Mercurial > hg > isophonics-drupal-site
view vendor/nikic/php-parser/lib/PhpParser/NodeFinder.php @ 13:5fb285c0d0e3
Update Drupal core to 8.4.7 via Composer. Security update; I *think* we've
been lucky to get away with this so far, as we don't support self-registration
which seems to be used by the so-called "drupalgeddon 2" attack that 8.4.5
was vulnerable to.
author | Chris Cannam |
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date | Mon, 23 Apr 2018 09:33:26 +0100 |
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children |
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<?php declare(strict_types=1); namespace PhpParser; use PhpParser\NodeVisitor\FindingVisitor; use PhpParser\NodeVisitor\FirstFindingVisitor; class NodeFinder { /** * Find all nodes satisfying a filter callback. * * @param Node|Node[] $nodes Single node or array of nodes to search in * @param callable $filter Filter callback: function(Node $node) : bool * * @return Node[] Found nodes satisfying the filter callback */ public function find($nodes, callable $filter) : array { if (!is_array($nodes)) { $nodes = [$nodes]; } $visitor = new FindingVisitor($filter); $traverser = new NodeTraverser; $traverser->addVisitor($visitor); $traverser->traverse($nodes); return $visitor->getFoundNodes(); } /** * Find all nodes that are instances of a certain class. * * @param Node|Node[] $nodes Single node or array of nodes to search in * @param string $class Class name * * @return Node[] Found nodes (all instances of $class) */ public function findInstanceOf($nodes, string $class) : array { return $this->find($nodes, function ($node) use ($class) { return $node instanceof $class; }); } /** * Find first node satisfying a filter callback. * * @param Node|Node[] $nodes Single node or array of nodes to search in * @param callable $filter Filter callback: function(Node $node) : bool * * @return null|Node Found node (or null if none found) */ public function findFirst($nodes, callable $filter) { if (!is_array($nodes)) { $nodes = [$nodes]; } $visitor = new FirstFindingVisitor($filter); $traverser = new NodeTraverser; $traverser->addVisitor($visitor); $traverser->traverse($nodes); return $visitor->getFoundNode(); } /** * Find first node that is an instance of a certain class. * * @param Node|Node[] $nodes Single node or array of nodes to search in * @param string $class Class name * * @return null|Node Found node, which is an instance of $class (or null if none found) */ public function findFirstInstanceOf($nodes, string $class) { return $this->findFirst($nodes, function ($node) use ($class) { return $node instanceof $class; }); } }