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Store current and next slot id in CollectionIterator

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This commit is contained in:
Benoit Blanchon
2023-07-20 10:36:44 +02:00
parent 0f3c73a211
commit d4af8cffa7
2 changed files with 16 additions and 11 deletions
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7
src/ArduinoJson/Collection/CollectionData.hpp
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@ -18,7 +18,7 @@ class CollectionIterator {
friend class CollectionData;
public:
CollectionIterator() : slot_(nullptr) {}
CollectionIterator() : slot_(nullptr), currentId_(NULL_SLOT) {}
void next(const ResourceManager* resources);
@ -64,9 +64,10 @@ class CollectionIterator {
}
private:
CollectionIterator(VariantSlot* slot) : slot_(slot) {}
CollectionIterator(VariantSlot* slot, SlotId slotId);
VariantSlot* slot_;
SlotId currentId_, nextId_;
};
class CollectionData {
@ -84,7 +85,7 @@ class CollectionData {
using iterator = CollectionIterator;
iterator createIterator(const ResourceManager* resources) const {
return iterator(resources->getSlot(head_));
return iterator(resources->getSlot(head_), head_);
}
size_t memoryUsage(const ResourceManager*) const;

20
src/ArduinoJson/Collection/CollectionImpl.hpp
View File

@ -12,6 +12,11 @@
ARDUINOJSON_BEGIN_PRIVATE_NAMESPACE
inline CollectionIterator::CollectionIterator(VariantSlot* slot, SlotId slotId)
: slot_(slot), currentId_(slotId) {
nextId_ = slot_ ? slot_->next() : NULL_SLOT;
}
inline const char* CollectionIterator::key() const {
ARDUINOJSON_ASSERT(slot_ != nullptr);
return slot_->key();
@ -35,19 +40,18 @@ inline bool CollectionIterator::ownsKey() const {
}
inline void CollectionIterator::next(const ResourceManager* resources) {
ARDUINOJSON_ASSERT(slot_ != nullptr);
auto nextId = slot_->next();
if (nextId != NULL_SLOT)
slot_ = resources->getSlot(nextId);
else
slot_ = nullptr;
ARDUINOJSON_ASSERT(currentId_ != NULL_SLOT);
slot_ = resources->getSlot(nextId_);
currentId_ = nextId_;
if (slot_)
nextId_ = slot_->next();
}
inline CollectionData::iterator CollectionData::addSlot(
ResourceManager* resources) {
auto slot = resources->allocSlot();
if (!slot)
return nullptr;
return {};
if (tail_ != NULL_SLOT) {
auto tail = resources->getSlot(tail_);
tail->setNext(slot.id());
@ -56,7 +60,7 @@ inline CollectionData::iterator CollectionData::addSlot(
head_ = slot.id();
tail_ = slot.id();
}
return iterator(slot);
return iterator(slot, slot.id());
}
inline void CollectionData::clear(ResourceManager* resources) {