module Mongoid
  module Matcher

    # @api private
    module In
      module_function def matches?(exists, value, condition)
        unless Array === condition
          raise Errors::InvalidQuery, "$in argument must be an array: #{Errors::InvalidQuery.truncate_expr(condition)}"
        end
        if Array === value
          if value.any? { |v|
            condition.any? do |c|
              EqImplWithRegexp.matches?('$in', v, c)
            end
          } then
            return true
          end
        end
        condition.any? do |c|
          EqImplWithRegexp.matches?('$in', value, c)
        end
      end
    end
  end
end