Class: Fear::Success

Inherits:
Object
  • Object
show all
Includes:
RightBiased::Right, Try
Defined in:
lib/fear/success.rb

Constant Summary collapse

EXTRACTOR = 
proc do |try|
  if Fear::Success === try
    Fear.some([try.get])
  else
    Fear.none
  end
end

Instance Method Summary collapse

Methods included from RightBiased::Right

#===, #any?, #each, #get_or_else, #include?, included, #to_option

Methods included from Try

#any?, #each, #get_or_else, #include?, #left_class, #match, matcher, #right_class, #to_option

Constructor Details

#initialize(value) ⇒ Success

Returns a new instance of Success.

Parameters:

  • (any) 

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# File 'lib/fear/success.rb', line 21

def initialize(value)
  @value = value
end

Instance Method Details

#==(other) ⇒ Boolean

Parameters:

  • other (Any)

Returns:

  • (Boolean) 

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# File 'lib/fear/success.rb', line 98

def ==(other)
  other.is_a?(Success) && value == other.value
end

#failure? ⇒ false

Returns:

  • (false) 

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# File 'lib/fear/success.rb', line 36

def failure?
  false
end

#flat_map ⇒ Try

Returns:


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# File 'lib/fear/success.rb', line 85

def flat_map
  super
rescue StandardError => error
  Failure.new(error)
end

#flatten ⇒ Try

Returns:


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

def flatten
  if value.is_a?(Try)
    value.flatten
  else
    self
  end
end

#get ⇒ any

Returns:

  • (any) 

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# File 'lib/fear/success.rb', line 26

def get
  @value
end

#inspect ⇒ String Also known as: to_s

Returns:

  • (String) 

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# File 'lib/fear/success.rb', line 103

def inspect
  "#<Fear::Success value=#{value.inspect}>"
end

#map ⇒ Try

Returns:


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# File 'lib/fear/success.rb', line 78

def map
  super
rescue StandardError => error
  Failure.new(error)
end

#or_else ⇒ Success

Returns:


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

def or_else
  self
end

#recover ⇒ Success

Returns:


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# File 'lib/fear/success.rb', line 73

def recover
  self
end

#recover_with ⇒ Success

Returns:


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# File 'lib/fear/success.rb', line 68

def recover_with
  self
end

#select {|value| ... } ⇒ Try

Yield Parameters:

  • value (any)

Yield Returns:

  • (Boolean)

Returns:


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# File 'lib/fear/success.rb', line 57

def select
  if yield(value)
    self
  else
    raise NoSuchElementError, "Predicate does not hold for `#{value}`"
  end
rescue StandardError => error
  Failure.new(error)
end

#success? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'lib/fear/success.rb', line 31

def success?
  true
end

#to_either ⇒ Right

Returns:


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# File 'lib/fear/success.rb', line 92

def to_either
  Right.new(value)
end