Variant f_class_parents(const Variant& obj, bool autoload /* = true */) {
Class* cls;
if (obj.isString()) {
cls = Unit::getClass(obj.getStringData(), autoload);
if (!cls) {
return false;
}
} else if (obj.isObject()) {
cls = obj.getObjectData()->getVMClass();
} else {
return false;
}
Array ret(Array::Create());
for (cls = cls->parent(); cls; cls = cls->parent()) {
ret.set(cls->nameStr(), VarNR(cls->name()));
}
return ret;
}
Variant HHVM_FUNCTION(get_class, const Variant& object /* = null_variant */) {
if (object.isNull()) {
// No arg passed.
String ret;
CallerFrame cf;
auto cls = arGetContextClassImpl<true>(cf());
if (cls) {
ret = String(cls->nameStr());
}
if (ret.empty()) {
raise_warning("get_class() called without object from outside a class");
return false;
}
return ret;
}
if (!object.isObject()) return false;
return VarNR(object.toObject()->getClassName());
}
Variant f_class_implements(const Variant& obj, bool autoload /* = true */) {
Class* cls;
if (obj.isString()) {
cls = Unit::getClass(obj.getStringData(), autoload);
if (!cls) {
return false;
}
} else if (obj.isObject()) {
cls = obj.getObjectData()->getVMClass();
} else {
return false;
}
Array ret(Array::Create());
const Class::InterfaceMap& ifaces = cls->allInterfaces();
for (int i = 0, size = ifaces.size(); i < size; i++) {
ret.set(ifaces[i]->nameStr(), VarNR(ifaces[i]->name()));
}
return ret;
}
void EventHook::RunUserProfiler(const ActRec* ar, int mode) {
// Don't do anything if we are running the profiling function itself
// or if we haven't set up a profiler.
if (g_vmContext->m_executingSetprofileCallback ||
g_vmContext->m_setprofileCallback.isNull()) {
return;
}
// Don't profile 86ctor, since its an implementation detail,
// and we dont guarantee to call it
if (ar->m_func->cls() && ar->m_func == ar->m_func->cls()->getCtor() &&
Func::isSpecial(ar->m_func->name())) {
return;
}
Transl::VMRegAnchor _;
ExecutingSetprofileCallbackGuard guard;
Array params;
Array frameinfo;
if (mode == ProfileEnter) {
params.append(s_enter);
frameinfo.set(s_args, hhvm_get_frame_args(ar));
} else {
params.append(s_exit);
if (!g_vmContext->m_faults.empty()) {
Fault fault = g_vmContext->m_faults.back();
if (fault.m_faultType == Fault::Type::UserException) {
frameinfo.set(s_exception, fault.m_userException);
}
} else if (!ar->m_func->info() &&
!ar->m_func->isGenerator()) {
// TODO (#1131400) This is wrong for builtins
frameinfo.set(s_return, tvAsCVarRef(g_vmContext->m_stack.topTV()));
}
}
params.append(VarNR(ar->m_func->fullName()));
params.append(frameinfo);
vm_call_user_func(g_vmContext->m_setprofileCallback, params);
}
Variant f_class_uses(const Variant& obj, bool autoload /* = true */) {
Class* cls;
if (obj.isString()) {
cls = Unit::getClass(obj.getStringData(), autoload);
if (!cls) {
String err = "class_uses(): Class %s does not exist";
if (autoload) {
err += " and could not be loaded";
}
raise_warning(err.c_str(), obj.toString().c_str());
return false;
}
} else if (obj.isObject()) {
cls = obj.getObjectData()->getVMClass();
} else {
raise_warning("class_uses(): object or string expected");
return false;
}
Array ret(Array::Create());
for (auto const& traitName : cls->preClass()->usedTraits()) {
ret.set(StrNR(traitName), VarNR(traitName));
}
return ret;
}
bool EventHook::RunInterceptHandler(ActRec* ar) {
const Func* func = ar->func();
if (LIKELY(func->maybeIntercepted() == 0)) return true;
// Intercept only original generator / async function calls, not resumption.
if (ar->resumed()) return true;
Variant* h = get_intercept_handler(func->fullNameStr(),
&func->maybeIntercepted());
if (!h) return true;
/*
* In production mode, only functions that we have assumed can be
* intercepted during static analysis should actually be
* intercepted.
*/
if (RuntimeOption::RepoAuthoritative &&
!RuntimeOption::EvalJitEnableRenameFunction) {
if (!(func->attrs() & AttrInterceptable)) {
raise_error("fb_intercept was used on a non-interceptable function (%s) "
"in RepoAuthoritative mode", func->fullName()->data());
}
}
VMRegAnchor _;
PC savePc = vmpc();
Variant doneFlag = true;
Variant called_on;
if (ar->hasThis()) {
called_on = Variant(ar->getThis());
} else if (ar->hasClass()) {
// For static methods, give handler the name of called class
called_on = Variant(const_cast<StringData*>(ar->getClass()->name()));
}
Variant intArgs =
PackedArrayInit(5)
.append(VarNR(ar->func()->fullName()))
.append(called_on)
.append(get_frame_args_with_ref(ar))
.append(h->asCArrRef()[1])
.appendRef(doneFlag)
.toArray();
Variant ret = vm_call_user_func(h->asCArrRef()[0], intArgs);
if (doneFlag.toBoolean()) {
Offset pcOff;
ActRec* outer = g_context->getPrevVMState(ar, &pcOff);
frame_free_locals_inl_no_hook<true>(ar, ar->func()->numLocals());
Stack& stack = vmStack();
stack.top() = (Cell*)(ar + 1);
cellDup(*ret.asCell(), *stack.allocTV());
vmfp() = outer;
vmpc() = outer ? outer->func()->unit()->at(pcOff) : nullptr;
return false;
}
vmfp() = ar;
vmpc() = savePc;
return true;
}
static Variant get_breakpoint_message(const BreakInfo& bi) {
if (auto eb = boost::get<ExnBreak>(&bi)) return VarNR(eb->message);
return init_null();
}
void ThriftBuffer::write(CObjRef data) {
VariableSerializer vs(m_serializerType);
String sdata = vs.serialize(VarNR(data), true);
write(sdata);
}
bool UnitEmitter::insert(UnitOrigin unitOrigin, RepoTxn& txn) {
Repo& repo = Repo::get();
UnitRepoProxy& urp = repo.urp();
int repoId = Repo::get().repoIdForNewUnit(unitOrigin);
if (repoId == RepoIdInvalid) {
return true;
}
m_repoId = repoId;
try {
{
m_lineTable = createLineTable(m_sourceLocTab, m_bclen);
urp.insertUnit[repoId].insert(*this, txn, m_sn, m_md5, m_bc,
m_bclen);
}
int64_t usn = m_sn;
urp.insertUnitLineTable(repoId, txn, usn, m_lineTable);
for (unsigned i = 0; i < m_litstrs.size(); ++i) {
urp.insertUnitLitstr[repoId].insert(txn, usn, i, m_litstrs[i]);
}
for (unsigned i = 0; i < m_arrays.size(); ++i) {
VariableSerializer vs(VariableSerializer::Type::Serialize);
urp.insertUnitArray[repoId].insert(
txn, usn, i,
vs.serializeValue(VarNR(m_arrays[i]), false /* limit */).toCppString()
);
}
for (auto& fe : m_fes) {
fe->commit(txn);
}
for (auto& pce : m_pceVec) {
pce->commit(txn);
}
for (int i = 0, n = m_mergeableStmts.size(); i < n; i++) {
switch (m_mergeableStmts[i].first) {
case MergeKind::Done:
case MergeKind::UniqueDefinedClass:
not_reached();
case MergeKind::Class: break;
case MergeKind::TypeAlias:
case MergeKind::ReqDoc: {
urp.insertUnitMergeable[repoId].insert(
txn, usn, i,
m_mergeableStmts[i].first, m_mergeableStmts[i].second, nullptr);
break;
}
case MergeKind::Define:
case MergeKind::PersistentDefine:
case MergeKind::Global: {
int ix = m_mergeableStmts[i].second;
urp.insertUnitMergeable[repoId].insert(
txn, usn, i,
m_mergeableStmts[i].first,
m_mergeableValues[ix].first, &m_mergeableValues[ix].second);
break;
}
}
}
if (RuntimeOption::RepoDebugInfo) {
for (size_t i = 0; i < m_sourceLocTab.size(); ++i) {
SourceLoc& e = m_sourceLocTab[i].second;
Offset endOff = i < m_sourceLocTab.size() - 1
? m_sourceLocTab[i + 1].first
: m_bclen;
urp.insertUnitSourceLoc[repoId]
.insert(txn, usn, endOff, e.line0, e.char0, e.line1, e.char1);
}
}
return false;
} catch (RepoExc& re) {
TRACE(3, "Failed to commit '%s' (0x%016" PRIx64 "%016" PRIx64 ") to '%s': %s\n",
m_filepath->data(), m_md5.q[0], m_md5.q[1],
repo.repoName(repoId).c_str(), re.msg().c_str());
return true;
}
}
ArrayData* ArrayData::nvSet(int64 ki, int64 vi, bool copy) {
return set(ki, VarNR(vi), copy);
}