> * > */ private static array $handlers = []; public function __construct() { self::$handlers = []; $this->registerClass(PdoStatementSetFetchMode::class); } /** * @param class-string $class */ public function registerClass(string $class): void { if (is_subclass_of($class, MethodParamsProviderInterface::class, true)) { $callable = Closure::fromCallable([$class, 'getMethodParams']); foreach ($class::getClassLikeNames() as $fq_classlike_name) { $this->registerClosure($fq_classlike_name, $callable); } } } /** * @param Closure(MethodParamsProviderEvent): ?array $c */ public function registerClosure(string $fq_classlike_name, Closure $c): void { self::$handlers[strtolower($fq_classlike_name)][] = $c; } public function has(string $fq_classlike_name): bool { return isset(self::$handlers[strtolower($fq_classlike_name)]); } /** * @param ?list $call_args * @return ?list */ public function getMethodParams( string $fq_classlike_name, string $method_name_lowercase, ?array $call_args = null, ?StatementsSource $statements_source = null, ?Context $context = null, ?CodeLocation $code_location = null ): ?array { foreach (self::$handlers[strtolower($fq_classlike_name)] ?? [] as $class_handler) { $event = new MethodParamsProviderEvent( $fq_classlike_name, $method_name_lowercase, $call_args, $statements_source, $context, $code_location, ); $result = $class_handler($event); if ($result !== null) { return array_values($result); } } return null; } }