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1 /*******************************************************************************
2 * Simplified Wrapper and Interface Generator (SWIG)
3 *
4 * Author : David Beazley
5 *
6 * Department of Computer Science
7 * University of Chicago
8 * 1100 E 58th Street
9 * Chicago, IL 60637
10 * beazley@cs.uchicago.edu
11 *
12 * Please read the file LICENSE for the copyright and terms by which SWIG
13 * can be used and distributed.
14 *******************************************************************************/
15 /***********************************************************************
16 * $Header$
17 *
18 * swig.h
19 *
20 * This is the header file containing the main class definitions and
21 * declarations. Should be included in all extensions and code
22 * modules.
23 *
24 ***********************************************************************/
25
26 #ifndef __swig_h_
27 #define __swig_h_
28
29 #include <stdlib.h>
30 #include <stdio.h>
31 #include <string.h>
32
33 #include "swigver.h"
34
35 /* Global variables. Needs to be cleaned up */
36
37 #ifdef MACSWIG
38 #define Status Swig_Status
39 #undef stderr
40 #define stderr swig_log
41 extern FILE *swig_log;
42 #endif
43
44 extern FILE *f_header; // Some commonly used
45 extern FILE *f_wrappers; // FILE pointers
46 extern FILE *f_init;
47 extern FILE *f_input;
48 extern char InitName[256];
49 extern char LibDir[512]; // Library directory
50 extern char **InitNames; // List of other init functions
51 extern int Status; // Variable creation status
52 extern int TypeStrict; // Type checking strictness
53 extern int Verbose;
54 extern int yyparse();
55 extern int line_number;
56 extern int start_line;
57 extern char *input_file; // Current input file
58 extern int CPlusPlus; // C++ mode
59 extern int ObjC; // Objective-C mode
60 extern int ObjCClass; // Objective-C style class
61 extern int AddMethods; // AddMethods mode
62 extern int NewObject; // NewObject mode
63 extern int Inline; // Inline mode
64 extern int NoInclude; // NoInclude flag
65 extern char *typemap_lang; // Current language name
66 extern int error_count;
67 extern char *copy_string(char *);
68 extern char output_dir[512]; // Output directory
69
70 #define FatalError() if ((error_count++) > 20) { fprintf(stderr,"Confused by earlier errors. Bailing out\n"); SWIG_exit(1); }
71
72 /* Miscellaneous stuff */
73
74 #define STAT_READONLY 1
75 #define MAXSCOPE 16
76
77 extern char* getSwigLib();
78
79 // -----------------------------------------------------------------------
80 // String class
81 // -----------------------------------------------------------------------
82
83 class String {
84 private:
85 int maxsize; // Max size of current string
86 void add(const char *newstr); // Function to add a new string
87 void add(char c); // Add a character
88 void insert(const char *newstr);
89 int len;
90 public:
91 String();
92 String(const char *s);
93 ~String();
94 char *get() const;
95 char *str; // String data
96 friend String& operator<<(String&,const char *s);
97 friend String& operator<<(String&,const int);
98 friend String& operator<<(String&,const char);
99 friend String& operator<<(String&,String&);
100 friend String& operator>>(const char *s, String&);
101 friend String& operator>>(String&,String&);
102 String& operator=(const char *);
103 operator char*() const { return str; }
104 void untabify();
105 void replace(const char *token, const char *rep);
106 void replaceid(const char *id, const char *rep);
107 void strip();
108 };
109
110 #define tab2 " "
111 #define tab4 " "
112 #define tab8 " "
113 #define br "\n"
114 #define endl "\n"
115 #define quote "\""
116
117 // -------------------------------------------------------------------
118 // Hash table class
119 // -------------------------------------------------------------------
120
121 class Hash {
122 private:
123 struct Node {
124 Node(const char *k, void *obj, void (*d)(void *)) {
125 key = new char[strlen(k)+1];
126 strcpy(key,k);
127 object = obj;
128 del_proc = d;
129 next = 0;
130 };
131 ~Node() {
132 delete key;
133 if (del_proc) (*del_proc)(object);
134 };
135 char *key;
136 void *object;
137 struct Node *next;
138 void (*del_proc)(void *);
139 };
140 int h1(const char *key); // Hashing function
141 int hashsize; // Size of hash table
142 Node **hashtable; // Actual hash table
143 int index; // Current index (used by iterators)
144 Node *current; // Current item in hash table
145 public:
146 Hash();
147 ~Hash();
148 int add(const char *key, void *object);
149 int add(const char *key, void *object, void (*del)(void *));
150 void *lookup(const char *key);
151 void remove(const char *key);
152 void *first();
153 void *next();
154 char *firstkey();
155 char *nextkey();
156 };
157
158 /************************************************************************
159 * class DataType
160 *
161 * Defines the basic datatypes supported by the translator.
162 *
163 ************************************************************************/
164
165 #define T_INT 1
166 #define T_SHORT 2
167 #define T_LONG 3
168 #define T_UINT 4
169 #define T_USHORT 5
170 #define T_ULONG 6
171 #define T_UCHAR 7
172 #define T_SCHAR 8
173 #define T_BOOL 9
174 #define T_DOUBLE 10
175 #define T_FLOAT 11
176 #define T_CHAR 12
177 #define T_USER 13
178 #define T_VOID 14
179 #define T_SYMBOL 98
180 #define T_ERROR 99
181
182 // These types are now obsolete, but defined for backwards compatibility
183
184 #define T_SINT 90
185 #define T_SSHORT 91
186 #define T_SLONG 92
187
188 // Class for storing data types
189
190 #define MAX_NAME 96
191
192 class DataType {
193 private:
194 static Hash *typedef_hash[MAXSCOPE];
195 static int scope;
196 public:
197 int type; // SWIG Type code
198 char name[MAX_NAME]; // Name of type
199 char is_pointer; // Is this a pointer?
200 char implicit_ptr; // Implicit ptr
201 char is_reference; // A C++ reference type
202 char status; // Is this datatype read-only?
203 char *qualifier; // A qualifier string (ie. const).
204 char *arraystr; // String containing array part
205 int id; // type identifier (unique for every type).
206 DataType();
207 DataType(DataType *);
208 DataType(int type);
209 ~DataType();
210 void primitive(); // Turn a datatype into its primitive type
211 char *print_type(); // Return string containing datatype
212 char *print_full(); // Return string with full datatype
213 char *print_cast(); // Return string for type casting
214 char *print_mangle();// Return mangled version of type
215 char *print_real(char *local=0); // Print the real datatype (as far as we can determine)
216 char *print_arraycast(); // Prints an array cast
217 char *print_mangle_default(); // Default mangling scheme
218
219 // Array query functions
220 int array_dimensions(); // Return number of array dimensions (if any)
221 char *get_dimension(int); // Return string containing a particular dimension
222 char *get_array(); // Returns the array string for a datatype
223
224 // typedef support
225
226 void typedef_add(char *name, int mode = 0); // Add this type to typedef list
227 void typedef_resolve(int level = 0); // See if this type has been typedef'd
228 void typedef_replace(); // Replace this type with it's original type
229 static int is_typedef(char *name); // See if this is a typedef
230 void typedef_updatestatus(int newstatus); // Change status of a typedef
231 static void init_typedef(void); // Initialize typedef manager
232 static void merge_scope(Hash *h); // Functions for managing scoping of datatypes
233 static void new_scope(Hash *h = 0);
234 static Hash *collapse_scope(char *);
235 int check_defined(); // Check to see if type is defined by a typedef.
236 };
237
238 #define STAT_REPLACETYPE 2
239
240 /************************************************************************
241 * class Parm
242 *
243 * Structure for holding information about function parameters
244 *
245 * CALL_VALUE --> Call by value even though function parameter
246 * is a pointer.
247 * ex : foo(&_arg0);
248 * CALL_REF --> Call by reference even though function parameter
249 * is by value
250 * ex : foo(*_arg0);
251 *
252 ************************************************************************/
253
254 #define CALL_VALUE 0x01
255 #define CALL_REFERENCE 0x02
256 #define CALL_OUTPUT 0x04
257
258 struct Parm {
259 DataType *t; // Datatype of this parameter
260 int call_type; // Call type (value or reference or value)
261 char *name; // Name of parameter (optional)
262 char *defvalue; // Default value (as a string)
263 int ignore; // Ignore flag
264 char *objc_separator; // Parameter separator for Objective-C
265 Parm(DataType *type, char *n);
266 Parm(Parm *p);
267 ~Parm();
268 };
269
270 // -------------------------------------------------------------
271 // class ParmList
272 //
273 // This class is used for manipulating parameter lists in
274 // function and type declarations.
275 // -------------------------------------------------------------
276
277 #define MAXPARMS 16
278
279 class ParmList {
280 private:
281 int maxparms; // Max parms possible in current list
282 Parm **parms; // Pointer to parms array
283 void moreparms(); // Increase number of stored parms
284 int current_parm; // Internal state for get_first,get_next
285 public:
286 int nparms; // Number of parms in list
287 void append(Parm *p); // Append a parameter to the end
288 void insert(Parm *p, int pos); // Insert a parameter into the list
289 void del(int pos); // Delete a parameter at position pos
290 int numopt(); // Get number of optional arguments
291 int numarg(); // Get number of active arguments
292 Parm *get(int pos); // Get the parameter at position pos
293 Parm &operator[](int); // An alias for get().
294 ParmList();
295 ParmList(ParmList *l);
296 ~ParmList();
297
298 // Keep this for backwards compatibility
299
300 Parm *get_first(); // Get first parameter from list
301 Parm *get_next(); // Get next parameter from list
302 void print_types(FILE *f); // Print list of datatypes
303 void print_types(String &f); // Generate list of datatypes.
304 void print_args(FILE *f); // Print argument list
305 int check_defined(); // Checks to make sure the arguments are defined
306 void sub_parmnames(String &s); // Remaps real parameter names in code fragment
307 };
308
309 // Modes for different types of inheritance
310
311 #define INHERIT_FUNC 0x1
312 #define INHERIT_VAR 0x2
313 #define INHERIT_CONST 0x4
314 #define INHERIT_ALL (INHERIT_FUNC | INHERIT_VAR | INHERIT_CONST)
315
316 struct Pragma {
317 Pragma() { next = 0; }
318 String filename;
319 int lineno;
320 String lang;
321 String name;
322 String value;
323 Pragma *next;
324 };
325
326 /************************************************************************
327 * class language:
328 *
329 * This class defines the functions that need to be supported by the
330 * scripting language being used. The translator calls these virtual
331 * functions to output different types of code for different languages.
332 *
333 * By implementing this using virtual functions, hopefully it will be
334 * easy to support different types of scripting languages.
335 *
336 * The following functions are used :
337 *
338 * parse_args(argc, argv)
339 * Parse the arguments used by this language.
340 *
341 * parse()
342 * Entry function that starts parsing of a particular language
343 *
344 * create_function(fname, iname, rtype, parmlist)
345 * Creates a function wrappper.
346 *
347 * link_variable(vname, iname, type)
348 * Creates a link to a variable.
349 *
350 * declare_const(cname, type, value)
351 * Creates a constant (for #define).
352 *
353 * initialize(char *fn)
354 * Produces initialization code.
355 *
356 * headers()
357 * Produce code for headers
358 *
359 * close()
360 * Close up files
361 *
362 * usage_var(iname,type,string)
363 * Produces usage string for variable declaration.
364 *
365 * usage_func(iname,rttype, parmlist, string)
366 * Produces usage string for function declaration.
367 *
368 * usage_const(iname, type, value, string)
369 * Produces usage string for constants
370 *
371 * set_module(char *modname)
372 * Sets the name of the module (%module directive)
373 *
374 * set_init(char *initname)
375 * Sets name of initialization function (an alternative to set_module)
376 * add_native(char *name, char *funcname);
377 * Adds a native wrapper function to the initialize process
378 *
379 * type_mangle(DataType *t);
380 * Mangles the name of a datatype.
381 * --- C++ Functions ---
382 *
383 * These functions are optional additions to any of the target
384 * languages. SWIG handles inheritance, symbol tables, and other
385 * information.
386 *
387 * cpp_open_class(char *classname, char *rname)
388 * Open a new C++ class definition.
389 * cpp_close_class(char *)
390 * Close current C++ class
391 * cpp_member_func(char *name, char *rname, DataType *rt, ParmList *l)
392 * Create a C++ member function
393 * cpp_constructor(char *name, char *iname, ParmList *l)
394 * Create a C++ constructor.
395 * cpp_destructor(char *name, char *iname)
396 * Create a C++ destructor
397 * cpp_variable(char *name, char *iname, DataType *t)
398 * Create a C++ member data item.
399 * cpp_declare_const(char *name, char *iname, int type, char *value)
400 * Create a C++ constant.
401 * cpp_inherit(char *baseclass)
402 * Inherit data from baseclass.
403 * cpp_static_func(char *name, char *iname, DataType *t, ParmList *l)
404 * A C++ static member function.
405 * cpp_static_var(char *name, char *iname, DataType *t)
406 * A C++ static member data variable.
407 *
408 *************************************************************************/
409
410 class Language {
411 public:
412 virtual void parse_args(int argc, char *argv[]) = 0;
413 virtual void parse() = 0;
414 virtual void create_function(char *, char *, DataType *, ParmList *) = 0;
415 virtual void link_variable(char *, char *, DataType *) = 0;
416 virtual void declare_const(char *, char *, DataType *, char *) = 0;
417 virtual void initialize(void) = 0;
418 virtual void headers(void) = 0;
419 virtual void close(void) = 0;
420 virtual void set_module(char *mod_name,char **mod_list) = 0;
421 virtual void set_init(char *init_name);
422 virtual void add_native(char *, char *);
423 virtual char *type_mangle(DataType *t) {
424 return t->print_mangle_default();
425 }
426 virtual void add_typedef(DataType *t, char *name);
427 virtual void create_command(char *cname, char *iname);
428
429 //
430 // C++ language extensions.
431 // You can redefine these, or use the defaults below
432 //
433
434 virtual void cpp_member_func(char *name, char *iname, DataType *t, ParmList *l);
435 virtual void cpp_constructor(char *name, char *iname, ParmList *l);
436 virtual void cpp_destructor(char *name, char *newname);
437 virtual void cpp_open_class(char *name, char *rename, char *ctype, int strip);
438 virtual void cpp_close_class();
439 virtual void cpp_cleanup();
440 virtual void cpp_inherit(char **baseclass, int mode = INHERIT_ALL);
441 virtual void cpp_variable(char *name, char *iname, DataType *t);
442 virtual void cpp_static_func(char *name, char *iname, DataType *t, ParmList *l);
443 virtual void cpp_declare_const(char *name, char *iname, DataType *type, char *value);
444 virtual void cpp_static_var(char *name, char *iname, DataType *t);
445 virtual void cpp_pragma(Pragma *plist);
446
447 // Pragma directive
448
449 virtual void pragma(char *, char *, char *);
450
451 // Declaration of a class, but not a full definition
452
453 virtual void cpp_class_decl(char *, char *, char *);
454
455 // Import directive
456
457 virtual void import(char *filename);
458
459 };
460
461 class Documentation;
462
463 // --------------------------------------------------------------------
464 // class DocEntry
465 //
466 // Base class for the documentation system. Basically everything is
467 // a documentation entry of some sort. Specific derived classes
468 // are created internally and shouldn't be accessed by third-party
469 // modules.
470 // --------------------------------------------------------------------
471
472 class DocEntry {
473 public:
474 char *name; // Name of the entry
475 String usage; // Short description (optional)
476 String cinfo; // Information about C interface (optional).
477 String text; // Supporting text (optional)
478 DocEntry *parent; // Parent of this entry (optional)
479 DocEntry *child; // Children of this entry (optional)
480 DocEntry *next; // Next entry (or sibling)
481 DocEntry *previous; // Previous entry
482 int counter; // Counter for section control
483 int is_separator; // Is this a separator entry?
484 int sorted; // Sorted?
485 int line_number; // Line number
486 int end_line; // Ending line number
487 int format; // Format this documentation entry
488 int print_info; // Print C information about this entry
489 char *file; // File
490 virtual ~DocEntry(); // Destructor (common to all subclasses)
491
492 // Methods applicable to all documentation entries
493
494 virtual void output(Documentation *d);
495 void add(DocEntry *de); // Add documentation entry to the list
496 void addchild(DocEntry *de); // Add documentation entry as a child
497 void sort_children(); // Sort all of the children
498 void remove(); // Remove this doc entry
499 void parse_args(int argc, char **argv); // Parse command line options
500 void style(char *name,char *value);// Change doc style.
501 static DocEntry *dead_entries; // Dead documentation entries
502 };
503
504 extern DocEntry *doc_entry;
505
506 // Default DocEntry style parameters
507
508 #define SWIGDEFAULT_SORT 0
509 #define SWIGDEFAULT_FORMAT 1
510 #define SWIGDEFAULT_INFO 1
511
512 // ----------------------------------------------------------------------
513 // Documentation module base class
514 //
515 // This class defines methods that need to be implemented for a
516 // documentation module.
517 //
518 // title() - Print out a title entry
519 // newsection() - Start a new section (may be nested to form subsections)
520 // endsection() - End a section
521 // print_decl() - Print a standard declaration
522 // print_text() - Print standard text
523 // init() - Initialize the documentation module
524 // close() - Close documentation module
525 // ----------------------------------------------------------------------
526
527 class Documentation {
528 public:
529 virtual void parse_args(int argc, char **argv) = 0;
530 virtual void title(DocEntry *de) = 0;
531 virtual void newsection(DocEntry *de, int sectnum) = 0;
532 virtual void endsection() = 0;
533 virtual void print_decl(DocEntry *de) = 0;
534 virtual void print_text(DocEntry *de) = 0;
535 virtual void separator() = 0;
536 virtual void init(char *filename) = 0;
537 virtual void close(void) = 0;
538 virtual void style(char *name, char *value) = 0;
539 };
540
541 /* Emit functions */
542
543 extern void emit_extern_var(char *, DataType *, int, FILE *);
544 extern void emit_extern_func(char *, DataType *, ParmList *, int, FILE *);
545 extern int emit_args(DataType *, ParmList *, FILE *);
546
547 extern void emit_func_call(char *, DataType *, ParmList *, FILE *);
548
549 extern void emit_hex(FILE *);
550 extern void emit_set_get(char *, char *, DataType *);
551 extern void emit_banner(FILE *);
552 extern void emit_ptr_equivalence(FILE *);
553 extern int SWIG_main(int, char **, Language *, Documentation *);
554 extern void make_wrap_name(char *);
555
556 // Some functions for emitting some C++ helper code
557
558 extern void cplus_emit_member_func(char *classname, char *classtype, char *classrename,
559 char *mname, char *mrename, DataType *type, ParmList *l,
560 int mode);
561
562 extern void cplus_emit_static_func(char *classname, char *classtype, char *classrename,
563 char *mname, char *mrename, DataType *type, ParmList *l,
564 int mode);
565
566 extern void cplus_emit_destructor(char *classname, char *classtype, char *classrename,
567 char *name, char *iname, int mode);
568
569 extern void cplus_emit_constructor(char *classname, char *classtype, char *classrename,
570 char *name, char *iname, ParmList *l, int mode);
571
572 extern void cplus_emit_variable_get(char *classname, char *classtype, char *classrename,
573 char *name, char *iname, DataType *type, int mode);
574
575 extern void cplus_emit_variable_set(char *classname, char *classtype, char *classrename,
576 char *name, char *iname, DataType *type, int mode);
577
578 extern char *cplus_base_class(char *name);
579
580 extern void cplus_support_doc(String &f);
581
582 /* Function for building search directories */
583
584 extern void add_directory(char *dirname);
585 extern int insert_file(char *, FILE *);
586 extern int get_file(char *filename, String &str);
587 extern int checkout_file(char *filename, char *dest);
588 extern int checkin_file(char *dir, char *lang, char *source, char *dest);
589 extern int include_file(char *filename);
590
591 /* Miscellaneous */
592
593 extern void check_options();
594 extern void init_args(int argc, char **);
595 extern void mark_arg(int n);
596 extern void arg_error();
597
598 extern void library_add(char *name);
599 extern void library_insert();
600
601 // -----------------------------------------------------------------------
602 // Class for Creating Wrapper Functions
603 // -----------------------------------------------------------------------
604
605 class WrapperFunction {
606 private:
607 Hash h;
608 public:
609 String def;
610 String locals;
611 String code;
612 String init;
613 void print(FILE *f);
614 void print(String &f);
615 void add_local(char *type, char *name, char *defvalue = 0);
616 char *new_local(char *type, char *name, char *defvalue = 0);
617 static void del_type(void *obj);
618 };
619
620 extern int emit_args(DataType *, ParmList *, WrapperFunction &f);
621 extern void emit_func_call(char *, DataType *, ParmList *, WrapperFunction &f);
622 extern void SWIG_exit(int);
623
624 // Symbol table management
625
626 extern int add_symbol(char *, DataType *, char *);
627 extern void remove_symbol(char *);
628 extern int update_symbol(char *, DataType *, char *);
629 extern char *lookup_symvalue(char *);
630 extern DataType *lookup_symtype(char *);
631 extern int lookup_symbol(char *);
632
633 // -----------------------------------------------------------------------
634 // Typemap support
635 // -----------------------------------------------------------------------
636
637 extern void typemap_register(char *op, char *lang, DataType *type, char *pname, char *code, ParmList *l = 0);
638 extern void typemap_register(char *op, char *lang, char *type, char *pname, char *code,ParmList *l = 0);
639 extern void typemap_register_default(char *op, char *lang, int type, int ptr, char *arraystr, char *code, ParmList *l = 0);
640 extern char *typemap_lookup(char *op, char *lang, DataType *type, char *pname, char *source, char *target,
641 WrapperFunction *f = 0);
642 extern void typemap_clear(char *op, char *lang, DataType *type, char *pname);
643 extern void typemap_copy(char *op, char *lang, DataType *stype, char *sname, DataType *ttype, char *tname);
644 extern char *typemap_check(char *op, char *lang, DataType *type, char *pname);
645 extern void typemap_apply(DataType *tm_type, char *tmname, DataType *type, char *pname);
646 extern void typemap_clear_apply(DataType *type, char *pname);
647
648
649 // -----------------------------------------------------------------------
650 // Code fragment support
651 // -----------------------------------------------------------------------
652
653 extern void fragment_register(char *op, char *lang, char *code);
654 extern char *fragment_lookup(char *op, char *lang, int age);
655 extern void fragment_clear(char *op, char *lang);
656
657
658 extern void emit_ptr_equivalence(WrapperFunction &);
659
660 // -----------------------------------------------------------------------
661 // Naming system
662 // -----------------------------------------------------------------------
663
664 #define AS_IS 1
665
666 extern void name_register(char *method, char *format);
667 extern int name_scope(int);
668 extern char *name_wrapper(char *fname, char *prefix, int suppress=0);
669 extern char *name_member(char *fname, char *classname, int suppress=0);
670 extern char *name_get(char *vname, int suppress=0);
671 extern char *name_set(char *vname, int suppress=0);
672 extern char *name_construct(char *classname, int suppress=0);
673 extern char *name_destroy(char *classname, int suppress=0);
674
675
676 #endif