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unless defined?(::JSON::JSON_LOADED) and ::JSON::JSON_LOADED require 'json' end defined?(::Set) or require 'set' class Set # See #as_json. def self.json_create(object) new object['a'] end # Methods <tt>Set#as_json</tt> and +Set.json_create+ may be used # to serialize and deserialize a \Set object; # see Marshal[rdoc-ref:Marshal]. # # \Method <tt>Set#as_json</tt> serializes +self+, # returning a 2-element hash representing +self+: # # require 'json/add/set' # x = Set.new(%w/foo bar baz/).as_json # # => {"json_class"=>"Set", "a"=>["foo", "bar", "baz"]} # # \Method +JSON.create+ deserializes such a hash, returning a \Set object: # # Set.json_create(x) # => #<Set: {"foo", "bar", "baz"}> # def as_json(*) { JSON.create_id => self.class.name, 'a' => to_a, } end # Returns a JSON string representing +self+: # # require 'json/add/set' # puts Set.new(%w/foo bar baz/).to_json # # Output: # # {"json_class":"Set","a":["foo","bar","baz"]} # def to_json(*args) as_json.to_json(*args) end end