Class: NilClass

Inherits:
Object show all
Defined in:
lib/rubylisp/ext.rb

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args, &block) ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 83

def method_missing(name, *args, &block)
  if name[0] == ?c && name[-1] == ?r && (name[1..-2].chars.all? {|e| "ad".include?(e)})
    nil
  else
    super
  end
end

Instance Method Details

#car ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 31

def car
  nil
end

#cdr ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 35

def cdr
  nil
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 51

def empty?
  true
end

#eq?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 15

def eq?(other)
  other.nil?
end

#evaluate(env) ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 23

def evaluate(env)
  nil
end

#evaluate_each(env) ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 27

def evaluate_each(env)
  nil
end

#false? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 7

def false?
  true
end

#function? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 95

def function?
  false
end

#length ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 55

def length
  0
end

#lisp_object? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 107

def lisp_object?
  true
end

#list? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 79

def list?
  true
end

#number? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 67

def number?
  false
end

#object? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 99

def object?
  false
end

#pair? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 75

def pair?
  false
end

#primitive? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 91

def primitive?
  false
end

#print_string ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 19

def print_string
  self.to_s
end

#quoted ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 47

def quoted
  nil
end

#set_car!(s) ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 39

def set_car!(s)
  nil
end

#set_cdr!(s) ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 43

def set_cdr!(s)
  nil
end

#string? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 63

def string?
  false
end

#symbol? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 71

def symbol?
  false
end

#to_s ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 11

def to_s
  "()"
end

#true? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubylisp/ext.rb', line 3

def true?
  false
end

#type ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 103

def type
  :nil
end

#value ⇒ Object 



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# File 'lib/rubylisp/ext.rb', line 59

def value
  nil
end