From: nagachika00@... Date: 2021-08-01T09:27:01+00:00 Subject: [ruby-core:104738] [Ruby master Bug#17725] Prepend breaks ability to override optimized methods Issue #17725 has been updated by nagachika (Tomoyuki Chikanaga). I think fa0279d947c3962c3f8c32852278d3ebb964cb19 should be backported too. But it could introduce a tiny incompatibility. I'd like to investigate the another workarounds of the issue. ---------------------------------------- Bug #17725: Prepend breaks ability to override optimized methods https://bugs.ruby-lang.org/issues/17725#change-93074 * Author: joshuadreed (Josh Reed) * Status: Closed * Priority: Normal * ruby -v: ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-darwin19] * Backport: 2.5: DONTNEED, 2.6: DONTNEED, 2.7: DONTNEED, 3.0: REQUIRED ---------------------------------------- Prepending any module to `String` and `Hash` (and possibly other or all classes?) blocks the ability to `alias` As an example: ``` ruby module Dummy; end # String.prepend(Dummy) class String alias_method(:old_plus, :+) def + other puts 'blah blah' old_plus(other) end end 'a' + 'b' > blah blah ``` ``` ruby module Dummy; end String.prepend(Dummy) class String alias_method(:old_plus, :+) def + other puts 'blah blah' old_plus(other) end end 'a' + 'b' > ``` Prepending after an `alias` does not affect the previous `alias` -- https://bugs.ruby-lang.org/ Unsubscribe: