Module: Iterable

Included in:
Array
Defined in:
lib/iterable.rb

Instance Method Summary collapse

Instance Method Details

#done? ⇒ Boolean

TODO: consider a module inclusion time solution to “count rescue size”, for performance sake

Returns:

  • (Boolean) 


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# File 'lib/iterable.rb', line 22

def done?
  @next_index && (@next_index == (count rescue size)-1)
end

#next ⇒ Object 



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# File 'lib/iterable.rb', line 7

def next
  restart unless defined? @next_index
  raw_next
end

#raw_next ⇒ Object

Raises:

  • (RangeError) 


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# File 'lib/iterable.rb', line 12

def raw_next
  raise RangeError, 'there is no next element, please restart' if done?
  self[@next_index += 1]
end

#restart ⇒ Object 



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# File 'lib/iterable.rb', line 2

def restart
  @next_index = -1
  self
end

#restart_and_raw_next ⇒ Object 



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# File 'lib/iterable.rb', line 17

def restart_and_raw_next
  self[@next_index = 0]
end