perl/perl-5.8.8-U27512.patch

116 lines
3.6 KiB
Diff

--- perl-5.8.8/sv.c.U27512 2006-06-01 18:43:19.000000000 -0400
+++ perl-5.8.8/sv.c 2006-06-01 19:13:32.000000000 -0400
@@ -7993,6 +7993,52 @@
return rv;
}
+/* This is a hack to cope with reblessing from class with overloading magic to
+ one without (or the other way). Search for every reference pointing to the
+ object. Can't use S_visit() because we would need to pass a parameter to
+ our function. */
+static void
+S_reset_amagic(pTHX_ SV *rv, const bool on) {
+ /* It is assumed that you've already turned magic on/off on rv */
+ SV* sva;
+ SV *const target = SvRV(rv);
+ /* Less 1 for the reference we've already dealt with. */
+ U32 how_many = SvREFCNT(target) - 1;
+ MAGIC *mg;
+
+ if (SvMAGICAL(target) && (mg = mg_find(target, PERL_MAGIC_backref))) {
+ /* Back referneces also need to be found, but aren't part of the
+ target's reference count. */
+ how_many += 1 + av_len((AV*)mg->mg_obj);
+ }
+
+ if (!how_many) {
+ /* There was only 1 reference to this object. */
+ return;
+ }
+
+ for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
+ register const SV * const svend = &sva[SvREFCNT(sva)];
+ register SV* sv;
+ for (sv = sva + 1; sv < svend; ++sv) {
+ if (SvTYPE(sv) != SVTYPEMASK
+ && (sv->sv_flags & SVf_ROK) == SVf_ROK
+ && SvREFCNT(sv)
+ && SvRV(sv) == target
+ && sv != rv) {
+ if (on)
+ SvAMAGIC_on(sv);
+ else
+ SvAMAGIC_off(sv);
+ if (--how_many == 0) {
+ /* We have found them all. */
+ return;
+ }
+ }
+ }
+ }
+}
+
/*
=for apidoc sv_bless
@@ -8025,10 +8071,17 @@
(void)SvUPGRADE(tmpRef, SVt_PVMG);
SvSTASH_set(tmpRef, (HV*)SvREFCNT_inc(stash));
- if (Gv_AMG(stash))
- SvAMAGIC_on(sv);
- else
- SvAMAGIC_off(sv);
+ if (Gv_AMG(stash)) {
+ if (!SvAMAGIC(sv)) {
+ SvAMAGIC_on(sv);
+ S_reset_amagic(aTHX_ sv, TRUE);
+ }
+ } else {
+ if (SvAMAGIC(sv)) {
+ SvAMAGIC_off(sv);
+ S_reset_amagic(aTHX_ sv, FALSE);
+ }
+ }
if(SvSMAGICAL(tmpRef))
if(mg_find(tmpRef, PERL_MAGIC_ext) || mg_find(tmpRef, PERL_MAGIC_uvar))
--- perl-5.8.8/proto.h.U27512 2006-06-01 18:43:19.000000000 -0400
+++ perl-5.8.8/proto.h 2006-06-01 19:13:32.000000000 -0400
@@ -1875,6 +1875,7 @@
#
STATIC bool S_utf8_mg_pos(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 *offsetp, I32 uoff, const U8 **sp, const U8 *start, const U8 *send);
STATIC bool S_utf8_mg_pos_init(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 offsetp, const U8 *s, const U8 *start);
+STATIC void S_reset_amagic(pTHX_ SV *rv, const bool on);
#endif
#if defined(PERL_IN_TOKE_C) || defined(PERL_DECL_PROT)
--- perl-5.8.8/embed.h.U27512 2006-06-01 18:43:19.000000000 -0400
+++ perl-5.8.8/embed.h 2006-06-01 19:13:32.000000000 -0400
@@ -1348,6 +1348,7 @@
#ifdef PERL_CORE
#define utf8_mg_pos S_utf8_mg_pos
#define utf8_mg_pos_init S_utf8_mg_pos_init
+#define reset_amagic S_reset_amagic
#endif
#endif
#if defined(PERL_IN_TOKE_C) || defined(PERL_DECL_PROT)
@@ -3390,6 +3391,7 @@
#ifdef PERL_CORE
#define utf8_mg_pos(a,b,c,d,e,f,g,h,i) S_utf8_mg_pos(aTHX_ a,b,c,d,e,f,g,h,i)
#define utf8_mg_pos_init(a,b,c,d,e,f,g) S_utf8_mg_pos_init(aTHX_ a,b,c,d,e,f,g)
+#define reset_amagic(a,b) S_reset_amagic(aTHX_ a,b)
#endif
#endif
#if defined(PERL_IN_TOKE_C) || defined(PERL_DECL_PROT)
--- perl-5.8.8/embed.fnc.U27512 2006-06-01 18:43:19.000000000 -0400
+++ perl-5.8.8/embed.fnc 2006-06-01 19:13:32.000000000 -0400
@@ -1276,6 +1276,7 @@
s |bool |utf8_mg_pos_init |NN SV *sv|NN MAGIC **mgp \
|NN STRLEN **cachep|I32 i|I32 offsetp \
|NN const U8 *s|NN const U8 *start
+s |void |reset_amagic |NN SV *rv|const bool on
#endif
#if defined(PERL_IN_TOKE_C) || defined(PERL_DECL_PROT)