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)); |
167 | if(!(SvROK(tc_code) && SvTYPE(SvRV(tc_code)) == SVt_PVCV)){ |
168 | mouse_throw_error(MOUSE_xa_attribute(xa), tc, "Not a CODE reference"); |
646c0371 |
169 | } |
170 | } |
171 | else{ |
172 | tc_code = MOUSE_xa_tc_code(xa); |
173 | } |
174 | |
175 | if(!mouse_tc_check(aTHX_ tc_code, value)){ |
176 | mouse_throw_error(MOUSE_xa_attribute(xa), value, |
177 | "Attribute (%"SVf") does not pass the type constraint because: %"SVf, |
178 | mcall0(MOUSE_xa_attribute(xa), mouse_name), |
179 | mcall1s(tc, "get_message", value)); |
180 | } |
181 | |
182 | return value; |
183 | } |
184 | |
208ffaeb |
185 | #define PUSH_VALUE(value, flags) STMT_START { \ |
186 | if((flags) & MOUSEf_ATTR_SHOULD_AUTO_DEREF && GIMME_V == G_ARRAY){ \ |
187 | mouse_push_values(aTHX_ value, (flags)); \ |
188 | } \ |
189 | else{ \ |
190 | dSP; \ |
191 | XPUSHs(value ? value : &PL_sv_undef); \ |
192 | PUTBACK; \ |
193 | } \ |
194 | } STMT_END \ |
646c0371 |
195 | |
196 | /* pushes return values, does auto-deref if needed */ |
197 | static void |
198 | mouse_push_values(pTHX_ SV* const value, U16 const flags){ |
199 | dSP; |
200 | |
208ffaeb |
201 | assert( flags & MOUSEf_ATTR_SHOULD_AUTO_DEREF && GIMME_V == G_ARRAY ); |
646c0371 |
202 | |
208ffaeb |
203 | if(!(value && SvOK(value))){ |
204 | return; |
205 | } |
646c0371 |
206 | |
208ffaeb |
207 | if(flags & MOUSEf_TC_IS_ARRAYREF){ |
208 | AV* const av = (AV*)SvRV(value); |
209 | I32 len; |
210 | I32 i; |
646c0371 |
211 | |
208ffaeb |
212 | if(SvTYPE(av) != SVt_PVAV){ |
213 | croak("Mouse-panic: Not an ARRAY reference"); |
646c0371 |
214 | } |
646c0371 |
215 | |
208ffaeb |
216 | len = av_len(av) + 1; |
217 | EXTEND(SP, len); |
218 | for(i = 0; i < len; i++){ |
219 | SV** const svp = av_fetch(av, i, FALSE); |
220 | PUSHs(svp ? *svp : &PL_sv_undef); |
646c0371 |
221 | } |
222 | } |
208ffaeb |
223 | else if(flags & MOUSEf_TC_IS_HASHREF){ |
224 | HV* const hv = (HV*)SvRV(value); |
225 | HE* he; |
226 | |
227 | if(SvTYPE(hv) != SVt_PVHV){ |
228 | croak("Mouse-panic: Not a HASH reference"); |
229 | } |
230 | |
231 | hv_iterinit(hv); |
232 | while((he = hv_iternext(hv))){ |
233 | EXTEND(SP, 2); |
234 | PUSHs(hv_iterkeysv(he)); |
235 | PUSHs(hv_iterval(hv, he)); |
236 | } |
646c0371 |
237 | } |
238 | |
239 | PUTBACK; |
240 | } |
241 | |
242 | static void |
243 | mouse_attr_get(pTHX_ SV* const self, MAGIC* const mg){ |
244 | U16 const flags = MOUSE_mg_flags(mg); |
245 | SV* const slot = MOUSE_mg_slot(mg); |
246 | SV* value; |
247 | |
248 | value = mouse_instance_get_slot(aTHX_ self, slot); |
249 | |
250 | /* check_lazy */ |
251 | if( !value && flags & MOUSEf_ATTR_IS_LAZY ){ |
252 | AV* const xa = MOUSE_mg_xa(mg); |
253 | SV* const attr = MOUSE_xa_attribute(xa); |
254 | |
255 | /* get default value by $attr->default or $attr->builder */ |
256 | if(flags & MOUSEf_ATTR_HAS_DEFAULT){ |
257 | value = mcall0s(attr, "default"); |
258 | |
259 | if(SvROK(value) && SvTYPE(SvRV(value)) == SVt_PVCV){ |
260 | value = mcall0(self, value); |
261 | } |
262 | } |
263 | else if(flags & MOUSEf_ATTR_HAS_BUILDER){ |
264 | SV* const builder = mcall0s(attr, "builder"); |
265 | value = mcall0(self, builder); |
266 | } |
267 | |
268 | if(!value){ |
269 | value = sv_newmortal(); |
270 | } |
271 | |
272 | /* apply coerce and type constraint */ |
273 | if(flags & MOUSEf_ATTR_HAS_TC){ |
274 | value = mouse_apply_type_constraint(aTHX_ xa, value, flags); |
275 | } |
276 | |
277 | /* store value to slot */ |
278 | value = mouse_instance_set_slot(aTHX_ self, slot, value); |
279 | } |
280 | |
208ffaeb |
281 | PUSH_VALUE(value, flags); |
646c0371 |
282 | } |
283 | |
284 | static void |
285 | mouse_attr_set(pTHX_ SV* const self, MAGIC* const mg, SV* value){ |
286 | U16 const flags = MOUSE_mg_flags(mg); |
287 | SV* const slot = MOUSE_mg_slot(mg); |
288 | |
289 | if(flags & MOUSEf_ATTR_HAS_TC){ |
290 | value = mouse_apply_type_constraint(aTHX_ MOUSE_mg_xa(mg), value, flags); |
291 | } |
292 | |
293 | mouse_instance_set_slot(aTHX_ self, slot, value); |
294 | |
295 | if(flags & MOUSEf_ATTR_IS_WEAK_REF){ |
296 | mouse_instance_weaken_slot(aTHX_ self, slot); |
297 | } |
298 | |
299 | if(flags & MOUSEf_ATTR_HAS_TRIGGER){ |
300 | SV* const trigger = mcall0s(MOUSE_mg_attribute(mg), "trigger"); |
301 | dSP; |
302 | |
303 | PUSHMARK(SP); |
304 | EXTEND(SP, 2); |
305 | PUSHs(self); |
306 | PUSHs(value); |
307 | |
308 | PUTBACK; |
309 | call_sv(trigger, G_VOID | G_DISCARD); |
310 | /* need not SPAGAIN */ |
311 | } |
312 | |
208ffaeb |
313 | PUSH_VALUE(value, flags); |
646c0371 |
314 | } |
315 | |
316 | XS(mouse_xs_accessor) |
317 | { |
318 | dVAR; dXSARGS; |
319 | dMOUSE_self; |
320 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
321 | |
322 | SP -= items; /* PPCODE */ |
323 | PUTBACK; |
324 | |
325 | if(items == 1){ /* reader */ |
326 | mouse_attr_get(aTHX_ self, mg); |
327 | } |
328 | else if (items == 2){ /* writer */ |
329 | mouse_attr_set(aTHX_ self, mg, ST(1)); |
330 | } |
331 | else{ |
332 | mouse_throw_error(MOUSE_mg_attribute(mg), NULL, |
333 | "Expected exactly one or two argument for an accessor"); |
334 | } |
335 | } |
336 | |
337 | |
338 | XS(mouse_xs_reader) |
339 | { |
340 | dVAR; dXSARGS; |
341 | dMOUSE_self; |
342 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
343 | |
344 | if (items != 1) { |
345 | mouse_throw_error(MOUSE_mg_attribute(mg), NULL, |
346 | "Cannot assign a value to a read-only accessor"); |
347 | } |
348 | |
349 | SP -= items; /* PPCODE */ |
350 | PUTBACK; |
351 | |
352 | mouse_attr_get(aTHX_ self, mg); |
353 | } |
354 | |
355 | XS(mouse_xs_writer) |
356 | { |
357 | dVAR; dXSARGS; |
358 | dMOUSE_self; |
359 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
360 | |
361 | if (items != 2) { |
362 | mouse_throw_error(MOUSE_mg_attribute(mg), NULL, |
363 | "Too few arguments for a write-only accessor"); |
364 | } |
365 | |
366 | SP -= items; /* PPCODE */ |
367 | PUTBACK; |
368 | |
369 | mouse_attr_set(aTHX_ self, mg, ST(1)); |
370 | } |
371 | |
372 | /* simple accessors */ |
373 | |
374 | /* |
375 | static MAGIC* |
376 | mouse_accessor_get_mg(pTHX_ CV* const xsub){ |
377 | return moose_mg_find(aTHX_ (SV*)xsub, &mouse_simple_accessor_vtbl, MOOSEf_DIE_ON_FAIL); |
378 | } |
379 | */ |
380 | |
381 | CV* |
382 | mouse_install_simple_accessor(pTHX_ const char* const fq_name, const char* const key, I32 const keylen, XSUBADDR_t const accessor_impl){ |
383 | CV* const xsub = newXS((char*)fq_name, accessor_impl, __FILE__); |
384 | SV* const slot = newSVpvn_share(key, keylen, 0U); |
385 | MAGIC* mg; |
386 | |
387 | if(!fq_name){ |
388 | /* anonymous xsubs need sv_2mortal */ |
389 | sv_2mortal((SV*)xsub); |
390 | } |
391 | |
392 | mg = sv_magicext((SV*)xsub, slot, PERL_MAGIC_ext, &mouse_accessor_vtbl, NULL, 0); |
393 | SvREFCNT_dec(slot); /* sv_magicext() increases refcnt in mg_obj */ |
394 | |
395 | /* NOTE: |
396 | * although we use MAGIC for gc, we also store mg to CvXSUBANY for efficiency (gfx) |
397 | */ |
398 | CvXSUBANY(xsub).any_ptr = (void*)mg; |
399 | |
400 | return xsub; |
401 | } |
402 | |
403 | XS(mouse_xs_simple_reader) |
404 | { |
405 | dVAR; dXSARGS; |
406 | dMOUSE_self; |
407 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
408 | SV* value; |
409 | |
410 | if (items != 1) { |
411 | croak("Expected exactly one argument for a reader for '%"SVf"'", slot); |
412 | } |
413 | |
414 | value = mouse_instance_get_slot(aTHX_ self, slot); |
415 | ST(0) = value ? value : &PL_sv_undef; |
416 | XSRETURN(1); |
417 | } |
418 | |
419 | |
420 | XS(mouse_xs_simple_writer) |
421 | { |
422 | dVAR; dXSARGS; |
423 | dMOUSE_self; |
424 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
425 | |
426 | if (items != 2) { |
427 | croak("Expected exactly two argument for a writer for '%"SVf"'", slot); |
428 | } |
429 | |
430 | ST(0) = mouse_instance_set_slot(aTHX_ self, slot, ST(1)); |
431 | XSRETURN(1); |
432 | } |
433 | |
434 | XS(mouse_xs_simple_clearer) |
435 | { |
436 | dVAR; dXSARGS; |
437 | dMOUSE_self; |
438 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
439 | SV* value; |
440 | |
441 | if (items != 1) { |
442 | croak("Expected exactly one argument for a clearer for '%"SVf"'", slot); |
443 | } |
444 | |
445 | value = mouse_instance_delete_slot(aTHX_ self, slot); |
446 | ST(0) = value ? value : &PL_sv_undef; |
447 | XSRETURN(1); |
448 | } |
449 | |
450 | XS(mouse_xs_simple_predicate) |
451 | { |
452 | dVAR; dXSARGS; |
453 | dMOUSE_self; |
454 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
455 | |
456 | if (items != 1) { |
457 | croak("Expected exactly one argument for a predicate for '%"SVf"'", slot); |
458 | } |
459 | |
460 | ST(0) = boolSV( mouse_instance_has_slot(aTHX_ self, slot) ); |
461 | XSRETURN(1); |
462 | } |
463 | |
76770976 |
464 | /* simple instance slot accessor (or Mouse::Meta::Instance) */ |
646c0371 |
465 | |
466 | SV* |
467 | mouse_instance_create(pTHX_ HV* const stash) { |
468 | assert(stash); |
469 | return sv_bless( newRV_noinc((SV*)newHV()), stash ); |
470 | } |
471 | |
472 | SV* |
473 | mouse_instance_clone(pTHX_ SV* const instance) { |
474 | HV* proto; |
475 | assert(instance); |
476 | |
477 | CHECK_INSTANCE(instance); |
478 | proto = newHVhv((HV*)SvRV(instance)); |
479 | return sv_bless( newRV_noinc((SV*)proto), SvSTASH(SvRV(instance)) ); |
480 | } |
481 | |
482 | bool |
483 | mouse_instance_has_slot(pTHX_ SV* const instance, SV* const slot) { |
484 | assert(instance); |
485 | assert(slot); |
486 | CHECK_INSTANCE(instance); |
487 | return hv_exists_ent((HV*)SvRV(instance), slot, 0U); |
488 | } |
489 | |
490 | SV* |
491 | mouse_instance_get_slot(pTHX_ SV* const instance, SV* const slot) { |
492 | HE* he; |
493 | assert(instance); |
494 | assert(slot); |
495 | CHECK_INSTANCE(instance); |
496 | he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U); |
497 | return he ? HeVAL(he) : NULL; |
498 | } |
499 | |
500 | SV* |
501 | mouse_instance_set_slot(pTHX_ SV* const instance, SV* const slot, SV* const value) { |
502 | HE* he; |
503 | SV* sv; |
504 | assert(instance); |
505 | assert(slot); |
506 | assert(value); |
507 | CHECK_INSTANCE(instance); |
508 | he = hv_fetch_ent((HV*)SvRV(instance), slot, TRUE, 0U); |
509 | sv = HeVAL(he); |
510 | sv_setsv_mg(sv, value); |
511 | return sv; |
512 | } |
513 | |
514 | SV* |
515 | mouse_instance_delete_slot(pTHX_ SV* const instance, SV* const slot) { |
516 | assert(instance); |
517 | assert(slot); |
518 | CHECK_INSTANCE(instance); |
519 | return hv_delete_ent((HV*)SvRV(instance), slot, 0, 0U); |
520 | } |
521 | |
522 | void |
523 | mouse_instance_weaken_slot(pTHX_ SV* const instance, SV* const slot) { |
524 | HE* he; |
525 | assert(instance); |
526 | assert(slot); |
527 | CHECK_INSTANCE(instance); |
528 | he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U); |
529 | if(he){ |
530 | sv_rvweaken(HeVAL(he)); |
531 | } |
532 | } |
533 | \r |
534 | MODULE = Mouse::Meta::Method::Accessor::XS PACKAGE = Mouse::Meta::Method::Accessor::XS |
535 | |
536 | PROTOTYPES: DISABLE |
537 | VERSIONCHECK: DISABLE |
538 | |
539 | CV* |
540 | _generate_accessor(klass, SV* attr, metaclass) |
541 | CODE: |
542 | { |
543 | RETVAL = mouse_instantiate_xs_accessor(aTHX_ attr, mouse_xs_accessor); |
544 | } |
545 | OUTPUT: |
546 | RETVAL |
547 | |
548 | CV* |
549 | _generate_reader(klass, SV* attr, metaclass) |
550 | CODE: |
551 | { |
552 | RETVAL = mouse_instantiate_xs_accessor(aTHX_ attr, mouse_xs_reader); |
553 | } |
554 | OUTPUT: |
555 | RETVAL |
556 | |
557 | CV* |
558 | _generate_writer(klass, SV* attr, metaclass) |
559 | CODE: |
560 | { |
561 | RETVAL = mouse_instantiate_xs_accessor(aTHX_ attr, mouse_xs_writer); |
562 | } |
563 | OUTPUT: |
564 | RETVAL |
565 | |
566 | CV* |
567 | _generate_clearer(klass, SV* attr, metaclass) |
568 | CODE: |
569 | { |
570 | SV* const slot = mcall0s(attr, "name"); |
571 | STRLEN len; |
572 | const char* const pv = SvPV_const(slot, len); |
573 | RETVAL = mouse_install_simple_accessor(aTHX_ NULL, pv, len, mouse_xs_simple_clearer); |
574 | } |
575 | OUTPUT: |
576 | RETVAL |
577 | |
578 | CV* |
579 | _generate_predicate(klass, SV* attr, metaclass) |
580 | CODE: |
581 | { |
582 | SV* const slot = mcall0s(attr, "name"); |
583 | STRLEN len; |
584 | const char* const pv = SvPV_const(slot, len); |
585 | RETVAL = mouse_install_simple_accessor(aTHX_ NULL, pv, len, mouse_xs_simple_predicate); |
586 | } |
587 | OUTPUT: |
588 | RETVAL |
589 | |