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<?php |
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/** |
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* This program is free software. It comes without any warranty, to |
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* the extent permitted by applicable law. You can redistribute it |
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* and/or modify it under the terms of the Do What The Fuck You Want |
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* To Public License, Version 2, as published by Sam Hocevar. See |
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* http://www.wtfpl.net/ for more details. |
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*/ |
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declare(strict_types = 1); |
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namespace hanneskod\classtools\Transformer\Action; |
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use hanneskod\classtools\Name; |
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use hanneskod\classtools\Exception\RuntimeException; |
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use PhpParser\NodeVisitorAbstract; |
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use PhpParser\Node; |
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use PhpParser\Node\Name\FullyQualified; |
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/** |
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* Search namespaces for definied classes |
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* |
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* Crawl namespaces for classes that were wrongly put in namespace by NameResolver |
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* (if code is moved to the namespace before parsing takes place). |
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* |
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* @author Hannes Forsgård <[email protected]> |
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*/ |
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class NamespaceCrawler extends NodeVisitorAbstract |
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{ |
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/** |
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* @var Name[] List of namespaces to test for each undefined name |
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*/ |
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private $search = []; |
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/** |
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* @var Name[] List of namespaces that will be allowed even if not defined |
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*/ |
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private $whitelist = []; |
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/** |
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* Search namespaces for definied classes |
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* |
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* @param string[] $search List of namespaces to test for each undefined name |
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* @param string[] $whitelist namespaces that will be allowed even if not defined |
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*/ |
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public function __construct(array $search, array $whitelist = array()) |
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{ |
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foreach ($search as $namespace) { |
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$this->search[] = new Name((string)$namespace); |
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} |
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foreach ($whitelist as $namespace) { |
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$this->whitelist[] = new Name((string)$namespace); |
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} |
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} |
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/** |
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* Resolve unexisting names by searching specified namespaces |
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* |
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* @throws RuntimeException If name can not be resolved |
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*/ |
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public function leaveNode(Node $node) |
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{ |
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if ($node instanceof FullyQualified) { |
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$name = new Name((string)$node); |
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$whitelisted = $this->isWhitelisted($name); |
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if (!$name->isDefined(!$whitelisted)) { |
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/** @var Name $namespace */ |
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foreach ($this->search as $namespace) { |
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$newName = new Name("{$namespace}\\{$node->getLast()}"); |
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if ($newName->isDefined()) { |
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return $newName->createNode(); |
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} |
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} |
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if (!$whitelisted) { |
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throw new RuntimeException("Unable to resolve class <$node>."); |
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} |
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} |
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} |
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} |
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/** |
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* Check if name is whitelisted |
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* |
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* @param Name $name |
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* @return bool |
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*/ |
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public function isWhitelisted(Name $name): bool |
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{ |
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/** @var Name $namespace */ |
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foreach ($this->whitelist as $namespace) { |
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if ($name->inNamespace($namespace)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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hanneskod /
classtools
