From: Jano Svitok <jan.svitok@...>
Date: 2007-08-29T00:39:11+09:00
Subject: Re: problem with yaml

On 8/28/07, unbewusst <yvon.thoraval@gmail.com> wrote:
> i'm using a yaml file to save my preferences in a RubyCocoa
> application, however i get :
>
> /usr/lib/ruby/1.8/yaml.rb:347:in `allocate': allocator undefined for
> Data (TypeError)
>         from /usr/lib/ruby/1.8/yaml.rb:347:in `object_maker'
>         from /usr/lib/ruby/1.8/yaml/rubytypes.rb:36
>         from /usr/lib/ruby/1.8/yaml/rubytypes.rb:34:in `call'
>         from /Users/yt/work/RubyCocoa/eSync/build/Release/eSync.app/Contents/
> Resources/rb_main.rb:16:in `transfer'
>         from /usr/lib/ruby/1.8/yaml.rb:119:in `load'
>         from /usr/lib/ruby/1.8/yaml.rb:119:in `load'
>         from /Users/yt/work/RubyCocoa/eSync/build/Release/eSync.app/Contents/
> Resources/SyncDataSource.rb:55:in `initialize'
>
>
> line 55 :
>       o=YAML::load(File.open("#{PREFS_FILE}"))
>
>
> THE file :
>
> --- !ruby/object:Preferences
> deepness: 2
> root: !ruby/object:Folder
>   "__slave_nsobj__": !ruby/object:Data {}
>   enabled: -1
>   items:
>     - !ruby/object:Folder
>       "__slave_nsobj__": !ruby/object:Data {}
>       enabled: -1
>       items:
>         - !ruby/object:Folder
>           "__slave_nsobj__": !ruby/object:Data {}
>           enabled: true
>           items: []
>           name: Agenda
>           path: /Users/yt/Documents/OOo/Agenda
> [...]
>
>
> i even don't know where the lines ""__slave_nsobj__": !ruby/
> object:Data {}" are coming from...

Just a blind guess: yaml doesn't know how to (de)serialize binary data
for/from RubyCocoa extension. I guess Data type means binary data that
is opaque to ruby.
__slave_nsobj__ is a member attribute of Folder.

If you can look at yaml and RubyCocoa sources, you'd find more (e.g.
what is __slave...).