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-rw-r--r--ext/json/lib/json/common.rb4
1 files changed, 0 insertions, 4 deletions
diff --git a/ext/json/lib/json/common.rb b/ext/json/lib/json/common.rb
index b5fbfcf05d..254ed0920b 100644
--- a/ext/json/lib/json/common.rb
+++ b/ext/json/lib/json/common.rb
@@ -236,10 +236,6 @@ module JSON
# deep.
class NestingError < ParserError; end
- # :stopdoc:
- class CircularDatastructure < NestingError; end
- # :startdoc:
-
# This exception is raised if a generator or unparser error occurs.
class GeneratorError < JSONError
attr_reader :invalid_object