Module: Katuv::NodeBehavior

Defined in:
lib/katuv/node_behavior.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/katuv/node_behavior.rb', line 10

def name
  @name
end

#parent ⇒ Object (readonly)

Returns the value of attribute parent.



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# File 'lib/katuv/node_behavior.rb', line 10

def parent
  @parent
end

Instance Method Details

#arity ⇒ Object 



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# File 'lib/katuv/node_behavior.rb', line 22

def arity
  @block.arity
end

#block ⇒ Object

Raises:

  • (NoMethodError) 


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# File 'lib/katuv/node_behavior.rb', line 16

def block
  # pretend there's no method if we're not a terminal class.
  raise NoMethodError unless terminal?
  @block
end

#children ⇒ Object 



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# File 'lib/katuv/node_behavior.rb', line 38

def children
  @children ||= {}
end

#each(&block) ⇒ Object 



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# File 'lib/katuv/node_behavior.rb', line 30

def each(&block)
  children.values.each(&block)
end

#has_children? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/katuv/node_behavior.rb', line 42

def has_children?
  children.any?
end

#initialize(name = nil, opts = {}, &block) ⇒ Object 



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# File 'lib/katuv/node_behavior.rb', line 3

def initialize(name = nil, opts = {}, &block)
  @parent = opts[:parent]
  @name = name
  @opts = opts
  @block = block
  run! &block unless terminal?
end

#parameters ⇒ Object 



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# File 'lib/katuv/node_behavior.rb', line 26

def parameters
  @block.parameters
end

#run!(&block) ⇒ Object 



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# File 'lib/katuv/node_behavior.rb', line 34

def run!(&block)
  instance_eval &block if block_given?
end

#terminal? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/katuv/node_behavior.rb', line 12

def terminal?
  self.class.terminal?
end