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<?php |
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namespace ComposerRequireChecker\NodeVisitor; |
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use FilesystemIterator; |
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use InvalidArgumentException; |
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use PhpParser\Node; |
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use PhpParser\Node\Expr; |
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use PhpParser\Node\Expr\BinaryOp\Concat; |
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use PhpParser\Node\Expr\ConstFetch; |
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use PhpParser\Node\Expr\Include_; |
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use PhpParser\Node\Expr\Variable; |
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use PhpParser\Node\Scalar\MagicConst\Dir; |
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use PhpParser\Node\Scalar\MagicConst\File; |
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use PhpParser\Node\Scalar\String_; |
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use PhpParser\NodeVisitorAbstract; |
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use RecursiveDirectoryIterator; |
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use RecursiveIteratorIterator; |
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final class IncludeCollector extends NodeVisitorAbstract |
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{ |
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/** |
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* @var Expr[] |
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*/ |
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private $included = []; |
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/** |
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* {@inheritDoc} |
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*/ |
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public function beforeTraverse(array $nodes) |
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{ |
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$this->included = []; |
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return parent::beforeTraverse($nodes); |
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} |
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/** |
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* @param string $file |
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* @return string[] |
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*/ |
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public function getIncluded(string $file): array |
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{ |
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$included = []; |
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foreach ($this->included as $exp) { |
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try { |
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$this->computePath($included, $this->processIncludePath($exp, $file), $file); |
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} catch (InvalidArgumentException $exception) { |
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// not sure there's anything sensible to do here |
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} |
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} |
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return $included; |
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} |
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/** |
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* @param array $included |
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* @param string $path |
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* @param string $self |
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* @return void |
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*/ |
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private function computePath(array &$included, string $path, string $self) |
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{ |
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if (!preg_match('#^([A-Z]:)?/#i', str_replace('\\', '/', $path))) { |
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$path = dirname($self) . '/' . $path; |
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} |
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if (false === strpos($path, '{var}')) { |
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$included[] = $path; |
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return; |
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} |
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$parts = explode('{var}', $path); |
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$regex = []; |
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foreach ($parts as $part) { |
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$regex[] = preg_quote(str_replace('\\', '/', $part), '/'); |
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} |
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$regex = '/^' . implode('.+', $regex) . '$/'; |
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$self = str_replace('\\', '/', $self); |
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foreach (new RecursiveIteratorIterator( |
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new RecursiveDirectoryIterator( |
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$parts[0], |
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FilesystemIterator::CURRENT_AS_PATHNAME | FilesystemIterator::SKIP_DOTS |
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) |
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) as $file) { |
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$rfile = str_replace('\\', '/', $file); |
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if ($rfile !== $self && preg_match('/\\.php$/i', $rfile) && preg_match($regex, $rfile)) { |
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$included[] = $file; |
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} |
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} |
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} |
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/** |
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* @param string|Expr $exp |
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* @param string $file |
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* @return string |
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* @throws InvalidArgumentException |
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*/ |
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private function processIncludePath($exp, string $file): string |
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{ |
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if (is_string($exp)) { |
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return $exp; |
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} |
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if ($exp instanceof Concat) { |
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return $this->processIncludePath($exp->left, $file) . $this->processIncludePath($exp->right, $file); |
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} |
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if ($exp instanceof Dir) { |
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return dirname($file); |
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} |
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if ($exp instanceof File) { |
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return $file; |
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} |
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if ($exp instanceof ConstFetch && "$exp->name" === 'DIRECTORY_SEPARATOR') { |
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return DIRECTORY_SEPARATOR; |
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} |
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if ($exp instanceof String_) { |
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return $exp->value; |
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} |
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if ($exp instanceof Variable || $exp instanceof ConstFetch) { |
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return '{var}'; |
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} |
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throw new InvalidArgumentException('can\'t yet handle ' . $exp->getType()); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function enterNode(Node $node) |
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{ |
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if ($node instanceof Include_) { |
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$this->included[] = $node->expr; |
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} |
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} |
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} |
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maglnet /
ComposerRequireChecker
This check looks for function or method calls that always return null and whose return value is used.
The method
getObject()can return nothing but null, so it makes no sense to use the return value.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.