October 2023 - ruby-core - ml.ruby-lang.org

[ruby-core:113489] [Ruby master Bug#19642] Remove vectored read/write from `io.c`.
by ioquatix (Samuel Williams) 20 Nov '24

20 Nov '24

Issue #19642 has been reported by ioquatix (Samuel Williams). ---------------------------------------- Bug #19642: Remove vectored read/write from `io.c`. https://bugs.ruby-lang.org/issues/19642 * Author: ioquatix (Samuel Williams) * Status: Open * Priority: Normal * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- https://github.com/socketry/async/issues/228#issuecomment-1546789910 is a comment from the kernel developer who tells us that `writev` is always worse than `write` system call. A large amount of complexity in `io.c` comes from optional support from `writev`. So, I'd like to remove support for `writev`. I may try to measure the performance before/after. However it may not show much difference, except that the implementation in `io.c` can be much simpler. -- https://bugs.ruby-lang.org/

5 9

[ruby-core:111966] [Ruby master Feature#19366] Rename/alias Refinedment#refined_class => #refined_module
by zverok (Victor Shepelev) 19 Nov '24

19 Nov '24

Issue #19366 has been reported by zverok (Victor Shepelev). ---------------------------------------- Feature #19366: Rename/alias Refinedment#refined_class => #refined_module https://bugs.ruby-lang.org/issues/19366 * Author: zverok (Victor Shepelev) * Status: Open * Priority: Normal ---------------------------------------- In #12737, `Refinement#refined_class` is introduced. As "module" is more generic concept than "class", the name misleadingly implies that either this method doesn't returns refined _modules_, or modules can't be refined. This is obviously not true and trivially disproved: ```ruby module Refs refine Enumerable do def foo = puts 'foo' end end Refs.refinements[0].refined_class #=> Enumerable. Which is, well, not a class. # The refinement is usable, so it is not a mute concept: using Refs [1, 2, 3].foo # prints "foo" successfully ``` I believe we refer to "modules" when some feature applies to modules and classes. Unless there is some deeper consideration for the current naming (I don't see justification in #12737, but I might miss something), the method should be renamed or aliased. PS: Sorry for a huge amount of "nitpicky" issues after the version release. Typically, those concerns emerge while I am working on the [changelog](https://rubyreferences.github.io/rubychanges/), and I am usually trying to start the work at least a month before the release. Unfortunately, due to you-know-what, I was unable to do it in time this year. After the 3.2 changelog, I plan to switch to the "master changelog" approach (following the development with the "current unreleased changes" document) this year. Unless I'll be unable to due to reasons not in my control. -- https://bugs.ruby-lang.org/

4 3

[ruby-core:112058] [Ruby master Bug#19383] Time.now.zone encoding for German display language in Windows is incorrect
by stringsn88keys (Thomas Powell) 21 Oct '24

21 Oct '24

Issue #19383 has been reported by stringsn88keys (Thomas Powell). ---------------------------------------- Bug #19383: Time.now.zone encoding for German display language in Windows is incorrect https://bugs.ruby-lang.org/issues/19383 * Author: stringsn88keys (Thomas Powell) * Status: Open * Priority: Normal * ruby -v: 3.1.3 * Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- OS: Verified on Windows 10 and Windows Server 2022 and Ruby 2.7.7 through 3.1.3 Display language: Verified on German, but may impact other languages in which Time.now.zone returns characters that aren't [A-Za-z]. Time zone: CET (UTC +01:00) Amsterdam, Berlin, ... Time.now.zone # => "Mitteleuro\xE3ische Zeit" Time.now.zone.encoding # => #<Encoding:IBM437> puts Time.now.zone # => "Mitteleurop∑ische Zeit" (should be "Mitteleuropäische Zeit") Time.now.zone.encode(Encoding::UTF_8) # => "Mitteleurop∑ische Zeit" Doing a force_encoding on all encodings in Encoding.list reveals that ISO-8859-(1..16) and Windows-125(0,2,4,7) work to coerce the ä out of the time zone string: Time.now.zone.force_encoding(Encoding::WINDOWS_1252) # => "Mitteleuro\xE3ische Zeit" ... but ... Time.now.zone.force_encoding(Encoding::WINDOWS_1252).encode(Encoding::UTF_8) #=> "Mitteleuropäische Zeit" Related issue: This improper encoding/rendering caused Ohai's JSON output to be unparseable. Workaround was forcing to Windows-1252. https://github.com/chef/ohai/pull/1781 -- https://bugs.ruby-lang.org/

5 10

[ruby-core:113052] [Ruby master Bug#19562] Setting default_(in|ex)ternal encoding after running an Ractor freezes ruby
by larskanis (Lars Kanis) 20 Sep '24

20 Sep '24

Issue #19562 has been reported by larskanis (Lars Kanis). ---------------------------------------- Bug #19562: Setting default_(in|ex)ternal encoding after running an Ractor freezes ruby https://bugs.ruby-lang.org/issues/19562 * Author: larskanis (Lars Kanis) * Status: Open * Priority: Normal * ruby -v: ruby 3.2.1 (2023-02-08 revision 31819e82c8) [x86_64-linux] * Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- The following command blocks infinitely and must be killed with "kill -9" ``` ruby -e "Ractor.new{}.take; Encoding.default_external = Encoding::ISO8859_2" ``` Backtrace is: ``` #0 futex_wait (private=0, expected=2, futex_word=0x55555555abd0) at ../sysdeps/nptl/futex-internal.h:146 #1 __GI___lll_lock_wait (futex=futex@entry=0x55555555abd0, private=0) at ./nptl/lowlevellock.c:49 #2 0x00007ffff760a082 in lll_mutex_lock_optimized (mutex=0x55555555abd0) at ./nptl/pthread_mutex_lock.c:48 #3 ___pthread_mutex_lock (mutex=mutex@entry=0x55555555abd0) at ./nptl/pthread_mutex_lock.c:93 #4 0x00007ffff7c5a40d in rb_native_mutex_lock (lock=lock@entry=0x55555555abd0) at ruby-3.2.1/thread_pthread.c:556 #5 0x00007ffff7cc5376 in vm_lock_enter (cr=0x55555555deb0, vm=0x55555555aba0, locked=locked@entry=false, no_barrier=no_barrier@entry=false, lev=0x55555555ac00) at vm_sync.c:56 #6 0x00007ffff7cc5747 in rb_vm_lock_body () at vm_sync.c:175 #7 0x00007ffff7bc02c2 in rb_vm_lock (line=1829, file=0x7ffff7e209cb "ractor.c") at ruby-3.2.1/vm_sync.h:57 #8 ractor_check_blocking (remained_thread_cnt=<optimized out>, file=0x7ffff7e209cb "ractor.c", line=1865, cr=0x55555555deb0) at ractor.c:1829 #9 ractor_check_blocking (line=1865, file=0x7ffff7e209cb "ractor.c", remained_thread_cnt=<optimized out>, cr=0x55555555deb0) at ractor.c:1811 #10 rb_ractor_blocking_threads_inc (cr=0x55555555deb0, file=file@entry=0x7ffff7e29b04 "thread.c", line=line@entry=1488) at ractor.c:1865 #11 0x00007ffff7c60977 in blocking_region_begin (th=0x55555555d070, region=0x7fffffffd220, ubf=0x7ffff7c5b300 <ubf_select>, arg=0x55555555d070, fail_if_interrupted=<optimized out>) at thread.c:1488 #12 0x00007ffff7c61edf in rb_nogvl (func=0x7ffff7ac66e0 <no_gvl_stat>, data1=0x7fffffffd2a0, ubf=<optimized out>, data2=0x55555555d070, flags=<optimized out>) at thread.c:1548 #13 0x00007ffff7acdfbc in stat_without_gvl (st=0x7fffffffd2b0, path=0x7ffff27dfe88 "ruby-3.2.1/lib/ruby/3.2.0/x86_64-linux/enc/iso_8859_2.so") at file.c:1171 #14 rb_check_realpath_internal (basedir=basedir@entry=4, path=path@entry=140737261984200, origenc=0x555555565030, mode=mode@entry=RB_REALPATH_STRICT) at file.c:4491 #15 0x00007ffff7acebaa in rb_realpath_internal (basedir=basedir@entry=4, path=path@entry=140737261984200, strict=strict@entry=1) at file.c:4536 #16 0x00007ffff7b2cdd4 in require_internal (ec=0x55555555e1f0, fname=<optimized out>, exception=1, warn=<optimized out>) at load.c:1195 #17 0x00007ffff7aa0a17 in load_encoding (name=0x5555556049b0 "ISO-8859-2") at encoding.c:779 #18 0x00007ffff7aa2ef8 in check_encoding (enc=0x5555556049d0) at encoding.c:191 #19 enc_check_encoding (obj=140737335533800) at encoding.c:202 #20 rb_to_encoding (enc=enc@entry=140737335533800) at encoding.c:307 #21 0x00007ffff7aa4049 in enc_set_default_encoding (name=0x7ffff7de6287 "external", encoding=140737335533800, def=0x7ffff7fb00c0 <default_external>) at encoding.c:1563 #22 rb_enc_set_default_external (encoding=140737335533800) at encoding.c:1637 #23 0x00007ffff7aa411f in set_default_external (klass=<optimized out>, encoding=140737335533800) at encoding.c:1658 #24 0x00007ffff7c99037 in vm_call_cfunc_with_frame (ec=0x55555555e1f0, reg_cfp=0x7ffff6f7df90, calling=<optimized out>) at ruby-3.2.1/vm_insnhelper.c:3268 #25 0x00007ffff7ca9564 in vm_sendish (method_explorer=<optimized out>, block_handler=<optimized out>, cd=<optimized out>, reg_cfp=<optimized out>, ec=<optimized out>) at ruby-3.2.1/vm_callinfo.h:367 #26 vm_exec_core (ec=0x55555555e1f0, initial=128) at ruby-3.2.1/insns.def:820 #27 0x00007ffff7caee93 in rb_vm_exec (ec=0x55555555e1f0, jit_enable_p=true) at vm.c:2374 #28 0x00007ffff7abfbf1 in rb_ec_exec_node (ec=ec@entry=0x55555555e1f0, n=n@entry=0x7ffff796c2c0) at eval.c:289 #29 0x00007ffff7ac60b3 in ruby_run_node (n=0x7ffff796c2c0) at eval.c:330 #30 0x0000555555555187 in rb_main (argv=0x7fffffffdb98, argc=3) at ./main.c:38 #31 main (argc=<optimized out>, argv=<optimized out>) at ./main.c:57 ``` When the encoding was already loaded before running `Ractor.new`, then it works and doesn't block: ``` ruby -e "''.encode(Encoding::ISO8859_2); Ractor.new{}.take; Encoding.default_internal = Encoding::ISO8859_2" ``` When the encoding is not assigned as default encoding, but used otherwise, it works too: ``` ruby -e "Ractor.new{}.take; ''.encode(Encoding::ISO8859_2)" ``` -- https://bugs.ruby-lang.org/

3 2

[ruby-core:111144] [Ruby master Feature#19171] Update Unicode data to Unicode Version 15.1
by duerst 20 Sep '24

20 Sep '24

Issue #19171 has been reported by duerst (Martin Dürst). ---------------------------------------- Feature #19171: Update Unicode data to Unicode Version 15.1 https://bugs.ruby-lang.org/issues/19171 * Author: duerst (Martin Dürst) * Status: Open * Priority: Normal * Assignee: duerst (Martin Dürst) ---------------------------------------- According to http://blog.unicode.org/2022/11/the-unicode-standard-2023-release.html, Unicode plans to release Version 15.1 in September 2023. According to https://www.unicode.org/versions/beta.html, public alpha review starts Feb. 7, 2023, and ends April 4, 2023. Because alpha review may not include all the files we use, it may be difficult for us to participate. Public beta review is planned to start May 23, 2023, ending July 4, 2023. At this point, we should be able to test things. -- https://bugs.ruby-lang.org/

2 1

[ruby-core:114645] [Ruby master Bug#19865] Segfault when calling user signal handlers during VM shutdown
by ivoanjo (Ivo Anjo) 27 Aug '24

27 Aug '24

Issue #19865 has been reported by ivoanjo (Ivo Anjo). ---------------------------------------- Bug #19865: Segfault when calling user signal handlers during VM shutdown https://bugs.ruby-lang.org/issues/19865 * Author: ivoanjo (Ivo Anjo) * Status: Open * Priority: Normal * ruby -v: ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x86_64-linux] * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- Howdy 👋! I work for Datadog [on the `ddtrace` gem](https://github.com/DataDog/dd-trace-rb) . I've found this issue while investigating a [customer crash report](https://github.com/DataDog/dd-trace-rb/issues/2980). ### Background The original issue was found in a production app. A number of things need to be in play to cause it. The [`ruby-odbc`](https://rubygems.org/gems/ruby-odbc) gem provides a way of accessing databases through the ODBC API. It wraps a database connection as a Data object, with a free function that, prior to freeing the native resources, disconnects from the database if the connection was still active. Because disconnecting from the database is a blocking operation, the gem (reasonably, in my opinion), releases the global VM lock before disconnecting. The trigger for the crash is: 1. The app in question used puma, and puma installs a `Signal.trap('TERM')` 2. The database object was still connected when the app started to shut down 3. A VM shutdown starts... 4. Half-way through shutdown, the VM received a SIGTERM signal, and queued it for processing 5. The VM calls the free function on all objects 6. The ruby-odbc gem sees there's an active database connection, and tries to release the GVL to call the blocking disconnect 7. Before releasing the GVL, the VM checks for pending interruptions 8. The VM tries to run the Ruby-level signal handler method half-way through VM shutdown, when you can no longer run Ruby code 9. Segfault ### How to reproduce (Ruby version & script) I was able to reproduce on a minimal example on Ruby 3.2.2 (`ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x86_64-linux]`) and recent master (`ruby 3.3.0dev (2023-08-17T07:30:01Z master d26b015e83) [x86_64-linux]`). I've put the test-case up on github as well <https://github.com/DataDog/signal-bug-testcase>, but here's the important bits: `signal-bug-testcase.rb`: ```ruby require 'signal_bug_testcase' Signal.trap("TERM") { puts "Hello, world" } FOO = SignalBugTestcase.new ``` `signal_bug_testcase.c`: ```ruby #include <ruby.h> #include <ruby/thread.h> #include <signal.h> #include <unistd.h> typedef struct { int dummy; } BugTestcase; void *test_nogvl(void *unused) { fprintf(stderr, "GVL released!\n"); return NULL; } static void bug_testcase_free(void* ptr) { fprintf(stderr, "Free getting called! Sending signal...\n"); kill(getpid(), SIGTERM); fprintf(stderr, "SIGTERM signal queued, trying to release GVL...\n"); rb_thread_call_without_gvl(test_nogvl, NULL, NULL, NULL); fprintf(stderr, "After releasing GVL!\n"); free(ptr); } const rb_data_type_t bug_testcase_data_type = { .wrap_struct_name = "SignalBugTestcase", .function = { NULL, bug_testcase_free, NULL }, .flags = RUBY_TYPED_FREE_IMMEDIATELY }; VALUE bug_testcase_alloc(VALUE klass) { BugTestcase* obj = calloc(1, sizeof(BugTestcase)); return TypedData_Make_Struct(klass, BugTestcase, &bug_testcase_data_type, obj); } void Init_signal_bug_testcase(void) { VALUE cBugTestcase = rb_define_class("SignalBugTestcase", rb_cObject); rb_define_alloc_func(cBugTestcase, bug_testcase_alloc); } ``` ### Expectation and result No segfault happens. Interestingly, on Ruby 2.7, the VM exits half-way through but doesn't always segfault, but running it a few times always triggers the issue. On 3.2+ it crashes every time for me. I suspect the right thing here is to no longer accept/try to run any Ruby-level signal handlers after VM shutdown starts. Here's what I see with this test-case: ``` $ bundle exec ruby lib/signal-bug-testcase.rb Free getting called! Sending signal... SIGTERM signal queued, trying to release GVL... lib/signal-bug-testcase.rb:3: [BUG] Segmentation fault at 0x0000000000000007 ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x86_64-linux] -- Control frame information ----------------------------------------------- c:0003 p:---- s:0011 e:000010 CFUNC :puts c:0002 p:0005 s:0006 e:000005 BLOCK lib/signal-bug-testcase.rb:3 [FINISH] c:0001 p:0000 s:0003 E:0001a0 DUMMY [FINISH] -- Ruby level backtrace information ---------------------------------------- lib/signal-bug-testcase.rb:3:in `block in <main>' lib/signal-bug-testcase.rb:3:in `puts' -- Machine register context ------------------------------------------------ RIP: 0x000070aa64cedbe7 RBP: 0x000070aa648e8fd0 RSP: 0x00007ffc5c057608 RAX: 0x0000000000004171 RBX: 0x00007ffc5c057630 RCX: 0x0000000000000001 RDX: 0x00007ffc5c057630 RDI: 0x0000000000000007 RSI: 0x0000000000004171 R8: 0x000000000000021b R9: 0x0000000000000000 R10: 0x000070aa63eff048 R11: 0x0000000000000000 R12: 0x000070aa648e8fd0 R13: 0x0000000000004171 R14: 0x0000000000000007 R15: 0x000070aa648e8ff0 EFL: 0x0000000000010202 -- C level backtrace information ------------------------------------------- ruby-3.2.2/lib/libruby.so.3.2(rb_print_backtrace+0xd) [0x70aa64d5bb5f] ruby-3.2.2/vm_dump.c:785 ruby-3.2.2/lib/libruby.so.3.2(rb_vm_bugreport) ruby-3.2.2/vm_dump.c:1080 ruby-3.2.2/lib/libruby.so.3.2(rb_bug_for_fatal_signal+0xf4) [0x70aa64b52164] ruby-3.2.2/error.c:813 ruby-3.2.2/lib/libruby.so.3.2(sigsegv+0x4d) [0x70aa64cab0fd] ruby-3.2.2/signal.c:964 /lib/x86_64-linux-gnu/libc.so.6(0x70aa64642520) [0x70aa64642520] ruby-3.2.2/lib/libruby.so.3.2(hash_table_index+0x0) [0x70aa64cedbe7] ruby-3.2.2/symbol.h:72 ruby-3.2.2/lib/libruby.so.3.2(rb_id_table_lookup) ruby-3.2.2/id_table.c:230 ruby-3.2.2/lib/libruby.so.3.2(cached_callable_method_entry+0x24) [0x70aa64d356bb] ruby-3.2.2/vm_method.c:1295 ruby-3.2.2/lib/libruby.so.3.2(callable_method_entry_or_negative) ruby-3.2.2/vm_method.c:1365 ruby-3.2.2/lib/libruby.so.3.2(callable_method_entry) ruby-3.2.2/vm_method.c:1402 ruby-3.2.2/lib/libruby.so.3.2(rb_callable_method_entry) ruby-3.2.2/vm_method.c:1409 ruby-3.2.2/lib/libruby.so.3.2(gccct_method_search_slowpath+0x38) [0x70aa64d36258] ruby-3.2.2/vm_eval.c:434 ruby-3.2.2/lib/libruby.so.3.2(rb_call0+0x267) [0x70aa64d4e877] ruby-3.2.2/vm_eval.c:483 ruby-3.2.2/lib/libruby.so.3.2(rb_call+0x32) [0x70aa64d4f406] ruby-3.2.2/vm_eval.c:877 ruby-3.2.2/lib/libruby.so.3.2(rb_funcallv_kw) ruby-3.2.2/vm_eval.c:1074 ruby-3.2.2/lib/libruby.so.3.2(vm_call_cfunc_with_frame+0x127) [0x70aa64d30277] ruby-3.2.2/vm_insnhelper.c:3268 ruby-3.2.2/lib/libruby.so.3.2(vm_sendish+0x97) [0x70aa64d407a4] ruby-3.2.2/vm_insnhelper.c:5080 ruby-3.2.2/lib/libruby.so.3.2(vm_exec_core) ruby-3.2.2/insns.def:820 ruby-3.2.2/lib/libruby.so.3.2(rb_vm_exec+0xd3) [0x70aa64d460d3] ruby-3.2.2/vm.c:2374 ruby-3.2.2/lib/libruby.so.3.2(rb_vm_invoke_proc+0x5f) [0x70aa64d4bfcf] ruby-3.2.2/vm.c:1603 ruby-3.2.2/lib/libruby.so.3.2(vm_call0_body+0x5df) [0x70aa64d4c5cf] ruby-3.2.2/vm_eval.c:274 ruby-3.2.2/lib/libruby.so.3.2(vm_call0_cc+0x77) [0x70aa64d4e7e7] ruby-3.2.2/vm_eval.c:87 ruby-3.2.2/lib/libruby.so.3.2(rb_call0) ruby-3.2.2/vm_eval.c:551 ruby-3.2.2/lib/libruby.so.3.2(rb_call+0x32) [0x70aa64d4f406] ruby-3.2.2/vm_eval.c:877 ruby-3.2.2/lib/libruby.so.3.2(rb_funcallv_kw) ruby-3.2.2/vm_eval.c:1074 ruby-3.2.2/lib/libruby.so.3.2(rb_eval_cmd_kw+0x142) [0x70aa64d4f562] ruby-3.2.2/vm_eval.c:1923 ruby-3.2.2/lib/libruby.so.3.2(signal_exec+0xf6) [0x70aa64caae16] ruby-3.2.2/signal.c:1064 ruby-3.2.2/lib/libruby.so.3.2(rb_threadptr_execute_interrupts+0x36b) [0x70aa64cf7078] ruby-3.2.2/thread.c:2334 ruby-3.2.2/lib/libruby.so.3.2(rb_threadptr_execute_interrupts) ruby-3.2.2/thread.c:2291 ruby-3.2.2/lib/libruby.so.3.2(rb_vm_check_ints+0xb) [0x70aa64cf7ac5] ruby-3.2.2/vm_core.h:1994 ruby-3.2.2/lib/libruby.so.3.2(rb_vm_check_ints) ruby-3.2.2/vm_core.h:1985 ruby-3.2.2/lib/libruby.so.3.2(unblock_function_set) ruby-3.2.2/thread.c:320 ruby-3.2.2/lib/libruby.so.3.2(blocking_region_begin) ruby-3.2.2/thread.c:1485 ruby-3.2.2/lib/libruby.so.3.2(rb_nogvl+0xbf) [0x70aa64cf90cf] ruby-3.2.2/thread.c:1548 signal-bug-testcase-2/lib/signal_bug_testcase.so(fprintf+0x0) [0x70aa6518f299] ../../../../ext/signal_bug_testcase/signal_bug_testcase.c:17 signal-bug-testcase-2/lib/signal_bug_testcase.so(bug_testcase_free) ../../../../ext/signal_bug_testcase/signal_bug_testcase.c:18 ruby-3.2.2/lib/libruby.so.3.2(run_final+0xf) [0x70aa64b73172] ruby-3.2.2/gc.c:4388 ruby-3.2.2/lib/libruby.so.3.2(finalize_list) ruby-3.2.2/gc.c:4407 ruby-3.2.2/lib/libruby.so.3.2(finalize_deferred_heap_pages) ruby-3.2.2/gc.c:4436 ruby-3.2.2/lib/libruby.so.3.2(rb_objspace_call_finalizer+0x350) [0x70aa64b80d70] ruby-3.2.2/gc.c:4573 ruby-3.2.2/lib/libruby.so.3.2(rb_ec_finalize+0x2a) [0x70aa64b5d6d1] ruby-3.2.2/eval.c:168 ruby-3.2.2/lib/libruby.so.3.2(rb_ec_cleanup) ruby-3.2.2/eval.c:262 ruby-3.2.2/lib/libruby.so.3.2(ruby_run_node+0x9d) [0x70aa64b5d91d] ruby-3.2.2/eval.c:330 ruby-3.2.2/bin/ruby(rb_main+0x21) [0x5d5d1295f187] ./main.c:38 ruby-3.2.2/bin/ruby(main) ./main.c:57 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_call_main+0x80) [0x70aa64629d90] ../sysdeps/nptl/libc_start_call_main.h:58 /lib/x86_64-linux-gnu/libc.so.6(call_init+0x0) [0x70aa64629e40] ../csu/libc-start.c:392 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main_impl) ../csu/libc-start.c:379 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main) (null):0 [0x5d5d1295f1d5] ``` ---Files-------------------------------- signal-bug-testcase-main.zip (7.73 KB) -- https://bugs.ruby-lang.org/

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[ruby-core:111272] [Ruby master Bug#19231] Integer#step and Float::INFINITY - inconsistent behaviour when called with and without a block
by andrykonchin (Andrew Konchin) 01 Aug '24

01 Aug '24

Issue #19231 has been reported by andrykonchin (Andrew Konchin). ---------------------------------------- Bug #19231: Integer#step and Float::INFINITY - inconsistent behaviour when called with and without a block https://bugs.ruby-lang.org/issues/19231 * Author: andrykonchin (Andrew Konchin) * Status: Open * Priority: Normal * ruby -v: 3.1.2 * Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN ---------------------------------------- The initial issue was reported here https://github.com/oracle/truffleruby/issues/2797. `0.step(Float::INFINITY, 10)` returns: - `Integers` when called with a block - `Floats` when called without a block I would expect `Floats` to be returned in both cases. Examples: ```ruby 0.step(100.0, 10).take(1).map(&:class) # => [Float] ``` ```ruby 0.step(Float::INFINITY, 10) { |offset| p offset.class; break } # Integer ``` When `to` argument is a finite `Float` value then calling with a block returns `Floats` as well: ```ruby 0.step(100.0, 10) { |offset| p offset.class; break } # Float ``` Wondering whether it's intentional behaviour. I've found a related issue https://bugs.ruby-lang.org/issues/15518. -- https://bugs.ruby-lang.org/

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[ruby-core:115196] [Ruby master Feature#19979] Allow methods to declare that they don't accept a block via `&nil`
by ufuk (Ufuk Kayserilioglu) 24 Jul '24

24 Jul '24

Issue #19979 has been reported by ufuk (Ufuk Kayserilioglu). ---------------------------------------- Feature #19979: Allow methods to declare that they don't accept a block via `&nil` https://bugs.ruby-lang.org/issues/19979 * Author: ufuk (Ufuk Kayserilioglu) * Status: Open * Priority: Normal ---------------------------------------- ## Abstract This feature proposes new syntax to allow methods to explicitly declare that they don't accept blocks, and makes passing of a block to such methods an error. ## Background In #15554, it was proposed to automatically detect methods that do not use the block passed to them, and to error if a block was passed to such methods. As far as I can tell, it was later on closed since #10499 solved a large part of the problem. That proposal has, as part of the dev meeting discussion, a proposal from @matz to allow methods to use `&nil` to explicitly declare that they don't accept a block. At the time, the proposal was trying to solve a bigger problem, so this sub-proposal was never considered seriously. However, notes in the proposal say: > It is explicit, but it is tough to add this `&nil` parameter declaration to all of methods (do you want to add it to `def []=(i, e, &nil)`?). (I agree `&nil` is valuable on some situations) This proposal extracts that sub-proposal to make this a new language feature. ## Proposal In Ruby, it is always valid for the caller to pass a block to a method call, even if the callee is not expecting a block to be passed. This leads to subtle user errors, where the author of some code assumes a method call uses a block, but the block passed to the method call is silently ignored. The proposal is to introduce `&nil` at method declaration sites to mean "This method does not accept a block". This is symmetric to the ability to pass `&nil` at call sites to mean "I am not passing a block to this method call", which is sometimes useful when making `super` calls (since blocks are always implicitly passed). Explicitly, the proposal is to make the following behaviour be a part of Ruby: ```ruby def find(item = nil, &nil) # some implementation that doesn't call `yield` or `block_given?` end find { |i| i == 42 } # => ArgumentError: passing block to the method `find' that does not accept a block. ``` ## Implementation I assume the implementation would be a grammar change to make `&nil` valid at method declaration sites, as well as raising an `ArgumentError` for methods that are called with a block but are declared with `&nil`. ## Evaluation Since I don't have an implementation, I can't make a proper evaluation of the feature proposal. However, I would expect the language changes to be minimal with no runtime costs for methods that don't use the `&nil` syntax. ## Discussion This proposal has much smaller scope than #15554 so that the Ruby language can start giving library authors the ability to explicitly mark their methods as not accepting a block. This is fully backward compatible, since it is an opt-in behaviour and not an opt-out one. Future directions after this feature proposal could be a way to signal to the VM that any method in a file that doesn't explicitly use `yield`/`block_given?` or explicitly declared a block parameter should be treated as not accepting a block. This can be done via some kind of pragma similar to `frozen_string_literal`, or through other means. However, such future directions are beyond the scope of this proposal. ## Summary Adding the ability for methods to declare that they don't accept a block will make writing code against such methods safer and more resilient, and will prevent silently ignored behaviour that is often hard to catch or troubleshoot. -- https://bugs.ruby-lang.org/

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[ruby-core:111448] [Ruby master Bug#19266] URI::Generic should use URI::RFC3986_PARSER instead of URI::DEFAULT_PARSER
by gareth (Gareth Adams) 22 Jul '24

22 Jul '24

Issue #19266 has been reported by gareth (Gareth Adams). ---------------------------------------- Bug #19266: URI::Generic should use URI::RFC3986_PARSER instead of URI::DEFAULT_PARSER https://bugs.ruby-lang.org/issues/19266 * Author: gareth (Gareth Adams) * Status: Open * Priority: Normal * ruby -v: ruby 3.1.3p185 (2022-11-24 revision 1a6b16756e) [arm64-darwin21] * Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- In June 2014, [`uri/common` was updated][1] to introduce a RFC3986-compliant parser (`URI::RFC3986_PARSER`) as an alternative to the previous RFC2396 parser, and common methods like `URI()` were updated to use that new parser by default. The only methods in `common` not updated were [`URI.extract` and `URI.regexp`][2] which are marked as obsolete. (The old parser was kept in the `DEFAULT_PARSER` constant despite it not being the default for those methods, presumably for backward compatibility.) However, similar [methods called on `URI::Generic`][3] were never updated to use this new parser. This means that methods like `URI::Generic.build` fail when given input that succeeds normally, and this also affects subclasses like URI::HTTP: ``` $ pry -r uri -r uri/common -r uri/generic [1] pry(main)> URI::Generic.build(host: "underscore_host.example") URI::InvalidComponentError: bad component(expected host component): underscore_host.example from /Users/gareth/.asdf/installs/ruby/3.1.3/lib/ruby/3.1.0/uri/generic.rb:591:in `check_host' [2] pry(main)> URI::HTTP.build(host: "underscore_host.example") URI::InvalidComponentError: bad component(expected host component): underscore_host.example from /Users/gareth/.asdf/installs/ruby/3.1.3/lib/ruby/3.1.0/uri/generic.rb:591:in `check_host' [3] pry(main)> URI("http://underscore_host.example") => #<URI::HTTP http://underscore_host.example> ``` `URI::Generic.new` allows a configurable `parser` positional argument to override the class' default parser, but other factory methods like `.build` don't allow this override. Arguably this doesn't cause problems because at least in the case above, the URI can be built with the polymorphic constructor, but having the option to build URIs from explicit named parts is useful, and leaving the outdated functionality in the `Generic` class is ambiguous. It's possible that the whole Generic class and its subclasses aren't intended to be used directly how I'm intending here, but there's nothing I could see that suggested this is the case. I'm not aware of the entire list of differences between RFC2396 and RFC3986. The relevant difference here is that in RFC2396 an individual segment of a host ([`domainlabel`s][4]) could only be `alphanum | alphanum *( alphanum | "-" ) alphanum`, whereas RFC3986 allows [hostnames][5] to include any of `ALPHA / DIGIT / "-" / "." / "_" / "~"`. It's possible that other differences might cause issues for developers, but since this has gone over 8 years without anyone else caring about this, this is definitely not especially urgent. [1]: https://github.com/ruby/ruby/commit/bb83f32dc3e0424d25fa4e55d8ff32b061320e41 [2]: https://github.com/ruby/ruby/blob/28a17436503c3c4cb7a35b423a894b697cd80da9/… [3]: https://github.com/ruby/ruby/blob/28a17436503c3c4cb7a35b423a894b697cd80da9/… [4]: https://www.rfc-editor.org/rfc/rfc2396#section-3.2.2 [5]: https://www.rfc-editor.org/rfc/rfc3986#page-13 -- https://bugs.ruby-lang.org/

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[ruby-core:113352] [Ruby master Bug#19619] Endless method definition with parameters for an instance given as numbered parameters doesn't work
by okuramasafumi (Masafumi OKURA) 21 Jul '24

21 Jul '24

Issue #19619 has been reported by okuramasafumi (Masafumi OKURA). ---------------------------------------- Bug #19619: Endless method definition with parameters for an instance given as numbered parameters doesn't work https://bugs.ruby-lang.org/issues/19619 * Author: okuramasafumi (Masafumi OKURA) * Status: Open * Priority: Normal * ruby -v: 3.2.2 * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- This works: ```ruby class Foo def bar(baz) = 'foo' end p Foo.new.bar('baz') ``` This also works: ```ruby o = Object.new o.tap { |obj| def obj.bar(baz) = 'foo' } p o.bar('baz') ``` Even this works: ```ruby o = Object.new o.tap { def _1.bar = 'foo' } p o.bar ``` But this DOESN'T work: ```ruby o = Object.new o.tap { def _1.bar(baz) = 'foo' } p o.bar('baz') ``` So, when we define a method with parameters on an instance given as numbered parameters, it doesn't work. If we change one condition (definition way, parameter existence, and so on), it works. -- https://bugs.ruby-lang.org/

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