* lib/yaml.rb (quick_emit): use combination of object_id and hash to

  identify repeated object references, since GC will reuse memory of
	objects during output of YAML. [ruby-Bugs-8548] [ruby-Bugs-3698]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13940 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/yaml.rb b/lib/yaml.rb
index fe8335c8f0..a8da42a321 100644
--- a/lib/yaml.rb
+++ b/lib/yaml.rb
@@ -384,6 +384,10 @@ module YAML
             else
                 emitter.reset( opts )
             end
+        oid =
+            case oid when Fixnum, NilClass; oid
+            else oid = "#{oid.object_id}-#{oid.hash}"
+            end
         out.emit( oid, &e )
 	end