From: Florian Frank <flori@...>
Date: 2008-03-01T09:12:07+09:00
Subject: Re: Monkeypatching is Destroying Ruby

Robert Dober schrieb:
>>  > I'd be at least a little interested in potentially offering developers
>>  > the chance to 'lock' their classes from monkey patches.
>>
>>  There are probably ways around this, but:
>>     
> Hmm I do not think that one can overrule freeze; I never found  a way,
> anyone else?
>   
main>> class A; end
 # => nil
main>> A.freeze
 # => A
main>> class A; def foo;end ;end
TypeError: can't modify frozen class
        from (irb):8
main>> A = A.dup
(irb):9: warning: already initialized constant A
 # => A
main>> class A; def foo;end ;end
 # => nil

This doesn't work, if $SAFE == 4, though.