X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/08e447406761619260203dbbef9cf10b6efa533c..efcbbafbf10077e558f8e3e69fc9ffdd50d0924f:/sv.c diff --git a/sv.c b/sv.c index dc0ec58..e800bd7 100644 --- a/sv.c +++ b/sv.c @@ -154,11 +154,14 @@ Public API: */ void -Perl_offer_nice_chunk(pTHX_ void *chunk, U32 chunk_size) +Perl_offer_nice_chunk(pTHX_ void *const chunk, const U32 chunk_size) { dVAR; void *new_chunk; U32 new_chunk_size; + + PERL_ARGS_ASSERT_OFFER_NICE_CHUNK; + new_chunk = (void *)(chunk); new_chunk_size = (chunk_size); if (new_chunk_size > PL_nice_chunk_size) { @@ -291,6 +294,9 @@ STATIC void S_del_sv(pTHX_ SV *p) { dVAR; + + PERL_ARGS_ASSERT_DEL_SV; + if (DEBUG_D_TEST) { SV* sva; bool ok = 0; @@ -332,13 +338,15 @@ and split it into a list of free SVs. */ void -Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) +Perl_sv_add_arena(pTHX_ char *const ptr, const U32 size, const U32 flags) { dVAR; SV* const sva = (SV*)ptr; register SV* sv; register SV* svend; + PERL_ARGS_ASSERT_SV_ADD_ARENA; + /* The first SV in an arena isn't an SV. */ SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ @@ -370,12 +378,14 @@ Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) * whose flags field matches the flags/mask args. */ STATIC I32 -S_visit(pTHX_ SVFUNC_t f, U32 flags, U32 mask) +S_visit(pTHX_ SVFUNC_t f, const U32 flags, const U32 mask) { dVAR; SV* sva; I32 visited = 0; + PERL_ARGS_ASSERT_VISIT; + for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { register const SV * const svend = &sva[SvREFCNT(sva)]; register SV* sv; @@ -397,7 +407,7 @@ S_visit(pTHX_ SVFUNC_t f, U32 flags, U32 mask) /* called by sv_report_used() for each live SV */ static void -do_report_used(pTHX_ SV *sv) +do_report_used(pTHX_ SV *const sv) { if (SvTYPE(sv) != SVTYPEMASK) { PerlIO_printf(Perl_debug_log, "****\n"); @@ -427,7 +437,7 @@ Perl_sv_report_used(pTHX) /* called by sv_clean_objs() for each live SV */ static void -do_clean_objs(pTHX_ SV *ref) +do_clean_objs(pTHX_ SV *const ref) { dVAR; assert (SvROK(ref)); @@ -454,7 +464,7 @@ do_clean_objs(pTHX_ SV *ref) #ifndef DISABLE_DESTRUCTOR_KLUDGE static void -do_clean_named_objs(pTHX_ SV *sv) +do_clean_named_objs(pTHX_ SV *const sv) { dVAR; assert(SvTYPE(sv) == SVt_PVGV); @@ -503,7 +513,7 @@ Perl_sv_clean_objs(pTHX) /* called by sv_clean_all() for each live SV */ static void -do_clean_all(pTHX_ SV *sv) +do_clean_all(pTHX_ SV *const sv) { dVAR; DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); @@ -663,7 +673,7 @@ Perl_sv_free_arenas(pTHX) TBD: export properly for hv.c: S_more_he(). */ void* -Perl_get_arena(pTHX_ size_t arena_size, U32 misc) +Perl_get_arena(pTHX_ const size_t arena_size, const U32 misc) { dVAR; struct arena_desc* adesc; @@ -953,8 +963,9 @@ static const struct body_details bodies_by_type[] = { SVt_PVFM, TRUE, NONV, NOARENA, FIT_ARENA(20, sizeof(xpvfm_allocated)) }, /* XPVIO is 84 bytes, fits 48x */ - { sizeof(XPVIO), sizeof(XPVIO), 0, SVt_PVIO, TRUE, HADNV, - HASARENA, FIT_ARENA(24, sizeof(XPVIO)) }, + { sizeof(xpvio_allocated), sizeof(xpvio_allocated), + + relative_STRUCT_OFFSET(xpvio_allocated, XPVIO, xpv_cur), + SVt_PVIO, TRUE, NONV, HASARENA, FIT_ARENA(24, sizeof(xpvio_allocated)) }, }; #define new_body_type(sv_type) \ @@ -1026,7 +1037,7 @@ static const struct body_details bodies_by_type[] = { my_safecalloc((details)->body_size + (details)->offset) STATIC void * -S_more_bodies (pTHX_ svtype sv_type) +S_more_bodies (pTHX_ const svtype sv_type) { dVAR; void ** const root = &PL_body_roots[sv_type]; @@ -1034,6 +1045,7 @@ S_more_bodies (pTHX_ svtype sv_type) const size_t body_size = bdp->body_size; char *start; const char *end; + const size_t arena_size = Perl_malloc_good_size(bdp->arena_size); #if defined(DEBUGGING) && !defined(PERL_GLOBAL_STRUCT_PRIVATE) static bool done_sanity_check; @@ -1051,20 +1063,28 @@ S_more_bodies (pTHX_ svtype sv_type) assert(bdp->arena_size); - start = (char*) Perl_get_arena(aTHX_ bdp->arena_size, sv_type); + start = (char*) Perl_get_arena(aTHX_ arena_size, sv_type); - end = start + bdp->arena_size - body_size; + end = start + arena_size - 2 * body_size; /* computed count doesnt reflect the 1st slot reservation */ +#if defined(MYMALLOC) || defined(HAS_MALLOC_GOOD_SIZE) + DEBUG_m(PerlIO_printf(Perl_debug_log, + "arena %p end %p arena-size %d (from %d) type %d " + "size %d ct %d\n", + (void*)start, (void*)end, (int)arena_size, + (int)bdp->arena_size, sv_type, (int)body_size, + (int)arena_size / (int)body_size)); +#else DEBUG_m(PerlIO_printf(Perl_debug_log, "arena %p end %p arena-size %d type %d size %d ct %d\n", (void*)start, (void*)end, (int)bdp->arena_size, sv_type, (int)body_size, (int)bdp->arena_size / (int)body_size)); - +#endif *root = (void *)start; - while (start < end) { + while (start <= end) { char * const next = start + body_size; *(void**) start = (void *)next; start = next; @@ -1089,7 +1109,7 @@ S_more_bodies (pTHX_ svtype sv_type) #ifndef PURIFY STATIC void * -S_new_body(pTHX_ svtype sv_type) +S_new_body(pTHX_ const svtype sv_type) { dVAR; void *xpv; @@ -1113,7 +1133,7 @@ You generally want to use the C macro wrapper. See also C. */ void -Perl_sv_upgrade(pTHX_ register SV *sv, svtype new_type) +Perl_sv_upgrade(pTHX_ register SV *const sv, svtype new_type) { dVAR; void* old_body; @@ -1124,6 +1144,8 @@ Perl_sv_upgrade(pTHX_ register SV *sv, svtype new_type) = bodies_by_type + old_type; SV *referant = NULL; + PERL_ARGS_ASSERT_SV_UPGRADE; + if (new_type != SVt_PV && SvIsCOW(sv)) { sv_force_normal_flags(sv, 0); } @@ -1397,11 +1419,14 @@ wrapper instead. */ int -Perl_sv_backoff(pTHX_ register SV *sv) +Perl_sv_backoff(pTHX_ register SV *const sv) { STRLEN delta; const char * const s = SvPVX_const(sv); + + PERL_ARGS_ASSERT_SV_BACKOFF; PERL_UNUSED_CONTEXT; + assert(SvOOK(sv)); assert(SvTYPE(sv) != SVt_PVHV); assert(SvTYPE(sv) != SVt_PVAV); @@ -1426,10 +1451,12 @@ Use the C wrapper instead. */ char * -Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) +Perl_sv_grow(pTHX_ register SV *const sv, register STRLEN newlen) { register char *s; + PERL_ARGS_ASSERT_SV_GROW; + if (PL_madskills && newlen >= 0x100000) { PerlIO_printf(Perl_debug_log, "Allocation too large: %"UVxf"\n", (UV)newlen); @@ -1461,15 +1488,10 @@ Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) s = SvPVX_mutable(sv); if (newlen > SvLEN(sv)) { /* need more room? */ +#ifndef MYMALLOC newlen = PERL_STRLEN_ROUNDUP(newlen); - if (SvLEN(sv) && s) { -#ifdef MYMALLOC - const STRLEN l = malloced_size((void*)SvPVX_const(sv)); - if (newlen <= l) { - SvLEN_set(sv, l); - return s; - } else #endif + if (SvLEN(sv) && s) { s = (char*)saferealloc(s, newlen); } else { @@ -1479,7 +1501,14 @@ Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) } } SvPV_set(sv, s); +#ifdef Perl_safesysmalloc_size + /* Do this here, do it once, do it right, and then we will never get + called back into sv_grow() unless there really is some growing + needed. */ + SvLEN_set(sv, Perl_safesysmalloc_size(s)); +#else SvLEN_set(sv, newlen); +#endif } return s; } @@ -1494,9 +1523,12 @@ Does not handle 'set' magic. See also C. */ void -Perl_sv_setiv(pTHX_ register SV *sv, IV i) +Perl_sv_setiv(pTHX_ register SV *const sv, const IV i) { dVAR; + + PERL_ARGS_ASSERT_SV_SETIV; + SV_CHECK_THINKFIRST_COW_DROP(sv); switch (SvTYPE(sv)) { case SVt_NULL: @@ -1531,8 +1563,10 @@ Like C, but also handles 'set' magic. */ void -Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) +Perl_sv_setiv_mg(pTHX_ register SV *const sv, const IV i) { + PERL_ARGS_ASSERT_SV_SETIV_MG; + sv_setiv(sv,i); SvSETMAGIC(sv); } @@ -1547,8 +1581,10 @@ Does not handle 'set' magic. See also C. */ void -Perl_sv_setuv(pTHX_ register SV *sv, UV u) +Perl_sv_setuv(pTHX_ register SV *const sv, const UV u) { + PERL_ARGS_ASSERT_SV_SETUV; + /* With these two if statements: u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 @@ -1575,8 +1611,10 @@ Like C, but also handles 'set' magic. */ void -Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) +Perl_sv_setuv_mg(pTHX_ register SV *const sv, const UV u) { + PERL_ARGS_ASSERT_SV_SETUV_MG; + sv_setuv(sv,u); SvSETMAGIC(sv); } @@ -1591,9 +1629,12 @@ Does not handle 'set' magic. See also C. */ void -Perl_sv_setnv(pTHX_ register SV *sv, NV num) +Perl_sv_setnv(pTHX_ register SV *const sv, const NV num) { dVAR; + + PERL_ARGS_ASSERT_SV_SETNV; + SV_CHECK_THINKFIRST_COW_DROP(sv); switch (SvTYPE(sv)) { case SVt_NULL: @@ -1629,8 +1670,10 @@ Like C, but also handles 'set' magic. */ void -Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) +Perl_sv_setnv_mg(pTHX_ register SV *const sv, const NV num) { + PERL_ARGS_ASSERT_SV_SETNV_MG; + sv_setnv(sv,num); SvSETMAGIC(sv); } @@ -1640,13 +1683,15 @@ Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) */ STATIC void -S_not_a_number(pTHX_ SV *sv) +S_not_a_number(pTHX_ SV *const sv) { dVAR; SV *dsv; char tmpbuf[64]; const char *pv; + PERL_ARGS_ASSERT_NOT_A_NUMBER; + if (DO_UTF8(sv)) { dsv = newSVpvs_flags("", SVs_TEMP); pv = sv_uni_display(dsv, sv, 10, 0); @@ -1721,11 +1766,13 @@ non-numeric warning), even if your atof() doesn't grok them. */ I32 -Perl_looks_like_number(pTHX_ SV *sv) +Perl_looks_like_number(pTHX_ SV *const sv) { register const char *sbegin; STRLEN len; + PERL_ARGS_ASSERT_LOOKS_LIKE_NUMBER; + if (SvPOK(sv)) { sbegin = SvPVX_const(sv); len = SvCUR(sv); @@ -1743,6 +1790,8 @@ S_glob_2number(pTHX_ GV * const gv) const U32 wasfake = SvFLAGS(gv) & SVf_FAKE; SV *const buffer = sv_newmortal(); + PERL_ARGS_ASSERT_GLOB_2NUMBER; + /* FAKE globs can get coerced, so need to turn this off temporarily if it is on. */ SvFAKE_off(gv); @@ -1764,6 +1813,8 @@ S_glob_2pv(pTHX_ GV * const gv, STRLEN * const len) const U32 wasfake = SvFLAGS(gv) & SVf_FAKE; SV *const buffer = sv_newmortal(); + PERL_ARGS_ASSERT_GLOB_2PV; + /* FAKE globs can get coerced, so need to turn this off temporarily if it is on. */ SvFAKE_off(gv); @@ -1862,10 +1913,16 @@ S_glob_2pv(pTHX_ GV * const gv, STRLEN * const len) /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ STATIC int -S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) +S_sv_2iuv_non_preserve(pTHX_ register SV *const sv +# ifdef DEBUGGING + , I32 numtype +# endif + ) { dVAR; - PERL_UNUSED_ARG(numtype); /* Used only under DEBUGGING? */ + + PERL_ARGS_ASSERT_SV_2IUV_NON_PRESERVE; + DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_2iuv_non '%s', IV=0x%"UVxf" NV=%"NVgf" inttype=%"UVXf"\n", SvPVX_const(sv), SvIVX(sv), SvNVX(sv), (UV)numtype)); if (SvNVX(sv) < (NV)IV_MIN) { (void)SvIOKp_on(sv); @@ -1911,8 +1968,12 @@ S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) #endif /* !NV_PRESERVES_UV*/ STATIC bool -S_sv_2iuv_common(pTHX_ SV *sv) { +S_sv_2iuv_common(pTHX_ SV *const sv) +{ dVAR; + + PERL_ARGS_ASSERT_SV_2IUV_COMMON; + if (SvNOKp(sv)) { /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv * without also getting a cached IV/UV from it at the same time @@ -1946,7 +2007,11 @@ S_sv_2iuv_common(pTHX_ SV *sv) { we're outside the range of NV integer precision */ #endif ) { - SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ + if (SvNOK(sv)) + SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ + else { + /* scalar has trailing garbage, eg "42a" */ + } DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" iv(%"NVgf" => %"IVdf") (precise)\n", PTR2UV(sv), @@ -1985,6 +2050,7 @@ S_sv_2iuv_common(pTHX_ SV *sv) { came from a (by definition imprecise) NV operation, and we're outside the range of NV integer precision */ #endif + && SvNOK(sv) ) SvIOK_on(sv); SvIsUV_on(sv); @@ -2138,10 +2204,20 @@ S_sv_2iuv_common(pTHX_ SV *sv) { 1 1 already read UV. so there's no point in sv_2iuv_non_preserve() attempting to use atol, strtol, strtoul etc. */ +# ifdef DEBUGGING sv_2iuv_non_preserve (sv, numtype); +# else + sv_2iuv_non_preserve (sv); +# endif } } #endif /* NV_PRESERVES_UV */ + /* It might be more code efficient to go through the entire logic above + and conditionally set with SvIOKp_on() rather than SvIOK(), but it + gets complex and potentially buggy, so more programmer efficient + to do it this way, by turning off the public flags: */ + if (!numtype) + SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK); } } else { @@ -2172,7 +2248,7 @@ Normally used via the C and C macros. */ IV -Perl_sv_2iv_flags(pTHX_ register SV *sv, I32 flags) +Perl_sv_2iv_flags(pTHX_ register SV *const sv, const I32 flags) { dVAR; if (!sv) @@ -2256,7 +2332,7 @@ Normally used via the C and C macros. */ UV -Perl_sv_2uv_flags(pTHX_ register SV *sv, I32 flags) +Perl_sv_2uv_flags(pTHX_ register SV *const sv, const I32 flags) { dVAR; if (!sv) @@ -2333,7 +2409,7 @@ macros. */ NV -Perl_sv_2nv(pTHX_ register SV *sv) +Perl_sv_2nv(pTHX_ register SV *const sv) { dVAR; if (!sv) @@ -2410,11 +2486,15 @@ Perl_sv_2nv(pTHX_ register SV *sv) if (SvIOKp(sv)) { SvNV_set(sv, SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv)); #ifdef NV_PRESERVES_UV - SvNOK_on(sv); + if (SvIOK(sv)) + SvNOK_on(sv); + else + SvNOKp_on(sv); #else /* Only set the public NV OK flag if this NV preserves the IV */ /* Check it's not 0xFFFFFFFFFFFFFFFF */ - if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) + if (SvIOK(sv) && + SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) : (SvIVX(sv) == I_V(SvNVX(sv)))) SvNOK_on(sv); else @@ -2433,7 +2513,10 @@ Perl_sv_2nv(pTHX_ register SV *sv) SvNV_set(sv, (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value); } else SvNV_set(sv, Atof(SvPVX_const(sv))); - SvNOK_on(sv); + if (numtype) + SvNOK_on(sv); + else + SvNOKp_on(sv); #else SvNV_set(sv, Atof(SvPVX_const(sv))); /* Only set the public NV OK flag if this NV preserves the value in @@ -2500,6 +2583,12 @@ Perl_sv_2nv(pTHX_ register SV *sv) } } } + /* It might be more code efficient to go through the entire logic above + and conditionally set with SvNOKp_on() rather than SvNOK(), but it + gets complex and potentially buggy, so more programmer efficient + to do it this way, by turning off the public flags: */ + if (!numtype) + SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK); #endif /* NV_PRESERVES_UV */ } else { @@ -2545,8 +2634,10 @@ access this function. */ SV * -Perl_sv_2num(pTHX_ register SV *sv) +Perl_sv_2num(pTHX_ register SV *const sv) { + PERL_ARGS_ASSERT_SV_2NUM; + if (!SvROK(sv)) return sv; if (SvAMAGIC(sv)) { @@ -2565,12 +2656,14 @@ Perl_sv_2num(pTHX_ register SV *sv) */ static char * -S_uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) +S_uiv_2buf(char *const buf, const IV iv, UV uv, const int is_uv, char **const peob) { char *ptr = buf + TYPE_CHARS(UV); char * const ebuf = ptr; int sign; + PERL_ARGS_ASSERT_UIV_2BUF; + if (is_uv) sign = 0; else if (iv >= 0) { @@ -2602,7 +2695,7 @@ usually end up here too. */ char * -Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) +Perl_sv_2pv_flags(pTHX_ register SV *const sv, STRLEN *const lp, const I32 flags) { dVAR; register char *s; @@ -2702,21 +2795,25 @@ Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) len = 7; retval = buffer = savepvn("NULLREF", len); } else if (SvTYPE(referent) == SVt_REGEXP) { - char *str = NULL; - I32 haseval = 0; - U32 flags = 0; - struct magic temp; - /* FIXME - get rid of this cast away of const, or work out - how to do it better. */ - temp.mg_obj = (SV *)referent; - assert(temp.mg_obj); - (str) = CALLREG_AS_STR(&temp,lp,&flags,&haseval); - if (flags & 1) - SvUTF8_on(sv); - else - SvUTF8_off(sv); - PL_reginterp_cnt += haseval; - return str; + const REGEXP * const re = (REGEXP *)referent; + I32 seen_evals = 0; + + assert(re); + + /* If the regex is UTF-8 we want the containing scalar to + have an UTF-8 flag too */ + if (RX_UTF8(re)) + SvUTF8_on(sv); + else + SvUTF8_off(sv); + + if ((seen_evals = RX_SEEN_EVALS(re))) + PL_reginterp_cnt += seen_evals; + + if (lp) + *lp = RX_WRAPLEN(re); + + return RX_WRAPPED(re); } else { const char *const typestr = sv_reftype(referent, 0); const STRLEN typelen = strlen(typestr); @@ -2782,10 +2879,12 @@ Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) } } if (SvREADONLY(sv) && !SvOK(sv)) { - if (ckWARN(WARN_UNINITIALIZED)) - report_uninit(sv); if (lp) *lp = 0; + if (flags & SV_UNDEF_RETURNS_NULL) + return NULL; + if (ckWARN(WARN_UNINITIALIZED)) + report_uninit(sv); return (char *)""; } } @@ -2839,10 +2938,12 @@ Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) if (isGV_with_GP(sv)) return glob_2pv((GV *)sv, lp); - if (!PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP) && ckWARN(WARN_UNINITIALIZED)) - report_uninit(sv); if (lp) *lp = 0; + if (flags & SV_UNDEF_RETURNS_NULL) + return NULL; + if (!PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP) && ckWARN(WARN_UNINITIALIZED)) + report_uninit(sv); if (SvTYPE(sv) < SVt_PV) /* Typically the caller expects that sv_any is not NULL now. */ sv_upgrade(sv, SVt_PV); @@ -2879,10 +2980,13 @@ would lose the UTF-8'ness of the PV. */ void -Perl_sv_copypv(pTHX_ SV *dsv, register SV *ssv) +Perl_sv_copypv(pTHX_ SV *const dsv, register SV *const ssv) { STRLEN len; const char * const s = SvPV_const(ssv,len); + + PERL_ARGS_ASSERT_SV_COPYPV; + sv_setpvn(dsv,s,len); if (SvUTF8(ssv)) SvUTF8_on(dsv); @@ -2903,8 +3007,10 @@ Usually accessed via the C macro. */ char * -Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) +Perl_sv_2pvbyte(pTHX_ register SV *const sv, STRLEN *const lp) { + PERL_ARGS_ASSERT_SV_2PVBYTE; + sv_utf8_downgrade(sv,0); return lp ? SvPV(sv,*lp) : SvPV_nolen(sv); } @@ -2921,8 +3027,10 @@ Usually accessed via the C macro. */ char * -Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) +Perl_sv_2pvutf8(pTHX_ register SV *const sv, STRLEN *const lp) { + PERL_ARGS_ASSERT_SV_2PVUTF8; + sv_utf8_upgrade(sv); return lp ? SvPV(sv,*lp) : SvPV_nolen(sv); } @@ -2938,9 +3046,12 @@ sv_true() or its macro equivalent. */ bool -Perl_sv_2bool(pTHX_ register SV *sv) +Perl_sv_2bool(pTHX_ register SV *const sv) { dVAR; + + PERL_ARGS_ASSERT_SV_2BOOL; + SvGETMAGIC(sv); if (!SvOK(sv)) @@ -3006,9 +3117,12 @@ use the Encode extension for that. */ STRLEN -Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) +Perl_sv_utf8_upgrade_flags(pTHX_ register SV *const sv, const I32 flags) { dVAR; + + PERL_ARGS_ASSERT_SV_UTF8_UPGRADE_FLAGS; + if (sv == &PL_sv_undef) return 0; if (!SvPOK(sv)) { @@ -3076,9 +3190,12 @@ use the Encode extension for that. */ bool -Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) +Perl_sv_utf8_downgrade(pTHX_ register SV *const sv, const bool fail_ok) { dVAR; + + PERL_ARGS_ASSERT_SV_UTF8_DOWNGRADE; + if (SvPOKp(sv) && SvUTF8(sv)) { if (SvCUR(sv)) { U8 *s; @@ -3116,8 +3233,10 @@ flag off so that it looks like octets again. */ void -Perl_sv_utf8_encode(pTHX_ register SV *sv) +Perl_sv_utf8_encode(pTHX_ register SV *const sv) { + PERL_ARGS_ASSERT_SV_UTF8_ENCODE; + if (SvIsCOW(sv)) { sv_force_normal_flags(sv, 0); } @@ -3141,8 +3260,10 @@ Scans PV for validity and returns false if the PV is invalid UTF-8. */ bool -Perl_sv_utf8_decode(pTHX_ register SV *sv) +Perl_sv_utf8_decode(pTHX_ register SV *const sv) { + PERL_ARGS_ASSERT_SV_UTF8_DECODE; + if (SvPOKp(sv)) { const U8 *c; const U8 *e; @@ -3207,10 +3328,12 @@ copy-ish functions and macros use this underneath. */ static void -S_glob_assign_glob(pTHX_ SV *dstr, SV *sstr, const int dtype) +S_glob_assign_glob(pTHX_ SV *const dstr, SV *const sstr, const int dtype) { I32 mro_changes = 0; /* 1 = method, 2 = isa */ + PERL_ARGS_ASSERT_GLOB_ASSIGN_GLOB; + if (dtype != SVt_PVGV) { const char * const name = GvNAME(sstr); const STRLEN len = GvNAMELEN(sstr); @@ -3282,7 +3405,8 @@ S_glob_assign_glob(pTHX_ SV *dstr, SV *sstr, const int dtype) } static void -S_glob_assign_ref(pTHX_ SV *dstr, SV *sstr) { +S_glob_assign_ref(pTHX_ SV *const dstr, SV *const sstr) +{ SV * const sref = SvREFCNT_inc(SvRV(sstr)); SV *dref = NULL; const int intro = GvINTRO(dstr); @@ -3290,6 +3414,7 @@ S_glob_assign_ref(pTHX_ SV *dstr, SV *sstr) { U8 import_flag = 0; const U32 stype = SvTYPE(sref); + PERL_ARGS_ASSERT_GLOB_ASSIGN_REF; #ifdef GV_UNIQUE_CHECK if (GvUNIQUE((GV*)dstr)) { @@ -3393,13 +3518,15 @@ S_glob_assign_ref(pTHX_ SV *dstr, SV *sstr) { } void -Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) +Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV* sstr, const I32 flags) { dVAR; register U32 sflags; register int dtype; register svtype stype; + PERL_ARGS_ASSERT_SV_SETSV_FLAGS; + if (sstr == dstr) return; @@ -3499,6 +3626,7 @@ Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) } /* Fall through */ #endif + case SVt_REGEXP: case SVt_PV: if (dtype < SVt_PV) sv_upgrade(dstr, SVt_PV); @@ -3827,8 +3955,10 @@ Like C, but also handles 'set' magic. */ void -Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) +Perl_sv_setsv_mg(pTHX_ SV *const dstr, register SV *const sstr) { + PERL_ARGS_ASSERT_SV_SETSV_MG; + sv_setsv(dstr,sstr); SvSETMAGIC(dstr); } @@ -3841,6 +3971,8 @@ Perl_sv_setsv_cow(pTHX_ SV *dstr, SV *sstr) STRLEN len = SvLEN(sstr); register char *new_pv; + PERL_ARGS_ASSERT_SV_SETSV_COW; + if (DEBUG_C_TEST) { PerlIO_printf(Perl_debug_log, "Fast copy on write: %p -> %p\n", (void*)sstr, (void*)dstr); @@ -3913,11 +4045,13 @@ undefined. Does not handle 'set' magic. See C. */ void -Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) +Perl_sv_setpvn(pTHX_ register SV *const sv, register const char *const ptr, register const STRLEN len) { dVAR; register char *dptr; + PERL_ARGS_ASSERT_SV_SETPVN; + SV_CHECK_THINKFIRST_COW_DROP(sv); if (!ptr) { (void)SvOK_off(sv); @@ -3948,8 +4082,10 @@ Like C, but also handles 'set' magic. */ void -Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) +Perl_sv_setpvn_mg(pTHX_ register SV *const sv, register const char *const ptr, register const STRLEN len) { + PERL_ARGS_ASSERT_SV_SETPVN_MG; + sv_setpvn(sv,ptr,len); SvSETMAGIC(sv); } @@ -3964,11 +4100,13 @@ handle 'set' magic. See C. */ void -Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) +Perl_sv_setpv(pTHX_ register SV *const sv, register const char *const ptr) { dVAR; register STRLEN len; + PERL_ARGS_ASSERT_SV_SETPV; + SV_CHECK_THINKFIRST_COW_DROP(sv); if (!ptr) { (void)SvOK_off(sv); @@ -3993,8 +4131,10 @@ Like C, but also handles 'set' magic. */ void -Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) +Perl_sv_setpv_mg(pTHX_ register SV *const sv, register const char *const ptr) { + PERL_ARGS_ASSERT_SV_SETPV_MG; + sv_setpv(sv,ptr); SvSETMAGIC(sv); } @@ -4020,10 +4160,13 @@ C, and already meets the requirements for storing in C) */ void -Perl_sv_usepvn_flags(pTHX_ SV *sv, char *ptr, STRLEN len, U32 flags) +Perl_sv_usepvn_flags(pTHX_ SV *const sv, char *ptr, const STRLEN len, const U32 flags) { dVAR; STRLEN allocate; + + PERL_ARGS_ASSERT_SV_USEPVN_FLAGS; + SV_CHECK_THINKFIRST_COW_DROP(sv); SvUPGRADE(sv, SVt_PV); if (!ptr) { @@ -4041,7 +4184,12 @@ Perl_sv_usepvn_flags(pTHX_ SV *sv, char *ptr, STRLEN len, U32 flags) #endif allocate = (flags & SV_HAS_TRAILING_NUL) - ? len + 1: PERL_STRLEN_ROUNDUP(len + 1); + ? len + 1 : +#ifdef Perl_safesysmalloc_size + len + 1; +#else + PERL_STRLEN_ROUNDUP(len + 1); +#endif if (flags & SV_HAS_TRAILING_NUL) { /* It's long enough - do nothing. Specfically Perl_newCONSTSUB is relying on this. */ @@ -4057,9 +4205,13 @@ Perl_sv_usepvn_flags(pTHX_ SV *sv, char *ptr, STRLEN len, U32 flags) ptr = (char*) saferealloc (ptr, allocate); #endif } - SvPV_set(sv, ptr); - SvCUR_set(sv, len); +#ifdef Perl_safesysmalloc_size + SvLEN_set(sv, Perl_safesysmalloc_size(ptr)); +#else SvLEN_set(sv, allocate); +#endif + SvCUR_set(sv, len); + SvPV_set(sv, ptr); if (!(flags & SV_HAS_TRAILING_NUL)) { ptr[len] = '\0'; } @@ -4078,6 +4230,8 @@ Perl_sv_usepvn_flags(pTHX_ SV *sv, char *ptr, STRLEN len, U32 flags) STATIC void S_sv_release_COW(pTHX_ register SV *sv, const char *pvx, SV *after) { + PERL_ARGS_ASSERT_SV_RELEASE_COW; + { /* this SV was SvIsCOW_normal(sv) */ /* we need to find the SV pointing to us. */ SV *current = SV_COW_NEXT_SV(after); @@ -4122,9 +4276,12 @@ with flags set to 0. */ void -Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) +Perl_sv_force_normal_flags(pTHX_ register SV *const sv, const U32 flags) { dVAR; + + PERL_ARGS_ASSERT_SV_FORCE_NORMAL_FLAGS; + #ifdef PERL_OLD_COPY_ON_WRITE if (SvREADONLY(sv)) { /* At this point I believe I should acquire a global SV mutex. */ @@ -4208,7 +4365,7 @@ refer to the same chunk of data. */ void -Perl_sv_chop(pTHX_ register SV *sv, register const char *ptr) +Perl_sv_chop(pTHX_ register SV *const sv, register const char *const ptr) { STRLEN delta; STRLEN old_delta; @@ -4217,6 +4374,8 @@ Perl_sv_chop(pTHX_ register SV *sv, register const char *ptr) const U8 *real_start; #endif + PERL_ARGS_ASSERT_SV_CHOP; + if (!ptr || !SvPOKp(sv)) return; delta = ptr - SvPVX_const(sv); @@ -4292,12 +4451,14 @@ in terms of this function. */ void -Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) +Perl_sv_catpvn_flags(pTHX_ register SV *const dsv, register const char *sstr, register const STRLEN slen, const I32 flags) { dVAR; STRLEN dlen; const char * const dstr = SvPV_force_flags(dsv, dlen, flags); + PERL_ARGS_ASSERT_SV_CATPVN_FLAGS; + SvGROW(dsv, dlen + slen + 1); if (sstr == dstr) sstr = SvPVX_const(dsv); @@ -4327,10 +4488,13 @@ and C are implemented in terms of this function. =cut */ void -Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) +Perl_sv_catsv_flags(pTHX_ SV *const dsv, register SV *const ssv, const I32 flags) { dVAR; - if (ssv) { + + PERL_ARGS_ASSERT_SV_CATSV_FLAGS; + + if (ssv) { STRLEN slen; const char *spv = SvPV_const(ssv, slen); if (spv) { @@ -4376,13 +4540,15 @@ valid UTF-8. Handles 'get' magic, but not 'set' magic. See C. =cut */ void -Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) +Perl_sv_catpv(pTHX_ register SV *const sv, register const char *ptr) { dVAR; register STRLEN len; STRLEN tlen; char *junk; + PERL_ARGS_ASSERT_SV_CATPV; + if (!ptr) return; junk = SvPV_force(sv, tlen); @@ -4405,8 +4571,10 @@ Like C, but also handles 'set' magic. */ void -Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) +Perl_sv_catpv_mg(pTHX_ register SV *const sv, register const char *const ptr) { + PERL_ARGS_ASSERT_SV_CATPV_MG; + sv_catpv(sv,ptr); SvSETMAGIC(sv); } @@ -4429,7 +4597,7 @@ modules supporting older perls. */ SV * -Perl_newSV(pTHX_ STRLEN len) +Perl_newSV(pTHX_ const STRLEN len) { dVAR; register SV *sv; @@ -4461,12 +4629,14 @@ to contain an C and is stored as-is with its REFCNT incremented. =cut */ MAGIC * -Perl_sv_magicext(pTHX_ SV* sv, SV* obj, int how, const MGVTBL *vtable, - const char* name, I32 namlen) +Perl_sv_magicext(pTHX_ SV *const sv, SV *const obj, const int how, + const MGVTBL *const vtable, const char *const name, const I32 namlen) { dVAR; MAGIC* mg; + PERL_ARGS_ASSERT_SV_MAGICEXT; + SvUPGRADE(sv, SVt_PVMG); Newxz(mg, 1, MAGIC); mg->mg_moremagic = SvMAGIC(sv); @@ -4544,12 +4714,15 @@ to add more than one instance of the same 'how'. */ void -Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) +Perl_sv_magic(pTHX_ register SV *const sv, SV *const obj, const int how, + const char *const name, const I32 namlen) { dVAR; const MGVTBL *vtable; MAGIC* mg; + PERL_ARGS_ASSERT_SV_MAGIC; + #ifdef PERL_OLD_COPY_ON_WRITE if (SvIsCOW(sv)) sv_force_normal_flags(sv, 0); @@ -4729,10 +4902,13 @@ Removes all magic of type C from an SV. */ int -Perl_sv_unmagic(pTHX_ SV *sv, int type) +Perl_sv_unmagic(pTHX_ SV *const sv, const int type) { MAGIC* mg; MAGIC** mgp; + + PERL_ARGS_ASSERT_SV_UNMAGIC; + if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) return 0; mgp = &(((XPVMG*) SvANY(sv))->xmg_u.xmg_magic); @@ -4779,9 +4955,12 @@ called after the RV is cleared. */ SV * -Perl_sv_rvweaken(pTHX_ SV *sv) +Perl_sv_rvweaken(pTHX_ SV *const sv) { SV *tsv; + + PERL_ARGS_ASSERT_SV_RVWEAKEN; + if (!SvOK(sv)) /* let undefs pass */ return sv; if (!SvROK(sv)) @@ -4803,11 +4982,13 @@ Perl_sv_rvweaken(pTHX_ SV *sv) */ void -Perl_sv_add_backref(pTHX_ SV *tsv, SV *sv) +Perl_sv_add_backref(pTHX_ SV *const tsv, SV *const sv) { dVAR; AV *av; + PERL_ARGS_ASSERT_SV_ADD_BACKREF; + if (SvTYPE(tsv) == SVt_PVHV) { AV **const avp = Perl_hv_backreferences_p(aTHX_ (HV*)tsv); @@ -4857,13 +5038,15 @@ Perl_sv_add_backref(pTHX_ SV *tsv, SV *sv) */ STATIC void -S_sv_del_backref(pTHX_ SV *tsv, SV *sv) +S_sv_del_backref(pTHX_ SV *const tsv, SV *const sv) { dVAR; AV *av = NULL; SV **svp; I32 i; + PERL_ARGS_ASSERT_SV_DEL_BACKREF; + if (SvTYPE(tsv) == SVt_PVHV && SvOOK(tsv)) { av = *Perl_hv_backreferences_p(aTHX_ (HV*)tsv); /* We mustn't attempt to "fix up" the hash here by moving the @@ -4907,10 +5090,11 @@ S_sv_del_backref(pTHX_ SV *tsv, SV *sv) } int -Perl_sv_kill_backrefs(pTHX_ SV *sv, AV *av) +Perl_sv_kill_backrefs(pTHX_ SV *const sv, AV *const av) { SV **svp = AvARRAY(av); + 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 @@ -4958,7 +5142,8 @@ the Perl substr() function. */ void -Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, const char *little, STRLEN littlelen) +Perl_sv_insert(pTHX_ SV *const bigstr, const STRLEN offset, const STRLEN len, + const char *const little, const STRLEN littlelen) { dVAR; register char *big; @@ -4968,6 +5153,7 @@ Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, const char *little, register I32 i; STRLEN curlen; + PERL_ARGS_ASSERT_SV_INSERT; if (!bigstr) Perl_croak(aTHX_ "Can't modify non-existent substring"); @@ -5054,10 +5240,13 @@ time you'll want to use C or one of its many macro front-ends. */ void -Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) +Perl_sv_replace(pTHX_ register SV *const sv, register SV *const nsv) { dVAR; const U32 refcnt = SvREFCNT(sv); + + PERL_ARGS_ASSERT_SV_REPLACE; + SV_CHECK_THINKFIRST_COW_DROP(sv); if (SvREFCNT(nsv) != 1) { Perl_croak(aTHX_ "panic: reference miscount on nsv in sv_replace() (%" @@ -5133,7 +5322,7 @@ instead. */ void -Perl_sv_clear(pTHX_ register SV *sv) +Perl_sv_clear(pTHX_ register SV *const sv) { dVAR; const U32 type = SvTYPE(sv); @@ -5141,7 +5330,7 @@ Perl_sv_clear(pTHX_ register SV *sv) = bodies_by_type + type; HV *stash; - assert(sv); + PERL_ARGS_ASSERT_SV_CLEAR; assert(SvREFCNT(sv) == 0); assert(SvTYPE(sv) != SVTYPEMASK); @@ -5240,7 +5429,7 @@ Perl_sv_clear(pTHX_ register SV *sv) goto freescalar; case SVt_REGEXP: /* FIXME for plugins */ - pregfree2(sv); + pregfree2((REGEXP*) sv); goto freescalar; case SVt_PVCV: case SVt_PVFM: @@ -5357,7 +5546,7 @@ instead. */ SV * -Perl_sv_newref(pTHX_ SV *sv) +Perl_sv_newref(pTHX_ SV *const sv) { PERL_UNUSED_CONTEXT; if (sv) @@ -5377,7 +5566,7 @@ Normally called via a wrapper macro C. */ void -Perl_sv_free(pTHX_ SV *sv) +Perl_sv_free(pTHX_ SV *const sv) { dVAR; if (!sv) @@ -5395,17 +5584,28 @@ Perl_sv_free(pTHX_ SV *sv) return; } if (ckWARN_d(WARN_INTERNAL)) { - Perl_warner(aTHX_ packWARN(WARN_INTERNAL), - "Attempt to free unreferenced scalar: SV 0x%"UVxf - pTHX__FORMAT, PTR2UV(sv) pTHX__VALUE); #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP Perl_dump_sv_child(aTHX_ sv); #else #ifdef DEBUG_LEAKING_SCALARS - sv_dump(sv); + sv_dump(sv); #endif +#ifdef DEBUG_LEAKING_SCALARS_ABORT + if (PL_warnhook == PERL_WARNHOOK_FATAL + || ckDEAD(packWARN(WARN_INTERNAL))) { + /* Don't let Perl_warner cause us to escape our fate: */ + abort(); + } +#endif + /* This may not return: */ + Perl_warner(aTHX_ packWARN(WARN_INTERNAL), + "Attempt to free unreferenced scalar: SV 0x%"UVxf + pTHX__FORMAT, PTR2UV(sv) pTHX__VALUE); #endif } +#ifdef DEBUG_LEAKING_SCALARS_ABORT + abort(); +#endif return; } if (--(SvREFCNT(sv)) > 0) @@ -5414,9 +5614,12 @@ Perl_sv_free(pTHX_ SV *sv) } void -Perl_sv_free2(pTHX_ SV *sv) +Perl_sv_free2(pTHX_ SV *const sv) { dVAR; + + PERL_ARGS_ASSERT_SV_FREE2; + #ifdef DEBUGGING if (SvTEMP(sv)) { if (ckWARN_d(WARN_DEBUGGING)) @@ -5446,7 +5649,7 @@ coercion. See also C, which gives raw access to the xpv_cur slot. */ STRLEN -Perl_sv_len(pTHX_ register SV *sv) +Perl_sv_len(pTHX_ register SV *const sv) { STRLEN len; @@ -5479,7 +5682,7 @@ UTF-8 bytes as a single character. Handles magic and type coercion. */ STRLEN -Perl_sv_len_utf8(pTHX_ register SV *sv) +Perl_sv_len_utf8(pTHX_ register SV *const sv) { if (!sv) return 0; @@ -5536,6 +5739,8 @@ S_sv_pos_u2b_forwards(const U8 *const start, const U8 *const send, { const U8 *s = start; + PERL_ARGS_ASSERT_SV_POS_U2B_FORWARDS; + while (s < send && uoffset--) s += UTF8SKIP(s); if (s > send) { @@ -5551,9 +5756,12 @@ S_sv_pos_u2b_forwards(const U8 *const start, const U8 *const send, the passed in UTF-8 offset. */ static STRLEN S_sv_pos_u2b_midway(const U8 *const start, const U8 *send, - STRLEN uoffset, STRLEN uend) + const STRLEN uoffset, const STRLEN uend) { STRLEN backw = uend - uoffset; + + PERL_ARGS_ASSERT_SV_POS_U2B_MIDWAY; + if (uoffset < 2 * backw) { /* The assumption is that going forwards is twice the speed of going forward (that's where the 2 * backw comes from). @@ -5578,12 +5786,15 @@ S_sv_pos_u2b_midway(const U8 *const start, const U8 *send, will be used to reduce the amount of linear searching. The cache will be created if necessary, and the found value offered to it for update. */ static STRLEN -S_sv_pos_u2b_cached(pTHX_ SV *sv, MAGIC **mgp, const U8 *const start, - const U8 *const send, STRLEN uoffset, - STRLEN uoffset0, STRLEN boffset0) { +S_sv_pos_u2b_cached(pTHX_ SV *const sv, MAGIC **const mgp, const U8 *const start, + const U8 *const send, const STRLEN uoffset, + STRLEN uoffset0, STRLEN boffset0) +{ STRLEN boffset = 0; /* Actually always set, but let's keep gcc happy. */ bool found = FALSE; + PERL_ARGS_ASSERT_SV_POS_U2B_CACHED; + assert (uoffset >= uoffset0); if (SvMAGICAL(sv) && !SvREADONLY(sv) && PL_utf8cache @@ -5671,7 +5882,8 @@ S_sv_pos_u2b_cached(pTHX_ SV *sv, MAGIC **mgp, const U8 *const start, boffset = real_boffset; } - S_utf8_mg_pos_cache_update(aTHX_ sv, mgp, boffset, uoffset, send - start); + if (PL_utf8cache) + utf8_mg_pos_cache_update(sv, mgp, boffset, uoffset, send - start); return boffset; } @@ -5696,11 +5908,13 @@ type coercion. */ void -Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) +Perl_sv_pos_u2b(pTHX_ register SV *const sv, I32 *const offsetp, I32 *const lenp) { const U8 *start; STRLEN len; + PERL_ARGS_ASSERT_SV_POS_U2B; + if (!sv) return; @@ -5757,10 +5971,13 @@ Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) from. */ static void -S_utf8_mg_pos_cache_update(pTHX_ SV *sv, MAGIC **mgp, STRLEN byte, STRLEN utf8, - STRLEN blen) +S_utf8_mg_pos_cache_update(pTHX_ SV *const sv, MAGIC **const mgp, const STRLEN byte, + const STRLEN utf8, const STRLEN blen) { STRLEN *cache; + + PERL_ARGS_ASSERT_UTF8_MG_POS_CACHE_UPDATE; + if (SvREADONLY(sv)) return; @@ -5894,12 +6111,14 @@ S_utf8_mg_pos_cache_update(pTHX_ SV *sv, MAGIC **mgp, STRLEN byte, STRLEN utf8, assumption is made as in S_sv_pos_u2b_midway(), namely that walking backward is half the speed of walking forward. */ static STRLEN -S_sv_pos_b2u_midway(pTHX_ const U8 *s, const U8 *const target, const U8 *end, - STRLEN endu) +S_sv_pos_b2u_midway(pTHX_ const U8 *const s, const U8 *const target, + const U8 *end, STRLEN endu) { const STRLEN forw = target - s; STRLEN backw = end - target; + PERL_ARGS_ASSERT_SV_POS_B2U_MIDWAY; + if (forw < 2 * backw) { return utf8_length(s, target); } @@ -5931,7 +6150,7 @@ Handles magic and type coercion. * */ void -Perl_sv_pos_b2u(pTHX_ register SV* sv, I32* offsetp) +Perl_sv_pos_b2u(pTHX_ register SV *const sv, I32 *const offsetp) { const U8* s; const STRLEN byte = *offsetp; @@ -5941,6 +6160,8 @@ Perl_sv_pos_b2u(pTHX_ register SV* sv, I32* offsetp) const U8* send; bool found = FALSE; + PERL_ARGS_ASSERT_SV_POS_B2U; + if (!sv) return; @@ -6017,7 +6238,8 @@ Perl_sv_pos_b2u(pTHX_ register SV* sv, I32* offsetp) } *offsetp = len; - S_utf8_mg_pos_cache_update(aTHX_ sv, &mg, byte, len, blen); + if (PL_utf8cache) + utf8_mg_pos_cache_update(sv, &mg, byte, len, blen); } /* @@ -6132,7 +6354,7 @@ coerce its args to strings if necessary. See also C. */ I32 -Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) +Perl_sv_cmp(pTHX_ register SV *const sv1, register SV *const sv2) { dVAR; STRLEN cur1, cur2; @@ -6208,13 +6430,13 @@ Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and 'use bytes' aware, handles get magic, and will coerce its args to strings -if necessary. See also C. See also C. +if necessary. See also C. =cut */ I32 -Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) +Perl_sv_cmp_locale(pTHX_ register SV *const sv1, register SV *const sv2) { dVAR; #ifdef USE_LOCALE_COLLATE @@ -6279,11 +6501,13 @@ settings. */ char * -Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) +Perl_sv_collxfrm(pTHX_ SV *const sv, STRLEN *const nxp) { dVAR; MAGIC *mg; + PERL_ARGS_ASSERT_SV_COLLXFRM; + mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { const char *s; @@ -6294,11 +6518,6 @@ Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) Safefree(mg->mg_ptr); s = SvPV_const(sv, len); if ((xf = mem_collxfrm(s, len, &xlen))) { - if (SvREADONLY(sv)) { - SAVEFREEPV(xf); - *nxp = xlen; - return xf + sizeof(PL_collation_ix); - } if (! mg) { #ifdef PERL_OLD_COPY_ON_WRITE if (SvIsCOW(sv)) @@ -6340,7 +6559,7 @@ appending to the currently-stored string. */ char * -Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) +Perl_sv_gets(pTHX_ register SV *const sv, register PerlIO *const fp, I32 append) { dVAR; const char *rsptr; @@ -6351,6 +6570,8 @@ Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) I32 i = 0; I32 rspara = 0; + PERL_ARGS_ASSERT_SV_GETS; + if (SvTHINKFIRST(sv)) sv_force_normal_flags(sv, append ? 0 : SV_COW_DROP_PV); /* XXX. If you make this PVIV, then copy on write can copy scalars read @@ -6696,7 +6917,7 @@ if necessary. Handles 'get' magic. */ void -Perl_sv_inc(pTHX_ register SV *sv) +Perl_sv_inc(pTHX_ register SV *const sv) { dVAR; register char *d; @@ -6750,8 +6971,15 @@ Perl_sv_inc(pTHX_ register SV *sv) return; } if (flags & SVp_NOK) { + const NV was = SvNVX(sv); + if (NV_OVERFLOWS_INTEGERS_AT && + was >= NV_OVERFLOWS_INTEGERS_AT && ckWARN(WARN_IMPRECISION)) { + Perl_warner(aTHX_ packWARN(WARN_IMPRECISION), + "Lost precision when incrementing %" NVff " by 1", + was); + } (void)SvNOK_only(sv); - SvNV_set(sv, SvNVX(sv) + 1.0); + SvNV_set(sv, was + 1.0); return; } @@ -6853,7 +7081,7 @@ if necessary. Handles 'get' magic. */ void -Perl_sv_dec(pTHX_ register SV *sv) +Perl_sv_dec(pTHX_ register SV *const sv) { dVAR; int flags; @@ -6895,8 +7123,10 @@ Perl_sv_dec(pTHX_ register SV *sv) SvUV_set(sv, SvUVX(sv) - 1); } } else { - if (SvIVX(sv) == IV_MIN) - sv_setnv(sv, (NV)IV_MIN - 1.0); + if (SvIVX(sv) == IV_MIN) { + sv_setnv(sv, (NV)IV_MIN); + goto oops_its_num; + } else { (void)SvIOK_only(sv); SvIV_set(sv, SvIVX(sv) - 1); @@ -6905,9 +7135,19 @@ Perl_sv_dec(pTHX_ register SV *sv) return; } if (flags & SVp_NOK) { - SvNV_set(sv, SvNVX(sv) - 1.0); - (void)SvNOK_only(sv); - return; + oops_its_num: + { + const NV was = SvNVX(sv); + if (NV_OVERFLOWS_INTEGERS_AT && + was <= -NV_OVERFLOWS_INTEGERS_AT && ckWARN(WARN_IMPRECISION)) { + Perl_warner(aTHX_ packWARN(WARN_IMPRECISION), + "Lost precision when decrementing %" NVff " by 1", + was); + } + (void)SvNOK_only(sv); + SvNV_set(sv, was - 1.0); + return; + } } if (!(flags & SVp_POK)) { if ((flags & SVTYPEMASK) < SVt_PVIV) @@ -6970,7 +7210,7 @@ statement boundaries. See also C and C. * permanent location. */ SV * -Perl_sv_mortalcopy(pTHX_ SV *oldstr) +Perl_sv_mortalcopy(pTHX_ SV *const oldstr) { dVAR; register SV *sv; @@ -7027,7 +7267,7 @@ C is a convenience wrapper for this function, defined as */ SV * -Perl_newSVpvn_flags(pTHX_ const char *s, STRLEN len, U32 flags) +Perl_newSVpvn_flags(pTHX_ const char *const s, const STRLEN len, const U32 flags) { dVAR; register SV *sv; @@ -7054,7 +7294,7 @@ and C. */ SV * -Perl_sv_2mortal(pTHX_ register SV *sv) +Perl_sv_2mortal(pTHX_ register SV *const sv) { dVAR; if (!sv) @@ -7078,7 +7318,7 @@ strlen(). For efficiency, consider using C instead. */ SV * -Perl_newSVpv(pTHX_ const char *s, STRLEN len) +Perl_newSVpv(pTHX_ const char *const s, const STRLEN len) { dVAR; register SV *sv; @@ -7100,7 +7340,7 @@ C bytes long. If the C argument is NULL the new SV will be undefined. */ SV * -Perl_newSVpvn(pTHX_ const char *s, STRLEN len) +Perl_newSVpvn(pTHX_ const char *const s, const STRLEN len) { dVAR; register SV *sv; @@ -7121,7 +7361,7 @@ SV if the hek is NULL. */ SV * -Perl_newSVhek(pTHX_ const HEK *hek) +Perl_newSVhek(pTHX_ const HEK *const hek) { dVAR; if (!hek) { @@ -7237,11 +7477,14 @@ Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) */ SV * -Perl_newSVpvf_nocontext(const char* pat, ...) +Perl_newSVpvf_nocontext(const char *const pat, ...) { dTHX; register SV *sv; va_list args; + + PERL_ARGS_ASSERT_NEWSVPVF_NOCONTEXT; + va_start(args, pat); sv = vnewSVpvf(pat, &args); va_end(args); @@ -7259,10 +7502,13 @@ C. */ SV * -Perl_newSVpvf(pTHX_ const char* pat, ...) +Perl_newSVpvf(pTHX_ const char *const pat, ...) { register SV *sv; va_list args; + + PERL_ARGS_ASSERT_NEWSVPVF; + va_start(args, pat); sv = vnewSVpvf(pat, &args); va_end(args); @@ -7272,10 +7518,13 @@ Perl_newSVpvf(pTHX_ const char* pat, ...) /* backend for newSVpvf() and newSVpvf_nocontext() */ SV * -Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) +Perl_vnewSVpvf(pTHX_ const char *const pat, va_list *const args) { dVAR; register SV *sv; + + PERL_ARGS_ASSERT_VNEWSVPVF; + new_SV(sv); sv_vsetpvfn(sv, pat, strlen(pat), args, NULL, 0, NULL); return sv; @@ -7291,7 +7540,7 @@ The reference count for the SV is set to 1. */ SV * -Perl_newSVnv(pTHX_ NV n) +Perl_newSVnv(pTHX_ const NV n) { dVAR; register SV *sv; @@ -7311,7 +7560,7 @@ SV is set to 1. */ SV * -Perl_newSViv(pTHX_ IV i) +Perl_newSViv(pTHX_ const IV i) { dVAR; register SV *sv; @@ -7331,7 +7580,7 @@ The reference count for the SV is set to 1. */ SV * -Perl_newSVuv(pTHX_ UV u) +Perl_newSVuv(pTHX_ const UV u) { dVAR; register SV *sv; @@ -7351,7 +7600,7 @@ is set to 1. */ SV * -Perl_newSV_type(pTHX_ svtype type) +Perl_newSV_type(pTHX_ const svtype type) { register SV *sv; @@ -7370,10 +7619,13 @@ SV is B incremented. */ SV * -Perl_newRV_noinc(pTHX_ SV *tmpRef) +Perl_newRV_noinc(pTHX_ SV *const tmpRef) { dVAR; register SV *sv = newSV_type(SVt_IV); + + PERL_ARGS_ASSERT_NEWRV_NOINC; + SvTEMP_off(tmpRef); SvRV_set(sv, tmpRef); SvROK_on(sv); @@ -7385,9 +7637,12 @@ Perl_newRV_noinc(pTHX_ SV *tmpRef) */ SV * -Perl_newRV(pTHX_ SV *sv) +Perl_newRV(pTHX_ SV *const sv) { dVAR; + + PERL_ARGS_ASSERT_NEWRV; + return newRV_noinc(SvREFCNT_inc_simple_NN(sv)); } @@ -7401,7 +7656,7 @@ Creates a new SV which is an exact duplicate of the original SV. */ SV * -Perl_newSVsv(pTHX_ register SV *old) +Perl_newSVsv(pTHX_ register SV *const old) { dVAR; register SV *sv; @@ -7431,11 +7686,13 @@ Note that the perl-level function is vaguely deprecated. */ void -Perl_sv_reset(pTHX_ register const char *s, HV *stash) +Perl_sv_reset(pTHX_ register const char *s, HV *const stash) { dVAR; char todo[PERL_UCHAR_MAX+1]; + PERL_ARGS_ASSERT_SV_RESET; + if (!stash) return; @@ -7533,11 +7790,13 @@ named after the PV if we're a string. */ IO* -Perl_sv_2io(pTHX_ SV *sv) +Perl_sv_2io(pTHX_ SV *const sv) { IO* io; GV* gv; + PERL_ARGS_ASSERT_SV_2IO; + switch (SvTYPE(sv)) { case SVt_PVIO: io = (IO*)sv; @@ -7576,12 +7835,14 @@ The flags in C are passed to sv_fetchsv. */ CV * -Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) +Perl_sv_2cv(pTHX_ SV *sv, HV **const st, GV **const gvp, const I32 lref) { dVAR; GV *gv = NULL; CV *cv = NULL; + PERL_ARGS_ASSERT_SV_2CV; + if (!sv) { *st = NULL; *gvp = NULL; @@ -7651,7 +7912,7 @@ Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) LEAVE; if (!GvCVu(gv)) Perl_croak(aTHX_ "Unable to create sub named \"%"SVf"\"", - SVfARG(sv)); + SVfARG(SvOK(sv) ? sv : &PL_sv_no)); } return GvCVu(gv); } @@ -7668,7 +7929,7 @@ instead use an in-line version. */ I32 -Perl_sv_true(pTHX_ register SV *sv) +Perl_sv_true(pTHX_ register SV *const sv) { if (!sv) return 0; @@ -7713,9 +7974,12 @@ C and C */ char * -Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) +Perl_sv_pvn_force_flags(pTHX_ SV *const sv, STRLEN *const lp, const I32 flags) { dVAR; + + PERL_ARGS_ASSERT_SV_PVN_FORCE_FLAGS; + if (SvTHINKFIRST(sv) && !SvROK(sv)) sv_force_normal_flags(sv, 0); @@ -7771,8 +8035,10 @@ The backend for the C macro. Always use the macro instead. */ char * -Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) +Perl_sv_pvbyten_force(pTHX_ SV *const sv, STRLEN *const lp) { + PERL_ARGS_ASSERT_SV_PVBYTEN_FORCE; + sv_pvn_force(sv,lp); sv_utf8_downgrade(sv,0); *lp = SvCUR(sv); @@ -7788,8 +8054,10 @@ The backend for the C macro. Always use the macro instead. */ char * -Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) +Perl_sv_pvutf8n_force(pTHX_ SV *const sv, STRLEN *const lp) { + PERL_ARGS_ASSERT_SV_PVUTF8N_FORCE; + sv_pvn_force(sv,lp); sv_utf8_upgrade(sv); *lp = SvCUR(sv); @@ -7805,8 +8073,10 @@ Returns a string describing what the SV is a reference to. */ const char * -Perl_sv_reftype(pTHX_ const SV *sv, int ob) +Perl_sv_reftype(pTHX_ const SV *const sv, const int ob) { + PERL_ARGS_ASSERT_SV_REFTYPE; + /* The fact that I don't need to downcast to char * everywhere, only in ?: inside return suggests a const propagation bug in g++. */ if (ob && SvOBJECT(sv)) { @@ -7841,7 +8111,7 @@ Perl_sv_reftype(pTHX_ const SV *sv, int ob) case SVt_PVFM: return "FORMAT"; case SVt_PVIO: return "IO"; case SVt_BIND: return "BIND"; - case SVt_REGEXP: return "Regexp"; /* FIXME? to "REGEXP" */ + case SVt_REGEXP: return "REGEXP"; default: return "UNKNOWN"; } } @@ -7882,9 +8152,12 @@ an inheritance relationship. */ int -Perl_sv_isa(pTHX_ SV *sv, const char *name) +Perl_sv_isa(pTHX_ SV *sv, const char *const name) { const char *hvname; + + PERL_ARGS_ASSERT_SV_ISA; + if (!sv) return 0; SvGETMAGIC(sv); @@ -7912,11 +8185,13 @@ reference count is 1. */ SV* -Perl_newSVrv(pTHX_ SV *rv, const char *classname) +Perl_newSVrv(pTHX_ SV *const rv, const char *const classname) { dVAR; SV *sv; + PERL_ARGS_ASSERT_NEWSVRV; + new_SV(sv); SV_CHECK_THINKFIRST_COW_DROP(rv); @@ -7966,9 +8241,12 @@ Note that C copies the string while this copies the pointer. */ SV* -Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) +Perl_sv_setref_pv(pTHX_ SV *const rv, const char *const classname, void *const pv) { dVAR; + + PERL_ARGS_ASSERT_SV_SETREF_PV; + if (!pv) { sv_setsv(rv, &PL_sv_undef); SvSETMAGIC(rv); @@ -7991,8 +8269,10 @@ will have a reference count of 1, and the RV will be returned. */ SV* -Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) +Perl_sv_setref_iv(pTHX_ SV *const rv, const char *const classname, const IV iv) { + PERL_ARGS_ASSERT_SV_SETREF_IV; + sv_setiv(newSVrv(rv,classname), iv); return rv; } @@ -8010,8 +8290,10 @@ will have a reference count of 1, and the RV will be returned. */ SV* -Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) +Perl_sv_setref_uv(pTHX_ SV *const rv, const char *const classname, const UV uv) { + PERL_ARGS_ASSERT_SV_SETREF_UV; + sv_setuv(newSVrv(rv,classname), uv); return rv; } @@ -8029,8 +8311,10 @@ will have a reference count of 1, and the RV will be returned. */ SV* -Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) +Perl_sv_setref_nv(pTHX_ SV *const rv, const char *const classname, const NV nv) { + PERL_ARGS_ASSERT_SV_SETREF_NV; + sv_setnv(newSVrv(rv,classname), nv); return rv; } @@ -8051,8 +8335,11 @@ Note that C copies the pointer while this copies the string. */ SV* -Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, const char *pv, STRLEN n) +Perl_sv_setref_pvn(pTHX_ SV *const rv, const char *const classname, + const char *const pv, const STRLEN n) { + PERL_ARGS_ASSERT_SV_SETREF_PVN; + sv_setpvn(newSVrv(rv,classname), pv, n); return rv; } @@ -8068,10 +8355,13 @@ of the SV is unaffected. */ SV* -Perl_sv_bless(pTHX_ SV *sv, HV *stash) +Perl_sv_bless(pTHX_ SV *const sv, HV *const stash) { dVAR; SV *tmpRef; + + PERL_ARGS_ASSERT_SV_BLESS; + if (!SvROK(sv)) Perl_croak(aTHX_ "Can't bless non-reference value"); tmpRef = SvRV(sv); @@ -8110,13 +8400,15 @@ Perl_sv_bless(pTHX_ SV *sv, HV *stash) */ STATIC void -S_sv_unglob(pTHX_ SV *sv) +S_sv_unglob(pTHX_ SV *const sv) { dVAR; void *xpvmg; HV *stash; SV * const temp = sv_newmortal(); + PERL_ARGS_ASSERT_SV_UNGLOB; + assert(SvTYPE(sv) == SVt_PVGV); SvFAKE_off(sv); gv_efullname3(temp, (GV *) sv, "*"); @@ -8165,10 +8457,12 @@ See C. */ void -Perl_sv_unref_flags(pTHX_ SV *ref, U32 flags) +Perl_sv_unref_flags(pTHX_ SV *const ref, const U32 flags) { SV* const target = SvRV(ref); + PERL_ARGS_ASSERT_SV_UNREF_FLAGS; + if (SvWEAKREF(ref)) { sv_del_backref(target, ref); SvWEAKREF_off(ref); @@ -8193,8 +8487,10 @@ Untaint an SV. Use C instead. */ void -Perl_sv_untaint(pTHX_ SV *sv) +Perl_sv_untaint(pTHX_ SV *const sv) { + PERL_ARGS_ASSERT_SV_UNTAINT; + if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { MAGIC * const mg = mg_find(sv, PERL_MAGIC_taint); if (mg) @@ -8210,8 +8506,10 @@ Test an SV for taintedness. Use C instead. */ bool -Perl_sv_tainted(pTHX_ SV *sv) +Perl_sv_tainted(pTHX_ SV *const sv) { + PERL_ARGS_ASSERT_SV_TAINTED; + if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { const MAGIC * const mg = mg_find(sv, PERL_MAGIC_taint); if (mg && (mg->mg_len & 1) ) @@ -8230,12 +8528,14 @@ Does not handle 'set' magic. See C. */ void -Perl_sv_setpviv(pTHX_ SV *sv, IV iv) +Perl_sv_setpviv(pTHX_ SV *const sv, const IV iv) { char buf[TYPE_CHARS(UV)]; char *ebuf; char * const ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); + PERL_ARGS_ASSERT_SV_SETPVIV; + sv_setpvn(sv, ptr, ebuf - ptr); } @@ -8248,8 +8548,10 @@ Like C, but also handles 'set' magic. */ void -Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) +Perl_sv_setpviv_mg(pTHX_ SV *const sv, const IV iv) { + PERL_ARGS_ASSERT_SV_SETPVIV_MG; + sv_setpviv(sv, iv); SvSETMAGIC(sv); } @@ -8262,10 +8564,13 @@ Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) */ void -Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) +Perl_sv_setpvf_nocontext(SV *const sv, const char *const pat, ...) { dTHX; va_list args; + + PERL_ARGS_ASSERT_SV_SETPVF_NOCONTEXT; + va_start(args, pat); sv_vsetpvf(sv, pat, &args); va_end(args); @@ -8277,10 +8582,13 @@ Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) */ void -Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) +Perl_sv_setpvf_mg_nocontext(SV *const sv, const char *const pat, ...) { dTHX; va_list args; + + PERL_ARGS_ASSERT_SV_SETPVF_MG_NOCONTEXT; + va_start(args, pat); sv_vsetpvf_mg(sv, pat, &args); va_end(args); @@ -8297,9 +8605,12 @@ appending it. Does not handle 'set' magic. See C. */ void -Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) +Perl_sv_setpvf(pTHX_ SV *const sv, const char *const pat, ...) { va_list args; + + PERL_ARGS_ASSERT_SV_SETPVF; + va_start(args, pat); sv_vsetpvf(sv, pat, &args); va_end(args); @@ -8317,8 +8628,10 @@ Usually used via its frontend C. */ void -Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) +Perl_sv_vsetpvf(pTHX_ SV *const sv, const char *const pat, va_list *const args) { + PERL_ARGS_ASSERT_SV_VSETPVF; + sv_vsetpvfn(sv, pat, strlen(pat), args, NULL, 0, NULL); } @@ -8331,9 +8644,12 @@ Like C, but also handles 'set' magic. */ void -Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) +Perl_sv_setpvf_mg(pTHX_ SV *const sv, const char *const pat, ...) { va_list args; + + PERL_ARGS_ASSERT_SV_SETPVF_MG; + va_start(args, pat); sv_vsetpvf_mg(sv, pat, &args); va_end(args); @@ -8350,8 +8666,10 @@ Usually used via its frontend C. */ void -Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) +Perl_sv_vsetpvf_mg(pTHX_ SV *const sv, const char *const pat, va_list *const args) { + PERL_ARGS_ASSERT_SV_VSETPVF_MG; + sv_vsetpvfn(sv, pat, strlen(pat), args, NULL, 0, NULL); SvSETMAGIC(sv); } @@ -8364,10 +8682,13 @@ Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) */ void -Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) +Perl_sv_catpvf_nocontext(SV *const sv, const char *const pat, ...) { dTHX; va_list args; + + PERL_ARGS_ASSERT_SV_CATPVF_NOCONTEXT; + va_start(args, pat); sv_vcatpvf(sv, pat, &args); va_end(args); @@ -8379,10 +8700,13 @@ Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) */ void -Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) +Perl_sv_catpvf_mg_nocontext(SV *const sv, const char *const pat, ...) { dTHX; va_list args; + + PERL_ARGS_ASSERT_SV_CATPVF_MG_NOCONTEXT; + va_start(args, pat); sv_vcatpvf_mg(sv, pat, &args); va_end(args); @@ -8403,9 +8727,12 @@ valid UTF-8; if the original SV was bytes, the pattern should be too. =cut */ void -Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) +Perl_sv_catpvf(pTHX_ SV *const sv, const char *const pat, ...) { va_list args; + + PERL_ARGS_ASSERT_SV_CATPVF; + va_start(args, pat); sv_vcatpvf(sv, pat, &args); va_end(args); @@ -8423,8 +8750,10 @@ Usually used via its frontend C. */ void -Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) +Perl_sv_vcatpvf(pTHX_ SV *const sv, const char *const pat, va_list *const args) { + PERL_ARGS_ASSERT_SV_VCATPVF; + sv_vcatpvfn(sv, pat, strlen(pat), args, NULL, 0, NULL); } @@ -8437,9 +8766,12 @@ Like C, but also handles 'set' magic. */ void -Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) +Perl_sv_catpvf_mg(pTHX_ SV *const sv, const char *const pat, ...) { va_list args; + + PERL_ARGS_ASSERT_SV_CATPVF_MG; + va_start(args, pat); sv_vcatpvf_mg(sv, pat, &args); va_end(args); @@ -8456,8 +8788,10 @@ Usually used via its frontend C. */ void -Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) +Perl_sv_vcatpvf_mg(pTHX_ SV *const sv, const char *const pat, va_list *const args) { + PERL_ARGS_ASSERT_SV_VCATPVF_MG; + sv_vcatpvfn(sv, pat, strlen(pat), args, NULL, 0, NULL); SvSETMAGIC(sv); } @@ -8474,17 +8808,23 @@ Usually used via one of its frontends C and C. */ void -Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) +Perl_sv_vsetpvfn(pTHX_ SV *const sv, const char *const pat, const STRLEN patlen, + va_list *const args, SV **const svargs, const I32 svmax, bool *const maybe_tainted) { + PERL_ARGS_ASSERT_SV_VSETPVFN; + sv_setpvn(sv, "", 0); sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); } STATIC I32 -S_expect_number(pTHX_ char** pattern) +S_expect_number(pTHX_ char **const pattern) { dVAR; I32 var = 0; + + PERL_ARGS_ASSERT_EXPECT_NUMBER; + switch (**pattern) { case '1': case '2': case '3': case '4': case '5': case '6': @@ -8501,11 +8841,13 @@ S_expect_number(pTHX_ char** pattern) } STATIC char * -S_F0convert(NV nv, char *endbuf, STRLEN *len) +S_F0convert(NV nv, char *const endbuf, STRLEN *const len) { const int neg = nv < 0; UV uv; + PERL_ARGS_ASSERT_F0CONVERT; + if (neg) nv = -nv; if (nv < UV_MAX) { @@ -8549,7 +8891,8 @@ Usually used via one of its frontends C and C. /* XXX maybe_tainted is never assigned to, so the doc above is lying. */ void -Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) +Perl_sv_vcatpvfn(pTHX_ SV *const sv, const char *const pat, const STRLEN patlen, + va_list *const args, SV **const svargs, const I32 svmax, bool *const maybe_tainted) { dVAR; char *p; @@ -8569,6 +8912,7 @@ Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV /* large enough for "%#.#f" --chip */ /* what about long double NVs? --jhi */ + PERL_ARGS_ASSERT_SV_VCATPVFN; PERL_UNUSED_ARG(maybe_tainted); /* no matter what, this is a string now */ @@ -9657,10 +10001,12 @@ ptr_table_* functions. /* clone a parser */ yy_parser * -Perl_parser_dup(pTHX_ const yy_parser *proto, CLONE_PARAMS* param) +Perl_parser_dup(pTHX_ const yy_parser *const proto, CLONE_PARAMS *const param) { yy_parser *parser; + PERL_ARGS_ASSERT_PARSER_DUP; + if (!proto) return NULL; @@ -9774,10 +10120,11 @@ Perl_parser_dup(pTHX_ const yy_parser *proto, CLONE_PARAMS* param) /* duplicate a file handle */ PerlIO * -Perl_fp_dup(pTHX_ PerlIO *fp, char type, CLONE_PARAMS *param) +Perl_fp_dup(pTHX_ PerlIO *const fp, const char type, CLONE_PARAMS *const param) { PerlIO *ret; + PERL_ARGS_ASSERT_FP_DUP; PERL_UNUSED_ARG(type); if (!fp) @@ -9797,7 +10144,7 @@ Perl_fp_dup(pTHX_ PerlIO *fp, char type, CLONE_PARAMS *param) /* duplicate a directory handle */ DIR * -Perl_dirp_dup(pTHX_ DIR *dp) +Perl_dirp_dup(pTHX_ DIR *const dp) { PERL_UNUSED_CONTEXT; if (!dp) @@ -9809,10 +10156,12 @@ Perl_dirp_dup(pTHX_ DIR *dp) /* duplicate a typeglob */ GP * -Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) +Perl_gp_dup(pTHX_ GP *const gp, CLONE_PARAMS *const param) { GP *ret; + PERL_ARGS_ASSERT_GP_DUP; + if (!gp) return (GP*)NULL; /* look for it in the table first */ @@ -9842,10 +10191,13 @@ Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) /* duplicate a chain of magic */ MAGIC * -Perl_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS* param) +Perl_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS *const param) { MAGIC *mgprev = (MAGIC*)NULL; MAGIC *mgret; + + PERL_ARGS_ASSERT_MG_DUP; + if (!mg) return (MAGIC*)NULL; /* look for it in the table first */ @@ -9938,10 +10290,13 @@ Perl_ptr_table_new(pTHX) /* map an existing pointer using a table */ STATIC PTR_TBL_ENT_t * -S_ptr_table_find(PTR_TBL_t *tbl, const void *sv) { +S_ptr_table_find(PTR_TBL_t *const tbl, const void *const sv) +{ PTR_TBL_ENT_t *tblent; const UV hash = PTR_TABLE_HASH(sv); - assert(tbl); + + PERL_ARGS_ASSERT_PTR_TABLE_FIND; + tblent = tbl->tbl_ary[hash & tbl->tbl_max]; for (; tblent; tblent = tblent->next) { if (tblent->oldval == sv) @@ -9951,19 +10306,24 @@ S_ptr_table_find(PTR_TBL_t *tbl, const void *sv) { } void * -Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, const void *sv) +Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *const tbl, const void *const sv) { PTR_TBL_ENT_t const *const tblent = ptr_table_find(tbl, sv); + + PERL_ARGS_ASSERT_PTR_TABLE_FETCH; PERL_UNUSED_CONTEXT; + return tblent ? tblent->newval : NULL; } /* add a new entry to a pointer-mapping table */ void -Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, const void *oldsv, void *newsv) +Perl_ptr_table_store(pTHX_ PTR_TBL_t *const tbl, const void *const oldsv, void *const newsv) { PTR_TBL_ENT_t *tblent = ptr_table_find(tbl, oldsv); + + PERL_ARGS_ASSERT_PTR_TABLE_STORE; PERL_UNUSED_CONTEXT; if (tblent) { @@ -9986,12 +10346,14 @@ Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, const void *oldsv, void *newsv) /* double the hash bucket size of an existing ptr table */ void -Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) +Perl_ptr_table_split(pTHX_ PTR_TBL_t *const tbl) { PTR_TBL_ENT_t **ary = tbl->tbl_ary; const UV oldsize = tbl->tbl_max + 1; UV newsize = oldsize * 2; UV i; + + PERL_ARGS_ASSERT_PTR_TABLE_SPLIT; PERL_UNUSED_CONTEXT; Renew(ary, newsize, PTR_TBL_ENT_t*); @@ -10019,7 +10381,7 @@ Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) /* remove all the entries from a ptr table */ void -Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) +Perl_ptr_table_clear(pTHX_ PTR_TBL_t *const tbl) { if (tbl && tbl->tbl_items) { register PTR_TBL_ENT_t * const * const array = tbl->tbl_ary; @@ -10042,7 +10404,7 @@ Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) /* clear and free a ptr table */ void -Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) +Perl_ptr_table_free(pTHX_ PTR_TBL_t *const tbl) { if (!tbl) { return; @@ -10055,8 +10417,10 @@ Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) #if defined(USE_ITHREADS) void -Perl_rvpv_dup(pTHX_ SV *dstr, const SV *sstr, CLONE_PARAMS* param) +Perl_rvpv_dup(pTHX_ SV *const dstr, const SV *const sstr, CLONE_PARAMS *const param) { + PERL_ARGS_ASSERT_RVPV_DUP; + if (SvROK(sstr)) { SvRV_set(dstr, SvWEAKREF(sstr) ? sv_dup(SvRV(sstr), param) @@ -10101,13 +10465,21 @@ Perl_rvpv_dup(pTHX_ SV *dstr, const SV *sstr, CLONE_PARAMS* param) /* duplicate an SV of any type (including AV, HV etc) */ SV * -Perl_sv_dup(pTHX_ const SV *sstr, CLONE_PARAMS* param) +Perl_sv_dup(pTHX_ const SV *const sstr, CLONE_PARAMS *const param) { dVAR; SV *dstr; - if (!sstr || SvTYPE(sstr) == SVTYPEMASK) + PERL_ARGS_ASSERT_SV_DUP; + + if (!sstr) + return NULL; + if (SvTYPE(sstr) == SVTYPEMASK) { +#ifdef DEBUG_LEAKING_SCALARS_ABORT + abort(); +#endif return NULL; + } /* look for it in the table first */ dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); if (dstr) @@ -10251,7 +10623,7 @@ Perl_sv_dup(pTHX_ const SV *sstr, CLONE_PARAMS* param) break; case SVt_REGEXP: /* FIXME for plugins */ - re_dup_guts(sstr, dstr, param); + re_dup_guts((REGEXP*) sstr, (REGEXP*) dstr, param); break; case SVt_PVLV: /* XXX LvTARGOFF sometimes holds PMOP* when DEBUGGING */ @@ -10428,6 +10800,8 @@ Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) { PERL_CONTEXT *ncxs; + PERL_ARGS_ASSERT_CX_DUP; + if (!cxs) return (PERL_CONTEXT*)NULL; @@ -10437,69 +10811,63 @@ Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) return ncxs; /* create anew and remember what it is */ - Newxz(ncxs, max + 1, PERL_CONTEXT); + Newx(ncxs, max + 1, PERL_CONTEXT); ptr_table_store(PL_ptr_table, cxs, ncxs); + Copy(cxs, ncxs, max + 1, PERL_CONTEXT); while (ix >= 0) { - PERL_CONTEXT * const cx = &cxs[ix]; PERL_CONTEXT * const ncx = &ncxs[ix]; - ncx->cx_type = cx->cx_type; - if (CxTYPE(cx) == CXt_SUBST) { + if (CxTYPE(ncx) == CXt_SUBST) { Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); } else { - ncx->blk_oldsp = cx->blk_oldsp; - ncx->blk_oldcop = cx->blk_oldcop; - ncx->blk_oldmarksp = cx->blk_oldmarksp; - ncx->blk_oldscopesp = cx->blk_oldscopesp; - ncx->blk_oldpm = cx->blk_oldpm; - ncx->blk_gimme = cx->blk_gimme; - switch (CxTYPE(cx)) { + switch (CxTYPE(ncx)) { case CXt_SUB: - ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 - ? cv_dup_inc(cx->blk_sub.cv, param) - : cv_dup(cx->blk_sub.cv,param)); - ncx->blk_sub.argarray = (cx->blk_sub.hasargs - ? av_dup_inc(cx->blk_sub.argarray, param) + ncx->blk_sub.cv = (ncx->blk_sub.olddepth == 0 + ? cv_dup_inc(ncx->blk_sub.cv, param) + : cv_dup(ncx->blk_sub.cv,param)); + ncx->blk_sub.argarray = (CxHASARGS(ncx) + ? av_dup_inc(ncx->blk_sub.argarray, + param) : NULL); - ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); - ncx->blk_sub.olddepth = cx->blk_sub.olddepth; - ncx->blk_sub.hasargs = cx->blk_sub.hasargs; - ncx->blk_sub.lval = cx->blk_sub.lval; - ncx->blk_sub.retop = cx->blk_sub.retop; + ncx->blk_sub.savearray = av_dup_inc(ncx->blk_sub.savearray, + param); ncx->blk_sub.oldcomppad = (PAD*)ptr_table_fetch(PL_ptr_table, - cx->blk_sub.oldcomppad); + ncx->blk_sub.oldcomppad); break; case CXt_EVAL: - ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; - ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; - ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param); - ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; - ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); - ncx->blk_eval.retop = cx->blk_eval.retop; + ncx->blk_eval.old_namesv = sv_dup_inc(ncx->blk_eval.old_namesv, + param); + ncx->blk_eval.cur_text = sv_dup(ncx->blk_eval.cur_text, param); break; - case CXt_LOOP: - ncx->blk_loop.label = cx->blk_loop.label; - ncx->blk_loop.resetsp = cx->blk_loop.resetsp; - ncx->blk_loop.my_op = cx->blk_loop.my_op; - ncx->blk_loop.iterdata = (CxPADLOOP(cx) - ? cx->blk_loop.iterdata - : gv_dup((GV*)cx->blk_loop.iterdata, param)); - ncx->blk_loop.oldcomppad - = (PAD*)ptr_table_fetch(PL_ptr_table, - cx->blk_loop.oldcomppad); - ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); - ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); - ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); - ncx->blk_loop.iterix = cx->blk_loop.iterix; - ncx->blk_loop.itermax = cx->blk_loop.itermax; + case CXt_LOOP_LAZYSV: + ncx->blk_loop.state_u.lazysv.end + = sv_dup_inc(ncx->blk_loop.state_u.lazysv.end, param); + /* We are taking advantage of av_dup_inc and sv_dup_inc + actually being the same function, and order equivalance of + the two unions. + We can assert the later [but only at run time :-(] */ + assert ((void *) &ncx->blk_loop.state_u.ary.ary == + (void *) &ncx->blk_loop.state_u.lazysv.cur); + case CXt_LOOP_FOR: + ncx->blk_loop.state_u.ary.ary + = av_dup_inc(ncx->blk_loop.state_u.ary.ary, param); + case CXt_LOOP_LAZYIV: + case CXt_LOOP_PLAIN: + if (CxPADLOOP(ncx)) { + ncx->blk_loop.oldcomppad + = (PAD*)ptr_table_fetch(PL_ptr_table, + ncx->blk_loop.oldcomppad); + } else { + ncx->blk_loop.oldcomppad + = (PAD*)gv_dup((GV*)ncx->blk_loop.oldcomppad, param); + } break; case CXt_FORMAT: - ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); - ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); - ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); - ncx->blk_sub.hasargs = cx->blk_sub.hasargs; - ncx->blk_sub.retop = cx->blk_sub.retop; + ncx->blk_format.cv = cv_dup(ncx->blk_format.cv, param); + ncx->blk_format.gv = gv_dup(ncx->blk_format.gv, param); + ncx->blk_format.dfoutgv = gv_dup_inc(ncx->blk_format.dfoutgv, + param); break; case CXt_BLOCK: case CXt_NULL: @@ -10518,6 +10886,8 @@ Perl_si_dup(pTHX_ PERL_SI *si, CLONE_PARAMS* param) { PERL_SI *nsi; + PERL_ARGS_ASSERT_SI_DUP; + if (!si) return (PERL_SI*)NULL; @@ -10571,6 +10941,8 @@ Perl_any_dup(pTHX_ void *v, const PerlInterpreter *proto_perl) { void *ret; + PERL_ARGS_ASSERT_ANY_DUP; + if (!v) return (void*)NULL; @@ -10613,6 +10985,8 @@ Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) void (*dptr) (void*); void (*dxptr) (pTHX_ void*); + PERL_ARGS_ASSERT_SS_DUP; + Newxz(nss, max, ANY); while (ix > 0) { @@ -10802,13 +11176,13 @@ Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) TOPPTR(nss,ix) = hv_dup_inc(hv, param); } break; - case SAVEt_PADSV: + case SAVEt_PADSV_AND_MORTALIZE: longval = (long)POPLONG(ss,ix); TOPLONG(nss,ix) = longval; ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); sv = (SV*)POPPTR(ss,ix); - TOPPTR(nss,ix) = sv_dup(sv, param); + TOPPTR(nss,ix) = sv_dup_inc(sv, param); break; case SAVEt_BOOL: ptr = POPPTR(ss,ix); @@ -10908,7 +11282,7 @@ Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) * so we know which stashes want their objects cloned */ static void -do_mark_cloneable_stash(pTHX_ SV *sv) +do_mark_cloneable_stash(pTHX_ SV *const sv) { const HEK * const hvname = HvNAME_HEK((HV*)sv); if (hvname) { @@ -10984,6 +11358,8 @@ perl_clone(PerlInterpreter *proto_perl, UV flags) dVAR; #ifdef PERL_IMPLICIT_SYS + PERL_ARGS_ASSERT_PERL_CLONE; + /* perlhost.h so we need to call into it to clone the host, CPerlHost should have a c interface, sky */ @@ -11019,6 +11395,9 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, CLONE_PARAMS* const param = &clone_params; PerlInterpreter * const my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); + + PERL_ARGS_ASSERT_PERL_CLONE_USING; + /* for each stash, determine whether its objects should be cloned */ S_visit(proto_perl, do_mark_cloneable_stash, SVt_PVHV, SVTYPEMASK); PERL_SET_THX(my_perl); @@ -11054,6 +11433,9 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, CLONE_PARAMS clone_params; CLONE_PARAMS* param = &clone_params; PerlInterpreter * const my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); + + PERL_ARGS_ASSERT_PERL_CLONE; + /* for each stash, determine whether its objects should be cloned */ S_visit(proto_perl, do_mark_cloneable_stash, SVt_PVHV, SVTYPEMASK); PERL_SET_THX(my_perl); @@ -11188,7 +11570,6 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); PL_localpatches = proto_perl->Ilocalpatches; PL_splitstr = proto_perl->Isplitstr; - PL_preprocess = proto_perl->Ipreprocess; PL_minus_n = proto_perl->Iminus_n; PL_minus_p = proto_perl->Iminus_p; PL_minus_l = proto_perl->Iminus_l; @@ -11231,31 +11612,11 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, PL_regmatch_slab = NULL; /* Clone the regex array */ - PL_regex_padav = newAV(); - { - const I32 len = av_len((AV*)proto_perl->Iregex_padav); - SV* const * const regexen = AvARRAY((AV*)proto_perl->Iregex_padav); - IV i; - av_push(PL_regex_padav, sv_dup_inc_NN(regexen[0],param)); - for(i = 1; i <= len; i++) { - const SV * const regex = regexen[i]; - /* FIXME for plugins - newSViv(PTR2IV(CALLREGDUPE( - INT2PTR(REGEXP *, SvIVX(regex)), param)))) - */ - /* And while we're at it, can we FIXME on the whole hiding - pointer inside an IV hack? */ - SV * const sv = - SvREPADTMP(regex) - ? sv_dup_inc(regex, param) - : SvREFCNT_inc( - newSViv(PTR2IV(sv_dup_inc(INT2PTR(REGEXP *, SvIVX(regex)), param)))) - ; - if (SvFLAGS(regex) & SVf_BREAK) - SvFLAGS(sv) |= SVf_BREAK; /* unrefcnted PL_curpm */ - av_push(PL_regex_padav, sv); - } - } + /* ORANGE FIXME for plugins, probably in the SV dup code. + newSViv(PTR2IV(CALLREGDUPE( + INT2PTR(REGEXP *, SvIVX(regex)), param)))) + */ + PL_regex_padav = av_dup_inc(proto_perl->Iregex_padav, param); PL_regex_pad = AvARRAY(PL_regex_padav); /* shortcuts to various I/O objects */ @@ -11719,6 +12080,9 @@ char * Perl_sv_recode_to_utf8(pTHX_ SV *sv, SV *encoding) { dVAR; + + PERL_ARGS_ASSERT_SV_RECODE_TO_UTF8; + if (SvPOK(sv) && !SvUTF8(sv) && !IN_BYTES && SvROK(encoding)) { SV *uni; STRLEN len; @@ -11781,6 +12145,9 @@ Perl_sv_cat_decode(pTHX_ SV *dsv, SV *encoding, { dVAR; bool ret = FALSE; + + PERL_ARGS_ASSERT_SV_CAT_DECODE; + if (SvPOK(ssv) && SvPOK(dsv) && SvROK(encoding) && offset) { SV *offsv; dSP; @@ -11830,6 +12197,8 @@ S_find_hash_subscript(pTHX_ HV *hv, SV* val) register HE **array; I32 i; + PERL_ARGS_ASSERT_FIND_HASH_SUBSCRIPT; + if (!hv || SvMAGICAL(hv) || !HvARRAY(hv) || (HvTOTALKEYS(hv) > FUV_MAX_SEARCH_SIZE)) return NULL; @@ -11861,6 +12230,9 @@ STATIC I32 S_find_array_subscript(pTHX_ AV *av, SV* val) { dVAR; + + PERL_ARGS_ASSERT_FIND_ARRAY_SUBSCRIPT; + if (!av || SvMAGICAL(av) || !AvARRAY(av) || (AvFILLp(av) > FUV_MAX_SEARCH_SIZE)) return -1; @@ -12200,6 +12572,7 @@ S_find_uninit_var(pTHX_ OP* obase, SV* uninit_sv, bool match) goto do_op2; + case OP_ENTEREVAL: /* could be eval $undef or $x='$undef'; eval $x */ case OP_RV2SV: case OP_CUSTOM: match = 1; /* XS or custom code could trigger random warnings */