lib/head_music/style/mark.rb in head_music-0.17.0 vs lib/head_music/style/mark.rb in head_music-0.18.0

@@ -1,22 +1,28 @@
+# frozen_string_literal: true
+
+# A mark is a fragment of music with an optional fitness score assigned.
+# Marks are collected into annotations which comment on the fragments.
 class HeadMusic::Style::Mark
   attr_reader :start_position, :end_position, :placements, :fitness
 
   def self.for(placement, fitness: nil)
     new(placement.position, placement.next_position, placements: [placement], fitness: fitness)
   end
 
   def self.for_all(placements, fitness: nil)
     placements = [placements].flatten.compact
-    return [] if placements.length == 0
-    start_position = placements.map { |placement| placement.position }.sort.first
-    end_position = placements.map { |placement| placement.next_position }.sort.last
+    return [] if placements.empty?
+    start_position = placements.map(&:position).sort.first
+    end_position = placements.map(&:next_position).sort.last
     new(start_position, end_position, placements: placements, fitness: fitness)
   end
 
   def self.for_each(placements, fitness: nil)
     placements = [placements].flatten
-    placements.map { |placement| new(placement.position, placement.next_position, placements: placement, fitness: fitness) }
+    placements.map do |placement|
+      new(placement.position, placement.next_position, placements: placement, fitness: fitness)
+    end
   end
 
   def initialize(start_position, end_position, placements: [], fitness: nil)
     @start_position = start_position
     @end_position = end_position