]>
Commit | Line | Data |
---|---|---|
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 | /*********************************************************************** | |
17 | * $Header$ | |
18 | * | |
19 | * guile.cxx | |
20 | * | |
21 | * Definitions for adding functions to Guile 3.0 | |
22 | ***********************************************************************/ | |
23 | ||
24 | #include "swig.h" | |
25 | #include "guile.h" | |
26 | ||
27 | static char *guile_usage = "\ | |
28 | Guile Options (available with -guile)\n\ | |
29 | None available. \n\n"; | |
30 | ||
31 | // --------------------------------------------------------------------- | |
32 | // GUILE::parse_args(int argc, char *argv[]) | |
33 | // | |
34 | // Parse arguments. | |
35 | // --------------------------------------------------------------------- | |
36 | ||
37 | void GUILE::parse_args(int argc, char *argv[]) { | |
38 | ||
39 | int i; | |
40 | ||
41 | sprintf(LibDir,"%s",guile_path); | |
42 | ||
43 | // Look for certain command line options | |
44 | ||
45 | // Look for additional command line options. | |
46 | for (i = 1; i < argc; i++) { | |
47 | if (argv[i]) { | |
48 | if (strcmp(argv[i],"-help") == 0) { | |
49 | fputs(guile_usage,stderr); | |
50 | SWIG_exit(0); | |
51 | } | |
52 | } | |
53 | } | |
54 | // Add a symbol for this module | |
55 | ||
56 | add_symbol("SWIGGUILE",0,0); | |
57 | ||
58 | // Set name of typemaps | |
59 | ||
60 | typemap_lang = "guile"; | |
61 | ||
62 | } | |
63 | ||
64 | // -------------------------------------------------------------------- | |
65 | // GUILE::parse() | |
66 | // | |
67 | // Parse the input file | |
68 | // -------------------------------------------------------------------- | |
69 | ||
70 | void GUILE::parse() | |
71 | { | |
72 | ||
73 | printf("Generating wrappers for Guile\n"); | |
74 | ||
75 | // Print out GUILE specific headers | |
76 | ||
77 | headers(); | |
78 | ||
79 | // Run the parser | |
80 | ||
81 | yyparse(); | |
82 | ||
83 | } | |
84 | ||
85 | // --------------------------------------------------------------------- | |
86 | // GUILE::set_module(char *mod_name) | |
87 | // | |
88 | // Sets the module name. | |
89 | // Does nothing if it's already set (so it can be overridden as a command | |
90 | // line option). | |
91 | // | |
92 | //---------------------------------------------------------------------- | |
93 | ||
94 | void GUILE::set_module(char *mod_name, char **) { | |
95 | ||
96 | if (module) return; | |
97 | ||
98 | module = new char[strlen(mod_name)+1]; | |
99 | strcpy(module,mod_name); | |
100 | ||
101 | } | |
102 | ||
103 | // --------------------------------------------------------------------- | |
104 | // GUILE::set_init(char *iname) | |
105 | // | |
106 | // Sets the initialization function name. | |
107 | // Does nothing if it's already set | |
108 | // | |
109 | //---------------------------------------------------------------------- | |
110 | ||
111 | void GUILE::set_init(char *iname) { | |
112 | set_module(iname,0); | |
113 | } | |
114 | ||
115 | // --------------------------------------------------------------------- | |
116 | // GUILE::headers(void) | |
117 | // | |
118 | // Generate the appropriate header files for GUILE interface. | |
119 | // ---------------------------------------------------------------------- | |
120 | ||
121 | void GUILE::headers(void) | |
122 | { | |
123 | ||
124 | emit_banner(f_header); | |
125 | ||
126 | fprintf(f_header,"/* Implementation : GUILE */\n\n"); | |
127 | fprintf(f_header,"#define SWIGGUILE\n"); | |
128 | fprintf(f_header,"#include <stdio.h>\n"); | |
129 | fprintf(f_header,"#include <string.h>\n"); | |
130 | fprintf(f_header,"#include <stdlib.h>\n"); | |
131 | ||
132 | // Write out hex conversion functions | |
133 | ||
134 | if (!NoInclude) { | |
135 | if (insert_file("guile.swg", f_header) == -1) { | |
136 | fprintf(stderr,"SWIG : Fatal error. Unable to locate 'guile.swg' in SWIG library.\n"); | |
137 | SWIG_exit(1); | |
138 | } | |
139 | emit_hex(f_header); | |
140 | } else { | |
141 | fprintf(f_header,"#ifdef __cplusplus\n"); | |
142 | fprintf(f_header,"extern \"C\" {\n"); | |
143 | fprintf(f_header,"#endif\n"); | |
144 | fprintf(f_header,"extern void SWIG_MakePtr(char *, void *, char *);\n"); | |
145 | fprintf(f_header,"extern void SWIG_RegisterMapping(char *, char *, void *(*)(void *));\n"); | |
146 | fprintf(f_header,"extern char *SWIG_GetPtr(char *, void **, char *);\n"); | |
147 | fprintf(f_header,"#ifdef __cplusplus\n"); | |
148 | fprintf(f_header,"}\n"); | |
149 | fprintf(f_header,"#endif\n"); | |
150 | } | |
151 | } | |
152 | ||
153 | // -------------------------------------------------------------------- | |
154 | // GUILE::initialize() | |
155 | // | |
156 | // Output initialization code that registers functions with the | |
157 | // interface. | |
158 | // --------------------------------------------------------------------- | |
159 | void GUILE::initialize() | |
160 | { | |
161 | ||
162 | int i; | |
163 | ||
164 | if (!module) { | |
165 | module = "swig_init"; | |
166 | fprintf(stderr,"SWIG : *** Warning. No module name specified.\n"); | |
167 | } | |
168 | ||
169 | fprintf(f_header,"#define SWIG_init %s\n\n", module); | |
170 | fprintf(f_init,"void %s() {\n", module); | |
171 | ||
172 | if (InitNames) { | |
173 | i = 0; | |
174 | while (InitNames[i]) { | |
175 | fprintf(f_init,"\t %s();\n",InitNames[i]); | |
176 | i++; | |
177 | } | |
178 | } | |
179 | } | |
180 | ||
181 | // --------------------------------------------------------------------- | |
182 | // GUILE::close(void) | |
183 | // | |
184 | // Wrap things up. Close initialization function. | |
185 | // --------------------------------------------------------------------- | |
186 | ||
187 | void GUILE::close(void) | |
188 | { | |
189 | ||
190 | emit_ptr_equivalence(f_init); | |
191 | fprintf(f_init,"}\n"); | |
192 | ||
193 | } | |
194 | ||
195 | // ---------------------------------------------------------------------- | |
196 | // GUILE::get_pointer(int parm, DataType *t) | |
197 | // | |
198 | // Emits code to get a pointer from a parameter and do type checking. | |
199 | // parm is the parameter number. This function is only used | |
200 | // in create_function(). | |
201 | // ---------------------------------------------------------------------- | |
202 | ||
203 | void GUILE::get_pointer(char *iname, int parm, DataType *t) { | |
204 | ||
205 | // Pointers are read as hex-strings with encoded type information | |
206 | fprintf(f_wrappers,"\t _tempc = gh_scm2newstr(s_%d, &_len);\n",parm); | |
207 | fprintf(f_wrappers,"\t if (SWIG_GetPtr(_tempc, (void **) &_arg%d,",parm); | |
208 | if (t->type == T_VOID) fprintf(f_wrappers,"(char *) 0)) {\n"); | |
209 | else | |
210 | fprintf(f_wrappers,"\"%s\")) {\n", t->print_mangle()); | |
211 | ||
212 | // Now emit code according to the level of strictness desired | |
213 | ||
214 | switch(TypeStrict) { | |
215 | case 0: // No type checking | |
216 | fprintf(f_wrappers,"\t}\n"); | |
217 | break; | |
218 | case 1: // Warning message only | |
219 | fprintf(f_wrappers, | |
220 | "\t fprintf(stderr,\"Warning : type mismatch in argument %d of %s. Expected %s, received %%s\\n\", _tempc);\n", parm+1,iname, t->print_mangle()); | |
221 | fprintf(f_wrappers,"\t }\n"); | |
222 | break; | |
223 | case 2: // Super strict mode. | |
224 | ||
225 | // fprintf(f_wrappers,"\t\t gscm_error(\"Type error in argument %d of %s. Expected %s.\", s_%d);\n", parm+1,iname,t->print_mangle(),parm); | |
226 | fprintf(f_wrappers,"\t}\n"); | |
227 | break; | |
228 | ||
229 | default : | |
230 | fprintf(stderr,"Unknown strictness level\n"); | |
231 | break; | |
232 | } | |
233 | } | |
234 | ||
235 | // ---------------------------------------------------------------------- | |
236 | // GUILE::create_function(char *name, char *iname, DataType *d, | |
237 | // ParmList *l) | |
238 | // | |
239 | // Create a function declaration and register it with the interpreter. | |
240 | // ---------------------------------------------------------------------- | |
241 | ||
242 | void GUILE::create_function(char *name, char *iname, DataType *d, ParmList *l) | |
243 | { | |
244 | ||
245 | Parm *p; | |
246 | int pcount; | |
247 | char wname[256]; | |
248 | char source[64]; | |
249 | char target[64]; | |
250 | char *tm; | |
251 | String cleanup; | |
252 | int need_len = 0; | |
253 | int need_tempc = 0; | |
254 | ||
255 | // Make a wrapper name for this | |
256 | ||
257 | strcpy(wname,iname); | |
258 | make_wrap_name(wname); | |
259 | ||
260 | // Now write the wrapper function itself....this is pretty ugly | |
261 | ||
262 | fprintf(f_wrappers,"SCM _wrap_gscm_%s(",wname); | |
263 | ||
264 | int i = 0; | |
265 | p = l->get_first(); | |
266 | while (p != 0) { | |
267 | if (p->t->is_pointer) | |
268 | need_len = 1; | |
269 | if ((p->t->type != T_CHAR) && (p->t->is_pointer)) | |
270 | need_tempc = 1; | |
271 | ||
272 | if ((p->t->type != T_VOID) || (p->t->is_pointer)) | |
273 | fprintf(f_wrappers,"SCM s_%d", i); | |
274 | if ((p = l->get_next())) | |
275 | fprintf(f_wrappers,", "); | |
276 | i++; | |
277 | } | |
278 | fprintf(f_wrappers,")\n{\n"); | |
279 | ||
280 | // Declare return variable and arguments | |
281 | ||
282 | pcount = emit_args(d,l,f_wrappers); | |
283 | ||
284 | // Now declare a few helper variables here | |
285 | if (d->is_pointer && (d->type != T_CHAR) && | |
286 | !typemap_lookup("out","guile",d,name,"_result","scmresult")) | |
287 | fprintf(f_wrappers," char _ptemp[128];\n"); | |
288 | if (need_tempc) | |
289 | fprintf(f_wrappers," char *_tempc;\n"); | |
290 | if (need_len) | |
291 | fprintf(f_wrappers," int _len;\n"); | |
292 | fprintf(f_wrappers," SCM scmresult; /* fun1 */\n"); | |
293 | ||
294 | // Now write code to extract the parameters(this is super ugly) | |
295 | ||
296 | i = 0; | |
297 | p = l->get_first(); | |
298 | while (p != 0) { | |
299 | // Produce names of source and target | |
300 | sprintf(source,"s_%d",i); | |
301 | sprintf(target,"_arg%d",i); | |
302 | ||
303 | if ((tm = typemap_lookup("in","guile",p->t,p->name,source,target))) { | |
304 | // Yep. Use it instead of the default | |
305 | fprintf(f_wrappers,"%s\n", tm); | |
306 | } else { | |
307 | if (!p->t->is_pointer) { | |
308 | switch(p->t->type) { | |
309 | ||
310 | // Signed Integers | |
311 | ||
312 | case T_INT : | |
313 | case T_SINT : | |
314 | case T_SHORT: | |
315 | case T_SSHORT: | |
316 | case T_LONG: | |
317 | case T_SLONG: | |
318 | case T_SCHAR: | |
319 | fprintf(f_wrappers,"\t _arg%d = %s gh_scm2long(s_%d);\n",i, p->t->print_cast(), i); | |
320 | break; | |
321 | ||
322 | // Unsigned Integers | |
323 | ||
324 | case T_UINT: | |
325 | case T_USHORT: | |
326 | case T_ULONG: | |
327 | case T_UCHAR: | |
328 | fprintf(f_wrappers,"\t _arg%d = %s gh_scm2ulong(s_%d);\n", i, p->t->print_cast(), i); | |
329 | break; | |
330 | ||
331 | // A single character | |
332 | ||
333 | case T_CHAR : | |
334 | fprintf(f_wrappers,"\t _arg%d = %s gh_scm2char(s_%d);\n", i, p->t->print_cast(), i); | |
335 | break; | |
336 | ||
337 | // Floating point | |
338 | ||
339 | case T_DOUBLE : | |
340 | case T_FLOAT: | |
341 | fprintf(f_wrappers,"\t _arg%d = %s gh_scm2double(s_%d);\n", i, p->t->print_cast(), i); | |
342 | break; | |
343 | ||
344 | // Void.. Do nothing. | |
345 | ||
346 | case T_VOID : | |
347 | break; | |
348 | ||
349 | // This is some sort of user-defined call by value type. We're | |
350 | // going to try and wing it here.... | |
351 | ||
352 | case T_USER: | |
353 | ||
354 | // User defined type not allowed by value. | |
355 | ||
356 | default : | |
357 | fprintf(stderr,"%s : Line %d. Unable to use type %s as a function argument.\n", | |
358 | input_file, line_number, p->t->print_type()); | |
359 | break; | |
360 | } | |
361 | } else { | |
362 | ||
363 | // Argument is a pointer type. Special case is for char * | |
364 | // since that is usually a string. | |
365 | ||
366 | if ((p->t->type == T_CHAR) && (p->t->is_pointer == 1)) { | |
367 | fprintf(f_wrappers,"\t _arg%d = gh_scm2newstr(s_%d, &_len);\n",i,i); | |
368 | } else { | |
369 | ||
370 | // Have a generic pointer type here. | |
371 | ||
372 | get_pointer(iname, i, p->t); | |
373 | } | |
374 | } | |
375 | } | |
376 | if ((tm = typemap_lookup("check","guile",p->t,p->name,source,target))) { | |
377 | // Yep. Use it instead of the default | |
378 | fprintf(f_wrappers,"%s\n",tm); | |
379 | } | |
380 | if ((tm = typemap_lookup("freearg","guile",p->t,p->name,target,"scmresult"))) { | |
381 | // Yep. Use it instead of the default | |
382 | cleanup << tm << "\n"; | |
383 | } | |
384 | p = l->get_next(); | |
385 | i++; | |
386 | } | |
387 | ||
388 | // Now write code to make the function call | |
389 | ||
390 | fprintf(f_wrappers,"\t SCM_DEFER_INTS;\n"); | |
391 | emit_func_call(name,d,l,f_wrappers); | |
392 | ||
393 | fprintf(f_wrappers,"\t SCM_ALLOW_INTS;\n"); | |
394 | // Now have return value, figure out what to do with it. | |
395 | ||
396 | if ((d->type != T_VOID) || (d->is_pointer)) { | |
397 | if ((tm = typemap_lookup("out","guile",d,name,"_result","scmresult"))) { | |
398 | // Yep. Use it instead of the default | |
399 | fprintf(f_wrappers,"%s\n",tm); | |
400 | } else { | |
401 | if (!d->is_pointer) { | |
402 | switch(d->type) { | |
403 | case T_INT: case T_SINT: | |
404 | case T_SHORT: case T_SSHORT: | |
405 | case T_LONG: case T_SLONG: | |
406 | case T_SCHAR: | |
407 | fprintf(f_wrappers,"\t scmresult = gh_long2scm((long) _result);\n"); | |
408 | break; | |
409 | case T_UINT: | |
410 | case T_USHORT: | |
411 | case T_ULONG: | |
412 | case T_UCHAR: | |
413 | fprintf(f_wrappers,"\t scmresult = gh_ulong2scm((unsigned long) _result);\n"); | |
414 | break; | |
415 | case T_DOUBLE : | |
416 | case T_FLOAT: | |
417 | fprintf(f_wrappers,"\t scmresult = gh_double2scm((double) _result);\n"); | |
418 | break; | |
419 | case T_CHAR : | |
420 | fprintf(f_wrappers,"\t scmresult = gh_char2scm(_result);\n"); | |
421 | break; | |
422 | default: | |
423 | fprintf(stderr,"%s : Line %d: Unable to use return type %s in function %s.\n", | |
424 | input_file, line_number, d->print_type(), name); | |
425 | break; | |
426 | } | |
427 | } else { | |
428 | ||
429 | // Is a pointer return type | |
430 | ||
431 | if ((d->type == T_CHAR) && (d->is_pointer == 1)) { | |
432 | fprintf(f_wrappers,"\t scmresult = gh_str02scm(_result);\n"); | |
433 | } else { | |
434 | ||
435 | // Is an ordinary pointer type. | |
436 | ||
437 | fprintf(f_wrappers,"\t SWIG_MakePtr(_ptemp, _result,\"%s\");\n", | |
438 | d->print_mangle()); | |
439 | fprintf(f_wrappers,"\t scmresult = gh_str02scm(_ptemp);\n"); | |
440 | } | |
441 | } | |
442 | } | |
443 | } else { | |
444 | /* Some void type. Need to return something. I'll return 1 */ | |
445 | fprintf(f_wrappers,"\t scmresult = gh_int2scm(1);\n"); | |
446 | } | |
447 | ||
448 | // Dump the argument cleanup code | |
449 | fprintf(f_wrappers,"%s\n",cleanup.get()); | |
450 | ||
451 | // Look for any remaining cleanup | |
452 | ||
453 | if (NewObject) { | |
454 | if ((tm = typemap_lookup("newfree","guile",d,iname,"_result",""))) { | |
455 | fprintf(f_wrappers,"%s\n",tm); | |
456 | } | |
457 | } | |
458 | ||
459 | if ((tm = typemap_lookup("ret","guile",d,name,"_result",""))) { | |
460 | // Yep. Use it instead of the default | |
461 | fprintf(f_wrappers,"%s\n",tm); | |
462 | } | |
463 | ||
464 | // Wrap things up (in a manner of speaking) | |
465 | ||
466 | fprintf(f_wrappers,"\t return scmresult;\n"); | |
467 | fprintf(f_wrappers,"}\n"); | |
468 | ||
469 | // Now register the function | |
470 | fprintf(f_init,"\t gh_new_procedure(\"%s\", _wrap_gscm_%s, %d, 0, 0);\n", | |
471 | iname, wname, pcount); | |
472 | ||
473 | // Make a documentation entry for this | |
474 | ||
475 | if (doc_entry) { | |
476 | static DocEntry *last_doc_entry = 0; | |
477 | char *usage = 0; | |
478 | usage_func(iname,d,l,&usage); | |
479 | doc_entry->usage << usage; | |
480 | if (last_doc_entry != doc_entry) { | |
481 | doc_entry->cinfo << "returns " << d->print_type(); | |
482 | last_doc_entry = doc_entry; | |
483 | } | |
484 | delete usage; | |
485 | } | |
486 | } | |
487 | ||
488 | // ----------------------------------------------------------------------- | |
489 | // GUILE::link_variable(char *name, char *iname, DataType *d) | |
490 | // | |
491 | // Create a link to a C variable. | |
492 | // This creates a single function _wrap_gscm_var_varname(). | |
493 | // This function takes a single optional argument. If supplied, it means | |
494 | // we are setting this variable to some value. If ommitted, it means we are | |
495 | // simply evaluating this variable. Either way, we return the variables | |
496 | // value. | |
497 | // ----------------------------------------------------------------------- | |
498 | ||
499 | void GUILE::link_variable(char *name, char *iname, DataType *t) | |
500 | { | |
501 | ||
502 | char var_name[256]; | |
503 | char *tm; | |
504 | char *tm2 = typemap_lookup("varout","guile",t,name,name,"scmresult"); | |
505 | ||
506 | // evaluation function names | |
507 | ||
508 | sprintf(var_name,"_wrap_gscm_var_%s",iname); | |
509 | ||
510 | if ((t->type != T_USER) || (t->is_pointer)) { | |
511 | ||
512 | fprintf(f_wrappers,"SCM %s(SCM s_0) {\n", var_name); | |
513 | ||
514 | if (!(Status & STAT_READONLY) && (t->is_pointer)) { | |
515 | fprintf(f_wrappers,"\t char *_temp;\n"); | |
516 | fprintf(f_wrappers,"\t int _len;\n"); | |
517 | } | |
518 | ||
519 | if (tm2) { | |
520 | fprintf(f_wrappers,"\t char _ptemp[128];\n"); | |
521 | } | |
522 | fprintf(f_wrappers,"\t SCM scmresult; /* fun2 */\n"); | |
523 | ||
524 | // Check for a setting of the variable value | |
525 | ||
526 | fprintf(f_wrappers,"\t if (s_0 != GH_NOT_PASSED) {\n"); | |
527 | ||
528 | // Yup. Extract the type from s_0 and set variable value | |
529 | if (Status & STAT_READONLY) { | |
530 | // fprintf(f_wrappers,"\t\t gscm_error(\"Unable to set %s. Variable is read only.\", s_0);\n", iname); | |
531 | } else { | |
532 | if ((tm = typemap_lookup("varin","guile",t,name,"s_0",name))) { | |
533 | // Yep. Use it instead of the default | |
534 | fprintf(f_wrappers,"%s\n",tm); | |
535 | } else { | |
536 | if (!t->is_pointer) { | |
537 | ||
538 | switch(t->type) { | |
539 | // Signed Integer | |
540 | ||
541 | case T_INT: case T_SINT: | |
542 | case T_SHORT: case T_SSHORT: | |
543 | case T_LONG: case T_SLONG: | |
544 | case T_SCHAR: | |
545 | fprintf(f_wrappers,"\t\t %s = %s gh_scm2long(s_0);\n",name, t->print_cast()); | |
546 | break; | |
547 | ||
548 | // Unsigned integer | |
549 | ||
550 | case T_UINT: | |
551 | case T_USHORT: | |
552 | case T_ULONG: | |
553 | case T_UCHAR: | |
554 | fprintf(f_wrappers,"\t\t %s = %s gh_scm2ulong(s_0);\n",name, t->print_cast()); | |
555 | break; | |
556 | ||
557 | // Floating point | |
558 | ||
559 | case T_FLOAT: | |
560 | case T_DOUBLE: | |
561 | fprintf(f_wrappers,"\t\t %s = %s gh_scm2double(s_0);\n",name, t->print_cast()); | |
562 | break; | |
563 | ||
564 | // Character value | |
565 | ||
566 | case T_CHAR: | |
567 | fprintf(f_wrappers,"\t\t %s = gh_scm2char(s_0);\n", name); | |
568 | break; | |
569 | ||
570 | // Unknown value | |
571 | ||
572 | default: | |
573 | fprintf(stderr,"Line %d. Error, unsupported data-type.\n", line_number); | |
574 | break; | |
575 | } | |
576 | } else { | |
577 | ||
578 | // Have some sort of pointer type here, Process it differently | |
579 | ||
580 | if ((t->type == T_CHAR) && (t->is_pointer == 1)) { | |
581 | fprintf(f_wrappers,"\t\t _temp = gh_scm2newstr(s_0, &_len);\n"); | |
582 | fprintf(f_wrappers,"\t\t if (%s) { free(%s);}\n", name,name); | |
583 | fprintf(f_wrappers,"\t\t %s = (char *) malloc((_len+1)*sizeof(char));\n",name); | |
584 | fprintf(f_wrappers,"\t\t strncpy(%s,_temp,_len);\n",name); | |
585 | fprintf(f_wrappers,"\t\t %s[_len] = 0;\n", name); | |
586 | } else { | |
587 | // Set the value of a pointer | |
588 | fprintf(f_wrappers,"\t\t _temp = gh_scm2newstr(s_0,&_len);\n"); | |
589 | fprintf(f_wrappers,"\t if (SWIG_GetPtr(_temp, (void **) &%s,",name); | |
590 | if (t->type == T_VOID) fprintf(f_wrappers,"(char *) 0)) {\n"); | |
591 | else | |
592 | fprintf(f_wrappers,"\"%s\")) {\n", t->print_mangle()); | |
593 | ||
594 | // Now emit code according to the level of strictness desired | |
595 | ||
596 | switch(TypeStrict) { | |
597 | case 0: // No type checking | |
598 | fprintf(f_wrappers,"\t}\n"); | |
599 | break; | |
600 | case 1: // Warning message only | |
601 | fprintf(f_wrappers, | |
602 | "\t fprintf(stderr,\"Warning : type mismatch in variable %s. Expected %s, received %%s\\n\", _temp);\n", name, t->print_mangle()); | |
603 | fprintf(f_wrappers,"\t }\n"); | |
604 | break; | |
605 | case 2: // Super strict mode. | |
606 | ||
607 | // fprintf(f_wrappers,"\t\t gscm_error(\"Type error in variable %s. Expected %s.\", s_0);\n", name,t->print_mangle()); | |
608 | fprintf(f_wrappers,"\t}\n"); | |
609 | break; | |
610 | ||
611 | default : | |
612 | fprintf(stderr,"Unknown strictness level\n"); | |
613 | break; | |
614 | } | |
615 | } | |
616 | } | |
617 | } | |
618 | } | |
619 | fprintf(f_wrappers,"\t}\n"); | |
620 | ||
621 | // Now return the value of the variable (regardless of evaluating or setting) | |
622 | ||
623 | if (tm2) { | |
624 | // Yep. Use it instead of the default | |
625 | fprintf(f_wrappers,"%s\n",tm); | |
626 | } else { | |
627 | if (!t->is_pointer) { | |
628 | /* Return variable by value */ | |
629 | ||
630 | switch(t->type) { | |
631 | ||
632 | // Signed Integer | |
633 | ||
634 | case T_INT: case T_SINT: | |
635 | case T_SHORT: case T_SSHORT: | |
636 | case T_LONG: case T_SLONG: | |
637 | case T_SCHAR: | |
638 | fprintf(f_wrappers,"\t scmresult = gh_long2scm((long) %s);\n", name); | |
639 | break; | |
640 | ||
641 | // Unsigned integer | |
642 | ||
643 | case T_UINT: | |
644 | case T_USHORT: | |
645 | case T_ULONG: | |
646 | case T_UCHAR: | |
647 | fprintf(f_wrappers,"\t scmresult = gh_ulong2scm((unsigned long) %s);\n",name); | |
648 | break; | |
649 | ||
650 | // Floats | |
651 | ||
652 | case T_DOUBLE: | |
653 | case T_FLOAT: | |
654 | fprintf(f_wrappers,"\t scmresult = gh_double2scm((double) %s);\n", name); | |
655 | break; | |
656 | case T_CHAR: | |
657 | fprintf(f_wrappers,"\t scmresult = gh_char2scm(%s);\n",name); | |
658 | break; | |
659 | default : | |
660 | /* Unknown type */ | |
661 | break; | |
662 | } | |
663 | } else { | |
664 | ||
665 | // Is a pointer return type | |
666 | ||
667 | if ((t->type == T_CHAR) && (t->is_pointer == 1)) { | |
668 | fprintf(f_wrappers,"\t scmresult = gh_str02scm(%s);\n",name); | |
669 | } else { | |
670 | // Is an ordinary pointer type. | |
671 | fprintf(f_wrappers,"\t SWIG_MakePtr(_ptemp, %s,\"%s\");\n",name, | |
672 | t->print_mangle()); | |
673 | fprintf(f_wrappers,"\t scmresult = gh_str02scm(_ptemp);\n"); | |
674 | } | |
675 | } | |
676 | } | |
677 | fprintf(f_wrappers,"\t return scmresult;\n"); | |
678 | fprintf(f_wrappers,"}\n"); | |
679 | ||
680 | // Now add symbol to the Guile interpreter | |
681 | ||
682 | fprintf(f_init,"\t gh_new_procedure(\"%s\", %s, 0, 1, 0);\n",iname, var_name); | |
683 | ||
684 | } else { | |
685 | fprintf(stderr,"%s : Line %d. ** Warning. Unable to link with type %s (ignored).\n", | |
686 | input_file, line_number, t->print_type()); | |
687 | } | |
688 | ||
689 | // Add a documentation entry | |
690 | ||
691 | if (doc_entry) { | |
692 | char *usage = 0; | |
693 | usage_var(iname,t,&usage); | |
694 | doc_entry->usage << usage; | |
695 | doc_entry->cinfo << "Global : " << t->print_type() << " " << name; | |
696 | delete usage; | |
697 | } | |
698 | ||
699 | } | |
700 | ||
701 | // ----------------------------------------------------------------------- | |
702 | // GUILE::declare_const(char *name, char *iname, DataType *type, char *value) | |
703 | // | |
704 | // Makes a constant. Not sure how this is really supposed to work. | |
705 | // I'm going to fake out SWIG and create a variable instead. | |
706 | // ------------------------------------------------------------------------ | |
707 | ||
708 | void GUILE::declare_const(char *name, char *, DataType *type, char *value) { | |
709 | ||
710 | int OldStatus = Status; // Save old status flags | |
711 | char var_name[256]; | |
712 | ||
713 | Status = STAT_READONLY; // Enable readonly mode. | |
714 | ||
715 | // Make a static variable; | |
716 | ||
717 | sprintf(var_name,"_wrap_const_%s",name); | |
718 | ||
719 | if ((type->type == T_USER) && (!type->is_pointer)) { | |
720 | fprintf(stderr,"%s : Line %d. Unsupported constant value.\n", input_file, line_number); | |
721 | return; | |
722 | } | |
723 | ||
724 | // Create variable and assign it a value | |
725 | ||
726 | fprintf(f_header,"static %s %s = ", type->print_type(), var_name); | |
727 | if ((type->type == T_CHAR) && (type->is_pointer <= 1)) { | |
728 | fprintf(f_header,"\"%s\";\n", value); | |
729 | } else { | |
730 | fprintf(f_header,"%s;\n", value); | |
731 | } | |
732 | ||
733 | // Now create a variable declaration | |
734 | ||
735 | link_variable(var_name, name, type); | |
736 | Status = OldStatus; | |
737 | ||
738 | if (doc_entry) { | |
739 | char *usage = 0; | |
740 | usage_const(name,type,value,&usage); | |
741 | doc_entry->usage = ""; | |
742 | doc_entry->usage << usage; | |
743 | doc_entry->cinfo = ""; | |
744 | doc_entry->cinfo << "Constant: " << type->print_type(); | |
745 | delete usage; | |
746 | } | |
747 | ||
748 | } | |
749 | ||
750 | // ---------------------------------------------------------------------- | |
751 | // GUILE::usage_var(char *iname, DataType *t, char **s) | |
752 | // | |
753 | // Produces a usage string for a Guile variable. | |
754 | // ---------------------------------------------------------------------- | |
755 | ||
756 | void GUILE::usage_var(char *iname, DataType *t, char **s) { | |
757 | ||
758 | char temp[1024], *c; | |
759 | ||
760 | sprintf(temp,"(%s)", iname); | |
761 | c = temp + strlen(temp); | |
762 | ||
763 | if (!((t->type != T_USER) || (t->is_pointer))) { | |
764 | sprintf(c," - unsupported"); | |
765 | } | |
766 | ||
767 | if (*s == 0) | |
768 | *s = new char[strlen(temp)+1]; | |
769 | strcpy(*s,temp); | |
770 | } | |
771 | ||
772 | // --------------------------------------------------------------------------- | |
773 | // GUILE::usage_func(char *iname, DataType *t, ParmList *l, char **s) | |
774 | // | |
775 | // Produces a usage string for a function in Guile | |
776 | // --------------------------------------------------------------------------- | |
777 | ||
778 | void GUILE::usage_func(char *iname, DataType *, ParmList *l, | |
779 | char **s) { | |
780 | ||
781 | char temp[1024]; | |
782 | char *c; | |
783 | int i; | |
784 | Parm *p; | |
785 | ||
786 | sprintf(temp,"(%s ", iname); | |
787 | c = temp + strlen(temp); | |
788 | ||
789 | /* Now go through and print parameters */ | |
790 | ||
791 | p = l->get_first(); | |
792 | while (p != 0) { | |
793 | ||
794 | /* If parameter has been named, use that. Otherwise, just print a type */ | |
795 | ||
796 | if ((p->t->type != T_VOID) || (p->t->is_pointer)) { | |
797 | if (strlen(p->name) > 0) { | |
798 | sprintf(c,"%s ",p->name); | |
799 | c += strlen(p->name)+1; | |
800 | } | |
801 | else { | |
802 | sprintf(c,"%s",p->t->name); | |
803 | c += strlen(p->t->name); | |
804 | if (p->t->is_pointer) { | |
805 | for (i = 0; i < (p->t->is_pointer-p->t->implicit_ptr); i++) { | |
806 | sprintf(c,"*"); | |
807 | c++; | |
808 | } | |
809 | } | |
810 | } | |
811 | } | |
812 | p = l->get_next(); | |
813 | if (p != 0) { | |
814 | sprintf(c," "); | |
815 | c++; | |
816 | } | |
817 | } | |
818 | sprintf(c,")"); | |
819 | if (*s == 0) | |
820 | *s = new char[strlen(temp)+1]; | |
821 | strcpy(*s,temp); | |
822 | } | |
823 | ||
824 | ||
825 | // ---------------------------------------------------------------------- | |
826 | // GUILE::usage_const(char *iname, DataType *type, char *value, char **s) | |
827 | // | |
828 | // Produces a usage string for a Guile constant | |
829 | // ---------------------------------------------------------------------- | |
830 | ||
831 | void GUILE::usage_const(char *iname, DataType *, char *value, char **s) { | |
832 | ||
833 | char temp[1024]; | |
834 | ||
835 | sprintf(temp,"(%s %s)", iname, value); | |
836 | ||
837 | if (*s == 0) | |
838 | *s = new char[strlen(temp)+1]; | |
839 | strcpy(*s,temp); | |
840 | ||
841 | } |