Style/DocumentDynamicEvalDefinition error

[dreikanter]

This code causes Style/DocumentDynamicEvalDefinition to throw an error:

stringio.instance_eval("def original_filename; 'stringio#{n}.txt'; end ")

I don't have any custom configuration for this cop.

---

Expected behavior

I would expect this cop to work with no errors.

Actual behavior

Here is the error log, you may notice "undefined method `heredoc_body'" error message:

~/a/amplifr (chore/rubocop130) (exit 1) > rubocop  --debug test.rb
For /Users/dreikanter/amplifr/amplifr: configuration from /Users/dreikanter/amplifr/amplifr/.rubocop.yml
configuration from /Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-rails-2.8.1/config/default.yml
configuration from /Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-rails-2.8.1/config/default.yml
Default configuration from /Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/config/default.yml
configuration from /Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-rspec-2.0.0.pre/config/default.yml
configuration from /Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-rspec-2.0.0.pre/config/default.yml
configuration from /Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-performance-1.8.1/config/default.yml
configuration from /Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-performance-1.8.1/config/default.yml
Inheriting configuration from /Users/dreikanter/amplifr/amplifr/.rubocop_todo.yml
Inspecting 1 file
Scanning /Users/dreikanter/amplifr/amplifr/test.rb
An error occurred while Style/DocumentDynamicEvalDefinition cop was inspecting /Users/dreikanter/amplifr/amplifr/test.rb:1:0.
undefined method `heredoc_body' for #<Parser::Source::Map::Collection:0x00007f7ffa742490>
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cop/style/document_dynamic_eval_definition.rb:101:in `comment_block_docs?'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cop/style/document_dynamic_eval_definition.rb:82:in `on_send'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cop/commissioner.rb:136:in `public_send'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cop/commissioner.rb:136:in `block (2 levels) in trigger_restricted_cops'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cop/commissioner.rb:166:in `with_cop_error_handling'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cop/commissioner.rb:135:in `block in trigger_restricted_cops'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cop/commissioner.rb:134:in `each'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cop/commissioner.rb:134:in `trigger_restricted_cops'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cop/commissioner.rb:70:in `on_send'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-ast-1.1.1/lib/rubocop/ast/traversal.rb:20:in `walk'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cop/commissioner.rb:86:in `investigate'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cop/team.rb:157:in `investigate_partial'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cop/team.rb:83:in `investigate'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:315:in `inspect_file'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:259:in `block in do_inspection_loop'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:293:in `block in iterate_until_no_changes'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:286:in `loop'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:286:in `iterate_until_no_changes'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:255:in `do_inspection_loop'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:132:in `block in file_offenses'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:157:in `file_offense_cache'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:131:in `file_offenses'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:122:in `process_file'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:101:in `block in each_inspected_file'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:100:in `each'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:100:in `reduce'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:100:in `each_inspected_file'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:86:in `inspect_files'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/runner.rb:47:in `run'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cli/command/execute_runner.rb:25:in `execute_runner'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cli/command/execute_runner.rb:17:in `run'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cli/command.rb:11:in `run'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cli/environment.rb:18:in `run'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cli.rb:65:in `run_command'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cli.rb:72:in `execute_runners'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/lib/rubocop/cli.rb:41:in `run'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/exe/rubocop:13:in `block in <top (required)>'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/2.7.0/benchmark.rb:308:in `realtime'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-1.3.0/exe/rubocop:12:in `<top (required)>'
/Users/dreikanter/.rbenv/versions/2.7.0/bin/rubocop:23:in `load'
/Users/dreikanter/.rbenv/versions/2.7.0/bin/rubocop:23:in `<top (required)>'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:63:in `load'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:63:in `kernel_load'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:28:in `run'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/lib/bundler/cli.rb:476:in `exec'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor.rb:399:in `dispatch'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/lib/bundler/cli.rb:30:in `dispatch'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/base.rb:476:in `start'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/lib/bundler/cli.rb:24:in `start'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/exe/bundle:46:in `block in <top (required)>'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/lib/bundler/friendly_errors.rb:123:in `with_friendly_errors'
/Users/dreikanter/.rbenv/versions/2.7.0/lib/ruby/gems/2.7.0/gems/bundler-2.1.4/exe/bundle:34:in `<top (required)>'
/Users/dreikanter/.rbenv/versions/2.7.0/bin/bundle:23:in `load'
/Users/dreikanter/.rbenv/versions/2.7.0/bin/bundle:23:in `<main>'
C

Offenses:

test.rb:1:1: C: Style/EvalWithLocation: Pass __FILE__ and __LINE__ to eval method, as they are used by backtraces.
stringio.instance_eval("def original_filename; 'stringio#{n}.txt'; end ")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

1 file inspected, 1 offense detected

1 error occurred:
An error occurred while Style/DocumentDynamicEvalDefinition cop was inspecting /Users/dreikanter/amplifr/amplifr/test.rb:1:0.
Errors are usually caused by RuboCop bugs.
Please, report your problems to RuboCop's issue tracker.
https://github.com/rubocop-hq/rubocop/issues

Mention the following information in the issue report:
1.3.0 (using Parser 2.7.2.0, rubocop-ast 1.1.1, running on ruby 2.7.0 x86_64-darwin19)
Finished in 0.9276580000296235 seconds

Steps to reproduce the problem

I've upgraded rubocop to 1.3.0 and ran it on my codebase.

RuboCop version

$ rubocop -V
1.3.0 (using Parser 2.7.2.0, rubocop-ast 1.1.1, running on ruby 2.7.0 x86_64-darwin19)
  - rubocop-performance 1.8.1
  - rubocop-rails 2.8.1
  - rubocop-rspec 2.0.0.pre