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-rw-r--r--pad.c26
1 files changed, 19 insertions, 7 deletions
diff --git a/pad.c b/pad.c
index 0b105758d2..a3423499ee 100644
--- a/pad.c
+++ b/pad.c
@@ -319,10 +319,17 @@ children can still follow the full lexical scope chain.
void
Perl_cv_undef(pTHX_ CV *cv)
{
+ PERL_ARGS_ASSERT_CV_UNDEF;
+ cv_undef_flags(cv, 0);
+}
+
+void
+Perl_cv_undef_flags(pTHX_ CV *cv, U32 flags)
+{
const PADLIST *padlist = CvPADLIST(cv);
bool const slabbed = !!CvSLABBED(cv);
- PERL_ARGS_ASSERT_CV_UNDEF;
+ PERL_ARGS_ASSERT_CV_UNDEF_FLAGS;
DEBUG_X(PerlIO_printf(Perl_debug_log,
"CV undef: cv=0x%"UVxf" comppad=0x%"UVxf"\n",
@@ -365,8 +372,13 @@ Perl_cv_undef(pTHX_ CV *cv)
#endif
SvPOK_off(MUTABLE_SV(cv)); /* forget prototype */
sv_unmagic((SV *)cv, PERL_MAGIC_checkcall);
- if (CvNAMED(cv)) CvNAME_HEK_set(cv, NULL);
- else CvGV_set(cv, NULL);
+ if (!(flags & CV_UNDEF_KEEP_NAME)) {
+ if (CvNAMED(cv)) {
+ CvNAME_HEK_set(cv, NULL);
+ CvNAMED_off(cv);
+ }
+ else CvGV_set(cv, NULL);
+ }
/* This statement and the subsequence if block was pad_undef(). */
pad_peg("pad_undef");
@@ -469,10 +481,10 @@ Perl_cv_undef(pTHX_ CV *cv)
CvXSUB(cv) = NULL;
}
/* delete all flags except WEAKOUTSIDE and CVGV_RC, which indicate the
- * ref status of CvOUTSIDE and CvGV, and ANON and
- * LEXICAL, which pp_entersub uses
- * to choose an error message */
- CvFLAGS(cv) &= (CVf_WEAKOUTSIDE|CVf_CVGV_RC|CVf_ANON|CVf_LEXICAL);
+ * ref status of CvOUTSIDE and CvGV, and ANON, NAMED and
+ * LEXICAL, which are used to determine the sub's name. */
+ CvFLAGS(cv) &= (CVf_WEAKOUTSIDE|CVf_CVGV_RC|CVf_ANON|CVf_LEXICAL
+ |CVf_NAMED);
}
/*