Phan\Language\FQSEN\FullyQualifiedFunctionName::isClosure PHP Метод

public isClosure ( ) : boolean
Результат	boolean	True if this FQSEN represents a closure

    public function isClosure() : bool
    {
        return preg_match('/^closure_/', $this->getName()) === 1;
    }

FullyQualifiedFunctionName