Class: Dictionary

Inherits:
Hashery::Dictionary
  • Object
show all
Defined in:
lib/kyanite/dictionary.rb

Overview

Dictionary Additions

Kyanite definitions

Dictionary, Hash

Kyanite tests and examples

TestKyaniteDictionary

Base class

Hashery::Dictionary (A Dictionary is a Hash that preserves order.)

Usage

require ‘kyanite/dictionary’

Instance Method Summary collapse

Instance Method Details

#-(other) ⇒ Object 



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# File 'lib/kyanite/dictionary.rb', line 32

def -(other)
  (self.to_a - other.to_a).to_dictionary
end

#each_with_index ⇒ Object 



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# File 'lib/kyanite/dictionary.rb', line 47

def each_with_index
  order.each_with_index { |k,i| yield( k, @hash[k], i ) }
  self
end

#fetch_by_index(index) ⇒ Object 



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# File 'lib/kyanite/dictionary.rb', line 20

def fetch_by_index(index)
  @hash[order[index]]
end

#first_key ⇒ Object 



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# File 'lib/kyanite/dictionary.rb', line 24

def first_key
  order.first
end

#last_key ⇒ Object 



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# File 'lib/kyanite/dictionary.rb', line 28

def last_key
  order.last
end

#unshift(k, v) ⇒ Object 



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# File 'lib/kyanite/dictionary.rb', line 36

def unshift( k,v )
  unless @hash.include?( k )
    @order.unshift( k )
    @hash.store( k,v )
    true
  else
    false
  end
end