Class: Fear::Left

Inherits:
Object
  • Object
show all
Includes:
Either
Defined in:
lib/fear/left.rb

Instance Method Summary collapse

Methods included from Either

#any?, #each, #flat_map, #get_or_else, #include?, #initialize, #map, #to_a, #to_option

Instance Method Details

#join_left ⇒ Either

Raises:

  • (TypeError) 


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# File 'lib/fear/left.rb', line 52

def join_left
  value.tap do |v|
    Utils.assert_type!(v, Either)
  end
end

#join_right ⇒ self 



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# File 'lib/fear/left.rb', line 46

def join_right
  self
end

#left? ⇒ true Also known as: failure? 



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# File 'lib/fear/left.rb', line 13

def left?
  true
end

#reduce(reduce_left, _) ⇒ any 



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# File 'lib/fear/left.rb', line 41

def reduce(reduce_left, _)
  reduce_left.call(value)
end

#reject ⇒ Left 



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# File 'lib/fear/left.rb', line 30

def reject
  self
end

#right? ⇒ false Also known as: success? 



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# File 'lib/fear/left.rb', line 7

def right?
  false
end

#select ⇒ Left 



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# File 'lib/fear/left.rb', line 25

def select
  self
end

#select_or_else(default) ⇒ Either 



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# File 'lib/fear/left.rb', line 20

def select_or_else(default)
  Left.new(Utils.return_or_call_proc(default))
end

#swap ⇒ Right 



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# File 'lib/fear/left.rb', line 35

def swap
  Right.new(value)
end