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Bug #20337

open

Complex#inspect mutates the string returned by `real.inspect`

Added by Eregon (Benoit Daloze) 3 months ago. Updated 3 months ago.

Status:
Open
Assignee:
-
Target version:
-
ruby -v:
ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x86_64-linux]
[ruby-core:117161]

Description

irb(main):001:0> n = Numeric.new
=> #<Numeric:0x00007f81b2308578>
irb(main):004:0> class Numeric; def inspect = super.freeze; end
=> :inspect
irb(main):006:0> Complex(n, 1).inspect
(irb):6:in `inspect': can't modify frozen String: "#<Numeric:0x00007f81b2308578>" (FrozenError)
        from (irb):6:in `<main>'                                                                        
        from /home/eregon/.rubies/ruby-3.2.2/lib/ruby/gems/3.2.0/gems/irb-1.6.2/exe/irb:11:in `<top (required)>'
        from /home/eregon/.rubies/ruby-3.2.2/bin/irb:25:in `load'                                       
        from /home/eregon/.rubies/ruby-3.2.2/bin/irb:25:in `<main>'             

It feels wrong to mutate the result of inspect at least in general, for instance true.inspect is frozen.

Discovered by https://github.com/ruby/spec/pull/1142

Updated by Eregon (Benoit Daloze) 3 months ago

Same for Complex#to_s.

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