Bug #21313: `it` in rescue/ensure on prism

• Status: Assigned
• Assignee: prism
• Target version: -
• ruby -v: "ruby 3.4.1 (2024-12-25 revision 48d4efcb85) +PRISM [wasm32-wasi]"
• Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN

[ko1 (Koichi Sasada)]

1.times do
  raise
rescue
  p it
  #=> prism: false
  #=> parse.y: 0
end

it should return 0, shouldn't it?

demo:

parse.y: https://ruby.github.io/play-ruby/?code=p+RUBY_DESCRIPTION%0A%0A1.times+do%0A++raise%0Arescue%0A++p+it%0Aend%0A&options=%7B%22arguments%22%3A%5B%22--parser%3Dparse.y%22%5D%2C%22env%22%3A%7B%7D%7D

prism: https://ruby.github.io/play-ruby/?code=p+RUBY_DESCRIPTION%0A%0A1.times+do%0A++raise%0Arescue%0A++p+it%0Aend%0A&options=%7B%22arguments%22%3A%5B%5D%2C%22env%22%3A%7B%7D%7D

Same on ensure.

1.times do
  raise
ensure
  p it #=> prism: false
       #=> parse.y: 0
end

1.times do
  begin
    raise
  ensure
    p it #=> prism: false
         #=> parse.y: 0
  end
end

[hsbt (Hiroshi SHIBATA)]

• Status changed from Open to Assigned

[nicholasdower (Nick Dower)]

I encountered this issue today and attempted a fix: https://github.com/ruby/ruby/pull/13360

I hope that was appropriate.