# This file contains implementations of ruby core's custom objects for # serialisation/deserialisation. unless defined?(::JSON::JSON_LOADED) and ::JSON::JSON_LOADED require 'json' end require 'date' # Symbol serialization/deserialization class Symbol # Returns a hash, that will be turned into a JSON object and represent this # object. def as_json(*) { JSON.create_id => self.class.name, 's' => to_s, } end # Stores class name (Symbol) with String representation of Symbol as a JSON string. def to_json(*a) as_json.to_json(*a) end # Deserializes JSON string by converting the string value stored in the object to a Symbol def self.json_create(o) o['s'].to_sym end end # Time serialization/deserialization class Time # Deserializes JSON string by converting time since epoch to Time def self.json_create(object) if usec = object.delete('u') # used to be tv_usec -> tv_nsec object['n'] = usec * 1000 end if respond_to?(:tv_nsec) at(*object.values_at('s', 'n')) else at(object['s'], object['n'] / 1000) end end # Returns a hash, that will be turned into a JSON object and represent this # object. def as_json(*) { JSON.create_id => self.class.name, 's' => tv_sec, 'n' => respond_to?(:tv_nsec) ? tv_nsec : tv_usec * 1000 } end # Stores class name (Time) with number of seconds since epoch and number of # microseconds for Time as JSON string def to_json(*args) as_json.to_json(*args) end end # Date serialization/deserialization class Date # Deserializes JSON string by converting Julian year y, month # m, day d and Day of Calendar Reform sg to Date. def self.json_create(object) civil(*object.values_at('y', 'm', 'd', 'sg')) end alias start sg unless method_defined?(:start) # Returns a hash, that will be turned into a JSON object and represent this # object. def as_json(*) { JSON.create_id => self.class.name, 'y' => year, 'm' => month, 'd' => day, 'sg' => start, } end # Stores class name (Date) with Julian year y, month m, day # d and Day of Calendar Reform sg as JSON string def to_json(*args) as_json.to_json(*args) end end # DateTime serialization/deserialization class DateTime # Deserializes JSON string by converting year y, month m, # day d, hour H, minute M, second S, # offset of and Day of Calendar Reform sg to DateTime. def self.json_create(object) args = object.values_at('y', 'm', 'd', 'H', 'M', 'S') of_a, of_b = object['of'].split('/') if of_b and of_b != '0' args << Rational(of_a.to_i, of_b.to_i) else args << of_a end args << object['sg'] civil(*args) end alias start sg unless method_defined?(:start) # Returns a hash, that will be turned into a JSON object and represent this # object. def as_json(*) { JSON.create_id => self.class.name, 'y' => year, 'm' => month, 'd' => day, 'H' => hour, 'M' => min, 'S' => sec, 'of' => offset.to_s, 'sg' => start, } end # Stores class name (DateTime) with Julian year y, month m, # day d, hour H, minute M, second S, # offset of and Day of Calendar Reform sg as JSON string def to_json(*args) as_json.to_json(*args) end end # Range serialization/deserialization class Range # Deserializes JSON string by constructing new Range object with arguments # a serialized by to_json. def self.json_create(object) new(*object['a']) end # Returns a hash, that will be turned into a JSON object and represent this # object. def as_json(*) { JSON.create_id => self.class.name, 'a' => [ first, last, exclude_end? ] } end # Stores class name (Range) with JSON array of arguments a which # include first (integer), last (integer), and # exclude_end? (boolean) as JSON string. def to_json(*args) as_json.to_json(*args) end end # Struct serialization/deserialization class Struct # Deserializes JSON string by constructing new Struct object with values # v serialized by to_json. def self.json_create(object) new(*object['v']) end # Returns a hash, that will be turned into a JSON object and represent this # object. def as_json(*) klass = self.class.name klass.to_s.empty? and raise JSON::JSONError, "Only named structs are supported!" { JSON.create_id => klass, 'v' => values, } end # Stores class name (Struct) with Struct values v as a JSON string. # Only named structs are supported. def to_json(*args) as_json.to_json(*args) end end # Exception serialization/deserialization class Exception # Deserializes JSON string by constructing new Exception object with message # m and backtrace b serialized with to_json def self.json_create(object) result = new(object['m']) result.set_backtrace object['b'] result end # Returns a hash, that will be turned into a JSON object and represent this # object. def as_json(*) { JSON.create_id => self.class.name, 'm' => message, 'b' => backtrace, } end # Stores class name (Exception) with message m and backtrace array # b as JSON string def to_json(*args) as_json.to_json(*args) end end # Regexp serialization/deserialization class Regexp # Deserializes JSON string by constructing new Regexp object with source # s (Regexp or String) and options o serialized by # to_json def self.json_create(object) new(object['s'], object['o']) end # Returns a hash, that will be turned into a JSON object and represent this # object. def as_json(*) { JSON.create_id => self.class.name, 'o' => options, 's' => source, } end # Stores class name (Regexp) with options o and source s # (Regexp or String) as JSON string def to_json(*) as_json.to_json end end