Class: OrElse::NothingClass

Inherits:
Maybe show all
Includes:
Singleton
Defined in:
lib/or_else/nothing_class.rb

Instance Method Summary collapse

Methods inherited from Maybe

sequence

Instance Method Details

#all? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/or_else/nothing_class.rb', line 42

def all?
  true
end

#any? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/or_else/nothing_class.rb', line 46

def any?
  all?
end

#each ⇒ Object 



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# File 'lib/or_else/nothing_class.rb', line 39

def each
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/or_else/nothing_class.rb', line 19

def empty?
  true
end

#exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/or_else/nothing_class.rb', line 27

def exists?
  !empty?
end

#filter ⇒ Object 



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# File 'lib/or_else/nothing_class.rb', line 15

def filter
  Nothing
end

#flat_map ⇒ Object 



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# File 'lib/or_else/nothing_class.rb', line 11

def flat_map
  Nothing
end

#map ⇒ Object 



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# File 'lib/or_else/nothing_class.rb', line 7

def map
  Nothing
end

#nil? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/or_else/nothing_class.rb', line 23

def nil?
  empty?
end

#or_else ⇒ Object 



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# File 'lib/or_else/nothing_class.rb', line 35

def or_else
  yield
end

#present? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/or_else/nothing_class.rb', line 31

def present?
  exists?
end