Normalizes a graph.

Parameters

$graph: A graph array processed by \Drupal\Component\Graph\Graph::searchAndSort()

Return value

array The normalized version of a graph.

1 call to GraphTest::normalizeGraph()

GraphTest::testDepthFirstSearch in core/tests/Drupal/Tests/Component/Graph/GraphTest.php

Test depth-first-search features.

File

core/tests/Drupal/Tests/Component/Graph/GraphTest.php, line 89

Class

GraphTest

@coversDefaultClass \Drupal\Component\Graph\Graph[[api-linebreak]] @group Graph

Namespace

Drupal\Tests\Component\Graph

Code

protected function normalizeGraph($graph) {
  $normalized_graph = [];
  foreach ($graph as $vertex => $edges) {
    // Create vertex even if it hasn't any edges.
    $normalized_graph[$vertex] = [];
    foreach ($edges as $edge) {
      $normalized_graph[$vertex]['edges'][$edge] = TRUE;
    }
  }
  return $normalized_graph;
}

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