id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
20744	Evaluate MapCSS expression without array creation	simon04	simon04	"All MapCSS from `org.openstreetmap.josm.gui.mappaint.mapcss.Functions` are evaluated using reflection and require an array to evaluate the arguments (see `org.openstreetmap.josm.gui.mappaint.mapcss.ExpressionFactory.ParameterFunction#evaluate`). 

I propose to replace the `ParameterFunction` reflection magic with explicitly registered MapCSS function using lambda expressions.

Here's the patch: https://github.com/simon04/josm/commit/5a571a81b69c1859a98aed2cccd8117d4978bcf0"	enhancement	closed	normal	21.04	Core		fixed	mapcss reflection lambda java8	Don-vip Klumbumbus