Issue #19547 has been updated by nobu (Nobuyoshi Nakada). https://github.com/nobu/ruby/tree/backslash-token ---------------------------------------- Bug #19547: `RubyVM::AST.parse("\\", keep_tokens: true)` dumps core https://bugs.ruby-lang.org/issues/19547#change-102588 * Author: mame (Yusuke Endoh) * Status: Assigned * Priority: Normal * Assignee: yui-knk (Kaneko Yuichiro) * ruby -v: ruby 3.3.0dev (2023-03-25T08:17:05Z master 9bc2dbd33c) [x86_64-linux] * Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- ``` $ ./miniruby -e 'RubyVM::AbstractSyntaxTree.parse("\\", keep_tokens: true)' <internal:ast>:59: [BUG] parser_token2id: unknown token 92 ruby 3.3.0dev (2023-03-25T08:17:05Z master 9bc2dbd33c) [x86_64-linux] -- Control frame information ----------------------------------------------- c:0003 p:0003 s:0015 e:000014 METHOD <internal:ast>:59 c:0002 p:0008 s:0006 e:000005 EVAL -e:1 [FINISH] c:0001 p:0000 s:0003 E:001db0 DUMMY [FINISH] -- Ruby level backtrace information ---------------------------------------- -e:1:in `<main>' <internal:ast>:59:in `parse' -- Threading information --------------------------------------------------- Total ractor count: 1 Ruby thread count for this ractor: 1 -- C level backtrace information ------------------------------------------- /home/mame/work/ruby/miniruby(rb_print_backtrace+0xd) [0x55ee562be9be] /home/mame/work/ruby/vm_dump.c:785 /home/mame/work/ruby/miniruby(rb_vm_bugreport) /home/mame/work/ruby/vm_dump.c:1101 /home/mame/work/ruby/miniruby(bug_report_end+0x0) [0x55ee560ab94f] /home/mame/work/ruby/error.c:790 /home/mame/work/ruby/miniruby(rb_bug_without_die) /home/mame/work/ruby/error.c:790 /home/mame/work/ruby/miniruby(die+0x0) [0x55ee560092a1] /home/mame/work/ruby/error.c:798 /home/mame/work/ruby/miniruby(rb_bug) /home/mame/work/ruby/error.c:800 /home/mame/work/ruby/miniruby(rb_long2int_inline+0x0) [0x55ee5600a925] /home/mame/work/ruby/parse.y:630 /home/mame/work/ruby/miniruby(add_delayed_token) /home/mame/work/ruby/parse.y:7008 /home/mame/work/ruby/miniruby(add_delayed_token) /home/mame/work/ruby/parse.y:6997 /home/mame/work/ruby/miniruby(parser_dispatch_scan_event+0x25) [0x55ee56174855] /home/mame/work/ruby/parse.y:6222 /home/mame/work/ruby/miniruby(parser_dispatch_scan_event) /home/mame/work/ruby/parse.y:6212 /home/mame/work/ruby/miniruby(yylex+0xf) [0x55ee56184173] /home/mame/work/ruby/parse.y:10492 /home/mame/work/ruby/miniruby(ruby_yyparse) /home/mame/work/ruby/parse.c:9357 /home/mame/work/ruby/miniruby(yycompile0+0xf9) [0x55ee561954c9] /home/mame/work/ruby/parse.y:6767 /home/mame/work/ruby/miniruby(rb_suppress_tracing+0x10c) [0x55ee562c369c] /home/mame/work/ruby/vm_trace.c:483 /home/mame/work/ruby/miniruby(yycompile+0x55) [0x55ee5617b76c] /home/mame/work/ruby/parse.y:6824 /home/mame/work/ruby/miniruby(parser_compile_string) /home/mame/work/ruby/parse.y:6892 /home/mame/work/ruby/miniruby(rb_parser_compile_string_path) /home/mame/work/ruby/parse.y:6905 /home/mame/work/ruby/miniruby(ast_parse_done+0x0) [0x55ee560279a8] /home/mame/work/ruby/ast.c:103 /home/mame/work/ruby/miniruby(rb_ast_parse_str) /home/mame/work/ruby/ast.c:104 /home/mame/work/ruby/miniruby(ast_s_parse) /home/mame/work/ruby/ast.c:90 /home/mame/work/ruby/miniruby(invoke_bf+0x12) [0x55ee562ae7fe] /home/mame/work/ruby/vm_insnhelper.c:6414 /home/mame/work/ruby/miniruby(vm_invoke_builtin_delegate) /home/mame/work/ruby/vm_insnhelper.c:6441 /home/mame/work/ruby/miniruby(vm_exec_core) /home/mame/work/ruby/insns.def:1526 /home/mame/work/ruby/miniruby(rb_vm_exec+0x938) [0x55ee562a14e8] /home/mame/work/ruby/vm.c:2366 /home/mame/work/ruby/miniruby(rb_ec_exec_node+0xb1) [0x55ee560b0ff1] /home/mame/work/ruby/eval.c:287 /home/mame/work/ruby/miniruby(ruby_run_node+0x4c) [0x55ee560b634c] /home/mame/work/ruby/eval.c:328 /home/mame/work/ruby/miniruby(rb_main+0x21) [0x55ee560126c6] ./main.c:39 /home/mame/work/ruby/miniruby(main) ./main.c:58 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_call_main+0x80) [0x7fdc30c23510] ../sysdeps/nptl/libc_start_call_main.h:58 /lib/x86_64-linux-gnu/libc.so.6(call_init+0x0) [0x7fdc30c235c9] ../csu/libc-start.c:381 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main_impl) ../csu/libc-start.c:368 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main) (null):0 [0x55ee56012715] ``` -- https://bugs.ruby-lang.org/