Class: Unit::BaseUnit

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

Direct Known Subclasses

ComposedUnit, SimpleUnit

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.once(*methods) ⇒ Object

:nodoc:



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# File 'lib/unitmanager/simple_unit.rb', line 26

def once (*methods) #:nodoc:
  methods.each {|method| 
   
    module_eval <<-"end;"
      alias_method :__#{method.to_i}__ , :#{method.to_s}

      def #{method.to_s}(*args, &block)
        if defined? @__#{method.to_i}__ 
          @__#{method.to_i}__ 
        else
          @__#{method.to_i}__ ||= __#{method.to_i}__(*args, &block)
        end  
      end
      private :__#{method.to_i}__
      
    end;
    
  }
end

Instance Method Details

#[](symbol) ⇒ Object

This method allows to retrieve symbolic portions of the unit definition. Supported values are: :dividends - returns an array of symbols representing dividend part of 

unit definition.

:divisors - returns an array of symbols representing divisor part of 

unit definition.

:string - string representation of the unit of measure.



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# File 'lib/unitmanager/simple_unit.rb', line 56

def [] (symbol)
  unit_sym[symbol]
end