YAML.dump isn't dumping classes like MRI

Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Not A Bug
Affects Version/s: JRuby 1.6.6
Fix Version/s: None
Component/s: Ruby 1.9.3
Labels:
None

Testcase included:
yes
Number of attachments :
1

Description

Found when I was trying to get mperham/sidekiq up on Travis with JRuby 1.6.6.

MRI 1.9.3 will output the attached script with the correct YAML representation of the array (var obj)

---
- !ruby/class 'MyMailer'
- :greetings
- - 1
  - 2

JRuby throws a TypeError

TypeError: can't dump anonymous class Class
  visit_Class at /home/jesse/.rvm/rubies/jruby-1.6.6/lib/ruby/1.9/psych/visitors/yaml_tree.rb:211
     __send__ at org/jruby/RubyBasicObject.java:1700
         send at org/jruby/RubyKernel.java:2099
       accept at /home/jesse/.rvm/rubies/jruby-1.6.6/lib/ruby/1.9/psych/visitors/yaml_tree.rb:63
  visit_Array at /home/jesse/.rvm/rubies/jruby-1.6.6/lib/ruby/1.9/psych/visitors/yaml_tree.rb:246
         each at org/jruby/RubyArray.java:1614
  visit_Array at /home/jesse/.rvm/rubies/jruby-1.6.6/lib/ruby/1.9/psych/visitors/yaml_tree.rb:246
     __send__ at org/jruby/RubyBasicObject.java:1700
         send at org/jruby/RubyKernel.java:2099
       accept at /home/jesse/.rvm/rubies/jruby-1.6.6/lib/ruby/1.9/psych/visitors/yaml_tree.rb:63
           << at /home/jesse/.rvm/rubies/jruby-1.6.6/lib/ruby/1.9/psych/visitors/yaml_tree.rb:36
         dump at /home/jesse/.rvm/rubies/jruby-1.6.6/lib/ruby/1.9/psych.rb:165
       (root) at scratch.rb:12

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Attachments

scratch.rb

19/Feb/12 4:12 PM

0.2 kB

Jesse Cooke

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Jesse Cooke added a comment - 19/Feb/12 4:56 PM

Thanks for reformatting. I'm unfamiliar with jira.

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Jesse Cooke added a comment - 19/Feb/12 4:56 PM Thanks for reformatting. I'm unfamiliar with jira.

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Charles Oliver Nutter added a comment - 20/Feb/12 12:15 PM

We behave correctly according to 1.9.2, which is the version of MRI that JRuby 1.6.x aims for. Master is 1.9.3 compatible, and does what you expect.

In Syck:

system ~/projects/jruby2 $ ruby1.9.2 ~/Downloads/scratch.rb 
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:6:in `to_yaml': can't dump anonymous class Class (TypeError)
	from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:114:in `node_export'
	from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:114:in `add'
	from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:114:in `block (3 levels) in to_yaml'
	from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:113:in `each'
	from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:113:in `block (2 levels) in to_yaml'
	from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:112:in `seq'
	from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:112:in `block in to_yaml'
	from /usr/local/lib/ruby/1.9.1/syck.rb:401:in `call'
	from /usr/local/lib/ruby/1.9.1/syck.rb:401:in `emit'
	from /usr/local/lib/ruby/1.9.1/syck.rb:401:in `quick_emit'
	from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:111:in `to_yaml'
	from /usr/local/lib/ruby/1.9.1/syck.rb:119:in `dump'
	from /Users/headius/Downloads/scratch.rb:11:in `<main>'

and Psych:

system ~/projects/jruby2 $ rvm 1.9.2 do ruby ~/Downloads/scratch.rb 
/Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:211:in `visit_Class': can't dump anonymous class Class (TypeError)
	from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:63:in `accept'
	from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:246:in `block in visit_Array'
	from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:246:in `each'
	from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:246:in `visit_Array'
	from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:63:in `accept'
	from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:36:in `<<'
	from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych.rb:165:in `dump'
	from /Users/headius/Downloads/scratch.rb:11:in `<main>'

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Charles Oliver Nutter added a comment - 20/Feb/12 12:15 PM We behave correctly according to 1.9.2, which is the version of MRI that JRuby 1.6.x aims for. Master is 1.9.3 compatible, and does what you expect. In Syck: system ~/projects/jruby2 $ ruby1.9.2 ~/Downloads/scratch.rb /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:6:in `to_yaml': can't dump anonymous class Class (TypeError) from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:114:in `node_export' from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:114:in `add' from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:114:in `block (3 levels) in to_yaml' from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:113:in `each' from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:113:in `block (2 levels) in to_yaml' from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:112:in `seq' from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:112:in `block in to_yaml' from /usr/local/lib/ruby/1.9.1/syck.rb:401:in `call' from /usr/local/lib/ruby/1.9.1/syck.rb:401:in `emit' from /usr/local/lib/ruby/1.9.1/syck.rb:401:in `quick_emit' from /usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:111:in `to_yaml' from /usr/local/lib/ruby/1.9.1/syck.rb:119:in `dump' from /Users/headius/Downloads/scratch.rb:11:in `<main>' and Psych: system ~/projects/jruby2 $ rvm 1.9.2 do ruby ~/Downloads/scratch.rb /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:211:in `visit_Class': can't dump anonymous class Class (TypeError) from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:63:in `accept' from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:246:in `block in visit_Array' from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:246:in `each' from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:246:in `visit_Array' from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:63:in `accept' from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych/visitors/yaml_tree.rb:36:in `<<' from /Users/headius/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/psych.rb:165:in `dump' from /Users/headius/Downloads/scratch.rb:11:in `<main>'

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Jesse Cooke added a comment - 20/Feb/12 12:37 PM

I thought 1.6.6 was up to 1.9.3 but I was wrong. We'll wait until 1.7 to support JRuby. Thanks for the clarification!

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Jesse Cooke added a comment - 20/Feb/12 12:37 PM I thought 1.6.6 was up to 1.9.3 but I was wrong. We'll wait until 1.7 to support JRuby. Thanks for the clarification!

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Anil Wadghule added a comment - 02/Apr/12 1:29 PM

This issue persists on JRuby 1.6.7 1.9 mode

anil.wadghule@Anil-Wadghule-Mac ~/Code/jruby &#955; rvm use ruby-1.9.3
Using /Users/anil.wadghule/.rvm/gems/ruby-1.9.3-p125
anil.wadghule@Anil-Wadghule-Mac ~/Code/jruby &#955; ruby dump_anonymous_class.rb 
---
- !ruby/class 'MyMailer'
- :greetings
- - 1
  - 2
anil.wadghule@Anil-Wadghule-Mac ~/Code/jruby &#955; rvm use jruby
Using /Users/anil.wadghule/.rvm/gems/jruby-1.6.7
anil.wadghule@Anil-Wadghule-Mac ~/Code/jruby &#955; export JRUBY_OPTS=--1.9
anil.wadghule@Anil-Wadghule-Mac ~/Code/jruby &#955; ruby dump_anonymous_class.rb 
TypeError: can't dump anonymous class Class
  visit_Class at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych/visitors/yaml_tree.rb:211
     __send__ at org/jruby/RubyBasicObject.java:1704
         send at org/jruby/RubyKernel.java:2101
       accept at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych/visitors/yaml_tree.rb:63
  visit_Array at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych/visitors/yaml_tree.rb:246
         each at org/jruby/RubyArray.java:1615
  visit_Array at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych/visitors/yaml_tree.rb:246
     __send__ at org/jruby/RubyBasicObject.java:1704
         send at org/jruby/RubyKernel.java:2101
       accept at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych/visitors/yaml_tree.rb:63
           << at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych/visitors/yaml_tree.rb:36
         dump at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych.rb:165
       (root) at dump_anonymous_class.rb:11

It should behave like Ruby 1.9.3 right?

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Anil Wadghule added a comment - 02/Apr/12 1:29 PM This issue persists on JRuby 1.6.7 1.9 mode anil.wadghule@Anil-Wadghule-Mac ~/Code/jruby λ rvm use ruby-1.9.3 Using /Users/anil.wadghule/.rvm/gems/ruby-1.9.3-p125 anil.wadghule@Anil-Wadghule-Mac ~/Code/jruby λ ruby dump_anonymous_class.rb --- - !ruby/class 'MyMailer' - :greetings - - 1 - 2 anil.wadghule@Anil-Wadghule-Mac ~/Code/jruby λ rvm use jruby Using /Users/anil.wadghule/.rvm/gems/jruby-1.6.7 anil.wadghule@Anil-Wadghule-Mac ~/Code/jruby λ export JRUBY_OPTS=--1.9 anil.wadghule@Anil-Wadghule-Mac ~/Code/jruby λ ruby dump_anonymous_class.rb TypeError: can't dump anonymous class Class visit_Class at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych/visitors/yaml_tree.rb:211 __send__ at org/jruby/RubyBasicObject.java:1704 send at org/jruby/RubyKernel.java:2101 accept at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych/visitors/yaml_tree.rb:63 visit_Array at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych/visitors/yaml_tree.rb:246 each at org/jruby/RubyArray.java:1615 visit_Array at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych/visitors/yaml_tree.rb:246 __send__ at org/jruby/RubyBasicObject.java:1704 send at org/jruby/RubyKernel.java:2101 accept at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych/visitors/yaml_tree.rb:63 << at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych/visitors/yaml_tree.rb:36 dump at /Users/anil.wadghule/.rvm/rubies/jruby-1.6.7/lib/ruby/1.9/psych.rb:165 (root) at dump_anonymous_class.rb:11 It should behave like Ruby 1.9.3 right?

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Anil Wadghule added a comment - 02/Apr/12 1:38 PM

I assumed JRuby 1.6.7 is upto 1.9.3. But came to know from RUBY_DESCRIPTION it is upto ruby-1.9.2-p312.

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Anil Wadghule added a comment - 02/Apr/12 1:38 PM I assumed JRuby 1.6.7 is upto 1.9.3. But came to know from RUBY_DESCRIPTION it is upto ruby-1.9.2-p312.

People

Assignee:

Charles Oliver Nutter

Reporter:

Jesse Cooke

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Dates

Created:

19/Feb/12 4:12 PM

Updated:

03/Aug/12 2:36 PM

Resolved:

20/Feb/12 12:15 PM