tsort_each_child

# File lib/rubygems/request_set.rb, line 283
  def tsort_each_child node # :nodoc:
    node.spec.dependencies.each do |dep|
      next if dep.type == :development and not @development

      match = @requests.find { |r| dep.match? r.spec.name, r.spec.version }
      if match
        begin
          yield match
        rescue TSort::Cyclic
        end
      else
        unless @soft_missing
          raise Gem::DependencyError, "Unresolved dependency found during sorting - #{dep} (requested by #{node.spec.full_name})"
        end
      end
    end
  end