Sha256: d93411434962389a35645f2b0cb94243971be184d0e06281009084d30d2597b2
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Versions: 4
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Contents
module Dry module Logic class Rule::Composite < Rule include Dry::Equalizer(:left, :right) attr_reader :left, :right def initialize(left, right) @left = left @right = right end def name :"#{left.name}_#{type}_#{right.name}" end def to_ast [type, [left.to_ast, right.to_ast]] end alias_method :to_a, :to_ast end class Rule::Implication < Rule::Composite def call(input) if left.(input).success? right.(input) else Logic.Result(true, left, input) end end def type :implication end end class Rule::Conjunction < Rule::Composite def call(input) result = left.(input) if result.success? right.(input) else result end end def type :and end end class Rule::Disjunction < Rule::Composite def call(input) result = left.(input) if result.success? result else right.(input) end end def type :or end end class Rule::ExclusiveDisjunction < Rule::Composite def call(input) Logic.Result(left.(input).success? ^ right.(input).success?, self, input) end def evaluate(input) [left.evaluate(input), right.evaluate(input)] end def type :xor end end end end
Version data entries
4 entries across 4 versions & 1 rubygems