4 mop_call_xs (pTHX_ XSPROTO(subaddr), CV *cv, SV **mark)
12 #if PERL_VERSION >= 10
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_get_code_info (SV *coderef, char **pkg, char **name)
81 if (!SvOK(coderef) || !SvROK(coderef) || SvTYPE(SvRV(coderef)) != SVt_PVCV) {
85 coderef = SvRV(coderef);
87 /* sub is still being compiled */
92 /* I think this only gets triggered with a mangled coderef, but if
93 we hit it without the guard, we segfault. The slightly odd return
94 value strikes me as an improvement (mst)
97 if ( isGV_with_GP(CvGV(coderef)) ) {
98 GV *gv = CvGV(coderef);
99 *pkg = HvNAME( GvSTASH(gv) ? GvSTASH(gv) : CvSTASH(coderef) );
100 *name = GvNAME( CvGV(coderef) );
102 *pkg = "__UNKNOWN__";
110 mop_get_package_symbols (HV *stash, type_filter_t filter, get_package_symbols_cb_t cb, void *ud)
114 (void)hv_iterinit(stash);
116 if (filter == TYPE_FILTER_NONE) {
117 while ( (he = hv_iternext(stash)) ) {
119 const char *key = HePV(he, keylen);
120 if (!cb(key, keylen, HeVAL(he), ud)) {
127 while ( (he = hv_iternext(stash)) ) {
128 SV *const gv = HeVAL(he);
135 switch( SvTYPE(gv) ) {
141 /* expand the gv into a real typeglob if it
142 * contains stub functions and we were asked to
143 * return CODE symbols */
144 if (filter == TYPE_FILTER_CODE) {
146 /* we don't really care about the length,
147 but that's the API */
148 key = HePV(he, keylen);
149 package = HvNAME(stash);
150 fq = sv_2mortal(newSVpvf("%s::%s", package, key));
151 sv = (SV *)get_cv(SvPV_nolen(fq), 0);
155 key = HePV(he, keylen);
156 gv_init((GV *)gv, stash, key, keylen, GV_ADDMULTI);
161 case TYPE_FILTER_CODE: sv = (SV *)GvCVu(gv); break;
162 case TYPE_FILTER_ARRAY: sv = (SV *)GvAV(gv); break;
163 case TYPE_FILTER_IO: sv = (SV *)GvIO(gv); break;
164 case TYPE_FILTER_HASH: sv = (SV *)GvHV(gv); break;
165 case TYPE_FILTER_SCALAR: sv = (SV *)GvSV(gv); break;
167 croak("Unknown type");
175 const char *key = HePV(he, keylen);
176 if (!cb(key, keylen, sv, ud)) {
184 collect_all_symbols (const char *key, STRLEN keylen, SV *val, void *ud)
188 if (!hv_store (hash, key, keylen, newRV_inc(val), 0)) {
189 croak("failed to store symbol ref");
196 mop_get_all_package_symbols (HV *stash, type_filter_t filter)
199 mop_get_package_symbols (stash, filter, collect_all_symbols, ret);
203 #define DECLARE_KEY(name) { #name, #name, NULL, 0 }
204 #define DECLARE_KEY_WITH_VALUE(name, value) { #name, value, NULL, 0 }
206 /* the order of these has to match with those in mop.h */
212 } prehashed_keys[key_last] = {
214 DECLARE_KEY(package),
215 DECLARE_KEY(package_name),
217 DECLARE_KEY_WITH_VALUE(package_cache_flag, "_package_cache_flag"),
218 DECLARE_KEY(methods),
219 DECLARE_KEY(VERSION),
224 mop_prehashed_key_for (mop_prehashed_key_t key)
226 return prehashed_keys[key].key;
230 mop_prehashed_hash_for (mop_prehashed_key_t key)
232 return prehashed_keys[key].hash;
239 for (i = 0; i < key_last; i++) {
240 const char *value = prehashed_keys[i].value;
241 prehashed_keys[i].key = newSVpv(value, strlen(value));
242 PERL_HASH(prehashed_keys[i].hash, value, strlen(value));
246 XS(mop_xs_simple_reader)
254 mop_prehashed_key_t key = (mop_prehashed_key_t)CvXSUBANY(cv).any_i32;
258 croak("expected exactly one argument");
264 croak("can't call %s as a class method", prehashed_keys[key].name);
267 if (SvTYPE(SvRV(self)) != SVt_PVHV) {
268 croak("object is not a hashref");
271 if ((he = hv_fetch_ent((HV *)SvRV(self), prehashed_keys[key].key, 0, prehashed_keys[key].hash))) {
275 ST(0) = &PL_sv_undef;