Class: SetPartition::Generator

Inherits:
Object
  • Object
show all
Defined in:
lib/set_partition/generator.rb

Direct Known Subclasses

FixedGenerator

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(length) ⇒ Generator

Returns a new instance of Generator.



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# File 'lib/set_partition/generator.rb', line 5

def initialize length
  @length = length
  initialize_first
  initialize_last
  start
end

Instance Attribute Details

#current ⇒ Object (readonly)

Returns the value of attribute current.



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# File 'lib/set_partition/generator.rb', line 3

def current
  @current
end

Instance Method Details

#end ⇒ Object 



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# File 'lib/set_partition/generator.rb', line 18

def end
  @current = @last.dup
  @maximum = @last.dup
end

#length ⇒ Object 



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# File 'lib/set_partition/generator.rb', line 36

def length
  partition_length
end

#next ⇒ Object 



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# File 'lib/set_partition/generator.rb', line 23

def next
  return if @current == @last
  next_partition
  @current
end

#prev ⇒ Object Also known as: previous 



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# File 'lib/set_partition/generator.rb', line 29

def prev
  return if @current == @first
  previous_partition
  @current
end

#start ⇒ Object Also known as: rewind 



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# File 'lib/set_partition/generator.rb', line 12

def start
  @current = @first.dup
  @maximum = @first.dup
end