Class: Variable

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(x) ⇒ Variable

Returns a new instance of Variable.



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# File 'lib/chebyruby/variable.rb', line 6

def initialize(x)
  @x = x
  @neg = false
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args) ⇒ Object 



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# File 'lib/chebyruby/variable.rb', line 11

def method_missing(method, *args)
  Expression.new(self, method, Variable.new(args[0]))
end

Instance Attribute Details

#neg ⇒ Object

Returns the value of attribute neg.



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# File 'lib/chebyruby/variable.rb', line 4

def neg
  @neg
end

#x ⇒ Object

Returns the value of attribute x.



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# File 'lib/chebyruby/variable.rb', line 4

def x
  @x
end

Instance Method Details

#-@ ⇒ Object 



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# File 'lib/chebyruby/variable.rb', line 23

def -@
  @neg = true
end

#parseable ⇒ Object 



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# File 'lib/chebyruby/variable.rb', line 39

def parseable
  to_enum.map do |i|
    if Array === i
      i.parseable
    elsif Symbol === i
      i
    else
      i.x
    end
  end
end

#right ⇒ Object 



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# File 'lib/chebyruby/variable.rb', line 31

def right
  nil
end

#to_a ⇒ Object Also known as: to_ary 



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# File 'lib/chebyruby/variable.rb', line 15

def to_a
  if x.class == Array
    x
  else
    [x]
  end
end

#to_enum ⇒ Object 



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# File 'lib/chebyruby/variable.rb', line 27

def to_enum
  Array.new(to_ary).to_enum
end

#to_s ⇒ Object 



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# File 'lib/chebyruby/variable.rb', line 35

def to_s
  "#{x}"
end