diff options
Diffstat (limited to 'lib/rubygems/vendor/molinillo/lib/molinillo/dependency_graph/action.rb')
-rw-r--r-- | lib/rubygems/vendor/molinillo/lib/molinillo/dependency_graph/action.rb | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/lib/rubygems/vendor/molinillo/lib/molinillo/dependency_graph/action.rb b/lib/rubygems/vendor/molinillo/lib/molinillo/dependency_graph/action.rb new file mode 100644 index 0000000000..8707ec451d --- /dev/null +++ b/lib/rubygems/vendor/molinillo/lib/molinillo/dependency_graph/action.rb @@ -0,0 +1,36 @@ +# frozen_string_literal: true + +module Gem::Molinillo + class DependencyGraph + # An action that modifies a {DependencyGraph} that is reversible. + # @abstract + class Action + # rubocop:disable Lint/UnusedMethodArgument + + # @return [Symbol] The name of the action. + def self.action_name + raise 'Abstract' + end + + # Performs the action on the given graph. + # @param [DependencyGraph] graph the graph to perform the action on. + # @return [Void] + def up(graph) + raise 'Abstract' + end + + # Reverses the action on the given graph. + # @param [DependencyGraph] graph the graph to reverse the action on. + # @return [Void] + def down(graph) + raise 'Abstract' + end + + # @return [Action,Nil] The previous action + attr_accessor :previous + + # @return [Action,Nil] The next action + attr_accessor :next + end + end +end |