Document `Rational` json generation methods.

1 files changed, 10 insertions, 4 deletions

diff --git a/lib/json/add/rational.rb b/lib/json/add/rational.rb
index 867cd92..c100d13 100644
--- a/lib/json/add/rational.rb
+++ b/lib/json/add/rational.rb
@@ -4,19 +4,25 @@ end
 defined?(::Rational) or require 'rational'
 
 class Rational
+
+  # Deserializes JSON string by converting numerator value <tt>n</tt>, denominator
+  # value <tt>d</tt>, to a Rational object.
   def self.json_create(object)
     Rational(object['n'], object['d'])
   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,
-      'n'            => numerator,
-      'd'            => denominator,
+        JSON.create_id => self.class.name,
+        'n'            => numerator,
+        'd'            => denominator,
     }
   end
 
+  # Stores class name (Rational) along with numerator value <tt>n</tt> and denominator value <tt>d</tt> as JSON string
   def to_json(*)
     as_json.to_json
   end
-end
+end
\ No newline at end of file