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<?php declare(strict_types=1);
namespace PhpParser\NodeVisitor;
use PhpParser\Node\Stmt\ClassMethod;
use PhpParser\NodeFinder;
use PhpParser\NodeTraverser;
use PhpParser\ParserFactory;
final class ParentConnectingVisitorTest extends \PHPUnit\Framework\TestCase {
public function testConnectsChildNodeToParentNode(): void {
$ast = (new ParserFactory())->createForNewestSupportedVersion()->parse(
'<?php class C { public function m() {} }'
);
$traverser = new NodeTraverser();
$traverser->addVisitor(new ParentConnectingVisitor());
$ast = $traverser->traverse($ast);
$node = (new NodeFinder())->findFirstInstanceof($ast, ClassMethod::class);
$this->assertSame('C', $node->getAttribute('parent')->name->toString());
}
public function testWeakReferences(): void {
$ast = (new ParserFactory())->createForNewestSupportedVersion()->parse(
'<?php class C { public function m() {} }'
);
$traverser = new NodeTraverser();
$traverser->addVisitor(new ParentConnectingVisitor(true));
$ast = $traverser->traverse($ast);
$node = (new NodeFinder())->findFirstInstanceof($ast, ClassMethod::class);
$weakReference = $node->getAttribute('weak_parent');
$this->assertInstanceOf(\WeakReference::class, $weakReference);
$this->assertSame('C', $weakReference->get()->name->toString());
}
}
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