diff options
Diffstat (limited to 'activesupport/lib/active_support/json/encoding.rb')
-rw-r--r-- | activesupport/lib/active_support/json/encoding.rb | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/activesupport/lib/active_support/json/encoding.rb b/activesupport/lib/active_support/json/encoding.rb index acccb62aea..5441145dfd 100644 --- a/activesupport/lib/active_support/json/encoding.rb +++ b/activesupport/lib/active_support/json/encoding.rb @@ -4,12 +4,13 @@ module ActiveSupport end # Converts a Ruby object into a JSON string. - def self.encode(value, options = nil) - options ||= {} - seen = (options[:seen] ||= []) - raise CircularReferenceError, 'object references itself' if seen.include?(value.object_id) - seen << value.object_id - value.send(:rails_to_json, options) + def self.encode(value, options = nil, seen = nil) + seen ||= [] + if seen.any? { |object| object.equal?(value) } + raise CircularReferenceError, 'object references itself' + end + seen << value + value.send(:rails_to_json, options, seen) ensure seen.pop end |