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) { |
55 | SV* self; |
56 | |
57 | if(items < 1){ |
58 | croak("Too few arguments for %s", GvNAME(CvGV(cv))); |
59 | } |
60 | |
61 | /* NOTE: If self has GETMAGIC, $self->accessor will invoke GETMAGIC |
62 | * before calling methods, so SvGETMAGIC(self) is not necessarily needed here. |
63 | */ |
64 | |
76770976 |
65 | return ST(0); |
646c0371 |
66 | } |
67 | |
68 | |
69 | CV* |
70 | mouse_instantiate_xs_accessor(pTHX_ SV* const attr, XSUBADDR_t const accessor_impl){ |
71 | SV* const slot = mcall0(attr, mouse_name); |
72 | AV* const xa = newAV(); |
73 | CV* xsub; |
74 | MAGIC* mg; |
75 | U16 flags = 0; |
76 | |
77 | sv_2mortal((SV*)xa); |
78 | |
79 | xsub = newXS(NULL, accessor_impl, __FILE__); |
80 | sv_2mortal((SV*)xsub); |
81 | |
82 | mg = sv_magicext((SV*)xsub, slot, PERL_MAGIC_ext, &mouse_accessor_vtbl, (char*)xa, HEf_SVKEY); |
83 | |
84 | /* NOTE: |
85 | * although we use MAGIC for gc, we also store mg to CvXSUBANY for efficiency (gfx) |
86 | */ |
87 | CvXSUBANY(xsub).any_ptr = (void*)mg; |
88 | |
89 | av_extend(xa, MOUSE_XA_last - 1); |
90 | |
91 | av_store(xa, MOUSE_XA_ATTRIBUTE, newSVsv(attr)); |
92 | |
93 | /* prepare attribute status */ |
94 | /* XXX: making it lazy is a good way? */ |
95 | |
96 | if(SvTRUEx(mcall0s(attr, "has_type_constraint"))){ |
97 | SV* tc; |
98 | flags |= MOUSEf_ATTR_HAS_TC; |
99 | |
100 | ENTER; |
101 | SAVETMPS; |
102 | |
103 | tc = mcall0s(attr, "type_constraint"); |
104 | av_store(xa, MOUSE_XA_TC, newSVsv(tc)); |
105 | |
106 | if(SvTRUEx(mcall0s(attr, "should_auto_deref"))){ |
107 | flags |= MOUSEf_ATTR_SHOULD_AUTO_DEREF; |
108 | if( SvTRUEx(mcall1s(tc, "is_a_type_of", newSVpvs_flags("ArrayRef", SVs_TEMP))) ){ |
109 | flags |= MOUSEf_TC_IS_ARRAYREF; |
110 | } |
111 | else if( SvTRUEx(mcall1s(tc, "is_a_type_of", newSVpvs_flags("HashRef", SVs_TEMP))) ){ |
112 | flags |= MOUSEf_TC_IS_HASHREF; |
113 | } |
114 | else{ |
115 | mouse_throw_error(attr, tc, |
116 | "Can not auto de-reference the type constraint '%"SVf"'", |
117 | mcall0(tc, mouse_name)); |
118 | } |
119 | } |
120 | |
121 | if(SvTRUEx(mcall0s(attr, "should_coerce"))){ |
122 | flags |= MOUSEf_ATTR_SHOULD_COERCE; |
123 | } |
124 | |
125 | FREETMPS; |
126 | LEAVE; |
127 | } |
128 | |
129 | if(SvTRUEx(mcall0s(attr, "has_trigger"))){ |
130 | flags |= MOUSEf_ATTR_HAS_TRIGGER; |
131 | } |
132 | |
133 | if(SvTRUEx(mcall0s(attr, "is_lazy"))){ |
134 | flags |= MOUSEf_ATTR_IS_LAZY; |
135 | |
136 | if(SvTRUEx(mcall0s(attr, "has_builder"))){ |
137 | flags |= MOUSEf_ATTR_HAS_BUILDER; |
138 | } |
139 | else if(SvTRUEx(mcall0s(attr, "has_default"))){ |
140 | flags |= MOUSEf_ATTR_HAS_DEFAULT; |
141 | } |
142 | } |
143 | |
144 | if(SvTRUEx(mcall0s(attr, "is_weak_ref"))){ |
145 | flags |= MOUSEf_ATTR_IS_WEAK_REF; |
146 | } |
147 | |
148 | if(SvTRUEx(mcall0s(attr, "is_required"))){ |
149 | flags |= MOUSEf_ATTR_IS_REQUIRED; |
150 | } |
151 | |
152 | MOUSE_mg_flags(mg) = flags; |
153 | |
154 | return xsub; |
155 | } |
156 | |
157 | static SV* |
158 | mouse_apply_type_constraint(pTHX_ AV* const xa, SV* value, U16 const flags){ |
159 | SV* const tc = MOUSE_xa_tc(xa); |
160 | SV* tc_code; |
161 | |
162 | if(flags & MOUSEf_ATTR_SHOULD_COERCE){ |
163 | value = mcall1s(tc, "coerce", value); |
164 | } |
165 | |
166 | if(!SvOK(MOUSE_xa_tc_code(xa))){ |
167 | XS(XS_Mouse__Util__TypeConstraints_Item); /* prototype defined in Mouse.xs */ |
168 | |
169 | tc_code = mcall0s(tc, "_compiled_type_constraint"); |
170 | |
171 | if(SvROK(tc_code) && SvTYPE(SvRV(tc_code)) |
172 | && CvXSUB((CV*)SvRV(tc_code)) == XS_Mouse__Util__TypeConstraints_Item){ |
173 | /* built-in type constraints */ |
174 | mouse_tc const id = CvXSUBANY((CV*)SvRV(tc_code)).any_i32; |
175 | av_store(xa, MOUSE_XA_TC_CODE, newSViv(id)); |
176 | } |
177 | else{ |
178 | av_store(xa, MOUSE_XA_TC_CODE, newSVsv(tc_code)); |
179 | } |
180 | } |
181 | else{ |
182 | tc_code = MOUSE_xa_tc_code(xa); |
183 | } |
184 | |
185 | if(!mouse_tc_check(aTHX_ tc_code, value)){ |
186 | mouse_throw_error(MOUSE_xa_attribute(xa), value, |
187 | "Attribute (%"SVf") does not pass the type constraint because: %"SVf, |
188 | mcall0(MOUSE_xa_attribute(xa), mouse_name), |
189 | mcall1s(tc, "get_message", value)); |
190 | } |
191 | |
192 | return value; |
193 | } |
194 | |
208ffaeb |
195 | #define PUSH_VALUE(value, flags) STMT_START { \ |
196 | if((flags) & MOUSEf_ATTR_SHOULD_AUTO_DEREF && GIMME_V == G_ARRAY){ \ |
197 | mouse_push_values(aTHX_ value, (flags)); \ |
198 | } \ |
199 | else{ \ |
200 | dSP; \ |
201 | XPUSHs(value ? value : &PL_sv_undef); \ |
202 | PUTBACK; \ |
203 | } \ |
204 | } STMT_END \ |
646c0371 |
205 | |
206 | /* pushes return values, does auto-deref if needed */ |
207 | static void |
208 | mouse_push_values(pTHX_ SV* const value, U16 const flags){ |
209 | dSP; |
210 | |
208ffaeb |
211 | assert( flags & MOUSEf_ATTR_SHOULD_AUTO_DEREF && GIMME_V == G_ARRAY ); |
646c0371 |
212 | |
208ffaeb |
213 | if(!(value && SvOK(value))){ |
214 | return; |
215 | } |
646c0371 |
216 | |
208ffaeb |
217 | if(flags & MOUSEf_TC_IS_ARRAYREF){ |
218 | AV* const av = (AV*)SvRV(value); |
219 | I32 len; |
220 | I32 i; |
646c0371 |
221 | |
208ffaeb |
222 | if(SvTYPE(av) != SVt_PVAV){ |
223 | croak("Mouse-panic: Not an ARRAY reference"); |
646c0371 |
224 | } |
646c0371 |
225 | |
208ffaeb |
226 | len = av_len(av) + 1; |
227 | EXTEND(SP, len); |
228 | for(i = 0; i < len; i++){ |
229 | SV** const svp = av_fetch(av, i, FALSE); |
230 | PUSHs(svp ? *svp : &PL_sv_undef); |
646c0371 |
231 | } |
232 | } |
208ffaeb |
233 | else if(flags & MOUSEf_TC_IS_HASHREF){ |
234 | HV* const hv = (HV*)SvRV(value); |
235 | HE* he; |
236 | |
237 | if(SvTYPE(hv) != SVt_PVHV){ |
238 | croak("Mouse-panic: Not a HASH reference"); |
239 | } |
240 | |
241 | hv_iterinit(hv); |
242 | while((he = hv_iternext(hv))){ |
243 | EXTEND(SP, 2); |
244 | PUSHs(hv_iterkeysv(he)); |
245 | PUSHs(hv_iterval(hv, he)); |
246 | } |
646c0371 |
247 | } |
248 | |
249 | PUTBACK; |
250 | } |
251 | |
252 | static void |
253 | mouse_attr_get(pTHX_ SV* const self, MAGIC* const mg){ |
254 | U16 const flags = MOUSE_mg_flags(mg); |
255 | SV* const slot = MOUSE_mg_slot(mg); |
256 | SV* value; |
257 | |
258 | value = mouse_instance_get_slot(aTHX_ self, slot); |
259 | |
260 | /* check_lazy */ |
261 | if( !value && flags & MOUSEf_ATTR_IS_LAZY ){ |
262 | AV* const xa = MOUSE_mg_xa(mg); |
263 | SV* const attr = MOUSE_xa_attribute(xa); |
264 | |
265 | /* get default value by $attr->default or $attr->builder */ |
266 | if(flags & MOUSEf_ATTR_HAS_DEFAULT){ |
267 | value = mcall0s(attr, "default"); |
268 | |
269 | if(SvROK(value) && SvTYPE(SvRV(value)) == SVt_PVCV){ |
270 | value = mcall0(self, value); |
271 | } |
272 | } |
273 | else if(flags & MOUSEf_ATTR_HAS_BUILDER){ |
274 | SV* const builder = mcall0s(attr, "builder"); |
275 | value = mcall0(self, builder); |
276 | } |
277 | |
278 | if(!value){ |
279 | value = sv_newmortal(); |
280 | } |
281 | |
282 | /* apply coerce and type constraint */ |
283 | if(flags & MOUSEf_ATTR_HAS_TC){ |
284 | value = mouse_apply_type_constraint(aTHX_ xa, value, flags); |
285 | } |
286 | |
287 | /* store value to slot */ |
288 | value = mouse_instance_set_slot(aTHX_ self, slot, value); |
289 | } |
290 | |
208ffaeb |
291 | PUSH_VALUE(value, flags); |
646c0371 |
292 | } |
293 | |
294 | static void |
295 | mouse_attr_set(pTHX_ SV* const self, MAGIC* const mg, SV* value){ |
296 | U16 const flags = MOUSE_mg_flags(mg); |
297 | SV* const slot = MOUSE_mg_slot(mg); |
298 | |
299 | if(flags & MOUSEf_ATTR_HAS_TC){ |
300 | value = mouse_apply_type_constraint(aTHX_ MOUSE_mg_xa(mg), value, flags); |
301 | } |
302 | |
303 | mouse_instance_set_slot(aTHX_ self, slot, value); |
304 | |
305 | if(flags & MOUSEf_ATTR_IS_WEAK_REF){ |
306 | mouse_instance_weaken_slot(aTHX_ self, slot); |
307 | } |
308 | |
309 | if(flags & MOUSEf_ATTR_HAS_TRIGGER){ |
310 | SV* const trigger = mcall0s(MOUSE_mg_attribute(mg), "trigger"); |
311 | dSP; |
312 | |
313 | PUSHMARK(SP); |
314 | EXTEND(SP, 2); |
315 | PUSHs(self); |
316 | PUSHs(value); |
317 | |
318 | PUTBACK; |
319 | call_sv(trigger, G_VOID | G_DISCARD); |
320 | /* need not SPAGAIN */ |
321 | } |
322 | |
208ffaeb |
323 | PUSH_VALUE(value, flags); |
646c0371 |
324 | } |
325 | |
326 | XS(mouse_xs_accessor) |
327 | { |
328 | dVAR; dXSARGS; |
329 | dMOUSE_self; |
330 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
331 | |
332 | SP -= items; /* PPCODE */ |
333 | PUTBACK; |
334 | |
335 | if(items == 1){ /* reader */ |
336 | mouse_attr_get(aTHX_ self, mg); |
337 | } |
338 | else if (items == 2){ /* writer */ |
339 | mouse_attr_set(aTHX_ self, mg, ST(1)); |
340 | } |
341 | else{ |
342 | mouse_throw_error(MOUSE_mg_attribute(mg), NULL, |
343 | "Expected exactly one or two argument for an accessor"); |
344 | } |
345 | } |
346 | |
347 | |
348 | XS(mouse_xs_reader) |
349 | { |
350 | dVAR; dXSARGS; |
351 | dMOUSE_self; |
352 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
353 | |
354 | if (items != 1) { |
355 | mouse_throw_error(MOUSE_mg_attribute(mg), NULL, |
356 | "Cannot assign a value to a read-only accessor"); |
357 | } |
358 | |
359 | SP -= items; /* PPCODE */ |
360 | PUTBACK; |
361 | |
362 | mouse_attr_get(aTHX_ self, mg); |
363 | } |
364 | |
365 | XS(mouse_xs_writer) |
366 | { |
367 | dVAR; dXSARGS; |
368 | dMOUSE_self; |
369 | MAGIC* const mg = (MAGIC*)XSANY.any_ptr; |
370 | |
371 | if (items != 2) { |
372 | mouse_throw_error(MOUSE_mg_attribute(mg), NULL, |
373 | "Too few arguments for a write-only accessor"); |
374 | } |
375 | |
376 | SP -= items; /* PPCODE */ |
377 | PUTBACK; |
378 | |
379 | mouse_attr_set(aTHX_ self, mg, ST(1)); |
380 | } |
381 | |
382 | /* simple accessors */ |
383 | |
384 | /* |
385 | static MAGIC* |
386 | mouse_accessor_get_mg(pTHX_ CV* const xsub){ |
387 | return moose_mg_find(aTHX_ (SV*)xsub, &mouse_simple_accessor_vtbl, MOOSEf_DIE_ON_FAIL); |
388 | } |
389 | */ |
390 | |
391 | CV* |
392 | mouse_install_simple_accessor(pTHX_ const char* const fq_name, const char* const key, I32 const keylen, XSUBADDR_t const accessor_impl){ |
393 | CV* const xsub = newXS((char*)fq_name, accessor_impl, __FILE__); |
394 | SV* const slot = newSVpvn_share(key, keylen, 0U); |
395 | MAGIC* mg; |
396 | |
397 | if(!fq_name){ |
398 | /* anonymous xsubs need sv_2mortal */ |
399 | sv_2mortal((SV*)xsub); |
400 | } |
401 | |
402 | mg = sv_magicext((SV*)xsub, slot, PERL_MAGIC_ext, &mouse_accessor_vtbl, NULL, 0); |
403 | SvREFCNT_dec(slot); /* sv_magicext() increases refcnt in mg_obj */ |
404 | |
405 | /* NOTE: |
406 | * although we use MAGIC for gc, we also store mg to CvXSUBANY for efficiency (gfx) |
407 | */ |
408 | CvXSUBANY(xsub).any_ptr = (void*)mg; |
409 | |
410 | return xsub; |
411 | } |
412 | |
413 | XS(mouse_xs_simple_reader) |
414 | { |
415 | dVAR; dXSARGS; |
416 | dMOUSE_self; |
417 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
418 | SV* value; |
419 | |
420 | if (items != 1) { |
421 | croak("Expected exactly one argument for a reader for '%"SVf"'", slot); |
422 | } |
423 | |
424 | value = mouse_instance_get_slot(aTHX_ self, slot); |
425 | ST(0) = value ? value : &PL_sv_undef; |
426 | XSRETURN(1); |
427 | } |
428 | |
429 | |
430 | XS(mouse_xs_simple_writer) |
431 | { |
432 | dVAR; dXSARGS; |
433 | dMOUSE_self; |
434 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
435 | |
436 | if (items != 2) { |
437 | croak("Expected exactly two argument for a writer for '%"SVf"'", slot); |
438 | } |
439 | |
440 | ST(0) = mouse_instance_set_slot(aTHX_ self, slot, ST(1)); |
441 | XSRETURN(1); |
442 | } |
443 | |
444 | XS(mouse_xs_simple_clearer) |
445 | { |
446 | dVAR; dXSARGS; |
447 | dMOUSE_self; |
448 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
449 | SV* value; |
450 | |
451 | if (items != 1) { |
452 | croak("Expected exactly one argument for a clearer for '%"SVf"'", slot); |
453 | } |
454 | |
455 | value = mouse_instance_delete_slot(aTHX_ self, slot); |
456 | ST(0) = value ? value : &PL_sv_undef; |
457 | XSRETURN(1); |
458 | } |
459 | |
460 | XS(mouse_xs_simple_predicate) |
461 | { |
462 | dVAR; dXSARGS; |
463 | dMOUSE_self; |
464 | SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr); |
465 | |
466 | if (items != 1) { |
467 | croak("Expected exactly one argument for a predicate for '%"SVf"'", slot); |
468 | } |
469 | |
470 | ST(0) = boolSV( mouse_instance_has_slot(aTHX_ self, slot) ); |
471 | XSRETURN(1); |
472 | } |
473 | |
76770976 |
474 | /* simple instance slot accessor (or Mouse::Meta::Instance) */ |
646c0371 |
475 | |
476 | SV* |
477 | mouse_instance_create(pTHX_ HV* const stash) { |
478 | assert(stash); |
479 | return sv_bless( newRV_noinc((SV*)newHV()), stash ); |
480 | } |
481 | |
482 | SV* |
483 | mouse_instance_clone(pTHX_ SV* const instance) { |
484 | HV* proto; |
485 | assert(instance); |
486 | |
487 | CHECK_INSTANCE(instance); |
488 | proto = newHVhv((HV*)SvRV(instance)); |
489 | return sv_bless( newRV_noinc((SV*)proto), SvSTASH(SvRV(instance)) ); |
490 | } |
491 | |
492 | bool |
493 | mouse_instance_has_slot(pTHX_ SV* const instance, SV* const slot) { |
494 | assert(instance); |
495 | assert(slot); |
496 | CHECK_INSTANCE(instance); |
497 | return hv_exists_ent((HV*)SvRV(instance), slot, 0U); |
498 | } |
499 | |
500 | SV* |
501 | mouse_instance_get_slot(pTHX_ SV* const instance, SV* const slot) { |
502 | HE* he; |
503 | assert(instance); |
504 | assert(slot); |
505 | CHECK_INSTANCE(instance); |
506 | he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U); |
507 | return he ? HeVAL(he) : NULL; |
508 | } |
509 | |
510 | SV* |
511 | mouse_instance_set_slot(pTHX_ SV* const instance, SV* const slot, SV* const value) { |
512 | HE* he; |
513 | SV* sv; |
514 | assert(instance); |
515 | assert(slot); |
516 | assert(value); |
517 | CHECK_INSTANCE(instance); |
518 | he = hv_fetch_ent((HV*)SvRV(instance), slot, TRUE, 0U); |
519 | sv = HeVAL(he); |
520 | sv_setsv_mg(sv, value); |
521 | return sv; |
522 | } |
523 | |
524 | SV* |
525 | mouse_instance_delete_slot(pTHX_ SV* const instance, SV* const slot) { |
526 | assert(instance); |
527 | assert(slot); |
528 | CHECK_INSTANCE(instance); |
529 | return hv_delete_ent((HV*)SvRV(instance), slot, 0, 0U); |
530 | } |
531 | |
532 | void |
533 | mouse_instance_weaken_slot(pTHX_ SV* const instance, SV* const slot) { |
534 | HE* he; |
535 | assert(instance); |
536 | assert(slot); |
537 | CHECK_INSTANCE(instance); |
538 | he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U); |
539 | if(he){ |
540 | sv_rvweaken(HeVAL(he)); |
541 | } |
542 | } |
543 | \r |
544 | MODULE = Mouse::Meta::Method::Accessor::XS PACKAGE = Mouse::Meta::Method::Accessor::XS |
545 | |
546 | PROTOTYPES: DISABLE |
547 | VERSIONCHECK: DISABLE |
548 | |
549 | CV* |
550 | _generate_accessor(klass, SV* attr, metaclass) |
551 | CODE: |
552 | { |
553 | RETVAL = mouse_instantiate_xs_accessor(aTHX_ attr, mouse_xs_accessor); |
554 | } |
555 | OUTPUT: |
556 | RETVAL |
557 | |
558 | CV* |
559 | _generate_reader(klass, SV* attr, metaclass) |
560 | CODE: |
561 | { |
562 | RETVAL = mouse_instantiate_xs_accessor(aTHX_ attr, mouse_xs_reader); |
563 | } |
564 | OUTPUT: |
565 | RETVAL |
566 | |
567 | CV* |
568 | _generate_writer(klass, SV* attr, metaclass) |
569 | CODE: |
570 | { |
571 | RETVAL = mouse_instantiate_xs_accessor(aTHX_ attr, mouse_xs_writer); |
572 | } |
573 | OUTPUT: |
574 | RETVAL |
575 | |
576 | CV* |
577 | _generate_clearer(klass, SV* attr, metaclass) |
578 | CODE: |
579 | { |
580 | SV* const slot = mcall0s(attr, "name"); |
581 | STRLEN len; |
582 | const char* const pv = SvPV_const(slot, len); |
583 | RETVAL = mouse_install_simple_accessor(aTHX_ NULL, pv, len, mouse_xs_simple_clearer); |
584 | } |
585 | OUTPUT: |
586 | RETVAL |
587 | |
588 | CV* |
589 | _generate_predicate(klass, SV* attr, metaclass) |
590 | CODE: |
591 | { |
592 | SV* const slot = mcall0s(attr, "name"); |
593 | STRLEN len; |
594 | const char* const pv = SvPV_const(slot, len); |
595 | RETVAL = mouse_install_simple_accessor(aTHX_ NULL, pv, len, mouse_xs_simple_predicate); |
596 | } |
597 | OUTPUT: |
598 | RETVAL |
599 | |