#include "perl.h"
#include "XSUB.h"
+#define NEED_newRV_noinc
#define NEED_sv_2pv_flags
#define NEED_sv_2pv_nolen
#include "ppport.h"
-SV *key_name;
-U32 hash_name;
+#define DECLARE_KEY(name) SV *key_##name; U32 hash_##name;
-SV *key_package;
-U32 hash_package;
+#define PREHASH_KEY_WITH_VALUE(name, value) do { \
+ key_##name = newSVpvs(value); \
+ PERL_HASH(hash_##name, value, sizeof(value) - 1); \
+} while (0)
-SV *key_package_name;
-U32 hash_package_name;
+/* this is basically the same as the above macro, except that the value will be
+ * the stringified name. However, we can't just implement this in terms of
+ * PREHASH_KEY_WITH_VALUE as that'd cause macro expansion on the value of
+ * 'name' when it's being passed to the other macro. suggestions on how to make
+ * this more elegant would be much appreciated */
-SV *key_body;
-U32 hash_body;
+#define PREHASH_KEY(name) do { \
+ key_##name = newSVpvs(#name); \
+ PERL_HASH(hash_##name, #name, sizeof(#name) - 1); \
+} while (0)
-SV *key_package_cache_flag;
-U32 hash_package_cache_flag;
+DECLARE_KEY(name);
+DECLARE_KEY(package);
+DECLARE_KEY(package_name);
+DECLARE_KEY(body);
+DECLARE_KEY(package_cache_flag);
+DECLARE_KEY(methods);
+DECLARE_KEY(VERSION);
+DECLARE_KEY(ISA);
-SV *key_methods;
-U32 hash_methods;
-
-SV* method_metaclass;
-SV* associated_metaclass;
-SV* wrap;
+SV *method_metaclass;
+SV *associated_metaclass;
+SV *wrap;
#define check_package_cache_flag(stash) mop_check_package_cache_flag(aTHX_ stash)
-#ifdef HvMROMETA /* 5.10.0 */
-
-#ifndef mro_meta_init
-#define mro_meta_init(stash) Perl_mro_meta_init(aTHX_ stash) /* used in HvMROMETA macro */
-#endif /* !mro_meta_init */
+#if PERL_VERSION >= 10
static UV
mop_check_package_cache_flag(pTHX_ HV* stash) {
assert(SvTYPE(stash) == SVt_PVHV);
- return HvMROMETA(stash)->pkg_gen; /* mro::get_pkg_gen($pkg) */
+ /* here we're trying to implement a c version of mro::get_pkg_gen($stash),
+ * however the perl core doesn't make it easy for us. It doesn't provide an
+ * api that just does what we want.
+ *
+ * However, we know that the information we want is, inside the core,
+ * available using HvMROMETA(stash)->pkg_gen. Unfortunately, although the
+ * HvMROMETA macro is public, it is implemented using Perl_mro_meta_init,
+ * which is not public and only available inside the core, as the mro
+ * interface as well as the structure returned by mro_meta_init isn't
+ * considered to be stable yet.
+ *
+ * Perl_mro_meta_init isn't declared static, so we could just define it
+ * ourselfs if perls headers don't do that for us, except that won't work
+ * on platforms where symbols need to be explicitly exported when linking
+ * shared libraries.
+ *
+ * So our, hopefully temporary, solution is to be even more evil and
+ * basically reimplement HvMROMETA in a very fragile way that'll blow up
+ * when the relevant parts of the mro implementation in core change.
+ *
+ * :-(
+ *
+ */
+
+ return HvAUX(stash)->xhv_mro_meta
+ ? HvAUX(stash)->xhv_mro_meta->pkg_gen
+ : 0;
}
#else /* pre 5.10.0 */
static UV
-mop_check_package_cache_flag(pTHX_ HV* stash) {
+mop_check_package_cache_flag(pTHX_ HV *stash) {
PERL_UNUSED_ARG(stash);
assert(SvTYPE(stash) == SVt_PVHV);
#endif
#define call0(s, m) mop_call0(aTHX_ s, m)
-static SV*
-mop_call0(pTHX_ SV* const self, SV* const method) {
+static SV *
+mop_call0(pTHX_ SV *const self, SV *const method) {
dSP;
- SV* ret;
+ SV *ret;
PUSHMARK(SP);
XPUSHs(self);
while ( (he = hv_iternext(stash)) ) {
STRLEN keylen;
char *key = HePV(he, keylen);
- hv_store(ret, key, keylen, SvREFCNT_inc(HeVAL(he)), 0);
+ if (!hv_store(ret, key, keylen, SvREFCNT_inc(HeVAL(he)), 0)) {
+ croak("failed to store glob ref");
+ }
}
return ret;
if (sv) {
char *key = HePV(he, keylen);
- hv_store(ret, key, keylen, newRV_inc(sv), 0);
+ if (!hv_store(ret, key, keylen, newRV_inc(sv), 0)) {
+ croak("failed to store symbol ref");
+ }
}
}
static void
-mop_update_method_map(pTHX_ SV* const self, SV* const class_name, HV* const stash, HV* const map) {
- const char* const class_name_pv = HvNAME(stash); /* must be HvNAME(stash), not SvPV_nolen_const(class_name) */
- SV* method_metaclass_name;
- char* method_name;
+mop_update_method_map(pTHX_ SV *const self, SV *const class_name, HV *const stash, HV *const map) {
+ const char *const class_name_pv = HvNAME(stash); /* must be HvNAME(stash), not SvPV_nolen_const(class_name) */
+ SV *method_metaclass_name;
+ char *method_name;
I32 method_name_len;
- SV *coderef;
- HV *symbols;
+ SV *coderef;
+ HV *symbols;
dSP;
symbols = get_all_package_symbols(stash, TYPE_FILTER_CODE);
(void)hv_iterinit(symbols);
while ( (coderef = hv_iternextsv(symbols, &method_name, &method_name_len)) ) {
- CV* cv = (CV *)SvRV(coderef);
- char* cvpkg_name;
- char* cv_name;
- SV* method_slot;
- SV* method_object;
+ CV *cv = (CV *)SvRV(coderef);
+ char *cvpkg_name;
+ char *cv_name;
+ SV *method_slot;
+ SV *method_object;
if (!get_code_info(coderef, &cvpkg_name, &cv_name)) {
continue;
method_slot = *hv_fetch(map, method_name, method_name_len, TRUE);
if ( SvOK(method_slot) ) {
- SV* const body = call0(method_slot, key_body); /* $method_object->body() */
- if ( SvROK(body) && ((CV*) SvRV(body)) == cv ) {
+ SV *const body = call0(method_slot, key_body); /* $method_object->body() */
+ if ( SvROK(body) && ((CV *) SvRV(body)) == cv ) {
continue;
}
}
PUSHMARK(SP);
EXTEND(SP, 8);
PUSHs(method_metaclass_name); /* invocant */
- mPUSHs(newRV_inc((SV*)cv));
+ mPUSHs(newRV_inc((SV *)cv));
PUSHs(associated_metaclass);
PUSHs(self);
PUSHs(key_package_name);
MODULE = Class::MOP PACKAGE = Class::MOP
BOOT:
- key_name = newSVpvs("name");
- key_body = newSVpvs("body");
- key_package = newSVpvs("package");
- key_package_name = newSVpvs("package_name");
- key_package_cache_flag = newSVpvs("_package_cache_flag");
- key_methods = newSVpvs("methods");
-
- PERL_HASH(hash_name, "name", 4);
- PERL_HASH(hash_body, "body", 4);
- PERL_HASH(hash_package, "package", 7);
- PERL_HASH(hash_package_name, "package_name", 12);
- PERL_HASH(hash_package_cache_flag, "_package_cache_flag", 19);
- PERL_HASH(hash_methods, "methods", 7);
+ PREHASH_KEY(name);
+ PREHASH_KEY(body);
+ PREHASH_KEY(package);
+ PREHASH_KEY(package_name);
+ PREHASH_KEY(methods);
+ PREHASH_KEY(ISA);
+ PREHASH_KEY(VERSION);
+ PREHASH_KEY_WITH_VALUE(package_cache_flag, "_package_cache_flag");
method_metaclass = newSVpvs("method_metaclass");
wrap = newSVpvs("wrap");
associated_metaclass = newSVpvs("associated_metaclass");
-PROTOTYPES: ENABLE
-
+PROTOTYPES: DISABLE
+# use prototype here to be compatible with get_code_info from Sub::Identify
void
get_code_info(coderef)
- SV* coderef
+ SV *coderef
+ PROTOTYPE: $
PREINIT:
- char* pkg = NULL;
- char* name = NULL;
+ char *pkg = NULL;
+ char *name = NULL;
PPCODE:
if (get_code_info(coderef, &pkg, &name)) {
EXTEND(SP, 2);
PUSHs(newSVpv(name, 0));
}
+# This is some pretty grotty logic. It _should_ be parallel to the
+# pure Perl version in lib/Class/MOP.pm, so if you want to understand
+# it we suggest you start there.
+void
+is_class_loaded(klass=&PL_sv_undef)
+ SV *klass
+ PREINIT:
+ HV *stash;
+ char *key;
+ I32 keylen;
+ GV *gv;
+ PPCODE:
+ if (!SvPOK(klass) || !SvCUR(klass)) {
+ XSRETURN_NO;
+ }
+
+ stash = gv_stashsv(klass, 0);
+ if (!stash) {
+ XSRETURN_NO;
+ }
+
+ if (hv_exists_ent (stash, key_VERSION, hash_VERSION)) {
+ HE *version = hv_fetch_ent(stash, key_VERSION, 0, hash_VERSION);
+ SV *version_sv;
+ if (version && HeVAL(version) && (version_sv = GvSV(HeVAL(version)))) {
+ if (SvROK(version_sv)) {
+ SV *version_sv_ref = SvRV(version_sv);
+
+ if (SvOK(version_sv_ref)) {
+ XSRETURN_YES;
+ }
+ }
+ else if (SvOK(version_sv)) {
+ XSRETURN_YES;
+ }
+ }
+ }
+
+ if (hv_exists_ent (stash, key_ISA, hash_ISA)) {
+ HE *isa = hv_fetch_ent(stash, key_ISA, 0, hash_ISA);
+ if (isa && HeVAL(isa) && GvAV(HeVAL(isa))) {
+ XSRETURN_YES;
+ }
+ }
+
+ (void)hv_iterinit(stash);
+ while ((gv = (GV *)hv_iternextsv(stash, &key, &keylen))) {
+ if (keylen <= 0) {
+ continue;
+ }
+
+ if (key[keylen - 1] == ':' && key[keylen - 2] == ':') {
+ continue;
+ }
+
+ if (GvCV(gv)) {
+ XSRETURN_YES;
+ }
+ }
+
+ XSRETURN_NO;
MODULE = Class::MOP PACKAGE = Class::MOP::Package
get_all_package_symbols(self, filter=TYPE_FILTER_NONE)
SV *self
type_filter_t filter
- PROTOTYPE: $;$
PREINIT:
HV *stash = NULL;
HV *symbols = NULL;
XSRETURN_EMPTY;
}
-
PUTBACK;
if ( (he = hv_fetch_ent((HV *)SvRV(self), key_package, 0, hash_package)) ) {
if (!stash) {
- switch (GIMME_V) {
- case G_SCALAR: XSRETURN_UNDEF; break;
- case G_ARRAY: XSRETURN_EMPTY; break;
- }
+ XSRETURN_UNDEF;
}
symbols = get_all_package_symbols(stash, filter);
-
- switch (GIMME_V) {
- case G_SCALAR:
- PUSHs(sv_2mortal(newRV_inc((SV *)symbols)));
- break;
- case G_ARRAY:
- warn("Class::MOP::Package::get_all_package_symbols in list context is deprecated. use scalar context instead.");
-
- EXTEND(SP, HvKEYS(symbols) * 2);
-
- while ((he = hv_iternext(symbols))) {
- PUSHs(hv_iterkeysv(he));
- PUSHs(sv_2mortal(SvREFCNT_inc(HeVAL(he))));
- }
-
- break;
- default:
- break;
- }
-
- SvREFCNT_dec((SV *)symbols);
+ PUSHs(sv_2mortal(newRV_noinc((SV *)symbols)));
void
name(self)
void
get_method_map(self)
- SV* self
+ SV *self
PREINIT:
HV *const obj = (HV *)SvRV(self);
SV *const class_name = HeVAL( hv_fetch_ent(obj, key_package, 0, hash_package) );
PPCODE:
/* in $self->{methods} does not yet exist (or got deleted) */
if ( !SvROK(map_ref) || SvTYPE(SvRV(map_ref)) != SVt_PVHV ) {
- SV* new_map_ref = newRV_noinc((SV *)newHV());
+ SV *new_map_ref = newRV_noinc((SV *)newHV());
sv_2mortal(new_map_ref);
sv_setsv(map_ref, new_map_ref);
}
if ( !SvOK(cache_flag) || SvUV(cache_flag) != current ) {
- mop_update_method_map(aTHX_ self, class_name, stash, (HV*)SvRV(map_ref));
+ mop_update_method_map(aTHX_ self, class_name, stash, (HV *)SvRV(map_ref));
sv_setuv(cache_flag, check_package_cache_flag(stash)); /* update_cache_flag() */
}
projects / gitmo/Class-MOP.git / blobdiff