Class: Alchemist::CompoundMeasurement

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/alchemist/compound_measurement.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(numerator) ⇒ CompoundMeasurement

Returns a new instance of CompoundMeasurement.



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# File 'lib/alchemist/compound_measurement.rb', line 6

def initialize(numerator)
  @coefficient = numerator.value
  @numerators = [numerator / @coefficient]
  @denominators = []
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *attrs, &block) ⇒ Object (private) 



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# File 'lib/alchemist/compound_measurement.rb', line 69

def method_missing(method, *attrs, &block)
  if Alchemist.library.measurement_for(method)
    @denominators << Alchemist.measure(1, method)
    consolidate
  end
end

Instance Attribute Details

#denominators ⇒ Object

Returns the value of attribute denominators.



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# File 'lib/alchemist/compound_measurement.rb', line 4

def denominators
  @denominators
end

#numerators ⇒ Object

Returns the value of attribute numerators.



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# File 'lib/alchemist/compound_measurement.rb', line 4

def numerators
  @numerators
end

Instance Method Details

#*(value) ⇒ Object 



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# File 'lib/alchemist/compound_measurement.rb', line 20

def *(value)
  case value
  when Numeric
     @coefficient *= value
     self
  when Alchemist::Measurement
    @numerators << value
    return consolidate
  end
end

#<=>(other) ⇒ Object 



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# File 'lib/alchemist/compound_measurement.rb', line 12

def <=> other
  if @coefficient == other.coefficient
    [@numerators, @denominators] <=> [other.numerators, other.denominators]
  else
    @coefficient <=> other.coefficient
  end
end