Sha256: f0633221bc0aa2cd3b4870040fd3bec2e26c8d02b9fb4d0e8065948bea11f081
Contents?: true
Size: 628 Bytes
Versions: 8
Compression:
Stored size: 628 Bytes
Contents
module Pairs
private
def pair(first, second)
Pair.new(first, second)
end
def first
->(pair) { pair.first }
end
def second
->(pair) { pair.second }
end
end
class Pair
include Comparable
def initialize(first, second)
@first = -> { first }
@second = -> { second }
end
def first
@first.()
end
def second
@second.()
end
def enumerator
Enumerator.new { |y|
y << first
y << second
raise StopIteration.new
}
end
def <=>(other)
(first <=> other.first) <=> (second <=> other.second)
end
def to_s
"(#{first}, #{second})"
end
end
Version data entries
8 entries across 8 versions & 1 rubygems