Sha256: 72304283d21032ec895775a9a1c8161b1e012536656c549686fdf6821e1aa2aa
Contents?: true
Size: 584 Bytes
Versions: 30
Compression:
Stored size: 584 Bytes
Contents
# frozen_string_literal: true
module Gem
class List
include Enumerable
attr_accessor :value, :tail
def initialize(value = nil, tail = nil)
@value = value
@tail = tail
end
def each
n = self
while n
yield n.value
n = n.tail
end
end
def to_a
super.reverse
end
def prepend(value)
List.new value, self
end
def pretty_print q # :nodoc:
q.pp to_a
end
def self.prepend(list, value)
return List.new(value) unless list
List.new value, list
end
end
end
Version data entries
30 entries across 30 versions & 2 rubygems