ruby.git/iseq.c, branch v4.0.4

merge revision(s) c0d86a0103de7130943d54b4a290b76ec7e0c135,47e061277ac194a36659510bcf4f3190bde629a6: [Backport #21952]

2026-05-11T20:54:55+00:00

	class.c: rb_class_duplicate_classext also dup content of cvc_tbl

	[Bug #21952]

	Shallow copying the table result in the same memory being shared
	between multiple box, causing double free when one of the box
	is garbage collected.

	---

	class.c: Make cvc_tbl a managed object

	[Bug #21952]

	Solves the double-free or use after-free concern with boxes.
	Now entries can safely be used for copy-on-write.

	Also is likely necessary to make it save to read cvar from
	secondary ractors, as allowed since: ab32c0e690b805cdaaf264ad4c3421696c588204

- iseq.c: fix passing frozen option to compile_file_prism

2026-05-04T22:06:51+00:00

ISeq.compile_file was not switching on parser

2026-05-04T22:06:51+00:00

Fix coverage support for RubyVM::ISeq.compile

2026-05-04T22:06:21+00:00

[Bug #22018]

ISeq returned by `RubyVM::InstructionSequene.load_iseq` weren't
handled by the coverage module.

iseq.c: rb_estimate_iv_count handle no superclass

2026-04-14T17:34:41+00:00

[Bug #21992]

When redefining `BasicObject#initialize` there's no super class to
access.

Remove assertion in encoded_iseq_trace_instrument (#15616)

2025-12-18T18:51:33+00:00

`encoded_iseq_trace_instrument` is safe to call in a ractor if the iseq
is new. In that case, the VM lock is not taken. This assertion was added in
4fb537b1ee28bb37dbe551ac65c279d436c756bc.

refactor: utilize a predefined macro

2025-12-17T03:37:13+00:00

Make tracepoints with set_trace_func or TracePoint.new ractor local (#15468)

2025-12-16T19:06:55+00:00

Before this change, GC'ing any Ractor object caused you to lose all
enabled tracepoints across all ractors (even main). Now tracepoints are
ractor-local and this doesn't happen. Internal events are still global.

Fixes [Bug #19112]

Binding#implicit_parameters, etc. support the implicit "it" parameter

2025-12-12T14:24:50+00:00

[Bug #21049]

[DOC] Fix backticks in InstructionSequence docs

2025-11-29T01:43:26+00:00