up

# File lib/rubygems/resolver/molinillo/lib/molinillo/dependency_graph/detach_vertex_named.rb, line 16
      def up(graph)
        return [] unless @vertex = graph.vertices.delete(name)

        removed_vertices = [@vertex]
        @vertex.outgoing_edges.each do |e|
          v = e.destination
          v.incoming_edges.delete(e)
          if !v.root? && v.incoming_edges.empty?
            removed_vertices.concat graph.detach_vertex_named(v.name)
          end
        end

        @vertex.incoming_edges.each do |e|
          v = e.origin
          v.outgoing_edges.delete(e)
        end

        removed_vertices
      end