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   1  <?php
   2  
   3  namespace Fig\Link;
   4  
   5  use Psr\Link\EvolvableLinkProviderInterface;
   6  use Psr\Link\LinkInterface;
   7  
   8  class GenericLinkProvider implements EvolvableLinkProviderInterface
   9  {
  10      use EvolvableLinkProviderTrait;
  11  
  12      /**
  13       * Constructs a new link provider.
  14       *
  15       * @param LinkInterface[] $links
  16       *   Optionally, specify an initial set of links for this provider.
  17       *   Note that the keys of the array will be ignored.
  18       */
  19      public function __construct(array $links = [])
  20      {
  21          // This block will throw a type error if any item isn't a LinkInterface, by design.
  22          array_filter($links, function (LinkInterface $item) {
  23              return true;
  24          });
  25  
  26          $hashes = array_map('spl_object_hash', $links);
  27          $this->links = array_combine($hashes, $links);
  28      }
  29  }