp_macro& rhs) const;
  
  bool isUndef() const  {
    return !defined;
  }
  
  unsigned int hash() const {
    return completeHash();
  }
  
  HashType idHash() const {
    return name.hash();
  }
  
  QString toString() const;
  
  struct NameCompare {
    bool operator () ( const pp_macro& lhs, const pp_macro& rhs ) const {
      return lhs.name.index() < rhs.name.index();
    }
    #ifdef Q_CC_MSVC
    
    HashType operator () ( const pp_macro& macro ) const
    {
        return macro.idHash();
    }
    
    enum
    { // parameters for hash table
    bucket_size = 4,  // 0 < bucket_size
    min_buckets = 8}; // min_buckets = 2 ^^ N, 0 < N
    #endif
  };

  //Hash over id and value
  struct CompleteHash {
    HashType operator () ( const pp_macro& lhs ) const {
        return lhs.completeHash();
    }
    
    #ifdef Q_CC_MSVC
    
    bool operator () ( const pp_macro& lhs, const pp_macro& rhs ) const {
        HashType lhash = lhs.valueHash()+lhs.idHash();
        HashType rhash = rhs.valueHash()+rhs.idHash();
        if( lhash < rhash ) return true;
        else if( lhash > rhash ) return false;

      int df = lhs.name.str().compare( rhs.name.str() );
      return df < 0;
    }