[MacRuby-devel] [MacRuby] #796: Dispatch::Queue.main created with a different Queue class?!?

[MacRuby]

#796: Dispatch::Queue.main created with a different Queue class?!?
----------------------------------------+-----------------------------------
 Reporter:  ernest.prabhakar@…          |       Owner:  lsansonetti@…        
     Type:  defect                      |      Status:  new                  
 Priority:  major                       |   Milestone:                       
Component:  MacRuby                     |    Keywords:                       
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 The "Dispatch::Queue.main" fails the equality check in gcd.c, even though
 it appears identical.

 $ macruby -r dispatch -e 'Dispatch::Job.new {sleep
 1}.join(Dispatch::Queue.main) {puts "!"}'

 /Library/Frameworks/MacRuby.framework/Versions/0.7/usr/lib/ruby/1.9.2/dispatch/job.rb:28:in
 `join:': expected class of [0x2000c1160] to be Dispatch::Queue
 [0x20004c8a0], but got Dispatch::Queue [0x2000c1120] (ArgumentError)
         from /Users/Shared/MacRuby-trunk/-e:1:in `<main>'

 That is, the reported name is the same, but the pointer differs.

 Ruby itself seems to think the classes are the same:

 $ macruby -r dispatch -e "p Dispatch::Queue.main.class ==
 Dispatch::Queue.concurrent.class"
 true


 Concurrent queues work fine:

 $ macruby -r dispatch -e 'Dispatch::Job.new {sleep
 1}.join(Dispatch::Queue.concurrent) {puts "!"}'

 as do private queues:

 $ macruby -r dispatch -e 'Dispatch::Job.new {sleep
 1}.join(Dispatch::Queue.new("1")) {puts "!"}'

  I don't know if the problems is the class-equality check, or how the main
 queue gets a class assigned.

-- 
Ticket URL: <http://www.macruby.org/trac/ticket/796>
MacRuby <http://macruby.org/>