Class: Dry::Logic::Result

Inherits:
Object
  • Object
show all
Defined in:
lib/dry/logic/result.rb

Direct Known Subclasses

LazyValue, Set, Value, Verified, Wrapped

Defined Under Namespace

Classes: LazyValue, Set, Value, Verified, Wrapped

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(input, value, rule) ⇒ Result

Returns a new instance of Result.



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# File 'lib/dry/logic/result.rb', line 77

def initialize(input, value, rule)
  @input = input
  @value = value
  @rule = rule
  @name = rule.name
end

Instance Attribute Details

#input ⇒ Object (readonly)

Returns the value of attribute input.



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# File 'lib/dry/logic/result.rb', line 14

def input
  @input
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/dry/logic/result.rb', line 14

def name
  @name
end

#rule ⇒ Object (readonly)

Returns the value of attribute rule.



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# File 'lib/dry/logic/result.rb', line 14

def rule
  @rule
end

#value ⇒ Object (readonly)

Returns the value of attribute value.



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# File 'lib/dry/logic/result.rb', line 14

def value
  @value
end

Instance Method Details

#>(other) ⇒ Object 



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# File 'lib/dry/logic/result.rb', line 100

def >(other)
  if success?
    other.(input)
  else
    Logic.Result(input, true, rule)
  end
end

#and(other) ⇒ Object 



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# File 'lib/dry/logic/result.rb', line 108

def and(other)
  if success?
    other.(input)
  else
    self
  end
end

#call ⇒ Object 



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# File 'lib/dry/logic/result.rb', line 84

def call(*)
  self
end

#curry(predicate_id = nil) ⇒ Object 



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# File 'lib/dry/logic/result.rb', line 88

def curry(predicate_id = nil)
  if predicate_id
    Result::Verified.new(self, predicate_id)
  else
    self
  end
end

#failure? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dry/logic/result.rb', line 132

def failure?
  ! success?
end

#negated ⇒ Object 



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# File 'lib/dry/logic/result.rb', line 96

def negated
  self.class.new(input, !value, rule)
end

#or(other) ⇒ Object 



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# File 'lib/dry/logic/result.rb', line 116

def or(other)
  if success?
    self
  else
    other.(input)
  end
end

#success? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dry/logic/result.rb', line 128

def success?
  @value
end

#xor(other) ⇒ Object 



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# File 'lib/dry/logic/result.rb', line 124

def xor(other)
  Logic.Result(input, success? ^ other.(input).success?, rule)
end