Ruby

[ruby/json] Fix Interoperability with Zlib::GzipReader

GzipReader offers both a read and to_io method. The read method returns
the uncompressed file as a string. The to_io method returns the
compressed file. The JSON.load method first tests for the to_io method...

[ruby/json] Prevent crashes with non-Proc as_json callbacks

Convert non-Proc callbacks through to_proc and validate the result in both configuration and the as_json setter. rb_convert_type accepts unrelated T_DATA objects without conversion, allowing them to reach Proc APIs and crash....

Re-read the refinement call cache set after growing it

rb_vm_insert_cc_refinement() kept a pointer into the embedded data of
vm->cc_refinement_set across the realloc of its entries. Under
GC.stress, ruby_xrealloc2_sized() runs a GC first, and when that GC...

Use pthread_sigmask in the GC read barrier signal handler

sigprocmask() is unspecified in multithreaded processes; on macOS it
left SIGSEGV/SIGBUS blocked on the faulting thread, so a second
read-barrier fault was never delivered and the process hung on the...

Unprotect all objspaces before a global compaction updates references

Match the per-objspace ordering of gc_compact_finish (unprotect, then
update) across objspaces, so the update pass never faults on a foreign
protected page and abandons that page's moves.

Deprecate RHASH_TBL

[Feature #22232]

Guaranteeing that any hash can be converted into an st_table is
limiting the evolution of RHash.

None of the public usages of RHASH_TBL were justified, they all
had equivalent rb_hash_* public APIs to perform the same thing...

Improve accuracy of ractor_memsize

ractor_memsize is missing accounting of many fields, this commit tries to
improve the accuracy of ractor_memsize.

Pend the Array#each replacement test in a box

The with_jit hooks that RubyVM::YJIT.enable runs change only the master box, so the main box keeps the C Array#each once it has called it, as this test does before enabling YJIT.

https://bugs.ruby-lang.org/issues/22306...

Pend the syntax_tree tests that need prism in a box

Under Ruby::Box the statically linked prism loads in only one box, so these tests raise LoadError once another test has required prism first.

https://bugs.ruby-lang.org/issues/22305

Co-Authored-By: Claude Opus 5.5 noreply@anthropic.com

Test Ractor.new with an instance of a class from the main box

Passing such an instance to Ractor.new used to raise undefined class/module under Ruby::Box, and master copies it fine now. Keep it that way.

Co-Authored-By: Claude Opus 5.5 noreply@anthropic.com