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Diffstat (limited to 'lib/json/add/core.rb')
-rw-r--r-- | lib/json/add/core.rb | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/lib/json/add/core.rb b/lib/json/add/core.rb new file mode 100644 index 0000000..4423e7a --- /dev/null +++ b/lib/json/add/core.rb @@ -0,0 +1,135 @@ +# This file contains implementations of ruby core's custom objects for +# serialisation/deserialisation. + +unless Object.const_defined?(:JSON) and ::JSON.const_defined?(:JSON_LOADED) and + ::JSON::JSON_LOADED + require 'json' +end +require 'date' + +class 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 + + def to_json(*args) + { + 'json_class' => self.class.name, + 's' => tv_sec, + 'n' => respond_to?(:tv_nsec) ? tv_nsec : tv_usec * 1000 + }.to_json(*args) + end +end + +class Date + def self.json_create(object) + civil(*object.values_at('y', 'm', 'd', 'sg')) + end + + alias start sg unless method_defined?(:start) + + def to_json(*args) + { + 'json_class' => self.class.name, + 'y' => year, + 'm' => month, + 'd' => day, + 'sg' => start, + }.to_json(*args) + end +end + +class 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) + + def to_json(*args) + { + 'json_class' => self.class.name, + 'y' => year, + 'm' => month, + 'd' => day, + 'H' => hour, + 'M' => min, + 'S' => sec, + 'of' => offset.to_s, + 'sg' => start, + }.to_json(*args) + end +end + +class Range + def self.json_create(object) + new(*object['a']) + end + + def to_json(*args) + { + 'json_class' => self.class.name, + 'a' => [ first, last, exclude_end? ] + }.to_json(*args) + end +end + +class Struct + def self.json_create(object) + new(*object['v']) + end + + def to_json(*args) + klass = self.class.name + klass.to_s.empty? and raise JSON::JSONError, "Only named structs are supported!" + { + 'json_class' => klass, + 'v' => values, + }.to_json(*args) + end +end + +class Exception + def self.json_create(object) + result = new(object['m']) + result.set_backtrace object['b'] + result + end + + def to_json(*args) + { + 'json_class' => self.class.name, + 'm' => message, + 'b' => backtrace, + }.to_json(*args) + end +end + +class Regexp + def self.json_create(object) + new(object['s'], object['o']) + end + + def to_json(*) + { + 'json_class' => self.class.name, + 'o' => options, + 's' => source, + }.to_json + end +end |