From: Michael Campbell <michael_s_campbell@...>
Date: 2003-06-23T22:10:38+09:00
Subject: Re: Marshal bug?

--- Dave Thomas <dave@pragprog.com> wrote:
> Anders Borch wrote:
> > Hi!
> > 
> > why is this happening to me:
> > 
> > $ irb
> > irb(main):001:0> a=File.new('somefile','r')
>                                            ^^  read-only file
> > => #<File:0xa052078>
> > irb(main):002:0> Marshal.dump(a.stat)
> > TypeError: can't dump File::Stat
> >         from (irb):2:in `dump'
> >         from (irb):2
> > irb(main):003:0>


Maybe I misread, but I think he was asking why a.stat instance
couldn't be marshalled, not why you couldn't marshal to the file
referenced by 'a', no?

Changing 'r' to 'w' above anyway yields (for me):

bash-2.05b$ cat tmp.rb
a=File.new('somefile','w')
Marshal.dump(a.stat)

bash-2.05b$ ruby -v
ruby 1.8.0 (2003-05-26) [i386-mswin32]

bash-2.05b$ ruby tmp.rb
tmp.rb:2:in `dump': class File::Stat needs to have instance method
`_dump_data' (TypeError)
	from tmp.rb:2


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