SyntaxError: unexpected ... when the parent method is not forwarding

[ksss]

Problem

SyntaxError: (eval at /Users/ksss/src/github.com/ksss/orthoses/lib/orthoses/call_tracer/capturable.rb:53):1: syntax error found (SyntaxError)
> 1 | __extract_rest_parameters__(...)
    |                             ^~~ unexpected ... when the parent method is not forwarding

Conditions

Ruby v3.4.1

Cause

This is a bug in Prism.
https://bugs.ruby-lang.org/issues/21031

Workaround

Use parse.y

• ruby --parser=parse.y orthoses.rb
• RUBYOPT='--parser=parse.y' bundle exec rake