https://git.ruby-lang.org/ruby.git/commit/?id=8bfd4dd4e1

From 8bfd4dd4e15a9ac3a308c3c45db629e74fae9b0c Mon Sep 17 00:00:00 2001
From: Yusuke Endoh <mame@r...>
Date: Mon, 14 Nov 2022 14:36:24 +0900
Subject: [ruby/error_highlight] Enable ErrorHighlight for
 TypeError/ArgumentError only after Ruby 3.2

... because changing TypeError#message and ArgumentError#message is
highly incompatible.

https://github.com/ruby/error_highlight/commit/39aa897c7a
---
 lib/error_highlight/core_ext.rb | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/error_highlight/core_ext.rb b/lib/error_highlight/core_ext.rb
index 00d5671648..b69093f74e 100644
--- a/lib/error_highlight/core_ext.rb
+++ b/lib/error_highlight/core_ext.rb
@@ -37,6 +37,11 @@ module ErrorHighlight https://github.com/ruby/ruby/blob/trunk/lib/error_highlight/core_ext.rb#L37
   end
 
   NameError.prepend(CoreExt)
-  TypeError.prepend(CoreExt)
-  ArgumentError.prepend(CoreExt)
+
+  if Exception.method_defined?(:detailed_message)
+    # ErrorHighlight is enabled for TypeError and ArgumentError only when Exception#detailed_message is available.
+    # This is because changing ArgumentError#message is highly incompatible.
+    TypeError.prepend(CoreExt)
+    ArgumentError.prepend(CoreExt)
+  end
 end
-- 
cgit v1.2.3


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