`binding.eval` backtrace differente
Can somebody elaborate why there is different output for Ruby 2.7 vs Ruby 3.0?
$ ruby -v ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [x86_64-linux] $ ruby -e ' begin binding.eval(%|raise "oops"|) rescue Exception => exc puts exc.backtrace end ' -e:3:in `<main>' -e:3:in `eval' -e:3:in `<main>'
$ ruby -v ruby 3.0.0rc1 (2020-12-20 master 8680ae9cbd) [x86_64-linux] $ ruby -e ' begin binding.eval(%|raise "oops"|) rescue Exception => exc puts exc.backtrace end ' (eval):1:in `<main>' -e:3:in `eval' -e:3:in `<main>'
IOW the first line of backtrace is different. Is this expected? This is causing test failures:
Updated by shevegen (Robert A. Heiler) about 1 month ago
I think this is an intended change; it was explained via a link
to a comment in another issue (I think by mame or someone else,
where matz commented on reverting the behaviour). If I remember
the reason, the changed backtrace confused many ruby users over
the years, and it seemed better to go back to the state prior
to the change, hopefully lessening the confusion in the
(Not sure if NEWS mentions this, but if not then perhaps a link
should be there, or just a short explanation in NEWS itself.)
Updated by mame (Yusuke Endoh) about 1 month ago
b.eval(src, *b.source_location) will solve the issue.
However, #4352 focused on only
Kernel#eval. I was not aware about the behavior change of
Binding#eval. I've just added an explanation to NEWS.md at 4a18cc7f604c259415d933acd9fd00234733cab6.