/* -----------------------------------------------------------------------------
 * tcl8.cxx
 *
 *     Tcl8.0 wrapper module.
 *
 * Author(s) : David Beazley (beazley@cs.uchicago.edu)
 *
 * Copyright (C) 1999-2000.  The University of Chicago
 * See the file LICENSE for information on usage and redistribution.
 *
 * Incr Tcl 3.x support by Alexey Dyachenko (dyachenko@fromru.com) 
 *
 * Based on 
 * itcl.cxx
 *  Author:  Bob Techentin
 *           based on tcl8 and python modules by David Beazley
 *
 * Module for creating Incr Tcl 3.x shadow classes
 * and Tcl 8.x native wrapper functions.
 *
 * ----------------------------------------------------------------------------- */

char cvsroot_tcl8_cxx[] = "$Header$";

#include "swigmod.h"

static const char *usage = (char*)"\
Tcl 8 Options (available with -tcl)\n\
     -itcl           - Enable ITcl support\n\
     -nosafe         - Leave out SafeInit module function.\n\
     -prefix <name>  - Set a prefix <name> to be prepended to all names\n\
     -namespace      - Build module into a Tcl 8 namespace\n\
     -pkgversion     - Set package version\n\n";

static String     *cmd_tab = 0;                    /* Table of command names    */
static String     *var_tab = 0;                    /* Table of global variables */
static String     *const_tab = 0;                  /* Constant table            */
static String     *methods_tab = 0;                /* Methods table             */
static String     *attr_tab = 0;                   /* Attribute table           */
static String     *prefix = 0;
static String     *module = 0;
static int         nspace = 0;
static String     *init_name = 0;
static String     *ns_name = 0;
static int         have_constructor;
static String     *constructor_name;
static int         have_destructor;
static int         have_base_classes;
static String     *destructor_action = 0;
static String     *version = (String *) "0.0";
static String     *class_name = 0;

static int    have_attributes;
static int    have_methods;
static int    nosafe = 0;

static File       *f_header  = 0;
static File       *f_wrappers = 0;
static File       *f_init = 0;
static File       *f_runtime = 0;


//  Itcl support
static int    itcl = 0;
static File   *f_shadow = 0;
static File   *f_shadow_stubs = 0;

static String *constructor = 0;
static String *destructor = 0;
static String *base_classes = 0;
static String *base_class_init = 0;
static String *methods = 0;
static String *imethods = 0;
static String *attributes = 0;
static String *attribute_traces = 0;
static String *iattribute_traces = 0;



class TCL8 : public Language {
public:
   
  /* ------------------------------------------------------------
   * TCL8::main()
   * ------------------------------------------------------------ */
  
  virtual void main(int argc, char *argv[]) {
    int cppcast = 1;

    SWIG_library_directory("tcl");
    
    for (int i = 1; i < argc; i++) {
      if (argv[i]) {
	if (strcmp(argv[i],"-prefix") == 0) {
	  if (argv[i+1]) {
	    prefix = NewString(argv[i+1]);
	    Swig_mark_arg(i);
	    Swig_mark_arg(i+1);
	    i++;
	  } else Swig_arg_error();
	} else if (strcmp(argv[i],"-pkgversion") == 0) {
	  if (argv[i+1]) {
	    version = NewString(argv[i+1]);
	    Swig_mark_arg(i);
	    Swig_mark_arg(i+1);
	    i++;
	  }
	} else if (strcmp(argv[i],"-namespace") == 0) {
	  nspace = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i],"-itcl") == 0) {
	  itcl = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i],"-nosafe") == 0) {
	  nosafe = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i],"-cppcast") == 0) {
	  cppcast = 1;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i],"-nocppcast") == 0) {
	  cppcast = 0;
	  Swig_mark_arg(i);
	} else if (strcmp(argv[i],"-help") == 0) {
	  fputs(usage,stdout);
	}
      }
    }

    if (cppcast) {
      Preprocessor_define((DOH *) "SWIG_CPLUSPLUS_CAST", 0);
    }

    Preprocessor_define("SWIGTCL 1",0);
    Preprocessor_define("SWIGTCL8 1", 0);
    SWIG_typemap_lang("tcl8");
    SWIG_config_file("tcl8.swg");
    allow_overloading();
  }

  /* ------------------------------------------------------------
   * top()
   * ------------------------------------------------------------ */

  virtual int top(Node *n) {

    /* Initialize all of the output files */
    String *outfile = Getattr(n,"outfile");
    
    f_runtime = NewFile(outfile,"w");
    if (!f_runtime) {
      FileErrorDisplay(outfile);
      SWIG_exit(EXIT_FAILURE);
    }
    f_init = NewString("");
    f_header = NewString("");
    f_wrappers = NewString("");
    
    /* Register file targets with the SWIG file handler */
    Swig_register_filebyname("header",f_header);
    Swig_register_filebyname("wrapper",f_wrappers);
    Swig_register_filebyname("runtime",f_runtime);
    Swig_register_filebyname("init",f_init);
    
    /* Initialize some variables for the object interface */
    
    cmd_tab        = NewString("");
    var_tab        = NewString("");
    methods_tab    = NewString("");
    const_tab      = NewString("");
    
    Swig_banner(f_runtime);
    
    /* Set the module name, namespace, and prefix */
    
    module = NewStringf("%(lower)s", Getattr(n,"name"));
    init_name = NewStringf("%(title)s_Init",module);
    
    ns_name = prefix ? Copy(prefix) : Copy(module);
    if (prefix) Append(prefix,"_");
    

    /* If shadow classing is enabled, we're going to change the module name to "_module" */
    if (itcl) {
      char  filen[256];
      sprintf(filen,"%s%s.itcl", Swig_file_dirname(outfile), Char(module));

      Insert( module,0,"_" );

      if ((f_shadow = NewFile(filen,"w")) == 0) {
	FileErrorDisplay(filen);
	SWIG_exit (EXIT_FAILURE);
      }
      f_shadow_stubs = NewString("");

      Swig_register_filebyname("shadow",f_shadow);
      Swig_register_filebyname("itcl",f_shadow);

      Printv(f_shadow,
	     "# This file was created automatically by SWIG ", PACKAGE_VERSION, ".\n",
	     "# Don't modify this file, modify the SWIG interface instead.\n",
	     NIL);

      Printv(f_shadow,"\npackage require Itcl\n\n", NIL);
    };
    
    /* Generate some macros used throughout code generation */
    
    Printf(f_header,"#define SWIG_init    %s\n", init_name);
    Printf(f_header,"#define SWIG_name    \"%s\"\n", module);
    if (nspace) {
      Printf(f_header,"#define SWIG_prefix  \"%s::\"\n", ns_name);
      Printf(f_header,"#define SWIG_namespace \"%s\"\n\n", ns_name);
    } else {
      Printf(f_header,"#define SWIG_prefix  \"%s\"\n", prefix);
    }
    Printf(f_header,"#define SWIG_version \"%s\"\n", version);
    
    Printf(cmd_tab,   "\nstatic swig_command_info swig_commands[] = {\n");
    Printf(var_tab,   "\nstatic swig_var_info swig_variables[] = {\n");
    Printf(const_tab, "\nstatic swig_const_info swig_constants[] = {\n");
    
    Printf(f_wrappers,"#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
    
    /* Start emitting code */
    Language::top(n);
    
    /* Done.  Close up the module */
    Printv(cmd_tab,   tab4, "{0, 0, 0}\n", "};\n",NIL);
    Printv(var_tab,   tab4, "{0,0,0,0}\n", "};\n",NIL);
    Printv(const_tab, tab4, "{0,0,0,0,0,0}\n", "};\n", NIL);
    
    Printv(f_wrappers, cmd_tab, var_tab, const_tab,NIL);
    
    /* Dump the pointer equivalency table */
    SwigType_emit_type_table(f_runtime, f_wrappers);
    
    Printf(f_wrappers,"#ifdef __cplusplus\n}\n#endif\n");
    
    /* Close the init function and quit */
    Printf(f_init,"return TCL_OK;\n}\n");

    if (!nosafe) {
      Printf(f_init,"SWIGEXPORT int %(title)s_SafeInit(Tcl_Interp *interp) {\n", module );
      Printf(f_init,"    return SWIG_init(interp);\n");
      Printf(f_init,"}\n");
    }

    if (itcl) {
      Printv(f_shadow, f_shadow_stubs, "\n",NIL);
      Close(f_shadow);
      Delete(f_shadow);
    }

    /* Close all of the files */
    Printv(f_runtime, f_header, f_wrappers,NIL);
    Wrapper_pretty_print(f_init,f_runtime);
    Delete(f_header);
    Delete(f_wrappers);
    Delete(f_init);
    Close(f_runtime);
    return SWIG_OK;
  }
  
  /* ------------------------------------------------------------
   * functionWrapper()
   * ------------------------------------------------------------ */

  virtual int functionWrapper(Node *n) {
    String   *name  = Getattr(n,"name");       /* Like to get rid of this */
    String   *iname = Getattr(n,"sym:name");
    SwigType *type  = Getattr(n,"type");
    ParmList *parms = Getattr(n,"parms");
    String   *overname = 0;

    Parm            *p;
    int              i;
    String          *tm;
    Wrapper         *f;
    String          *incode, *cleanup, *outarg, *argstr, *args;
    int              num_arguments = 0;
    int              num_required = 0;
    int              varargs = 0;
    
    char             source[64];
    
    if (Getattr(n,"sym:overloaded")) {
      overname = Getattr(n,"sym:overname");
    } else {
      if (!addSymbol(iname,n)) return SWIG_ERROR;
    }
    
    incode  = NewString("");
    cleanup = NewString("");
    outarg  = NewString("");
    argstr  = NewString("\"");
    args    = NewString("");
 
    f = NewWrapper();

    Wrapper_add_local(f,"resultobj", "Tcl_Obj *resultobj = NULL");

    String  *wname = Swig_name_wrapper(iname);
    if (overname) {
      Append(wname, overname);
    }
    Setattr(n,"wrap:name",wname);

    Printv(f->def,
	   "SWIGINTERN int\n ", wname, "(ClientData clientData SWIGUNUSED, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) {",
	   NIL);
    
    /* Print out variables for storing arguments. */
    emit_args(type,parms, f);
    
    /* Attach standard typemaps */
    emit_attach_parmmaps(parms,f);
    Setattr(n,"wrap:parms",parms);

    /* Get number of require and total arguments */
    num_arguments = emit_num_arguments(parms);
    num_required  = emit_num_required(parms);
    varargs       = emit_isvarargs(parms);
    
    /* Unmarshal parameters */
    
    for (i = 0, p = parms; i < num_arguments; i++) {
      /* Skip ignored arguments */
    
      while (checkAttribute(p,"tmap:in:numinputs","0")) {
	p = Getattr(p,"tmap:in:next");
      }
      
      SwigType *pt = Getattr(p,"type");
      String   *ln = Getattr(p,"lname");
      
      /* Produce string representations of the source and target arguments */
      sprintf(source,"objv[%d]",i+1);
      
      if (i == num_required) Putc('|',argstr);
      if ((tm = Getattr(p,"tmap:in"))) {
	String *parse = Getattr(p,"tmap:in:parse");
	if (!parse) {
	  Replaceall(tm,"$target",ln);
	  Replaceall(tm,"$source",source);
	  Replaceall(tm,"$input",source);
	  Setattr(p,"emit:input",source);

	  if (Getattr(p,"wrap:disown") || (Getattr(p,"tmap:in:disown"))) {
	    Replaceall(tm,"$disown","SWIG_POINTER_DISOWN");
	  } else {
	    Replaceall(tm,"$disown","0");
	  }

	  Putc('o',argstr);
	  Printf(args,",(void *)0");
	  if (i >= num_required) {
	    Printf(incode, "if (objc > %d) {\n", i+1);
	  }
	  Printf(incode,"%s\n", tm);
	  if (i >= num_required) {
	    Printf(incode, "}\n");
	  }
	} else {
	  Printf(argstr,"%s",parse);
	  Printf(args,",&%s",ln);
	  if (Strcmp(parse,"p") == 0) {
	    SwigType *lt = SwigType_ltype(pt);
	    SwigType_remember(pt);
	    if (Cmp(lt,"p.void") == 0) {
	      Printf(args,",(void *)0");
	    } else {
	      Printf(args,",SWIGTYPE%s", SwigType_manglestr(pt));
	    }
	    Delete(lt);
	  }
	}
	p = Getattr(p,"tmap:in:next");
	continue;
      } else {
	Swig_warning(WARN_TYPEMAP_IN_UNDEF, input_file, line_number,
		     "Unable to use type %s as a function argument.\n", SwigType_str(pt,0));
      }
      p = nextSibling(p);
    }
    
    if (!varargs) {
      Putc(':',argstr);
    } else {
      Putc(';',argstr);
      /* If variable length arguments we need to emit the in typemap here */
      if (p && (tm = Getattr(p,"tmap:in"))) {
	sprintf(source,"objv[%d]", i+1);
	Printf(incode,"if (objc > %d) {\n", i);
	Replaceall(tm,"$input",source);
	Printv(incode,tm,"\n", NIL);
	Printf(incode,"}\n");
      }
    }
    
    Printf(argstr,"%s\"",usage_string(Char(iname),type,parms));
    
    Printv(f->code,
	   "if (SWIG_GetArgs(interp, objc, objv,", argstr, args, ") == TCL_ERROR) SWIG_fail;\n",
	   NIL);
    
    Printv(f->code,incode,NIL);
    
    /* Insert constraint checking code */
    for (p = parms; p;) {
      if ((tm = Getattr(p,"tmap:check"))) {
	Replaceall(tm,"$target",Getattr(p,"lname"));
	Printv(f->code,tm,"\n",NIL);
	p = Getattr(p,"tmap:check:next");
      } else {
	p = nextSibling(p);
      }
    }
    
    /* Insert cleanup code */
    for (i = 0, p = parms; p; i++) {
      if (!checkAttribute(p,"tmap:in:numinputs","0") && (tm = Getattr(p,"tmap:freearg"))) {
	if (Len(tm) != 0) {
	  Replaceall(tm,"$source",Getattr(p,"lname"));
	  Printv(cleanup,tm,"\n",NIL);
	}
	p = Getattr(p,"tmap:freearg:next");
      } else {
	p = nextSibling(p);
      }
    }
    
    /* Insert argument output code */
    for (i=0,p = parms; p;i++) {
      if ((tm = Getattr(p,"tmap:argout"))) {
	Replaceall(tm,"$source",Getattr(p,"lname"));
	Replaceall(tm,"$target","resultobj");
	Replaceall(tm,"$result","resultobj");
	Replaceall(tm,"$arg",Getattr(p,"emit:input"));
	Replaceall(tm,"$input",Getattr(p,"emit:input"));
	Printv(outarg,tm,"\n",NIL);
	p = Getattr(p,"tmap:argout:next");
      } else {
	p = nextSibling(p);
      }
    }
    
    /* Now write code to make the function call */
    emit_action(n,f);
    
    /* Need to redo all of this code (eventually) */
    
    /* Return value if necessary  */
    if ((tm = Swig_typemap_lookup_new("out",n,"result",0))) {
      Replaceall(tm,"$source", "result");
      Replaceall(tm,"$target", "resultobj");
      Replaceall(tm,"$result", "resultobj");
      if(GetFlag(n,"feature:new")) {
        Replaceall(tm,"$owner","SWIG_POINTER_OWN");
      } else {
        Replaceall(tm,"$owner","0");
      }
      Printf(f->code,"%s\n", tm);
    } else {
      Swig_warning(WARN_TYPEMAP_OUT_UNDEF, input_file, line_number,
		   "Unable to use return type %s in function %s.\n", SwigType_str(type,0), name);
    }
    
    /* Dump output argument code */
    Printv(f->code,outarg,NIL);
    
    /* Dump the argument cleanup code */
    Printv(f->code,cleanup,NIL);
    
    /* Look for any remaining cleanup */
    if (GetFlag(n,"feature:new")) {
      if ((tm = Swig_typemap_lookup_new("newfree",n,"result",0))) {
	Replaceall(tm,"$source","result");
	Printf(f->code,"%s\n", tm);
      }
    }
    
    if ((tm = Swig_typemap_lookup_new("ret",n,"result",0))) {
      Replaceall(tm,"$source","result");
      Printf(f->code,"%s\n", tm);
    }
    Printv(f->code, "if (resultobj) Tcl_SetObjResult(interp, resultobj);\n", NIL);
    Printv(f->code, "return TCL_OK;\n", NIL);
    Printv(f->code, "fail:\n", cleanup, "return TCL_ERROR;\n", NIL);
    Printv(f->code,"}\n", NIL);
    
    /* Substitute the cleanup code */
    Replaceall(f->code,"$cleanup",cleanup);
    Replaceall(f->code,"$symname", iname);
    
    /* Dump out the function */
    Wrapper_print(f,f_wrappers);
    
    if (!Getattr(n,"sym:overloaded")) {
      /* Register the function with Tcl */
      Printv(cmd_tab, tab4, "{ SWIG_prefix \"", iname, "\", (swig_wrapper_func) ", Swig_name_wrapper(iname), ", NULL},\n", NIL);
    } else {
      if (!Getattr(n,"sym:nextSibling")) {
	/* Emit overloading dispatch function */

	int maxargs;
	String *dispatch = Swig_overload_dispatch(n,"return %s(clientData, interp, objc, objv);",&maxargs);
	
	/* Generate a dispatch wrapper for all overloaded functions */

	Wrapper *df      = NewWrapper();
	String  *dname   = Swig_name_wrapper(iname);

	Printv(df->def,	
	       "SWIGINTERN int\n", dname,
	       "(ClientData clientData SWIGUNUSED, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) {",
	       NIL);
	Printf(df->code,"Tcl_Obj *CONST *argv = objv+1;\n");
	Printf(df->code,"int argc = objc-1;\n");
	Printv(df->code,dispatch,"\n",NIL);
	Printf(df->code,"Tcl_SetResult(interp,(char *) \"No matching function for overloaded '%s'\", TCL_STATIC);\n", iname);
	Printf(df->code,"return TCL_ERROR;\n");
	Printv(df->code,"}\n",NIL);
	Wrapper_print(df,f_wrappers);
	Printv(cmd_tab, tab4, "{ SWIG_prefix \"", iname, "\", (swig_wrapper_func) ", dname, ", NULL},\n", NIL);
	DelWrapper(df);
	Delete(dispatch);
	Delete(dname);
      }
    }
    
    Delete(incode);
    Delete(cleanup);
    Delete(outarg);
    Delete(argstr);
    Delete(args);
    DelWrapper(f);
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * variableWrapper()
   * ------------------------------------------------------------ */

  virtual int variableWrapper(Node *n) {

    String *name  = Getattr(n,"name");
    String *iname = Getattr(n,"sym:name");
    SwigType *t = Getattr(n,"type");

    String *setname = 0;
    String *getname = 0;
    Wrapper *setf = 0, *getf = 0;
    int readonly = 0;
    String *tm;

    if (!addSymbol(iname,n)) return SWIG_ERROR;

  /* Create a function for getting a variable */
    getf = NewWrapper();
    getname = Swig_name_get(iname);
    Printv(getf->def,"SWIGINTERN char *",getname,"(ClientData clientData SWIGUNUSED, Tcl_Interp *interp, char *name1, char *name2, int flags) {",NIL);
    Wrapper_add_local(getf,"value", "Tcl_Obj *value = 0");

    if ((tm = Swig_typemap_lookup_new("varout",n,name,0))) {
      Replaceall(tm,"$source", name);
      Replaceall(tm,"$target","value");
      Replaceall(tm,"$result", "value");
      Printf(getf->code, "%s\n",tm);
      Printf(getf->code, "if (value) {\n");
      Printf(getf->code, "Tcl_SetVar2(interp,name1,name2,Tcl_GetStringFromObj(value,NULL), flags);\n");
      Printf(getf->code, "Tcl_DecrRefCount(value);\n");
      Printf(getf->code, "}\n");
      Printf(getf->code, "return NULL;\n");
      Printf(getf->code,"}\n");
      Wrapper_print(getf,f_wrappers);
    } else {
      Swig_warning(WARN_TYPEMAP_VAROUT_UNDEF, input_file, line_number, 
		   "Unable to read variable of type %s\n", SwigType_str(t,0));
      DelWrapper(getf);
      return SWIG_NOWRAP;
    }
    DelWrapper(getf);

  /* Try to create a function setting a variable */
    if (is_assignable(n)) {
      setf = NewWrapper();
      setname = Swig_name_set(iname);
      Printv(setf->def,"SWIGINTERN char *",setname, "(ClientData clientData SWIGUNUSED, Tcl_Interp *interp, char *name1, char *name2 SWIGUNUSED, int flags) {",NIL);
      Wrapper_add_local(setf,"value", "Tcl_Obj *value = 0");
      Wrapper_add_local(setf,"name1o", "Tcl_Obj *name1o = 0");

      if ((tm = Swig_typemap_lookup_new("varin", n, name, 0))) {
	Replaceall(tm,"$source","value");
	Replaceall(tm,"$target",name);
	Replaceall(tm,"$input", "value");
	Printf(setf->code,"name1o = Tcl_NewStringObj(name1,-1);\n");
	Printf(setf->code,"value = Tcl_ObjGetVar2(interp, name1o, 0, flags);\n");
	Printf(setf->code,"Tcl_DecrRefCount(name1o);\n");
	Printf(setf->code,"if (!value) return NULL;\n");
	Printf(setf->code,"%s\n", tm);
	Printf(setf->code,"return NULL;\n");
	Printf(setf->code,"fail:\n");
	Printf(setf->code,"return \"%s\";\n", iname);
	Printf(setf->code,"}\n");
	if (setf) Wrapper_print(setf,f_wrappers);  
      } else {
	Swig_warning(WARN_TYPEMAP_VARIN_UNDEF,input_file, line_number,
		     "Unable to set variable of type %s.\n", SwigType_str(t,0));
	readonly = 1;
      }
      DelWrapper(setf);
    } else {
      readonly = 1;
    }
    

    Printv(var_tab, tab4,"{ SWIG_prefix \"", iname, "\", 0, (swig_variable_func) ", getname, ",", NIL);
    if (readonly) {
      static int readonlywrap = 0;
      if (!readonlywrap) {
	Wrapper *ro = NewWrapper();
	Printf(ro->def, "SWIGINTERN const char *swig_readonly(ClientData clientData SWIGUNUSED, Tcl_Interp *interp SWIGUNUSED, char *name1 SWIGUNUSED, char *name2 SWIGUNUSED, int flags SWIGUNUSED) {");
	Printv(ro->code, "return (char*) \"Variable is read-only\";\n", "}\n", NIL);
	Wrapper_print(ro,f_wrappers);
	readonlywrap = 1;
	DelWrapper(ro);
      }
      Printf(var_tab, "(swig_variable_func) swig_readonly},\n");
    } else {
      Printv(var_tab, "(swig_variable_func) ", setname, "},\n",NIL);
    }
    Delete(setname);
    Delete(getname);
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * constantWrapper()
   * ------------------------------------------------------------ */

  virtual int constantWrapper(Node *n) {
    String *name      = Getattr(n,"name");
    String *iname     = Getattr(n,"sym:name");
    String *nsname    = !nspace ? Copy(iname) : NewStringf("%s::%s",ns_name,iname);
    SwigType *type    = Getattr(n,"type");
    String *rawval    = Getattr(n,"rawval");
    String *value     = rawval ? rawval : Getattr(n,"value");
    String *tm;

    if (!addSymbol(iname,n)) return SWIG_ERROR;

    /* Special hook for member pointer */
    if (SwigType_type(type) == T_MPOINTER) {
      String *wname = Swig_name_wrapper(iname);
      Printf(f_wrappers, "static %s = %s;\n", SwigType_str(type,wname), value);
      value = Char(wname);
    }
    
    if ((tm = Swig_typemap_lookup_new("consttab",n,name,0))) {
      Replaceall(tm,"$source",value);
      Replaceall(tm,"$target",name);
      Replaceall(tm,"$value",value);
      Replaceall(tm,"$nsname",nsname);
      Printf(const_tab,"%s,\n", tm);
    } else if ((tm = Swig_typemap_lookup_new("constcode", n, name, 0))) {
      Replaceall(tm,"$source", value);
      Replaceall(tm,"$target", name);
      Replaceall(tm,"$value",value);
      Replaceall(tm,"$nsname",nsname);
      Printf(f_init, "%s\n", tm);
    } else {
      Delete(nsname);
      Swig_warning(WARN_TYPEMAP_CONST_UNDEF,
		   input_file, line_number, "Unsupported constant value.\n");
      return SWIG_NOWRAP;
    }
    Delete(nsname);
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * nativeWrapper()
   * ------------------------------------------------------------ */

  virtual int nativeWrapper(Node *n) {
    String *name = Getattr(n,"sym:name");
    String *funcname = Getattr(n,"wrap:name");
    if (!addSymbol(funcname,n)) return SWIG_ERROR;

    Printf(f_init,"\t Tcl_CreateObjCommand(interp, SWIG_prefix \"%s\", (swig_wrapper_func) %s, (ClientData) NULL, (Tcl_CmdDeleteProc *) NULL);\n",name, funcname);
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * classHandler()
   * ------------------------------------------------------------ */

  virtual int classHandler(Node *n) {
    static Hash* emitted = NewHash();
    String     *mangled_classname = 0;
    String     *real_classname = 0;

    have_constructor = 0;
    have_destructor = 0;
    destructor_action = 0;

    if (itcl) {
      constructor = NewString("");
      destructor =  NewString("");
      base_classes = NewString("");
      base_class_init = NewString("");
      methods =  NewString("");
      imethods =  NewString("");
      attributes = NewString("");
      attribute_traces = NewString("");
      iattribute_traces = NewString("");

      have_base_classes = 0;
      have_methods = 0;
      have_attributes = 0;
    }

    class_name = Getattr(n,"sym:name");
    if (!addSymbol(class_name,n)) return SWIG_ERROR;

    real_classname = Getattr(n,"name");
    mangled_classname = Swig_name_mangle(real_classname);

    if (Getattr(emitted,mangled_classname)) return SWIG_NOWRAP;
    Setattr(emitted,mangled_classname,"1");    

    attr_tab = NewString("");
    Printf(attr_tab, "static swig_attribute swig_");
    Printv(attr_tab, mangled_classname, "_attributes[] = {\n", NIL);
  
    methods_tab = NewStringf("");
    Printf(methods_tab,"static swig_method swig_");
    Printv(methods_tab, mangled_classname, "_methods[] = {\n", NIL);

  /* Generate normal wrappers */
    Language::classHandler(n);

    SwigType *t = Copy(Getattr(n,"name"));
    SwigType_add_pointer(t);
  
    // Catch all: eg. a class with only static functions and/or variables will not have 'remembered'
    // SwigType_remember(t);
    String *wrap_class = NewStringf("&_wrap_class_%s", mangled_classname);
    SwigType_remember_clientdata(t,wrap_class);

    //    t = Copy(Getattr(n,"classtype"));
    //    SwigType_add_pointer(t);

    String *rt = Copy(Getattr(n,"classtype"));
    SwigType_add_pointer(rt);

    // Register the class structure with the type checker
    /*    Printf(f_init,"SWIG_TypeClientData(SWIGTYPE%s, (void *) &_wrap_class_%s);\n", SwigType_manglestr(t), mangled_classname); */
    if (have_destructor) {
      Printv(f_wrappers, "SWIGINTERN void swig_delete_", class_name, "(void *obj) {\n", NIL);
      if (destructor_action) {
	Printv(f_wrappers, SwigType_str(rt,"arg1"), " = (", SwigType_str(rt,0), ") obj;\n", NIL);
	Printv(f_wrappers, destructor_action, NIL);
      } else {
	if (CPlusPlus) {
	  Printv(f_wrappers,"    delete (", SwigType_str(rt,0), ") obj;\n",NIL);
	} else {
	  Printv(f_wrappers,"    free((char *) obj);\n",NIL);
	}
      }
      Printf(f_wrappers,"}\n");
    }
  
    Printf(methods_tab, "    {0,0}\n};\n");
    Printv(f_wrappers,methods_tab,NIL);
  
    Printf(attr_tab, "    {0,0,0}\n};\n");
    Printv(f_wrappers,attr_tab,NIL);
  
    /* Handle inheritance */
  
    String *base_class = NewString("");
    String *base_class_names = NewString("");

    if( itcl ) {
      base_classes    = NewString("");
    }

    List *baselist = Getattr(n,"bases");
    if (baselist && Len(baselist)) {
      Iterator b;
      int index = 0;
      b = First(baselist);
      while (b.item) {
	String *bname = Getattr(b.item, "name");
	if ((!bname) || GetFlag(b.item,"feature:ignore") || (!Getattr(b.item,"module"))) {
	  b = Next(b);
	  continue;
	}
        if( itcl ) {
          have_base_classes = 1;
          Printv( base_classes, bname, " ", NIL );
          Printv( base_class_init , "    ", bname, "Ptr::constructor $ptr\n", NIL );
        } 
	String *bmangle = Swig_name_mangle(bname);
	//	Printv(f_wrappers,"extern swig_class _wrap_class_", bmangle, ";\n", NIL);
	//	Printf(base_class,"&_wrap_class_%s",bmangle);
	Printf(base_class,"0");
	Printf(base_class_names,"\"%s *\",", SwigType_namestr(bname));
	/* Put code to register base classes in init function */
	
	//Printf(f_init,"/* Register base : %s */\n", bmangle);
	//Printf(f_init,"swig_%s_bases[%d] = (swig_class *) SWIG_TypeQuery(\"%s *\")->clientdata;\n",  mangled_classname, index, SwigType_namestr(bname));
	b = Next(b);
	index++;
	Putc(',',base_class);
	Delete(bmangle);
      }
    }
    
    if( itcl ) {
      String *ptrclass = NewString("");

      // First, build the pointer base class
      Printv( ptrclass, "itcl::class ", class_name,"Ptr {\n",  NIL );
      if( have_base_classes )
        Printv( ptrclass, "  inherit ", base_classes, "\n", NIL );

      //  Define protected variables for SWIG object pointer
      Printv( ptrclass, "  protected variable swigobj\n", 
                        "  protected variable thisown\n", NIL );

      //  Define public variables
      if ( have_attributes ) {
        Printv( ptrclass, attributes, NIL );

      // base class swig_getset was being called for complex inheritance trees
        if ( nspace ) {

          Printv( ptrclass, 
              "  protected method ", class_name, "_swig_getset {var name1 name2 op} {\n" , NIL );

          Printv( ptrclass, 
              "    switch -exact -- $op {\n",
              "      r {set $var [", ns_name, "::", class_name, "_[set var]_get $swigobj]}\n",
              "      w {", ns_name, "::", class_name, "_${var}_set $swigobj [set $var]}\n",
              "    }\n",
              "  }\n" , NIL );
        } else {
          Printv( ptrclass,
              "  protected method ", class_name, "_swig_getset {var name1 name2 op} {\n",
              "    switch -exact -- $op {\n",
              "      r {set $var [", class_name, "_[set var]_get $swigobj]}\n",
              "      w {", class_name, "_${var}_set $swigobj [set $var]}\n",
              "    }\n",
              "  }\n", NIL );
        }
      }

      //  Add the constructor, which may include
      //  calls to base class class constructors

      Printv( ptrclass, "  constructor { ptr } {\n", NIL );
      if( have_base_classes ) {
        Printv( ptrclass, base_class_init, NIL );
        Printv( ptrclass, "  } {\n", NIL );
      }

      Printv( ptrclass, "    set swigobj $ptr\n",
                        "    set thisown 0\n", NIL );

      if( have_attributes ) {
        Printv( ptrclass, attribute_traces, NIL );
      }
      Printv( ptrclass, "  }\n", NIL );


      //  Add destructor
      Printv( ptrclass, "  destructor {\n",
                        "    set d_func delete_", class_name, "\n",
                        "    if { $thisown && ([info command $d_func] != \"\") } {\n"
                        "      $d_func $swigobj\n",
                        "    }\n",
                        "  }\n", NIL );

      //  Add methods
      if( have_methods ) {
        Printv( ptrclass, imethods, NIL );
      };

      //  Close out the pointer class
      Printv( ptrclass, "}\n\n",  NIL );
      Printv( f_shadow, ptrclass, NIL );
      // pointer class end

    
      //  Create the "real" class.
      Printv( f_shadow, "itcl::class ", class_name," {\n",  NIL );
      Printv( f_shadow, "  inherit ", class_name,"Ptr\n",  NIL );

      //  If we have a constructor, then use it.
      //  If not, then we must have an abstract class without
      //  any constructor.  So we create a class constructor
      //  which will fail for this class (but not for inherited
      //  classes).  Note that the constructor must fail before
      //  calling the ptrclass constructor.

      if ( have_constructor ) {
        Printv( f_shadow, constructor, NIL );
      } else {
        Printv( f_shadow, "  constructor { } {\n", NIL );
        Printv( f_shadow, "    # This constructor will fail if called directly\n", NIL );
        Printv( f_shadow, "    if { [info class] == \"::", class_name, "\" } {\n", NIL );
        Printv( f_shadow, "      error \"No constructor for class ", class_name, "\"\n", NIL );
        Printv( f_shadow, "    }\n", NIL );
        Printv( f_shadow, "  }\n", NIL );
      }

      Printv( f_shadow, "}\n\n", NIL );
    };

    Printv(f_wrappers,"static swig_class *swig_",mangled_classname,"_bases[] = {", base_class,"0};\n", NIL);
    Printv(f_wrappers,"static char *swig_",mangled_classname,"_base_names[] = {", base_class_names,"0};\n", NIL);
    Delete(base_class);
    Delete(base_class_names);

    Printv(f_wrappers, "static swig_class _wrap_class_", mangled_classname, " = { \"", class_name,
	   "\", &SWIGTYPE", SwigType_manglestr(t), ",",NIL);
  
    if (have_constructor) {
      Printf(f_wrappers,"%s", Swig_name_wrapper(Swig_name_construct(constructor_name)));
      Delete(constructor_name);
      constructor_name = 0;
    } else {
      Printf(f_wrappers,"0");
    }
    if (have_destructor) {
      Printv(f_wrappers, ", swig_delete_", class_name,NIL);
    } else {
      Printf(f_wrappers,",0");
    }
    Printv(f_wrappers, ", swig_", mangled_classname, "_methods, swig_", mangled_classname, "_attributes, swig_", mangled_classname,"_bases,",
		         "swig_", mangled_classname, "_base_names, &swig_module };\n", NIL);

    if( !itcl ) {
      Printv(cmd_tab, tab4, "{ SWIG_prefix \"", class_name, "\", (swig_wrapper_func) SWIG_ObjectConstructor, (ClientData)&_wrap_class_", mangled_classname, "},\n", NIL);
    };

    Delete(t);
    Delete(mangled_classname);
    return SWIG_OK;
  }


  /* ------------------------------------------------------------
   * memberfunctionHandler()
   * ------------------------------------------------------------ */

  virtual int memberfunctionHandler(Node *n) {
    String *name  = Getattr(n,"name");
    String *iname = GetChar(n,"sym:name");

    String  *realname, *rname;

    Language::memberfunctionHandler(n);

    realname = iname ? iname : name;
    rname = Swig_name_wrapper(Swig_name_member(class_name, realname));
    if (!Getattr(n,"sym:nextSibling")) {
      Printv(methods_tab, tab4, "{\"", realname, "\", ", rname, "}, \n", NIL);
    }

    if( itcl ) {
      ParmList  *l      = Getattr(n,"parms");
      Parm      *p      = 0;
      String    *pname  = NewString("");

      // Add this member to our class handler function
      Printv( imethods, tab2, "method ", realname, " [list ", NIL );

      int pnum = 0;
      for (p = l; p; p = nextSibling(p)) {

        String    *pn = Getattr(p,"name");
        String    *dv = Getattr(p,"value");
        SwigType  *pt = Getattr(p,"type");

              Printv( pname, ",(", pt, ")", NIL );
        Clear( pname );

        /* Only print an argument if not void */      
        if (Cmp(pt,"void") != 0) {
          if( Len( pn ) > 0 ) {
            Printv( pname, pn, NIL );
          } else {
            Printf( pname, "p%d", pnum );
          }

          if( Len( dv ) > 0 ) {
            String      *defval = NewString( dv );
            if( nspace ) {
              Insert( defval, 0, "::");
              Insert( defval, 0, ns_name );
            }
            if( Strncmp( dv, "(", 1 ) == 0 ) {
              Insert( defval, 0, "$");
              Replaceall( defval, "(", "");
              Replaceall( defval, ")", "");
            }
            Printv( imethods, "[list ", pname, " ", defval, "] ", NIL );
          } else {
            Printv( imethods, pname, " ", NIL );
          }
        }
        ++pnum;
      }
      Printv( imethods, "] ", NIL );

      if( nspace ) {
        Printv( imethods,"{ ", ns_name, "::", class_name, "_", realname, " $swigobj" , NIL );
      } else {
        Printv( imethods,"{ ", class_name, "_", realname, " $swigobj" , NIL );
      };

      pnum = 0;
      for (p = l; p; p = nextSibling(p)) {

        String    *pn = Getattr(p,"name");
        SwigType  *pt = Getattr(p,"type");
        Clear( pname );

        /* Only print an argument if not void */      
        if (Cmp(pt,"void") != 0) {
          if( Len( pn ) > 0 ) {
            Printv( pname, pn, NIL );
          } else {
            Printf( pname, "p%d", pnum );
          }
          Printv( imethods, " $", pname, NIL );
        }
        ++pnum;
      }
      Printv( imethods, " }\n", NIL );
      have_methods = 1;
    }

    Delete(rname);
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * membervariableHandler()
   * ------------------------------------------------------------ */

  virtual int membervariableHandler(Node *n) {
    String   *symname = Getattr(n,"sym:name");
    String   *rname;
    
    Language::membervariableHandler(n);
    Printv(attr_tab, tab4, "{ \"-", symname, "\",", NIL);
    rname = Swig_name_wrapper(Swig_name_get(Swig_name_member(class_name,symname)));
    Printv(attr_tab, rname, ", ", NIL);
    Delete(rname);
    if (!GetFlag(n,"feature:immutable")) {
      rname = Swig_name_wrapper(Swig_name_set(Swig_name_member(class_name,symname)));
      Printv(attr_tab, rname, "},\n",NIL);
      Delete(rname);
    } else {
      Printf(attr_tab, "0 },\n");
    }

    if( itcl ) {
      Printv( attributes, "  public variable ", symname, "\n", NIL );

      Printv( attribute_traces, "    trace variable ", symname, 
          " rw [list ", class_name, "_swig_getset ", symname, "]\n", NIL );
      Printv( attribute_traces, "    set ", symname, "\n", NIL );

      have_attributes = 1;
    }
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * constructorHandler()
   * ------------------------------------------------------------ */

  virtual int constructorHandler(Node *n) {
    Language::constructorHandler(n);

    if( itcl ) {
      String *name  = Getattr(n,"name");
      String *iname = GetChar(n,"sym:name");

      String  *realname;

      ParmList *l = Getattr(n,"parms");
      Parm  *p = 0;

      String *pname = NewString("");

      realname = iname ? iname : name;

      if( !have_constructor ) {
        // Add this member to our class handler function
        Printf( constructor, "  constructor { " );

        //  Add parameter list
        int pnum = 0;
        for (p = l; p; p = nextSibling(p)) 
        {

          SwigType  *pt = Getattr(p,"type");
          String    *pn = Getattr(p,"name");
          String    *dv = Getattr(p,"value");
          Clear( pname );

          /* Only print an argument if not void */      
          if (Cmp(pt,"void") != 0) {
            if( Len( pn ) > 0 ) {
              Printv( pname, pn, NIL );
            } else {
              Printf( pname, "p%d", pnum );
            }

            if( Len( dv ) > 0 ) {
              Printv( constructor, "{", pname, " {", dv, "} } ", NIL );
            } else {
              Printv( constructor, pname, " ", NIL );
            }
          }
          ++pnum;
        }
        Printf( constructor, "} { \n" );

        // [BRE] 08/17/00 Added test to see if we are instantiating this object
        // type, or, if this constructor is being called as part of the itcl
        // inheritance heirarchy.
        // In the former case, we need to call the C++ constructor, in the
        // latter we don't, or we end up with two C++ objects.
        // Check to see if we are instantiating a 'realname' or something 
        // derived from it.
        //
        Printv( constructor, "    if { [string equal -nocase \"", realname,
        "\" \"[namespace tail [info class]]\" ] } {\n", NIL );

        // Call to constructor wrapper and parent Ptr class
        // [BRE] add -namespace/-prefix support
        
        if( nspace ) {
          Printv( constructor, "      ", realname, "Ptr::constructor [",  
              ns_name, "::new_", realname, NIL );
        } else {
          Printv( constructor, "      ", realname, "Ptr::constructor [new_", realname, NIL );
        }

        pnum = 0;
        for (p = l; p; p = nextSibling(p)) {

          SwigType  *pt = Getattr(p,"type");
          String    *pn = Getattr(p,"name");
          Clear( pname );

          /* Only print an argument if not void */      
          if (Cmp(pt,"void") != 0) {
            if( Len( pn ) > 0 ) {
              Printv( pname, pn, NIL );
            } else {
              Printf( pname, "p%d", pnum );
            }
            Printv( constructor, " $", pname, NIL );
          }
          ++pnum;
        }

        Printv( constructor, "]\n", 
            "    }\n", 
            "  } {\n", 
            "    set thisown 1\n", 
            "  }\n", NIL );
      }
    }

    constructor_name = NewString(Getattr(n, "sym:name"));
    have_constructor = 1;
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * destructorHandler()
   * ------------------------------------------------------------ */

  virtual int destructorHandler(Node *n) {
    Language::destructorHandler(n);
    have_destructor = 1;
    destructor_action = Getattr(n,"wrap:action");
    return SWIG_OK;
  }

  /* ------------------------------------------------------------
   * validIdentifier()
   * ------------------------------------------------------------ */

  virtual int validIdentifier(String *s) {
    if (Strchr(s,' ')) return 0;
    return 1;
  }

  /* ------------------------------------------------------------
   * usage_string()
   * ------------------------------------------------------------ */

  char *
  usage_string(char *iname, SwigType *, ParmList *l) {
    static String *temp = 0;
    Parm  *p;
    int   i, numopt,pcount;
    
    if (!temp) temp = NewString("");
    Clear(temp);
    if (nspace) {
      Printf(temp,"%s::%s", ns_name,iname);
    } else {
      Printf(temp,"%s ", iname);
    }
    /* Now go through and print parameters */
    i = 0;
    pcount = emit_num_arguments(l);
    numopt = pcount - emit_num_required(l);
    for (p = l; p; p = nextSibling(p)) {
      
      SwigType  *pt = Getattr(p,"type");
      String    *pn = Getattr(p,"name");
      /* Only print an argument if not ignored */      
      if (!checkAttribute(p,"tmap:in:numinputs","0")) {
	if (i >= (pcount-numopt))
	  Putc('?',temp);
	if (Len(pn) > 0) {
	  Printf(temp, "%s",pn);
	} else {
	  Printf(temp,"%s", SwigType_str(pt,0));
	}
	if (i >= (pcount-numopt))	Putc('?',temp);
	Putc(' ',temp);
	i++;
      }
    }
    return Char(temp);
  }

  String *runtimeCode() {
    String *s = Swig_include_sys("swigtcl8.swg");
    if (!s) {
      Printf(stderr, "*** Unable to open 'swigtcl8.swg'\n");
      s = NewString("");
    }
    return s;
  }

  String *defaultExternalRuntimeFilename() {
    return NewString("swigtclrun.h");
  }
};

/* ----------------------------------------------------------------------
 * swig_tcl()    - Instantiate module
 * ---------------------------------------------------------------------- */

static Language * new_swig_tcl() {
  return new TCL8();
}
extern "C" Language * swig_tcl(void) {
  return new_swig_tcl();
}