Class: SumSum

Inherits:
Hash
  • Object
show all
Defined in:
lib/sum_sum.rb,
lib/sum_sum/version.rb

Constant Summary collapse

VERSION = 
"0.0.1"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ SumSum

Returns a new instance of SumSum.



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

def initialize(*args)
  @parent = args.pop if args[-1].is_a?(self.class)
  @name = args.shift
  @args = args.compact.dup
  @count = 0
  super()
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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# File 'lib/sum_sum.rb', line 10

def args
  @args
end

#count ⇒ Object (readonly)

Returns the value of attribute count.



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# File 'lib/sum_sum.rb', line 10

def count
  @count
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/sum_sum.rb', line 10

def name
  @name
end

#parent ⇒ Object (readonly)

Returns the value of attribute parent.



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# File 'lib/sum_sum.rb', line 10

def parent
  @parent
end

Instance Method Details

#add(hash, increase_by = 1) ⇒ Object 



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

def add(hash, increase_by=1)
  key = hash[name]
  @count = @count + increase_by
  unless bottom?
    self[key] ||= SumSum.new(*args, self)
    self[key].add(hash, increase_by)
  end
  self
end

#bottom? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sum_sum.rb', line 40

def bottom?
  name.nil?
end

#inspect ⇒ Object 



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# File 'lib/sum_sum.rb', line 44

def inspect
  bottom? ? "#{count}" : "{#{name}:#{count} #{super.gsub(/^\{|\}$/, "")}}"
end

#root? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sum_sum.rb', line 36

def root?
  parent.nil?
end

#share ⇒ Object 



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

def share
  root? ? 1.0 : count/parent.count.to_f
end

#sort! ⇒ Object 



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# File 'lib/sum_sum.rb', line 26

def sort!
  values.each(&:sort!) unless bottom?
  to_a.tap do |array|
    array.reverse!(&:count)
    clear
    array.each{|k, v| self[k] = v }
  end
  self
end