4 mop_call_xs (pTHX_ XSPROTO(subaddr), CV *cv, SV **mark)
12 #if PERL_BCDVERSION >= 0x5010000
14 mop_check_package_cache_flag (pTHX_ HV *stash)
16 assert(SvTYPE(stash) == SVt_PVHV);
18 /* here we're trying to implement a c version of mro::get_pkg_gen($stash),
19 * however the perl core doesn't make it easy for us. It doesn't provide an
20 * api that just does what we want.
22 * However, we know that the information we want is, inside the core,
23 * available using HvMROMETA(stash)->pkg_gen. Unfortunately, although the
24 * HvMROMETA macro is public, it is implemented using Perl_mro_meta_init,
25 * which is not public and only available inside the core, as the mro
26 * interface as well as the structure returned by mro_meta_init isn't
27 * considered to be stable yet.
29 * Perl_mro_meta_init isn't declared static, so we could just define it
30 * ourselfs if perls headers don't do that for us, except that won't work
31 * on platforms where symbols need to be explicitly exported when linking
34 * So our, hopefully temporary, solution is to be even more evil and
35 * basically reimplement HvMROMETA in a very fragile way that'll blow up
36 * when the relevant parts of the mro implementation in core change.
42 return HvAUX(stash)->xhv_mro_meta
43 ? HvAUX(stash)->xhv_mro_meta->pkg_gen
47 #else /* pre 5.10.0 */
50 mop_check_package_cache_flag (pTHX_ HV *stash)
52 PERL_UNUSED_ARG(stash);
53 assert(SvTYPE(stash) == SVt_PVHV);
55 return PL_sub_generation;
60 mop_call0 (pTHX_ SV *const self, SV *const method)
69 call_sv(method, G_SCALAR | G_METHOD);
79 mop_call1 (pTHX_ SV *const self, SV *const method, SV* const arg1)
90 call_sv(method, G_SCALAR | G_METHOD);
101 mop_get_code_info (SV *coderef, char **pkg, char **name)
103 if (!SvOK(coderef) || !SvROK(coderef) || SvTYPE(SvRV(coderef)) != SVt_PVCV) {
107 coderef = SvRV(coderef);
109 /* sub is still being compiled */
110 if (!CvGV(coderef)) {
114 /* I think this only gets triggered with a mangled coderef, but if
115 we hit it without the guard, we segfault. The slightly odd return
116 value strikes me as an improvement (mst)
119 if ( isGV_with_GP(CvGV(coderef)) ) {
120 GV *gv = CvGV(coderef);
121 *pkg = HvNAME( GvSTASH(gv) ? GvSTASH(gv) : CvSTASH(coderef) );
122 *name = GvNAME( CvGV(coderef) );
124 *pkg = "__UNKNOWN__";
132 mop_get_package_symbols (HV *stash, type_filter_t filter, get_package_symbols_cb_t cb, void *ud)
137 (void)hv_iterinit(stash);
139 if (filter == TYPE_FILTER_NONE) {
140 while ( (he = hv_iternext(stash)) ) {
142 const char *key = HePV(he, keylen);
143 if (!cb(key, keylen, HeVAL(he), ud)) {
150 while ( (he = hv_iternext(stash)) ) {
151 SV *const gv = HeVAL(he);
157 switch( SvTYPE(gv) ) {
163 /* expand the gv into a real typeglob if it
164 * contains stub functions and we were asked to
165 * return CODE symbols */
166 if (filter == TYPE_FILTER_CODE) {
169 /* we don't really care about the length,
170 but that's the API */
171 key = HePV(he, keylen);
172 package = HvNAME(stash);
173 fq = sv_2mortal(newSVpvf("%s::%s", package, key));
174 sv = (SV *)get_cv(SvPV_nolen(fq), 0);
178 key = HePV(he, keylen);
179 gv_init((GV *)gv, stash, key, keylen, GV_ADDMULTI);
184 case TYPE_FILTER_CODE: sv = (SV *)GvCVu(gv); break;
185 case TYPE_FILTER_ARRAY: sv = (SV *)GvAV(gv); break;
186 case TYPE_FILTER_IO: sv = (SV *)GvIO(gv); break;
187 case TYPE_FILTER_HASH: sv = (SV *)GvHV(gv); break;
188 case TYPE_FILTER_SCALAR: sv = (SV *)GvSV(gv); break;
190 croak("Unknown type");
198 const char *key = HePV(he, keylen);
199 if (!cb(key, keylen, sv, ud)) {
207 collect_all_symbols (const char *key, STRLEN keylen, SV *val, void *ud)
212 if (!hv_store (hash, key, keylen, newRV_inc(val), 0)) {
213 croak("failed to store symbol ref");
220 mop_get_all_package_symbols (HV *stash, type_filter_t filter)
224 mop_get_package_symbols (stash, filter, collect_all_symbols, ret);
230 mop_mg_find(pTHX_ SV* const sv, const MGVTBL* const vtbl, I32 const flags){
234 for(mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic){
235 if(mg->mg_virtual == vtbl){
240 if(flags & MOPf_DIE_ON_FAIL){
241 croak("mop_mg_find: no MAGIC found for %"SVf, sv_2mortal(newRV_inc(sv)));