Class: Hocon::Impl::ResolveSource::Node

Inherits:
Object
  • Object
show all
Defined in:
lib/hocon/impl/resolve_source.rb

Overview

a persistent list

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(value, next_node = nil) ⇒ Node

Returns a new instance of Node.



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# File 'lib/hocon/impl/resolve_source.rb', line 199

def initialize(value, next_node = nil)
  @value = value
  @next_node = next_node
end

Instance Attribute Details

#next_node ⇒ Object (readonly)

Returns the value of attribute next_node.



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# File 'lib/hocon/impl/resolve_source.rb', line 197

def next_node
  @next_node
end

#value ⇒ Object (readonly)

Returns the value of attribute value.



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# File 'lib/hocon/impl/resolve_source.rb', line 197

def value
  @value
end

Instance Method Details

#head ⇒ Object 



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# File 'lib/hocon/impl/resolve_source.rb', line 208

def head
  @value
end

#last ⇒ Object 



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# File 'lib/hocon/impl/resolve_source.rb', line 216

def last
  i = self
  while i.next_node != nil
    i = i.next_node
  end
  i.value
end

#prepend(value) ⇒ Object 



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# File 'lib/hocon/impl/resolve_source.rb', line 204

def prepend(value)
  Node.new(value, self)
end

#reverse ⇒ Object 



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# File 'lib/hocon/impl/resolve_source.rb', line 224

def reverse
  if @next_node == nil
    self
  else
    reversed = Node.new(@value)
    i = @next_node
    while i != nil
      reversed = reversed.prepend(i.value)
      i = i.next_node
    end
    reversed
  end
end

#tail ⇒ Object 



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# File 'lib/hocon/impl/resolve_source.rb', line 212

def tail
  @next_node
end

#to_s ⇒ Object 



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# File 'lib/hocon/impl/resolve_source.rb', line 238

def to_s
  sb = ""
  sb << "["
  to_append_value = self.reverse
  while to_append_value != nil
    sb << to_append_value.value.to_s
    if to_append_value.next_node != nil
      sb << " <= "
    end
    to_append_value = to_append_value.next_node
  end
  sb << "]"
  sb
end