/* 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.
PADOFFSET
Perl_allocmy(pTHX_ char *name)
{
+ dVAR;
PADOFFSET off;
+ const bool is_our = (PL_in_my == KEY_our);
/* complain about "my $<special_var>" etc etc */
- if (!(PL_in_my == KEY_our ||
+ if (*name &&
+ !(is_our ||
isALPHA(name[1]) ||
(USE_UTF8_IN_NAMES && UTF8_IS_START(name[1])) ||
- (name[1] == '_' && (*name == '$' || (int)strlen(name) > 2))))
+ (name[1] == '_' && (*name == '$' || name[2]))))
{
+ /* name[2] is true if strlen(name) > 2 */
if (!isPRINT(name[1]) || strchr("\t\n\r\f", name[1])) {
/* 1999-02-27 mjd@plover.com */
char *p;
}
/* check for duplicate declaration */
- pad_check_dup(name,
- (bool)(PL_in_my == KEY_our),
- (PL_curstash ? PL_curstash : PL_defstash)
- );
+ pad_check_dup(name, is_our, (PL_curstash ? PL_curstash : PL_defstash));
if (PL_in_my_stash && *name != '$') {
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 */
);
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;
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
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);
{
dVAR;
OP *kid;
- const char* useless = 0;
+ const char* useless = NULL;
SV* sv;
U8 want;
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;
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;
OP *
Perl_scalarseq(pTHX_ OP *o)
{
+ dVAR;
if (o) {
if (o->op_type == OP_LINESEQ ||
o->op_type == OP_SCOPE ||
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
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 */
newop->op_next = (OP*)newop;
kid->op_sibling = (OP*)newop;
newop->op_private |= OPpLVAL_INTRO;
+ newop->op_private &= ~1;
break;
}
okid->op_targ = 0;
okid->op_ppaddr = PL_ppaddr[OP_RV2CV];
okid->op_private |= OPpLVAL_INTRO;
+ okid->op_private &= ~1;
break;
}
/* FALL THROUGH */
default:
nomod:
- /* grep, foreach, subcalls, refgen */
- if (type == OP_GREPSTART || type == OP_ENTERSUB || type == OP_REFGEN)
+ /* grep, foreach, subcalls, refgen, m//g */
+ if (type == OP_GREPSTART || type == OP_ENTERSUB || type == OP_REFGEN
+ || type == OP_MATCH)
break;
yyerror(Perl_form(aTHX_ "Can't modify %s in %s",
(o->op_type == OP_NULL && (o->op_flags & OPf_SPECIAL)
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;
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
rop = newSVOP(OP_CONST, o->op_flags, SvREFCNT_inc(cSVOPo->op_sv));
else {
assert((o->op_type == OP_LIST) && (o->op_flags & OPf_KIDS));
+ rop = Nullop;
for (o = cLISTOPo->op_first; o; o=o->op_sibling) {
if (o->op_type == OP_CONST)
rop = append_elem(OP_LIST, rop,
if (for_my) {
/* Don't force the C<use> 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 */
else
STATIC void
S_apply_attrs_my(pTHX_ HV *stash, OP *target, OP *attrs, OP **imopsp)
{
+ dVAR;
OP *pack, *imop, *arg;
SV *meth, *stashsv;
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)),
STATIC OP *
S_my_kid(pTHX_ OP *o, OP *attrs, OP **imopsp)
{
+ dVAR;
I32 type;
if (!o || PL_error_count)
} 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) :
HV *stash;
PL_in_my = FALSE;
- PL_in_my_stash = Nullhv;
+ PL_in_my_stash = NULL;
/* check for C<my Dog $spot> when deciding package */
stash = PAD_COMPNAME_TYPE(o->op_targ);
OP *
Perl_my_attrs(pTHX_ OP *o, OP *attrs)
{
- OP *rops = Nullop;
+ dVAR;
+ OP *rops;
int maybe_scalar = 0;
/* [perl #17376]: this appears to be premature, and results in code such as
#endif
if (attrs)
SAVEFREEOP(attrs);
+ rops = Nullop;
o = my_kid(o, attrs, &rops);
if (rops) {
if (maybe_scalar && o->op_type == OP_PADSV) {
o = append_list(OP_LIST, (LISTOP*)o, (LISTOP*)rops);
}
PL_in_my = FALSE;
- PL_in_my_stash = Nullhv;
+ PL_in_my_stash = NULL;
return o;
}
}
if (!(right->op_flags & OPf_STACKED) && ismatchop) {
right->op_flags |= OPf_STACKED;
- if (right->op_type != OP_MATCH &&
- ! (right->op_type == OP_TRANS &&
- right->op_private & OPpTRANS_IDENTICAL))
+ /* s/// and tr/// modify their arg.
+ * m//g also indirectly modifies the arg by setting pos magic on it */
+ if ( (right->op_type == OP_MATCH &&
+ (cPMOPx(right)->op_pmflags & PMf_GLOBAL))
+ || (right->op_type == OP_SUBST)
+ || (right->op_type == OP_TRANS &&
+ ! (right->op_private & OPpTRANS_IDENTICAL))
+ )
left = mod(left, right->op_type);
if (right->op_type == OP_TRANS)
o = newBINOP(OP_NULL, OPf_STACKED, scalar(left), right);
return o;
}
-/* XXX kept for BINCOMPAT only */
-void
-Perl_save_hints(pTHX)
-{
- Perl_croak(aTHX_ "internal error: obsolete function save_hints() called");
-}
-
int
Perl_block_start(pTHX_ int full)
{
+ dVAR;
const int retval = PL_savestack_ix;
pad_block_start(full);
SAVEHINTS();
OP*
Perl_block_end(pTHX_ I32 floor, OP *seq)
{
+ dVAR;
const int needblockscope = PL_hints & HINT_BLOCK_SCOPE;
OP* const retval = scalarseq(seq);
LEAVE_SCOPE(floor);
STATIC OP *
S_newDEFSVOP(pTHX)
{
+ dVAR;
const I32 offset = pad_findmy("$_");
if (offset == NOT_IN_PAD || PAD_COMPNAME_FLAGS(offset) & SVpad_OUR) {
return newSVREF(newGVOP(OP_GV, 0, PL_defgv));
void
Perl_newPROG(pTHX_ OP *o)
{
+ dVAR;
if (PL_in_eval) {
if (PL_eval_root)
return;
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 */
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;
}
{
if (o->op_type == OP_LIST) {
OP *o2;
- o2 = newSVREF(newGVOP(OP_GV, 0, gv_fetchpv(";", TRUE, SVt_PV))),
+ o2 = newSVREF(newGVOP(OP_GV, 0, gv_fetchpv(";", GV_ADD, SVt_PV))),
o = convert(OP_JOIN, 0, prepend_elem(OP_LIST, o2, o));
}
return 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:
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;
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;
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;
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;
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) {
void
Perl_package(pTHX_ OP *o)
{
+ dVAR;
const char *name;
STRLEN len;
void
Perl_utilize(pTHX_ int aver, I32 floor, OP *version, OP *idop, OP *arg)
{
+ dVAR;
OP *pack;
OP *imop;
OP *veop;
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)),
/* 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)),
/* Fake up the BEGIN {}, which does its thing immediately. */
newATTRSUB(floor,
- newSVOP(OP_CONST, 0, newSVpvn_share("BEGIN", 5, 0)),
+ newSVOP(OP_CONST, 0, newSVpvs_share("BEGIN")),
Nullop,
Nullop,
append_elem(OP_LINESEQ,
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);
OP *
Perl_dofile(pTHX_ OP *term, I32 force_builtin)
{
+ dVAR;
OP *doop;
GV *gv = Nullgv;
if (!force_builtin) {
- gv = gv_fetchpv("do", FALSE, SVt_PVCV);
+ gv = gv_fetchpv("do", 0, SVt_PVCV);
if (!(gv && GvCVu(gv) && GvIMPORTED_CV(gv))) {
- GV * const * const gvp = (GV**)hv_fetch(PL_globalstash, "do", 2, FALSE);
+ GV * const * const gvp = (GV**)hv_fetchs(PL_globalstash, "do", FALSE);
gv = gvp ? *gvp : Nullgv;
}
}
OP *
Perl_newASSIGNOP(pTHX_ I32 flags, OP *left, I32 optype, OP *right)
{
+ dVAR;
OP *o;
if (optype) {
/* Result of assignment is always 1 (or we'd be dead already) */
return newSVOP(OP_CONST, 0, newSViv(1));
}
- /* optimise C<my @x = ()> to C<my @x>, 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));
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));
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 &&
{
dVAR;
OP *redo;
- OP *next = 0;
+ OP *next = NULL;
OP *listop;
OP *o;
U8 loopflags = 0;
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 $x () */
}
else
Perl_croak(aTHX_ "Can't use %s for loop variable", PL_op_desc[sv->op_type]);
+ if (padoff && strEQ(PAD_COMPNAME_PV(padoff), "$_"))
+ iterpflags |= OPpITER_DEF;
}
else {
const I32 offset = pad_findmy("$_");
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);
OP*
Perl_newLOOPEX(pTHX_ I32 type, OP *label)
{
+ dVAR;
OP *o;
if (type != OP_GOTO || label->op_type == OP_CONST) {
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
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);
}
}
SV *
Perl_cv_const_sv(pTHX_ CV *cv)
{
- if (!cv || !CvCONST(cv))
- return Nullsv;
- return (SV*)CvXSUBANY(cv).any_ptr;
+ 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.
SV *
Perl_op_const_sv(pTHX_ const OP *o, CV *cv)
{
+ dVAR;
SV *sv = Nullsv;
if (!o)
GV *gv;
const char *ps;
STRLEN ps_len;
- register CV *cv=0;
+ register CV *cv = NULL;
SV *const_sv;
- I32 gv_fetch_flags;
-
+ /* 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))
+ ? GV_ADDMULTI : GV_ADDMULTI | GV_NOINIT;
const char * const name = o ? SvPVx_nolen_const(cSVOPo->op_sv) : Nullch;
if (proto) {
else
aname = Nullch;
- 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__"),
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 (ckWARN(WARN_REDEFINE)
|| (CvCONST(cv)
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 *sv = NEWSV(0,0);
- SV *tmpstr = sv_newmortal();
- GV *db_postponed = gv_fetchpv("DB::postponed", GV_ADDMULTI, SVt_PVHV);
+ SV * const sv = NEWSV(0,0);
+ SV * const tmpstr = sv_newmortal();
+ GV * const db_postponed = gv_fetchpv("DB::postponed", GV_ADDMULTI, SVt_PVHV);
HV *hv;
Perl_sv_setpvf(aTHX_ sv, "%s:%ld-%ld",
CvCONST_on(cv);
sv_setpvn((SV*)cv, "", 0); /* prototype is "" */
+#ifdef USE_ITHREADS
if (stash)
CopSTASH_free(PL_curcop);
-
+#endif
LEAVE;
return cv;
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);
void
Perl_newFORM(pTHX_ I32 floor, OP *o, OP *block)
{
+ dVAR;
register CV *cv;
- GV *gv;
- if (o)
- gv = gv_fetchsv(cSVOPo->op_sv, TRUE, SVt_PVFM);
- else
- gv = gv_fetchpv("STDOUT", TRUE, SVt_PVFM);
-
+ GV * const gv = o
+ ? gv_fetchsv(cSVOPo->op_sv, GV_ADD, SVt_PVFM)
+ : gv_fetchpv("STDOUT", GV_ADD, SVt_PVFM);
+
#ifdef GV_UNIQUE_CHECK
if (GvUNIQUE(gv)) {
Perl_croak(aTHX_ "Bad symbol for form (GV is unique)");
}
OP *
-Perl_oopsCV(pTHX_ OP *o)
-{
- Perl_croak(aTHX_ "NOT IMPL LINE %d",__LINE__);
- /* STUB */
- PERL_UNUSED_ARG(o);
- NORETURN_FUNCTION_END;
-}
-
-OP *
Perl_newCVREF(pTHX_ I32 flags, OP *o)
{
return newUNOP(OP_RV2CV, flags, scalar(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 || \
OP *
Perl_ck_concat(pTHX_ OP *o)
{
- const OP *kid = cUNOPo->op_first;
+ const OP * const kid = cUNOPo->op_first;
if (kid->op_type == OP_CONCAT && !(kid->op_private & OPpTARGET_MY) &&
!(kUNOP->op_first->op_flags & OPf_MOD))
o->op_flags |= OPf_STACKED;
OP *
Perl_ck_eof(pTHX_ OP *o)
{
+ dVAR;
const I32 type = o->op_type;
if (o->op_flags & OPf_KIDS) {
o = newUNOP(OP_ENTEREVAL, 0, newDEFSVOP());
}
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;
}
#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;
}
OP *
Perl_ck_exists(pTHX_ OP *o)
{
+ dVAR;
o = ck_fun(o);
if (o->op_flags & OPf_KIDS) {
OP * const kid = cUNOPo->op_first;
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;
/* 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;
Perl_croak(aTHX_ "Constant is not %s reference", badtype);
return o;
}
- if ((PL_hints & HINT_STRICT_REFS) && (kid->op_private & OPpCONST_BARE)) {
+ 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 = Nullch;
switch (o->op_type) {
case OP_RV2SV:
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));
op_free(o);
o = newop;
return o;
OP *
Perl_ck_fun(pTHX_ OP *o)
{
+ dVAR;
const int type = o->op_type;
register I32 oa = PL_opargs[type] >> OASHIFT;
(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()",
(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()",
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;
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);
}
|| kid->op_type == OP_HELEM)
{
OP *op = ((BINOP*)kid)->op_first;
- name = 0;
+ name = NULL;
if (op) {
SV *tmpstr = Nullsv;
const char * const a =
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_fetchpv("glob", 0, SVt_PVCV))
&& GvCVu(gv) && GvIMPORTED_CV(gv)))
{
- gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV);
+ gv = gv_fetchpv("CORE::GLOBAL::glob", 0, SVt_PVCV);
}
#if !defined(PERL_EXTERNAL_GLOB)
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"), Nullsv, Nullsv, Nullsv);
+ gv = gv_fetchpv("CORE::GLOBAL::glob", 0, SVt_PVCV);
+ glob_gv = gv_fetchpv("File::Glob::csh_glob", 0, SVt_PVCV);
GvCV(gv) = GvCV(glob_gv);
(void)SvREFCNT_inc((SV*)GvCV(gv));
GvIMPORTED_CV_on(gv);
}
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 = Nullop;
+ 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;
return kid;
}
}
- /* optimise C<my $x = undef> to C<my $x> */
- if (kid->op_type == OP_UNDEF) {
- OP * const kkid = kid->op_sibling;
- if (kkid && kkid->op_type == OP_PADSV
- && (kkid->op_private & OPpLVAL_INTRO))
- {
- cLISTOPo->op_first = NULL;
- kid->op_sibling = NULL;
- op_free(o);
- op_free(kid);
- return kkid;
- }
- }
return o;
}
OP *
Perl_ck_match(pTHX_ OP *o)
{
- if (o->op_type != OP_QR) {
+ dVAR;
+ if (o->op_type != OP_QR && PL_compcv) {
const I32 offset = pad_findmy("$_");
if (offset != NOT_IN_PAD && !(PAD_COMPNAME_FLAGS(offset) & SVpad_OUR)) {
o->op_targ = offset;
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;
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)
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)
OP *
Perl_ck_require(pTHX_ OP *o)
{
+ dVAR;
GV* gv = Nullgv;
if (o->op_flags & OPf_KIDS) { /* Shall we supply missing .pm? */
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_fetchpv("require", 0, SVt_PVCV);
if (!(gv && GvCVu(gv) && GvIMPORTED_CV(gv))) {
- GV * const * const gvp = (GV**)hv_fetch(PL_globalstash, "require", 7, FALSE);
+ GV * const * const gvp = (GV**)hv_fetchs(PL_globalstash, "require", FALSE);
gv = gvp ? *gvp : Nullgv;
}
}
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)
return o;
}
-#if 0
-OP *
-Perl_ck_retarget(pTHX_ OP *o)
-{
- Perl_croak(aTHX_ "NOT IMPL LINE %d",__LINE__);
- /* STUB */
- return o;
-}
-#endif
-
OP *
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 *
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 */
STATIC void
S_simplify_sort(pTHX_ OP *o)
{
+ dVAR;
register OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */
OP *k;
int descending;
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_fetchpv("a", GV_ADD, SVt_PV));
+ GvMULTI_on(gv_fetchpv("b", GV_ADD, SVt_PV));
kid = kUNOP->op_first; /* get past null */
if (kid->op_type != OP_SCOPE)
return;
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 */
}
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;
{
GV * const gv = cGVOPx_gv(gvop);
OP * const sibling = o2->op_sibling;
- SV * const n = newSVpvn("",0);
+ SV * const n = newSVpvs("");
op_free(o2);
gv_fullname4(n, gv, "", FALSE);
o2 = newSVOP(OP_CONST, 0, n);
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;
Perl_peep(pTHX_ register OP *o)
{
dVAR;
- register OP* oldop = 0;
+ register OP* oldop = NULL;
if (!o || o->op_opt)
return;
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);
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 &&
lexname = *av_fetch(PL_comppad_name, rop->op_first->op_targ, TRUE);
if (!(SvFLAGS(lexname) & SVpad_TYPED))
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);
lexname = *av_fetch(PL_comppad_name, rop->op_targ, TRUE);
if (!(SvFLAGS(lexname) & SVpad_TYPED))
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.... */
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;
char*
Perl_custom_op_name(pTHX_ const OP* o)
{
+ dVAR;
const IV index = PTR2IV(o->op_ppaddr);
SV* keysv;
HE* he;
char*
Perl_custom_op_desc(pTHX_ const OP* o)
{
+ dVAR;
const IV index = PTR2IV(o->op_ppaddr);
SV* keysv;
HE* he;
static void
const_sv_xsub(pTHX_ CV* cv)
{
+ dVAR;
dXSARGS;
if (items != 0) {
#if 0
projects / p5sagit/p5-mst-13.2.git / blobdiff