+#line 2 "op.c"
/* op.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
/* "register" allocation */
PADOFFSET
-Perl_allocmy(pTHX_ const char *const name)
+Perl_allocmy(pTHX_ const char *const name, const STRLEN len, const U32 flags)
{
dVAR;
PADOFFSET off;
PERL_ARGS_ASSERT_ALLOCMY;
+ if (flags)
+ Perl_croak(aTHX_ "panic: allocmy illegal flag bits 0x%" UVxf,
+ (UV)flags);
+
+ /* Until we're using the length for real, cross check that we're being
+ told the truth. */
+ assert(strlen(name) == len);
+
/* complain about "my $<special_var>" etc etc */
- if (*name &&
+ if (len &&
!(is_our ||
isALPHA(name[1]) ||
(USE_UTF8_IN_NAMES && UTF8_IS_START(name[1])) ||
- (name[1] == '_' && (*name == '$' || name[2]))))
+ (name[1] == '_' && (*name == '$' || len > 2))))
{
/* name[2] is true if strlen(name) > 2 */
if (!isPRINT(name[1]) || strchr("\t\n\r\f", name[1])) {
- yyerror(Perl_form(aTHX_ "Can't use global %c^%c%s in \"%s\"",
- name[0], toCTRL(name[1]), name + 2,
+ yyerror(Perl_form(aTHX_ "Can't use global %c^%c%.*s in \"%s\"",
+ name[0], toCTRL(name[1]), (int)(len - 2), name + 2,
PL_parser->in_my == KEY_state ? "state" : "my"));
} else {
- yyerror(Perl_form(aTHX_ "Can't use global %s in \"%s\"",name,
+ yyerror(Perl_form(aTHX_ "Can't use global %.*s in \"%s\"", (int) len, name,
PL_parser->in_my == KEY_state ? "state" : "my"));
}
}
- /* check for duplicate declaration */
- pad_check_dup(name, is_our, (PL_curstash ? PL_curstash : PL_defstash));
-
/* allocate a spare slot and store the name in that slot */
- off = pad_add_name(name,
+ off = pad_add_name(name, len,
+ is_our ? padadd_OUR :
+ PL_parser->in_my == KEY_state ? padadd_STATE : 0,
PL_parser->in_my_stash,
(is_our
/* $_ is always in main::, even with our */
? (PL_curstash && !strEQ(name,"$_") ? PL_curstash : PL_defstash)
: NULL
- ),
- 0, /* not fake */
- PL_parser->in_my == KEY_state
+ )
);
/* anon sub prototypes contains state vars should always be cloned,
* otherwise the state var would be shared between anon subs */
o->op_targ = 0;
goto retry;
}
+ case OP_ENTERTRY:
case OP_ENTEREVAL: /* Was holding hints. */
o->op_targ = 0;
break;
case OP_AELEMFAST:
if (! (o->op_type == OP_AELEMFAST && o->op_flags & OPf_SPECIAL)) {
/* not an OP_PADAV replacement */
+ GV *gv = (o->op_type == OP_GV || o->op_type == OP_GVSV)
+#ifdef USE_ITHREADS
+ && PL_curpad
+#endif
+ ? cGVOPo_gv : NULL;
+ /* It's possible during global destruction that the GV is freed
+ before the optree. Whilst the SvREFCNT_inc is happy to bump from
+ 0 to 1 on a freed SV, the corresponding SvREFCNT_dec from 1 to 0
+ will trigger an assertion failure, because the entry to sv_clear
+ checks that the scalar is not already freed. A check of for
+ !SvIS_FREED(gv) turns out to be invalid, because during global
+ destruction the reference count can be forced down to zero
+ (with SVf_BREAK set). In which case raising to 1 and then
+ dropping to 0 triggers cleanup before it should happen. I
+ *think* that this might actually be a general, systematic,
+ weakness of the whole idea of SVf_BREAK, in that code *is*
+ allowed to raise and lower references during global destruction,
+ so any *valid* code that happens to do this during global
+ destruction might well trigger premature cleanup. */
+ bool still_valid = gv && SvREFCNT(gv);
+
+ if (still_valid)
+ SvREFCNT_inc_simple_void(gv);
#ifdef USE_ITHREADS
if (cPADOPo->op_padix > 0) {
/* No GvIN_PAD_off(cGVOPo_gv) here, because other references
SvREFCNT_dec(cSVOPo->op_sv);
cSVOPo->op_sv = NULL;
#endif
+ if (still_valid) {
+ int try_downgrade = SvREFCNT(gv) == 2;
+ SvREFCNT_dec(gv);
+ if (try_downgrade)
+ gv_try_downgrade(gv);
+ }
}
break;
case OP_METHOD_NAMED:
PL_curcop = &PL_compiling;
break;
case OP_SORT:
- if (ckWARN(WARN_VOID))
- Perl_warner(aTHX_ packWARN(WARN_VOID), "Useless use of sort in scalar context");
+ Perl_ck_warner(aTHX_ packWARN(WARN_VOID), "Useless use of sort in scalar context");
break;
}
return o;
want = o->op_flags & OPf_WANT;
if ((want && want != OPf_WANT_SCALAR)
|| (PL_parser && PL_parser->error_count)
- || o->op_type == OP_RETURN)
+ || o->op_type == OP_RETURN || o->op_type == OP_REQUIRE)
{
return o;
}
useless = OP_DESC(o);
break;
+ case OP_SPLIT:
+ kid = cLISTOPo->op_first;
+ if (kid && kid->op_type == OP_PUSHRE
+#ifdef USE_ITHREADS
+ && !((PMOP*)kid)->op_pmreplrootu.op_pmtargetoff)
+#else
+ && !((PMOP*)kid)->op_pmreplrootu.op_pmtargetgv)
+#endif
+ useless = OP_DESC(o);
+ break;
+
case OP_NOT:
kid = cUNOPo->op_first;
if (kid->op_type != OP_MATCH && kid->op_type != OP_SUBST &&
case OP_ENTEREVAL:
scalarkids(o);
break;
- case OP_REQUIRE:
- /* all requires must return a boolean value */
- o->op_flags &= ~OPf_WANT;
- /* FALL THROUGH */
case OP_SCALAR:
return scalar(o);
}
- if (useless && ckWARN(WARN_VOID))
- Perl_warner(aTHX_ packWARN(WARN_VOID), "Useless use of %s in void context", useless);
+ if (useless)
+ Perl_ck_warner(aTHX_ packWARN(WARN_VOID), "Useless use of %s in void context", useless);
return o;
}
}
PL_curcop = &PL_compiling;
break;
- case OP_REQUIRE:
- /* all requires must return a boolean value */
- o->op_flags &= ~OPf_WANT;
- return scalar(o);
}
return o;
}
case OP_DBSTATE:
PL_modcount = RETURN_UNLIMITED_NUMBER;
break;
+ case OP_AV2ARYLEN:
+ PL_hints |= HINT_BLOCK_SCOPE;
+ if (type == OP_LEAVESUBLV)
+ o->op_private |= OPpMAYBE_LVSUB;
+ PL_modcount++;
+ break;
case OP_RV2SV:
ref(cUNOPo->op_first, o->op_type);
localize = 1;
/* FALL THROUGH */
case OP_GV:
- case OP_AV2ARYLEN:
PL_hints |= HINT_BLOCK_SCOPE;
case OP_SASSIGN:
case OP_ANDASSIGN:
case 0:
break;
case -1:
- if (ckWARN(WARN_SYNTAX)) {
- Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
- "Useless localization of %s", OP_DESC(o));
- }
+ Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX),
+ "Useless localization of %s", OP_DESC(o));
}
}
else if (type != OP_GREPSTART && type != OP_ENTERSUB
S_newDEFSVOP(pTHX)
{
dVAR;
- const PADOFFSET offset = pad_findmy("$_");
+ const PADOFFSET offset = Perl_pad_findmy(aTHX_ STR_WITH_LEN("$_"), 0);
if (offset == NOT_IN_PAD || PAD_COMPNAME_FLAGS_isOUR(offset)) {
return newSVREF(newGVOP(OP_GV, 0, PL_defgv));
}
dVAR;
LISTOP *listop;
+ assert((PL_opargs[type] & OA_CLASS_MASK) == OA_LISTOP);
+
NewOp(1101, listop, 1, LISTOP);
listop->op_type = (OPCODE)type;
{
dVAR;
OP *o;
+
+ assert((PL_opargs[type] & OA_CLASS_MASK) == OA_BASEOP
+ || (PL_opargs[type] & OA_CLASS_MASK) == OA_BASEOP_OR_UNOP
+ || (PL_opargs[type] & OA_CLASS_MASK) == OA_FILESTATOP
+ || (PL_opargs[type] & OA_CLASS_MASK) == OA_LOOPEXOP);
+
NewOp(1101, o, 1, OP);
o->op_type = (OPCODE)type;
o->op_ppaddr = PL_ppaddr[type];
dVAR;
UNOP *unop;
+ assert((PL_opargs[type] & OA_CLASS_MASK) == OA_UNOP
+ || (PL_opargs[type] & OA_CLASS_MASK) == OA_BASEOP_OR_UNOP
+ || (PL_opargs[type] & OA_CLASS_MASK) == OA_FILESTATOP
+ || (PL_opargs[type] & OA_CLASS_MASK) == OA_LOOPEXOP
+ || type == OP_SASSIGN
+ || type == OP_ENTERTRY
+ || type == OP_NULL );
+
if (!first)
first = newOP(OP_STUB, 0);
if (PL_opargs[type] & OA_MARK)
{
dVAR;
BINOP *binop;
+
+ assert((PL_opargs[type] & OA_CLASS_MASK) == OA_BINOP
+ || type == OP_SASSIGN || type == OP_NULL );
+
NewOp(1101, binop, 1, BINOP);
if (!first)
}
}
- if(ckWARN(WARN_MISC)) {
- if(del && rlen == tlen) {
- Perl_warner(aTHX_ packWARN(WARN_MISC), "Useless use of /d modifier in transliteration operator");
- } else if(rlen > tlen) {
- Perl_warner(aTHX_ packWARN(WARN_MISC), "Replacement list is longer than search list");
- }
+ if(del && rlen == tlen) {
+ Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Useless use of /d modifier in transliteration operator");
+ } else if(rlen > tlen) {
+ Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Replacement list is longer than search list");
}
if (grows)
dVAR;
PMOP *pmop;
+ assert((PL_opargs[type] & OA_CLASS_MASK) == OA_PMOP);
+
NewOp(1101, pmop, 1, PMOP);
pmop->op_type = (OPCODE)type;
pmop->op_ppaddr = PL_ppaddr[type];
PERL_ARGS_ASSERT_NEWSVOP;
+ assert((PL_opargs[type] & OA_CLASS_MASK) == OA_SVOP
+ || (PL_opargs[type] & OA_CLASS_MASK) == OA_PVOP_OR_SVOP
+ || (PL_opargs[type] & OA_CLASS_MASK) == OA_FILESTATOP);
+
NewOp(1101, svop, 1, SVOP);
svop->op_type = (OPCODE)type;
svop->op_ppaddr = PL_ppaddr[type];
PERL_ARGS_ASSERT_NEWPADOP;
+ assert((PL_opargs[type] & OA_CLASS_MASK) == OA_SVOP
+ || (PL_opargs[type] & OA_CLASS_MASK) == OA_PVOP_OR_SVOP
+ || (PL_opargs[type] & OA_CLASS_MASK) == OA_FILESTATOP);
+
NewOp(1101, padop, 1, PADOP);
padop->op_type = (OPCODE)type;
padop->op_ppaddr = PL_ppaddr[type];
{
dVAR;
PVOP *pvop;
+
+ assert((PL_opargs[type] & OA_CLASS_MASK) == OA_PVOP_OR_SVOP
+ || (PL_opargs[type] & OA_CLASS_MASK) == OA_LOOPEXOP);
+
NewOp(1101, pvop, 1, PVOP);
pvop->op_type = (OPCODE)type;
pvop->op_ppaddr = PL_ppaddr[type];
#endif
}
+void
+Perl_package_version( pTHX_ OP *v )
+{
+ dVAR;
+ U32 savehints = PL_hints;
+ PERL_ARGS_ASSERT_PACKAGE_VERSION;
+ PL_hints &= ~HINT_STRICT_VARS;
+ sv_setsv( GvSV(gv_fetchpvs("VERSION", GV_ADDMULTI, SVt_PV)), cSVOPx(v)->op_sv );
+ PL_hints = savehints;
+ op_free(v);
+}
+
#ifdef PERL_MAD
OP*
#else
|| left->op_type == OP_PADHV
|| left->op_type == OP_PADANY))
{
- maybe_common_vars = FALSE;
+ if (left->op_type == OP_PADSV) maybe_common_vars = FALSE;
if (left->op_private & OPpPAD_STATE) {
/* All single variable list context state assignments, hence
state ($a) = ...
if (type == OP_XOR) /* Not short circuit, but here by precedence. */
return newBINOP(type, flags, scalar(first), scalar(other));
+ assert((PL_opargs[type] & OA_CLASS_MASK) == OA_LOGOP);
+
scalarboolean(first);
/* optimize AND and OR ops that have NOTs as children */
if (first->op_type == OP_NOT
if ((cstop = search_const(first))) {
if (cstop->op_private & OPpCONST_STRICT)
no_bareword_allowed(cstop);
- else if ((cstop->op_private & OPpCONST_BARE) && ckWARN(WARN_BAREWORD))
- Perl_warner(aTHX_ packWARN(WARN_BAREWORD), "Bareword found in conditional");
+ else if ((cstop->op_private & OPpCONST_BARE))
+ Perl_ck_warner(aTHX_ packWARN(WARN_BAREWORD), "Bareword found in conditional");
if ((type == OP_AND && SvTRUE(((SVOP*)cstop)->op_sv)) ||
(type == OP_OR && !SvTRUE(((SVOP*)cstop)->op_sv)) ||
(type == OP_DOR && !SvOK(((SVOP*)cstop)->op_sv))) {
if ((o2->op_type == OP_PADSV || o2->op_type == OP_PADAV
|| o2->op_type == OP_PADHV)
&& o2->op_private & OPpLVAL_INTRO
- && !(o2->op_private & OPpPAD_STATE)
- && ckWARN(WARN_DEPRECATED))
+ && !(o2->op_private & OPpPAD_STATE))
{
- Perl_warner(aTHX_ packWARN(WARN_DEPRECATED),
- "Deprecated use of my() in false conditional");
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED),
+ "Deprecated use of my() in false conditional");
}
*otherp = NULL;
if (expr) {
if (once && expr->op_type == OP_CONST && !SvTRUE(((SVOP*)expr)->op_sv))
return block; /* do {} while 0 does once */
- if (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB
+ if (expr->op_type == OP_READLINE
+ || expr->op_type == OP_READDIR
+ || expr->op_type == OP_GLOB
|| (expr->op_type == OP_NULL && expr->op_targ == OP_GLOB)) {
expr = newUNOP(OP_DEFINED, 0,
newASSIGNOP(0, newDEFSVOP(), 0, expr) );
const OP * const k2 = k1 ? k1->op_sibling : NULL;
switch (expr->op_type) {
case OP_NULL:
- if (k2 && k2->op_type == OP_READLINE
+ if (k2 && (k2->op_type == OP_READLINE || k2->op_type == OP_READDIR)
&& (k2->op_flags & OPf_STACKED)
&& ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR))
expr = newUNOP(OP_DEFINED, 0, expr);
PERL_UNUSED_ARG(debuggable);
if (expr) {
- if (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB
+ if (expr->op_type == OP_READLINE
+ || expr->op_type == OP_READDIR
+ || expr->op_type == OP_GLOB
|| (expr->op_type == OP_NULL && expr->op_targ == OP_GLOB)) {
expr = newUNOP(OP_DEFINED, 0,
newASSIGNOP(0, newDEFSVOP(), 0, expr) );
const OP * const k2 = (k1) ? k1->op_sibling : NULL;
switch (expr->op_type) {
case OP_NULL:
- if (k2 && k2->op_type == OP_READLINE
+ if (k2 && (k2->op_type == OP_READLINE || k2->op_type == OP_READDIR)
&& (k2->op_flags & OPf_STACKED)
&& ((k1->op_flags & OPf_WANT) == OPf_WANT_SCALAR))
expr = newUNOP(OP_DEFINED, 0, expr);
}
}
else {
- const PADOFFSET offset = pad_findmy("$_");
+ const PADOFFSET offset = Perl_pad_findmy(aTHX_ STR_WITH_LEN("$_"), 0);
if (offset == NOT_IN_PAD || PAD_COMPNAME_FLAGS_isOUR(offset)) {
sv = newGVOP(OP_GV, 0, PL_defgv);
}
PERL_ARGS_ASSERT_NEWLOOPEX;
+ assert((PL_opargs[type] & OA_CLASS_MASK) == OA_LOOPEXOP);
+
if (type != OP_GOTO || label->op_type == OP_CONST) {
/* "last()" means "last" */
if (label->op_type == OP_STUB && (label->op_flags & OPf_PARENS))
&& looks_like_bool(cLOGOPo->op_first->op_sibling));
case OP_NULL:
+ case OP_SCALAR:
return (
o->op_flags & OPf_KIDS
&& looks_like_bool(cUNOPo->op_first));
- case OP_SCALAR:
- return looks_like_bool(cUNOPo->op_first);
-
-
case OP_ENTERSUB:
case OP_NOT: case OP_XOR:
maximum a prototype before. */
if (SvTYPE(gv) > SVt_NULL) {
if (!SvPOK((const SV *)gv)
- && !(SvIOK((const SV *)gv) && SvIVX((const SV *)gv) == -1)
- && ckWARN_d(WARN_PROTOTYPE))
+ && !(SvIOK((const SV *)gv) && SvIVX((const SV *)gv) == -1))
{
- Perl_warner(aTHX_ packWARN(WARN_PROTOTYPE), "Runaway prototype");
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_PROTOTYPE), "Runaway prototype");
}
cv_ckproto_len((const CV *)gv, NULL, ps, ps_len);
}
)&& !attrs) {
if (CvFLAGS(PL_compcv)) {
/* might have had built-in attrs applied */
- CvFLAGS(cv) |= (CvFLAGS(PL_compcv) & CVf_BUILTIN_ATTRS);
+ if (CvLVALUE(PL_compcv) && ! CvLVALUE(cv) && ckWARN(WARN_MISC))
+ Perl_warner(aTHX_ packWARN(WARN_MISC), "lvalue attribute ignored after the subroutine has been defined");
+ CvFLAGS(cv) |= (CvFLAGS(PL_compcv) & CVf_BUILTIN_ATTRS & ~CVf_LVALUE);
}
/* just a "sub foo;" when &foo is already defined */
SAVEFREESV(PL_compcv);
&& block->op_type != OP_NULL
#endif
) {
+ cv_flags_t existing_builtin_attrs = CvFLAGS(cv) & CVf_BUILTIN_ATTRS;
cv_undef(cv);
- CvFLAGS(cv) = CvFLAGS(PL_compcv);
+ CvFLAGS(cv) = CvFLAGS(PL_compcv) | existing_builtin_attrs;
if (!CvWEAKOUTSIDE(cv))
SvREFCNT_dec(CvOUTSIDE(cv));
CvOUTSIDE(cv) = CvOUTSIDE(PL_compcv);
if (PL_madskills) {
if (strEQ(name, "import")) {
PL_formfeed = MUTABLE_SV(cv);
- Perl_warner(aTHX_ packWARN(WARN_VOID), "%lx\n", (long)cv);
+ /* diag_listed_as: SKIPME */
+ Perl_warner(aTHX_ packWARN(WARN_VOID), "0x%"UVxf"\n", PTR2UV(cv));
}
}
GvCVGEN(gv) = 0;
return;
} else if (*name == 'C') {
if (strEQ(name, "CHECK")) {
- if (PL_main_start && ckWARN(WARN_VOID))
- Perl_warner(aTHX_ packWARN(WARN_VOID),
- "Too late to run CHECK block");
+ if (PL_main_start)
+ Perl_ck_warner(aTHX_ packWARN(WARN_VOID),
+ "Too late to run CHECK block");
Perl_av_create_and_unshift_one(aTHX_ &PL_checkav, MUTABLE_SV(cv));
}
else
return;
} else if (*name == 'I') {
if (strEQ(name, "INIT")) {
- if (PL_main_start && ckWARN(WARN_VOID))
- Perl_warner(aTHX_ packWARN(WARN_VOID),
- "Too late to run INIT block");
+ if (PL_main_start)
+ Perl_ck_warner(aTHX_ packWARN(WARN_VOID),
+ "Too late to run INIT block");
Perl_av_create_and_push(aTHX_ &PL_initav, MUTABLE_SV(cv));
}
else
break;
default:
- if (ckWARN_d(WARN_INTERNAL))
- Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "oops: oopsAV");
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL), "oops: oopsAV");
break;
}
return o;
break;
default:
- if (ckWARN_d(WARN_INTERNAL))
- Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "oops: oopsHV");
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL), "oops: oopsHV");
break;
}
return o;
o->op_ppaddr = PL_ppaddr[OP_PADAV];
return o;
}
- else if ((o->op_type == OP_RV2AV || o->op_type == OP_PADAV)
- && ckWARN(WARN_DEPRECATED)) {
- Perl_warner(aTHX_ packWARN(WARN_DEPRECATED),
- "Using an array as a reference is deprecated");
+ else if ((o->op_type == OP_RV2AV || o->op_type == OP_PADAV)) {
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED),
+ "Using an array as a reference is deprecated");
}
return newUNOP(OP_RV2AV, 0, scalar(o));
}
o->op_ppaddr = PL_ppaddr[OP_PADHV];
return o;
}
- else if ((o->op_type == OP_RV2HV || o->op_type == OP_PADHV)
- && ckWARN(WARN_DEPRECATED)) {
- Perl_warner(aTHX_ packWARN(WARN_DEPRECATED),
- "Using a hash as a reference is deprecated");
+ else if ((o->op_type == OP_RV2HV || o->op_type == OP_PADHV)) {
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED),
+ "Using a hash as a reference is deprecated");
}
return newUNOP(OP_RV2HV, 0, scalar(o));
}
(left->op_flags & OPf_PARENS) == 0) ||
(OP_IS_NUMCOMPARE(right->op_type) &&
(right->op_flags & OPf_PARENS) == 0))
- if (ckWARN(WARN_PRECEDENCE))
- Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE),
- "Possible precedence problem on bitwise %c operator",
- o->op_type == OP_BIT_OR ? '|'
- : o->op_type == OP_BIT_AND ? '&' : '^'
- );
+ Perl_ck_warner(aTHX_ packWARN(WARN_PRECEDENCE),
+ "Possible precedence problem on bitwise %c operator",
+ o->op_type == OP_BIT_OR ? '|'
+ : o->op_type == OP_BIT_AND ? '&' : '^'
+ );
}
return o;
}
/* establish postfix order */
enter->op_next = (OP*)enter;
- CHECKOP(OP_ENTERTRY, enter);
-
o = prepend_elem(OP_LINESEQ, (OP*)enter, (OP*)kid);
o->op_type = OP_LEAVETRY;
o->op_ppaddr = PL_ppaddr[OP_LEAVETRY];
break;
case OA_AVREF:
if ((type == OP_PUSH || type == OP_UNSHIFT)
- && !kid->op_sibling && ckWARN(WARN_SYNTAX))
- Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
- "Useless use of %s with no values",
- PL_op_desc[type]);
+ && !kid->op_sibling)
+ Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX),
+ "Useless use of %s with no values",
+ PL_op_desc[type]);
if (kid->op_type == OP_CONST &&
(kid->op_private & OPpCONST_BARE))
{
OP * const newop = newAVREF(newGVOP(OP_GV, 0,
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()",
- SVfARG(((SVOP*)kid)->op_sv), (IV)numargs, PL_op_desc[type]);
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED),
+ "Array @%"SVf" missing the @ in argument %"IVdf" of %s()",
+ SVfARG(((SVOP*)kid)->op_sv), (IV)numargs, PL_op_desc[type]);
#ifdef PERL_MAD
op_getmad(kid,newop,'K');
#else
{
OP * const newop = newHVREF(newGVOP(OP_GV, 0,
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()",
- SVfARG(((SVOP*)kid)->op_sv), (IV)numargs, PL_op_desc[type]);
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED),
+ "Hash %%%"SVf" missing the %% in argument %"IVdf" of %s()",
+ SVfARG(((SVOP*)kid)->op_sv), (IV)numargs, PL_op_desc[type]);
#ifdef PERL_MAD
op_getmad(kid,newop,'K');
#else
if (o->op_flags & OPf_STACKED) {
OP* k;
o = ck_sort(o);
- kid = cLISTOPo->op_first->op_sibling;
- if (!cUNOPx(kid)->op_next)
- Perl_croak(aTHX_ "panic: ck_grep");
- for (k = cUNOPx(kid)->op_first; k; k = k->op_next) {
+ kid = cUNOPx(cLISTOPo->op_first->op_sibling)->op_first;
+ if (kid->op_type != OP_SCOPE && kid->op_type != OP_LEAVE)
+ return no_fh_allowed(o);
+ for (k = kid; k; k = k->op_next) {
kid = k;
}
NewOp(1101, gwop, 1, LOGOP);
gwop->op_flags |= OPf_KIDS;
gwop->op_other = LINKLIST(kid);
kid->op_next = (OP*)gwop;
- offset = pad_findmy("$_");
+ offset = Perl_pad_findmy(aTHX_ STR_WITH_LEN("$_"), 0);
if (offset == NOT_IN_PAD || PAD_COMPNAME_FLAGS_isOUR(offset)) {
o->op_private = gwop->op_private = 0;
gwop->op_targ = pad_alloc(type, SVs_PADTMP);
{
PERL_ARGS_ASSERT_CK_DEFINED;
- if ((o->op_flags & OPf_KIDS) && ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) {
+ if ((o->op_flags & OPf_KIDS)) {
switch (cUNOPo->op_first->op_type) {
case OP_RV2AV:
/* This is needed for
break; /* Globals via GV can be undef */
case OP_PADAV:
case OP_AASSIGN: /* Is this a good idea? */
- Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX),
- "defined(@array) is deprecated");
- Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX),
- "\t(Maybe you should just omit the defined()?)\n");
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED),
+ "defined(@array) is deprecated");
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED),
+ "\t(Maybe you should just omit the defined()?)\n");
break;
case OP_RV2HV:
- /* This is needed for
- if (defined %stash::)
- to work. Do not break Tk.
- */
- break; /* Globals via GV can be undef */
case OP_PADHV:
- Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX),
- "defined(%%hash) is deprecated");
- Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX),
- "\t(Maybe you should just omit the defined()?)\n");
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED),
+ "defined(%%hash) is deprecated");
+ Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED),
+ "\t(Maybe you should just omit the defined()?)\n");
break;
default:
/* no warning */
PERL_ARGS_ASSERT_CK_MATCH;
if (o->op_type != OP_QR && PL_compcv) {
- const PADOFFSET offset = pad_findmy("$_");
+ const PADOFFSET offset = Perl_pad_findmy(aTHX_ STR_WITH_LEN("$_"), 0);
if (offset != NOT_IN_PAD && !(PAD_COMPNAME_FLAGS_isOUR(offset))) {
o->op_targ = offset;
o->op_private |= OPpTARGET_MY;
return newop;
}
- return ck_fun(o);
+ return scalar(ck_fun(o));
}
OP *
kid->op_type = OP_PUSHRE;
kid->op_ppaddr = PL_ppaddr[OP_PUSHRE];
scalar(kid);
- if (((PMOP *)kid)->op_pmflags & PMf_GLOBAL && ckWARN(WARN_REGEXP)) {
- Perl_warner(aTHX_ packWARN(WARN_REGEXP),
- "Use of /g modifier is meaningless in split");
+ if (((PMOP *)kid)->op_pmflags & PMf_GLOBAL) {
+ Perl_ck_warner(aTHX_ packWARN(WARN_REGEXP),
+ "Use of /g modifier is meaningless in split");
}
if (!kid->op_sibling)
o->op_private |= OPpENTERSUB_HASTARG;
for (cvop = o2; cvop->op_sibling; cvop = cvop->op_sibling) ;
if (cvop->op_type == OP_RV2CV) {
- SVOP* tmpop;
o->op_private |= (cvop->op_private & OPpENTERSUB_AMPER);
op_null(cvop); /* disable rv2cv */
- tmpop = (SVOP*)((UNOP*)cvop)->op_first;
- if (tmpop->op_type == OP_GV && !(o->op_private & OPpENTERSUB_AMPER)) {
- GV *gv = cGVOPx_gv(tmpop);
- cv = GvCVu(gv);
- if (!cv)
- tmpop->op_private |= OPpEARLY_CV;
- else {
- if (SvPOK(cv)) {
- STRLEN len;
- namegv = CvANON(cv) ? gv : CvGV(cv);
- proto = SvPV(MUTABLE_SV(cv), len);
- proto_end = proto + len;
- }
+ if (!(o->op_private & OPpENTERSUB_AMPER)) {
+ SVOP *tmpop = (SVOP*)((UNOP*)cvop)->op_first;
+ GV *gv = NULL;
+ switch (tmpop->op_type) {
+ case OP_GV: {
+ gv = cGVOPx_gv(tmpop);
+ cv = GvCVu(gv);
+ if (!cv)
+ tmpop->op_private |= OPpEARLY_CV;
+ } break;
+ case OP_CONST: {
+ SV *sv = cSVOPx_sv(tmpop);
+ if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV)
+ cv = (CV*)SvRV(sv);
+ } break;
+ }
+ if (cv && SvPOK(cv)) {
+ STRLEN len;
+ namegv = gv && CvANON(cv) ? gv : CvGV(cv);
+ proto = SvPV(MUTABLE_SV(cv), len);
+ proto_end = proto + len;
}
}
}
return ck_fun(o);
}
+/* caller is supposed to assign the return to the
+ container of the rep_op var */
+STATIC OP *
+S_opt_scalarhv(pTHX_ OP *rep_op) {
+ dVAR;
+ UNOP *unop;
+
+ PERL_ARGS_ASSERT_OPT_SCALARHV;
+
+ NewOp(1101, unop, 1, UNOP);
+ unop->op_type = (OPCODE)OP_BOOLKEYS;
+ unop->op_ppaddr = PL_ppaddr[OP_BOOLKEYS];
+ unop->op_flags = (U8)(OPf_WANT_SCALAR | OPf_KIDS );
+ unop->op_private = (U8)(1 | ((OPf_WANT_SCALAR | OPf_KIDS) >> 8));
+ unop->op_first = rep_op;
+ unop->op_next = rep_op->op_next;
+ rep_op->op_next = (OP*)unop;
+ rep_op->op_flags|=(OPf_REF | OPf_MOD);
+ unop->op_sibling = rep_op->op_sibling;
+ rep_op->op_sibling = NULL;
+ /* unop->op_targ = pad_alloc(OP_BOOLKEYS, SVs_PADTMP); */
+ if (rep_op->op_type == OP_PADHV) {
+ rep_op->op_flags &= ~OPf_WANT_SCALAR;
+ rep_op->op_flags |= OPf_WANT_LIST;
+ }
+ return (OP*)unop;
+}
+
+/* Checks if o acts as an in-place operator on an array. oright points to the
+ * beginning of the right-hand side. Returns the left-hand side of the
+ * assignment if o acts in-place, or NULL otherwise. */
+
+STATIC OP *
+S_is_inplace_av(pTHX_ OP *o, OP *oright) {
+ OP *o2;
+ OP *oleft = NULL;
+
+ PERL_ARGS_ASSERT_IS_INPLACE_AV;
+
+ if (!oright ||
+ (oright->op_type != OP_RV2AV && oright->op_type != OP_PADAV)
+ || oright->op_next != o
+ || (oright->op_private & OPpLVAL_INTRO)
+ )
+ return NULL;
+
+ /* o2 follows the chain of op_nexts through the LHS of the
+ * assign (if any) to the aassign op itself */
+ o2 = o->op_next;
+ if (!o2 || o2->op_type != OP_NULL)
+ return NULL;
+ o2 = o2->op_next;
+ if (!o2 || o2->op_type != OP_PUSHMARK)
+ return NULL;
+ o2 = o2->op_next;
+ if (o2 && o2->op_type == OP_GV)
+ o2 = o2->op_next;
+ if (!o2
+ || (o2->op_type != OP_PADAV && o2->op_type != OP_RV2AV)
+ || (o2->op_private & OPpLVAL_INTRO)
+ )
+ return NULL;
+ oleft = o2;
+ o2 = o2->op_next;
+ if (!o2 || o2->op_type != OP_NULL)
+ return NULL;
+ o2 = o2->op_next;
+ if (!o2 || o2->op_type != OP_AASSIGN
+ || (o2->op_flags & OPf_WANT) != OPf_WANT_VOID)
+ return NULL;
+
+ /* check that the sort is the first arg on RHS of assign */
+
+ o2 = cUNOPx(o2)->op_first;
+ if (!o2 || o2->op_type != OP_NULL)
+ return NULL;
+ o2 = cUNOPx(o2)->op_first;
+ if (!o2 || o2->op_type != OP_PUSHMARK)
+ return NULL;
+ if (o2->op_sibling != o)
+ return NULL;
+
+ /* check the array is the same on both sides */
+ if (oleft->op_type == OP_RV2AV) {
+ if (oright->op_type != OP_RV2AV
+ || !cUNOPx(oright)->op_first
+ || cUNOPx(oright)->op_first->op_type != OP_GV
+ || cGVOPx_gv(cUNOPx(oleft)->op_first) !=
+ cGVOPx_gv(cUNOPx(oright)->op_first)
+ )
+ return NULL;
+ }
+ else if (oright->op_type != OP_PADAV
+ || oright->op_targ != oleft->op_targ
+ )
+ return NULL;
+
+ return oleft;
+}
+
/* A peephole optimizer. We visit the ops in the order they're to execute.
* See the comments at the top of this file for more details about when
* peep() is called */
}
break;
+
+ {
+ OP *fop;
+ OP *sop;
+
+ case OP_NOT:
+ fop = cUNOP->op_first;
+ sop = NULL;
+ goto stitch_keys;
+ break;
- case OP_MAPWHILE:
- case OP_GREPWHILE:
- case OP_AND:
+ case OP_AND:
case OP_OR:
case OP_DOR:
+ fop = cLOGOP->op_first;
+ sop = fop->op_sibling;
+ while (cLOGOP->op_other->op_type == OP_NULL)
+ cLOGOP->op_other = cLOGOP->op_other->op_next;
+ peep(cLOGOP->op_other); /* Recursive calls are not replaced by fptr calls */
+
+ stitch_keys:
+ o->op_opt = 1;
+ if ((fop->op_type == OP_PADHV || fop->op_type == OP_RV2HV)
+ || ( sop &&
+ (sop->op_type == OP_PADHV || sop->op_type == OP_RV2HV)
+ )
+ ){
+ OP * nop = o;
+ OP * lop = o;
+ if (!((nop->op_flags & OPf_WANT) == OPf_WANT_VOID)) {
+ while (nop && nop->op_next) {
+ switch (nop->op_next->op_type) {
+ case OP_NOT:
+ case OP_AND:
+ case OP_OR:
+ case OP_DOR:
+ lop = nop = nop->op_next;
+ break;
+ case OP_NULL:
+ nop = nop->op_next;
+ break;
+ default:
+ nop = NULL;
+ break;
+ }
+ }
+ }
+ if ((lop->op_flags & OPf_WANT) == OPf_WANT_VOID) {
+ if (fop->op_type == OP_PADHV || fop->op_type == OP_RV2HV)
+ cLOGOP->op_first = opt_scalarhv(fop);
+ if (sop && (sop->op_type == OP_PADHV || sop->op_type == OP_RV2HV))
+ cLOGOP->op_first->op_sibling = opt_scalarhv(sop);
+ }
+ }
+
+
+ break;
+ }
+
+ case OP_MAPWHILE:
+ case OP_GREPWHILE:
case OP_ANDASSIGN:
case OP_ORASSIGN:
case OP_DORASSIGN:
oright = cUNOPx(oright)->op_sibling;
}
- if (!oright ||
- (oright->op_type != OP_RV2AV && oright->op_type != OP_PADAV)
- || oright->op_next != o
- || (oright->op_private & OPpLVAL_INTRO)
- )
- break;
-
- /* o2 follows the chain of op_nexts through the LHS of the
- * assign (if any) to the aassign op itself */
- o2 = o->op_next;
- if (!o2 || o2->op_type != OP_NULL)
- break;
- o2 = o2->op_next;
- if (!o2 || o2->op_type != OP_PUSHMARK)
- break;
- o2 = o2->op_next;
- if (o2 && o2->op_type == OP_GV)
- o2 = o2->op_next;
- if (!o2
- || (o2->op_type != OP_PADAV && o2->op_type != OP_RV2AV)
- || (o2->op_private & OPpLVAL_INTRO)
- )
- break;
- oleft = o2;
- o2 = o2->op_next;
- if (!o2 || o2->op_type != OP_NULL)
- break;
- o2 = o2->op_next;
- if (!o2 || o2->op_type != OP_AASSIGN
- || (o2->op_flags & OPf_WANT) != OPf_WANT_VOID)
- break;
-
- /* check that the sort is the first arg on RHS of assign */
-
- o2 = cUNOPx(o2)->op_first;
- if (!o2 || o2->op_type != OP_NULL)
- break;
- o2 = cUNOPx(o2)->op_first;
- if (!o2 || o2->op_type != OP_PUSHMARK)
- break;
- if (o2->op_sibling != o)
- break;
-
- /* check the array is the same on both sides */
- if (oleft->op_type == OP_RV2AV) {
- if (oright->op_type != OP_RV2AV
- || !cUNOPx(oright)->op_first
- || cUNOPx(oright)->op_first->op_type != OP_GV
- || cGVOPx_gv(cUNOPx(oleft)->op_first) !=
- cGVOPx_gv(cUNOPx(oright)->op_first)
- )
- break;
- }
- else if (oright->op_type != OP_PADAV
- || oright->op_targ != oleft->op_targ
- )
+ oleft = is_inplace_av(o, oright);
+ if (!oleft)
break;
/* transfer MODishness etc from LHS arg to RHS arg */
case OP_REVERSE: {
OP *ourmark, *theirmark, *ourlast, *iter, *expushmark, *rv2av;
OP *gvop = NULL;
+ OP *oleft, *oright;
LISTOP *enter, *exlist;
+ /* @a = reverse @a */
+ if ((oright = cLISTOPo->op_first)
+ && (oright->op_type == OP_PUSHMARK)
+ && (oright = oright->op_sibling)
+ && (oleft = is_inplace_av(o, oright))) {
+ OP *o2;
+
+ /* transfer MODishness etc from LHS arg to RHS arg */
+ oright->op_flags = oleft->op_flags;
+ o->op_private |= OPpREVERSE_INPLACE;
+
+ /* excise push->gv->rv2av->null->aassign */
+ o2 = o->op_next->op_next;
+ op_null(o2); /* PUSHMARK */
+ o2 = o2->op_next;
+ if (o2->op_type == OP_GV) {
+ op_null(o2); /* GV */
+ o2 = o2->op_next;
+ }
+ op_null(o2); /* RV2AV or PADAV */
+ o2 = o2->op_next->op_next;
+ op_null(o2); /* AASSIGN */
+
+ o->op_next = o2->op_next;
+ break;
+ }
+
enter = (LISTOP *) o->op_next;
if (!enter)
break;