void tvDecRefHelper(DataType type, uint64_t datum) noexcept {
assert(type == KindOfString || type == KindOfArray ||
type == KindOfObject || type == KindOfResource ||
type == KindOfRef);
TypedValue tmp;
tmp.m_type = type;
tmp.m_data.num = datum;
if (TV_GENERIC_DISPATCH(tmp, decReleaseCheck)) {
g_destructors[typeToDestrIdx(type)]((void*)datum);
}
}
// the version of the high frequency function that is not inlined
NEVER_INLINE
Variant::Variant(const Variant& v) noexcept {
constructValHelper(v);
}
/*
* The destruct functions below all arbitrarily take RefData* as an
* example of a refcounted object, then just cast to the proper type.
* This is safe because we have compile time assertions that guarantee that
* the _count field will always be exactly FAST_REFCOUNT_OFFSET bytes from
* the beginning of the object for the StringData, ArrayData, ObjectData,
* ResourceHdr, and RefData classes.
*/
static_assert(typeToDestrIdx(KindOfString) == 2, "String destruct index");
static_assert(typeToDestrIdx(KindOfArray) == 3, "Array destruct index");
static_assert(typeToDestrIdx(KindOfObject) == 4, "Object destruct index");
static_assert(typeToDestrIdx(KindOfResource) == 5,
"Resource destruct index");
static_assert(typeToDestrIdx(KindOfRef) == 6, "Ref destruct index");
static_assert(kDestrTableSize == 7,
"size of g_destructors[] must be kDestrTableSize");
RawDestructor g_destructors[] = {
nullptr,
nullptr,
(RawDestructor)getMethodPtr(&StringData::release),
(RawDestructor)getMethodPtr(&ArrayData::release),
(RawDestructor)getMethodPtr(&ObjectData::release), // may replace at runtime
void tweak_variant_dtors() {
if (RuntimeOption::EnableObjDestructCall) return;
g_destructors[typeToDestrIdx(KindOfObject)] =
(RawDestructor)getMethodPtr(&ObjectData::releaseNoObjDestructCheck);
}
// the version of the high frequency function that is not inlined
NEVER_INLINE
Variant::Variant(const Variant& v) noexcept {
constructValHelper(v);
}
/*
* The destruct functions below all arbitrarily take RefData* as an
* example of a refcounted object, then just cast to the proper type.
* This is safe because we have compile time assertions that guarantee that
* the _count field will always be exactly FAST_REFCOUNT_OFFSET bytes from
* the beginning of the object for the StringData, ArrayData, ObjectData,
* ResourceHdr, and RefData classes.
*/
static_assert(typeToDestrIdx(KindOfObject) == 16, "Object destruct index");
static_assert(typeToDestrIdx(KindOfResource) == 20, "Resource destruct index");
static_assert(typeToDestrIdx(KindOfVec) == 22, "Vec destruct index");
static_assert(typeToDestrIdx(KindOfString) == 24, "String destruct index");
static_assert(typeToDestrIdx(KindOfDict) == 26, "Dict destruct index");
static_assert(typeToDestrIdx(KindOfRef) == 28, "Ref destruct index");
static_assert(typeToDestrIdx(KindOfArray) == 29, "Array destruct index");
static_assert(typeToDestrIdx(KindOfKeyset) == 30, "Keyset destruct index");
static_assert(kDestrTableSize == 31,
"size of g_destructors[] must be kDestrTableSize");
RawDestructor g_destructors[] = {
nullptr,
nullptr,
nullptr,
