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pp_ctl.c: comment on unreachable code #23965

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jkeenan wants to merge 2 commits into from
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pp_ctl.c: comment on unreachable code #23965

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6f60178
pp_ctl.c: Retain code but explain why we're doing so
jkeenan Nov 27, 2025
6d92ceb
pp_ctl.c pp_goto: Elaborate on rationale in comment
jkeenan Dec 1, 2025
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3 changes: 3 additions & 0 deletions pp_ctl.c
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Original file line number Diff line number Diff line change
Expand Up @@ -3596,6 +3596,9 @@ PP(pp_goto)
DIE(aTHX_ "Can't \"goto\" out of a pseudo block");
case CXt_DEFER:
/* diag_listed_as: Can't "%s" out of a "defer" block */
/* GH #23965: Retain in case of any hypothetical
* XS-constructed optrees which bypass the compile-time check.
* */
DIE(aTHX_ "Can't \"%s\" out of a \"%s\" block", "goto", S_defer_blockname(cx));
default:
if (ix)
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