nitc :: POSetBucketsColorer :: max_color
# Return the max color used by a class
private fun max_color(holder: H, buckets: Map[H, Set[E]]): Int do
var max = -1
for bucket in buckets[holder] do
if not colors.has_key(bucket) then continue
var color = colors[bucket]
if color > max then max = color
end
return max
end
src/compiler/coloring.nit:548,2--557,4