IRB errors when autocompleting commands

[nick-lawrence-ctm]

Description

IRB errors when using autocomplete

Expected behavior

Should be able to type things like Model.find(1).id without errors

Actual Behavior

Typing User.find(1) the instant I type the . after the find command,

/app/vendor/bundle/ruby/3.2.0/gems/whenever-1.0.0/lib/whenever/job_list.rb:41:in `respond_to?': undefined method `has_key?' for nil:NilClass (NoMethodError)

      @set_variables.has_key?(name) || super
                    ^^^^^^^^^
	from /usr/lib64/ruby/3.2.0/irb/completion.rb:364:in `block in retrieve_completion_data'
	from /usr/lib64/ruby/3.2.0/irb/completion.rb:362:in `each_object'
	from /usr/lib64/ruby/3.2.0/irb/completion.rb:362:in `retrieve_completion_data'
	from /usr/lib64/ruby/3.2.0/irb/completion.rb:161:in `block in <module:InputCompletor>'
	from /usr/lib64/ruby/3.2.0/reline/line_editor.rb:1691:in `call_completion_proc_with_checking_args'
	from /usr/lib64/ruby/3.2.0/reline/line_editor.rb:545:in `call_completion_proc_with_checking_args'
	from /usr/lib64/ruby/3.2.0/reline.rb:234:in `block in <class:Core>'
	from /usr/lib64/ruby/3.2.0/reline/line_editor.rb:590:in `instance_exec'
	from /usr/lib64/ruby/3.2.0/reline/line_editor.rb:590:in `call'
	from /usr/lib64/ruby/3.2.0/reline/line_editor.rb:625:in `call'
	from /usr/lib64/ruby/3.2.0/reline/line_editor.rb:672:in `render_each_dialog'
	from /usr/lib64/ruby/3.2.0/reline/line_editor.rb:653:in `block in render_dialog'
	from /usr/lib64/ruby/3.2.0/reline/line_editor.rb:652:in `each'
	from /usr/lib64/ruby/3.2.0/reline/line_editor.rb:652:in `render_dialog'
	from /usr/lib64/ruby/3.2.0/reline/line_editor.rb:512:in `rerender'
	from /usr/lib64/ruby/3.2.0/reline.rb:347:in `block (3 levels) in inner_readline'
	from /usr/lib64/ruby/3.2.0/reline.rb:345:in `each'
	from /usr/lib64/ruby/3.2.0/reline.rb:345:in `block (2 levels) in inner_readline'
	from /usr/lib64/ruby/3.2.0/reline.rb:420:in `block in read_io'
	from /usr/lib64/ruby/3.2.0/reline.rb:390:in `loop'
	from /usr/lib64/ruby/3.2.0/reline.rb:390:in `read_io'
	from /usr/lib64/ruby/3.2.0/reline.rb:343:in `block in inner_readline'
	from /usr/lib64/ruby/3.2.0/reline.rb:341:in `loop'
	from /usr/lib64/ruby/3.2.0/reline.rb:341:in `inner_readline'
	from /usr/lib64/ruby/3.2.0/reline.rb:271:in `readmultiline'
	from /usr/lib64/ruby/3.2.0/forwardable.rb:240:in `readmultiline'
	from /usr/lib64/ruby/3.2.0/forwardable.rb:240:in `readmultiline'
	from /usr/lib64/ruby/3.2.0/irb/input-method.rb:422:in `gets'
	from /usr/lib64/ruby/3.2.0/irb.rb:548:in `block (2 levels) in eval_input'
	from /usr/lib64/ruby/3.2.0/irb.rb:777:in `signal_status'
	from /usr/lib64/ruby/3.2.0/irb.rb:547:in `block in eval_input'
	from /usr/lib64/ruby/3.2.0/irb/ruby-lex.rb:283:in `lex'
	from /usr/lib64/ruby/3.2.0/irb/ruby-lex.rb:252:in `block (2 levels) in each_top_level_statement'
	from /usr/lib64/ruby/3.2.0/irb/ruby-lex.rb:249:in `loop'
	from /usr/lib64/ruby/3.2.0/irb/ruby-lex.rb:249:in `block in each_top_level_statement'
	from /usr/lib64/ruby/3.2.0/irb/ruby-lex.rb:248:in `catch'
	from /usr/lib64/ruby/3.2.0/irb/ruby-lex.rb:248:in `each_top_level_statement'
	from /usr/lib64/ruby/3.2.0/irb.rb:566:in `eval_input'
	from /usr/lib64/ruby/3.2.0/irb.rb:500:in `block in run'
	from /usr/lib64/ruby/3.2.0/irb.rb:499:in `catch'
	from /usr/lib64/ruby/3.2.0/irb.rb:499:in `run'
	from /usr/lib64/ruby/3.2.0/irb.rb:421:in `start'
	from /app/vendor/bundle/ruby/3.2.0/gems/railties-6.1.7.3/lib/rails/commands/console/console_command.rb:70:in `start'
	from /app/vendor/bundle/ruby/3.2.0/gems/railties-6.1.7.3/lib/rails/commands/console/console_command.rb:19:in `start'
	from /app/vendor/bundle/ruby/3.2.0/gems/railties-6.1.7.3/lib/rails/commands/console/console_command.rb:102:in `perform'
	from /app/vendor/bundle/ruby/3.2.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
	from /app/vendor/bundle/ruby/3.2.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
	from /app/vendor/bundle/ruby/3.2.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
	from /app/vendor/bundle/ruby/3.2.0/gems/railties-6.1.7.3/lib/rails/command/base.rb:69:in `perform'
	from /app/vendor/bundle/ruby/3.2.0/gems/railties-6.1.7.3/lib/rails/command.rb:48:in `invoke'
	from /app/vendor/bundle/ruby/3.2.0/gems/railties-6.1.7.3/lib/rails/commands.rb:18:in `<main>'
	from /app/vendor/bundle/ruby/3.2.0/gems/bootsnap-1.16.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
	from /app/vendor/bundle/ruby/3.2.0/gems/bootsnap-1.16.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
	from bin/rails:4:in `<main>'

Result of irb_info

irb(main):001:0> irb_info
=>
Ruby version: 3.2.2
IRB version: irb 1.6.2 (2022-12-13)
InputMethod: RelineInputMethod with Reline 0.3.2
RUBY_PLATFORM: x86_64-linux
LANG env: en_US.UTF-8
East Asian Ambiguous Width: 1

Terminal Emulator

iTerm2 Build 3.4.15

[tompng]

This problem does not happen in the latest version of IRB because IRB dropped chained method completion in #529.
The code below does not exist anymore.

	from /usr/lib64/ruby/3.2.0/irb/completion.rb:364:in `block in retrieve_completion_data'
	from /usr/lib64/ruby/3.2.0/irb/completion.rb:362:in `each_object'

This is a bug of gem whenever which is wrongly implementing instance method respond_to? as class method.
javan/whenever#830

[tompng]

One of the workaround is to fix Whenever::JobList.respond_to? by

def (Whenever::JobList).respond_to?(*)
  super
end