Debug command does not work when IRB.conf[:USE_SINGLELINE] is set

[tompng]

Description

When IRB.conf[:USE_SINGLELINE] = true is set in .irbrc, debug command raises error.

From: a.rb @ line 4 :

    1: def foo
    2: end
    3: 
 => 4: binding.irb
    5: 
    6: foo
irb(main):001> debug
#<Thread:0x0000000126230268@DEBUGGER__::SESSION@server /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/debug-1.9.1/lib/debug/session.rb:179 run> terminated with exception (report_on_exception is true):
/Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb/debug.rb:72:in `block in setup': NoMethodError
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/reline-0.4.3/lib/reline/line_editor.rb:1185:in `modify_lines'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/reline-0.4.3/lib/reline/line_editor.rb:1061:in `render_whole_lines'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/reline-0.4.3/lib/reline/line_editor.rb:1041:in `rerender_all_lines'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/reline-0.4.3/lib/reline/line_editor.rb:476:in `rerender'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/reline-0.4.3/lib/reline.rb:340:in `inner_readline'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/reline-0.4.3/lib/reline.rb:288:in `readline'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/3.3.0/forwardable.rb:240:in `readline'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/3.3.0/forwardable.rb:240:in `readline'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb/input-method.rb:214:in `gets'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb.rb:1036:in `block in read_input'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb.rb:1323:in `signal_status'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb.rb:1034:in `read_input'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb.rb:1062:in `block in readmultiline'
	from <internal:kernel>:187:in `loop'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb.rb:1061:in `readmultiline'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb.rb:1083:in `block in each_top_level_statement'
	from <internal:kernel>:187:in `loop'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb.rb:1082:in `each_top_level_statement'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb.rb:1004:in `eval_input'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb.rb:951:in `debug_readline'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb/debug/ui.rb:59:in `block in readline'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb/debug/ui.rb:78:in `block in setup_interrupt'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/debug-1.9.1/lib/debug/session.rb:1981:in `intercept_trap_sigint'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb/debug/ui.rb:71:in `setup_interrupt'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/irb-1.12.0/lib/irb/debug/ui.rb:57:in `readline'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/debug-1.9.1/lib/debug/session.rb:444:in `wait_command'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/debug-1.9.1/lib/debug/session.rb:404:in `block in wait_command_loop'
	from <internal:kernel>:187:in `loop'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/debug-1.9.1/lib/debug/session.rb:403:in `wait_command_loop'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/debug-1.9.1/lib/debug/session.rb:329:in `process_event'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/debug-1.9.1/lib/debug/session.rb:254:in `session_server_main'
	from /Users/tomoya.ishida/.rbenv/versions/3.3.0/lib/ruby/gems/3.3.0/gems/debug-1.9.1/lib/debug/session.rb:212:in `block in activate'

Result of irb_info

irb(main):001> irb_info
Ruby version: 3.3.0
IRB version: irb 1.12.0 (2024-03-06)
InputMethod: ReadlineInputMethod with Reline 0.4.3 and /Users/tomoya.ishida/.inputrc
Completion: RegexpCompletor
.irbrc paths: /Users/tomoya.ishida/.irbrc
RUBY_PLATFORM: arm64-darwin22
LANG env: ja_JP.UTF-8
East Asian Ambiguous Width: 1

Setting Files

.irbrc

IRB.conf[:USE_SINGLELINE] = true