From: ryand-ruby@...
Date: 2021-08-14T04:20:07+00:00
Subject: [ruby-core:104916] [Ruby master Bug#18075] Crasher using ripper +	yydebug

Issue #18075 has been reported by zenspider (Ryan Davis).

----------------------------------------
Bug #18075: Crasher using ripper + yydebug
https://bugs.ruby-lang.org/issues/18075

* Author: zenspider (Ryan Davis)
* Status: Open
* Priority: Normal
* Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN
----------------------------------------
`method `inspect' called on unexpected T_NODE object` via the following with `-d` (see output at end):

```
#!/usr/bin/env ruby -wvs

$d ||= false

require "ripper/sexp"

src = "'woot'"

rip = Ripper::SexpBuilderPP.new src
rip.yydebug = $d

p rip.parse # boom

__END__
############################################################
% % multiruby ./ripper_bug.rb
...
Passed: 2.3.8, 2.4.9, 2.5.8, 2.6.6, 2.7.3, 3.0.1 master
Failed:

############################################################
% multiruby ./ripper_bug.rb -d
...
Entering state 299
./ripper_bug.rb:11:in `parse': method `inspect' called on unexpected T_NODE object (0x000000012f8db898 flags=0x1e1b) (NotImplementedError)
        from ./ripper_bug.rb:11:in `<main>'

RESULT = pid 24703 exit 1

TOTAL RESULT = 3 failures out of 6

Passed: 2.3.8, 2.4.9, 2.5.8
Failed: 2.6.6, 2.7.3, 3.0.1, master
```

Exists on 2.6 and up



-- 
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