class Hamster::Realizable
Common behavior for other classes which implement various kinds of `List`s @private
Public Class Methods
new()
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# File lib/hamster/list.rb, line 1387 def initialize @head, @tail, @size = Undefined, Undefined, nil end
Public Instance Methods
cached_size?()
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# File lib/hamster/list.rb, line 1412 def cached_size? @size != nil end
empty?()
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# File lib/hamster/list.rb, line 1402 def empty? realize if @head == Undefined @size == 0 end
head()
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# File lib/hamster/list.rb, line 1391 def head realize if @head == Undefined @head end
Also aliased as: first
realized?()
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# File lib/hamster/list.rb, line 1416 def realized? @head != Undefined end
size()
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Calls superclass method
Hamster::List#size
# File lib/hamster/list.rb, line 1407 def size @size ||= super end
Also aliased as: length
tail()
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# File lib/hamster/list.rb, line 1397 def tail realize if @tail == Undefined @tail end