File "NamespaceAwarePass.php"
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<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2023 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Psy\CodeCleaner;
use PhpParser\Node;
use PhpParser\Node\Name;
use PhpParser\Node\Name\FullyQualified as FullyQualifiedName;
use PhpParser\Node\Stmt\Namespace_;
/**
* Abstract namespace-aware code cleaner pass.
*/
abstract class NamespaceAwarePass extends CodeCleanerPass
{
protected array $namespace = [];
protected array $currentScope = [];
/**
* @todo should this be final? Extending classes should be sure to either
* use afterTraverse or call parent::beforeTraverse() when overloading.
*
* Reset the namespace and the current scope before beginning analysis
*
* @return Node[]|null Array of nodes
*/
public function beforeTraverse(array $nodes)
{
$this->namespace = [];
$this->currentScope = [];
}
/**
* @todo should this be final? Extending classes should be sure to either use
* leaveNode or call parent::enterNode() when overloading
*
* @param Node $node
*
* @return int|Node|null Replacement node (or special return value)
*/
public function enterNode(Node $node)
{
if ($node instanceof Namespace_) {
$this->namespace = isset($node->name) ? $this->getParts($node->name) : [];
}
}
/**
* Get a fully-qualified name (class, function, interface, etc).
*
* @param mixed $name
*/
protected function getFullyQualifiedName($name): string
{
if ($name instanceof FullyQualifiedName) {
return \implode('\\', $this->getParts($name));
}
if ($name instanceof Name) {
$name = $this->getParts($name);
} elseif (!\is_array($name)) {
$name = [$name];
}
return \implode('\\', \array_merge($this->namespace, $name));
}
/**
* Backwards compatibility shim for PHP-Parser 4.x.
*
* At some point we might want to make $namespace a plain string, to match how Name works?
*/
protected function getParts(Name $name): array
{
return \method_exists($name, 'getParts') ? $name->getParts() : $name->parts;
}
}