Class: KitchenMeasures::Measure

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

Defined Under Namespace

Classes: Unitless

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(quantity, unit) ⇒ Measure

Returns a new instance of Measure.



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# File 'lib/kitchen_measures/measure.rb', line 14

def initialize(quantity, unit)
  @quantity = quantity
  @unit = unit or raise ArgumentError("Missing unit")
end

Class Method Details

.with_unit(quantity, unit) ⇒ Object 



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# File 'lib/kitchen_measures/measure.rb', line 19

def self.with_unit(quantity, unit)
  new(quantity, unit)
end

.without_unit(quantity) ⇒ Object 



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# File 'lib/kitchen_measures/measure.rb', line 23

def self.without_unit(quantity)
  new(quantity, Unitless.instance)
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/kitchen_measures/measure.rb', line 39

def <=>(other)
  to_unitwise <=> other.to_unitwise
end

#==(other) ⇒ Object 



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# File 'lib/kitchen_measures/measure.rb', line 31

def ==(other)
  if unitless?
    quantity == other.quantity && unit == other.unit
  else
    to_unitwise == other.to_unitwise
  end
end

#to_s ⇒ Object 



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# File 'lib/kitchen_measures/measure.rb', line 27

def to_s
  [quantity, unit].join(" ").strip
end

#unitless? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/kitchen_measures/measure.rb', line 43

def unitless?
  unit == Unitless.instance
end