Cell lookupCnsHelper(StringData* nm, bool error) {
auto const cns = lookupCnsImpl(nm);
if (LIKELY(cns != nullptr)) {
Cell c1;
cellDup(*cns, c1);
return c1;
}
// Undefined constants.
if (error) {
raise_error("Undefined constant '%s'", nm->data());
} else {
raise_notice(Strings::UNDEFINED_CONSTANT, nm->data(), nm->data());
Cell c1;
c1.m_data.pstr = const_cast<StringData*>(nm);
c1.m_type = KindOfPersistentString;
return c1;
}
not_reached();
}
Cell lookupCnsUHelperPersistent(rds::Handle tv_handle,
StringData* nm, StringData* fallback) {
assertx(rds::isPersistentHandle(tv_handle));
// Lookup qualified name in thread-local constants.
auto cns = lookupCnsImpl(nm);
// Try cache handle for unqualified name.
auto const tv = &rds::handleToRef<TypedValue>(tv_handle);
if (UNLIKELY(!cns && tv->m_type != KindOfUninit)) {
cns = tv;
}
if (LIKELY(cns != nullptr)) {
Cell c1;
cellDup(*cns, c1);
return c1;
}
return lookupCnsHelper(fallback, false);
}
Cell lookupCnsUHelperNormal(rds::Handle tv_handle,
StringData* nm, StringData* fallback) {
assertx(rds::isNormalHandle(tv_handle));
// Lookup qualified name in thread-local constants.
auto cns = lookupCnsImpl(nm);
// Try cache handle for unqualified name.
if (UNLIKELY(!cns && rds::isHandleInit(tv_handle, rds::NormalTag{}))) {
cns = &rds::handleToRef<TypedValue>(tv_handle);
assertx(cns->m_type != KindOfUninit);
}
if (LIKELY(cns != nullptr)) {
Cell c1;
cellDup(*cns, c1);
return c1;
}
// Lookup unqualified name in thread-local constants.
return lookupCnsHelper(fallback, false);
}
