trunk/Source/Modules/swigmod.h

/* -----------------------------------------------------------------------------
 * See the LICENSE file for information on copyright, usage and redistribution
 * of SWIG, and the README file for authors - http://www.swig.org/release.html.
 *
 * swigmod.h
 *
 * Main header file for SWIG modules.
 * ----------------------------------------------------------------------------- */

/* $Id$ */

#ifndef SWIG_SWIGMOD_H_
#define SWIG_SWIGMOD_H_

#include "swig.h"
#include "preprocessor.h"
#include "swigwarn.h"

#if !defined(HAVE_BOOL)
typedef int bool;
#define true ((bool)1)
#define false ((bool)0)
#endif

#define NOT_VIRTUAL     0
#define PLAIN_VIRTUAL   1
#define PURE_VIRTUAL    2

extern char *input_file;
extern int line_number;
extern int start_line;
extern int CPlusPlus;		// C++ mode
extern int Extend;		// Extend mode
extern int Verbose;
extern int IsVirtual;
extern int ImportMode;
extern int NoExcept;		// -no_except option
extern int Abstract;		// abstract base class
extern int SmartPointer;	// smart pointer methods being emitted
extern int SwigRuntime;

/* Overload "argc" and "argv" */
extern String *argv_template_string;
extern String *argc_template_string;

/* Miscellaneous stuff */

#define  tab2   "  "
#define  tab4   "    "
#define  tab8   "        "

class Dispatcher {
public:

  Dispatcher ():cplus_mode(PUBLIC) {
  }
  virtual ~ Dispatcher () {
  }

  virtual int emit_one(Node *n);
  virtual int emit_children(Node *n);
  virtual int defaultHandler(Node *n);

  /* Top of the parse tree */
  virtual int top(Node *n) = 0;

  /* SWIG directives */

  virtual int applyDirective(Node *n);
  virtual int clearDirective(Node *n);
  virtual int constantDirective(Node *n);
  virtual int extendDirective(Node *n);
  virtual int fragmentDirective(Node *n);
  virtual int importDirective(Node *n);
  virtual int includeDirective(Node *n);
  virtual int insertDirective(Node *n);
  virtual int moduleDirective(Node *n);
  virtual int nativeDirective(Node *n);
  virtual int pragmaDirective(Node *n);
  virtual int typemapDirective(Node *n);
  virtual int typemapitemDirective(Node *n);
  virtual int typemapcopyDirective(Node *n);
  virtual int typesDirective(Node *n);

  /* C/C++ parsing */

  virtual int cDeclaration(Node *n);
  virtual int externDeclaration(Node *n);
  virtual int enumDeclaration(Node *n);
  virtual int enumvalueDeclaration(Node *n);
  virtual int enumforwardDeclaration(Node *n);
  virtual int classDeclaration(Node *n);
  virtual int classforwardDeclaration(Node *n);
  virtual int constructorDeclaration(Node *n);
  virtual int destructorDeclaration(Node *n);
  virtual int accessDeclaration(Node *n);
  virtual int usingDeclaration(Node *n);
  virtual int namespaceDeclaration(Node *n);
  virtual int templateDeclaration(Node *n);

  enum AccessMode { PUBLIC, PRIVATE, PROTECTED };

protected:
  AccessMode cplus_mode;
};

/* ----------------------------------------------------------------------------
 * class language:
 *
 * This class defines the functions that need to be supported by the
 * scripting language being used.    The translator calls these virtual
 * functions to output different types of code for different languages.
 * ------------------------------------------------------------------------- */

class Language:public Dispatcher {
public:
  Language ();
   virtual ~ Language ();
  virtual int emit_one(Node *n);

  /* Parse command line options */

  virtual void main(int argc, char *argv[]);

  /* Top of the parse tree */

  virtual int top(Node *n);

  /* SWIG directives */


  virtual int applyDirective(Node *n);
  virtual int clearDirective(Node *n);
  virtual int constantDirective(Node *n);
  virtual int extendDirective(Node *n);
  virtual int fragmentDirective(Node *n);
  virtual int importDirective(Node *n);
  virtual int includeDirective(Node *n);
  virtual int insertDirective(Node *n);
  virtual int moduleDirective(Node *n);
  virtual int nativeDirective(Node *n);
  virtual int pragmaDirective(Node *n);
  virtual int typemapDirective(Node *n);
  virtual int typemapcopyDirective(Node *n);
  virtual int typesDirective(Node *n);

  /* C/C++ parsing */

  virtual int cDeclaration(Node *n);
  virtual int externDeclaration(Node *n);
  virtual int enumDeclaration(Node *n);
  virtual int enumvalueDeclaration(Node *n);
  virtual int enumforwardDeclaration(Node *n);
  virtual int classDeclaration(Node *n);
  virtual int classforwardDeclaration(Node *n);
  virtual int constructorDeclaration(Node *n);
  virtual int destructorDeclaration(Node *n);
  virtual int accessDeclaration(Node *n);
  virtual int namespaceDeclaration(Node *n);
  virtual int usingDeclaration(Node *n);

  /* Function handlers */

  virtual int functionHandler(Node *n);
  virtual int globalfunctionHandler(Node *n);
  virtual int memberfunctionHandler(Node *n);
  virtual int staticmemberfunctionHandler(Node *n);
  virtual int callbackfunctionHandler(Node *n);

  /* Variable handlers */

  virtual int variableHandler(Node *n);
  virtual int globalvariableHandler(Node *n);
  virtual int membervariableHandler(Node *n);
  virtual int staticmembervariableHandler(Node *n);

  /* C++ handlers */

  virtual int memberconstantHandler(Node *n);
  virtual int constructorHandler(Node *n);
  virtual int copyconstructorHandler(Node *n);
  virtual int destructorHandler(Node *n);
  virtual int classHandler(Node *n);

  /* Miscellaneous */

  virtual int typedefHandler(Node *n);

  /* Low-level code generation */

  virtual int constantWrapper(Node *n);
  virtual int variableWrapper(Node *n);
  virtual int functionWrapper(Node *n);
  virtual int nativeWrapper(Node *n);

  /* C++ director class generation */
  virtual int classDirector(Node *n);
  virtual int classDirectorInit(Node *n);
  virtual int classDirectorEnd(Node *n);
  virtual int unrollVirtualMethods(Node *n, Node *parent, List *vm, int default_director, int &virtual_destructor, int protectedbase = 0);
  virtual int classDirectorConstructor(Node *n);
  virtual int classDirectorDefaultConstructor(Node *n);
  virtual int classDirectorMethod(Node *n, Node *parent, String *super);
  virtual int classDirectorConstructors(Node *n);
  virtual int classDirectorDestructor(Node *n);
  virtual int classDirectorMethods(Node *n);
  virtual int classDirectorDisown(Node *n);

  /* Miscellaneous */
  virtual int validIdentifier(String *s);	/* valid identifier? */
  virtual int addSymbol(const String *s, const Node *n);	/* Add symbol        */
  virtual Node *symbolLookup(String *s);	/* Symbol lookup     */
  virtual Node *classLookup(SwigType *s);	/* Class lookup      */
  virtual Node *enumLookup(SwigType *s);	/* Enum lookup       */
  virtual int abstractClassTest(Node *n);	/* Is class really abstract? */
  virtual int is_assignable(Node *n);	/* Is variable assignable? */
  virtual String *runtimeCode();	/* returns the language specific runtime code */
  virtual String *defaultExternalRuntimeFilename();	/* the default filename for the external runtime */

  /* Runtime is C++ based, so extern "C" header section */
  void enable_cplus_runtime_mode();

  /* Returns the cplus_runtime mode */
  int cplus_runtime_mode();

  /* Allow director related code generation */
  void allow_directors(int val = 1);

  /* Return true if directors are enabled */
  int directorsEnabled() const;

  /* Allow director protected members related code generation */
  void allow_dirprot(int val = 1);

  /* Allow all protected members code generation (for directors) */
  void allow_allprotected(int val = 0);

  /* Returns the dirprot mode */
  int dirprot_mode() const;

  /* Check if the non public constructor is  needed (for directors) */
  int need_nonpublic_ctor(Node *n);

  /* Check if the non public member is  needed (for directors) */
  int need_nonpublic_member(Node *n);

  /* Set none comparison string */
  void setSubclassInstanceCheck(String *s);

  /* Set overload variable templates argc and argv */
  void setOverloadResolutionTemplates(String *argc, String *argv);

protected:
  /* Allow multiple-input typemaps */
  void allow_multiple_input(int val = 1);

  /* Allow overloaded functions */
  void allow_overloading(int val = 1);

  /* Wrapping class query */
  int is_wrapping_class();

  /* Return the node for the current class */
  Node *getCurrentClass() const;

  /* Return C++ mode */
  int getCPlusMode() const;

  /* Return the real name of the current class */
  String *getClassName() const;

  /* Return the classes hash */
  Hash *getClassHash() const;

  /* Return the current class prefix */
  String *getClassPrefix() const;

  /* Fully qualified type name to use */
  String *getClassType() const;

  /* Return true if the current method is part of a smart-pointer */
  int is_smart_pointer() const;

  /* Some language modules require additional wrappers for virtual methods not declared in sub-classes */
  virtual bool extraDirectorProtectedCPPMethodsRequired() const;

  /* Director subclass comparison test */
  String *none_comparison;

  /* Director constructor "template" code */
  String *director_ctor_code;

  /* Director 'protected' constructor "template" code */
  String *director_prot_ctor_code;

  /* Director allows multiple inheritance */
  int director_multiple_inheritance;

  /* Director language module */
  int director_language;

private:
  Hash *symbols;
  Hash *classtypes;
  Hash *enumtypes;
  int overloading;
  int multiinput;
  int cplus_runtime;
  int directors;
};

int SWIG_main(int, char **, Language *);
void emit_parameter_variables(ParmList *l, Wrapper *f);
void emit_return_variable(Node *n, SwigType *rt, Wrapper *f);
void SWIG_exit(int);		/* use EXIT_{SUCCESS,FAILURE} */
void SWIG_config_file(const String_or_char *);
const String *SWIG_output_directory();
void SWIG_config_cppext(const char *ext);

void SWIG_library_directory(const char *);
int emit_num_arguments(ParmList *);
int emit_num_required(ParmList *);
int emit_isvarargs(ParmList *);
void emit_attach_parmmaps(ParmList *, Wrapper *f);
void emit_mark_varargs(ParmList *l);
String *emit_action(Node *n);
int emit_action_code(Node *n, String *wrappercode, String *action);
void Swig_overload_check(Node *n);
String *Swig_overload_dispatch(Node *n, const String_or_char *fmt, int *);
String *Swig_overload_dispatch_cast(Node *n, const String_or_char *fmt, int *);
String *Swig_overload_dispatch_fast(Node *n, const String_or_char *fmt, int *);
SwigType *cplus_value_type(SwigType *t);

/* directors.cxx start */
String *Swig_csuperclass_call(String *base, String *method, ParmList *l);
String *Swig_class_declaration(Node *n, String *name);
String *Swig_class_name(Node *n);
String *Swig_method_call(String_or_char *name, ParmList *parms);
String *Swig_method_decl(SwigType *rtype, SwigType *decl, const String_or_char *id, List *args, int strip, int values);
String *Swig_director_declaration(Node *n);
void Swig_director_emit_dynamic_cast(Node *n, Wrapper *f);
/* directors.cxx end */

extern "C" {
  void SWIG_typemap_lang(const char *);
  typedef Language *(*ModuleFactory) (void);
} void Swig_register_module(const char *name, ModuleFactory fac);
ModuleFactory Swig_find_module(const char *name);

/* Utilities */

int is_public(Node *n);
int is_private(Node *n);
int is_protected(Node *n);
int is_member_director(Node *parentnode, Node *member);
int is_member_director(Node *member);
int is_non_virtual_protected_access(Node *n); /* Check if the non-virtual protected members are required (for directors) */
int use_naturalvar_mode(Node *n);

void Wrapper_virtual_elimination_mode_set(int);
void Wrapper_fast_dispatch_mode_set(int);
void Wrapper_cast_dispatch_mode_set(int);
void Wrapper_naturalvar_mode_set(int);


void clean_overloaded(Node *n);

/* Contracts */

void Swig_contracts(Node *n);
void Swig_contract_mode_set(int flag);
int Swig_contract_mode_get();

/* Browser */

void Swig_browser(Node *n, int);
void Swig_default_allocators(Node *n);
void Swig_process_types(Node *n);


#endif