mageekguy\atoum\mock\generator::getReturnType PHP Method

    protected function getReturnType(\reflectionMethod $method)
    {
        $returnTypeCode = '';
        if ($method->getName() !== '__construct' && method_exists($method, 'hasReturnType') && $method->hasReturnType()) {
            switch (true) {
                case (string) $method->getReturnType() === 'self':
                    $returnTypeCode = ': \\' . $method->getDeclaringClass()->getName();
                    break;
                case (string) $method->getReturnType() === 'parent':
                    $returnTypeCode = ': \\' . $method->getDeclaringClass()->getParentClass()->getName();
                    break;
                case $method->getReturnType()->isBuiltin():
                    $returnTypeCode = ': ' . $method->getReturnType();
                    break;
                default:
                    $returnTypeCode = ': \\' . $method->getReturnType();
            }
        }
        return $returnTypeCode;
    }