May 2025 - ruby-core - ml.ruby-lang.org

[ruby-core:122289] [Ruby Bug#21372] Ruby is passing clang specific flags to GCC 15 and native gem doesn't build.
by skatkov (Stanislav (Stas) Katkov) 28 May '25

28 May '25

Issue #21372 has been reported by skatkov (Stanislav (Stas) Katkov). ---------------------------------------- Bug #21372: Ruby is passing clang specific flags to GCC 15 and native gem doesn't build. https://bugs.ruby-lang.org/issues/21372 * Author: skatkov (Stanislav (Stas) Katkov) * Status: Open * ruby -v: ruby 3.4.4 * Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- Fedora 42 has ompilation errors while running `gem install extlz4`. ```sh At top level: cc1: note: unrecognized command-line option ‘-Wno-self-assign’ may have been intended to silence earlier diagnostics cc1: note: unrecognized command-line option ‘-Wno-parentheses-equality’ may have been intended to silence earlier diagnostics cc1: note: unrecognized command-line option ‘-Wno-constant-logical-operand’ may have been intended to silence earlier diagnostics make: *** [Makefile:251: blockapi.o] Error 1 make failed, exit code 2 Gem files will remain installed in /home/sk/.local/share/mise/installs/ruby/3.4.1/lib/ruby/gems/3.4.0/gems/extlz4-0.3.4 for inspection. Results logged to /home/sk/.local/share/mise/installs/ruby/3.4.1/lib/ruby/gems/3.4.0/extensions/x86_64-linux/3.4.0/extlz4-0.3.4/gem_make.out ``` I have submitted a ticket with a gem, but I have hunch that this might not be an issue with a gem, but rather a ruby compatibility issue with the new GCC (15). @see https://github.com/dearblue/ruby-extlz4/issues/6 I have very little experience with C and how compilation works. But as far as I can understand, ruby was compiled with clang and is now passing some CLANG specifics flags to GCC 15 during native gem compilation - this causes a compilation error. ```sh ruby -rrbconfig -e 'puts RbConfig::CONFIG["warnflags"].split(/\s+/).grep(/-Wno-/).sort' -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-packed-bitfield-compat -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value ``` ``` ruby -rrbconfig -e 'system RbConfig::CONFIG["CC"], "--version"' gcc (GCC) 15.1.1 20250521 (Red Hat 15.1.1-2) Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ``` All my attept to overwrite compiler to use clang don't work either. I tried the following: ``` gem install extlz4 -- --with-cc=clang CC=clang gem install extlz4 CC=/usr/bin/clang gem install extlz4 ``` ## System os: fedora 42 ruby: ruby 3.4.4 (2025-05-14 revision a38531fd3f) +PRISM [x86_64-linux] (but also tried it with 3.3.8, with no success) gcc: gcc (GCC) 15.1.1 20250521 (Red Hat 15.1.1-2) ## Workaround I run the following script and then it's possible to complete "bundle install" process. https://gist.github.com/skatkov/df4db6f8b76e58fc8eefaa92592f2c1a -- https://bugs.ruby-lang.org/

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[ruby-core:122306] [Ruby Bug#21377] core Set#inspect does not use inherited class name
by Ethan (Ethan -) 28 May '25

28 May '25

Issue #21377 has been reported by Ethan (Ethan -). ---------------------------------------- Bug #21377: core Set#inspect does not use inherited class name https://bugs.ruby-lang.org/issues/21377 * Author: Ethan (Ethan -) * Status: Open * ruby -v: ruby 3.5.0dev (2025-05-26T17:42:35Z master 909a0daab6) +PRISM [x86_64-darwin22] * Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- Following #21216, Set#inspect stopped using self.class.name and just uses 'Set' now. ```ruby class MySet < Set; end MySet.new.inspect # before: #<MySet: {}> # now: #<Set: {}> ``` -- https://bugs.ruby-lang.org/

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[ruby-core:122258] [Ruby Misc#21367] Remove link to ruby-doc.org from www.ruby-lang.org/en/documentation/
by p8 (Petrik de Heus) 27 May '25

27 May '25

Issue #21367 has been reported by p8 (Petrik de Heus). ---------------------------------------- Misc #21367: Remove link to ruby-doc.org from www.ruby-lang.org/en/documentation/ https://bugs.ruby-lang.org/issues/21367 * Author: p8 (Petrik de Heus) * Status: Open ---------------------------------------- The ruby-doc.org domain no longer seems resolvable. ``` $ curl -I http://ruby-doc.org curl: (6) Could not resolve host: ruby-doc.org ``` The owner of the domain mentioned he wanted to sell it: https://ruby.social/@jamesbritt@mastodon.social/114375521600278606 This is probably a good time to remove it from https://www.ruby-lang.org/en/documentation/. This could also improve SEO for the official documentation. -- https://bugs.ruby-lang.org/

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[ruby-core:122291] [Ruby Bug#21373] "Illegal instruction: 4" when raising SystemStackError after rescuing
by Ethan (Ethan -) 27 May '25

27 May '25

Issue #21373 has been reported by Ethan (Ethan -). ---------------------------------------- Bug #21373: "Illegal instruction: 4" when raising SystemStackError after rescuing https://bugs.ruby-lang.org/issues/21373 * Author: Ethan (Ethan -) * Status: Open * ruby -v: ruby 3.4.2 (2025-02-15 revision d2930f8e7a) +PRISM [x86_64-darwin22] * Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- I overflowed the stack in a test - this was rescued and tests continued, but when the next test also overflowed the stack, instead of handling the exception, ruby exited with "Illegal instruction: 4", exit code 132, and no other output (no stack trace or dump). A minimal reproduction follows. The C method JSON::Ext::Generator::GeneratorMethods::Hash#to_json alternates with X#to_json on the stack; this does not reproduce without the C method. This is on macos and does not reproduce on linux. ```ruby require 'json' class X def to_json(*args) {'data' => self}.to_json(*args) end end # raise and rescue once works fine begin JSON.dump(X.new) rescue SystemStackError end # upon overflowing stack a second time, ruby exits abnormally # with "Illegal instruction: 4" instead of SystemStackError JSON.dump(X.new) ``` -- https://bugs.ruby-lang.org/

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[ruby-core:122277] [Ruby Bug#21371] Proposal to Remove SPARC Architecture Support from Ruby
by ioquatix (Samuel Williams) 26 May '25

26 May '25

Issue #21371 has been reported by ioquatix (Samuel Williams). ---------------------------------------- Bug #21371: Proposal to Remove SPARC Architecture Support from Ruby https://bugs.ruby-lang.org/issues/21371 * Author: ioquatix (Samuel Williams) * Status: Open * Assignee: ioquatix (Samuel Williams) * Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- We propose removing support for the SPARC architecture from Ruby. SPARC has seen little to no community usage in recent years, and its continued presence in the codebase—particularly through special cases like rb_sparc_flush_register_windows—adds complexity without clear benefit. Removing SPARC support will reduce maintenance overhead and simplify Ruby’s internals. ## Proposal We propose removing all SPARC-specific code from the Ruby source tree, including `rb_sparc_flush_register_windows` and related build system conditionals. This change would be noted in the release documentation and targeted for inclusion in Ruby 4.0. -- https://bugs.ruby-lang.org/

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[ruby-core:121659] [Ruby Bug#21267] respond_to check in Class#allocate is inconsistent
by jhawthorn (John Hawthorn) 26 May '25

26 May '25

Issue #21267 has been reported by jhawthorn (John Hawthorn). ---------------------------------------- Bug #21267: respond_to check in Class#allocate is inconsistent https://bugs.ruby-lang.org/issues/21267 * Author: jhawthorn (John Hawthorn) * Status: Open * Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- `Class#allocate` has an additional `rb_obj_respond_to(klass, rb_intern("allocate"))` check to forbid allocate being called on a class where it has been made private or undefined, even if used via ex. `bind_call`. ``` >> Rational.allocate (irb):1:in '<main>': undefined method 'allocate' for class Rational (NoMethodError) >> Class.instance_method(:allocate).bind_call(Rational) (irb):1:in 'Class#allocate': calling Rational.allocate is prohibited (TypeError) ``` However I don't think this provides any additional protection from users accessing an uninitialized object, as the user can redefine allocate to anything to bypass the check: ``` >> Class.instance_method(:allocate).bind_call(Class.new(Rational) {def self.allocate; end}) => (0/1) ``` Or even override `respond_to_missing?` ``` >> Class.instance_method(:allocate).bind_call(Class.new(Rational) {def self.respond_to_missing? *; true; end}) => (0/1) ``` So I think we should remove this check. For classes that we need to forbid allocation we should use `rb_undef_alloc_func`. The classes I see this used for are: * MatchData * Refinement * Module * Complex * Rational My main motivation is that this check makes `Class#allocate` slow. There are ways we could improve that, but I don't think the check as-is is useful. If there's an alternative, more robust, check we'd like to do instead of simply removing this I'd be happy to implement it. This makes `allocate` ~75% faster. ``` |allocate_no_params | 19.009M| 20.087M| | | -| 1.06x| |allocate_allocate | 20.587M| 35.882M| | | -| 1.74x| ``` https://github.com/ruby/ruby/pull/13116 -- https://bugs.ruby-lang.org/

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[ruby-core:122240] [Ruby Bug#21363] `Namespace.current` should always return the Namespace in which it was defined
by tenderlovemaking (Aaron Patterson) 23 May '25

23 May '25

Issue #21363 has been reported by tenderlovemaking (Aaron Patterson). ---------------------------------------- Bug #21363: `Namespace.current` should always return the Namespace in which it was defined https://bugs.ruby-lang.org/issues/21363 * Author: tenderlovemaking (Aaron Patterson) * Status: Open * ruby -v: ruby 3.5.0dev (2025-05-22T23:07:21Z rm-assertion 17e71c7a24) +PRISM [arm64-darwin24] * Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- I think `Namespace.current` should always return the namespace in which it was defined. Here is an example to demonstrate what I mean: ```ruby File.binwrite("ns.rb", <<-RUBY) # namespace 3 module M def self.test p Namespace.current end TEST = -> { p Namespace.current } end RUBY ns = Namespace.new ns.load "./ns.rb" p Namespace.current ns::M.test ns::M::TEST.call ``` I expect the output of `ns::M.test` and `ns::M::TEST.call` to be the same. Instead the output is like this: ``` #<Namespace:2,user,main> #<Namespace:3,user,optional> #<Namespace:2,user,main> ``` I think a method and lambda defined in the same namespace should return the same value for `Namespace.current` -- https://bugs.ruby-lang.org/

1 1

[ruby-core:122252] [Ruby Bug#21366] [[]]
by vv3 (Mariusz A) 23 May '25

23 May '25

Issue #21366 has been reported by vv3 (Mariusz A). ---------------------------------------- Bug #21366: [[]] https://bugs.ruby-lang.org/issues/21366 * Author: vv3 (Mariusz A) * Status: Open * ruby -v: ruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [aarch64-linux-gnu] * Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:255:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 255 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _01(__VA_ARGS__, VALUE(*)(VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:256:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 256 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _02(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:257:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 257 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _03(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:258:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 258 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _04(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:259:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 259 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _05(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:260:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 260 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _06(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:261:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 261 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _07(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:262:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 262 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _08(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:263:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 263 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _09(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:264:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 264 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _10(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:265:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 265 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _11(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:266:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 266 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _12(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:267:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 267 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _13(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:268:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 268 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _14(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:269:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 269 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _15(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:275:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 275 | RBIMPL_ANYARGS_DECL(rb_define_method_id, VALUE, ID) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:251:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 251 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _m3(__VA_ARGS__, VALUE(*)(ANYARGS), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:252:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 252 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _m2(__VA_ARGS__, VALUE(*)(VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:253:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 253 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _m1(__VA_ARGS__, VALUE(*)(int, union { VALUE *x; const VALUE *y; } __attribute__((__transparent_union__)), VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:254:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 254 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _00(__VA_ARGS__, VALUE(*)(VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:255:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 255 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _01(__VA_ARGS__, VALUE(*)(VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:256:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 256 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _02(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:257:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 257 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _03(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:258:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 258 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _04(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:259:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 259 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _05(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:260:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 260 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _06(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:261:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 261 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _07(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:262:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 262 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _08(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:263:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 263 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _09(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:264:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 264 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _10(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:265:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 265 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _11(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:266:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 266 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _12(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:267:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 267 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _13(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:268:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 268 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _14(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); \ | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:249:38: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 249 | # define RBIMPL_ANYARGS_ATTRSET(sym) RBIMPL_ATTR_MAYBE_UNUSED() RBIMPL_ATTR_NONNULL(()) RBIMPL_ATTR_WEAKREF(sym) | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:269:1: note: in expansion of macro ‘RBIMPL_ANYARGS_ATTRSET’ 269 | RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _15(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE, VALUE), int); | ^~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/anyargs.h:276:1: note: in expansion of macro ‘RBIMPL_ANYARGS_DECL’ 276 | RBIMPL_ANYARGS_DECL(rb_define_method, VALUE, const char *) | ^~~~~~~~~~~~~~~~~~~ In file included from /usr/include/ruby-3.1.0/ruby/internal/core/rstring.h:30, from /usr/include/ruby-3.1.0/ruby/internal/arithmetic/char.h:29, from /usr/include/ruby-3.1.0/ruby/internal/arithmetic.h:23, from /usr/include/ruby-3.1.0/ruby/ruby.h:27: /usr/include/ruby-3.1.0/ruby/internal/fl_type.h: In function ‘RB_OBJ_TAINTABLE’: /usr/include/ruby-3.1.0/ruby/internal/fl_type.h:794:24: warning: unused parameter ‘obj’ [-Wunused-parameter] 794 | RB_OBJ_TAINTABLE(VALUE obj) | ~~~~~~^~~ /usr/include/ruby-3.1.0/ruby/internal/fl_type.h: In function ‘RB_OBJ_TAINTED_RAW’: /usr/include/ruby-3.1.0/ruby/internal/fl_type.h:811:26: warning: unused parameter ‘obj’ [-Wunused-parameter] 811 | RB_OBJ_TAINTED_RAW(VALUE obj) | ~~~~~~^~~ /usr/include/ruby-3.1.0/ruby/internal/fl_type.h: In function ‘RB_OBJ_TAINTED’: /usr/include/ruby-3.1.0/ruby/internal/fl_type.h:828:22: warning: unused parameter ‘obj’ [-Wunused-parameter] 828 | RB_OBJ_TAINTED(VALUE obj) | ~~~~~~^~~ /usr/include/ruby-3.1.0/ruby/internal/fl_type.h: In function ‘RB_OBJ_TAINT_RAW’: /usr/include/ruby-3.1.0/ruby/internal/fl_type.h:843:24: warning: unused parameter ‘obj’ [-Wunused-parameter] 843 | RB_OBJ_TAINT_RAW(VALUE obj) | ~~~~~~^~~ /usr/include/ruby-3.1.0/ruby/internal/fl_type.h: In function ‘RB_OBJ_TAINT’: /usr/include/ruby-3.1.0/ruby/internal/fl_type.h:858:20: warning: unused parameter ‘obj’ [-Wunused-parameter] 858 | RB_OBJ_TAINT(VALUE obj) | ~~~~~~^~~ /usr/include/ruby-3.1.0/ruby/internal/fl_type.h: In function ‘RB_OBJ_INFECT_RAW’: /usr/include/ruby-3.1.0/ruby/internal/fl_type.h:874:25: warning: unused parameter ‘dst’ [-Wunused-parameter] 874 | RB_OBJ_INFECT_RAW(VALUE dst, VALUE src) | ~~~~~~^~~ /usr/include/ruby-3.1.0/ruby/internal/fl_type.h:874:36: warning: unused parameter ‘src’ [-Wunused-parameter] 874 | RB_OBJ_INFECT_RAW(VALUE dst, VALUE src) | ~~~~~~^~~ /usr/include/ruby-3.1.0/ruby/internal/fl_type.h: In function ‘RB_OBJ_INFECT’: /usr/include/ruby-3.1.0/ruby/internal/fl_type.h:890:21: warning: unused parameter ‘dst’ [-Wunused-parameter] 890 | RB_OBJ_INFECT(VALUE dst, VALUE src) | ~~~~~~^~~ /usr/include/ruby-3.1.0/ruby/internal/fl_type.h:890:32: warning: unused parameter ‘src’ [-Wunused-parameter] 890 | RB_OBJ_INFECT(VALUE dst, VALUE src) | ~~~~~~^~~ /usr/include/ruby-3.1.0/ruby/internal/rgengc.h: At top level: /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/rgengc.h:365:5: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 365 | RBIMPL_ATTR_MAYBE_UNUSED() | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/rgengc.h:367:5: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 367 | RBIMPL_ATTR_MAYBE_UNUSED() | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/rgengc.h:393:5: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 393 | RBIMPL_ATTR_MAYBE_UNUSED() | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/rgengc.h:396:5: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 396 | RBIMPL_ATTR_MAYBE_UNUSED() | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/rgengc.h:398:5: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 398 | RBIMPL_ATTR_MAYBE_UNUSED() | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/rgengc.h:428:5: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 428 | RBIMPL_ATTR_MAYBE_UNUSED() | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/rgengc.h:430:5: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 430 | RBIMPL_ATTR_MAYBE_UNUSED() | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/core/rarray.h:418:24: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 418 | RBIMPL_ATTR_MAYBE_UNUSED() | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/internal/core/rarray.h:445:22: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 445 | RBIMPL_ATTR_MAYBE_UNUSED() | ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/include/ruby-3.1.0/ruby/ruby.h:44: /usr/include/ruby-3.1.0/ruby/internal/newobj.h: In function ‘rb_clone_setup’: /usr/include/ruby-3.1.0/ruby/internal/newobj.h:173:22: warning: unused parameter ‘clone’ [-Wunused-parameter] 173 | rb_clone_setup(VALUE clone, VALUE obj) | ~~~~~~^~~~~ /usr/include/ruby-3.1.0/ruby/internal/newobj.h:173:35: warning: unused parameter ‘obj’ [-Wunused-parameter] 173 | rb_clone_setup(VALUE clone, VALUE obj) | ~~~~~~^~~ /usr/include/ruby-3.1.0/ruby/internal/newobj.h: In function ‘rb_dup_setup’: /usr/include/ruby-3.1.0/ruby/internal/newobj.h:190:20: warning: unused parameter ‘dup’ [-Wunused-parameter] 190 | rb_dup_setup(VALUE dup, VALUE obj) | ~~~~~~^~~ /usr/include/ruby-3.1.0/ruby/internal/newobj.h:190:31: warning: unused parameter ‘obj’ [-Wunused-parameter] 190 | rb_dup_setup(VALUE dup, VALUE obj) | ~~~~~~^~~ /usr/include/ruby-3.1.0/ruby/internal/scan_args.h: At top level: /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/backward/2/attributes.h:163:28: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 163 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED() | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/scan_args.h:391:33: note: in expansion of macro ‘RB_UNUSED_VAR’ 391 | VALUE *vars[], RB_UNUSED_VAR(const char *fmt), RB_UNUSED_VAR(int varc)) | ^~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/attr/maybe_unused.h:31:37: warning: ISO C does not support ‘[[]]’ attributes before C2X [-Wpedantic] 31 | # define RBIMPL_ATTR_MAYBE_UNUSED() [[maybe_unused]] | ^ /usr/include/ruby-3.1.0/ruby/backward/2/attributes.h:163:28: note: in expansion of macro ‘RBIMPL_ATTR_MAYBE_UNUSED’ 163 | #define RB_UNUSED_VAR(x) x RBIMPL_ATTR_MAYBE_UNUSED() | ^~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/ruby-3.1.0/ruby/internal/scan_args.h:391:65: note: in expansion of macro ‘RB_UNUSED_VAR’ 391 | VALUE *vars[], RB_UNUSED_VAR(const char *fmt), RB_UNUSED_VAR(int varc)) ----- uname -a 6.12.20-current-sunxi64 #1 SMP Sat Mar 22 19:54:28 UTC 2025 aarch64 armbian orange pi zero 3 -- https://bugs.ruby-lang.org/

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[ruby-core:122248] [Ruby Bug#18455] `IO#close` has poor performance and difficult to understand semantics.
by ioquatix (Samuel Williams) 23 May '25

23 May '25

Issue #18455 has been updated by ioquatix (Samuel Williams). Status changed from Assigned to Closed After merging https://github.com/ruby/ruby/pull/12839, we see nice performance improvements and the semantics are well documented. ``` > make benchmark BENCH_RUBY=/Users/samuel/.rubies/ruby-head/bin/ruby COMPARE_RUBY=/Users/samuel/.rubies/ruby-a6435bef/bin/ruby ITEM=io_close /Users/samuel/.rubies/ruby-3.4.2/bin/ruby --disable=gems -rrubygems -I./benchmark/lib ./benchmark/benchmark-driver/exe/benchmark-driver \ --executables="compare-ruby::/Users/samuel/.rubies/ruby-a6435bef/bin/ruby -I.ext/common --disable-gem" \ --executables="built-ruby::/Users/samuel/.rubies/ruby-head/bin/ruby --disable-gem" \ --output=markdown --output-compare -v $(find ./benchmark -maxdepth 1 -name 'io_close' -o -name '*io_close*.yml' -o -name '*io_close*.rb' | sort) compare-ruby: ruby 3.5.0dev (2025-05-13T08:35:34Z master a6435befa7) +PRISM [arm64-darwin24] built-ruby: ruby 3.5.0dev (2025-05-17T00:42:12Z master aa0f689bf4) +PRISM [arm64-darwin24] last_commit=[ruby/net-http] Freeze some constants to improve Ractor compatibility # Iteration per second (i/s) | |compare-ruby|built-ruby| |:-------------------|-----------:|---------:| |io_close_contended | 117.394| 179.029| | | -| 1.53x| |io_close | 821.862| 900.114| | | -| 1.10x| ``` ---------------------------------------- Bug #18455: `IO#close` has poor performance and difficult to understand semantics. https://bugs.ruby-lang.org/issues/18455#change-113394 * Author: ioquatix (Samuel Williams) * Status: Closed * Assignee: ioquatix (Samuel Williams) * Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN ---------------------------------------- `IO#close` should be responsible for closing the file descriptor referred to by the IO instance. When dealing with buffered IO, one can also expect this to flush the internal buffers if possible. Currently, all blocking IO operations release the GVL and perform the blocking system call using `rb_thread_io_blocking_region`. The current implementation takes a file descriptor and adds an entry to the VM global `waiting_fds` list. When the operation is completed, the entry is removed from `waiting_fds`. When calling `IO#close`, this list is traversed and any threads performing blocking operations with a matching file descriptor are interrupted. The performance of this is O(number of blocking IO operations) which in practice the performance of `IO#close` can take milliseconds with 10,000 threads performing blocking IO. This performance is unacceptable. ``` ruby #!/usr/bin/env ruby require 'benchmark' class Reading def initialize @r, @w = IO.pipe @thread = Thread.new do @r.read rescue IOError # Ignore. end end attr :r attr :w attr :thread def join @thread.join end end def measure(count = 10) readings = count.times.map do Reading.new end sleep 10 duration = Benchmark.measure do readings.each do |reading| reading.r.close reading.w.close end end average = (duration.total / count) * 1000.0 pp count: count, average: sprintf("%0.2fms", average) readings.each(&:join) end measure( 10) measure( 100) measure( 1000) measure(10000) ``` In addition, the semantics of this operation are confusing at best. While Ruby programs are dealing with IO instances, the VM is dealing with file descriptors, in effect performing some internal de-duplication of IO state. In practice, this leads to strange behaviour: ``` ruby #!/usr/bin/env ruby r, w = IO.pipe r2 = IO.for_fd(r.to_i) pp r: r, r2: r2 t = Thread.new do r2.read rescue nil r2.read # EBADF end sleep 0.5 r.close t.join rescue nil pp r: r, r2: r2 # r is closed, r2 is valid but will raise EBADF on any operation. ``` In addition, this confusing behaviour extends to Ractor and state is leaked between the two: ``` ruby r, w = IO.pipe ractor = Ractor.new(r.to_i) do |fd| r2 = IO.for_fd(fd) r2.read # r2.read # EBADF end sleep 0.5 r.close pp take: ractor.take ``` I propose the following changes to simplify the semantics and improve performance: - Move the semantics of `waiting_fds` from per-fd to per-IO. This means that `IO#close` only interrupts blocking operations performed on the same IO instance rather than ANY IO which refers to the same file descriptor. I think this behaviour is easier to understand and still protects against the vast majority of incorrect usage. - Move the details of `struct rb_io_t` to `internal/io.h` so that the implementation details are not part of the public interface. ## Benchmarks Before: ``` {:count=>10, :average=>"0.19ms"} {:count=>100, :average=>"0.11ms"} {:count=>1000, :average=>"0.18ms"} {:count=>10000, :average=>"1.16ms"} ``` After: ``` {:count=>10, :average=>"0.20ms"} {:count=>100, :average=>"0.11ms"} {:count=>1000, :average=>"0.15ms"} {:count=>10000, :average=>"0.68ms"} ``` After investigating this further I found that the `rb_thread_io_blocking_region` using `ubf_select` can be incredibly slow, proportional to the number of threads. I don't know whether it's advisable but: ``` c BLOCKING_REGION(blocking_node.thread, { val = func(data1); saved_errno = errno; }, NULL /* ubf_select */, blocking_node.thread, FALSE); ``` Disabling the UBF function and relying on `read(fd, ...)`/`write(fd, ...)` blocking operations to fail when `close(fd)` is invoked might be sufficient? This needs more investigation but after making this change, we have constant-time IO#close. ``` {:count=>10, :average=>"0.13ms"} {:count=>100, :average=>"0.06ms"} {:count=>1000, :average=>"0.04ms"} {:count=>10000, :average=>"0.09ms"} ``` Which is ideally what we want. -- https://bugs.ruby-lang.org/

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[ruby-core:121215] [Ruby master Bug#21166] Fiber Scheduler is unable to be interrupted by `IO#close`.
by ioquatix (Samuel Williams) 23 May '25

23 May '25

Issue #21166 has been reported by ioquatix (Samuel Williams). ---------------------------------------- Bug #21166: Fiber Scheduler is unable to be interrupted by `IO#close`. https://bugs.ruby-lang.org/issues/21166 * Author: ioquatix (Samuel Williams) * Status: Open * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- ## Background Ruby's `IO#close` can cause `IO#read`, `IO#write`, `IO#wait`, `IO#wait_readable` and `IO#wait_writable` to be interrupted with an IOError (stream closed in another thread). For reference, `IO#select` cannot be interrupted in this way. ```ruby r, w = IO.pipe thread = Thread.new do r.read(1) end Thread.pass until thread.status == "sleep" r.close thread.join # ./test.rb:6:in 'IO#read': stream closed in another thread (IOError) ``` ## Problem The fiber scheduler provides hooks for `io_read`, `io_write` and `io_wait` which are used by `IO#read`, `IO#write`, `IO#wait`, `IO#wait_readable` and `IO#wait_writable`, but those hooks are not interrupted when `IO#close` is invoked. That is because `rb_notify_fd_close` is not scheduler aware, and the fiber scheduler is unable to register itself into the "waiting file descriptor" list. ```ruby #!/usr/bin/env ruby require 'async' r, w = IO.pipe thread = Thread.new do Async do r.wait_readable end end Thread.pass until thread.status == "sleep" r.close thread.join ``` In this test program, `rb_notify_fd_close` will incorrectly terminate the entire fiber scheduler thread: ``` #<Thread:0x00007faa5b161bf8 /home/samuel/Developer/socketry/io-event/test.rb:7 run> terminated with exception (report_on_exception is true): /home/samuel/Developer/socketry/io-event/lib/io/event/selector/select.rb:470:in 'IO.select': closed stream (IOError) from /home/samuel/Developer/socketry/io-event/lib/io/event/selector/select.rb:470:in 'block in IO::Event::Selector::Select#select' from /home/samuel/Developer/socketry/io-event/lib/io/event/selector/select.rb:468:in 'Thread.handle_interrupt' from /home/samuel/Developer/socketry/io-event/lib/io/event/selector/select.rb:468:in 'IO::Event::Selector::Select#select' from /home/samuel/.gem/ruby/3.4.1/gems/async-2.23.0/lib/async/scheduler.rb:396:in 'Async::Scheduler#run_once!' ... ``` ## Solution This PR introduces some new functions: - `VALUE rb_io_interruptible_operation(VALUE self, VALUE(*function)(VALUE), VALUE argument)` for wrapping user IO operations so they can be interrupted. - `IO#interruptable_operation(&block)` the same as above. - `VALUE rb_fiber_scheduler_fiber_interrupt(VALUE scheduler, VALUE fiber, VALUE exception)` for interrupting a specific fiber on the fiber scheduler. `rb_notify_fd_close` is modified so that it is fiber scheduler aware and uses `rb_fiber_scheduler_fiber_interrupt` to interrupt a fiber. In addition, we also change the internal `struct waiting_fd` to track the `rb_execution_context_t` rather than just the `rb_thread_t` instance, so that we can correctly wake up either the waiting thread or fiber. The public interface `rb_io_interruptible_operation` and `IO#interruptible_operation` are introduced so that the scheduler implementation can wrap IO operations that should be interruptible, e.g. ```ruby Fiber.schedule do io.interruptible_operation do io.wait_readable end end # Will interrupt above fiber: io.close ``` See <https://github.com/ruby/ruby/pull/12585> for the proposed implementation. -- https://bugs.ruby-lang.org/

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