Contents

# The MIT Licence
#
# Copyright (c) 2004-2009 Pistos
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

class SizedArray < Array
  attr_reader :capacity

  def initialize( capacity = 10, *args )
    @capacity = capacity
    super( *args )
  end

  def resize
    if size > @capacity
      slice!( (0...-@capacity) )
    end
  end
  private :resize

  def concat( other_array )
    super( other_array )
    resize
    self
  end

  def fill( *args )
    retval = super( *args )
    resize
    self
  end

  def <<( item )
    retval = super( item )
    if size > @capacity
      retval = shift
    end
    retval
  end

  def push( item )
    self << item
  end

  def unshift( item )
    retval = super( item )
    if size > @capacity
      retval = pop
    end
    retval
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
ver-2010.08	lib/ver/vendor/sized_array.rb
ver-2010.02	lib/ver/vendor/sized_array.rb
ver-2009.12.14	lib/ver/vendor/sized_array.rb