These are similar to the function literals from Clojure (also Fennel), and should make short functions for maps, filters, etc. easier to write.
A consistent style should help with contributors and readability. We use astyle as the formatter as can make a pretty good approximation of the current style and my preferred style. Astyle can be found at http://astyle.sourceforge.net/astyle.html
only code that goes into final binary).