Marcel M. Cary 4100f8d641 Fix "sort" filter on empty array to return empty array ...

When sorting an empty array with the "sort" filter, it returns nil
instead of [].  This confuses subsequent filters in the chain that
expect an array.  For example, when followed by the "map" filter, it
produces an array containing one nil element: [nil].

I could special-case the nil return value, but that would be more
cumbersome than making sure "sort" always returns an array.

Add a case to the "sort" method to return [] if the array is empty,
before performing any checks on ary.first that assume a non-empty array.

There is still a danger of returning nil if the first item in the array
is nil and it is non-empty, but I'm not sure how better to handle that
case.

Apply a similar fix to sort_natural, uniq, and compact filters.

2015-09-29 10:24:31 -07:00

..

liquid

Fix "sort" filter on empty array to return empty array

2015-09-29 10:24:31 -07:00

liquid.rb

Implement line numbers without the Liquid::Token class.

2015-07-08 19:21:59 -04:00