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<?php
namespace Digia\GraphQL\Language\AST\Visitor;
use Digia\GraphQL\Language\AST\Node\NodeInterface;
class Visitor extends AbstractVisitor
{
/**
* @var callable|null
*/
protected $enterFunction;
protected $leaveFunction;
* TestableVisitor constructor.
* @param callable|null $enterFunction
* @param callable|null $leaveFunction
public function __construct(?callable $enterFunction = null, ?callable $leaveFunction = null)
$this->enterFunction = $enterFunction;
$this->leaveFunction = $leaveFunction;
}
* @inheritdoc
public function enterNode(
NodeInterface $node,
$key = null,
?NodeInterface $parent = null,
array $path = []
): ?NodeInterface {
return null !== $this->enterFunction
? call_user_func($this->enterFunction, $node, $key, $parent, $path)
: $node;
public function leaveNode(
return null !== $this->leaveFunction
? call_user_func($this->leaveFunction, $node, $key, $parent, $path)
digiaonline /
graphql-php
