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<?php |
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namespace Smoren\GraphTools\Structs; |
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use Smoren\GraphTools\Models\Interfaces\EdgeInterface; |
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use Smoren\GraphTools\Models\Interfaces\VertexInterface; |
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use Smoren\GraphTools\Structs\Interfaces\TraverseBranchContextInterface; |
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use Smoren\GraphTools\Structs\Interfaces\TraverseContextInterface; |
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class TraverseContext implements TraverseContextInterface |
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{ |
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/** |
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* @var VertexInterface |
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*/ |
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protected VertexInterface $vertex; |
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/** |
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* @var EdgeInterface|null |
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*/ |
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protected ?EdgeInterface $edge; |
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/** |
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* @var TraverseBranchContextInterface |
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*/ |
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protected TraverseBranchContextInterface $branchContext; |
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/** |
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* @var array<string, VertexInterface> |
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*/ |
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protected array $passedVertexesMap; |
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/** |
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* @var array<string, VertexInterface> |
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*/ |
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protected array $globalPassedVertexesMap; |
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/** |
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* @param VertexInterface $vertex |
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* @param EdgeInterface|null $edge |
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* @param TraverseBranchContextInterface $branchContext |
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* @param array<string, VertexInterface> $passedVertexesMap |
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* @param array<string, VertexInterface> $globalPassedVertexesMap |
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*/ |
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public function __construct( |
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VertexInterface $vertex, |
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?EdgeInterface $edge, |
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TraverseBranchContextInterface $branchContext, |
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array $passedVertexesMap, |
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array &$globalPassedVertexesMap |
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) { |
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$this->vertex = $vertex; |
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$this->edge = $edge; |
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$this->branchContext = $branchContext; |
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$this->passedVertexesMap = $passedVertexesMap; |
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$this->globalPassedVertexesMap = &$globalPassedVertexesMap; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getVertex(): VertexInterface |
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{ |
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return $this->vertex; |
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} |
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/** |
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* @return VertexInterface|null |
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*/ |
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public function getPrevVertex(): ?VertexInterface |
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{ |
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$candidate = end($this->passedVertexesMap); |
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return $candidate ?: null; |
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} |
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/** |
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* @return EdgeInterface|null |
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*/ |
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public function getEdge(): ?EdgeInterface |
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{ |
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return $this->edge; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getBranchContext(): TraverseBranchContextInterface |
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{ |
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return $this->branchContext; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getPassedVertexesMap(): array |
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{ |
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return $this->passedVertexesMap; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getGlobalPassedVertexesMap(): array |
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{ |
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return $this->globalPassedVertexesMap; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function isLoop(): bool |
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{ |
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return isset($this->passedVertexesMap[$this->vertex->getId()]); |
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} |
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} |
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Smoren /
graph-tools-php
