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-rw-r--r--ext/json/lib/json/add/date.rb32
1 files changed, 26 insertions, 6 deletions
diff --git a/ext/json/lib/json/add/date.rb b/ext/json/lib/json/add/date.rb
index 25523561a5..19688f751b 100644
--- a/ext/json/lib/json/add/date.rb
+++ b/ext/json/lib/json/add/date.rb
@@ -6,16 +6,29 @@ require 'date'
class Date
- # Deserializes JSON string by converting Julian year <tt>y</tt>, month
- # <tt>m</tt>, day <tt>d</tt> and Day of Calendar Reform <tt>sg</tt> to Date.
+ # See #as_json.
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.
+ # Methods <tt>Date#as_json</tt> and +Date.json_create+ may be used
+ # to serialize and deserialize a \Date object;
+ # see Marshal[rdoc-ref:Marshal].
+ #
+ # \Method <tt>Date#as_json</tt> serializes +self+,
+ # returning a 2-element hash representing +self+:
+ #
+ # require 'json/add/date'
+ # x = Date.today.as_json
+ # # => {"json_class"=>"Date", "y"=>2023, "m"=>11, "d"=>21, "sg"=>2299161.0}
+ #
+ # \Method +JSON.create+ deserializes such a hash, returning a \Date object:
+ #
+ # Date.json_create(x)
+ # # => #<Date: 2023-11-21 ((2460270j,0s,0n),+0s,2299161j)>
+ #
def as_json(*)
{
JSON.create_id => self.class.name,
@@ -26,8 +39,15 @@ class Date
}
end
- # Stores class name (Date) with Julian year <tt>y</tt>, month <tt>m</tt>, day
- # <tt>d</tt> and Day of Calendar Reform <tt>sg</tt> as JSON string
+ # Returns a JSON string representing +self+:
+ #
+ # require 'json/add/date'
+ # puts Date.today.to_json
+ #
+ # Output:
+ #
+ # {"json_class":"Date","y":2023,"m":11,"d":21,"sg":2299161.0}
+ #
def to_json(*args)
as_json.to_json(*args)
end