# An MEntity matched from a ModelIndex
#
# Each match has a `score`. The score should be seen as the distance of
# the match from the query. In other words, the lowest is the score, the more
# relevant is the match.
class IndexMatch
	super Comparable

	redef type OTHER: IndexMatch

	# MEntity matches
	var mentity: MEntity

	# Score allocated by the search method
	#
	# A lowest score means a more relevant match.
	#
	# Scores values are arbitrary, the meaning of `10` vs `2000` really depends
	# on the search method producing the match and the comparators used to sort
	# the matches.
	# The only universal rule is: low score = relevance.
	var score: Int is writable

	# By default matches are compared only on their score
	redef fun <=>(o) do return score <=> o.score

	redef fun to_s do return "{mentity} ({score})"
end