`IPAddr#freeze` is broken

[Tietew]

After freezing IPAddr instance, a lot of methods die with FrozenError: can't modify frozen IPAddr.

$ RBENV_VERSION=3.1.0-dev irb
ruby 3.1.0dev (2021-12-08T23:58:25Z master 45c5794d32) [x86_64-linux]
irb(main):001:0> require 'ipaddr'
=> true
irb(main):002:0> IPAddr.new('127.0.0.1').freeze.to_range
/usr/local/anyenv/envs/rbenv/versions/3.1.0-dev/lib/ruby/3.1.0/ipaddr.rb:509:in `set': can't modify frozen IPAddr: #<IPAddr: IPv4:127.0.0.1/255.255.255.255> (FrozenError)
        from /usr/local/anyenv/envs/rbenv/versions/3.1.0-dev/lib/ruby/3.1.0/ipaddr.rb:413:in `to_range'
irb(main):003:0> IPAddr.new('127.0.0.1').freeze.include?('127.0.0.1')
/usr/local/anyenv/envs/rbenv/versions/3.1.0-dev/lib/ruby/3.1.0/ipaddr.rb:509:in `set': can't modify frozen IPAddr: #<IPAddr: IPv4:127.0.0.1/255.255.255.255> (FrozenError)
        from /usr/local/anyenv/envs/rbenv/versions/3.1.0-dev/lib/ruby/3.1.0/ipaddr.rb:413:in `to_range'
        from /usr/local/anyenv/envs/rbenv/versions/3.1.0-dev/lib/ruby/3.1.0/ipaddr.rb:178:in `include?'
irb(main):004:0> IPAddr.new('127.0.0.1').freeze.succ
/usr/local/anyenv/envs/rbenv/versions/3.1.0-dev/lib/ruby/3.1.0/ipaddr.rb:509:in `set': can't modify frozen IPAddr: #<IPAddr: IPv4:127.0.0.1/255.255.255.255> (FrozenError)
        from /usr/local/anyenv/envs/rbenv/versions/3.1.0-dev/lib/ruby/3.1.0/ipaddr.rb:377:in `succ'

It seems that clone.set() in these methods should be clone(freeze: false).set() or dup.set()

[esparta]

IMO this is a valid use case meaning the bug should be fixed.

I went ahead and got a proposal to patch it here: #36

[ioquatix]

Thanks for this, feel free to close this issue if this was the only case where it was broken. Thanks!

[respire]

Hello, I met this issue in ruby-3.1 release.
Maybe #36 is not in 3.1 stdlib ipaddr 1.2.3?

gem info ipaddr

*** LOCAL GEMS ***

ipaddr (1.2.3)
    Authors: Akinori MUSHA, Hajimu UMEMOTO
    Homepage: https://github.com/ruby/ipaddr
    Licenses: Ruby, BSD-2-Clause
    Installed at (default): /home/ubuntu/.rbenv/versions/3.1.0/lib/ruby/gems/3.1.0

    A class to manipulate an IP address in ruby```

I can temporarily solve it by putting this line at my gemfile

gem 'ipaddr', git: 'https://github.com/ruby/ipaddr.git', ref: '77fe1fca0abb56f7f07725c0a3803d53a315c853'

[ioquatix]

I don't know why this isn't synchronised.

[respire]

https://bugs.ruby-lang.org/issues/18570

now in ruby 3.1.1
https://www.ruby-lang.org/en/news/2022/02/18/ruby-3-1-1-released/

I have upgraded my application and verified it works

ruby -v
ruby 3.1.1p18 (2022-02-18 revision 53f5fc4236) [x86_64-linux]
bundle info ipaddr
  * ipaddr (1.2.4)
        Summary: A class to manipulate an IP address in ruby
        Homepage: https://github.com/ruby/ipaddr
        Path: $HOME/.rbenv/versions/3.1.1/lib/ruby/gems/3.1.0/gems/ipaddr-1.2.4
        Default Gem: yes

[hsbt]

ipaddr-1.2.4 is contained 3.1.1.

ruby/ruby@7315972