class TFG::Support::Sequence

Attributes

first[RW]
generator[RW]
previous[RW]

Public Class Methods

new(first, generator=nil, &block) click to toggle source
# File lib/tfg/support/sequence.rb, line 4
def initialize(first, generator=nil, &block)
  self.first = first
  self.generator = generator || block
end

Public Instance Methods

next() click to toggle source
# File lib/tfg/support/sequence.rb, line 9
def next
  if previous
    self.previous = generator.call(previous)
  else
    self.previous = first
  end
end