Method: Enumerable#transitive_closure

Defined in:
lib/jinx/helpers/transitive_closure.rb

#transitive_closure(method = nil) ⇒ Object

Returns the transitive closure over all items in this Enumerable.

See Also:



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# File 'lib/jinx/helpers/transitive_closure.rb', line 45

def transitive_closure(method=nil)
  # delegate to Object if there is a method argument
  return super(method) if method
  # this Enumerable's children are this Enumerable's contents
  closure = super() { |node| node.equal?(self) ? self : yield(node) }
  # remove this collection from the closure
  closure[1..-1]
end