Avoid creating unnecessary Twig_Markup instances #638
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…falsiness of empty output
fabpot
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Feb 18, 2012
Commits ------- e4590d0 Avoid creating unnecessary Twig_Markup instances, allows testing for falsiness of empty output Discussion ---------- Avoid creating unnecessary Twig_Markup instances This allows testing for falsiness of an empty output: ```jinja {% set foo %}{% block lala %}{% endblock %}{% endset %} {% if foo %} some output with {{ foo }} {% endif %} ``` Currently this requires `{% if foo|length %}` since the set tag will always return a Twig_Markup.
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This allows testing for falsiness of an empty output:
Currently this requires
{% if foo|length %}since the set tag will always return a Twig_Markup.