3 #define MY_CXT_KEY "Mouse::Util::_guts" XS_VERSION
9 #define ISA_CACHE "::LINEALIZED_ISA_CACHE::"
11 #ifdef no_mro_get_linear_isa
13 mouse_mro_get_linear_isa(pTHX_ HV* const stash){
14 GV* const cachegv = *(GV**)hv_fetchs(stash, ISA_CACHE, TRUE);
20 gv_init(cachegv, stash, ISA_CACHE, sizeof(ISA_CACHE)-1, TRUE);
26 if(SvIOK(gen) && SvIVX(gen) == (IV)mro_get_pkg_gen(stash)){
27 return isa; /* returns the cache if available */
31 GvAV(cachegv) = isa = newAV();
34 get_linear_isa = get_cv("Mouse::Util::get_linear_isa", TRUE);
44 mXPUSHp(HvNAME_get(stash), HvNAMELEN_get(stash));
47 call_sv((SV*)get_linear_isa, G_SCALAR);
53 if(IsArrayRef(avref)){
54 AV* const av = (AV*)SvRV(avref);
55 I32 const len = AvFILLp(av) + 1;
58 for(i = 0; i < len; i++){
59 HV* const stash = gv_stashsv(AvARRAY(av)[i], FALSE);
61 av_push(isa, newSVpv(HvNAME(stash), 0));
66 Perl_croak(aTHX_ "Mouse:Util::get_linear_isa() didn't return an ARRAY reference");
73 sv_setiv(gen, (IV)mro_get_pkg_gen(stash));
76 #endif /* !no_mor_get_linear_isa */
80 mouse_av_at_safe(pTHX_ AV* const av, I32 const ix){
82 assert(SvTYPE(av) == SVt_PVAV);
83 assert(AvMAX(av) >= ix);
84 return &AvARRAY(av)[ix];
89 mouse_throw_error(SV* const metaobject, SV* const data /* not used */, const char* const fmt, ...){
98 message = vnewSVpvf(fmt, &args);
109 if(data){ /* extra arg, might be useful for debugging */
110 mPUSHs(newSVpvs("data"));
112 mPUSHs(newSVpvs("depth"));
118 call_method("throw_error", G_VOID);
119 croak("throw_error() did not throw the error (%"SVf")", message);
124 S_dopoptosub(pTHX_ I32 const startingblock)
126 const PERL_CONTEXT* const cxstk = cxstack;
128 for (i = startingblock; i >= 0; i--) {
129 const PERL_CONTEXT* const cx = &cxstk[i];
131 switch (CxTYPE(cx)) {
141 /* workaround RT #69939 */
143 mouse_call_sv_safe(pTHX_ SV* const sv, I32 const flags) {
144 const PERL_CONTEXT* const cx = &cxstack[S_dopoptosub(aTHX_ cxstack_ix)];
145 assert( (flags & G_EVAL) == 0 );
147 //warn("cx_type=0x%02x PL_eval=0x%02x (%"SVf")", (unsigned)cx->cx_type, (unsigned)PL_in_eval, sv);
148 if(!(cx->cx_type & CXp_TRYBLOCK)) {
151 //ERRSV = sv_newmortal();
153 count = Perl_call_sv(aTHX_ sv, flags | G_EVAL);
156 croak(NULL); /* rethrow */
161 return Perl_call_sv(aTHX_ sv, flags);
166 mouse_must_defined(pTHX_ SV* const value, const char* const name) {
172 croak("You must define %s", name);
177 mouse_must_ref(pTHX_ SV* const value, const char* const name, svtype const t) {
182 if(!(SvROK(value) && (t == SVt_NULL || SvTYPE(SvRV(value)) == t))) {
183 croak("You must pass %s, not %s",
184 name, SvOK(value) ? SvPV_nolen(value) : "undef");
190 mouse_is_class_loaded(pTHX_ SV * const klass){
195 if (!(SvPOKp(klass) && SvCUR(klass))) { /* XXX: SvPOK does not work with magical scalars */
199 stash = gv_stashsv(klass, FALSE);
204 if (( gvp = (GV**)hv_fetchs(stash, "VERSION", FALSE) )) {
205 if(isGV(*gvp) && GvSV(*gvp) && SvOK(GvSV(*gvp))){
210 if (( gvp = (GV**)hv_fetchs(stash, "ISA", FALSE) )) {
211 if(isGV(*gvp) && GvAV(*gvp) && av_len(GvAV(*gvp)) != -1){
217 while(( he = hv_iternext(stash) )){
218 GV* const gv = (GV*)HeVAL(he);
221 if(GvCVu(gv)){ /* is GV and has CV */
222 hv_iterinit(stash); /* reset */
226 else if(SvOK(gv)){ /* is a stub or constant */
227 hv_iterinit(stash); /* reset */
236 mouse_call0 (pTHX_ SV* const self, SV* const method) {
244 call_sv_safe(method, G_SCALAR | G_METHOD);
254 mouse_call1 (pTHX_ SV* const self, SV* const method, SV* const arg1) {
264 call_sv_safe(method, G_SCALAR | G_METHOD);
274 mouse_predicate_call(pTHX_ SV* const self, SV* const method) {
275 return sv_true( mcall0(self, method) );
279 mouse_get_metaclass(pTHX_ SV* metaclass_name){
283 assert(metaclass_name);
284 assert(MY_CXT.metas);
286 if(IsObject(metaclass_name)){
287 HV* const stash = SvSTASH(SvRV(metaclass_name));
289 metaclass_name = newSVpvn_share(HvNAME_get(stash), HvNAMELEN_get(stash), 0U);
290 sv_2mortal(metaclass_name);
293 he = hv_fetch_ent(MY_CXT.metas, metaclass_name, FALSE, 0U);
295 return he ? HeVAL(he) : &PL_sv_undef;
299 mouse_mg_find(pTHX_ SV* const sv, const MGVTBL* const vtbl, I32 const flags){
303 for(mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic){
304 if(mg->mg_virtual == vtbl){
309 if(flags & MOUSEf_DIE_ON_FAIL){
310 croak("mouse_mg_find: no MAGIC found for %"SVf, sv_2mortal(newRV_inc(sv)));
316 mouse_stash_fetch(pTHX_ HV* const stash, const char* const name, I32 const namelen, I32 const create) {
317 GV** const gvp = (GV**)hv_fetch(stash, name, namelen, create);
321 gv_init(*gvp, stash, name, namelen, GV_ADDMULTI);
331 mouse_install_sub(pTHX_ GV* const gv, SV* const code_ref) {
335 assert(code_ref != NULL);
337 assert(IsCodeRef(code_ref));
339 if(GvCVu(gv)){ /* delete *slot{gv} to work around "redefine" warning */
340 SvREFCNT_dec(GvCV(gv));
344 sv_setsv_mg((SV*)gv, code_ref); /* *gv = $code_ref */
346 /* name the CODE ref if it's anonymous */
347 cv = (CV*)SvRV(code_ref);
349 && CvGV(cv) /* a cv under construction has no gv */ ){
352 /* update %DB::sub to make NYTProf happy */
353 if((PL_perldb & (PERLDBf_SUBLINE|PERLDB_NAMEANON))
354 && PL_DBsub && (dbsub = GvHV(PL_DBsub))
356 /* see Perl_newATTRSUB() in op.c */
357 SV* const subname = sv_newmortal();
360 gv_efullname3(subname, CvGV(cv), NULL);
361 orig = hv_fetch_ent(dbsub, subname, FALSE, 0U);
363 gv_efullname3(subname, gv, NULL);
364 (void)hv_store_ent(dbsub, subname, HeVAL(orig), 0U);
365 SvREFCNT_inc_simple_void_NN(HeVAL(orig));
374 MODULE = Mouse::Util PACKAGE = Mouse::Util
377 VERSIONCHECK: DISABLE
386 __register_metaclass_storage(HV* metas, bool cloning)
395 if(MY_CXT.metas && ckWARN(WARN_REDEFINE)){
396 Perl_warner(aTHX_ packWARN(WARN_REDEFINE), "Metaclass storage more than once");
398 MY_CXT.metas = metas;
399 SvREFCNT_inc_simple_void_NN(metas);
404 is_valid_class_name(SV* sv)
408 if(SvPOKp(sv) && SvCUR(sv) > 0){
411 for(i = 0; i < SvCUR(sv); i++){
412 char const c = SvPVX(sv)[i];
413 if(!(isALNUM(c) || c == ':')){
420 RETVAL = SvNIOKp(sv) ? TRUE : FALSE;
427 is_class_loaded(SV* sv)
430 get_code_info(CV* code)
435 if((gv = CvGV(code)) && isGV(gv) && (stash = GvSTASH(gv))){
437 mPUSHs(newSVpvn_share(HvNAME_get(stash), HvNAMELEN_get(stash), 0U));
438 mPUSHs(newSVpvn_share(GvNAME_get(gv), GvNAMELEN_get(gv), 0U));
442 get_code_package(CV* code)
446 if(CvGV(code) && isGV(CvGV(code)) && (stash = GvSTASH(CvGV(code)))){
447 RETVAL = newSVpvn_share(HvNAME_get(stash), HvNAMELEN_get(stash), 0U);
456 get_code_ref(SV* package, SV* name)
464 must_defined(package, "a package name");
465 must_defined(name, "a subroutine name");
467 stash = gv_stashsv(package, FALSE);
472 name_pv = SvPV_const(name, name_len);
473 gv = stash_fetch(stash, name_pv, name_len, FALSE);
474 RETVAL = gv ? GvCVu(gv) : NULL;
484 generate_isa_predicate_for(SV* arg, SV* predicate_name = NULL)
486 generate_isa_predicate_for = 0
487 generate_can_predicate_for = 1
490 const char* name_pv = NULL;
493 must_defined(arg, ix == 0 ? "a class_name" : "method names");
496 must_defined(predicate_name, "a predicate name");
497 name_pv = SvPV_nolen_const(predicate_name);
501 xsub = mouse_generate_isa_predicate_for(aTHX_ arg, name_pv);
504 xsub = mouse_generate_can_predicate_for(aTHX_ arg, name_pv);
507 if(predicate_name == NULL){ /* anonymous predicate */
508 mXPUSHs( newRV_inc((SV*)xsub) );
512 # This xsub will redefine &Mouse::Util::install_subroutines()
514 install_subroutines(SV* into, ...)
520 must_defined(into, "a package name");
521 stash = gv_stashsv(into, TRUE);
523 if( ((items-1) % 2) != 0 ){
524 croak_xs_usage(cv, "into, name => coderef [, other_name, other_coderef ...]");
527 for(i = 1; i < items; i += 2) {
528 SV* const name = ST(i);
529 SV* const code = ST(i+1);
534 must_defined(name, "a subroutine name");
535 must_ref(code, "a CODE reference", SVt_PVCV);
537 pv = SvPV_const(name, len);
538 gv = stash_fetch(stash, pv, len, TRUE);
540 mouse_install_sub(aTHX_ gv, code);