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September 12, 2024 10:17
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None linear node printer : link could come from anywhere
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| <?php | |
| class Edge | |
| { | |
| public function __construct(public readonly Verticle $linkedFrom, public readonly Verticle $linkedTo) | |
| { | |
| } | |
| } | |
| class Verticle | |
| { | |
| public function __construct(public readonly int $version) | |
| { | |
| } | |
| public function equals(Verticle $that) | |
| { | |
| return $this === $that; | |
| } | |
| } | |
| class NodeMapper | |
| { | |
| /** | |
| * @param array<Edge> $edges | |
| */ | |
| public function __construct(public readonly array $edges) | |
| { | |
| } | |
| public function printEdgeRelationMapping() | |
| { | |
| $previousTo = null; | |
| foreach ($this->edges as $key => $edge) { | |
| $from = $edge->linkedFrom; | |
| $to = $edge->linkedTo; | |
| if ($previousTo?->equals($from)) { | |
| echo $to->version; // From shoul not be dipslay because it is the same as before | |
| } else { | |
| echo $from->version . ' -> ' . $to->version; | |
| } | |
| if (array_key_last($this->edges) !== $key) { | |
| echo ' -> '; | |
| } | |
| $previousTo = $to; | |
| } | |
| } | |
| } | |
| $v1 = new Verticle(1); | |
| $v2 = new Verticle(2); | |
| $v3 = new Verticle(3); | |
| $v4 = new Verticle(4); | |
| $v5 = new Verticle(5); | |
| # v1 -> v2 -> v4 -> V3 -> v5 -> v1 | |
| $e1 = new Edge($v1, $v2); | |
| $e2 = new Edge($v2, $v4); | |
| $e3 = new Edge($v4, $v3); | |
| $e4 = new Edge($v5, $v1); | |
| $nodeMapper = new NodeMapper([$e1, | |
| $e2, | |
| $e3, | |
| $e4 | |
| ]); | |
| $nodeMapper->printEdgeRelationMapping(); |
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