// @(#)root/reflex:$Id: Kernel.h 32267 2010-02-08 10:24:46Z axel $
// Author: Stefan Roiser 2004

// Copyright CERN, CH-1211 Geneva 23, 2004-2010, All rights reserved.
//
// Permission to use, copy, modify, and distribute this software for any
// purpose is hereby granted without fee, provided that this copyright and
// permissions notice appear in all copies and derivatives.
//
// This software is provided "as is" without express or implied warranty.

#ifndef Reflex_Kernel
#define Reflex_Kernel

// These macros will allow selection on exported symbols
// taken from http://www.nedprod.com/programs/gccvisibility.html
// Shared library support

#if __GNUC__ >= 4 && !defined(__CINT__)
# define GCC_HASCLASSVISIBILITY
#endif

#if !defined(REFLEX_DLL_VETO) && !defined(REFLEX_DLL) && !defined(__CINT__)
// we build Reflex as DLL by default, #define REFLEX_DLL_VETO to hide visibility / dllim/export code
# define REFLEX_DLL
#endif

#ifdef _WIN32
# define RFLX_IMPORT __declspec(dllimport)
# define RFLX_EXPORT __declspec(dllexport)
# define RFLX_DLLLOCAL
# define RFLX_DLLPUBLIC
#else
# ifdef GCC_HASCLASSVISIBILITY
#  define RFLX_EXPORT __attribute__((visibility("default")))
#  define RFLX_DLLLOCAL __attribute__((visibility("hidden")))
#  define RFLX_DLLPUBLIC __attribute__((visibility("default")))
# else
#  define RFLX_EXPORT
#  define RFLX_DLLLOCAL
#  define RFLX_DLLPUBLIC
# endif
# define RFLX_IMPORT
#endif

// Define RFLX_API for DLL builds
#ifdef REFLEX_DLL
# ifdef REFLEX_BUILD
#  define RFLX_API RFLX_EXPORT
# else
#  define RFLX_API RFLX_IMPORT
# endif  // REFLEX_BUILD
#else
# define RFLX_API
#endif // REFLEX_DLL

// Throwable classes must always be visible on GCC in all binaries
#ifdef _WIN32
# define RFLX_EXCEPTIONAPI(api) api
#elif defined(GCC_HASCLASSVISIBILITY)
# define RFLX_EXCEPTIONAPI(api) RFLX_EXPORT
#else
# define RFLX_EXCEPTIONAPI(api)
#endif
// end macros for symbol selection


// include config.h generated by autoconf
#if defined(HAVE_CONFIG)
# include "config.h"
#endif

#if defined(_AIX)
# define ANSICPP
# define NEED_STRCASECMP
#endif

#if defined(__alpha) && !defined(__linux)
# ifndef __USE_STD_IOSTREAM
#  define __USE_STD_IOSTREAM
# endif
#endif

// windows.h and oracle define CONST
#ifdef CONST
# undef CONST
#endif

#ifdef _WIN32
// Some pragmas to avoid warnings in MSVisualC
// Disable warning C4786: identifier was truncated to '255' characters in the debug information
# pragma warning ( disable : 4786 )
// Disable warning C4291: no matching operator delete found; memory will not be freed if
// initialization throws an exception
# pragma warning ( disable : 4291 )
// Disable warning C4250: inheritance via dominance
# pragma warning ( disable : 4250 )
#endif

// some compilers define the macros below in limits
#include <limits>

#ifndef LONGLONG_MAX
# define LONGLONG_MAX 0x7FFFFFFFFFFFFFFFLL
#endif
#ifndef LONGLONG_MIN
# define LONGLONG_MIN 0x8000000000000000LL
#endif
#ifndef ULONGLONG_MAX
# define ULONGLONG_MAX 0xFFFFFFFFFFFFFFFFLL
#endif
#ifndef ULONGLONG_MIN
# define ULONGLONG_MIN 0x0000000000000000LL
#endif


// Include files
#include <stdlib.h>
#include <string.h>
#include <string>
#include <cstring>
#include <vector>
#include <utility>
#include <exception>

namespace Reflex {
#if 0
// The definition of Reflex::longlong is now removed.
// It is not needed by the Reflex API, and it interfers
// with user code defining its own longlong, because
// the dictionaries pull it in via "using namespace Reflex".

// Large integer definition depends of the platform
# if defined(_WIN32) && !defined(__CINT__)
typedef __int64 longlong;
typedef unsigned __int64 ulonglong;
# else
typedef long long int longlong;    /* */
typedef unsigned long long int /**/ ulonglong;
# endif
#endif

// forward declarations
class Any;
class Type;
class Base;
class Scope;
class Object;
class Member;
class PropertyList;
class TypeTemplate;
class MemberTemplate;

typedef std::vector<std::string> StdString_Cont_Type_t;
typedef StdString_Cont_Type_t::const_iterator StdString_Iterator;
typedef StdString_Cont_Type_t::const_reverse_iterator Reverse_StdString_Iterator;

typedef std::vector<Type> Type_Cont_Type_t;
typedef Type_Cont_Type_t::const_iterator Type_Iterator;
typedef Type_Cont_Type_t::const_reverse_iterator Reverse_Type_Iterator;

typedef std::vector<Base> Base_Cont_Type_t;
typedef Base_Cont_Type_t::const_iterator Base_Iterator;
typedef Base_Cont_Type_t::const_reverse_iterator Reverse_Base_Iterator;

typedef std::vector<Scope> Scope_Cont_Type_t;
typedef Scope_Cont_Type_t::const_iterator Scope_Iterator;
typedef Scope_Cont_Type_t::const_reverse_iterator Reverse_Scope_Iterator;

typedef std::vector<Object> Object_Cont_Type_t;
typedef Object_Cont_Type_t::const_iterator Object_Iterator;
typedef Object_Cont_Type_t::const_reverse_iterator Reverse_Object_Iterator;

typedef std::vector<Member> Member_Cont_Type_t;
typedef Member_Cont_Type_t::const_iterator Member_Iterator;
typedef Member_Cont_Type_t::const_reverse_iterator Reverse_Member_Iterator;

typedef std::vector<TypeTemplate> TypeTemplate_Cont_Type_t;
typedef TypeTemplate_Cont_Type_t::const_iterator TypeTemplate_Iterator;
typedef TypeTemplate_Cont_Type_t::const_reverse_iterator Reverse_TypeTemplate_Iterator;

typedef std::vector<MemberTemplate> MemberTemplate_Cont_Type_t;
typedef MemberTemplate_Cont_Type_t::const_iterator MemberTemplate_Iterator;
typedef MemberTemplate_Cont_Type_t::const_reverse_iterator Reverse_MemberTemplate_Iterator;


namespace Dummy {
RFLX_API const StdString_Cont_Type_t& StdStringCont();
RFLX_API const Type_Cont_Type_t& TypeCont();
RFLX_API const Base_Cont_Type_t& BaseCont();
RFLX_API const Scope_Cont_Type_t& ScopeCont();
RFLX_API const Object_Cont_Type_t& ObjectCont();
RFLX_API const Member_Cont_Type_t& MemberCont();
RFLX_API const TypeTemplate_Cont_Type_t& TypeTemplateCont();
RFLX_API const MemberTemplate_Cont_Type_t& MemberTemplateCont();
RFLX_API Any& Any();
RFLX_API const Object& Object();
RFLX_API const Type& Type();
RFLX_API const TypeTemplate& TypeTemplate();
RFLX_API const Base& Base();
RFLX_API const PropertyList& PropertyList();
RFLX_API const Member& Member();
RFLX_API const MemberTemplate& MemberTemplate();
RFLX_API const Scope& Scope();
template <class T> inline const T&
Get() {
   static T t;
   return t;
}


}


/** The Reflex instance ensures the setup of the databases
    and provides access to some general information about the Reflex package */
class RFLX_API Instance {
public:
   /** default constructor */
   Instance();

   /** destructor */
   ~Instance();

   enum EState {
      kUninitialized, // before instance construction
      kInitializing, // the instance is being constructed
      kActive, // the instance is running
      kTearingDown, // the instance is being destructed
      kHasShutDown, // the instance has been destructed
      kNumStates
   };

   /** return true if Reflex has shutdown (end of process) */
   static bool HasShutdown();

   /** return Reflex instance state */
   static EState State();

   void Shutdown();

private:
   Instance(Instance * createSingleton);
   static Instance& CreateReflexInstance();

   static Instance* fgSingleton; // class singleton
   static EState fgState; // singleton's state
};    // struct Reflex

/** the Name of the package - used for messages */
RFLX_API const std::string& Argv0();     // returns "Reflex";

// these defines are used for the modifiers they are used in the following
// classes
// BA = BASE
// CL = CLASS
// FU = FUNCTION
// DM = DATAMEMBER
// FM = FUNCTIONMEMBER
// TY = TYPE
// ME = MEMBER
//                                BA  CL  DM  FM  TY  ME
enum ENTITY_DESCRIPTION {
   PUBLIC = (1 << 0),            //  X       X   X       X
   PROTECTED = (1 << 1),         //  X       X   X       X
   PRIVATE = (1 << 2),           //  X       X   X       X
   REGISTER = (1 << 3),          //          X   X       X
   STATIC = (1 << 4),            //          X   X       X
   CONSTRUCTOR = (1 << 5),       //              X       X
   DESTRUCTOR = (1 << 6),        //              X       X
   EXPLICIT = (1 << 7),          //              X       X
   EXTERN = (1 << 8),            //          X   X       X
   COPYCONSTRUCTOR = (1 << 9),   //              X       X
   OPERATOR = (1 << 10),         //              X       X
   INLINE = (1 << 11),           //              X       X
   CONVERTER = (1 << 12),        //              X       X
   AUTO = (1 << 13),             //          X           X
   MUTABLE = (1 << 14),          //          X           X
   CONST = (1 << 15),            //          X       X   X
   VOLATILE = (1 << 16),         //          X       X   X
   REFERENCE = (1 << 17),        //          X           X
   ABSTRACT = (1 << 18),         //      X       X   X
   VIRTUAL = (1 << 19),          //  X   X           X
   TRANSIENT = (1 << 20),        //          X           X
   ARTIFICIAL = (1 << 21),       //  X   X   X   X   X   X
   // the bits 31 - 28 are reserved for template default arguments
   TEMPLATEDEFAULTS1 = (0 << 31) & (0 << 30) & (0 << 29) & (1 << 28),
   TEMPLATEDEFAULTS2 = (0 << 31) & (0 << 30) & (1 << 29) & (0 << 28),
   TEMPLATEDEFAULTS3 = (0 << 31) & (0 << 30) & (1 << 29) & (1 << 28),
   TEMPLATEDEFAULTS4 = (0 << 31) & (1 << 30) & (0 << 29) & (0 << 28),
   TEMPLATEDEFAULTS5 = (0 << 31) & (1 << 30) & (0 << 29) & (1 << 28),
   TEMPLATEDEFAULTS6 = (0 << 31) & (1 << 30) & (1 << 29) & (0 << 28),
   TEMPLATEDEFAULTS7 = (0 << 31) & (1 << 30) & (1 << 29) & (1 << 28),
   TEMPLATEDEFAULTS8 = (1 << 31) & (0 << 30) & (0 << 29) & (0 << 28),
   TEMPLATEDEFAULTS9 = (1 << 31) & (0 << 30) & (0 << 29) & (1 << 28),
   TEMPLATEDEFAULTS10 = (1 << 31) & (0 << 30) & (1 << 29) & (0 << 28),
   TEMPLATEDEFAULTS11 = (1 << 31) & (0 << 30) & (1 << 29) & (1 << 28),
   TEMPLATEDEFAULTS12 = (1 << 31) & (1 << 30) & (0 << 29) & (0 << 28),
   TEMPLATEDEFAULTS13 = (1 << 31) & (1 << 30) & (0 << 29) & (1 << 28),
   TEMPLATEDEFAULTS14 = (1 << 31) & (1 << 30) & (1 << 29) & (0 << 28),
   TEMPLATEDEFAULTS15 = (1 << 31) & (1 << 30) & (1 << 29) & (1 << 28)
};


/** enum for printing names */
enum ENTITY_HANDLING {
   FINAL = (1 << 0),
   QUALIFIED = (1 << 1),
   SCOPED = (1 << 2),
   F = (1 << 4),
   Q = (1 << 5),
   S = (1 << 6)
};


/** enum containing all possible types and scopes */
enum TYPE {
   CLASS = 0,
   STRUCT,
   ENUM,
   FUNCTION,
   ARRAY,
   FUNDAMENTAL,
   POINTER,
   POINTERTOMEMBER,
   TYPEDEF,
   UNION,
   TYPETEMPLATEINSTANCE,
   MEMBERTEMPLATEINSTANCE,
   NAMESPACE,
   DATAMEMBER,
   FUNCTIONMEMBER,
   UNRESOLVED
};

/** enum containing all possible 'representation' types */
enum REPRESTYPE {
   REPRES_POINTER = 'a' - 'A',                 // To be added to the other value to refer to a pointer to
   REPRES_CHAR = 'c',
   REPRES_SIGNED_CHAR = 'c',
   REPRES_SHORT_INT = 's',
   REPRES_INT = 'i',
   REPRES_LONG_INT = 'l',
   REPRES_UNSIGNED_CHAR = 'b',
   REPRES_UNSIGNED_SHORT_INT = 'r',
   REPRES_UNSIGNED_INT = 'h',
   REPRES_UNSIGNED_LONG_INT = 'k',
   REPRES_BOOL = 'g',
   REPRES_FLOAT = 'f',
   REPRES_DOUBLE = 'd',
   REPRES_LONG_DOUBLE = 'q',
   REPRES_VOID = 'y',
   REPRES_LONGLONG = 'n',
   REPRES_ULONGLONG = 'm',
   REPRES_STRUCT = 'u',
   REPRES_CLASS = 'u',
   REPRES_ENUM = 'i',                   // Intentionally equal to REPRES_INT
   REPRES_NOTYPE = '\0'
                   // '1' is also a value used (for legacy implementation of function pointer)
                   // 'E' is also a value used (for legacy implementation of FILE*)
                   // 'a', 'j', 'T', 'o', 'O', 'p', 'P', 'z', 'Z', '\011', '\001', 'w' are also a value used (for support of various interpreter types)
};

enum EMEMBERQUERY {
   INHERITEDMEMBERS_DEFAULT,    // NO by default, set to ALSO by UpdateMembers()
   INHERITEDMEMBERS_NO,
   INHERITEDMEMBERS_ALSO
};

enum EDELAYEDLOADSETTING {
   DELAYEDLOAD_OFF,
   DELAYEDLOAD_ON
};

// Note TYPE and REPRESTYPE are 'small' enums and could be stored as 'char' to save space

/** the max unsigned int */
size_t NPos();


/**
 * typedef for function member type (necessary for return value of
 * getter function)
 */
typedef void (*StubFunction)(void*, void*, const std::vector<void*>&, void*);

/** typedef for function for Offset calculation */
typedef size_t (*OffsetFunction)(void*);

/** dummy types for type_info purposes */
class RFLX_API NullType {};
class RFLX_API UnknownType {};
/** place holders for protected types */
class RFLX_API ProtectedClass {};
class RFLX_API ProtectedEnum {};
class RFLX_API ProtectedStruct {};
class RFLX_API ProtectedUnion {};
/** place holders for private types */
class RFLX_API PrivateClass {};
class RFLX_API PrivateEnum {};
class RFLX_API PrivateStruct {};
class RFLX_API PrivateUnion {};
/** place holders for unnamed types (also typeinfo purposes) */
class RFLX_API UnnamedClass {};
class RFLX_API UnnamedEnum {};
class RFLX_API UnnamedNamespace {};
class RFLX_API UnnamedStruct {};
class RFLX_API UnnamedUnion {};

/** exception classes */
class RFLX_EXCEPTIONAPI(RFLX_API) RuntimeError: public std::exception {
public:
   RuntimeError(const std::string & msg): fMsg(Reflex::Argv0() + ": " + msg) {}
   ~RuntimeError() throw() {}
   virtual const char*
   what() const throw() { return fMsg.c_str(); }

   std::string fMsg;
};

} // namespace Reflex

namespace ROOT {
namespace Reflex {
using namespace ::Reflex;
}
}


//-------------------------------------------------------------------------------
inline size_t
Reflex::NPos() {
//-------------------------------------------------------------------------------
   return (size_t) -1;
}


#endif // Reflex_Kernel