3 #define CHECK_INSTANCE(instance) STMT_START{ \
5 if(!(SvROK(instance) && SvTYPE(SvRV(instance)) == SVt_PVHV)){ \
6 croak("Invalid object instance: '%"SVf"'", instance); \
11 #define MOUSE_mg_attribute(mg) MOUSE_xa_attribute(MOUSE_mg_xa(mg))
13 static MGVTBL mouse_accessor_vtbl; /* MAGIC identity */
15 #define dMOUSE_self SV* const self = mouse_accessor_get_self(aTHX_ ax, items, cv)
18 mouse_accessor_get_self(pTHX_ I32 const ax, I32 const items, CV* const cv) {
20 croak("Too few arguments for %s", GvNAME(CvGV(cv)));
22 /* NOTE: If self has GETMAGIC, $self->accessor will invoke GETMAGIC
23 * before calling methods, so SvGETMAGIC(self) is not required here.
30 mouse_accessor_generate(pTHX_ SV* const attr, XSUBADDR_t const accessor_impl){
31 AV* const xa = mouse_get_xa(aTHX_ attr);
35 xsub = newXS(NULL, accessor_impl, __FILE__);
36 sv_2mortal((SV*)xsub);
38 mg = sv_magicext((SV*)xsub, MOUSE_xa_slot(xa),
39 PERL_MAGIC_ext, &mouse_accessor_vtbl, (char*)xa, HEf_SVKEY);
41 MOUSE_mg_flags(mg) = (U16)MOUSE_xa_flags(xa);
44 * although we use MAGIC for gc, we also store mg to
45 * CvXSUBANY for efficiency (gfx)
47 CvXSUBANY(xsub).any_ptr = (void*)mg;
53 /* pushes return values, does auto-deref if needed */
55 mouse_push_values(pTHX_ SV* const value, U16 const flags){
58 assert( flags & MOUSEf_ATTR_SHOULD_AUTO_DEREF && GIMME_V == G_ARRAY );
60 if(!(value && SvOK(value))){
64 if(flags & MOUSEf_TC_IS_ARRAYREF){
69 if(!IsArrayRef(value)){
70 croak("Mouse-panic: Not an ARRAY reference");
73 av = (AV*)SvRV(value);
76 for(i = 0; i < len; i++){
77 SV** const svp = av_fetch(av, i, FALSE);
78 PUSHs(svp ? *svp : &PL_sv_undef);
85 assert(flags & MOUSEf_TC_IS_HASHREF);
87 if(!IsHashRef(value)){
88 croak("Mouse-panic: Not a HASH reference");
91 hv = (HV*)SvRV(value);
93 while((he = hv_iternext(hv))){
95 PUSHs(hv_iterkeysv(he));
96 PUSHs(hv_iterval(hv, he));
104 mouse_push_value(pTHX_ SV* const value, U16 const flags) {
105 if(flags & MOUSEf_ATTR_SHOULD_AUTO_DEREF && GIMME_V == G_ARRAY){
106 mouse_push_values(aTHX_ value, flags);
110 XPUSHs(value ? value : &PL_sv_undef);
116 mouse_attr_get(pTHX_ SV* const self, MAGIC* const mg){
117 U16 const flags = MOUSE_mg_flags(mg);
120 value = get_slot(self, MOUSE_mg_slot(mg));
123 if( !value && flags & MOUSEf_ATTR_IS_LAZY ){
124 value = mouse_xa_set_default(aTHX_ MOUSE_mg_xa(mg), self);
127 mouse_push_value(aTHX_ value, flags);
131 mouse_attr_set(pTHX_ SV* const self, MAGIC* const mg, SV* value){
132 U16 const flags = MOUSE_mg_flags(mg);
133 SV* const slot = MOUSE_mg_slot(mg);
135 if(flags & MOUSEf_ATTR_HAS_TC){
136 value = mouse_xa_apply_type_constraint(aTHX_ MOUSE_mg_xa(mg), value, flags);
139 value = set_slot(self, slot, value);
141 if(flags & MOUSEf_ATTR_IS_WEAK_REF){
142 weaken_slot(self, slot);
145 if(flags & MOUSEf_ATTR_HAS_TRIGGER){
146 SV* const trigger = mcall0s(MOUSE_mg_attribute(mg), "trigger");
149 /* NOTE: triggers can remove value, so
150 value must be copied here,
151 revealed by Net::Google::DataAPI (DANJOU).
153 value = sv_mortalcopy(value);
161 call_sv_safe(trigger, G_VOID | G_DISCARD);
162 /* need not SPAGAIN */
164 assert(SvTYPE(value) != SVTYPEMASK);
167 mouse_push_value(aTHX_ value, flags);
170 XS(XS_Mouse_accessor)
174 MAGIC* const mg = (MAGIC*)XSANY.any_ptr;
176 SP -= items; /* PPCODE */
179 if(items == 1){ /* reader */
180 mouse_attr_get(aTHX_ self, mg);
182 else if (items == 2){ /* writer */
183 mouse_attr_set(aTHX_ self, mg, ST(1));
186 mouse_throw_error(MOUSE_mg_attribute(mg), NULL,
187 "Expected exactly one or two argument for an accessor of %"SVf,
197 MAGIC* const mg = (MAGIC*)XSANY.any_ptr;
200 mouse_throw_error(MOUSE_mg_attribute(mg), NULL,
201 "Cannot assign a value to a read-only accessor of %"SVf,
205 SP -= items; /* PPCODE */
208 mouse_attr_get(aTHX_ self, mg);
215 MAGIC* const mg = (MAGIC*)XSANY.any_ptr;
218 mouse_throw_error(MOUSE_mg_attribute(mg), NULL,
219 "Too few arguments for a write-only accessor of %"SVf,
223 SP -= items; /* PPCODE */
226 mouse_attr_set(aTHX_ self, mg, ST(1));
229 /* simple accessors */
233 mouse_accessor_get_mg(pTHX_ CV* const xsub){
234 return moose_mg_find(aTHX_ (SV*)xsub, &mouse_simple_accessor_vtbl, MOOSEf_DIE_ON_FAIL);
239 mouse_simple_accessor_generate(pTHX_
240 const char* const fq_name, const char* const key, I32 const keylen,
241 XSUBADDR_t const accessor_impl, void* const dptr, I32 const dlen) {
242 CV* const xsub = newXS((char*)fq_name, accessor_impl, __FILE__);
243 SV* const slot = newSVpvn_share(key, keylen, 0U);
247 /* anonymous xsubs need sv_2mortal() */
248 sv_2mortal((SV*)xsub);
251 mg = sv_magicext((SV*)xsub, slot,
252 PERL_MAGIC_ext, &mouse_accessor_vtbl, (char*)dptr, dlen);
254 SvREFCNT_dec(slot); /* sv_magicext() increases refcnt in mg_obj */
255 if(dlen == HEf_SVKEY){
260 * although we use MAGIC for gc, we also store mg to CvXSUBANY
261 * for efficiency (gfx)
263 CvXSUBANY(xsub).any_ptr = (void*)mg;
268 XS(XS_Mouse_simple_reader)
272 MAGIC* const mg = (MAGIC*)XSANY.any_ptr;
276 croak("Expected exactly one argument for a reader of %"SVf,
280 value = get_slot(self, MOUSE_mg_slot(mg));
282 if(MOUSE_mg_ptr(mg)){
283 /* the default value must be a SV */
284 assert(MOUSE_mg_len(mg) == HEf_SVKEY);
285 value = (SV*)MOUSE_mg_ptr(mg);
288 value = &PL_sv_undef;
297 XS(XS_Mouse_simple_writer)
301 SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr);
304 croak("Expected exactly two argument for a writer of %"SVf,
308 ST(0) = set_slot(self, slot, ST(1));
312 XS(XS_Mouse_simple_clearer)
316 SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr);
320 croak("Expected exactly one argument for a clearer of %"SVf,
324 value = delete_slot(self, slot);
325 ST(0) = value ? value : &PL_sv_undef;
329 XS(XS_Mouse_simple_predicate)
333 SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr);
336 croak("Expected exactly one argument for a predicate of %"SVf, slot);
339 ST(0) = boolSV( has_slot(self, slot) );
343 /* Class::Data::Inheritable-like class accessor */
344 XS(XS_Mouse_inheritable_class_accessor) {
347 SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr);
351 if(items == 1){ /* reader */
354 else if (items == 2){ /* writer */
358 croak("Expected exactly one or two argument for a class data accessor"
360 value = NULL; /* -Wuninitialized */
363 stash = mouse_get_namespace(aTHX_ self);
365 if(!value) { /* reader */
366 value = get_slot(self, slot);
368 AV* const isa = mro_get_linear_isa(stash);
369 I32 const len = av_len(isa) + 1;
371 for(i = 1; i < len; i++) {
372 SV* const klass = MOUSE_av_at(isa, i);
373 SV* const meta = get_metaclass(klass);
375 continue; /* skip non-Mouse classes */
377 value = get_slot(meta, slot);
383 value = &PL_sv_undef;
388 set_slot(self, slot, value);
389 mro_method_changed_in(stash);
396 /* simple instance slot accessor (or Mouse::Meta::Instance) */
399 mouse_instance_create(pTHX_ HV* const stash) {
402 assert(SvTYPE(stash) == SVt_PVHV);
403 instance = sv_bless( newRV_noinc((SV*)newHV()), stash );
404 return sv_2mortal(instance);
408 mouse_instance_clone(pTHX_ SV* const instance) {
410 CHECK_INSTANCE(instance);
411 assert(SvOBJECT(SvRV(instance)));
413 proto = newRV_noinc((SV*)newHVhv((HV*)SvRV(instance)));
414 sv_bless(proto, SvSTASH(SvRV(instance)));
415 return sv_2mortal(proto);
419 mouse_instance_has_slot(pTHX_ SV* const instance, SV* const slot) {
421 CHECK_INSTANCE(instance);
422 return hv_exists_ent((HV*)SvRV(instance), slot, 0U);
426 mouse_instance_get_slot(pTHX_ SV* const instance, SV* const slot) {
429 CHECK_INSTANCE(instance);
430 he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U);
431 return he ? HeVAL(he) : NULL;
435 mouse_instance_set_slot(pTHX_ SV* const instance, SV* const slot, SV* const value) {
440 CHECK_INSTANCE(instance);
441 he = hv_fetch_ent((HV*)SvRV(instance), slot, TRUE, 0U);
449 mouse_instance_delete_slot(pTHX_ SV* const instance, SV* const slot) {
452 CHECK_INSTANCE(instance);
453 return hv_delete_ent((HV*)SvRV(instance), slot, 0, 0U);
457 mouse_instance_weaken_slot(pTHX_ SV* const instance, SV* const slot) {
460 CHECK_INSTANCE(instance);
461 he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U);
463 sv_rvweaken(HeVAL(he));
467 MODULE = Mouse::Meta::Method::Accessor::XS PACKAGE = Mouse::Meta::Method::Accessor::XS
470 VERSIONCHECK: DISABLE
473 _generate_accessor(klass, SV* attr, metaclass)
476 RETVAL = mouse_accessor_generate(aTHX_ attr, XS_Mouse_accessor);
482 _generate_reader(klass, SV* attr, metaclass)
485 RETVAL = mouse_accessor_generate(aTHX_ attr, XS_Mouse_reader);
491 _generate_writer(klass, SV* attr, metaclass)
494 RETVAL = mouse_accessor_generate(aTHX_ attr, XS_Mouse_writer);
500 _generate_clearer(klass, SV* attr, metaclass)
503 SV* const slot = mcall0(attr, mouse_name);
505 const char* const pv = SvPV_const(slot, len);
506 RETVAL = mouse_simple_accessor_generate(aTHX_ NULL, pv, len, XS_Mouse_simple_clearer, NULL, 0);
512 _generate_predicate(klass, SV* attr, metaclass)
515 SV* const slot = mcall0(attr, mouse_name);
517 const char* const pv = SvPV_const(slot, len);
518 RETVAL = mouse_simple_accessor_generate(aTHX_ NULL, pv, len, XS_Mouse_simple_predicate, NULL, 0);