class About_Pos::Enum
Public Class Methods
new(dir, arr)
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# File lib/about_pos.rb, line 11 def initialize dir, arr @arr = arr if dir == :forward @real_index = 0 else @real_index = (@arr.size - 1) - 0 end @meta = Meta.new(dir, @real_index, arr) end
Public Instance Methods
each() { |value, real_index, meta| ... }
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# File lib/about_pos.rb, line 22 def each return nil if @arr.empty? has_next = false begin result = yield @meta.value, @meta.real_index, @meta has_next = @meta.next? if has_next @meta.next! end end while has_next end