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# frozen_string_literal: true
require_relative 'action'
module Gem::Molinillo
class DependencyGraph
# @!visibility private
# @see DependencyGraph#set_payload
class SetPayload < Action # :nodoc:
# @!group Action
# (see Action.action_name)
def self.action_name
:set_payload
end
# (see Action#up)
def up(graph)
vertex = graph.vertex_named(name)
@old_payload = vertex.payload
vertex.payload = payload
end
# (see Action#down)
def down(graph)
graph.vertex_named(name).payload = @old_payload
end
# @!group SetPayload
# @return [String] the name of the vertex
attr_reader :name
# @return [Object] the payload for the vertex
attr_reader :payload
# Initialize an action to add set the payload for a vertex in a dependency
# graph
# @param [String] name the name of the vertex
# @param [Object] payload the payload for the vertex
def initialize(name, payload)
@name = name
@payload = payload
end
end
end
end
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