Commit | Line | Data |
646c0371 |
1 | #include "mouse.h" |
2 | |
3 | #define CHECK_INSTANCE(instance) STMT_START{ \ |
4 | if(!(SvROK(instance) && SvTYPE(SvRV(instance)) == SVt_PVHV)){ \ |
76770976 |
5 | croak("Invalid object instance"); \ |
646c0371 |
6 | } \ |
7 | } STMT_END |
8 | |
9 | /* Moose XS Attribute object */ |
10 | enum mouse_xa_ix_t{ |
11 | MOUSE_XA_ATTRIBUTE, |
12 | MOUSE_XA_TC, |
13 | MOUSE_XA_TC_CODE, |
14 | |
15 | MOUSE_XA_last |
16 | }; |
17 | |
18 | #define MOUSE_xa_attribute(m) MOUSE_av_at(m, MOUSE_XA_ATTRIBUTE) |
19 | #define MOUSE_xa_tc(m) MOUSE_av_at(m, MOUSE_XA_TC) |
20 | #define MOUSE_xa_tc_code(m) MOUSE_av_at(m, MOUSE_XA_TC_CODE) |
21 | |
22 | #define MOUSE_mg_attribute(mg) MOUSE_xa_attribute(MOUSE_mg_xa(mg)) |
23 | |
24 | enum mouse_xa_flags_t{ |
25 | MOUSEf_ATTR_HAS_TC = 0x0001, |
26 | MOUSEf_ATTR_HAS_DEFAULT = 0x0002, |
27 | MOUSEf_ATTR_HAS_BUILDER = 0x0004, |
28 | MOUSEf_ATTR_HAS_INITIALIZER = 0x0008, /* not used in Mouse */ |
29 | MOUSEf_ATTR_HAS_TRIGGER = 0x0010, |
30 | |
31 | MOUSEf_ATTR_IS_LAZY = 0x0020, |
32 | MOUSEf_ATTR_IS_WEAK_REF = 0x0040, |
33 | MOUSEf_ATTR_IS_REQUIRED = 0x0080, |
34 | |
35 | MOUSEf_ATTR_SHOULD_COERCE = 0x0100, |
36 | |
37 | MOUSEf_ATTR_SHOULD_AUTO_DEREF |
38 | = 0x0200, |
39 | MOUSEf_TC_IS_ARRAYREF = 0x0400, |
40 | MOUSEf_TC_IS_HASHREF = 0x0800, |
41 | |
42 | MOUSEf_OTHER1 = 0x1000, |
43 | MOUSEf_OTHER2 = 0x2000, |
44 | MOUSEf_OTHER3 = 0x4000, |
45 | MOUSEf_OTHER4 = 0x8000, |
46 | |
47 | MOUSEf_MOUSE_MASK = 0xFFFF /* not used */ |
48 | }; |
49 | |
50 | static MGVTBL mouse_accessor_vtbl; /* MAGIC identity */ |
51 | |
52 | |
53 | SV* |
54 | mouse_accessor_get_self(pTHX_ I32 const ax, I32 const items, CV* const cv) { |
646c0371 |
55 | if(items < 1){ |
56 | croak("Too few arguments for %s", GvNAME(CvGV(cv))); |
57 | } |
58 | |
59 | /* NOTE: If self has GETMAGIC, $self->accessor will invoke GETMAGIC |
60 | * before calling methods, so SvGETMAGIC(self) is not necessarily needed here. |
61 | */ |
62 | |
76770976 |
63 | return ST(0); |
646c0371 |
64 | } |
65 | |
66 | |
67 | CV* |
68 | mouse_instantiate_xs_accessor(pTHX_ SV* const attr, XSUBADDR_t const accessor_impl){ |
69 | SV* const slot = mcall0(attr, mouse_name); |
70 | AV* const xa = newAV(); |
71 | CV* xsub; |
72 | MAGIC* mg; |
73 | U16 flags = 0; |
74 | |
75 | sv_2mortal((SV*)xa); |
76 | |
77 | xsub = newXS(NULL, accessor_impl, __FILE__); |
78 | sv_2mortal((SV*)xsub); |
79 | |
80 | mg = sv_magicext((SV*)xsub, slot, PERL_MAGIC_ext, &mouse_accessor_vtbl, (char*)xa, HEf_SVKEY); |
81 | |
82 | /* NOTE: |
83 | * although we use MAGIC for gc, we also store mg to CvXSUBANY for efficiency (gfx) |
84 | */ |
85 | CvXSUBANY(xsub).any_ptr = (void*)mg; |
86 | |
87 | av_extend(xa, MOUSE_XA_last - 1); |
88 | |
89 | av_store(xa, MOUSE_XA_ATTRIBUTE, newSVsv(attr)); |
90 | |
91 | /* prepare attribute status */ |
92 | /* XXX: making it lazy is a good way? */ |
93 | |
94 | if(SvTRUEx(mcall0s(attr, "has_type_constraint"))){ |
95 | SV* tc; |
96 | flags |= MOUSEf_ATTR_HAS_TC; |
97 | |
98 | ENTER; |
99 | SAVETMPS; |
100 | |
101 | tc = mcall0s(attr, "type_constraint"); |
102 | av_store(xa, MOUSE_XA_TC, newSVsv(tc)); |
103 | |
104 | if(SvTRUEx(mcall0s(attr, "should_auto_deref"))){ |
105 | flags |= MOUSEf_ATTR_SHOULD_AUTO_DEREF; |
106 | if( SvTRUEx(mcall1s(tc, "is_a_type_of", newSVpvs_flags("ArrayRef", SVs_TEMP))) ){ |
107 | flags |= MOUSEf_TC_IS_ARRAYREF; |
108 | } |
109 | else if( SvTRUEx(mcall1s(tc, "is_a_type_of", newSVpvs_flags("HashRef", SVs_TEMP))) ){ |
110 | flags |= MOUSEf_TC_IS_HASHREF; |
111 | } |
112 | else{ |
113 | mouse_throw_error(attr, tc, |
114 | "Can not auto de-reference the type constraint '%"SVf"'", |
115 | mcall0(tc, mouse_name)); |
116 | } |
117 | } |
118 | |
119 | if(SvTRUEx(mcall0s(attr, "should_coerce"))){ |
120 | flags |= MOUSEf_ATTR_SHOULD_COERCE; |
121 | } |
122 | |
123 | FREETMPS; |
124 | LEAVE; |
125 | } |
126 | |
127 | if(SvTRUEx(mcall0s(attr, "has_trigger"))){ |
128 | flags |= MOUSEf_ATTR_HAS_TRIGGER; |
129 | } |
130 | |
131 | if(SvTRUEx(mcall0s(attr, "is_lazy"))){ |
132 | flags |= MOUSEf_ATTR_IS_LAZY; |
133 | |
134 | if(SvTRUEx(mcall0s(attr, "has_builder"))){ |
135 | flags |= MOUSEf_ATTR_HAS_BUILDER; |
136 | } |
137 | else if(SvTRUEx(mcall0s(attr, "has_default"))){ |
138 | flags |= MOUSEf_ATTR_HAS_DEFAULT; |
139 | } |
140 | } |
141 | |
142 | if(SvTRUEx(mcall0s(attr, "is_weak_ref"))){ |
143 | flags |= MOUSEf_ATTR_IS_WEAK_REF; |
144 | } |
145 | |
146 | if(SvTRUEx(mcall0s(attr, "is_required"))){ |
147 | flags |= MOUSEf_ATTR_IS_REQUIRED; |
148 | } |
149 | |
150 | MOUSE_mg_flags(mg) = flags; |
151 | |
152 | return xsub; |
153 | } |
154 | |
155 | static SV* |
156 | mouse_apply_type_constraint(pTHX_ AV* const xa, SV* value, U16 const flags){ |
157 | SV* const tc = MOUSE_xa_tc(xa); |
158 | SV* tc_code; |
159 | |
160 | if(flags & MOUSEf_ATTR_SHOULD_COERCE){ |
161 | value = mcall1s(tc, "coerce", value); |
162 | } |
163 | |
164 | if(!SvOK(MOUSE_xa_tc_code(xa))){ |
646c0371 |
165 | tc_code = mcall0s(tc, "_compiled_type_constraint"); |
d33d8840 |
166 | av_store(xa, MOUSE_XA_TC_CODE, newSVsv(tc_code)); |
263728b5 |
167 | |
d33d8840 |
168 | if(!(SvROK(tc_code) && SvTYPE(SvRV(tc_code)) == SVt_PVCV)){ |
169 | mouse_throw_error(MOUSE_xa_attribute(xa), tc, "Not a CODE reference"); |
646c0371 |
170 | } |
171 | } |
172 | else{ |
173 | tc_code = MOUSE_xa_tc_code(xa); |
174 | } |
175 | |
176 | if(!mouse_tc_check(aTHX_ tc_code, value)){ |
177 | mouse_throw_error(MOUSE_xa_attribute(xa), value, |
178 | "Attribute (%"SVf") does not pass the type constraint because: %"SVf, |
179 | mcall0(MOUSE_xa_attribute(xa), mouse_name), |
180 | mcall1s(tc, "get_message", value)); |
181 | } |
182 | |
183 | return value; |
184 | } |
185 | |
208ffaeb |
186 | #define PUSH_VALUE(value, flags) STMT_START { \ |
187 | if((flags) & MOUSEf_ATTR_SHOULD_AUTO_DEREF && GIMME_V == G_ARRAY){ \ |
188 | mouse_push_values(aTHX_ value, (flags)); \ |
189 | } \ |
190 | else{ \ |
191 | dSP; \ |
192 | XPUSHs(value ? value : &PL_sv_undef); \ |
193 | PUTBACK; \ |
194 | } \ |
195 | } STMT_END \ |
646c0371 |
196 | |
197 | /* pushes return values, does auto-deref if needed */ |
198 | static void |
199 | mouse_push_values(pTHX_ SV* const value, U16 const flags){ |
200 | dSP; |
201 | |
208ffaeb |
202 | assert( flags & MOUSEf_ATTR_SHOULD_AUTO_DEREF && GIMME_V == G_ARRAY ); |
646c0371 |
203 | |
208ffaeb |
204 | if(!(value && SvOK(value))){ |
205 | return; |
206 | } |
646c0371 |
207 | |
208ffaeb |
208 | if(flags & MOUSEf_TC_IS_ARRAYREF){ |
209 | AV* const av = (AV*)SvRV(value); |
210 | I32 len; |
211 | I32 i; |
646c0371 |
212 | |
208ffaeb |
213 | if(SvTYPE(av) != SVt_PVAV){ |
214 | croak("Mouse-panic: Not an ARRAY reference"); |
646c0371 |
215 | } |
646c0371 |
216 | |
208ffaeb |
217 | len = av_len(av) + 1; |
218 | EXTEND(SP, len); |
219 | for(i = 0; i < len; i++){ |
220 | SV** const svp = av_fetch(av, i, FALSE); |
221 | PUSHs(svp ? *svp : &PL_sv_undef); |
646c0371 |
222 | } |
223 | } |
208ffaeb |
224 | else if(flags & MOUSEf_TC_IS_HASHREF){ |
225 | HV* const hv = (HV*)SvRV(value); |
226 | HE* he; |
227 | |
228 | if(SvTYPE(hv) != SVt_PVHV){ |
229 | croak("Mouse-panic: Not a HASH reference"); |
230 | } |
231 | |
232 | hv_iterinit(hv); |
233 | while((he = hv_iternext(hv))){ |
234 | EXTEND(SP, 2); |
235 | PUSHs(hv_iterkeysv(he)); |
236 | PUSHs(hv_iterval(hv, he)); |
237 | } |
646c0371 |
238 | } |
239 | |
240 | PUTBACK; |
241 | } |
242 | |
243 | static void |
244 | mouse_attr_get(pTHX_ SV* const self, MAGIC* const mg){ |
245 | U16 const flags = MOUSE_mg_flags(mg); |
246 | SV* const slot = MOUSE_mg_slot(mg); |
247 | SV* value; |
248 | |
6fe2272b |
249 | value = get_slot(self, slot); |
646c0371 |
250 | |
251 | /* check_lazy */ |
252 | if( !value && flags & MOUSEf_ATTR_IS_LAZY ){ |
253 | AV* const xa = MOUSE_mg_xa(mg); |
254 | SV* const attr = MOUSE_xa_attribute(xa); |
255 | |
256 | /* get default value by $attr->default or $attr->builder */ |
257 | if(flags & MOUSEf_ATTR_HAS_DEFAULT){ |
258 | value = mcall0s(attr, "default"); |
259 | |
260 | if(SvROK(value) && SvTYPE(SvRV(value)) == SVt_PVCV){ |
261 | value = mcall0(self, value); |
262 | } |
263 | } |
264 | else if(flags & MOUSEf_ATTR_HAS_BUILDER){ |
265 | SV* const builder = mcall0s(attr, "builder"); |
266 | value = mcall0(self, builder); |
267 | } |
268 | |
269 | if(!value){ |
270 | value = sv_newmortal(); |
271 | } |
272 | |
273 | /* apply coerce and type constraint */ |
274 | if(flags & MOUSEf_ATTR_HAS_TC){ |
275 | value = mouse_apply_type_constraint(aTHX_ xa, value, flags); |
276 | } |
277 | |
278 | /* store value to slot */ |
6fe2272b |
279 | value = set_slot(self, slot, value); |
646c0371 |
280 | } |
281 | |
208ffaeb |
282 | PUSH_VALUE(value, flags); |
646c0371 |
283 | } |
284 | |
285 | static void |
286 | mouse_attr_set(pTHX_ SV* const self, MAGIC* const mg, SV* value){ |
287 | U16 const flags = MOUSE_mg_flags(mg); |
288 | SV* const slot = MOUSE_mg_slot(mg); |
289 | |
290 | if(flags & MOUSEf_ATTR_HAS_TC){ |
291 | value = mouse_apply_type_constraint(aTHX_ MOUSE_mg_xa(mg), value, flags); |
292 | } |
293 | |
6fe2272b |
294 | set_slot(self, slot, value); |
646c0371 |
295 | |
296 | if(flags & MOUSEf_ATTR_IS_WEAK_REF){ |
6fe2272b |
297 | weaken_slot(self, slot); |
646c0371 |
298 | } |
299 | |
300 | if(flags & MOUSEf_ATTR_HAS_TRIGGER){ |
301 | SV* const trigger = mcall0s(MOUSE_mg_attribute(mg), "trigger"); |
302 | dSP; |
303 | |
304 | PUSHMARK(SP); |
305 | EXTEND(SP, 2); |
306 | PUSHs(self); |
307 | PUSHs(value); |
308 | |
309 | PUTBACK; |
310 | call_sv(trigger, G_VOID | G_DISCARD); |
311 | /* need not SPAGAIN */ |
312 | } |
313 | |
208ffaeb |
314 | PUSH_VALUE(value, flags); |
646c0371 |
315 | } |
316 | |
317 | XS(mouse_xs_accessor) |
318 | { |
319 | dVAR; dXSARGS; |
320 | dMOUSE_self; |
321 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
322 | |
323 | SP -= items; /* PPCODE */ |
324 | PUTBACK; |
325 | |
326 | if(items == 1){ /* reader */ |
327 | mouse_attr_get(aTHX_ self, mg); |
328 | } |
329 | else if (items == 2){ /* writer */ |
330 | mouse_attr_set(aTHX_ self, mg, ST(1)); |
331 | } |
332 | else{ |
333 | mouse_throw_error(MOUSE_mg_attribute(mg), NULL, |
334 | "Expected exactly one or two argument for an accessor"); |
335 | } |
336 | } |
337 | |
338 | |
339 | XS(mouse_xs_reader) |
340 | { |
341 | dVAR; dXSARGS; |
342 | dMOUSE_self; |
343 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
344 | |
345 | if (items != 1) { |
346 | mouse_throw_error(MOUSE_mg_attribute(mg), NULL, |
347 | "Cannot assign a value to a read-only accessor"); |
348 | } |
349 | |
350 | SP -= items; /* PPCODE */ |
351 | PUTBACK; |
352 | |
353 | mouse_attr_get(aTHX_ self, mg); |
354 | } |
355 | |
356 | XS(mouse_xs_writer) |
357 | { |
358 | dVAR; dXSARGS; |
359 | dMOUSE_self; |
360 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
361 | |
362 | if (items != 2) { |
363 | mouse_throw_error(MOUSE_mg_attribute(mg), NULL, |
364 | "Too few arguments for a write-only accessor"); |
365 | } |
366 | |
367 | SP -= items; /* PPCODE */ |
368 | PUTBACK; |
369 | |
370 | mouse_attr_set(aTHX_ self, mg, ST(1)); |
371 | } |
372 | |
373 | /* simple accessors */ |
374 | |
375 | /* |
376 | static MAGIC* |
377 | mouse_accessor_get_mg(pTHX_ CV* const xsub){ |
378 | return moose_mg_find(aTHX_ (SV*)xsub, &mouse_simple_accessor_vtbl, MOOSEf_DIE_ON_FAIL); |
379 | } |
380 | */ |
381 | |
382 | CV* |
383 | mouse_install_simple_accessor(pTHX_ const char* const fq_name, const char* const key, I32 const keylen, XSUBADDR_t const accessor_impl){ |
384 | CV* const xsub = newXS((char*)fq_name, accessor_impl, __FILE__); |
385 | SV* const slot = newSVpvn_share(key, keylen, 0U); |
386 | MAGIC* mg; |
387 | |
388 | if(!fq_name){ |
389 | /* anonymous xsubs need sv_2mortal */ |
390 | sv_2mortal((SV*)xsub); |
391 | } |
392 | |
393 | mg = sv_magicext((SV*)xsub, slot, PERL_MAGIC_ext, &mouse_accessor_vtbl, NULL, 0); |
394 | SvREFCNT_dec(slot); /* sv_magicext() increases refcnt in mg_obj */ |
395 | |
396 | /* NOTE: |
397 | * although we use MAGIC for gc, we also store mg to CvXSUBANY for efficiency (gfx) |
398 | */ |
399 | CvXSUBANY(xsub).any_ptr = (void*)mg; |
400 | |
401 | return xsub; |
402 | } |
403 | |
404 | XS(mouse_xs_simple_reader) |
405 | { |
406 | dVAR; dXSARGS; |
407 | dMOUSE_self; |
408 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
409 | SV* value; |
410 | |
411 | if (items != 1) { |
412 | croak("Expected exactly one argument for a reader for '%"SVf"'", slot); |
413 | } |
414 | |
6fe2272b |
415 | value = get_slot(self, slot); |
646c0371 |
416 | ST(0) = value ? value : &PL_sv_undef; |
417 | XSRETURN(1); |
418 | } |
419 | |
420 | |
421 | XS(mouse_xs_simple_writer) |
422 | { |
423 | dVAR; dXSARGS; |
424 | dMOUSE_self; |
425 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
426 | |
427 | if (items != 2) { |
428 | croak("Expected exactly two argument for a writer for '%"SVf"'", slot); |
429 | } |
430 | |
6fe2272b |
431 | ST(0) = set_slot(self, slot, ST(1)); |
646c0371 |
432 | XSRETURN(1); |
433 | } |
434 | |
435 | XS(mouse_xs_simple_clearer) |
436 | { |
437 | dVAR; dXSARGS; |
438 | dMOUSE_self; |
439 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
440 | SV* value; |
441 | |
442 | if (items != 1) { |
443 | croak("Expected exactly one argument for a clearer for '%"SVf"'", slot); |
444 | } |
445 | |
6fe2272b |
446 | value = delete_slot(self, slot); |
646c0371 |
447 | ST(0) = value ? value : &PL_sv_undef; |
448 | XSRETURN(1); |
449 | } |
450 | |
451 | XS(mouse_xs_simple_predicate) |
452 | { |
453 | dVAR; dXSARGS; |
454 | dMOUSE_self; |
455 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
456 | |
457 | if (items != 1) { |
458 | croak("Expected exactly one argument for a predicate for '%"SVf"'", slot); |
459 | } |
460 | |
6fe2272b |
461 | ST(0) = boolSV( has_slot(self, slot) ); |
646c0371 |
462 | XSRETURN(1); |
463 | } |
464 | |
76770976 |
465 | /* simple instance slot accessor (or Mouse::Meta::Instance) */ |
646c0371 |
466 | |
467 | SV* |
468 | mouse_instance_create(pTHX_ HV* const stash) { |
469 | assert(stash); |
470 | return sv_bless( newRV_noinc((SV*)newHV()), stash ); |
471 | } |
472 | |
473 | SV* |
474 | mouse_instance_clone(pTHX_ SV* const instance) { |
475 | HV* proto; |
476 | assert(instance); |
477 | |
478 | CHECK_INSTANCE(instance); |
479 | proto = newHVhv((HV*)SvRV(instance)); |
480 | return sv_bless( newRV_noinc((SV*)proto), SvSTASH(SvRV(instance)) ); |
481 | } |
482 | |
483 | bool |
484 | mouse_instance_has_slot(pTHX_ SV* const instance, SV* const slot) { |
485 | assert(instance); |
486 | assert(slot); |
487 | CHECK_INSTANCE(instance); |
488 | return hv_exists_ent((HV*)SvRV(instance), slot, 0U); |
489 | } |
490 | |
491 | SV* |
492 | mouse_instance_get_slot(pTHX_ SV* const instance, SV* const slot) { |
493 | HE* he; |
494 | assert(instance); |
495 | assert(slot); |
496 | CHECK_INSTANCE(instance); |
497 | he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U); |
498 | return he ? HeVAL(he) : NULL; |
499 | } |
500 | |
501 | SV* |
502 | mouse_instance_set_slot(pTHX_ SV* const instance, SV* const slot, SV* const value) { |
503 | HE* he; |
504 | SV* sv; |
505 | assert(instance); |
506 | assert(slot); |
507 | assert(value); |
508 | CHECK_INSTANCE(instance); |
509 | he = hv_fetch_ent((HV*)SvRV(instance), slot, TRUE, 0U); |
510 | sv = HeVAL(he); |
511 | sv_setsv_mg(sv, value); |
512 | return sv; |
513 | } |
514 | |
515 | SV* |
516 | mouse_instance_delete_slot(pTHX_ SV* const instance, SV* const slot) { |
517 | assert(instance); |
518 | assert(slot); |
519 | CHECK_INSTANCE(instance); |
520 | return hv_delete_ent((HV*)SvRV(instance), slot, 0, 0U); |
521 | } |
522 | |
523 | void |
524 | mouse_instance_weaken_slot(pTHX_ SV* const instance, SV* const slot) { |
525 | HE* he; |
526 | assert(instance); |
527 | assert(slot); |
528 | CHECK_INSTANCE(instance); |
529 | he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U); |
530 | if(he){ |
531 | sv_rvweaken(HeVAL(he)); |
532 | } |
533 | } |
534 | \r |
535 | MODULE = Mouse::Meta::Method::Accessor::XS PACKAGE = Mouse::Meta::Method::Accessor::XS |
536 | |
537 | PROTOTYPES: DISABLE |
538 | VERSIONCHECK: DISABLE |
539 | |
540 | CV* |
541 | _generate_accessor(klass, SV* attr, metaclass) |
542 | CODE: |
543 | { |
544 | RETVAL = mouse_instantiate_xs_accessor(aTHX_ attr, mouse_xs_accessor); |
545 | } |
546 | OUTPUT: |
547 | RETVAL |
548 | |
549 | CV* |
550 | _generate_reader(klass, SV* attr, metaclass) |
551 | CODE: |
552 | { |
553 | RETVAL = mouse_instantiate_xs_accessor(aTHX_ attr, mouse_xs_reader); |
554 | } |
555 | OUTPUT: |
556 | RETVAL |
557 | |
558 | CV* |
559 | _generate_writer(klass, SV* attr, metaclass) |
560 | CODE: |
561 | { |
562 | RETVAL = mouse_instantiate_xs_accessor(aTHX_ attr, mouse_xs_writer); |
563 | } |
564 | OUTPUT: |
565 | RETVAL |
566 | |
567 | CV* |
568 | _generate_clearer(klass, SV* attr, metaclass) |
569 | CODE: |
570 | { |
571 | SV* const slot = mcall0s(attr, "name"); |
572 | STRLEN len; |
573 | const char* const pv = SvPV_const(slot, len); |
574 | RETVAL = mouse_install_simple_accessor(aTHX_ NULL, pv, len, mouse_xs_simple_clearer); |
575 | } |
576 | OUTPUT: |
577 | RETVAL |
578 | |
579 | CV* |
580 | _generate_predicate(klass, SV* attr, metaclass) |
581 | CODE: |
582 | { |
583 | SV* const slot = mcall0s(attr, "name"); |
584 | STRLEN len; |
585 | const char* const pv = SvPV_const(slot, len); |
586 | RETVAL = mouse_install_simple_accessor(aTHX_ NULL, pv, len, mouse_xs_simple_predicate); |
587 | } |
588 | OUTPUT: |
589 | RETVAL |
590 | |