X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/35ade292f2ece2926aa263efd6269babc55a7f74..f1791e53cb2920e7259f77ab71f78f70e73e7968:/sv.c diff --git a/sv.c b/sv.c index 3aa9108..2a92ba3 100644 --- a/sv.c +++ b/sv.c @@ -35,13 +35,13 @@ * lib/utf8.t lib/Unicode/Collate/t/index.t * --jhi */ -#define ASSERT_UTF8_CACHE(cache) \ +# define ASSERT_UTF8_CACHE(cache) \ STMT_START { if (cache) { assert((cache)[0] <= (cache)[1]); \ assert((cache)[2] <= (cache)[3]); \ assert((cache)[3] <= (cache)[1]);} \ } STMT_END #else -#define ASSERT_UTF8_CACHE(cache) NOOP +# define ASSERT_UTF8_CACHE(cache) NOOP #endif #ifdef PERL_OLD_COPY_ON_WRITE @@ -190,10 +190,10 @@ Perl_offer_nice_chunk(pTHX_ void *chunk, U32 chunk_size) # define SvARENA_CHAIN(sv) ((sv)->sv_u.svu_rv) /* Whilst I'd love to do this, it seems that things like to check on unreferenced scalars -# define POSION_SV_HEAD(sv) Poison(sv, 1, struct STRUCT_SV) +# define POSION_SV_HEAD(sv) PoisonNew(sv, 1, struct STRUCT_SV) */ -# define POSION_SV_HEAD(sv) Poison(&SvANY(sv), 1, void *), \ - Poison(&SvREFCNT(sv), 1, U32) +# define POSION_SV_HEAD(sv) PoisonNew(&SvANY(sv), 1, void *), \ + PoisonNew(&SvREFCNT(sv), 1, U32) #else # define SvARENA_CHAIN(sv) SvANY(sv) # define POSION_SV_HEAD(sv) @@ -678,6 +678,7 @@ Perl_sv_free_arenas(pTHX) void* Perl_get_arena(pTHX_ int arena_size) { + dVAR; struct arena_desc* adesc; struct arena_set *newroot, **aroot = (struct arena_set**) &PL_body_arenas; int curr; @@ -692,7 +693,7 @@ Perl_get_arena(pTHX_ int arena_size) newroot->set_size = ARENAS_PER_SET; newroot->next = *aroot; *aroot = newroot; - DEBUG_m(PerlIO_printf(Perl_debug_log, "new arenaset %p\n", *aroot)); + DEBUG_m(PerlIO_printf(Perl_debug_log, "new arenaset %p\n", (void*)*aroot)); } /* ok, now have arena-set with at least 1 empty/available arena-desc */ @@ -1031,7 +1032,7 @@ static const struct body_details bodies_by_type[] = { #define new_NOARENAZ(details) \ my_safecalloc((details)->body_size + (details)->offset) -#ifdef DEBUGGING +#if defined(DEBUGGING) && !defined(PERL_GLOBAL_STRUCT_PRIVATE) static bool done_sanity_check; #endif @@ -1047,7 +1048,9 @@ S_more_bodies (pTHX_ svtype sv_type) assert(bdp->arena_size); -#ifdef DEBUGGING +#if defined(DEBUGGING) && !defined(PERL_GLOBAL_STRUCT_PRIVATE) + /* PERL_GLOBAL_STRUCT_PRIVATE cannot coexist with global + * variables like done_sanity_check. */ if (!done_sanity_check) { unsigned int i = SVt_LAST; @@ -1065,8 +1068,9 @@ S_more_bodies (pTHX_ svtype sv_type) /* computed count doesnt reflect the 1st slot reservation */ DEBUG_m(PerlIO_printf(Perl_debug_log, "arena %p end %p arena-size %d type %d size %d ct %d\n", - start, end, bdp->arena_size, sv_type, body_size, - bdp->arena_size / body_size)); + start, end, + (int)bdp->arena_size, sv_type, (int)body_size, + (int)bdp->arena_size / (int)body_size)); *root = (void *)start; @@ -1088,8 +1092,8 @@ S_more_bodies (pTHX_ svtype sv_type) STMT_START { \ void ** const r3wt = &PL_body_roots[sv_type]; \ LOCK_SV_MUTEX; \ - xpv = *((void **)(r3wt)) \ - ? *((void **)(r3wt)) : S_more_bodies(aTHX_ sv_type); \ + xpv = (PTR_TBL_ENT_t*) (*((void **)(r3wt)) \ + ? *((void **)(r3wt)) : more_bodies(sv_type)); \ *(r3wt) = *(void**)(xpv); \ UNLOCK_SV_MUTEX; \ } STMT_END @@ -1118,12 +1122,12 @@ You generally want to use the C macro wrapper. See also C. */ void -Perl_sv_upgrade(pTHX_ register SV *sv, U32 new_type) +Perl_sv_upgrade(pTHX_ register SV *sv, svtype new_type) { dVAR; void* old_body; void* new_body; - const U32 old_type = SvTYPE(sv); + const svtype old_type = SvTYPE(sv); const struct body_details *new_type_details; const struct body_details *const old_type_details = bodies_by_type + old_type; @@ -1319,7 +1323,7 @@ Perl_sv_upgrade(pTHX_ register SV *sv, U32 new_type) int length = old_type_details->copy; if (new_type_details->offset > old_type_details->offset) { - int difference + const int difference = new_type_details->offset - old_type_details->offset; offset += difference; length -= difference; @@ -1446,10 +1450,10 @@ Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) return s; } else #endif - s = saferealloc(s, newlen); + s = (char*)saferealloc(s, newlen); } else { - s = safemalloc(newlen); + s = (char*)safemalloc(newlen); if (SvPVX_const(sv) && SvCUR(sv)) { Move(SvPVX_const(sv), s, (newlen < SvCUR(sv)) ? newlen : SvCUR(sv), char); } @@ -1494,6 +1498,7 @@ Perl_sv_setiv(pTHX_ register SV *sv, IV i) case SVt_PVIO: Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), OP_DESC(PL_op)); + default: NOOP; } (void)SvIOK_only(sv); /* validate number */ SvIV_set(sv, i); @@ -1594,6 +1599,7 @@ Perl_sv_setnv(pTHX_ register SV *sv, NV num) case SVt_PVIO: Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), OP_NAME(PL_op)); + default: NOOP; } SvNV_set(sv, num); (void)SvNOK_only(sv); /* validate number */ @@ -1717,8 +1723,29 @@ Perl_looks_like_number(pTHX_ SV *sv) return grok_number(sbegin, len, NULL); } +STATIC bool +S_glob_2number(pTHX_ GV * const gv) +{ + const U32 wasfake = SvFLAGS(gv) & SVf_FAKE; + SV *const buffer = sv_newmortal(); + + /* FAKE globs can get coerced, so need to turn this off temporarily if it + is on. */ + SvFAKE_off(gv); + gv_efullname3(buffer, gv, "*"); + SvFLAGS(gv) |= wasfake; + + /* We know that all GVs stringify to something that is not-a-number, + so no need to test that. */ + if (ckWARN(WARN_NUMERIC)) + not_a_number(buffer); + /* We just want something true to return, so that S_sv_2iuv_common + can tail call us and return true. */ + return TRUE; +} + STATIC char * -S_glob_2inpuv(pTHX_ GV *gv, STRLEN *len, bool want_number) +S_glob_2pv(pTHX_ GV * const gv, STRLEN * const len) { const U32 wasfake = SvFLAGS(gv) & SVf_FAKE; SV *const buffer = sv_newmortal(); @@ -1729,17 +1756,11 @@ S_glob_2inpuv(pTHX_ GV *gv, STRLEN *len, bool want_number) gv_efullname3(buffer, gv, "*"); SvFLAGS(gv) |= wasfake; - if (want_number) { - /* We know that all GVs stringify to something that is not-a-number, - so no need to test that. */ - if (ckWARN(WARN_NUMERIC)) - not_a_number(buffer); - /* We just want something true to return, so that S_sv_2iuv_common - can tail call us and return true. */ - return (char *) 1; - } else { - return SvPV(buffer, *len); + assert(SvPOK(buffer)); + if (len) { + *len = SvCUR(buffer); } + return SvPVX(buffer); } /* Actually, ISO C leaves conversion of UV to IV undefined, but @@ -1830,6 +1851,7 @@ STATIC int S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) { dVAR; + PERL_UNUSED_ARG(numtype); /* Used only under DEBUGGING? */ 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); @@ -2050,7 +2072,7 @@ S_sv_2iuv_common(pTHX_ SV *sv) { if ((NV)(SvIVX(sv)) == SvNVX(sv)) { SvIOK_on(sv); } else { - /*EMPTY*/; /* Integer is imprecise. NOK, IOKp */ + NOOP; /* Integer is imprecise. NOK, IOKp */ } /* UV will not work better than IV */ } else { @@ -2065,7 +2087,7 @@ S_sv_2iuv_common(pTHX_ SV *sv) { if ((NV)(SvUVX(sv)) == SvNVX(sv)) { SvIOK_on(sv); } else { - /*EMPTY*/; /* Integer is imprecise. NOK, IOKp, is UV */ + NOOP; /* Integer is imprecise. NOK, IOKp, is UV */ } } SvIsUV_on(sv); @@ -2109,9 +2131,8 @@ S_sv_2iuv_common(pTHX_ SV *sv) { } } else { - if (isGV_with_GP(sv)) { - return (bool)PTR2IV(glob_2inpuv((GV *)sv, NULL, TRUE)); - } + if (isGV_with_GP(sv)) + return glob_2number((GV *)sv); if (!(SvFLAGS(sv) & SVs_PADTMP)) { if (!PL_localizing && ckWARN(WARN_UNINITIALIZED)) @@ -2461,7 +2482,7 @@ Perl_sv_2nv(pTHX_ register SV *sv) } else { if (isGV_with_GP(sv)) { - glob_2inpuv((GV *)sv, NULL, TRUE); + glob_2number((GV *)sv); return 0.0; } @@ -2644,8 +2665,9 @@ Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) STRLEN len; if (SvIOKp(sv)) { - len = SvIsUV(sv) ? my_sprintf(tbuf,"%"UVuf, (UV)SvUVX(sv)) - : my_sprintf(tbuf,"%"IVdf, (IV)SvIVX(sv)); + len = SvIsUV(sv) + ? my_snprintf(tbuf, sizeof(tbuf), "%"UVuf, (UV)SvUVX(sv)) + : my_snprintf(tbuf, sizeof(tbuf), "%"IVdf, (IV)SvIVX(sv)); } else { Gconvert(SvNVX(sv), NV_DIG, 0, tbuf); len = strlen(tbuf); @@ -2667,7 +2689,7 @@ Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) s = SvGROW_mutable(sv, len + 1); SvCUR_set(sv, len); SvPOKp_on(sv); - return memcpy(s, tbuf, len + 1); + return (char*)memcpy(s, tbuf, len + 1); } } if (SvROK(sv)) { @@ -2707,12 +2729,15 @@ Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) } } { - SV *tsv; + STRLEN len; + char *retval; + char *buffer; MAGIC *mg; const SV *const referent = (SV*)SvRV(sv); if (!referent) { - tsv = sv_2mortal(newSVpvs("NULLREF")); + len = 7; + retval = buffer = savepvn("NULLREF", len); } else if (SvTYPE(referent) == SVt_PVMG && ((SvFLAGS(referent) & (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) @@ -2721,21 +2746,66 @@ Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) return stringify_regexp(sv, mg, lp); } else { const char *const typestr = sv_reftype(referent, 0); + const STRLEN typelen = strlen(typestr); + UV addr = PTR2UV(referent); + const char *stashname = NULL; + STRLEN stashnamelen = 0; /* hush, gcc */ + const char *buffer_end; - tsv = sv_newmortal(); if (SvOBJECT(referent)) { - const char *const name = HvNAME_get(SvSTASH(referent)); - Perl_sv_setpvf(aTHX_ tsv, "%s=%s(0x%"UVxf")", - name ? name : "__ANON__" , typestr, - PTR2UV(referent)); + const HEK *const name = HvNAME_HEK(SvSTASH(referent)); + + if (name) { + stashname = HEK_KEY(name); + stashnamelen = HEK_LEN(name); + + if (HEK_UTF8(name)) { + SvUTF8_on(sv); + } else { + SvUTF8_off(sv); + } + } else { + stashname = "__ANON__"; + stashnamelen = 8; + } + len = stashnamelen + 1 /* = */ + typelen + 3 /* (0x */ + + 2 * sizeof(UV) + 2 /* )\0 */; + } else { + len = typelen + 3 /* (0x */ + + 2 * sizeof(UV) + 2 /* )\0 */; } - else - Perl_sv_setpvf(aTHX_ tsv, "%s(0x%"UVxf")", typestr, - PTR2UV(referent)); + + Newx(buffer, len, char); + buffer_end = retval = buffer + len; + + /* Working backwards */ + *--retval = '\0'; + *--retval = ')'; + do { + *--retval = PL_hexdigit[addr & 15]; + } while (addr >>= 4); + *--retval = 'x'; + *--retval = '0'; + *--retval = '('; + + retval -= typelen; + memcpy(retval, typestr, typelen); + + if (stashname) { + *--retval = '='; + retval -= stashnamelen; + memcpy(retval, stashname, stashnamelen); + } + /* retval may not neccesarily have reached the start of the + buffer here. */ + assert (retval >= buffer); + + len = buffer_end - retval - 1; /* -1 for that \0 */ } if (lp) - *lp = SvCUR(tsv); - return SvPVX(tsv); + *lp = len; + SAVEFREEPV(buffer); + return retval; } } if (SvREADONLY(sv) && !SvOK(sv)) { @@ -2779,7 +2849,7 @@ Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) /* some Xenix systems wipe out errno here */ #ifdef apollo if (SvNVX(sv) == 0.0) - (void)strcpy(s,"0"); + my_strlcpy(s, "0", SvLEN(sv)); else #endif /*apollo*/ { @@ -2788,7 +2858,7 @@ Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) errno = olderrno; #ifdef FIXNEGATIVEZERO if (*s == '-' && s[1] == '0' && !s[2]) - strcpy(s,"0"); + my_strlcpy(s, "0", SvLEN(s)); #endif while (*s) s++; #ifdef hcx @@ -2797,9 +2867,8 @@ Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) #endif } else { - if (isGV_with_GP(sv)) { - return glob_2inpuv((GV *)sv, lp, FALSE); - } + if (isGV_with_GP(sv)) + return glob_2pv((GV *)sv, lp); if (!PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP) && ckWARN(WARN_UNINITIALIZED)) report_uninit(sv); @@ -3080,13 +3149,13 @@ flag off so that it looks like octets again. void Perl_sv_utf8_encode(pTHX_ register SV *sv) { - (void) sv_utf8_upgrade(sv); if (SvIsCOW(sv)) { sv_force_normal_flags(sv, 0); } if (SvREADONLY(sv)) { Perl_croak(aTHX_ PL_no_modify); } + (void) sv_utf8_upgrade(sv); SvUTF8_off(sv); } @@ -3283,7 +3352,7 @@ S_glob_assign_ref(pTHX_ SV *dstr, SV *sstr) { it was a const and its value changed. */ if (CvCONST(cv) && CvCONST((CV*)sref) && cv_const_sv(cv) == cv_const_sv((CV*)sref)) { - /*EMPTY*/ + NOOP; /* They are 2 constant subroutines generated from the same constant. This probably means that they are really the "same" proxy subroutine @@ -3297,16 +3366,18 @@ S_glob_assign_ref(pTHX_ SV *dstr, SV *sstr) { || sv_cmp(cv_const_sv(cv), cv_const_sv((CV*)sref))))) { Perl_warner(aTHX_ packWARN(WARN_REDEFINE), - CvCONST(cv) - ? "Constant subroutine %s::%s redefined" - : "Subroutine %s::%s redefined", + (const char *) + (CvCONST(cv) + ? "Constant subroutine %s::%s redefined" + : "Subroutine %s::%s redefined"), HvNAME_get(GvSTASH((GV*)dstr)), GvENAME((GV*)dstr)); } } if (!intro) - cv_ckproto(cv, (GV*)dstr, - SvPOK(sref) ? SvPVX_const(sref) : NULL); + cv_ckproto_len(cv, (GV*)dstr, + SvPOK(sref) ? SvPVX_const(sref) : NULL, + SvPOK(sref) ? SvCUR(sref) : 0); } GvCVGEN(dstr) = 0; /* Switch off cacheness. */ GvASSUMECV_on(dstr); @@ -3331,13 +3402,22 @@ Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) dVAR; register U32 sflags; register int dtype; - register int stype; + register svtype stype; if (sstr == dstr) return; + + if (SvIS_FREED(dstr)) { + Perl_croak(aTHX_ "panic: attempt to copy value %" SVf + " to a freed scalar %p", sstr, dstr); + } SV_CHECK_THINKFIRST_COW_DROP(dstr); if (!sstr) sstr = &PL_sv_undef; + if (SvIS_FREED(sstr)) { + Perl_croak(aTHX_ "panic: attempt to copy freed scalar %p to %p", sstr, + dstr); + } stype = SvTYPE(sstr); dtype = SvTYPE(dstr); @@ -3445,7 +3525,7 @@ Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) case SVt_PVGV: if (dtype <= SVt_PVGV) { - S_glob_assign_glob(aTHX_ dstr, sstr, dtype); + glob_assign_glob(dstr, sstr, dtype); return; } /*FALLTHROUGH*/ @@ -3455,10 +3535,10 @@ Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) case SVt_PVBM: if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { mg_get(sstr); - if ((int)SvTYPE(sstr) != stype) { + if (SvTYPE(sstr) != stype) { stype = SvTYPE(sstr); if (stype == SVt_PVGV && dtype <= SVt_PVGV) { - S_glob_assign_glob(aTHX_ dstr, sstr, dtype); + glob_assign_glob(dstr, sstr, dtype); return; } } @@ -3466,7 +3546,7 @@ Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) if (stype == SVt_PVLV) SvUPGRADE(dstr, SVt_PVNV); else - SvUPGRADE(dstr, (U32)stype); + SvUPGRADE(dstr, (svtype)stype); } /* dstr may have been upgraded. */ @@ -3486,13 +3566,13 @@ Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) GvMULTI_on(dstr); return; } - S_glob_assign_glob(aTHX_ dstr, sstr, dtype); + glob_assign_glob(dstr, sstr, dtype); return; } if (dtype >= SVt_PV) { if (dtype == SVt_PVGV) { - S_glob_assign_ref(aTHX_ dstr, sstr); + glob_assign_ref(dstr, sstr); return; } if (SvPVX_const(dstr)) { @@ -3659,7 +3739,7 @@ Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) SvFLAGS(dstr) |= sflags & (SVf_IOK|SVp_IOK|SVf_NOK|SVp_NOK|SVf_UTF8 |SVf_AMAGIC); { - const MAGIC * const smg = SvVOK(sstr); + const MAGIC * const smg = SvVSTRING_mg(sstr); if (smg) { sv_magic(dstr, NULL, PERL_MAGIC_vstring, smg->mg_ptr, smg->mg_len); @@ -3881,21 +3961,27 @@ Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) } /* -=for apidoc sv_usepvn - -Tells an SV to use C to find its string value. Normally the string is -stored inside the SV but sv_usepvn allows the SV to use an outside string. -The C should point to memory that was allocated by C. The -string length, C, must be supplied. This function will realloc the -memory pointed to by C, so that pointer should not be freed or used by -the programmer after giving it to sv_usepvn. Does not handle 'set' magic. -See C. +=for apidoc sv_usepvn_flags + +Tells an SV to use C to find its string value. Normally the +string is stored inside the SV but sv_usepvn allows the SV to use an +outside string. The C should point to memory that was allocated +by C. The string length, C, must be supplied. By default +this function will realloc (i.e. move) the memory pointed to by C, +so that pointer should not be freed or used by the programmer after +giving it to sv_usepvn, and neither should any pointers from "behind" +that pointer (e.g. ptr + 1) be used. + +If C & SV_SMAGIC is true, will call SvSETMAGIC. If C & +SV_HAS_TRAILING_NUL is true, then C must be NUL, and the realloc +will be skipped. (i.e. the buffer is actually at least 1 byte longer than +C, and already meets the requirements for storing in C) =cut */ void -Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) +Perl_sv_usepvn_flags(pTHX_ SV *sv, char *ptr, STRLEN len, U32 flags) { dVAR; STRLEN allocate; @@ -3903,34 +3989,45 @@ Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) SvUPGRADE(sv, SVt_PV); if (!ptr) { (void)SvOK_off(sv); + if (flags & SV_SMAGIC) + SvSETMAGIC(sv); return; } if (SvPVX_const(sv)) SvPV_free(sv); - allocate = PERL_STRLEN_ROUNDUP(len + 1); - ptr = saferealloc (ptr, allocate); +#ifdef DEBUGGING + if (flags & SV_HAS_TRAILING_NUL) + assert(ptr[len] == '\0'); +#endif + + allocate = (flags & SV_HAS_TRAILING_NUL) + ? len + 1: PERL_STRLEN_ROUNDUP(len + 1); + if (flags & SV_HAS_TRAILING_NUL) { + /* It's long enough - do nothing. + Specfically Perl_newCONSTSUB is relying on this. */ + } else { +#ifdef DEBUGGING + /* Force a move to shake out bugs in callers. */ + char *new_ptr = (char*)safemalloc(allocate); + Copy(ptr, new_ptr, len, char); + PoisonFree(ptr,len,char); + Safefree(ptr); + ptr = new_ptr; +#else + ptr = (char*) saferealloc (ptr, allocate); +#endif + } SvPV_set(sv, ptr); SvCUR_set(sv, len); SvLEN_set(sv, allocate); - *SvEND(sv) = '\0'; + if (!(flags & SV_HAS_TRAILING_NUL)) { + *SvEND(sv) = '\0'; + } (void)SvPOK_only_UTF8(sv); /* validate pointer */ SvTAINT(sv); -} - -/* -=for apidoc sv_usepvn_mg - -Like C, but also handles 'set' magic. - -=cut -*/ - -void -Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) -{ - sv_usepvn(sv,ptr,len); - SvSETMAGIC(sv); + if (flags & SV_SMAGIC) + SvSETMAGIC(sv); } #ifdef PERL_OLD_COPY_ON_WRITE @@ -4444,6 +4541,9 @@ Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 nam case PERL_MAGIC_regdata: vtable = &PL_vtbl_regdata; break; + case PERL_MAGIC_regdata_names: + vtable = &PL_vtbl_regdata_names; + break; case PERL_MAGIC_regdatum: vtable = &PL_vtbl_regdatum; break; @@ -4489,6 +4589,8 @@ Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 nam case PERL_MAGIC_qr: vtable = &PL_vtbl_regexp; break; + case PERL_MAGIC_hints: + /* As this vtable is all NULL, we can reuse it. */ case PERL_MAGIC_sig: vtable = &PL_vtbl_sig; break; @@ -4528,6 +4630,9 @@ Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 nam case PERL_MAGIC_backref: vtable = &PL_vtbl_backref; break; + case PERL_MAGIC_hintselem: + vtable = &PL_vtbl_hintselem; + break; case PERL_MAGIC_ext: /* Reserved for use by extensions not perl internals. */ /* Useful for attaching extension internal data to perl vars. */ @@ -4605,7 +4710,8 @@ Perl_sv_unmagic(pTHX_ SV *sv, int type) Weaken a reference: set the C flag on this RV; give the referred-to SV C magic if it hasn't already; and push a back-reference to this RV onto the array of backreferences -associated with that magic. +associated with that magic. If the RV is magical, set magic will be +called after the RV is cleared. =cut */ @@ -4758,6 +4864,7 @@ Perl_sv_kill_backrefs(pTHX_ SV *sv, AV *av) SvRV_set(referrer, 0); SvOK_off(referrer); SvWEAKREF_off(referrer); + SvSETMAGIC(referrer); } else if (SvTYPE(referrer) == SVt_PVGV || SvTYPE(referrer) == SVt_PVLV) { /* You lookin' at me? */ @@ -5038,10 +5145,8 @@ Perl_sv_clear(pTHX_ register SV *sv) } } if (type >= SVt_PVMG) { - HV *ourstash; - if ((type == SVt_PVMG || type == SVt_PVGV) && - (ourstash = OURSTASH(sv))) { - SvREFCNT_dec(ourstash); + if ((type == SVt_PVMG || type == SVt_PVGV) && SvPAD_OUR(sv)) { + SvREFCNT_dec(OURSTASH(sv)); } else if (SvMAGIC(sv)) mg_free(sv); if (type == SVt_PVMG && SvPAD_TYPED(sv)) @@ -5308,9 +5413,9 @@ Perl_sv_len_utf8(pTHX_ register SV *sv) */ SAVEI8(PL_utf8cache); PL_utf8cache = 0; - Perl_croak(aTHX_ "panic: sv_len_utf8 cache %"UVf - " real %"UVf" for %"SVf, - (UV) ulen, (UV) real, sv); + Perl_croak(aTHX_ "panic: sv_len_utf8 cache %"UVuf + " real %"UVuf" for %"SVf, + (UV) ulen, (UV) real, (void*)sv); } } } @@ -5334,7 +5439,7 @@ Perl_sv_len_utf8(pTHX_ register SV *sv) /* Walk forwards to find the byte corresponding to the passed in UTF-8 offset. */ static STRLEN -S_sv_pos_u2b_forwards(pTHX_ const U8 *const start, const U8 *const send, +S_sv_pos_u2b_forwards(const U8 *const start, const U8 *const send, STRLEN uoffset) { const U8 *s = start; @@ -5353,7 +5458,7 @@ S_sv_pos_u2b_forwards(pTHX_ const U8 *const start, const U8 *const send, whether to walk forwards or backwards to find the byte corresponding to the passed in UTF-8 offset. */ static STRLEN -S_sv_pos_u2b_midway(pTHX_ const U8 *const start, const U8 *send, +S_sv_pos_u2b_midway(const U8 *const start, const U8 *send, STRLEN uoffset, STRLEN uend) { STRLEN backw = uend - uoffset; @@ -5361,7 +5466,7 @@ S_sv_pos_u2b_midway(pTHX_ const U8 *const start, const U8 *send, /* The assumption is that going forwards is twice the speed of going forward (that's where the 2 * backw comes from). (The real figure of course depends on the UTF-8 data.) */ - return S_sv_pos_u2b_forwards(aTHX_ start, send, uoffset); + return sv_pos_u2b_forwards(start, send, uoffset); } while (backw--) { @@ -5384,7 +5489,7 @@ 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) { - STRLEN boffset; + STRLEN boffset = 0; /* Actually always set, but let's keep gcc happy. */ bool found = FALSE; assert (uoffset >= uoffset0); @@ -5412,12 +5517,12 @@ S_sv_pos_u2b_cached(pTHX_ SV *sv, MAGIC **mgp, const U8 *const start, if ((*mgp)->mg_len != -1) { /* And we know the end too. */ boffset = boffset0 - + S_sv_pos_u2b_midway(aTHX_ start + boffset0, send, + + sv_pos_u2b_midway(start + boffset0, send, uoffset - uoffset0, (*mgp)->mg_len - uoffset0); } else { boffset = boffset0 - + S_sv_pos_u2b_forwards(aTHX_ start + boffset0, + + sv_pos_u2b_forwards(start + boffset0, send, uoffset - uoffset0); } } @@ -5430,13 +5535,13 @@ S_sv_pos_u2b_cached(pTHX_ SV *sv, MAGIC **mgp, const U8 *const start, } boffset = boffset0 - + S_sv_pos_u2b_midway(aTHX_ start + boffset0, + + sv_pos_u2b_midway(start + boffset0, start + cache[1], uoffset - uoffset0, cache[0] - uoffset0); } else { boffset = boffset0 - + S_sv_pos_u2b_midway(aTHX_ start + boffset0, + + sv_pos_u2b_midway(start + boffset0, start + cache[3], uoffset - uoffset0, cache[2] - uoffset0); @@ -5448,7 +5553,7 @@ S_sv_pos_u2b_cached(pTHX_ SV *sv, MAGIC **mgp, const U8 *const start, /* In fact, offset0 is either 0, or less than offset, so don't need to worry about the other possibility. */ boffset = boffset0 - + S_sv_pos_u2b_midway(aTHX_ start + boffset0, send, + + sv_pos_u2b_midway(start + boffset0, send, uoffset - uoffset0, (*mgp)->mg_len - uoffset0); found = TRUE; @@ -5457,7 +5562,7 @@ S_sv_pos_u2b_cached(pTHX_ SV *sv, MAGIC **mgp, const U8 *const start, if (!found || PL_utf8cache < 0) { const STRLEN real_boffset - = boffset0 + S_sv_pos_u2b_forwards(aTHX_ start + boffset0, + = boffset0 + sv_pos_u2b_forwards(start + boffset0, send, uoffset - uoffset0); if (found && PL_utf8cache < 0) { @@ -5466,9 +5571,9 @@ S_sv_pos_u2b_cached(pTHX_ SV *sv, MAGIC **mgp, const U8 *const start, infinitely while printing error messages. */ SAVEI8(PL_utf8cache); PL_utf8cache = 0; - Perl_croak(aTHX_ "panic: sv_pos_u2b_cache cache %"UVf - " real %"UVf" for %"SVf, - (UV) boffset, (UV) real_boffset, sv); + Perl_croak(aTHX_ "panic: sv_pos_u2b_cache cache %"UVuf + " real %"UVuf" for %"SVf, + (UV) boffset, (UV) real_boffset, (void*)sv); } } boffset = real_boffset; @@ -5512,16 +5617,16 @@ Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) STRLEN uoffset = (STRLEN) *offsetp; const U8 * const send = start + len; MAGIC *mg = NULL; - STRLEN boffset = S_sv_pos_u2b_cached(aTHX_ sv, &mg, start, send, + const STRLEN boffset = sv_pos_u2b_cached(sv, &mg, start, send, uoffset, 0, 0); *offsetp = (I32) boffset; if (lenp) { /* Convert the relative offset to absolute. */ - STRLEN uoffset2 = uoffset + (STRLEN) *lenp; - STRLEN boffset2 - = S_sv_pos_u2b_cached(aTHX_ sv, &mg, start, send, uoffset2, + const STRLEN uoffset2 = uoffset + (STRLEN) *lenp; + const STRLEN boffset2 + = sv_pos_u2b_cached(sv, &mg, start, send, uoffset2, uoffset, boffset) - boffset; *lenp = boffset2; @@ -5600,8 +5705,8 @@ S_utf8_mg_pos_cache_update(pTHX_ SV *sv, MAGIC **mgp, STRLEN byte, STRLEN utf8, infinitely while printing error messages. */ SAVEI8(PL_utf8cache); PL_utf8cache = 0; - Perl_croak(aTHX_ "panic: utf8_mg_pos_cache_update cache %"UVf - " real %"UVf" for %"SVf, (UV) utf8, (UV) realutf8, sv); + Perl_croak(aTHX_ "panic: utf8_mg_pos_cache_update cache %"UVuf + " real %"UVuf" for %"SVf, (UV) utf8, (UV) realutf8, (void*)sv); } } @@ -5772,7 +5877,7 @@ Perl_sv_pos_b2u(pTHX_ register SV* sv, I32* offsetp) { const U8* s; const STRLEN byte = *offsetp; - STRLEN len; + STRLEN len = 0; /* Actually always set, but let's keep gcc happy. */ STRLEN blen; MAGIC* mg = NULL; const U8* send; @@ -5791,7 +5896,7 @@ Perl_sv_pos_b2u(pTHX_ register SV* sv, I32* offsetp) if (SvMAGICAL(sv) && !SvREADONLY(sv) && PL_utf8cache && (mg = mg_find(sv, PERL_MAGIC_utf8))) { if (mg->mg_ptr) { - STRLEN *cache = (STRLEN *) mg->mg_ptr; + STRLEN * const cache = (STRLEN *) mg->mg_ptr; if (cache[1] == byte) { /* An exact match. */ *offsetp = cache[0]; @@ -5846,9 +5951,9 @@ Perl_sv_pos_b2u(pTHX_ register SV* sv, I32* offsetp) infinitely while printing error messages. */ SAVEI8(PL_utf8cache); PL_utf8cache = 0; - Perl_croak(aTHX_ "panic: sv_pos_b2u cache %"UVf - " real %"UVf" for %"SVf, - (UV) len, (UV) real_len, sv); + Perl_croak(aTHX_ "panic: sv_pos_b2u cache %"UVuf + " real %"UVuf" for %"SVf, + (UV) len, (UV) real_len, (void*)sv); } } len = real_len; @@ -5884,8 +5989,16 @@ Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) pv1 = ""; cur1 = 0; } - else + else { + /* if pv1 and pv2 are the same, second SvPV_const call may + * invalidate pv1, so we may need to make a copy */ + if (sv1 == sv2 && (SvTHINKFIRST(sv1) || SvGMAGICAL(sv1))) { + pv1 = SvPV_const(sv1, cur1); + sv1 = sv_2mortal(newSVpvn(pv1, cur1)); + if (SvUTF8(sv2)) SvUTF8_on(sv1); + } pv1 = SvPV_const(sv1, cur1); + } if (!sv2){ pv2 = ""; @@ -6181,7 +6294,6 @@ Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) register I32 cnt; I32 i = 0; I32 rspara = 0; - I32 recsize; if (SvTHINKFIRST(sv)) sv_force_normal_flags(sv, append ? 0 : SV_COW_DROP_PV); @@ -6222,9 +6334,9 @@ Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) } else if (RsSNARF(PL_rs)) { /* If it is a regular disk file use size from stat() as estimate - of amount we are going to read - may result in malloc-ing - more memory than we realy need if layers bellow reduce - size we read (e.g. CRLF or a gzip layer) + of amount we are going to read -- may result in mallocing + more memory than we really need if the layers below reduce + the size we read (e.g. CRLF or a gzip layer). */ Stat_t st; if (!PerlLIO_fstat(PerlIO_fileno(fp), &st) && S_ISREG(st.st_mode)) { @@ -6239,9 +6351,10 @@ Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) else if (RsRECORD(PL_rs)) { I32 bytesread; char *buffer; + U32 recsize; /* Grab the size of the record we're getting */ - recsize = SvIV(SvRV(PL_rs)); + recsize = SvUV(SvRV(PL_rs)); /* RsRECORD() guarantees > 0. */ buffer = SvGROW(sv, (STRLEN)(recsize + append + 1)) + append; /* Go yank in */ #ifdef VMS @@ -6494,7 +6607,7 @@ screamer2: * * - jik 9/25/96 */ - if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) + if (!(cnt < (I32)sizeof(buf) && PerlIO_eof(fp))) goto screamer2; } @@ -6881,7 +6994,7 @@ Perl_newSVpv(pTHX_ const char *s, STRLEN len) register SV *sv; new_SV(sv); - sv_setpvn(sv,s,len ? len : strlen(s)); + sv_setpvn(sv, s, len || s == NULL ? len : strlen(s)); return sv; } @@ -6944,12 +7057,15 @@ Perl_newSVhek(pTHX_ const HEK *hek) SvUTF8_on (sv); Safefree (as_utf8); /* bytes_to_utf8() allocates a new string */ return sv; - } else if (flags & HVhek_REHASH) { + } else if (flags & (HVhek_REHASH|HVhek_UNSHARED)) { /* We don't have a pointer to the hv, so we have to replicate the flag into every HEK. This hv is using custom a hasing algorithm. Hence we can't return a shared string scalar, as that would contain the (wrong) hash value, and might get passed - into an hv routine with a regular hash */ + into an hv routine with a regular hash. + Similarly, a hash that isn't using shared hash keys has to have + the flag in every key so that we know not to try to call + share_hek_kek on it. */ SV * const sv = newSVpvn (HEK_KEY(hek), HEK_LEN(hek)); if (HEK_UTF8(hek)) @@ -6957,9 +7073,23 @@ Perl_newSVhek(pTHX_ const HEK *hek) return sv; } /* This will be overwhelminly the most common case. */ - return newSVpvn_share(HEK_KEY(hek), - (HEK_UTF8(hek) ? -HEK_LEN(hek) : HEK_LEN(hek)), - HEK_HASH(hek)); + { + /* Inline most of newSVpvn_share(), because share_hek_hek() is far + more efficient than sharepvn(). */ + SV *sv; + + new_SV(sv); + sv_upgrade(sv, SVt_PV); + SvPV_set(sv, (char *)HEK_KEY(share_hek_hek(hek))); + SvCUR_set(sv, HEK_LEN(hek)); + SvLEN_set(sv, 0); + SvREADONLY_on(sv); + SvFAKE_on(sv); + SvPOK_on(sv); + if (HEK_UTF8(hek)) + SvUTF8_on(sv); + return sv; + } } } @@ -6983,6 +7113,8 @@ Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) dVAR; register SV *sv; bool is_utf8 = FALSE; + const char *const orig_src = src; + if (len < 0) { STRLEN tmplen = -len; is_utf8 = TRUE; @@ -7002,6 +7134,8 @@ Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) SvPOK_on(sv); if (is_utf8) SvUTF8_on(sv); + if (src != orig_src) + Safefree(src); return sv; } @@ -7313,7 +7447,7 @@ Perl_sv_2io(pTHX_ SV *sv) else io = 0; if (!io) - Perl_croak(aTHX_ "Bad filehandle: %"SVf, sv); + Perl_croak(aTHX_ "Bad filehandle: %"SVf, (void*)sv); break; } return io; @@ -7405,7 +7539,7 @@ 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"\"", - sv); + (void*)sv); } return GvCVu(gv); } @@ -7557,7 +7691,7 @@ Returns a string describing what the SV is a reference to. =cut */ -char * +const char * Perl_sv_reftype(pTHX_ const SV *sv, int ob) { /* The fact that I don't need to downcast to char * everywhere, only in ?: @@ -7681,9 +7815,11 @@ Perl_newSVrv(pTHX_ SV *rv, const char *classname) sv_clear(rv); SvFLAGS(rv) = 0; SvREFCNT(rv) = refcnt; - } - if (SvTYPE(rv) < SVt_RV) + sv_upgrade(rv, SVt_RV); + } else if (SvROK(rv)) { + SvREFCNT_dec(SvRV(rv)); + } else if (SvTYPE(rv) < SVt_RV) sv_upgrade(rv, SVt_RV); else if (SvTYPE(rv) > SVt_RV) { SvPV_free(rv); @@ -8532,7 +8668,10 @@ Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV switch (*q) { case ' ': case '+': - plus = *q++; + if (plus == '+' && *q == ' ') /* '+' over ' ' */ + q++; + else + plus = *q++; continue; case '-': @@ -8669,14 +8808,15 @@ Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV else i = (ewix ? ewix <= svmax : svix < svmax) ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; - precis = (i < 0) ? 0 : i; + precis = i; + has_precis = !(i < 0); } else { precis = 0; while (isDIGIT(*q)) precis = precis * 10 + (*q++ - '0'); + has_precis = TRUE; } - has_precis = TRUE; } /* SIZE */ @@ -8792,13 +8932,17 @@ Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV else { eptr = SvPVx_const(argsv, elen); if (DO_UTF8(argsv)) { + I32 old_precis = precis; if (has_precis && precis < elen) { I32 p = precis; sv_pos_u2b(argsv, &p, 0); /* sticks at end */ precis = p; } if (width) { /* fudge width (can't fudge elen) */ - width += elen - sv_len_utf8(argsv); + if (has_precis && precis < elen) + width += precis - old_precis; + else + width += elen - sv_len_utf8(argsv); } is_utf8 = TRUE; } @@ -8957,18 +9101,18 @@ Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV integer: { char *ptr = ebuf + sizeof ebuf; + bool tempalt = uv ? alt : FALSE; /* Vectors can't change alt */ + zeros = 0; + switch (base) { unsigned dig; case 16: - if (!uv) - alt = FALSE; - p = (char*)((c == 'X') - ? "0123456789ABCDEF" : "0123456789abcdef"); + p = (char *)((c == 'X') ? PL_hexdigit + 16 : PL_hexdigit); do { dig = uv & 15; *--ptr = p[dig]; } while (uv >>= 4); - if (alt) { + if (tempalt) { esignbuf[esignlen++] = '0'; esignbuf[esignlen++] = c; /* 'x' or 'X' */ } @@ -8982,13 +9126,11 @@ Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV *--ptr = '0'; break; case 2: - if (!uv) - alt = FALSE; do { dig = uv & 1; *--ptr = '0' + dig; } while (uv >>= 1); - if (alt) { + if (tempalt) { esignbuf[esignlen++] = '0'; esignbuf[esignlen++] = 'b'; } @@ -9007,6 +9149,10 @@ Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV zeros = precis - elen; else if (precis == 0 && elen == 1 && *eptr == '0') elen = 0; + + /* a precision nullifies the 0 flag. */ + if (fill == '0') + fill = ' '; } } break; @@ -9208,8 +9354,8 @@ Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV * --jhi */ #if defined(HAS_LONG_DOUBLE) elen = ((intsize == 'q') - ? my_sprintf(PL_efloatbuf, ptr, nv) - : my_sprintf(PL_efloatbuf, ptr, (double)nv)); + ? my_snprintf(PL_efloatbuf, PL_efloatsize, ptr, nv) + : my_snprintf(PL_efloatbuf, PL_efloatsize, ptr, (double)nv)); #else elen = my_sprintf(PL_efloatbuf, ptr, nv); #endif @@ -9260,7 +9406,7 @@ Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV (UV)c & 0xFF); } else sv_catpvs(msg, "end of string"); - Perl_warner(aTHX_ packWARN(WARN_PRINTF), "%"SVf, msg); /* yes, this is reentrant */ + Perl_warner(aTHX_ packWARN(WARN_PRINTF), "%"SVf, (void*)msg); /* yes, this is reentrant */ } /* output mangled stuff ... */ @@ -9280,27 +9426,29 @@ Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV continue; /* not "break" */ } - /* calculate width before utf8_upgrade changes it */ + if (is_utf8 != has_utf8) { + if (is_utf8) { + if (SvCUR(sv)) + sv_utf8_upgrade(sv); + } + else { + const STRLEN old_elen = elen; + SV * const nsv = sv_2mortal(newSVpvn(eptr, elen)); + sv_utf8_upgrade(nsv); + eptr = SvPVX_const(nsv); + elen = SvCUR(nsv); + + if (width) { /* fudge width (can't fudge elen) */ + width += elen - old_elen; + } + is_utf8 = TRUE; + } + } + have = esignlen + zeros + elen; if (have < zeros) Perl_croak_nocontext(PL_memory_wrap); - if (is_utf8 != has_utf8) { - if (is_utf8) { - if (SvCUR(sv)) - sv_utf8_upgrade(sv); - } - else { - SV * const nsv = sv_2mortal(newSVpvn(eptr, elen)); - sv_utf8_upgrade(nsv); - eptr = SvPVX_const(nsv); - elen = SvCUR(nsv); - } - SvGROW(sv, SvCUR(sv) + elen + 1); - p = SvEND(sv); - *p = '\0'; - } - need = (have > width ? have : width); gap = need - have; @@ -9375,11 +9523,15 @@ ptr_table_* functions. #if defined(USE_ITHREADS) +/* XXX Remove this so it doesn't have to go thru the macro and return for nothing */ #ifndef GpREFCNT_inc # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) #endif +/* Certain cases in Perl_ss_dup have been merged, by relying on the fact + that currently av_dup and hv_dup are the same as sv_dup. 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) @@ -9402,115 +9554,7 @@ ptr_table_* functions. REGEXP * Perl_re_dup(pTHX_ const REGEXP *r, CLONE_PARAMS *param) { - dVAR; - REGEXP *ret; - int i, len, npar; - struct reg_substr_datum *s; - - if (!r) - return (REGEXP *)NULL; - - if ((ret = (REGEXP *)ptr_table_fetch(PL_ptr_table, r))) - return ret; - - len = r->offsets[0]; - npar = r->nparens+1; - - Newxc(ret, sizeof(regexp) + (len+1)*sizeof(regnode), char, regexp); - Copy(r->program, ret->program, len+1, regnode); - - Newx(ret->startp, npar, I32); - Copy(r->startp, ret->startp, npar, I32); - Newx(ret->endp, npar, I32); - Copy(r->startp, ret->startp, npar, I32); - - Newx(ret->substrs, 1, struct reg_substr_data); - for (s = ret->substrs->data, i = 0; i < 3; i++, s++) { - s->min_offset = r->substrs->data[i].min_offset; - s->max_offset = r->substrs->data[i].max_offset; - s->substr = sv_dup_inc(r->substrs->data[i].substr, param); - s->utf8_substr = sv_dup_inc(r->substrs->data[i].utf8_substr, param); - } - - ret->regstclass = NULL; - if (r->data) { - struct reg_data *d; - const int count = r->data->count; - int i; - - Newxc(d, sizeof(struct reg_data) + count*sizeof(void *), - char, struct reg_data); - Newx(d->what, count, U8); - - d->count = count; - for (i = 0; i < count; i++) { - d->what[i] = r->data->what[i]; - switch (d->what[i]) { - /* legal options are one of: sfpont - see also regcomp.h and pregfree() */ - case 's': - d->data[i] = sv_dup_inc((SV *)r->data->data[i], param); - break; - case 'p': - d->data[i] = av_dup_inc((AV *)r->data->data[i], param); - break; - case 'f': - /* This is cheating. */ - Newx(d->data[i], 1, struct regnode_charclass_class); - StructCopy(r->data->data[i], d->data[i], - struct regnode_charclass_class); - ret->regstclass = (regnode*)d->data[i]; - break; - case 'o': - /* Compiled op trees are readonly, and can thus be - shared without duplication. */ - OP_REFCNT_LOCK; - d->data[i] = (void*)OpREFCNT_inc((OP*)r->data->data[i]); - OP_REFCNT_UNLOCK; - break; - case 'n': - d->data[i] = r->data->data[i]; - break; - case 't': - d->data[i] = r->data->data[i]; - OP_REFCNT_LOCK; - ((reg_trie_data*)d->data[i])->refcount++; - OP_REFCNT_UNLOCK; - break; - default: - Perl_croak(aTHX_ "panic: re_dup unknown data code '%c'", r->data->what[i]); - } - } - - ret->data = d; - } - else - ret->data = NULL; - - Newx(ret->offsets, 2*len+1, U32); - Copy(r->offsets, ret->offsets, 2*len+1, U32); - - ret->precomp = SAVEPVN(r->precomp, r->prelen); - ret->refcnt = r->refcnt; - ret->minlen = r->minlen; - ret->prelen = r->prelen; - ret->nparens = r->nparens; - ret->lastparen = r->lastparen; - ret->lastcloseparen = r->lastcloseparen; - ret->reganch = r->reganch; - - ret->sublen = r->sublen; - - if (RX_MATCH_COPIED(ret)) - ret->subbeg = SAVEPVN(r->subbeg, r->sublen); - else - ret->subbeg = NULL; -#ifdef PERL_OLD_COPY_ON_WRITE - ret->saved_copy = NULL; -#endif - - ptr_table_store(PL_ptr_table, r, ret); - return ret; + return CALLREGDUPE(r,param); } /* duplicate a file handle */ @@ -9577,7 +9621,7 @@ Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) ret->gp_cv = cv_dup_inc(gp->gp_cv, param); ret->gp_cvgen = gp->gp_cvgen; ret->gp_line = gp->gp_line; - ret->gp_file = gp->gp_file; /* points to COP.cop_file */ + ret->gp_file_hek = hek_dup(gp->gp_file_hek, param); return ret; } @@ -9687,7 +9731,7 @@ S_ptr_table_find(PTR_TBL_t *tbl, const void *sv) { if (tblent->oldval == sv) return tblent; } - return 0; + return NULL; } void * @@ -9695,7 +9739,7 @@ Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, const void *sv) { PTR_TBL_ENT_t const *const tblent = ptr_table_find(tbl, sv); PERL_UNUSED_CONTEXT; - return tblent ? tblent->newval : (void *) 0; + return tblent ? tblent->newval : NULL; } /* add a new entry to a pointer-mapping table */ @@ -9928,7 +9972,7 @@ Perl_sv_dup(pTHX_ const SV *sstr, CLONE_PARAMS* param) case SVt_PVGV: if (GvUNIQUE((GV*)sstr)) { - /*EMPTY*/; /* Do sharing here, and fall through */ + NOOP; /* Do sharing here, and fall through */ } case SVt_PVIO: case SVt_PVFM: @@ -9973,9 +10017,8 @@ Perl_sv_dup(pTHX_ const SV *sstr, CLONE_PARAMS* param) missing by always going for the destination. FIXME - instrument and check that assumption */ if (sv_type >= SVt_PVMG) { - HV *ourstash; - if ((sv_type == SVt_PVMG) && (ourstash = OURSTASH(dstr))) { - OURSTASH_set(dstr, hv_dup_inc(ourstash, param)); + if ((sv_type == SVt_PVMG) && SvPAD_OUR(dstr)) { + OURSTASH_set(dstr, hv_dup_inc(OURSTASH(dstr), param)); } else if (SvMAGIC(dstr)) SvMAGIC_set(dstr, mg_dup(SvMAGIC(dstr), param)); if (SvSTASH(dstr)) @@ -10039,7 +10082,7 @@ Perl_sv_dup(pTHX_ const SV *sstr, CLONE_PARAMS* param) if (IoDIRP(dstr)) { IoDIRP(dstr) = dirp_dup(IoDIRP(dstr)); } else { - /*EMPTY*/; + NOOP; /* IoDIRP(dstr) is already a copy of IoDIRP(sstr) */ } } @@ -10076,55 +10119,49 @@ Perl_sv_dup(pTHX_ const SV *sstr, CLONE_PARAMS* param) } break; case SVt_PVHV: - { - HEK *hvname = NULL; - - if (HvARRAY((HV*)sstr)) { - STRLEN i = 0; - const bool sharekeys = !!HvSHAREKEYS(sstr); - XPVHV * const dxhv = (XPVHV*)SvANY(dstr); - XPVHV * const sxhv = (XPVHV*)SvANY(sstr); - char *darray; - Newx(darray, PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1) - + (SvOOK(sstr) ? sizeof(struct xpvhv_aux) : 0), - char); - HvARRAY(dstr) = (HE**)darray; - while (i <= sxhv->xhv_max) { - const HE *source = HvARRAY(sstr)[i]; - HvARRAY(dstr)[i] = source - ? he_dup(source, sharekeys, param) : 0; - ++i; - } - if (SvOOK(sstr)) { - struct xpvhv_aux * const saux = HvAUX(sstr); - struct xpvhv_aux * const daux = HvAUX(dstr); - /* This flag isn't copied. */ - /* SvOOK_on(hv) attacks the IV flags. */ - SvFLAGS(dstr) |= SVf_OOK; - - hvname = saux->xhv_name; - daux->xhv_name - = hvname ? hek_dup(hvname, param) : hvname; - - daux->xhv_riter = saux->xhv_riter; - daux->xhv_eiter = saux->xhv_eiter - ? he_dup(saux->xhv_eiter, - (bool)!!HvSHAREKEYS(sstr), param) : 0; - daux->xhv_backreferences = saux->xhv_backreferences + if (HvARRAY((HV*)sstr)) { + STRLEN i = 0; + const bool sharekeys = !!HvSHAREKEYS(sstr); + XPVHV * const dxhv = (XPVHV*)SvANY(dstr); + XPVHV * const sxhv = (XPVHV*)SvANY(sstr); + char *darray; + Newx(darray, PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1) + + (SvOOK(sstr) ? sizeof(struct xpvhv_aux) : 0), + char); + HvARRAY(dstr) = (HE**)darray; + while (i <= sxhv->xhv_max) { + const HE * const source = HvARRAY(sstr)[i]; + HvARRAY(dstr)[i] = source + ? he_dup(source, sharekeys, param) : 0; + ++i; + } + if (SvOOK(sstr)) { + HEK *hvname; + const struct xpvhv_aux * const saux = HvAUX(sstr); + struct xpvhv_aux * const daux = HvAUX(dstr); + /* This flag isn't copied. */ + /* SvOOK_on(hv) attacks the IV flags. */ + SvFLAGS(dstr) |= SVf_OOK; + + hvname = saux->xhv_name; + daux->xhv_name = hvname ? hek_dup(hvname, param) : hvname; + + daux->xhv_riter = saux->xhv_riter; + daux->xhv_eiter = saux->xhv_eiter + ? he_dup(saux->xhv_eiter, + (bool)!!HvSHAREKEYS(sstr), param) : 0; + daux->xhv_backreferences = + saux->xhv_backreferences ? (AV*) SvREFCNT_inc( - sv_dup((SV*)saux-> - xhv_backreferences, - param)) + sv_dup((SV*)saux->xhv_backreferences, param)) : 0; - } - } - else { - SvPV_set(dstr, NULL); + /* Record stashes for possible cloning in Perl_clone(). */ + if (hvname) + av_push(param->stashes, dstr); } - /* Record stashes for possible cloning in Perl_clone(). */ - if(hvname) - av_push(param->stashes, dstr); } + else + SvPV_set(dstr, NULL); break; case SVt_PVCV: if (!(param->flags & CLONEf_COPY_STACKS)) { @@ -10210,6 +10247,8 @@ Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) 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.oldcomppad = (PAD*)ptr_table_fetch(PL_ptr_table, + cx->blk_sub.oldcomppad); break; case CXt_EVAL: ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; @@ -10222,9 +10261,7 @@ Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) case CXt_LOOP: ncx->blk_loop.label = cx->blk_loop.label; ncx->blk_loop.resetsp = cx->blk_loop.resetsp; - ncx->blk_loop.redo_op = cx->blk_loop.redo_op; - ncx->blk_loop.next_op = cx->blk_loop.next_op; - ncx->blk_loop.last_op = cx->blk_loop.last_op; + 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)); @@ -10361,23 +10398,12 @@ Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) TOPINT(nss,ix) = i; switch (i) { case SAVEt_ITEM: /* normal string */ + case SAVEt_SV: /* scalar reference */ sv = (SV*)POPPTR(ss,ix); TOPPTR(nss,ix) = sv_dup_inc(sv, param); sv = (SV*)POPPTR(ss,ix); TOPPTR(nss,ix) = sv_dup_inc(sv, param); break; - case SAVEt_SV: /* scalar reference */ - sv = (SV*)POPPTR(ss,ix); - TOPPTR(nss,ix) = sv_dup_inc(sv, param); - gv = (GV*)POPPTR(ss,ix); - TOPPTR(nss,ix) = gv_dup_inc(gv, param); - break; - case SAVEt_GENERIC_PVREF: /* generic char* */ - c = (char*)POPPTR(ss,ix); - TOPPTR(nss,ix) = pv_dup(c); - ptr = POPPTR(ss,ix); - TOPPTR(nss,ix) = any_dup(ptr, proto_perl); - break; case SAVEt_SHARED_PVREF: /* char* in shared space */ c = (char*)POPPTR(ss,ix); TOPPTR(nss,ix) = savesharedpv(c); @@ -10391,15 +10417,10 @@ Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ break; - case SAVEt_AV: /* array reference */ - av = (AV*)POPPTR(ss,ix); - TOPPTR(nss,ix) = av_dup_inc(av, param); - gv = (GV*)POPPTR(ss,ix); - TOPPTR(nss,ix) = gv_dup(gv, param); - break; case SAVEt_HV: /* hash reference */ - hv = (HV*)POPPTR(ss,ix); - TOPPTR(nss,ix) = hv_dup_inc(hv, param); + case SAVEt_AV: /* array reference */ + sv = (SV*) POPPTR(ss,ix); + TOPPTR(nss,ix) = sv_dup_inc(sv, param); gv = (GV*)POPPTR(ss,ix); TOPPTR(nss,ix) = gv_dup(gv, param); break; @@ -10418,6 +10439,7 @@ Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) case SAVEt_I32: /* I32 reference */ case SAVEt_I16: /* I16 reference */ case SAVEt_I8: /* I8 reference */ + case SAVEt_COP_ARYBASE: /* call CopARYBASE_set */ ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); i = POPINT(ss,ix); @@ -10429,6 +10451,8 @@ Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) iv = POPIV(ss,ix); TOPIV(nss,ix) = iv; break; + case SAVEt_HPTR: /* HV* reference */ + case SAVEt_APTR: /* AV* reference */ case SAVEt_SPTR: /* SV* reference */ ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); @@ -10441,24 +10465,13 @@ Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); break; + case SAVEt_GENERIC_PVREF: /* generic char* */ case SAVEt_PPTR: /* char* reference */ ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); c = (char*)POPPTR(ss,ix); TOPPTR(nss,ix) = pv_dup(c); break; - case SAVEt_HPTR: /* HV* reference */ - ptr = POPPTR(ss,ix); - TOPPTR(nss,ix) = any_dup(ptr, proto_perl); - hv = (HV*)POPPTR(ss,ix); - TOPPTR(nss,ix) = hv_dup(hv, param); - break; - case SAVEt_APTR: /* AV* reference */ - ptr = POPPTR(ss,ix); - TOPPTR(nss,ix) = any_dup(ptr, proto_perl); - av = (AV*)POPPTR(ss,ix); - TOPPTR(nss,ix) = av_dup(av, param); - break; case SAVEt_NSTAB: gv = (GV*)POPPTR(ss,ix); TOPPTR(nss,ix) = gv_dup(gv, param); @@ -10570,6 +10583,17 @@ Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) case SAVEt_HINTS: i = POPINT(ss,ix); TOPINT(nss,ix) = i; + ptr = POPPTR(ss,ix); + if (ptr) { + HINTS_REFCNT_LOCK; + ((struct refcounted_he *)ptr)->refcounted_he_refcnt++; + HINTS_REFCNT_UNLOCK; + } + TOPPTR(nss,ix) = ptr; + if (i & HINT_LOCALIZE_HH) { + hv = (HV*)POPPTR(ss,ix); + TOPPTR(nss,ix) = hv_dup_inc(hv, param); + } break; case SAVEt_COMPPAD: av = (AV*)POPPTR(ss,ix); @@ -10597,8 +10621,74 @@ Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) sv = (SV*)POPPTR(ss,ix); TOPPTR(nss,ix) = sv_dup(sv, param); break; + case SAVEt_RE_STATE: + { + const struct re_save_state *const old_state + = (struct re_save_state *) + (ss + ix - SAVESTACK_ALLOC_FOR_RE_SAVE_STATE); + struct re_save_state *const new_state + = (struct re_save_state *) + (nss + ix - SAVESTACK_ALLOC_FOR_RE_SAVE_STATE); + + Copy(old_state, new_state, 1, struct re_save_state); + ix -= SAVESTACK_ALLOC_FOR_RE_SAVE_STATE; + + new_state->re_state_bostr + = pv_dup(old_state->re_state_bostr); + new_state->re_state_reginput + = pv_dup(old_state->re_state_reginput); + new_state->re_state_regeol + = pv_dup(old_state->re_state_regeol); + new_state->re_state_regstartp + = (I32*) any_dup(old_state->re_state_regstartp, proto_perl); + new_state->re_state_regendp + = (I32*) any_dup(old_state->re_state_regendp, proto_perl); + new_state->re_state_reglastparen + = (U32*) any_dup(old_state->re_state_reglastparen, + proto_perl); + new_state->re_state_reglastcloseparen + = (U32*)any_dup(old_state->re_state_reglastcloseparen, + proto_perl); + /* XXX This just has to be broken. The old save_re_context + code did SAVEGENERICPV(PL_reg_start_tmp); + PL_reg_start_tmp is char **. + Look above to what the dup code does for + SAVEt_GENERIC_PVREF + It can never have worked. + So this is merely a faithful copy of the exiting bug: */ + new_state->re_state_reg_start_tmp + = (char **) pv_dup((char *) + old_state->re_state_reg_start_tmp); + /* I assume that it only ever "worked" because no-one called + (pseudo)fork while the regexp engine had re-entered itself. + */ +#ifdef PERL_OLD_COPY_ON_WRITE + new_state->re_state_nrs + = sv_dup(old_state->re_state_nrs, param); +#endif + new_state->re_state_reg_magic + = (MAGIC*) any_dup(old_state->re_state_reg_magic, + proto_perl); + new_state->re_state_reg_oldcurpm + = (PMOP*) any_dup(old_state->re_state_reg_oldcurpm, + proto_perl); + new_state->re_state_reg_curpm + = (PMOP*) any_dup(old_state->re_state_reg_curpm, + proto_perl); + new_state->re_state_reg_oldsaved + = pv_dup(old_state->re_state_reg_oldsaved); + new_state->re_state_reg_poscache + = pv_dup(old_state->re_state_reg_poscache); + new_state->re_state_reg_starttry + = pv_dup(old_state->re_state_reg_starttry); + break; + } + case SAVEt_COMPILE_WARNINGS: + ptr = POPPTR(ss,ix); + TOPPTR(nss,ix) = DUP_WARNINGS((STRLEN*)ptr); + break; default: - Perl_croak(aTHX_ "panic: ss_dup inconsistency"); + Perl_croak(aTHX_ "panic: ss_dup inconsistency (%"IVdf")", (IV) i); } } @@ -10727,7 +10817,7 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, PERL_SET_THX(my_perl); # ifdef DEBUGGING - Poison(my_perl, 1, PerlInterpreter); + PoisonNew(my_perl, 1, PerlInterpreter); PL_op = NULL; PL_curcop = NULL; PL_markstack = 0; @@ -10761,7 +10851,7 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, PERL_SET_THX(my_perl); # ifdef DEBUGGING - Poison(my_perl, 1, PerlInterpreter); + PoisonNew(my_perl, 1, PerlInterpreter); PL_op = NULL; PL_curcop = NULL; PL_markstack = 0; @@ -10816,7 +10906,7 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, SvREFCNT(&PL_sv_no) = (~(U32)0)/2; SvFLAGS(&PL_sv_no) = SVp_IOK|SVf_IOK|SVp_NOK|SVf_NOK |SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; - SvPV_set(&PL_sv_no, SAVEPVN(PL_No, 0)); + SvPV_set(&PL_sv_no, savepvn(PL_No, 0)); SvCUR_set(&PL_sv_no, 0); SvLEN_set(&PL_sv_no, 1); SvIV_set(&PL_sv_no, 0); @@ -10827,7 +10917,7 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; SvFLAGS(&PL_sv_yes) = SVp_IOK|SVf_IOK|SVp_NOK|SVf_NOK |SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; - SvPV_set(&PL_sv_yes, SAVEPVN(PL_Yes, 1)); + SvPV_set(&PL_sv_yes, savepvn(PL_Yes, 1)); SvCUR_set(&PL_sv_yes, 1); SvLEN_set(&PL_sv_yes, 2); SvIV_set(&PL_sv_yes, 1); @@ -10850,10 +10940,12 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_file, PL_compiling.cop_file); ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); - if (!specialWARN(PL_compiling.cop_warnings)) - PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); - if (!specialCopIO(PL_compiling.cop_io)) - PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); + PL_compiling.cop_warnings = DUP_WARNINGS(PL_compiling.cop_warnings); + if (PL_compiling.cop_hints_hash) { + HINTS_REFCNT_LOCK; + PL_compiling.cop_hints_hash->refcounted_he_refcnt++; + HINTS_REFCNT_UNLOCK; + } PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); /* pseudo environmental stuff */ @@ -10907,7 +10999,6 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, PL_formfeed = sv_dup(proto_perl->Iformfeed, param); PL_maxsysfd = proto_perl->Imaxsysfd; - PL_multiline = proto_perl->Imultiline; PL_statusvalue = proto_perl->Istatusvalue; #ifdef VMS PL_statusvalue_vms = proto_perl->Istatusvalue_vms; @@ -10920,6 +11011,12 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ + + /* RE engine related */ + Zero(&PL_reg_state, 1, struct re_save_state); + PL_reginterp_cnt = 0; + PL_regmatch_slab = NULL; + /* Clone the regex array */ PL_regex_padav = newAV(); { @@ -10976,6 +11073,8 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); PL_beginav_save = av_dup_inc(proto_perl->Ibeginav_save, param); PL_checkav_save = av_dup_inc(proto_perl->Icheckav_save, param); + PL_unitcheckav = av_dup_inc(proto_perl->Iunitcheckav, param); + PL_unitcheckav_save = av_dup_inc(proto_perl->Iunitcheckav_save, param); PL_endav = av_dup_inc(proto_perl->Iendav, param); PL_checkav = av_dup_inc(proto_perl->Icheckav, param); PL_initav = av_dup_inc(proto_perl->Iinitav, param); @@ -11264,7 +11363,7 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, PL_glob_index = proto_perl->Iglob_index; PL_srand_called = proto_perl->Isrand_called; - PL_uudmap['M'] = 0; /* reinits on demand */ + PL_uudmap[(U32) 'M'] = 0; /* reinits on demand */ PL_bitcount = NULL; /* reinits on demand */ if (proto_perl->Ipsig_pend) { @@ -11415,56 +11514,10 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags, PL_watchok = NULL; PL_regdummy = proto_perl->Tregdummy; - PL_regprecomp = NULL; - PL_regnpar = 0; - PL_regsize = 0; PL_colorset = 0; /* reinits PL_colors[] */ /*PL_colors[6] = {0,0,0,0,0,0};*/ - PL_reginput = NULL; - PL_regbol = NULL; - PL_regeol = NULL; - PL_regstartp = (I32*)NULL; - PL_regendp = (I32*)NULL; - PL_reglastparen = (U32*)NULL; - PL_reglastcloseparen = (U32*)NULL; - PL_regtill = NULL; - PL_reg_start_tmp = (char**)NULL; - PL_reg_start_tmpl = 0; - PL_regdata = (struct reg_data*)NULL; - PL_bostr = NULL; - PL_reg_flags = 0; - PL_reg_eval_set = 0; - PL_regnarrate = 0; - PL_regprogram = (regnode*)NULL; - PL_regindent = 0; - PL_reg_call_cc = (struct re_cc_state*)NULL; - PL_reg_re = (regexp*)NULL; - PL_reg_ganch = NULL; - PL_reg_sv = NULL; - PL_reg_match_utf8 = FALSE; - PL_reg_magic = (MAGIC*)NULL; - PL_reg_oldpos = 0; - PL_reg_oldcurpm = (PMOP*)NULL; - PL_reg_curpm = (PMOP*)NULL; - PL_reg_oldsaved = NULL; - PL_reg_oldsavedlen = 0; -#ifdef PERL_OLD_COPY_ON_WRITE - PL_nrs = NULL; -#endif - PL_reg_maxiter = 0; - PL_reg_leftiter = 0; - PL_reg_poscache = NULL; - PL_reg_poscache_size= 0; - - /* RE engine - function pointers */ - PL_regcompp = proto_perl->Tregcompp; - PL_regexecp = proto_perl->Tregexecp; - PL_regint_start = proto_perl->Tregint_start; - PL_regint_string = proto_perl->Tregint_string; - PL_regfree = proto_perl->Tregfree; - PL_reginterp_cnt = 0; - PL_reg_starttry = 0; + /* Pluggable optimizer */ PL_peepp = proto_perl->Tpeepp; @@ -11671,16 +11724,17 @@ STATIC I32 S_find_array_subscript(pTHX_ AV *av, SV* val) { dVAR; - SV** svp; - I32 i; if (!av || SvMAGICAL(av) || !AvARRAY(av) || (AvFILLp(av) > FUV_MAX_SEARCH_SIZE)) return -1; - svp = AvARRAY(av); - for (i=AvFILLp(av); i>=0; i--) { - if (svp[i] == val && svp[i] != &PL_sv_undef) - return i; + if (val != &PL_sv_undef) { + SV ** const svp = AvARRAY(av); + I32 i; + + for (i=AvFILLp(av); i>=0; i--) + if (svp[i] == val) + return i; } return -1; } @@ -11817,12 +11871,12 @@ S_find_uninit_var(pTHX_ OP* obase, SV* uninit_sv, bool match) /* attempt to find a match within the aggregate */ if (hash) { - keysv = S_find_hash_subscript(aTHX_ (HV*)sv, uninit_sv); + keysv = find_hash_subscript((HV*)sv, uninit_sv); if (keysv) subscript_type = FUV_SUBSCRIPT_HASH; } else { - index = S_find_array_subscript(aTHX_ (AV*)sv, uninit_sv); + index = find_array_subscript((AV*)sv, uninit_sv); if (index >= 0) subscript_type = FUV_SUBSCRIPT_ARRAY; } @@ -11938,13 +11992,13 @@ S_find_uninit_var(pTHX_ OP* obase, SV* uninit_sv, bool match) /* index is an expression; * attempt to find a match within the aggregate */ if (obase->op_type == OP_HELEM) { - SV * const keysv = S_find_hash_subscript(aTHX_ (HV*)sv, uninit_sv); + SV * const keysv = find_hash_subscript((HV*)sv, uninit_sv); if (keysv) return varname(gv, '%', o->op_targ, keysv, 0, FUV_SUBSCRIPT_HASH); } else { - const I32 index = S_find_array_subscript(aTHX_ (AV*)sv, uninit_sv); + const I32 index = find_array_subscript((AV*)sv, uninit_sv); if (index >= 0) return varname(gv, '@', o->op_targ, NULL, index, FUV_SUBSCRIPT_ARRAY); @@ -12036,13 +12090,14 @@ S_find_uninit_var(pTHX_ OP* obase, SV* uninit_sv, bool match) * or are optimized away, then it's unambiguous */ o2 = NULL; for (kid=o; kid; kid = kid->op_sibling) { - if (kid && - ( (kid->op_type == OP_CONST && SvOK(cSVOPx_sv(kid))) - || (kid->op_type == OP_NULL && ! (kid->op_flags & OPf_KIDS)) - || (kid->op_type == OP_PUSHMARK) + if (kid) { + const OPCODE type = kid->op_type; + if ( (type == OP_CONST && SvOK(cSVOPx_sv(kid))) + || (type == OP_NULL && ! (kid->op_flags & OPf_KIDS)) + || (type == OP_PUSHMARK) ) - ) continue; + } if (o2) { /* more than one found */ o2 = NULL; break;