extensions.rb in json-ld-1.1.1

- old
+ new
@@ -64,84 +64,5 @@
       len_diff = a.length <=> b.length
       len_diff == 0 ? a <=> b : len_diff
     end
   end
 end
-
-if RUBY_VERSION < "1.9"
-  class InsertOrderPreservingHash < Hash
-    include Enumerable
-
-    def initialize(*args, &block)
-      super
-      @ordered_keys = []
-    end
-
-    def []=(key, val)
-      @ordered_keys << key unless has_key? key
-      super
-    end
-
-    def each
-      @ordered_keys.each {|k| yield(k, self[k])}
-    end
-    alias :each_pair :each
-
-    def each_value
-      @ordered_keys.each {|k| yield(super[k])}
-    end
-
-    def each_key
-      @ordered_keys.each {|k| yield k}
-    end
-
-    def keys
-      @ordered_keys
-    end
-
-    def clear
-      @ordered_keys.clear
-      super
-    end
-
-    def delete(k, &block)
-      @ordered_keys.delete(k)
-      super
-    end
-
-    def reject!
-      del = []
-      each_pair {|k,v| del << k if yield k,v}
-      del.each {|k| delete k}
-      del.empty? ? nil : self
-    end
-
-    def delete_if(&block)
-      reject!(&block)
-      self
-    end
-
-    def merge!(other)
-      new_keys = other.instance_variable_get(:@ordered_keys) || other.keys
-      new_keys -= @ordered_keys
-      @ordered_keys += new_keys
-      super
-      self
-    end
-    
-    def merge(other)
-      self.dup.merge!(other)
-    end
-  end
-  
-  class Hash
-    def self.ordered(obj = nil, &block)
-      InsertOrderPreservingHash.new(obj, &block)
-    end
-  end
-else
-  class Hash
-    def self.ordered(obj = nil, &block)
-      Hash.new(obj, &block)
-    end
-  end
-end
\ No newline at end of file