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<?php |
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namespace Bdf\Collection\Stream\Collector; |
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use Bdf\Collection\HashTable; |
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use Bdf\Collection\TableInterface; |
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use Bdf\Collection\Util\Functor\Transformer\Getter; |
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use Bdf\Collection\Util\Hash; |
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/** |
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* Indexing elements by an extracted key |
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* |
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* Only one occurrence can be set for one key. If two elements have the same key, the last one will override the first one |
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* It's advisable to perform a StreamInterface::distinct() using the same getter before indexing the elements if there is possible duplicate keys |
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* |
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* <code> |
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* $stream = new ArrayStream([ |
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* new Person('John', 'Doe'), |
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* new Person('Mickey', 'Mouse'), |
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* new Person('Donald', 'Duck'), |
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* ]); |
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* |
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* $stream->collect(new IndexingBy(new Getter('firstName'))); |
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* // Result : Array [ |
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* // 'John' => Person('John', 'Doe'), |
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* // 'Mickey' => Person('Mickey', 'Mouse'), |
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* // 'Donald' => Person('Donald', 'Duck'), ] |
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* </code> |
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* |
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* @template V |
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* @template RK |
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* @template R of array|TableInterface |
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* |
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* @implements CollectorInterface<V, mixed, R> |
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*/ |
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final class IndexingBy implements CollectorInterface |
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{ |
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/** |
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* @var callable(V):RK |
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*/ |
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private $getter; |
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/** |
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* @var R |
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*/ |
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private $table; |
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/** |
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* GroupingBy constructor. |
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* |
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* @param callable(V):RK $getter Extract the group key from element |
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* @param array<RK,V>|TableInterface<RK,V> $table The result table or array |
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*/ |
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public function __construct(callable $getter, iterable $table = []) |
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{ |
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$this->getter = $getter; |
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$this->table = $table; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function aggregate($element, $key = null): void |
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{ |
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$this->table[($this->getter)($element)] = $element; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function finalize() |
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{ |
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return $this->table; |
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} |
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/** |
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* Indexing elements by a scalar key (integer or string) |
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* |
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* <code> |
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* // Perform the same operation |
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* $stream->collection(IndexingBy::scalar(function ($entity) { return $entity->firstName(); }); |
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* $stream->collection(IndexingBy::scalar(new Getter('firstName')); |
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* $stream->collection(IndexingBy::scalar('firstName')); |
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* </code> |
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* |
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* @template sV |
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* @template sRK as array-key |
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* |
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* @param string|callable(sV):sRK $getter The key getter function or name |
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* |
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* @return IndexingBy<sV, sRK, array<sRK, sV>> |
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*/ |
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public static function scalar($getter): self |
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{ |
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return new IndexingBy(is_callable($getter) ? $getter : new Getter($getter)); |
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} |
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/** |
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* Indexing elements by a complex type key like array or object |
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* |
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* <code> |
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* // Indexing by multiple key values |
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* $stream->collection(IndexingBy::hash(function ($e) { return [$e->pk1(), $e->pk2()]; })); |
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* |
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* // Indexing by object |
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* $stream->collection(IndexingBy::hash(new Getter('embeddedEntity')); |
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* </code> |
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* |
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* @template hV |
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* @template hRK |
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* |
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* @param callable(hV):hRK $getter The key getter |
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* @param callable(hRK):array-key|null $hashFunction The hash function, which will be applied to the key value. By default use Hash::compute |
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* |
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* @return IndexingBy<hV, hRK, TableInterface<hRK, hV>> |
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* |
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* @see Hash::compute() |
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*/ |
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public static function hash(callable $getter, ?callable $hashFunction = null): self |
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{ |
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return new IndexingBy($getter, new HashTable($hashFunction)); |
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} |
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} |
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b2pweb /
bdf-collections
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The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g.
excluded_paths: ["lib/*"], you can move it to the dependency path list as follows:For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths