Yukihiro "Matz" Matsumoto 449040400a mruby-regexp: keep MatchData source/regexp GC-reachable ...

The mrb_match_data struct stores `source` and `regexp` as plain
mrb_value members of a C-allocated struct, which the GC does not
scan.  Under MRB_GC_STRESS the source string could be collected
while the MatchData was still alive, causing md[0] to read freed
memory (observed as "\xff\xff\xff").

Also stash source and regexp as instance variables on the MatchData
object so they remain reachable via the object's iv_tbl during GC.
The C struct members continue to provide fast direct access, and
no other call sites need to change.

Co-authored-by: Claude <noreply@anthropic.com>

2026-04-23 19:25:39 +09:00

..

re_compile.c

mruby-regexp: cache Pike VM state in pattern to avoid per-exec malloc

2026-04-23 19:25:34 +09:00

re_exec.c

mruby-regexp: cache Pike VM state in pattern to avoid per-exec malloc

2026-04-23 19:25:34 +09:00

re_utf8.c

mruby-regexp: add built-in regexp engine with Pike VM

2026-04-23 19:25:27 +09:00

regexp.c

mruby-regexp: keep MatchData source/regexp GC-reachable

2026-04-23 19:25:39 +09:00