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[graph.njae.git]
/
lib
/
graph
/
edge.rb~
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require 'ostruct'
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module Graph
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class Edge < OpenStruct
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def initialize
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super
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self.connections = []
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self
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end
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def <<(other)
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c = Connection.new
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c.end = other
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self.connections << c
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self
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end
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def vertices
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self.connections.map {|c| c.end}
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end
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def connection_at(vertex)
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self.connections.select {|c| c.end.equal? vertex}.first
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end
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end
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class Connection < OpenStruct
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def initialize
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super
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self
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end
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end
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end