Method: Plexus::GraphBuilder#initialize

Defined in:
lib/plexus/graph.rb

#initialize(*params) ⇒ Graph

Creates a generic graph.

Parameters:

Returns:

Raises:

  • (ArgumentError) 


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# File 'lib/plexus/graph.rb', line 34

def initialize(*params)
  raise ArgumentError if params.any? do |p|
    # FIXME: checking wether it's a GraphBuilder (module) is not sufficient
    # and the is_a? redefinition trick (instance_evaling) should be
    # completed by a clever way to check the actual class of p.
    # Maybe using ObjectSpace to get the available Graph classes?
    !(p.is_a? Plexus::GraphBuilder or p.is_a? Array or p.is_a? Hash)
  end

  args = params.last || {}

  class << self
    self
  end.module_eval do
    # These inclusions trigger some validations checks by the way.
    include(args[:implementation]       ? args[:implementation]       : Plexus::AdjacencyGraphBuilder)
    include(args[:algorithmic_category] ? args[:algorithmic_category] : Plexus::DigraphBuilder       )
  end

  implementation_initialize(*params)
end