Class: Measurement::Unit

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby-measurement/unit.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, &block) ⇒ Unit

Returns a new instance of Unit.



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# File 'lib/ruby-measurement/unit.rb', line 7

def initialize(name, &block)
  @name = name.to_s
  @aliases = Set.new
  @conversions = {}
  
  self.alias(name)
  block.call(self) if block_given?
end

Instance Attribute Details

#aliases ⇒ Object (readonly)

Returns the value of attribute aliases.



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# File 'lib/ruby-measurement/unit.rb', line 5

def aliases
  @aliases
end

#conversions ⇒ Object (readonly)

Returns the value of attribute conversions.



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# File 'lib/ruby-measurement/unit.rb', line 5

def conversions
  @conversions
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/ruby-measurement/unit.rb', line 5

def name
  @name
end

Instance Method Details

#==(obj) ⇒ Object 



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# File 'lib/ruby-measurement/unit.rb', line 39

def ==(obj)
  obj.kind_of?(self.class) && hash == obj.hash
end

#alias(*args) ⇒ Object 



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# File 'lib/ruby-measurement/unit.rb', line 16

def alias(*args)
  args.each { |arg| @aliases << arg.to_s }
end

#conversion(name) ⇒ Object 



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# File 'lib/ruby-measurement/unit.rb', line 24

def conversion(name)
  Measurement.unit(name).aliases.each do |a|
    conversion = @conversions[a.to_s]
    return conversion if conversion
  end
end

#convert_to(name, &block) ⇒ Object 



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# File 'lib/ruby-measurement/unit.rb', line 20

def convert_to(name, &block)
  @conversions[name.to_s] = block
end

#inspect ⇒ Object 



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# File 'lib/ruby-measurement/unit.rb', line 31

def inspect
  to_s
end

#to_s ⇒ Object 



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# File 'lib/ruby-measurement/unit.rb', line 35

def to_s
  name
end