[ruby-core:118678] [Ruby master Bug#20649] Ripper fails to tokenize `def f; (x)::A =`
From:
"nobu (Nobuyoshi Nakada) via ruby-core" <ruby-core@...>
Date:
2024-07-24 12:32:43 UTC
List:
ruby-core #118678
Issue #20649 has been updated by nobu (Nobuyoshi Nakada).
https://github.com/ruby/ruby/pull/11235
----------------------------------------
Bug #20649: Ripper fails to tokenize `def f; (x)::A =`
https://bugs.ruby-lang.org/issues/20649#change-109213
* Author: tompng (tomoya ishida)
* Status: Open
* ruby -v: ruby 3.4.0dev (2024-07-24T05:44:32Z master e642ddf7ae) [x86_64-linux]
* Backport: 3.1: REQUIRED, 3.2: REQUIRED, 3.3: REQUIRED
----------------------------------------
Ripper fails to tokenize some dynamic constant assignment syntax error code.
`''::A=` `(x)::A=` `(x).y::Z=` `[]::A=` `{}::A=` ``` ``::A=``` `//::A=` `%()::A=` in method body seems to fail.
Same for `for ''::A in` and `rescue => ''::A;` in method body.
~~~ruby
Ripper.tokenize 'def f; (x)::A ='
#=>
/opt/ruby/lib/ruby/3.4.0+0/ripper/lexer.rb:245:in 'Ripper::Lexer#on_error2': undefined method 'pos' for nil (NoMethodError)
@errors.push Elem.new(elem.pos, __callee__, elem.tok, elem.state, mesg)
^^^^
from /opt/ruby/lib/ruby/3.4.0+0/ripper/lexer.rb:176:in 'Ripper#parse'
from /opt/ruby/lib/ruby/3.4.0+0/ripper/lexer.rb:176:in 'Ripper::Lexer#parse'
from /opt/ruby/lib/ruby/3.4.0+0/ripper/lexer.rb:150:in 'Ripper::Lexer#tokenize'
from /opt/ruby/lib/ruby/3.4.0+0/ripper/lexer.rb:26:in 'Ripper.tokenize'
from -e:1:in '<main>'
~~~
--
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