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Bug #17644

closed

Ripper.lex fails with syntax error and heredoc

Added by shugo (Shugo Maeda) about 3 years ago. Updated about 3 years ago.

Status:
Closed
Assignee:
-
Target version:
-
ruby -v:
ruby 3.1.0dev (2021-02-18T13:35:34Z master 7b9476fbfa) [x86_64-darwin19]
[ruby-dev:<unknown>]

Description

Ripper.lex fails with syntax error and heredoc:

$ cat t.rb
require "ripper"
s = <<~EOF
    foo
  end
  <<~EOS
    bar
  EOS
EOF
p Ripper.lex(s)
$ ruby t.rb
/Users/shugo/.rbenv/versions/master/lib/ruby/3.1.0/ripper/lexer.rb:110:in `each': undefined method `pos' for [#<Ripper::Lexer::Elem: on_heredoc_beg@3:0:BEG: "<<~EOS">, #<Ripper::Lexer::Elem: on_ignored_sp@4:0:BEG: "  ">, #<Ripper::Lexer::Elem: on_tstring_content@4:2:BEG: "bar\\n">, #<Ripper::Lexer::Elem: on_heredoc_end@5:0:BEG: "EOS\\n">]:Array (NoMethodError)
Did you mean?  pop
        from /Users/shugo/.rbenv/versions/master/lib/ruby/3.1.0/ripper/lexer.rb:110:in `sort_by'
        from /Users/shugo/.rbenv/versions/master/lib/ruby/3.1.0/ripper/lexer.rb:110:in `lex'
        from /Users/shugo/.rbenv/versions/master/lib/ruby/3.1.0/ripper/lexer.rb:52:in `lex'
        from t.rb:9:in `<main>'

It seems that this bug was introduced by 69d871eeeb2.

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