Backport #1331: YAML misformats hash with ruby object as key

• Status: Closed
• Assignee: -

[bahuvrihi (Simon Chiang)]

=begin
YAML misformats the dump of hashes where the key is a user-defined ruby object. For instance:

class A; end
YAML.dump({A.new => :a})

Produces:

---

!ruby/object:A ? {}
: :a

Which cannot be reloaded as YAML because the question mark is in the wrong place. The correctly formatted YAML is:

---

? !ruby/object:A {}
: :a

I have attached a couple tests with a patch illustrating how to work around this problem using gsub. Obviously a string substitution is not a long term solution, but I hope it illustrates what needs to be fixed.
=end

[Confusion (Ivo Wever)]

=begin
This bug still exists in ruby 1.8.7 (2011-02-18 patchlevel 334). Is there a known fix or workaround that I can use? The gsub suggested by Simon seems a bit brittle.
=end

[jeremyevans0 (Jeremy Evans)]

• Tracker changed from Bug to Backport
• Project changed from Ruby 1.8 to Backport187
• Description updated (diff)
• Status changed from Open to Closed
• ruby -v deleted (ruby 1.8.6 (2008-03-03 patchlevel 114) [universal-darwin9.0])