[MacRuby-devel] [MacRuby] #549: Class variables are not initialised properly.

[MacRuby]

#549: Class variables are not initialised properly.
-------------------------------------+--------------------------------------
 Reporter:  sorin.ionescu@…          |       Owner:  lsansonetti@…        
     Type:  defect                   |      Status:  new                  
 Priority:  blocker                  |   Milestone:  MacRuby 0.5          
Component:  MacRuby                  |    Keywords:  class, instance      
-------------------------------------+--------------------------------------
Description changed by martinlagardette@…:

Old description:

> The mime-types gem has a class and an instance interface. The class
> interface uses an instance of itself. However, it doesn’t work in
> MacRuby. It does not seem to be initialised properly. I have included in
> a sample code with the expected behaviour. Changing `@__types__` to
> `@@__types__` will not fix it.
>
> {{{
> #!/usr/bin/env macruby
>
> class Test
>   def initialize()
>     @foo = true
>   end
>
>   def add(something)
>     puts "Is foo nil: #{@foo.nil?}"
>   end
>
>   @__types__ = self.new()
>
>   def self.add(something)
>     @__types__.add(something)
>   end
> end
>
> t = Test.new
> t.add(3)
> Test.add(4)
> }}}
>
> Output (MacRuby 0.5)
> {{{
> Is foo nil: false
> Is foo nil: true
> }}}
> Expected (Ruby 1.9.1/1.8.7)
> {{{
> Is foo nil: false
> Is foo nil: false
> }}}

New description:

 The mime-types gem has a class and an instance interface. The class
 interface uses an instance of itself. However, it doesn’t work in MacRuby.
 It does not seem to be initialised properly. I have included in a sample
 code with the expected behaviour. Changing `@__types__` to `@@__types__`
 will not fix it.

 {{{
 class MacRubyInitTest
   def initialize
     @foo = true
   end

   def add
     p self
     puts "@foo = " + @foo.inspect
   end

   @__types__ = self.new()

   def self.add
     @__types__.add
   end
 end

 t = MacRubyInitTest.new
 t.add
 MacRubyInitTest.add
 }}}

 Output (MacRuby 0.5)
 {{{
 <MacRubyInitTest:0x200024d80 @foo=true>
 @foo = true
 <MacRubyInitTest:0x200024e00 @foo=true>
 @foo = nil
 }}}
 Expected (Ruby 1.9.1/1.8.7)
 {{{
 #<MacRubyInitTest:0x00000100847920 @foo=true>
 @foo = true
 #<MacRubyInitTest:0x00000100847a70 @foo=true>
 @foo = true
 }}}

--

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Ticket URL: <http://www.macruby.org/trac/ticket/549#comment:4>
MacRuby <http://macruby.org/>