Class: Fear::Right

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

Constant Summary collapse

EXTRACTOR = 
proc do |either|
  if Fear::Right === either
    Fear.some([either.right_value])
  else
    Fear.none
  end
end

Instance Method Summary collapse

Methods included from Either

#==, #any?, #deconstruct, #each, #flat_map, #get_or_else, #include?, #initialize, #inspect, #map, #match, matcher, #or_else, #to_option

Instance Method Details

#join_left ⇒ self 



84
85
86
 
# File 'lib/fear/right.rb', line 84

def join_left
  self
end

#join_right ⇒ Either

Raises:

  • (TypeError) 


77
78
79
80
81
 
# File 'lib/fear/right.rb', line 77

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

#left? ⇒ false Also known as: failure? 



31
32
33
 
# File 'lib/fear/right.rb', line 31

def left?
  false
end

#reduce(_reduce_left, reduce_right) ⇒ any 



71
72
73
 
# File 'lib/fear/right.rb', line 71

def reduce(_reduce_left, reduce_right)
  reduce_right.(value)
end

#reject ⇒ Either 



56
57
58
59
60
61
62
 
# File 'lib/fear/right.rb', line 56

def reject
  if yield(value)
    Left.new(value)
  else
    self
  end
end

#right? ⇒ true Also known as: success? 



25
26
27
 
# File 'lib/fear/right.rb', line 25

def right?
  true
end

#right_value ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



20
21
22
 
# File 'lib/fear/right.rb', line 20

def right_value
  value
end

#select ⇒ Either 



47
48
49
50
51
52
53
 
# File 'lib/fear/right.rb', line 47

def select
  if yield(value)
    self
  else
    Left.new(value)
  end
end

#select_or_else(default) ⇒ Either 



38
39
40
41
42
43
44
 
# File 'lib/fear/right.rb', line 38

def select_or_else(default)
  if yield(value)
    self
  else
    Left.new(Utils.return_or_call_proc(default))
  end
end

#swap ⇒ Left 



65
66
67
 
# File 'lib/fear/right.rb', line 65

def swap
  Left.new(value)
end