undefined methods are not preserved when a module/class is dup'ed.
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Key: JRUBY-948
URL: http://jira.codehaus.org/browse/JRUBY-948
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Reporter: Bill Dortch
undefined methods (or more accurately, their undefined-ness) are not preserved
when a module/class is dup'ed. Applies to both class/module methods and
instance methods.
MRI:
{noformat}
>> class A
>> undef_method :id
>> (class<<self;self;end).send(:undef_method,:id)
>> end
=> #<Class:A>
>> A.id
NoMethodError: undefined method `id' for A:Class
from (irb):5
>> A.new.id
NoMethodError: undefined method `id' for #<A:0x2c17fe4>
from (irb):6
>> Adup = A.dup
=> Adup
>> Adup.id
NoMethodError: undefined method `id' for Adup:Class
from (irb):8
>> Adup.new.id
NoMethodError: undefined method `id' for #<Adup:0x2c1445c>
from (irb):9
{noformat}
JRuby:
{noformat}
>> class A
>> undef_method :id
>> (class<<self;self;end).send(:undef_method,:id)
>> end
=> #<Class:A>
>> A.id
NoMethodError: undefined or inaccessible method `id' for A:Class
from (irb):1:in `method_missing'
from (irb):1:in `binding'
>> A.new.id
NoMethodError: undefined or inaccessible method `id' for #<A:0x163956>
from (irb):1:in `method_missing'
from (irb):1:in `binding'
>> Adup = A.dup
=> Adup
>> Adup.id
(irb):1 warning: Object#id will be deprecated; use Object#object_id
=> 6
>> Adup.new.id
(irb):1 warning: Object#id will be deprecated; use Object#object_id
=> 8
{noformat}
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