Error with open-uri (instance_eval?)

Ruby Development
1

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% ruby -ropen-uri -ve ‘open(“http://www.ruby-lang.org/”)’
ruby 1.9.0 (2008-01-08 revision 0) [i386-netbsdelf]
/home/usa/ruby/lib/ruby/1.9.0/open-uri.rb:411: warning: instance
variable @meta not initialized
/home/usa/ruby/lib/ruby/1.9.0/open-uri.rb:411:in meta_add_field': undefined method []=’ for nil:NilClass (NoMethodError)
from /home/usa/ruby/lib/ruby/1.9.0/open-uri.rb:326:in block in open_http' from /home/usa/ruby/lib/ruby/1.9.0/net/http.rb:1297:in block in
each_header’
from /home/usa/ruby/lib/ruby/1.9.0/net/http.rb:1296:in each' from /home/usa/ruby/lib/ruby/1.9.0/net/http.rb:1296:in each_header’
from /home/usa/ruby/lib/ruby/1.9.0/open-uri.rb:326:in
open_http' from /home/usa/ruby/lib/ruby/1.9.0/open-uri.rb:735:in buffer_open’
from /home/usa/ruby/lib/ruby/1.9.0/open-uri.rb:197:in block in open_loop' from /home/usa/ruby/lib/ruby/1.9.0/open-uri.rb:195:in catch’
from /home/usa/ruby/lib/ruby/1.9.0/open-uri.rb:195:in
open_loop' from /home/usa/ruby/lib/ruby/1.9.0/open-uri.rb:141:in open_uri’
from /home/usa/ruby/lib/ruby/1.9.0/open-uri.rb:637:in open' from /home/usa/ruby/lib/ruby/1.9.0/open-uri.rb:33:in open’
from -e:1:in `’

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2

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At Tue, 8 Jan 2008 18:19:29 +0900,
U.Nakamura wrote:

open-uri.rbe$B$Ne(B386e$B9TL$+$i$Ne(Binstance_evale$B$r$d$a$Fe(Binstance_variable_set
e$B$KJQ$($k$H@5>o$KF0:n$9$k$N$G!“e(Binstance_evale$B$,$^$:$$$N$@$H;W$$e(B
e$B$^$9$,!”$h$/$o$+$j$^$;$s!#e(B

Tempfilee$B$,e(BDelegateClass(File)e$B$Ge(Binstance_evale$B$,<B9T$5$l$k%%V%8%’%/%H$He(B
meta_add_fielde$B$,<B9T$5$l$k%%V%8%’%/%H$,$:$l$F$7$^$&$N$,860x$N$h$&$G$9!#e(B

require “delegate”
module M
attr_reader :m
end
obj = DelegateClass(Array).new([])
obj.instance_eval { @m = :m }
obj.extend M
p obj.m

p obj.class
p Object.instance_method(:class).bind(obj).call

3

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In message “[ruby-dev:33116] Re: error with open-uri (instance_eval?)”
on Jan.15,2008 16:02:24, [email protected] wrote:
| > open-uri.rbe$B$Ne(B386e$B9TL$+$i$Ne(Binstance_evale$B$r$d$a$Fe(Binstance_variable_set
| > e$B$KJQ$($k$H@5>o$KF0:n$9$k$N$G!“e(Binstance_evale$B$,$^$:$$$N$@$H;W$$e(B
| > e$B$^$9$,!”$h$/$o$+$j$^$;$s!#e(B
|
| Tempfilee$B$,e(BDelegateClass(File)e$B$Ge(Binstance_evale$B$,<B9T$5$l$k%%V%8%'%/%H$He(B
| meta_add_fielde$B$,<B9T$5$l$k%%V%8%'%/%H$,$:$l$F$7$^$&$N$,860x$N$h$&$G$9!#e(B

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e$B$$$$$s$G$7$g$&$+e(B…

Index: lib/delegate.rb

— lib/delegate.rb (revision 15059)
+++ lib/delegate.rb (working copy)
@@ -267,6 +267,7 @@ def DelegateClass(superclass)
:id, :object_id, :send, :public_send, :respond_to?, :send,
:==, :equal?, :initialize, :method_missing, :getobj,
:setobj,
:clone, :dup, :marshal_dump, :marshal_load, :instance_eval,
:instance_exec,

  • :extend,
    ]
    klass.module_eval {
    include Delegator::MethodDelegation

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In message “Re: [ruby-dev:33117] Re: error with open-uri
(instance_eval?)”
on Tue, 15 Jan 2008 17:12:31 +0900, “U.Nakamura”
[email protected] writes:

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