Contents

class Predicate
  module Intersect
    include Expr

    def priority
      80
    end

    def identifier
      self[1]
    end

    def values
      self[2]
    end

    def free_variables
      @free_variables ||= identifier.free_variables
    end

    def constant_variables
      []
    end

    def evaluate(tuple)
      t_x = identifier.evaluate(tuple)
      t_x && !(t_x & values).empty?
    end

  end
end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
predicate-2.4.0	lib/predicate/nodes/intersect.rb
predicate-2.3.3	lib/predicate/nodes/intersect.rb
predicate-2.3.2	lib/predicate/nodes/intersect.rb
predicate-2.3.1	lib/predicate/nodes/intersect.rb
predicate-2.3.0	lib/predicate/nodes/intersect.rb