/* sv.c
*
- * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, by Larry Wall and others
+ * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
- * "I wonder what the Entish is for 'yes' and 'no'," he thought.
+ */
+
+/*
+ * 'I wonder what the Entish is for "yes" and "no",' he thought.
+ * --Pippin
+ *
+ * [p.480 of _The Lord of the Rings_, III/iv: "Treebeard"]
+ */
+
+/*
*
*
* This file contains the code that creates, manipulates and destroys
}
}
+#ifdef PERL_MEM_LOG
+# define MEM_LOG_NEW_SV(sv, file, line, func) \
+ Perl_mem_log_new_sv(sv, file, line, func)
+# define MEM_LOG_DEL_SV(sv, file, line, func) \
+ Perl_mem_log_del_sv(sv, file, line, func)
+#else
+# define MEM_LOG_NEW_SV(sv, file, line, func) NOOP
+# define MEM_LOG_DEL_SV(sv, file, line, func) NOOP
+#endif
+
#ifdef DEBUG_LEAKING_SCALARS
# define FREE_SV_DEBUG_FILE(sv) Safefree((sv)->sv_debug_file)
+# define DEBUG_SV_SERIAL(sv) \
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) del_SV\n", \
+ PTR2UV(sv), (long)(sv)->sv_debug_serial))
#else
# define FREE_SV_DEBUG_FILE(sv)
+# define DEBUG_SV_SERIAL(sv) NOOP
#endif
#ifdef PERL_POISON
# define SvARENA_CHAIN(sv) ((sv)->sv_u.svu_rv)
+# define SvARENA_CHAIN_SET(sv,val) (sv)->sv_u.svu_rv = MUTABLE_SV((val))
/* Whilst I'd love to do this, it seems that things like to check on
unreferenced scalars
# define POSION_SV_HEAD(sv) PoisonNew(sv, 1, struct STRUCT_SV)
PoisonNew(&SvREFCNT(sv), 1, U32)
#else
# define SvARENA_CHAIN(sv) SvANY(sv)
+# define SvARENA_CHAIN_SET(sv,val) SvANY(sv) = (void *)(val)
# define POSION_SV_HEAD(sv)
#endif
+/* Mark an SV head as unused, and add to free list.
+ *
+ * If SVf_BREAK is set, skip adding it to the free list, as this SV had
+ * its refcount artificially decremented during global destruction, so
+ * there may be dangling pointers to it. The last thing we want in that
+ * case is for it to be reused. */
+
#define plant_SV(p) \
STMT_START { \
+ const U32 old_flags = SvFLAGS(p); \
+ MEM_LOG_DEL_SV(p, __FILE__, __LINE__, FUNCTION__); \
+ DEBUG_SV_SERIAL(p); \
FREE_SV_DEBUG_FILE(p); \
POSION_SV_HEAD(p); \
- SvARENA_CHAIN(p) = (void *)PL_sv_root; \
SvFLAGS(p) = SVTYPEMASK; \
- PL_sv_root = (p); \
+ if (!(old_flags & SVf_BREAK)) { \
+ SvARENA_CHAIN_SET(p, PL_sv_root); \
+ PL_sv_root = (p); \
+ } \
--PL_sv_count; \
} STMT_END
#define uproot_SV(p) \
STMT_START { \
(p) = PL_sv_root; \
- PL_sv_root = (SV*)SvARENA_CHAIN(p); \
+ PL_sv_root = MUTABLE_SV(SvARENA_CHAIN(p)); \
++PL_sv_count; \
} STMT_END
#ifdef DEBUG_LEAKING_SCALARS
/* provide a real function for a debugger to play with */
STATIC SV*
-S_new_SV(pTHX)
+S_new_SV(pTHX_ const char *file, int line, const char *func)
{
SV* sv;
sv->sv_debug_inpad = 0;
sv->sv_debug_cloned = 0;
sv->sv_debug_file = PL_curcop ? savepv(CopFILE(PL_curcop)): NULL;
-
+
+ sv->sv_debug_serial = PL_sv_serial++;
+
+ MEM_LOG_NEW_SV(sv, file, line, func);
+ DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) new_SV (from %s:%d [%s])\n",
+ PTR2UV(sv), (long)sv->sv_debug_serial, file, line, func));
+
return sv;
}
-# define new_SV(p) (p)=S_new_SV(aTHX)
+# define new_SV(p) (p)=S_new_SV(aTHX_ __FILE__, __LINE__, FUNCTION__)
#else
# define new_SV(p) \
SvANY(p) = 0; \
SvREFCNT(p) = 1; \
SvFLAGS(p) = 0; \
+ MEM_LOG_NEW_SV(p, __FILE__, __LINE__, FUNCTION__); \
} STMT_END
#endif
if (DEBUG_D_TEST) {
SV* sva;
bool ok = 0;
- for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
+ for (sva = PL_sv_arenaroot; sva; sva = MUTABLE_SV(SvANY(sva))) {
const SV * const sv = sva + 1;
const SV * const svend = &sva[SvREFCNT(sva)];
if (p >= sv && p < svend) {
=cut
*/
-void
-Perl_sv_add_arena(pTHX_ char *const ptr, const U32 size, const U32 flags)
+static void
+S_sv_add_arena(pTHX_ char *const ptr, const U32 size, const U32 flags)
{
dVAR;
- SV* const sva = (SV*)ptr;
+ SV *const sva = MUTABLE_SV(ptr);
register SV* sv;
register SV* svend;
svend = &sva[SvREFCNT(sva) - 1];
sv = sva + 1;
while (sv < svend) {
- SvARENA_CHAIN(sv) = (void *)(SV*)(sv + 1);
+ SvARENA_CHAIN_SET(sv, (sv + 1));
#ifdef DEBUGGING
SvREFCNT(sv) = 0;
#endif
SvFLAGS(sv) = SVTYPEMASK;
sv++;
}
- SvARENA_CHAIN(sv) = 0;
+ SvARENA_CHAIN_SET(sv, 0);
#ifdef DEBUGGING
SvREFCNT(sv) = 0;
#endif
PERL_ARGS_ASSERT_VISIT;
- for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
+ for (sva = PL_sv_arenaroot; sva; sva = MUTABLE_SV(SvANY(sva))) {
register const SV * const svend = &sva[SvREFCNT(sva)];
register SV* sv;
for (sv = sva + 1; sv < svend; ++sv) {
do_clean_all(pTHX_ SV *const sv)
{
dVAR;
- if (sv == (SV*) PL_fdpid || sv == (SV *)PL_strtab) {
+ if (sv == (const SV *) PL_fdpid || sv == (const SV *)PL_strtab) {
/* don't clean pid table and strtab */
return;
}
contiguity of the fake ones with the corresponding real ones.) */
for (sva = PL_sv_arenaroot; sva; sva = svanext) {
- svanext = (SV*) SvANY(sva);
+ svanext = MUTABLE_SV(SvANY(sva));
while (svanext && SvFAKE(svanext))
- svanext = (SV*) SvANY(svanext);
+ svanext = MUTABLE_SV(SvANY(svanext));
if (!SvFAKE(sva))
Safefree(sva);
#define copy_length(type, last_member) \
STRUCT_OFFSET(type, last_member) \
- + sizeof (((type*)SvANY((SV*)0))->last_member)
+ + sizeof (((type*)SvANY((const SV *)0))->last_member)
static const struct body_details bodies_by_type[] = {
{ sizeof(HE), 0, 0, SVt_NULL,
}
else {
if (isGV_with_GP(sv))
- return glob_2number((GV *)sv);
+ return glob_2number(MUTABLE_GV(sv));
if (!(SvFLAGS(sv) & SVs_PADTMP)) {
if (!PL_localizing && ckWARN(WARN_UNINITIALIZED))
}
else {
if (isGV_with_GP(sv)) {
- glob_2number((GV *)sv);
+ glob_2number(MUTABLE_GV(sv));
return 0.0;
}
STRLEN len;
char *retval;
char *buffer;
- const SV *const referent = (SV*)SvRV(sv);
+ SV *const referent = SvRV(sv);
if (!referent) {
len = 7;
retval = buffer = savepvn("NULLREF", len);
} else if (SvTYPE(referent) == SVt_REGEXP) {
- const REGEXP * const re = (REGEXP *)referent;
+ REGEXP * const re = (REGEXP *)MUTABLE_PTR(referent);
I32 seen_evals = 0;
assert(re);
*s = '\0';
}
else if (SvNOKp(sv)) {
- const int olderrno = errno;
+ dSAVE_ERRNO;
if (SvTYPE(sv) < SVt_PVNV)
sv_upgrade(sv, SVt_PVNV);
/* The +20 is pure guesswork. Configure test needed. --jhi */
{
Gconvert(SvNVX(sv), NV_DIG, 0, s);
}
- errno = olderrno;
+ RESTORE_ERRNO;
#ifdef FIXNEGATIVEZERO
if (*s == '-' && s[1] == '0' && !s[2]) {
s[0] = '0';
}
else {
if (isGV_with_GP(sv))
- return glob_2pv((GV *)sv, lp);
+ return glob_2pv(MUTABLE_GV(sv), lp);
if (lp)
*lp = 0;
Converts the PV of an SV to its UTF-8-encoded form.
Forces the SV to string form if it is not already.
+Will C<mg_get> on C<sv> if appropriate.
Always sets the SvUTF8 flag to avoid future validity checks even
-if all the bytes have hibit clear.
+if the whole string is the same in UTF-8 as not.
+Returns the number of bytes in the converted string
This is not as a general purpose byte encoding to Unicode interface:
use the Encode extension for that.
Converts the PV of an SV to its UTF-8-encoded form.
Forces the SV to string form if it is not already.
Always sets the SvUTF8 flag to avoid future validity checks even
-if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set,
-will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and
+if all the bytes are invariant in UTF-8. If C<flags> has C<SV_GMAGIC> bit set,
+will C<mg_get> on C<sv> if appropriate, else not.
+Returns the number of bytes in the converted string
+C<sv_utf8_upgrade> and
C<sv_utf8_upgrade_nomg> are implemented in terms of this function.
This is not as a general purpose byte encoding to Unicode interface:
sv_recode_to_utf8(sv, PL_encoding);
else { /* Assume Latin-1/EBCDIC */
/* This function could be much more efficient if we
- * had a FLAG in SVs to signal if there are any hibit
+ * had a FLAG in SVs to signal if there are any variant
* chars in the PV. Given that there isn't such a flag
* make the loop as fast as possible. */
const U8 * const s = (U8 *) SvPVX_const(sv);
while (t < e) {
const U8 ch = *t++;
- /* Check for hi bit */
+ /* Check for variant */
if (!NATIVE_IS_INVARIANT(ch)) {
STRLEN len = SvCUR(sv);
/* *Currently* bytes_to_utf8() adds a '\0' after every string
break;
}
}
- /* Mark as UTF-8 even if no hibit - saves scanning loop */
+ /* Mark as UTF-8 even if no variant - saves scanning loop */
SvUTF8_on(sv);
}
return SvCUR(sv);
=for apidoc sv_utf8_downgrade
Attempts to convert the PV of an SV from characters to bytes.
-If the PV contains a character beyond byte, this conversion will fail;
+If the PV contains a character that cannot fit
+in a byte, this conversion will fail;
in this case, either returns false or, if C<fail_ok> is not
true, croaks.
sv_force_normal_flags(sv, 0);
}
if (SvREADONLY(sv)) {
- Perl_croak(aTHX_ PL_no_modify);
+ Perl_croak(aTHX_ "%s", PL_no_modify);
}
(void) sv_utf8_upgrade(sv);
SvUTF8_off(sv);
}
GvSTASH(dstr) = GvSTASH(sstr);
if (GvSTASH(dstr))
- Perl_sv_add_backref(aTHX_ (SV*)GvSTASH(dstr), dstr);
- gv_name_set((GV *)dstr, name, len, GV_ADD);
+ Perl_sv_add_backref(aTHX_ MUTABLE_SV(GvSTASH(dstr)), dstr);
+ gv_name_set(MUTABLE_GV(dstr), name, len, GV_ADD);
SvFAKE_on(dstr); /* can coerce to non-glob */
}
#ifdef GV_UNIQUE_CHECK
- if (GvUNIQUE((GV*)dstr)) {
- Perl_croak(aTHX_ PL_no_modify);
+ if (GvUNIQUE((const GV *)dstr)) {
+ Perl_croak(aTHX_ "%s", PL_no_modify);
}
#endif
- if(GvGP((GV*)sstr)) {
+ if(GvGP(MUTABLE_GV(sstr))) {
/* If source has method cache entry, clear it */
if(GvCVGEN(sstr)) {
SvREFCNT_dec(GvCV(sstr));
}
/* If source has a real method, then a method is
going to change */
- else if(GvCV((GV*)sstr)) {
+ else if(GvCV((const GV *)sstr)) {
mro_changes = 1;
}
}
/* If dest already had a real method, that's a change as well */
- if(!mro_changes && GvGP((GV*)dstr) && GvCVu((GV*)dstr)) {
+ if(!mro_changes && GvGP(MUTABLE_GV(dstr)) && GvCVu((const GV *)dstr)) {
mro_changes = 1;
}
- if(strEQ(GvNAME((GV*)dstr),"ISA"))
+ if(strEQ(GvNAME((const GV *)dstr),"ISA"))
mro_changes = 2;
- gp_free((GV*)dstr);
+ gp_free(MUTABLE_GV(dstr));
isGV_with_GP_off(dstr);
(void)SvOK_off(dstr);
isGV_with_GP_on(dstr);
PERL_ARGS_ASSERT_GLOB_ASSIGN_REF;
#ifdef GV_UNIQUE_CHECK
- if (GvUNIQUE((GV*)dstr)) {
- Perl_croak(aTHX_ PL_no_modify);
+ if (GvUNIQUE((const GV *)dstr)) {
+ Perl_croak(aTHX_ "%s", PL_no_modify);
}
#endif
if (intro) {
GvINTRO_off(dstr); /* one-shot flag */
GvLINE(dstr) = CopLINE(PL_curcop);
- GvEGV(dstr) = (GV*)dstr;
+ GvEGV(dstr) = MUTABLE_GV(dstr);
}
GvMULTI_on(dstr);
switch (stype) {
common:
if (intro) {
if (stype == SVt_PVCV) {
- /*if (GvCVGEN(dstr) && (GvCV(dstr) != (CV*)sref || GvCVGEN(dstr))) {*/
+ /*if (GvCVGEN(dstr) && (GvCV(dstr) != (const CV *)sref || GvCVGEN(dstr))) {*/
if (GvCVGEN(dstr)) {
SvREFCNT_dec(GvCV(dstr));
GvCV(dstr) = NULL;
else
dref = *location;
if (stype == SVt_PVCV && (*location != sref || GvCVGEN(dstr))) {
- CV* const cv = (CV*)*location;
+ CV* const cv = MUTABLE_CV(*location);
if (cv) {
- if (!GvCVGEN((GV*)dstr) &&
+ if (!GvCVGEN((const GV *)dstr) &&
(CvROOT(cv) || CvXSUB(cv)))
{
/* Redefining a sub - warning is mandatory if
it was a const and its value changed. */
- if (CvCONST(cv) && CvCONST((CV*)sref)
- && cv_const_sv(cv) == cv_const_sv((CV*)sref)) {
+ if (CvCONST(cv) && CvCONST((const CV *)sref)
+ && cv_const_sv(cv)
+ == cv_const_sv((const CV *)sref)) {
NOOP;
/* They are 2 constant subroutines generated from
the same constant. This probably means that
}
else if (ckWARN(WARN_REDEFINE)
|| (CvCONST(cv)
- && (!CvCONST((CV*)sref)
+ && (!CvCONST((const CV *)sref)
|| sv_cmp(cv_const_sv(cv),
- cv_const_sv((CV*)sref))))) {
+ cv_const_sv((const CV *)
+ sref))))) {
Perl_warner(aTHX_ packWARN(WARN_REDEFINE),
(const char *)
(CvCONST(cv)
? "Constant subroutine %s::%s redefined"
: "Subroutine %s::%s redefined"),
- HvNAME_get(GvSTASH((GV*)dstr)),
- GvENAME((GV*)dstr));
+ HvNAME_get(GvSTASH((const GV *)dstr)),
+ GvENAME(MUTABLE_GV(dstr)));
}
}
if (!intro)
- cv_ckproto_len(cv, (GV*)dstr,
+ cv_ckproto_len(cv, (const GV *)dstr,
SvPOK(sref) ? SvPVX_const(sref) : NULL,
SvPOK(sref) ? SvCUR(sref) : 0);
}
Perl_croak(aTHX_ "Cannot copy to %s", type);
} else if (sflags & SVf_ROK) {
if (isGV_with_GP(dstr) && dtype == SVt_PVGV
- && SvTYPE(SvRV(sstr)) == SVt_PVGV) {
+ && SvTYPE(SvRV(sstr)) == SVt_PVGV && isGV_with_GP(SvRV(sstr))) {
sstr = SvRV(sstr);
if (sstr == dstr) {
if (GvIMPORTED(dstr) != GVf_IMPORTED
GvMULTI_on(dstr);
return;
}
- if (isGV_with_GP(sstr)) {
- glob_assign_glob(dstr, sstr, dtype);
- return;
- }
+ glob_assign_glob(dstr, sstr, dtype);
+ return;
}
if (dtype >= SVt_PV) {
}
else {
GV *gv = gv_fetchsv(sstr, GV_ADD, SVt_PVGV);
- if (dstr != (SV*)gv) {
+ if (dstr != (const SV *)gv) {
if (GvGP(dstr))
- gp_free((GV*)dstr);
+ gp_free(MUTABLE_GV(dstr));
GvGP(dstr) = gp_ref(GvGP(gv));
}
}
/* FAKE globs can get coerced, so need to turn this off
temporarily if it is on. */
SvFAKE_off(sstr);
- gv_efullname3(dstr, (GV *)sstr, "*");
+ gv_efullname3(dstr, MUTABLE_GV(sstr), "*");
SvFLAGS(sstr) |= wasfake;
}
else
}
}
else if (IN_PERL_RUNTIME)
- Perl_croak(aTHX_ PL_no_modify);
+ Perl_croak(aTHX_ "%s", PL_no_modify);
/* At this point I believe that I can drop the global SV mutex. */
}
#else
unshare_hek(SvSHARED_HEK_FROM_PV(pvx));
}
else if (IN_PERL_RUNTIME)
- Perl_croak(aTHX_ PL_no_modify);
+ Perl_croak(aTHX_ "%s", PL_no_modify);
}
#endif
if (SvROK(sv))
how == PERL_MAGIC_arylen ||
how == PERL_MAGIC_symtab ||
(SvTYPE(obj) == SVt_PVGV &&
- (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv ||
- GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv ||
- GvFORM(obj) == (CV*)sv)))
+ (GvSV(obj) == sv || GvHV(obj) == (const HV *)sv
+ || GvAV(obj) == (const AV *)sv || GvCV(obj) == (const CV *)sv
+ || GvIOp(obj) == (const IO *)sv || GvFORM(obj) == (const CV *)sv)))
{
mg->mg_obj = obj;
}
*/
if (how == PERL_MAGIC_tiedscalar && SvTYPE(sv) == SVt_PVIO &&
- obj && SvROK(obj) && GvIO(SvRV(obj)) == (IO*)sv)
+ obj && SvROK(obj) && GvIO(SvRV(obj)) == (const IO *)sv)
{
sv_rvweaken(obj);
}
if (name) {
if (namlen > 0)
mg->mg_ptr = savepvn(name, namlen);
- else if (namlen == HEf_SVKEY)
- mg->mg_ptr = (char*)SvREFCNT_inc_simple_NN((SV*)name);
- else
+ else if (namlen == HEf_SVKEY) {
+ /* Yes, this is casting away const. This is only for the case of
+ HEf_SVKEY. I think we need to document this abberation of the
+ constness of the API, rather than making name non-const, as
+ that change propagating outwards a long way. */
+ mg->mg_ptr = (char*)SvREFCNT_inc_simple_NN((SV *)name);
+ } else
mg->mg_ptr = (char *) name;
}
mg->mg_virtual = (MGVTBL *) vtable;
&& how != PERL_MAGIC_backref
)
{
- Perl_croak(aTHX_ PL_no_modify);
+ Perl_croak(aTHX_ "%s", PL_no_modify);
}
}
if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) {
if (mg->mg_len > 0)
Safefree(mg->mg_ptr);
else if (mg->mg_len == HEf_SVKEY)
- SvREFCNT_dec((SV*)mg->mg_ptr);
+ SvREFCNT_dec(MUTABLE_SV(mg->mg_ptr));
else if (mg->mg_type == PERL_MAGIC_utf8)
Safefree(mg->mg_ptr);
}
* back-reference to sv onto the array associated with the backref magic.
*/
+/* A discussion about the backreferences array and its refcount:
+ *
+ * The AV holding the backreferences is pointed to either as the mg_obj of
+ * PERL_MAGIC_backref, or in the specific case of a HV that has the hv_aux
+ * structure, from the xhv_backreferences field. (A HV without hv_aux will
+ * have the standard magic instead.) The array is created with a refcount
+ * of 2. This means that if during global destruction the array gets
+ * picked on first to have its refcount decremented by the random zapper,
+ * it won't actually be freed, meaning it's still theere for when its
+ * parent gets freed.
+ * When the parent SV is freed, in the case of magic, the magic is freed,
+ * Perl_magic_killbackrefs is called which decrements one refcount, then
+ * mg_obj is freed which kills the second count.
+ * In the vase of a HV being freed, one ref is removed by
+ * Perl_hv_kill_backrefs, the other by Perl_sv_kill_backrefs, which it
+ * calls.
+ */
+
void
Perl_sv_add_backref(pTHX_ SV *const tsv, SV *const sv)
{
PERL_ARGS_ASSERT_SV_ADD_BACKREF;
if (SvTYPE(tsv) == SVt_PVHV) {
- AV **const avp = Perl_hv_backreferences_p(aTHX_ (HV*)tsv);
+ AV **const avp = Perl_hv_backreferences_p(aTHX_ MUTABLE_HV(tsv));
av = *avp;
if (!av) {
if (mg) {
/* Aha. They've got it stowed in magic. Bring it back. */
- av = (AV*)mg->mg_obj;
+ av = MUTABLE_AV(mg->mg_obj);
/* Stop mg_free decreasing the refernce count. */
mg->mg_obj = NULL;
/* Stop mg_free even calling the destructor, given that
} else {
av = newAV();
AvREAL_off(av);
- SvREFCNT_inc_simple_void(av);
+ SvREFCNT_inc_simple_void(av); /* see discussion above */
}
*avp = av;
}
const MAGIC *const mg
= SvMAGICAL(tsv) ? mg_find(tsv, PERL_MAGIC_backref) : NULL;
if (mg)
- av = (AV*)mg->mg_obj;
+ av = MUTABLE_AV(mg->mg_obj);
else {
av = newAV();
AvREAL_off(av);
- sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0);
- /* av now has a refcnt of 2, which avoids it getting freed
- * before us during global cleanup. The extra ref is removed
- * by magic_killbackrefs() when tsv is being freed */
+ sv_magic(tsv, MUTABLE_SV(av), PERL_MAGIC_backref, NULL, 0);
+ /* av now has a refcnt of 2; see discussion above */
}
}
if (AvFILLp(av) >= AvMAX(av)) {
PERL_ARGS_ASSERT_SV_DEL_BACKREF;
if (SvTYPE(tsv) == SVt_PVHV && SvOOK(tsv)) {
- av = *Perl_hv_backreferences_p(aTHX_ (HV*)tsv);
+ av = *Perl_hv_backreferences_p(aTHX_ MUTABLE_HV(tsv));
/* We mustn't attempt to "fix up" the hash here by moving the
backreference array back to the hv_aux structure, as that is stored
in the main HvARRAY(), and hfreentries assumes that no-one
const MAGIC *const mg
= SvMAGICAL(tsv) ? mg_find(tsv, PERL_MAGIC_backref) : NULL;
if (mg)
- av = (AV *)mg->mg_obj;
+ av = MUTABLE_AV(mg->mg_obj);
}
- if (!av) {
- if (PL_in_clean_all)
- return;
+
+ if (!av)
Perl_croak(aTHX_ "panic: del_backref");
- }
- if (SvIS_FREED(av))
- return;
+ assert(!SvIS_FREED(av));
svp = AvARRAY(av);
/* We shouldn't be in here more than once, but for paranoia reasons lets
PERL_ARGS_ASSERT_SV_KILL_BACKREFS;
PERL_UNUSED_ARG(sv);
- /* Not sure why the av can get freed ahead of its sv, but somehow it does
- in ext/B/t/bytecode.t test 15 (involving print <DATA>) */
- if (svp && !SvIS_FREED(av)) {
+ assert(!svp || !SvIS_FREED(av));
+ if (svp) {
SV *const *const last = svp + AvFILLp(av);
while (svp <= last) {
SvTYPE(referrer) == SVt_PVLV) {
/* You lookin' at me? */
assert(GvSTASH(referrer));
- assert(GvSTASH(referrer) == (HV*)sv);
+ assert(GvSTASH(referrer) == (const HV *)sv);
GvSTASH(referrer) = 0;
} else {
Perl_croak(aTHX_
PUSHMARK(SP);
PUSHs(tmpref);
PUTBACK;
- call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR|G_VOID);
+ call_sv(MUTABLE_SV(destructor), G_DISCARD|G_EVAL|G_KEEPERR|G_VOID);
POPSTACK;
IoIFP(sv) != PerlIO_stdout() &&
IoIFP(sv) != PerlIO_stderr())
{
- io_close((IO*)sv, FALSE);
+ io_close(MUTABLE_IO(sv), FALSE);
}
if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP))
PerlDir_close(IoDIRP(sv));
goto freescalar;
case SVt_PVCV:
case SVt_PVFM:
- cv_undef((CV*)sv);
+ cv_undef(MUTABLE_CV(sv));
goto freescalar;
case SVt_PVHV:
- Perl_hv_kill_backrefs(aTHX_ (HV*)sv);
- hv_undef((HV*)sv);
+ if (PL_last_swash_hv == (const HV *)sv) {
+ PL_last_swash_hv = NULL;
+ }
+ Perl_hv_kill_backrefs(aTHX_ MUTABLE_HV(sv));
+ hv_undef(MUTABLE_HV(sv));
break;
case SVt_PVAV:
- if (PL_comppad == (AV*)sv) {
+ if (PL_comppad == MUTABLE_AV(sv)) {
PL_comppad = NULL;
PL_curpad = NULL;
}
- av_undef((AV*)sv);
+ av_undef(MUTABLE_AV(sv));
break;
case SVt_PVLV:
if (LvTYPE(sv) == 'T') { /* for tie: return HE to pool */
SvREFCNT_dec(LvTARG(sv));
case SVt_PVGV:
if (isGV_with_GP(sv)) {
- if(GvCVu((GV*)sv) && (stash = GvSTASH((GV*)sv)) && HvNAME_get(stash))
+ if(GvCVu((const GV *)sv) && (stash = GvSTASH(MUTABLE_GV(sv)))
+ && HvNAME_get(stash))
mro_method_changed_in(stash);
- gp_free((GV*)sv);
+ gp_free(MUTABLE_GV(sv));
if (GvNAME_HEK(sv))
unshare_hek(GvNAME_HEK(sv));
/* If we're in a stash, we don't own a reference to it. However it does
have a back reference to us, which needs to be cleared. */
if (!SvVALID(sv) && (stash = GvSTASH(sv)))
- sv_del_backref((SV*)stash, sv);
+ sv_del_backref(MUTABLE_SV(stash), sv);
}
/* FIXME. There are probably more unreferenced pointers to SVs in the
interpreter struct that we should check and tidy in a similar
fashion to this: */
- if ((GV*)sv == PL_last_in_gv)
+ if ((const GV *)sv == PL_last_in_gv)
PL_last_in_gv = NULL;
case SVt_PVMG:
case SVt_PVNV:
#endif
if (bytesread < 0)
bytesread = 0;
- SvCUR_set(sv, bytesread += append);
+ SvCUR_set(sv, bytesread + append);
buffer[bytesread] = '\0';
goto return_string_or_null;
}
sv_force_normal_flags(sv, 0);
if (SvREADONLY(sv)) {
if (IN_PERL_RUNTIME)
- Perl_croak(aTHX_ PL_no_modify);
+ Perl_croak(aTHX_ "%s", PL_no_modify);
}
if (SvROK(sv)) {
IV i;
sv_force_normal_flags(sv, 0);
if (SvREADONLY(sv)) {
if (IN_PERL_RUNTIME)
- Perl_croak(aTHX_ PL_no_modify);
+ Perl_croak(aTHX_ "%s", PL_no_modify);
}
if (SvROK(sv)) {
IV i;
if (!hash)
PERL_HASH(hash, src, len);
new_SV(sv);
+ /* The logic for this is inlined in S_mro_get_linear_isa_dfs(), so if it
+ changes here, update it there too. */
sv_upgrade(sv, SVt_PV);
SvPV_set(sv, sharepvn(src, is_utf8?-len:len, hash));
SvCUR_set(sv, len);
return;
if (!*s) { /* reset ?? searches */
- MAGIC * const mg = mg_find((SV *)stash, PERL_MAGIC_symtab);
+ MAGIC * const mg = mg_find((const SV *)stash, PERL_MAGIC_symtab);
if (mg) {
const U32 count = mg->mg_len / sizeof(PMOP**);
PMOP **pmp = (PMOP**) mg->mg_ptr;
if (!todo[(U8)*HeKEY(entry)])
continue;
- gv = (GV*)HeVAL(entry);
+ gv = MUTABLE_GV(HeVAL(entry));
sv = GvSV(gv);
if (sv) {
if (SvTHINKFIRST(sv)) {
switch (SvTYPE(sv)) {
case SVt_PVIO:
- io = (IO*)sv;
+ io = MUTABLE_IO(sv);
break;
case SVt_PVGV:
if (isGV_with_GP(sv)) {
- gv = (GV*)sv;
+ gv = MUTABLE_GV(sv);
io = GvIO(gv);
if (!io)
Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv));
case SVt_PVCV:
*st = CvSTASH(sv);
*gvp = NULL;
- return (CV*)sv;
+ return MUTABLE_CV(sv);
case SVt_PVHV:
case SVt_PVAV:
*st = NULL;
return NULL;
case SVt_PVGV:
if (isGV_with_GP(sv)) {
- gv = (GV*)sv;
+ gv = MUTABLE_GV(sv);
*gvp = gv;
*st = GvESTASH(gv);
goto fix_gv;
sv = SvRV(sv);
if (SvTYPE(sv) == SVt_PVCV) {
- cv = (CV*)sv;
+ cv = MUTABLE_CV(sv);
*gvp = NULL;
*st = CvSTASH(cv);
return cv;
}
else if(isGV_with_GP(sv))
- gv = (GV*)sv;
+ gv = MUTABLE_GV(sv);
else
Perl_croak(aTHX_ "Not a subroutine reference");
}
else if (isGV_with_GP(sv)) {
SvGETMAGIC(sv);
- gv = (GV*)sv;
+ gv = MUTABLE_GV(sv);
}
else
gv = gv_fetchsv(sv, lref, SVt_PVCV); /* Calls get magic */
SvGETMAGIC(sv);
if (!SvROK(sv))
return 0;
- sv = (SV*)SvRV(sv);
+ sv = SvRV(sv);
if (!SvOBJECT(sv))
return 0;
return 1;
SvGETMAGIC(sv);
if (!SvROK(sv))
return 0;
- sv = (SV*)SvRV(sv);
+ sv = SvRV(sv);
if (!SvOBJECT(sv))
return 0;
hvname = HvNAME_get(SvSTASH(sv));
if (SvIsCOW(tmpRef))
sv_force_normal_flags(tmpRef, 0);
if (SvREADONLY(tmpRef))
- Perl_croak(aTHX_ PL_no_modify);
+ Perl_croak(aTHX_ "%s", PL_no_modify);
if (SvOBJECT(tmpRef)) {
if (SvTYPE(tmpRef) != SVt_PVIO)
--PL_sv_objcount;
if (SvTYPE(tmpRef) != SVt_PVIO)
++PL_sv_objcount;
SvUPGRADE(tmpRef, SVt_PVMG);
- SvSTASH_set(tmpRef, (HV*)SvREFCNT_inc_simple(stash));
+ SvSTASH_set(tmpRef, MUTABLE_HV(SvREFCNT_inc_simple(stash)));
if (Gv_AMG(stash))
SvAMAGIC_on(sv);
assert(SvTYPE(sv) == SVt_PVGV);
SvFAKE_off(sv);
- gv_efullname3(temp, (GV *) sv, "*");
+ gv_efullname3(temp, MUTABLE_GV(sv), "*");
if (GvGP(sv)) {
- if(GvCVu((GV*)sv) && (stash = GvSTASH((GV*)sv)) && HvNAME_get(stash))
+ if(GvCVu((const GV *)sv) && (stash = GvSTASH(MUTABLE_GV(sv)))
+ && HvNAME_get(stash))
mro_method_changed_in(stash);
- gp_free((GV*)sv);
+ gp_free(MUTABLE_GV(sv));
}
if (GvSTASH(sv)) {
- sv_del_backref((SV*)GvSTASH(sv), sv);
+ sv_del_backref(MUTABLE_SV(GvSTASH(sv)), sv);
GvSTASH(sv) = NULL;
}
GvMULTI_off(sv);
{
PERL_ARGS_ASSERT_SV_VSETPVFN;
- sv_setpvn(sv, "", 0);
+ sv_setpvs(sv, "");
sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted);
}
}
if (args && patlen == 3 && pat[0] == '%' &&
pat[1] == '-' && pat[2] == 'p') {
- argsv = (SV*)va_arg(*args, void*);
+ argsv = MUTABLE_SV(va_arg(*args, void*));
sv_catsv(sv, argsv);
return;
}
STRLEN esignlen = 0;
const char *eptr = NULL;
+ const char *fmtstart;
STRLEN elen = 0;
SV *vecsv = NULL;
const U8 *vecstr = NULL;
if (q++ >= patend)
break;
+ fmtstart = q;
+
/*
We allow format specification elements in this order:
\d+\$ explicit format parameter index
precis = n;
has_precis = TRUE;
}
- argsv = (SV*)va_arg(*args, void*);
+ argsv = MUTABLE_SV(va_arg(*args, void*));
eptr = SvPV_const(argsv, elen);
if (DO_UTF8(argsv))
is_utf8 = TRUE;
*/
if (sv_derived_from(vecsv, "version")) {
char *version = savesvpv(vecsv);
- if ( hv_exists((HV*)SvRV(vecsv), "alpha", 5 ) ) {
+ if ( hv_exists(MUTABLE_HV(SvRV(vecsv)), "alpha", 5 ) ) {
Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
"vector argument not supported with alpha versions");
goto unknown;
case 'l': iv = va_arg(*args, long); break;
case 'V': iv = va_arg(*args, IV); break;
default: iv = va_arg(*args, int); break;
+ case 'q':
#ifdef HAS_QUAD
- case 'q': iv = va_arg(*args, Quad_t); break;
+ iv = va_arg(*args, Quad_t); break;
+#else
+ goto unknown;
#endif
}
}
case 'l': iv = (long)tiv; break;
case 'V':
default: iv = tiv; break;
+ case 'q':
#ifdef HAS_QUAD
- case 'q': iv = (Quad_t)tiv; break;
+ iv = (Quad_t)tiv; break;
+#else
+ goto unknown;
#endif
}
}
case 'l': uv = va_arg(*args, unsigned long); break;
case 'V': uv = va_arg(*args, UV); break;
default: uv = va_arg(*args, unsigned); break;
+ case 'q':
#ifdef HAS_QUAD
- case 'q': uv = va_arg(*args, Uquad_t); break;
+ uv = va_arg(*args, Uquad_t); break;
+#else
+ goto unknown;
#endif
}
}
case 'l': uv = (unsigned long)tuv; break;
case 'V':
default: uv = tuv; break;
+ case 'q':
#ifdef HAS_QUAD
- case 'q': uv = (Uquad_t)tuv; break;
+ uv = (Uquad_t)tuv; break;
+#else
+ goto unknown;
#endif
}
}
default: *(va_arg(*args, int*)) = i; break;
case 'l': *(va_arg(*args, long*)) = i; break;
case 'V': *(va_arg(*args, IV*)) = i; break;
+ case 'q':
#ifdef HAS_QUAD
- case 'q': *(va_arg(*args, Quad_t*)) = i; break;
+ *(va_arg(*args, Quad_t*)) = i; break;
+#else
+ goto unknown;
#endif
}
}
SV * const msg = sv_newmortal();
Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %sprintf: ",
(PL_op->op_type == OP_PRTF) ? "" : "s");
- if (c) {
- if (isPRINT(c))
- Perl_sv_catpvf(aTHX_ msg,
- "\"%%%c\"", c & 0xFF);
- else
- Perl_sv_catpvf(aTHX_ msg,
- "\"%%\\%03"UVof"\"",
- (UV)c & 0xFF);
- } else
+ if (fmtstart < patend) {
+ const char * const fmtend = q < patend ? q : patend;
+ const char * f;
+ sv_catpvs(msg, "\"%");
+ for (f = fmtstart; f < fmtend; f++) {
+ if (isPRINT(*f)) {
+ sv_catpvn(msg, f, 1);
+ } else {
+ Perl_sv_catpvf(aTHX_ msg,
+ "\\%03"UVof, (UV)*f & 0xFF);
+ }
+ }
+ sv_catpvs(msg, "\"");
+ } else {
sv_catpvs(msg, "end of string");
+ }
Perl_warner(aTHX_ packWARN(WARN_PRINTF), "%"SVf, SVfARG(msg)); /* yes, this is reentrant */
}
have = esignlen + zeros + elen;
if (have < zeros)
- Perl_croak_nocontext(PL_memory_wrap);
+ Perl_croak_nocontext("%s", PL_memory_wrap);
need = (have > width ? have : width);
gap = need - have;
if (need >= (((STRLEN)~0) - SvCUR(sv) - dotstrlen - 1))
- Perl_croak_nocontext(PL_memory_wrap);
+ Perl_croak_nocontext("%s", PL_memory_wrap);
SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1);
p = SvEND(sv);
if (esignlen && fill == '0') {
If this changes, please unmerge ss_dup. */
#define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t))
#define sv_dup_inc_NN(s,t) SvREFCNT_inc_NN(sv_dup(s,t))
-#define av_dup(s,t) (AV*)sv_dup((SV*)s,t)
-#define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t))
-#define hv_dup(s,t) (HV*)sv_dup((SV*)s,t)
-#define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t))
-#define cv_dup(s,t) (CV*)sv_dup((SV*)s,t)
-#define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t))
-#define io_dup(s,t) (IO*)sv_dup((SV*)s,t)
-#define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t))
-#define gv_dup(s,t) (GV*)sv_dup((SV*)s,t)
-#define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t))
+#define av_dup(s,t) MUTABLE_AV(sv_dup((const SV *)s,t))
+#define av_dup_inc(s,t) MUTABLE_AV(SvREFCNT_inc(sv_dup((const SV *)s,t)))
+#define hv_dup(s,t) MUTABLE_HV(sv_dup((const SV *)s,t))
+#define hv_dup_inc(s,t) MUTABLE_HV(SvREFCNT_inc(sv_dup((const SV *)s,t)))
+#define cv_dup(s,t) MUTABLE_CV(sv_dup((const SV *)s,t))
+#define cv_dup_inc(s,t) MUTABLE_CV(SvREFCNT_inc(sv_dup((const SV *)s,t)))
+#define io_dup(s,t) MUTABLE_IO(sv_dup((const SV *)s,t))
+#define io_dup_inc(s,t) MUTABLE_IO(SvREFCNT_inc(sv_dup((const SV *)s,t)))
+#define gv_dup(s,t) MUTABLE_GV(sv_dup((const SV *)s,t))
+#define gv_dup_inc(s,t) MUTABLE_GV(SvREFCNT_inc(sv_dup((const SV *)s,t)))
#define SAVEPV(p) ((p) ? savepv(p) : NULL)
#define SAVEPVN(p,n) ((p) ? savepvn(p,n) : NULL)
nmg->mg_flags = mg->mg_flags;
/* FIXME for plugins
if (mg->mg_type == PERL_MAGIC_qr) {
- nmg->mg_obj = (SV*)CALLREGDUPE((REGEXP*)mg->mg_obj, param);
+ nmg->mg_obj = MUTABLE_SV(CALLREGDUPE((REGEXP*)mg->mg_obj, param));
}
else
*/
if(mg->mg_type == PERL_MAGIC_backref) {
/* The backref AV has its reference count deliberately bumped by
1. */
- nmg->mg_obj = SvREFCNT_inc(av_dup_inc((AV*) mg->mg_obj, param));
+ nmg->mg_obj
+ = SvREFCNT_inc(av_dup_inc((const AV *) mg->mg_obj, param));
}
else {
nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED)
}
}
else if (mg->mg_len == HEf_SVKEY)
- nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param);
+ nmg->mg_ptr = (char*)sv_dup_inc((const SV *)mg->mg_ptr, param);
}
if ((mg->mg_flags & MGf_DUP) && mg->mg_virtual && mg->mg_virtual->svt_dup) {
CALL_FPTR(nmg->mg_virtual->svt_dup)(aTHX_ nmg, param);
if (SvROK(sstr)) {
SvRV_set(dstr, SvWEAKREF(sstr)
- ? sv_dup(SvRV(sstr), param)
- : sv_dup_inc(SvRV(sstr), param));
+ ? sv_dup(SvRV_const(sstr), param)
+ : sv_dup_inc(SvRV_const(sstr), param));
}
else if (SvPVX_const(sstr)) {
}
else {
/* Some other special case - random pointer */
- SvPV_set(dstr, SvPVX(sstr));
+ SvPV_set(dstr, (char *) SvPVX_const(sstr));
}
}
}
return NULL;
}
/* look for it in the table first */
- dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr);
+ dstr = MUTABLE_SV(ptr_table_fetch(PL_ptr_table, sstr));
if (dstr)
return dstr;
const HEK * const hvname = HvNAME_HEK(sstr);
if (hvname)
/** don't clone stashes if they already exist **/
- return (SV*)gv_stashpvn(HEK_KEY(hvname), HEK_LEN(hvname), 0);
+ return MUTABLE_SV(gv_stashpvn(HEK_KEY(hvname), HEK_LEN(hvname), 0));
}
}
break;
case SVt_PVGV:
- if (GvUNIQUE((GV*)sstr)) {
+ if (GvUNIQUE((const GV *)sstr)) {
NOOP; /* Do sharing here, and fall through */
}
case SVt_PVIO:
if (LvTYPE(dstr) == 't') /* for tie: unrefcnted fake (SV**) */
LvTARG(dstr) = dstr;
else if (LvTYPE(dstr) == 'T') /* for tie: fake HE */
- LvTARG(dstr) = (SV*)he_dup((HE*)LvTARG(dstr), 0, param);
+ LvTARG(dstr) = MUTABLE_SV(he_dup((HE*)LvTARG(dstr), 0, param));
else
LvTARG(dstr) = sv_dup_inc(LvTARG(dstr), param);
case SVt_PVGV:
IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(dstr));
break;
case SVt_PVAV:
- if (AvARRAY((AV*)sstr)) {
+ if (AvARRAY((const AV *)sstr)) {
SV **dst_ary, **src_ary;
- SSize_t items = AvFILLp((AV*)sstr) + 1;
+ SSize_t items = AvFILLp((const AV *)sstr) + 1;
- src_ary = AvARRAY((AV*)sstr);
- Newxz(dst_ary, AvMAX((AV*)sstr)+1, SV*);
+ src_ary = AvARRAY((const AV *)sstr);
+ Newxz(dst_ary, AvMAX((const AV *)sstr)+1, SV*);
ptr_table_store(PL_ptr_table, src_ary, dst_ary);
- AvARRAY((AV*)dstr) = dst_ary;
- AvALLOC((AV*)dstr) = dst_ary;
- if (AvREAL((AV*)sstr)) {
+ AvARRAY(MUTABLE_AV(dstr)) = dst_ary;
+ AvALLOC((const AV *)dstr) = dst_ary;
+ if (AvREAL((const AV *)sstr)) {
while (items-- > 0)
*dst_ary++ = sv_dup_inc(*src_ary++, param);
}
while (items-- > 0)
*dst_ary++ = sv_dup(*src_ary++, param);
}
- items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr);
+ items = AvMAX((const AV *)sstr) - AvFILLp((const AV *)sstr);
while (items-- > 0) {
*dst_ary++ = &PL_sv_undef;
}
}
else {
- AvARRAY((AV*)dstr) = NULL;
- AvALLOC((AV*)dstr) = (SV**)NULL;
+ AvARRAY(MUTABLE_AV(dstr)) = NULL;
+ AvALLOC((const AV *)dstr) = (SV**)NULL;
}
break;
case SVt_PVHV:
- if (HvARRAY((HV*)sstr)) {
+ if (HvARRAY((const HV *)sstr)) {
STRLEN i = 0;
const bool sharekeys = !!HvSHAREKEYS(sstr);
XPVHV * const dxhv = (XPVHV*)SvANY(dstr);
daux->xhv_eiter = saux->xhv_eiter
? he_dup(saux->xhv_eiter,
(bool)!!HvSHAREKEYS(sstr), param) : 0;
+ /* backref array needs refcnt=2; see sv_add_backref */
daux->xhv_backreferences =
saux->xhv_backreferences
- ? (AV*) SvREFCNT_inc(
- sv_dup((SV*)saux->xhv_backreferences, param))
+ ? MUTABLE_AV(SvREFCNT_inc(
+ sv_dup_inc((const SV *)saux->xhv_backreferences, param)))
: 0;
daux->xhv_mro_meta = saux->xhv_mro_meta
}
}
else
- HvARRAY((HV*)dstr) = NULL;
+ HvARRAY(MUTABLE_HV(dstr)) = NULL;
break;
case SVt_PVCV:
if (!(param->flags & CLONEf_COPY_STACKS)) {
if (CvCONST(dstr) && CvISXSUB(dstr)) {
CvXSUBANY(dstr).any_ptr = GvUNIQUE(CvGV(dstr)) ?
SvREFCNT_inc(CvXSUBANY(dstr).any_ptr) :
- sv_dup_inc((SV *)CvXSUBANY(dstr).any_ptr, param);
+ sv_dup_inc((const SV *)CvXSUBANY(dstr).any_ptr, param);
}
/* don't dup if copying back - CvGV isn't refcounted, so the
* duped GV may never be freed. A bit of a hack! DAPM */
ncx->blk_loop.oldcomppad);
} else {
ncx->blk_loop.oldcomppad
- = (PAD*)gv_dup((GV*)ncx->blk_loop.oldcomppad, param);
+ = (PAD*)gv_dup((const GV *)ncx->blk_loop.oldcomppad,
+ param);
}
break;
case CXt_FORMAT:
const I32 max = proto_perl->Isavestack_max;
I32 ix = proto_perl->Isavestack_ix;
ANY *nss;
- SV *sv;
- GV *gv;
- AV *av;
- HV *hv;
+ const SV *sv;
+ const GV *gv;
+ const AV *av;
+ const HV *hv;
void* ptr;
int intval;
long longval;
TOPINT(nss,ix) = type;
switch (type) {
case SAVEt_HELEM: /* hash element */
- sv = (SV*)POPPTR(ss,ix);
+ sv = (const SV *)POPPTR(ss,ix);
TOPPTR(nss,ix) = sv_dup_inc(sv, param);
/* fall through */
case SAVEt_ITEM: /* normal string */
case SAVEt_SV: /* scalar reference */
- sv = (SV*)POPPTR(ss,ix);
+ sv = (const SV *)POPPTR(ss,ix);
TOPPTR(nss,ix) = sv_dup_inc(sv, param);
/* fall through */
case SAVEt_FREESV:
case SAVEt_MORTALIZESV:
- sv = (SV*)POPPTR(ss,ix);
+ sv = (const SV *)POPPTR(ss,ix);
TOPPTR(nss,ix) = sv_dup_inc(sv, param);
break;
case SAVEt_SHARED_PVREF: /* char* in shared space */
break;
case SAVEt_GENERIC_SVREF: /* generic sv */
case SAVEt_SVREF: /* scalar reference */
- sv = (SV*)POPPTR(ss,ix);
+ sv = (const SV *)POPPTR(ss,ix);
TOPPTR(nss,ix) = sv_dup_inc(sv, param);
ptr = POPPTR(ss,ix);
TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */
break;
case SAVEt_HV: /* hash reference */
case SAVEt_AV: /* array reference */
- sv = (SV*) POPPTR(ss,ix);
+ sv = (const SV *) POPPTR(ss,ix);
TOPPTR(nss,ix) = sv_dup_inc(sv, param);
/* fall through */
case SAVEt_COMPPAD:
case SAVEt_NSTAB:
- sv = (SV*) POPPTR(ss,ix);
+ sv = (const SV *) POPPTR(ss,ix);
TOPPTR(nss,ix) = sv_dup(sv, param);
break;
case SAVEt_INT: /* int reference */
case SAVEt_SPTR: /* SV* reference */
ptr = POPPTR(ss,ix);
TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
- sv = (SV*)POPPTR(ss,ix);
+ sv = (const SV *)POPPTR(ss,ix);
TOPPTR(nss,ix) = sv_dup(sv, param);
break;
case SAVEt_VPTR: /* random* reference */
gp = (GP*)POPPTR(ss,ix);
TOPPTR(nss,ix) = gp = gp_dup(gp, param);
(void)GpREFCNT_inc(gp);
- gv = (GV*)POPPTR(ss,ix);
+ gv = (const GV *)POPPTR(ss,ix);
TOPPTR(nss,ix) = gv_dup_inc(gv, param);
break;
case SAVEt_FREEOP:
else
TOPPTR(nss,ix) = NULL;
break;
- case SAVEt_FREEPV:
- c = (char*)POPPTR(ss,ix);
- TOPPTR(nss,ix) = pv_dup_inc(c);
- break;
case SAVEt_DELETE:
- hv = (HV*)POPPTR(ss,ix);
+ hv = (const HV *)POPPTR(ss,ix);
TOPPTR(nss,ix) = hv_dup_inc(hv, param);
+ i = POPINT(ss,ix);
+ TOPINT(nss,ix) = i;
+ /* Fall through */
+ case SAVEt_FREEPV:
c = (char*)POPPTR(ss,ix);
TOPPTR(nss,ix) = pv_dup_inc(c);
- /* fall through */
+ break;
case SAVEt_STACK_POS: /* Position on Perl stack */
i = POPINT(ss,ix);
TOPINT(nss,ix) = i;
ix -= i;
break;
case SAVEt_AELEM: /* array element */
- sv = (SV*)POPPTR(ss,ix);
+ sv = (const SV *)POPPTR(ss,ix);
TOPPTR(nss,ix) = sv_dup_inc(sv, param);
i = POPINT(ss,ix);
TOPINT(nss,ix) = i;
- av = (AV*)POPPTR(ss,ix);
+ av = (const AV *)POPPTR(ss,ix);
TOPPTR(nss,ix) = av_dup_inc(av, param);
break;
case SAVEt_OP:
TOPPTR(nss,ix) = ptr;
break;
case SAVEt_HINTS:
- i = POPINT(ss,ix);
- TOPINT(nss,ix) = i;
ptr = POPPTR(ss,ix);
if (ptr) {
HINTS_REFCNT_LOCK;
HINTS_REFCNT_UNLOCK;
}
TOPPTR(nss,ix) = ptr;
+ i = POPINT(ss,ix);
+ TOPINT(nss,ix) = i;
if (i & HINT_LOCALIZE_HH) {
- hv = (HV*)POPPTR(ss,ix);
+ hv = (const HV *)POPPTR(ss,ix);
TOPPTR(nss,ix) = hv_dup_inc(hv, param);
}
break;
TOPLONG(nss,ix) = longval;
ptr = POPPTR(ss,ix);
TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
- sv = (SV*)POPPTR(ss,ix);
+ sv = (const SV *)POPPTR(ss,ix);
TOPPTR(nss,ix) = sv_dup_inc(sv, param);
break;
case SAVEt_BOOL:
TOPINT(nss,ix) = i;
i = POPINT(ss,ix);
TOPINT(nss,ix) = i;
- sv = (SV*)POPPTR(ss,ix);
+ sv = (const SV *)POPPTR(ss,ix);
TOPPTR(nss,ix) = sv_dup(sv, param);
break;
case SAVEt_RE_STATE:
static void
do_mark_cloneable_stash(pTHX_ SV *const sv)
{
- const HEK * const hvname = HvNAME_HEK((HV*)sv);
+ const HEK * const hvname = HvNAME_HEK((const HV *)sv);
if (hvname) {
- GV* const cloner = gv_fetchmethod_autoload((HV*)sv, "CLONE_SKIP", 0);
+ GV* const cloner = gv_fetchmethod_autoload(MUTABLE_HV(sv), "CLONE_SKIP", 0);
SvFLAGS(sv) |= SVphv_CLONEABLE; /* clone objects by default */
if (cloner && GvCV(cloner)) {
dSP;
PUSHMARK(SP);
mXPUSHs(newSVhek(hvname));
PUTBACK;
- call_sv((SV*)GvCV(cloner), G_SCALAR);
+ call_sv(MUTABLE_SV(GvCV(cloner)), G_SCALAR);
SPAGAIN;
status = POPu;
PUTBACK;
#endif
PL_encoding = sv_dup(proto_perl->Iencoding, param);
- sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */
- sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */
- sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */
+ sv_setpvs(PERL_DEBUG_PAD(0), ""); /* For regex debugging. */
+ sv_setpvs(PERL_DEBUG_PAD(1), ""); /* ext/re needs these */
+ sv_setpvs(PERL_DEBUG_PAD(2), ""); /* even without DEBUGGING. */
/* RE engine related */
PL_regex_pad = AvARRAY(PL_regex_padav);
/* shortcuts to various I/O objects */
+ PL_ofsgv = gv_dup(proto_perl->Iofsgv, param);
PL_stdingv = gv_dup(proto_perl->Istdingv, param);
PL_stderrgv = gv_dup(proto_perl->Istderrgv, param);
PL_defgv = gv_dup(proto_perl->Idefgv, param);
* orphaned
*/
for (i = 0; i<= proto_perl->Itmps_ix; i++) {
- SV * const nsv = (SV*)ptr_table_fetch(PL_ptr_table,
- proto_perl->Itmps_stack[i]);
+ SV * const nsv = MUTABLE_SV(ptr_table_fetch(PL_ptr_table,
+ proto_perl->Itmps_stack[i]));
if (nsv && !SvREFCNT(nsv)) {
EXTEND_MORTAL(1);
PL_tmps_stack[++PL_tmps_ix] = SvREFCNT_inc_simple(nsv);
PL_curpm = proto_perl->Icurpm; /* XXX No PMOP ref count */
PL_rs = sv_dup_inc(proto_perl->Irs, param);
PL_last_in_gv = gv_dup(proto_perl->Ilast_in_gv, param);
- PL_ofs_sv = sv_dup_inc(proto_perl->Iofs_sv, param);
PL_defoutgv = gv_dup_inc(proto_perl->Idefoutgv, param);
PL_chopset = proto_perl->Ichopset; /* XXX never deallocated */
PL_toptarget = sv_dup_inc(proto_perl->Itoptarget, param);
identified by sv_dup() above.
*/
while(av_len(param->stashes) != -1) {
- HV* const stash = (HV*) av_shift(param->stashes);
+ HV* const stash = MUTABLE_HV(av_shift(param->stashes));
GV* const cloner = gv_fetchmethod_autoload(stash, "CLONE", 0);
if (cloner && GvCV(cloner)) {
dSP;
PUSHMARK(SP);
mXPUSHs(newSVhek(HvNAME_HEK(stash)));
PUTBACK;
- call_sv((SV*)GvCV(cloner), G_DISCARD);
+ call_sv(MUTABLE_SV(GvCV(cloner)), G_DISCARD);
FREETMPS;
LEAVE;
}
* If so, return a mortal copy of the key. */
STATIC SV*
-S_find_hash_subscript(pTHX_ HV *hv, SV* val)
+S_find_hash_subscript(pTHX_ const HV *const hv, const SV *const val)
{
dVAR;
register HE **array;
* If so, return the index, otherwise return -1. */
STATIC I32
-S_find_array_subscript(pTHX_ AV *av, SV* val)
+S_find_array_subscript(pTHX_ const AV *const av, const SV *const val)
{
dVAR;
#define FUV_SUBSCRIPT_WITHIN 4 /* "within @foo" */
STATIC SV*
-S_varname(pTHX_ GV *gv, const char gvtype, PADOFFSET targ,
- SV* keyname, I32 aindex, int subscript_type)
+S_varname(pTHX_ const GV *const gv, const char gvtype, PADOFFSET targ,
+ const SV *const keyname, I32 aindex, int subscript_type)
{
SV * const name = sv_newmortal();
if (!cv || !CvPADLIST(cv))
return NULL;
- av = (AV*)(*av_fetch(CvPADLIST(cv), 0, FALSE));
+ av = MUTABLE_AV((*av_fetch(CvPADLIST(cv), 0, FALSE)));
sv = *av_fetch(av, targ, FALSE);
sv_setpvn(name, SvPV_nolen_const(sv), SvCUR(sv));
}
*/
STATIC SV *
-S_find_uninit_var(pTHX_ OP* obase, SV* uninit_sv, bool match)
+S_find_uninit_var(pTHX_ const OP *const obase, const SV *const uninit_sv,
+ bool match)
{
dVAR;
SV *sv;
- AV *av;
- GV *gv;
- OP *o, *o2, *kid;
+ const GV *gv;
+ const OP *o, *o2, *kid;
if (!obase || (match && (!uninit_sv || uninit_sv == &PL_sv_undef ||
uninit_sv == &PL_sv_placeholder)))
gv = cGVOPx_gv(cUNOPx(obase)->op_first);
if (!gv)
break;
- sv = hash ? (SV*)GvHV(gv): (SV*)GvAV(gv);
+ sv = hash ? MUTABLE_SV(GvHV(gv)): MUTABLE_SV(GvAV(gv));
}
else /* @{expr}, %{expr} */
return find_uninit_var(cUNOPx(obase)->op_first,
/* attempt to find a match within the aggregate */
if (hash) {
- keysv = find_hash_subscript((HV*)sv, uninit_sv);
+ keysv = find_hash_subscript((const HV*)sv, uninit_sv);
if (keysv)
subscript_type = FUV_SUBSCRIPT_HASH;
}
else {
- index = find_array_subscript((AV*)sv, uninit_sv);
+ index = find_array_subscript((const AV *)sv, uninit_sv);
if (index >= 0)
subscript_type = FUV_SUBSCRIPT_ARRAY;
}
if (obase->op_flags & OPf_SPECIAL) { /* lexical array */
if (match) {
SV **svp;
- av = (AV*)PAD_SV(obase->op_targ);
+ AV *av = MUTABLE_AV(PAD_SV(obase->op_targ));
if (!av || SvRMAGICAL(av))
break;
svp = av_fetch(av, (I32)obase->op_private, FALSE);
break;
if (match) {
SV **svp;
- av = GvAV(gv);
+ AV *const av = GvAV(gv);
if (!av || SvRMAGICAL(av))
break;
svp = av_fetch(av, (I32)obase->op_private, FALSE);
gv = cGVOPx_gv(cUNOPo->op_first);
if (!gv)
break;
- sv = o->op_type == OP_RV2HV ? (SV*)GvHV(gv) : (SV*)GvAV(gv);
+ sv = o->op_type
+ == OP_RV2HV ? MUTABLE_SV(GvHV(gv)) : MUTABLE_SV(GvAV(gv));
}
if (!sv)
break;
if (SvMAGICAL(sv))
break;
if (obase->op_type == OP_HELEM) {
- HE* he = hv_fetch_ent((HV*)sv, cSVOPx_sv(kid), 0, 0);
+ HE* he = hv_fetch_ent(MUTABLE_HV(sv), cSVOPx_sv(kid), 0, 0);
if (!he || HeVAL(he) != uninit_sv)
break;
}
else {
- SV * const * const svp = av_fetch((AV*)sv, SvIV(cSVOPx_sv(kid)), FALSE);
+ SV * const * const svp = av_fetch(MUTABLE_AV(sv), SvIV(cSVOPx_sv(kid)), FALSE);
if (!svp || *svp != uninit_sv)
break;
}
/* index is an expression;
* attempt to find a match within the aggregate */
if (obase->op_type == OP_HELEM) {
- SV * const keysv = find_hash_subscript((HV*)sv, uninit_sv);
+ SV * const keysv = find_hash_subscript((const HV*)sv, uninit_sv);
if (keysv)
return varname(gv, '%', o->op_targ,
keysv, 0, FUV_SUBSCRIPT_HASH);
}
else {
- const I32 index = find_array_subscript((AV*)sv, uninit_sv);
+ const I32 index
+ = find_array_subscript((const AV *)sv, uninit_sv);
if (index >= 0)
return varname(gv, '@', o->op_targ,
NULL, index, FUV_SUBSCRIPT_ARRAY);
: DEFSV))
{
sv = sv_newmortal();
- sv_setpvn(sv, "$_", 2);
+ sv_setpvs(sv, "$_");
return sv;
}
}
*/
void
-Perl_report_uninit(pTHX_ SV* uninit_sv)
+Perl_report_uninit(pTHX_ const SV *uninit_sv)
{
dVAR;
if (PL_op) {
https://perl5.git.perl.org / perl5.git / blobdiff