void UnitEmitter::addPreClassEmitter(PreClassEmitter* pce) {
if (pce->hoistability() && m_hoistablePreClassSet.count(pce->name())) {
pce->setHoistable(PreClass::Mergeable);
}
auto hoistable = pce->hoistability();
if (hoistable >= PreClass::MaybeHoistable) {
m_hoistablePreClassSet.insert(pce->name());
if (hoistable == PreClass::ClosureHoistable) {
// Closures should appear at the VERY top of the file, so if any class in
// the same file tries to use them, they are already defined. We had a
// fun race where one thread was autoloading a file, finished parsing the
// class, then another thread came along and saw the class was already
// loaded and ran it before the first thread had time to parse the
// closure class.
m_hoistablePceIdList.push_front(pce->id());
} else {
m_hoistablePceIdList.push_back(pce->id());
}
} else {
m_allClassesHoistable = false;
}
if (hoistable >= PreClass::Mergeable &&
hoistable < PreClass::AlwaysHoistable) {
if (m_returnSeen) {
m_allClassesHoistable = false;
} else {
pushMergeableClass(pce);
}
}
}
void UnitEmitter::addPreClassEmitter(PreClassEmitter* pce) {
if (pce->hoistability() && m_hoistablePreClassSet.count(pce->name())) {
pce->setHoistable(PreClass::Mergeable);
}
auto hoistable = pce->hoistability();
if (hoistable >= PreClass::MaybeHoistable) {
m_hoistablePreClassSet.insert(pce->name());
m_hoistablePceIdList.push_back(pce->id());
} else {
m_allClassesHoistable = false;
}
if (hoistable >= PreClass::Mergeable &&
hoistable < PreClass::AlwaysHoistable) {
if (m_returnSeen) {
m_allClassesHoistable = false;
} else {
pushMergeableClass(pce);
}
}
}
PreClassEmitter* UnitEmitter::newPreClassEmitter(
const StringData* name,
PreClass::Hoistable hoistable
) {
if (hoistable && m_hoistablePreClassSet.count(name)) {
hoistable = PreClass::Mergeable;
}
PreClassEmitter* pce = new PreClassEmitter(*this, m_pceVec.size(),
name, hoistable);
if (hoistable >= PreClass::MaybeHoistable) {
m_hoistablePreClassSet.insert(name);
if (hoistable == PreClass::ClosureHoistable) {
// Closures should appear at the VERY top of the file, so if any class in
// the same file tries to use them, they are already defined. We had a
// fun race where one thread was autoloading a file, finished parsing the
// class, then another thread came along and saw the class was already
// loaded and ran it before the first thread had time to parse the
// closure class.
m_hoistablePceIdList.push_front(pce->id());
} else {
m_hoistablePceIdList.push_back(pce->id());
}
} else {
m_allClassesHoistable = false;
}
if (hoistable >= PreClass::Mergeable &&
hoistable < PreClass::AlwaysHoistable) {
if (m_returnSeen) {
m_allClassesHoistable = false;
} else {
pushMergeableClass(pce);
}
}
m_pceVec.push_back(pce);
return pce;
}