schmittjoh/twig.js — pull request #27 by jonathaningram (2012-04-04 00:15:01+00:00)
Title: Fixes #10 - is not null expression missing brackets

I believe this is a simple fix - mirrors Twig's compiler exactly:

```php
raw('(null === ')
->subcompile($this->getNode('node'))
->raw(')')
;
}
}
```