void MemoryStream_WriteBytes(MemoryStream *memory_stream, unsigned char *bytes, size_t length)
{
ResizeIfNeeded(memory_stream, memory_stream->position + length);
memcpy(&memory_stream->buffer[memory_stream->position], bytes, length);
memory_stream->position += length;
}
ArrayData* StructArray::SetStr(
ArrayData* ad,
StringData* k,
Cell v,
bool copy
) {
auto structArray = asStructArray(ad);
auto shape = structArray->shape();
auto result = structArray;
auto offset = shape->offsetFor(k);
bool isNewProperty = offset == PropertyTable::kInvalidOffset;
auto convertToMixedAndAdd = [&]() {
auto mixed = copy ? ToMixedCopy(structArray) : ToMixed(structArray);
return mixed->addValNoAsserts(k, v);
};
if (isNewProperty) {
StringData* staticKey;
// We don't support adding non-static strings yet.
if (k->isStatic()) {
staticKey = k;
} else {
staticKey = lookupStaticString(k);
if (!staticKey) return convertToMixedAndAdd();
}
auto newShape = shape->transition(staticKey);
if (!newShape) return convertToMixedAndAdd();
result = copy ? CopyAndResizeIfNeeded(structArray, newShape)
: ResizeIfNeeded(structArray, newShape);
offset = result->shape()->offsetFor(staticKey);
assert(offset != PropertyTable::kInvalidOffset);
TypedValue* dst = &result->data()[offset];
// TODO(#3888164): we should restructure things so we don't have to
// check KindOfUninit here.
if (UNLIKELY(v.m_type == KindOfUninit)) v = make_tv<KindOfNull>();
cellDup(v, *dst);
return result;
}
if (copy) {
result = asStructArray(Copy(structArray));
}
assert(offset != PropertyTable::kInvalidOffset);
TypedValue* dst = &result->data()[offset];
if (UNLIKELY(v.m_type == KindOfUninit)) v = make_tv<KindOfNull>();
cellSet(v, *tvToCell(dst));
return result;
}
ArrayData* PackedArray::LvalNew(ArrayData* adIn, Variant*& ret, bool copy) {
assert(checkInvariants(adIn));
auto const ad = copy ? CopyAndResizeIfNeeded(adIn)
: ResizeIfNeeded(adIn);
if (UNLIKELY(!ad)) {
auto const mixed = copy ? ToMixedCopy(adIn) : ToMixed(ad);
return MixedArray::LvalNew(mixed, ret, copy);
}
if (ad->m_pos == ArrayData::invalid_index) {
ad->m_pos = ad->m_size;
}
auto& tv = packedData(ad)[ad->m_size++];
tv.m_type = KindOfNull;
ret = &tvAsVariant(&tv);
return ad;
}
ArrayData* PackedArray::Append(ArrayData* adIn, const Variant& v, bool copy) {
assert(checkInvariants(adIn));
auto const ad = copy ? CopyAndResizeIfNeeded(adIn)
: ResizeIfNeeded(adIn);
if (UNLIKELY(!ad)) {
auto const mixed = copy ? ToMixedCopy(adIn) : ToMixed(adIn);
return MixedArray::Append(mixed, v, copy);
}
if (ad->m_pos == ArrayData::invalid_index) {
ad->m_pos = ad->m_size;
}
auto& dst = packedData(ad)[ad->m_size++];
cellDup(*v.asCell(), dst);
// TODO(#3888164): restructure this so we don't need KindOfUninit checks.
if (dst.m_type == KindOfUninit) dst.m_type = KindOfNull;
return ad;
}
ArrayData* PackedArray::AppendWithRef(ArrayData* adIn,
const Variant& v,
bool copy) {
assert(checkInvariants(adIn));
auto const ad = copy ? CopyAndResizeIfNeeded(adIn)
: ResizeIfNeeded(adIn);
if (UNLIKELY(!ad)) {
auto const mixed = copy ? ToMixedCopy(adIn) : ToMixed(adIn);
// XXX: constness
return MixedArray::AppendRef(mixed, const_cast<Variant&>(v), copy);
}
if (ad->m_pos == ArrayData::invalid_index) {
ad->m_pos = ad->m_size;
}
auto& dst = packedData(ad)[ad->m_size++];
dst.m_type = KindOfNull;
tvAsVariant(&dst).setWithRef(v);
return ad;
}
ArrayData* PackedArray::AppendRef(ArrayData* adIn,
Variant& v,
bool copy) {
assert(checkInvariants(adIn));
auto const ad = copy ? CopyAndResizeIfNeeded(adIn)
: ResizeIfNeeded(adIn);
if (UNLIKELY(!ad)) {
auto const mixed = copy ? ToMixedCopy(adIn) : ToMixed(adIn);
return MixedArray::AppendRef(mixed, v, copy);
}
if (ad->m_pos == ArrayData::invalid_index) {
ad->m_pos = ad->m_size;
}
auto& dst = packedData(ad)[ad->m_size++];
dst.m_data.pref = v.asRef()->m_data.pref;
dst.m_type = KindOfRef;
dst.m_data.pref->incRefCount();
return ad;
}
ArrayData* StructArray::LvalStr(
ArrayData* ad,
StringData* property,
Variant*& ret,
bool copy
) {
auto structArray = asStructArray(ad);
auto shape = structArray->shape();
auto offset = shape->offsetFor(property);
if (offset != PropertyTable::kInvalidOffset) {
auto const result = asStructArray(
copy ? Copy(structArray) : structArray);
ret = &tvAsVariant(&result->data()[offset]);
return result;
}
auto convertToMixedAndAdd = [&]() {
auto mixed = copy ? ToMixedCopy(structArray) : ToMixed(structArray);
return mixed->addLvalImpl(property, ret);
};
// We don't support adding non-static strings yet.
StringData* staticKey;
if (property->isStatic()) {
staticKey = property;
} else {
staticKey = lookupStaticString(property);
if (!staticKey) return convertToMixedAndAdd();
}
auto newShape = shape->transition(staticKey);
if (!newShape) return convertToMixedAndAdd();
auto result = copy ? CopyAndResizeIfNeeded(structArray, newShape)
: ResizeIfNeeded(structArray, newShape);
assert(newShape->hasOffsetFor(staticKey));
offset = newShape->offsetFor(staticKey);
tvWriteNull(&result->data()[offset]);
ret = &tvAsVariant(&result->data()[offset]);
return result;
}
ArrayData* PackedArray::Prepend(ArrayData* adIn,
const Variant& v,
bool copy) {
assert(checkInvariants(adIn));
auto const ad = adIn->hasMultipleRefs() ? CopyAndResizeIfNeeded(adIn)
: ResizeIfNeeded(adIn);
// To conform to PHP behavior, we invalidate all strong iterators when an
// element is added to the beginning of the array.
if (UNLIKELY(strong_iterators_exist())) {
free_strong_iterators(ad);
}
auto const size = ad->m_size;
auto const data = packedData(ad);
std::memmove(data + 1, data, sizeof *data * size);
// TODO(#3888164): constructValHelper is making KindOfUninit checks.
tvAsUninitializedVariant(&data[0]).constructValHelper(v);
ad->m_size = size + 1;
ad->m_pos = 0;
return ad;
}
void MemoryStream_WriteByte(MemoryStream *memory_stream, unsigned char byte)
{
ResizeIfNeeded(memory_stream, memory_stream->position + 1);
memory_stream->buffer[memory_stream->position++] = byte;
}
