diff options
Diffstat (limited to 'vendor/nikic/php-parser/lib/PhpParser/NodeVisitor/FindingVisitor.php')
-rw-r--r-- | vendor/nikic/php-parser/lib/PhpParser/NodeVisitor/FindingVisitor.php | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/vendor/nikic/php-parser/lib/PhpParser/NodeVisitor/FindingVisitor.php b/vendor/nikic/php-parser/lib/PhpParser/NodeVisitor/FindingVisitor.php new file mode 100644 index 000000000..9531edbce --- /dev/null +++ b/vendor/nikic/php-parser/lib/PhpParser/NodeVisitor/FindingVisitor.php @@ -0,0 +1,48 @@ +<?php declare(strict_types=1); + +namespace PhpParser\NodeVisitor; + +use PhpParser\Node; +use PhpParser\NodeVisitorAbstract; + +/** + * This visitor can be used to find and collect all nodes satisfying some criterion determined by + * a filter callback. + */ +class FindingVisitor extends NodeVisitorAbstract +{ + /** @var callable Filter callback */ + protected $filterCallback; + /** @var Node[] Found nodes */ + protected $foundNodes; + + public function __construct(callable $filterCallback) { + $this->filterCallback = $filterCallback; + } + + /** + * Get found nodes satisfying the filter callback. + * + * Nodes are returned in pre-order. + * + * @return Node[] Found nodes + */ + public function getFoundNodes() : array { + return $this->foundNodes; + } + + public function beforeTraverse(array $nodes) { + $this->foundNodes = []; + + return null; + } + + public function enterNode(Node $node) { + $filterCallback = $this->filterCallback; + if ($filterCallback($node)) { + $this->foundNodes[] = $node; + } + + return null; + } +} |