/* op.c
*
- * Copyright (c) 1991-1994, Larry Wall
+ * Copyright (c) 1991-1997, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
#include "EXTERN.h"
#include "perl.h"
-#define USE_OP_MASK /* Turned on by default in 5.002beta1h */
-
-#ifdef USE_OP_MASK
/*
- * In the following definition, the ", (OP *) op" is just to make the compiler
+ * In the following definition, the ", Nullop" is just to make the compiler
* think the expression is of the right type: croak actually does a Siglongjmp.
*/
#define CHECKOP(type,o) \
- ((op_mask && op_mask[type]) \
- ? (croak("%s trapped by operation mask", op_desc[type]), (OP*)o) \
+ ((op_mask && op_mask[type]) \
+ ? ( op_free((OP*)o), \
+ croak("%s trapped by operation mask", op_desc[type]), \
+ Nullop ) \
: (*check[type])((OP*)o))
-#else
-#define CHECKOP(type,o) (*check[type])(o)
-#endif /* USE_OP_MASK */
static I32 list_assignment _((OP *o));
static void bad_type _((I32 n, char *t, char *name, OP *kid));
static OP *modkids _((OP *o, I32 type));
static OP *no_fh_allowed _((OP *o));
+static bool scalar_mod_type _((OP *o, I32 type));
static OP *scalarboolean _((OP *o));
static OP *too_few_arguments _((OP *o, char* name));
static OP *too_many_arguments _((OP *o, char* name));
static void null _((OP* o));
-static PADOFFSET pad_findlex _((char* name, PADOFFSET newoff, I32 seq,
+static PADOFFSET pad_findlex _((char* name, PADOFFSET newoff, U32 seq,
CV* startcv, I32 cx_ix));
+static OP *newDEFSVOP _((void));
+static OP *new_logop _((I32 type, I32 flags, OP **firstp, OP **otherp));
static char*
-CvNAME(cv)
-CV* cv;
+gv_ename(GV *gv)
{
SV* tmpsv = sv_newmortal();
- gv_efullname(tmpsv, CvGV(cv));
+ gv_efullname3(tmpsv, gv, Nullch);
return SvPV(tmpsv,na);
}
static OP *
-no_fh_allowed(o)
-OP *o;
+no_fh_allowed(OP *o)
{
- sprintf(tokenbuf,"Missing comma after first argument to %s function",
- op_desc[o->op_type]);
- yyerror(tokenbuf);
+ yyerror(form("Missing comma after first argument to %s function",
+ op_desc[o->op_type]));
return o;
}
static OP *
-too_few_arguments(o, name)
-OP* o;
-char* name;
+too_few_arguments(OP *o, char *name)
{
- sprintf(tokenbuf,"Not enough arguments for %s", name);
- yyerror(tokenbuf);
+ yyerror(form("Not enough arguments for %s", name));
return o;
}
static OP *
-too_many_arguments(o, name)
-OP *o;
-char* name;
+too_many_arguments(OP *o, char *name)
{
- sprintf(tokenbuf,"Too many arguments for %s", name);
- yyerror(tokenbuf);
+ yyerror(form("Too many arguments for %s", name));
return o;
}
static void
-bad_type(n, t, name, kid)
-I32 n;
-char *t;
-char *name;
-OP *kid;
+bad_type(I32 n, char *t, char *name, OP *kid)
{
- sprintf(tokenbuf, "Type of arg %d to %s must be %s (not %s)",
- (int) n, name, t, op_desc[kid->op_type]);
- yyerror(tokenbuf);
+ yyerror(form("Type of arg %d to %s must be %s (not %s)",
+ (int)n, name, t, op_desc[kid->op_type]));
}
void
-assertref(o)
-OP *o;
+assertref(OP *o)
{
int type = o->op_type;
if (type != OP_AELEM && type != OP_HELEM) {
- sprintf(tokenbuf, "Can't use subscript on %s", op_desc[type]);
- yyerror(tokenbuf);
- if (type == OP_RV2HV || type == OP_ENTERSUB)
- warn("(Did you mean $ or @ instead of %c?)\n",
- type == OP_RV2HV ? '%' : '&');
+ yyerror(form("Can't use subscript on %s", op_desc[type]));
+ if (type == OP_ENTERSUB || type == OP_RV2HV || type == OP_PADHV) {
+ dTHR;
+ SV *msg = sv_2mortal(
+ newSVpvf("(Did you mean $ or @ instead of %c?)\n",
+ type == OP_ENTERSUB ? '&' : '%'));
+ if (in_eval & 2)
+ warn("%_", msg);
+ else if (in_eval)
+ sv_catsv(GvSV(errgv), msg);
+ else
+ PerlIO_write(PerlIO_stderr(), SvPVX(msg), SvCUR(msg));
+ }
}
}
/* "register" allocation */
PADOFFSET
-pad_allocmy(name)
-char *name;
+pad_allocmy(char *name)
{
dTHR;
PADOFFSET off;
SV *sv;
if (!(isALPHA(name[1]) || name[1] == '_' && (int)strlen(name) > 2)) {
- if (!isprint(name[1]))
- sprintf(name+1, "^%c", name[1] ^ 64); /* XXX is tokenbuf, really */
+ if (!isPRINT(name[1])) {
+ name[3] = '\0';
+ name[2] = toCTRL(name[1]);
+ name[1] = '^';
+ }
croak("Can't use global %s in \"my\"",name);
}
+ if (dowarn && AvFILLp(comppad_name) >= 0) {
+ SV **svp = AvARRAY(comppad_name);
+ for (off = AvFILLp(comppad_name); off > comppad_name_floor; off--) {
+ if ((sv = svp[off])
+ && sv != &sv_undef
+ && SvIVX(sv) == 999999999 /* var is in open scope */
+ && strEQ(name, SvPVX(sv)))
+ {
+ warn("\"my\" variable %s masks earlier declaration in same scope", name);
+ break;
+ }
+ }
+ }
off = pad_alloc(OP_PADSV, SVs_PADMY);
sv = NEWSV(1102,0);
sv_upgrade(sv, SVt_PVNV);
sv_setpv(sv, name);
+ if (in_my_stash) {
+ if (*name != '$')
+ croak("Can't declare class for non-scalar %s in \"my\"",name);
+ SvOBJECT_on(sv);
+ (void)SvUPGRADE(sv, SVt_PVMG);
+ SvSTASH(sv) = (HV*)SvREFCNT_inc(in_my_stash);
+ sv_objcount++;
+ }
av_store(comppad_name, off, sv);
SvNVX(sv) = (double)999999999;
SvIVX(sv) = 0; /* Not yet introduced--see newSTATEOP */
}
static PADOFFSET
-#ifndef CAN_PROTOTYPE
-pad_findlex(name, newoff, seq, startcv, cx_ix)
-char *name;
-PADOFFSET newoff;
-I32 seq;
-CV* startcv;
-I32 cx_ix;
-#else
-pad_findlex(char *name, PADOFFSET newoff, I32 seq, CV* startcv, I32 cx_ix)
-#endif
+pad_findlex(char *name, PADOFFSET newoff, U32 seq, CV* startcv, I32 cx_ix)
{
dTHR;
CV *cv;
I32 off;
SV *sv;
register I32 i;
- register CONTEXT *cx;
+ register PERL_CONTEXT *cx;
int saweval;
for (cv = startcv; cv; cv = CvOUTSIDE(cv)) {
- AV* curlist = CvPADLIST(cv);
- SV** svp = av_fetch(curlist, 0, FALSE);
+ AV *curlist = CvPADLIST(cv);
+ SV **svp = av_fetch(curlist, 0, FALSE);
AV *curname;
+
if (!svp || *svp == &sv_undef)
continue;
curname = (AV*)*svp;
svp = AvARRAY(curname);
- for (off = AvFILL(curname); off > 0; off--) {
+ for (off = AvFILLp(curname); off > 0; off--) {
if ((sv = svp[off]) &&
sv != &sv_undef &&
seq <= SvIVX(sv) &&
- seq > (I32)SvNVX(sv) &&
+ seq > I_32(SvNVX(sv)) &&
strEQ(SvPVX(sv), name))
{
- I32 depth = CvDEPTH(cv) ? CvDEPTH(cv) : 1;
- AV *oldpad = (AV*)*av_fetch(curlist, depth, FALSE);
- SV *oldsv = *av_fetch(oldpad, off, TRUE);
+ I32 depth;
+ AV *oldpad;
+ SV *oldsv;
+
+ depth = CvDEPTH(cv);
+ if (!depth) {
+ if (newoff) {
+ if (SvFAKE(sv))
+ continue;
+ return 0; /* don't clone from inactive stack frame */
+ }
+ depth = 1;
+ }
+ oldpad = (AV*)*av_fetch(curlist, depth, FALSE);
+ oldsv = *av_fetch(oldpad, off, TRUE);
if (!newoff) { /* Not a mere clone operation. */
- SV *sv = NEWSV(1103,0);
+ SV *namesv = NEWSV(1103,0);
newoff = pad_alloc(OP_PADSV, SVs_PADMY);
- sv_upgrade(sv, SVt_PVNV);
- sv_setpv(sv, name);
- av_store(comppad_name, newoff, sv);
- SvNVX(sv) = (double)curcop->cop_seq;
- SvIVX(sv) = 999999999; /* A ref, intro immediately */
- SvFLAGS(sv) |= SVf_FAKE;
+ sv_upgrade(namesv, SVt_PVNV);
+ sv_setpv(namesv, name);
+ av_store(comppad_name, newoff, namesv);
+ SvNVX(namesv) = (double)curcop->cop_seq;
+ SvIVX(namesv) = 999999999; /* A ref, intro immediately */
+ SvFAKE_on(namesv); /* A ref, not a real var */
+ if (CvANON(compcv) || SvTYPE(compcv) == SVt_PVFM) {
+ /* "It's closures all the way down." */
+ CvCLONE_on(compcv);
+ if (cv == startcv) {
+ if (CvANON(compcv))
+ oldsv = Nullsv; /* no need to keep ref */
+ }
+ else {
+ CV *bcv;
+ for (bcv = startcv;
+ bcv && bcv != cv && !CvCLONE(bcv);
+ bcv = CvOUTSIDE(bcv)) {
+ if (CvANON(bcv))
+ CvCLONE_on(bcv);
+ else {
+ if (dowarn && !CvUNIQUE(cv))
+ warn(
+ "Variable \"%s\" may be unavailable",
+ name);
+ break;
+ }
+ }
+ }
+ }
+ else if (!CvUNIQUE(compcv)) {
+ if (dowarn && !SvFAKE(sv) && !CvUNIQUE(cv))
+ warn("Variable \"%s\" will not stay shared", name);
+ }
}
av_store(comppad, newoff, SvREFCNT_inc(oldsv));
- CvCLONE_on(compcv);
return newoff;
}
}
}
break;
case CXt_EVAL:
- if (cx->blk_eval.old_op_type != OP_ENTEREVAL &&
- cx->blk_eval.old_op_type != OP_ENTERTRY)
- return 0; /* require must have its own scope */
- saweval = i;
+ switch (cx->blk_eval.old_op_type) {
+ case OP_ENTEREVAL:
+ saweval = i;
+ break;
+ case OP_REQUIRE:
+ /* require must have its own scope */
+ return 0;
+ }
break;
case CXt_SUB:
if (!saweval)
}
PADOFFSET
-pad_findmy(name)
-char *name;
+pad_findmy(char *name)
{
dTHR;
I32 off;
+ I32 pendoff = 0;
SV *sv;
SV **svp = AvARRAY(comppad_name);
- I32 seq = cop_seqmax;
+ U32 seq = cop_seqmax;
#ifdef USE_THREADS
/*
#endif /* USE_THREADS */
/* The one we're looking for is probably just before comppad_name_fill. */
- for (off = AvFILL(comppad_name); off > 0; off--) {
+ for (off = AvFILLp(comppad_name); off > 0; off--) {
if ((sv = svp[off]) &&
sv != &sv_undef &&
- seq <= SvIVX(sv) &&
- seq > (I32)SvNVX(sv) &&
+ (!SvIVX(sv) ||
+ (seq <= SvIVX(sv) &&
+ seq > I_32(SvNVX(sv)))) &&
strEQ(SvPVX(sv), name))
{
- return (PADOFFSET)off;
+ if (SvIVX(sv))
+ return (PADOFFSET)off;
+ pendoff = off; /* this pending def. will override import */
}
}
/* See if it's in a nested scope */
off = pad_findlex(name, 0, seq, CvOUTSIDE(compcv), cxstack_ix);
- if (off)
+ if (off) {
+ /* If there is a pending local definition, this new alias must die */
+ if (pendoff)
+ SvIVX(AvARRAY(comppad_name)[off]) = seq;
return off; /* pad_findlex returns 0 for failure...*/
-
+ }
return NOT_IN_PAD; /* ...but we return NOT_IN_PAD for failure */
}
void
-pad_leavemy(fill)
-I32 fill;
+pad_leavemy(I32 fill)
{
I32 off;
SV **svp = AvARRAY(comppad_name);
}
}
/* "Deintroduce" my variables that are leaving with this scope. */
- for (off = AvFILL(comppad_name); off > fill; off--) {
+ for (off = AvFILLp(comppad_name); off > fill; off--) {
if ((sv = svp[off]) && sv != &sv_undef && SvIVX(sv) == 999999999)
SvIVX(sv) = cop_seqmax;
}
}
PADOFFSET
-pad_alloc(optype,tmptype)
-I32 optype;
-U32 tmptype;
+pad_alloc(I32 optype, U32 tmptype)
{
dTHR;
SV *sv;
pad_reset();
if (tmptype & SVs_PADMY) {
do {
- sv = *av_fetch(comppad, AvFILL(comppad) + 1, TRUE);
+ sv = *av_fetch(comppad, AvFILLp(comppad) + 1, TRUE);
} while (SvPADBUSY(sv)); /* need a fresh one */
- retval = AvFILL(comppad);
+ retval = AvFILLp(comppad);
}
else {
- do {
- sv = *av_fetch(comppad, ++padix, TRUE);
- } while (SvFLAGS(sv) & (SVs_PADTMP|SVs_PADMY));
+ SV **names = AvARRAY(comppad_name);
+ SSize_t names_fill = AvFILLp(comppad_name);
+ for (;;) {
+ /*
+ * "foreach" index vars temporarily become aliases to non-"my"
+ * values. Thus we must skip, not just pad values that are
+ * marked as current pad values, but also those with names.
+ */
+ if (++padix <= names_fill &&
+ (sv = names[padix]) && sv != &sv_undef)
+ continue;
+ sv = *av_fetch(comppad, padix, TRUE);
+ if (!(SvFLAGS(sv) & (SVs_PADTMP|SVs_PADMY)))
+ break;
+ }
retval = padix;
}
SvFLAGS(sv) |= tmptype;
curpad = AvARRAY(comppad);
#ifdef USE_THREADS
- DEBUG_X(fprintf(stderr, "0x%lx Pad 0x%lx alloc %ld for %s\n",
- (unsigned long) thr, (unsigned long) curpad,
- (long) retval, op_name[optype]));
+ DEBUG_X(PerlIO_printf(Perl_debug_log, "0x%lx Pad 0x%lx alloc %ld for %s\n",
+ (unsigned long) thr, (unsigned long) curpad,
+ (long) retval, op_name[optype]));
#else
- DEBUG_X(fprintf(stderr, "Pad alloc %ld for %s\n", (long) retval, op_name[optype]));
+ DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%lx alloc %ld for %s\n",
+ (unsigned long) curpad,
+ (long) retval, op_name[optype]));
#endif /* USE_THREADS */
return (PADOFFSET)retval;
}
SV *
-#ifndef CAN_PROTOTYPE
-pad_sv(po)
-PADOFFSET po;
-#else
pad_sv(PADOFFSET po)
-#endif /* CAN_PROTOTYPE */
{
dTHR;
#ifdef USE_THREADS
- DEBUG_X(fprintf(stderr, "0x%lx Pad 0x%lx sv %d\n",
- (unsigned long) thr, (unsigned long) curpad, po));
+ DEBUG_X(PerlIO_printf(Perl_debug_log, "0x%lx Pad 0x%lx sv %d\n",
+ (unsigned long) thr, (unsigned long) curpad, po));
#else
if (!po)
croak("panic: pad_sv po");
- DEBUG_X(fprintf(stderr, "Pad sv %d\n", po));
+ DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%lx sv %d\n",
+ (unsigned long) curpad, po));
#endif /* USE_THREADS */
return curpad[po]; /* eventually we'll turn this into a macro */
}
void
-#ifndef CAN_PROTOTYPE
-pad_free(po)
-PADOFFSET po;
-#else
pad_free(PADOFFSET po)
-#endif /* CAN_PROTOTYPE */
{
dTHR;
if (!curpad)
if (!po)
croak("panic: pad_free po");
#ifdef USE_THREADS
- DEBUG_X(fprintf(stderr, "0x%lx Pad 0x%lx free %d\n",
- (unsigned long) thr, (unsigned long) curpad, po));
+ DEBUG_X(PerlIO_printf(Perl_debug_log, "0x%lx Pad 0x%lx free %d\n",
+ (unsigned long) thr, (unsigned long) curpad, po));
#else
- DEBUG_X(fprintf(stderr, "Pad free %d\n", po));
+ DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%lx free %d\n",
+ (unsigned long) curpad, po));
#endif /* USE_THREADS */
if (curpad[po] && curpad[po] != &sv_undef)
SvPADTMP_off(curpad[po]);
}
void
-#ifndef CAN_PROTOTYPE
-pad_swipe(po)
-PADOFFSET po;
-#else
pad_swipe(PADOFFSET po)
-#endif /* CAN_PROTOTYPE */
{
dTHR;
if (AvARRAY(comppad) != curpad)
if (!po)
croak("panic: pad_swipe po");
#ifdef USE_THREADS
- DEBUG_X(fprintf(stderr, "0x%lx Pad 0x%lx swipe %d\n",
- (unsigned long) thr, (unsigned long) curpad, po));
+ DEBUG_X(PerlIO_printf(Perl_debug_log, "0x%lx Pad 0x%lx swipe %d\n",
+ (unsigned long) thr, (unsigned long) curpad, po));
#else
- DEBUG_X(fprintf(stderr, "Pad swipe %d\n", po));
+ DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%lx swipe %d\n",
+ (unsigned long) curpad, po));
#endif /* USE_THREADS */
SvPADTMP_off(curpad[po]);
curpad[po] = NEWSV(1107,0);
padix = po - 1;
}
+/* XXX pad_reset() is currently disabled because it results in serious bugs.
+ * It causes pad temp TARGs to be shared between OPs. Since TARGs are pushed
+ * on the stack by OPs that use them, there are several ways to get an alias
+ * to a shared TARG. Such an alias will change randomly and unpredictably.
+ * We avoid doing this until we can think of a Better Way.
+ * GSAR 97-10-29 */
void
-pad_reset()
+pad_reset(void)
{
+#ifdef USE_BROKEN_PAD_RESET
dTHR;
register I32 po;
if (AvARRAY(comppad) != curpad)
croak("panic: pad_reset curpad");
#ifdef USE_THREADS
- DEBUG_X(fprintf(stderr, "0x%lx Pad 0x%lx reset\n",
- (unsigned long) thr, (unsigned long) curpad));
+ DEBUG_X(PerlIO_printf(Perl_debug_log, "0x%lx Pad 0x%lx reset\n",
+ (unsigned long) thr, (unsigned long) curpad));
#else
- DEBUG_X(fprintf(stderr, "Pad reset\n"));
+ DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%lx reset\n",
+ (unsigned long) curpad));
#endif /* USE_THREADS */
if (!tainting) { /* Can't mix tainted and non-tainted temporaries. */
for (po = AvMAX(comppad); po > padix_floor; po--) {
- if (curpad[po] && curpad[po] != &sv_undef)
+ if (curpad[po] && !SvIMMORTAL(curpad[po]))
SvPADTMP_off(curpad[po]);
}
padix = padix_floor;
}
+#endif
pad_reset_pending = FALSE;
}
+#ifdef USE_THREADS
+/* find_threadsv is not reentrant */
+PADOFFSET
+find_threadsv(char *name)
+{
+ dTHR;
+ char *p;
+ PADOFFSET key;
+ SV **svp;
+ /* We currently only handle names of a single character */
+ p = strchr(threadsv_names, *name);
+ if (!p)
+ return NOT_IN_PAD;
+ key = p - threadsv_names;
+ svp = av_fetch(thr->threadsv, key, FALSE);
+ if (!svp) {
+ SV *sv = NEWSV(0, 0);
+ av_store(thr->threadsv, key, sv);
+ thr->threadsvp = AvARRAY(thr->threadsv);
+ /*
+ * Some magic variables used to be automagically initialised
+ * in gv_fetchpv. Those which are now per-thread magicals get
+ * initialised here instead.
+ */
+ switch (*name) {
+ case '_':
+ break;
+ case ';':
+ sv_setpv(sv, "\034");
+ sv_magic(sv, 0, 0, name, 1);
+ break;
+ case '&':
+ case '`':
+ case '\'':
+ sawampersand = TRUE;
+ SvREADONLY_on(sv);
+ /* FALL THROUGH */
+ default:
+ sv_magic(sv, 0, 0, name, 1);
+ }
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "find_threadsv: new SV %p for $%s%c\n",
+ sv, (*name < 32) ? "^" : "",
+ (*name < 32) ? toCTRL(*name) : *name));
+ }
+ return key;
+}
+#endif /* USE_THREADS */
+
/* Destructor */
void
-op_free(o)
-OP *o;
+op_free(OP *o)
{
register OP *kid, *nextkid;
- if (!o)
+ if (!o || o->op_seq == (U16)-1)
return;
if (o->op_flags & OPf_KIDS) {
case OP_ENTEREVAL:
o->op_targ = 0; /* Was holding hints. */
break;
+#ifdef USE_THREADS
+ case OP_THREADSV:
+ o->op_targ = 0; /* Was holding index into thr->threadsv AV. */
+ break;
+#endif /* USE_THREADS */
+ default:
+ if (!(o->op_flags & OPf_REF) || (check[o->op_type] != ck_ftst))
+ break;
+ /* FALL THROUGH */
case OP_GVSV:
case OP_GV:
+ case OP_AELEMFAST:
SvREFCNT_dec(cGVOPo->op_gv);
break;
case OP_NEXTSTATE:
case OP_DBSTATE:
+ Safefree(cCOPo->cop_label);
SvREFCNT_dec(cCOPo->cop_filegv);
break;
case OP_CONST:
/* FALL THROUGH */
case OP_PUSHRE:
case OP_MATCH:
- pregfree(cPMOPo->op_pmregexp);
- SvREFCNT_dec(cPMOPo->op_pmshort);
- break;
- default:
+ ReREFCNT_dec(cPMOPo->op_pmregexp);
break;
}
}
static void
-null(o)
-OP* o;
+null(OP *o)
{
- if (o->op_type != OP_NULL && o->op_targ > 0)
+ if (o->op_type != OP_NULL && o->op_type != OP_THREADSV && o->op_targ > 0)
pad_free(o->op_targ);
o->op_targ = o->op_type;
o->op_type = OP_NULL;
#define LINKLIST(o) ((o)->op_next ? (o)->op_next : linklist((OP*)o))
OP *
-linklist(o)
-OP *o;
+linklist(OP *o)
{
register OP *kid;
}
OP *
-scalarkids(o)
-OP *o;
+scalarkids(OP *o)
{
OP *kid;
if (o && o->op_flags & OPf_KIDS) {
}
static OP *
-scalarboolean(o)
-OP *o;
+scalarboolean(OP *o)
{
if (dowarn &&
o->op_type == OP_SASSIGN && cBINOPo->op_first->op_type == OP_CONST) {
+ dTHR;
line_t oldline = curcop->cop_line;
if (copline != NOLINE)
}
OP *
-scalar(o)
-OP *o;
+scalar(OP *o)
{
OP *kid;
/* assumes no premature commitment */
- if (!o || (o->op_flags & OPf_KNOW) || error_count)
+ if (!o || (o->op_flags & OPf_WANT) || error_count
+ || o->op_type == OP_RETURN)
return o;
- o->op_flags &= ~OPf_LIST;
- o->op_flags |= OPf_KNOW;
+ o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_SCALAR;
switch (o->op_type) {
case OP_REPEAT:
break;
case OP_LEAVE:
case OP_LEAVETRY:
- scalar(cLISTOPo->op_first);
- /* FALL THROUGH */
+ kid = cLISTOPo->op_first;
+ scalar(kid);
+ while (kid = kid->op_sibling) {
+ if (kid->op_sibling)
+ scalarvoid(kid);
+ else
+ scalar(kid);
+ }
+ WITH_THR(curcop = &compiling);
+ break;
case OP_SCOPE:
case OP_LINESEQ:
case OP_LIST:
else
scalar(kid);
}
- curcop = &compiling;
+ WITH_THR(curcop = &compiling);
break;
}
return o;
}
OP *
-scalarvoid(o)
-OP *o;
+scalarvoid(OP *o)
{
OP *kid;
char* useless = 0;
SV* sv;
- if (!o || error_count)
- return o;
- if (o->op_flags & OPf_LIST)
+ /* assumes no premature commitment */
+ if (!o || (o->op_flags & OPf_WANT) == OPf_WANT_LIST || error_count
+ || o->op_type == OP_RETURN)
return o;
- o->op_flags |= OPf_KNOW;
+ o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_VOID;
switch (o->op_type) {
default:
if (!(opargs[o->op_type] & OA_FOLDCONST))
break;
+ /* FALL THROUGH */
+ case OP_REPEAT:
if (o->op_flags & OPf_STACKED)
break;
/* FALL THROUGH */
case OP_AELEM:
case OP_AELEMFAST:
case OP_ASLICE:
- case OP_VALUES:
- case OP_KEYS:
case OP_HELEM:
case OP_HSLICE:
case OP_UNPACK:
case OP_NEXTSTATE:
case OP_DBSTATE:
- curcop = ((COP*)o); /* for warning below */
+ WITH_THR(curcop = ((COP*)o)); /* for warning below */
break;
case OP_CONST:
o->op_ppaddr = ppaddr[OP_PREDEC];
break;
- case OP_REPEAT:
- scalarvoid(cBINOPo->op_first);
- useless = op_desc[o->op_type];
- break;
-
case OP_OR:
case OP_AND:
case OP_COND_EXPR:
for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling)
scalarvoid(kid);
break;
+
case OP_NULL:
if (o->op_targ == OP_NEXTSTATE || o->op_targ == OP_DBSTATE)
- curcop = ((COP*)o); /* for warning below */
+ WITH_THR(curcop = ((COP*)o)); /* for warning below */
if (o->op_flags & OPf_STACKED)
break;
+ /* FALL THROUGH */
case OP_ENTERTRY:
case OP_ENTER:
case OP_SCALAR:
if (!(o->op_flags & OPf_KIDS))
break;
+ /* FALL THROUGH */
case OP_SCOPE:
case OP_LEAVE:
case OP_LEAVETRY:
case OP_LEAVELOOP:
- o->op_private |= OPpLEAVE_VOID;
case OP_LINESEQ:
case OP_LIST:
for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling)
scalarvoid(kid);
break;
+ case OP_ENTEREVAL:
+ scalarkids(o);
+ break;
+ case OP_REQUIRE:
+ /* all requires must return a boolean value */
+ o->op_flags &= ~OPf_WANT;
+ return scalar(o);
case OP_SPLIT:
if ((kid = cLISTOPo->op_first) && kid->op_type == OP_PUSHRE) {
if (!kPMOP->op_pmreplroot)
deprecate("implicit split to @_");
}
break;
- case OP_DELETE:
- o->op_private |= OPpLEAVE_VOID;
- break;
}
if (useless && dowarn)
warn("Useless use of %s in void context", useless);
}
OP *
-listkids(o)
-OP *o;
+listkids(OP *o)
{
OP *kid;
if (o && o->op_flags & OPf_KIDS) {
}
OP *
-list(o)
-OP *o;
+list(OP *o)
{
OP *kid;
/* assumes no premature commitment */
- if (!o || (o->op_flags & OPf_KNOW) || error_count)
+ if (!o || (o->op_flags & OPf_WANT) || error_count
+ || o->op_type == OP_RETURN)
return o;
- o->op_flags |= (OPf_KNOW | OPf_LIST);
+ o->op_flags = (o->op_flags & ~OPf_WANT) | OPf_WANT_LIST;
switch (o->op_type) {
case OP_FLOP:
break;
case OP_LEAVE:
case OP_LEAVETRY:
- list(cLISTOPo->op_first);
- /* FALL THROUGH */
+ kid = cLISTOPo->op_first;
+ list(kid);
+ while (kid = kid->op_sibling) {
+ if (kid->op_sibling)
+ scalarvoid(kid);
+ else
+ list(kid);
+ }
+ WITH_THR(curcop = &compiling);
+ break;
case OP_SCOPE:
case OP_LINESEQ:
for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) {
else
list(kid);
}
- curcop = &compiling;
+ WITH_THR(curcop = &compiling);
break;
+ case OP_REQUIRE:
+ /* all requires must return a boolean value */
+ o->op_flags &= ~OPf_WANT;
+ return scalar(o);
}
return o;
}
OP *
-scalarseq(o)
-OP *o;
+scalarseq(OP *o)
{
OP *kid;
o->op_type == OP_LEAVE ||
o->op_type == OP_LEAVETRY)
{
+ dTHR;
for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) {
if (kid->op_sibling) {
scalarvoid(kid);
}
static OP *
-modkids(o, type)
-OP *o;
-I32 type;
+modkids(OP *o, I32 type)
{
OP *kid;
if (o && o->op_flags & OPf_KIDS) {
return o;
}
-static I32 modcount;
-
OP *
-mod(o, type)
-OP *o;
-I32 type;
+mod(OP *o, I32 type)
{
dTHR;
OP *kid;
SV *sv;
- char mtype;
if (!o || error_count)
return o;
switch (o->op_type) {
+ case OP_UNDEF:
+ modcount++;
+ return o;
case OP_CONST:
if (!(o->op_private & (OPpCONST_ARYBASE)))
goto nomod;
else
croak("That use of $[ is unsupported");
break;
+ case OP_STUB:
+ if (o->op_flags & OPf_PARENS)
+ break;
+ goto nomod;
case OP_ENTERSUB:
if ((type == OP_UNDEF || type == OP_REFGEN) &&
!(o->op_flags & OPf_STACKED)) {
/* grep, foreach, subcalls, refgen */
if (type == OP_GREPSTART || type == OP_ENTERSUB || type == OP_REFGEN)
break;
- sprintf(tokenbuf, "Can't modify %s in %s",
- op_desc[o->op_type],
- type ? op_desc[type] : "local");
- yyerror(tokenbuf);
+ yyerror(form("Can't modify %s in %s",
+ op_desc[o->op_type],
+ type ? op_desc[type] : "local"));
return o;
case OP_PREINC:
case OP_RV2AV:
case OP_RV2HV:
+ if (!type && cUNOPo->op_first->op_type != OP_GV)
+ croak("Can't localize through a reference");
if (type == OP_REFGEN && o->op_flags & OPf_PARENS) {
modcount = 10000;
return o; /* Treat \(@foo) like ordinary list. */
}
/* FALL THROUGH */
case OP_RV2GV:
+ if (scalar_mod_type(o, type))
+ goto nomod;
ref(cUNOPo->op_first, o->op_type);
/* FALL THROUGH */
case OP_AASSIGN:
break;
case OP_RV2SV:
if (!type && cUNOPo->op_first->op_type != OP_GV)
- croak("Can't localize a reference");
- ref(cUNOPo->op_first, o->op_type);
+ croak("Can't localize through a reference");
+ ref(cUNOPo->op_first, o->op_type);
/* FALL THROUGH */
- case OP_UNDEF:
case OP_GV:
case OP_AV2ARYLEN:
+ hints |= HINT_BLOCK_SCOPE;
case OP_SASSIGN:
case OP_AELEMFAST:
modcount++;
case OP_PADAV:
case OP_PADHV:
modcount = 10000;
+ if (type == OP_REFGEN && o->op_flags & OPf_PARENS)
+ return o; /* Treat \(@foo) like ordinary list. */
+ if (scalar_mod_type(o, type))
+ goto nomod;
/* FALL THROUGH */
case OP_PADSV:
modcount++;
SvPV(*av_fetch(comppad_name, o->op_targ, 4), na));
break;
+#ifdef USE_THREADS
+ case OP_THREADSV:
+ modcount++; /* XXX ??? */
+ break;
+#endif /* USE_THREADS */
+
case OP_PUSHMARK:
break;
+ case OP_KEYS:
+ if (type != OP_SASSIGN)
+ goto nomod;
+ /* FALL THROUGH */
case OP_POS:
- mtype = '.';
- goto makelv;
case OP_VEC:
- mtype = 'v';
- goto makelv;
case OP_SUBSTR:
- mtype = 'x';
- makelv:
pad_free(o->op_targ);
o->op_targ = pad_alloc(o->op_type, SVs_PADMY);
- sv = PAD_SV(o->op_targ);
- sv_upgrade(sv, SVt_PVLV);
- sv_magic(sv, Nullsv, mtype, Nullch, 0);
- curpad[o->op_targ] = sv;
+ assert(SvTYPE(PAD_SV(o->op_targ)) == SVt_NULL);
if (o->op_flags & OPf_KIDS)
mod(cBINOPo->op_first->op_sibling, type);
break;
case OP_AELEM:
case OP_HELEM:
ref(cBINOPo->op_first, o->op_type);
+ if (type == OP_ENTERSUB &&
+ !(o->op_private & (OPpLVAL_INTRO | OPpDEREF)))
+ o->op_private |= OPpLVAL_DEFER;
modcount++;
break;
else if (!type) {
o->op_private |= OPpLVAL_INTRO;
o->op_flags &= ~OPf_SPECIAL;
+ hints |= HINT_BLOCK_SCOPE;
}
else if (type != OP_GREPSTART && type != OP_ENTERSUB)
o->op_flags |= OPf_REF;
return o;
}
+static bool
+scalar_mod_type(OP *o, I32 type)
+{
+ switch (type) {
+ case OP_SASSIGN:
+ if (o->op_type == OP_RV2GV)
+ return FALSE;
+ /* FALL THROUGH */
+ case OP_PREINC:
+ case OP_PREDEC:
+ case OP_POSTINC:
+ case OP_POSTDEC:
+ case OP_I_PREINC:
+ case OP_I_PREDEC:
+ case OP_I_POSTINC:
+ case OP_I_POSTDEC:
+ case OP_POW:
+ case OP_MULTIPLY:
+ case OP_DIVIDE:
+ case OP_MODULO:
+ case OP_REPEAT:
+ case OP_ADD:
+ case OP_SUBTRACT:
+ case OP_I_MULTIPLY:
+ case OP_I_DIVIDE:
+ case OP_I_MODULO:
+ case OP_I_ADD:
+ case OP_I_SUBTRACT:
+ case OP_LEFT_SHIFT:
+ case OP_RIGHT_SHIFT:
+ case OP_BIT_AND:
+ case OP_BIT_XOR:
+ case OP_BIT_OR:
+ case OP_CONCAT:
+ case OP_SUBST:
+ case OP_TRANS:
+ case OP_ANDASSIGN: /* may work later */
+ case OP_ORASSIGN: /* may work later */
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
OP *
-refkids(o, type)
-OP *o;
-I32 type;
+refkids(OP *o, I32 type)
{
OP *kid;
if (o && o->op_flags & OPf_KIDS) {
}
OP *
-ref(o, type)
-OP *o;
-I32 type;
+ref(OP *o, I32 type)
{
OP *kid;
switch (o->op_type) {
case OP_ENTERSUB:
- if ((type == OP_DEFINED) &&
+ if ((type == OP_DEFINED || type == OP_LOCK) &&
!(o->op_flags & OPf_STACKED)) {
o->op_type = OP_RV2CV; /* entersub => rv2cv */
o->op_ppaddr = ppaddr[OP_RV2CV];
o->op_flags |= OPf_SPECIAL;
}
break;
-
+
case OP_COND_EXPR:
for (kid = cUNOPo->op_first->op_sibling; kid; kid = kid->op_sibling)
ref(kid, type);
ref(cUNOPo->op_first, o->op_type);
/* FALL THROUGH */
case OP_PADSV:
- if (type == OP_RV2AV || type == OP_RV2HV) {
- o->op_private |= (type == OP_RV2AV ? OPpDEREF_AV : OPpDEREF_HV);
+ if (type == OP_RV2SV || type == OP_RV2AV || type == OP_RV2HV) {
+ o->op_private |= (type == OP_RV2AV ? OPpDEREF_AV
+ : type == OP_RV2HV ? OPpDEREF_HV
+ : OPpDEREF_SV);
o->op_flags |= OPf_MOD;
}
break;
+ case OP_THREADSV:
+ o->op_flags |= OPf_MOD; /* XXX ??? */
+ break;
+
case OP_RV2AV:
case OP_RV2HV:
- o->op_flags |= OPf_REF;
+ o->op_flags |= OPf_REF;
/* FALL THROUGH */
case OP_RV2GV:
ref(cUNOPo->op_first, o->op_type);
case OP_PADAV:
case OP_PADHV:
- o->op_flags |= OPf_REF;
+ o->op_flags |= OPf_REF;
break;
-
+
case OP_SCALAR:
case OP_NULL:
if (!(o->op_flags & OPf_KIDS))
case OP_AELEM:
case OP_HELEM:
ref(cBINOPo->op_first, o->op_type);
- if (type == OP_RV2AV || type == OP_RV2HV) {
- o->op_private |= (type == OP_RV2AV ? OPpDEREF_AV : OPpDEREF_HV);
+ if (type == OP_RV2SV || type == OP_RV2AV || type == OP_RV2HV) {
+ o->op_private |= (type == OP_RV2AV ? OPpDEREF_AV
+ : type == OP_RV2HV ? OPpDEREF_HV
+ : OPpDEREF_SV);
o->op_flags |= OPf_MOD;
}
break;
}
OP *
-my(o)
-OP *o;
+my(OP *o)
{
OP *kid;
I32 type;
if (type == OP_LIST) {
for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling)
my(kid);
- }
- else if (type != OP_PADSV &&
+ } else if (type == OP_UNDEF) {
+ return o;
+ } else if (type != OP_PADSV &&
type != OP_PADAV &&
type != OP_PADHV &&
type != OP_PUSHMARK)
{
- sprintf(tokenbuf, "Can't declare %s in my", op_desc[o->op_type]);
- yyerror(tokenbuf);
+ yyerror(form("Can't declare %s in my", op_desc[o->op_type]));
return o;
}
o->op_flags |= OPf_MOD;
}
OP *
-sawparens(o)
-OP *o;
+sawparens(OP *o)
{
if (o)
o->op_flags |= OPf_PARENS;
}
OP *
-bind_match(type, left, right)
-I32 type;
-OP *left;
-OP *right;
+bind_match(I32 type, OP *left, OP *right)
{
OP *o;
+ if (dowarn &&
+ (left->op_type == OP_RV2AV ||
+ left->op_type == OP_RV2HV ||
+ left->op_type == OP_PADAV ||
+ left->op_type == OP_PADHV)) {
+ char *desc = op_desc[(right->op_type == OP_SUBST ||
+ right->op_type == OP_TRANS)
+ ? right->op_type : OP_MATCH];
+ char *sample = ((left->op_type == OP_RV2AV ||
+ left->op_type == OP_PADAV)
+ ? "@array" : "%hash");
+ warn("Applying %s to %s will act on scalar(%s)", desc, sample, sample);
+ }
+
if (right->op_type == OP_MATCH ||
right->op_type == OP_SUBST ||
right->op_type == OP_TRANS) {
}
OP *
-invert(o)
-OP *o;
+invert(OP *o)
{
if (!o)
return o;
}
OP *
-scope(o)
-OP *o;
+scope(OP *o)
{
if (o) {
- if (o->op_flags & OPf_PARENS || perldb || tainting) {
+ if (o->op_flags & OPf_PARENS || PERLDB_NOOPT || tainting) {
o = prepend_elem(OP_LINESEQ, newOP(OP_ENTER, 0), o);
o->op_type = OP_LEAVE;
o->op_ppaddr = ppaddr[OP_LEAVE];
}
int
-block_start()
+block_start(int full)
{
dTHR;
int retval = savestack_ix;
- comppad_name_fill = AvFILL(comppad_name);
- SAVEINT(min_intro_pending);
- SAVEINT(max_intro_pending);
+ SAVEI32(comppad_name_floor);
+ if (full) {
+ if ((comppad_name_fill = AvFILLp(comppad_name)) > 0)
+ comppad_name_floor = comppad_name_fill;
+ else
+ comppad_name_floor = 0;
+ }
+ SAVEI32(min_intro_pending);
+ SAVEI32(max_intro_pending);
min_intro_pending = 0;
- SAVEINT(comppad_name_fill);
- SAVEINT(padix_floor);
+ SAVEI32(comppad_name_fill);
+ SAVEI32(padix_floor);
padix_floor = padix;
pad_reset_pending = FALSE;
- SAVEINT(hints);
+ SAVEI32(hints);
hints &= ~HINT_BLOCK_SCOPE;
return retval;
}
OP*
-block_end(line, floor, seq)
-int line;
-int floor;
-OP* seq;
+block_end(I32 floor, OP *seq)
{
dTHR;
int needblockscope = hints & HINT_BLOCK_SCOPE;
OP* retval = scalarseq(seq);
- if (copline > (line_t)line)
- copline = line;
LEAVE_SCOPE(floor);
pad_reset_pending = FALSE;
if (needblockscope)
hints |= HINT_BLOCK_SCOPE; /* propagate out */
pad_leavemy(comppad_name_fill);
+ cop_seqmax++;
return retval;
}
+static OP *
+newDEFSVOP(void)
+{
+#ifdef USE_THREADS
+ OP *o = newOP(OP_THREADSV, 0);
+ o->op_targ = find_threadsv("_");
+ return o;
+#else
+ return newSVREF(newGVOP(OP_GV, 0, defgv));
+#endif /* USE_THREADS */
+}
+
void
-newPROG(o)
-OP *o;
+newPROG(OP *o)
{
dTHR;
if (in_eval) {
- eval_root = newUNOP(OP_LEAVEEVAL, 0, o);
+ eval_root = newUNOP(OP_LEAVEEVAL, ((in_eval & 4) ? OPf_SPECIAL : 0), o);
eval_start = linklist(eval_root);
eval_root->op_next = 0;
peep(eval_start);
}
else {
- if (!o) {
- main_start = 0;
+ if (!o)
return;
- }
main_root = scope(sawparens(scalarvoid(o)));
curcop = &compiling;
main_start = LINKLIST(main_root);
main_root->op_next = 0;
peep(main_start);
- main_cv = compcv;
compcv = 0;
+
+ /* Register with debugger */
+ if (PERLDB_INTER) {
+ CV *cv = perl_get_cv("DB::postponed", FALSE);
+ if (cv) {
+ dSP;
+ PUSHMARK(SP);
+ XPUSHs((SV*)compiling.cop_filegv);
+ PUTBACK;
+ perl_call_sv((SV*)cv, G_DISCARD);
+ }
+ }
}
}
OP *
-localize(o, lex)
-OP *o;
-I32 lex;
+localize(OP *o, I32 lex)
{
if (o->op_flags & OPf_PARENS)
list(o);
else {
- scalar(o);
if (dowarn && bufptr > oldbufptr && bufptr[-1] == ',') {
char *s;
for (s = bufptr; *s && (isALNUM(*s) || strchr("@$%, ",*s)); s++) ;
}
}
in_my = FALSE;
+ in_my_stash = Nullhv;
if (lex)
return my(o);
else
}
OP *
-jmaybe(o)
-OP *o;
+jmaybe(OP *o)
{
if (o->op_type == OP_LIST) {
- o = convert(OP_JOIN, 0,
- prepend_elem(OP_LIST,
- newSVREF(newGVOP(OP_GV, 0, gv_fetchpv(";", TRUE, SVt_PV))),
- o));
+ OP *o2;
+#ifdef USE_THREADS
+ o2 = newOP(OP_THREADSV, 0);
+ o2->op_targ = find_threadsv(";");
+#else
+ o2 = newSVREF(newGVOP(OP_GV, 0, gv_fetchpv(";", TRUE, SVt_PV))),
+#endif /* USE_THREADS */
+ o = convert(OP_JOIN, 0, prepend_elem(OP_LIST, o2, o));
}
return o;
}
OP *
-fold_constants(o)
-register OP *o;
+fold_constants(register OP *o)
{
dTHR;
register OP *curop;
if (!(opargs[type] & OA_FOLDCONST))
goto nope;
+ switch (type) {
+ case OP_SPRINTF:
+ case OP_UCFIRST:
+ case OP_LCFIRST:
+ case OP_UC:
+ case OP_LC:
+ case OP_SLT:
+ case OP_SGT:
+ case OP_SLE:
+ case OP_SGE:
+ case OP_SCMP:
+
+ if (o->op_private & OPpLOCALE)
+ goto nope;
+ }
+
if (error_count)
goto nope; /* Don't try to run w/ errors */
}
op_free(o);
if (type == OP_RV2GV)
- return newGVOP(OP_GV, 0, sv);
+ return newGVOP(OP_GV, 0, (GV*)sv);
else {
if ((SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK)) == SVf_NOK) {
IV iv = SvIV(sv);
SvREFCNT_dec(sv);
sv = newSViv(iv);
}
+ else
+ SvIOK_off(sv); /* undo SvIV() damage */
}
return newSVOP(OP_CONST, 0, sv);
}
-
+
nope:
if (!(opargs[type] & OA_OTHERINT))
return o;
if (!(hints & HINT_INTEGER)) {
- int vars = 0;
-
if (type == OP_DIVIDE || !(o->op_flags & OPf_KIDS))
return o;
for (curop = ((UNOP*)o)->op_first; curop; curop = curop->op_sibling) {
if (curop->op_type == OP_CONST) {
- if (SvIOK(((SVOP*)curop)->op_sv)) {
- if (SvIVX(((SVOP*)curop)->op_sv) <= 0 && vars++)
- return o; /* negatives truncate wrong way, alas */
+ if (SvIOK(((SVOP*)curop)->op_sv))
continue;
- }
return o;
}
if (opargs[curop->op_type] & OA_RETINTEGER)
continue;
- if (curop->op_type == OP_PADSV || curop->op_type == OP_RV2SV) {
- if (vars++)
- return o;
- if (((o->op_type == OP_LT || o->op_type == OP_GE) &&
- curop == ((BINOP*)o)->op_first ) ||
- ((o->op_type == OP_GT || o->op_type == OP_LE) &&
- curop == ((BINOP*)o)->op_last ))
- {
- /* Allow "$i < 100" and variants to integerize */
- continue;
- }
- }
return o;
}
o->op_ppaddr = ppaddr[++(o->op_type)];
}
OP *
-gen_constant_list(o)
-register OP *o;
+gen_constant_list(register OP *o)
{
dTHR;
register OP *curop;
}
OP *
-convert(type, flags, o)
-I32 type;
-I32 flags;
-OP* o;
+convert(I32 type, I32 flags, OP *o)
{
OP *kid;
OP *last = 0;
if (!o || o->op_type != OP_LIST)
o = newLISTOP(OP_LIST, 0, o, Nullop);
else
- o->op_flags &= ~(OPf_KNOW|OPf_LIST);
+ o->op_flags &= ~OPf_WANT;
if (!(opargs[type] & OA_MARK))
null(cLISTOPo->op_first);
/* List constructors */
OP *
-append_elem(type, first, last)
-I32 type;
-OP* first;
-OP* last;
+append_elem(I32 type, OP *first, OP *last)
{
if (!first)
return last;
}
OP *
-append_list(type, first, last)
-I32 type;
-LISTOP* first;
-LISTOP* last;
+append_list(I32 type, LISTOP *first, LISTOP *last)
{
if (!first)
return (OP*)last;
}
OP *
-prepend_elem(type, first, last)
-I32 type;
-OP* first;
-OP* last;
+prepend_elem(I32 type, OP *first, OP *last)
{
if (!first)
return last;
/* Constructors */
OP *
-newNULLLIST()
+newNULLLIST(void)
{
return newOP(OP_STUB, 0);
}
OP *
-force_list(o)
-OP *o;
+force_list(OP *o)
{
if (!o || o->op_type != OP_LIST)
o = newLISTOP(OP_LIST, 0, o, Nullop);
}
OP *
-newLISTOP(type, flags, first, last)
-I32 type;
-I32 flags;
-OP* first;
-OP* last;
+newLISTOP(I32 type, I32 flags, OP *first, OP *last)
{
LISTOP *listop;
}
OP *
-newOP(type, flags)
-I32 type;
-I32 flags;
+newOP(I32 type, I32 flags)
{
OP *o;
Newz(1101, o, 1, OP);
}
OP *
-newUNOP(type, flags, first)
-I32 type;
-I32 flags;
-OP* first;
+newUNOP(I32 type, I32 flags, OP *first)
{
UNOP *unop;
if (!first)
- first = newOP(OP_STUB, 0);
+ first = newOP(OP_STUB, 0);
if (opargs[type] & OA_MARK)
first = force_list(first);
unop->op_first = first;
unop->op_flags = flags | OPf_KIDS;
unop->op_private = 1 | (flags >> 8);
-
+#if 1
+ if(type == OP_STUDY && first->op_type == OP_MATCH) {
+ first->op_type = OP_PUSHRE;
+ first->op_ppaddr = ppaddr[OP_PUSHRE];
+ }
+#endif
unop = (UNOP*) CHECKOP(type, unop);
if (unop->op_next)
return (OP*)unop;
}
OP *
-newBINOP(type, flags, first, last)
-I32 type;
-I32 flags;
-OP* first;
-OP* last;
+newBINOP(I32 type, I32 flags, OP *first, OP *last)
{
BINOP *binop;
Newz(1101, binop, 1, BINOP);
}
OP *
-pmtrans(o, expr, repl)
-OP *o;
-OP *expr;
-OP *repl;
+pmtrans(OP *o, OP *expr, OP *repl)
{
SV *tstr = ((SVOP*)expr)->op_sv;
SV *rstr = ((SVOP*)repl)->op_sv;
register U8 *r = (U8*)SvPV(rstr, rlen);
register I32 i;
register I32 j;
- I32 delete;
+ I32 Delete;
I32 complement;
+ I32 squash;
register short *tbl;
tbl = (short*)cPVOPo->op_pv;
complement = o->op_private & OPpTRANS_COMPLEMENT;
- delete = o->op_private & OPpTRANS_DELETE;
- /* squash = o->op_private & OPpTRANS_SQUASH; */
+ Delete = o->op_private & OPpTRANS_DELETE;
+ squash = o->op_private & OPpTRANS_SQUASH;
if (complement) {
Zero(tbl, 256, short);
for (i = 0, j = 0; i < 256; i++) {
if (!tbl[i]) {
if (j >= rlen) {
- if (delete)
+ if (Delete)
tbl[i] = -2;
else if (rlen)
tbl[i] = r[j-1];
}
}
else {
- if (!rlen && !delete) {
+ if (!rlen && !Delete) {
r = t; rlen = tlen;
+ if (!squash)
+ o->op_private |= OPpTRANS_COUNTONLY;
}
for (i = 0; i < 256; i++)
tbl[i] = -1;
for (i = 0, j = 0; i < tlen; i++,j++) {
if (j >= rlen) {
- if (delete) {
+ if (Delete) {
if (tbl[t[i]] == -1)
tbl[t[i]] = -2;
continue;
}
OP *
-newPMOP(type, flags)
-I32 type;
-I32 flags;
+newPMOP(I32 type, I32 flags)
{
dTHR;
PMOP *pmop;
pmop->op_flags = flags;
pmop->op_private = 0 | (flags >> 8);
+ if (hints & HINT_LOCALE)
+ pmop->op_pmpermflags = (pmop->op_pmflags |= PMf_LOCALE);
+
/* link into pm list */
if (type != OP_TRANS && curstash) {
pmop->op_pmnext = HvPMROOT(curstash);
}
OP *
-pmruntime(o, expr, repl)
-OP *o;
-OP *expr;
-OP *repl;
+pmruntime(OP *o, OP *expr, OP *repl)
{
PMOP *pm;
LOGOP *rcop;
if (o->op_type == OP_TRANS)
return pmtrans(o, expr, repl);
+ hints |= HINT_BLOCK_SCOPE;
pm = (PMOP*)o;
if (expr->op_type == OP_CONST) {
pm->op_pmflags |= PMf_SKIPWHITE;
}
pm->op_pmregexp = pregcomp(p, p + plen, pm);
- if (strEQ("\\s+", pm->op_pmregexp->precomp))
+ if (strEQ("\\s+", pm->op_pmregexp->precomp))
pm->op_pmflags |= PMf_WHITE;
- hoistmust(pm);
op_free(expr);
}
else {
OP *curop;
if (pm->op_pmflags & PMf_EVAL)
curop = 0;
+#ifdef USE_THREADS
+ else if (repl->op_type == OP_THREADSV
+ && strchr("&`'123456789+",
+ threadsv_names[repl->op_targ]))
+ {
+ curop = 0;
+ }
+#endif /* USE_THREADS */
else if (repl->op_type == OP_CONST)
curop = repl;
else {
OP *lastop = 0;
for (curop = LINKLIST(repl); curop!=repl; curop = LINKLIST(curop)) {
if (opargs[curop->op_type] & OA_DANGEROUS) {
+#ifdef USE_THREADS
+ if (curop->op_type == OP_THREADSV
+ && strchr("&`'123456789+", curop->op_private)) {
+ break;
+ }
+#else
if (curop->op_type == OP_GV) {
GV *gv = ((GVOP*)curop)->op_gv;
if (strchr("&`'123456789+", *GvENAME(gv)))
break;
}
+#endif /* USE_THREADS */
else if (curop->op_type == OP_RV2CV)
break;
else if (curop->op_type == OP_RV2SV ||
}
OP *
-newSVOP(type, flags, sv)
-I32 type;
-I32 flags;
-SV *sv;
+newSVOP(I32 type, I32 flags, SV *sv)
{
SVOP *svop;
Newz(1101, svop, 1, SVOP);
}
OP *
-newGVOP(type, flags, gv)
-I32 type;
-I32 flags;
-GV *gv;
+newGVOP(I32 type, I32 flags, GV *gv)
{
dTHR;
GVOP *gvop;
}
OP *
-newPVOP(type, flags, pv)
-I32 type;
-I32 flags;
-char *pv;
+newPVOP(I32 type, I32 flags, char *pv)
{
PVOP *pvop;
Newz(1101, pvop, 1, PVOP);
}
void
-package(o)
-OP *o;
+package(OP *o)
{
dTHR;
SV *sv;
char *name;
sv = cSVOPo->op_sv;
name = SvPV(sv, len);
- curstash = gv_stashpv(name,TRUE);
+ curstash = gv_stashpvn(name,len,TRUE);
sv_setpvn(curstname, name, len);
op_free(o);
}
}
void
-utilize(aver, floor, id, arg)
-int aver;
-I32 floor;
-OP *id;
-OP *arg;
+utilize(int aver, I32 floor, OP *version, OP *id, OP *arg)
{
OP *pack;
OP *meth;
OP *rqop;
OP *imop;
+ OP *veop;
if (id->op_type != OP_CONST)
croak("Module name must be constant");
+ veop = Nullop;
+
+ if(version != Nullop) {
+ SV *vesv = ((SVOP*)version)->op_sv;
+
+ if (arg == Nullop && !SvNIOK(vesv)) {
+ arg = version;
+ }
+ else {
+ OP *pack;
+ OP *meth;
+
+ if (version->op_type != OP_CONST || !SvNIOK(vesv))
+ croak("Version number must be constant number");
+
+ /* Make copy of id so we don't free it twice */
+ pack = newSVOP(OP_CONST, 0, newSVsv(((SVOP*)id)->op_sv));
+
+ /* Fake up a method call to VERSION */
+ meth = newSVOP(OP_CONST, 0, newSVpv("VERSION", 7));
+ veop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL,
+ append_elem(OP_LIST,
+ prepend_elem(OP_LIST, pack, list(version)),
+ newUNOP(OP_METHOD, 0, meth)));
+ }
+ }
+
/* Fake up an import/unimport */
if (arg && arg->op_type == OP_STUB)
imop = arg; /* no import on explicit () */
+ else if(SvNIOK(((SVOP*)id)->op_sv)) {
+ imop = Nullop; /* use 5.0; */
+ }
else {
/* Make copy of id so we don't free it twice */
pack = newSVOP(OP_CONST, 0, newSVsv(((SVOP*)id)->op_sv));
-
meth = newSVOP(OP_CONST, 0,
aver
? newSVpv("import", 6)
newSVOP(OP_CONST, 0, newSVpv("BEGIN", 5)),
Nullop,
append_elem(OP_LINESEQ,
- newSTATEOP(0, Nullch, rqop),
+ append_elem(OP_LINESEQ,
+ newSTATEOP(0, Nullch, rqop),
+ newSTATEOP(0, Nullch, veop)),
newSTATEOP(0, Nullch, imop) ));
copline = NOLINE;
}
OP *
-newSLICEOP(flags, subscript, listval)
-I32 flags;
-OP *subscript;
-OP *listval;
+newSLICEOP(I32 flags, OP *subscript, OP *listval)
{
return newBINOP(OP_LSLICE, flags,
list(force_list(subscript)),
}
static I32
-list_assignment(o)
-register OP *o;
+list_assignment(register OP *o)
{
if (!o)
return TRUE;
}
OP *
-newASSIGNOP(flags, left, optype, right)
-I32 flags;
-OP *left;
-I32 optype;
-OP *right;
+newASSIGNOP(I32 flags, OP *left, I32 optype, OP *right)
{
OP *o;
}
if (list_assignment(left)) {
+ dTHR;
modcount = 0;
eval_start = right; /* Grandfathering $[ assignment here. Bletch.*/
left = mod(left, OP_AASSIGN);
tmpop->op_sibling = Nullop; /* don't free split */
right->op_next = tmpop->op_next; /* fix starting loc */
op_free(o); /* blow off assign */
- right->op_flags &= ~(OPf_KNOW|OPf_LIST);
+ right->op_flags &= ~OPf_WANT;
/* "I don't know and I don't care." */
return right;
}
}
OP *
-newSTATEOP(flags, label, o)
-I32 flags;
-char *label;
-OP *o;
+newSTATEOP(I32 flags, char *label, OP *o)
{
dTHR;
+ U32 seq = intro_my();
register COP *cop;
- /* Introduce my variables. */
- if (min_intro_pending) {
- SV **svp = AvARRAY(comppad_name);
- I32 i;
- SV *sv;
- for (i = min_intro_pending; i <= max_intro_pending; i++) {
- if ((sv = svp[i]) && sv != &sv_undef && !SvIVX(sv)) {
- SvIVX(sv) = 999999999; /* Don't know scope end yet. */
- SvNVX(sv) = (double)cop_seqmax;
- }
- }
- min_intro_pending = 0;
- comppad_name_fill = max_intro_pending; /* Needn't search higher */
- }
-
Newz(1101, cop, 1, COP);
- if (perldb && curcop->cop_line && curstash != debstash) {
+ if (PERLDB_LINE && curcop->cop_line && curstash != debstash) {
cop->op_type = OP_DBSTATE;
cop->op_ppaddr = ppaddr[ OP_DBSTATE ];
}
}
cop->op_flags = flags;
cop->op_private = 0 | (flags >> 8);
+#ifdef NATIVE_HINTS
+ cop->op_private |= NATIVE_HINTS;
+#endif
cop->op_next = (OP*)cop;
if (label) {
cop->cop_label = label;
hints |= HINT_BLOCK_SCOPE;
}
- cop->cop_seq = cop_seqmax++;
+ cop->cop_seq = seq;
cop->cop_arybase = curcop->cop_arybase;
if (copline == NOLINE)
cop->cop_line = copline;
copline = NOLINE;
}
- cop->cop_filegv = SvREFCNT_inc(curcop->cop_filegv);
+ cop->cop_filegv = (GV*)SvREFCNT_inc(curcop->cop_filegv);
cop->cop_stash = curstash;
- if (perldb && curstash != debstash) {
+ if (PERLDB_LINE && curstash != debstash) {
SV **svp = av_fetch(GvAV(curcop->cop_filegv),(I32)cop->cop_line, FALSE);
if (svp && *svp != &sv_undef && !SvIOK(*svp)) {
(void)SvIOK_on(*svp);
return prepend_elem(OP_LINESEQ, (OP*)cop, o);
}
+/* "Introduce" my variables to visible status. */
+U32
+intro_my(void)
+{
+ SV **svp;
+ SV *sv;
+ I32 i;
+
+ if (! min_intro_pending)
+ return cop_seqmax;
+
+ svp = AvARRAY(comppad_name);
+ for (i = min_intro_pending; i <= max_intro_pending; i++) {
+ if ((sv = svp[i]) && sv != &sv_undef && !SvIVX(sv)) {
+ SvIVX(sv) = 999999999; /* Don't know scope end yet. */
+ SvNVX(sv) = (double)cop_seqmax;
+ }
+ }
+ min_intro_pending = 0;
+ comppad_name_fill = max_intro_pending; /* Needn't search higher */
+ return cop_seqmax++;
+}
+
OP *
-newLOGOP(type, flags, first, other)
-I32 type;
-I32 flags;
-OP* first;
-OP* other;
+newLOGOP(I32 type, I32 flags, OP *first, OP *other)
+{
+ return new_logop(type, flags, &first, &other);
+}
+
+static OP *
+new_logop(I32 type, I32 flags, OP** firstp, OP** otherp)
{
dTHR;
LOGOP *logop;
OP *o;
+ OP *first = *firstp;
+ OP *other = *otherp;
if (type == OP_XOR) /* Not short circuit, but here by precedence. */
return newBINOP(type, flags, scalar(first), scalar(other));
else
type = OP_AND;
o = first;
- first = cUNOPo->op_first;
+ first = *firstp = cUNOPo->op_first;
if (o->op_next)
first->op_next = o->op_next;
cUNOPo->op_first = Nullop;
warn("Probable precedence problem on %s", op_desc[type]);
if ((type == OP_AND) == (SvTRUE(((SVOP*)first)->op_sv))) {
op_free(first);
+ *firstp = Nullop;
return other;
}
else {
op_free(other);
+ *otherp = Nullop;
return first;
}
}
else
scalar(other);
}
+ else if (dowarn && (first->op_flags & OPf_KIDS)) {
+ OP *k1 = ((UNOP*)first)->op_first;
+ OP *k2 = k1->op_sibling;
+ OPCODE warnop = 0;
+ switch (first->op_type)
+ {
+ case OP_NULL:
+ if (k2 && k2->op_type == OP_READLINE
+ && (k2->op_flags & OPf_STACKED)
+ && (k1->op_type == OP_RV2SV || k1->op_type == OP_PADSV))
+ warnop = k2->op_type;
+ break;
+
+ case OP_SASSIGN:
+ if (k1->op_type == OP_READDIR
+ || k1->op_type == OP_GLOB
+ || k1->op_type == OP_EACH)
+ warnop = k1->op_type;
+ break;
+ }
+ if (warnop) {
+ line_t oldline = curcop->cop_line;
+ curcop->cop_line = copline;
+ warn("Value of %s%s can be \"0\"; test with defined()",
+ op_desc[warnop],
+ ((warnop == OP_READLINE || warnop == OP_GLOB)
+ ? " construct" : "() operator"));
+ curcop->cop_line = oldline;
+ }
+ }
if (!other)
return first;
}
OP *
-newCONDOP(flags, first, true, false)
-I32 flags;
-OP* first;
-OP* true;
-OP* false;
+newCONDOP(I32 flags, OP *first, OP *trueop, OP *falseop)
{
dTHR;
CONDOP *condop;
OP *o;
- if (!false)
- return newLOGOP(OP_AND, 0, first, true);
- if (!true)
- return newLOGOP(OP_OR, 0, first, false);
+ if (!falseop)
+ return newLOGOP(OP_AND, 0, first, trueop);
+ if (!trueop)
+ return newLOGOP(OP_OR, 0, first, falseop);
scalarboolean(first);
if (first->op_type == OP_CONST) {
if (SvTRUE(((SVOP*)first)->op_sv)) {
op_free(first);
- op_free(false);
- return true;
+ op_free(falseop);
+ return trueop;
}
else {
op_free(first);
- op_free(true);
- return false;
+ op_free(trueop);
+ return falseop;
}
}
else if (first->op_type == OP_WANTARRAY) {
- list(true);
- scalar(false);
+ list(trueop);
+ scalar(falseop);
}
Newz(1101, condop, 1, CONDOP);
condop->op_ppaddr = ppaddr[OP_COND_EXPR];
condop->op_first = first;
condop->op_flags = flags | OPf_KIDS;
- condop->op_true = LINKLIST(true);
- condop->op_false = LINKLIST(false);
+ condop->op_true = LINKLIST(trueop);
+ condop->op_false = LINKLIST(falseop);
condop->op_private = 1 | (flags >> 8);
/* establish postfix order */
condop->op_next = LINKLIST(first);
first->op_next = (OP*)condop;
- first->op_sibling = true;
- true->op_sibling = false;
+ first->op_sibling = trueop;
+ trueop->op_sibling = falseop;
o = newUNOP(OP_NULL, 0, (OP*)condop);
- true->op_next = o;
- false->op_next = o;
+ trueop->op_next = o;
+ falseop->op_next = o;
return o;
}
OP *
-newRANGE(flags, left, right)
-I32 flags;
-OP *left;
-OP *right;
+newRANGE(I32 flags, OP *left, OP *right)
{
dTHR;
CONDOP *condop;
}
OP *
-newLOOPOP(flags, debuggable, expr, block)
-I32 flags;
-I32 debuggable;
-OP *expr;
-OP *block;
+newLOOPOP(I32 flags, I32 debuggable, OP *expr, OP *block)
{
dTHR;
OP* listop;
if (expr) {
if (once && expr->op_type == OP_CONST && !SvTRUE(((SVOP*)expr)->op_sv))
return block; /* do {} while 0 does once */
- else if (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB)
- expr = newASSIGNOP(0, newSVREF(newGVOP(OP_GV, 0, defgv)), 0, expr);
+ if (expr->op_type == OP_READLINE || 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) );
+ }
}
listop = append_elem(OP_LINESEQ, block, newOP(OP_UNSTACK, 0));
- o = newLOGOP(OP_AND, 0, expr, listop);
+ o = new_logop(OP_AND, 0, &expr, &listop);
- ((LISTOP*)listop)->op_last->op_next = LINKLIST(o);
+ if (listop)
+ ((LISTOP*)listop)->op_last->op_next = LINKLIST(o);
if (once && o != listop)
o->op_next = ((LOGOP*)cUNOPo->op_first)->op_other;
}
OP *
-newWHILEOP(flags, debuggable, loop, expr, block, cont)
-I32 flags;
-I32 debuggable;
-LOOP *loop;
-OP *expr;
-OP *block;
-OP *cont;
+newWHILEOP(I32 flags, I32 debuggable, LOOP *loop, I32 whileline, OP *expr, OP *block, OP *cont)
{
dTHR;
OP *redo;
OP *o;
OP *condop;
- if (expr && (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB)) {
+ if (expr && (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB
+ || (expr->op_type == OP_NULL && expr->op_targ == OP_GLOB))) {
expr = newUNOP(OP_DEFINED, 0,
- newASSIGNOP(0, newSVREF(newGVOP(OP_GV, 0, defgv)), 0, expr) );
+ newASSIGNOP(0, newDEFSVOP(), 0, expr) );
}
if (!block)
if (cont)
next = LINKLIST(cont);
- if (expr)
+ if (expr) {
cont = append_elem(OP_LINESEQ, cont, newOP(OP_UNSTACK, 0));
+ if ((line_t)whileline != NOLINE) {
+ copline = whileline;
+ cont = append_elem(OP_LINESEQ, cont,
+ newSTATEOP(0, Nullch, Nullop));
+ }
+ }
listop = append_list(OP_LINESEQ, (LISTOP*)block, (LISTOP*)cont);
redo = LINKLIST(listop);
if (expr) {
- o = newLOGOP(OP_AND, 0, expr, scalar(listop));
+ copline = whileline;
+ scalar(listop);
+ o = new_logop(OP_AND, 0, &expr, &listop);
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 newLOGOP) */
+ return Nullop; /* listop already freed by new_logop */
}
- ((LISTOP*)listop)->op_last->op_next = condop =
- (o == listop ? redo : LINKLIST(o));
+ if (listop)
+ ((LISTOP*)listop)->op_last->op_next = condop =
+ (o == listop ? redo : LINKLIST(o));
if (!next)
next = condop;
}
}
OP *
-#ifndef CAN_PROTOTYPE
-newFOROP(flags,label,forline,sv,expr,block,cont)
-I32 flags;
-char *label;
-line_t forline;
-OP* sv;
-OP* expr;
-OP*block;
-OP*cont;
-#else
newFOROP(I32 flags,char *label,line_t forline,OP *sv,OP *expr,OP *block,OP *cont)
-#endif /* CAN_PROTOTYPE */
{
LOOP *loop;
+ OP *wop;
int padoff = 0;
I32 iterflags = 0;
- copline = forline;
if (sv) {
if (sv->op_type == OP_RV2SV) { /* symbol table variable */
sv->op_type = OP_RV2GV;
op_free(sv);
sv = Nullop;
}
+ else if (sv->op_type == OP_THREADSV) { /* per-thread variable */
+ padoff = sv->op_targ;
+ iterflags |= OPf_SPECIAL;
+ op_free(sv);
+ sv = Nullop;
+ }
else
croak("Can't use %s for loop variable", op_desc[sv->op_type]);
}
else {
+#ifdef USE_THREADS
+ padoff = find_threadsv("_");
+ iterflags |= OPf_SPECIAL;
+#else
sv = newGVOP(OP_GV, 0, defgv);
+#endif
}
- if (expr->op_type == OP_RV2AV) {
+ if (expr->op_type == OP_RV2AV || expr->op_type == OP_PADAV) {
expr = scalar(ref(expr, OP_ITER));
iterflags |= OPf_STACKED;
}
assert(!loop->op_next);
Renew(loop, 1, LOOP);
loop->op_targ = padoff;
- return newSTATEOP(0, label, newWHILEOP(flags, 1, loop,
- newOP(OP_ITER, 0), block, cont));
+ wop = newWHILEOP(flags, 1, loop, forline, newOP(OP_ITER, 0), block, cont);
+ copline = forline;
+ return newSTATEOP(0, label, wop);
}
OP*
-newLOOPEX(type, label)
-I32 type;
-OP* label;
+newLOOPEX(I32 type, OP *label)
{
dTHR;
OP *o;
if (type != OP_GOTO || label->op_type == OP_CONST) {
- o = newPVOP(type, 0, savepv(
- label->op_type == OP_CONST
- ? SvPVx(((SVOP*)label)->op_sv, na)
- : "" ));
+ /* "last()" means "last" */
+ if (label->op_type == OP_STUB && (label->op_flags & OPf_PARENS))
+ o = newOP(type, OPf_SPECIAL);
+ else {
+ o = newPVOP(type, 0, savepv(label->op_type == OP_CONST
+ ? SvPVx(((SVOP*)label)->op_sv, na)
+ : ""));
+ }
op_free(label);
}
else {
}
void
-cv_undef(cv)
-CV *cv;
+cv_undef(CV *cv)
{
dTHR;
#ifdef USE_THREADS
- MUTEX_DESTROY(CvMUTEXP(cv));
- Safefree(CvMUTEXP(cv));
- if (CvCONDP(cv)) {
- COND_DESTROY(CvCONDP(cv));
- Safefree(CvCONDP(cv));
+ if (CvMUTEXP(cv)) {
+ MUTEX_DESTROY(CvMUTEXP(cv));
+ Safefree(CvMUTEXP(cv));
+ CvMUTEXP(cv) = 0;
}
#endif /* USE_THREADS */
CvROOT(cv) = Nullop;
LEAVE;
}
+ SvPOK_off((SV*)cv); /* forget prototype */
+ CvFLAGS(cv) = 0;
SvREFCNT_dec(CvGV(cv));
CvGV(cv) = Nullgv;
SvREFCNT_dec(CvOUTSIDE(cv));
CvOUTSIDE(cv) = Nullcv;
if (CvPADLIST(cv)) {
- I32 i = AvFILL(CvPADLIST(cv));
- while (i >= 0) {
- SV** svp = av_fetch(CvPADLIST(cv), i--, FALSE);
- if (svp)
- SvREFCNT_dec(*svp);
+ /* may be during global destruction */
+ if (SvREFCNT(CvPADLIST(cv))) {
+ I32 i = AvFILLp(CvPADLIST(cv));
+ while (i >= 0) {
+ SV** svp = av_fetch(CvPADLIST(cv), i--, FALSE);
+ SV* sv = svp ? *svp : Nullsv;
+ if (!sv)
+ continue;
+ if (sv == (SV*)comppad_name)
+ comppad_name = Nullav;
+ else if (sv == (SV*)comppad) {
+ comppad = Nullav;
+ curpad = Null(SV**);
+ }
+ SvREFCNT_dec(sv);
+ }
+ SvREFCNT_dec((SV*)CvPADLIST(cv));
}
- SvREFCNT_dec((SV*)CvPADLIST(cv));
CvPADLIST(cv) = Nullav;
}
}
-CV *
-cv_clone(proto)
-CV* proto;
+#ifdef DEBUG_CLOSURES
+static void
+cv_dump(cv)
+CV* cv;
+{
+ CV *outside = CvOUTSIDE(cv);
+ AV* padlist = CvPADLIST(cv);
+ AV* pad_name;
+ AV* pad;
+ SV** pname;
+ SV** ppad;
+ I32 ix;
+
+ PerlIO_printf(Perl_debug_log, "\tCV=0x%lx (%s), OUTSIDE=0x%lx (%s)\n",
+ cv,
+ (CvANON(cv) ? "ANON"
+ : (cv == main_cv) ? "MAIN"
+ : CvUNIQUE(outside) ? "UNIQUE"
+ : CvGV(cv) ? GvNAME(CvGV(cv)) : "UNDEFINED"),
+ outside,
+ (!outside ? "null"
+ : CvANON(outside) ? "ANON"
+ : (outside == main_cv) ? "MAIN"
+ : CvUNIQUE(outside) ? "UNIQUE"
+ : CvGV(outside) ? GvNAME(CvGV(outside)) : "UNDEFINED"));
+
+ if (!padlist)
+ return;
+
+ pad_name = (AV*)*av_fetch(padlist, 0, FALSE);
+ pad = (AV*)*av_fetch(padlist, 1, FALSE);
+ pname = AvARRAY(pad_name);
+ ppad = AvARRAY(pad);
+
+ for (ix = 1; ix <= AvFILLp(pad_name); ix++) {
+ if (SvPOK(pname[ix]))
+ PerlIO_printf(Perl_debug_log, "\t%4d. 0x%lx (%s\"%s\" %ld-%ld)\n",
+ ix, ppad[ix],
+ SvFAKE(pname[ix]) ? "FAKE " : "",
+ SvPVX(pname[ix]),
+ (long)I_32(SvNVX(pname[ix])),
+ (long)SvIVX(pname[ix]));
+ }
+}
+#endif /* DEBUG_CLOSURES */
+
+static CV *
+cv_clone2(CV *proto, CV *outside)
{
dTHR;
AV* av;
AV* protopadlist = CvPADLIST(proto);
AV* protopad_name = (AV*)*av_fetch(protopadlist, 0, FALSE);
AV* protopad = (AV*)*av_fetch(protopadlist, 1, FALSE);
- SV** svp = AvARRAY(protopad);
+ SV** pname = AvARRAY(protopad_name);
+ SV** ppad = AvARRAY(protopad);
+ I32 fname = AvFILLp(protopad_name);
+ I32 fpad = AvFILLp(protopad);
AV* comppadlist;
CV* cv;
+ assert(!CvUNIQUE(proto));
+
ENTER;
SAVESPTR(curpad);
SAVESPTR(comppad);
+ SAVESPTR(comppad_name);
SAVESPTR(compcv);
cv = compcv = (CV*)NEWSV(1104,0);
- sv_upgrade((SV *)cv, SVt_PVCV);
+ sv_upgrade((SV *)cv, SvTYPE(proto));
CvCLONED_on(cv);
+ if (CvANON(proto))
+ CvANON_on(cv);
#ifdef USE_THREADS
- New(666, CvMUTEXP(cv), 1, pthread_mutex_t);
+ New(666, CvMUTEXP(cv), 1, perl_mutex);
MUTEX_INIT(CvMUTEXP(cv));
- New(666, CvCONDP(cv), 1, pthread_cond_t);
- COND_INIT(CvCONDP(cv));
CvOWNER(cv) = 0;
#endif /* USE_THREADS */
CvFILEGV(cv) = CvFILEGV(proto);
- CvGV(cv) = SvREFCNT_inc(CvGV(proto));
+ CvGV(cv) = (GV*)SvREFCNT_inc(CvGV(proto));
CvSTASH(cv) = CvSTASH(proto);
CvROOT(cv) = CvROOT(proto);
CvSTART(cv) = CvSTART(proto);
- if (CvOUTSIDE(proto))
- CvOUTSIDE(cv) = (CV*)SvREFCNT_inc((SV*)CvOUTSIDE(proto));
+ if (outside)
+ CvOUTSIDE(cv) = (CV*)SvREFCNT_inc(outside);
+
+ if (SvPOK(proto))
+ sv_setpvn((SV*)cv, SvPVX(proto), SvCUR(proto));
+
+ comppad_name = newAV();
+ for (ix = fname; ix >= 0; ix--)
+ av_store(comppad_name, ix, SvREFCNT_inc(pname[ix]));
comppad = newAV();
comppadlist = newAV();
AvREAL_off(comppadlist);
- av_store(comppadlist, 0, SvREFCNT_inc((SV*)protopad_name));
+ av_store(comppadlist, 0, (SV*)comppad_name);
av_store(comppadlist, 1, (SV*)comppad);
CvPADLIST(cv) = comppadlist;
- av_extend(comppad, AvFILL(protopad));
+ av_fill(comppad, AvFILLp(protopad));
curpad = AvARRAY(comppad);
av = newAV(); /* will be @_ */
av_store(comppad, 0, (SV*)av);
AvFLAGS(av) = AVf_REIFY;
- svp = AvARRAY(protopad_name);
- for ( ix = AvFILL(protopad); ix > 0; ix--) {
- SV *sv;
- if (svp[ix] != &sv_undef) {
- char *name = SvPVX(svp[ix]); /* XXX */
- if (SvFLAGS(svp[ix]) & SVf_FAKE) { /* lexical from outside? */
- I32 off = pad_findlex(name,ix,curcop->cop_seq, CvOUTSIDE(proto),
- cxstack_ix);
- if (off != ix)
+ for (ix = fpad; ix > 0; ix--) {
+ SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;
+ if (namesv && namesv != &sv_undef) {
+ char *name = SvPVX(namesv); /* XXX */
+ if (SvFLAGS(namesv) & SVf_FAKE) { /* lexical from outside? */
+ I32 off = pad_findlex(name, ix, SvIVX(namesv),
+ CvOUTSIDE(cv), cxstack_ix);
+ if (!off)
+ curpad[ix] = SvREFCNT_inc(ppad[ix]);
+ else if (off != ix)
croak("panic: cv_clone: %s", name);
}
else { /* our own lexical */
- if (*name == '@')
- av_store(comppad, ix, sv = (SV*)newAV());
+ SV* sv;
+ if (*name == '&') {
+ /* anon code -- we'll come back for it */
+ sv = SvREFCNT_inc(ppad[ix]);
+ }
+ else if (*name == '@')
+ sv = (SV*)newAV();
else if (*name == '%')
- av_store(comppad, ix, sv = (SV*)newHV());
+ sv = (SV*)newHV();
else
- av_store(comppad, ix, sv = NEWSV(0,0));
- SvPADMY_on(sv);
+ sv = NEWSV(0,0);
+ if (!SvPADBUSY(sv))
+ SvPADMY_on(sv);
+ curpad[ix] = sv;
}
}
else {
- av_store(comppad, ix, sv = NEWSV(0,0));
+ SV* sv = NEWSV(0,0);
SvPADTMP_on(sv);
+ curpad[ix] = sv;
+ }
+ }
+
+ /* Now that vars are all in place, clone nested closures. */
+
+ for (ix = fpad; ix > 0; ix--) {
+ SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;
+ if (namesv
+ && namesv != &sv_undef
+ && !(SvFLAGS(namesv) & SVf_FAKE)
+ && *SvPVX(namesv) == '&'
+ && CvCLONE(ppad[ix]))
+ {
+ CV *kid = cv_clone2((CV*)ppad[ix], cv);
+ SvREFCNT_dec(ppad[ix]);
+ CvCLONE_on(kid);
+ SvPADMY_on(kid);
+ curpad[ix] = (SV*)kid;
}
}
+#ifdef DEBUG_CLOSURES
+ PerlIO_printf(Perl_debug_log, "Cloned inside:\n");
+ cv_dump(outside);
+ PerlIO_printf(Perl_debug_log, " from:\n");
+ cv_dump(proto);
+ PerlIO_printf(Perl_debug_log, " to:\n");
+ cv_dump(cv);
+#endif
+
LEAVE;
return cv;
}
CV *
-newSUB(floor,o,proto,block)
-I32 floor;
-OP *o;
-OP *proto;
-OP *block;
+cv_clone(CV *proto)
+{
+ return cv_clone2(proto, CvOUTSIDE(proto));
+}
+
+void
+cv_ckproto(CV *cv, GV *gv, char *p)
+{
+ if ((!p != !SvPOK(cv)) || (p && strNE(p, SvPVX(cv)))) {
+ SV* msg = sv_newmortal();
+ SV* name = Nullsv;
+
+ if (gv)
+ gv_efullname3(name = sv_newmortal(), gv, Nullch);
+ sv_setpv(msg, "Prototype mismatch:");
+ if (name)
+ sv_catpvf(msg, " sub %_", name);
+ if (SvPOK(cv))
+ sv_catpvf(msg, " (%s)", SvPVX(cv));
+ sv_catpv(msg, " vs ");
+ if (p)
+ sv_catpvf(msg, "(%s)", p);
+ else
+ sv_catpv(msg, "none");
+ warn("%_", msg);
+ }
+}
+
+SV *
+cv_const_sv(CV *cv)
+{
+ OP *o;
+ SV *sv;
+
+ if (!cv || !SvPOK(cv) || SvCUR(cv))
+ return Nullsv;
+
+ sv = Nullsv;
+ for (o = CvSTART(cv); o; o = o->op_next) {
+ OPCODE type = o->op_type;
+
+ if (type == OP_NEXTSTATE || type == OP_NULL || type == OP_PUSHMARK)
+ continue;
+ if (type == OP_LEAVESUB || type == OP_RETURN)
+ break;
+ if (sv)
+ return Nullsv;
+ if (type == OP_CONST)
+ sv = cSVOPo->op_sv;
+ else if (type == OP_PADSV) {
+ AV* padav = (AV*)(AvARRAY(CvPADLIST(cv))[1]);
+ sv = padav ? AvARRAY(padav)[o->op_targ] : Nullsv;
+ if (!sv || (!SvREADONLY(sv) && SvREFCNT(sv) > 1))
+ return Nullsv;
+ }
+ else
+ return Nullsv;
+ }
+ if (sv)
+ SvREADONLY_on(sv);
+ return sv;
+}
+
+CV *
+newSUB(I32 floor, OP *o, OP *proto, OP *block)
{
dTHR;
+ char *name = o ? SvPVx(cSVOPo->op_sv, na) : Nullch;
+ GV *gv = gv_fetchpv(name ? name : "__ANON__", GV_ADDMULTI, SVt_PVCV);
+ char *ps = proto ? SvPVx(((SVOP*)proto)->op_sv, na) : Nullch;
register CV *cv;
- char *name = o ? SvPVx(cSVOPo->op_sv, na) : "__ANON__";
- GV* gv = gv_fetchpv(name, GV_ADDMULTI, SVt_PVCV);
- AV* av;
- char *s;
I32 ix;
if (o)
- sub_generation++;
- if (cv = GvCV(gv)) {
- if (GvCVGEN(gv))
- cv = 0; /* just a cached method */
- else if (CvROOT(cv) || CvXSUB(cv) || GvASSUMECV(gv)) {
- if (dowarn) { /* already defined (or promised)? */
+ SAVEFREEOP(o);
+ if (proto)
+ SAVEFREEOP(proto);
+
+ if (!name || GvCVGEN(gv))
+ cv = Nullcv;
+ else if (cv = GvCV(gv)) {
+ cv_ckproto(cv, gv, ps);
+ /* already defined (or promised)? */
+ if (CvROOT(cv) || CvXSUB(cv) || GvASSUMECV(gv)) {
+ SV* const_sv;
+ if (!block) {
+ /* just a "sub foo;" when &foo is already defined */
+ SAVEFREESV(compcv);
+ goto done;
+ }
+ /* ahem, death to those who redefine active sort subs */
+ if (curstackinfo->si_type == SI_SORT && sortcop == CvSTART(cv))
+ croak("Can't redefine active sort subroutine %s", name);
+ const_sv = cv_const_sv(cv);
+ if (const_sv || dowarn && !(CvGV(cv) && GvSTASH(CvGV(cv))
+ && HvNAME(GvSTASH(CvGV(cv)))
+ && strEQ(HvNAME(GvSTASH(CvGV(cv))),
+ "autouse"))) {
line_t oldline = curcop->cop_line;
-
curcop->cop_line = copline;
- warn("Subroutine %s redefined",name);
+ warn(const_sv ? "Constant subroutine %s redefined"
+ : "Subroutine %s redefined", name);
curcop->cop_line = oldline;
}
SvREFCNT_dec(cv);
- cv = 0;
+ cv = Nullcv;
}
}
if (cv) { /* must reuse cv if autoloaded */
cv_undef(cv);
+ CvFLAGS(cv) = CvFLAGS(compcv);
CvOUTSIDE(cv) = CvOUTSIDE(compcv);
CvOUTSIDE(compcv) = 0;
CvPADLIST(cv) = CvPADLIST(compcv);
}
else {
cv = compcv;
+ if (name) {
+ GvCV(gv) = cv;
+ GvCVGEN(gv) = 0;
+ sub_generation++;
+ }
}
- GvCV(gv) = cv;
- GvCVGEN(gv) = 0;
+ CvGV(cv) = (GV*)SvREFCNT_inc(gv);
CvFILEGV(cv) = curcop->cop_filegv;
- CvGV(cv) = SvREFCNT_inc(gv);
CvSTASH(cv) = curstash;
#ifdef USE_THREADS
CvOWNER(cv) = 0;
- New(666, CvMUTEXP(cv), 1, pthread_mutex_t);
+ New(666, CvMUTEXP(cv), 1, perl_mutex);
MUTEX_INIT(CvMUTEXP(cv));
- New(666, CvCONDP(cv), 1, pthread_cond_t);
- COND_INIT(CvCONDP(cv));
#endif /* USE_THREADS */
- if (proto) {
- char *p = SvPVx(((SVOP*)proto)->op_sv, na);
- if (SvPOK(cv) && strNE(SvPV((SV*)cv,na), p))
- warn("Prototype mismatch: (%s) vs (%s)", SvPV((SV*)cv, na), p);
- sv_setpv((SV*)cv, p);
- op_free(proto);
- }
+ if (ps)
+ sv_setpv((SV*)cv, ps);
if (error_count) {
op_free(block);
block = Nullop;
+ if (name) {
+ char *s = strrchr(name, ':');
+ s = s ? s+1 : name;
+ if (strEQ(s, "BEGIN")) {
+ char *not_safe =
+ "BEGIN not safe after errors--compilation aborted";
+ if (in_eval & 4)
+ croak(not_safe);
+ else {
+ /* force display of errors found but not reported */
+ sv_catpv(ERRSV, not_safe);
+ croak("%s", SvPVx(ERRSV, na));
+ }
+ }
+ }
}
if (!block) {
- CvROOT(cv) = 0;
- op_free(o);
copline = NOLINE;
LEAVE_SCOPE(floor);
return cv;
}
- av = newAV(); /* Will be @_ */
- av_extend(av, 0);
- av_store(comppad, 0, (SV*)av);
- AvFLAGS(av) = AVf_REIFY;
+ if (AvFILLp(comppad_name) < AvFILLp(comppad))
+ av_store(comppad_name, AvFILLp(comppad), Nullsv);
- for (ix = AvFILL(comppad); ix > 0; ix--) {
- if (!SvPADMY(curpad[ix]))
- SvPADTMP_on(curpad[ix]);
+ if (CvCLONE(cv)) {
+ SV **namep = AvARRAY(comppad_name);
+ for (ix = AvFILLp(comppad); ix > 0; ix--) {
+ SV *namesv;
+
+ if (SvIMMORTAL(curpad[ix]))
+ continue;
+ /*
+ * The only things that a clonable function needs in its
+ * pad are references to outer lexicals and anonymous subs.
+ * The rest are created anew during cloning.
+ */
+ if (!((namesv = namep[ix]) != Nullsv &&
+ namesv != &sv_undef &&
+ (SvFAKE(namesv) ||
+ *SvPVX(namesv) == '&')))
+ {
+ SvREFCNT_dec(curpad[ix]);
+ curpad[ix] = Nullsv;
+ }
+ }
}
+ else {
+ AV *av = newAV(); /* Will be @_ */
+ av_extend(av, 0);
+ av_store(comppad, 0, (SV*)av);
+ AvFLAGS(av) = AVf_REIFY;
- if (AvFILL(comppad_name) < AvFILL(comppad))
- av_store(comppad_name, AvFILL(comppad), Nullsv);
+ for (ix = AvFILLp(comppad); ix > 0; ix--) {
+ if (SvIMMORTAL(curpad[ix]))
+ continue;
+ if (!SvPADMY(curpad[ix]))
+ SvPADTMP_on(curpad[ix]);
+ }
+ }
CvROOT(cv) = newUNOP(OP_LEAVESUB, 0, scalarseq(block));
CvSTART(cv) = LINKLIST(CvROOT(cv));
CvROOT(cv)->op_next = 0;
peep(CvSTART(cv));
- if (s = strrchr(name,':'))
- s++;
- else
- s = name;
- if (strEQ(s, "BEGIN") && !error_count) {
- line_t oldline = compiling.cop_line;
- SV *oldrs = rs;
- ENTER;
- SAVESPTR(compiling.cop_filegv);
- SAVEI32(perldb);
- if (!beginav)
- beginav = newAV();
- av_push(beginav, (SV *)cv);
- DEBUG_x( dump_sub(gv) );
- rs = SvREFCNT_inc(nrs);
- GvCV(gv) = 0;
- calllist(beginav);
- SvREFCNT_dec(rs);
- rs = oldrs;
- curcop = &compiling;
- curcop->cop_line = oldline; /* might have recursed to yylex */
- LEAVE;
- }
- else if (strEQ(s, "END") && !error_count) {
- if (!endav)
- endav = newAV();
- av_unshift(endav, 1);
- av_store(endav, 0, SvREFCNT_inc(cv));
- }
- if (perldb && curstash != debstash) {
- SV *sv;
- SV *tmpstr = sv_newmortal();
+ if (name) {
+ char *s;
+
+ if (PERLDB_SUBLINE && curstash != debstash) {
+ SV *sv = NEWSV(0,0);
+ SV *tmpstr = sv_newmortal();
+ GV *db_postponed = gv_fetchpv("DB::postponed", GV_ADDMULTI, SVt_PVHV);
+ CV *cv;
+ HV *hv;
+
+ sv_setpvf(sv, "%_:%ld-%ld",
+ GvSV(curcop->cop_filegv),
+ (long)subline, (long)curcop->cop_line);
+ gv_efullname3(tmpstr, gv, Nullch);
+ hv_store(GvHV(DBsub), SvPVX(tmpstr), SvCUR(tmpstr), sv, 0);
+ hv = GvHVn(db_postponed);
+ if (HvFILL(hv) > 0 && hv_exists(hv, SvPVX(tmpstr), SvCUR(tmpstr))
+ && (cv = GvCV(db_postponed))) {
+ dSP;
+ PUSHMARK(SP);
+ XPUSHs(tmpstr);
+ PUTBACK;
+ perl_call_sv((SV*)cv, G_DISCARD);
+ }
+ }
- sprintf(buf,"%s:%ld",SvPVX(GvSV(curcop->cop_filegv)), (long)subline);
- sv = newSVpv(buf,0);
- sv_catpv(sv,"-");
- sprintf(buf,"%ld",(long)curcop->cop_line);
- sv_catpv(sv,buf);
- gv_efullname(tmpstr,gv);
- hv_store(GvHV(DBsub), SvPVX(tmpstr), SvCUR(tmpstr), sv, 0);
+ if ((s = strrchr(name,':')))
+ s++;
+ else
+ s = name;
+ if (strEQ(s, "BEGIN")) {
+ I32 oldscope = scopestack_ix;
+ ENTER;
+ SAVESPTR(compiling.cop_filegv);
+ SAVEI16(compiling.cop_line);
+ save_svref(&rs);
+ sv_setsv(rs, nrs);
+
+ if (!beginav)
+ beginav = newAV();
+ DEBUG_x( dump_sub(gv) );
+ av_push(beginav, (SV *)cv);
+ GvCV(gv) = 0;
+ call_list(oldscope, beginav);
+
+ curcop = &compiling;
+ LEAVE;
+ }
+ else if (strEQ(s, "END") && !error_count) {
+ if (!endav)
+ endav = newAV();
+ av_unshift(endav, 1);
+ av_store(endav, 0, (SV *)cv);
+ GvCV(gv) = 0;
+ }
+ else if (strEQ(s, "INIT") && !error_count) {
+ if (!initav)
+ initav = newAV();
+ av_push(initav, SvREFCNT_inc(cv));
+ }
}
- op_free(o);
+
+ done:
copline = NOLINE;
LEAVE_SCOPE(floor);
- if (!o) {
- GvCV(gv) = 0; /* Will remember in SVOP instead. */
- CvANON_on(cv);
- }
return cv;
}
-#ifdef DEPRECATED
-CV *
-newXSUB(name, ix, subaddr, filename)
-char *name;
-I32 ix;
-I32 (*subaddr)();
-char *filename;
-{
- CV* cv = newXS(name, (void(*)())subaddr, filename);
- CvOLDSTYLE_on(cv);
- CvXSUBANY(cv).any_i32 = ix;
- return cv;
+void
+newCONSTSUB(HV *stash, char *name, SV *sv)
+{
+ dTHR;
+ U32 oldhints = hints;
+ HV *old_cop_stash = curcop->cop_stash;
+ HV *old_curstash = curstash;
+ line_t oldline = curcop->cop_line;
+ curcop->cop_line = copline;
+
+ hints &= ~HINT_BLOCK_SCOPE;
+ if(stash)
+ curstash = curcop->cop_stash = stash;
+
+ newSUB(
+ start_subparse(FALSE, 0),
+ newSVOP(OP_CONST, 0, newSVpv(name,0)),
+ newSVOP(OP_CONST, 0, &sv_no), /* SvPV(&sv_no) == "" -- GMB */
+ newSTATEOP(0, Nullch, newSVOP(OP_CONST, 0, sv))
+ );
+
+ hints = oldhints;
+ curcop->cop_stash = old_cop_stash;
+ curstash = old_curstash;
+ curcop->cop_line = oldline;
}
-#endif
CV *
-newXS(name, subaddr, filename)
-char *name;
-void (*subaddr) _((CV*));
-char *filename;
+newXS(char *name, void (*subaddr) (CV *), char *filename)
{
dTHR;
+ GV *gv = gv_fetchpv(name ? name : "__ANON__", GV_ADDMULTI, SVt_PVCV);
register CV *cv;
- GV *gv = gv_fetchpv((name ? name : "__ANON__"), GV_ADDMULTI, SVt_PVCV);
- char *s;
-
- if (name)
- sub_generation++;
- if (cv = GvCV(gv)) {
- if (GvCVGEN(gv))
- cv = 0; /* just a cached method */
- else if (CvROOT(cv) || CvXSUB(cv)) { /* already defined? */
- if (dowarn) {
- line_t oldline = curcop->cop_line;
+ if (cv = (name ? GvCV(gv) : Nullcv)) {
+ if (GvCVGEN(gv)) {
+ /* just a cached method */
+ SvREFCNT_dec(cv);
+ cv = 0;
+ }
+ else if (CvROOT(cv) || CvXSUB(cv) || GvASSUMECV(gv)) {
+ /* already defined (or promised) */
+ if (dowarn && !(CvGV(cv) && GvSTASH(CvGV(cv))
+ && HvNAME(GvSTASH(CvGV(cv)))
+ && strEQ(HvNAME(GvSTASH(CvGV(cv))), "autouse"))) {
+ line_t oldline = curcop->cop_line;
curcop->cop_line = copline;
warn("Subroutine %s redefined",name);
curcop->cop_line = oldline;
cv = 0;
}
}
- if (cv) { /* must reuse cv if autoloaded */
- assert(SvREFCNT(CvGV(cv)) > 1);
- SvREFCNT_dec(CvGV(cv));
- }
+
+ if (cv) /* must reuse cv if autoloaded */
+ cv_undef(cv);
else {
cv = (CV*)NEWSV(1105,0);
sv_upgrade((SV *)cv, SVt_PVCV);
+ if (name) {
+ GvCV(gv) = cv;
+ GvCVGEN(gv) = 0;
+ sub_generation++;
+ }
}
- GvCV(gv) = cv;
- CvGV(cv) = SvREFCNT_inc(gv);
- GvCVGEN(gv) = 0;
+ CvGV(cv) = (GV*)SvREFCNT_inc(gv);
#ifdef USE_THREADS
- New(666, CvMUTEXP(cv), 1, pthread_mutex_t);
+ New(666, CvMUTEXP(cv), 1, perl_mutex);
MUTEX_INIT(CvMUTEXP(cv));
- New(666, CvCONDP(cv), 1, pthread_cond_t);
- COND_INIT(CvCONDP(cv));
CvOWNER(cv) = 0;
#endif /* USE_THREADS */
CvFILEGV(cv) = gv_fetchfile(filename);
CvXSUB(cv) = subaddr;
- if (!name)
- s = "__ANON__";
- else if (s = strrchr(name,':'))
- s++;
+
+ if (name) {
+ char *s = strrchr(name,':');
+ if (s)
+ s++;
+ else
+ s = name;
+ if (strEQ(s, "BEGIN")) {
+ if (!beginav)
+ beginav = newAV();
+ av_push(beginav, (SV *)cv);
+ GvCV(gv) = 0;
+ }
+ else if (strEQ(s, "END")) {
+ if (!endav)
+ endav = newAV();
+ av_unshift(endav, 1);
+ av_store(endav, 0, (SV *)cv);
+ GvCV(gv) = 0;
+ }
+ else if (strEQ(s, "INIT")) {
+ if (!initav)
+ initav = newAV();
+ av_push(initav, (SV *)cv);
+ }
+ }
else
- s = name;
- if (strEQ(s, "BEGIN")) {
- if (!beginav)
- beginav = newAV();
- av_push(beginav, SvREFCNT_inc(gv));
- }
- else if (strEQ(s, "END")) {
- if (!endav)
- endav = newAV();
- av_unshift(endav, 1);
- av_store(endav, 0, SvREFCNT_inc(gv));
- }
- if (!name) {
- GvCV(gv) = 0; /* Will remember elsewhere instead. */
CvANON_on(cv);
- }
+
return cv;
}
void
-newFORM(floor,o,block)
-I32 floor;
-OP *o;
-OP *block;
+newFORM(I32 floor, OP *o, OP *block)
{
dTHR;
register CV *cv;
}
cv = compcv;
GvFORM(gv) = cv;
- CvGV(cv) = SvREFCNT_inc(gv);
+ CvGV(cv) = (GV*)SvREFCNT_inc(gv);
CvFILEGV(cv) = curcop->cop_filegv;
- for (ix = AvFILL(comppad); ix > 0; ix--) {
- if (!SvPADMY(curpad[ix]))
+ for (ix = AvFILLp(comppad); ix > 0; ix--) {
+ if (!SvPADMY(curpad[ix]) && !SvIMMORTAL(curpad[ix]))
SvPADTMP_on(curpad[ix]);
}
CvSTART(cv) = LINKLIST(CvROOT(cv));
CvROOT(cv)->op_next = 0;
peep(CvSTART(cv));
- FmLINES(cv) = 0;
op_free(o);
copline = NOLINE;
LEAVE_SCOPE(floor);
}
OP *
-newANONLIST(o)
-OP* o;
+newANONLIST(OP *o)
{
return newUNOP(OP_REFGEN, 0,
mod(list(convert(OP_ANONLIST, 0, o)), OP_REFGEN));
}
OP *
-newANONHASH(o)
-OP* o;
+newANONHASH(OP *o)
{
return newUNOP(OP_REFGEN, 0,
mod(list(convert(OP_ANONHASH, 0, o)), OP_REFGEN));
}
OP *
-newANONSUB(floor, proto, block)
-I32 floor;
-OP *proto;
-OP *block;
+newANONSUB(I32 floor, OP *proto, OP *block)
{
return newUNOP(OP_REFGEN, 0,
newSVOP(OP_ANONCODE, 0, (SV*)newSUB(floor, 0, proto, block)));
}
OP *
-oopsAV(o)
-OP *o;
+oopsAV(OP *o)
{
switch (o->op_type) {
case OP_PADSV:
}
OP *
-oopsHV(o)
-OP *o;
+oopsHV(OP *o)
{
switch (o->op_type) {
case OP_PADSV:
}
OP *
-newAVREF(o)
-OP *o;
+newAVREF(OP *o)
{
if (o->op_type == OP_PADANY) {
o->op_type = OP_PADAV;
}
OP *
-newGVREF(type,o)
-I32 type;
-OP *o;
+newGVREF(I32 type, OP *o)
{
if (type == OP_MAPSTART)
return newUNOP(OP_NULL, 0, o);
}
OP *
-newHVREF(o)
-OP *o;
+newHVREF(OP *o)
{
if (o->op_type == OP_PADANY) {
o->op_type = OP_PADHV;
}
OP *
-oopsCV(o)
-OP *o;
+oopsCV(OP *o)
{
croak("NOT IMPL LINE %d",__LINE__);
/* STUB */
}
OP *
-newCVREF(flags, o)
-I32 flags;
-OP *o;
+newCVREF(I32 flags, OP *o)
{
return newUNOP(OP_RV2CV, flags, scalar(o));
}
OP *
-newSVREF(o)
-OP *o;
+newSVREF(OP *o)
{
if (o->op_type == OP_PADANY) {
o->op_type = OP_PADSV;
o->op_ppaddr = ppaddr[OP_PADSV];
return o;
}
+ else if (o->op_type == OP_THREADSV && !(o->op_flags & OPpDONE_SVREF)) {
+ o->op_flags |= OPpDONE_SVREF;
+ return o;
+ }
return newUNOP(OP_RV2SV, 0, scalar(o));
}
/* Check routines. */
OP *
-ck_concat(o)
-OP *o;
+ck_anoncode(OP *o)
+{
+ PADOFFSET ix;
+ SV* name;
+
+ name = NEWSV(1106,0);
+ sv_upgrade(name, SVt_PVNV);
+ sv_setpvn(name, "&", 1);
+ SvIVX(name) = -1;
+ SvNVX(name) = 1;
+ ix = pad_alloc(o->op_type, SVs_PADMY);
+ av_store(comppad_name, ix, name);
+ av_store(comppad, ix, cSVOPo->op_sv);
+ SvPADMY_on(cSVOPo->op_sv);
+ cSVOPo->op_sv = Nullsv;
+ cSVOPo->op_targ = ix;
+ return o;
+}
+
+OP *
+ck_bitop(OP *o)
+{
+ o->op_private = hints;
+ return o;
+}
+
+OP *
+ck_concat(OP *o)
{
if (cUNOPo->op_first->op_type == OP_CONCAT)
o->op_flags |= OPf_STACKED;
}
OP *
-ck_spair(o)
-OP *o;
+ck_spair(OP *o)
{
if (o->op_flags & OPf_KIDS) {
OP* newop;
OP* kid;
- o = modkids(ck_fun(o), o->op_type);
+ OPCODE type = o->op_type;
+ o = modkids(ck_fun(o), type);
kid = cUNOPo->op_first;
newop = kUNOP->op_first->op_sibling;
if (newop &&
!(opargs[newop->op_type] & OA_RETSCALAR) ||
newop->op_type == OP_PADAV || newop->op_type == OP_PADHV ||
newop->op_type == OP_RV2AV || newop->op_type == OP_RV2HV)) {
-
+
return o;
}
op_free(kUNOP->op_first);
}
OP *
-ck_delete(o)
-OP *o;
+ck_delete(OP *o)
{
o = ck_fun(o);
+ o->op_private = 0;
if (o->op_flags & OPf_KIDS) {
OP *kid = cUNOPo->op_first;
- if (kid->op_type != OP_HELEM)
- croak("%s argument is not a HASH element", op_desc[o->op_type]);
+ if (kid->op_type == OP_HSLICE)
+ o->op_private |= OPpSLICE;
+ else if (kid->op_type != OP_HELEM)
+ croak("%s argument is not a HASH element or slice",
+ op_desc[o->op_type]);
null(kid);
}
return o;
}
OP *
-ck_eof(o)
-OP *o;
+ck_eof(OP *o)
{
I32 type = o->op_type;
if (cLISTOPo->op_first->op_type == OP_STUB) {
op_free(o);
o = newUNOP(type, OPf_SPECIAL,
- newGVOP(OP_GV, 0, gv_fetchpv("main'ARGV", TRUE, SVt_PVAV)));
+ newGVOP(OP_GV, 0, gv_fetchpv("main::ARGV", TRUE, SVt_PVAV)));
}
return ck_fun(o);
}
}
OP *
-ck_eval(o)
-OP *o;
+ck_eval(OP *o)
{
hints |= HINT_BLOCK_SCOPE;
if (o->op_flags & OPf_KIDS) {
enter->op_other = o;
return o;
}
+ else
+ scalar((OP*)kid);
}
else {
op_free(o);
- o = newUNOP(OP_ENTEREVAL, 0, newSVREF(newGVOP(OP_GV, 0, defgv)));
+ o = newUNOP(OP_ENTEREVAL, 0, newDEFSVOP());
}
o->op_targ = (PADOFFSET)hints;
return o;
}
OP *
-ck_exec(o)
-OP *o;
+ck_exec(OP *o)
{
OP *kid;
if (o->op_flags & OPf_STACKED) {
}
OP *
-ck_gvconst(o)
-register OP *o;
+ck_exists(OP *o)
+{
+ o = ck_fun(o);
+ if (o->op_flags & OPf_KIDS) {
+ OP *kid = cUNOPo->op_first;
+ if (kid->op_type != OP_HELEM)
+ croak("%s argument is not a HASH element", op_desc[o->op_type]);
+ null(kid);
+ }
+ return o;
+}
+
+OP *
+ck_gvconst(register OP *o)
{
o = fold_constants(o);
if (o->op_type == OP_CONST)
}
OP *
-ck_rvconst(o)
-register OP *o;
+ck_rvconst(register OP *o)
{
dTHR;
SVOP *kid = (SVOP*)cUNOPo->op_first;
o->op_private |= (hints & HINT_STRICT_REFS);
if (kid->op_type == OP_CONST) {
- int iscv = (o->op_type==OP_RV2CV)*2;
- GV *gv = 0;
- kid->op_type = OP_GV;
- for (gv = 0; !gv; iscv++) {
- /*
- * This is a little tricky. We only want to add the symbol if we
- * didn't add it in the lexer. Otherwise we get duplicate strict
- * warnings. But if we didn't add it in the lexer, we must at
- * least pretend like we wanted to add it even if it existed before,
- * or we get possible typo warnings. OPpCONST_ENTERED says
- * whether the lexer already added THIS instance of this symbol.
- */
- gv = gv_fetchpv(SvPVx(kid->op_sv, na),
+ char *name;
+ int iscv;
+ GV *gv;
+
+ name = SvPV(kid->op_sv, na);
+ if ((hints & HINT_STRICT_REFS) && (kid->op_private & OPpCONST_BARE)) {
+ char *badthing = Nullch;
+ switch (o->op_type) {
+ case OP_RV2SV:
+ badthing = "a SCALAR";
+ break;
+ case OP_RV2AV:
+ badthing = "an ARRAY";
+ break;
+ case OP_RV2HV:
+ badthing = "a HASH";
+ break;
+ }
+ if (badthing)
+ croak(
+ "Can't use bareword (\"%s\") as %s ref while \"strict refs\" in use",
+ name, badthing);
+ }
+ /*
+ * This is a little tricky. We only want to add the symbol if we
+ * didn't add it in the lexer. Otherwise we get duplicate strict
+ * warnings. But if we didn't add it in the lexer, we must at
+ * least pretend like we wanted to add it even if it existed before,
+ * or we get possible typo warnings. OPpCONST_ENTERED says
+ * whether the lexer already added THIS instance of this symbol.
+ */
+ iscv = (o->op_type == OP_RV2CV) * 2;
+ do {
+ gv = gv_fetchpv(name,
iscv | !(kid->op_private & OPpCONST_ENTERED),
iscv
? SVt_PVCV
: o->op_type == OP_RV2HV
? SVt_PVHV
: SVt_PVGV);
+ } while (!gv && !(kid->op_private & OPpCONST_ENTERED) && !iscv++);
+ if (gv) {
+ kid->op_type = OP_GV;
+ SvREFCNT_dec(kid->op_sv);
+ kid->op_sv = SvREFCNT_inc(gv);
}
- SvREFCNT_dec(kid->op_sv);
- kid->op_sv = SvREFCNT_inc(gv);
}
return o;
}
OP *
-ck_formline(o)
-OP *o;
-{
- return ck_fun(o);
-}
-
-OP *
-ck_ftst(o)
-OP *o;
+ck_ftst(OP *o)
{
dTHR;
I32 type = o->op_type;
else {
op_free(o);
if (type == OP_FTTTY)
- return newGVOP(type, OPf_REF, gv_fetchpv("main'STDIN", TRUE,
+ return newGVOP(type, OPf_REF, gv_fetchpv("main::STDIN", TRUE,
SVt_PVIO));
else
- return newUNOP(type, 0, newSVREF(newGVOP(OP_GV, 0, defgv)));
+ return newUNOP(type, 0, newDEFSVOP());
}
return o;
}
OP *
-ck_fun(o)
-OP *o;
+ck_fun(OP *o)
{
dTHR;
register OP *kid;
I32 numargs = 0;
int type = o->op_type;
register I32 oa = opargs[type] >> OASHIFT;
-
+
if (o->op_flags & OPf_STACKED) {
if ((oa & OA_OPTIONAL) && (oa >> 4) && !((oa >> 4) & OA_OPTIONAL))
oa &= ~OA_OPTIONAL;
kid = kid->op_sibling;
}
if (!kid && opargs[type] & OA_DEFGV)
- *tokid = kid = newSVREF(newGVOP(OP_GV, 0, defgv));
+ *tokid = kid = newDEFSVOP();
while (oa && kid) {
numargs++;
OP *newop = newAVREF(newGVOP(OP_GV, 0,
gv_fetchpv(name, TRUE, SVt_PVAV) ));
if (dowarn)
- warn("Array @%s missing the @ in argument %d of %s()",
- name, numargs, op_desc[type]);
+ warn("Array @%s missing the @ in argument %ld of %s()",
+ name, (long)numargs, op_desc[type]);
op_free(kid);
kid = newop;
kid->op_sibling = sibl;
OP *newop = newHVREF(newGVOP(OP_GV, 0,
gv_fetchpv(name, TRUE, SVt_PVHV) ));
if (dowarn)
- warn("Hash %%%s missing the %% in argument %d of %s()",
- name, numargs, op_desc[type]);
+ warn("Hash %%%s missing the %% in argument %ld of %s()",
+ name, (long)numargs, op_desc[type]);
op_free(kid);
kid = newop;
kid->op_sibling = sibl;
}
else if (opargs[type] & OA_DEFGV) {
op_free(o);
- return newUNOP(type, 0, newSVREF(newGVOP(OP_GV, 0, defgv)));
+ return newUNOP(type, 0, newDEFSVOP());
}
if (oa) {
}
OP *
-ck_glob(o)
-OP *o;
+ck_glob(OP *o)
{
- GV *gv = newGVgen("main");
+ GV *gv;
+
+ 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)) && GvIMPORTED_CV(gv)))
+ gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV);
+
+ if (gv && GvIMPORTED_CV(gv)) {
+ static int glob_index;
+
+ append_elem(OP_GLOB, o,
+ newSVOP(OP_CONST, 0, newSViv(glob_index++)));
+ o->op_type = OP_LIST;
+ o->op_ppaddr = ppaddr[OP_LIST];
+ cLISTOPo->op_first->op_type = OP_PUSHMARK;
+ cLISTOPo->op_first->op_ppaddr = ppaddr[OP_PUSHMARK];
+ o = newUNOP(OP_ENTERSUB, OPf_STACKED,
+ append_elem(OP_LIST, o,
+ scalar(newUNOP(OP_RV2CV, 0,
+ newGVOP(OP_GV, 0, gv)))));
+ o = newUNOP(OP_NULL, 0, ck_subr(o));
+ o->op_targ = OP_GLOB; /* hint at what it used to be */
+ return o;
+ }
+ gv = newGVgen("main");
gv_IOadd(gv);
append_elem(OP_GLOB, o, newGVOP(OP_GV, 0, gv));
scalarkids(o);
}
OP *
-ck_grep(o)
-OP *o;
+ck_grep(OP *o)
{
LOGOP *gwop;
OP *kid;
o->op_ppaddr = ppaddr[OP_GREPSTART];
Newz(1101, gwop, 1, LOGOP);
-
+
if (o->op_flags & OPf_STACKED) {
OP* k;
o = ck_sort(o);
o = ck_fun(o);
if (error_count)
return o;
- kid = cLISTOPo->op_first->op_sibling;
+ kid = cLISTOPo->op_first->op_sibling;
if (kid->op_type != OP_NULL)
croak("panic: ck_grep");
kid = kUNOP->op_first;
}
OP *
-ck_index(o)
-OP *o;
+ck_index(OP *o)
{
if (o->op_flags & OPf_KIDS) {
OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */
}
OP *
-ck_lengthconst(o)
-OP *o;
+ck_lengthconst(OP *o)
{
/* XXX length optimization goes here */
return ck_fun(o);
}
OP *
-ck_lfun(o)
-OP *o;
+ck_lfun(OP *o)
{
- return modkids(ck_fun(o), o->op_type);
+ OPCODE type = o->op_type;
+ return modkids(ck_fun(o), type);
}
OP *
-ck_rfun(o)
-OP *o;
+ck_rfun(OP *o)
{
- return refkids(ck_fun(o), o->op_type);
+ OPCODE type = o->op_type;
+ return refkids(ck_fun(o), type);
}
OP *
-ck_listiob(o)
-OP *o;
+ck_listiob(OP *o)
{
register OP *kid;
-
+
kid = cLISTOPo->op_first;
if (!kid) {
o = force_list(o);
}
if (!kid)
- append_elem(o->op_type, o, newSVREF(newGVOP(OP_GV, 0, defgv)) );
+ append_elem(o->op_type, o, newDEFSVOP());
+
+ o = listkids(o);
+
+ o->op_private = 0;
+#ifdef USE_LOCALE
+ if (hints & HINT_LOCALE)
+ o->op_private |= OPpLOCALE;
+#endif
- return listkids(o);
+ return o;
}
OP *
-ck_match(o)
-OP *o;
+ck_fun_locale(OP *o)
{
- cPMOPo->op_pmflags |= PMf_RUNTIME;
- cPMOPo->op_pmpermflags |= PMf_RUNTIME;
+ o = ck_fun(o);
+
+ o->op_private = 0;
+#ifdef USE_LOCALE
+ if (hints & HINT_LOCALE)
+ o->op_private |= OPpLOCALE;
+#endif
+
return o;
}
OP *
-ck_null(o)
-OP *o;
+ck_scmp(OP *o)
{
+ o->op_private = 0;
+#ifdef USE_LOCALE
+ if (hints & HINT_LOCALE)
+ o->op_private |= OPpLOCALE;
+#endif
+
return o;
}
OP *
-ck_repeat(o)
-OP *o;
+ck_match(OP *o)
+{
+ o->op_private |= OPpRUNTIME;
+ return o;
+}
+
+OP *
+ck_null(OP *o)
+{
+ return o;
+}
+
+OP *
+ck_repeat(OP *o)
{
if (cBINOPo->op_first->op_flags & OPf_PARENS) {
o->op_private |= OPpREPEAT_DOLIST;
}
OP *
-ck_require(o)
-OP *o;
+ck_require(OP *o)
{
if (o->op_flags & OPf_KIDS) { /* Shall we supply missing .pm? */
SVOP *kid = (SVOP*)cUNOPo->op_first;
}
OP *
-ck_retarget(o)
-OP *o;
+ck_retarget(OP *o)
{
croak("NOT IMPL LINE %d",__LINE__);
/* STUB */
}
OP *
-ck_select(o)
-OP *o;
+ck_select(OP *o)
{
OP* kid;
if (o->op_flags & OPf_KIDS) {
}
OP *
-ck_shift(o)
-OP *o;
+ck_shift(OP *o)
{
I32 type = o->op_type;
if (!(o->op_flags & OPf_KIDS)) {
+ OP *argop;
+
op_free(o);
- return newUNOP(type, 0,
- scalar(newUNOP(OP_RV2AV, 0,
+#ifdef USE_THREADS
+ if (!CvUNIQUE(compcv)) {
+ argop = newOP(OP_PADAV, OPf_REF);
+ argop->op_targ = 0; /* curpad[0] is @_ */
+ }
+ else {
+ argop = newUNOP(OP_RV2AV, 0,
scalar(newGVOP(OP_GV, 0,
- gv_fetchpv((subline ? "_" : "ARGV"), TRUE, SVt_PVAV) )))));
+ gv_fetchpv("ARGV", TRUE, SVt_PVAV))));
+ }
+#else
+ argop = newUNOP(OP_RV2AV, 0,
+ scalar(newGVOP(OP_GV, 0, !CvUNIQUE(compcv) ?
+ defgv : gv_fetchpv("ARGV", TRUE, SVt_PVAV))));
+#endif /* USE_THREADS */
+ return newUNOP(type, 0, scalar(argop));
}
return scalar(modkids(ck_fun(o), type));
}
OP *
-ck_sort(o)
-OP *o;
+ck_sort(OP *o)
{
+ o->op_private = 0;
+#ifdef USE_LOCALE
+ if (hints & HINT_LOCALE)
+ o->op_private |= OPpLOCALE;
+#endif
+
if (o->op_flags & OPf_STACKED) {
OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */
OP *k;
o->op_flags |= OPf_SPECIAL;
}
}
+
return o;
}
OP *
-ck_split(o)
-OP *o;
+ck_split(OP *o)
{
register OP *kid;
- PMOP* pm;
-
+
if (o->op_flags & OPf_STACKED)
return no_fh_allowed(o);
cLISTOPo->op_first = kid;
kid->op_sibling = sibl;
}
- pm = (PMOP*)kid;
- if (pm->op_pmshort && !(pm->op_pmflags & PMf_ALL)) {
- SvREFCNT_dec(pm->op_pmshort); /* can't use substring to optimize */
- pm->op_pmshort = 0;
- }
kid->op_type = OP_PUSHRE;
kid->op_ppaddr = ppaddr[OP_PUSHRE];
scalar(kid);
if (!kid->op_sibling)
- append_elem(OP_SPLIT, o, newSVREF(newGVOP(OP_GV, 0, defgv)) );
+ append_elem(OP_SPLIT, o, newDEFSVOP());
kid = kid->op_sibling;
scalar(kid);
}
OP *
-ck_subr(o)
-OP *o;
+ck_subr(OP *o)
{
dTHR;
OP *prev = ((cUNOPo->op_first->op_sibling)
OP *cvop;
char *proto = 0;
CV *cv = 0;
+ GV *namegv = 0;
int optional = 0;
I32 arg = 0;
null(cvop); /* disable rv2cv */
tmpop = (SVOP*)((UNOP*)cvop)->op_first;
if (tmpop->op_type == OP_GV) {
- cv = GvCV(tmpop->op_sv);
- if (cv && SvPOK(cv) && !(o->op_private & OPpENTERSUB_AMPER))
- proto = SvPV((SV*)cv,na);
+ cv = GvCVu(tmpop->op_sv);
+ if (cv && SvPOK(cv) && !(o->op_private & OPpENTERSUB_AMPER)) {
+ namegv = CvANON(cv) ? (GV*)tmpop->op_sv : CvGV(cv);
+ proto = SvPV((SV*)cv, na);
+ }
}
}
o->op_private |= (hints & HINT_STRICT_REFS);
- if (perldb && curstash != debstash)
+ if (PERLDB_SUB && curstash != debstash)
o->op_private |= OPpENTERSUB_DB;
while (o2 != cvop) {
if (proto) {
switch (*proto) {
case '\0':
- return too_many_arguments(o, CvNAME(cv));
+ return too_many_arguments(o, gv_ename(namegv));
case ';':
optional = 1;
proto++;
proto++;
arg++;
if (o2->op_type != OP_REFGEN && o2->op_type != OP_UNDEF)
- bad_type(arg, "block", CvNAME(cv), o2);
+ bad_type(arg, "block", gv_ename(namegv), o2);
break;
case '*':
proto++;
goto wrapref;
{
OP* kid = o2;
- o2 = newUNOP(OP_RV2GV, 0, kid);
- o2->op_sibling = kid->op_sibling;
+ OP* sib = kid->op_sibling;
kid->op_sibling = 0;
- prev->op_sibling = o;
+ o2 = newUNOP(OP_RV2GV, 0, kid);
+ o2->op_sibling = sib;
+ prev->op_sibling = o2;
}
goto wrapref;
case '\\':
switch (*proto++) {
case '*':
if (o2->op_type != OP_RV2GV)
- bad_type(arg, "symbol", CvNAME(cv), o2);
+ bad_type(arg, "symbol", gv_ename(namegv), o2);
goto wrapref;
case '&':
if (o2->op_type != OP_RV2CV)
- bad_type(arg, "sub", CvNAME(cv), o2);
+ bad_type(arg, "sub", gv_ename(namegv), o2);
goto wrapref;
case '$':
if (o2->op_type != OP_RV2SV && o2->op_type != OP_PADSV)
- bad_type(arg, "scalar", CvNAME(cv), o2);
+ bad_type(arg, "scalar", gv_ename(namegv), o2);
goto wrapref;
case '@':
if (o2->op_type != OP_RV2AV && o2->op_type != OP_PADAV)
- bad_type(arg, "array", CvNAME(cv), o2);
+ bad_type(arg, "array", gv_ename(namegv), o2);
goto wrapref;
case '%':
if (o2->op_type != OP_RV2HV && o2->op_type != OP_PADHV)
- bad_type(arg, "hash", CvNAME(cv), o2);
+ bad_type(arg, "hash", gv_ename(namegv), o2);
wrapref:
{
OP* kid = o2;
- o2 = newUNOP(OP_REFGEN, 0, kid);
- o2->op_sibling = kid->op_sibling;
+ OP* sib = kid->op_sibling;
kid->op_sibling = 0;
- prev->op_sibling = o;
+ o2 = newUNOP(OP_REFGEN, 0, kid);
+ o2->op_sibling = sib;
+ prev->op_sibling = o2;
}
break;
default: goto oops;
}
break;
+ case ' ':
+ proto++;
+ continue;
default:
oops:
croak("Malformed prototype for %s: %s",
- CvNAME(cv),SvPV((SV*)cv,na));
+ gv_ename(namegv), SvPV((SV*)cv, na));
}
}
else
prev = o2;
o2 = o2->op_sibling;
}
- if (proto && !optional && *proto == '$')
- return too_few_arguments(o, CvNAME(cv));
+ if (proto && !optional &&
+ (*proto && *proto != '@' && *proto != '%' && *proto != ';'))
+ return too_few_arguments(o, gv_ename(namegv));
return o;
}
OP *
-ck_svconst(o)
-OP *o;
+ck_svconst(OP *o)
{
SvREADONLY_on(cSVOPo->op_sv);
return o;
}
OP *
-ck_trunc(o)
-OP *o;
+ck_trunc(OP *o)
{
if (o->op_flags & OPf_KIDS) {
SVOP *kid = (SVOP*)cUNOPo->op_first;
/* A peephole optimizer. We visit the ops in the order they're to execute. */
void
-peep(o)
-register OP* o;
+peep(register OP *o)
{
dTHR;
register OP* oldop = 0;
if (!o || o->op_seq)
return;
ENTER;
- SAVESPTR(op);
+ SAVEOP();
SAVESPTR(curcop);
for (; o; o = o->op_next) {
if (o->op_seq)
case OP_LC:
case OP_LCFIRST:
case OP_QUOTEMETA:
- if (o->op_next->op_type == OP_STRINGIFY)
+ if (o->op_next && o->op_next->op_type == OP_STRINGIFY)
null(o->op_next);
o->op_seq = op_seqmax++;
break;
case OP_STUB:
- if ((o->op_flags & (OPf_KNOW|OPf_LIST)) != (OPf_KNOW|OPf_LIST)) {
+ if ((o->op_flags & OPf_WANT) != OPf_WANT_LIST) {
o->op_seq = op_seqmax++;
- break; /* Scalar stub must produce undef. List stub is noop */
+ break; /* Scalar stub must produce undef. List stub is noop */
}
goto nothin;
case OP_NULL:
if (o->op_targ == OP_NEXTSTATE || o->op_targ == OP_DBSTATE)
- curcop = ((COP*)op);
+ curcop = ((COP*)o);
goto nothin;
case OP_SCALAR:
case OP_LINESEQ:
case OP_GV:
if (o->op_next->op_type == OP_RV2SV) {
- if (!(o->op_next->op_private & (OPpDEREF_HV|OPpDEREF_AV))) {
+ if (!(o->op_next->op_private & OPpDEREF)) {
null(o->op_next);
o->op_private |= o->op_next->op_private & OPpLVAL_INTRO;
o->op_next = o->op_next->op_next;
(op = pop->op_next) &&
pop->op_next->op_type == OP_AELEM &&
!(pop->op_next->op_private &
- (OPpDEREF_HV|OPpDEREF_AV|OPpLVAL_INTRO)) &&
+ (OPpLVAL_INTRO|OPpLVAL_DEFER|OPpDEREF)) &&
(i = SvIV(((SVOP*)pop)->op_sv) - compiling.cop_arybase)
<= 255 &&
i >= 0)
o->op_type = OP_AELEMFAST;
o->op_ppaddr = ppaddr[OP_AELEMFAST];
o->op_private = (U8)i;
- GvAVn((GV*)(((SVOP*)o)->op_sv));
+ GvAVn(((GVOP*)o)->op_gv);
}
}
o->op_seq = op_seqmax++;
break;
+ case OP_PADAV:
+ if (o->op_next->op_type == OP_RV2AV
+ && (o->op_next->op_flags && OPf_REF))
+ {
+ null(o->op_next);
+ o->op_next = o->op_next->op_next;
+ }
+ break;
+
+ case OP_PADHV:
+ if (o->op_next->op_type == OP_RV2HV
+ && (o->op_next->op_flags && OPf_REF))
+ {
+ null(o->op_next);
+ o->op_next = o->op_next->op_next;
+ }
+ break;
+
case OP_MAPWHILE:
case OP_GREPWHILE:
case OP_AND:
case OP_OR:
o->op_seq = op_seqmax++;
+ while (cLOGOP->op_other->op_type == OP_NULL)
+ cLOGOP->op_other = cLOGOP->op_other->op_next;
peep(cLOGOP->op_other);
break;
o->op_seq = op_seqmax++;
if (dowarn && o->op_next && o->op_next->op_type == OP_NEXTSTATE) {
if (o->op_next->op_sibling &&
+ o->op_next->op_sibling->op_type != OP_EXIT &&
+ o->op_next->op_sibling->op_type != OP_WARN &&
o->op_next->op_sibling->op_type != OP_DIE) {
line_t oldline = curcop->cop_line;
}
}
break;
+
+ case OP_HELEM: {
+ UNOP *rop;
+ SV *lexname;
+ GV **fields;
+ SV **svp, **indsvp;
+ I32 ind;
+ char *key;
+ STRLEN keylen;
+
+ if (o->op_private & (OPpDEREF_HV|OPpDEREF_AV|OPpLVAL_INTRO)
+ || ((BINOP*)o)->op_last->op_type != OP_CONST)
+ break;
+ rop = (UNOP*)((BINOP*)o)->op_first;
+ if (rop->op_type != OP_RV2HV || rop->op_first->op_type != OP_PADSV)
+ break;
+ lexname = *av_fetch(comppad_name, rop->op_first->op_targ, TRUE);
+ if (!SvOBJECT(lexname))
+ break;
+ fields = (GV**)hv_fetch(SvSTASH(lexname), "FIELDS", 6, FALSE);
+ if (!fields || !GvHV(*fields))
+ break;
+ svp = &((SVOP*)((BINOP*)o)->op_last)->op_sv;
+ key = SvPV(*svp, keylen);
+ indsvp = hv_fetch(GvHV(*fields), key, keylen, FALSE);
+ if (!indsvp) {
+ croak("No such field \"%s\" in variable %s of type %s",
+ key, SvPV(lexname, na), HvNAME(SvSTASH(lexname)));
+ }
+ ind = SvIV(*indsvp);
+ if (ind < 1)
+ croak("Bad index while coercing array into hash");
+ rop->op_type = OP_RV2AV;
+ rop->op_ppaddr = ppaddr[OP_RV2AV];
+ o->op_type = OP_AELEM;
+ o->op_ppaddr = ppaddr[OP_AELEM];
+ SvREFCNT_dec(*svp);
+ *svp = newSViv(ind);
+ break;
+ }
+
default:
o->op_seq = op_seqmax++;
break;