Fail to display enums

[tardypad]

I'm trying to use an enum in data structures as in

## Data structures

### Flight (object)

+ status : `AR` (Flight status, required, nullable) - Flight status code

### Flight status (enum)

+ AR (string) - Arrived
+ DP (string) - Departed

This results in a long stacktrace of errors being displayed

[SMillerDev]

Can you post the stacktrace?

[tardypad]

I got many lines like this

PHP Notice: Trying to get property of non-object in phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Model/DataStructureElement.php on line 82 
PHP Stack trace: 
PHP 1. {main}() /usr/local/bin/php-drafter:0 
PHP 2. require_once() /usr/local/bin/php-drafter:47 
PHP 3. PHPDraft\Parse\JsonToHTML->get_html() phar:///usr/local/bin/php-drafter/phpdraft/index.php:24 
PHP 4. PHPDraft\Out\TemplateGenerator->get() phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Parse/JsonToHTML.php:55 
PHP 5. PHPDraft\Model\Category->parse() phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Out/TemplateGenerator.php:106 
PHP 6. PHPDraft\Model\DataStructureElement->parse() phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Model/Category.php:41 
PHP 7. PHPDraft\Model\DataStructureElement->parse() phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Model/DataStructureElement.php:76 
PHP 8. PHPDraft\Model\DataStructureElement->parse() phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Model/DataStructureElement.php:76 
PHP Notice: Trying to get property of non-object in phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Model/DataStructureElement.php on line 82 
PHP Stack trace: 
PHP 1. {main}() /usr/local/bin/php-drafter:0 
PHP 2. require_once() /usr/local/bin/php-drafter:47 
PHP 3. PHPDraft\Parse\JsonToHTML->get_html() phar:///usr/local/bin/php-drafter/phpdraft/index.php:24 
PHP 4. PHPDraft\Out\TemplateGenerator->get() phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Parse/JsonToHTML.php:55 
PHP 5. PHPDraft\Model\Category->parse() phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Out/TemplateGenerator.php:106 
PHP 6. PHPDraft\Model\DataStructureElement->parse() phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Model/Category.php:41 
PHP 7. PHPDraft\Model\DataStructureElement->parse() phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Model/DataStructureElement.php:76 
PHP 8. PHPDraft\Model\DataStructureElement->parse() phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Model/DataStructureElement.php:76 
PHP Notice: Trying to get property of non-object in phar:///usr/local/bin/php-drafter/phpdraft/src/PHPDraft/Model/DataStructureElement.php on line 83