1unless defined?(::JSON::JSON_LOADED) and ::JSON::JSON_LOADED
2  require 'json'
3end
4
5# Exception serialization/deserialization
6class Exception
7
8  # Deserializes JSON string by constructing new Exception object with message
9  # <tt>m</tt> and backtrace <tt>b</tt> serialized with <tt>to_json</tt>
10  def self.json_create(object)
11    result = new(object['m'])
12    result.set_backtrace object['b']
13    result
14  end
15
16  # Returns a hash, that will be turned into a JSON object and represent this
17  # object.
18  def as_json(*)
19    {
20      JSON.create_id => self.class.name,
21      'm'            => message,
22      'b'            => backtrace,
23    }
24  end
25
26  # Stores class name (Exception) with message <tt>m</tt> and backtrace array
27  # <tt>b</tt> as JSON string
28  def to_json(*args)
29    as_json.to_json(*args)
30  end
31end
32