Issue #21392 has been updated by mame (Yusuke Endoh). Status changed from Feedback to Assigned Assignee set to ima1zumi (Mari Imaizumi) Thank you, confirmed. @ima1zumi @tompng Can you take a look? ``` $ irb irb(main):001* module Color irb(main):002* CIELAB = Data.define(:l, :a, :b) do irb(main):003* def inspect irb(main):004* "CIELAB [%.4f%% %.4f %.4f]" % [l, a, b] irb(main):005* end irb(main):006* end irb(main):007> end => Color::CIELAB irb(main):008> Color::CIELAB[1,2,3] => #<data Color::CIELAB l=1, a=2, b=3> ``` ---------------------------------------- Bug #21392: Data classes do not allow overriding #inspect https://bugs.ruby-lang.org/issues/21392#change-113519 * Author: austin (Austin Ziegler) * Status: Assigned * Assignee: ima1zumi (Mari Imaizumi) * ruby -v: 3.4.4 * Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- I'm preparing a new version of Color and I have decided to make all of the colour classes Data classes. However, it does not appear that `#inspect` can be overridden: ```ruby module Color CIELAB = Data.define(:l, :a, :b) do def inspect "CIELAB [%.4f%% %.4f %.4f]" % [l, a, b] end end end p Color::CIELAB[1,2,3] # Expected => CIELAB[1.000% 2.000 3.000] # Actual #<data Color::CIELAB l=10, a=-125.0, b=20.5> ``` This feels like it should be permitted. -- https://bugs.ruby-lang.org/