Class: Plexus::Arc

Inherits:

Struct::ArcBase

• Object
• Struct::ArcBase
• Plexus::Arc

show all

Defined in:

lib/plexus/arc.rb

Class Method Summary (collapse)

• + (Object) [](p_source, p_target, p_label = nil)

  Shortcut constructor.

Instance Method Summary (collapse)

• - (Object) <=>(rhs)

  Sort support.

• - (Boolean) eql?(other) (also: #==)

  Ignore labels for equality.

• - (Object) hash

  Hash is defined in such a way that label is not part of the hash value FIXME: I had to get rid of that in order to make to_dot_graph work, but I can't figure it out (doesn't show up in the stack!).

• - (Arc) initialize(p_source, p_target, p_label = nil) constructor

  A new instance of Arc.

• - (Object) inspect
• - (Object) reverse

  Returns (v,u) if self == (u,v).

• - (Object) to_s

  Arc.to_s => ???(1-2)??? Arc.to_s => ???(1-2 test)???.

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# File 'lib/plexus/arc.rb', line 10

def initialize(p_source, p_target, p_label = nil)
  super(p_source, p_target, p_label)
end

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# File 'lib/plexus/arc.rb', line 49

def self.[](p_source, p_target, p_label = nil)
  new(p_source, p_target, p_label)
end

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# File 'lib/plexus/arc.rb', line 27

def <=>(rhs)
  [source, target] <=> [rhs.source, rhs.target]
end

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# File 'lib/plexus/arc.rb', line 15

def eql?(other)
  same_class = self.class.ancestors.include?(other.class) || other.class.ancestors.include?(self.class)
  same_class && target == other.target && source == other.source
end

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# File 'lib/plexus/arc.rb', line 42

def hash
  source.hash ^ (target.hash + 1)
end

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# File 'lib/plexus/arc.rb', line 53

def inspect
  "#{self.class.to_s}[#{source.inspect},#{target.inspect},#{label.inspect}]"
end

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# File 'lib/plexus/arc.rb', line 22

def reverse()
  self.class.new(target, source, label)
end

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# File 'lib/plexus/arc.rb', line 33

def to_s
  l = label ? " '#{label.to_s}'" : ''
  "(#{source}-#{target}#{l})"
end