Hashcodes for Hash objects break compatability with MRI
-------------------------------------------------------
Key: JRUBY-3682
URL: http://jira.codehaus.org/browse/JRUBY-3682
Project: JRuby
Issue Type: Bug
Environment: Linux(Ubuntu)
Reporter: Tyler Jennings
Assignee: Thomas E Enebo
In jruby trunk:
irb(main):003:0> {}.hash == {}.hash
=> false
In MRI 1.8.7:
irb(main):008:0> {}.hash == {}.hash
=> true
This inconsistency breaks things in odd places, like some memoization libraries
in Rails. Using one of these libraries in JRuby for a method that takes a hash
as a parameter causes a new cache to be generated for every call to the method
even when the parameters are identical. The inevitable result is an
OutOfMemoryException.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://jira.codehaus.org/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe from this list, please visit:
http://xircles.codehaus.org/manage_email
