Ruby » Ruby master

Bug #19164

Updated by byroot (Jean Boussier) over 1 year ago

The following snippet showcase the bug. It passes on 3.1 and older, but fails on 3.2.0 

 ```ruby 
 klass = Class.new 
 klass.prepend(Module.new) 

 klass.new.freeze 
 klass.define_method(:bar) klass.class_eval do 
   define_method(:bar) {} # works 
 klass.remove_method(:bar) 
   remove_method(:bar) # raise FrozenError 
 end 
 ``` 

 Bisecting with this script points me to [e7b1ff984fde859a7778dec564731eb79392406f](https://github.com/ruby/ruby/commit/e7b1ff984fde859a7778dec564731eb79392406f), which suggest some part of the codebase might be misusing some user flags. 

 I have a patch that fix this script but I doubt it's the right fix, I'll be working with @jemmai and @tenderlovemaking to find a proper fix. 

 I'm opening this ticket to make sure it's addressed before the 3.2.0 final release.

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