Class AutoArray
In: lib/more/facets/autoarray.rb
Parent: Array

An Array that automatically expands dimensions as needed.

  a  = Autoarray.new
  a[1][2][3] = 12
  a             #=> [nil, [nil, nil, [nil, nil, nil, 12]]]
  a[2][3][4]    #=> []
  a             #=> [nil, [nil, nil, [nil, nil, nil, 12]]]
  a[1][-2][1] = "Negative"
  a             #=> [nil, [nil, [nil, "Negative"], [nil, nil, nil, 12]]]

Methods

[]   []=   new  

Public Class methods

[Source]

# File lib/more/facets/autoarray.rb, line 16
  def initialize(size=0, default=nil, update = nil, update_index = nil)
    super(size, default)
    @update, @update_index = update, update_index
  end

Public Instance methods

[Source]

# File lib/more/facets/autoarray.rb, line 21
  def [](k)
    if -self.length+1 < k and k < self.length
      super(k)
    else
      Autoarray.new(0, nil, self, k)
    end
  end

[Source]

# File lib/more/facets/autoarray.rb, line 29
  def []=(k, v)
    @update[@update_index] = self if @update and @update_index
    super
  end

[Validate]