Class: Infobar::FIFO

Inherits:
Object show all
Includes:
Enumerable
Defined in:
lib/infobar/fifo.rb

Instance Method Summary collapse

Constructor Details

#initialize(n) ⇒ FIFO

Returns a new instance of FIFO.



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# File 'lib/infobar/fifo.rb', line 4

def initialize(n)
  @n = n
  clear
end

Instance Method Details

#<<(value) ⇒ Object 



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# File 'lib/infobar/fifo.rb', line 13

def <<(value)
  @i += 1
  if @i > @n
    @values.shift
    @i -= 1
  end
  @values.push(value)
  self
end

#clear ⇒ Object 



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# File 'lib/infobar/fifo.rb', line 34

def clear
  @i = 0
  @values = []
  self
end

#each(&block) ⇒ Object 



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# File 'lib/infobar/fifo.rb', line 23

def each(&block)
  @values.each(&block)
  self
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/infobar/fifo.rb', line 28

def empty?
  @i.zero?
end

#max_size ⇒ Object 



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# File 'lib/infobar/fifo.rb', line 9

def max_size
  @n
end