Symfony\Component\ClassLoader\ClassCollectionLoader::computeTraitDeps PHP Method

    private static function computeTraitDeps(\ReflectionClass $class)
    {
        $traits = $class->getTraits();
        $deps = array($class->getName() => $traits);
        while ($trait = array_pop($traits)) {
            if ($trait->isUserDefined() && !isset(self::$seen[$trait->getName()])) {
                self::$seen[$trait->getName()] = true;
                $traitDeps = $trait->getTraits();
                $deps[$trait->getName()] = $traitDeps;
                $traits = array_merge($traits, $traitDeps);
            }
        }
        return $deps;
    }