AutoArray

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

new(size=0, default=nil, update = nil, update_index = nil)

[ show source ]

# File lib/facets/autoarray.rb, line 44
  def initialize(size=0, default=nil, update = nil, update_index = nil)
    super(size, default)
    @update, @update_index = update, update_index
  end

Public Instance methods

[](k)

[ show source ]

# File lib/facets/autoarray.rb, line 49
  def [](k)
    if -self.length+1 < k and k < self.length
      super(k)
    else
      Autoarray.new(0, nil, self, k)
    end
  end

[]=(k, v)

[ show source ]

# File lib/facets/autoarray.rb, line 57
  def []=(k, v)
    @update[@update_index] = self if @update and @update_index
    super
  end