Commit | Line | Data |
59017825 |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
4 | |
dfabcbae |
5 | #define NEED_newRV_noinc |
6 | #define NEED_sv_2pv_flags |
7 | #include "ppport.h" |
8 | |
13f8a7b7 |
9 | #ifndef gv_fetchsv |
10 | #define gv_fetchsv(n,f,t) gv_fetchpv(SvPV_nolen(n), f, t) |
11 | #endif |
12 | |
13 | #ifndef mro_method_changed_in |
14 | #define mro_method_changed_in(x) PL_sub_generation++ |
15 | #endif |
16 | |
17 | #ifdef newSVhek |
18 | #define newSVhe(he) newSVhek(HeKEY_hek(he)) |
19 | #else |
3e37e315 |
20 | #define newSVhe(he) newSVpv(HePV(he, PL_na), 0) |
13f8a7b7 |
21 | #endif |
22 | |
23 | #ifndef savesvpv |
24 | #define savesvpv(s) savepv(SvPV_nolen(s)) |
25 | #endif |
26 | |
d551a208 |
27 | /* HACK: scalar slots are always populated on perl < 5.10, so treat undef |
28 | * as nonexistent. this is consistent with the previous behavior of the pure |
29 | * perl version of this module (since this is the behavior that perl sees |
30 | * in all versions */ |
31 | #if PERL_VERSION < 10 |
32 | #define GvSVOK(g) (GvSV(g) && SvTYPE(GvSV(g)) != SVt_NULL) |
33 | #else |
34 | #define GvSVOK(g) GvSV(g) |
35 | #endif |
36 | |
37 | #define GvAVOK(g) GvAV(g) |
38 | #define GvHVOK(g) GvHV(g) |
39 | #define GvCVOK(g) GvCVu(g) /* XXX: should this really be GvCVu? or GvCV? */ |
40 | #define GvIOOK(g) GvIO(g) |
41 | |
9aa6fe4f |
42 | /* see above - don't let scalar slots become unpopulated, this breaks |
43 | * assumptions in core */ |
3720d1a1 |
44 | #if PERL_VERSION < 10 |
45 | #define GvSetSV(g,v) do { \ |
46 | SV *_v = (SV*)(v); \ |
47 | SvREFCNT_dec(GvSV(g)); \ |
48 | if ((GvSV(g) = _v ? _v : newSV(0))) \ |
49 | GvIMPORTED_SV_on(g); \ |
50 | } while (0) |
51 | #else |
d551a208 |
52 | #define GvSetSV(g,v) do { \ |
53 | SvREFCNT_dec(GvSV(g)); \ |
54 | if ((GvSV(g) = (SV*)(v))) \ |
55 | GvIMPORTED_SV_on(g); \ |
56 | } while (0) |
3720d1a1 |
57 | #endif |
58 | |
d551a208 |
59 | #define GvSetAV(g,v) do { \ |
60 | SvREFCNT_dec(GvAV(g)); \ |
61 | if ((GvAV(g) = (AV*)(v))) \ |
62 | GvIMPORTED_AV_on(g); \ |
63 | } while (0) |
64 | #define GvSetHV(g,v) do { \ |
65 | SvREFCNT_dec(GvHV(g)); \ |
66 | if ((GvHV(g) = (HV*)(v))) \ |
67 | GvIMPORTED_HV_on(g); \ |
68 | } while (0) |
69 | #define GvSetCV(g,v) do { \ |
70 | SvREFCNT_dec(GvCV(g)); \ |
71 | if ((GvCV(g) = (CV*)(v))) { \ |
72 | GvIMPORTED_CV_on(g); \ |
73 | GvASSUMECV_on(g); \ |
74 | } \ |
75 | GvCVGEN(g) = 0; \ |
76 | mro_method_changed_in(GvSTASH(g)); \ |
77 | } while (0) |
78 | #define GvSetIO(g,v) do { \ |
79 | SvREFCNT_dec(GvIO(g)); \ |
80 | GvIOp(g) = (IO*)(v); \ |
81 | } while (0) |
82 | |
d1d0e437 |
83 | /* XXX: the core implementation of caller() is private, so we need a |
84 | * a reimplementation. luckily, padwalker already has done this. rafl says |
85 | * that there should be a public interface in 5.14, so maybe look into |
86 | * converting to use that at some point */ |
87 | #include "stolen_bits_of_padwalker.c" |
88 | |
a382a84b |
89 | typedef enum { |
90 | VAR_NONE = 0, |
91 | VAR_SCALAR, |
92 | VAR_ARRAY, |
93 | VAR_HASH, |
94 | VAR_CODE, |
95 | VAR_IO, |
96 | VAR_GLOB, /* TODO: unimplemented */ |
97 | VAR_FORMAT /* TODO: unimplemented */ |
98 | } vartype_t; |
99 | |
100 | typedef struct { |
101 | vartype_t type; |
a382a84b |
102 | char *name; |
64b79211 |
103 | I32 namelen; |
a382a84b |
104 | } varspec_t; |
105 | |
26f802f7 |
106 | static U32 name_hash, namespace_hash, type_hash; |
107 | static SV *name_key, *namespace_key, *type_key; |
108 | |
76f7c306 |
109 | const char *vartype_to_string(vartype_t type) |
110 | { |
111 | switch (type) { |
112 | case VAR_SCALAR: |
113 | return "SCALAR"; |
114 | case VAR_ARRAY: |
115 | return "ARRAY"; |
116 | case VAR_HASH: |
117 | return "HASH"; |
118 | case VAR_CODE: |
119 | return "CODE"; |
120 | case VAR_IO: |
121 | return "IO"; |
122 | default: |
123 | return "unknown"; |
124 | } |
125 | } |
126 | |
127 | I32 vartype_to_svtype(vartype_t type) |
128 | { |
129 | switch (type) { |
130 | case VAR_SCALAR: |
131 | return SVt_PV; /* or whatever */ |
132 | case VAR_ARRAY: |
133 | return SVt_PVAV; |
134 | case VAR_HASH: |
135 | return SVt_PVHV; |
136 | case VAR_CODE: |
137 | return SVt_PVCV; |
138 | case VAR_IO: |
139 | return SVt_PVIO; |
140 | default: |
141 | return SVt_NULL; |
142 | } |
143 | } |
144 | |
a382a84b |
145 | vartype_t string_to_vartype(char *vartype) |
146 | { |
147 | if (strEQ(vartype, "SCALAR")) { |
148 | return VAR_SCALAR; |
149 | } |
150 | else if (strEQ(vartype, "ARRAY")) { |
151 | return VAR_ARRAY; |
152 | } |
153 | else if (strEQ(vartype, "HASH")) { |
154 | return VAR_HASH; |
155 | } |
156 | else if (strEQ(vartype, "CODE")) { |
157 | return VAR_CODE; |
158 | } |
159 | else if (strEQ(vartype, "IO")) { |
160 | return VAR_IO; |
161 | } |
162 | else { |
163 | croak("Type must be one of 'SCALAR', 'ARRAY', 'HASH', 'CODE', or 'IO'"); |
164 | } |
165 | } |
166 | |
64b79211 |
167 | void _deconstruct_variable_name(SV *varsv, varspec_t *varspec) |
a382a84b |
168 | { |
64b79211 |
169 | char *variable; |
170 | STRLEN len; |
a382a84b |
171 | |
64b79211 |
172 | variable = SvPV(varsv, len); |
173 | if (!variable[0]) |
174 | croak("You must pass a variable name"); |
a382a84b |
175 | |
176 | switch (variable[0]) { |
177 | case '$': |
178 | varspec->type = VAR_SCALAR; |
64b79211 |
179 | varspec->name = &variable[1]; |
180 | varspec->namelen = len - 1; |
a382a84b |
181 | break; |
182 | case '@': |
183 | varspec->type = VAR_ARRAY; |
64b79211 |
184 | varspec->name = &variable[1]; |
185 | varspec->namelen = len - 1; |
a382a84b |
186 | break; |
187 | case '%': |
188 | varspec->type = VAR_HASH; |
64b79211 |
189 | varspec->name = &variable[1]; |
190 | varspec->namelen = len - 1; |
a382a84b |
191 | break; |
192 | case '&': |
193 | varspec->type = VAR_CODE; |
a382a84b |
194 | varspec->name = &variable[1]; |
64b79211 |
195 | varspec->namelen = len - 1; |
196 | break; |
197 | default: |
a382a84b |
198 | varspec->type = VAR_IO; |
a382a84b |
199 | varspec->name = variable; |
64b79211 |
200 | varspec->namelen = len; |
201 | break; |
a382a84b |
202 | } |
203 | } |
204 | |
205 | void _deconstruct_variable_hash(HV *variable, varspec_t *varspec) |
206 | { |
26f802f7 |
207 | HE *val; |
208 | char *valpv; |
209 | STRLEN len; |
a382a84b |
210 | |
26f802f7 |
211 | val = hv_fetch_ent(variable, name_key, 0, name_hash); |
a382a84b |
212 | if (!val) |
213 | croak("The 'name' key is required in variable specs"); |
214 | |
26f802f7 |
215 | valpv = HePV(val, len); |
216 | varspec->name = savepvn(valpv, len); |
301f570b |
217 | SAVEFREEPV(varspec->name); |
64b79211 |
218 | varspec->namelen = len; |
a382a84b |
219 | |
26f802f7 |
220 | val = hv_fetch_ent(variable, type_key, 0, type_hash); |
a382a84b |
221 | if (!val) |
222 | croak("The 'type' key is required in variable specs"); |
223 | |
26f802f7 |
224 | valpv = HePV(val, len); |
225 | varspec->type = string_to_vartype(valpv); |
a382a84b |
226 | } |
227 | |
228 | int _valid_for_type(SV *value, vartype_t type) |
229 | { |
230 | svtype sv_type = SvROK(value) ? SvTYPE(SvRV(value)) : SVt_NULL; |
231 | |
232 | switch (type) { |
233 | case VAR_SCALAR: |
234 | return sv_type == SVt_NULL || |
235 | sv_type == SVt_IV || |
236 | sv_type == SVt_NV || |
237 | sv_type == SVt_PV || |
238 | sv_type == SVt_RV; |
239 | case VAR_ARRAY: |
240 | return sv_type == SVt_PVAV; |
241 | case VAR_HASH: |
242 | return sv_type == SVt_PVHV; |
243 | case VAR_CODE: |
244 | return sv_type == SVt_PVCV; |
245 | case VAR_IO: |
76f7c306 |
246 | return sv_type == SVt_PVIO; |
a382a84b |
247 | default: |
248 | return 0; |
249 | } |
250 | } |
251 | |
3fd56b4d |
252 | HV *_get_namespace(SV *self) |
253 | { |
254 | dSP; |
255 | SV *ret; |
256 | |
257 | PUSHMARK(SP); |
258 | XPUSHs(self); |
259 | PUTBACK; |
260 | |
612dcf3b |
261 | call_method("namespace", G_SCALAR); |
3fd56b4d |
262 | |
263 | SPAGAIN; |
264 | ret = POPs; |
265 | PUTBACK; |
266 | |
267 | return (HV*)SvRV(ret); |
268 | } |
269 | |
76f7c306 |
270 | SV *_get_name(SV *self) |
271 | { |
272 | dSP; |
273 | SV *ret; |
274 | |
275 | PUSHMARK(SP); |
276 | XPUSHs(self); |
277 | PUTBACK; |
278 | |
612dcf3b |
279 | call_method("name", G_SCALAR); |
76f7c306 |
280 | |
281 | SPAGAIN; |
282 | ret = POPs; |
283 | PUTBACK; |
284 | |
285 | return ret; |
286 | } |
287 | |
15c104e2 |
288 | SV *_get_symbol(SV *self, varspec_t *variable, int vivify) |
4871b1a0 |
289 | { |
290 | HV *namespace; |
291 | SV **entry; |
292 | GV *glob; |
293 | |
294 | namespace = _get_namespace(self); |
64b79211 |
295 | entry = hv_fetch(namespace, variable->name, variable->namelen, vivify); |
4871b1a0 |
296 | if (!entry) |
297 | return NULL; |
298 | |
299 | glob = (GV*)(*entry); |
300 | if (!isGV(glob)) { |
301 | SV *namesv; |
4871b1a0 |
302 | |
303 | namesv = newSVsv(_get_name(self)); |
304 | sv_catpvs(namesv, "::"); |
305 | sv_catpv(namesv, variable->name); |
306 | |
b55c97c2 |
307 | /* can't use gv_init here, because it screws up @ISA in a way that I |
308 | * can't reproduce, but that CMOP triggers */ |
309 | gv_fetchsv(namesv, GV_ADD, vartype_to_svtype(variable->type)); |
02b2a57f |
310 | SvREFCNT_dec(namesv); |
4871b1a0 |
311 | } |
312 | |
313 | if (vivify) { |
314 | switch (variable->type) { |
315 | case VAR_SCALAR: |
d551a208 |
316 | if (!GvSVOK(glob)) |
317 | GvSetSV(glob, newSV(0)); |
4871b1a0 |
318 | break; |
319 | case VAR_ARRAY: |
d551a208 |
320 | if (!GvAVOK(glob)) |
321 | GvSetAV(glob, newAV()); |
4871b1a0 |
322 | break; |
323 | case VAR_HASH: |
d551a208 |
324 | if (!GvHVOK(glob)) |
325 | GvSetHV(glob, newHV()); |
4871b1a0 |
326 | break; |
327 | case VAR_CODE: |
328 | croak("Don't know how to vivify CODE variables"); |
329 | case VAR_IO: |
d551a208 |
330 | if (!GvIOOK(glob)) |
331 | GvSetIO(glob, newIO()); |
4871b1a0 |
332 | break; |
333 | default: |
334 | croak("Unknown type in vivication"); |
335 | } |
336 | } |
337 | |
338 | switch (variable->type) { |
339 | case VAR_SCALAR: |
340 | return GvSV(glob); |
341 | case VAR_ARRAY: |
342 | return (SV*)GvAV(glob); |
343 | case VAR_HASH: |
344 | return (SV*)GvHV(glob); |
345 | case VAR_CODE: |
346 | return (SV*)GvCV(glob); |
347 | case VAR_IO: |
348 | return (SV*)GvIO(glob); |
349 | default: |
350 | return NULL; |
351 | } |
352 | } |
353 | |
59017825 |
354 | MODULE = Package::Stash PACKAGE = Package::Stash |
355 | |
be2a7e99 |
356 | PROTOTYPES: DISABLE |
357 | |
59017825 |
358 | SV* |
359 | new(class, package_name) |
360 | char *class |
361 | SV *package_name |
3496f1e8 |
362 | PREINIT: |
59017825 |
363 | HV *instance; |
364 | HV *namespace; |
1d6c978b |
365 | SV *nsref; |
59017825 |
366 | CODE: |
367 | if (!SvPOK(package_name)) |
368 | croak("The constructor argument must be the name of a package"); |
369 | |
6c3e69c6 |
370 | instance = newHV(); |
59017825 |
371 | |
1d6c978b |
372 | if (!hv_store(instance, "name", 4, SvREFCNT_inc_simple_NN(package_name), 0)) { |
373 | SvREFCNT_dec(package_name); |
c86a1630 |
374 | SvREFCNT_dec(instance); |
e8d57afd |
375 | croak("Couldn't initialize the 'name' key, hv_store failed"); |
1d6c978b |
376 | } |
59017825 |
377 | namespace = gv_stashpv(SvPV_nolen(package_name), GV_ADD); |
1d6c978b |
378 | nsref = newRV_inc((SV*)namespace); |
379 | if (!hv_store(instance, "namespace", 9, nsref, 0)) { |
380 | SvREFCNT_dec(nsref); |
c86a1630 |
381 | SvREFCNT_dec(instance); |
e8d57afd |
382 | croak("Couldn't initialize the 'namespace' key, hv_store failed"); |
1d6c978b |
383 | } |
59017825 |
384 | |
6c3e69c6 |
385 | RETVAL = sv_bless(newRV_noinc((SV*)instance), gv_stashpv(class, 0)); |
59017825 |
386 | OUTPUT: |
387 | RETVAL |
194acf47 |
388 | |
389 | SV* |
390 | name(self) |
391 | SV *self |
3496f1e8 |
392 | PREINIT: |
26f802f7 |
393 | HE *slot; |
194acf47 |
394 | CODE: |
395 | if (!sv_isobject(self)) |
396 | croak("Can't call name as a class method"); |
26f802f7 |
397 | slot = hv_fetch_ent((HV*)SvRV(self), name_key, 0, name_hash); |
398 | RETVAL = slot ? SvREFCNT_inc_simple_NN(HeVAL(slot)) : &PL_sv_undef; |
194acf47 |
399 | OUTPUT: |
400 | RETVAL |
401 | |
402 | SV* |
403 | namespace(self) |
404 | SV *self |
3496f1e8 |
405 | PREINIT: |
26f802f7 |
406 | HE *slot; |
194acf47 |
407 | CODE: |
408 | if (!sv_isobject(self)) |
409 | croak("Can't call namespace as a class method"); |
26f802f7 |
410 | slot = hv_fetch_ent((HV*)SvRV(self), namespace_key, 0, namespace_hash); |
411 | RETVAL = slot ? SvREFCNT_inc_simple_NN(HeVAL(slot)) : &PL_sv_undef; |
194acf47 |
412 | OUTPUT: |
413 | RETVAL |
3fd56b4d |
414 | |
415 | void |
15c104e2 |
416 | add_symbol(self, variable, initial=NULL, ...) |
76f7c306 |
417 | SV *self |
418 | varspec_t variable |
419 | SV *initial |
420 | PREINIT: |
421 | SV *name; |
422 | GV *glob; |
423 | CODE: |
424 | if (initial && !_valid_for_type(initial, variable.type)) |
425 | croak("%s is not of type %s", |
426 | SvPV_nolen(initial), vartype_to_string(variable.type)); |
427 | |
428 | name = newSVsv(_get_name(self)); |
429 | sv_catpvs(name, "::"); |
430 | sv_catpv(name, variable.name); |
431 | |
76f7c306 |
432 | if (items > 2 && (PL_perldb & 0x10) && variable.type == VAR_CODE) { |
433 | int i; |
d1d0e437 |
434 | char *filename = NULL, *namepv; |
435 | I32 first_line_num = -1, last_line_num = -1; |
436 | STRLEN namelen; |
437 | SV *dbval; |
438 | HV *dbsub; |
76f7c306 |
439 | |
440 | if ((items - 3) % 2) |
15c104e2 |
441 | croak("add_symbol: Odd number of elements in %%opts"); |
76f7c306 |
442 | |
443 | for (i = 3; i < items; i += 2) { |
444 | char *key; |
445 | key = SvPV_nolen(ST(i)); |
446 | if (strEQ(key, "filename")) { |
447 | if (!SvPOK(ST(i + 1))) |
15c104e2 |
448 | croak("add_symbol: filename must be a string"); |
76f7c306 |
449 | filename = SvPV_nolen(ST(i + 1)); |
450 | } |
451 | else if (strEQ(key, "first_line_num")) { |
452 | if (!SvIOK(ST(i + 1))) |
15c104e2 |
453 | croak("add_symbol: first_line_num must be an integer"); |
76f7c306 |
454 | first_line_num = SvIV(ST(i + 1)); |
455 | } |
456 | else if (strEQ(key, "last_line_num")) { |
457 | if (!SvIOK(ST(i + 1))) |
15c104e2 |
458 | croak("add_symbol: last_line_num must be an integer"); |
76f7c306 |
459 | last_line_num = SvIV(ST(i + 1)); |
460 | } |
461 | } |
462 | |
d1d0e437 |
463 | if (!filename || first_line_num == -1) { |
464 | I32 cxix_from, cxix_to; |
465 | PERL_CONTEXT *cx, *ccstack; |
466 | COP *cop = NULL; |
467 | |
468 | cx = upcontext(0, &cop, &ccstack, &cxix_from, &cxix_to); |
469 | if (!cop) |
470 | cop = PL_curcop; |
471 | |
472 | if (!filename) |
473 | filename = CopFILE(cop); |
474 | if (first_line_num == -1) |
475 | first_line_num = cop->cop_line; |
476 | } |
477 | |
478 | if (last_line_num == -1) |
479 | last_line_num = first_line_num; |
480 | |
481 | /* http://perldoc.perl.org/perldebguts.html#Debugger-Internals */ |
482 | dbsub = get_hv("DB::sub", 1); |
483 | dbval = newSVpvf("%s:%d-%d", filename, first_line_num, last_line_num); |
484 | namepv = SvPV(name, namelen); |
485 | if (!hv_store(dbsub, namepv, namelen, dbval, 0)) { |
486 | warn("Failed to update $DB::sub for subroutine %s", namepv); |
487 | SvREFCNT_dec(dbval); |
76f7c306 |
488 | } |
489 | } |
76f7c306 |
490 | |
9aa6fe4f |
491 | /* GV_ADDMULTI rather than GV_ADD because otherwise you get 'used only |
492 | * once' warnings in some situations... i can't reproduce this, but CMOP |
493 | * triggers it */ |
fedea7f9 |
494 | glob = gv_fetchsv(name, GV_ADDMULTI, vartype_to_svtype(variable.type)); |
76f7c306 |
495 | |
496 | if (initial) { |
497 | SV *val; |
498 | |
499 | if (SvROK(initial)) { |
500 | val = SvRV(initial); |
a2fec41a |
501 | SvREFCNT_inc_simple_void_NN(val); |
76f7c306 |
502 | } |
503 | else { |
504 | val = newSVsv(initial); |
505 | } |
506 | |
507 | switch (variable.type) { |
508 | case VAR_SCALAR: |
d551a208 |
509 | GvSetSV(glob, val); |
76f7c306 |
510 | break; |
511 | case VAR_ARRAY: |
d551a208 |
512 | GvSetAV(glob, val); |
76f7c306 |
513 | break; |
514 | case VAR_HASH: |
d551a208 |
515 | GvSetHV(glob, val); |
76f7c306 |
516 | break; |
517 | case VAR_CODE: |
d551a208 |
518 | GvSetCV(glob, val); |
76f7c306 |
519 | break; |
520 | case VAR_IO: |
d551a208 |
521 | GvSetIO(glob, val); |
76f7c306 |
522 | break; |
523 | } |
524 | } |
525 | |
5bb2b07b |
526 | SvREFCNT_dec(name); |
527 | |
76f7c306 |
528 | void |
64b79211 |
529 | remove_glob(self, namesv) |
3fd56b4d |
530 | SV *self |
64b79211 |
531 | SV *namesv |
532 | PREINIT: |
533 | char *name; |
534 | STRLEN len; |
3fd56b4d |
535 | CODE: |
64b79211 |
536 | name = SvPV(namesv, len); |
537 | hv_delete(_get_namespace(self), name, len, G_DISCARD); |
9b608466 |
538 | |
34805376 |
539 | int |
15c104e2 |
540 | has_symbol(self, variable) |
34805376 |
541 | SV *self |
542 | varspec_t variable |
543 | PREINIT: |
544 | HV *namespace; |
545 | SV **entry; |
546 | CODE: |
547 | namespace = _get_namespace(self); |
64b79211 |
548 | entry = hv_fetch(namespace, variable.name, variable.namelen, 0); |
34805376 |
549 | if (!entry) |
550 | XSRETURN_UNDEF; |
551 | |
552 | if (isGV(*entry)) { |
553 | GV *glob = (GV*)(*entry); |
554 | switch (variable.type) { |
555 | case VAR_SCALAR: |
d551a208 |
556 | RETVAL = GvSVOK(glob) ? 1 : 0; |
34805376 |
557 | break; |
558 | case VAR_ARRAY: |
d551a208 |
559 | RETVAL = GvAVOK(glob) ? 1 : 0; |
34805376 |
560 | break; |
561 | case VAR_HASH: |
d551a208 |
562 | RETVAL = GvHVOK(glob) ? 1 : 0; |
34805376 |
563 | break; |
564 | case VAR_CODE: |
d551a208 |
565 | RETVAL = GvCVOK(glob) ? 1 : 0; |
34805376 |
566 | break; |
567 | case VAR_IO: |
d551a208 |
568 | RETVAL = GvIOOK(glob) ? 1 : 0; |
34805376 |
569 | break; |
570 | } |
571 | } |
572 | else { |
573 | RETVAL = (variable.type == VAR_CODE); |
574 | } |
575 | OUTPUT: |
576 | RETVAL |
577 | |
e3ad44fd |
578 | SV* |
15c104e2 |
579 | get_symbol(self, variable) |
e3ad44fd |
580 | SV *self |
581 | varspec_t variable |
582 | PREINIT: |
fca4ed0c |
583 | SV *val; |
e3ad44fd |
584 | CODE: |
15c104e2 |
585 | val = _get_symbol(self, &variable, 0); |
4871b1a0 |
586 | if (!val) |
e3ad44fd |
587 | XSRETURN_UNDEF; |
93c36417 |
588 | RETVAL = newRV_inc(val); |
4871b1a0 |
589 | OUTPUT: |
590 | RETVAL |
e3ad44fd |
591 | |
4871b1a0 |
592 | SV* |
15c104e2 |
593 | get_or_add_symbol(self, variable) |
4871b1a0 |
594 | SV *self |
595 | varspec_t variable |
596 | PREINIT: |
597 | SV *val; |
598 | CODE: |
15c104e2 |
599 | val = _get_symbol(self, &variable, 1); |
fca4ed0c |
600 | if (!val) |
601 | XSRETURN_UNDEF; |
93c36417 |
602 | RETVAL = newRV_inc(val); |
e3ad44fd |
603 | OUTPUT: |
604 | RETVAL |
605 | |
9b608466 |
606 | void |
15c104e2 |
607 | remove_symbol(self, variable) |
215f49f8 |
608 | SV *self |
609 | varspec_t variable |
610 | PREINIT: |
611 | HV *namespace; |
612 | SV **entry; |
613 | CODE: |
614 | namespace = _get_namespace(self); |
64b79211 |
615 | entry = hv_fetch(namespace, variable.name, variable.namelen, 0); |
215f49f8 |
616 | if (!entry) |
617 | XSRETURN_EMPTY; |
618 | |
619 | if (isGV(*entry)) { |
620 | GV *glob = (GV*)(*entry); |
621 | switch (variable.type) { |
622 | case VAR_SCALAR: |
d551a208 |
623 | GvSetSV(glob, NULL); |
215f49f8 |
624 | break; |
625 | case VAR_ARRAY: |
d551a208 |
626 | GvSetAV(glob, NULL); |
215f49f8 |
627 | break; |
628 | case VAR_HASH: |
d551a208 |
629 | GvSetHV(glob, NULL); |
215f49f8 |
630 | break; |
631 | case VAR_CODE: |
d551a208 |
632 | GvSetCV(glob, NULL); |
215f49f8 |
633 | break; |
634 | case VAR_IO: |
d551a208 |
635 | GvSetIO(glob, NULL); |
215f49f8 |
636 | break; |
637 | } |
638 | } |
639 | else { |
640 | if (variable.type == VAR_CODE) { |
64b79211 |
641 | hv_delete(namespace, variable.name, variable.namelen, G_DISCARD); |
215f49f8 |
642 | } |
643 | } |
644 | |
645 | void |
15c104e2 |
646 | list_all_symbols(self, vartype=VAR_NONE) |
9b608466 |
647 | SV *self |
648 | vartype_t vartype |
649 | PPCODE: |
650 | if (vartype == VAR_NONE) { |
651 | HV *namespace; |
652 | HE *entry; |
653 | int keys; |
654 | |
655 | namespace = _get_namespace(self); |
656 | keys = hv_iterinit(namespace); |
657 | EXTEND(SP, keys); |
ebcc8ba8 |
658 | while ((entry = hv_iternext(namespace))) { |
13f8a7b7 |
659 | mPUSHs(newSVhe(entry)); |
9b608466 |
660 | } |
661 | } |
662 | else { |
663 | HV *namespace; |
9b608466 |
664 | SV *val; |
665 | char *key; |
64b79211 |
666 | I32 len; |
9b608466 |
667 | |
668 | namespace = _get_namespace(self); |
669 | hv_iterinit(namespace); |
ebcc8ba8 |
670 | while ((val = hv_iternextsv(namespace, &key, &len))) { |
9b608466 |
671 | GV *gv = (GV*)val; |
672 | if (isGV(gv)) { |
673 | switch (vartype) { |
674 | case VAR_SCALAR: |
d551a208 |
675 | if (GvSVOK(val)) |
9b608466 |
676 | mXPUSHp(key, len); |
677 | break; |
678 | case VAR_ARRAY: |
d551a208 |
679 | if (GvAVOK(val)) |
9b608466 |
680 | mXPUSHp(key, len); |
681 | break; |
682 | case VAR_HASH: |
d551a208 |
683 | if (GvHVOK(val)) |
9b608466 |
684 | mXPUSHp(key, len); |
685 | break; |
686 | case VAR_CODE: |
d551a208 |
687 | if (GvCVOK(val)) |
9b608466 |
688 | mXPUSHp(key, len); |
689 | break; |
690 | case VAR_IO: |
d551a208 |
691 | if (GvIOOK(val)) |
9b608466 |
692 | mXPUSHp(key, len); |
693 | break; |
694 | } |
695 | } |
696 | else if (vartype == VAR_CODE) { |
697 | mXPUSHp(key, len); |
698 | } |
699 | } |
700 | } |
26f802f7 |
701 | |
702 | BOOT: |
703 | { |
704 | name_key = newSVpvs("name"); |
705 | PERL_HASH(name_hash, "name", 4); |
706 | |
707 | namespace_key = newSVpvs("namespace"); |
708 | PERL_HASH(namespace_hash, "namespace", 9); |
709 | |
710 | type_key = newSVpvs("type"); |
711 | PERL_HASH(type_hash, "type", 4); |
712 | } |