Class: Bitmap::Value

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(bitmap, value, names) ⇒ Value

Returns a new instance of Value.



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# File 'lib/bitmap.rb', line 15

def initialize (bitmap, value, names)
	@bitmap = bitmap
	@value  = value.to_i
	@names  = names
end

Instance Attribute Details

#bitmap ⇒ Object (readonly)

Returns the value of attribute bitmap.



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# File 'lib/bitmap.rb', line 13

def bitmap
  @bitmap
end

Instance Method Details

#+(*what) ⇒ Object 



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# File 'lib/bitmap.rb', line 33

def + (*what)
	bitmap[*(@names + what.flatten.map {|piece|
		piece.to_a rescue piece
	}).flatten.compact]
end

#-(*what) ⇒ Object 



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# File 'lib/bitmap.rb', line 39

def - (*what)
	bitmap[*(@names - what.flatten.map {|piece|
		piece.to_a rescue piece
	}).flatten.compact]
end

#has?(mask) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bitmap.rb', line 21

def has? (mask)
	if mask.is_a?(Value)
		(@names.to_a & mask.to_a) == mask.to_a
	else
		@names.member?(mask.to_s.to_sym)
	end
end

#to_a ⇒ Object 



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# File 'lib/bitmap.rb', line 29

def to_a
	@names
end

#to_i ⇒ Object 



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# File 'lib/bitmap.rb', line 45

def to_i
	@value
end

#to_s ⇒ Object 



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# File 'lib/bitmap.rb', line 49

def to_s
	to_a.join '|'
end