1 #define NEED_newSVpvn_flags_GLOBAL
8 SV* mouse_get_attribute;
9 SV* mouse_get_attribute_list;
11 #define MOUSE_xc_flags(a) SvUVX(MOUSE_av_at((a), MOUSE_XC_FLAGS))
12 #define MOUSE_xc_gen(a) MOUSE_av_at((a), MOUSE_XC_GEN)
13 #define MOUSE_xc_stash(a) ( (HV*)MOUSE_av_at((a), MOUSE_XC_STASH) )
14 #define MOUSE_xc_attrall(a) ( (AV*)MOUSE_av_at((a), MOUSE_XC_ATTRALL) )
15 #define MOUSE_xc_buildall(a) ( (AV*)MOUSE_av_at((a), MOUSE_XC_BUILDALL) )
16 #define MOUSE_xc_demolishall(a) ( (AV*)MOUSE_av_at((a), MOUSE_XC_DEMOLISHALL) )
18 enum mouse_xc_flags_t {
19 MOUSEf_XC_IS_IMMUTABLE = 0x0001,
20 MOUSEf_XC_IS_ANON = 0x0002,
21 MOUSEf_XC_HAS_BUILDARGS = 0x0004,
23 MOUSEf_XC_mask = 0xFFFF /* not used */
26 /* Mouse XS Metaclass object */
30 MOUSE_XC_GEN, /* class generation */
31 MOUSE_XC_STASH, /* symbol table hash */
33 MOUSE_XC_ATTRALL, /* all the attributes */
34 MOUSE_XC_BUILDALL, /* all the BUILD methods */
35 MOUSE_XC_DEMOLISHALL, /* all the DEMOLISH methods */
40 static MGVTBL mouse_xc_vtbl; /* for identity */
43 mouse_class_push_attribute_list(pTHX_ SV* const metaclass, AV* const attrall, HV* const seen){
47 /* $meta->get_attribute_list */
52 n = call_sv(mouse_get_attribute_list, G_ARRAY | G_METHOD);
53 for(NOOP; n > 0; n--){
60 if(hv_exists_ent(seen, name, 0U)){
63 (void)hv_store_ent(seen, name, &PL_sv_undef, 0U);
65 av_push(attrall, newSVsv( mcall1(metaclass, mouse_get_attribute, name) ));
70 mouse_class_has_custom_buildargs(pTHX_ HV* const stash) {
71 XS(XS_Mouse__Object_BUILDARGS); /* prototype */
73 GV* const buildargs = gv_fetchmeth_autoload(stash, "BUILDARGS", sizeof("BUILDARGS")-1, 0);
75 return buildargs && CvXSUB(GvCV(buildargs)) != XS_Mouse__Object_BUILDARGS;
79 mouse_class_update_xc(pTHX_ SV* const metaclass PERL_UNUSED_DECL, HV* const stash, AV* const xc) {
80 AV* const linearized_isa = mro_get_linear_isa(stash);
81 I32 const len = AvFILLp(linearized_isa);
84 AV* const attrall = newAV();
85 AV* const buildall = newAV();
86 AV* const demolishall = newAV();
87 HV* const seen = newHV(); /* for attributes */
92 sv_2mortal((SV*)seen);
94 /* old data will be delete at the end of the perl scope */
95 av_delete(xc, MOUSE_XC_DEMOLISHALL, 0x00);
96 av_delete(xc, MOUSE_XC_BUILDALL, 0x00);
97 av_delete(xc, MOUSE_XC_ATTRALL, 0x00);
99 SvREFCNT_inc_simple_void_NN(linearized_isa);
100 sv_2mortal((SV*)linearized_isa);
104 if(predicate_calls(metaclass, "is_immutable")){
105 flags |= MOUSEf_XC_IS_IMMUTABLE;
108 if(predicate_calls(metaclass, "is_anon_class")){
109 flags |= MOUSEf_XC_IS_ANON;
112 if(mouse_class_has_custom_buildargs(aTHX_ stash)){
113 flags |= MOUSEf_XC_HAS_BUILDARGS;
116 av_store(xc, MOUSE_XC_FLAGS, newSVuv(flags));
117 av_store(xc, MOUSE_XC_ATTRALL, (SV*)attrall);
118 av_store(xc, MOUSE_XC_BUILDALL, (SV*)buildall);
119 av_store(xc, MOUSE_XC_DEMOLISHALL, (SV*)demolishall);
121 for(i = 0; i < len; i++){
122 SV* const klass = MOUSE_av_at(linearized_isa, i);
123 HV* const st = gv_stashsv(klass, TRUE);
127 gv = stash_fetchs(st, "BUILD", FALSE);
129 av_unshift(buildall, 1);
130 av_store(buildall, 0, newRV_inc((SV*)GvCV(gv)));
133 gv = stash_fetchs(st, "DEMOLISH", FALSE);
135 av_push(demolishall, newRV_inc((SV*)GvCV(gv)));
139 meta = get_metaclass(klass);
141 continue; /* skip non-Mouse classes */
144 mouse_class_push_attribute_list(aTHX_ meta, attrall, seen);
150 sv_setuv(MOUSE_xc_gen(xc), mro_get_pkg_gen(stash));
154 mouse_get_xc(pTHX_ SV* const metaclass) {
160 if(!IsObject(metaclass)){
161 croak("Not a Mouse metaclass");
164 mg = mouse_mg_find(aTHX_ SvRV(metaclass), &mouse_xc_vtbl, 0x00);
166 SV* const package = get_slot(metaclass, mouse_package);
168 const char* const pv = SvPV_const(package, len);
170 stash = gv_stashpvn(pv, len, TRUE);
173 mg = sv_magicext(SvRV(metaclass), (SV*)xc, PERL_MAGIC_ext, &mouse_xc_vtbl, pv, len);
174 SvREFCNT_dec(xc); /* refcnt++ in sv_magicext */
176 av_extend(xc, MOUSE_XC_last - 1);
178 av_store(xc, MOUSE_XC_GEN, newSViv(0));
179 av_store(xc, MOUSE_XC_STASH, (SV*)stash);
181 SvREFCNT_inc_simple_void_NN(stash);
184 xc = (AV*)MOUSE_mg_obj(mg);
187 assert(SvTYPE(xc) == SVt_PVAV);
190 gen = MOUSE_xc_gen(xc);
191 stash = MOUSE_xc_stash(xc);
193 if(SvUV(gen) != mro_get_pkg_gen(stash)){
194 mouse_class_update_xc(aTHX_ metaclass, stash, xc);
201 mouse_buildargs(pTHX_ SV* metaclass, SV* const klass, I32 ax, I32 items) {
209 SV* const args_ref = ST(0);
210 if(!IsHashRef(args_ref)){
211 if(!metaclass){ metaclass = get_metaclass(klass); }
212 mouse_throw_error(metaclass, NULL, "Single parameters to new() must be a HASH ref");
214 args = newHVhv((HV*)SvRV(args_ref));
215 sv_2mortal((SV*)args);
220 args = newHV_mortal();
222 if( (items % 2) != 0 ){
223 if(!metaclass){ metaclass = get_metaclass(klass); }
224 mouse_throw_error(metaclass, NULL, "Odd number of parameters to new()");
227 for(i = 0; i < items; i += 2){
228 (void)hv_store_ent(args, ST(i), newSVsv(ST(i+1)), 0U);
236 mouse_class_initialize_object(pTHX_ SV* const meta, SV* const object, HV* const args, bool const ignore_triggers) {
237 AV* const xc = mouse_get_xc(aTHX_ meta);
238 AV* const attrs = MOUSE_xc_attrall(xc);
239 I32 len = AvFILLp(attrs) + 1;
241 AV* triggers_queue = NULL;
243 assert(meta || object);
245 assert(SvTYPE(args) == SVt_PVHV);
250 if(!ignore_triggers){
251 triggers_queue = newAV_mortal();
254 for(i = 0; i < len; i++){
255 SV* const attr = AvARRAY(attrs)[i];
256 AV* const xa = mouse_get_xa(aTHX_ AvARRAY(attrs)[i]);
258 SV* const slot = MOUSE_xa_slot(xa);
259 U16 const flags = (U16)MOUSE_xa_flags(xa);
260 SV* const init_arg = MOUSE_xa_init_arg(xa);
263 if(SvOK(init_arg) && ( he = hv_fetch_ent(args, init_arg, FALSE, 0U) ) ){
264 SV* value = HeVAL(he);
265 if(flags & MOUSEf_ATTR_HAS_TC){
266 value = mouse_xa_apply_type_constraint(aTHX_ xa, value, flags);
268 set_slot(object, slot, value);
269 if(SvROK(value) && flags & MOUSEf_ATTR_IS_WEAK_REF){
270 weaken_slot(object, slot);
272 if(flags & MOUSEf_ATTR_HAS_TRIGGER && triggers_queue){
273 AV* const pair = newAV();
274 av_push(pair, newSVsv( mcall0s(attr, "trigger") ));
275 av_push(pair, newSVsv(value));
277 av_push(triggers_queue, (SV*)pair);
280 else { /* no init arg */
281 if(flags & (MOUSEf_ATTR_HAS_DEFAULT | MOUSEf_ATTR_HAS_BUILDER)){
282 if(!(flags & MOUSEf_ATTR_IS_LAZY)){
283 mouse_xa_set_default(aTHX_ xa, object);
286 else if(flags & MOUSEf_ATTR_IS_REQUIRED) {
287 mouse_throw_error(attr, NULL, "Attribute (%"SVf") is required", slot);
290 } /* for each attributes */
293 len = AvFILLp(triggers_queue) + 1;
294 for(i = 0; i < len; i++){
295 AV* const pair = (AV*)AvARRAY(triggers_queue)[i];
296 SV* const trigger = AvARRAY(pair)[0];
297 SV* const value = AvARRAY(pair)[1];
299 mcall1(object, trigger, value);
303 if(MOUSE_xc_flags(xc) & MOUSEf_XC_IS_ANON){
304 set_slot(object, newSVpvs_flags("__ANON__", SVs_TEMP), meta);
311 MODULE = Mouse PACKAGE = Mouse
316 mouse_package = newSVpvs_share("package");
317 mouse_namespace = newSVpvs_share("namespace");
318 mouse_methods = newSVpvs_share("methods");
319 mouse_name = newSVpvs_share("name");
321 mouse_get_attribute = newSVpvs_share("get_attribute");
322 mouse_get_attribute_list = newSVpvs_share("get_attribute_list");
324 MOUSE_CALL_BOOT(Mouse__Util);
325 MOUSE_CALL_BOOT(Mouse__Util__TypeConstraints);
326 MOUSE_CALL_BOOT(Mouse__Meta__Method__Accessor__XS);
327 MOUSE_CALL_BOOT(Mouse__Meta__Attribute);
330 MODULE = Mouse PACKAGE = Mouse::Meta::Module
333 INSTALL_SIMPLE_READER_WITH_KEY(Module, name, package);
334 INSTALL_SIMPLE_READER_WITH_KEY(Module, _method_map, methods);
335 INSTALL_SIMPLE_READER_WITH_KEY(Module, _attribute_map, attributes);
341 SV* const package = get_slot(self, mouse_package);
342 if(!(package && SvOK(package))){
343 croak("No package name defined");
345 RETVAL = gv_stashsv(package, GV_ADDMULTI);
350 # ignore extra arguments for extensibility
352 add_method(SV* self, SV* name, SV* code, ...)
355 SV* const package = get_slot(self, mouse_package); /* $self->{package} */
356 SV* const methods = get_slot(self, mouse_methods); /* $self->{methods} */
360 if(!(package && SvOK(package))){
361 croak("No package name defined");
368 mouse_throw_error(self, NULL, "You must define a method name");
371 mouse_throw_error(self, NULL, "You must define a CODE reference");
375 if(SvTYPE(SvRV(code_ref)) != SVt_PVCV){
376 SV* sv = code_ref; /* used in tryAMAGICunDEREF */
377 SV** sp = &sv; /* used in tryAMAGICunDEREF */
378 tryAMAGICunDEREF(to_cv); /* try \&{$code} */
379 if(SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV){
380 mouse_throw_error(self, NULL, "Not a CODE reference");
385 /* *{$package . '::' . $name} -> *gv */
386 gv = gv_fetchpv(form("%"SVf"::%"SVf, package, name), GV_ADDMULTI, SVt_PVCV);
387 if(GvCVu(gv)){ /* delete *slot{gv} to work around "redefine" warning */
388 SvREFCNT_dec(GvCV(gv));
391 sv_setsv_mg((SV*)gv, code_ref); /* *gv = $code_ref */
393 set_slot(methods, name, code); /* $self->{methods}{$name} = $code */
395 /* TODO: name the CODE ref if it's anonymous */
396 //code_entity = (CV*)SvRV(code_ref);
397 //if(CvANON(code_entity)
398 // && CvGV(code_entity) /* a cv under construction has no gv */ ){
400 // CvGV(code_entity) = gv;
401 // CvANON_off(code_entity);
405 MODULE = Mouse PACKAGE = Mouse::Meta::Class
408 INSTALL_SIMPLE_READER(Class, roles);
409 INSTALL_SIMPLE_PREDICATE_WITH_KEY(Class, is_anon_class, anon_serial_id);
410 newCONSTSUB(gv_stashpvs("Mouse::Meta::Class", TRUE), "constructor_class",
411 newSVpvs("Mouse::Meta::Method::Constructor::XS"));
414 linearized_isa(SV* self)
417 SV* const stash_ref = mcall0(self, mouse_namespace); /* $self->namespace */
421 if(!(SvROK(stash_ref) && SvTYPE(SvRV(stash_ref)) == SVt_PVHV)){
422 croak("namespace() didn't return a HASH reference");
424 linearized_isa = mro_get_linear_isa((HV*)SvRV(stash_ref));
425 len = AvFILLp(linearized_isa) + 1;
427 for(i = 0; i < len; i++){
428 PUSHs(AvARRAY(linearized_isa)[i]);
433 get_all_attributes(SV* self)
436 AV* const xc = mouse_get_xc(aTHX_ self);
437 AV* const all_attrs = MOUSE_xc_attrall(xc);
438 I32 const len = AvFILLp(all_attrs) + 1;
442 for(i = 0; i < len; i++){
443 PUSHs( MOUSE_av_at(all_attrs, i) );
448 new_object_(SV* meta, ...)
451 AV* const xc = mouse_get_xc(aTHX_ meta);
452 HV* const args = mouse_buildargs(aTHX_ meta, NULL, ax, items);
454 RETVAL = mouse_instance_create(aTHX_ MOUSE_xc_stash(xc));
455 mouse_class_initialize_object(aTHX_ meta, RETVAL, args, FALSE);
460 _initialize_object(SV* meta, SV* object, HV* args, bool ignore_triggers = FALSE)
463 mouse_class_initialize_object(aTHX_ meta, object, args, ignore_triggers);
470 AV* const xc = mouse_get_xc(aTHX_ meta);
471 mXPUSHu(MOUSE_xc_flags(xc));
472 mXPUSHs(newRV_inc((SV*)MOUSE_xc_buildall(xc)));
473 mXPUSHs(newRV_inc((SV*)MOUSE_xc_demolishall(xc)));
476 MODULE = Mouse PACKAGE = Mouse::Meta::Role
479 INSTALL_SIMPLE_READER_WITH_KEY(Role, get_roles, roles);
480 INSTALL_SIMPLE_PREDICATE_WITH_KEY(Role, is_anon_role, anon_serial_id);
482 MODULE = Mouse PACKAGE = Mouse::Object
488 SV* const meta = get_metaclass(klass);
489 AV* const xc = mouse_get_xc(aTHX_ meta);
490 UV const flags = MOUSE_xc_flags(xc);
496 if(flags & MOUSEf_XC_HAS_BUILDARGS){
501 for(i = 0; i < items; i++){
506 call_method("BUILDARGS", G_SCALAR);
511 if(!IsHashRef(args)){
512 croak("BUILDARGS did not return a HASH reference");
516 args = newRV_inc((SV*)mouse_buildargs(aTHX_ meta, klass, ax, items));
521 RETVAL = mouse_instance_create(aTHX_ MOUSE_xc_stash(xc));
522 mouse_class_initialize_object(aTHX_ meta, RETVAL, (HV*)SvRV(args), FALSE);
525 av = MOUSE_xc_buildall(xc);
526 len = AvFILLp(av) + 1;
527 for(i = 0; i < len; i++){
536 call_sv(AvARRAY(av)[i], G_VOID | G_DISCARD);
543 BUILDARGS(SV* klass, ...)
546 RETVAL = mouse_buildargs(aTHX_ NULL, klass, ax, items);
551 MODULE = Mouse PACKAGE = Mouse::Meta::Method::Constructor::XS
554 _generate_constructor(...)
557 RETVAL = get_cvs("Mouse::Object::new", TRUE);
558 SvREFCNT_inc_simple_void_NN(RETVAL);