Class: Lax

Inherits:
Enumerator
  • Object
show all
Defined in:
lib/tzispa/utils/lax.rb

Instance Method Summary collapse

Constructor Details

#initialize(receiver) ⇒ Lax

Returns a new instance of Lax.



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# File 'lib/tzispa/utils/lax.rb', line 9

def initialize(receiver)
  super() do |yielder|
    begin
      receiver.each do |val|
        if block_given?
          yield(yielder, val)
        else
          yielder << val
        end
      end
    rescue StopIteration
    end
  end
end

Instance Method Details

#map(&block) ⇒ Object 



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# File 'lib/tzispa/utils/lax.rb', line 24

def map(&block)
  Lax.new(self) do |yielder, val|
    yielder << block.call(val)
  end
end

#take(n) ⇒ Object 



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# File 'lib/tzispa/utils/lax.rb', line 30

def take(n)
  taken = 0
  Lax.new(self) do |yielder, val|
    if taken < n
      yielder << val
      taken += 1
    else
      raise StopIteration
    end
  end
end