Module: Pacer::Utils::TSort::Route

Includes:
TSort
Defined in:
lib/pacer/utils/tsort.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#tsort_anon_mod ⇒ Object

Returns the value of attribute tsort_anon_mod.



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# File 'lib/pacer/utils/tsort.rb', line 12

def tsort_anon_mod
  @tsort_anon_mod
end

Instance Method Details

#dependencies(&block) ⇒ Object

NOTE: this is a great example of dynamically injecting a custom method into a route.



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# File 'lib/pacer/utils/tsort.rb', line 16

def dependencies(&block)
  anon_mod = Module.new
  class << anon_mod
    def inspect
      '<TSort anon mixin module>'
    end
  end
  anon_mod.const_set :Route, TSort::Route
  anon_mod.const_set :Vertex, Module.new
  anon_mod::Vertex.const_set :DependenciesBlock, block
  anon_mod::Vertex.instance_eval do
    def self.included(target)
      target.const_set :DependenciesBlock, self::DependenciesBlock
    end
  end
  route = v.add_extensions [TSort, anon_mod]
  route.tsort_anon_mod = anon_mod
  route
end

#tsort ⇒ Object 



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# File 'lib/pacer/utils/tsort.rb', line 48

def tsort
  super.to_route(:graph => graph,
                 :element_type => :vertex,
                 :extensions => (extensions - [TSort, tsort_anon_mod]))
end

#tsort_each_child(node) ⇒ Object 



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# File 'lib/pacer/utils/tsort.rb', line 42

def tsort_each_child(node)
  node.tsort_dependencies(tsort_anon_mod).each do |vertex|
    yield vertex
  end
end

#tsort_each_node ⇒ Object 



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# File 'lib/pacer/utils/tsort.rb', line 36

def tsort_each_node
  v.each do |vertex|
    yield vertex
  end
end