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<?php |
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declare(strict_types=1); |
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namespace Remorhaz\JSON\Path\Value; |
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use function array_key_exists; |
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use function array_keys; |
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use function count; |
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use function in_array; |
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final class IndexMap implements IndexMapInterface |
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{ |
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private $outerIndexes; |
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public function __construct(?int ...$outerIndexes) |
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{ |
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$this->outerIndexes = $outerIndexes; |
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} |
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public function count() |
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{ |
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return count($this->outerIndexes); |
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} |
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public function getInnerIndexes(): array |
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{ |
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return array_keys($this->outerIndexes); |
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} |
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public function getOuterIndexes(): array |
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{ |
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return $this->outerIndexes; |
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} |
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public function getOuterIndex(int $innerIndex): int |
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{ |
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if (!isset($this->outerIndexes[$innerIndex])) { |
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throw new Exception\OuterIndexNotFoundException($innerIndex, $this); |
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} |
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return $this->outerIndexes[$innerIndex]; |
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} |
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public function outerIndexExists(int $outerIndex): bool |
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{ |
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return in_array($outerIndex, $this->outerIndexes, true); |
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} |
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public function split(): IndexMapInterface |
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{ |
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return new self(...$this->getInnerIndexes()); |
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} |
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public function join(IndexMapInterface $indexMap): IndexMapInterface |
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{ |
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$outerIndexes = []; |
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foreach ($indexMap->getOuterIndexes() as $innerIndex => $outerIndex) { |
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$outerIndexes[] = $this->outerIndexExists($innerIndex) |
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? $outerIndex |
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: null; |
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} |
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return new self(...$outerIndexes); |
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} |
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public function equals(IndexMapInterface $indexMap): bool |
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{ |
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return $this->outerIndexes === $indexMap->getOuterIndexes(); |
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} |
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public function isCompatible(IndexMapInterface $indexMap): bool |
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{ |
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if (count($indexMap) != count($this)) { |
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return false; |
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} |
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$anotherMap = $indexMap->getOuterIndexes(); |
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foreach ($this->outerIndexes as $innerIndex => $outerIndex) { |
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if (!array_key_exists($innerIndex, $anotherMap)) { |
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return false; |
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} |
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if (!isset($outerIndex, $anotherMap[$innerIndex])) { |
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continue; |
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} |
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if ($outerIndex !== $anotherMap[$innerIndex]) { |
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return false; |
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} |
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} |
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return true; |
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} |
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} |
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remorhaz /
php-json-path
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