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Merge pull request #381: Fix inserting order in regular cases
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| <?php | ||
|
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| declare(strict_types=1); | ||
|
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| namespace Cycle\ORM\Transaction; | ||
|
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| use Countable; | ||
| use IteratorAggregate; | ||
|
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| /** | ||
| * @internal | ||
| * @implements IteratorAggregate<object, Tuple> | ||
| */ | ||
| final class TupleStorage implements IteratorAggregate, Countable | ||
| { | ||
| /** @var array<int, Tuple> */ | ||
| private array $storage = []; | ||
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| private array $iterators = []; | ||
|
|
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| /** | ||
| * @return \Traversable<object, Tuple> | ||
| */ | ||
| public function getIterator(): \Traversable | ||
| { | ||
| $iterator = $this->storage; | ||
| // When the generator is destroyed, the reference to the iterator is removed from the collection. | ||
| $cleaner = new class () { | ||
| public array $iterators; | ||
| public function __destruct() | ||
| { | ||
| unset($this->iterators[\spl_object_id($this)]); | ||
| } | ||
| }; | ||
| /** @psalm-suppress UnsupportedPropertyReferenceUsage */ | ||
| $cleaner->iterators = &$this->iterators; | ||
| $this->iterators[\spl_object_id($cleaner)] = &$iterator; | ||
|
|
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| while (\count($iterator) > 0) { | ||
| $tuple = \current($iterator); | ||
| unset($iterator[\key($iterator)]); | ||
| yield $tuple->entity => $tuple; | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * Returns {@see Tuple} if exists, throws an exception otherwise. | ||
| * | ||
| * @throws \Throwable if the entity is not found in the storage | ||
| */ | ||
| public function getTuple(object $entity): Tuple | ||
| { | ||
| return $this->storage[\spl_object_id($entity)] ?? throw new \RuntimeException('Tuple not found'); | ||
| } | ||
|
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| public function attach(Tuple $tuple): void | ||
| { | ||
| if ($this->contains($tuple->entity)) { | ||
| return; | ||
| } | ||
|
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| $this->storage[\spl_object_id($tuple->entity)] = $tuple; | ||
| foreach ($this->iterators as &$collection) { | ||
| $collection[\spl_object_id($tuple->entity)] = $tuple; | ||
| } | ||
| } | ||
|
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| public function contains(object $entity): bool | ||
| { | ||
| return \array_key_exists(\spl_object_id($entity), $this->storage); | ||
| } | ||
|
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| public function detach(object $entity): void | ||
| { | ||
| $id = \spl_object_id($entity); | ||
| unset($this->storage[$id]); | ||
| foreach ($this->iterators as &$collection) { | ||
| unset($collection[$id]); | ||
| } | ||
| } | ||
|
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| /** | ||
| * @return int<0, max> | ||
| */ | ||
| public function count(): int | ||
| { | ||
| return \count($this->storage); | ||
| } | ||
| } |
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