class Sequence::OfHash

Public Class Methods

new(hash,exceptions=[],include_default=false,modifiable=false) click to toggle source
# File lib/sequence/ofhash.rb, line 8
def initialize(hash,exceptions=[],include_default=false,modifiable=false)
  @hash=hash
  hash=hash.dup
  exceptions.each{|exc| hash.delete exc }
  @data=hash.inject([]){|l,pair| l+pair}
  @data<<hash.default if include_default
  @data.freeze unless modifiable
end

Public Instance Methods

modify(*args) click to toggle source
# File lib/sequence/ofhash.rb, line 17
def modify(*args)
  repldata=args.pop
  start,len,only1=_parse_slice_args(*args)
  len==1 or raise "scalar modifications to hashes only!"
  if @data.size.%(2).nonzero? and @data.size.-(1)==start
    @hash.default=repldata.first
  elsif start.%(2).zero? #key
    @hash[repldata.first]=@hash.delete @data[start]
  else #value
    @hash[@data[start-1]]=repldata.first
  end
  @data[first]=repldata.first
  repldata
end