Class: OrderedHash

$Id: orderedhash.rb 14 2008-03-02 05:42:30Z warchild $

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THIS SOFTWARE IS PROVIDED BY Jon Hart ``AS IS’’ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Jon Hart BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Simple ordered hash.

XXX: todo — add a method for moving/shifting members around

Methods

[]= delete each each_key each_value new

Public Class methods

new()

[Source]

# File lib/orderedhash.rb, line 33
  def initialize
    @keys = []
  end

Public Instance methods

[]=(key, val)

[Source]

# File lib/orderedhash.rb, line 37
  def []=(key, val)
    @keys << key unless (self[key])
    super
  end

delete(key)

[Source]

# File lib/orderedhash.rb, line 42
  def delete(key)
    @keys.delete(key)
    super
  end

each() {|k, self[k]| ...}

[Source]

# File lib/orderedhash.rb, line 47
  def each
    @keys.each { |k| yield k, self[k] }
  end

each_key() {|k| ...}

[Source]

# File lib/orderedhash.rb, line 51
  def each_key
    @keys.each { |k| yield k }
  end

each_value() {|self[k]| ...}

[Source]

# File lib/orderedhash.rb, line 55
  def each_value
    @keys.each { |k| yield self[k] }
  end