checkAnnotations example

$refl = new \ReflectionClass($class);
            if (null === $file && $refl->isInternal()) {
                return;
            }
            $name = $refl->getName();

            if ($name !== $class && 0 === strcasecmp($name, $class)) {
                throw new \RuntimeException(sprintf('Case mismatch between loaded and declared class names: "%s" vs "%s".', $class, $name));
            }

            $deprecations = $this->checkAnnotations($refl, $name);

            foreach ($deprecations as $message) {
                @trigger_error($message, \E_USER_DEPRECATED);
            }
        }

        if (!$file) {
            return;
        }

        if (!$exists) {
            

$refl = new \ReflectionClass($class);
            if (null === $file && $refl->isInternal()) {
                return;
            }
            $name = $refl->getName();

            if ($name !== $class && 0 === strcasecmp($name, $class)) {
                throw new \RuntimeException(sprintf('Case mismatch between loaded and declared class names: "%s" vs "%s".', $class, $name));
            }

            $deprecations = $this->checkAnnotations($refl, $name);

            foreach ($deprecations as $message) {
                @trigger_error($message, \E_USER_DEPRECATED);
            }
        }

        if (!$file) {
            return;
        }

        if (!$exists) {