From: Eric Hodel <drbrain@...7.net>
Date: 2003-09-23T12:10:59-07:00
Subject: Re: Creating classes with from YAML?


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David Garamond (lists@zara.6.isreserved.com) wrote:

> Remembering that all classes are instances of the Class class, is this=20
> possible? I want to create some class named, say C1, which is empty (or=
=20
> perhaps with one or two class instance vars) by loading a YAML document.=
=20
> I can't seem to create instances of Class class in YAML, while I can=20
> easily do this in irb:

irb(main):002:0> 5.to_yaml
=3D> "--- 5"
irb(main):003:0> Class.to_yaml
ArgumentError: can't dump anonymous class Class
        from /usr/local/lib/ruby/1.8/yaml/rubytypes.rb:8:in `to_yaml'
        from (irb):3
irb(main):004:0> class Foo; end
=3D> nil
irb(main):005:0> Foo.to_yaml
ArgumentError: can't dump anonymous class Class
        from /usr/local/lib/ruby/1.8/yaml/rubytypes.rb:8:in `to_yaml'
        from (irb):5

Does not appear possible to do with Yaml, but you can with Marshal:

irb(main):007:0> Marshal.dump(Foo)
=3D> "\004\010c\010Foo"


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Eric Hodel - drbrain@segment7.net - http://segment7.net
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