118 lines
2.3 KiB
Ruby
118 lines
2.3 KiB
Ruby
module Morpher
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# Abstract namespace class for evaluation states
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class Evaluation
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include AbstractType, Printer::Mixin, Adamantium::Flat, Anima.new(
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:evaluator,
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:input,
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:output,
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:success
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)
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private :success
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# Test if evaluation was successful
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#
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# @return [true]
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# if evaluation was successful
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#
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# @return [false]
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# otherwise
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#
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# @api private
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#
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alias_method :success?, :success
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public :success?
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ERROR_DEFAULTS = IceNine.deep_freeze(
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output: Undefined,
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success: false
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)
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SUCCESS_DEFAULTS = IceNine.deep_freeze(
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success: true
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)
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# Return error instance
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#
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# @param [Hash<Symbol, Object>] attributes
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#
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# @return [Evaluation]
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#
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# @api private
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#
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def self.error(attributes)
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new(ERROR_DEFAULTS.merge(attributes))
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end
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# Return successful instance
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#
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# @param [Hash<Symbol, Object>] attributes
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#
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# @return [Evaluation]
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#
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# @api private
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#
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def self.success(attributes)
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new(SUCCESS_DEFAULTS.merge(attributes))
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end
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# Evaluation state for nullary evaluators
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class Nullary < self
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printer do
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name
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indent do
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attributes :input, :output, :success?
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visit :evaluator
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end
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end
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end
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# Evaluation state for nary evaluators
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class Nary < self
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include anima.add(:evaluations)
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printer do
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name
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indent do
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attributes :input, :output, :success?
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attribute_class :evaluator
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visit_many :evaluations
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end
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end
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end # Evaluation
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# Evaluation state for unary evaluators
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class Binary < self
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include anima.add(:left_evaluation, :right_evaluation)
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printer do
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name
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indent do
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attributes :input, :output, :success?
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visit :left_evaluation
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visit :right_evaluation
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end
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end
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end # Unary
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# Evaluation state for unary evaluators
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class Unary < self
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include anima.add(:operand_evaluation)
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printer do
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name
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indent do
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attributes :input, :output, :success?
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visit :operand_evaluation
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visit :evaluator
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end
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end
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end # Unary
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end # Evaluation
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end # Morpher
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