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
