X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=op.c;h=a6a5422f3bb3436e783685f88cabf3b360a335a6;hb=abbb319842d03cfdb615b06ae57e058d7e36b88c;hp=d1f73ea80dc7ad6e287377d01435ae586f0209e0;hpb=c4420975666e665b3282e2edeea3304e6626be36;p=p5sagit%2Fp5-mst-13.2.git diff --git a/op.c b/op.c index d1f73ea..a6a5422 100644 --- a/op.c +++ b/op.c @@ -1,7 +1,7 @@ /* op.c * * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others + * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. @@ -146,14 +146,14 @@ Perl_Slab_Free(pTHX_ void *op) } #endif /* - * In the following definition, the ", Nullop" is just to make the compiler + * In the following definition, the ", (OP*)0" is just to make the compiler * think the expression is of the right type: croak actually does a Siglongjmp. */ #define CHECKOP(type,o) \ - ((PL_op_mask && PL_op_mask[type]) \ + ((PL_op_mask && PL_op_mask[type]) \ ? ( op_free((OP*)o), \ Perl_croak(aTHX_ "'%s' trapped by operation mask", PL_op_desc[type]), \ - Nullop ) \ + (OP*)0 ) \ : CALL_FPTR(PL_check[type])(aTHX_ (OP*)o)) #define RETURN_UNLIMITED_NUMBER (PERL_INT_MAX / 2) @@ -162,7 +162,7 @@ STATIC const char* S_gv_ename(pTHX_ GV *gv) { SV* const tmpsv = sv_newmortal(); - gv_efullname3(tmpsv, gv, Nullch); + gv_efullname3(tmpsv, gv, NULL); return SvPV_nolen_const(tmpsv); } @@ -198,6 +198,8 @@ S_bad_type(pTHX_ I32 n, const char *t, const char *name, const OP *kid) STATIC void S_no_bareword_allowed(pTHX_ const OP *o) { + if (PL_madskills) + return; /* various ok barewords are hidden in extra OP_NULL */ qerror(Perl_mess(aTHX_ "Bareword \"%"SVf"\" not allowed while \"strict subs\" in use", cSVOPo_sv)); @@ -208,14 +210,18 @@ S_no_bareword_allowed(pTHX_ const OP *o) PADOFFSET Perl_allocmy(pTHX_ char *name) { + dVAR; PADOFFSET off; + const bool is_our = (PL_in_my == KEY_our); /* complain about "my $" etc etc */ - if (!(PL_in_my == KEY_our || + if (*name && + !(is_our || isALPHA(name[1]) || (USE_UTF8_IN_NAMES && UTF8_IS_START(name[1])) || - (name[1] == '_' && (*name == '$' || (int)strlen(name) > 2)))) + (name[1] == '_' && (*name == '$' || name[2])))) { + /* name[2] is true if strlen(name) > 2 */ if (!isPRINT(name[1]) || strchr("\t\n\r\f", name[1])) { /* 1999-02-27 mjd@plover.com */ char *p; @@ -239,25 +245,22 @@ Perl_allocmy(pTHX_ char *name) } /* check for duplicate declaration */ - pad_check_dup(name, - (bool)(PL_in_my == KEY_our), - (PL_curstash ? PL_curstash : PL_defstash) - ); + pad_check_dup(name, is_our, (PL_curstash ? PL_curstash : PL_defstash)); if (PL_in_my_stash && *name != '$') { yyerror(Perl_form(aTHX_ "Can't declare class for non-scalar %s in \"%s\"", - name, PL_in_my == KEY_our ? "our" : "my")); + name, is_our ? "our" : "my")); } /* allocate a spare slot and store the name in that slot */ off = pad_add_name(name, PL_in_my_stash, - (PL_in_my == KEY_our + (is_our /* $_ is always in main::, even with our */ ? (PL_curstash && !strEQ(name,"$_") ? PL_curstash : PL_defstash) - : Nullhv + : NULL ), 0 /* not fake */ ); @@ -271,24 +274,27 @@ Perl_op_free(pTHX_ OP *o) { dVAR; OPCODE type; - PADOFFSET refcnt; if (!o || o->op_static) return; + type = o->op_type; if (o->op_private & OPpREFCOUNTED) { - switch (o->op_type) { + switch (type) { case OP_LEAVESUB: case OP_LEAVESUBLV: case OP_LEAVEEVAL: case OP_LEAVE: case OP_SCOPE: case OP_LEAVEWRITE: + { + PADOFFSET refcnt; OP_REFCNT_LOCK; refcnt = OpREFCNT_dec(o); OP_REFCNT_UNLOCK; if (refcnt) return; + } break; default: break; @@ -302,7 +308,6 @@ Perl_op_free(pTHX_ OP *o) op_free(kid); } } - type = o->op_type; if (type == OP_NULL) type = (OPCODE)o->op_targ; @@ -315,7 +320,7 @@ Perl_op_free(pTHX_ OP *o) FreeOp(o); #ifdef DEBUG_LEAKING_SCALARS if (PL_op == o) - PL_op = Nullop; + PL_op = NULL; #endif } @@ -324,8 +329,29 @@ Perl_op_clear(pTHX_ OP *o) { dVAR; +#ifdef PERL_MAD + /* if (o->op_madprop && o->op_madprop->mad_next) + abort(); */ + /* FIXME for MAD - if I uncomment these two lines t/op/pack.t fails with + "modification of a read only value" for a reason I can't fathom why. + It's the "" stringification of $_, where $_ was set to '' in a foreach + loop, but it defies simplification into a small test case. + However, commenting them out has caused ext/List/Util/t/weak.t to fail + the last test. */ + /* + mad_free(o->op_madprop); + o->op_madprop = 0; + */ +#endif + + retry: switch (o->op_type) { case OP_NULL: /* Was holding old type, if any. */ + if (PL_madskills && o->op_targ != OP_NULL) { + o->op_type = o->op_targ; + o->op_targ = 0; + goto retry; + } case OP_ENTEREVAL: /* Was holding hints. */ o->op_targ = 0; break; @@ -348,14 +374,14 @@ Perl_op_clear(pTHX_ OP *o) } #else SvREFCNT_dec(cSVOPo->op_sv); - cSVOPo->op_sv = Nullsv; + cSVOPo->op_sv = NULL; #endif } break; case OP_METHOD_NAMED: case OP_CONST: SvREFCNT_dec(cSVOPo->op_sv); - cSVOPo->op_sv = Nullsv; + cSVOPo->op_sv = NULL; #ifdef USE_ITHREADS /** Bug #15654 Even if op_clear does a pad_free for the target of the op, @@ -379,11 +405,11 @@ Perl_op_clear(pTHX_ OP *o) case OP_TRANS: if (o->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)) { SvREFCNT_dec(cSVOPo->op_sv); - cSVOPo->op_sv = Nullsv; + cSVOPo->op_sv = NULL; } else { Safefree(cPVOPo->op_pv); - cPVOPo->op_pv = Nullch; + cPVOPo->op_pv = NULL; } break; case OP_SUBST: @@ -405,7 +431,7 @@ Perl_op_clear(pTHX_ OP *o) clear_pmop: { HV * const pmstash = PmopSTASH(cPMOPo); - if (pmstash && SvREFCNT(pmstash)) { + if (pmstash && !SvIS_FREED(pmstash)) { MAGIC * const mg = mg_find((SV*)pmstash, PERL_MAGIC_symtab); if (mg) { PMOP *pmop = (PMOP*) mg->mg_obj; @@ -425,7 +451,7 @@ clear_pmop: } PmopSTASH_free(cPMOPo); } - cPMOPo->op_pmreplroot = Nullop; + cPMOPo->op_pmreplroot = NULL; /* we use the "SAFE" version of the PM_ macros here * since sv_clean_all might release some PMOPs * after PL_regex_padav has been cleared @@ -433,7 +459,7 @@ clear_pmop: * happen before sv_clean_all */ ReREFCNT_dec(PM_GETRE_SAFE(cPMOPo)); - PM_SETRE_SAFE(cPMOPo, (REGEXP*)NULL); + PM_SETRE_SAFE(cPMOPo, NULL); #ifdef USE_ITHREADS if(PL_regex_pad) { /* We could be in destruction */ av_push((AV*) PL_regex_pad[0],(SV*) PL_regex_pad[(cPMOPo)->op_pmoffset]); @@ -461,11 +487,7 @@ S_cop_free(pTHX_ COP* cop) SvREFCNT_dec(cop->cop_warnings); if (! specialCopIO(cop->cop_io)) { #ifdef USE_ITHREADS -#if 0 - STRLEN len; - char *s = SvPV(cop->cop_io,len); - Perl_warn(aTHX_ "io='%.*s'",(int) len,s); /* ??? --jhi */ -#endif + /*EMPTY*/ #else SvREFCNT_dec(cop->cop_io); #endif @@ -478,7 +500,8 @@ Perl_op_null(pTHX_ OP *o) dVAR; if (o->op_type == OP_NULL) return; - op_clear(o); + if (!PL_madskills) + op_clear(o); o->op_targ = o->op_type; o->op_type = OP_NULL; o->op_ppaddr = PL_ppaddr[OP_NULL]; @@ -488,6 +511,7 @@ void Perl_op_refcnt_lock(pTHX) { dVAR; + PERL_UNUSED_CONTEXT; OP_REFCNT_LOCK; } @@ -495,6 +519,7 @@ void Perl_op_refcnt_unlock(pTHX) { dVAR; + PERL_UNUSED_CONTEXT; OP_REFCNT_UNLOCK; } @@ -505,19 +530,25 @@ Perl_op_refcnt_unlock(pTHX) OP * Perl_linklist(pTHX_ OP *o) { + OP *first; if (o->op_next) return o->op_next; /* establish postfix order */ - if (cUNOPo->op_first) { + first = cUNOPo->op_first; + if (first) { register OP *kid; - o->op_next = LINKLIST(cUNOPo->op_first); - for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { - if (kid->op_sibling) + o->op_next = LINKLIST(first); + kid = first; + for (;;) { + if (kid->op_sibling) { kid->op_next = LINKLIST(kid->op_sibling); - else + kid = kid->op_sibling; + } else { kid->op_next = o; + break; + } } } else @@ -540,6 +571,7 @@ Perl_scalarkids(pTHX_ OP *o) STATIC OP * S_scalarboolean(pTHX_ OP *o) { + dVAR; if (o->op_type == OP_SASSIGN && cBINOPo->op_first->op_type == OP_CONST) { if (ckWARN(WARN_SYNTAX)) { const line_t oldline = CopLINE(PL_curcop); @@ -629,10 +661,25 @@ Perl_scalarvoid(pTHX_ OP *o) { dVAR; OP *kid; - const char* useless = 0; + const char* useless = NULL; SV* sv; U8 want; + /* trailing mad null ops don't count as "there" for void processing */ + if (PL_madskills && + o->op_type != OP_NULL && + o->op_sibling && + o->op_sibling->op_type == OP_NULL) + { + OP *sib; + for (sib = o->op_sibling; + sib && sib->op_type == OP_NULL; + sib = sib->op_sibling) ; + + if (!sib) + return o; + } + if (o->op_type == OP_NEXTSTATE || o->op_type == OP_SETSTATE || o->op_type == OP_DBSTATE @@ -768,6 +815,8 @@ Perl_scalarvoid(pTHX_ OP *o) else { if (ckWARN(WARN_VOID)) { useless = "a constant"; + if (o->op_private & OPpCONST_ARYBASE) + useless = 0; /* don't warn on optimised away booleans, eg * use constant Foo, 5; Foo || print; */ if (cSVOPo->op_private & OPpCONST_SHORTCIRCUIT) @@ -784,9 +833,10 @@ Perl_scalarvoid(pTHX_ OP *o) built upon these three nroff macros being used in void context. The pink camel has the details in the script wrapman near page 319. */ - if (strnEQ(SvPVX_const(sv), "di", 2) || - strnEQ(SvPVX_const(sv), "ds", 2) || - strnEQ(SvPVX_const(sv), "ig", 2)) + const char * const maybe_macro = SvPVX_const(sv); + if (strnEQ(maybe_macro, "di", 2) || + strnEQ(maybe_macro, "ds", 2) || + strnEQ(maybe_macro, "ig", 2)) useless = 0; } } @@ -818,6 +868,8 @@ Perl_scalarvoid(pTHX_ OP *o) case OP_AND: case OP_DOR: case OP_COND_EXPR: + case OP_ENTERGIVEN: + case OP_ENTERWHEN: for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling) scalarvoid(kid); break; @@ -839,6 +891,8 @@ Perl_scalarvoid(pTHX_ OP *o) case OP_LEAVELOOP: case OP_LINESEQ: case OP_LIST: + case OP_LEAVEGIVEN: + case OP_LEAVEWHEN: for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) scalarvoid(kid); break; @@ -953,6 +1007,7 @@ Perl_list(pTHX_ OP *o) OP * Perl_scalarseq(pTHX_ OP *o) { + dVAR; if (o) { if (o->op_type == OP_LINESEQ || o->op_type == OP_SCOPE || @@ -987,7 +1042,7 @@ S_modkids(pTHX_ OP *o, I32 type) return o; } -/* Propagate lvalue ("modifiable") context to an op and it's children. +/* Propagate lvalue ("modifiable") context to an op and its children. * 'type' represents the context type, roughly based on the type of op that * would do the modifying, although local() is represented by OP_NULL. * It's responsible for detecting things that can't be modified, flag @@ -1021,8 +1076,9 @@ Perl_mod(pTHX_ OP *o, I32 type) PL_modcount++; return o; case OP_CONST: - if (!(o->op_private & (OPpCONST_ARYBASE))) + if (!(o->op_private & OPpCONST_ARYBASE)) goto nomod; + localize = 0; if (PL_eval_start && PL_eval_start->op_type == OP_CONST) { PL_compiling.cop_arybase = (I32)SvIV(cSVOPx(PL_eval_start)->op_sv); PL_eval_start = 0; @@ -1037,13 +1093,17 @@ Perl_mod(pTHX_ OP *o, I32 type) Perl_croak(aTHX_ "That use of $[ is unsupported"); break; case OP_STUB: - if (o->op_flags & OPf_PARENS) + if (o->op_flags & OPf_PARENS || PL_madskills) break; goto nomod; case OP_ENTERSUB: if ((type == OP_UNDEF || type == OP_REFGEN) && !(o->op_flags & OPf_STACKED)) { o->op_type = OP_RV2CV; /* entersub => rv2cv */ + /* The default is to set op_private to the number of children, + which for a UNOP such as RV2CV is always 1. And w're using + the bit for a flag in RV2CV, so we need it clear. */ + o->op_private &= ~1; o->op_ppaddr = PL_ppaddr[OP_RV2CV]; assert(cUNOPo->op_first->op_type == OP_NULL); op_null(((LISTOP*)cUNOPo->op_first)->op_first);/* disable pushmark */ @@ -1085,10 +1145,11 @@ Perl_mod(pTHX_ OP *o, I32 type) NewOp(1101, newop, 1, UNOP); newop->op_type = OP_RV2CV; newop->op_ppaddr = PL_ppaddr[OP_RV2CV]; - newop->op_first = Nullop; + newop->op_first = NULL; newop->op_next = (OP*)newop; kid->op_sibling = (OP*)newop; newop->op_private |= OPpLVAL_INTRO; + newop->op_private &= ~1; break; } @@ -1118,11 +1179,12 @@ Perl_mod(pTHX_ OP *o, I32 type) kid->op_next = okid; } else - okid->op_next = Nullop; + okid->op_next = NULL; okid->op_type = OP_RV2CV; okid->op_targ = 0; okid->op_ppaddr = PL_ppaddr[OP_RV2CV]; okid->op_private |= OPpLVAL_INTRO; + okid->op_private &= ~1; break; } @@ -1341,7 +1403,7 @@ Perl_mod(pTHX_ OP *o, I32 type) } STATIC bool -S_scalar_mod_type(pTHX_ const OP *o, I32 type) +S_scalar_mod_type(const OP *o, I32 type) { switch (type) { case OP_SASSIGN: @@ -1388,7 +1450,7 @@ S_scalar_mod_type(pTHX_ const OP *o, I32 type) } STATIC bool -S_is_handle_constructor(pTHX_ const OP *o, I32 numargs) +S_is_handle_constructor(const OP *o, I32 numargs) { switch (o->op_type) { case OP_PIPE_OP: @@ -1404,7 +1466,7 @@ S_is_handle_constructor(pTHX_ const OP *o, I32 numargs) case OP_ACCEPT: if (numargs == 1) return TRUE; - /* FALL THROUGH */ + /* FALLTHROUGH */ default: return FALSE; } @@ -1439,6 +1501,7 @@ Perl_doref(pTHX_ OP *o, I32 type, bool set_op_ref) assert(cUNOPo->op_first->op_type == OP_NULL); op_null(((LISTOP*)cUNOPo->op_first)->op_first); /* disable pushmark */ o->op_flags |= OPf_SPECIAL; + o->op_private &= ~1; } break; @@ -1518,21 +1581,27 @@ Perl_doref(pTHX_ OP *o, I32 type, bool set_op_ref) STATIC OP * S_dup_attrlist(pTHX_ OP *o) { - OP *rop = Nullop; + dVAR; + OP *rop; /* An attrlist is either a simple OP_CONST or an OP_LIST with kids, * where the first kid is OP_PUSHMARK and the remaining ones * are OP_CONST. We need to push the OP_CONST values. */ if (o->op_type == OP_CONST) - rop = newSVOP(OP_CONST, o->op_flags, SvREFCNT_inc(cSVOPo->op_sv)); + rop = newSVOP(OP_CONST, o->op_flags, SvREFCNT_inc_NN(cSVOPo->op_sv)); +#ifdef PERL_MAD + else if (o->op_type == OP_NULL) + rop = Nullop; +#endif else { assert((o->op_type == OP_LIST) && (o->op_flags & OPf_KIDS)); + rop = NULL; for (o = cLISTOPo->op_first; o; o=o->op_sibling) { if (o->op_type == OP_CONST) rop = append_elem(OP_LIST, rop, newSVOP(OP_CONST, o->op_flags, - SvREFCNT_inc(cSVOPo->op_sv))); + SvREFCNT_inc_NN(cSVOPo->op_sv))); } } return rop; @@ -1554,19 +1623,17 @@ S_apply_attrs(pTHX_ HV *stash, SV *target, OP *attrs, bool for_my) if (for_my) { /* Don't force the C if we don't need it. */ - SV * const * const svp = hv_fetch(GvHVn(PL_incgv), ATTRSMODULE_PM, - sizeof(ATTRSMODULE_PM)-1, 0); + SV * const * const svp = hv_fetchs(GvHVn(PL_incgv), ATTRSMODULE_PM, FALSE); if (svp && *svp != &PL_sv_undef) - ; /* already in %INC */ + /*EMPTY*/; /* already in %INC */ else Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT, - newSVpvn(ATTRSMODULE, sizeof(ATTRSMODULE)-1), - Nullsv); + newSVpvs(ATTRSMODULE), NULL); } else { Perl_load_module(aTHX_ PERL_LOADMOD_IMPORT_OPS, - newSVpvn(ATTRSMODULE, sizeof(ATTRSMODULE)-1), - Nullsv, + newSVpvs(ATTRSMODULE), + NULL, prepend_elem(OP_LIST, newSVOP(OP_CONST, 0, stashsv), prepend_elem(OP_LIST, @@ -1580,6 +1647,7 @@ S_apply_attrs(pTHX_ HV *stash, SV *target, OP *attrs, bool for_my) STATIC void S_apply_attrs_my(pTHX_ HV *stash, OP *target, OP *attrs, OP **imopsp) { + dVAR; OP *pack, *imop, *arg; SV *meth, *stashsv; @@ -1594,7 +1662,7 @@ S_apply_attrs_my(pTHX_ HV *stash, OP *target, OP *attrs, OP **imopsp) apply_attrs(stash, PAD_SV(target->op_targ), attrs, TRUE); /* Need package name for method call. */ - pack = newSVOP(OP_CONST, 0, newSVpvn(ATTRSMODULE, sizeof(ATTRSMODULE)-1)); + pack = newSVOP(OP_CONST, 0, newSVpvs(ATTRSMODULE)); /* Build up the real arg-list. */ stashsv = stash ? newSVhek(HvNAME_HEK(stash)) : &PL_sv_no; @@ -1609,7 +1677,7 @@ S_apply_attrs_my(pTHX_ HV *stash, OP *target, OP *attrs, OP **imopsp) dup_attrlist(attrs))); /* Fake up a method call to import */ - meth = newSVpvn_share("import", 6, 0); + meth = newSVpvs_share("import"); imop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL|OPf_WANT_VOID, append_elem(OP_LIST, prepend_elem(OP_LIST, pack, list(arg)), @@ -1641,7 +1709,7 @@ void Perl_apply_attrs_string(pTHX_ const char *stashpv, CV *cv, const char *attrstr, STRLEN len) { - OP *attrs = Nullop; + OP *attrs = NULL; if (!len) { len = strlen(attrstr); @@ -1659,8 +1727,8 @@ Perl_apply_attrs_string(pTHX_ const char *stashpv, CV *cv, } Perl_load_module(aTHX_ PERL_LOADMOD_IMPORT_OPS, - newSVpvn(ATTRSMODULE, sizeof(ATTRSMODULE)-1), - Nullsv, prepend_elem(OP_LIST, + newSVpvs(ATTRSMODULE), + NULL, prepend_elem(OP_LIST, newSVOP(OP_CONST, 0, newSVpv(stashpv,0)), prepend_elem(OP_LIST, newSVOP(OP_CONST, 0, @@ -1671,17 +1739,27 @@ Perl_apply_attrs_string(pTHX_ const char *stashpv, CV *cv, STATIC OP * S_my_kid(pTHX_ OP *o, OP *attrs, OP **imopsp) { + dVAR; I32 type; if (!o || PL_error_count) return o; + if (PL_madskills && type == OP_NULL && o->op_flags & OPf_KIDS) { + (void)my_kid(cUNOPo->op_first, attrs, imopsp); + return o; + } + type = o->op_type; if (type == OP_LIST) { OP *kid; for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) my_kid(kid, attrs, imopsp); - } else if (type == OP_UNDEF) { + } else if (type == OP_UNDEF +#ifdef PERL_MAD + || type == OP_STUB +#endif + ) { return o; } else if (type == OP_RV2SV || /* "our" declaration */ type == OP_RV2AV || @@ -1692,7 +1770,7 @@ S_my_kid(pTHX_ OP *o, OP *attrs, OP **imopsp) } else if (attrs) { GV * const gv = cGVOPx_gv(cUNOPo->op_first); PL_in_my = FALSE; - PL_in_my_stash = Nullhv; + PL_in_my_stash = NULL; apply_attrs(GvSTASH(gv), (type == OP_RV2SV ? GvSV(gv) : type == OP_RV2AV ? (SV*)GvAV(gv) : @@ -1716,7 +1794,7 @@ S_my_kid(pTHX_ OP *o, OP *attrs, OP **imopsp) HV *stash; PL_in_my = FALSE; - PL_in_my_stash = Nullhv; + PL_in_my_stash = NULL; /* check for C when deciding package */ stash = PAD_COMPNAME_TYPE(o->op_targ); @@ -1732,7 +1810,8 @@ S_my_kid(pTHX_ OP *o, OP *attrs, OP **imopsp) OP * Perl_my_attrs(pTHX_ OP *o, OP *attrs) { - OP *rops = Nullop; + dVAR; + OP *rops; int maybe_scalar = 0; /* [perl #17376]: this appears to be premature, and results in code such as @@ -1747,6 +1826,7 @@ Perl_my_attrs(pTHX_ OP *o, OP *attrs) #endif if (attrs) SAVEFREEOP(attrs); + rops = NULL; o = my_kid(o, attrs, &rops); if (rops) { if (maybe_scalar && o->op_type == OP_PADSV) { @@ -1757,19 +1837,20 @@ Perl_my_attrs(pTHX_ OP *o, OP *attrs) o = append_list(OP_LIST, (LISTOP*)o, (LISTOP*)rops); } PL_in_my = FALSE; - PL_in_my_stash = Nullhv; + PL_in_my_stash = NULL; return o; } OP * Perl_my(pTHX_ OP *o) { - return my_attrs(o, Nullop); + return my_attrs(o, NULL); } OP * Perl_sawparens(pTHX_ OP *o) { + PERL_UNUSED_CONTEXT; if (o) o->op_flags |= OPf_PARENS; return o; @@ -1866,7 +1947,7 @@ Perl_scope(pTHX_ OP *o) } } else - o = newLISTOP(OP_SCOPE, 0, o, Nullop); + o = newLISTOP(OP_SCOPE, 0, o, NULL); } return o; } @@ -1874,6 +1955,7 @@ Perl_scope(pTHX_ OP *o) int Perl_block_start(pTHX_ int full) { + dVAR; const int retval = PL_savestack_ix; pad_block_start(full); SAVEHINTS(); @@ -1894,6 +1976,7 @@ Perl_block_start(pTHX_ int full) OP* Perl_block_end(pTHX_ I32 floor, OP *seq) { + dVAR; const int needblockscope = PL_hints & HINT_BLOCK_SCOPE; OP* const retval = scalarseq(seq); LEAVE_SCOPE(floor); @@ -1907,8 +1990,9 @@ Perl_block_end(pTHX_ I32 floor, OP *seq) STATIC OP * S_newDEFSVOP(pTHX) { + dVAR; const I32 offset = pad_findmy("$_"); - if (offset == NOT_IN_PAD || PAD_COMPNAME_FLAGS(offset) & SVpad_OUR) { + if (offset == NOT_IN_PAD || PAD_COMPNAME_FLAGS_isOUR(offset)) { return newSVREF(newGVOP(OP_GV, 0, PL_defgv)); } else { @@ -1921,6 +2005,7 @@ S_newDEFSVOP(pTHX) void Perl_newPROG(pTHX_ OP *o) { + dVAR; if (PL_in_eval) { if (PL_eval_root) return; @@ -1966,13 +2051,14 @@ Perl_newPROG(pTHX_ OP *o) OP * Perl_localize(pTHX_ OP *o, I32 lex) { + dVAR; if (o->op_flags & OPf_PARENS) /* [perl #17376]: this appears to be premature, and results in code such as C< our(%x); > executing in list mode rather than void mode */ #if 0 list(o); #else - ; + /*EMPTY*/; #endif else { if ( PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == ',' @@ -2011,7 +2097,7 @@ Perl_localize(pTHX_ OP *o, I32 lex) else o = mod(o, OP_NULL); /* a bit kludgey */ PL_in_my = FALSE; - PL_in_my_stash = Nullhv; + PL_in_my_stash = NULL; return o; } @@ -2019,8 +2105,9 @@ OP * Perl_jmaybe(pTHX_ OP *o) { if (o->op_type == OP_LIST) { - OP *o2; - o2 = newSVREF(newGVOP(OP_GV, 0, gv_fetchpv(";", TRUE, SVt_PV))), + OP * const o2 + = newSVREF(newGVOP(OP_GV, 0, gv_fetchpvs(";", GV_ADD|GV_NOTQUAL, + SVt_PV))); o = convert(OP_JOIN, 0, prepend_elem(OP_LIST, o2, o)); } return o; @@ -2031,6 +2118,7 @@ Perl_fold_constants(pTHX_ register OP *o) { dVAR; register OP *curop; + OP *newop; I32 type = o->op_type; SV *sv; @@ -2056,7 +2144,6 @@ Perl_fold_constants(pTHX_ register OP *o) /* XXX might want a ck_negate() for this */ cUNOPo->op_first->op_private &= ~OPpCONST_STRICT; break; - case OP_SPRINTF: case OP_UCFIRST: case OP_LCFIRST: case OP_UC: @@ -2094,13 +2181,19 @@ Perl_fold_constants(pTHX_ register OP *o) if (o->op_targ && sv == PAD_SV(o->op_targ)) /* grab pad temp? */ pad_swipe(o->op_targ, FALSE); else if (SvTEMP(sv)) { /* grab mortal temp? */ - (void)SvREFCNT_inc(sv); + SvREFCNT_inc_simple_void(sv); SvTEMP_off(sv); } + +#ifndef PERL_MAD op_free(o); +#endif if (type == OP_RV2GV) - return newGVOP(OP_GV, 0, (GV*)sv); - return newSVOP(OP_CONST, 0, sv); + newop = newGVOP(OP_GV, 0, (GV*)sv); + else + newop = newSVOP(OP_CONST, 0, sv); + op_getmad(o,newop,'f'); + return newop; nope: return o; @@ -2132,8 +2225,12 @@ Perl_gen_constant_list(pTHX_ register OP *o) o->op_flags |= OPf_PARENS; /* and flatten \(1..2,3) */ o->op_opt = 0; /* needs to be revisited in peep() */ curop = ((UNOP*)o)->op_first; - ((UNOP*)o)->op_first = newSVOP(OP_CONST, 0, SvREFCNT_inc(*PL_stack_sp--)); + ((UNOP*)o)->op_first = newSVOP(OP_CONST, 0, SvREFCNT_inc_NN(*PL_stack_sp--)); +#ifdef PERL_MAD + op_getmad(curop,o,'O'); +#else op_free(curop); +#endif linklist(o); return list(o); } @@ -2143,7 +2240,7 @@ Perl_convert(pTHX_ I32 type, I32 flags, OP *o) { dVAR; if (!o || o->op_type != OP_LIST) - o = newLISTOP(OP_LIST, 0, o, Nullop); + o = newLISTOP(OP_LIST, 0, o, NULL); else o->op_flags &= ~OPf_WANT; @@ -2207,6 +2304,22 @@ Perl_append_list(pTHX_ I32 type, LISTOP *first, LISTOP *last) first->op_last = last->op_last; first->op_flags |= (last->op_flags & OPf_KIDS); +#ifdef PERL_MAD + if (last->op_first && first->op_madprop) { + MADPROP *mp = last->op_first->op_madprop; + if (mp) { + while (mp->mad_next) + mp = mp->mad_next; + mp->mad_next = first->op_madprop; + } + else { + last->op_first->op_madprop = first->op_madprop; + } + } + first->op_madprop = last->op_madprop; + last->op_madprop = 0; +#endif + FreeOp(last); return (OP*)first; @@ -2245,6 +2358,246 @@ Perl_prepend_elem(pTHX_ I32 type, OP *first, OP *last) /* Constructors */ +#ifdef PERL_MAD + +TOKEN * +Perl_newTOKEN(pTHX_ I32 optype, YYSTYPE lval, MADPROP* madprop) +{ + TOKEN *tk; + Newxz(tk, 1, TOKEN); + tk->tk_type = (OPCODE)optype; + tk->tk_type = 12345; + tk->tk_lval = lval; + tk->tk_mad = madprop; + return tk; +} + +void +Perl_token_free(pTHX_ TOKEN* tk) +{ + if (tk->tk_type != 12345) + return; + mad_free(tk->tk_mad); + Safefree(tk); +} + +void +Perl_token_getmad(pTHX_ TOKEN* tk, OP* o, char slot) +{ + MADPROP* mp; + MADPROP* tm; + if (tk->tk_type != 12345) { + Perl_warner(aTHX_ packWARN(WARN_MISC), + "Invalid TOKEN object ignored"); + return; + } + tm = tk->tk_mad; + if (!tm) + return; + + /* faked up qw list? */ + if (slot == '(' && + tm->mad_type == MAD_SV && + SvPVX((SV*)tm->mad_val)[0] == 'q') + slot = 'x'; + + if (o) { + mp = o->op_madprop; + if (mp) { + for (;;) { + /* pretend constant fold didn't happen? */ + if (mp->mad_key == 'f' && + (o->op_type == OP_CONST || + o->op_type == OP_GV) ) + { + token_getmad(tk,(OP*)mp->mad_val,slot); + return; + } + if (!mp->mad_next) + break; + mp = mp->mad_next; + } + mp->mad_next = tm; + mp = mp->mad_next; + } + else { + o->op_madprop = tm; + mp = o->op_madprop; + } + if (mp->mad_key == 'X') + mp->mad_key = slot; /* just change the first one */ + + tk->tk_mad = 0; + } + else + mad_free(tm); + Safefree(tk); +} + +void +Perl_op_getmad_weak(pTHX_ OP* from, OP* o, char slot) +{ + MADPROP* mp; + if (!from) + return; + if (o) { + mp = o->op_madprop; + if (mp) { + for (;;) { + /* pretend constant fold didn't happen? */ + if (mp->mad_key == 'f' && + (o->op_type == OP_CONST || + o->op_type == OP_GV) ) + { + op_getmad(from,(OP*)mp->mad_val,slot); + return; + } + if (!mp->mad_next) + break; + mp = mp->mad_next; + } + mp->mad_next = newMADPROP(slot,MAD_OP,from,0); + } + else { + o->op_madprop = newMADPROP(slot,MAD_OP,from,0); + } + } +} + +void +Perl_op_getmad(pTHX_ OP* from, OP* o, char slot) +{ + MADPROP* mp; + if (!from) + return; + if (o) { + mp = o->op_madprop; + if (mp) { + for (;;) { + /* pretend constant fold didn't happen? */ + if (mp->mad_key == 'f' && + (o->op_type == OP_CONST || + o->op_type == OP_GV) ) + { + op_getmad(from,(OP*)mp->mad_val,slot); + return; + } + if (!mp->mad_next) + break; + mp = mp->mad_next; + } + mp->mad_next = newMADPROP(slot,MAD_OP,from,1); + } + else { + o->op_madprop = newMADPROP(slot,MAD_OP,from,1); + } + } + else { + PerlIO_printf(PerlIO_stderr(), + "DESTROYING op = %0"UVxf"\n", PTR2UV(from)); + op_free(from); + } +} + +void +Perl_prepend_madprops(pTHX_ MADPROP* mp, OP* o, char slot) +{ + MADPROP* tm; + if (!mp || !o) + return; + if (slot) + mp->mad_key = slot; + tm = o->op_madprop; + o->op_madprop = mp; + for (;;) { + if (!mp->mad_next) + break; + mp = mp->mad_next; + } + mp->mad_next = tm; +} + +void +Perl_append_madprops(pTHX_ MADPROP* tm, OP* o, char slot) +{ + if (!o) + return; + addmad(tm, &(o->op_madprop), slot); +} + +void +Perl_addmad(pTHX_ MADPROP* tm, MADPROP** root, char slot) +{ + MADPROP* mp; + if (!tm || !root) + return; + if (slot) + tm->mad_key = slot; + mp = *root; + if (!mp) { + *root = tm; + return; + } + for (;;) { + if (!mp->mad_next) + break; + mp = mp->mad_next; + } + mp->mad_next = tm; +} + +MADPROP * +Perl_newMADsv(pTHX_ char key, SV* sv) +{ + return newMADPROP(key, MAD_SV, sv, 0); +} + +MADPROP * +Perl_newMADPROP(pTHX_ char key, char type, void* val, I32 vlen) +{ + MADPROP *mp; + Newxz(mp, 1, MADPROP); + mp->mad_next = 0; + mp->mad_key = key; + mp->mad_vlen = vlen; + mp->mad_type = type; + mp->mad_val = val; +/* PerlIO_printf(PerlIO_stderr(), "NEW mp = %0x\n", mp); */ + return mp; +} + +void +Perl_mad_free(pTHX_ MADPROP* mp) +{ +/* PerlIO_printf(PerlIO_stderr(), "FREE mp = %0x\n", mp); */ + if (!mp) + return; + if (mp->mad_next) + mad_free(mp->mad_next); +/* if (PL_lex_state != LEX_NOTPARSING && mp->mad_vlen) + PerlIO_printf(PerlIO_stderr(), "DESTROYING '%c'=<%s>\n", mp->mad_key & 255, mp->mad_val); */ + switch (mp->mad_type) { + case MAD_NULL: + break; + case MAD_PV: + Safefree((char*)mp->mad_val); + break; + case MAD_OP: + if (mp->mad_vlen) /* vlen holds "strong/weak" boolean */ + op_free((OP*)mp->mad_val); + break; + case MAD_SV: + sv_free((SV*)mp->mad_val); + break; + default: + PerlIO_printf(PerlIO_stderr(), "Unrecognized mad\n"); + break; + } + Safefree(mp); +} + +#endif + OP * Perl_newNULLLIST(pTHX) { @@ -2255,7 +2608,7 @@ OP * Perl_force_list(pTHX_ OP *o) { if (!o || o->op_type != OP_LIST) - o = newLISTOP(OP_LIST, 0, o, Nullop); + o = newLISTOP(OP_LIST, 0, o, NULL); op_null(o); return o; } @@ -2369,7 +2722,10 @@ Perl_newBINOP(pTHX_ I32 type, I32 flags, OP *first, OP *last) return fold_constants((OP *)binop); } -static int uvcompare(const void *a, const void *b) __attribute__nonnull__(1) __attribute__nonnull__(2) __attribute__pure__; +static int uvcompare(const void *a, const void *b) + __attribute__nonnull__(1) + __attribute__nonnull__(2) + __attribute__pure__; static int uvcompare(const void *a, const void *b) { if (*((const UV *)a) < (*(const UV *)b)) @@ -2386,6 +2742,7 @@ static int uvcompare(const void *a, const void *b) OP * Perl_pmtrans(pTHX_ OP *o, OP *expr, OP *repl) { + dVAR; SV * const tstr = ((SVOP*)expr)->op_sv; SV * const rstr = ((SVOP*)repl)->op_sv; STRLEN tlen; @@ -2409,8 +2766,8 @@ Perl_pmtrans(pTHX_ OP *o, OP *expr, OP *repl) o->op_private |= OPpTRANS_TO_UTF; if (o->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)) { - SV* const listsv = newSVpvn("# comment\n",10); - SV* transv = 0; + SV* const listsv = newSVpvs("# comment\n"); + SV* transv = NULL; const U8* tend = t + tlen; const U8* rend = r + rlen; STRLEN ulen; @@ -2454,7 +2811,7 @@ Perl_pmtrans(pTHX_ OP *o, OP *expr, OP *repl) UV nextmin = 0; Newx(cp, 2*tlen, UV); i = 0; - transv = newSVpvn("",0); + transv = newSVpvs(""); while (t < tend) { cp[2*i] = utf8n_to_uvuni(t, tend-t, &ulen, 0); t += ulen; @@ -2595,8 +2952,7 @@ Perl_pmtrans(pTHX_ OP *o, OP *expr, OP *repl) Safefree(cPVOPo->op_pv); cSVOPo->op_sv = (SV*)swash_init("utf8", "", listsv, bits, none); SvREFCNT_dec(listsv); - if (transv) - SvREFCNT_dec(transv); + SvREFCNT_dec(transv); if (!del && havefinal && rlen) (void)hv_store((HV*)SvRV((cSVOPo->op_sv)), "FINAL", 5, @@ -2605,13 +2961,16 @@ Perl_pmtrans(pTHX_ OP *o, OP *expr, OP *repl) if (grows) o->op_private |= OPpTRANS_GROWS; - if (tsave) - Safefree(tsave); - if (rsave) - Safefree(rsave); + Safefree(tsave); + Safefree(rsave); +#ifdef PERL_MAD + op_getmad(expr,o,'e'); + op_getmad(repl,o,'r'); +#else op_free(expr); op_free(repl); +#endif return o; } @@ -2681,8 +3040,13 @@ Perl_pmtrans(pTHX_ OP *o, OP *expr, OP *repl) } if (grows) o->op_private |= OPpTRANS_GROWS; +#ifdef PERL_MAD + op_getmad(expr,o,'e'); + op_getmad(repl,o,'r'); +#else op_free(expr); op_free(repl); +#endif return o; } @@ -2713,7 +3077,7 @@ Perl_newPMOP(pTHX_ I32 type, I32 flags) sv_setiv(repointer,0); } else { SV * const repointer = newSViv(0); - av_push(PL_regex_padav,SvREFCNT_inc(repointer)); + av_push(PL_regex_padav, SvREFCNT_inc_simple_NN(repointer)); pmop->op_pmoffset = av_len(PL_regex_padav); PL_regex_pad = AvARRAY(PL_regex_padav); } @@ -2753,7 +3117,7 @@ Perl_pmruntime(pTHX_ OP *o, OP *expr, bool isreg) PMOP *pm; LOGOP *rcop; I32 repl_has_vars = 0; - OP* repl = Nullop; + OP* repl = NULL; bool reglist; if (o->op_type == OP_SUBST || o->op_type == OP_TRANS) { @@ -2763,7 +3127,7 @@ Perl_pmruntime(pTHX_ OP *o, OP *expr, bool isreg) kid = cLISTOPx(expr)->op_first; while (kid->op_sibling != repl) kid = kid->op_sibling; - kid->op_sibling = Nullop; + kid->op_sibling = NULL; cLISTOPx(expr)->op_last = kid; } @@ -2771,10 +3135,10 @@ Perl_pmruntime(pTHX_ OP *o, OP *expr, bool isreg) cLISTOPx(expr)->op_first->op_sibling == cLISTOPx(expr)->op_last) { /* convert single element list to element */ - OP* oe = expr; + OP* const oe = expr; expr = cLISTOPx(oe)->op_first->op_sibling; - cLISTOPx(oe)->op_first->op_sibling = Nullop; - cLISTOPx(oe)->op_last = Nullop; + cLISTOPx(oe)->op_first->op_sibling = NULL; + cLISTOPx(oe)->op_last = NULL; op_free(oe); } @@ -2791,7 +3155,7 @@ Perl_pmruntime(pTHX_ OP *o, OP *expr, bool isreg) if (expr->op_type == OP_CONST) { STRLEN plen; - SV *pat = ((SVOP*)expr)->op_sv; + SV * const pat = ((SVOP*)expr)->op_sv; const char *p = SvPV_const(pat, plen); if ((o->op_flags & OPf_SPECIAL) && (*p == ' ' && p[1] == '\0')) { U32 was_readonly = SvREADONLY(pat); @@ -2819,7 +3183,11 @@ Perl_pmruntime(pTHX_ OP *o, OP *expr, bool isreg) PM_SETRE(pm, CALLREGCOMP(aTHX_ (char*)p, (char*)p + plen, pm)); if (strEQ("\\s+", PM_GETRE(pm)->precomp)) pm->op_pmflags |= PMf_WHITE; +#ifdef PERL_MAD + op_getmad(expr,(OP*)pm,'e'); +#else op_free(expr); +#endif } else { if (pm->op_pmflags & PMf_KEEP || !(PL_hints & HINT_RE_EVAL)) @@ -2859,18 +3227,18 @@ Perl_pmruntime(pTHX_ OP *o, OP *expr, bool isreg) if (repl) { OP *curop; if (pm->op_pmflags & PMf_EVAL) { - curop = 0; + curop = NULL; if (CopLINE(PL_curcop) < (line_t)PL_multi_end) CopLINE_set(PL_curcop, (line_t)PL_multi_end); } else if (repl->op_type == OP_CONST) curop = repl; else { - OP *lastop = 0; + OP *lastop = NULL; for (curop = LINKLIST(repl); curop!=repl; curop = LINKLIST(curop)) { if (PL_opargs[curop->op_type] & OA_DANGEROUS) { if (curop->op_type == OP_GV) { - GV *gv = cGVOPx_gv(curop); + GV * const gv = cGVOPx_gv(curop); repl_has_vars = 1; if (strchr("&`'123456789+-\016\022", *GvENAME(gv))) break; @@ -2891,7 +3259,7 @@ Perl_pmruntime(pTHX_ OP *o, OP *expr, bool isreg) repl_has_vars = 1; } else if (curop->op_type == OP_PUSHRE) - ; /* Okay here, dangerous in newASSIGNOP */ + /*EMPTY*/; /* Okay here, dangerous in newASSIGNOP */ else break; } @@ -2979,9 +3347,9 @@ Perl_newGVOP(pTHX_ I32 type, I32 flags, GV *gv) #ifdef USE_ITHREADS if (gv) GvIN_PAD_on(gv); - return newPADOP(type, flags, SvREFCNT_inc(gv)); + return newPADOP(type, flags, SvREFCNT_inc_simple(gv)); #else - return newSVOP(type, flags, SvREFCNT_inc(gv)); + return newSVOP(type, flags, SvREFCNT_inc_simple(gv)); #endif } @@ -3003,11 +3371,19 @@ Perl_newPVOP(pTHX_ I32 type, I32 flags, char *pv) return CHECKOP(type, pvop); } +#ifdef PERL_MAD +OP* +#else void +#endif Perl_package(pTHX_ OP *o) { + dVAR; const char *name; STRLEN len; +#ifdef PERL_MAD + OP *pegop; +#endif save_hptr(&PL_curstash); save_item(PL_curstname); @@ -3015,28 +3391,53 @@ Perl_package(pTHX_ OP *o) name = SvPV_const(cSVOPo->op_sv, len); PL_curstash = gv_stashpvn(name, len, TRUE); sv_setpvn(PL_curstname, name, len); - op_free(o); PL_hints |= HINT_BLOCK_SCOPE; PL_copline = NOLINE; PL_expect = XSTATE; + +#ifndef PERL_MAD + op_free(o); +#else + if (!PL_madskills) { + op_free(o); + return Nullop; + } + + pegop = newOP(OP_NULL,0); + op_getmad(o,pegop,'P'); + return pegop; +#endif } +#ifdef PERL_MAD +OP* +#else void +#endif Perl_utilize(pTHX_ int aver, I32 floor, OP *version, OP *idop, OP *arg) { + dVAR; OP *pack; OP *imop; OP *veop; +#ifdef PERL_MAD + OP *pegop = newOP(OP_NULL,0); +#endif if (idop->op_type != OP_CONST) Perl_croak(aTHX_ "Module name must be constant"); - veop = Nullop; + if (PL_madskills) + op_getmad(idop,pegop,'U'); + + veop = NULL; if (version) { SV * const vesv = ((SVOP*)version)->op_sv; + if (PL_madskills) + op_getmad(version,pegop,'V'); if (!arg && !SvNIOKp(vesv)) { arg = version; } @@ -3051,7 +3452,7 @@ Perl_utilize(pTHX_ int aver, I32 floor, OP *version, OP *idop, OP *arg) pack = newSVOP(OP_CONST, 0, newSVsv(((SVOP*)idop)->op_sv)); /* Fake up a method call to VERSION */ - meth = newSVpvn_share("VERSION", 7, 0); + meth = newSVpvs_share("VERSION"); veop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL, append_elem(OP_LIST, prepend_elem(OP_LIST, pack, list(version)), @@ -3060,22 +3461,28 @@ Perl_utilize(pTHX_ int aver, I32 floor, OP *version, OP *idop, OP *arg) } /* Fake up an import/unimport */ - if (arg && arg->op_type == OP_STUB) + if (arg && arg->op_type == OP_STUB) { + if (PL_madskills) + op_getmad(arg,pegop,'S'); imop = arg; /* no import on explicit () */ + } else if (SvNIOKp(((SVOP*)idop)->op_sv)) { - imop = Nullop; /* use 5.0; */ + imop = NULL; /* use 5.0; */ if (!aver) idop->op_private |= OPpCONST_NOVER; } else { SV *meth; + if (PL_madskills) + op_getmad(arg,pegop,'A'); + /* Make copy of idop so we don't free it twice */ pack = newSVOP(OP_CONST, 0, newSVsv(((SVOP*)idop)->op_sv)); /* Fake up a method call to import/unimport */ meth = aver - ? newSVpvn_share("import",6, 0) : newSVpvn_share("unimport", 8, 0); + ? newSVpvs_share("import") : newSVpvs_share("unimport"); imop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL, append_elem(OP_LIST, prepend_elem(OP_LIST, pack, list(arg)), @@ -3084,14 +3491,14 @@ Perl_utilize(pTHX_ int aver, I32 floor, OP *version, OP *idop, OP *arg) /* Fake up the BEGIN {}, which does its thing immediately. */ newATTRSUB(floor, - newSVOP(OP_CONST, 0, newSVpvn_share("BEGIN", 5, 0)), - Nullop, - Nullop, + newSVOP(OP_CONST, 0, newSVpvs_share("BEGIN")), + NULL, + NULL, append_elem(OP_LINESEQ, append_elem(OP_LINESEQ, - newSTATEOP(0, Nullch, newUNOP(OP_REQUIRE, 0, idop)), - newSTATEOP(0, Nullch, veop)), - newSTATEOP(0, Nullch, imop) )); + newSTATEOP(0, NULL, newUNOP(OP_REQUIRE, 0, idop)), + newSTATEOP(0, NULL, veop)), + newSTATEOP(0, NULL, imop) )); /* The "did you use incorrect case?" warning used to be here. * The problem is that on case-insensitive filesystems one @@ -3114,6 +3521,15 @@ Perl_utilize(pTHX_ int aver, I32 floor, OP *version, OP *idop, OP *arg) PL_copline = NOLINE; PL_expect = XSTATE; PL_cop_seqmax++; /* Purely for B::*'s benefit */ + +#ifdef PERL_MAD + if (!PL_madskills) { + /* FIXME - don't allocate pegop if !PL_madskills */ + op_free(pegop); + return Nullop; + } + return pegop; +#endif } /* @@ -3156,6 +3572,7 @@ Perl_load_module_nocontext(U32 flags, SV *name, SV *ver, ...) void Perl_vload_module(pTHX_ U32 flags, SV *name, SV *ver, va_list *args) { + dVAR; OP *veop, *imop; OP * const modname = newSVOP(OP_CONST, 0, name); @@ -3164,7 +3581,7 @@ Perl_vload_module(pTHX_ U32 flags, SV *name, SV *ver, va_list *args) veop = newSVOP(OP_CONST, 0, ver); } else - veop = Nullop; + veop = NULL; if (flags & PERL_LOADMOD_NOIMPORT) { imop = sawparens(newNULLLIST()); } @@ -3173,7 +3590,7 @@ Perl_vload_module(pTHX_ U32 flags, SV *name, SV *ver, va_list *args) } else { SV *sv; - imop = Nullop; + imop = NULL; sv = va_arg(*args, SV*); while (sv) { imop = append_elem(OP_LIST, imop, newSVOP(OP_CONST, 0, sv)); @@ -3196,14 +3613,15 @@ Perl_vload_module(pTHX_ U32 flags, SV *name, SV *ver, va_list *args) OP * Perl_dofile(pTHX_ OP *term, I32 force_builtin) { + dVAR; OP *doop; - GV *gv = Nullgv; + GV *gv = NULL; if (!force_builtin) { - gv = gv_fetchpv("do", FALSE, SVt_PVCV); + gv = gv_fetchpvs("do", GV_NOTQUAL, SVt_PVCV); if (!(gv && GvCVu(gv) && GvIMPORTED_CV(gv))) { - GV * const * const gvp = (GV**)hv_fetch(PL_globalstash, "do", 2, FALSE); - gv = gvp ? *gvp : Nullgv; + GV * const * const gvp = (GV**)hv_fetchs(PL_globalstash, "do", FALSE); + gv = gvp ? *gvp : NULL; } } @@ -3270,6 +3688,7 @@ S_is_list_assignment(pTHX_ register const OP *o) OP * Perl_newASSIGNOP(pTHX_ I32 flags, OP *left, I32 optype, OP *right) { + dVAR; OP *o; if (optype) { @@ -3295,18 +3714,10 @@ Perl_newASSIGNOP(pTHX_ I32 flags, OP *left, I32 optype, OP *right) if (PL_eval_start) PL_eval_start = 0; else if (left->op_type == OP_CONST) { + /* FIXME for MAD */ /* Result of assignment is always 1 (or we'd be dead already) */ return newSVOP(OP_CONST, 0, newSViv(1)); } - /* optimise C to C, and likewise for hashes */ - if ((left->op_type == OP_PADAV || left->op_type == OP_PADHV) - && right->op_type == OP_STUB - && (left->op_private & OPpLVAL_INTRO)) - { - op_free(right); - left->op_flags &= ~(OPf_REF|OPf_SPECIAL); - return left; - } curop = list(force_list(left)); o = newBINOP(OP_AASSIGN, flags, list(force_list(right)), curop); o->op_private = (U8)(0 | (flags >> 8)); @@ -3332,9 +3743,10 @@ Perl_newASSIGNOP(pTHX_ I32 flags, OP *left, I32 optype, OP *right) if (PL_opargs[curop->op_type] & OA_DANGEROUS) { if (curop->op_type == OP_GV) { GV *gv = cGVOPx_gv(curop); - if (gv == PL_defgv || (int)SvCUR(gv) == PL_generation) + if (gv == PL_defgv + || (int)GvASSIGN_GENERATION(gv) == PL_generation) break; - SvCUR_set(gv, PL_generation); + GvASSIGN_GENERATION_set(gv, PL_generation); } else if (curop->op_type == OP_PADSV || curop->op_type == OP_PADAV || @@ -3364,9 +3776,11 @@ Perl_newASSIGNOP(pTHX_ I32 flags, OP *left, I32 optype, OP *right) #else GV *gv = (GV*)((PMOP*)curop)->op_pmreplroot; #endif - if (gv == PL_defgv || (int)SvCUR(gv) == PL_generation) + if (gv == PL_defgv + || (int)GvASSIGN_GENERATION(gv) == PL_generation) break; - SvCUR_set(gv, PL_generation); + GvASSIGN_GENERATION_set(gv, PL_generation); + GvASSIGN_GENERATION_set(gv, PL_generation); } } else @@ -3394,14 +3808,18 @@ Perl_newASSIGNOP(pTHX_ I32 flags, OP *left, I32 optype, OP *right) cPADOPx(tmpop)->op_padix = 0; /* steal it */ #else pm->op_pmreplroot = (OP*)cSVOPx(tmpop)->op_sv; - cSVOPx(tmpop)->op_sv = Nullsv; /* steal it */ + cSVOPx(tmpop)->op_sv = NULL; /* steal it */ #endif pm->op_pmflags |= PMf_ONCE; tmpop = cUNOPo->op_first; /* to list (nulled) */ tmpop = ((UNOP*)tmpop)->op_first; /* to pushmark */ - tmpop->op_sibling = Nullop; /* don't free split */ + tmpop->op_sibling = NULL; /* don't free split */ right->op_next = tmpop->op_next; /* fix starting loc */ +#ifdef PERL_MAD + op_getmad(o,right,'R'); /* blow off assign */ +#else op_free(o); /* blow off assign */ +#endif right->op_flags &= ~OPf_WANT; /* "I don't know and I don't care." */ return right; @@ -3433,7 +3851,10 @@ Perl_newASSIGNOP(pTHX_ I32 flags, OP *left, I32 optype, OP *right) if (PL_eval_start) PL_eval_start = 0; else { + /* FIXME for MAD */ + op_free(o); o = newSVOP(OP_CONST, 0, newSViv(PL_compiling.cop_arybase)); + o->op_private |= OPpCONST_ARYBASE; } } return o; @@ -3493,7 +3914,7 @@ Perl_newSTATEOP(pTHX_ I32 flags, char *label, OP *o) CopSTASH_set(cop, PL_curstash); if (PERLDB_LINE && PL_curstash != PL_debstash) { - SV * const * const svp = av_fetch(CopFILEAV(PL_curcop), (I32)CopLINE(cop), FALSE); + SV * const * const svp = av_fetch(CopFILEAVx(PL_curcop), (I32)CopLINE(cop), FALSE); if (svp && *svp != &PL_sv_undef ) { (void)SvIOK_on(*svp); SvIV_set(*svp, PTR2IV(cop)); @@ -3525,7 +3946,9 @@ S_new_logop(pTHX_ I32 type, I32 flags, OP** firstp, OP** otherp) scalarboolean(first); /* optimize "!a && b" to "a || b", and "!a || b" to "a && b" */ - if (first->op_type == OP_NOT && (first->op_flags & OPf_SPECIAL)) { + if (first->op_type == OP_NOT + && (first->op_flags & OPf_SPECIAL) + && (first->op_flags & OPf_KIDS)) { if (type == OP_AND || type == OP_OR) { if (type == OP_AND) type = OP_OR; @@ -3535,8 +3958,12 @@ S_new_logop(pTHX_ I32 type, I32 flags, OP** firstp, OP** otherp) first = *firstp = cUNOPo->op_first; if (o->op_next) first->op_next = o->op_next; - cUNOPo->op_first = Nullop; + cUNOPo->op_first = NULL; +#ifdef PERL_MAD + op_getmad(o,first,'O'); +#else op_free(o); +#endif } } if (first->op_type == OP_CONST) { @@ -3547,10 +3974,16 @@ S_new_logop(pTHX_ I32 type, I32 flags, OP** firstp, OP** otherp) if ((type == OP_AND && SvTRUE(((SVOP*)first)->op_sv)) || (type == OP_OR && !SvTRUE(((SVOP*)first)->op_sv)) || (type == OP_DOR && !SvOK(((SVOP*)first)->op_sv))) { - op_free(first); - *firstp = Nullop; + *firstp = NULL; if (other->op_type == OP_CONST) other->op_private |= OPpCONST_SHORTCIRCUIT; + if (PL_madskills) { + OP *newop = newUNOP(OP_NULL, 0, other); + op_getmad(first, newop, '1'); + newop->op_targ = type; /* set "was" field */ + return newop; + } + op_free(first); return other; } else { @@ -3571,10 +4004,16 @@ S_new_logop(pTHX_ I32 type, I32 flags, OP** firstp, OP** otherp) "Deprecated use of my() in false conditional"); } - op_free(other); - *otherp = Nullop; + *otherp = NULL; if (first->op_type == OP_CONST) first->op_private |= OPpCONST_SHORTCIRCUIT; + if (PL_madskills) { + first = newUNOP(OP_NULL, 0, first); + op_getmad(other, first, '2'); + first->op_targ = type; /* set "was" field */ + } + else + op_free(other); return first; } } @@ -3666,13 +4105,31 @@ Perl_newCONDOP(pTHX_ I32 flags, OP *first, OP *trueop, OP *falseop) no_bareword_allowed(first); } if (SvTRUE(((SVOP*)first)->op_sv)) { +#ifdef PERL_MAD + if (PL_madskills) { + trueop = newUNOP(OP_NULL, 0, trueop); + op_getmad(first,trueop,'C'); + op_getmad(falseop,trueop,'e'); + } + /* FIXME for MAD - should there be an ELSE here? */ +#else op_free(first); op_free(falseop); +#endif return trueop; } else { +#ifdef PERL_MAD + if (PL_madskills) { + falseop = newUNOP(OP_NULL, 0, falseop); + op_getmad(first,falseop,'C'); + op_getmad(trueop,falseop,'t'); + } + /* FIXME for MAD - should there be an ELSE here? */ +#else op_free(first); op_free(trueop); +#endif return falseop; } } @@ -3752,6 +4209,7 @@ Perl_newRANGE(pTHX_ I32 flags, OP *left, OP *right) OP * Perl_newLOOPOP(pTHX_ I32 flags, I32 debuggable, OP *expr, OP *block) { + dVAR; OP* listop; OP* o; const bool once = block && block->op_flags & OPf_SPECIAL && @@ -3816,7 +4274,7 @@ whileline, OP *expr, OP *block, OP *cont, I32 has_my) { dVAR; OP *redo; - OP *next = 0; + OP *next = NULL; OP *listop; OP *o; U8 loopflags = 0; @@ -3876,7 +4334,7 @@ whileline, OP *expr, OP *block, OP *cont, I32 has_my) if (o == expr && o->op_type == OP_CONST && !SvTRUE(cSVOPo->op_sv)) { op_free(expr); /* oops, it's a while (0) */ op_free((OP*)loop); - return Nullop; /* listop already freed by new_logop */ + return NULL; /* listop already freed by new_logop */ } if (listop) ((LISTOP*)listop)->op_last->op_next = @@ -3918,38 +4376,52 @@ Perl_newFOROP(pTHX_ I32 flags, char *label, line_t forline, OP *sv, OP *expr, OP PADOFFSET padoff = 0; I32 iterflags = 0; I32 iterpflags = 0; + OP *madsv = 0; if (sv) { if (sv->op_type == OP_RV2SV) { /* symbol table variable */ iterpflags = sv->op_private & OPpOUR_INTRO; /* for our $x () */ sv->op_type = OP_RV2GV; sv->op_ppaddr = PL_ppaddr[OP_RV2GV]; + if (cGVOPx_gv(cUNOPx(sv)->op_first) == PL_defgv) + iterpflags |= OPpITER_DEF; } else if (sv->op_type == OP_PADSV) { /* private variable */ iterpflags = sv->op_private & OPpLVAL_INTRO; /* for my $x () */ padoff = sv->op_targ; - sv->op_targ = 0; - op_free(sv); - sv = Nullop; + if (PL_madskills) + madsv = sv; + else { + sv->op_targ = 0; + op_free(sv); + } + sv = NULL; } else if (sv->op_type == OP_THREADSV) { /* per-thread variable */ padoff = sv->op_targ; - sv->op_targ = 0; - iterflags |= OPf_SPECIAL; - op_free(sv); - sv = Nullop; + if (PL_madskills) + madsv = sv; + else { + sv->op_targ = 0; + iterflags |= OPf_SPECIAL; + op_free(sv); + } + sv = NULL; } else Perl_croak(aTHX_ "Can't use %s for loop variable", PL_op_desc[sv->op_type]); + if (padoff && strEQ(PAD_COMPNAME_PV(padoff), "$_")) + iterpflags |= OPpITER_DEF; } else { const I32 offset = pad_findmy("$_"); - if (offset == NOT_IN_PAD || PAD_COMPNAME_FLAGS(offset) & SVpad_OUR) { + if (offset == NOT_IN_PAD || PAD_COMPNAME_FLAGS_isOUR(offset)) { sv = newGVOP(OP_GV, 0, PL_defgv); } else { padoff = offset; } + iterpflags |= OPpITER_DEF; } if (expr->op_type == OP_RV2AV || expr->op_type == OP_PADAV) { expr = mod(force_list(scalar(ref(expr, OP_ITER))), OP_GREPSTART); @@ -3970,7 +4442,7 @@ Perl_newFOROP(pTHX_ I32 flags, char *label, line_t forline, OP *sv, OP *expr, OP LISTOP* listop; range->op_flags &= ~OPf_KIDS; - range->op_first = Nullop; + range->op_first = NULL; listop = (LISTOP*)newLISTOP(OP_LIST, 0, left, right); listop->op_first->op_next = range->op_next; @@ -3978,7 +4450,11 @@ Perl_newFOROP(pTHX_ I32 flags, char *label, line_t forline, OP *sv, OP *expr, OP right->op_next = (OP*)listop; listop->op_next = listop->op_first; +#ifdef PERL_MAD + op_getmad(expr,(OP*)listop,'O'); +#else op_free(expr); +#endif expr = (OP*)(listop); op_null(expr); iterflags |= OPf_STACKED; @@ -4006,6 +4482,8 @@ Perl_newFOROP(pTHX_ I32 flags, char *label, line_t forline, OP *sv, OP *expr, OP #endif loop->op_targ = padoff; wop = newWHILEOP(flags, 1, loop, forline, newOP(OP_ITER, 0), block, cont, 0); + if (madsv) + op_getmad(madsv, (OP*)loop, 'v'); PL_copline = forline; return newSTATEOP(0, label, wop); } @@ -4013,6 +4491,7 @@ Perl_newFOROP(pTHX_ I32 flags, char *label, line_t forline, OP *sv, OP *expr, OP OP* Perl_newLOOPEX(pTHX_ I32 type, OP *label) { + dVAR; OP *o; if (type != OP_GOTO || label->op_type == OP_CONST) { @@ -4024,7 +4503,11 @@ Perl_newLOOPEX(pTHX_ I32 type, OP *label) ? SvPVx_nolen_const(((SVOP*)label)->op_sv) : "")); } +#ifdef PERL_MAD + op_getmad(label,o,'L'); +#else op_free(label); +#endif } else { /* Check whether it's going to be a goto &function */ @@ -4037,6 +4520,180 @@ Perl_newLOOPEX(pTHX_ I32 type, OP *label) return o; } +/* if the condition is a literal array or hash + (or @{ ... } etc), make a reference to it. + */ +STATIC OP * +S_ref_array_or_hash(pTHX_ OP *cond) +{ + if (cond + && (cond->op_type == OP_RV2AV + || cond->op_type == OP_PADAV + || cond->op_type == OP_RV2HV + || cond->op_type == OP_PADHV)) + + return newUNOP(OP_REFGEN, + 0, mod(cond, OP_REFGEN)); + + else + return cond; +} + +/* These construct the optree fragments representing given() + and when() blocks. + + entergiven and enterwhen are LOGOPs; the op_other pointer + points up to the associated leave op. We need this so we + can put it in the context and make break/continue work. + (Also, of course, pp_enterwhen will jump straight to + op_other if the match fails.) + */ + +STATIC +OP * +S_newGIVWHENOP(pTHX_ OP *cond, OP *block, + I32 enter_opcode, I32 leave_opcode, + PADOFFSET entertarg) +{ + dVAR; + LOGOP *enterop; + OP *o; + + NewOp(1101, enterop, 1, LOGOP); + enterop->op_type = enter_opcode; + enterop->op_ppaddr = PL_ppaddr[enter_opcode]; + enterop->op_flags = (U8) OPf_KIDS; + enterop->op_targ = ((entertarg == NOT_IN_PAD) ? 0 : entertarg); + enterop->op_private = 0; + + o = newUNOP(leave_opcode, 0, (OP *) enterop); + + if (cond) { + enterop->op_first = scalar(cond); + cond->op_sibling = block; + + o->op_next = LINKLIST(cond); + cond->op_next = (OP *) enterop; + } + else { + /* This is a default {} block */ + enterop->op_first = block; + enterop->op_flags |= OPf_SPECIAL; + + o->op_next = (OP *) enterop; + } + + CHECKOP(enter_opcode, enterop); /* Currently does nothing, since + entergiven and enterwhen both + use ck_null() */ + + enterop->op_next = LINKLIST(block); + block->op_next = enterop->op_other = o; + + return o; +} + +/* Does this look like a boolean operation? For these purposes + a boolean operation is: + - a subroutine call [*] + - a logical connective + - a comparison operator + - a filetest operator, with the exception of -s -M -A -C + - defined(), exists() or eof() + - /$re/ or $foo =~ /$re/ + + [*] possibly surprising + */ +STATIC +bool +S_looks_like_bool(pTHX_ OP *o) +{ + dVAR; + switch(o->op_type) { + case OP_OR: + return looks_like_bool(cLOGOPo->op_first); + + case OP_AND: + return ( + looks_like_bool(cLOGOPo->op_first) + && looks_like_bool(cLOGOPo->op_first->op_sibling)); + + case OP_ENTERSUB: + + case OP_NOT: case OP_XOR: + /* Note that OP_DOR is not here */ + + case OP_EQ: case OP_NE: case OP_LT: + case OP_GT: case OP_LE: case OP_GE: + + case OP_I_EQ: case OP_I_NE: case OP_I_LT: + case OP_I_GT: case OP_I_LE: case OP_I_GE: + + case OP_SEQ: case OP_SNE: case OP_SLT: + case OP_SGT: case OP_SLE: case OP_SGE: + + case OP_SMARTMATCH: + + case OP_FTRREAD: case OP_FTRWRITE: case OP_FTREXEC: + case OP_FTEREAD: case OP_FTEWRITE: case OP_FTEEXEC: + case OP_FTIS: case OP_FTEOWNED: case OP_FTROWNED: + case OP_FTZERO: case OP_FTSOCK: case OP_FTCHR: + case OP_FTBLK: case OP_FTFILE: case OP_FTDIR: + case OP_FTPIPE: case OP_FTLINK: case OP_FTSUID: + case OP_FTSGID: case OP_FTSVTX: case OP_FTTTY: + case OP_FTTEXT: case OP_FTBINARY: + + case OP_DEFINED: case OP_EXISTS: + case OP_MATCH: case OP_EOF: + + return TRUE; + + case OP_CONST: + /* Detect comparisons that have been optimized away */ + if (cSVOPo->op_sv == &PL_sv_yes + || cSVOPo->op_sv == &PL_sv_no) + + return TRUE; + + /* FALL THROUGH */ + default: + return FALSE; + } +} + +OP * +Perl_newGIVENOP(pTHX_ OP *cond, OP *block, PADOFFSET defsv_off) +{ + dVAR; + assert( cond ); + return newGIVWHENOP( + ref_array_or_hash(cond), + block, + OP_ENTERGIVEN, OP_LEAVEGIVEN, + defsv_off); +} + +/* If cond is null, this is a default {} block */ +OP * +Perl_newWHENOP(pTHX_ OP *cond, OP *block) +{ + bool cond_llb = (!cond || looks_like_bool(cond)); + OP *cond_op; + + if (cond_llb) + cond_op = cond; + else { + cond_op = newBINOP(OP_SMARTMATCH, OPf_SPECIAL, + newDEFSVOP(), + scalar(ref_array_or_hash(cond))); + } + + return newGIVWHENOP( + cond_op, + append_elem(block->op_type, block, newOP(OP_BREAK, OPf_SPECIAL)), + OP_ENTERWHEN, OP_LEAVEWHEN, 0); +} + /* =for apidoc cv_undef @@ -4053,27 +4710,27 @@ Perl_cv_undef(pTHX_ CV *cv) { dVAR; #ifdef USE_ITHREADS - if (CvFILE(cv) && !CvXSUB(cv)) { + if (CvFILE(cv) && !CvISXSUB(cv)) { /* for XSUBs CvFILE point directly to static memory; __FILE__ */ Safefree(CvFILE(cv)); } CvFILE(cv) = 0; #endif - if (!CvXSUB(cv) && CvROOT(cv)) { - if (CvDEPTH(cv)) + if (!CvISXSUB(cv) && CvROOT(cv)) { + if (SvTYPE(cv) == SVt_PVCV && CvDEPTH(cv)) Perl_croak(aTHX_ "Can't undef active subroutine"); ENTER; PAD_SAVE_SETNULLPAD(); op_free(CvROOT(cv)); - CvROOT(cv) = Nullop; - CvSTART(cv) = Nullop; + CvROOT(cv) = NULL; + CvSTART(cv) = NULL; LEAVE; } SvPOK_off((SV*)cv); /* forget prototype */ - CvGV(cv) = Nullgv; + CvGV(cv) = NULL; pad_undef(cv); @@ -4081,14 +4738,14 @@ Perl_cv_undef(pTHX_ CV *cv) if (!SvREFCNT(cv) && CvOUTSIDE(cv)) { if (!CvWEAKOUTSIDE(cv)) SvREFCNT_dec(CvOUTSIDE(cv)); - CvOUTSIDE(cv) = Nullcv; + CvOUTSIDE(cv) = NULL; } if (CvCONST(cv)) { SvREFCNT_dec((SV*)CvXSUBANY(cv).any_ptr); CvCONST_off(cv); } - if (CvXSUB(cv)) { - CvXSUB(cv) = 0; + if (CvISXSUB(cv) && CvXSUB(cv)) { + CvXSUB(cv) = NULL; } /* delete all flags except WEAKOUTSIDE */ CvFLAGS(cv) &= CVf_WEAKOUTSIDE; @@ -4099,22 +4756,22 @@ Perl_cv_ckproto(pTHX_ const CV *cv, const GV *gv, const char *p) { if (((!p != !SvPOK(cv)) || (p && strNE(p, SvPVX_const(cv)))) && ckWARN_d(WARN_PROTOTYPE)) { SV* const msg = sv_newmortal(); - SV* name = Nullsv; + SV* name = NULL; if (gv) - gv_efullname3(name = sv_newmortal(), gv, Nullch); + gv_efullname3(name = sv_newmortal(), gv, NULL); sv_setpv(msg, "Prototype mismatch:"); if (name) Perl_sv_catpvf(aTHX_ msg, " sub %"SVf, name); if (SvPOK(cv)) Perl_sv_catpvf(aTHX_ msg, " (%"SVf")", (const SV *)cv); else - Perl_sv_catpv(aTHX_ msg, ": none"); - sv_catpv(msg, " vs "); + sv_catpvs(msg, ": none"); + sv_catpvs(msg, " vs "); if (p) Perl_sv_catpvf(aTHX_ msg, "(%s)", p); else - sv_catpv(msg, "none"); + sv_catpvs(msg, "none"); Perl_warner(aTHX_ packWARN(WARN_PROTOTYPE), "%"SVf, msg); } } @@ -4138,9 +4795,12 @@ L. SV * Perl_cv_const_sv(pTHX_ CV *cv) { - if (!cv || !CvCONST(cv)) - return Nullsv; - return (SV*)CvXSUBANY(cv).any_ptr; + PERL_UNUSED_CONTEXT; + if (!cv) + return NULL; + if (!(SvTYPE(cv) == SVt_PVCV || SvTYPE(cv) == SVt_PVFM)) + return NULL; + return CvCONST(cv) ? (SV*)CvXSUBANY(cv).any_ptr : NULL; } /* op_const_sv: examine an optree to determine whether it's in-lineable. @@ -4166,10 +4826,11 @@ Perl_cv_const_sv(pTHX_ CV *cv) SV * Perl_op_const_sv(pTHX_ const OP *o, CV *cv) { - SV *sv = Nullsv; + dVAR; + SV *sv = NULL; if (!o) - return Nullsv; + return NULL; if (o->op_type == OP_LINESEQ && cLISTOPo->op_first) o = cLISTOPo->op_first->op_sibling; @@ -4188,13 +4849,13 @@ Perl_op_const_sv(pTHX_ const OP *o, CV *cv) if (type == OP_LEAVESUB || type == OP_RETURN) break; if (sv) - return Nullsv; + return NULL; if (type == OP_CONST && cSVOPo->op_sv) sv = cSVOPo->op_sv; else if (cv && type == OP_CONST) { sv = PAD_BASE_SV(CvPADLIST(cv), o->op_targ); if (!sv) - return Nullsv; + return NULL; } else if (cv && type == OP_PADSV) { if (CvCONST(cv)) { /* newly cloned anon */ @@ -4202,7 +4863,7 @@ Perl_op_const_sv(pTHX_ const OP *o, CV *cv) /* the candidate should have 1 ref from this pad and 1 ref * from the parent */ if (!sv || SvREFCNT(sv) != 2) - return Nullsv; + return NULL; sv = newSVsv(sv); SvREADONLY_on(sv); return sv; @@ -4213,15 +4874,24 @@ Perl_op_const_sv(pTHX_ const OP *o, CV *cv) } } else { - return Nullsv; + return NULL; } } return sv; } +#ifdef PERL_MAD +OP * +#else void +#endif Perl_newMYSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) { +#if 0 + /* This would be the return value, but the return cannot be reached. */ + OP* pegop = newOP(OP_NULL, 0); +#endif + PERL_UNUSED_ARG(floor); if (o) @@ -4233,12 +4903,15 @@ Perl_newMYSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) if (block) SAVEFREEOP(block); Perl_croak(aTHX_ "\"my sub\" not yet implemented"); +#ifdef PERL_MAD + NORETURN_FUNCTION_END; +#endif } CV * Perl_newSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *block) { - return Perl_newATTRSUB(aTHX_ floor, o, proto, Nullop, block); + return Perl_newATTRSUB(aTHX_ floor, o, proto, NULL, block); } CV * @@ -4249,18 +4922,25 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) GV *gv; const char *ps; STRLEN ps_len; - register CV *cv=0; + register CV *cv = NULL; SV *const_sv; - I32 gv_fetch_flags; - - const char * const name = o ? SvPVx_nolen_const(cSVOPo->op_sv) : Nullch; + /* If the subroutine has no body, no attributes, and no builtin attributes + then it's just a sub declaration, and we may be able to get away with + storing with a placeholder scalar in the symbol table, rather than a + full GV and CV. If anything is present then it will take a full CV to + store it. */ + const I32 gv_fetch_flags + = (block || attrs || (CvFLAGS(PL_compcv) & CVf_BUILTIN_ATTRS) + || PL_madskills) + ? GV_ADDMULTI : GV_ADDMULTI | GV_NOINIT; + const char * const name = o ? SvPVx_nolen_const(cSVOPo->op_sv) : NULL; if (proto) { assert(proto->op_type == OP_CONST); ps = SvPVx_const(((SVOP*)proto)->op_sv, ps_len); } else - ps = Nullch; + ps = NULL; if (!name && PERLDB_NAMEANON && CopLINE(PL_curcop)) { SV * const sv = sv_newmortal(); @@ -4270,21 +4950,21 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) aname = SvPVX_const(sv); } else - aname = Nullch; + aname = NULL; - gv_fetch_flags = (block || attrs || (CvFLAGS(PL_compcv) & CVf_BUILTIN_ATTRS)) - ? GV_ADDMULTI : GV_ADDMULTI | GV_NOINIT; gv = name ? gv_fetchsv(cSVOPo->op_sv, gv_fetch_flags, SVt_PVCV) : gv_fetchpv(aname ? aname : (PL_curstash ? "__ANON__" : "__ANON__::__ANON__"), gv_fetch_flags, SVt_PVCV); - if (o) - SAVEFREEOP(o); - if (proto) - SAVEFREEOP(proto); - if (attrs) - SAVEFREEOP(attrs); + if (!PL_madskills) { + if (o) + SAVEFREEOP(o); + if (proto) + SAVEFREEOP(proto); + if (attrs) + SAVEFREEOP(attrs); + } if (SvTYPE(gv) != SVt_PVGV) { /* Maybe prototype now, and had at maximum a prototype before. */ @@ -4306,7 +4986,7 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) goto done; } - cv = (!name || GvCVGEN(gv)) ? Nullcv : GvCV(gv); + cv = (!name || GvCVGEN(gv)) ? NULL : GvCV(gv); #ifdef GV_UNIQUE_CHECK if (cv && GvUNIQUE(gv) && SvREADONLY(cv)) { @@ -4314,10 +4994,15 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) } #endif - if (!block || !ps || *ps || attrs || (CvFLAGS(PL_compcv) & CVf_BUILTIN_ATTRS)) - const_sv = Nullsv; + if (!block || !ps || *ps || attrs + || (CvFLAGS(PL_compcv) & CVf_BUILTIN_ATTRS) +#ifdef PERL_MAD + || block->op_type == OP_NULL +#endif + ) + const_sv = NULL; else - const_sv = op_const_sv(block, Nullcv); + const_sv = op_const_sv(block, NULL); if (cv) { const bool exists = CvROOT(cv) || CvXSUB(cv); @@ -4336,7 +5021,11 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) cv_ckproto(cv, gv, ps); /* already defined (or promised)? */ if (exists || GvASSUMECV(gv)) { - if (!block && !attrs) { + if ((!block +#ifdef PERL_MAD + || block->op_type == OP_NULL +#endif + )&& !attrs) { if (CvFLAGS(PL_compcv)) { /* might have had built-in attrs applied */ CvFLAGS(cv) |= (CvFLAGS(PL_compcv) & CVf_BUILTIN_ATTRS); @@ -4345,10 +5034,11 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) SAVEFREESV(PL_compcv); goto done; } - /* ahem, death to those who redefine active sort subs */ - if (PL_curstackinfo->si_type == PERLSI_SORT && PL_sortcop == CvSTART(cv)) - Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", name); - if (block) { + if (block +#ifdef PERL_MAD + && block->op_type != OP_NULL +#endif + ) { if (ckWARN(WARN_REDEFINE) || (CvCONST(cv) && (!const_sv || sv_cmp(cv_const_sv(cv), const_sv)))) @@ -4361,28 +5051,37 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) : "Subroutine %s redefined", name); CopLINE_set(PL_curcop, oldline); } - SvREFCNT_dec(cv); - cv = Nullcv; +#ifdef PERL_MAD + if (!PL_minus_c) /* keep old one around for madskills */ +#endif + { + /* (PL_madskills unset in used file.) */ + SvREFCNT_dec(cv); + } + cv = NULL; } } } if (const_sv) { - (void)SvREFCNT_inc(const_sv); + SvREFCNT_inc_void_NN(const_sv); if (cv) { assert(!CvROOT(cv) && !CvCONST(cv)); sv_setpvn((SV*)cv, "", 0); /* prototype is "" */ CvXSUBANY(cv).any_ptr = const_sv; CvXSUB(cv) = const_sv_xsub; CvCONST_on(cv); + CvISXSUB_on(cv); } else { - GvCV(gv) = Nullcv; + GvCV(gv) = NULL; cv = newCONSTSUB(NULL, name, const_sv); } + PL_sub_generation++; + if (PL_madskills) + goto install_block; op_free(block); SvREFCNT_dec(PL_compcv); PL_compcv = NULL; - PL_sub_generation++; goto done; } if (attrs) { @@ -4392,7 +5091,11 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) /* Need to do a C * before we clobber PL_compcv. */ - if (cv && !block) { + if (cv && (!block +#ifdef PERL_MAD + || block->op_type == OP_NULL +#endif + )) { rcv = (SV*)cv; /* Might have had built-in attributes applied -- propagate them. */ CvFLAGS(cv) |= (CvFLAGS(PL_compcv) & CVf_BUILTIN_ATTRS); @@ -4414,7 +5117,15 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) apply_attrs(stash, rcv, attrs, FALSE); } if (cv) { /* must reuse cv if autoloaded */ - if (!block) { + if ( +#ifdef PERL_MAD + ( +#endif + !block +#ifdef PERL_MAD + || block->op_type == OP_NULL) && !PL_madskills +#endif + ) { /* got here with just attrs -- work done, so bug out */ SAVEFREESV(PL_compcv); goto done; @@ -4441,6 +5152,12 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) cv = PL_compcv; if (name) { GvCV(gv) = cv; + if (PL_madskills) { + if (strEQ(name, "import")) { + PL_formfeed = (SV*)cv; + Perl_warner(aTHX_ packWARN(WARN_VOID), "%lx\n", (long)cv); + } + } GvCVGEN(gv) = 0; PL_sub_generation++; } @@ -4454,7 +5171,7 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) if (PL_error_count) { op_free(block); - block = Nullop; + block = NULL; if (name) { const char *s = strrchr(name, ':'); s = s ? s+1 : name; @@ -4471,6 +5188,7 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) } } } + install_block: if (!block) goto done; @@ -4481,8 +5199,13 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) else { /* This makes sub {}; work as expected. */ if (block->op_type == OP_STUB) { + OP* newblock = newSTATEOP(0, NULL, 0); +#ifdef PERL_MAD + op_getmad(block,newblock,'B'); +#else op_free(block); - block = newSTATEOP(0, Nullch, 0); +#endif + block = newblock; } CvROOT(cv) = newUNOP(OP_LEAVESUB, 0, scalarseq(block)); } @@ -4504,18 +5227,19 @@ Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block) if (name || aname) { const char *s; - const char *tname = (name ? name : aname); + const char * const tname = (name ? name : aname); if (PERLDB_SUBLINE && PL_curstash != PL_debstash) { - SV * const sv = NEWSV(0,0); + SV * const sv = newSV(0); SV * const tmpstr = sv_newmortal(); - GV *db_postponed = gv_fetchpv("DB::postponed", GV_ADDMULTI, SVt_PVHV); + GV * const db_postponed = gv_fetchpvs("DB::postponed", + GV_ADDMULTI, SVt_PVHV); HV *hv; Perl_sv_setpvf(aTHX_ sv, "%s:%ld-%ld", CopFILE(PL_curcop), (long)PL_subline, (long)CopLINE(PL_curcop)); - gv_efullname3(tmpstr, gv, Nullch); + gv_efullname3(tmpstr, gv, NULL); hv_store(GvHV(PL_DBsub), SvPVX_const(tmpstr), SvCUR(tmpstr), sv, 0); hv = GvHVn(db_postponed); if (HvFILL(hv) > 0 && hv_exists(hv, SvPVX_const(tmpstr), SvCUR(tmpstr))) { @@ -4626,9 +5350,10 @@ Perl_newCONSTSUB(pTHX_ HV *stash, const char *name, SV *sv) CvCONST_on(cv); sv_setpvn((SV*)cv, "", 0); /* prototype is "" */ +#ifdef USE_ITHREADS if (stash) CopSTASH_free(PL_curcop); - +#endif LEAVE; return cv; @@ -4645,6 +5370,7 @@ Used by C to hook up XSUBs as Perl subs. CV * Perl_newXS(pTHX_ const char *name, XSUBADDR_t subaddr, const char *filename) { + dVAR; GV * const gv = gv_fetchpv(name ? name : (PL_curstash ? "__ANON__" : "__ANON__::__ANON__"), GV_ADDMULTI, SVt_PVCV); @@ -4653,11 +5379,11 @@ Perl_newXS(pTHX_ const char *name, XSUBADDR_t subaddr, const char *filename) if (!subaddr) Perl_croak(aTHX_ "panic: no address for '%s' in '%s'", name, filename); - if ((cv = (name ? GvCV(gv) : Nullcv))) { + if ((cv = (name ? GvCV(gv) : NULL))) { if (GvCVGEN(gv)) { /* just a cached method */ SvREFCNT_dec(cv); - cv = Nullcv; + cv = NULL; } else if (CvROOT(cv) || CvXSUB(cv) || GvASSUMECV(gv)) { /* already defined (or promised) */ @@ -4667,8 +5393,8 @@ Perl_newXS(pTHX_ const char *name, XSUBADDR_t subaddr, const char *filename) if (gvcv) { HV * const stash = GvSTASH(gvcv); if (stash) { - const char *name = HvNAME_get(stash); - if ( strEQ(name,"autouse") ) { + const char *redefined_name = HvNAME_get(stash); + if ( strEQ(redefined_name,"autouse") ) { const line_t oldline = CopLINE(PL_curcop); if (PL_copline != NOLINE) CopLINE_set(PL_curcop, PL_copline); @@ -4682,14 +5408,14 @@ Perl_newXS(pTHX_ const char *name, XSUBADDR_t subaddr, const char *filename) } } SvREFCNT_dec(cv); - cv = Nullcv; + cv = NULL; } } if (cv) /* must reuse cv if autoloaded */ cv_undef(cv); else { - cv = (CV*)NEWSV(1105,0); + cv = (CV*)newSV(0); sv_upgrade((SV *)cv, SVt_PVCV); if (name) { GvCV(gv) = cv; @@ -4701,6 +5427,7 @@ Perl_newXS(pTHX_ const char *name, XSUBADDR_t subaddr, const char *filename) (void)gv_fetchfile(filename); CvFILE(cv) = (char *)filename; /* NOTE: not copied, as it is expected to be an external constant string */ + CvISXSUB_on(cv); CvXSUB(cv) = subaddr; if (name) { @@ -4751,17 +5478,23 @@ done: return cv; } +#ifdef PERL_MAD +OP * +#else void +#endif Perl_newFORM(pTHX_ I32 floor, OP *o, OP *block) { + dVAR; register CV *cv; - GV *gv; +#ifdef PERL_MAD + OP* pegop = newOP(OP_NULL, 0); +#endif + + GV * const gv = o + ? gv_fetchsv(cSVOPo->op_sv, GV_ADD, SVt_PVFM) + : gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVFM); - if (o) - gv = gv_fetchsv(cSVOPo->op_sv, TRUE, SVt_PVFM); - else - gv = gv_fetchpv("STDOUT", TRUE, SVt_PVFM); - #ifdef GV_UNIQUE_CHECK if (GvUNIQUE(gv)) { Perl_croak(aTHX_ "Bad symbol for form (GV is unique)"); @@ -4793,9 +5526,17 @@ Perl_newFORM(pTHX_ I32 floor, OP *o, OP *block) CvSTART(cv) = LINKLIST(CvROOT(cv)); CvROOT(cv)->op_next = 0; CALL_PEEP(CvSTART(cv)); +#ifdef PERL_MAD + op_getmad(o,pegop,'n'); + op_getmad_weak(block, pegop, 'b'); +#else op_free(o); +#endif PL_copline = NOLINE; LEAVE_SCOPE(floor); +#ifdef PERL_MAD + return pegop; +#endif } OP * @@ -4815,7 +5556,7 @@ Perl_newANONHASH(pTHX_ OP *o) OP * Perl_newANONSUB(pTHX_ I32 floor, OP *proto, OP *block) { - return newANONATTRSUB(floor, proto, Nullop, block); + return newANONATTRSUB(floor, proto, NULL, block); } OP * @@ -4947,13 +5688,15 @@ OP * Perl_ck_anoncode(pTHX_ OP *o) { cSVOPo->op_targ = pad_add_anon(cSVOPo->op_sv, o->op_type); - cSVOPo->op_sv = Nullsv; + if (!PL_madskills) + cSVOPo->op_sv = Nullsv; return o; } OP * Perl_ck_bitop(pTHX_ OP *o) { + dVAR; #define OP_IS_NUMCOMPARE(op) \ ((op) == OP_LT || (op) == OP_I_LT || \ (op) == OP_GT || (op) == OP_I_GT || \ @@ -4987,7 +5730,8 @@ Perl_ck_bitop(pTHX_ OP *o) OP * Perl_ck_concat(pTHX_ OP *o) { - const OP *kid = cUNOPo->op_first; + const OP * const kid = cUNOPo->op_first; + PERL_UNUSED_CONTEXT; if (kid->op_type == OP_CONCAT && !(kid->op_private & OPpTARGET_MY) && !(kUNOP->op_first->op_flags & OPf_MOD)) o->op_flags |= OPf_STACKED; @@ -5013,7 +5757,11 @@ Perl_ck_spair(pTHX_ OP *o) return o; } +#ifdef PERL_MAD + op_getmad(kUNOP->op_first,newop,'K'); +#else op_free(kUNOP->op_first); +#endif kUNOP->op_first = newop; } o->op_ppaddr = PL_ppaddr[++o->op_type]; @@ -5060,12 +5808,19 @@ Perl_ck_die(pTHX_ OP *o) OP * Perl_ck_eof(pTHX_ OP *o) { + dVAR; const I32 type = o->op_type; if (o->op_flags & OPf_KIDS) { if (cLISTOPo->op_first->op_type == OP_STUB) { + OP* newop + = newUNOP(type, OPf_SPECIAL, newGVOP(OP_GV, 0, PL_argvgv)); +#ifdef PERL_MAD + op_getmad(o,newop,'O'); +#else op_free(o); - o = newUNOP(type, OPf_SPECIAL, newGVOP(OP_GV, 0, PL_argvgv)); +#endif + o = newop; } return ck_fun(o); } @@ -5086,9 +5841,14 @@ Perl_ck_eval(pTHX_ OP *o) } else if (kid->op_type == OP_LINESEQ || kid->op_type == OP_STUB) { LOGOP *enter; +#ifdef PERL_MAD + OP* oldo = o; +#endif cUNOPo->op_first = 0; +#ifndef PERL_MAD op_free(o); +#endif NewOp(1101, enter, 1, LOGOP); enter->op_type = OP_ENTERTRY; @@ -5102,6 +5862,7 @@ Perl_ck_eval(pTHX_ OP *o) o->op_type = OP_LEAVETRY; o->op_ppaddr = PL_ppaddr[OP_LEAVETRY]; enter->op_other = o; + op_getmad(oldo,o,'O'); return o; } else { @@ -5110,10 +5871,21 @@ Perl_ck_eval(pTHX_ OP *o) } } else { +#ifdef PERL_MAD + OP* oldo = o; +#else op_free(o); +#endif o = newUNOP(OP_ENTEREVAL, 0, newDEFSVOP()); + op_getmad(oldo,o,'O'); } o->op_targ = (PADOFFSET)PL_hints; + if ((PL_hints & HINT_LOCALIZE_HH) != 0 && GvHV(PL_hintgv)) { + /* Store a copy of %^H that pp_entereval can pick up */ + OP *hhop = newSVOP(OP_CONST, 0, (SV*)newHVhv(GvHV(PL_hintgv))); + cUNOPo->op_first->op_sibling = hhop; + o->op_private |= OPpEVAL_HAS_HH; + } return o; } @@ -5123,7 +5895,7 @@ Perl_ck_exit(pTHX_ OP *o) #ifdef VMS HV * const table = GvHV(PL_hintgv); if (table) { - SV * const * const svp = hv_fetch(table, "vmsish_exit", 11, FALSE); + SV * const * const svp = hv_fetchs(table, "vmsish_exit", FALSE); if (svp && *svp && SvTRUE(*svp)) o->op_private |= OPpEXIT_VMSISH; } @@ -5150,6 +5922,7 @@ Perl_ck_exec(pTHX_ OP *o) OP * Perl_ck_exists(pTHX_ OP *o) { + dVAR; o = ck_fun(o); if (o->op_flags & OPf_KIDS) { OP * const kid = cUNOPo->op_first; @@ -5174,9 +5947,12 @@ OP * Perl_ck_rvconst(pTHX_ register OP *o) { dVAR; - SVOP *kid = (SVOP*)cUNOPo->op_first; + SVOP * const kid = (SVOP*)cUNOPo->op_first; o->op_private |= (PL_hints & HINT_STRICT_REFS); + if (o->op_type == OP_RV2CV) + o->op_private &= ~1; + if (kid->op_type == OP_CONST) { int iscv; GV *gv; @@ -5184,9 +5960,9 @@ Perl_ck_rvconst(pTHX_ register OP *o) /* Is it a constant from cv_const_sv()? */ if (SvROK(kidsv) && SvREADONLY(kidsv)) { - SV *rsv = SvRV(kidsv); + SV * const rsv = SvRV(kidsv); const int svtype = SvTYPE(rsv); - const char *badtype = Nullch; + const char *badtype = NULL; switch (o->op_type) { case OP_RV2SV: @@ -5210,8 +5986,19 @@ Perl_ck_rvconst(pTHX_ register OP *o) Perl_croak(aTHX_ "Constant is not %s reference", badtype); return o; } - if ((PL_hints & HINT_STRICT_REFS) && (kid->op_private & OPpCONST_BARE)) { - const char *badthing = Nullch; + else if ((o->op_type == OP_RV2HV || o->op_type == OP_RV2SV) && + (PL_hints & HINT_STRICT_REFS) && SvPOK(kidsv)) { + /* If this is an access to a stash, disable "strict refs", because + * stashes aren't auto-vivified at compile-time (unless we store + * symbols in them), and we don't want to produce a run-time + * stricture error when auto-vivifying the stash. */ + const char *s = SvPV_nolen(kidsv); + const STRLEN l = SvCUR(kidsv); + if (l > 1 && s[l-1] == ':' && s[l-2] == ':') + o->op_private &= ~HINT_STRICT_REFS; + } + if ((o->op_private & HINT_STRICT_REFS) && (kid->op_private & OPpCONST_BARE)) { + const char *badthing; switch (o->op_type) { case OP_RV2SV: badthing = "a SCALAR"; @@ -5222,6 +6009,9 @@ Perl_ck_rvconst(pTHX_ register OP *o) case OP_RV2HV: badthing = "a HASH"; break; + default: + badthing = NULL; + break; } if (badthing) Perl_croak(aTHX_ @@ -5258,9 +6048,9 @@ Perl_ck_rvconst(pTHX_ register OP *o) kPADOP->op_padix = pad_alloc(OP_GV, SVs_PADTMP); SvREFCNT_dec(PAD_SVl(kPADOP->op_padix)); GvIN_PAD_on(gv); - PAD_SETSV(kPADOP->op_padix, (SV*) SvREFCNT_inc(gv)); + PAD_SETSV(kPADOP->op_padix, (SV*) SvREFCNT_inc_simple_NN(gv)); #else - kid->op_sv = SvREFCNT_inc(gv); + kid->op_sv = SvREFCNT_inc_simple_NN(gv); #endif kid->op_private = 0; kid->op_ppaddr = PL_ppaddr[OP_GV]; @@ -5276,15 +6066,19 @@ Perl_ck_ftst(pTHX_ OP *o) const I32 type = o->op_type; if (o->op_flags & OPf_REF) { - /* nothing */ + /*EMPTY*/; } else if (o->op_flags & OPf_KIDS && cUNOPo->op_first->op_type != OP_STUB) { SVOP * const kid = (SVOP*)cUNOPo->op_first; if (kid->op_type == OP_CONST && (kid->op_private & OPpCONST_BARE)) { OP * const newop = newGVOP(type, OPf_REF, - gv_fetchsv(kid->op_sv, TRUE, SVt_PVIO)); + gv_fetchsv(kid->op_sv, GV_ADD, SVt_PVIO)); +#ifdef PERL_MAD + op_getmad(o,newop,'O'); +#else op_free(o); +#endif o = newop; return o; } @@ -5298,11 +6092,16 @@ Perl_ck_ftst(pTHX_ OP *o) o->op_private |= OPpFT_STACKED; } else { +#ifdef PERL_MAD + OP* oldo = o; +#else op_free(o); +#endif if (type == OP_FTTTY) o = newGVOP(type, OPf_REF, PL_stdingv); else o = newUNOP(type, 0, newDEFSVOP()); + op_getmad(oldo,o,'O'); } return o; } @@ -5310,6 +6109,7 @@ Perl_ck_ftst(pTHX_ OP *o) OP * Perl_ck_fun(pTHX_ OP *o) { + dVAR; const int type = o->op_type; register I32 oa = PL_opargs[type] >> OASHIFT; @@ -5338,6 +6138,12 @@ Perl_ck_fun(pTHX_ OP *o) while (oa && kid) { numargs++; sibl = kid->op_sibling; +#ifdef PERL_MAD + if (!sibl && kid->op_type == OP_STUB) { + numargs--; + break; + } +#endif switch (oa & 7) { case OA_SCALAR: /* list seen where single (scalar) arg expected? */ @@ -5367,12 +6173,16 @@ Perl_ck_fun(pTHX_ OP *o) (kid->op_private & OPpCONST_BARE)) { OP * const newop = newAVREF(newGVOP(OP_GV, 0, - gv_fetchsv(((SVOP*)kid)->op_sv, TRUE, SVt_PVAV) )); + gv_fetchsv(((SVOP*)kid)->op_sv, GV_ADD, SVt_PVAV) )); if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX), "Array @%"SVf" missing the @ in argument %"IVdf" of %s()", ((SVOP*)kid)->op_sv, (IV)numargs, PL_op_desc[type]); +#ifdef PERL_MAD + op_getmad(kid,newop,'K'); +#else op_free(kid); +#endif kid = newop; kid->op_sibling = sibl; *tokid = kid; @@ -5386,12 +6196,16 @@ Perl_ck_fun(pTHX_ OP *o) (kid->op_private & OPpCONST_BARE)) { OP * const newop = newHVREF(newGVOP(OP_GV, 0, - gv_fetchsv(((SVOP*)kid)->op_sv, TRUE, SVt_PVHV) )); + gv_fetchsv(((SVOP*)kid)->op_sv, GV_ADD, SVt_PVHV) )); if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX), "Hash %%%"SVf" missing the %% in argument %"IVdf" of %s()", ((SVOP*)kid)->op_sv, (IV)numargs, PL_op_desc[type]); +#ifdef PERL_MAD + op_getmad(kid,newop,'K'); +#else op_free(kid); +#endif kid = newop; kid->op_sibling = sibl; *tokid = kid; @@ -5416,12 +6230,16 @@ Perl_ck_fun(pTHX_ OP *o) if (kid->op_type == OP_CONST && (kid->op_private & OPpCONST_BARE)) { - OP *newop = newGVOP(OP_GV, 0, - gv_fetchsv(((SVOP*)kid)->op_sv, TRUE, SVt_PVIO) ); + OP * const newop = newGVOP(OP_GV, 0, + gv_fetchsv(((SVOP*)kid)->op_sv, GV_ADD, SVt_PVIO)); if (!(o->op_private & 1) && /* if not unop */ kid == cLISTOPo->op_last) cLISTOPo->op_last = newop; +#ifdef PERL_MAD + op_getmad(kid,newop,'K'); +#else op_free(kid); +#endif kid = newop; } else if (kid->op_type == OP_READLINE) { @@ -5435,7 +6253,7 @@ Perl_ck_fun(pTHX_ OP *o) /* is this op a FH constructor? */ if (is_handle_constructor(o,numargs)) { - const char *name = Nullch; + const char *name = NULL; STRLEN len = 0; flags = 0; @@ -5456,7 +6274,7 @@ Perl_ck_fun(pTHX_ OP *o) else if (kid->op_type == OP_RV2SV && kUNOP->op_first->op_type == OP_GV) { - GV *gv = cGVOPx_gv(kUNOP->op_first); + GV * const gv = cGVOPx_gv(kUNOP->op_first); name = GvNAME(gv); len = GvNAMELEN(gv); } @@ -5464,9 +6282,9 @@ Perl_ck_fun(pTHX_ OP *o) || kid->op_type == OP_HELEM) { OP *op = ((BINOP*)kid)->op_first; - name = 0; + name = NULL; if (op) { - SV *tmpstr = Nullsv; + SV *tmpstr = NULL; const char * const a = kid->op_type == OP_AELEM ? "[]" : "{}"; @@ -5534,14 +6352,28 @@ Perl_ck_fun(pTHX_ OP *o) tokid = &kid->op_sibling; kid = kid->op_sibling; } +#ifdef PERL_MAD + if (kid && kid->op_type != OP_STUB) + return too_many_arguments(o,OP_DESC(o)); + o->op_private |= numargs; +#else + /* FIXME - should the numargs move as for the PERL_MAD case? */ o->op_private |= numargs; if (kid) return too_many_arguments(o,OP_DESC(o)); +#endif listkids(o); } else if (PL_opargs[type] & OA_DEFGV) { +#ifdef PERL_MAD + OP *newop = newUNOP(type, 0, newDEFSVOP()); + op_getmad(o,newop,'O'); + return newop; +#else + /* Ordering of these two is important to keep f_map.t passing. */ op_free(o); return newUNOP(type, 0, newDEFSVOP()); +#endif } if (oa) { @@ -5563,10 +6395,10 @@ Perl_ck_glob(pTHX_ OP *o) if ((o->op_flags & OPf_KIDS) && !cLISTOPo->op_first->op_sibling) append_elem(OP_GLOB, o, newDEFSVOP()); - if (!((gv = gv_fetchpv("glob", FALSE, SVt_PVCV)) + if (!((gv = gv_fetchpvs("glob", GV_NOTQUAL, SVt_PVCV)) && GvCVu(gv) && GvIMPORTED_CV(gv))) { - gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV); + gv = gv_fetchpvs("CORE::GLOBAL::glob", 0, SVt_PVCV); } #if !defined(PERL_EXTERNAL_GLOB) @@ -5575,11 +6407,11 @@ Perl_ck_glob(pTHX_ OP *o) GV *glob_gv; ENTER; Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT, - newSVpvn("File::Glob", 10), Nullsv, Nullsv, Nullsv); - gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV); - glob_gv = gv_fetchpv("File::Glob::csh_glob", FALSE, SVt_PVCV); + newSVpvs("File::Glob"), NULL, NULL, NULL); + gv = gv_fetchpvs("CORE::GLOBAL::glob", 0, SVt_PVCV); + glob_gv = gv_fetchpvs("File::Glob::csh_glob", 0, SVt_PVCV); GvCV(gv) = GvCV(glob_gv); - (void)SvREFCNT_inc((SV*)GvCV(gv)); + SvREFCNT_inc_void((SV*)GvCV(gv)); GvIMPORTED_CV_on(gv); LEAVE; } @@ -5612,13 +6444,13 @@ OP * Perl_ck_grep(pTHX_ OP *o) { dVAR; - LOGOP *gwop; + LOGOP *gwop = NULL; OP *kid; const OPCODE type = o->op_type == OP_GREPSTART ? OP_GREPWHILE : OP_MAPWHILE; I32 offset; o->op_ppaddr = PL_ppaddr[OP_GREPSTART]; - NewOp(1101, gwop, 1, LOGOP); + /* don't allocate gwop here, as we may leak it if PL_error_count > 0 */ if (o->op_flags & OPf_STACKED) { OP* k; @@ -5629,6 +6461,7 @@ Perl_ck_grep(pTHX_ OP *o) for (k = cUNOPx(kid)->op_first; k; k = k->op_next) { kid = k; } + NewOp(1101, gwop, 1, LOGOP); kid->op_next = (OP*)gwop; o->op_flags &= ~OPf_STACKED; } @@ -5645,6 +6478,8 @@ Perl_ck_grep(pTHX_ OP *o) Perl_croak(aTHX_ "panic: ck_grep"); kid = kUNOP->op_first; + if (!gwop) + NewOp(1101, gwop, 1, LOGOP); gwop->op_type = type; gwop->op_ppaddr = PL_ppaddr[type]; gwop->op_first = listkids(o); @@ -5652,7 +6487,7 @@ Perl_ck_grep(pTHX_ OP *o) gwop->op_other = LINKLIST(kid); kid->op_next = (OP*)gwop; offset = pad_findmy("$_"); - if (offset == NOT_IN_PAD || PAD_COMPNAME_FLAGS(offset) & SVpad_OUR) { + if (offset == NOT_IN_PAD || PAD_COMPNAME_FLAGS_isOUR(offset)) { o->op_private = gwop->op_private = 0; gwop->op_targ = pad_alloc(type, SVs_PADTMP); } @@ -5773,6 +6608,44 @@ Perl_ck_listiob(pTHX_ OP *o) } OP * +Perl_ck_say(pTHX_ OP *o) +{ + o = ck_listiob(o); + o->op_type = OP_PRINT; + cLISTOPo->op_last = cLISTOPo->op_last->op_sibling + = newSVOP(OP_CONST, 0, newSVpvs("\n")); + return o; +} + +OP * +Perl_ck_smartmatch(pTHX_ OP *o) +{ + dVAR; + if (0 == (o->op_flags & OPf_SPECIAL)) { + OP *first = cBINOPo->op_first; + OP *second = first->op_sibling; + + /* Implicitly take a reference to an array or hash */ + first->op_sibling = NULL; + first = cBINOPo->op_first = ref_array_or_hash(first); + second = first->op_sibling = ref_array_or_hash(second); + + /* Implicitly take a reference to a regular expression */ + if (first->op_type == OP_MATCH) { + first->op_type = OP_QR; + first->op_ppaddr = PL_ppaddr[OP_QR]; + } + if (second->op_type == OP_MATCH) { + second->op_type = OP_QR; + second->op_ppaddr = PL_ppaddr[OP_QR]; + } + } + + return o; +} + + +OP * Perl_ck_sassign(pTHX_ OP *o) { OP *kid = cLISTOPo->op_first; @@ -5793,34 +6666,27 @@ Perl_ck_sassign(pTHX_ OP *o) /* Now we do not need PADSV and SASSIGN. */ kid->op_sibling = o->op_sibling; /* NULL */ cLISTOPo->op_first = NULL; +#ifdef PERL_MAD + op_getmad(o,kid,'O'); + op_getmad(kkid,kid,'M'); +#else op_free(o); op_free(kkid); +#endif kid->op_private |= OPpTARGET_MY; /* Used for context settings */ return kid; } } - /* optimise C to C */ - if (kid->op_type == OP_UNDEF) { - OP * const kkid = kid->op_sibling; - if (kkid && kkid->op_type == OP_PADSV - && (kkid->op_private & OPpLVAL_INTRO)) - { - cLISTOPo->op_first = NULL; - kid->op_sibling = NULL; - op_free(o); - op_free(kid); - return kkid; - } - } return o; } OP * Perl_ck_match(pTHX_ OP *o) { - if (o->op_type != OP_QR) { + dVAR; + if (o->op_type != OP_QR && PL_compcv) { const I32 offset = pad_findmy("$_"); - if (offset != NOT_IN_PAD && !(PAD_COMPNAME_FLAGS(offset) & SVpad_OUR)) { + if (offset != NOT_IN_PAD && !(PAD_COMPNAME_FLAGS_isOUR(offset))) { o->op_targ = offset; o->op_private |= OPpTARGET_MY; } @@ -5836,16 +6702,21 @@ Perl_ck_method(pTHX_ OP *o) OP * const kid = cUNOPo->op_first; if (kid->op_type == OP_CONST) { SV* sv = kSVOP->op_sv; - if (!(strchr(SvPVX_const(sv), ':') || strchr(SvPVX_const(sv), '\''))) { + const char * const method = SvPVX_const(sv); + if (!(strchr(method, ':') || strchr(method, '\''))) { OP *cmop; if (!SvREADONLY(sv) || !SvFAKE(sv)) { - sv = newSVpvn_share(SvPVX_const(sv), SvCUR(sv), 0); + sv = newSVpvn_share(method, SvCUR(sv), 0); } else { - kSVOP->op_sv = Nullsv; + kSVOP->op_sv = NULL; } cmop = newSVOP(OP_METHOD_NAMED, 0, sv); +#ifdef PERL_MAD + op_getmad(o,cmop,'O'); +#else op_free(o); +#endif return cmop; } } @@ -5855,15 +6726,17 @@ Perl_ck_method(pTHX_ OP *o) OP * Perl_ck_null(pTHX_ OP *o) { + PERL_UNUSED_CONTEXT; return o; } OP * Perl_ck_open(pTHX_ OP *o) { + dVAR; HV * const table = GvHV(PL_hintgv); if (table) { - SV **svp = hv_fetch(table, "open_IN", 7, FALSE); + SV **svp = hv_fetchs(table, "open_IN", FALSE); if (svp && *svp) { const I32 mode = mode_from_discipline(*svp); if (mode & O_BINARY) @@ -5872,7 +6745,7 @@ Perl_ck_open(pTHX_ OP *o) o->op_private |= OPpOPEN_IN_CRLF; } - svp = hv_fetch(table, "open_OUT", 8, FALSE); + svp = hv_fetchs(table, "open_OUT", FALSE); if (svp && *svp) { const I32 mode = mode_from_discipline(*svp); if (mode & O_BINARY) @@ -5921,7 +6794,8 @@ Perl_ck_repeat(pTHX_ OP *o) OP * Perl_ck_require(pTHX_ OP *o) { - GV* gv = Nullgv; + dVAR; + GV* gv = NULL; if (o->op_flags & OPf_KIDS) { /* Shall we supply missing .pm? */ SVOP * const kid = (SVOP*)cUNOPo->op_first; @@ -5943,34 +6817,41 @@ Perl_ck_require(pTHX_ OP *o) for (s = SvPVX(sv); *s; s++) { if (*s == ':' && s[1] == ':') { + const STRLEN len = strlen(s+2)+1; *s = '/'; - Move(s+2, s+1, strlen(s+2)+1, char); + Move(s+2, s+1, len, char); SvCUR_set(sv, SvCUR(sv) - 1); } } - sv_catpvn(sv, ".pm", 3); + sv_catpvs(sv, ".pm"); SvFLAGS(sv) |= was_readonly; } } if (!(o->op_flags & OPf_SPECIAL)) { /* Wasn't written as CORE::require */ /* handle override, if any */ - gv = gv_fetchpv("require", FALSE, SVt_PVCV); + gv = gv_fetchpvs("require", GV_NOTQUAL, SVt_PVCV); if (!(gv && GvCVu(gv) && GvIMPORTED_CV(gv))) { - GV * const * const gvp = (GV**)hv_fetch(PL_globalstash, "require", 7, FALSE); - gv = gvp ? *gvp : Nullgv; + GV * const * const gvp = (GV**)hv_fetchs(PL_globalstash, "require", FALSE); + gv = gvp ? *gvp : NULL; } } if (gv && GvCVu(gv) && GvIMPORTED_CV(gv)) { OP * const kid = cUNOPo->op_first; + OP * newop; + cUNOPo->op_first = 0; +#ifndef PERL_MAD op_free(o); - return ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED, - append_elem(OP_LIST, kid, - scalar(newUNOP(OP_RV2CV, 0, - newGVOP(OP_GV, 0, - gv)))))); +#endif + newop = ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED, + append_elem(OP_LIST, kid, + scalar(newUNOP(OP_RV2CV, 0, + newGVOP(OP_GV, 0, + gv)))))); + op_getmad(o,newop,'O'); + return newop; } return ck_fun(o); @@ -5979,6 +6860,7 @@ Perl_ck_require(pTHX_ OP *o) OP * Perl_ck_return(pTHX_ OP *o) { + dVAR; if (CvLVALUE(PL_compcv)) { OP *kid; for (kid = cLISTOPo->op_first->op_sibling; kid; kid = kid->op_sibling) @@ -6011,15 +6893,26 @@ Perl_ck_select(pTHX_ OP *o) OP * Perl_ck_shift(pTHX_ OP *o) { + dVAR; const I32 type = o->op_type; if (!(o->op_flags & OPf_KIDS)) { OP *argop; - + /* FIXME - this can be refactored to reduce code in #ifdefs */ +#ifdef PERL_MAD + OP *oldo = o; +#else op_free(o); +#endif argop = newUNOP(OP_RV2AV, 0, scalar(newGVOP(OP_GV, 0, CvUNIQUE(PL_compcv) ? PL_argvgv : PL_defgv))); +#ifdef PERL_MAD + o = newUNOP(type, 0, scalar(argop)); + op_getmad(oldo,o,'O'); + return o; +#else return newUNOP(type, 0, scalar(argop)); +#endif } return scalar(modkids(ck_fun(o), type)); } @@ -6027,8 +6920,24 @@ Perl_ck_shift(pTHX_ OP *o) OP * Perl_ck_sort(pTHX_ OP *o) { + dVAR; OP *firstkid; + if (o->op_type == OP_SORT && (PL_hints & HINT_LOCALIZE_HH) != 0) + { + HV * const hinthv = GvHV(PL_hintgv); + if (hinthv) { + SV ** const svp = hv_fetchs(hinthv, "sort", FALSE); + if (svp) { + const I32 sorthints = (I32)SvIV(*svp); + if ((sorthints & HINT_SORT_QUICKSORT) != 0) + o->op_private |= OPpSORT_QSORT; + if ((sorthints & HINT_SORT_STABLE) != 0) + o->op_private |= OPpSORT_STABLE; + } + } + } + if (o->op_type == OP_SORT && o->op_flags & OPf_STACKED) simplify_sort(o); firstkid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ @@ -6090,6 +6999,7 @@ Perl_ck_sort(pTHX_ OP *o) STATIC void S_simplify_sort(pTHX_ OP *o) { + dVAR; register OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */ OP *k; int descending; @@ -6097,8 +7007,8 @@ S_simplify_sort(pTHX_ OP *o) const char *gvname; if (!(o->op_flags & OPf_STACKED)) return; - GvMULTI_on(gv_fetchpv("a", TRUE, SVt_PV)); - GvMULTI_on(gv_fetchpv("b", TRUE, SVt_PV)); + GvMULTI_on(gv_fetchpvs("a", GV_ADD|GV_NOTQUAL, SVt_PV)); + GvMULTI_on(gv_fetchpvs("b", GV_ADD|GV_NOTQUAL, SVt_PV)); kid = kUNOP->op_first; /* get past null */ if (kid->op_type != OP_SCOPE) return; @@ -6153,7 +7063,11 @@ S_simplify_sort(pTHX_ OP *o) o->op_private |= OPpSORT_NUMERIC | OPpSORT_INTEGER; kid = cLISTOPo->op_first->op_sibling; cLISTOPo->op_first->op_sibling = kid->op_sibling; /* bypass old block */ +#ifdef PERL_MAD + op_getmad(kid,o,'S'); /* then delete it */ +#else op_free(kid); /* then delete it */ +#endif } OP * @@ -6172,7 +7086,7 @@ Perl_ck_split(pTHX_ OP *o) op_free(cLISTOPo->op_first); cLISTOPo->op_first = kid; if (!kid) { - cLISTOPo->op_first = kid = newSVOP(OP_CONST, 0, newSVpvn(" ", 1)); + cLISTOPo->op_first = kid = newSVOP(OP_CONST, 0, newSVpvs(" ")); cLISTOPo->op_last = kid; /* There was only one element previously */ } @@ -6231,17 +7145,18 @@ Perl_ck_join(pTHX_ OP *o) OP * Perl_ck_subr(pTHX_ OP *o) { + dVAR; OP *prev = ((cUNOPo->op_first->op_sibling) ? cUNOPo : ((UNOP*)cUNOPo->op_first))->op_first; OP *o2 = prev->op_sibling; OP *cvop; - char *proto = 0; - CV *cv = 0; - GV *namegv = 0; + char *proto = NULL; + CV *cv = NULL; + GV *namegv = NULL; int optional = 0; I32 arg = 0; I32 contextclass = 0; - char *e = 0; + char *e = NULL; bool delete_op = 0; o->op_private |= OPpENTERSUB_HASTARG; @@ -6281,15 +7196,20 @@ Perl_ck_subr(pTHX_ OP *o) if (o2->op_type == OP_CONST) o2->op_private &= ~OPpCONST_STRICT; else if (o2->op_type == OP_LIST) { - OP * const o = ((UNOP*)o2)->op_first->op_sibling; - if (o && o->op_type == OP_CONST) - o->op_private &= ~OPpCONST_STRICT; + OP * const sib = ((UNOP*)o2)->op_first->op_sibling; + if (sib && sib->op_type == OP_CONST) + sib->op_private &= ~OPpCONST_STRICT; } } o->op_private |= (PL_hints & HINT_STRICT_REFS); if (PERLDB_SUB && PL_curstash != PL_debstash) o->op_private |= OPpENTERSUB_DB; while (o2 != cvop) { + OP* o3; + if (PL_madskills && o2->op_type == OP_NULL) + o3 = ((UNOP*)o2)->op_first; + else + o3 = o2; if (proto) { switch (*proto) { case '\0': @@ -6311,22 +7231,22 @@ Perl_ck_subr(pTHX_ OP *o) case '&': proto++; arg++; - if (o2->op_type != OP_REFGEN && o2->op_type != OP_UNDEF) + if (o3->op_type != OP_REFGEN && o3->op_type != OP_UNDEF) bad_type(arg, arg == 1 ? "block or sub {}" : "sub {}", - gv_ename(namegv), o2); + gv_ename(namegv), o3); break; case '*': /* '*' allows any scalar type, including bareword */ proto++; arg++; - if (o2->op_type == OP_RV2GV) + if (o3->op_type == OP_RV2GV) goto wrapref; /* autoconvert GLOB -> GLOBref */ - else if (o2->op_type == OP_CONST) - o2->op_private &= ~OPpCONST_STRICT; - else if (o2->op_type == OP_ENTERSUB) { + else if (o3->op_type == OP_CONST) + o3->op_private &= ~OPpCONST_STRICT; + else if (o3->op_type == OP_ENTERSUB) { /* accidental subroutine, revert to bareword */ - OP *gvop = ((UNOP*)o2)->op_first; + OP *gvop = ((UNOP*)o3)->op_first; if (gvop && gvop->op_type == OP_NULL) { gvop = ((UNOP*)gvop)->op_first; if (gvop) { @@ -6339,10 +7259,15 @@ Perl_ck_subr(pTHX_ OP *o) { GV * const gv = cGVOPx_gv(gvop); OP * const sibling = o2->op_sibling; - SV * const n = newSVpvn("",0); + SV * const n = newSVpvs(""); +#ifdef PERL_MAD + OP *oldo2 = o2; +#else op_free(o2); +#endif gv_fullname4(n, gv, "", FALSE); o2 = newSVOP(OP_CONST, 0, n); + op_getmad(oldo2,o2,'O'); prev->op_sibling = o2; o2->op_sibling = sibling; } @@ -6371,52 +7296,54 @@ Perl_ck_subr(pTHX_ OP *o) break; case ']': if (contextclass) { + /* XXX We shouldn't be modifying proto, so we can const proto */ char *p = proto; const char s = *p; contextclass = 0; *p = '\0'; while (*--p != '['); bad_type(arg, Perl_form(aTHX_ "one of %s", p), - gv_ename(namegv), o2); + gv_ename(namegv), o3); *proto = s; } else goto oops; break; case '*': - if (o2->op_type == OP_RV2GV) + if (o3->op_type == OP_RV2GV) goto wrapref; if (!contextclass) - bad_type(arg, "symbol", gv_ename(namegv), o2); + bad_type(arg, "symbol", gv_ename(namegv), o3); break; case '&': - if (o2->op_type == OP_ENTERSUB) + if (o3->op_type == OP_ENTERSUB) goto wrapref; if (!contextclass) - bad_type(arg, "subroutine entry", gv_ename(namegv), o2); + bad_type(arg, "subroutine entry", gv_ename(namegv), + o3); break; case '$': - if (o2->op_type == OP_RV2SV || - o2->op_type == OP_PADSV || - o2->op_type == OP_HELEM || - o2->op_type == OP_AELEM || - o2->op_type == OP_THREADSV) + if (o3->op_type == OP_RV2SV || + o3->op_type == OP_PADSV || + o3->op_type == OP_HELEM || + o3->op_type == OP_AELEM || + o3->op_type == OP_THREADSV) goto wrapref; if (!contextclass) - bad_type(arg, "scalar", gv_ename(namegv), o2); + bad_type(arg, "scalar", gv_ename(namegv), o3); break; case '@': - if (o2->op_type == OP_RV2AV || - o2->op_type == OP_PADAV) + if (o3->op_type == OP_RV2AV || + o3->op_type == OP_PADAV) goto wrapref; if (!contextclass) - bad_type(arg, "array", gv_ename(namegv), o2); + bad_type(arg, "array", gv_ename(namegv), o3); break; case '%': - if (o2->op_type == OP_RV2HV || - o2->op_type == OP_PADHV) + if (o3->op_type == OP_RV2HV || + o3->op_type == OP_PADHV) goto wrapref; if (!contextclass) - bad_type(arg, "hash", gv_ename(namegv), o2); + bad_type(arg, "hash", gv_ename(namegv), o3); break; wrapref: { @@ -6456,8 +7383,13 @@ Perl_ck_subr(pTHX_ OP *o) (*proto && *proto != '@' && *proto != '%' && *proto != ';')) return too_few_arguments(o, gv_ename(namegv)); if(delete_op) { +#ifdef PERL_MAD + OP *oldo = o; +#else op_free(o); +#endif o=newSVOP(OP_CONST, 0, newSViv(0)); + op_getmad(oldo,o,'O'); } return o; } @@ -6465,11 +7397,28 @@ Perl_ck_subr(pTHX_ OP *o) OP * Perl_ck_svconst(pTHX_ OP *o) { + PERL_UNUSED_CONTEXT; SvREADONLY_on(cSVOPo->op_sv); return o; } OP * +Perl_ck_chdir(pTHX_ OP *o) +{ + if (o->op_flags & OPf_KIDS) { + SVOP *kid = (SVOP*)cUNOPo->op_first; + + if (kid && kid->op_type == OP_CONST && + (kid->op_private & OPpCONST_BARE)) + { + o->op_flags |= OPf_SPECIAL; + kid->op_private &= ~OPpCONST_STRICT; + } + } + return ck_fun(o); +} + +OP * Perl_ck_trunc(pTHX_ OP *o) { if (o->op_flags & OPf_KIDS) { @@ -6523,7 +7472,7 @@ void Perl_peep(pTHX_ register OP *o) { dVAR; - register OP* oldop = 0; + register OP* oldop = NULL; if (!o || o->op_opt) return; @@ -6559,6 +7508,18 @@ Perl_peep(pTHX_ register OP *o) SvREADONLY_on(PAD_SVl(ix)); SvREFCNT_dec(cSVOPo->op_sv); } + else if (o->op_type == OP_CONST + && cSVOPo->op_sv == &PL_sv_undef) { + /* PL_sv_undef is hack - it's unsafe to store it in the + AV that is the pad, because av_fetch treats values of + PL_sv_undef as a "free" AV entry and will merrily + replace them with a new SV, causing pad_alloc to think + that this pad slot is free. (When, clearly, it is not) + */ + SvOK_off(PAD_SVl(ix)); + SvPADTMP_on(PAD_SVl(ix)); + SvREADONLY_on(PAD_SVl(ix)); + } else { SvREFCNT_dec(PAD_SVl(ix)); SvPADTMP_on(cSVOPo->op_sv); @@ -6566,7 +7527,7 @@ Perl_peep(pTHX_ register OP *o) /* XXX I don't know how this isn't readonly already. */ SvREADONLY_on(PAD_SVl(ix)); } - cSVOPo->op_sv = Nullsv; + cSVOPo->op_sv = NULL; o->op_targ = ix; } #endif @@ -6627,7 +7588,7 @@ Perl_peep(pTHX_ register OP *o) case OP_PADAV: case OP_GV: if (o->op_type == OP_PADAV || o->op_next->op_type == OP_RV2AV) { - OP* pop = (o->op_type == OP_PADAV) ? + OP* const pop = (o->op_type == OP_PADAV) ? o->op_next : o->op_next->op_next; IV i; if (pop && pop->op_type == OP_CONST && @@ -6677,7 +7638,7 @@ Perl_peep(pTHX_ register OP *o) if (SvTYPE(gv) == SVt_PVGV && GvCV(gv) && SvPVX_const(GvCV(gv))) { /* XXX could check prototype here instead of just carping */ SV * const sv = sv_newmortal(); - gv_efullname3(sv, gv, Nullch); + gv_efullname3(sv, gv, NULL); Perl_warner(aTHX_ packWARN(WARN_PROTOTYPE), "%"SVf"() called too early to check prototype", sv); @@ -6790,9 +7751,9 @@ Perl_peep(pTHX_ register OP *o) if (rop->op_type != OP_RV2HV || rop->op_first->op_type != OP_PADSV) break; lexname = *av_fetch(PL_comppad_name, rop->op_first->op_targ, TRUE); - if (!(SvFLAGS(lexname) & SVpad_TYPED)) + if (!SvPAD_TYPED(lexname)) break; - fields = (GV**)hv_fetch(SvSTASH(lexname), "FIELDS", 6, FALSE); + fields = (GV**)hv_fetchs(SvSTASH(lexname), "FIELDS", FALSE); if (!fields || !GvHV(*fields)) break; key = SvPV_const(*svp, keylen); @@ -6839,9 +7800,9 @@ Perl_peep(pTHX_ register OP *o) } lexname = *av_fetch(PL_comppad_name, rop->op_targ, TRUE); - if (!(SvFLAGS(lexname) & SVpad_TYPED)) + if (!SvPAD_TYPED(lexname)) break; - fields = (GV**)hv_fetch(SvSTASH(lexname), "FIELDS", 6, FALSE); + fields = (GV**)hv_fetchs(SvSTASH(lexname), "FIELDS", FALSE); if (!fields || !GvHV(*fields)) break; /* Again guessing that the pushmark can be jumped over.... */ @@ -7072,6 +8033,58 @@ Perl_peep(pTHX_ register OP *o) break; } + + case OP_SASSIGN: { + OP *rv2gv; + UNOP *refgen, *rv2cv; + LISTOP *exlist; + + /* I do not understand this, but if o->op_opt isn't set to 1, + various tests in ext/B/t/bytecode.t fail with no readily + apparent cause. */ + + o->op_opt = 1; + + + if ((o->op_flags && OPf_WANT) != OPf_WANT_VOID) + break; + + if ((o->op_private & ~OPpASSIGN_BACKWARDS) != 2) + break; + + rv2gv = ((BINOP *)o)->op_last; + if (!rv2gv || rv2gv->op_type != OP_RV2GV) + break; + + refgen = (UNOP *)((BINOP *)o)->op_first; + + if (!refgen || refgen->op_type != OP_REFGEN) + break; + + exlist = (LISTOP *)refgen->op_first; + if (!exlist || exlist->op_type != OP_NULL + || exlist->op_targ != OP_LIST) + break; + + if (exlist->op_first->op_type != OP_PUSHMARK) + break; + + rv2cv = (UNOP*)exlist->op_last; + + if (rv2cv->op_type != OP_RV2CV) + break; + + assert ((rv2gv->op_private & OPpDONT_INIT_GV) == 0); + assert ((o->op_private & OPpASSIGN_CV_TO_GV) == 0); + assert ((rv2cv->op_private & OPpMAY_RETURN_CONSTANT) == 0); + + o->op_private |= OPpASSIGN_CV_TO_GV; + rv2gv->op_private |= OPpDONT_INIT_GV; + rv2cv->op_private |= OPpMAY_RETURN_CONSTANT; + + break; + } + default: o->op_opt = 1; @@ -7085,6 +8098,7 @@ Perl_peep(pTHX_ register OP *o) char* Perl_custom_op_name(pTHX_ const OP* o) { + dVAR; const IV index = PTR2IV(o->op_ppaddr); SV* keysv; HE* he; @@ -7104,6 +8118,7 @@ Perl_custom_op_name(pTHX_ const OP* o) char* Perl_custom_op_desc(pTHX_ const OP* o) { + dVAR; const IV index = PTR2IV(o->op_ppaddr); SV* keysv; HE* he; @@ -7126,8 +8141,10 @@ Perl_custom_op_desc(pTHX_ const OP* o) static void const_sv_xsub(pTHX_ CV* cv) { + dVAR; dXSARGS; if (items != 0) { + /*EMPTY*/; #if 0 Perl_croak(aTHX_ "usage: %s::%s()", HvNAME_get(GvSTASH(CvGV(cv))), GvNAME(CvGV(cv)));