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PATH: opt / alt / ruby26 / lib64 / ruby / 2.6.0 / bundler / vendor / molinillo / lib / molinillo / dependency_graph

# frozen_string_literal: true

require 'bundler/vendor/molinillo/lib/molinillo/dependency_graph/action'
module Bundler::Molinillo
  class DependencyGraph
    # @!visibility private
    # @see DependencyGraph#detach_vertex_named
    class DetachVertexNamed < Action
      # @!group Action

# (see Action#name)
      def self.action_name
        :add_vertex
      end

# (see Action#up)
      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

# (see Action#down)
      def down(graph)
        return unless @vertex
        graph.vertices[@vertex.name] = @vertex
        @vertex.outgoing_edges.each do |e|
          e.destination.incoming_edges << e
        end
        @vertex.incoming_edges.each do |e|
          e.origin.outgoing_edges << e
        end
      end

# @!group DetachVertexNamed

# @return [String] the name of the vertex to detach
      attr_reader :name

# Initialize an action to detach a vertex from a dependency graph
      # @param [String] name the name of the vertex to detach
      def initialize(name)
        @name = name
      end
    end
  end
end

[-] add_edge_no_circular.rb [edit]
[-] tag.rb [edit]
[-] add_vertex.rb [edit]
[-] set_payload.rb [edit]
[-] detach_vertex_named.rb [edit]
[+] ..
[-] log.rb [edit]
[-] vertex.rb [edit]
[-] action.rb [edit]
[-] delete_edge.rb [edit]